WO2016143386A1 - Press device and method for controlling press device - Google Patents

Press device and method for controlling press device Download PDF

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Publication number
WO2016143386A1
WO2016143386A1 PCT/JP2016/051271 JP2016051271W WO2016143386A1 WO 2016143386 A1 WO2016143386 A1 WO 2016143386A1 JP 2016051271 W JP2016051271 W JP 2016051271W WO 2016143386 A1 WO2016143386 A1 WO 2016143386A1
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WO
WIPO (PCT)
Prior art keywords
slide
load
unit
molding
holding
Prior art date
Application number
PCT/JP2016/051271
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French (fr)
Japanese (ja)
Inventor
基一郎 河本
岡本　雅之
Original Assignee
コマツ産機株式会社
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Publication date
Application filed by コマツ産機株式会社 filed Critical コマツ産機株式会社
Publication of WO2016143386A1 publication Critical patent/WO2016143386A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • B30B1/34—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen

Definitions

  • the present invention relates to a press device and a control device for the press device.
  • CFRP carbon fiber reinforced plastic
  • CFRP is a mixture of carbon fiber and resin.
  • resin a thermosetting resin and a thermoplastic resin are roughly used, and as the carbon fiber, a continuous fiber and a discontinuous fiber are used.
  • RTM Resin Transfer Molding
  • SMC Sheet Molding Compound
  • SS Stampable Sheet
  • an intermediate base material (preform material) formed of carbon fiber is set in a mold, and pressure molding is performed while injecting resin.
  • a sheet in which carbon fiber is impregnated with a resin is heated and press-molded by a press.
  • press molding is performed using hydraulic pressure because a molding load must be continuously applied to the mold for a predetermined time. For this reason, the press apparatus which performs a press work by moving a slide to an up-down direction with a hydraulic cylinder is used (for example, refer patent document 1).
  • a press device is a press device that performs press molding using an upper mold and a lower mold, and includes a slide, a drive unit, a load applying unit, a holding unit, a control unit, It has.
  • the upper mold is attached to the lower surface of the slide.
  • a drive part has an electric motor and a 1st transmission mechanism, and raises / lowers a slide.
  • the first transmission mechanism transmits the drive of the electric motor to the slide.
  • the load applying unit moves the upper mold downward by hydraulic pressure to apply a molding load to the material.
  • the holding portion mechanically holds the slide so as to receive the reaction force of the forming load.
  • the control unit performs control to apply a molding load to the material by the load applying unit after the slide is moved to a predetermined height by the driving unit and the slide is held by the holding unit.
  • the drive part using an electric motor and the load provision part using hydraulic pressure are provided.
  • the slide is moved downward by an electric motor at a predetermined height, and the upper mold is moved downward from the height using hydraulic pressure, thereby applying a molding load to the material and performing press molding. I can do it. Therefore, the time required for the slide stroke can be shortened compared to the case where the slide is moved to a predetermined height by hydraulic pressure, and the time required for press molding can be shortened.
  • the predetermined height is, for example, a molding region, which is a region where press molding is performed by the upper mold and the lower mold by applying a molding load.
  • the press device according to the second invention is the press device according to the first invention, and the control unit stops driving the electric motor after holding the slide by the holding unit. In the state where the slide is held by the holding unit, the electric motor can be stopped in this way, and therefore the load on the electric motor can be reduced.
  • a press device is the press device according to the first invention, wherein the holding portion mechanically fixes the first transmission mechanism to slide the slide so as to receive the reaction force of the molding load. Hold mechanically.
  • the slide can be held against the reaction force of the forming load, and processing can be performed with high accuracy. Further, since the electric motor can be stopped in a state where the slide is held by the holding portion, the burden on the electric motor can be reduced.
  • a press device is the press device according to the third invention, wherein the first transmission mechanism has a gear.
  • the holding part has a fitting part and a moving part.
  • the fitting portion can be fitted between the gear teeth.
  • the moving unit moves the fitting unit to a position between the gear teeth.
  • the load applying unit applies a forming load to the material by moving the slide downward.
  • the holding portion mechanically holds the slide so as to receive the reaction force of the molding load by moving the fitting portion between the gear teeth and mechanically fixing the first transmission mechanism. In this manner, the molding load can be received by moving the fitting portion between the gear teeth of the first transmission mechanism.
  • a press device is the press device according to the third invention, wherein the slide includes a slide main body, and a die mounting portion that is disposed on the lower side of the slide main body and to which the upper die is attached.
  • the load application unit applies a molding load to the material by moving the mold attachment unit downward.
  • the holding unit mechanically holds the slide so as to receive the reaction force of the molding load by mechanically fixing the slide body.
  • the molding load can be received by fixing the slide body at a predetermined height and applying the molding load to the material by the mold mounting portion.
  • a press device is the press device according to the fifth invention, further comprising a crown and an upright.
  • the crown is disposed above the slide and movably supports the slide.
  • the upright supports the crown above the slide.
  • the holding part includes a fitting part, a fitted part, and a moving part.
  • the fitting portion is provided on the slide body and is movable toward the upright.
  • the fitted portion is provided on the side surface of the upright on the slide side.
  • the moving part moves the fitting part to fit the fitted part.
  • the holding part mechanically holds the slide so as to receive the reaction force of the molding load by fitting the fitting part to the fitted part.
  • a press device is the press device according to the third invention, and includes a crown.
  • the crown is disposed above the slide and movably supports the slide.
  • the first transmission mechanism has a ball screw part and a support part.
  • the ball screw portion is arranged in the vertical direction and supports the crown above the slide.
  • the support portion is fixed to the crown and screwed with the ball screw portion.
  • the ball screw portion is rotated by driving the electric motor.
  • the drive unit lowers the slide to a predetermined height by rotating the ball screw unit and moving the crown downward together with the support unit. Accordingly, the slide can be lowered to a predetermined height using the driving force of the electric motor.
  • a press device is the press device according to the seventh invention, wherein the holding part has a fitted part, a fitting part, and a moving part.
  • the fitted portion is fixed to the ball screw portion.
  • the fitting portion can be fitted to the fitted portion.
  • the moving part moves the fitting part to fit the fitted part.
  • the holding part holds the position of the slide so as to receive the reaction force of the molding load by fitting the fitting part to the fitted part. In this way, the reaction force of the molding load can be received by fixing the ball screw portion with the holding portion.
  • a press device is the press device according to the first invention, wherein the load applying portion has a hydraulic cylinder disposed on the slide, and a forming load is applied to the material by the hydraulic pressure of the hydraulic cylinder. To do.
  • the hydraulic cylinder for applying a molding load to the slide in this manner, the molding die can be applied to the material by moving the upper mold downward with a predetermined operating pressure.
  • a press device is the press device according to the first aspect of the present invention, further comprising a crown.
  • the crown is disposed above the slide and supports the slide so as to be movable up and down.
  • the load application unit includes a hydraulic cylinder and a second transmission mechanism.
  • the hydraulic cylinder has a piston rod that can move in the horizontal direction, and is disposed on the crown.
  • the second transmission mechanism has a booster mechanism that amplifies the force of the hydraulic cylinder and transmits it to the slide.
  • the second transmission mechanism converts the horizontal movement of the piston rod into a vertical movement and transmits the movement to the slide.
  • the hydraulic cylinder can be arranged so that the piston rod is in the horizontal direction. For this reason, the height of a press apparatus can be made low rather than arrange
  • a press device is the press device according to the tenth aspect of the invention, wherein the second transmission mechanism has a plunger that is fixed to the upper side of the slide and guided in the vertical direction.
  • the booster mechanism includes a first member, a second member, and a third member.
  • the first member is rotatably connected to the piston rod.
  • the second member connects between the first member and the plunger.
  • the third member connects between the first member and the crown.
  • the second member is rotatable with respect to each of the upper end portion of the plunger and the first member.
  • the third member is rotatable with respect to each of the first member and the crown.
  • a press device is the press device according to the eleventh aspect of the present invention, wherein the third member is connected to the first member at the connecting portion between the first member and the second member.
  • space saving can be achieved by making the connection part between the 1st member and the 2nd member and the connection part between the 1st member and the 3rd member into the same location.
  • a press device is the press device according to any one of the first to twelfth inventions, further comprising an inclination correction unit.
  • the tilt correction unit corrects the tilt of the slide so that the upper mold is kept horizontal.
  • a control part correct
  • the load may be biased depending on the shape of the workpiece formed on the mold, and the upper mold may be inclined.
  • by providing the inclination correction unit the inclination of the upper mold can be reduced, and the processing accuracy can be improved.
  • a press device is the press device according to the thirteenth aspect of the present invention, wherein the inclination correcting unit has a plurality of hydraulic cylinders, a pump, and a valve provided for each hydraulic cylinder.
  • the pump supplies hydraulic oil to a plurality of hydraulic cylinders.
  • a valve is provided for each hydraulic cylinder and adjusts the amount of hydraulic oil supplied to the hydraulic cylinder.
  • the piston rod of the hydraulic cylinder contacts the slide from below when a molding load is applied.
  • the control unit controls the valve so that the strokes of the piston rods of the plurality of hydraulic cylinders have the same length when the molding load is applied by the load applying unit. Thereby, when a liquid or soft soft material such as CFRP is pressed, the inclination of the upper mold can be reduced.
  • a control method for a press device is a control method for a press device that press-forms a material using an upper die and a lower die, and includes a moving step, a holding step, and a load application.
  • a process In the moving step, the drive of the electric motor is transmitted to the slide to which the upper mold is attached, and the slide is moved to a predetermined height.
  • the holding step the slide is mechanically held so as to receive the reaction force of the molding load.
  • the load applying step the upper mold is moved downward by hydraulic pressure from a predetermined height to apply a molding load to the material.
  • the slide can be moved downward by an electric motor at a predetermined height, and press molding can be performed by applying a molding load from the height using hydraulic pressure. Therefore, the time required for the slide stroke can be shortened, and the time required for press molding can be shortened. Furthermore, a holding portion for holding the slide is provided, the slide can be held so as to receive the reaction force of the molding load, and processing can be performed with high accuracy.
  • a control method for a press device according to a sixteenth invention is a control method for a press device according to a fifteenth invention, further comprising a stopping step.
  • the stop process the drive of the electric motor is stopped after the holding process.
  • the electric motor can be stopped in this way, so that the burden on the electric motor can be reduced. (The invention's effect)
  • ADVANTAGE OF THE INVENTION According to this invention, the control method of a press apparatus and a press apparatus which can shorten the time which press processing requires can be provided.
  • FIG. 1 is a schematic diagram showing a configuration of a press apparatus 1 according to an embodiment of the present invention.
  • the press apparatus 1 performs press molding on a resin material such as CFRP.
  • a preform material 301 formed of carbon fiber is shown.
  • the preform material 301 and the molten thermosetting resin are pressed by the press device 1.
  • the press device 1 mainly includes a bed 2, an upright 3, a crown 4, a slide 5, a slide drive unit 6, a load applying unit 7, a slide holding unit 8, an inclination correction unit 9, and a bolster 10. And a control unit 11 (see FIG. 2).
  • the bed 2 is embedded in the floor and constitutes the base of the press device 1.
  • the uprights 3 are columnar members, and four are arranged on the bed 2.
  • the four uprights 3 are arranged so as to form rectangular vertices in plan view.
  • the crown 4 is supported upward by the four uprights 3.
  • the slide 5 is suspended below the crown 4 so as to be movable up and down.
  • An upper mold 12a is detachably attached to the lower surface 5s of the slide 5 by a die clamper (not shown).
  • the bolster 10 is disposed on the bed 2 below the slide 5. On the upper side of the bolster 10, a lower mold 12b is placed.
  • the slide drive unit 6 is provided on the crown 4 and raises and lowers the slide 5 suspended below the crown 4.
  • the slide drive unit 6 lowers the slide 5 to a height (an example of a predetermined height) that reaches the molding region.
  • the molding region is a region where press molding is performed by the upper mold 12a and the lower mold 12b by applying a molding load.
  • the load applying unit 7 lowers the slide 5 while applying a predetermined operating pressure to the slide 5 that has reached the forming region by using hydraulic pressure, thereby applying a material to the material between the upper mold 12a and the lower mold 12b.
  • a molding load is applied. Press molding is performed by applying the molding load.
  • the slide holding unit 8 holds the slide 5 so as to receive the reaction force of the molding load.
  • the slide drive unit 6 is mechanically fixed to hold the slide 5 so as not to move above a height (an example of a predetermined height) reaching the forming region.
  • the inclination correction unit 9 corrects the inclination of the slide 5 in order to keep the slide 5 horizontal while applying a molding load to the preform material 301 and the thermosetting resin.
  • the control unit 11 performs press molding by controlling the slide driving unit 6, the load applying unit 7, the slide holding unit 8, the inclination correcting unit 9, and the like.
  • the slide drive unit 6 is provided on the crown 4 and moves the slide 5 up and down.
  • the slide drive unit 6 supports the slide 5 at four points.
  • the slide drive unit 6 includes four servo motors 60 that are drive sources and four transmission mechanisms 66 that transmit the drive of each servo motor 60 to the slide.
  • Each transmission mechanism 66 includes a first speed reducer 61 and a second speed reducer 62 that decelerate the rotation of each servo motor 60, and an elevating unit 63 that converts the decelerated rotational motion into a reciprocating motion in the vertical direction.
  • the lower end is fixed to the slide 5 and has a plunger 64 that moves the slide 5 in the vertical direction, and a plunger holder 65 that guides the plunger 64 in the vertical direction. It can be said that the plunger holder 65 restricts the movement of the plunger 64 in the left-right direction.
  • FIG. 2 is a diagram showing the configuration of one set of servo motor 60 and transmission mechanism 66.
  • the servo motor 60 is attached to the crown 4 so that the drive shaft 60a is arranged in the horizontal direction.
  • the first speed reducer 61 is a constant speed reducer and is connected to the drive shaft 60 a of the servo motor 60.
  • the first speed reducer 61 has a large pulley 61a, a first gear 61b, a first pinion 61c, a second gear 61d, a second pinion 61e, and a third pinion 61f.
  • the rotation of the small pulley 68 fixed to the drive shaft 60 a of the servomotor 60 is transmitted by the belt 67.
  • the first gear 61b meshes with a first pinion 61c provided integrally with the large pulley 61a.
  • the second gear 61d meshes with a second pinion 61e provided integrally with the first gear 61b.
  • the third pinion 61 f is provided integrally with the second gear 61 d and meshes with a large-diameter helical gear 62 a disposed on the outer periphery of the second reduction gear 62.
  • the second speed reducer 62 is a Whitworth speed reducer that transmits power to the eccentric shaft 63a of the elevating unit 63 by decelerating so that the rotational speed during one rotation becomes unequal.
  • the second reduction device 62 includes a helical gear 62a, a lever 62b, and a connecting member 62c.
  • the helical gear 62 a has a ring shape and is disposed on the outer peripheral portion of the second reduction gear 62.
  • the lever 62b is fixed to an eccentric shaft 63a provided so as to protrude from the frame of the crown 4 in the horizontal direction.
  • the connecting member 62c connects between the lever 62b and the inner periphery of the helical gear 62a.
  • the rotational center of the helical gear 62a is arranged vertically above the axis of the eccentric shaft 63a.
  • the elevating part 63 has an eccentric shaft 63a, an eccentric drum 63b, and a connecting rod 63c.
  • the eccentric shaft 63a is pivotally supported by the frame of the crown 4 on both sides of the eccentric drum 63b.
  • the eccentric drum 63b is formed in a disc shape eccentric with respect to the eccentric shaft 63a, and rotates eccentrically with the rotation of the eccentric shaft 63a.
  • the connecting rod 63c is connected to the eccentric drum 63b.
  • a plunger 64 is connected below the connecting rod 63c, and the slide 5 is attached below the plunger 64.
  • the plunger holder 65 is fixed to the lower side of the crown 4 and guides the plunger 64 in the vertical direction.
  • the eccentric drum 63b of the lifting / lowering part 63 having the above configuration rotates eccentrically, the connecting rod 63c swings, the plunger 64 moves in the vertical direction, and the slide 5 moves in the vertical direction.
  • FIGS. 3A and 3B are views for explaining the fixing of the transmission mechanism 66 by the slide holding portion 8.
  • the slide holding unit 8 holds the slide 5 at the height of the upper limit position of the molding region by fixing the respective helical gears 62a to which the drive of the four servomotors 60 is transmitted.
  • the slide holding part 8 has a fitting part 80 and a moving part 86 that moves the fitting part 80 toward the helical gear 62a.
  • the moving unit 86 includes a hydraulic cylinder 81, a pump 83, a holding hydraulic circuit 87, and a hydraulic oil tank 85.
  • the holding hydraulic circuit 87 mainly includes a direction switching valve 82, a first connection path 84a, a second connection path 84b, a third connection path 84c, and an oil discharge path 84d.
  • the hydraulic cylinder 81 has a cylinder tube 81a, a piston 81b movable within the cylinder tube 81a, and a piston rod 81c connected to the piston 81b.
  • the space in the cylinder tube 81a is divided by the piston 81b into a first space 81d on the piston rod 81c side and a second space 81e on the opposite side to the piston rod 81c.
  • the first connecting path 84a circulates hydraulic oil and connects the first space 81d and the direction switching valve 82.
  • the hydraulic fluid flows through the second connection path 84b and connects between the second space 81e and the direction switching valve 82.
  • the third connection path 84 c connects between the hydraulic oil tank 85 and the direction switching valve 82.
  • a pump 83 is disposed in the third connection path 84c.
  • the oil drain passage 84 d connects between the direction switching valve 82 and the hydraulic oil tank 85.
  • the direction switching valve 82 connects the first connection path 84a and the third connection path 84c and connects the second connection path 84b and the oil drain path 84d, and connects the first connection path 84a and the oil drain path 84d.
  • the state is switched between a state where the two connection paths 84b and the third connection path 84c are connected and a closed state where all the flow paths are closed.
  • the direction switching valve 82 and the pump 83 are controlled by the control unit 11.
  • the fitting part 80 can be fitted between the teeth 621 of the helical gear 62a.
  • the fitting portion 80 is disposed at the tip of the piston rod 81c. Since it is driven by the servo motor 60, the control unit 11 described later can stop the helical gear 62 a so that the space between the teeth 621 is located at a position facing the fitting unit 80. Thereafter, the direction switching valve 82 is switched to operate the pump 83 so that the first connection path 84a and the oil discharge path 84d are connected and the second connection path 84b and the third connection path 84c are connected.
  • the hydraulic oil is supplied to the second space 81e, the hydraulic oil is discharged from the first space 81d, and the piston 81b is pushed so that the piston rod extends 81c.
  • the fitting portion 80 arranged at the tip of the piston rod 81c moves toward the helical gear 62a and fits between the teeth 621 as shown in FIG.
  • the transmission mechanism 66 is mechanically fixed by the slide holding portion 8.
  • the direction switching valve 82 is switched so that the first connection path 84a and the third connection path 84c are connected and the second connection path 84b and the oil discharge path 84d are connected.
  • the pump 83 hydraulic oil is supplied to the first space 81d and discharged from the second space 81e.
  • the piston rod 81 c is drawn into the cylinder tube 81 a and the fitting portion 80 is separated from between the teeth 621.
  • FIG. 3 only the holding hydraulic circuit 87 for one hydraulic cylinder 81 is shown, but a holding hydraulic circuit 87 is provided for each of the four hydraulic cylinders 81.
  • the pump 83 and the hydraulic oil tank 85 may be used in common for the four holding hydraulic circuits 87.
  • the hydraulic cylinder 81 is not limited to a double-acting type but may be a single-acting type.
  • the load application unit 7 performs press molding by applying a molding load to the preform material 301 and the thermosetting resin by moving the slide 5 downward at a predetermined pressure.
  • the predetermined pressure is a pressure at which a desired molding load can be applied to the preform material 301 and the thermosetting resin.
  • FIG. 4 is a diagram illustrating a configuration of the load applying unit 7.
  • the load applying unit 7 mainly includes four hydraulic cylinders 71 provided in the slide 5, a load hydraulic circuit 78 connected to each hydraulic cylinder 71, a pump 75 for supplying hydraulic oil, and an operation. And an oil tank 77.
  • the load hydraulic circuit 78 includes a direction switching valve 72, a flow rate adjustment valve 73, a pressure control valve 74, a first connection path 76a, a second connection path 76b, a third connection path 76c, and an oil discharge path 76d.
  • the hydraulic cylinder 71 has a cylinder tube 71a arranged in the vertical direction and a piston 71b that can move in the vertical direction in the cylinder tube 71a.
  • the piston 71 b is connected to the lower end of the plunger 64.
  • the space in the cylinder tube 71a is divided into a lower space 71c and an upper space 71d by the piston 71b.
  • connection path 76a the hydraulic oil flows and connects between the lower space 71c and the direction switching valve 72.
  • second connection path 76 b hydraulic oil flows and connects the upper space 71 d and the direction switching valve 72.
  • the third connection path 76 c connects between the hydraulic oil tank 77 and the direction switching valve 72.
  • a pump 75 is disposed in the third connection path 76c.
  • the oil drain passage 76 d connects between the direction switching valve 72 and the hydraulic oil tank 77.
  • the flow rate adjustment valve 73 is provided in the third connection path 76c, and the pressure control valve 74 is provided on the flow path connecting the third connection path 76c and the oil drainage path 76d.
  • the direction switching valve 72 connects the first connection path 76a and the third connection path 76c and connects the second connection path 76b and the oil drain path 76d, and connects the first connection path 76a and the oil drain path 76d.
  • the state is switched between a state in which the two connection paths 76b and the third connection path 76c are connected and a closed state in which all the flow paths are closed.
  • the slide 5 By controlling the direction switching valve 72, the flow rate adjusting valve 73, the pressure control valve 74, and the pump 75, the slide 5 can be moved downward at a predetermined pressure, and a molding load can be applied to the preform material 301 and the thermosetting resin. That is, the direction switching valve 72 is switched to a state in which the first connection path 76a and the third connection path 76c are connected and the second connection path 76b and the oil discharge path 76d are connected, and the flow rate adjusting valve 73, the pressure control valve 74, and the pump By controlling 75, hydraulic oil is supplied to the lower space 71c and discharged from the upper space 71d. Thereby, the slide 5 moves downward and a desired molding load is applied to the upper mold 12a.
  • the direction switching valve 72 is switched to a state in which the first connection path 76a and the oil discharge path 76d are connected and the second connection path 76b and the third connection path 76c are connected, and the flow rate adjusting valve 73, the pressure control valve 74, and the pump By controlling 75, the hydraulic oil is supplied to the upper space 71d and discharged from the lower space 71c. Thereby, the slide 5 moves upward.
  • FIG. 4 only the load hydraulic circuit 78 of one hydraulic cylinder 71 is shown, but the load hydraulic circuit 78 is provided in each of the four hydraulic cylinders 71. Further, the pump 75, the hydraulic oil tank 77, and the like may be used in common for the four load hydraulic circuits 78.
  • the inclination correction unit 9 corrects the inclination of the slide 5 when a molding load is applied to the preform material 301 and the thermosetting resin.
  • FIG. 5 is a diagram illustrating a configuration of the inclination correction unit 9.
  • the inclination correction unit 9 mainly includes four sets of contact portions 90, a hydraulic cylinder 91, a linear sensor 92, a correction hydraulic circuit 98, a pump 95 that supplies hydraulic oil to the four hydraulic cylinders 91, and a hydraulic oil tank. 97.
  • FIG. 5 four hydraulic cylinders 91 are shown side by side for explanation, but actually, the four hydraulic cylinders 91 are arranged below the slide 5 and at the four corners of the slide 5 in plan view.
  • FIG. 1 only two hydraulic cylinders 91 on the front side of the paper are shown, and two more hydraulic cylinders 91 are arranged on the back side of the paper.
  • a correction hydraulic circuit 98 is connected to each of the four hydraulic cylinders 91, and hydraulic oil is supplied from one pump 95 to the hydraulic cylinder 91 via the correction hydraulic circuit 98. Note that since the correction hydraulic circuit 98 of the four hydraulic cylinders 91 has the same configuration, only one hydraulic cylinder 91 will be described.
  • the hydraulic cylinder 91 includes a cylinder tube 91a arranged in the vertical direction, a piston 91b that can move in the vertical direction in the cylinder tube 91a, and a piston rod 91c that is connected to the piston 91b and can expand and contract upward from the cylinder tube 91a. And have.
  • a contact portion 90 is provided at the upper end of the piston rod 91c. The contact portion 90 is in contact with the slide 5 while a molding load is applied.
  • the space in the cylinder tube 91a is divided into a lower space 91d and an upper space 91e by the piston 91b.
  • the linear sensor 92 monitors the position of the contact portion 90 and transmits information related to the position to the control unit 11.
  • the correction hydraulic circuit 98 includes a first servo valve 93, a second servo valve 94, a first connection path 96a, a second connection path 96b, a third connection path 96c, and an oil discharge path 96d. Yes.
  • the hydraulic fluid flows through the first connection path 96 a and connects the lower space 91 d and the first servo valve 93.
  • the hydraulic fluid flows through the second connection path 96b and connects between the upper space 91e and the second servo valve 94.
  • the third connection path 96 c connects between the hydraulic oil tank 97 and the first servo valve 93 and the second servo valve 94.
  • a pump 95 is disposed in the third connection path 96c.
  • the oil drainage passage 96 d connects between the first servo valve 93 and the hydraulic oil tank 97.
  • the first servo valve 93 can connect the first connection path 96a to the third connection path 96c or the oil discharge path 96d while controlling the flow rate.
  • the second servo valve 94 can connect the second connection path 96b to the third connection path 96c or the oil discharge path 96d while adjusting the flow rate.
  • the third connection passages 96 c of the four correction hydraulic circuits 98 are branched from the downstream side of the pump 95 and connected to the first servo valve 93 and the second servo valve 94, respectively. Further, the oil drainage passage 96 d connected to the first servo valve 93 and the second servo valve 94 of the four correction hydraulic circuits 98 merges on the upstream side of the hydraulic oil tank 97.
  • the control unit 11 performs independent control of the four-axis hydraulic cylinder 91. When the molding load is applied, the controller 11 controls the first servo valve 93 so that the position of the four-axis hydraulic cylinder 91, that is, the position of the abutting portion 90 that abuts the lower surface 5s of the slide 5 is the same.
  • the second servo valve 94 is controlled. That is, while feeding back the position information of the linear sensor 92 to the control unit 11, the first servo valve 93 and the second servo valve 94 are controlled to supply hydraulic oil to the lower space 91d or the upper space 91e, and the piston rod 91c. By controlling the stroke, the height positions of the four contact portions 90 are controlled to be the same position.
  • FIG. 6 is a block diagram showing a control configuration of the press apparatus 1 of the present embodiment.
  • the control unit 11 drives and controls the servo motor 60 of the slide drive unit 6 to move the slide 5 up and down.
  • the control unit 11 controls the fitting unit 80 by operating the hydraulic cylinder 81 by controlling the pump 83 and the direction switching valve 82 of the slide holding unit 8.
  • the control unit 11 controls the direction switching valve 72, the flow rate adjustment valve 73, the pressure control valve 74, and the pump 75 of the load applying unit 7 so that a predetermined pressure is applied to the slide 5, and the upper mold 12a and the lower mold are controlled. A molding load is applied to the preform material 301 and the thermosetting resin between 12b.
  • the control unit 11 controls the tilt of the slide 5 when a forming load is applied by controlling the pump 95 and the four first servo valves 93 and the second servo valve 94 of the tilt correction unit 9 based on the detection result of the linear sensor 92. Correct.
  • the controller 11 controls the servo motor 60, the direction switching valve 82, the direction switching valve 72, the flow rate adjusting valve 73, the pressure control valve 74, the first servo valve 93, and the second servo valve 94 four by four. However, in FIG. 6, only one is omitted.
  • FIG. 7 is a flowchart showing a control method of the press apparatus 1 of the present embodiment.
  • FIG. 8 is a diagram showing a graph of the temporal change in the height of the upper die 12a during press working. In FIG. 8, the position of the upper mold 12a is indicated by a graph of G1, and the position of the lower mold 12b is indicated by a graph of G2.
  • step S10 the control unit 11 drives the four servo motors 60 to lower the slide 5 to the molding region (also referred to as the upper limit position of the molding region) (see times t1 to t2 in FIG. 8).
  • step S20 the control unit 11 controls the pump 83 and the direction switching valve 82 of the slide holding unit 8 so that the fitting unit 80 has the respective teeth of the four helical gears 62a. Fit between 621.
  • the transmission mechanism 66 is fixed.
  • the control unit 11 stops energization of the servo motor 60 in step S30.
  • a distance d1 shown in FIG. 8 indicates a stroke until the slide 5 reaches the forming region.
  • a distance d2 (an example of a predetermined height) indicates a distance from the lower mold 12b to the upper mold 12a.
  • the distance d2 from the lower mold 12b is a molding region, which is a region where press molding is performed by applying a molding load.
  • the contact portion 90 of the inclination correction portion 9 contacts the lower surface 5s of the slide 5.
  • step S35 the thermosetting resin is injected between the upper mold 12a and the lower mold 12b with the slide 5 stopped.
  • an injection path 400 for injecting a thermosetting resin is formed in the upper mold 12 a, and the thermosetting resin is supplied through the injection path 400.
  • the control unit 11 controls the pump 75, the direction switching valve 72, the flow rate adjustment valve 73 and the pressure control valve 74 of the load application unit 7 to drive the four hydraulic cylinders 71 in the slide 5.
  • the slide 5 is moved downward with a desired operating pressure.
  • thermosetting resin is pressurized between the upper mold 12a and the lower mold 12b.
  • the preform material 301 and the thermosetting resin are molded.
  • the distance d3 shown in FIG. 8 indicates the downward movement of the slide 5 during load forming. In FIG. 8, the distance d3 is exaggerated.
  • step S50 the pressurized state is maintained for a predetermined time (see times t3 to t4 in FIG. 8).
  • the height of the upper mold 12a is constant.
  • the slide 5 is slightly lowered accordingly.
  • the control unit 11 drives the hydraulic cylinder 91 by controlling the pump 95 and the four sets of the first servo valve 93 and the second servo valve 94 of the tilt correction unit 9, and the slide 5 The control is performed so as to keep the inclination below a predetermined inclination.
  • step S ⁇ b> 60 the control unit 11 controls the direction switching valve 72, the flow rate adjustment valve 73 and the pressure control valve 74 of the load application unit 7, and stops applying the load to the slide 5.
  • step S ⁇ b> 60 the control unit 11 energizes the servo motor 60.
  • step S70 the control unit 11 drives the hydraulic cylinder 81 by controlling the pump 83 and the direction switching valve 82 of the slide holding unit 8, and separates the fitting unit 80 from between the teeth 621 of the helical gear 62a. Let Thereby, the fixing of the transmission mechanism 66 is released.
  • step S80 the control unit 11 controls the servo motor 60 to raise the slide 5 to the original position (see times t4 to t5 in FIG. 8). Then, the processed product after the press work is taken out, and the next press work is performed.
  • Embodiment 2 Below, the press apparatus 100 in Embodiment 2 which concerns on this invention is demonstrated.
  • the press device 100 according to the second embodiment is different from the press device 1 according to the first embodiment in the configuration of the load applying unit and the slide holding unit.
  • the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the description thereof is omitted as appropriate.
  • FIG. 9 is a schematic diagram showing the configuration of the press device 100 according to the embodiment of the present invention.
  • the press device 100 according to the present embodiment includes a bed 2, an upright 3, a crown 4, a slide 105, a slide driving unit 6, a load applying unit 107, a slide holding unit 108, an inclination correcting unit 9, A bolster 10 and a control unit 11 (see FIG. 10A) are provided.
  • FIG. 10A and FIG. 10B are diagrams showing the configuration of the slide holding unit 108 of the present embodiment.
  • the slide holding unit 108 of the press device 100 includes a fitted part 181, a fitting part 182 fitted to the fitted part 181, and a moving part 86 that moves the fitting part 182 toward the fitted part 181. have.
  • Four sets of the fitted portion 181, the fitting portion 182, and the moving portion 86 are provided.
  • the configuration of the moving unit 86 is the same as that of the first embodiment, and includes a hydraulic cylinder 81 and a holding hydraulic circuit 87 that drives the hydraulic cylinder 81.
  • the fitted portion 181 is disposed on the side surface 3 a of the upright 3 on the slide 105 side.
  • the fitted portion 181 is a substantially serrated member provided on the side surface 3a of the upright 3 along the vertical direction, and has a concave portion 181a and a convex portion 181b on the slide 105 side.
  • the concave portions 181a and the convex portions 181b are alternately formed along the vertical direction.
  • it has the slide main body 105a and the metal mold
  • the upper mold 12a is mounted on the lower surface 105s (see FIG. 11) of the mold mounting plate 105b.
  • the hydraulic cylinder 81 is provided on the slide body 105a. Specifically, the hydraulic cylinder 81 is arranged on the side surface of the slide body 105a so that its piston rod 81c extends in the horizontal direction toward the upright 3 side.
  • the fitting portion 182 is attached to the tip of the piston rod 81 c of the hydraulic cylinder 81.
  • the tip shape of the fitting portion 182 is formed so as to correspond to the concave portion 181a.
  • the control unit 11 controls the holding hydraulic circuit 87 to extend the piston rod 81c from the cylinder tube 81a. Specifically, the direction switching valve 82 is switched so that the second connection path 84b and the third connection path 84c are connected and the first connection path 84a and the oil discharge path 84d are connected.
  • the pump 83 is operated in this state, the hydraulic oil is supplied to the second space 81e side, and the piston rod 81c extends to the fitted portion 181 side.
  • the fitting portion 182 moves toward the concave portion 181a of the fitted portion 181 and is fitted into the concave portion 181a. As a result, the position of the slide body 105a is fixed.
  • the fitting portion 182 is separated from the fitted portion 181, the direction is switched so that the first connection path 84 a and the third connection path 84 c are connected and the second connection path 84 b and the oil drainage path 84 d are connected.
  • the valve 82 is switched and the pump 83 is driven and controlled.
  • hydraulic oil is supplied to the first space 81d, the piston rod 81c is contracted, and the fitting portion 182 is separated from the fitted portion 181.
  • FIG. 11 is a diagram illustrating a configuration of the load applying unit 107 according to the present embodiment.
  • the load application unit 107 according to the present embodiment includes four hydraulic cylinders 171 provided in the slide 105 and four load hydraulic circuits 78 for driving the respective hydraulic cylinders 171.
  • the load hydraulic circuit 78 is the same as that of the first embodiment.
  • the hydraulic cylinder 171 includes a cylinder tube 171a arranged in the vertical direction, a piston 171b movable in the cylinder tube 171a in the vertical direction, and a piston rod 171c provided downward from the piston 171b. That is, the piston rod 171c extends downward from the cylinder tube 171a.
  • a die mounting plate 105b of the slide 105 is attached to the lower end of the piston rod 171c.
  • the piston 171b is not connected to the plunger 64 as compared with the first embodiment.
  • the slide main body 105a when a molding load is applied to the preform material 301 and the thermosetting resin, the slide main body 105a does not move, and the mold mounting plate 105b moves downward with a predetermined pressure, and the preform is moved. A molding load is applied to the material 301 and the thermosetting resin.
  • the space in the cylinder tube 171a is divided into a lower space 171d and an upper space 171e by the piston 171b.
  • the first connection path 76a of the load hydraulic circuit 78 is connected to the lower space 171d
  • the second connection path 76b of the load hydraulic circuit 78 is connected to the upper space 171e.
  • the direction switching valve 72 is switched so that the second connection path 76b and the third connection path 76c are connected and the first connection path 76a and the oil discharge path 76d are connected.
  • hydraulic oil is supplied to the upper space 171e, the piston 171b and the piston rod 171c are pushed downward, and a molding load is applied to the mold mounting plate 105b.
  • FIG. 12 is a flowchart showing a control method of the press apparatus 100 of the present embodiment.
  • the control unit 11 controls the direction switching valve 82 and the pump 83 of the holding hydraulic circuit 87 to drive the hydraulic cylinder 81 in step S120. That is, the piston rod 81c is extended from the cylinder tube 81a, and the fitting portion 182 is fitted into the concave portion 181a of the fitted portion 181. As a result, the position of the slide body 105a is fixed. Since the slide 105 is lowered using the servo motor 60, the slide 105 can be accurately stopped at a position where the fitting portion 182 faces the concave portion 181a.
  • step S ⁇ b> 130 the control unit 11 stops energizing the servo motor 60.
  • step S135 with the slide 5 stopped, the thermosetting resin is injected between the upper mold 12a and the lower mold 12b through the injection path 400.
  • step S140 the control unit 11 controls the direction switching valve 72, the flow rate adjustment valve 73, and the pressure control valve 74 of the load applying unit 107, and drives the four hydraulic cylinders 171 in the slide 5 to mold.
  • the mounting plate 105b is moved downward with a predetermined pressure.
  • a molding load is applied to the preform material 301 and the thermosetting resin between the upper mold 12a and the lower mold 12b, and the preform material 301 and the thermosetting resin are cured. Resin is pressurized between the upper mold 12a and the lower mold 12b. By this pressurization, the preform material 301 and the thermosetting resin are molded.
  • step S150 the pressurized state is maintained for a predetermined time.
  • the control unit 11 controls the pump 95 and the four sets of the first servo valve 93 and the second servo valve 94 of the inclination correction unit 9 based on information from the linear sensor 92.
  • the hydraulic cylinder 91 is driven to keep the slide 5 at a predetermined inclination or less.
  • the control unit 11 controls the direction switching valve 72, the flow rate adjustment valve 73, and the pressure control valve 74 of the load applying unit 107, and stops applying the load to the mold attachment plate 105b.
  • step S ⁇ b> 160 the control unit 11 energizes the servo motor 60.
  • step S170 the control unit 11 drives the hydraulic cylinder 81 by controlling the pump 83 and the direction switching valve 82 of the slide holding unit 108, thereby separating the fitting unit 182 from the recess 181a. Thereby, the fixation of the slide main body 105a is released.
  • step S180 the control unit 11 controls the servo motor 60 to raise the slide 105 to the original position. Then, the processed product after the press work is taken out, and the next press work is performed.
  • FIG. 13 is a front view showing the configuration of the press apparatus 200 of the present embodiment.
  • the press device 200 according to the present embodiment includes a bed 2, a crown 4, a slide 5, a slide driving unit 206, a load applying unit 207, a slide holding unit 208, an inclination correcting unit 9, a bolster 10, And a control unit 11.
  • the slide drive unit 206 includes four sets of a servo motor 260 and a transmission mechanism 266 that transmits the drive of the servo motor 260 to the slide 5.
  • Each transmission mechanism 266 includes a ball screw portion 261 and a support portion 262.
  • the four ball screw portions 261 are disposed on the bed 2 so as to be rotatable in the vertical direction, and are inserted through the four corners of the crown 4.
  • Bearings 263 are provided above and below the crown 4 and around the ball screw portion 261.
  • the upright 3 is not provided, and the crown 4 is supported by the slide drive unit 206.
  • the ball screw portion 261 has a screw shape 261a formed on the peripheral surface.
  • a support portion 262 for supporting the crown 4 by a ball screw portion 261 is fixed below the crown 4 and below the bearing 263.
  • the support portion 262 has a through hole 262a in the vertical direction, and a screw shape is formed on the inner peripheral surface of the through hole 262a, and is screwed with the screw shape 261a of the ball screw portion 261.
  • the servo motor 260 is disposed such that the drive shaft 260a faces the vertical direction.
  • the drive shaft 260a is coupled to the lower end of the ball screw portion 261.
  • the ball screw portion 261 is also rotated, and the support portion 262 and the crown 4 screwed with the ball screw portion 261 are moved in the vertical direction.
  • the crown 4 moves in the vertical direction by driving the servo motor 260, the slide 5 suspended from the crown 4 also moves in the vertical direction.
  • the slide 5 is lowered to a height that reaches the molding region by driving the servo motor 260.
  • the control unit 11 controls the servo motor 260.
  • FIG. 14A and 14B are diagrams showing the configuration of the slide holding unit 208.
  • FIG. The slide holding part 208 includes a fitted part 281 provided at the upper end of the ball screw part 261, a fitting part 282 fitted to the fitted part 281, and the fitting part 282 toward the fitted part 281. And a moving unit 86 that moves.
  • the fitted portion 281 has a cylindrical portion 281a provided coaxially with the ball screw portion 261 at the upper end of the ball screw portion 261, and an annular projection portion 281b formed with a certain interval in the vertical direction.
  • the annular protrusion 281b protrudes outward in the radial direction of the cylindrical portion 281a.
  • the annular projecting portion 281b is formed over one circumference of the cylindrical portion 281a.
  • the annular protrusion 281b is formed in parallel with the horizontal direction.
  • a recess 281c is formed between the annular protrusions 281b adjacent in the vertical direction.
  • FIG. 15 is a plan view of the fitting portion 282.
  • the fitting part 282 is a semi-annular member. Two fitting portions 282 are arranged so as to surround the periphery of the fitted portion 281. The two fitting portions 282 are arranged to face each other.
  • the fitting part 282 is fixed to the tip of the piston rod 81 c of the hydraulic cylinder 81 of the moving part 86.
  • the fitting portion 282 has an uneven shape inside, that is, the fitting portion 282 has two convex portions protruding toward the inner side in the radial direction of the ring.
  • a concave portion 282b is formed between the two convex portions 282a having 282a.
  • the moving unit 86 has the same configuration as that of the first embodiment, and includes a hydraulic cylinder 81 and a holding hydraulic circuit 87.
  • the moving part 86 is provided for each fitting part 282.
  • the hydraulic cylinder 81 is fixed to the crown 4 so that the piston rod 81c moves horizontally. Further, the piston rod 81c extends from the cylinder tube 81a toward the fitted portion 281. A fitting portion 282 is attached to the tip of the piston rod 81c.
  • the holding hydraulic circuit 87 is not shown.
  • the control unit 11 controls the holding hydraulic circuit 87 to extend the piston rod 81c from the cylinder tube 81a. Specifically, the direction switching valve 82 is switched so that the second connection path 84b and the third connection path 84c are connected and the first connection path 84a and the oil discharge path 84d are connected.
  • the pump 83 is operated in this state, the hydraulic oil is supplied to the second space 81e side, and the piston rod 81c extends to the fitted portion 181 side.
  • the two fitting portions 282 move so as to sandwich the fitted portion 281 and are fitted to the fitted portion 281.
  • the convex portion 282 a of the fitting portion 282 fits into the concave portion 281 c of the fitted portion 281, and the annular protrusion 281 b of the fitted portion 281 fits into the concave portion 282 b of the fitting portion 282.
  • the ball screw portion 261 is fixed by the slide holding portion 208. That is, the slide 5 can be mechanically held at the height of the molding region by lowering the slide 5 to the molding region and fixing the ball screw portion 261.
  • the fitting portion 182 is separated from the fitted portion 181, the direction is switched so that the first connection path 84 a and the third connection path 84 c are connected and the second connection path 84 b and the oil drainage path 84 d are connected.
  • the valve 82 is switched and the pump 83 is driven and controlled. As a result, hydraulic oil is supplied to the first space 81d, the piston rod 81c is contracted, and the fitting portion 182 is separated from the fitted portion 181.
  • FIG. 16 is a diagram illustrating a configuration of the load applying unit according to the present embodiment.
  • the load application unit 207 includes four hydraulic cylinders 271, a load hydraulic circuit 78 that drives each hydraulic cylinder 271, and a load transmission mechanism 272 that transmits the pressure of each hydraulic cylinder 271 to the slide 5.
  • Each hydraulic cylinder 271 has a cylinder tube 271a arranged in the horizontal direction, a piston 271b that can move in the cylinder tube 271a in the horizontal direction, and a piston rod 271c connected to the piston 271b.
  • the piston rod 271c extends from the cylinder tube 271a toward the inside of the press device 200.
  • the space in the cylinder tube 271a is divided into an inner space 271d and an outer space 271e by the piston 271b.
  • a first connection path 76a of the load hydraulic circuit 78 is connected to the inner space 271d, and a second connection path 76b of the load hydraulic circuit 78 is connected to the outer space 271e.
  • the control unit 11 connects the second connection path 76b and the third connection path 76c, and switches the direction switching valve 72 so as to connect the first connection path 76a and the oil discharge path 76d. Is supplied and hydraulic oil is discharged from the inner space 271d. As a result, the piston rod 271c extends inward.
  • control unit 11 operates in the inner space 271d by switching the direction switching valve 72 so as to connect the first connection path 76a and the third connection path 76c and connect the second connection path 76b and the oil discharge path 76d. Oil is supplied and hydraulic oil is discharged from the outer space 271e. Thereby, the piston rod 271c is drawn into the cylinder tube 271a.
  • the load transmission mechanism 272 converts the movement of the piston rod 271 c in the horizontal direction into the movement in the vertical direction and transmits it to the slide 5.
  • the load transmission mechanism 272 includes a plunger 64, a first connecting member 273, a second connecting member 278, and a third connecting member 274.
  • the first connecting member 273, the second connecting member 278, and the third connecting member 274 are elongated members.
  • the first connecting member 273 is rotatably connected to the tip 271f of the piston rod 271c via a pin 500 at one end thereof.
  • the first connecting member 273 is rotatably connected to one end of the second connecting member 278 at a first connecting portion 277a provided at the other end.
  • the second connecting member 278 connects between the first connecting member 273 and the plunger 64.
  • the second connecting member 278 is rotatably connected to the upper end portion 64a of the plunger 64 at a second connecting portion 277b provided at the other end.
  • the second connecting member 278 is configured by connecting a second A connecting member 275 and a second B connecting member 276.
  • the 2nd A connection member 275 is connected with the 1st connection member 273 and the 3rd connection member 274 in the 1st connection part 277a provided in the end.
  • the second A connecting member 275 is connected to the second B connecting member 276 at an intermediate connecting portion 277d provided at the other end.
  • the other end of the second B connecting member 276 is rotatably connected to the upper end portion of the plunger 64 at the second connecting portion 277b.
  • the third connecting member 274 connects the first connecting member 273 and the crown 4.
  • the third connecting member 274 is connected to the first connecting member 273 at a first connecting portion 277a provided at one end thereof.
  • the third connecting member 274 is rotatably connected to the crown 4 at a third connecting portion 277c provided at the other end.
  • the third connecting portion 277c is disposed vertically above the second connecting portion 277b. Moreover, the position in the vertical direction of the 1st connection part 277a is located between the 2nd connection part 277b and the 3rd connection part 277c.
  • FIGS. 17A and 17B are views for explaining the movement of the load transmission mechanism when the hydraulic cylinder 271 is driven.
  • the hydraulic oil flows into the outer space 271e.
  • the supplied piston 271b moves inward, and the piston rod 271c moves inward.
  • FIG. 17B is a view showing a state where the piston rod 271c is extended.
  • the first connecting member 273 By the movement of the piston rod 271c in the horizontal direction, the first connecting member 273 is pushed inward, and the first connecting portion 277a moves in the device inner direction.
  • the angle between the second A connecting member 275 and the third connecting member 274 is opened by the inward movement of the first connecting portion 277a.
  • the plunger 64 connected via the 2A connection member 275 and the 2B connection member 276 moves downward along the plunger holder 65.
  • the force that moves the piston rod 271c of the hydraulic cylinder 271 inward is transmitted to the slide 5 by the load transmission mechanism 272, and the upper mold 12a moves downward, so that the gap between the upper mold 12a and the lower mold 12b.
  • a molding load can be applied to the preform material 301 and the thermosetting resin.
  • the direction switching valve 72 is controlled to drive the pump 75 so that the first connection path 76a and the third connection path 76c are connected and the second connection path 76b and the oil discharge path 76d are connected, the inner space 271d is activated. Oil is supplied, the piston 271b moves outward, and the piston rod 271c is drawn into the cylinder tube 271a.
  • the first connecting member 273, the second connecting member 278, and the third connecting member 274 described above constitute a so-called toggle link mechanism. Since the toggle link mechanism is a booster mechanism, the force generated in the hydraulic cylinder 271 is amplified and transmitted to the slide 5. Therefore, a small hydraulic cylinder 271 can be used, and the amount of hydraulic oil to be used is also reduced.
  • FIG. 16 only the load hydraulic circuit 78 of one hydraulic cylinder 271 is shown, but the load hydraulic circuit 78 is provided in each of the four hydraulic cylinders 271. Further, a part of the load hydraulic circuit 78, the pump 75, the hydraulic oil tank 77, and the like may be used in common for the four load hydraulic circuits 78.
  • FIG. 18 is a flowchart showing a control method of the press apparatus 200 of the present embodiment.
  • the control unit 11 controls the direction switching valve 82 and the pump 83 of the holding hydraulic circuit 87 to drive the hydraulic cylinder 81 in step S220. That is, the piston rod 81c is extended from the cylinder tube 81a, and the fitting portion 282 is fitted to the fitted portion 281. As a result, the position of the crown 4 is fixed. Since the crown 4 and the slide 5 are lowered using the servo motor 260, the crown 4 and the slide 105 are accurately positioned so that the convex portion 282a of the fitting portion 282 is located at a position corresponding to the concave portion 281c of the fitted portion 281. Can be stopped.
  • step 230 the control unit 11 stops energization of the servo motor 260.
  • step S235 with the slide 5 stopped, the thermosetting resin is injected between the upper mold 12a and the lower mold 12b through the injection path 400.
  • step S240 the control unit 11 controls the load hydraulic circuit 78 of the load applying unit 207 to drive the four hydraulic cylinders 271 in the crown 5 to move the slide 5 downward at a predetermined pressure. .
  • step S250 the pressurized state is maintained for a predetermined time.
  • the control unit 11 drives the hydraulic cylinder 91 by controlling the pump 95 and the four sets of the first servo valve 93 and the second servo valve 94 of the tilt correction unit 9, and the slide 5 Is kept at a predetermined slope or less.
  • the control unit 11 controls the load hydraulic circuit 78 of the load applying unit 207 to stop applying the load to the slide 5.
  • step S260 the control unit 11 energizes the servo motor 260.
  • step S ⁇ b> 270 the control unit 11 drives the hydraulic cylinder 81 by controlling the holding hydraulic circuit 87 of the slide holding unit 208 to separate the fitting unit 282 from the fitted unit 281. As a result, the crown 4 and the slide 5 are fixed.
  • step S280 the control unit 11 controls the servo motor 260 to raise the slide 5 and the crown 4 to their original positions. Then, the processed product after the press work is taken out, and the next press work is performed.
  • the press apparatuses 1, 100, and 200 are press apparatuses that perform press molding on a preform material 301 and a thermosetting resin (an example of a material) using an upper mold 12a and a lower mold 12b. And slides 5 and 105, slide drive units 6 and 206 (an example of a drive unit), load applying units 7, 107 and 207, slide holding units 8, 108 and 208 (an example of a holding unit), and control Part 11.
  • the upper mold 12a is attached to the lower surfaces 5s and 105s.
  • the slide drive unit 6 includes servomotors 60 and 260 (an example of an electric motor) and transmission mechanisms 66 and 266 (an example of a first transmission mechanism), and moves the slides 5 and 105 up and down.
  • the transmission mechanisms 66 and 266 transmit the drive of the servo motors 60 and 260 to the slides 5 and 105.
  • the load applying portions 7, 107, and 207 can apply a molding load to the preform material 301 and the thermosetting resin by moving the upper mold 12a downward at a predetermined pressure by hydraulic pressure.
  • the slide holding portions 8, 108, 208 mechanically hold the slides 5, 105 so as to receive the reaction force of the molding load.
  • the control unit 11 moves the slide 5 to the forming region (an example of a predetermined height) by the slide driving units 6 and 206, holds the slide 5 by the slide holding units 8, 108, and 208, and then loads the load applying unit 7,
  • the upper mold 12a is moved downward at a predetermined pressure by 107 and 207, and a molding load is applied to the preform material 301 and the thermosetting resin between the upper mold 12a and the lower mold 12b.
  • the slide drive units 6 and 206 using the servomotors 60 and 260 and the load applying units 7, 107 and 207 using hydraulic pressure are provided.
  • the slides 5 and 105 are moved downward by the servo motors 60 and 260 up to the forming region, and press forming can be performed by applying a forming load using hydraulic pressure from the height. Therefore, the time required for the strokes of the slides 5 and 105 can be shortened compared to the case where the slides 5 and 105 are moved by hydraulic pressure until reaching the forming region, and the time required for press forming can be reduced.
  • the servo motor 60 is used.
  • 260 is used to move the slide to the forming region, thereby saving energy.
  • the slide holding portions 8, 108 and 208 for holding the slides 5 and 105 are provided, the slides 5 and 105 can be held against the reaction force of the molding load, and processing can be performed with high accuracy.
  • the servo motors 60 and 260 can be stopped in a state where the slides 5 and 105 are held by the slide holding units 8, 108 and 208, the servo motors 60 and 260 can be stopped as necessary to stop the servo motors 60 and 260.
  • the load applied to 60 and 260 can be reduced.
  • the control unit 11 stops driving the servo motors 60 and 260 after holding the slides 5 and 105 by the slide holding units 8, 108, and 208.
  • the servo motors 60 and 260 can be stopped in this way, so that the load on the servo motors 60 and 260 can be reduced.
  • the slide holding portions 8 and 208 mechanically hold the slide 5 so as to receive the reaction force of the molding load by mechanically fixing the transmission mechanisms 66 and 266. To do.
  • the slide 5 can be held against the reaction force of the molding load, and processing can be performed with high accuracy. Further, in a state where the slide 5 is held by the slide holding portions 8 and 208, the servo motors 60 and 260 can be stopped, so that the burden on the servo motors 60 and 260 can be reduced.
  • the transmission mechanism 66 has a helical gear 62a (an example of a gear).
  • the slide holding unit 8 includes a fitting unit 80 and a moving unit 86.
  • the fitting part 80 can be fitted between the teeth 621 of the helical gear 62a.
  • the moving part 86 moves the fitting part 80 to a position between the teeth 621 of the helical gear 62a.
  • the load application unit 7 applies a molding load to the preform material 301 and the thermosetting resin by moving the slide 5 downward.
  • the slide holding unit 8 receives the reaction force of the molding load by controlling the moving unit 86 and moving the fitting unit 80 between the teeth 621 of the helical gear 62a to mechanically fix the transmission mechanism 66.
  • the slide 5 is mechanically held.
  • the slide 105 includes a slide main body 105a and a mold attachment plate 105b (an example of a mold attachment portion).
  • the mold attachment plate 105b is disposed on the lower side of the slide main body 105a, and the upper mold 12a is attached thereto.
  • the load application unit 107 applies a molding load to the preform material 301 and the thermosetting resin by moving the mold attachment plate 105b downward.
  • the slide holding unit 108 mechanically holds the slide 105 so as to receive the reaction force of the molding load by mechanically fixing the slide main body 105a.
  • the molding load can be received by fixing the slide body 105a to a predetermined height and applying the molding load by the mold mounting plate 105b.
  • the press apparatus 100 further includes a crown 4 and an upright 3.
  • the crown 4 is disposed above the slide 105 and supports the slide 105 so as to be movable.
  • the upright 3 supports the crown 4 above the slide 105.
  • the slide holding part 108 has a fitting part 182, a fitted part 181, and a moving part 86.
  • the fitting portion 182 is provided on the slide main body 105 a and is movable toward the upright 3.
  • the fitted portion 181 is provided on the side surface 3 a of the upright 3 on the slide 105 side.
  • the moving part 86 moves the fitting part 182 to fit the fitted part 181.
  • the slide holding unit 108 mechanically holds the slide 105 so as to receive the reaction force of the molding load by controlling the moving unit 86 and fitting the fitting unit 182 to the fitted unit 181.
  • the slide body 105a using the upright 3, it is possible to receive the molding load applied by the mold mounting plate 105b.
  • the press apparatus 200 includes a crown 4.
  • the crown 4 is disposed above the slide 5 and supports the slide 5 so as to be movable.
  • the transmission mechanism 266 includes a ball screw part 261 and a support part 262.
  • the ball screw portion 261 is arranged in the vertical direction and supports the crown 4 above the slide 5.
  • the support portion 262 is screwed with the ball screw portion 261.
  • the ball screw portion 261 rotates by driving the servo motor 260.
  • the slide drive unit 206 lowers the slide 5 to a predetermined height by rotating the ball screw part 261 and moving the crown 4 downward. Thereby, the slide 5 can be lowered to a predetermined height by using the driving force of the servo motor 260.
  • the slide holding unit 208 includes a fitted portion 281, a fitting portion 282, and a moving portion 86.
  • the fitted part 281 is fixed to the ball screw part 261.
  • the fitting portion 282 can be fitted to the fitted portion 281.
  • the moving part 86 moves the fitting part 282 to fit the fitted part 281.
  • the slide holding portion 208 controls the moving portion 86 to fit the fitting portion 282 to the fitted portion 281, thereby fixing the ball screw portion 261 and mechanically moving the slide 5 to receive the reaction force of the molding load. Hold on.
  • the reaction force of the molding load can be received.
  • the load applying portions 7 and 107 have hydraulic cylinders 71 and 171 disposed on the slides 5 and 105, and the preform material 301 is generated by the hydraulic pressure of the hydraulic cylinders 71 and 171.
  • a molding load is applied to the thermosetting resin.
  • the press apparatus 200 further includes a crown 4.
  • the crown 4 is disposed above the slide 5 and supports the slide 5 so as to be movable up and down.
  • the load applying unit 207 includes a hydraulic cylinder 271 and a load transmission mechanism 272 (an example of a second transmission mechanism).
  • the hydraulic cylinder 271 has a piston rod 271 c that can move in the horizontal direction, and is disposed on the crown 4.
  • the load transmission mechanism 272 has a booster mechanism that amplifies the force of the hydraulic cylinder 271 and transmits it to the slide.
  • the load transmission mechanism 272 converts the movement of the piston rod 271 c in the horizontal direction into the movement in the vertical direction and transmits it to the slide 5.
  • the hydraulic cylinder 271 can be arranged so that the piston rod 271c is in the horizontal direction. For this reason, the height of a press apparatus can be made lower than arrange
  • the load transmission mechanism 272 has a plunger 64 that is fixed to the upper side of the slide 5 and guided in the vertical direction.
  • the booster mechanism includes a first connecting member 273 (an example of a first member), a second connecting member 278 (an example of a second member), and a third connecting member 274 (an example of a third member).
  • the first connecting member 273 is rotatably connected to the piston rod 271c.
  • the second connecting member 278 connects the first connecting member 273 and the plunger 64 disposed on the upper side of the slide 5.
  • the third connecting member 274 connects between the first connecting member 273 and the crown 4.
  • the second connecting member 278 is rotatable with respect to each of the first connecting member 273 and the upper end portion of the plunger 64.
  • the third connecting member 274 is rotatable with respect to each of the first connecting member 273 and the crown 4.
  • the third connecting member 274 is connected to the first connecting member 273 at the connecting portion between the first connecting member 273 and the second connecting member 278.
  • the connecting portion between the first connecting member 273 and the second connecting member 278 and the connecting portion between the first connecting member 273 and the third connecting member 274 are made the same first connecting portion 277a, thereby saving space. Can be realized.
  • the press apparatuses 1, 100, and 200 according to the present embodiment further include an inclination correction unit 9.
  • the inclination correction unit 9 corrects the inclination of the slides 5 and 105 so that the upper mold 12a is kept horizontal.
  • the control unit 11 corrects the inclination of the slides 5 and 105 by the inclination correction unit 9 when applying the molding load to the preform material 301 and the thermosetting resin by the load application units 7, 107, and 207.
  • the load may be biased depending on the shape of the workpiece formed on the mold, and the upper mold 12a may be inclined.
  • the inclination correction unit 9 the inclination of the upper mold 12a can be reduced, and the processing accuracy can be improved.
  • the inclination correction unit 9 includes a plurality of hydraulic cylinders 91, pumps 95, and first servo valves 93 and second servo valves 94 (an example of valves) provided for each hydraulic cylinder 91. And).
  • the pump 95 supplies hydraulic oil to the plurality of hydraulic cylinders 91.
  • the first servo valve 93 and the second servo valve 94 are provided for each hydraulic cylinder 91 and adjust the amount of hydraulic oil supplied to the hydraulic cylinder 91.
  • the piston rod 91c of the hydraulic cylinder 91 contacts the slides 5 and 105 from below when a molding load is applied.
  • the control unit 11 controls the first servo valve 93 and the second servo valve 94 so that the strokes of the piston rods 91c of the plurality of hydraulic cylinders 91 have the same length when the molding load is applied by the load applying unit 7. To do. Thereby, when pressing a liquid or soft soft material such as CFRP, the inclination of the upper mold 12a can be reduced.
  • the control method of the press apparatus of the said embodiment is the control method of press apparatus 1,100,200 which press-forms with respect to the preform material 301 and a thermosetting resin using the upper metal mold
  • Steps S10, 110, and 210 an example of a moving process
  • Steps S20, 120, and 220 an example of a holding process
  • Steps S50, S150, and S250 an example of a load applying process
  • the drive of the servo motors 60 and 260 is transmitted to the slides 5 and 105 to which the upper mold 12a is attached to move the slides 5 and 105 to the height of the molding region.
  • Steps S20, 120, and 220 mechanically hold the slides 5 and 105 so as to receive the reaction force of the molding load.
  • steps S50, S150, and S250 the upper mold 12a is moved downward by hydraulic pressure from the height of the molding region, and a molding load is applied to the preform material 301 and the thermosetting resin.
  • the slide can be moved downward by the servo motors 60 and 260 up to the forming region, and press forming can be performed by applying a forming load using hydraulic pressure from the height. Therefore, the time required for the strokes of the slides 5 and 105 can be shortened, and the time required for press molding can be shortened. Furthermore, since the slides 5 and 105 can be held so as to receive the reaction force of the forming load, the processing can be performed with high accuracy.
  • the forming method of the press apparatuses 1, 100, and 200 of the above embodiment further includes steps S30, S130, and S230 (an example of a stop process). Steps S30, S130, and S230 stop driving the servomotors 60 and 260 after steps S20, 120, and 220.
  • the servo motors 60 and 260 can be stopped, so that the burden on the servo motors 60 and 260 can be reduced.
  • FIG. 19 is a schematic diagram showing the configuration of the press apparatus 1 ′.
  • the injection path 400 for injecting the thermosetting resin into the upper mold 12a ′ is not formed.
  • FIG. 20 is a flowchart showing a control method of the press apparatus 1 ′ shown in FIG.
  • a thermoplastic resin is used, and as the thermoplastic resin, polyamide, polypropylene, or the like is used.
  • a stampable sheet 300 in which a carbon fiber sheet is laminated with a prepreg impregnated with a thermoplastic resin is used.
  • the heated stampable sheet 300 is placed on the lower mold 12b ′, and the slide 5 is lowered (step S10).
  • the servo motor 60 is stopped (steps S20 and S30).
  • a molding load is applied to the slide 5 by the load applying unit 7, and pressure molding is performed between the upper mold 10a 'and the lower mold 10b' (step S40). Subsequent control is the same as in the above embodiment.
  • the press devices 100 and 200 may also be used for the SS method.
  • the CFRP using continuous carbon fiber is described as an example of the material.
  • the present invention is not limited to this.
  • the press devices 1, 100, 200, 1 ′ of the above embodiment and (A) may be used, and the present invention is not limited to CFRP. That is, the press devices 1, 100, 200, 1 ′ may be used when molding a resin that does not contain carbon fibers.
  • the press apparatus described in the above embodiment may be used for sheet metal processing or the like, it is more effective when a soft soft material or a liquid material is pressed.
  • the servo motors 60 and 260 are used as an example of the electric motor.
  • the present invention is not limited to the servo motor, and for example, an inverter motor may be used.
  • the slides 5 and 105 are lowered by driving the servo motors 60 and 260 until reaching the forming region, and after reaching the forming region, forming is performed by hydraulic pressure.
  • the position where the slides 5 and 105 are lowered may be a position above the molding region, and the slides 5 and 105 may be lowered from the position by hydraulic pressure. Even in such a case, the time required for the reciprocation of the slide can be shortened as compared with the case where all the strokes of the slide are hydraulically performed, so that the effect of the present invention can be exhibited.
  • the contact portion 90 of the inclination correcting unit 9 is in contact with the lower surfaces 5s and 105s of the slides 5 and 105 at a height reaching the forming region, but the contact portion 90 is reached before reaching the forming region. May contact the slides 5 and 105.
  • the servo motor 260 is arranged coaxially with the ball screw portion 261, and the drive shaft 260a of the servo motor 260 and the ball screw portion 261 are directly connected.
  • the present invention is not limited to this.
  • the servo motor 260 may be disposed in parallel with the ball screw portion 261, and the rotation of the drive shaft 260a may be transmitted to the ball screw portion 261 by being decelerated by a gear or the like.
  • the number of servo motors 60 and 260, transmission mechanisms 66 and 266, and hydraulic cylinders 71, 81, 171, and 271 are not limited to the above-described embodiment, and can be changed as appropriate.
  • the 2nd connection member 278 is comprised by connecting two members, the 2A connection member 275 and the 2B connection member 276, it may be comprised only by one member. Good.
  • connection part and the connection part of the 1st connection member 273 and the 3rd connection member 274 may be provided separately.
  • a triaxial link member may be disposed as the first connecting member 273 ′.
  • first connecting member 273 ′ and the second connecting member 278 are connected by the first A connecting portion 277e, and the first connecting member 273 ′ and the third connecting member 274 are They are connected by the first B connecting member 277f.
  • toggle link mechanism was used as a boost mechanism, it is not restricted to a toggle link.
  • the press device and the control method of the press device of the present invention have an effect of reducing the time required for press work, and are useful when, for example, CFRP press work is performed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)

Abstract

A press device (1) is provided with a slide (5), a slide drive unit (6), a load-applying unit (7), a slide-holding section (8), and a control unit (11). The slide drive unit (6) comprises a servomotor (60) and a transmission mechanism (66) for transmitting the driving force of the servomotor (60) to the slide (5). The load-applying unit (7) makes it possible to use hydraulic pressure to move an upper die (12a) downward and apply a molding load to a preform material (301) and a thermosetting resin at a predetermined pressure. The slide-holding section (8) mechanically holds the slide (5) so as to receive the reactive force of the molding load. The slide (5) is moved to a molding area by the slide drive unit (6), the slide (5) is held by the slide-holding unit (8), and the control unit (11) subsequently uses the load-applying unit (7) to move the upper die (12a) downward and apply a molding load to the preform (301) and the thermosetting resin at a predetermined pressure between the upper die (12a) and a lower die (12b).

Description

プレス装置およびプレス装置の制御方法Press device and control method of press device
　本発明は、プレス装置、およびプレス装置の制御装置に関する。 The present invention relates to a press device and a control device for the press device.
　近年、軽量で強度に優れる炭素繊維強化プラスチック（以下ＣＦＲＰ（carbon fiber reinforced plastic）と記載する）が、スポーツ、産業用途などにおいて注目されている。産業用途としては、例えば、自動車の外装および内装のパネルなどをＣＦＲＰで形成することが注目されており、ＣＦＲＰで形成した車体を用いることにより、車体の軽量化を図ることが出来る。 In recent years, carbon fiber reinforced plastic (hereinafter referred to as CFRP (carbon fiber reinforced plastic)) that is lightweight and excellent in strength has attracted attention in sports and industrial applications. As industrial applications, for example, it has been noticed that the exterior and interior panels of automobiles are formed of CFRP, and the use of a vehicle body formed of CFRP can reduce the weight of the vehicle body.
　ＣＦＲＰは、炭素繊維が樹脂に混ぜ込まれたものである。樹脂としては、大きく分けて熱硬化性樹脂と熱可塑性樹脂が用いられ、炭素繊維としては、連続繊維と不連続繊維が用いられる。
　ＣＦＲＰを加工する際には、ＲＴＭ（Resin Transfer Molding）工法、ＳＭＣ（Sheet Molding Compound）工法、およびＳＳ（Stampable Sheet）工法などが用いられる。 CFRP is a mixture of carbon fiber and resin. As the resin, a thermosetting resin and a thermoplastic resin are roughly used, and as the carbon fiber, a continuous fiber and a discontinuous fiber are used.
When processing CFRP, an RTM (Resin Transfer Molding) method, an SMC (Sheet Molding Compound) method, an SS (Stampable Sheet) method, or the like is used.
　例えば、ＲＴＭ工法では、炭素繊維で形作られた中間基材（プリフォーム材）を金型内にセットし、樹脂を注入しながら加圧成形が行われる。また、ＳＳ工法では、炭素繊維に予め樹脂を含浸させたシートを加熱しプレスにより加圧成形が行われる。
　これらの樹脂をプレス成形する際には、金型に対して成形荷重を所定時間付与し続けなければならないため油圧を用いてプレス成形が行われている。このため、油圧シリンダによってスライドを上下方向に移動させてプレス加工を行うプレス装置が用いられる（例えば、特許文献１参照。）。 For example, in the RTM method, an intermediate base material (preform material) formed of carbon fiber is set in a mold, and pressure molding is performed while injecting resin. In the SS method, a sheet in which carbon fiber is impregnated with a resin is heated and press-molded by a press.
When press molding these resins, press molding is performed using hydraulic pressure because a molding load must be continuously applied to the mold for a predetermined time. For this reason, the press apparatus which performs a press work by moving a slide to an up-down direction with a hydraulic cylinder is used (for example, refer patent document 1).
特開２００４－３０６０４５号公報JP 2004-306045 A
　しかしながら、上記従来のプレス装置では、油圧によってスライドを上下方向に移動させるためスライドの移動に時間がかかり、一回のプレス加工にかかる時間が長くなっている。
　本発明は、上記従来のプレス装置の課題を考慮して、プレス加工に要する時間を短縮可能なプレス装置およびプレス装置の制御方法を提供することを目的とする。
（課題を解決するための手段）
　第１の発明に係るプレス装置は、上金型と下金型を用いてプレス成形を行うプレス装置であって、スライドと、駆動部と、荷重付与部と、保持部と、制御部と、を備えている。スライドは、下面に上金型が取り付けられる。駆動部は、電動モータと、第１伝達機構と、を有し、スライドを昇降させる。第１伝達機構は、電動モータの駆動をスライドに伝達する。荷重付与部は、油圧によって上金型を下向きに移動して材料に成形荷重を付与する。保持部は、成形荷重の反力を受け止めるようにスライドを機械的に保持する。制御部は、駆動部によりスライドを所定の高さまで移動して保持部によりスライドを保持した後に、荷重付与部により材料に成形荷重を付与する制御を行う。 However, in the conventional press apparatus, since the slide is moved in the vertical direction by hydraulic pressure, it takes time to move the slide, and the time required for one press work is long.
An object of the present invention is to provide a press device and a control method for the press device that can reduce the time required for press working in consideration of the problems of the conventional press device.
(Means for solving the problem)
A press device according to a first invention is a press device that performs press molding using an upper mold and a lower mold, and includes a slide, a drive unit, a load applying unit, a holding unit, a control unit, It has. The upper mold is attached to the lower surface of the slide. A drive part has an electric motor and a 1st transmission mechanism, and raises / lowers a slide. The first transmission mechanism transmits the drive of the electric motor to the slide. The load applying unit moves the upper mold downward by hydraulic pressure to apply a molding load to the material. The holding portion mechanically holds the slide so as to receive the reaction force of the forming load. The control unit performs control to apply a molding load to the material by the load applying unit after the slide is moved to a predetermined height by the driving unit and the slide is held by the holding unit.
　このように、電動モータを用いた駆動部と、油圧を用いた荷重付与部が設けられている。
　これにより、所定の高さまでは電動モータによってスライドを下方に移動させ、その高さから油圧を用いて上金型を下方に移動させることにより、材料に成形荷重を付与してプレス成形を行うことが出来る。そのため、所定の高さまでのスライドの移動を油圧で行う場合と比較してスライドのストロークに要する時間が短くでき、プレス成形にかかる時間を短縮できる。 Thus, the drive part using an electric motor and the load provision part using hydraulic pressure are provided.
Thereby, the slide is moved downward by an electric motor at a predetermined height, and the upper mold is moved downward from the height using hydraulic pressure, thereby applying a molding load to the material and performing press molding. I can do it. Therefore, the time required for the slide stroke can be shortened compared to the case where the slide is moved to a predetermined height by hydraulic pressure, and the time required for press molding can be shortened.
　更に、スライドを保持する保持部が設けられているため、成形荷重の反力に対してもスライドを保持でき、精度良く加工を行うことができる。
　また、保持部によってスライドを保持している状態では、電動モータを停止可能なため、必要に応じて電動モータを停止することによって電動モータにかかる負荷を軽減できる。
　なお、所定の高さは、例えば成形領域であり、成形荷重を付与することによって上金型および下金型によってプレス成形が行われる領域のことである。 Furthermore, since the holding part which hold | maintains a slide is provided, a slide can be hold | maintained also with respect to the reaction force of a shaping | molding load, and it can process accurately.
Further, since the electric motor can be stopped in a state where the slide is held by the holding unit, the load applied to the electric motor can be reduced by stopping the electric motor as necessary.
The predetermined height is, for example, a molding region, which is a region where press molding is performed by the upper mold and the lower mold by applying a molding load.
　第２の発明に係るプレス装置は、第１の発明に係るプレス装置であって、制御部は、保持部によりスライドを保持した後に、電動モータの駆動を停止する。
　保持部によってスライドを保持している状態では、このように電動モータを停止できるため、電度モータにかかる負荷を減少できる。 The press device according to the second invention is the press device according to the first invention, and the control unit stops driving the electric motor after holding the slide by the holding unit.
In the state where the slide is held by the holding unit, the electric motor can be stopped in this way, and therefore the load on the electric motor can be reduced.
　第３の発明に係るプレス装置は、第１の発明に係るプレス装置であって、保持部は、第１伝達機構を機械的に固定することによって、成形荷重の反力を受け止めるようにスライドを機械的に保持する。
　成形荷重の反力に対してもスライドを保持でき、精度良く加工を行うことができる。また、保持部によってスライドを保持している状態では、電動モータを停止できるため、電度モータにかかる負担を減少できる。 A press device according to a third invention is the press device according to the first invention, wherein the holding portion mechanically fixes the first transmission mechanism to slide the slide so as to receive the reaction force of the molding load. Hold mechanically.
The slide can be held against the reaction force of the forming load, and processing can be performed with high accuracy. Further, since the electric motor can be stopped in a state where the slide is held by the holding portion, the burden on the electric motor can be reduced.
　第４の発明に係るプレス装置は、第３の発明に係るプレス装置であって、第１伝達機構は、ギヤを有する。保持部は、嵌合部と、移動部と、を有する。嵌合部は、ギヤの歯の間に嵌合可能である。移動部は、ギヤの歯の間の位置に嵌合部を移動させる。荷重付与部は、スライドを下方に移動することにより、材料に成形荷重を付与する。保持部は、嵌合部をギヤの歯の間に移動させて第１伝達機構を機械的に固定することによって、成形荷重の反力を受け止めるようにスライドを機械的に保持する。
　このように第１伝達機構のギヤの歯の間に嵌合部を移動することによって、成形荷重を受け止めることができる。 A press device according to a fourth invention is the press device according to the third invention, wherein the first transmission mechanism has a gear. The holding part has a fitting part and a moving part. The fitting portion can be fitted between the gear teeth. The moving unit moves the fitting unit to a position between the gear teeth. The load applying unit applies a forming load to the material by moving the slide downward. The holding portion mechanically holds the slide so as to receive the reaction force of the molding load by moving the fitting portion between the gear teeth and mechanically fixing the first transmission mechanism.
In this manner, the molding load can be received by moving the fitting portion between the gear teeth of the first transmission mechanism.
　第５の発明に係るプレス装置は、第３の発明に係るプレス装置であって、スライドは、スライド本体と、スライド本体の下側に配置され上金型が取り付けられる金型取付部と、を有する。荷重付与部は、金型取付部を下方に移動することにより、材料に成形荷重を付与する。保持部は、スライド本体を機械的に固定することによって、成形荷重の反力を受け止めるようにスライドを機械的に保持する。
　このように、スライド本体を所定の高さに固定し、金型取付部によって材料に成形荷重を付与することによって、成形荷重を受け止めることができる。 A press device according to a fifth invention is the press device according to the third invention, wherein the slide includes a slide main body, and a die mounting portion that is disposed on the lower side of the slide main body and to which the upper die is attached. Have. The load application unit applies a molding load to the material by moving the mold attachment unit downward. The holding unit mechanically holds the slide so as to receive the reaction force of the molding load by mechanically fixing the slide body.
As described above, the molding load can be received by fixing the slide body at a predetermined height and applying the molding load to the material by the mold mounting portion.
　第６の発明に係るプレス装置は、第５の発明に係るプレス装置であって、クラウンと、アプライトを更に備える。クラウンは、スライドの上方に配置されスライドを移動可能に支持する。アプライトは、クラウンをスライドの上方に支持する。保持部は、嵌合部と、被嵌合部と、移動部と、を有する。嵌合部は、スライド本体に設けられアプライトに向かって移動可能である。被嵌合部は、アプライトのスライド側の側面に設けられている。移動部は、嵌合部を移動させて被嵌合部に嵌合させる。保持部は、嵌合部を被嵌合部に嵌合させることによって、成形荷重の反力を受け止めるようにスライドを機械的に保持する。
　このように、アプライトを利用してスライド本体を固定することによって、金型取付板により材料に付与する成形荷重を受け止めることが出来る。 A press device according to a sixth invention is the press device according to the fifth invention, further comprising a crown and an upright. The crown is disposed above the slide and movably supports the slide. The upright supports the crown above the slide. The holding part includes a fitting part, a fitted part, and a moving part. The fitting portion is provided on the slide body and is movable toward the upright. The fitted portion is provided on the side surface of the upright on the slide side. The moving part moves the fitting part to fit the fitted part. The holding part mechanically holds the slide so as to receive the reaction force of the molding load by fitting the fitting part to the fitted part.
Thus, by fixing the slide body using upright, it is possible to receive the molding load applied to the material by the mold mounting plate.
　第７の発明に係るプレス装置は、第３の発明に係るプレス装置であって、クラウンを備えている。クラウンは、スライドの上方に配置され、スライドを移動可能に支持する。第１伝達機構は、ボールネジ部と、支持部とを有する。ボールネジ部は、鉛直方向に配置され、クラウンをスライドの上方に支持する。支持部は、クラウンに固定され、ボールネジ部と螺合する。ボールネジ部は、電動モータの駆動によって回転する。駆動部は、ボールネジ部を回転させて支持部とともにクラウンを下方に移動させることによってスライドを所定の高さまで下降させる。
　これによって、電動モータの駆動力を用いてスライドを所定の高さまで下降できる。 A press device according to a seventh invention is the press device according to the third invention, and includes a crown. The crown is disposed above the slide and movably supports the slide. The first transmission mechanism has a ball screw part and a support part. The ball screw portion is arranged in the vertical direction and supports the crown above the slide. The support portion is fixed to the crown and screwed with the ball screw portion. The ball screw portion is rotated by driving the electric motor. The drive unit lowers the slide to a predetermined height by rotating the ball screw unit and moving the crown downward together with the support unit.
Accordingly, the slide can be lowered to a predetermined height using the driving force of the electric motor.
　第８の発明に係るプレス装置は、第７の発明に係るプレス装置であって、保持部は、被嵌合部と、嵌合部と、移動部と、を有する。被嵌合部は、ボールネジ部に固定されている。嵌合部は、被嵌合部に嵌合可能である。移動部は、嵌合部を移動させて被嵌合部に嵌合させる。保持部は、嵌合部を被嵌合部に嵌合させることによって、成形荷重の反力を受け止めるようにスライドの位置を保持する。
　このように、ボールネジ部を保持部によって固定することによって、成形荷重の反力を受け止めることができる。 A press device according to an eighth invention is the press device according to the seventh invention, wherein the holding part has a fitted part, a fitting part, and a moving part. The fitted portion is fixed to the ball screw portion. The fitting portion can be fitted to the fitted portion. The moving part moves the fitting part to fit the fitted part. The holding part holds the position of the slide so as to receive the reaction force of the molding load by fitting the fitting part to the fitted part.
In this way, the reaction force of the molding load can be received by fixing the ball screw portion with the holding portion.
　第９の発明に係るプレス装置は、第１の発明に係るプレス装置であって、荷重付与部は、スライドに配置された油圧シリンダを有し、油圧シリンダの油圧によって、材料に成形荷重を付与する。
　このようにスライドに成形荷重を付与する油圧シリンダを設けることによって、上金型を所定の作動圧で下方に向かって移動し材料に成形荷重を付与できる。 A press device according to a ninth invention is the press device according to the first invention, wherein the load applying portion has a hydraulic cylinder disposed on the slide, and a forming load is applied to the material by the hydraulic pressure of the hydraulic cylinder. To do.
By providing the hydraulic cylinder for applying a molding load to the slide in this manner, the molding die can be applied to the material by moving the upper mold downward with a predetermined operating pressure.
　第１０の発明に係るプレス装置は、第１の発明に係るプレス装置であって、クラウンを更に備えている。クラウンは、スライドの上方に配置されスライドを昇降可能に支持する。荷重付与部は、油圧シリンダと、第２伝達機構と、を有する。油圧シリンダは、水平方向に移動可能なピストンロッドを持ち、クラウンに配置されている。第２伝達機構は、油圧シリンダの力を増幅してスライドに伝達する倍力機構を持つ。第２伝達機構は、ピストンロッドの水平方向の移動を上下方向の移動に変換してスライドに伝達する。 A press device according to a tenth aspect of the present invention is the press device according to the first aspect of the present invention, further comprising a crown. The crown is disposed above the slide and supports the slide so as to be movable up and down. The load application unit includes a hydraulic cylinder and a second transmission mechanism. The hydraulic cylinder has a piston rod that can move in the horizontal direction, and is disposed on the crown. The second transmission mechanism has a booster mechanism that amplifies the force of the hydraulic cylinder and transmits it to the slide. The second transmission mechanism converts the horizontal movement of the piston rod into a vertical movement and transmits the movement to the slide.
　第２伝達機構が設けられているためピストンロッドが水平方向になるように油圧シリンダを配置できる。このため、鉛直方向になるように油圧シリンダを配置するよりも、プレス装置の高さを低くできる。
　また、第２伝達機構が倍力機構を有しているため、油圧シリンダを小型化でき、使用する作動油の量も減らすことができる。 Since the second transmission mechanism is provided, the hydraulic cylinder can be arranged so that the piston rod is in the horizontal direction. For this reason, the height of a press apparatus can be made low rather than arrange | positioning a hydraulic cylinder so that it may become a perpendicular direction.
Further, since the second transmission mechanism has a booster mechanism, the hydraulic cylinder can be reduced in size, and the amount of hydraulic oil to be used can be reduced.
　第１１の発明に係るプレス装置は、第１０の発明に係るプレス装置であって、第２伝達機構は、スライドの上側に固定され上下方向にガイドされるプランジャを有する。倍力機構は、第１部材と、第２部材と、第３部材と、を有する。第１部材は、ピストンロッドに対して回動可能に連結されている。第２部材は、第１部材とプランジャの間を連結する。第３部材は、第１部材とクラウンの間を連結する。第２部材は、プランジャの上端部および第１部材のそれぞれに対して回動可能である。第３部材は、第１部材およびクラウンのそれぞれに対して回動可能である。
　このように第１部材、第２部材および第３部材が設けられることによって、倍力機構の一例としてのトグルリンク機構を構成できる。 A press device according to an eleventh aspect of the invention is the press device according to the tenth aspect of the invention, wherein the second transmission mechanism has a plunger that is fixed to the upper side of the slide and guided in the vertical direction. The booster mechanism includes a first member, a second member, and a third member. The first member is rotatably connected to the piston rod. The second member connects between the first member and the plunger. The third member connects between the first member and the crown. The second member is rotatable with respect to each of the upper end portion of the plunger and the first member. The third member is rotatable with respect to each of the first member and the crown.
Thus, by providing the first member, the second member, and the third member, a toggle link mechanism as an example of a boost mechanism can be configured.
　第１２の発明に係るプレス装置は、第１１の発明に係るプレス装置であって、第１部材と第２部材の連結部において、第３部材は第１部材と連結されている。
　このように第１部材と第２部材の間の連結部と、第１部材と第３部材の間の連結部を同じ箇所にすることで省スペース化を図れる。 A press device according to a twelfth aspect of the present invention is the press device according to the eleventh aspect of the present invention, wherein the third member is connected to the first member at the connecting portion between the first member and the second member.
Thus, space saving can be achieved by making the connection part between the 1st member and the 2nd member and the connection part between the 1st member and the 3rd member into the same location.
　第１３の発明に係るプレス装置は、第１～１２のいずれかの発明に係るプレス装置であって、傾き補正部を更に備える。傾き補正部は、上金型が水平に保たれるようにスライドの傾斜を補正する。制御部は、荷重付与部によって材料に成形荷重を付与する際に、傾き補正部によりスライドの傾斜を補正する。
　ＣＦＲＰ等の液状若しくは柔らかい軟性の材料をプレスする際には、金型に形成されている加工品の形状によっては荷重に偏りが生じ、上金型が傾斜する場合がある。上述のように、傾き補正部を設けることによって上金型の傾斜を低減でき、加工精度を向上できる。 A press device according to a thirteenth invention is the press device according to any one of the first to twelfth inventions, further comprising an inclination correction unit. The tilt correction unit corrects the tilt of the slide so that the upper mold is kept horizontal. A control part correct | amends the inclination of a slide by an inclination correction | amendment part, when giving a shaping | molding load to material by a load provision part.
When pressing a liquid or soft soft material such as CFRP, the load may be biased depending on the shape of the workpiece formed on the mold, and the upper mold may be inclined. As described above, by providing the inclination correction unit, the inclination of the upper mold can be reduced, and the processing accuracy can be improved.
　第１４の発明に係るプレス装置は、第１３の発明に係るプレス装置であって、傾き補正部は、複数の油圧シリンダと、ポンプと、油圧シリンダごとに設けられたバルブと、を有する。ポンプは、作動油を複数の油圧シリンダに供給する。バルブは、油圧シリンダごとに設けられ、油圧シリンダに供給される作動油の量を調整する。油圧シリンダのピストンロッドは、成形荷重が付与される際にスライドに下方から当接する。制御部は、荷重付与部によって成形荷重を付与する際に、複数の油圧シリンダのピストンロッドのストロークが同じ長さになるようにバルブを制御する。
　これにより、ＣＦＲＰ等の液状若しくは柔らかい軟性の材料をプレスする際に、上金型の傾きを低減できる。 A press device according to a fourteenth aspect of the present invention is the press device according to the thirteenth aspect of the present invention, wherein the inclination correcting unit has a plurality of hydraulic cylinders, a pump, and a valve provided for each hydraulic cylinder. The pump supplies hydraulic oil to a plurality of hydraulic cylinders. A valve is provided for each hydraulic cylinder and adjusts the amount of hydraulic oil supplied to the hydraulic cylinder. The piston rod of the hydraulic cylinder contacts the slide from below when a molding load is applied. The control unit controls the valve so that the strokes of the piston rods of the plurality of hydraulic cylinders have the same length when the molding load is applied by the load applying unit.
Thereby, when a liquid or soft soft material such as CFRP is pressed, the inclination of the upper mold can be reduced.
　第１５の発明に係るプレス装置の制御方法は、上金型と下金型を用いて材料に対してプレス成形を行うプレス装置の制御方法であって、移動工程と、保持工程と、荷重付与工程と、を備える。移動工程は、電動モータの駆動を上金型が取り付けられているスライドに伝達してスライドを所定の高さまで移動させる。保持工程は、成形荷重の反力を受け止めるようにスライドを機械的に保持する。荷重付与工程は、所定の高さから油圧によって上金型を下方に移動し材料に成形荷重を付与する。 A control method for a press device according to a fifteenth aspect of the invention is a control method for a press device that press-forms a material using an upper die and a lower die, and includes a moving step, a holding step, and a load application. A process. In the moving step, the drive of the electric motor is transmitted to the slide to which the upper mold is attached, and the slide is moved to a predetermined height. In the holding step, the slide is mechanically held so as to receive the reaction force of the molding load. In the load applying step, the upper mold is moved downward by hydraulic pressure from a predetermined height to apply a molding load to the material.
　これにより、所定の高さまでは電動モータによってスライドを下方に移動させ、その高さから油圧を用いて成形荷重を付与してプレス成形を行うことが出来る。そのため、スライドのストロークに要する時間が短くでき、プレス成形にかかる時間を短縮できる。
　更に、スライドを保持する保持部が設けられ、成形荷重の反力を受け止めるようにスライドを保持でき、精度良く加工を行うことができる。 Accordingly, the slide can be moved downward by an electric motor at a predetermined height, and press molding can be performed by applying a molding load from the height using hydraulic pressure. Therefore, the time required for the slide stroke can be shortened, and the time required for press molding can be shortened.
Furthermore, a holding portion for holding the slide is provided, the slide can be held so as to receive the reaction force of the molding load, and processing can be performed with high accuracy.
　第１６の発明に係るプレス装置の制御方法は、第１５の発明に係るプレス装置の制御方法であって、停止工程を更に備える。停止工程は、保持工程の後に電動モータの駆動を停止する。
　保持工程によってスライドを保持している状態では、このように電動モータを停止できるため、電度モータにかかる負担を減少できる。
（発明の効果）
　本発明によれば、プレス加工に要する時間を短縮可能なプレス装置およびプレス装置の制御方法を提供することができる。 A control method for a press device according to a sixteenth invention is a control method for a press device according to a fifteenth invention, further comprising a stopping step. In the stop process, the drive of the electric motor is stopped after the holding process.
In a state where the slide is held by the holding step, the electric motor can be stopped in this way, so that the burden on the electric motor can be reduced.
(The invention's effect)
ADVANTAGE OF THE INVENTION According to this invention, the control method of a press apparatus and a press apparatus which can shorten the time which press processing requires can be provided.
本発明にかかる実施の形態１のプレス装置を模式的に示す正面図。The front view which shows typically the press apparatus of Embodiment 1 concerning this invention. 図１のプレス装置のスライド駆動部を示す正面図。The front view which shows the slide drive part of the press apparatus of FIG. （ａ）、（ｂ）図１のプレス装置のスライド保持部の構成を示す図。(A), (b) The figure which shows the structure of the slide holding | maintenance part of the press apparatus of FIG. 図１のプレス装置の荷重付与部の構成を示す図。The figure which shows the structure of the load provision part of the press apparatus of FIG. 図１のプレス装置の傾き補正部の構成を示す図。The figure which shows the structure of the inclination correction | amendment part of the press apparatus of FIG. 図１のプレス装置の制御ブロックを示す図。The figure which shows the control block of the press apparatus of FIG. 図１のプレス装置の制御方法を示すフロー図。The flowchart which shows the control method of the press apparatus of FIG. 図７の動作における上金型および下金型の位置の変化を示す図。The figure which shows the change of the position of the upper metal mold | die and the lower metal mold | die in the operation | movement of FIG. 本発明にかかる実施の形態２のプレス装置を模式的に示す正面図。The front view which shows typically the press apparatus of Embodiment 2 concerning this invention. （ａ）、（ｂ）図９のプレス装置のスライド保持部の構成を示す図。(A), (b) The figure which shows the structure of the slide holding | maintenance part of the press apparatus of FIG. 図９のプレス装置の荷重付与部の構成を示す図。The figure which shows the structure of the load provision part of the press apparatus of FIG. 図９のプレス装置の制御方法を示すフロー図。The flowchart which shows the control method of the press apparatus of FIG. 本発明にかかる実施の形態３のプレス装置を模式的に示す正面図。The front view which shows typically the press apparatus of Embodiment 3 concerning this invention. （ａ）、（ｂ）図１３のプレス装置のスライド保持部の構成を示す断面図。(A), (b) Sectional drawing which shows the structure of the slide holding | maintenance part of the press apparatus of FIG. 図１３のプレス装置のスライド保持部を示す平面図。The top view which shows the slide holding | maintenance part of the press apparatus of FIG. 図１３のプレス装置の荷重付与部の構成を示す図。The figure which shows the structure of the load provision part of the press apparatus of FIG. （ａ）、（ｂ）図１６の荷重付与部の動作を説明するための図。(A), (b) The figure for demonstrating operation | movement of the load provision part of FIG. 図１３のプレス装置の制御方法を示すフロー図。The flowchart which shows the control method of the press apparatus of FIG. 本発明にかかる実施の形態１のプレス装置の変形例の構成を示す正面図。The front view which shows the structure of the modification of the press apparatus of Embodiment 1 concerning this invention. 図１９のプレス装置の制御方法を示すフロー図。The flowchart which shows the control method of the press apparatus of FIG. 本発明にかかる実施の形態３のプレス装置の変形例の構成を示す図。The figure which shows the structure of the modification of the press apparatus of Embodiment 3 concerning this invention.
　本発明のプレス装置について図面を参照しながら以下に説明する。
　（実施の形態１）
　＜１．構成＞
　（１－１．プレス装置の概要）
　図１は、本発明にかかる実施の形態のプレス装置１の構成を示す模式図である。 The press apparatus of the present invention will be described below with reference to the drawings.
(Embodiment 1)
<1. Configuration>
(1-1. Outline of press machine)
FIG. 1 is a schematic diagram showing a configuration of a press apparatus 1 according to an embodiment of the present invention.
　本実施の形態のプレス装置１は、ＣＦＲＰ等の樹脂材料に対してプレス成形を行う。図１では、例えば、炭素繊維で形作られたプリフォーム材３０１が示されている。このプリフォーム材３０１と溶融している熱硬化性樹脂がプレス装置１によってプレス加工される。
　プレス装置１は、主に、ベッド２と、アプライト３と、クラウン４と、スライド５と、スライド駆動部６と、荷重付与部７と、スライド保持部８と、傾き補正部９と、ボルスタ１０と、制御部１１（図２参照）と、を備える。 The press apparatus 1 according to the present embodiment performs press molding on a resin material such as CFRP. In FIG. 1, for example, a preform material 301 formed of carbon fiber is shown. The preform material 301 and the molten thermosetting resin are pressed by the press device 1.
The press device 1 mainly includes a bed 2, an upright 3, a crown 4, a slide 5, a slide drive unit 6, a load applying unit 7, a slide holding unit 8, an inclination correction unit 9, and a bolster 10. And a control unit 11 (see FIG. 2).
　ベッド２は、フロアに埋め込まれており、プレス装置１の土台を構成する。アプライト３は、柱状の部材であり、ベッド２上に４本配置されている。４本のアプライト３は、平面視において矩形状の各頂点を形成するように配置されている。
　クラウン４は、４本のアプライト３によって上方に支持されている。スライド５は、クラウン４の下側に昇降自在に吊下されている。スライド５の下面５ｓには、図示しないダイクランパによって上金型１２ａが着脱自在に取り付けられている。ボルスタ１０は、スライド５の下方であってベッド２上に配置されている。ボルスタ１０の上側には下金型１２ｂが載置される。 The bed 2 is embedded in the floor and constitutes the base of the press device 1. The uprights 3 are columnar members, and four are arranged on the bed 2. The four uprights 3 are arranged so as to form rectangular vertices in plan view.
The crown 4 is supported upward by the four uprights 3. The slide 5 is suspended below the crown 4 so as to be movable up and down. An upper mold 12a is detachably attached to the lower surface 5s of the slide 5 by a die clamper (not shown). The bolster 10 is disposed on the bed 2 below the slide 5. On the upper side of the bolster 10, a lower mold 12b is placed.
　スライド駆動部６は、クラウン４に設けられており、クラウン４の下側に吊下されたスライド５を昇降させる。スライド駆動部６は、スライド５を成形領域に達する高さ（所定の高さの一例）まで降下させる。ここで、成形領域とは、成形荷重を付与することによって上金型１２ａおよび下金型１２ｂによってプレス成形が行われる領域のことである。
　荷重付与部７は、成形領域に達したスライド５に対して油圧を用いて所定の作動圧を加えながら、スライド５を下降させることによって、上金型１２ａと下金型１２ｂの間の材料に成形荷重を付与する。この成形荷重の付与によってプレス成形が行われる。 The slide drive unit 6 is provided on the crown 4 and raises and lowers the slide 5 suspended below the crown 4. The slide drive unit 6 lowers the slide 5 to a height (an example of a predetermined height) that reaches the molding region. Here, the molding region is a region where press molding is performed by the upper mold 12a and the lower mold 12b by applying a molding load.
The load applying unit 7 lowers the slide 5 while applying a predetermined operating pressure to the slide 5 that has reached the forming region by using hydraulic pressure, thereby applying a material to the material between the upper mold 12a and the lower mold 12b. A molding load is applied. Press molding is performed by applying the molding load.
　スライド保持部８は、成形荷重の反力を受け止めるようにスライド５を保持する。詳細には、スライド駆動部６を機械的に固定することで、スライド５を成形領域に達する高さ（所定の高さの一例）より上方に移動しないように保持する。
　傾き補正部９は、プリフォーム材３０１と熱硬化性樹脂に成形荷重を付与している間、スライド５を水平に保つためにスライド５の傾きを補正する。
　制御部１１は、詳しくは後述するが、スライド駆動部６、荷重付与部７、スライド保持部８、および傾き補正部９等の制御を行ってプレス成形を実行する。 The slide holding unit 8 holds the slide 5 so as to receive the reaction force of the molding load. Specifically, the slide drive unit 6 is mechanically fixed to hold the slide 5 so as not to move above a height (an example of a predetermined height) reaching the forming region.
The inclination correction unit 9 corrects the inclination of the slide 5 in order to keep the slide 5 horizontal while applying a molding load to the preform material 301 and the thermosetting resin.
As will be described in detail later, the control unit 11 performs press molding by controlling the slide driving unit 6, the load applying unit 7, the slide holding unit 8, the inclination correcting unit 9, and the like.
　（１－２．スライド駆動部）
　スライド駆動部６は、クラウン４に設けられており、スライド５を昇降動作させる。スライド駆動部６は、４点でスライド５を支持している。スライド駆動部６は、駆動源である４つのサーボモータ６０と、それぞれのサーボモータ６０の駆動をスライドに伝達する４つの伝達機構６６とを有する。 (1-2. Slide drive unit)
The slide drive unit 6 is provided on the crown 4 and moves the slide 5 up and down. The slide drive unit 6 supports the slide 5 at four points. The slide drive unit 6 includes four servo motors 60 that are drive sources and four transmission mechanisms 66 that transmit the drive of each servo motor 60 to the slide.
　それぞれの伝達機構６６は、各々のサーボモータ６０の回転を減速する第１減速機６１と及び第２減速機６２と、減速された回転運動を上下方向への往復運動に変換する昇降部６３と、下端がスライド５に固定されてスライド５を上下方向に移動させるプランジャ６４と、プランジャ６４を上下方向にガイドするプランジャホルダ６５とを有している。プランジャホルダ６５は、プランジャ６４の左右方向の動きを規制しているともいえる。 Each transmission mechanism 66 includes a first speed reducer 61 and a second speed reducer 62 that decelerate the rotation of each servo motor 60, and an elevating unit 63 that converts the decelerated rotational motion into a reciprocating motion in the vertical direction. The lower end is fixed to the slide 5 and has a plunger 64 that moves the slide 5 in the vertical direction, and a plunger holder 65 that guides the plunger 64 in the vertical direction. It can be said that the plunger holder 65 restricts the movement of the plunger 64 in the left-right direction.
　図２は、１組のサーボモータ６０および伝達機構６６の構成を示す図である。サーボモータ６０は、その駆動軸６０ａが水平方向に配置されるようにクラウン４に取り付けられている。図１では、２組のサーボモータ６０および伝達機構６６のみが示されているが、紙面奥側に残り２組が設けられている。
　第１減速機６１は、等速減速機であって、サーボモータ６０の駆動軸６０ａに連結されている。第１減速機６１は、大プーリ６１ａと、第１ギヤ６１ｂと、第１ピニオン６１ｃと、第２ギヤ６１ｄと、第２ピニオン６１ｅと、第３ピニオン６１ｆとを有している。大プーリ６１ａは、サーボモータ６０の駆動軸６０ａに固定された小プーリ６８の回転がベルト６７によって伝達される。第１ギヤ６１ｂは、大プーリ６１ａに一体的に設けられた第１ピニオン６１ｃに噛み合う。第２ギヤ６１ｄは、第１ギヤ６１ｂに一体的に設けられた第２ピニオン６１ｅと噛み合う。第３ピニオン６１ｆは、第２ギヤ６１ｄと一体的に設けられており、第２減速機６２の外周に配置された大径のヘリカルギヤ６２ａに噛み合っている。 FIG. 2 is a diagram showing the configuration of one set of servo motor 60 and transmission mechanism 66. The servo motor 60 is attached to the crown 4 so that the drive shaft 60a is arranged in the horizontal direction. In FIG. 1, only two sets of servo motor 60 and transmission mechanism 66 are shown, but the remaining two sets are provided on the back side of the drawing.
The first speed reducer 61 is a constant speed reducer and is connected to the drive shaft 60 a of the servo motor 60. The first speed reducer 61 has a large pulley 61a, a first gear 61b, a first pinion 61c, a second gear 61d, a second pinion 61e, and a third pinion 61f. In the large pulley 61 a, the rotation of the small pulley 68 fixed to the drive shaft 60 a of the servomotor 60 is transmitted by the belt 67. The first gear 61b meshes with a first pinion 61c provided integrally with the large pulley 61a. The second gear 61d meshes with a second pinion 61e provided integrally with the first gear 61b. The third pinion 61 f is provided integrally with the second gear 61 d and meshes with a large-diameter helical gear 62 a disposed on the outer periphery of the second reduction gear 62.
　第２減速機６２は、一回転中の回転速度が不等速となるように減速して動力を昇降部６３のエキセン軸６３ａに伝達するウィットウォース減速機である。第２減速機６２は、ヘリカルギヤ６２ａと、レバー６２ｂと、連結部材６２ｃとを有する。ヘリカルギヤ６２ａは、リング状であって、第２減速機６２の外周部に配置される。レバー６２ｂは、クラウン４のフレームから水平方向に突出して設けられたエキセン軸６３ａに固定されている。連結部材６２ｃは、レバー６２ｂとヘリカルギヤ６２ａの内周の間を連結する。ヘリカルギヤ６２ａの回転中心は、エキセン軸６３ａの軸心の鉛直方向上方に配置されている。 The second speed reducer 62 is a Whitworth speed reducer that transmits power to the eccentric shaft 63a of the elevating unit 63 by decelerating so that the rotational speed during one rotation becomes unequal. The second reduction device 62 includes a helical gear 62a, a lever 62b, and a connecting member 62c. The helical gear 62 a has a ring shape and is disposed on the outer peripheral portion of the second reduction gear 62. The lever 62b is fixed to an eccentric shaft 63a provided so as to protrude from the frame of the crown 4 in the horizontal direction. The connecting member 62c connects between the lever 62b and the inner periphery of the helical gear 62a. The rotational center of the helical gear 62a is arranged vertically above the axis of the eccentric shaft 63a.
　昇降部６３は、エキセン軸６３ａと、エキセンドラム６３ｂと、コンロッド６３ｃと、を有する。エキセン軸６３ａは、エキセンドラム６３ｂの両側でクラウン４のフレームに軸支されている。エキセンドラム６３ｂは、エキセン軸６３ａに対して偏心した円盤状に形成されており、エキセン軸６３ａの回転とともに偏心回転する。コンロッド６３ｃは、エキセンドラム６３ｂに接続されている。コンロッド６３ｃの下方にはプランジャ６４が接続され、プランジャ６４の下方にスライド５が取り付けられている。 The elevating part 63 has an eccentric shaft 63a, an eccentric drum 63b, and a connecting rod 63c. The eccentric shaft 63a is pivotally supported by the frame of the crown 4 on both sides of the eccentric drum 63b. The eccentric drum 63b is formed in a disc shape eccentric with respect to the eccentric shaft 63a, and rotates eccentrically with the rotation of the eccentric shaft 63a. The connecting rod 63c is connected to the eccentric drum 63b. A plunger 64 is connected below the connecting rod 63c, and the slide 5 is attached below the plunger 64.
　プランジャホルダ６５は、クラウン４の下側に固定されており、プランジャ６４を上下方向にガイドする。
　以上の構成の昇降部６３のエキセンドラム６３ｂが偏心回転することによってコンロッド６３ｃが揺動してプランジャ６４が上下方向に移動し、スライド５が上下方向に移動する。 The plunger holder 65 is fixed to the lower side of the crown 4 and guides the plunger 64 in the vertical direction.
When the eccentric drum 63b of the lifting / lowering part 63 having the above configuration rotates eccentrically, the connecting rod 63c swings, the plunger 64 moves in the vertical direction, and the slide 5 moves in the vertical direction.
　（１－３．スライド保持部）
　図３（ａ）、（ｂ）は、スライド保持部８による伝達機構６６の固定を説明するための図である。スライド保持部８は、４つのサーボモータ６０の駆動が伝達されるそれぞれのヘリカルギヤ６２ａを固定することによってスライド５を成形領域の上限位置の高さに保持する。 (1-3. Slide holding part)
FIGS. 3A and 3B are views for explaining the fixing of the transmission mechanism 66 by the slide holding portion 8. The slide holding unit 8 holds the slide 5 at the height of the upper limit position of the molding region by fixing the respective helical gears 62a to which the drive of the four servomotors 60 is transmitted.
　スライド保持部８は、嵌合部８０と、嵌合部８０をヘリカルギヤ６２ａに向かって移動させる移動部８６とを有している。移動部８６は、油圧シリンダ８１と、ポンプ８３と、保持用油圧回路８７と、作動油タンク８５とを有する。
　保持用油圧回路８７は、主に、方向切換バルブ８２と、第１接続路８４ａと、第２接続路８４ｂと、第３接続路８４ｃと、排油路８４ｄと、を含む。 The slide holding part 8 has a fitting part 80 and a moving part 86 that moves the fitting part 80 toward the helical gear 62a. The moving unit 86 includes a hydraulic cylinder 81, a pump 83, a holding hydraulic circuit 87, and a hydraulic oil tank 85.
The holding hydraulic circuit 87 mainly includes a direction switching valve 82, a first connection path 84a, a second connection path 84b, a third connection path 84c, and an oil discharge path 84d.
　油圧シリンダ８１は、シリンダチューブ８１ａと、シリンダチューブ８１ａ内を移動可能なピストン８１ｂと、ピストン８１ｂに連結されたピストンロッド８１ｃとを有している。シリンダチューブ８１ａ内の空間は、ピストン８１ｂによってピストンロッド８１ｃ側の第１空間８１ｄと、ピストンロッド８１ｃと反対側の第２空間８１ｅに分けられている。第１接続路８４ａは、作動油が流通し、第１空間８１ｄと方向切換バルブ８２の間を接続する。第２接続路８４ｂは、作動油が流通し、第２空間８１ｅと方向切換バルブ８２の間を接続する。第３接続路８４ｃは、作動油タンク８５と方向切換バルブ８２の間を接続する。第３接続路８４ｃにはポンプ８３が配置されている。排油路８４ｄは、方向切換バルブ８２と作動油タンク８５の間を接続する。 The hydraulic cylinder 81 has a cylinder tube 81a, a piston 81b movable within the cylinder tube 81a, and a piston rod 81c connected to the piston 81b. The space in the cylinder tube 81a is divided by the piston 81b into a first space 81d on the piston rod 81c side and a second space 81e on the opposite side to the piston rod 81c. The first connecting path 84a circulates hydraulic oil and connects the first space 81d and the direction switching valve 82. The hydraulic fluid flows through the second connection path 84b and connects between the second space 81e and the direction switching valve 82. The third connection path 84 c connects between the hydraulic oil tank 85 and the direction switching valve 82. A pump 83 is disposed in the third connection path 84c. The oil drain passage 84 d connects between the direction switching valve 82 and the hydraulic oil tank 85.
　方向切換バルブ８２は、第１接続路８４ａと第３接続路８４ｃを接続し第２接続路８４ｂと排油路８４ｄを接続する状態と、第１接続路８４ａと排油路８４ｄを接続し第２接続路８４ｂと第３接続路８４ｃを接続する状態と、全ての流路が閉じられた閉状態に切り替えられる。
　方向切換バルブ８２およびポンプ８３は、制御部１１によって制御される。 The direction switching valve 82 connects the first connection path 84a and the third connection path 84c and connects the second connection path 84b and the oil drain path 84d, and connects the first connection path 84a and the oil drain path 84d. The state is switched between a state where the two connection paths 84b and the third connection path 84c are connected and a closed state where all the flow paths are closed.
The direction switching valve 82 and the pump 83 are controlled by the control unit 11.
　嵌合部８０は、ヘリカルギヤ６２ａの歯６２１の間に嵌合可能である。嵌合部８０は、ピストンロッド８１ｃの先端に配置されている。
　サーボモータ６０によって駆動しているため、後述する制御部１１は、嵌合部８０に対向する位置に歯６２１の間が位置するようにヘリカルギヤ６２ａを停止できる。
　その後、第１接続路８４ａと排油路８４ｄを接続し第２接続路８４ｂと第３接続路８４ｃを接続するように方向切換バルブ８２を切り替えてポンプ８３を動作させる。これにより、作動油が第２空間８１ｅに供給され第１空間８１ｄから作動油が排出されて、ピストンロッドが８１ｃ伸びるようにピストン８１ｂが押される。これによってピストンロッド８１ｃの先端に配置されている嵌合部８０が、ヘリカルギヤ６２ａに向かって移動し、図３（ｂ）に示すように歯６２１の間に嵌る。 The fitting part 80 can be fitted between the teeth 621 of the helical gear 62a. The fitting portion 80 is disposed at the tip of the piston rod 81c.
Since it is driven by the servo motor 60, the control unit 11 described later can stop the helical gear 62 a so that the space between the teeth 621 is located at a position facing the fitting unit 80.
Thereafter, the direction switching valve 82 is switched to operate the pump 83 so that the first connection path 84a and the oil discharge path 84d are connected and the second connection path 84b and the third connection path 84c are connected. As a result, the hydraulic oil is supplied to the second space 81e, the hydraulic oil is discharged from the first space 81d, and the piston 81b is pushed so that the piston rod extends 81c. As a result, the fitting portion 80 arranged at the tip of the piston rod 81c moves toward the helical gear 62a and fits between the teeth 621 as shown in FIG.
　このように、スライド保持部８によって、伝達機構６６が機械的に固定される。
　なお、伝達機構６６の固定を解除する場合には、第１接続路８４ａと第３接続路８４ｃを接続し第２接続路８４ｂと排油路８４ｄを接続するように方向切換バルブ８２を切り替えてポンプ８３を動作させることにより作動油が第１空間８１ｄに供給され第２空間８１ｅから作動油が排出される。これによって、ピストンロッド８１ｃがシリンダチューブ８１ａに引き込まれ、嵌合部８０が歯６２１の間から離間する。
　なお、図３では、１つの油圧シリンダ８１の保持用油圧回路８７のみを示しているが、４つの油圧シリンダ８１のそれぞれに保持用油圧回路８７が設けられている。また、ポンプ８３および作動油タンク８５などは４つの保持用油圧回路８７に対して共通で用いられても良い。また、油圧シリンダ８１は複動式に限らず単動式であってもよい。 Thus, the transmission mechanism 66 is mechanically fixed by the slide holding portion 8.
When releasing the transmission mechanism 66, the direction switching valve 82 is switched so that the first connection path 84a and the third connection path 84c are connected and the second connection path 84b and the oil discharge path 84d are connected. By operating the pump 83, hydraulic oil is supplied to the first space 81d and discharged from the second space 81e. As a result, the piston rod 81 c is drawn into the cylinder tube 81 a and the fitting portion 80 is separated from between the teeth 621.
In FIG. 3, only the holding hydraulic circuit 87 for one hydraulic cylinder 81 is shown, but a holding hydraulic circuit 87 is provided for each of the four hydraulic cylinders 81. The pump 83 and the hydraulic oil tank 85 may be used in common for the four holding hydraulic circuits 87. Further, the hydraulic cylinder 81 is not limited to a double-acting type but may be a single-acting type.
　（１－４．荷重付与部）
　荷重付与部７は、所定の圧力でスライド５を下方に移動させることによりプリフォーム材３０１と熱硬化性樹脂に成形荷重を付与してプレス成形を行う。所定の圧力とは、プリフォーム材３０１と熱硬化性樹脂に対して所望の成形荷重を付加できる圧力である。図４は、荷重付与部７の構成を示す図である。荷重付与部７は、主に、スライド５内に設けられている４つの油圧シリンダ７１と、それぞれの油圧シリンダ７１に接続された荷重用油圧回路７８と、作動油を供給するポンプ７５と、作動油タンク７７とを有する。 (1-4. Load applying part)
The load application unit 7 performs press molding by applying a molding load to the preform material 301 and the thermosetting resin by moving the slide 5 downward at a predetermined pressure. The predetermined pressure is a pressure at which a desired molding load can be applied to the preform material 301 and the thermosetting resin. FIG. 4 is a diagram illustrating a configuration of the load applying unit 7. The load applying unit 7 mainly includes four hydraulic cylinders 71 provided in the slide 5, a load hydraulic circuit 78 connected to each hydraulic cylinder 71, a pump 75 for supplying hydraulic oil, and an operation. And an oil tank 77.
　荷重用油圧回路７８は、方向切換バルブ７２と、流量調整バルブ７３と、圧力制御バルブ７４と、第１接続路７６ａと、第２接続路７６ｂと、第３接続路７６ｃと、排油路７６ｄとを含む。
　油圧シリンダ７１は、鉛直方向に配置されたシリンダチューブ７１ａと、シリンダチューブ７１ａ内を鉛直方向に移動可能なピストン７１ｂを有する。ピストン７１ｂは、プランジャ６４の下端と接続されている。ピストン７１ｂによってシリンダチューブ７１ａ内の空間は、下方空間７１ｃと上方空間７１ｄに分けられる。 The load hydraulic circuit 78 includes a direction switching valve 72, a flow rate adjustment valve 73, a pressure control valve 74, a first connection path 76a, a second connection path 76b, a third connection path 76c, and an oil discharge path 76d. Including.
The hydraulic cylinder 71 has a cylinder tube 71a arranged in the vertical direction and a piston 71b that can move in the vertical direction in the cylinder tube 71a. The piston 71 b is connected to the lower end of the plunger 64. The space in the cylinder tube 71a is divided into a lower space 71c and an upper space 71d by the piston 71b.
　第１接続路７６ａは、作動油が流通し、下方空間７１ｃと方向切換バルブ７２の間を接続する。第２接続路７６ｂは、作動油が流通し、上方空間７１ｄと方向切換バルブ７２の間を接続する。第３接続路７６ｃは、作動油タンク７７と方向切換バルブ７２の間を接続する。第３接続路７６ｃにはポンプ７５が配置されている。排油路７６ｄは、方向切換バルブ７２と作動油タンク７７の間を接続する。 In the first connection path 76a, the hydraulic oil flows and connects between the lower space 71c and the direction switching valve 72. In the second connection path 76 b, hydraulic oil flows and connects the upper space 71 d and the direction switching valve 72. The third connection path 76 c connects between the hydraulic oil tank 77 and the direction switching valve 72. A pump 75 is disposed in the third connection path 76c. The oil drain passage 76 d connects between the direction switching valve 72 and the hydraulic oil tank 77.
　流量調整バルブ７３は、第３接続路７６ｃに設けられており、圧力制御バルブ７４は、第３接続路７６ｃと排油路７６ｄを接続する流路上に設けられている。
　方向切換バルブ７２は、第１接続路７６ａと第３接続路７６ｃを接続し第２接続路７６ｂと排油路７６ｄを接続する状態と、第１接続路７６ａと排油路７６ｄを接続し第２接続路７６ｂと第３接続路７６ｃを接続する状態と、全ての流路が閉じられた閉状態に切り替えられる。 The flow rate adjustment valve 73 is provided in the third connection path 76c, and the pressure control valve 74 is provided on the flow path connecting the third connection path 76c and the oil drainage path 76d.
The direction switching valve 72 connects the first connection path 76a and the third connection path 76c and connects the second connection path 76b and the oil drain path 76d, and connects the first connection path 76a and the oil drain path 76d. The state is switched between a state in which the two connection paths 76b and the third connection path 76c are connected and a closed state in which all the flow paths are closed.
　方向切換バルブ７２、流量調整バルブ７３、圧力制御バルブ７４およびポンプ７５を制御することによって、スライド５を所定の圧力で下方に移動しプリフォーム材３０１と熱硬化性樹脂に成形荷重を付与できる。すなわち、第１接続路７６ａと第３接続路７６ｃを接続し第２接続路７６ｂと排油路７６ｄを接続する状態に方向切換バルブ７２を切り替えて、流量調整バルブ７３、圧力制御バルブ７４およびポンプ７５を制御することによって下方空間７１ｃに作動油が供給されて上方空間７１ｄから作動油が排出される。これにより、スライド５が下方に移動し、上金型１２ａに所望の成形荷重が付加される。 By controlling the direction switching valve 72, the flow rate adjusting valve 73, the pressure control valve 74, and the pump 75, the slide 5 can be moved downward at a predetermined pressure, and a molding load can be applied to the preform material 301 and the thermosetting resin. That is, the direction switching valve 72 is switched to a state in which the first connection path 76a and the third connection path 76c are connected and the second connection path 76b and the oil discharge path 76d are connected, and the flow rate adjusting valve 73, the pressure control valve 74, and the pump By controlling 75, hydraulic oil is supplied to the lower space 71c and discharged from the upper space 71d. Thereby, the slide 5 moves downward and a desired molding load is applied to the upper mold 12a.
　一方、第１接続路７６ａと排油路７６ｄを接続し第２接続路７６ｂと第３接続路７６ｃを接続する状態に方向切換バルブ７２を切り替えて、流量調整バルブ７３、圧力制御バルブ７４およびポンプ７５を制御することによって上方空間７１ｄに作動油が供給されて下方空間７１ｃから作動油が排出される。これにより、スライド５が上方に移動する。
　なお、図４では、１つの油圧シリンダ７１の荷重用油圧回路７８のみを示しているが、４つの油圧シリンダ７１のそれぞれに荷重用油圧回路７８が設けられている。また、ポンプ７５および作動油タンク７７などは４つの荷重用油圧回路７８に対して共通で用いられても良い。 On the other hand, the direction switching valve 72 is switched to a state in which the first connection path 76a and the oil discharge path 76d are connected and the second connection path 76b and the third connection path 76c are connected, and the flow rate adjusting valve 73, the pressure control valve 74, and the pump By controlling 75, the hydraulic oil is supplied to the upper space 71d and discharged from the lower space 71c. Thereby, the slide 5 moves upward.
In FIG. 4, only the load hydraulic circuit 78 of one hydraulic cylinder 71 is shown, but the load hydraulic circuit 78 is provided in each of the four hydraulic cylinders 71. Further, the pump 75, the hydraulic oil tank 77, and the like may be used in common for the four load hydraulic circuits 78.
　（１－５．傾き補正部）
　傾き補正部９は、プリフォーム材３０１と熱硬化性樹脂に成形荷重を付与する際に、スライド５の傾きを補正する。
　図５は、傾き補正部９の構成を示す図である。傾き補正部９は、主に、４組の当接部９０、油圧シリンダ９１、リニアセンサ９２および補正用油圧回路９８と、４つの油圧シリンダ９１に作動油を供給するポンプ９５と、作動油タンク９７を有する。 (1-5. Inclination correction unit)
The inclination correction unit 9 corrects the inclination of the slide 5 when a molding load is applied to the preform material 301 and the thermosetting resin.
FIG. 5 is a diagram illustrating a configuration of the inclination correction unit 9. The inclination correction unit 9 mainly includes four sets of contact portions 90, a hydraulic cylinder 91, a linear sensor 92, a correction hydraulic circuit 98, a pump 95 that supplies hydraulic oil to the four hydraulic cylinders 91, and a hydraulic oil tank. 97.
　図５では、説明のために４つの油圧シリンダ９１を並べて図示しているが、実際には、４つの油圧シリンダ９１は、スライド５の下方であって、平面視においてスライド５の４隅に配置されている。図１では、紙面手前側の２つの油圧シリンダ９１のみが示されており、紙面奥側に更に２つの油圧シリンダ９１が配置されている。
　４つの油圧シリンダ９１には、それぞれ補正用油圧回路９８が接続されており、１つのポンプ９５から補正用油圧回路９８を介して油圧シリンダ９１に作動油が供給される。尚、４つの油圧シリンダ９１の補正用油圧回路９８の構成は同じであるため、１つの油圧シリンダ９１についてのみ説明する。 In FIG. 5, four hydraulic cylinders 91 are shown side by side for explanation, but actually, the four hydraulic cylinders 91 are arranged below the slide 5 and at the four corners of the slide 5 in plan view. Has been. In FIG. 1, only two hydraulic cylinders 91 on the front side of the paper are shown, and two more hydraulic cylinders 91 are arranged on the back side of the paper.
A correction hydraulic circuit 98 is connected to each of the four hydraulic cylinders 91, and hydraulic oil is supplied from one pump 95 to the hydraulic cylinder 91 via the correction hydraulic circuit 98. Note that since the correction hydraulic circuit 98 of the four hydraulic cylinders 91 has the same configuration, only one hydraulic cylinder 91 will be described.
　油圧シリンダ９１は、鉛直方向に配置されたシリンダチューブ９１ａと、シリンダチューブ９１ａ内を鉛直方向に移動可能なピストン９１ｂと、ピストン９１ｂに接続されシリンダチューブ９１ａから上方に向かって伸縮可能なピストンロッド９１ｃとを有している。
　ピストンロッド９１ｃの上端には、当接部９０が設けられている。当接部９０は、成形荷重を付与している間は、スライド５に当接している。 The hydraulic cylinder 91 includes a cylinder tube 91a arranged in the vertical direction, a piston 91b that can move in the vertical direction in the cylinder tube 91a, and a piston rod 91c that is connected to the piston 91b and can expand and contract upward from the cylinder tube 91a. And have.
A contact portion 90 is provided at the upper end of the piston rod 91c. The contact portion 90 is in contact with the slide 5 while a molding load is applied.
　ピストン９１ｂによってシリンダチューブ９１ａ内の空間は、下方空間９１ｄと上方空間９１ｅに分けられる。
　リニアセンサ９２は、当接部９０の位置を監視し、位置に関する情報を制御部１１へと送信する。
　次に、補正用油圧回路９８について説明する。補正用油圧回路９８は、第１サーボバルブ９３、第２サーボバルブ９４と、第１接続路９６ａと、第２接続路９６ｂと、第３接続路９６ｃと、排油路９６ｄとを有している。第１接続路９６ａは、作動油が流通し、下方空間９１ｄと第１サーボバルブ９３の間を接続する。第２接続路９６ｂは、作動油が流通し、上方空間９１ｅと第２サーボバルブ９４の間を接続する。第３接続路９６ｃは、作動油タンク９７と第１サーボバルブ９３および第２サーボバルブ９４との間を接続する。第３接続路９６ｃにはポンプ９５が配置されている。排油路９６ｄは、第１サーボバルブ９３と作動油タンク９７の間を接続する。第１サーボバルブ９３は、流量を制御しながら、第１接続路９６ａを第３接続路９６ｃまたは排油路９６ｄと接続できる。また、第２サーボバルブ９４は、流量を調整しながら第２接続路９６ｂを第３接続路９６ｃまたは排油路９６ｄと接続できる。 The space in the cylinder tube 91a is divided into a lower space 91d and an upper space 91e by the piston 91b.
The linear sensor 92 monitors the position of the contact portion 90 and transmits information related to the position to the control unit 11.
Next, the correction hydraulic circuit 98 will be described. The correction hydraulic circuit 98 includes a first servo valve 93, a second servo valve 94, a first connection path 96a, a second connection path 96b, a third connection path 96c, and an oil discharge path 96d. Yes. The hydraulic fluid flows through the first connection path 96 a and connects the lower space 91 d and the first servo valve 93. The hydraulic fluid flows through the second connection path 96b and connects between the upper space 91e and the second servo valve 94. The third connection path 96 c connects between the hydraulic oil tank 97 and the first servo valve 93 and the second servo valve 94. A pump 95 is disposed in the third connection path 96c. The oil drainage passage 96 d connects between the first servo valve 93 and the hydraulic oil tank 97. The first servo valve 93 can connect the first connection path 96a to the third connection path 96c or the oil discharge path 96d while controlling the flow rate. Further, the second servo valve 94 can connect the second connection path 96b to the third connection path 96c or the oil discharge path 96d while adjusting the flow rate.
　４つの補正用油圧回路９８の第３接続路９６ｃはポンプ９５の下流側から分岐してそれぞれの第１サーボバルブ９３と第２サーボバルブ９４に繋がっている。また、４つの補正用油圧回路９８の第１サーボバルブ９３と第２サーボバルブ９４に接続されている排油路９６ｄは作動油タンク９７の上流側で合流している。
　制御部１１は、４軸の油圧シリンダ９１の独立制御を行う。制御部１１は、成形荷重を付加する際に、４軸の油圧シリンダ９１の位置、すなわちスライド５の下面５ｓに当接している当接部９０の位置が同一となるように第１サーボバルブ９３および第２サーボバルブ９４を制御する。すなわち、リニアセンサ９２の位置情報を制御部１１にフィードバックしつつ、第１サーボバルブ９３と第２サーボバルブ９４を制御して下方空間９１ｄまたは上方空間９１ｅに作動油を供給してピストンロッド９１ｃのストロークを制御することにより、４つの当接部９０の高さ位置が同じ位置になるように制御される。 The third connection passages 96 c of the four correction hydraulic circuits 98 are branched from the downstream side of the pump 95 and connected to the first servo valve 93 and the second servo valve 94, respectively. Further, the oil drainage passage 96 d connected to the first servo valve 93 and the second servo valve 94 of the four correction hydraulic circuits 98 merges on the upstream side of the hydraulic oil tank 97.
The control unit 11 performs independent control of the four-axis hydraulic cylinder 91. When the molding load is applied, the controller 11 controls the first servo valve 93 so that the position of the four-axis hydraulic cylinder 91, that is, the position of the abutting portion 90 that abuts the lower surface 5s of the slide 5 is the same. And the second servo valve 94 is controlled. That is, while feeding back the position information of the linear sensor 92 to the control unit 11, the first servo valve 93 and the second servo valve 94 are controlled to supply hydraulic oil to the lower space 91d or the upper space 91e, and the piston rod 91c. By controlling the stroke, the height positions of the four contact portions 90 are controlled to be the same position.
　（１－６．制御構成）
　図６は、本実施の形態のプレス装置１の制御構成を示すブロック図である。制御部１１は、スライド駆動部６のサーボモータ６０を駆動制御しスライド５を昇降動作させる。制御部１１は、スライド保持部８のポンプ８３および方向切換バルブ８２を制御することによって油圧シリンダ８１を動作させて嵌合部８０を制御する。 (1-6. Control configuration)
FIG. 6 is a block diagram showing a control configuration of the press apparatus 1 of the present embodiment. The control unit 11 drives and controls the servo motor 60 of the slide drive unit 6 to move the slide 5 up and down. The control unit 11 controls the fitting unit 80 by operating the hydraulic cylinder 81 by controlling the pump 83 and the direction switching valve 82 of the slide holding unit 8.
　制御部１１は、荷重付与部７の方向切換バルブ７２、流量調整バルブ７３、圧力制御バルブ７４およびポンプ７５を制御することによってスライド５に所定の圧力が付与されて上金型１２ａと下金型１２ｂの間のプリフォーム材３０１と熱硬化性樹脂に成形荷重が付与される。
　制御部１１は、リニアセンサ９２の検出結果に基づいて傾き補正部９のポンプ９５および４組の第１サーボバルブ９３並びに第２サーボバルブ９４を制御することによって成形荷重付与時のスライド５の傾きを補正する。 The control unit 11 controls the direction switching valve 72, the flow rate adjustment valve 73, the pressure control valve 74, and the pump 75 of the load applying unit 7 so that a predetermined pressure is applied to the slide 5, and the upper mold 12a and the lower mold are controlled. A molding load is applied to the preform material 301 and the thermosetting resin between 12b.
The control unit 11 controls the tilt of the slide 5 when a forming load is applied by controlling the pump 95 and the four first servo valves 93 and the second servo valve 94 of the tilt correction unit 9 based on the detection result of the linear sensor 92. Correct.
　なお、制御部１１は、サーボモータ６０、方向切換バルブ８２、方向切換バルブ７２、流量調整バルブ７３、圧力制御バルブ７４、第１サーボバルブ９３、及び第２サーボバルブ９４を４つずつ制御しているが、図６では、省略して１つのみ示している。 The controller 11 controls the servo motor 60, the direction switching valve 82, the direction switching valve 72, the flow rate adjusting valve 73, the pressure control valve 74, the first servo valve 93, and the second servo valve 94 four by four. However, in FIG. 6, only one is omitted.
　＜２．動作＞
　次に、本実施の形態のプレス装置１の制御方法について説明する。
　なお、以下の説明では、いわゆるＲＴＭ工法におけるプレス加工について説明する。すなわち、炭素繊維で形作られたプリフォーム材３０１と溶融している熱硬化性樹脂が本実施の形態のプレス装置１によってプレス加工される。なお、熱硬化性樹脂としては、エポキシ、不飽和ポリエステル等が用いられる。
　図７は、本実施の形態のプレス装置１の制御方法を示すフロー図である。図８は、プレス加工の際の上金型１２ａの高さの時間変化のグラフを示す図である。図８では、上金型１２ａの位置がＧ１のグラフで示され、下金型１２ｂの位置がＧ２のグラフで示されている。 <2. Operation>
Next, the control method of the press apparatus 1 of this Embodiment is demonstrated.
In the following description, press working in the so-called RTM method will be described. That is, the preform material 301 formed of carbon fiber and the molten thermosetting resin are pressed by the press device 1 of the present embodiment. As the thermosetting resin, epoxy, unsaturated polyester, or the like is used.
FIG. 7 is a flowchart showing a control method of the press apparatus 1 of the present embodiment. FIG. 8 is a diagram showing a graph of the temporal change in the height of the upper die 12a during press working. In FIG. 8, the position of the upper mold 12a is indicated by a graph of G1, and the position of the lower mold 12b is indicated by a graph of G2.
　はじめに、予め炭素繊維が成形品の形状に形作られたプリフォーム材３０１が下金型１２ｂ上に載置される。
　次に、制御部１１は、ステップＳ１０において、４つのサーボモータ６０を駆動し、スライド５を成形領域（成形領域の上限位置ともいえる）まで下降させる（図８の時刻ｔ１～ｔ２参照）。 First, a preform material 301 in which carbon fibers are formed in the shape of a molded product in advance is placed on the lower mold 12b.
Next, in step S10, the control unit 11 drives the four servo motors 60 to lower the slide 5 to the molding region (also referred to as the upper limit position of the molding region) (see times t1 to t2 in FIG. 8).
　そして、スライド５が成形領域に達すると、ステップＳ２０において、制御部１１は、スライド保持部８のポンプ８３および方向切換バルブ８２を制御して、嵌合部８０を４つのヘリカルギヤ６２ａのそれぞれの歯６２１の間に嵌合させる。これによって、伝達機構６６の固定が行われる。
　伝達機構６６の固定によってスライド５の駆動が一時的に固定されると、ステップＳ３０において、制御部１１は、サーボモータ６０への通電を停止する。 When the slide 5 reaches the forming region, in step S20, the control unit 11 controls the pump 83 and the direction switching valve 82 of the slide holding unit 8 so that the fitting unit 80 has the respective teeth of the four helical gears 62a. Fit between 621. As a result, the transmission mechanism 66 is fixed.
When the drive of the slide 5 is temporarily fixed by fixing the transmission mechanism 66, the control unit 11 stops energization of the servo motor 60 in step S30.
　なお、図８に示す距離ｄ１は、スライド５が成形領域に達するまでのストロークを示す。また、距離ｄ２（所定の高さの一例）が、下金型１２ｂからの上金型１２ａの距離を示す。この下金型１２ｂからの距離ｄ２が成形領域であり、成形荷重を付与することによってプレス成形が行われる領域のことである。この距離ｄ２において、傾き補正部９の当接部９０がスライド５の下面５ｓに当接する。 Note that the distance d1 shown in FIG. 8 indicates a stroke until the slide 5 reaches the forming region. A distance d2 (an example of a predetermined height) indicates a distance from the lower mold 12b to the upper mold 12a. The distance d2 from the lower mold 12b is a molding region, which is a region where press molding is performed by applying a molding load. At this distance d2, the contact portion 90 of the inclination correction portion 9 contacts the lower surface 5s of the slide 5.
　次に、ステップＳ３５において、スライド５が停止した状態で、熱硬化性樹脂が上金型１２ａと下金型１２ｂの間に注入される。図１に示すように、上金型１２ａには、熱硬化性樹脂を注入するための注入路４００が形成されており、熱硬化性樹脂は、注入路４００を通して供給される。
　次に、ステップＳ４０において、制御部１１は、荷重付与部７のポンプ７５、方向切換バルブ７２、流量調整バルブ７３および圧力制御バルブ７４を制御し、スライド５内の４つの油圧シリンダ７１を駆動してスライド５を所望の作動圧で下方に移動させる。このようにスライド５に所望の作動圧で下方に移動することによって上金型１２ａおよび下金型１２ｂの間のプリフォーム材３０１と熱硬化性樹脂に成形荷重が付与され、プリフォーム材３０１と熱硬化性樹脂が上金型１２ａと下金型１２ｂの間で加圧される。この加圧によってプリフォーム材３０１と熱硬化性樹脂の成形が行われる。なお、図８に示す距離ｄ３が荷重成形時のスライド５の下方への移動を示す。また、図８では、距離ｄ３は誇張して記載している。 Next, in step S35, the thermosetting resin is injected between the upper mold 12a and the lower mold 12b with the slide 5 stopped. As shown in FIG. 1, an injection path 400 for injecting a thermosetting resin is formed in the upper mold 12 a, and the thermosetting resin is supplied through the injection path 400.
Next, in step S <b> 40, the control unit 11 controls the pump 75, the direction switching valve 72, the flow rate adjustment valve 73 and the pressure control valve 74 of the load application unit 7 to drive the four hydraulic cylinders 71 in the slide 5. The slide 5 is moved downward with a desired operating pressure. Thus, by moving the slide 5 downward at a desired operating pressure, a molding load is applied to the preform material 301 and the thermosetting resin between the upper mold 12a and the lower mold 12b, and the preform material 301 The thermosetting resin is pressurized between the upper mold 12a and the lower mold 12b. By this pressurization, the preform material 301 and the thermosetting resin are molded. Note that the distance d3 shown in FIG. 8 indicates the downward movement of the slide 5 during load forming. In FIG. 8, the distance d3 is exaggerated.
　次に、ステップＳ５０において、加圧状態が所定時間保持される（図８の時刻ｔ３～ｔ４参照）。尚、図８では、上金型１２ａの高さは一定になっているが、所定時間保持している間に樹脂が冷却されて体積が小さくなると、それに伴いスライド５は若干下降する。
　上記ステップＳ４０とステップＳ５０の間、制御部１１は、傾き補正部９のポンプ９５および４組の第１サーボバルブ９３並びに第２サーボバルブ９４を制御することによって油圧シリンダ９１を駆動し、スライド５を所定以下の傾きに保つように制御が行われる。 Next, in step S50, the pressurized state is maintained for a predetermined time (see times t3 to t4 in FIG. 8). In FIG. 8, the height of the upper mold 12a is constant. However, when the resin is cooled and the volume is reduced while being held for a predetermined time, the slide 5 is slightly lowered accordingly.
Between step S40 and step S50, the control unit 11 drives the hydraulic cylinder 91 by controlling the pump 95 and the four sets of the first servo valve 93 and the second servo valve 94 of the tilt correction unit 9, and the slide 5 The control is performed so as to keep the inclination below a predetermined inclination.
　次に、ステップＳ６０において、制御部１１は、荷重付与部７の方向切換バルブ７２、流量調整バルブ７３および圧力制御バルブ７４を制御し、スライド５への荷重の付与を停止する。
　次に、ステップＳ６０において、制御部１１は、サーボモータ６０への通電を行う。
　次に、ステップＳ７０において、制御部１１は、スライド保持部８のポンプ８３および方向切換バルブ８２を制御することによって油圧シリンダ８１を駆動し、嵌合部８０をヘリカルギヤ６２ａの歯６２１の間から離間させる。これによって、伝達機構６６の固定が解除される。
　次に、ステップＳ８０において、制御部１１は、サーボモータ６０を制御し、スライド５を元の位置まで上昇させる（図８の時刻ｔ４～ｔ５参照）。
　そして、プレス加工が終了した加工済品が取り出され、次のプレス加工が行われる。 Next, in step S <b> 60, the control unit 11 controls the direction switching valve 72, the flow rate adjustment valve 73 and the pressure control valve 74 of the load application unit 7, and stops applying the load to the slide 5.
Next, in step S <b> 60, the control unit 11 energizes the servo motor 60.
Next, in step S70, the control unit 11 drives the hydraulic cylinder 81 by controlling the pump 83 and the direction switching valve 82 of the slide holding unit 8, and separates the fitting unit 80 from between the teeth 621 of the helical gear 62a. Let Thereby, the fixing of the transmission mechanism 66 is released.
Next, in step S80, the control unit 11 controls the servo motor 60 to raise the slide 5 to the original position (see times t4 to t5 in FIG. 8).
Then, the processed product after the press work is taken out, and the next press work is performed.
　（実施の形態２）
　以下に、本発明に係る実施の形態２におけるプレス装置１００について説明する。本実施の形態２のプレス装置１００は、実施の形態１のプレス装置１と比較して、荷重付与部およびスライド保持部の構成が異なっている。尚、本実施の形態２に説明において、実施の形態１と同様の構成については実施の形態１と同一の符号を付し適宜説明を省略する。 (Embodiment 2)
Below, the press apparatus 100 in Embodiment 2 which concerns on this invention is demonstrated. The press device 100 according to the second embodiment is different from the press device 1 according to the first embodiment in the configuration of the load applying unit and the slide holding unit. In the description of the second embodiment, the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the description thereof is omitted as appropriate.
　＜１．構成＞
　図９は、本発明にかかる実施の形態のプレス装置１００の構成を示す模式図である。
　本実施の形態のプレス装置１００は、ベッド２と、アプライト３と、クラウン４と、スライド１０５と、スライド駆動部６と、荷重付与部１０７と、スライド保持部１０８と、傾き補正部９と、ボルスタ１０と、制御部１１（図１０（ａ）参照）と、を備える。 <1. Configuration>
FIG. 9 is a schematic diagram showing the configuration of the press device 100 according to the embodiment of the present invention.
The press device 100 according to the present embodiment includes a bed 2, an upright 3, a crown 4, a slide 105, a slide driving unit 6, a load applying unit 107, a slide holding unit 108, an inclination correcting unit 9, A bolster 10 and a control unit 11 (see FIG. 10A) are provided.
　（１－１．スライド保持部）
　図１０（ａ）および図１０（ｂ）は、本実施の形態のスライド保持部１０８の構成を示す図である。
　プレス装置１００のスライド保持部１０８は、被嵌合部１８１と、被嵌合部１８１に嵌合する嵌合部１８２と、嵌合部１８２を被嵌合部１８１に向かって移動する移動部８６を有している。被嵌合部１８１と嵌合部１８２と移動部８６は、４組設けられている。移動部８６の構成は、実施の形態１と同様であり、油圧シリンダ８１と、油圧シリンダ８１を駆動する保持用油圧回路８７と、を有する。 (1-1. Slide holding part)
FIG. 10A and FIG. 10B are diagrams showing the configuration of the slide holding unit 108 of the present embodiment.
The slide holding unit 108 of the press device 100 includes a fitted part 181, a fitting part 182 fitted to the fitted part 181, and a moving part 86 that moves the fitting part 182 toward the fitted part 181. have. Four sets of the fitted portion 181, the fitting portion 182, and the moving portion 86 are provided. The configuration of the moving unit 86 is the same as that of the first embodiment, and includes a hydraulic cylinder 81 and a holding hydraulic circuit 87 that drives the hydraulic cylinder 81.
　被嵌合部１８１は、アプライト３のスライド１０５側の側面３ａに配置されている。被嵌合部１８１は、アプライト３の側面３ａに上下方向に沿って設けられた略鋸歯形状の部材であって、スライド１０５側に凹部１８１ａと凸部１８１ｂを有している。凹部１８１ａと凸部１８１ｂは、鉛直方向に沿って交互に形成されている。
　本実施の形態では、スライド本体１０５ａと、スライド本体１０５ａの下側に配置された金型取付板１０５ｂとを有している。この金型取付板１０５ｂの下面１０５ｓ（図１１参照）に上金型１２ａが取り付けられている。 The fitted portion 181 is disposed on the side surface 3 a of the upright 3 on the slide 105 side. The fitted portion 181 is a substantially serrated member provided on the side surface 3a of the upright 3 along the vertical direction, and has a concave portion 181a and a convex portion 181b on the slide 105 side. The concave portions 181a and the convex portions 181b are alternately formed along the vertical direction.
In this Embodiment, it has the slide main body 105a and the metal mold | die attachment plate 105b arrange | positioned under the slide main body 105a. The upper mold 12a is mounted on the lower surface 105s (see FIG. 11) of the mold mounting plate 105b.
　油圧シリンダ８１は、スライド本体１０５ａに設けられている。詳細には、油圧シリンダ８１は、そのピストンロッド８１ｃがアプライト３側に向かって水平方向に伸びるようにスライド本体１０５ａの側面に配置されている。嵌合部１８２は、油圧シリンダ８１のピストンロッド８１ｃの先端に取り付けられている。嵌合部１８２の先端形状は、凹部１８１ａに対応するように形成されている。 The hydraulic cylinder 81 is provided on the slide body 105a. Specifically, the hydraulic cylinder 81 is arranged on the side surface of the slide body 105a so that its piston rod 81c extends in the horizontal direction toward the upright 3 side. The fitting portion 182 is attached to the tip of the piston rod 81 c of the hydraulic cylinder 81. The tip shape of the fitting portion 182 is formed so as to correspond to the concave portion 181a.
　スライド１０５が成形領域まで下降すると、制御部１１は、保持用油圧回路８７を制御してピストンロッド８１ｃをシリンダチューブ８１ａから伸ばす。詳細には、第２接続路８４ｂと第３接続路８４ｃを接続し第１接続路８４ａと排油路８４ｄを接続するように方向切換バルブ８２が切り換えられる。この状態で、ポンプ８３が作動されると、第２空間８１ｅ側に作動油が供給されてピストンロッド８１ｃが被嵌合部１８１側に伸びる。このピストンロッド８１ｃの移動によって、嵌合部１８２が、被嵌合部１８１の凹部１８１ａに向かって移動して凹部１８１ａに嵌合する。これによって、スライド本体１０５ａの位置が固定される。 When the slide 105 is lowered to the molding region, the control unit 11 controls the holding hydraulic circuit 87 to extend the piston rod 81c from the cylinder tube 81a. Specifically, the direction switching valve 82 is switched so that the second connection path 84b and the third connection path 84c are connected and the first connection path 84a and the oil discharge path 84d are connected. When the pump 83 is operated in this state, the hydraulic oil is supplied to the second space 81e side, and the piston rod 81c extends to the fitted portion 181 side. By the movement of the piston rod 81c, the fitting portion 182 moves toward the concave portion 181a of the fitted portion 181 and is fitted into the concave portion 181a. As a result, the position of the slide body 105a is fixed.
　一方、嵌合部１８２を被嵌合部１８１から離間させる際には、第１接続路８４ａと第３接続路８４ｃを接続し第２接続路８４ｂと排油路８４ｄを接続するように方向切換バルブ８２が切り替えられてポンプ８３が駆動制御される。これによって第１空間８１ｄに作動油が供給されてピストンロッド８１ｃが縮み嵌合部１８２が被嵌合部１８１から離間する。 On the other hand, when the fitting portion 182 is separated from the fitted portion 181, the direction is switched so that the first connection path 84 a and the third connection path 84 c are connected and the second connection path 84 b and the oil drainage path 84 d are connected. The valve 82 is switched and the pump 83 is driven and controlled. As a result, hydraulic oil is supplied to the first space 81d, the piston rod 81c is contracted, and the fitting portion 182 is separated from the fitted portion 181.
　（１－２．荷重付与部）
　図１１は、本実施の形態の荷重付与部１０７の構成を示す図である。
　本実施の形態の荷重付与部１０７は、スライド１０５内に設けられている４つの油圧シリンダ１７１と、それぞれの油圧シリンダ１７１を駆動するための４つの荷重用油圧回路７８と、を有する。荷重用油圧回路７８は、実施の形態１と同様である。 (1-2. Load application part)
FIG. 11 is a diagram illustrating a configuration of the load applying unit 107 according to the present embodiment.
The load application unit 107 according to the present embodiment includes four hydraulic cylinders 171 provided in the slide 105 and four load hydraulic circuits 78 for driving the respective hydraulic cylinders 171. The load hydraulic circuit 78 is the same as that of the first embodiment.
　油圧シリンダ１７１は、鉛直方向に配置されたシリンダチューブ１７１ａと、シリンダチューブ１７１ａ内を鉛直方向に移動可能なピストン１７１ｂと、ピストン１７１ｂから下方に向かって設けられたピストンロッド１７１ｃと、を有する。すなわち、ピストンロッド１７１ｃは、シリンダチューブ１７１ａから下方に向かって伸張する。そして、ピストンロッド１７１ｃの下端には、スライド１０５の金型取付板１０５ｂが取り付けられている。また、本実施の形態２では、実施の形態１と比較してピストン１７１ｂは、プランジャ６４とは接続されていない。すなわち、本実施の形態では、プリフォーム材３０１と熱硬化性樹脂に成形荷重を付与する際には、スライド本体１０５ａは移動せず金型取付板１０５ｂが所定の圧力で下方に移動しプリフォーム材３０１と熱硬化性樹脂に成形荷重が付与される。 The hydraulic cylinder 171 includes a cylinder tube 171a arranged in the vertical direction, a piston 171b movable in the cylinder tube 171a in the vertical direction, and a piston rod 171c provided downward from the piston 171b. That is, the piston rod 171c extends downward from the cylinder tube 171a. A die mounting plate 105b of the slide 105 is attached to the lower end of the piston rod 171c. In the second embodiment, the piston 171b is not connected to the plunger 64 as compared with the first embodiment. That is, in this embodiment, when a molding load is applied to the preform material 301 and the thermosetting resin, the slide main body 105a does not move, and the mold mounting plate 105b moves downward with a predetermined pressure, and the preform is moved. A molding load is applied to the material 301 and the thermosetting resin.
　ピストン１７１ｂによってシリンダチューブ１７１ａ内の空間は、下方空間１７１ｄと上方空間１７１ｅに分けられる。下方空間１７１ｄに荷重用油圧回路７８の第１接続路７６ａが接続され、上方空間１７１ｅに荷重用油圧回路７８の第２接続路７６ｂが接続されている。
　成形荷重を付与する際には、第２接続路７６ｂと第３接続路７６ｃを接続し第１接続路７６ａと排油路７６ｄを接続するように方向切換バルブ７２が切り替えられる。この状態で、ポンプ７５を駆動することによって、上方空間１７１ｅに作動油が供給されてピストン１７１ｂおよびピストンロッド１７１ｃが下方に押され、金型取付板１０５ｂに成形荷重が付与される。 The space in the cylinder tube 171a is divided into a lower space 171d and an upper space 171e by the piston 171b. The first connection path 76a of the load hydraulic circuit 78 is connected to the lower space 171d, and the second connection path 76b of the load hydraulic circuit 78 is connected to the upper space 171e.
When the molding load is applied, the direction switching valve 72 is switched so that the second connection path 76b and the third connection path 76c are connected and the first connection path 76a and the oil discharge path 76d are connected. By driving the pump 75 in this state, hydraulic oil is supplied to the upper space 171e, the piston 171b and the piston rod 171c are pushed downward, and a molding load is applied to the mold mounting plate 105b.
　一方、第１接続路７６ａと第３接続路７６ｃを接続し第２接続路７６ｂと排油路７６ｄを接続するように方向切換バルブ７２が切り替えられポンプ７５が駆動されると、ピストン１７１ｂおよびピストンロッド１７１ｃが引き上げられて金型取付板１０５ｂがスライド本体１０５ａに当接するように引き上げられる。 On the other hand, when the direction switching valve 72 is switched and the pump 75 is driven so as to connect the first connection path 76a and the third connection path 76c and connect the second connection path 76b and the oil discharge path 76d, the piston 171b and the piston The rod 171c is pulled up and the mold mounting plate 105b is pulled up so as to contact the slide body 105a.
　＜２．動作＞
　次に、本実施の形態のプレス装置１００の制御方法について説明する。図１２は、本実施の形態のプレス装置１００の制御方法を示すフロー図である。
　予め炭素繊維が成形品の形状に形作られたプリフォーム材３０１が下金型１２ｂ上に載置された後、制御部１１は、ステップＳ１１０において、４つのサーボモータ６０を駆動してスライド１０５を成形領域まで下降させる。また、スライド１０５が成形領域に達すると、スライド１０５の下面１０５ｓに傾き補正部９の当接部９０が当接する。
　そして、スライド１０５が成形領域に達すると、ステップＳ１２０において、制御部１１は、保持用油圧回路８７の方向切換バルブ８２およびポンプ８３を制御して、油圧シリンダ８１を駆動する。すなわち、ピストンロッド８１ｃをシリンダチューブ８１ａから伸ばして、嵌合部１８２を被嵌合部１８１の凹部１８１ａに嵌合させる。これによってスライド本体１０５ａの位置が固定される。なお、サーボモータ６０を用いてスライド１０５を下降させるため、嵌合部１８２が凹部１８１ａに対向する位置で精度良くスライド１０５を停止させることができる。 <2. Operation>
Next, the control method of the press apparatus 100 of this Embodiment is demonstrated. FIG. 12 is a flowchart showing a control method of the press apparatus 100 of the present embodiment.
After the preform material 301 in which the carbon fiber is formed in the shape of the molded product in advance is placed on the lower mold 12b, the control unit 11 drives the four servo motors 60 to move the slide 105 in step S110. Lower to molding area. Further, when the slide 105 reaches the forming region, the contact portion 90 of the inclination correction unit 9 contacts the lower surface 105 s of the slide 105.
When the slide 105 reaches the molding region, the control unit 11 controls the direction switching valve 82 and the pump 83 of the holding hydraulic circuit 87 to drive the hydraulic cylinder 81 in step S120. That is, the piston rod 81c is extended from the cylinder tube 81a, and the fitting portion 182 is fitted into the concave portion 181a of the fitted portion 181. As a result, the position of the slide body 105a is fixed. Since the slide 105 is lowered using the servo motor 60, the slide 105 can be accurately stopped at a position where the fitting portion 182 faces the concave portion 181a.
　次に、ステップＳ１３０において、制御部１１は、サーボモータ６０への通電を停止する。
　次に、ステップＳ１３５において、スライド５が停止した状態で、熱硬化性樹脂が注入路４００を通して上金型１２ａと下金型１２ｂの間に注入される。
　次に、ステップＳ１４０において、制御部１１は、荷重付与部１０７の方向切換バルブ７２、流量調整バルブ７３および圧力制御バルブ７４を制御し、スライド５内の４つの油圧シリンダ１７１を駆動して金型取付板１０５ｂを所定の圧力で下方に移動させる。この金型取付板１０５ｂの所定の圧力での移動によって、上金型１２ａおよび下金型１２ｂの間のプリフォーム材３０１および熱硬化性樹脂に成形荷重が付加され、プリフォーム材３０１および熱硬化性樹脂が上金型１２ａと下金型１２ｂの間で加圧される。この加圧によってプリフォーム材３０１と熱硬化性樹脂の成形が行われる。 Next, in step S <b> 130, the control unit 11 stops energizing the servo motor 60.
Next, in step S135, with the slide 5 stopped, the thermosetting resin is injected between the upper mold 12a and the lower mold 12b through the injection path 400.
Next, in step S140, the control unit 11 controls the direction switching valve 72, the flow rate adjustment valve 73, and the pressure control valve 74 of the load applying unit 107, and drives the four hydraulic cylinders 171 in the slide 5 to mold. The mounting plate 105b is moved downward with a predetermined pressure. Due to the movement of the mold mounting plate 105b at a predetermined pressure, a molding load is applied to the preform material 301 and the thermosetting resin between the upper mold 12a and the lower mold 12b, and the preform material 301 and the thermosetting resin are cured. Resin is pressurized between the upper mold 12a and the lower mold 12b. By this pressurization, the preform material 301 and the thermosetting resin are molded.
　次に、ステップＳ１５０において、加圧状態が所定時間保持される。
　上記ステップＳ１４０とステップＳ１５０の間、制御部１１は、リニアセンサ９２からの情報に基づいて傾き補正部９のポンプ９５および４組の第１サーボバルブ９３並びに第２サーボバルブ９４を制御することによって油圧シリンダ９１を駆動し、スライド５を所定以下の傾きに保つ。 Next, in step S150, the pressurized state is maintained for a predetermined time.
Between step S140 and step S150, the control unit 11 controls the pump 95 and the four sets of the first servo valve 93 and the second servo valve 94 of the inclination correction unit 9 based on information from the linear sensor 92. The hydraulic cylinder 91 is driven to keep the slide 5 at a predetermined inclination or less.
　所定時間が経過すると、制御部１１は、荷重付与部１０７の方向切換バルブ７２、流量調整バルブ７３および圧力制御バルブ７４を制御し、金型取付板１０５ｂへの荷重の付与を停止する。
　次に、ステップＳ１６０において、制御部１１は、サーボモータ６０への通電を行う。
　次に、ステップＳ１７０において、制御部１１は、スライド保持部１０８のポンプ８３および方向切換バルブ８２を制御することによって油圧シリンダ８１を駆動し、嵌合部１８２を凹部１８１ａから離間させる。これによって、スライド本体１０５ａの固定が解除される。 When the predetermined time elapses, the control unit 11 controls the direction switching valve 72, the flow rate adjustment valve 73, and the pressure control valve 74 of the load applying unit 107, and stops applying the load to the mold attachment plate 105b.
Next, in step S <b> 160, the control unit 11 energizes the servo motor 60.
Next, in step S170, the control unit 11 drives the hydraulic cylinder 81 by controlling the pump 83 and the direction switching valve 82 of the slide holding unit 108, thereby separating the fitting unit 182 from the recess 181a. Thereby, the fixation of the slide main body 105a is released.
　次に、ステップＳ１８０において、制御部１１は、サーボモータ６０を制御し、スライド１０５を元の位置まで上昇させる。
　そして、プレス加工が終了した加工済品が取り出され、次のプレス加工が行われる。 Next, in step S180, the control unit 11 controls the servo motor 60 to raise the slide 105 to the original position.
Then, the processed product after the press work is taken out, and the next press work is performed.
　（実施の形態３）
　以下に、本発明に係る実施の形態３におけるプレス装置２００について説明する。なお、本実施の形態３に説明において、実施の形態１と同様の構成については、実施の形態１と同じ符号を付し、適宜説明を省略する。
　＜１．構成＞
　図１３は、本実施の形態のプレス装置２００の構成を示す正面図である。
　本実施の形態のプレス装置２００は、ベッド２と、クラウン４と、スライド５と、スライド駆動部２０６と、荷重付与部２０７と、スライド保持部２０８と、傾き補正部９と、ボルスタ１０と、制御部１１と、を備える。 (Embodiment 3)
Below, the press apparatus 200 in Embodiment 3 which concerns on this invention is demonstrated. In the description of the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted as appropriate.
<1. Configuration>
FIG. 13 is a front view showing the configuration of the press apparatus 200 of the present embodiment.
The press device 200 according to the present embodiment includes a bed 2, a crown 4, a slide 5, a slide driving unit 206, a load applying unit 207, a slide holding unit 208, an inclination correcting unit 9, a bolster 10, And a control unit 11.
　（１－１．スライド駆動部）
　スライド駆動部２０６は、サーボモータ２６０と、サーボモータ２６０の駆動をスライド５に伝達する伝達機構２６６を４組有する。それぞれの伝達機構２６６は、ボールネジ部２６１および支持部２６２を有する。４本のボールネジ部２６１は、ベッド２に鉛直方向に向かって回転可能に配置されており、クラウン４の４隅を挿通している。クラウン４の上下であって、ボールネジ部２６１の周囲には軸受２６３が設けられている。本実施の形態のプレス装置２００では、実施の形態１のプレス装置１と異なり、アプライト３が設けられておらず、スライド駆動部２０６によってクラウン４が支持されている。 (1-1. Slide drive unit)
The slide drive unit 206 includes four sets of a servo motor 260 and a transmission mechanism 266 that transmits the drive of the servo motor 260 to the slide 5. Each transmission mechanism 266 includes a ball screw portion 261 and a support portion 262. The four ball screw portions 261 are disposed on the bed 2 so as to be rotatable in the vertical direction, and are inserted through the four corners of the crown 4. Bearings 263 are provided above and below the crown 4 and around the ball screw portion 261. In the press device 200 of the present embodiment, unlike the press device 1 of the first embodiment, the upright 3 is not provided, and the crown 4 is supported by the slide drive unit 206.
　ボールネジ部２６１は、周面にネジ形状２６１ａが形成されている。クラウン４の下側であって軸受２６３の下側には、ボールネジ部２６１によってクラウン４を支持するための支持部２６２が固定されている。支持部２６２は上下方向に貫通孔２６２ａを有し、貫通孔２６２ａの内周面には、ネジ形状が形成されており、ボールネジ部２６１のネジ形状２６１ａと螺合している。 The ball screw portion 261 has a screw shape 261a formed on the peripheral surface. A support portion 262 for supporting the crown 4 by a ball screw portion 261 is fixed below the crown 4 and below the bearing 263. The support portion 262 has a through hole 262a in the vertical direction, and a screw shape is formed on the inner peripheral surface of the through hole 262a, and is screwed with the screw shape 261a of the ball screw portion 261.
　サーボモータ２６０は、その駆動軸２６０ａが鉛直方向を向くように配置されている。駆動軸２６０ａは、ボールネジ部２６１の下端と結合されている。
　サーボモータ２６０を回転することによってボールネジ部２６１も回転し、ボールネジ部２６１と螺合している支持部２６２およびクラウン４が上下方向に移動する。
　このように、サーボモータ２６０の駆動によってクラウン４が上下方向に移動するため、クラウン４に吊下されているスライド５も上下方向に移動する。 The servo motor 260 is disposed such that the drive shaft 260a faces the vertical direction. The drive shaft 260a is coupled to the lower end of the ball screw portion 261.
By rotating the servo motor 260, the ball screw portion 261 is also rotated, and the support portion 262 and the crown 4 screwed with the ball screw portion 261 are moved in the vertical direction.
Thus, since the crown 4 moves in the vertical direction by driving the servo motor 260, the slide 5 suspended from the crown 4 also moves in the vertical direction.
　すなわち、プレス成形を行う際には、サーボモータ２６０の駆動によってスライド５は成形領域に達する高さまで下降する。
　上記のように本実施の形態３では、実施の形態１のサーボモータ６０の代わりにサーボモータ２６０が配置されているため、制御部１１は、サーボモータ２６０を制御する。 That is, when press molding is performed, the slide 5 is lowered to a height that reaches the molding region by driving the servo motor 260.
As described above, in the third embodiment, since the servo motor 260 is arranged instead of the servo motor 60 of the first embodiment, the control unit 11 controls the servo motor 260.
　（１－２．スライド保持部）
　図１４（ａ）、（ｂ）は、スライド保持部２０８の構成を示す図である。
　スライド保持部２０８は、ボールネジ部２６１の上端に設けられた被嵌合部２８１と、被嵌合部２８１に嵌合する嵌合部２８２と、嵌合部２８２を被嵌合部２８１に向かって移動する移動部８６と、を有する。
　被嵌合部２８１は、ボールネジ部２６１の上端にボールネジ部２６１と同軸で設けられた円柱部２８１ａと、上下方向に一定の間隔を開けて形成された円環状突起部２８１ｂと、を有する。円環状突起部２８１ｂは、円柱部２８１ａの径方向外側に向かって突出している。円環状突起部２８１ｂは、円柱部２８１ａの一周にわたって形成されている。円環状突起部２８１ｂは、水平方向と平行に形成されている。上下方向に隣り合う円環状突起部２８１ｂの間には、凹部２８１ｃが形成されている。 (1-2. Slide holding part)
14A and 14B are diagrams showing the configuration of the slide holding unit 208. FIG.
The slide holding part 208 includes a fitted part 281 provided at the upper end of the ball screw part 261, a fitting part 282 fitted to the fitted part 281, and the fitting part 282 toward the fitted part 281. And a moving unit 86 that moves.
The fitted portion 281 has a cylindrical portion 281a provided coaxially with the ball screw portion 261 at the upper end of the ball screw portion 261, and an annular projection portion 281b formed with a certain interval in the vertical direction. The annular protrusion 281b protrudes outward in the radial direction of the cylindrical portion 281a. The annular projecting portion 281b is formed over one circumference of the cylindrical portion 281a. The annular protrusion 281b is formed in parallel with the horizontal direction. A recess 281c is formed between the annular protrusions 281b adjacent in the vertical direction.
　図１５は、嵌合部２８２の平面図である。嵌合部２８２は、半円環状の部材である。被嵌合部２８１の周囲を囲むように２つの嵌合部２８２が配置されている。２つの嵌合部２８２は対向して配置されている。
　嵌合部２８２は、移動部８６の油圧シリンダ８１のピストンロッド８１ｃの先端に固定されている。嵌合部２８２は、図１４（ａ）に示すように、その内側に凹凸形状を有している、すなわち、嵌合部２８２は、円環の径方向内側に向かって突出した２つの凸部２８２ａを有している、２つの凸部２８２ａの間には、凹部２８２ｂが形成されている。 FIG. 15 is a plan view of the fitting portion 282. The fitting part 282 is a semi-annular member. Two fitting portions 282 are arranged so as to surround the periphery of the fitted portion 281. The two fitting portions 282 are arranged to face each other.
The fitting part 282 is fixed to the tip of the piston rod 81 c of the hydraulic cylinder 81 of the moving part 86. As shown in FIG. 14A, the fitting portion 282 has an uneven shape inside, that is, the fitting portion 282 has two convex portions protruding toward the inner side in the radial direction of the ring. A concave portion 282b is formed between the two convex portions 282a having 282a.
　移動部８６は、実施の形態１と同様の構成であり、油圧シリンダ８１および保持用油圧回路８７を有している。移動部８６は、嵌合部２８２ごとに設けられている。油圧シリンダ８１は、ピストンロッド８１ｃが水平移動するようにクラウン４に固定されている。また、ピストンロッド８１ｃは、シリンダチューブ８１ａから被嵌合部２８１に向かって伸張する。ピストンロッド８１ｃの先端には、嵌合部２８２が取付けられている。尚、図１４（ｂ）では、保持用油圧回路８７は図示を省略している。 The moving unit 86 has the same configuration as that of the first embodiment, and includes a hydraulic cylinder 81 and a holding hydraulic circuit 87. The moving part 86 is provided for each fitting part 282. The hydraulic cylinder 81 is fixed to the crown 4 so that the piston rod 81c moves horizontally. Further, the piston rod 81c extends from the cylinder tube 81a toward the fitted portion 281. A fitting portion 282 is attached to the tip of the piston rod 81c. In FIG. 14B, the holding hydraulic circuit 87 is not shown.
　スライド５が成形領域まで下降すると、制御部１１は、保持用油圧回路８７を制御してピストンロッド８１ｃをシリンダチューブ８１ａから伸ばす。詳細には、第２接続路８４ｂと第３接続路８４ｃを接続し第１接続路８４ａと排油路８４ｄを接続するように方向切換バルブ８２が切換られる。この状態で、ポンプ８３が作動されると、第２空間８１ｅ側に作動油が供給されてピストンロッド８１ｃが被嵌合部１８１側に伸びる。このピストンロッド８１ｃの移動によって、図１４（ｂ）に示すように２つの嵌合部２８２が被嵌合部２８１を挟むように移動して被嵌合部２８１に嵌合する。詳細には、嵌合部２８２の凸部２８２ａが、被嵌合部２８１の凹部２８１ｃに嵌り、嵌合部２８２の凹部２８２ｂに被嵌合部２８１の円環状突起部２８１ｂが嵌る。 When the slide 5 is lowered to the molding region, the control unit 11 controls the holding hydraulic circuit 87 to extend the piston rod 81c from the cylinder tube 81a. Specifically, the direction switching valve 82 is switched so that the second connection path 84b and the third connection path 84c are connected and the first connection path 84a and the oil discharge path 84d are connected. When the pump 83 is operated in this state, the hydraulic oil is supplied to the second space 81e side, and the piston rod 81c extends to the fitted portion 181 side. By the movement of the piston rod 81c, as shown in FIG. 14B, the two fitting portions 282 move so as to sandwich the fitted portion 281 and are fitted to the fitted portion 281. Specifically, the convex portion 282 a of the fitting portion 282 fits into the concave portion 281 c of the fitted portion 281, and the annular protrusion 281 b of the fitted portion 281 fits into the concave portion 282 b of the fitting portion 282.
　このようにして、ボールネジ部２６１がスライド保持部２０８によって固定される。すなわち、成形領域までスライド５を下降させてボールネジ部２６１を固定することによって、スライド５を成形領域の高さに機械的に保持できる。
　一方、嵌合部１８２を被嵌合部１８１から離間させる際には、第１接続路８４ａと第３接続路８４ｃを接続し第２接続路８４ｂと排油路８４ｄを接続するように方向切換バルブ８２が切り替えられてポンプ８３が駆動制御される。これによって第１空間８１ｄに作動油が供給されてピストンロッド８１ｃが縮み嵌合部１８２が被嵌合部１８１から離間する。 In this way, the ball screw portion 261 is fixed by the slide holding portion 208. That is, the slide 5 can be mechanically held at the height of the molding region by lowering the slide 5 to the molding region and fixing the ball screw portion 261.
On the other hand, when the fitting portion 182 is separated from the fitted portion 181, the direction is switched so that the first connection path 84 a and the third connection path 84 c are connected and the second connection path 84 b and the oil drainage path 84 d are connected. The valve 82 is switched and the pump 83 is driven and controlled. As a result, hydraulic oil is supplied to the first space 81d, the piston rod 81c is contracted, and the fitting portion 182 is separated from the fitted portion 181.
　（１－３．荷重付与部）
　図１６は、本実施の形態の荷重付与部の構成を示す図である。
　荷重付与部２０７は、４つの油圧シリンダ２７１と、各々の油圧シリンダ２７１を駆動する荷重用油圧回路７８と、各々の油圧シリンダ２７１の圧力をスライド５に伝達する荷重伝達機構２７２と、を有する。 (1-3. Load applying part)
FIG. 16 is a diagram illustrating a configuration of the load applying unit according to the present embodiment.
The load application unit 207 includes four hydraulic cylinders 271, a load hydraulic circuit 78 that drives each hydraulic cylinder 271, and a load transmission mechanism 272 that transmits the pressure of each hydraulic cylinder 271 to the slide 5.
　（１－３－１．油圧シリンダおよび油圧回路）
　油圧シリンダ２７１は、クラウン４に４つ配置されている。図１６では、クラウン４の手前側の２つの油圧シリンダ２７１が示されており、奥側にも２つ油圧シリンダ２７１が配置されている。
　各々の油圧シリンダ２７１は、水平方向に配置されたシリンダチューブ２７１ａと、シリンダチューブ２７１ａ内を水平方向に移動可能なピストン２７１ｂと、ピストン２７１ｂに接続されたピストンロッド２７１ｃと、を有する。ピストンロッド２７１ｃは、シリンダチューブ２７１ａからプレス装置２００の内側に向かって伸張する。 (1-3-1. Hydraulic cylinder and hydraulic circuit)
Four hydraulic cylinders 271 are arranged on the crown 4. In FIG. 16, two hydraulic cylinders 271 on the front side of the crown 4 are shown, and two hydraulic cylinders 271 are also arranged on the back side.
Each hydraulic cylinder 271 has a cylinder tube 271a arranged in the horizontal direction, a piston 271b that can move in the cylinder tube 271a in the horizontal direction, and a piston rod 271c connected to the piston 271b. The piston rod 271c extends from the cylinder tube 271a toward the inside of the press device 200.
　ピストン２７１ｂによってシリンダチューブ２７１ａ内の空間は、内側空間２７１ｄと外側空間２７１ｅに分けられる。内側空間２７１ｄに荷重用油圧回路７８の第１接続路７６ａが接続され、外側空間２７１ｅに荷重用油圧回路７８の第２接続路７６ｂが接続されている。
　制御部１１は、第２接続路７６ｂと第３接続路７６ｃを接続し、第１接続路７６ａと排油路７６ｄを接続するように方向切換バルブ７２を切換することによって外側空間２７１ｅに作動油が供給されるとともに内側空間２７１ｄから作動油が排出される。これにより、ピストンロッド２７１ｃが内側へと伸張する。 The space in the cylinder tube 271a is divided into an inner space 271d and an outer space 271e by the piston 271b. A first connection path 76a of the load hydraulic circuit 78 is connected to the inner space 271d, and a second connection path 76b of the load hydraulic circuit 78 is connected to the outer space 271e.
The control unit 11 connects the second connection path 76b and the third connection path 76c, and switches the direction switching valve 72 so as to connect the first connection path 76a and the oil discharge path 76d. Is supplied and hydraulic oil is discharged from the inner space 271d. As a result, the piston rod 271c extends inward.
　また制御部１１が、第１接続路７６ａと第３接続路７６ｃを接続して第２接続路７６ｂと排油路７６ｄを接続するように方向切換バルブ７２を切換することによって内側空間２７１ｄに作動油が供給されて外側空間２７１ｅから作動油が排出される。これにより、ピストンロッド２７１ｃがシリンダチューブ２７１ａ内へと引き込まれる。 Further, the control unit 11 operates in the inner space 271d by switching the direction switching valve 72 so as to connect the first connection path 76a and the third connection path 76c and connect the second connection path 76b and the oil discharge path 76d. Oil is supplied and hydraulic oil is discharged from the outer space 271e. Thereby, the piston rod 271c is drawn into the cylinder tube 271a.
　（１－３－２．荷重伝達機構）
　荷重伝達機構２７２は、ピストンロッド２７１ｃの水平方向の移動を上下方向の移動に変換してスライド５に伝達する。荷重伝達機構２７２は、プランジャ６４と、第１連結部材２７３と、第２連結部材２７８と、第３連結部材２７４とを有する。第１連結部材２７３と第２連結部材２７８と第３連結部材２７４は、細長い形状の部材である。
　第１連結部材２７３は、その一端においてピン５００を介してピストンロッド２７１ｃの先端２７１ｆに回動可能に連結されている。第１連結部材２７３は、その他端に設けられた第１連結部２７７ａにおいて、第２連結部材２７８の一端と回動可能に連結されている。 (1-3-2. Load transmission mechanism)
The load transmission mechanism 272 converts the movement of the piston rod 271 c in the horizontal direction into the movement in the vertical direction and transmits it to the slide 5. The load transmission mechanism 272 includes a plunger 64, a first connecting member 273, a second connecting member 278, and a third connecting member 274. The first connecting member 273, the second connecting member 278, and the third connecting member 274 are elongated members.
The first connecting member 273 is rotatably connected to the tip 271f of the piston rod 271c via a pin 500 at one end thereof. The first connecting member 273 is rotatably connected to one end of the second connecting member 278 at a first connecting portion 277a provided at the other end.
　第２連結部材２７８は、第１連結部材２７３とプランジャ６４の間を連結する。第２連結部材２７８は、その他端に設けられた第２連結部２７７ｂにおいてプランジャ６４の上端部６４ａと回動可能に連結している。
　第２連結部材２７８は、第２Ａ連結部材２７５と第２Ｂ連結部材２７６が連結して構成されている。第２Ａ連結部材２７５は、その一端に設けられた第１連結部２７７ａにおいて第１連結部材２７３および第３連結部材２７４と連結している。第２Ａ連結部材２７５は、その他端に設けられた中間連結部２７７ｄにおいて、第２Ｂ連結部材２７６と連結されている。第２Ｂ連結部材２７６は、その他端が第２連結部２７７ｂにおいてプランジャ６４の上端部に回動可能に連結されている。 The second connecting member 278 connects between the first connecting member 273 and the plunger 64. The second connecting member 278 is rotatably connected to the upper end portion 64a of the plunger 64 at a second connecting portion 277b provided at the other end.
The second connecting member 278 is configured by connecting a second A connecting member 275 and a second B connecting member 276. The 2nd A connection member 275 is connected with the 1st connection member 273 and the 3rd connection member 274 in the 1st connection part 277a provided in the end. The second A connecting member 275 is connected to the second B connecting member 276 at an intermediate connecting portion 277d provided at the other end. The other end of the second B connecting member 276 is rotatably connected to the upper end portion of the plunger 64 at the second connecting portion 277b.
　第３連結部材２７４は、第１連結部材２７３とクラウン４の間を連結している。第３連結部材２７４は、その一端に設けられた第１連結部２７７ａにおいて第１連結部材２７３と連結している。第３連結部材２７４は、その他端に設けられた第３連結部２７７ｃにおいてクラウン４に回動可能に連結している。
　また、第３連結部２７７ｃは、第２連結部２７７ｂの鉛直上方に配置されている。また、第１連結部２７７ａの鉛直方向における位置は、第２連結部２７７ｂと第３連結部２７７ｃの間に位置している。 The third connecting member 274 connects the first connecting member 273 and the crown 4. The third connecting member 274 is connected to the first connecting member 273 at a first connecting portion 277a provided at one end thereof. The third connecting member 274 is rotatably connected to the crown 4 at a third connecting portion 277c provided at the other end.
The third connecting portion 277c is disposed vertically above the second connecting portion 277b. Moreover, the position in the vertical direction of the 1st connection part 277a is located between the 2nd connection part 277b and the 3rd connection part 277c.
　プランジャ６４は、スライド５の上部に固定されており、クラウン４の下側に固定されたプランジャホルダ６５によって上下方向にガイドされる。
　図１７（ａ）および図１７（ｂ）は、油圧シリンダ２７１を駆動させた際の荷重伝達機構の動きを説明するための図である。
　第２接続路７６ｂと第３接続路７６ｃを接続して第１接続路７６ａと排油路７６ｄを接続するように方向切換バルブ７２を制御しポンプ７５を駆動すると、外側空間２７１ｅに作動油が供給されピストン２７１ｂが内側方向に移動し、ピストンロッド２７１ｃが内側に向かって移動する。図１７（ｂ）は、ピストンロッド２７１ｃが伸張した状態を示す図である。 The plunger 64 is fixed to the upper part of the slide 5 and is guided in the vertical direction by a plunger holder 65 fixed to the lower side of the crown 4.
FIGS. 17A and 17B are views for explaining the movement of the load transmission mechanism when the hydraulic cylinder 271 is driven.
When the direction switching valve 72 is controlled and the pump 75 is driven so that the second connection path 76b and the third connection path 76c are connected and the first connection path 76a and the oil discharge path 76d are connected, the hydraulic oil flows into the outer space 271e. The supplied piston 271b moves inward, and the piston rod 271c moves inward. FIG. 17B is a view showing a state where the piston rod 271c is extended.
　このピストンロッド２７１ｃの水平方向への移動によって、第１連結部材２７３は内側に押され、第１連結部２７７ａが装置内側方向へと移動する。この第１連結部２７７ａの内側への移動によって第２Ａ連結部材２７５と第３連結部材２７４の間の角度が開く。これにより、第２Ａ連結部材２７５と第２Ｂ連結部材２７６を介して連結されているプランジャ６４がプランジャホルダ６５に沿って下方へと移動する、
　このように、油圧シリンダ２７１のピストンロッド２７１ｃが内側に移動する力が荷重伝達機構２７２によってスライド５に伝達され、上金型１２ａが下方に移動し上金型１２ａと下金型１２ｂの間のプリフォーム材３０１と熱硬化性樹脂に対して成形荷重を付与できる。 By the movement of the piston rod 271c in the horizontal direction, the first connecting member 273 is pushed inward, and the first connecting portion 277a moves in the device inner direction. The angle between the second A connecting member 275 and the third connecting member 274 is opened by the inward movement of the first connecting portion 277a. Thereby, the plunger 64 connected via the 2A connection member 275 and the 2B connection member 276 moves downward along the plunger holder 65.
In this way, the force that moves the piston rod 271c of the hydraulic cylinder 271 inward is transmitted to the slide 5 by the load transmission mechanism 272, and the upper mold 12a moves downward, so that the gap between the upper mold 12a and the lower mold 12b. A molding load can be applied to the preform material 301 and the thermosetting resin.
　また、第１接続路７６ａと第３接続路７６ｃを接続して第２接続路７６ｂと排油路７６ｄを接続するように方向切換バルブ７２を制御しポンプ７５を駆動すると、内側空間２７１ｄに作動油が供給されピストン２７１ｂが外側方向に移動し、ピストンロッド２７１ｃがシリンダチューブ２７１ａ内に引き込まれる。
　上述した第１連結部材２７３、第２連結部材２７８および第３連結部材２７４によって、いわゆるトグルリンク機構が構成されている。トグルリンク機構は、倍力機構であるため、油圧シリンダ２７１で発生する力を増幅してスライド５に伝達する。そのため、小さい油圧シリンダ２７１を使用することができ、使用する作動油の量も少なくなる。 Further, when the direction switching valve 72 is controlled to drive the pump 75 so that the first connection path 76a and the third connection path 76c are connected and the second connection path 76b and the oil discharge path 76d are connected, the inner space 271d is activated. Oil is supplied, the piston 271b moves outward, and the piston rod 271c is drawn into the cylinder tube 271a.
The first connecting member 273, the second connecting member 278, and the third connecting member 274 described above constitute a so-called toggle link mechanism. Since the toggle link mechanism is a booster mechanism, the force generated in the hydraulic cylinder 271 is amplified and transmitted to the slide 5. Therefore, a small hydraulic cylinder 271 can be used, and the amount of hydraulic oil to be used is also reduced.
　なお、図１６では、１つの油圧シリンダ２７１の荷重用油圧回路７８のみを示しているが、４つの油圧シリンダ２７１のそれぞれに荷重用油圧回路７８が設けられている。また、荷重用油圧回路７８の一部、ポンプ７５および作動油タンク７７などは４つの荷重用油圧回路７８に対して共通で用いられても良い。 In FIG. 16, only the load hydraulic circuit 78 of one hydraulic cylinder 271 is shown, but the load hydraulic circuit 78 is provided in each of the four hydraulic cylinders 271. Further, a part of the load hydraulic circuit 78, the pump 75, the hydraulic oil tank 77, and the like may be used in common for the four load hydraulic circuits 78.
　＜２．動作＞
　次に、本実施の形態のプレス装置２００の制御方法について説明する。図１８は、本実施の形態のプレス装置２００の制御方法を示すフロー図である。
　予め炭素繊維が成形品の形状に形作られたプリフォーム材３０１が下金型１２ｂ上に載置された後、制御部１１は、ステップＳ２１０において、４つのサーボモータ２６０を駆動してボールネジ部２６１を回転させることによってクラウン４ごとスライド５を成形領域に達する高さまで下降させる。また、スライド５が成形領域に達すると、スライド１０５の下面１０５ｓに傾き補正部９の当接部９０が当接する。 <2. Operation>
Next, the control method of the press apparatus 200 of this Embodiment is demonstrated. FIG. 18 is a flowchart showing a control method of the press apparatus 200 of the present embodiment.
After the preform material 301 in which carbon fibers are formed in the shape of the molded product in advance is placed on the lower mold 12b, the control unit 11 drives the four servo motors 260 in step S210 to drive the ball screw unit 261. To lower the slide 5 together with the crown 4 to a height that reaches the forming region. Further, when the slide 5 reaches the forming region, the contact portion 90 of the inclination correction unit 9 contacts the lower surface 105 s of the slide 105.
　そして、スライド５が成形領域に達すると、ステップＳ２２０において、制御部１１は、保持用油圧回路８７の方向切換バルブ８２およびポンプ８３を制御して、油圧シリンダ８１を駆動する。すなわち、ピストンロッド８１ｃをシリンダチューブ８１ａから伸長させて、嵌合部２８２を被嵌合部２８１に嵌合させる。これによってクラウン４の位置が固定される。なお、サーボモータ２６０を用いてクラウン４およびスライド５を下降させるため、嵌合部２８２の凸部２８２ａが被嵌合部２８１の凹部２８１ｃに対応する位置になるように精度良くクラウン４およびスライド１０５を停止させることができる。 When the slide 5 reaches the forming region, the control unit 11 controls the direction switching valve 82 and the pump 83 of the holding hydraulic circuit 87 to drive the hydraulic cylinder 81 in step S220. That is, the piston rod 81c is extended from the cylinder tube 81a, and the fitting portion 282 is fitted to the fitted portion 281. As a result, the position of the crown 4 is fixed. Since the crown 4 and the slide 5 are lowered using the servo motor 260, the crown 4 and the slide 105 are accurately positioned so that the convex portion 282a of the fitting portion 282 is located at a position corresponding to the concave portion 281c of the fitted portion 281. Can be stopped.
　次に、ステップ２３０において、制御部１１は、サーボモータ２６０への通電を停止する。
　次に、ステップＳ２３５において、スライド５が停止した状態で、熱硬化性樹脂が注入路４００を通して上金型１２ａと下金型１２ｂの間に注入される。
　次に、ステップＳ２４０において、制御部１１は、荷重付与部２０７の荷重用油圧回路７８を制御し、クラウン５内の４つの油圧シリンダ２７１を駆動してスライド５を所定の圧力で下方に移動する。このようにスライド５を所定の圧力で下方に移動することによって上金型１２ａおよび下金型１２ｂの間のプリフォーム材３０１および熱硬化性樹脂に成形荷重が付加され、プリフォーム材３０１および熱硬化性樹脂が上金型１２ａと下金型１２ｂの間で加圧される。この加圧によってプリフォーム材３０１および熱硬化性樹脂の成形が行われる。 Next, in step 230, the control unit 11 stops energization of the servo motor 260.
Next, in step S235, with the slide 5 stopped, the thermosetting resin is injected between the upper mold 12a and the lower mold 12b through the injection path 400.
Next, in step S240, the control unit 11 controls the load hydraulic circuit 78 of the load applying unit 207 to drive the four hydraulic cylinders 271 in the crown 5 to move the slide 5 downward at a predetermined pressure. . Thus, by moving the slide 5 downward at a predetermined pressure, a molding load is applied to the preform material 301 and the thermosetting resin between the upper mold 12a and the lower mold 12b, and the preform material 301 and the heat The curable resin is pressurized between the upper mold 12a and the lower mold 12b. By this pressurization, the preform material 301 and the thermosetting resin are molded.
　次に、ステップＳ２５０において、加圧状態が所定時間保持される。
　上記ステップＳ２４０とステップＳ２５０の間、制御部１１は、傾き補正部９のポンプ９５および４組の第１サーボバルブ９３並びに第２サーボバルブ９４を制御することによって油圧シリンダ９１を駆動し、スライド５を所定以下の傾きに保つ。
　所定時間が経過すると、制御部１１は、荷重付与部２０７の荷重用油圧回路７８を制御し、スライド５への荷重の付与を停止する。 Next, in step S250, the pressurized state is maintained for a predetermined time.
Between step S240 and step S250, the control unit 11 drives the hydraulic cylinder 91 by controlling the pump 95 and the four sets of the first servo valve 93 and the second servo valve 94 of the tilt correction unit 9, and the slide 5 Is kept at a predetermined slope or less.
When the predetermined time has elapsed, the control unit 11 controls the load hydraulic circuit 78 of the load applying unit 207 to stop applying the load to the slide 5.
　次に、ステップＳ２６０において、制御部１１は、サーボモータ２６０への通電を行う。
　次に、ステップＳ２７０において、制御部１１は、スライド保持部２０８の保持用油圧回路８７を制御することによって油圧シリンダ８１を駆動し、嵌合部２８２を被嵌合部２８１から離間させる。これによって、クラウン４およびスライド５の固定が解除される。
　次に、ステップＳ２８０において、制御部１１は、サーボモータ２６０を制御し、スライド５およびクラウン４を元の位置まで上昇させる。
　そして、プレス加工が終了した加工済品が取り出され、次のプレス加工が行われる。 Next, in step S260, the control unit 11 energizes the servo motor 260.
Next, in step S <b> 270, the control unit 11 drives the hydraulic cylinder 81 by controlling the holding hydraulic circuit 87 of the slide holding unit 208 to separate the fitting unit 282 from the fitted unit 281. As a result, the crown 4 and the slide 5 are fixed.
Next, in step S280, the control unit 11 controls the servo motor 260 to raise the slide 5 and the crown 4 to their original positions.
Then, the processed product after the press work is taken out, and the next press work is performed.
　（上記実施の形態１～３の特徴）
　（１）
　本実施の形態のプレス装置１、１００、２００は、上金型１２ａと下金型１２ｂを用いてプリフォーム材３０１および熱硬化性樹脂（材料の一例）に対してプレス成形を行うプレス装置であって、スライド５、１０５と、スライド駆動部６、２０６（駆動部の一例）と、荷重付与部７、１０７、２０７と、スライド保持部８、１０８、２０８（保持部の一例）と、制御部１１と、を備えている。スライド５、１０５は、下面５ｓ、１０５ｓに上金型１２ａが取り付けられる。スライド駆動部６は、サーボモータ６０、２６０（電動モータの一例）と、伝達機構６６、２６６（第１伝達機構の一例）と、を有し、スライド５、１０５を昇降させる。伝達機構６６、２６６は、サーボモータ６０、２６０の駆動をスライド５、１０５に伝達する。荷重付与部７、１０７、２０７は、油圧によって所定の圧力で上金型１２ａを下方に移動しプリフォーム材３０１および熱硬化性樹脂に対して成形荷重を付与できる。スライド保持部８、１０８、２０８は、成形荷重の反力を受け止めるようにスライド５、１０５を機械的に保持する。制御部１１は、スライド駆動部６、２０６によりスライド５を成形領域（所定の高さの一例）まで移動し、スライド保持部８、１０８、２０８によりスライド５を保持した後に、荷重付与部７、１０７、２０７により上金型１２ａを所定の圧力で下方に移動し上金型１２ａと下金型１２ｂの間のプリフォーム材３０１および熱硬化性樹脂に成形荷重を付与する。 (Characteristics of Embodiments 1 to 3 above)
(1)
The press apparatuses 1, 100, and 200 according to the present embodiment are press apparatuses that perform press molding on a preform material 301 and a thermosetting resin (an example of a material) using an upper mold 12a and a lower mold 12b. And slides 5 and 105, slide drive units 6 and 206 (an example of a drive unit), load applying units 7, 107 and 207, slide holding units 8, 108 and 208 (an example of a holding unit), and control Part 11. In the slides 5 and 105, the upper mold 12a is attached to the lower surfaces 5s and 105s. The slide drive unit 6 includes servomotors 60 and 260 (an example of an electric motor) and transmission mechanisms 66 and 266 (an example of a first transmission mechanism), and moves the slides 5 and 105 up and down. The transmission mechanisms 66 and 266 transmit the drive of the servo motors 60 and 260 to the slides 5 and 105. The load applying portions 7, 107, and 207 can apply a molding load to the preform material 301 and the thermosetting resin by moving the upper mold 12a downward at a predetermined pressure by hydraulic pressure. The slide holding portions 8, 108, 208 mechanically hold the slides 5, 105 so as to receive the reaction force of the molding load. The control unit 11 moves the slide 5 to the forming region (an example of a predetermined height) by the slide driving units 6 and 206, holds the slide 5 by the slide holding units 8, 108, and 208, and then loads the load applying unit 7, The upper mold 12a is moved downward at a predetermined pressure by 107 and 207, and a molding load is applied to the preform material 301 and the thermosetting resin between the upper mold 12a and the lower mold 12b.
　このように、サーボモータ６０、２６０を用いたスライド駆動部６、２０６と、油圧を用いた荷重付与部７、１０７、２０７が設けられている。
　これにより、成形領域まではサーボモータ６０、２６０によってスライド５、１０５を下方に移動させ、その高さから油圧を用いて成形荷重を付与してプレス成形を行うことが出来る。そのため、成形領域に達するまでのスライド５、１０５の移動を油圧で行う場合と比較してスライド５、１０５のストロークに要する時間が短くでき、プレス成形にかかる時間を短縮できる。 Thus, the slide drive units 6 and 206 using the servomotors 60 and 260 and the load applying units 7, 107 and 207 using hydraulic pressure are provided.
Thereby, the slides 5 and 105 are moved downward by the servo motors 60 and 260 up to the forming region, and press forming can be performed by applying a forming load using hydraulic pressure from the height. Therefore, the time required for the strokes of the slides 5 and 105 can be shortened compared to the case where the slides 5 and 105 are moved by hydraulic pressure until reaching the forming region, and the time required for press forming can be reduced.
　また、スライドの移動を全て油圧で行う場合、成形領域に達するまでの移動（非成形領域での移動）でも大量の油を要するため消費エネルギーが多くなるが、本実施の形態では、サーボモータ６０、２６０を用いて成形領域までスライドを移動させるため省エネルギー化を図れる。
　更に、スライド５、１０５を保持するスライド保持部８、１０８、２０８が設けられているため、成形荷重の反力に対してもスライド５、１０５を保持でき、精度良く加工を行うことができる。
　また、スライド保持部８、１０８、２０８によってスライド５、１０５を保持している状態では、サーボモータ６０、２６０を停止可能なため、必要に応じてサーボモータ６０、２６０を停止することによってサーボモータ６０、２６０にかかる負荷を軽減できる。 Further, when all the slides are moved by hydraulic pressure, a large amount of oil is required for the movement until reaching the molding region (movement in the non-molding region), but energy consumption increases. In this embodiment, the servo motor 60 is used. , 260 is used to move the slide to the forming region, thereby saving energy.
Furthermore, since the slide holding portions 8, 108 and 208 for holding the slides 5 and 105 are provided, the slides 5 and 105 can be held against the reaction force of the molding load, and processing can be performed with high accuracy.
Further, since the servo motors 60 and 260 can be stopped in a state where the slides 5 and 105 are held by the slide holding units 8, 108 and 208, the servo motors 60 and 260 can be stopped as necessary to stop the servo motors 60 and 260. The load applied to 60 and 260 can be reduced.
　（２）
　本実施の形態のプレス装置１、１００、２００では、制御部１１は、スライド保持部８、１０８、２０８によりスライド５、１０５を保持した後に、サーボモータ６０、２６０の駆動を停止する。
　スライド保持部８、１０８、２０８によってスライド５、１０５を保持している状態では、このようにサーボモータ６０、２６０を停止できるため、サーボモータ６０、２６０にかかる負荷を減少できる。 (2)
In the press apparatuses 1, 100, and 200 according to the present embodiment, the control unit 11 stops driving the servo motors 60 and 260 after holding the slides 5 and 105 by the slide holding units 8, 108, and 208.
In a state where the slides 5 and 105 are held by the slide holding portions 8, 108 and 208, the servo motors 60 and 260 can be stopped in this way, so that the load on the servo motors 60 and 260 can be reduced.
　（３）
　本実施の形態のプレス装置１、２００では、スライド保持部８、２０８は、伝達機構６６、２６６を機械的に固定することによって、成形荷重の反力を受け止めるようにスライド５を機械的に保持する。
　成形荷重の反力に対してもスライド５を保持でき、精度良く加工を行うことができる。また、スライド保持部８、２０８によってスライド５を保持している状態では、サーボモータ６０、２６０を停止できるため、サーボモータ６０、２６０にかかる負担を減少できる。 (3)
In the press apparatuses 1 and 200 of the present embodiment, the slide holding portions 8 and 208 mechanically hold the slide 5 so as to receive the reaction force of the molding load by mechanically fixing the transmission mechanisms 66 and 266. To do.
The slide 5 can be held against the reaction force of the molding load, and processing can be performed with high accuracy. Further, in a state where the slide 5 is held by the slide holding portions 8 and 208, the servo motors 60 and 260 can be stopped, so that the burden on the servo motors 60 and 260 can be reduced.
　（４）
　本実施の形態のプレス装置１では、伝達機構６６は、ヘリカルギヤ６２ａ（ギヤの一例）を有する。スライド保持部８は、嵌合部８０と、移動部８６と、を有する。嵌合部８０は、ヘリカルギヤ６２ａの歯６２１の間に嵌合可能である。移動部８６は、ヘリカルギヤ６２ａの歯６２１の間の位置に嵌合部８０を移動させる。荷重付与部７は、スライド５を下方に移動することにより、プリフォーム材３０１と熱硬化性樹脂に成形荷重を付与する。スライド保持部８は、移動部８６を制御して嵌合部８０をヘリカルギヤ６２ａの歯６２１の間に移動させて伝達機構６６を機械的に固定することによって、成形荷重の反力を受け止めるようにスライド５を機械的に保持する。
　このように伝達機構６６のヘリカルギヤ６２ａの歯６２１の間に嵌合部８０を移動することによって、成形荷重を受けとめることが可能となる。 (4)
In the press device 1 of the present embodiment, the transmission mechanism 66 has a helical gear 62a (an example of a gear). The slide holding unit 8 includes a fitting unit 80 and a moving unit 86. The fitting part 80 can be fitted between the teeth 621 of the helical gear 62a. The moving part 86 moves the fitting part 80 to a position between the teeth 621 of the helical gear 62a. The load application unit 7 applies a molding load to the preform material 301 and the thermosetting resin by moving the slide 5 downward. The slide holding unit 8 receives the reaction force of the molding load by controlling the moving unit 86 and moving the fitting unit 80 between the teeth 621 of the helical gear 62a to mechanically fix the transmission mechanism 66. The slide 5 is mechanically held.
Thus, by moving the fitting portion 80 between the teeth 621 of the helical gear 62a of the transmission mechanism 66, it becomes possible to receive the molding load.
　（５）
　本実施の形態のプレス装置１００では、スライド１０５は、スライド本体１０５ａと、金型取付板１０５ｂ（金型取付部の一例）と、を有する。金型取付板１０５ｂは、スライド本体１０５ａの下側に配置され上金型１２ａが取り付けられる。荷重付与部１０７は、金型取付板１０５ｂを下方に移動することにより、プリフォーム材３０１と熱硬化性樹脂に成形荷重を付与する。スライド保持部１０８は、スライド本体１０５ａを機械的に固定することによって、成形荷重の反力を受け止めるようにスライド１０５を機械的に保持する。
　このように、スライド本体１０５ａを所定の高さに固定し、金型取付板１０５ｂによって成形荷重を付与することによって、成形荷重を受け止めることが出来る。 (5)
In the press apparatus 100 according to the present embodiment, the slide 105 includes a slide main body 105a and a mold attachment plate 105b (an example of a mold attachment portion). The mold attachment plate 105b is disposed on the lower side of the slide main body 105a, and the upper mold 12a is attached thereto. The load application unit 107 applies a molding load to the preform material 301 and the thermosetting resin by moving the mold attachment plate 105b downward. The slide holding unit 108 mechanically holds the slide 105 so as to receive the reaction force of the molding load by mechanically fixing the slide main body 105a.
Thus, the molding load can be received by fixing the slide body 105a to a predetermined height and applying the molding load by the mold mounting plate 105b.
　（６）
　本実施の形態のプレス装置１００は、クラウン４と、アプライト３を更に備える。クラウン４は、スライド１０５の上方に配置されスライド１０５を移動可能に支持する。アプライト３は、クラウン４をスライド１０５の上方に支持する。スライド保持部１０８は、嵌合部１８２と、被嵌合部１８１と、移動部８６と、を有する。嵌合部１８２は、スライド本体１０５ａに設けられアプライト３に向かって移動可能である。被嵌合部１８１は、アプライト３のスライド１０５側の側面３ａに設けられている。移動部８６は、嵌合部１８２を移動させて被嵌合部１８１に嵌合させる。スライド保持部１０８は、移動部８６を制御して嵌合部１８２を被嵌合部１８１に嵌合させることによって、成形荷重の反力を受け止めるようにスライド１０５を機械的に保持する。
　このように、スライド本体１０５ａをアプライト３を利用して固定することによって、金型取付板１０５ｂにより付与される成形荷重を受け止めることが出来る。 (6)
The press apparatus 100 according to the present embodiment further includes a crown 4 and an upright 3. The crown 4 is disposed above the slide 105 and supports the slide 105 so as to be movable. The upright 3 supports the crown 4 above the slide 105. The slide holding part 108 has a fitting part 182, a fitted part 181, and a moving part 86. The fitting portion 182 is provided on the slide main body 105 a and is movable toward the upright 3. The fitted portion 181 is provided on the side surface 3 a of the upright 3 on the slide 105 side. The moving part 86 moves the fitting part 182 to fit the fitted part 181. The slide holding unit 108 mechanically holds the slide 105 so as to receive the reaction force of the molding load by controlling the moving unit 86 and fitting the fitting unit 182 to the fitted unit 181.
Thus, by fixing the slide body 105a using the upright 3, it is possible to receive the molding load applied by the mold mounting plate 105b.
　（７）
　本実施の形態のプレス装置２００は、クラウン４を備えている。クラウン４は、スライド５の上方に配置され、スライド５を移動可能に支持する。伝達機構２６６は、ボールネジ部２６１と支持部２６２とを有する。ボールネジ部２６１は、鉛直方向に配置され、クラウン４をスライド５の上方に支持する。支持部２６２は、ボールネジ部２６１と螺合する。ボールネジ部２６１は、サーボモータ２６０の駆動によって回転する。スライド駆動部２０６は、ボールネジ部２６１を回転させてクラウン４を下方に移動させることによってスライド５を所定の高さまで下降させる。
　これによって、サーボモータ２６０の駆動力を用いてスライド５を所定の高さまで下降できる。 (7)
The press apparatus 200 according to the present embodiment includes a crown 4. The crown 4 is disposed above the slide 5 and supports the slide 5 so as to be movable. The transmission mechanism 266 includes a ball screw part 261 and a support part 262. The ball screw portion 261 is arranged in the vertical direction and supports the crown 4 above the slide 5. The support portion 262 is screwed with the ball screw portion 261. The ball screw portion 261 rotates by driving the servo motor 260. The slide drive unit 206 lowers the slide 5 to a predetermined height by rotating the ball screw part 261 and moving the crown 4 downward.
Thereby, the slide 5 can be lowered to a predetermined height by using the driving force of the servo motor 260.
　（８）
　本実施の形態のプレス装置２００では、スライド保持部２０８は、被嵌合部２８１と、嵌合部２８２と、移動部８６と、を有する。被嵌合部２８１は、ボールネジ部２６１に固定されている。嵌合部２８２は、被嵌合部２８１に嵌合可能である。移動部８６は、嵌合部２８２を移動させて被嵌合部２８１に嵌合させる。スライド保持部２０８は、移動部８６を制御して嵌合部２８２を被嵌合部２８１に嵌合させることによって、ボールネジ部２６１を固定し成形荷重の反力を受け止めるようにスライド５を機械的に保持する。
　このように、ボールネジ部２６１をスライド保持部２０８によって固定することによって、成形荷重の反力を受け止めることができる。 (8)
In the press device 200 according to the present embodiment, the slide holding unit 208 includes a fitted portion 281, a fitting portion 282, and a moving portion 86. The fitted part 281 is fixed to the ball screw part 261. The fitting portion 282 can be fitted to the fitted portion 281. The moving part 86 moves the fitting part 282 to fit the fitted part 281. The slide holding portion 208 controls the moving portion 86 to fit the fitting portion 282 to the fitted portion 281, thereby fixing the ball screw portion 261 and mechanically moving the slide 5 to receive the reaction force of the molding load. Hold on.
Thus, by fixing the ball screw portion 261 by the slide holding portion 208, the reaction force of the molding load can be received.
　（９）
　本実施の形態のプレス装置１、１００では、荷重付与部７、１０７は、スライド５、１０５に配置された油圧シリンダ７１、１７１を有し、油圧シリンダ７１、１７１の油圧によって、プリフォーム材３０１と熱硬化性樹脂に成形荷重を付与する。
　このようにスライド５、１０５に成形荷重を付与する油圧シリンダ７１、１７１を設けることによって、プリフォーム材３０１と熱硬化性樹脂に対して成形荷重を付与できる。 (9)
In the press apparatuses 1 and 100 according to the present embodiment, the load applying portions 7 and 107 have hydraulic cylinders 71 and 171 disposed on the slides 5 and 105, and the preform material 301 is generated by the hydraulic pressure of the hydraulic cylinders 71 and 171. A molding load is applied to the thermosetting resin.
Thus, by providing the hydraulic cylinders 71 and 171 for applying a molding load to the slides 5 and 105, the molding load can be applied to the preform material 301 and the thermosetting resin.
　（１０）
　本実施の形態のプレス装置２００は、クラウン４を更に備えている。クラウン４は、スライド５の上方に配置されスライド５を昇降可能に支持する。荷重付与部２０７は、油圧シリンダ２７１と、荷重伝達機構２７２（第２伝達機構の一例）と、を有する。油圧シリンダ２７１は、水平方向に移動可能なピストンロッド２７１ｃを持ち、クラウン４に配置されている。荷重伝達機構２７２は、油圧シリンダ２７１の力を増幅してスライドに伝達する倍力機構を持つ。荷重伝達機構２７２は、ピストンロッド２７１ｃの水平方向の移動を上下方向の移動に変換してスライド５に伝達する。 (10)
The press apparatus 200 according to the present embodiment further includes a crown 4. The crown 4 is disposed above the slide 5 and supports the slide 5 so as to be movable up and down. The load applying unit 207 includes a hydraulic cylinder 271 and a load transmission mechanism 272 (an example of a second transmission mechanism). The hydraulic cylinder 271 has a piston rod 271 c that can move in the horizontal direction, and is disposed on the crown 4. The load transmission mechanism 272 has a booster mechanism that amplifies the force of the hydraulic cylinder 271 and transmits it to the slide. The load transmission mechanism 272 converts the movement of the piston rod 271 c in the horizontal direction into the movement in the vertical direction and transmits it to the slide 5.
　荷重伝達機構２７２が設けられているためピストンロッド２７１ｃが水平方向になるように油圧シリンダ２７１を配置できる。このため、鉛直方向になるように油圧シリンダ２７１を配置するよりも、プレス装置の高さを低くできる。
　また、荷重伝達機構２７２が倍力機構を有しているため、油圧シリンダ２７１を小型化でき、使用する作動油の量も減らすことができる。 Since the load transmission mechanism 272 is provided, the hydraulic cylinder 271 can be arranged so that the piston rod 271c is in the horizontal direction. For this reason, the height of a press apparatus can be made lower than arrange | positioning the hydraulic cylinder 271 so that it may become a perpendicular direction.
Moreover, since the load transmission mechanism 272 has a booster mechanism, the hydraulic cylinder 271 can be reduced in size and the amount of hydraulic oil to be used can be reduced.
　（１１）
　本実施の形態のプレス装置２００では、荷重伝達機構２７２は、スライド５の上側に固定され上下方向にガイドされるプランジャ６４を有する。倍力機構は、第１連結部材２７３（第１部材の一例）と、第２連結部材２７８（第２部材の一例）と、第３連結部材２７４（第３部材の一例）と、を有する。第１連結部材２７３は、ピストンロッド２７１ｃに対して回動可能に連結されている。第２連結部材２７８は、第１連結部材２７３とスライド５の上側に配置されたプランジャ６４との間を連結する。第３連結部材２７４は、第１連結部材２７３とクラウン４の間を連結する。第２連結部材２７８は、第１連結部材２７３およびプランジャ６４の上端部のそれぞれに対して回動可能である。第３連結部材２７４は、第１連結部材２７３およびクラウン４のそれぞれに対して回動可能である。
　このように第１連結部材２７３、第２連結部材２７８および第３連結部材２７４が設けられることによって、倍力機構の一例としてのトグルリンク機構を構成できる。 (11)
In the press device 200 of the present embodiment, the load transmission mechanism 272 has a plunger 64 that is fixed to the upper side of the slide 5 and guided in the vertical direction. The booster mechanism includes a first connecting member 273 (an example of a first member), a second connecting member 278 (an example of a second member), and a third connecting member 274 (an example of a third member). The first connecting member 273 is rotatably connected to the piston rod 271c. The second connecting member 278 connects the first connecting member 273 and the plunger 64 disposed on the upper side of the slide 5. The third connecting member 274 connects between the first connecting member 273 and the crown 4. The second connecting member 278 is rotatable with respect to each of the first connecting member 273 and the upper end portion of the plunger 64. The third connecting member 274 is rotatable with respect to each of the first connecting member 273 and the crown 4.
Thus, by providing the 1st connection member 273, the 2nd connection member 278, and the 3rd connection member 274, the toggle link mechanism as an example of a boost mechanism can be comprised.
　（１２）
　本実施の形態のプレス装置２００では、第１連結部材２７３と第２連結部材２７８の連結部において、第３連結部材２７４は第１連結部材２７３と連結されている。
　このように第１連結部材２７３と第２連結部材２７８の間の連結部と、第１連結部材２７３と第３連結部材２７４の間の連結部を同じ第１連結部２７７ａにすることで省スペース化を図れる。 (12)
In the press device 200 according to the present embodiment, the third connecting member 274 is connected to the first connecting member 273 at the connecting portion between the first connecting member 273 and the second connecting member 278.
In this way, the connecting portion between the first connecting member 273 and the second connecting member 278 and the connecting portion between the first connecting member 273 and the third connecting member 274 are made the same first connecting portion 277a, thereby saving space. Can be realized.
　（１３）
　本実施の形態のプレス装置１、１００、２００は、傾き補正部９を更に備える。傾き補正部９は、上金型１２ａが水平に保たれるようにスライド５、１０５の傾斜を補正する。制御部１１は、荷重付与部７、１０７、２０７によってプリフォーム材３０１と熱硬化性樹脂に成形荷重を付与する際に、傾き補正部９によりスライド５、１０５の傾斜を補正する。
　ＣＦＲＰ等の液状若しくは柔らかい軟性の材料をプレスする際には、金型に形成されている加工品の形状によっては荷重に偏りが生じ、上金型１２ａが傾斜する場合がある。上述のように、傾き補正部９を設けることによって上金型１２ａの傾斜を低減でき、加工精度を向上できる。 (13)
The press apparatuses 1, 100, and 200 according to the present embodiment further include an inclination correction unit 9. The inclination correction unit 9 corrects the inclination of the slides 5 and 105 so that the upper mold 12a is kept horizontal. The control unit 11 corrects the inclination of the slides 5 and 105 by the inclination correction unit 9 when applying the molding load to the preform material 301 and the thermosetting resin by the load application units 7, 107, and 207.
When a liquid or soft soft material such as CFRP is pressed, the load may be biased depending on the shape of the workpiece formed on the mold, and the upper mold 12a may be inclined. As described above, by providing the inclination correction unit 9, the inclination of the upper mold 12a can be reduced, and the processing accuracy can be improved.
　（１４）
　本実施の形態のプレス装置１では、傾き補正部９は、複数の油圧シリンダ９１と、ポンプ９５と、油圧シリンダ９１ごとに設けられた第１サーボバルブ９３および第２サーボバルブ９４（バルブの一例）と、を有する。ポンプ９５は、作動油を複数の油圧シリンダ９１に供給する。第１サーボバルブ９３および第２サーボバルブ９４は、油圧シリンダ９１ごとに設けられ、油圧シリンダ９１に供給される作動油の量を調整する。油圧シリンダ９１のピストンロッド９１ｃは、成形荷重が付与される際にスライド５、１０５に下方から当接する。制御部１１は、荷重付与部７によって成形荷重を付与する際に、複数の油圧シリンダ９１のピストンロッド９１ｃのストロークが同じ長さになるように第１サーボバルブ９３および第２サーボバルブ９４を制御する。
　これにより、ＣＦＲＰ等の液状若しくは柔らかい軟性の材料をプレスする際に、上金型１２ａの傾きを低減できる。 (14)
In the press device 1 according to the present embodiment, the inclination correction unit 9 includes a plurality of hydraulic cylinders 91, pumps 95, and first servo valves 93 and second servo valves 94 (an example of valves) provided for each hydraulic cylinder 91. And). The pump 95 supplies hydraulic oil to the plurality of hydraulic cylinders 91. The first servo valve 93 and the second servo valve 94 are provided for each hydraulic cylinder 91 and adjust the amount of hydraulic oil supplied to the hydraulic cylinder 91. The piston rod 91c of the hydraulic cylinder 91 contacts the slides 5 and 105 from below when a molding load is applied. The control unit 11 controls the first servo valve 93 and the second servo valve 94 so that the strokes of the piston rods 91c of the plurality of hydraulic cylinders 91 have the same length when the molding load is applied by the load applying unit 7. To do.
Thereby, when pressing a liquid or soft soft material such as CFRP, the inclination of the upper mold 12a can be reduced.
　（１５）
　上記実施の形態のプレス装置の制御方法は、上金型１２ａと下金型１２ｂを用いてプリフォーム材３０１および熱硬化性樹脂に対してプレス成形を行うプレス装置１、１００、２００の制御方法であって、ステップＳ１０、１１０、２１０（移動工程の一例）と、ステップＳ２０、１２０、２２０（保持工程の一例）と、ステップＳ５０、Ｓ１５０、Ｓ２５０（荷重付与工程の一例）と、を備える。ステップＳ１０、１１０、２１０は、サーボモータ６０、２６０の駆動を上金型１２ａが取り付けられているスライド５、１０５に伝達してスライド５、１０５を成形領域の高さまで移動させる。ステップＳ２０、１２０、２２０は、成形荷重の反力を受け止めるようにスライド５、１０５を機械的に保持する。ステップＳ５０、Ｓ１５０、Ｓ２５０は、成形領域の高さから油圧によって上金型１２ａを下方に移動しプリフォーム材３０１および熱硬化性樹脂に対して成形荷重を付与する。 (15)
The control method of the press apparatus of the said embodiment is the control method of press apparatus 1,100,200 which press-forms with respect to the preform material 301 and a thermosetting resin using the upper metal mold | die 12a and the lower metal mold | die 12b. Then, Steps S10, 110, and 210 (an example of a moving process), Steps S20, 120, and 220 (an example of a holding process), and Steps S50, S150, and S250 (an example of a load applying process) are provided. In steps S10, 110, and 210, the drive of the servo motors 60 and 260 is transmitted to the slides 5 and 105 to which the upper mold 12a is attached to move the slides 5 and 105 to the height of the molding region. Steps S20, 120, and 220 mechanically hold the slides 5 and 105 so as to receive the reaction force of the molding load. In steps S50, S150, and S250, the upper mold 12a is moved downward by hydraulic pressure from the height of the molding region, and a molding load is applied to the preform material 301 and the thermosetting resin.
　これにより、成形領域まではサーボモータ６０、２６０によってスライドを下方に移動させ、その高さから油圧を用いて成形荷重を付与してプレス成形を行うことが出来る。そのため、スライド５、１０５のストロークに要する時間が短くでき、プレス成形にかかる時間を短縮できる。
　更に、成形荷重の反力を受け止めるようにスライド５、１０５を保持できるため、精度良く加工を行うことができる。 Accordingly, the slide can be moved downward by the servo motors 60 and 260 up to the forming region, and press forming can be performed by applying a forming load using hydraulic pressure from the height. Therefore, the time required for the strokes of the slides 5 and 105 can be shortened, and the time required for press molding can be shortened.
Furthermore, since the slides 5 and 105 can be held so as to receive the reaction force of the forming load, the processing can be performed with high accuracy.
　（１６）
　上記実施の形態のプレス装置１、１００、２００の成形方法は、ステップＳ３０、Ｓ１３０、Ｓ２３０（停止工程の一例）を更に備える。ステップＳ３０、Ｓ１３０、Ｓ２３０は、ステップＳ２０、１２０、２２０の後にサーボモータ６０、２６０の駆動を停止する。 (16)
The forming method of the press apparatuses 1, 100, and 200 of the above embodiment further includes steps S30, S130, and S230 (an example of a stop process). Steps S30, S130, and S230 stop driving the servomotors 60 and 260 after steps S20, 120, and 220.
　ステップＳ２０、１２０、２２０によってスライド５、１０５を保持している状態では、サーボモータ６０、２６０を停止できるため、サーボモータ６０、２６０にかかる負担を減少できる。 In a state where the slides 5 and 105 are held by the steps S20, 120, and 220, the servo motors 60 and 260 can be stopped, so that the burden on the servo motors 60 and 260 can be reduced.
　[他の実施の形態]
　以上、本発明の一実施形態について説明したが、本発明は上記実施形態に限定されるものではなく、発明の要旨を逸脱しない範囲で種々の変更が可能である。
　（Ａ）
　上記実施の形態では、ＲＴＭ工法におけるプレス装置の動作について説明したが、この工法にかぎられるものではない。例えば、ＳＳ工法においても同様に実施できる。
　図１９は、プレス装置１´の構成を示す模式図である。プレス装置１´では、上金型１２ａ´に熱硬化性樹脂を注入するための注入路４００が形成されていない。図２０は、図１９に示すプレス装置１´の制御方法を示すフロー図である。なお、ＳＳ工法では熱可塑性樹脂を使用するが、熱可塑性樹脂としては、ポリアミド、ポリプロピレンなどが用いられる。 [Other embodiments]
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.
(A)
In the above embodiment, the operation of the press device in the RTM method has been described, but the method is not limited to this method. For example, the SS method can be similarly applied.
FIG. 19 is a schematic diagram showing the configuration of the press apparatus 1 ′. In the press apparatus 1 ′, the injection path 400 for injecting the thermosetting resin into the upper mold 12a ′ is not formed. FIG. 20 is a flowchart showing a control method of the press apparatus 1 ′ shown in FIG. In the SS method, a thermoplastic resin is used, and as the thermoplastic resin, polyamide, polypropylene, or the like is used.
　ＳＳ工法では、炭素繊維のシートに熱可塑性樹脂を含浸させたプリプレグを積層したスタンパブルシート３００が用いられる。加熱されたスタンパブルシート３００が下金型１２ｂ´上に載置されて、スライド５が下降される（ステップＳ１０）。次に、伝達機構６６がスライド保持部８によって固定された後、サーボモータ６０が停止される（ステップＳ２０、３０）。
　次に、荷重付与部７によってスライド５に成形荷重が付与され、上金型１０ａ´と下金型１０ｂ´の間で加圧成形が行われる（ステップＳ４０）。
　以降の制御は、上記実施の形態と同様である。
　なお、プレス装置１００、２００についてもＳＳ工法に利用してもよい。 In the SS method, a stampable sheet 300 in which a carbon fiber sheet is laminated with a prepreg impregnated with a thermoplastic resin is used. The heated stampable sheet 300 is placed on the lower mold 12b ′, and the slide 5 is lowered (step S10). Next, after the transmission mechanism 66 is fixed by the slide holding unit 8, the servo motor 60 is stopped (steps S20 and S30).
Next, a molding load is applied to the slide 5 by the load applying unit 7, and pressure molding is performed between the upper mold 10a 'and the lower mold 10b' (step S40).
Subsequent control is the same as in the above embodiment.
The press devices 100 and 200 may also be used for the SS method.
　（Ｂ）
　また、上記実施の形態及び上記（Ａ）では、材料の一例として連続炭素繊維を用いたＣＦＲＰ用いて説明したが、これに限られるものではない。不連続炭素繊維を用いたＣＦＲＰをプレス加工する際に上記実施の形態及び上記（Ａ）のプレス装置１、１００、２００、１´を用いても良いし、更にＣＦＲＰに限らなくても良い。すなわち、炭素繊維を含まない樹脂などを成形する際にプレス装置１、１００、２００、１´が用いられても良い。なお、上記実施の形態で説明したプレス装置を板金加工などの際に用いても良いが、軟性の柔らかい素材や液状の素材をプレス加工する際のほうが、より効果を発揮する。 (B)
In the above embodiment and the above (A), the CFRP using continuous carbon fiber is described as an example of the material. However, the present invention is not limited to this. When pressing CFRP using discontinuous carbon fibers, the press devices 1, 100, 200, 1 ′ of the above embodiment and (A) may be used, and the present invention is not limited to CFRP. That is, the press devices 1, 100, 200, 1 ′ may be used when molding a resin that does not contain carbon fibers. Although the press apparatus described in the above embodiment may be used for sheet metal processing or the like, it is more effective when a soft soft material or a liquid material is pressed.
　（Ｃ）
　上記実施の形態のプレス装置１、１００、２００では、電動モータの一例としてサーボモータ６０、２６０が用いられているが、サーボモータに限らなくても良く、例えばインバータモータが用いられてもよい。
　（Ｄ）
　上記実施の形態では、サーボモータ６０、２６０の駆動によってスライド５、１０５を成形領域に達するまで下降させて、成形領域に達してからは油圧によって成形を行っているが、サーボモータ６０、２６０でスライド５、１０５を下降させる位置は成形領域よりも上方の位置であってもよく、その位置からは油圧でスライド５、１０５を下降させてもよい。
　このような場合であっても、スライドの全てのストロークを油圧で行う場合と比較すると、スライドの往復に要する時間は短縮できるため、本発明の効果を発揮できる。 (C)
In the press devices 1, 100, and 200 according to the above-described embodiments, the servo motors 60 and 260 are used as an example of the electric motor. However, the present invention is not limited to the servo motor, and for example, an inverter motor may be used.
(D)
In the above embodiment, the slides 5 and 105 are lowered by driving the servo motors 60 and 260 until reaching the forming region, and after reaching the forming region, forming is performed by hydraulic pressure. The position where the slides 5 and 105 are lowered may be a position above the molding region, and the slides 5 and 105 may be lowered from the position by hydraulic pressure.
Even in such a case, the time required for the reciprocation of the slide can be shortened as compared with the case where all the strokes of the slide are hydraulically performed, so that the effect of the present invention can be exhibited.
　（Ｅ）
　上記実施の形態では、成形領域に達する高さでスライド５、１０５の下面５ｓ、１０５ｓに傾き補正部９の当接部９０が当接しているが、成形領域に達するより前に当接部９０がスライド５、１０５に当接してもよい。 (E)
In the above-described embodiment, the contact portion 90 of the inclination correcting unit 9 is in contact with the lower surfaces 5s and 105s of the slides 5 and 105 at a height reaching the forming region, but the contact portion 90 is reached before reaching the forming region. May contact the slides 5 and 105.
　（Ｆ）
　上記実施の形態では、サーボモータ２６０はボールネジ部２６１と同軸上に配置されており、サーボモータ２６０の駆動軸２６０ａとボールネジ部２６１が直接接続されていたが、これに限られない。例えば、サーボモータ２６０がボールネジ部２６１と平行に配置されており、歯車等で減速されて駆動軸２６０ａの回転がボールネジ部２６１に伝達されてもよい。 (F)
In the above embodiment, the servo motor 260 is arranged coaxially with the ball screw portion 261, and the drive shaft 260a of the servo motor 260 and the ball screw portion 261 are directly connected. However, the present invention is not limited to this. For example, the servo motor 260 may be disposed in parallel with the ball screw portion 261, and the rotation of the drive shaft 260a may be transmitted to the ball screw portion 261 by being decelerated by a gear or the like.
　（Ｇ）
　また、サーボモータ６０、２６０、伝達機構６６、２６６、油圧シリンダ７１、８１、１７１、２７１、の数は、上記実施の形態に限られるものでなく適宜変更できる。
　（Ｈ）
　また、上記実施の形態では、第２連結部材２７８は、第２Ａ連結部材２７５と第２Ｂ連結部材２７６の２つの部材が連結されて構成されているが、１つの部材のみで構成されていてもよい。 (G)
The number of servo motors 60 and 260, transmission mechanisms 66 and 266, and hydraulic cylinders 71, 81, 171, and 271 are not limited to the above-described embodiment, and can be changed as appropriate.
(H)
Moreover, in the said embodiment, although the 2nd connection member 278 is comprised by connecting two members, the 2A connection member 275 and the 2B connection member 276, it may be comprised only by one member. Good.
　（Ｉ）
　また、上記実施の形態では、第２連結部材２７８と第３連結部材２７４は第１連結部２７７ａで第１連結部材２７３と連結されているが、第１連結部材２７３と第２連結部材２７８の連結部と、第１連結部材２７３と第３連結部材２７４の連結部が別々に設けられていてもよい。
　図２１に示すように、第１連結部材２７３´として３軸リンク部材が配置されてもよい。この場合、第１連結部材２７３´と第２連結部材２７８（詳細には第２Ａ連結部材２５）は、第１Ａ連結部２７７ｅで連結され、第１連結部材２７３´と第３連結部材２７４は、第１Ｂ連結部材２７７ｆで連結されている。 (I)
Moreover, in the said embodiment, although the 2nd connection member 278 and the 3rd connection member 274 are connected with the 1st connection member 273 by the 1st connection part 277a, the 1st connection member 273 and the 2nd connection member 278 are connected. The connection part and the connection part of the 1st connection member 273 and the 3rd connection member 274 may be provided separately.
As shown in FIG. 21, a triaxial link member may be disposed as the first connecting member 273 ′. In this case, the first connecting member 273 ′ and the second connecting member 278 (specifically, the second A connecting member 25) are connected by the first A connecting portion 277e, and the first connecting member 273 ′ and the third connecting member 274 are They are connected by the first B connecting member 277f.
　（Ｊ）
　また、上記実施の形態では、倍力機構としてトグルリンク機構が用いられたが、トグルリンクに限られるものでない。 (J)
Moreover, in the said embodiment, although the toggle link mechanism was used as a boost mechanism, it is not restricted to a toggle link.
　本発明のプレス装置およびプレス装置の制御方法は、プレス加工に要する時間を短縮可能な効果を有し、例えば、ＣＦＲＰのプレス加工を行う際などに有用である。 The press device and the control method of the press device of the present invention have an effect of reducing the time required for press work, and are useful when, for example, CFRP press work is performed.
１　　　　プレス装置
１´　　　プレス装置
２　　　　ベッド
３　　　　アプライト
３ａ　　　側面
４　　　　クラウン
５　　　　スライド
５ｓ　　　下面
６　　　　スライド駆動部（駆動部の一例）
７　　　　荷重付与部
８　　　　スライド保持部（保持部の一例）
９　　　　傾き補正部
１０　　　ボルスタ
１１　　　制御部
１２ａ　　上金型
１２ａ´　上金型
１２ｂ　　下金型
１２ｂ´　下金型
６０　　　サーボモータ（電動モータの一例）
６０ａ　　駆動軸
６１　　　第１減速機
６１ａ　　大プーリ
６１ｂ　　第１ギヤ
６１ｃ　　第１ピニオン
６１ｄ　　第２ギヤ
６１ｅ　　第２ピニオン
６１ｆ　　第３ピニオン
６２　　　第２減速機
６２ａ　　ヘリカルギヤ
６２ｂ　　レバー
６２ｃ　　連結部材
６３　　　昇降部
６３ａ　　エキセン軸
６３ｂ　　エキセンドラム
６３ｃ　　コンロッド
６４　　　プランジャ
６４ａ　　上端部
６５　　　プランジャホルダ
６６　　　伝達機構
６７　　　ベルト
６８　　　小プーリ
７１　　　油圧シリンダ
７１ａ　　シリンダチューブ
７１ｂ　　ピストン
７１ｃ　　下方空間
７１ｄ　　上方空間
７２　　　方向切換バルブ
７３　　　流量調整バルブ
７４　　　圧力制御バルブ
７５　　　ポンプ
７６ａ　　第１接続路
７６ｂ　　第２接続路
７６ｃ　　第３接続路
７６ｄ　　排油路
７７　　　作動油タンク
７８　　　荷重用油圧回路
８０　　　嵌合部
８１　　　油圧シリンダ
８１ａ　　シリンダチューブ
８１ｂ　　ピストン
８１ｃ　　ピストンロッド
８１ｄ　　第１空間
８１ｅ　　第２空間
８２　　　方向切換バルブ
８３　　　ポンプ
８４ａ　　第１接続路
８４ｂ　　第２接続路
８４ｃ　　第３接続路
８４ｄ　　排油路
８５　　　作動油タンク
８６　　　移動部
８７　　　保持用油圧回路
９０　　　当接部
９１　　　油圧シリンダ
９１ａ　　シリンダチューブ
９１ｂ　　ピストン
９１ｃ　　ピストンロッド
９１ｄ　　下方空間
９１ｅ　　上方空間
９２　　　リニアセンサ
９３　　　第１サーボバルブ
９４　　　第２サーボバルブ
９５　　　ポンプ
９６ａ　　第１接続路
９６ｂ　　第２接続路
９６ｃ　　第３接続路
９６ｄ　　排油路
９７　　　作動油タンク
１００　　プレス装置
１０２　　スライド
１０２ａ　スライド本体
１０２ｂ　金型取付板
１０５　　スライド
１０５ａ　スライド本体
１０５ｂ　金型取付板
１０５ｓ　下面
１０７　　荷重付与部
１０８　　スライド保持部
１７１　　油圧シリンダ
１７１ａ　シリンダチューブ
１７１ｂ　ピストン
１７１ｃ　ピストンロッド
１７１ｄ　下方空間
１７１ｅ　上方空間
１８１　　被嵌合部
１８１ａ　凹部
１８１ｂ　凸部
１８２　　嵌合部
２００　　プレス装置
２０６　　スライド駆動部
２０７　　荷重付与部
２０８　　スライド保持部
２１１　　制御部
２６０　　サーボモータ（電動モータの一例）
２６０ａ　駆動軸
２６１　　ボールネジ部
２６１ａ　ネジ形状
２６２　　支持部
２６２ａ　貫通孔
２６３　　軸受
２６６　　伝達機構
２７１　　油圧シリンダ
２７１ａ　シリンダチューブ
２７１ｂ　ピストン
２７１ｃ　ピストンロッド
２７１ｄ　内側空間
２７１ｅ　外側空間
２７１ｆ　先端
２７２　　荷重伝達機構
２７３　　第１連結部材
２７４　　第３連結部材
２７５　　第２Ａ連結部材
２７６　　第２Ｂ連結部材
２７７ａ　第１連結部
２７７ｂ　第２連結部
２７７ｃ　第３連結部
２７７ｄ　中間連結部
２７８　　第２連結部材
２８１　　被嵌合部
２８１ａ　円柱部
２８１ｂ　円環状突起部
２８１ｃ　凹部
２８２　　嵌合部
２８２ａ　凸部
２８２ｂ　凹部
３００　　スタンパブルシート
３０１　　プリフォーム材
４００　　注入路
６２１　　歯 DESCRIPTION OF SYMBOLS 1 Press apparatus 1 'Press apparatus 2 Bed 3 Upright 3a Side surface 4 Crown 5 Slide 5s Lower surface 6 Slide drive part (an example of a drive part)
7 Load applying portion 8 Slide holding portion (an example of holding portion)
9 Inclination correction unit 10 Bolster 11 Control unit 12a Upper mold 12a 'Upper mold 12b Lower mold 12b' Lower mold 60 Servo motor (an example of an electric motor)
60a Drive shaft 61 1st reduction gear 61a Large pulley 61b 1st gear 61c 1st pinion 61d 2nd gear 61e 2nd pinion 61f 3rd pinion 62 2nd reduction gear 62a Helical gear 62b Lever 62c Connecting member 63 Elevating part 63a Excentric shaft 63b Exhaust drum 63c Connecting rod 64 Plunger 64a Upper end 65 Plunger holder 66 Transmission mechanism 67 Belt 68 Small pulley 71 Hydraulic cylinder 71a Cylinder tube 71b Piston 71c Lower space 71d Upper space 72 Directional switching valve 73 Flow rate adjusting valve 74 Pressure control valve 75 Pump 76a First 1 connection path 76b 2nd connection path 76c 3rd connection path 76d Oil discharge path 77 Hydraulic oil tank 78 Hydraulic circuit for load 80 Fitting part 81 Hydraulic cylinder 81a Cylinder Tube 81b Piston 81c Piston rod 81d First space 81e Second space 82 Direction switching valve 83 Pump 84a First connection path 84b Second connection path 84c Third connection path 84d Oil drain path 85 Hydraulic oil tank 86 Moving part 87 Holding hydraulic pressure Circuit 90 Contact portion 91 Hydraulic cylinder 91a Cylinder tube 91b Piston 91c Piston rod 91d Lower space 91e Upper space 92 Linear sensor 93 First servo valve 94 Second servo valve 95 Pump 96a First connection path 96b Second connection path 96c Third Connection path 96d Oil drain path 97 Hydraulic oil tank 100 Press device 102 Slide 102a Slide body 102b Mold mounting plate 105 Slide 105a Slide body 105b Mold mounting plate 105s Lower surface 107 Load applying portion 108 Slurry Id holding portion 171 Hydraulic cylinder 171a Cylinder tube 171b Piston 171c Piston rod 171d Lower space 171e Upper space 181 Fitted portion 181a Recessed portion 181b Protruding portion 182 Fitting portion 200 Press device 206 Slide drive portion 207 Load applying portion 208 Slide holding portion 211 Control unit 260 Servo motor (an example of an electric motor)
260a Drive shaft 261 Ball screw portion 261a Screw shape 262 Support portion 262a Through hole 263 Bearing 266 Transmission mechanism 271 Hydraulic cylinder 271a Cylinder tube 271b Piston 271c Piston rod 271d Inner space 271e Outer space 271f Tip 272 Load transmission mechanism 273 First connecting member 274 First 3 connecting member 275 2A connecting member 276 2B connecting member 277a first connecting portion 277b second connecting portion 277c third connecting portion 277d intermediate connecting portion 278 second connecting member 281 fitted portion 281a cylindrical portion 281b annular projection portion 281c Concave part 282 Fitting part 282a Convex part 282b Concave part 300 Stampable sheet 301 Preform material 400 Injection path 621 Teeth

Claims (16)

  1. 　上金型と下金型を用いて材料に対してプレス成形を行うプレス装置であって、
    　下面に前記上金型が取り付けられるスライドと、
    　電動モータと、前記電動モータの駆動を前記スライドに伝達する第１伝達機構と、を有し、前記スライドを昇降させる駆動部と、
    　油圧によって前記上金型を下向きに移動して前記材料に成形荷重を付与する荷重付与部と、
    　前記成形荷重の反力を受け止めるように前記スライドを機械的に保持する保持部と、
    　前記駆動部により前記スライドを所定の高さまで移動して前記保持部により前記スライドを保持した後に、前記荷重付与部により前記材料に前記成形荷重を付与する制御を行う制御部と、
    を備えた、プレス装置。     A press apparatus that performs press molding on a material using an upper mold and a lower mold,
    A slide on which the upper mold is attached to the lower surface;
    An electric motor, and a first transmission mechanism that transmits the drive of the electric motor to the slide, and a drive unit that raises and lowers the slide;
    A load applying unit configured to apply a forming load to the material by moving the upper mold downward by hydraulic pressure;
    A holding portion that mechanically holds the slide so as to receive a reaction force of the molding load;
    A controller for controlling the application of the molding load to the material by the load applying unit after the slide is moved to a predetermined height by the drive unit and the slide is held by the holding unit;
    A press device.
  2. 　前記制御部は、前記保持部により前記スライドを保持した後に、前記電動モータの駆動を停止する、
    請求項１に記載のプレス装置。     The control unit stops driving the electric motor after holding the slide by the holding unit.
    The press apparatus according to claim 1.
  3. 　前記保持部は、前記第１伝達機構を機械的に固定することによって、前記スライドを機械的に保持する、
    請求項１に記載のプレス装置。     The holding portion mechanically holds the slide by mechanically fixing the first transmission mechanism.
    The press apparatus according to claim 1.
  4. 　前記第１伝達機構は、ギヤを有し、
    　前記保持部は、
    　前記ギヤの歯の間に嵌合可能な嵌合部と、
    　前記ギヤの歯の間の位置に前記嵌合部を移動させる移動部と、を有し、
    　前記荷重付与部は、前記スライドを下方に移動することにより、前記材料に前記成形荷重を付与し、
    　前記保持部は、前記嵌合部を前記ギヤの歯の間に移動させて前記第１伝達機構を機械的に固定することによって、前記成形荷重の反力を受け止めるように前記スライドを機械的に保持する、
    請求項３に記載のプレス装置。     The first transmission mechanism has a gear;
    The holding part is
    A fitting portion that can be fitted between the gear teeth;
    A moving part that moves the fitting part to a position between the teeth of the gear,
    The load application unit applies the molding load to the material by moving the slide downward,
    The holding portion mechanically fixes the first transmission mechanism by moving the fitting portion between the gear teeth, thereby mechanically moving the slide so as to receive a reaction force of the molding load. Hold,
    The press apparatus according to claim 3.
  5. 　前記スライドは、
    　スライド本体と、
    　前記スライド本体の下側に配置され前記上金型が取り付けられる金型取付部と、を有し、
    　前記荷重付与部は、前記金型取付部を下方に移動することにより、前記材料に前記成形荷重を付与し、
    　前記保持部は、前記スライド本体を機械的に固定することによって、前記成形荷重の反力を受け止めるように前記スライドを機械的に保持する、
    請求項３に記載のプレス装置。     The slide
    The slide body,
    A mold mounting portion disposed on the lower side of the slide main body to which the upper mold is mounted;
    The load application unit applies the molding load to the material by moving the mold attachment unit downward,
    The holding unit mechanically holds the slide so as to receive a reaction force of the molding load by mechanically fixing the slide body.
    The press apparatus according to claim 3.
  6. 　前記スライドの上方に配置され前記スライドを移動可能に支持するクラウンと、
    　前記クラウンを前記スライドの上方に支持するアプライトと、を更に備え、
    　前記保持部は、
    　前記スライド本体に設けられ前記アプライトに向かって移動可能な嵌合部と、
    　前記アプライトの前記スライド側の側面に設けられた被嵌合部と、
    　前記嵌合部を移動させて前記被嵌合部に嵌合させる移動部と、を有し、
    　前記保持部は、前記嵌合部を前記被嵌合部に嵌合させることによって、前記成形荷重の反力を受け止めるように前記スライドを機械的に保持する、
    請求項５に記載のプレス装置。     A crown disposed above the slide and movably supporting the slide;
    An upright that supports the crown above the slide, and
    The holding part is
    A fitting portion provided on the slide body and movable toward the upright;
    A fitted portion provided on a side surface on the slide side of the upright;
    A moving part that moves the fitting part and fits the fitted part,
    The holding portion mechanically holds the slide so as to receive a reaction force of the molding load by fitting the fitting portion to the fitted portion.
    The press apparatus according to claim 5.
  7. 　前記スライドの上方に配置され前記スライドを移動可能に支持するクラウンを備え、
    　前記第１伝達機構は、
    　鉛直方向に配置され前記クラウンを前記スライドの上方に支持するボールネジ部と、
    　前記クラウンに固定され、前記ボールネジ部と螺合した支持部と、を有し、
    　前記ボールネジ部は、前記電動モータの駆動によって回転し、
    　前記駆動部は、前記ボールネジ部を回転させて前記支持部とともに前記クラウンを下方に移動させることによって前記スライドを前記所定の高さまで下降させる、
    請求項３に記載のプレス装置。     A crown disposed above the slide for movably supporting the slide;
    The first transmission mechanism includes:
    A ball screw portion arranged in a vertical direction and supporting the crown above the slide;
    A support portion fixed to the crown and screwed with the ball screw portion;
    The ball screw portion is rotated by driving the electric motor,
    The drive unit lowers the slide to the predetermined height by rotating the ball screw unit and moving the crown downward together with the support unit.
    The press apparatus according to claim 3.
  8. 　前記保持部は、
    　前記ボールネジ部に固定された被嵌合部と、
    　前記被嵌合部に嵌合可能な嵌合部と、
    　前記嵌合部を移動させて前記被嵌合部に嵌合させる移動部と、を有し、
    　前記保持部は、前記嵌合部を前記被嵌合部に嵌合させることによって、前記ボールネジ部を固定し前記成形荷重の反力を受け止めるように前記スライドを機械的に保持する、
    請求項７に記載のプレス装置。     The holding part is
    A fitted portion fixed to the ball screw portion;
    A fitting portion that can be fitted into the fitted portion;
    A moving part that moves the fitting part and fits the fitted part,
    The holding portion mechanically holds the slide so as to fix the ball screw portion and receive the reaction force of the molding load by fitting the fitting portion to the fitted portion.
    The press apparatus according to claim 7.
  9. 　前記荷重付与部は、前記スライドに配置された油圧シリンダを有し、前記油圧シリンダの油圧によって、前記材料に前記成形荷重を付与する、
    請求項１に記載のプレス装置。     The load applying unit has a hydraulic cylinder disposed on the slide, and applies the molding load to the material by the hydraulic pressure of the hydraulic cylinder.
    The press apparatus according to claim 1.
  10. 　前記スライドの上方に配置され前記スライドを昇降可能に支持するクラウンを更に備え、
    　前記荷重付与部は、
    　水平方向に移動可能なピストンロッドを持ち、前記クラウンに配置された油圧シリンダと、
    　前記油圧シリンダの力を増幅して前記スライドに伝達する倍力機構を持ち、前記ピストンロッドの前記水平方向の移動を上下方向の移動に変換して前記スライドに伝達する第２伝達機構と、を有する、
    請求項１に記載のプレス装置。     A crown disposed above the slide for supporting the slide so as to be movable up and down;
    The load applying portion is
    A hydraulic cylinder disposed on the crown having a piston rod movable in a horizontal direction;
    A second transmission mechanism that has a booster mechanism that amplifies the force of the hydraulic cylinder and transmits it to the slide, and converts the horizontal movement of the piston rod into a vertical movement and transmits the movement to the slide; Have
    The press apparatus according to claim 1.
  11. 　前記第２伝達機構は、
    　前記スライドの上側に固定され上下方向にガイドされるプランジャを有し、
    　前記倍力機構は、
    　前記ピストンロッドに対して回動可能に連結された第１部材と、
    　前記第１部材と前記プランジャの間を連結する第２部材と、
    　前記第１部材と前記クラウンの間を連結する第３部材と、を有し、
    　前記第２部材は、前記プランジャの上端部および前記第１部材のそれぞれに対して回動可能であり、
    　前記第３部材は、前記第１部材および前記クラウンのそれぞれに対して回動可能である、
    請求項１０に記載のプレス装置。     The second transmission mechanism is
    Having a plunger fixed to the upper side of the slide and guided in the vertical direction;
    The boost mechanism is
    A first member rotatably connected to the piston rod;
    A second member connecting between the first member and the plunger;
    A third member that connects between the first member and the crown;
    The second member is rotatable with respect to each of an upper end portion of the plunger and the first member,
    The third member is rotatable with respect to each of the first member and the crown.
    The press apparatus according to claim 10.
  12. 　前記第１部材と前記第２部材の連結部において、前記第３部材は前記第１部材と連結されている、
    請求項１１に記載のプレス装置。     In the connecting portion between the first member and the second member, the third member is connected to the first member.
    The press apparatus according to claim 11.
  13. 　前記上金型が水平に保たれるように前記上金型の傾斜を補正する傾き補正部を更に備え、
    　前記制御部は、前記荷重付与部によって前記材料に前記成形荷重を付与する際に、前記傾き補正部により前記上金型の傾斜を補正する、
    請求項１～１２のいずれかに記載のプレス装置。     A tilt correction unit for correcting the tilt of the upper mold so that the upper mold is kept horizontal;
    The control unit corrects the inclination of the upper mold by the inclination correction unit when the molding load is applied to the material by the load application unit,
    The pressing device according to any one of claims 1 to 12.
  14. 　前記傾き補正部は、
    　複数の油圧シリンダと、
    　作動油を複数の前記油圧シリンダに供給するポンプと、
    　前記油圧シリンダごとに設けられ、前記油圧シリンダに供給される作動油の量を調整するバルブと、を有し、
    　前記油圧シリンダのピストンロッドは、前記成形荷重が付与される際に前記スライドに下方から当接し、
    　前記制御部は、前記荷重付与部によって前記成形荷重を付与する際に、複数の前記油圧シリンダの前記ピストンロッドのストロークが同じ長さになるように前記バルブを制御する、
    請求項１３に記載のプレス装置。     The inclination correction unit
    A plurality of hydraulic cylinders;
    A pump for supplying hydraulic oil to the plurality of hydraulic cylinders;
    A valve that is provided for each hydraulic cylinder and adjusts the amount of hydraulic oil supplied to the hydraulic cylinder;
    The piston rod of the hydraulic cylinder contacts the slide from below when the molding load is applied,
    The control unit controls the valve so that strokes of the piston rods of the plurality of hydraulic cylinders have the same length when the molding load is applied by the load applying unit.
    The press apparatus according to claim 13.
  15. 　上金型と下金型を用いて材料に対してプレス成形を行うプレス装置の制御方法であって、
    　電動モータの駆動を前記上金型が取り付けられているスライドに伝達して前記スライドを所定の高さまで移動させる移動工程と、
    　成形荷重の反力を受け止めるように前記スライドを機械的に保持する保持工程と、
    　前記所定の高さから油圧によって前記上金型を下方に移動し前記材料に成形荷重を付与する荷重付与工程と、
    を備えた、プレス装置の制御方法。     A control method of a press apparatus that performs press molding on a material using an upper mold and a lower mold,
    A step of transferring the drive of the electric motor to the slide to which the upper mold is attached to move the slide to a predetermined height;
    A holding step of mechanically holding the slide so as to receive the reaction force of the molding load;
    A load application step of applying a molding load to the material by moving the upper mold downward by hydraulic pressure from the predetermined height;
    The control method of the press apparatus provided with.
  16. 　前記保持工程の後に前記電動モータの駆動を停止する停止工程を更に備えた、
    請求項１５記載のプレス装置の制御方法。     Further comprising a stopping step of stopping the driving of the electric motor after the holding step;
    The control method of the press apparatus of Claim 15.
PCT/JP2016/051271 2015-03-10 2016-01-18 Press device and method for controlling press device WO2016143386A1 (en)

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CN117680540A (en) * 2024-02-02 2024-03-12 杭州安耐特实业有限公司 Die for processing steel back

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