JP3708182B2 - Thin plate drawing apparatus and thin plate continuous processing equipment using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drawing forming apparatus for a thin plate of metal, synthetic resin or the like, and a thin plate continuous processing facility including the drawing forming device.
[0002]
[Prior art]
When forming molded products made of thin plates of metal or synthetic resin, such as bodies for vehicles, ships, aircraft, etc., frames for roofs, panels for furniture, equipment, etc. A die (die) was arranged, an upper die (punch) and a wrinkle presser were arranged on the crown side, and a thin plate was drawn into a predetermined shape with the upper die and the lower die.
However, in this forming apparatus, the upper die is pressed against the thin plate while holding the pressing force with the peripheral edge of the thin plate sandwiched between the die and the crease presser, so that the drawing force is applied. In order to remove the molded product from the lower mold after drawing, a stroke length of about 2.5 times the height H of the drawn product is required, which increases the overall height of the press and installs it. The cost of the building increases, which increases the cost and the cost of surrounding equipment such as cranes.
In the prior art, a wrinkle presser cylinder with a large output is required to raise and lower the wrinkle presser while maintaining a pressing force between the die and the wrinkle presser, and this wrinkle presser cylinder has a high pressure within the entire stroke of the drawing process. The operation reduces the stroke while keeping the oil. For this reason, there is a problem that not only a large amount of driving energy is consumed, but also the consumption energy causes a rise in heat of the hydraulic system, leading to instability of the hydraulic system.
[0003]
As a countermeasure against this, the applicant proposed a thin plate drawing apparatus in Japanese Patent Publication No. 5-65252.
In this prior art, a punch is arranged on the bed side of the frame so that it can be moved up and down, and a flat frame-like lower crease presser plate is provided on the upper surface of the bed, while a column column is provided with a crown that extends horizontally above the bed. A pulling cylinder is provided vertically on the crown, and an upper wrinkle press plate having a planar frame shape corresponding to the lower wrinkle press plate is connected to the piston rod. On the bed, wrinkle presser clamps for pressing down the wrinkle presser plate are arranged at positions corresponding to the four corner portions of the upper and lower wrinkle presser plates.
[0004]
Although this prior art can reduce the press stroke, the frame has a crown extending in the lateral direction, and a pulling cylinder for raising and lowering the upper wrinkle presser plate on the plane frame is provided vertically. The problem is that the open area outside the forming area is substantially narrow, and the work of feeding the thin plate into the die and taking out the molded product cannot be performed freely from any direction, which makes it difficult to improve the forming efficiency. was there. Further, since the crown and the pulling cylinder are provided, the apparatus is complicated and large, and the apparatus cost increases.
[0005]
[Problems to be solved by the invention]
The present invention was devised in order to solve the above-mentioned problems, and the object of the present invention is to make the stroke very short and the total height low, and to insert the material and take out the molded product in any direction. It is an object of the present invention to provide a thin plate drawing apparatus which can be freely performed, has a high forming efficiency and has a simple structure and a low cost as a whole.
In addition, another object of the present invention is a processing facility that can draw a thin plate into a three-dimensional shape and can automatically perform inline processing such as trimming and bending continuously and continuously, and at a low facility height. Is to provide.
[0006]
  In order to achieve the above object, according to the present invention, a punch that can be raised and lowered is arranged in a bed, and a wrinkle presser is fixed to the opening region of the punch lift hole, and the upper part of the bed outside the wrinkle presser is fixed. A plurality of clamp devices are arranged at intervals, and at least one of the clamp devices is configured to be translatable, and the translatable clamp devices include:Divided into multipleEquipped with separation dies that can be separated in the normal state and joined together when the clamp device is moved to form a crease presser that forms a pair with the crease presserA slide block in which at least one set of clamping devices is slidably disposed on a guide portion provided on the bed, a drive actuator attached to the bed and having an operating portion connected to the slide block, and a slide A main body swingably supported by a fulcrum provided on the block, and a presser actuator fixed to the slide block for raising and lowering the rear end of the main body, The rear area of the separating die is connected by connecting means, and the separating die at a position different from the connecting portion is supported by the slide block via a lift mechanism.It is a configuration.
  Other clamp devices other than the one set of clamp devices are for applying a pressing force to the separation dies when they are connected, and may be of a fixed position type, a translation type, or a swivel type. .
[0007]
  The separation die may have a flat frame shape, but does not stop there, and has a flat frame-shaped wrinkle pressing portion and a bulging portion recessed so as to form a cavity on the inner side when connected. Including what is. Further, in this case, the bulging portion includes a portion having a local processing portion.
[0008]
  In order to achieve another object of the present invention, the drawing apparatus is installed on a line, and the line has at least one punch having a punch capable of moving up and down in the bed, a separating die, and a clamping device. The processing equipment is installed in the front and back of the line, and the board loading and unloading equipment is installed before and after the line, and the transporting device that sequentially transfers the base and intermediate products to the drawing and other processing equipment. It is a thing.
[0009]
[Action]
  In claim 1, since the separating die is held by a set of translationally movable clamping devices, the wrinkle presser region is completely free space in a normal state, and the base plate is arranged in the wrinkle presser. If you move the device forwardDivided into multipleWhen the separation dies are combined and connected to form a die having a crease presser, and if all the clamping devices are operated in this state, the die is pressed to sandwich the base plate with the crease presser, and the punch is pressed in the bed. By raising, the base plate is drawn according to the shape of the die. If the clamping device is swung and retracted, the die is divided and becomes a separation die again, and the space above the wrinkle presser becomes free space, so that the product can be taken out freely.
In addition, at least one set of clamping devices is provided in the slide block, which is slidably disposed on a guide portion provided on the bed, a driving actuator which is attached to the bed 1 and whose operating portion is connected to the slide block, and the slide block. A main body that is swingably supported by the fulcrum, and a presser actuator that is fixed to the slide block and lifts and tilts the rear end of the main body, and the separation die is disposed at the front end of the main body. Since the rear area is connected by the connecting means, and the separation die at a position different from this connection portion is supported by the slide block via the lift mechanism, the movement of the separation die and the movement of the clamping device are performed by one actuator. Therefore, the device structure becomes simple.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 to 5 show a first embodiment of the present invention.
1 and 2, reference numeral 1 denotes a bed (frame). A punch lifting hole 10 is vertically provided in the center, and the punch 2 is lifted and lowered by a driving means 200 such as a hydraulic ram in the punch lifting hole 10. Is arranged. The punch 2 has a desired drawing shape. Reference numeral 3 denotes a frame block-like or frame plate-like wrinkle presser fixed on the bed in the opening region of the punch lifting hole 10 in an exchangeable manner.
4a and 4b are separation dies that are divided into two parts, and are located above the wrinkle presser 3. The separation dies 4a and 4b form a die hole 400 in which the inside of the crease presser 3 is substantially aligned with the inner side of the crease presser 3 in the combined state of FIGS. 3 and 4, and a flat frame-shaped crease presser 401 is formed behind the die hole 400. It has a flat U shape. A plurality of protrusions 40 are provided at intervals on the connecting end face of one separation die 4a, and a recessed portion 41 into which the protrusion 40 can be fitted is provided on the connecting end face of the other separation die 4b. ing.
[0011]
Reference numerals 5a and 5b denote a pair of clamp devices (hereinafter referred to as main clamp devices in this embodiment) disposed at portions on the bed corresponding to the two sides of the separation dies 4a and 4b, and reference numeral 6 denotes the separation dies 4a and 4b. This is a clamp device (hereinafter referred to as a sub-clamp device in this embodiment) disposed at a predetermined distance from each other on the bed corresponding to the other two sides.
In this embodiment, the main clamp devices 5a and 5b hold the separating dies 4a and 4b and in this embodiment, can be translated so as to approach and retreat on the wrinkle presser 3 on the bed.
Further, there are four sub-clamp devices 6 in this embodiment, and each can be turned on the bed.
[0012]
  First, the main clamp devices 5a and 5b are connected to a slide block 50 slidably disposed in groove-shaped guide portions 11 and 11 provided on the bed 1 and an operating portion 510 attached to the bed 1 to the slide block 50. The drive actuator 51, a lever-like main body 52 supported by a fulcrum 501 provided on the slide block 50 so as to be swingable, and tilted by raising and lowering the rear end portion of the main body 52 fixed to the slide block 50. And a presser actuator 53 for causing the presser to move.
  The rear end region of the separating die 4a (or 4b) is connected to the front end of the main body 52 by connecting means 54 such as a bolt, and the separating die 4a (or the position different from the connecting portion by the connecting means 54) is connected. 4b) is supported by the slide block 50 via a lift mechanism 55, whereby the separation die 4a (or 4b) is normally held horizontally from the upper surface of the wrinkle presser 3 as shown in FIG. Yes.
  The drive actuator 51 and the presser actuator 53 are, for example, hydraulic cylinders. The lift mechanism 55 includes, for example, a headed rod 550 that is fixed to the slide block 50 through a through hole provided in the separation die 4a (or 4b), an upper surface of the slide block 50, and the separation die 4a (or 4b). Interposed around the headed rod 550 between the lower surfaces ofElastic body 551For example, it consists of a compression spring and a urethane pad.
[0013]
The first embodiment will be described in another expression. The lift mechanism 55 is attached to the slide block 50 in which the separation dies 4a and 4b are slidably disposed in the groove-shaped guide portions 11 and 11 provided in the bed 1. A main clamp device 5a (5b) having a main body 52 and a pressing actuator 53 is provided on the slide block 50, and a separation die 4a (4b) is connected to a front end portion of the main body 52 via a connecting means 54. It is connected.
[0014]
The sub-clamp device 6 is normally placed in the unclamping position as shown in FIGS. 1 and 2, and when the separating dies 4a and 4b are combined to form a die, the sub-clamping device 6 is displaced to the clamping position and is connected to the combined dies. This is for pressing the wrinkle presser 401, and in this embodiment is a swivel type.
That is, as shown in FIGS. 3 and 5, a lever-like main body 62 that is swingably supported by a fulcrum portion 601 provided on the bed 1, and a rotation for turning the main body 62 to a required rotation angle together with the fulcrum portion 601. A mechanism 61 and a presser actuator 63 for raising and lowering and tilting the rear end of the main body 62 are provided. The main body 62 has a clamp portion at the front end.
The rotating mechanism 61 includes a rotating shaft 610 that is directly connected to the fulcrum 601 and is rotatably supported on the bed 1 by a bearing 611, and a driving unit 612 that rotates the rotating shaft 610. The driving unit 612 is an example of this example. In addition to sprockets and chains, gears, racks and pinions are optional.
The driving means 612 may be independent for each sub-clamp device 6, but is preferably linked so that all or one side of the sub-clamp device 6 operates simultaneously. For example, a hydraulic cylinder is used as the presser actuator 63, and this is provided at the bed portion at the operating position where the main body 62 is turned.
[0015]
In FIG. 2, F is a base plate W or a product conveying device, and is arbitrary such as a crane. In this example, F is a movable body f that can run freely on a beam mounted above the device B of the present invention._ThreeEquipped with the moving body f_ThreeActuator f_FiveWork lift means f that can be raised and lowered freely₆And the work lift means f₆Has suction elements such as vacuum pads and electromagnets.
[0016]
6 to 8 show an embodiment of the sub-clamp device 6.
FIG. 6 shows the same turning type as that used in the first embodiment.
FIG. 7 is a translation type and has the same structure as the main clamping devices 5a and 5b. That is, the slide block 60 slidably arranged on the guide portions 11, 11 provided on the bed 1, the drive actuator 65 attached to the bed 1 and the operating portion 650 connected to the slide block 60, and the slide block 60 It has a main body 62 supported by a provided fulcrum 601 in a swingable manner, and a presser actuator 63 which is fixed to the slide block 60 and lifts and tilts the rear end of the main body 62.
In the case of this mode, the slide block 60 is normally returned backward by the drive actuator 65 like a virtual line, the rear portion of the main body 62 is pulled downward by the presser actuator 63, and the front end portion (clamp portion) is appropriately adjusted. It is held to open above the wrinkle presser.
[0017]
8 is a fixed position type, and includes a fixed block 67 provided on the bed 1, a main body 62 supported by a fulcrum 601 provided on the bed 1, and a main body 62 fixed to the fixed block 67. It has a presser actuator 63 for raising and lowering the rear end part and tilting it. In the normal state, the main body 62 tilts backward, and the front end part for clamping is opened like a virtual line.
The sub-clamp device 6 in the first embodiment may be the sub-clamp device shown in FIGS.
[0018]
9 and 10 show a second embodiment of the present invention.
In the second embodiment, the separation dies 4a and 4b are not a translational movement type but a undulation type and are separated from the clamping device.
More specifically, the bed 1 is provided with a plurality of hinge mechanisms 7, 7 at a portion spaced from the wrinkle presser 2, and the rear ends of the separating dies 4 a, 4 a pivot on the pivots 70, 70 of the hinge mechanisms 7, 7. It is worn. The bed portion at a position displaced from the clamp devices 5a and 5b is provided with a recessed portion 103, and a driving actuator 8 composed of a swing-type cylinder or the like is pivotally attached thereto, and an operating portion 80 of the driving actuator 8 is provided. A rear end portion of an arm (link) 81 connected to the separation die 4a (or 4b) is pivotally attached to the piston rod (in this example).
Thereby, in the normal state, the separation dies 4a and 4b are erected on the bed as shown in FIGS. 9A and 10A, and the operation of the driving actuator 8 causes the separation dies 4a and 4b to stand. ) To form a die 4 that is collapsed horizontally as shown in FIG.
Needless to say, the pivots 70 and 70 and the separation dies 4a and 4b can be relatively moved up and down in accordance with the thickness of the base plate W and the like. This may be achieved by increasing the pin hole diameter at the rear end portion of the separating dies 4a and 4b through which the pivots 70 and 70 are inserted, forming a long hole and a gap between the slits, or adopting a floating hinge structure.
[0019]
The clamping devices 5a, 5b, 6 are of the swivel type in this embodiment, and the structure thereof is the same as that shown in FIG. Therefore, a description will be given with reference to FIG.
That is, a main body 52 that is swingably supported by a fulcrum part 501 provided on the bed 1 and that is pivotably supported by a rotation mechanism 56, and a presser for raising and lowering the rear end of the main body 52 to tilt. And an actuator 53. The front end portion of the main body 52 is a clamp portion.
The rotating mechanism 56 includes a rotating shaft 560 that is directly connected to the fulcrum 501 and is rotatably supported by the bed 1 by a bearing 561, and a driving unit 562 that rotates the rotating shaft 560. The driving unit 562 is a sprocket and a chain. Besides, gears, racks and pinions are optional. For example, a hydraulic cylinder is used as the presser actuator 53, and this is provided at the bed portion of the operating position where the main body 52 is turned.
Of course, the clamping devices 5a, 5b and 6 may be of a translation type as shown in FIG. 7, and this is also included in the present invention.
[0020]
11 and 12 show a third embodiment of the present invention.
In this embodiment, the separating dies 4a and 4b are not in the form of a flat frame, but a cup-shaped closed drawing space is formed when they are combined. That is, the flat plate portion 401 that should form a flat frame-shaped wrinkle pressing portion and the bulging portion 402 that is recessed so as to form a cavity (mold surface) of a required shape are integrally provided. The bulging portion 402 substantially matches the contour shape of the punch 2.
Positioning projections 40 and recessed portions 41 are respectively arranged at predetermined intervals on the facing end surfaces of the separation dies 4a and 4b facing each other.
The separation dies 4a and 4b are held by main clamp devices 5a and 5b as in the first embodiment, and the main clamp devices 5a and 5b are of the translation type. Since the structures of the main clamp devices 5a and 5b are the same as those of the first embodiment, the same reference numerals are given to the same portions to refer to them, and the description will be omitted.
The sub-clamp device 6 in the third embodiment may be any of the modes shown in FIGS.
In some cases, the separating dies 4a and 4b may be undulating types as in the second embodiment. In this case, the protrusion 40 and the recessed portion 41 are not provided. Further, the main clamp devices 5a and 5b are of a swing type or a translation type.
[0021]
FIG. 13 shows a fourth embodiment of the present invention. A required portion of one or both of the drawing dies 402 of the separation dies 4a and 4b of the third embodiment is provided with a local processing portion 9 on the shoulder portion, for example. 2 corresponding positions, for example, a die portion 20 is provided at the shoulder portion. The local machining unit 9 is connected to, for example, a local machining actuator 90 that is fixed to the outside of the bulging portion 402 and the operating rod extends into a hole that penetrates the thickness of the bulging portion 402, and the working rod of the local machining actuator 90. And a tool 91 that is pushed into the die portion 20 when the local processing actuator 90 is actuated. As the tool 91, an arbitrary tool such as a drawing punch or a punch for punching is selected.
[0022]
The above description is only a few examples of the present invention, and can take various forms.
That is, the separation dies 4a and 4b are divided into two in this embodiment, but may be divided into three or four.
In the present invention, the type shown in the first embodiment or the second embodiment and the type shown in the third embodiment or the fourth embodiment are arranged in series, and the former type is obtained by sequentially transporting the raw plates to them. The first drawing is performed, and the second drawing is performed by the latter die. Alternatively, the third embodiment and the fourth embodiment are arranged in series to perform the first drawing and the second drawing.
[0023]
14 to 17 show an example of a thin plate continuous automatic processing facility including the device of the present invention, and B is a drawing device according to the present invention. The diaphragm device B may be one of the first to fourth embodiments. In this example, the third embodiment shown in FIGS. 11 and 12 is used, and the first process section of the line is used. Is arranged.
At least one other processing device is disposed downstream of the expansion device B. This processing apparatus includes a punch 2 disposed on a bed 1 so as to be movable up and down, and separation dies 4a and 4b and clamp devices 5a, 5b and 6 which can be translated or raised on the bed.
In this embodiment, as a processing device, a restric device C is provided downstream of the expansion device B.₁Is disposed downstream of the trim or / and side piercing device C.₂Is disposed downstream of this, and the bending apparatus C_ThreeIs arranged.
[0024]
Restorative device C₁For example, the separation dies 4a and 4b and the main clamping devices 5a and 5b of the third embodiment shown in FIGS. 11 and 12 and the translational sub-clamping device 6 shown in FIG. 7 are used.
Trim or / and side piercing device C₂For example, the apparatus of the fourth embodiment shown in FIG. 13 may be used, but instead of this, a trim or / and a side is formed on the bed in the region between the sub-clamp apparatuses 6 and 6 in the apparatus of the third embodiment. A piercing part c may be provided. The processed portion is, for example, an inclined block c that can be translated and moved.₁Machining actuator c₂Tool c advanced / retracted by_ThreeAre attached to the separating dies 4a and 4b._ThreeIs provided with a through hole for insertion and removal.
Bending machine C_ThreeFor example, using the device of the third embodiment, the actuator c is placed on the bed in the area between the sub-clamp devices 6 and 6.₂Bending tool c_FourIs attached. In this case, the separation dies 4a and 4b have half-cut tunnel-like parts 403 and 403 communicating with the bulging parts 402 and 402 forming the cavity, and the half-cut tunnel-like parts 403 and 403 are combined to form a tunnel-like part. Bending tool c in this state_FourHas entered. The punch 2 has a short height.
[0025]
A first conveying device D for transferring the base plate W from another place is provided on the side of the drawing device B, and a bending device C is provided._ThreeOn the side of the final product W_FourIs provided with a second transfer device E for transferring the sheet to another place, from the drawing device B to the bending device C_ThreeA transfer device F for loading and unloading is provided over. The 1st conveyance apparatus D and the 2nd conveyance apparatus E are arbitrary, such as a cart type and a belt conveyor type.
The transfer device F is a column f erected from the base floor.₁In addition, each of the devices B and C₁, C₂, C_ThreeThe beam f so as to cross over the punch₂This beam f₂A plurality of moving bodies f_ThreeEquipped with those moving objects f_ThreeEach of the lift actuators f_FiveWork holder f raised and lowered by₆The workpiece holder f₆Has a suction pad such as a vacuum pad or electromagnetic type.
[0026]
In the first embodiment, the drawing blocks are in the state shown in FIGS. 1 and 2 before the drawing is started, and the driving actuators 51 and 51 are operated to the protruding side. Thus, the separation dies 4 a and 4 b are waiting behind the wrinkle presser 3. Each sub-clamp device 6 is swung in advance by a rotation mechanism 61, and the front end portion (clamp) faces away from the separation dies 4a and 4b.
Accordingly, a complete free space is formed in the area of the wrinkle presser 3 as shown in FIGS. 1 and 2, and the base plate W is freely fed from above or from the left and right of FIG. can do. In FIG. 2, the moving body f mounted on the beam._ThreeMove to the stockyard and move the actuator f_FiveBy the work lift means f₆Is lowered to attract the substrate W and the actuator f_FiveBy the work lift means f₆Move up to the top of the crease presser_ThreeAnd lift the work lift means f at this position.₆And the suction of the base plate is released.
[0027]
If the base plate W is set in this way, the driving actuators 51 and 51 are then operated. As a result, the slide blocks 50 and 50 are advanced, whereby the separating dies 4a and 4b are also advanced and the projections 40 are moved. It fits into the mating recess 41 of the other party and is joined together. The die 4 is now assembled. When the presser actuator 53 is operated together with this, the main body 52 tilts with the fulcrum portion 501 as a fulcrum, whereby the die 4 sinks against the elasticity of the elastic body 551 of the lift mechanism 55 toward the wrinkle presser 3. Pressed.
At the same time, each rotating mechanism 61 of the sub-clamp device 6 is operated and the pressing actuator 63 is operated. The main body 63 reaches the wrinkle pressing portion 401 of the die 4 at the front end, and the fulcrum portion 601 is moved at this position. It tilts as a fulcrum and is pressed against the wrinkle presser 3.
As described above, the base plate W is given a predetermined wrinkle pressing force to the peripheral portion, and if the driving means 200 is driven in this state, the punch 2 is raised, whereby the base plate W is drawn inward, and FIG. 3 to FIG. In this way, the die 4 is drawn through a die hole 400 inside the die 4.
[0028]
When the punch 2 is raised to a predetermined stroke and drawing is completed, the punch 2 is lowered and returned to the initial position, and the presser actuator 63 of each sub-clamp device 6 and the presser actuator 53 of the main clamp device 5 are unclamped. To operate. When the clamp state is released and the rotation mechanism 61 is operated, each sub-clamp device 6 is turned to a position where it does not come into contact with the die 4. Therefore, if the drive actuators 51, 51 are operated, the slide blocks 50, 50 are operated. As a result, the die 4 returns to the separating dies 4a and 4b, and moves to a position away from the wrinkle presser 3 together with the main clamp devices 5a and 5b as shown in FIGS.
As a result, the product remains on the wrinkle presser 3 and the space is completely free, so that the product can be taken out quickly and easily.
The drawing operation is completed by one operation as described above, and the drawing operation is performed by repeating the same operation thereafter.
[0029]
In the second embodiment, before the base plate W is inserted, since the driving actuators 8 are on the shortened side as shown in FIGS. 9A and 10A, the separating dies 4a and 4b are hinge mechanisms. 7, 7 are raised vertically or at a required angle on the bed 1, and in this example, the clamping devices 5, 5, 6 are swung to a swing position by the rotation mechanism 61.
In this state, the area above the wrinkle presser 3 and the area between the separation dies 4a and 4b are completely free space, so that the base plate W can be inserted and set freely and easily. In the drawing, the actuators 8 and 8 for driving are actuated. As a result, the actuating portion extends, so that the separating dies 4a and 4b are tilted inwardly via the arm 81 and directly above the base plate W. The dice 4 are formed by combining with the horizontal state.
[0030]
Therefore, the rotation mechanism 61 of the clamping devices 5, 5, and 6 is operated next, so that the main bodies 62 and 52 are positioned at the wrinkle pressing portion 401 of the die 4, so that the pressing actuators 63 and 53 are operated. Then, as in the first embodiment, the peripheral edge of the base plate W is creased by the crease presser 3 and the punch 2 is lifted in this state, as shown in FIGS. 9B and 10B. Drawing is performed.
After completion of the drawing, the punch 2 is lowered, the presser actuators 63 and 53 are rocked, and then the rotation mechanism 61 is operated. With this, the clamp devices 5, 5, and 6 return to the standby position. When the drive actuators 8 and 8 are operated to the shortened side, the die 4 returns to the separation dies 4a and 4b, tilts outward from the horizontal state, and returns to the initial position. After that, the product remaining on the wrinkle presser 3 can be taken out.
In the second embodiment, since the separation dies 4a and 4b tilt, there is no need for an outward movement distance for loading the base plate W as in the first embodiment, thereby miniaturizing the apparatus. There are advantages that can be made.
[0031]
In the third embodiment, the separation dies 4a and 4b are retracted together with the main clamping devices 5a and 5b as shown in FIGS. 11A and 12A before and when the base plate W is inserted. In this state, if the base plate W is inserted and set to the wrinkle presser 3 and the driving actuators 51 and 51 are operated in the same manner as in the first embodiment, the separating dies 4a and 4b are moved together with the main clamp devices 5a and 5b. The die 4 moves forward and is continuously joined by the fitting of the projection 40 at the tip and the recessed portion 41. In this die 4, a mold surface is formed by combining the recessed drawing portion 402 inside the flat plate portion 401 as a wrinkle pressing portion.
[0032]
And if each sub clamp device 63 is moved to an operation position and main clamp devices 5a and 5b and actuators 53 and 63 for press of each sub clamp device 63 are operated, flat plate part 401 of die 4 will be pressed by a main part. The peripheral edge of the base plate W is wrinkled. When the punch 2 is raised, the base plate W is drawn, and at this time, in this embodiment, the die 4 is sealed by the drawn portions 402 and 402, so that a die surface is formed, as shown in FIG. Further, the upper surface side of the base plate W is pressed against the mold surface by the punch 2 and is drawn with high shape accuracy.
Thus, when drawing is completed, after the punch is lowered, the main clamp devices 5a and 5b and the sub clamp device 6 are unclamped, the sub clamp device 6 is returned to the standby position, and the drive actuators 51 and 51 are operated to operate the main clamp devices. The clamp devices 5a and 5b are moved backward, the die 4 is separated and returned to the separation dies 4a and 4b again.
For this reason, the product is automatically exposed from the closed mold surface and is placed on the wrinkle presser 3 so that it can be quickly and easily taken out from an arbitrary direction such as above or from the side.
[0033]
In the fourth embodiment, as in the third embodiment described above, the punch 2 is raised to perform drawing, and when the local machining actuator 90 is operated in this state, the tool 91 of the local machining section 9 is moved to the die 4. It advances through the thickness of the drawing part 402 and enters the die part 20 of the punch 2. For this reason, an additional process part is formed in a part of drawing shape.
When this machining is completed, the local machining actuator 90 is operated to the return side to retract the tool 91, and the punch 2 is lowered. The rest is the same as the third embodiment.
In any of the embodiments, the punch 2 is on the bed side, and the die separating dies 4a and 4a are movable from the position of the wrinkle presser 3 to the outward position. It is very short and the work of loading and unloading the base plate is easy and has a high degree of freedom. Therefore, the number of strokes per minute can be greatly improved, and the height of the device is extremely low. The equipment of the apparatus is low and can be simplified.
[0034]
When the diaphragm device B of the present invention is incorporated in a line as shown in FIGS. 14 to 17, the base plates W are stacked and carried by the first transport device D as in the base plate loading step shown in FIG. The moving body f of the transfer device F_ThreeMoves up to the base plate and lifts up and down f_FiveWork holder f₆Descends and rises to attract and lift the base plate W. Therefore, the moving body f_ThreeIs stopped on the wrinkle presser 3 of the diaphragm device B. At this time, the expansion device B is in a state where the separating dies 4a and 4b are expanded as shown in FIGS. 11 (a) and 12 (b). Therefore, the lift actuator f_FiveAs the base plate W is lowered and raised, the base plate W is set on the wrinkle presser 3, and the drawing is performed as described above.
[0035]
First process product W formed by the drawing device B₁In the state where the separation dies 4a and 4b are expanded._ThreeTo workpiece holder f₆Is lifted by descending and ascending, and a wrist-like apparatus C including separation dies 4a and 4b having a bulging portion 402₁Transported over.
This restric device C₁Then, the separation dies 4a and 4b are expanded, and the moving body f_ThreeTo workpiece holder f₆Is lowered, the first process product is set on the wrinkle presser. In this state, the separating dies 4a and 4b are combined to form the die 4 having a closed mold surface, and the clamp devices 5a, 5b and 6 are operated, and the punch 2 is lifted so that the first process product is pressed against the mold surface. Re-drawn to high accuracy.
[0036]
Restorative device C₁When the re-striking process at the end of the separation dies 4a, 4b is expanded, the moving body f_ThreeWorkpiece holder f₆2nd process product W by lowering and rising₂Is lifted and adjacent trim or / and side piercing device C₂It is transferred to.
When the separation dies 4a and 4b of this apparatus are in the expanded state, the workpiece holder f₆Is lowered, the second process product is placed in the wrinkle presser, the separation dies 4a and 4b are united and the clamping devices 5a, 5b and 6 are operated and clamped. When it fits into the process product, the machining part c is activated, thereby the tool c_ThreePasses through the die 4 formed by coalescence, and the third process product W in which a hole or the like is formed_ThreeIt becomes.
When the machining is completed, the separation die is returned to the moving body f._ThreeWorkpiece holder f₆The third process product W by lowering and rising_ThreeIs lifted and the adjacent bending machine C_ThreeIt is transferred to.
[0037]
Then, the third process product is arranged in the wrinkle presser with the separating dies 4a and 4b being expanded, the separating dies 4a and 4b are closed to form the die 4, and the bending tool c_FourThe third process product is bent by the advance of the die 4 to the upper part of the tunnel, and the final product W is now bent._FourIt becomes.
Final product W_FourIs a moving object f_ThreeWorkpiece holder f₆Is lifted by being lowered and raised and sent to the second transfer device E, thereby being transferred to another place.
The above-described diaphragm device B and the wrist device C₁And trim or / and side piercing device C₂And bending machine C_ThreeOperate simultaneously. 15 shows a die set and a clamped state, FIG. 16 shows a processed state, and FIG. 17 shows an unclamped and a product removal state. Processed base plate W and each process product W₁, W₂, W_Three, W_FourAre sequentially transferred from left to right, so that production can be carried out continuously and efficiently with low equipment height and stroke.
[0038]
【The invention's effect】
  According to the first aspect of the present invention described above, the punch 2 that can be raised and lowered is arranged in the bed, and a plurality of wrinkle press portions that are divided into a plurality of pieces and can form a wrinkle presser 3 that forms a pair with the wrinkle presser 3 when combined. Since the separating dies 4a and 4b and the clamping devices 5a and 5b for applying force to the wrinkle pressing portion are arranged, the stroke including the product removal can be made very small, and therefore the total height of the device and the building Can be reduced in height.
  In addition, since the separating dies 4a and 4b are normally expanded, the upper portion of the wrinkle presser is completely free space, and it is possible to easily and quickly insert a base plate and take out a molded product from a desired direction. it can. For this reason, productivity can be greatly improved in combination with an increase in the number of strokes due to the reduction in stroke.Further, a set of clamping devices 5a and 5b is connected to the slide block 50, which is slidably disposed on the guide portions 11 and 11 provided on the bed 1 and the operating portion 520 is attached to the bed 1. A driving actuator 51, a main body 52 swingably supported by a fulcrum portion 501 provided on the slide block 50, and a presser fixed to the slide block 50 for raising and lowering and tilting the rear end portion of the main body 52. And the separation die 4a at the front end of the main body 52. ( Or 4b ) The rear area is connected by the connecting means 54, and the separation die 4a at a position different from this connecting portion ( Or 4b ) Is supported by the slide block 50 via the lift mechanism 55, the movement of the separation die and the movement of the clamping device can be performed by one actuator, and the structure of the apparatus is simplified.Excellent effects such as can be obtained.
[0039]
  Claim 6According to the above, since the separating dies 4a and 4b have the drawing part 402, a mold surface closed at the time of uniting is formed, so that it can be drawn into a highly accurate shape, and yet the base plate It is possible to obtain an excellent effect that it is possible to easily charge and take out the product.
  Claim 7According to the present invention, in addition to the effect of the sixth aspect, since it is possible to perform local processing simultaneously with the drawing of the product, it is possible to cover two processes with a single apparatus, and to achieve the excellent effect that the process can be simplified. It is done.
  Claim 8Therefore, since it has a separation die, it can be transported between the raw material and each process very easily and quickly, and therefore processing from the base plate to the final product including drawing can be performed with high efficiency. Since the height of the apparatus and the height of the transfer apparatus are low, the equipment cost is reduced, and an excellent effect that a high-performance and low-cost production line can be obtained.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment of the present invention in a state before starting drawing.
FIG. 2 is a cross-sectional view taken along line XX in FIG.
FIG. 3 is a plan view showing the first embodiment of the present invention in a drawn state.
FIG. 4 is a vertical side view of the same.
5 is a cross-sectional view taken along line YY in FIG.
FIG. 6 is a cross-sectional view showing a first aspect of the clamping device.
FIG. 7 is a cross-sectional view showing a second aspect of the clamp device.
FIG. 8 is a cross-sectional view showing a third aspect of the clamp device.
FIG. 9A is a plan view showing a second embodiment of the present invention in a state before starting drawing, and FIG. 9B is a plan view showing the same in a drawing process.
10A is a cross-sectional view showing a second embodiment of the present invention in a state before starting drawing, and FIG. 10B is a cross-sectional view showing the same in a drawing process.
11A is a plan view showing a third embodiment of the present invention in a state before starting drawing, and FIG. 11B is a plan view showing the same in a drawing process.
12A is a cross-sectional view showing a third embodiment of the present invention in a state before starting drawing, and FIG. 12B is a cross-sectional view showing the same in a drawing process.
FIG. 13A is a cross-sectional view showing a fourth embodiment of the present invention in a state before starting drawing, and FIG. 13B is a cross-sectional view showing the same in a drawing process.
FIG. 14A is a plan view showing an example of a continuous processing facility to which the present invention is applied in a state of inserting a base plate, and FIG. 14B is a longitudinal side view of the same.
15A is a plan view showing the equipment of FIG. 14 in a die-set clamp state, and FIG. 15B is a longitudinal side view of the same.
16A is a plan view showing the equipment of FIG. 14 in a machined state, and FIG. 16B is a longitudinal side view of the same.
17A is a plan view showing the equipment of FIG. 14 in a machined state, and FIG. 17B is a longitudinal side view of the same.
[Explanation of symbols]
2 Punch
3 Wrinkle presser
4a, 4b Separating dies
5a, 5b, 6 Clamping device
7,7 Hinge mechanism
8 Actuator for driving
11, 11 Guide part
50 slide blocks
51 Actuator for driving
52 Body 52
53 Actuator for presser
54 Connecting means
55 Lift mechanism
81 arms
401 Wrinkle presser
501 fulcrum
520 Actuator

Claims (8)

A punch (2) that can be raised and lowered is arranged in the bed, and a wrinkle presser (3) is fixed to the opening region of the punch lift hole, and a plurality of creases (3) are placed on the outer top of the wrinkle presser (3). The clamp devices (5a), (5b), (6) are arranged at intervals, and at least one of the clamp devices (5a), (5b) is configured to be translatable, and these are translated. Separating dies that can be divided into a plurality of clamping devices (5a) and (5b) and separated in a normal state and joined together when the clamping device is moved to form a wrinkle presser that forms a pair with the wrinkle presser (3). (4a) and (4b) are provided, and at least one set of clamping devices (5a) and (5b) slides on guide portions (11) and (11) provided on the bed (1). Slide block (50 And a drive actuator (51) attached to the bed (1) and having an operating part (520) connected to the slide block (50) and a fulcrum part (501) provided on the slide block (50) so as to be swingable. A main body (52), and a presser actuator (53) fixed to the slide block (50) for raising and lowering the rear end of the main body (52) to tilt the main body (52). The rear region of the separation dies (4a) and (4b) is connected to the front end portion by a connection means (54), and the separation dies (4a) and (4b) at positions different from the connection portion slide through the lift mechanism (55). A thin plate drawing apparatus supported by a block (50) . 2. The thin plate drawing apparatus according to claim 1, wherein the clamping device (6) is translatable. 2. The thin plate drawing apparatus according to claim 1, wherein the clamping device (6) is pivotable. The thin plate drawing apparatus according to claim 1, wherein the clamping device (6) is fixed in position. 2. The thin plate drawing apparatus according to claim 1, wherein the separating dies (4a) and (4b) are substantially U-shaped in a plane. When the separation dies (4a) and (4b) are joined together, a flat plate portion to form a flat frame-shaped wrinkle pressing portion (401) and a bulging portion (402) recessed to form a sealed cavity of a required shape The drawing apparatus for thin plates according to claim 1, which is continuously provided. The thin plate drawing apparatus according to claim 6, wherein the bulging portion (402) includes a portion having a local processing portion. The drawing apparatus according to any one of claims 1 to 7 is installed on a line, and on the line, there is provided at least one other punch having a punch capable of moving up and down in a bed, a separating die, and a clamping device. A processing device was installed, a raw plate carrying-in device and a product carrying device were provided before and after the line, and a conveying device for sequentially transferring the raw plate and intermediate products to the drawing device and other processing devices was provided above the line. A thin plate continuous processing facility.

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