WO2016104115A1 - Machine-outil - Google Patents

Machine-outil Download PDF

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Publication number
WO2016104115A1
WO2016104115A1 PCT/JP2015/084226 JP2015084226W WO2016104115A1 WO 2016104115 A1 WO2016104115 A1 WO 2016104115A1 JP 2015084226 W JP2015084226 W JP 2015084226W WO 2016104115 A1 WO2016104115 A1 WO 2016104115A1
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WO
WIPO (PCT)
Prior art keywords
workpiece
machine tool
mounting table
loading
axis
Prior art date
Application number
PCT/JP2015/084226
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English (en)
Japanese (ja)
Inventor
荒井　義博
Original Assignee
株式会社ジェイテクト
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Filing date
Publication date
Application filed by 株式会社ジェイテクト filed Critical 株式会社ジェイテクト
Publication of WO2016104115A1 publication Critical patent/WO2016104115A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/56—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting

Definitions

  • the present invention relates to a machine tool for processing a workpiece that is positioned and held on a table by a rotary tool mounted on the spindle while relatively moving the spindle and the table while rotating the spindle about an axis.
  • the machine tools described in Patent Documents 1 and 2 are horizontal machining centers, and a work piece conveyed by a conveyor device disposed above the table is moved up from the origin position and carried into the table. . Then, the machine tool lowers the table, positions it at the machining position, and relatively moves the spindle and the table while rotating the spindle around the axis to process the workpiece. After the completion of machining, the machine tool raises the table from the machining position, carries the workpiece to the conveyor device, lowers the table to the origin position, and waits until the next workpiece is conveyed by the conveyor device.
  • the table In the above-described machine tool, it is necessary to move the table not only when processing the workpiece held on the table but also when loading and unloading the workpiece with respect to the conveyor device.
  • the table can be moved with a relatively short stroke when machining the workpiece, but the table movement when the workpiece is carried in and out has a longer stroke than when machining the workpiece.
  • the table has high rigidity so that it can be moved with high accuracy and high speed while supporting the workpiece during machining. Therefore, the table needs a certain size. Since a large space is required for a large table to move along the above long stroke, the machine tool itself tends to increase in size.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide a machine tool that can be miniaturized.
  • the machine tool of the present invention includes a bed, a headstock provided on the bed so as to be movable in a horizontal direction, a spindle provided on the headstock and capable of mounting a rotary tool for processing, and a vertical on the bed.
  • the workpiece is placed and supported so as to be movable in the same direction as the table relative to the column, and the workpiece can be transferred between a predetermined loading / unloading position and the table by the movement.
  • a mounting table is provided in the bed so as to be movable in a horizontal direction, a spindle provided on the headstock and capable of mounting a rotary tool for processing, and a vertical on the bed.
  • FIG. 1 is an overall configuration diagram when a machine tool is viewed from the front side. It is a whole block diagram when the machine tool of FIG. 1A is seen from the side. It is a whole block diagram when the machine tool of FIG. 1A is seen from the upper surface side. It is a perspective view which shows the cradle provided with the carrying in / out apparatus and the jig
  • the machine tool 1 has three rectilinear axes (X-axis (horizontal direction), Y-axis (vertical direction), Z-axis (horizontal direction)) and one rotary axis (A-axis (X-axis) as drive axes. In parallel))).
  • the X-axis direction is the left-right direction (width direction) of the machine tool 1
  • the Z-axis direction is the front-rear direction (depth direction) of the machine tool 1
  • the Y-axis direction is the up-down direction (height direction) of the machine tool 1.
  • the workpiece W to be machined by the machine tool 1 will be described below using a cylinder block of a vehicle engine as an example.
  • the machine tool 1 includes a bed 2, a saddle 3, a headstock 4, a main shaft 40, a column 5, a table 6, a tilt device 7, and loading / unloading.
  • a device 8, a jig 9, a control device 10 and the like are provided.
  • a conveyor device 20 that can transport the workpiece W is disposed above the front surface of the machine tool 1.
  • the machine tool 1 includes a plurality of rotary tools that can be mounted on the main shaft 40, and an automatic tool changer that can automatically change the tool with respect to the main shaft 40.
  • the bed 2 has a rectangular parallelepiped shape and is disposed on the floor.
  • a columnar column 5 is erected on the front side on the bed 2 .
  • a saddle 3 is provided behind the column 5 on the bed 2 so as to be movable in the X-axis direction.
  • the saddle 3 has a rectangular parallelepiped shape, and is provided so as to be movable in the X-axis direction along a pair of guide members 31 and 31 provided on the bed 2 and extending in the X-axis direction.
  • An X-axis motor 33 having a ball screw mechanism 32 that moves the saddle 3 in the X-axis direction is provided between the pair of guide members 31.
  • a headstock 4 is provided so as to be movable in the Z-axis direction with its axis line oriented in the Z-axis direction.
  • the saddle headstock 4 is provided so as to be movable in the Z-axis direction along a pair of guide members 41 and 41 provided on the saddle 3 and extending in the Z-axis direction.
  • a Z-axis motor 43 having a ball screw mechanism 42 that moves the headstock 4 in the Z-axis direction is provided between the pair of guide members 41.
  • the headstock 4 includes a main shaft 40 that is rotatably supported and a main shaft motor 44 that has a gear mechanism that rotates the main shaft 40 about the Z axis.
  • a rotary tool T for processing the workpiece W is detachably attached to the tip of the main shaft 40. That is, the rotary tool T is attached to the main shaft 40 so as to be rotatable around the Z axis.
  • the column 5 includes a pair of leg members 51 and 51 and a bridging member 52 spanned between the pair of leg members 51 and 51.
  • One leg member 51 is provided with the control device 10.
  • a Y-axis direction guide surface of the table 6 is formed, and the table 6 is provided to be movable only in the Y-axis direction.
  • the table 6 is provided so as to be movable in the Y-axis direction along a pair of guide members 61 and 61 extending in the Y-axis direction provided on the opposing surfaces of the pair of leg members 51 and 51, respectively.
  • a pair of ball screw mechanisms 62 and 62 for moving the table 6 in the Y-axis direction are provided on the front surfaces of the pair of leg members 51 and 51, respectively, and a bridging member 52 corresponding to the upper ends of the pair of leg members 51 and 51.
  • Y-axis motors 63 and 63 having a pair of ball screw mechanisms 62 and 62 are provided at the upper positions, respectively.
  • a tilt device 7 is provided on the table 6 so as to be rotatable about the A axis.
  • the heel tilt device 7 includes a pair of tilt bases 71 arranged on the table 6 so as to face each other at a predetermined interval in the A-axis direction. On the pair of tilt bases 71, a pair of cradle 72 capable of rotating around the A axis is disposed opposite to each other at a predetermined interval.
  • One tilt base 71 is provided with an A-axis motor 73 having a gear mechanism for rotating (swinging) the cradle 72 around the A-axis.
  • the pair of cradle 72 is provided with a carry-in / out device 8 and a jig 9. Although the details will be described later, the carry-in / out device 8 is configured to be able to move the workpiece W up and down in the tilt device 7 by hydraulic pressure. Although the details will be described later, the jig 9 is configured to be able to position and fix the workpiece W lowered by the loading / unloading device 8 by hydraulic pressure.
  • the control device 10 controls the driving of the spindle motor 44 to rotate the rotary tool T, and the X-axis motor 33, the Z-axis motor 43, the Y-axis motors 63 and 63, and the A-axis motor 73.
  • the workpiece W and the rotary tool T are moved relative to each other about the X-axis direction, the Z-axis direction, the Y-axis direction, and the A-axis, thereby cutting the workpiece W.
  • the workpiece W is moved up and down by the loading / unloading device 8, and hydraulic control is performed in order to fix and unlock the workpiece W by the jig 9.
  • the conveyor device 20 is configured to be able to transport the workpiece W by a belt or a plurality of roller rows extending in the X-axis direction above the table 6.
  • the carry-in / out device 8 includes a mounting table 81, a pair of link mechanisms 82, a pair of guide bars 83, a pair of drive mechanisms 84, and the like.
  • the right drive mechanism 84 is not shown because it is hidden by the cradle 72.
  • the mounting table 81 includes a plate-like member 81b provided with a rectangular hole 81a, a pair of sliding members 81c for fixing and supporting both ends of the plate-like member 81b, and the like so that the workpiece W can be placed thereon. Composed.
  • the mounting table 81 has a lower rigidity than that of the table 6. Therefore, the mounting table 81 is formed in an area smaller than the area occupied by the table 6. That is, the mounting table 81 is formed smaller than the table 6.
  • the hole 81a of the plate-like member 81b has a pair of first jigs 9 of the jig 9 in the bore Wb (see FIG. 9) of the workpiece W when the mounting table 81 on which the workpiece W is placed is lowered. It is provided for passing the second clampers 9b, 9c.
  • the mounting table 81 is lowered and a fixing position (in this example, the lowermost position) where the workpiece W can be fixed by the jig 9 and the mounting table 81 is raised and the workpiece W is carried into the mounting table 81.
  • a mechanical or optical descending detection sensor 81sd and an ascending detection sensor 81su for detecting a loading / unloading position (in this example, the uppermost position) that can be unloaded are provided in the cradle 72.
  • the scissors sliding member 81c is provided with a ball-type guide bush 81d that can slide along the guide bar 83. Even if the pair of sliding members 81c to which the plate-like member 81b is fixedly supported is inclined when sliding along the two pairs of guide bars 83 by the pair of drive mechanisms 84, the balls of the guide bush 81d roll. Since the tilt is absorbed by the elastic deformation, the mounting table 81 can be moved up and down stably.
  • the sliding member 81c is provided with a mechanical or optical placement detection sensor 81s (see FIG. 4) that detects that the workpiece W is placed.
  • the eaves link mechanism 82 is configured in a pantograph shape in which the four links 82a, 82b, 82c, and 82d are rhombused, and each end is connected by four pins 82e, 82f, 82g, and 82h.
  • the lower pin 82e is rotatably supported by a support member 82s fixed to the cradle 72, and the upper pin 82h is rotatably supported by a sliding member 81c.
  • a columnar cam 82t for operation projects from the approximate center of the two lower links 82a and 82b.
  • the link mechanism 82 can expand the drive stroke of the drive mechanism 84 (cylinder stroke of the hydraulic cylinder 84a) to, for example, a lift stroke of 6 times, that is, the distance between the lower pin 82e and the cam 82t in the Z-axis direction, and the lower pin
  • the ratio of the distance in the Z-axis direction between the pin 82h and the upper pin 82h is 1: 6.
  • the pair of link mechanisms 82 are respectively arranged on both sides of the mounting table 81 and support the mounting table 81 so as to be movable up and down.
  • the scissors guide bar 83 is formed in a cylindrical shape.
  • the pair of guide bars 83 are respectively arranged on both sides of the link mechanism 82, and both ends of each guide bar 83 are fixedly supported by the cradle 72 and guide the raising / lowering of the mounting table 81.
  • the guide bar 83 protruding downward from the cradle 72 becomes longer as the lift stroke becomes longer. Therefore, since the guide bar 83 may interfere with the bed 2, the length of the lift stroke is restricted.
  • both ends of each guide bar 83 are fixedly supported by the cradle 72, the guide bar 83 and the bed 2 do not interfere with each other, and the length of the lift stroke is not restricted.
  • each guide bar 83 since both ends of each guide bar 83 are fixedly supported by the cradle 72, when it is necessary to replace the jig 9 depending on the shape of the workpiece W, the guide bar 83 is not required to be centered, which improves work efficiency. Improvements can be made. Further, by inserting and fixing a block member serving as a spacer on the lower end side of each guide bar 83, positioning and fixing with respect to the workpieces W having different heights can be performed.
  • the pair of guide bars 83 are disposed on both sides of the pair of link mechanisms 82, but may be configured on both sides of the one link mechanism 82. Further, although both ends of each guide bar 83 are fixedly supported on the cradle 72, a lower end of each guide bar 83 may be fixedly supported on the jig 9.
  • the saddle drive mechanism 84 includes a hydraulic cylinder 84a and a cam follower 84b in which a groove 84t in which the cam 82t can slide is formed.
  • the hydraulic cylinder 84a is fixed to the inner wall of the cradle 72 between the cradle 72 and the link mechanism 82 so that the cylinder rod 84c faces downward.
  • the cam follower 84b is formed in a rectangular parallelepiped shape and is fixed to the tip of the cylinder rod 84c.
  • the groove 84t is formed in an oval shape extending in the X-axis direction.
  • the pair of drive mechanisms 84 are configured to be able to move up and down the mounting table 81 by causing the pair of link mechanisms 82 to operate synchronously. Since the drive mechanism 84 having such a configuration can be disposed within the rhombus of the link mechanism 82, a limited space can be used effectively, and the carry-in / out device 8 can be downsized.
  • the jig 9 includes a pedestal 9a, a pair of first clampers 9b provided with an unillustrated oil passage, and a pair of second clampers 9c provided with an unillustrated oil passage.
  • the base 9 a is formed in a rectangular plate shape, and both ends are fixed to the bottoms of the pair of cradle 72.
  • a first clamper 9b, a second clamper 9c, a second clamper 9c, and a first clamper 9b are provided at predetermined intervals in the Y-axis direction.
  • Each first clamper 9b is formed in a cylindrical shape that can be inserted into the bore Wb of the workpiece W, and three claw portions 9d that can protrude in the horizontal direction by hydraulic pressure are formed on the upper peripheral surface of each first clamper 9b. Provided at equiangular intervals. Each first clamper 9b is inserted into the bore Wb of the workpiece W, and the three claw portions 9d protrude to press the inner wall of the bore Wb, thereby restricting the displacement of the workpiece W in the Y-axis direction. It is configured. Note that even if each first clamper 9b is provided with two claw portions 9d at intervals of 180 °, the positional deviation of the workpiece W in the Y-axis direction can be restricted.
  • Each second clamper 9c is formed in a cylindrical shape that can be inserted into the bore Wb of the workpiece W, and one claw portion 9e that can protrude in the Y-axis direction by hydraulic pressure is formed on the upper peripheral surface of each second clamper 9c. Is provided. The claw portions 9e of the pair of second clampers 9c are opposed to each other with a predetermined interval. Each second clamper 9c is inserted into the bore Wb of the workpiece W, and the pair of claw portions 9e protrudes to hold the inner wall between the bores Wb from both sides, whereby the position of the workpiece W in the Z-axis direction is determined. The deviation is configured to be regulated.
  • each first clamper 9b protrude to press the inner wall of the bore Wb to restrict the positional deviation of the workpiece W in the Y-axis direction
  • the pair of second clampers 9c The claw portion 9e protrudes and presses and holds the inner wall between the bores Wb from both sides to regulate the displacement of the workpiece W in the Z-axis direction.
  • the control device 10 includes a machine tool control unit 11 (machining control device), a carry-in / out device control unit 12 (carry-in / out control device), and the like.
  • the machine tool control unit 11 includes an X-axis drive control unit 111, a Y-axis drive control unit 112, a Z-axis drive control unit 113, an A-axis drive control unit 114, a main shaft drive control unit 115, and a conveyor control unit 116. And a processing control unit 117 and the like.
  • the carry-in / out device control unit 12 includes a workpiece detection unit 121, an elevation detection unit 122, a mounting table elevation unit 123, a workpiece fixing unit 124, and the like.
  • the machine tool control unit 11 is a numerical control (NC) device, and controls each of the units 111 to 117 based on commands of the NC program.
  • the carry-in / out device control unit 12 is a programmable logic controller (PLC), and controls the units 121 to 124 based on ladder logic or the like.
  • the X-axis drive control unit 111 is connected to the X-axis motor 33 and drives and controls the saddle 3 together with the headstock 4 in the X-axis direction.
  • the Y-axis drive control unit 112 is connected to Y-axis motors 63 and 63, and drives and controls the table 6 in the Y-axis direction.
  • the Z-axis drive control unit 113 is connected to the Z-axis motor 43 and drives and controls the headstock 4 in the Z-axis direction.
  • the A-axis drive control unit 114 is connected to the A-axis motor 73 and rotates (swings) the cradle 72 around the A-axis.
  • the spindle drive control unit 115 is connected to the spindle motor 44 and rotates the spindle 40 around the Z axis.
  • the machining control unit 117 confirms that the workpiece W is positioned and fixed to the jig 9 by a positioning and fixing signal of the workpiece W from the carry-in / out device control unit 12, and drives and controls the spindle motor 44 and the like.
  • the rotary tool T is rotated around the Z-axis, and the X-axis motor 33, Y-axis motors 63 and 63, the Z-axis motor 43, the A-axis motor 73, and the like are driven and controlled. Is relatively moved in the X-axis direction, the Y-axis direction, and the Z-axis direction, and the workpiece W is controlled by relative rotation about the A-axis.
  • the workpiece detection unit 121 detects that the workpiece W has been mounted on the mounting table 81 and that the workpiece W has been removed from the mounting table 81 by a sensor signal from the mounting detection sensor 81s. To do.
  • the raising / lowering detection unit 122 detects that the mounting table 81 has reached the fixed position where the mounting table 81 has been lowered most by a sensor signal from the lowering detection sensor 81sd, and detects that the mounting table 81 has reached the highest loading / unloading position. It is detected by a sensor signal from the sensor 81su.
  • the mounting table elevating unit 123 confirms that the workpiece W has been mounted on the plate-like member 81b by a detection signal from the workpiece detecting unit 121, and the hydraulic cylinder 84a of the drive mechanism 84 of the loading / unloading device 8.
  • the cylinder rod 84c of the hydraulic cylinder 84a is extended, and the cam 82t is slid in the X-axis direction in the groove 84t of the cam follower 84b, thereby operating the link mechanism 82 and lowering the mounting table 81.
  • the mounting table elevating unit 123 confirms that the mounting table 81 has reached the fixed position where it is lowered most, by the detection signal from the elevating detection unit 122, and stops the hydraulic control on the hydraulic cylinder 84a.
  • the mounting table elevating unit 123 confirms that the positioning and fixing of the workpiece W has been released by a signal for releasing the positioning and fixing of the workpiece W from the workpiece fixing unit 124, and drives the loading / unloading device 8. Hydraulic control is performed on the hydraulic cylinder 84a of the mechanism 84, the cylinder rod 84c of the hydraulic cylinder 84a is shortened, and the cam 82t is slid in the X-axis direction in the groove 84t of the cam follower 84b, thereby operating the link mechanism 82. The mounting table 81 is raised. In addition, the mounting table elevating unit 123 confirms that the mounting table 81 has reached the highest loading / unloading position based on the detection signal from the elevating detection unit 122, and stops the hydraulic control for the hydraulic cylinder 84a.
  • the workpiece fixing unit 124 confirms that the mounting table 81 has reached the lowest fixed position by a detection signal from the elevation detection unit 122, and hydraulically applies to the first and second clampers 9b and 9c of the jig 9. Control is performed and the workpieces W are positioned and fixed by protruding the claw portions 9d and 9e. Further, the workpiece fixing unit 124 confirms that the processing of the workpiece W has been completed by a processing completion signal from the processing control unit 125, and hydraulically applies to the first and second clampers 9 b and 9 c of the jig 9. Control is performed, and the claw portions 9d and 9e are retracted to release the positioning and fixing of the workpiece W.
  • the mounting table 81 of the loading / unloading device 8 is positioned at the highest loading / unloading position, and the saddle 3, the headstock 4, the table 6, and the tilt device. 7 is positioned at a predetermined origin position.
  • step S1 Yes in FIG. 5
  • step S2 the mounting table 81 is lowered (step S2 in FIG. 5).
  • the workpiece detection unit 121 detects that the workpiece W is mounted on the mounting table 81 based on a sensor signal from the mounting detection sensor 81s.
  • the mounting table elevating unit 123 performs hydraulic control on the hydraulic cylinder 84a of the drive mechanism 84, extends the cylinder rod 84c of the hydraulic cylinder 84a, and grooves in the cam follower 84b.
  • the cam 82t is slid outward in both directions to open the link mechanism 82 and lower the mounting table 81.
  • the loading / unloading device control unit 12 determines whether or not the mounting table 81 has reached the fixed position where it is lowered most (step S3 in FIG. 5), and as shown in the state C in FIG.
  • the fixing position is reached (step S3 in FIG. 5: Yes)
  • the jig 9 is operated to position and fix the workpiece W to the jig 9 (step S4 in FIG. 5).
  • the elevation detection unit 122 detects that the mounting table 81 has reached the lowest lowered position by the sensor signal from the lowering detection sensor 81sd.
  • the mounting table lifting / lowering unit 123 confirms that the mounting table 81 has reached the fixed position based on the detection signal from the lifting / lowering detection unit 122
  • the mounting table lifting / lowering unit 123 stops the hydraulic control on the hydraulic cylinder 84a.
  • the workpiece fixing portion 124 performs hydraulic control on the first and second clampers 9b and 9c of the jig 9, and protrudes the claw portions 9d and 9e to position and fix the workpiece W.
  • the carry-in / out device controller 12 outputs a machining command for the workpiece W to the machine tool controller 11.
  • the machine tool control unit 11 controls the machining of the workpiece W as shown in the state D of FIG. 6A (step S5 in FIG. 5). , S6).
  • the machining control unit 117 drives and controls the spindle motor 44 after confirming that the workpiece W is positioned and fixed by the positioning and fixing signal of the workpiece W from the workpiece fixing unit 124.
  • the rotary tool T is rotated around the Z axis, and the X-axis motor 33, the Y-axis motors 63 and 63, and the Z-axis motor 43 are driven to control the workpiece W and the rotary tool T in the X-axis direction, the Y-axis direction, Relative movement in the Z-axis direction is performed, and the machining of the workpiece W is controlled by driving and controlling the A-axis motor 73 to relatively rotate the workpiece W and the rotary tool T around the A-axis.
  • step S6 in FIG. 5 When the machine tool control unit 11 determines that the machining of the workpiece W has been completed (step S6 in FIG. 5: Yes), it outputs a machining completion signal for the workpiece W to the carry-in / out device control unit 12. .
  • the carry-in / out device control unit 12 inputs a machining completion signal of the workpiece W from the machine tool control unit 11, the jig 9 of the workpiece W is operated by operating the jig 9 as shown in a state E of FIG. 6A. 9 is released (step S7 in FIG. 5), and the mounting table 81 is raised (step S8 in FIG. 5).
  • the workpiece fixing unit 124 confirms that the machining of the workpiece W is completed by the machining completion signal from the machining control unit 117, the first and second clampers 9b, Hydraulic control is performed on 9c, and the claw portions 9d and 9e are retracted to release the positioning and fixing of the workpiece W. Then, when receiving a release signal for positioning and fixing the workpiece W from the workpiece fixing portion 124, the mounting table elevating / lowering portion 123 performs hydraulic control on the hydraulic cylinder 84a of the drive mechanism 84, and the cylinder rod of the hydraulic cylinder 84a. 84c is shortened, and the cam 82t is slid in both directions in the groove 84t of the cam follower 84b, thereby closing the link mechanism 82 and raising the mounting table 81.
  • the loading / unloading device controller 12 determines whether or not the loading table 81 has reached the highest loading / unloading position (step S9 in FIG. 5), and the loading table 81 is shown in the state F in FIG. 6A. Reaches the loading / unloading position (step S9 in FIG. 5: Yes), the workpiece W is unloaded onto the conveyor device 20 as shown in state G in FIG. 6A. Specifically, the elevation detection unit 122 detects that the mounting table 81 has reached the highest loading / unloading position based on a sensor signal from the elevation detection sensor 81su.
  • the mounting table elevating unit 123 confirms that the mounting table 81 has reached the carry-in / out position based on the detection signal from the elevating detection unit 122, the mounting table elevating unit 123 stops the hydraulic control on the hydraulic cylinder 84a. And the carrying in / out apparatus control part 12 confirms the presence or absence of the next workpiece W (step S10 of FIG. 5), and when there exists the next workpiece W, it returns to step S1 and repeats the above-mentioned process, When there is no next workpiece W, all the processes are ended.
  • the machine tool 1 includes a bed 2, a spindle stock 4 provided on the bed 2 so as to be movable in the horizontal direction, and a spindle 40 provided on the spindle stock 4 and on which a rotary tool T for processing can be mounted. And a column 5 erected on the bed 2 in the vertical direction, and the workpiece W is held when machining, and the workpiece 5 is machined by the rotary tool T in the vertical direction. And a table 6 that is movably supported. Furthermore, the workpiece W is placed and supported so as to be movable in the same direction as the movement direction of the table 6 with respect to the column 5. Possible mounting table 81. Thereby, the required amount of the vertical movement stroke of the table 6 can be reduced by the amount of movement of the mounting table 81.
  • the machine tool 1 operates the mounting table 81 in a state where the table 6 is positioned on the column 5 when the workpiece W is transported between the predetermined loading / unloading position and the table 6.
  • the operations of the headstock 4, the main shaft 40, and the table 6 in a state in which the loading table 81 is positioned on the table 6 when the workpiece loading / unloading device control unit (loading / unloading control device) 12 is processed and the workpiece W is processed.
  • a processing device control unit (processing control device) 11 for controlling.
  • the workpiece W is carried in and out and the machining of the workpiece W is controlled by moving the table. For example, when a clamping error occurs when the workpiece W is carried into the table, There is a problem that workability when eliminating a clamping mistake is not good.
  • the machine tool 1 of the embodiment has a loading / unloading device control unit (loading / unloading control) that controls the operation of the mounting table 81 when the workpiece W is transported between a predetermined loading / unloading position and the table 6. (Device) 12 and the operation of the mounting table 81, the operation of the table 6 with respect to the column 5 is controlled, and the work table W is positioned on the table 6 when the workpiece W is processed.
  • a machining device control unit (machining control device) 11 that controls the operations of the spindle 40 and the table 6 may be provided.
  • the lifting operation in the Y-axis direction of the mounting table 81 by the loading / unloading device 8 and the movement operation in the Y-axis direction of the table 6 by the Y-axis motors 63 and 63 are different.
  • the machine tool control unit 11 controls the operation of the table 6 during the operation control of the loading / unloading device 8 by the loading / unloading device control unit 12 to control the workpiece W with respect to the loading / unloading device 8. You may be made to assist in carrying in and out. Thereby, cycle time, such as carrying in / out of the workpiece W and machining, is shortened.
  • the mounting table 81 is provided on the table 6 and is formed in an area smaller than the area occupied by the table 6. That is, the mounting table 81 is formed smaller than the table 6. Accordingly, when the workpiece W is transported between the loading / unloading position and the table 6, the space for the machine tool 1 can be saved by using the mounting table 81. Further, in the machine tool 1 of the embodiment, the work table W is carried out by moving the mounting table 81 up and down, but in the conventional machine tool, the table W is moved and the work piece W is carried out. For this reason, when the table includes a tilt device, the operation cycle time of the conventional machine tool is longer than the operation cycle time of the machine tool 1 of the embodiment.
  • FIG. 6B shows this detail corresponding to FIG. 6A. Will be described with reference to FIG.
  • the table 60 of the conventional machine tool is positioned at a predetermined origin position.
  • state B of FIG. 6B when the workpiece W is conveyed by the conveyor device 20, the table 60 is raised and the workpiece W is carried into the table 60 as shown in state C of FIG. 6B. .
  • the machining of the workpiece W is controlled as shown in the state E of FIG. 6B.
  • the table 60 is raised to the loading / unloading position as shown in the state F of FIG. 6B, and the workpiece W is carried out to the conveyor device 20 as shown in the state G of FIG. 6B. To do.
  • the state H of FIG. 6B the table 60 is lowered to the origin position and waits.
  • the workpiece W is carried out to the conveyor device 20 without being affected by the tilt device 7, and the next workpiece W is transferred from the conveyor device 20. Can be brought in.
  • the table is raised to the vicinity of the conveyor, the workpiece W to be processed next due to being blocked by the side wall of the tilt device cannot move to the upper side of the table.
  • the table 60 is lowered to release the tilt device 70 from the conveyor device 20, and after the next workpiece W is conveyed, the table 60 is raised to the next.
  • the operation cycle time of the machine tool 1 of the embodiment is shortened compared to the operation cycle time of the conventional machine tool.
  • the carry-in / out device 8 is provided on the table 6, but may be provided on, for example, the leg 51 of the column 5 outside the table 6.
  • the carry-in / out device 8 has a lifting structure using a pantograph-type link.
  • a lifting structure using a cam or a lifting structure using a linear cylinder may be used.
  • the cam raising / lowering structure is provided with a guide bar 123 that guides the mounting table 81 in the Y-axis direction on the jig 9.
  • a cam 121 that contacts the lower surface side of the mounting table 81 and moves the mounting table 81 in the Y-axis direction along the guide bar 123 and a motor 122 that rotates the cam 121 are provided. Further, as shown in FIG. 11B, the elevating structure using the linear motion cylinder is fixed to the lower surface side of the mounting table 81, and an air cylinder 124 having a rod 124 a that moves the mounting table 81 in the Y axis direction along the guide bar 123. Is provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)
  • Feeding Of Workpieces (AREA)

Abstract

La présente invention concerne une machine-outil (1) qui comprend : un lit (2); une poupée de broche (4) disposée sur le lit (2) de manière à pouvoir se déplacer dans la direction horizontale; une broche principale (40) qui est disposée sur la poupée de broche (4) et sur laquelle un outil rotatif pour usinage (T) peut être monté; une colonne (5) qui est érigée sur le lit (2) dans la direction verticale; et une table (6) qui soutient une pièce de fabrication (W) pendant l'usinage et qui est soutenue par la colonne (5) de manière à pouvoir se déplacer dans la direction verticale lorsque la pièce de fabrication (W) est usinée par l'outil rotatif (T). La machine-outil comprend en outre un support de chargement (81) sur lequel la pièce de fabrication (W) est placée, qui est soutenu de manière à pouvoir se déplacer dans la même direction que le mouvement par rapport à la colonne (5) de la table (6), et par lequel la pièce de fabrication (W) peut être transportée entre une position de chargement et de déchargement prescrite et la table (6) au moyen du déplacement.
PCT/JP2015/084226 2014-12-26 2015-12-07 Machine-outil WO2016104115A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014264178A JP2016124037A (ja) 2014-12-26 2014-12-26 工作機械
JP2014-264178 2014-12-26

Publications (1)

Publication Number Publication Date
WO2016104115A1 true WO2016104115A1 (fr) 2016-06-30

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WO (1) WO2016104115A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113510520A (zh) * 2021-07-16 2021-10-19 中钞印制技术研究院有限公司 一种用于卧式机床的柱体工件上下机装置
TWI788767B (zh) * 2020-02-10 2023-01-01 日商Ｔｏｗａ股份有限公司 加工裝置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7061431B2 (ja) * 2017-01-30 2022-04-28 株式会社ジェイテクト 工作機械

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07330295A (ja) * 1994-06-13 1995-12-19 Steel Kogyo Kk 素材搬入用昇降式テーブル装置
JP2009279697A (ja) * 2008-05-21 2009-12-03 Mori Seiki Co Ltd 工作機械
CN103293880A (zh) * 2013-06-28 2013-09-11 上海和辉光电有限公司 两级式补正装置及曝光机基座
JP2014180718A (ja) * 2013-03-19 2014-09-29 Jtekt Corp 工作機械

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07330295A (ja) * 1994-06-13 1995-12-19 Steel Kogyo Kk 素材搬入用昇降式テーブル装置
JP2009279697A (ja) * 2008-05-21 2009-12-03 Mori Seiki Co Ltd 工作機械
JP2014180718A (ja) * 2013-03-19 2014-09-29 Jtekt Corp 工作機械
CN103293880A (zh) * 2013-06-28 2013-09-11 上海和辉光电有限公司 两级式补正装置及曝光机基座

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI788767B (zh) * 2020-02-10 2023-01-01 日商Ｔｏｗａ股份有限公司 加工裝置
CN113510520A (zh) * 2021-07-16 2021-10-19 中钞印制技术研究院有限公司 一种用于卧式机床的柱体工件上下机装置

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