Fixture for workpiece transfer device and storage method

Abstract

To provide a jig for a workpiece delivery device which enables reduction of interference between a workpiece delivery device and another machine tool when a machine tool including the workpiece delivery device is moved.SOLUTION: A part of a workpiece delivery device protrudes outward from an end of a cover member in a parallel arrangement direction in a state installation of the workpiece delivery device is completed. A jig for the workpiece delivery device has: a table slidably attached to a travel base; an attachment part to which the workpiece delivery device is attached; and an arm member which connects the table with the attachment part and holds the attachment part in a rotatable manner. The arm member holds the workpiece delivery device removed from the travel base and holds the workpiece delivery device within the cover member in a manner that the workpiece delivery device may rotate relative to the travel base in a state that the table is attached to the travel base and the workpiece delivery device is attached to the attachment part.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present disclosure relates to a jig used for a workpiece transfer device that executes workpiece transfer between two machine tools.

Background Art

[0002] For example, Patent Document 1 below describes a transfer jig used when transporting a machine tool. The transfer jig of Patent Document 1 has a fixing portion fixed to a base and a holding portion that holds a separate control panel provided separately from the machine tool behind the base. By attaching the transfer jig to the base and the separate control panel, the user can integrally transport the machine tool and the separate control panel.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, some machine tools are equipped with a workpiece transfer device that executes workpiece transfer between two machine tools. The workpiece transfer device is attached across two machine tools. And when trying to move with the workpiece transfer device attached when transporting such a machine tool, the workpiece transfer device attached to one of the two machine tools may interfere with the other machine tool. For this reason, a method for storing the workpiece transfer device in a more compact state during the movement of the machine tool is required.

[0005] The present disclosure has been made in view of the above problems, and an object thereof is to provide a jig for a workpiece transfer device and a storage method that can reduce interference between the workpiece transfer device and other machine tools when moving a machine tool equipped with the workpiece transfer device.

Means for Solving the Problems

[0006] In order to solve the above problems, this specification is a jig for a workpiece transfer device used for a workpiece transfer device that executes workpiece transfer with other machine tools while being attached to a machine tool, and the other machine tool is arranged side by side in the side-by-side direction with the machine tool in a state where installation is completed. The machine tool is capable of attaching the workpiece transfer device, and a traveling base extending in the side-by-side direction, The apparatus main body that performs processing on the workpiece, The traveling base The portion protruding from the apparatus main body in A cover member that covers the robot, and a robot that moves along the traveling base and executes workpiece transfer with the workpiece transfer device. The workpiece transfer device is , in a state where installation is completed covered by the cover member, Projects outward from the end of the cover member in the side-by-side direction and the portion that , the jig for the workpiece transfer device includes a table slidably attached to the traveling base, a mounting portion to which the workpiece transfer device is attached, and an arm member that connects the table and the mounting portion and rotatably holds the mounting portion. The arm member holds the workpiece transfer device removed from the traveling base in a state where the table is attached to the traveling base and the workpiece transfer device is attached to the mounting portion, and rotatably holds the workpiece transfer device with respect to the traveling base within the cover member. A jig for a workpiece transfer device is disclosed.

[0007] In addition, the content of the present disclosure is beneficial not only when implemented as a jig for a workpiece transfer device but also when implemented as a storage method for storing the workpiece transfer device with the jig for the workpiece transfer device.

Effects of the Invention

[0008] According to the jig for the workpiece transfer device and the storage method of the present disclosure, a jig for the workpiece transfer device (hereinafter sometimes referred to as a jig) can be attached to the traveling base, and the workpiece transfer device can be held by the attached jig. Then, by removing the workpiece transfer device from the traveling base and rotating the workpiece transfer device within the cover member, the portion protruding from the cover member in the juxtaposed direction can be stored within the cover member. As a result, when moving a machine tool equipped with the workpiece transfer device, it becomes possible to reduce interference between the workpiece transfer device and other machine tools.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Embodiments for Carrying out the Invention

[0010] Hereinafter, an embodiment embodying the machine tool of the present disclosure will be described with reference to the drawings. FIG. 1 shows a front view of the machine tool system 10 of this embodiment, showing the state where the installation of the machine tool system 10 is completed. FIG. 2 shows the state where the first and second cover members 14 and 15 in FIG. 1 are removed. As shown in FIGS. 1 and 2, the machine tool system 10 includes a first machine tool 11, a second machine tool 12, a reversing device 13, and the like. In the following description, as shown in FIGS. 1 and 2, based on the direction of viewing the machine tool system 10 from the front, the machine width direction of the machine tool system 10 is the left-right direction, the direction parallel to the installation surface of the machine tool system 10 and perpendicular to the left-right direction is the front-back direction, and the direction perpendicular to the left-right direction and the front-back direction is referred to as the up-down direction for explanation.

[0011] The first machine tool 11 includes a device main body portion 21, a first loader 22, a first operation portion 23, and a work discharge chute 24. The device main body portion 21 has a substantially box-shaped shape, and the front surface and the left and right side surfaces are covered by a device cover 25. The first machine tool 11 is, for example, a turret-type lathe, and a spindle device (not shown) that grips and rotates a work, a turret device (not shown) that performs processing on the work gripped by the spindle device, and the like are provided in the device main body portion 21. The user can access the processing space by opening the front door 25A provided at the center of the front surface of the device cover 25. Further, the first operation portion 23 includes, for example, a touch panel, operation switches, etc., and receives operation inputs from the user and changes the display on the touch panel.

[0012] Further, the second machine tool 12 is disposed on the right side of the first machine tool 11 and is arranged side by side with the first machine tool 11 in the left-right direction. The left-right direction is an example of the side-by-side direction of the present disclosure. Note that the side-by-side direction of the present disclosure is not limited to the left-right direction, and may be the front-rear direction, the up-down direction, or a direction forming a predetermined angle with respect to each direction. The second machine tool 12 has the same configuration as the first machine tool 11. Therefore, in the description of the second machine tool 12, the description of the parts having the same configuration as the first machine tool 11 will be appropriately omitted. The second machine tool 12 includes a device main body portion 31, a second loader 32, a second operation portion 33, and a temporary placement table device 34. The device main body portion 31 is covered with a device cover 35 having a front door 35A on the front surface and the like, and processes a workpiece by a turret device (not shown) or the like inside the device main body portion 31.

[0013] (Regarding the first and second loaders 22 and 32) Next, the first and second loaders 22 and 32 will be described. The second loader 32 of the second machine tool 12 has the same configuration as the first loader 22 of the first machine tool 11. Therefore, in the following description, mainly the first loader 22 will be described, and the description of the second loader 32 will be appropriately omitted. FIG. 3 shows a perspective view of the first loader 22. Note that FIG. 3 omits the illustration of the inversion device 13 attached to the traveling base 41.

[0014] The first loader 22 is, for example, a gantry-type workpiece transfer device and is attached to the upper part of the first machine tool 11. The first loader 22 has a traveling base 41 fixed to the upper part of a frame (not shown) provided within the device cover 25 (see FIG. 1) of the first machine tool 11. The traveling base 41 is, for example, a thick plate-shaped metal member having a predetermined thickness in the vertical direction, a constant width in the front-rear direction, and extending in the left-right direction. The traveling base 41 protrudes outward from the device main body 21 at both end portions in the left-right direction (see FIG. 2). As shown in the enlarged view of FIG. 3, on the upper surface of the traveling base 41, for example, there is one traveling rack 43 extending along the left-right direction and two traveling rails 44 arranged with the traveling rack 43 sandwiched therebetween in the front-rear direction. Each of the two traveling rails 44 is provided at each of the front end and the rear end of the upper surface of the traveling base 41. The traveling rack 43 and the two traveling rails 44 are disposed on the upper surface of the traveling base 41 along the left-right direction in a parallel state. On the front-side surface of the traveling rack 43, a plurality of tooth portions 43A are formed at predetermined intervals in the left-right direction.

[0015] In addition, the first loader 22 has a traveling table 45, a lifting device 46, and a pair of chuck mechanisms 47. The traveling table 45 is configured to be slidable along the two traveling rails 44 and moves in the left-right direction along the traveling rails 44 by driving a traveling motor built into the traveling table 45. For example, the traveling motor moves the traveling table 45 to an arbitrary position in the left-right direction by meshing a pinion (not shown) fixed to the output shaft with the tooth portion 43A provided on the traveling rack 43. The lifting device 46 is attached to the traveling table 45 and has a lifting arm 46A extending along the vertical direction. A chuck main body 48 is attached to the lower end portion of the lifting arm 46A. The output shaft of the lifting motor 46B of the lifting device 46 is drivingly connected to a rack 46C formed on the lifting arm 46A via a pinion (not shown). The lifting device 46 drives the lifting motor 46B to change the position of the lifting arm 46A in the vertical direction and change the position of the chuck main body 48 in the vertical direction.

[0016] A pair of chuck mechanisms 47 are attached to the chuck body portion 48. The pair of chuck mechanisms 47 are attached to the chuck body portion 48 in a state of facing in mutually different directions. The first loader 22 drives an air-operated rotary actuator (not shown) provided in the chuck body portion 48 to rotate the pair of chuck mechanisms 47 and change their positions. Further, the first loader 22 drives air cylinders (not shown) provided in each of the pair of chuck mechanisms 47 to open and close the chucks. The first loader 22 performs the transfer of the workpiece between the spindle device in the apparatus main body portion 21, the second reversing unit 62 of the reversing device 13, etc. Similarly, the second loader 32 of the second machine tool 12 performs the transfer of the workpiece between the spindle device in the apparatus cover 35, the first reversing unit 61 of the reversing device 13, etc.

[0017] (Regarding the reversing device 13) Next, the reversing device 13 will be described. The reversing device 13 reverses and transfers the workpiece between the first and second machine tools 11 and 12. As shown in FIG. 1, the reversing device 13 is covered by a first cover member 14 attached to the first machine tool 11 and a second cover member 15 attached to the second machine tool 12. The first cover member 14 is attached to the upper end of the right end portion of the apparatus main body portion 21 and is fixed to the apparatus main body portion 21 and the apparatus cover 25 by bolts or the like. The traveling base 41 has a portion protruding to the right from the apparatus main body portion 21 covered by the first cover member 14. The workpiece discharge chute 24 is disposed adjacent to the right side of the right side surface of the apparatus main body portion 21 and is fixed to the lower end portion of the first cover member 14. The workpiece discharge chute 24 is a device for discharging defective workpieces outside the machine. Further, the second cover member 15 is attached to the upper end of the left end portion of the apparatus main body portion 31 and is fixed to the apparatus main body portion 31 and the apparatus cover 35 by bolts or the like. The traveling base 49 has a portion protruding to the left from the apparatus main body portion 31 covered by the second cover member 15. The temporary placement table device 34 of the second machine tool 12 is disposed adjacent to the left side of the left side surface of the apparatus main body portion 31 and is fixed to the lower end portion of the second cover member 15. The temporary placement table device 34 is a device provided with a table or the like for placing the workpiece held by the second loader 32 for the user to check or the like.

[0018] Figure 4 shows a perspective view of the reversing device 13. As shown in Figure 4, the reversing device 13 includes a frame member 51, a first support member 52, a second support member 53, a third support member 54 (see Figure 9), a first reversing unit 61, and a second reversing unit 62. The frame member 51 is a substantially rectangular metal plate member having a predetermined width in the vertical direction and being long in the horizontal direction, and is attached with its plane facing forward. The first and second support members 52 and 53 have substantially the same shape, and are, for example, members formed by bending a rectangular steel material into an L shape. The first support member 52 is attached to the right end portion of the frame member 51 in the horizontal direction, and the second support member 53 is attached to the left end portion of the frame member 51.

[0019] The upper portion of the first support member 52 is bent forward, and in the state where the installation of the reversing device 13 shown in Figures 1 and 2 is completed, it is fixed to the lower surface of the left end portion of the traveling base 49 (see Figure 2) of the second machine tool 12 by a plurality of fastening members 57. Similarly, the upper portion of the second support member 53 is bent forward, and in the state where the installation of the reversing device 13 is completed, it is fixed to the lower surface of the right end portion of the traveling base 41 by a plurality of fastening members 58 (see Figure 2). The fastening members 57 and 58 are, for example, bolts and nuts. Incidentally, the fastening members 57 and 58 are not limited to bolts and nuts, and may also be screws, clamp members, etc.

[0020] Further, the lower portions of the first and second support members 52 and 53 face forward and are respectively fixed to the end portions of the frame member 51 in the left - right direction. Thereby, the reversing device 13 is fixed so as to be suspended from the first and second machine tools 11 and 12 by the first and second support members 52 and 53, and is held in a state spaced upward from the setting surface. The frame member 51 is installed, for example, in a state where its plane is along the vertical and horizontal directions. Note that the installation method of the reversing device 13 is not limited to the above - described method. For example, the reversing device 13 may include only the second support member 53 and may be configured to be attached only to the first machine tool 11. Also, the reversing device 13 may be configured to be attached above the traveling bases 41 and 49. For example, the first and second support members 52 and 53 may be bent upward to hold the reversing device 13 above the traveling bases 41 and 49.

[0021] The first reversing unit 61 includes an air cylinder 63, a link mechanism 64 that advances and retreats in the front - rear direction by the air cylinder 63, etc., and rotates between a position facing the front and a position facing the left direction. Also, the first reversing unit 61 includes a plurality of (three in this embodiment) chuck jaws 65, and drives a drive source (not shown) such as an air cylinder to open and close the chuck jaws 65 to hold the workpiece. The first reversing unit 61 performs the transfer of the workpiece with the second loader 32 of the second machine tool 12 at the position facing the front shown in FIG. 4. Further, the frame member 51 holds the first reversing unit 61 so as to be slidable. On the front surface of the frame member 51, a cylinder body 67A of a rodless cylinder 67 and a rail member 68 disposed above the cylinder body 67A are attached. The first reversing unit 61 is held by the cylinder body 67A and the rail member 68 so as to be slidable in the left - right direction, and moves in the left - right direction based on the drive of the rodless cylinder 67. The first reversing unit 61, for example, rotates to a position facing the left direction while gripping the workpiece received from the second loader 32 with the chuck jaws 65, moves to the left, and performs the transfer of the workpiece with the second reversing unit 62.

[0022] Similar to the first inversion unit 61, the second inversion unit 62 includes an air cylinder 71, a link mechanism 72, etc., and rotates between a position facing the front and a position facing the right direction. The second inversion unit 62 includes a plurality of (three in this embodiment) chuck jaws 73, and drives a drive source (not shown) such as an air cylinder to open and close the chuck jaws 73 to hold the workpiece. The second inversion unit 62 performs the transfer of the workpiece with the first loader 22 of the first machine tool 11 at the position facing the front shown in FIG. 4, and performs the transfer of the workpiece with the first inversion unit 61 approaching from the right-facing position. The second inversion unit 62 receives the workpiece from the first inversion unit 61 with the front and back reversed to invert the workpiece and deliver it to the first loader 22. Similarly, when the workpiece is transferred in the order of the second inversion unit 62, the first inversion unit 61, and the second loader 32 from the first loader 22, the inversion device 13 can invert and transfer the workpiece. Thereby, the inversion device 13 can invert and transfer the workpiece between the first and second machine tools 11 and 12. Incidentally, the third support member 54 is fixed to the rear of the frame member 51, and a processing box 76 that processes signals such as a solenoid valve 75 (see FIG. 9) used for various air cylinders and a cylinder switch attached to the air cylinder is attached.

[0023] Here, as shown in FIG. 1, the inversion device 13 is covered by a first cover member 14 attached to the first machine tool 11 and a second cover member 15 attached to the second machine tool 12. FIG. 5 shows a state in which the second machine tool 12 is temporarily moved to the right from the state shown in FIG. 1. As shown in FIG. 5, when the inversion device 13 is attached to the first machine tool 11, a part of the inversion device 13 protrudes to the right from the right end of the first cover member 14. The portion protruding from the first cover member 14 is a portion covered by the second cover member 15. For example, when the operator of the vender completes the test of the machine tool system 10 installed in the state shown in FIG. 1, the vender separates and ships the first machine tool 11 and the second machine tool 12. Alternatively, when the user wants to relocate the once-installed machine tool system 10 to another factory or the like, the user separates and relocates the first machine tool 11 and the second machine tool 12.

[0024] In such a case, for example, in order to lift and move the second machine tool 12 with a forklift, the reversing device 13 is separated from the traveling base 49 of the second machine tool 12, and the second machine tool 12 is moved leftward so as to extract the reversing device 13 from the second cover member 15 as shown in FIG. 5. On the other hand, the traveling base 49 protrudes outward from the device cover 35 on the right side of the second machine tool 12. Thereby, another machine tool or the like can be further installed on the right side of the second machine tool 12 to connect the reversing device 13. However, since the traveling base 49 protrudes, if a forklift is brought close from the left direction of the second machine tool 12, the protruding portion of the traveling base 49 may interfere with the forklift. The same applies when the first machine tool 11 is desired to be moved to the left side.

[0025] Also, even if the forklift is brought close and lifted from the front of the first and second machine tools 11 and 12, it is difficult to move the forklift in the left - right direction while lifted. Also, when trying to remove the reversing device 13 from the first and second machine tools 11 and 12 at once, not only the first and second support members 52 and 53 need to be removed, but also the air pipes of the air cylinders and the signal lines of the cylinder switches need to be removed, increasing the work load. Also, the work load increases when removing the first and second cover members 14 and 15. Therefore, the first machine tool 11 of the present embodiment uses the jig 77 for the workpiece transfer device (hereinafter sometimes simply referred to as a jig) shown in FIGS. 7 and 8 to store the reversing device 13 in the first cover member 14 while the first cover member 14 is attached to the first machine tool 11.

[0026] (Regarding the first and second cover members 14 and 15) FIG. 6 is a top view seen from above of a state in which the reversing device 13 is housed in the jig 77 within the first cover member 14. As shown in FIGS. 1 and 6, the first cover member 14 has, for example, a front cover 14A that covers the front surface of the reversing device 13, a rear cover 14B that covers the rear surface on the rear side of the reversing device 13, and a bottom cover 14C that covers the bottom surface of the reversing device 13. Each of the front and rear covers 14A and 14B is, for example, a rectangular metal plate that is long in the left-right direction, has the same shape as each other, and has the same length in the left-right direction.

[0027] Also, the bottom cover 14C is in a plate shape connected to each of the lower end portions of the front and rear covers 14A and 14B. The bottom cover 14C is fixed to the lower end portions of the front and rear covers 14A and 14B and closes the space between the lower end portions of the front and rear covers 14A and 14B. On the left side of the first cover member 14, a device cover 25 and a first loader 22 are arranged. Also, the first cover member 14 has openings on its right side surface and upper surface.

[0028] Also, the first cover member 14 is provided with a connecting plate 14D at the opening on the right side surface (see FIG. 6). The connecting plate 14D is a rectangular plate-shaped metal member having a predetermined width in the vertical direction and extending in the front-rear direction. The front end of the connecting plate 14D is fixed to the right end portion of the front cover 14A, and the rear end of the connecting plate 14D is fixed to the right end portion of the bottom cover 14C. The front and rear covers 14A and 14B are enhanced in rigidity by connecting a part of the right end portions by the connecting plate 14D. The connecting plate 14D is attached, for example, at the same height as the traveling base 41 in the vertical direction and is arranged with a slight gap to the right of the traveling base 41 in the left-right direction.

[0029] Further, the front cover 14A is fixed to the upper end of the right end portion of the apparatus main body 21 and at the front end of the apparatus cover 25, and is fixed in a state parallel to the vertical direction and the horizontal direction. In a state where the installation of the machine tool system 10 is completed, a predetermined gap is provided in the front-rear direction between the rear surface of the front cover 14A and the reversing device 13. The rear cover 14B is fixed to the upper end of the right end portion of the apparatus main body 21 and is fixed in a state parallel to the vertical direction and the horizontal direction. In a state where the installation of the machine tool system 10 is completed, a predetermined gap is provided in the front-rear direction between the front surface of the rear cover 14B and the reversing device 13. The rear cover 14B is fixed at a position separated from the front cover 14A by a predetermined distance 79 in the front-rear direction. The distance 79 is substantially the same as the length of the connecting plate 14D in the front-rear direction. This predetermined distance 79 is longer than the length 81 (see FIGS. 2 and 6) of the reversing device 13 in the horizontal direction. Therefore, as shown in FIG. 6, even if the reversing device 13 is rotated by 90 degrees between the front and rear covers 14A and 14B in the front-rear direction, the reversing device 13 can be accommodated between the front and rear covers 14A and 14B without contacting the front and rear covers 14A and 14B.

[0030] Further, the second cover member 15 of the second machine tool 12 has a front cover 15A that covers the front surface of the reversing device 13, a rear cover (not shown) that covers the rear surface, a bottom cover (not shown) that covers the bottom surface, and a connecting plate (not shown) that connects the front cover 15A and the rear cover, similar to the first cover member 14. The horizontal lengths of the front cover 15A and the rear cover of the second cover member 15 are shorter, for example, than those of the front and rear covers 14A and 14B. The front and rear covers 14A and 14B are arranged with a slight gap in the horizontal direction between the front cover 15A and the rear cover of the second cover member 15. Incidentally, the first and second cover members 14 and 15 may be fixed to each other with bolts or the like.

[0031] Further, as shown in FIG. 6, a chip conveyor 26 for discharging chips generated by machining and a control panel 27 provided with a breaker or the like are arranged behind the first machine tool 11. The rear cover 14B is arranged at substantially the same position as the front end portion of the control panel 27 in the front-rear direction.

[0032] (Regarding the jig 77) FIGS. 7 and 8 show perspective views of the jig 77. As shown in FIGS. 7 and 8, the jig 77 has an arm member 83, a pair of tables 84, and a bracket 85. The arm member 83 has a first metal member 86 and a second metal member 87, and has a substantially U-shaped overall shape, connecting the table 84 and the bracket 85. The first metal member 86 is formed, for example, by bending a plate-shaped metal member by approximately 90 degrees, and is an L-shaped metal member having a first side portion 86A and a second side portion 86B. The first and second side portions 86A and 86B have substantially the same length. A second metal member 87 is fixed to the first end portion 86C of the first side portion 86A.

[0033] The second metal member 87 is formed, for example, by bending a plate-shaped metal member, and has a long side portion 87A, a pair of short side portions 87B, and a pair of tip portions 87C. The long side portion 87A has a long plate shape in the front-rear direction when the jig 77 is attached to the traveling base 41 (see FIG. 10). Each of the pair of short side portions 87B is continuously formed at each of both ends of the long side portion 87A and extends in a direction perpendicular to the long side portion 87A. One of the pair of short side portions 87B of the second metal member 87 is fixed to the first end portion 86C by a plurality of fastening members 89 (such as bolts) and is fixed to the first side portion 86A. Each of the pair of tip portions 87C is continuously formed at each of the pair of short side portions 87B and extends in a direction perpendicular to each of the pair of short side portions 87B and approaching each other. Each of the pair of tip portions 87C is separated with a predetermined gap therebetween. The second metal member 87 is fixed to the first end portion 86C of the first metal member 86 and is arranged with the gap between the pair of tip portions 87C facing the second side portion 86B. Each of the pair of tables 84 is attached to the surface of the pair of tip portions 87C on the second side portion 86B side.

[0034] Each of the pair of tables 84 is fixed to each of the pair of tip portions 87C by a plurality of fastening members 91. Each of the pair of tables 84 is, for example, a ball retainer and can be mounted on each of the pair of traveling rails 44 (see FIG. 3) of the first loader 22. Each of the pair of tables 84 contacts a rotary ball bearing (a plurality of iron balls) with each of the pair of traveling rails 44 and slides along the traveling rail 44. The table 84 is, for example, the same member as the traveling table 45 (see FIG. 3) of the first loader 22.

[0035] Also, a bracket 85 is rotatably attached to the second end portion 86D of the second side portion 86B. The bracket 85 has, for example, a first plate portion 85A and a second plate portion 85B and is an L-shaped metal plate. Each of the first and second plate portions 85A and 85B is formed with substantially the same length and is formed with a length shorter than the lengths of the first and second side portions 86A and 86B of the first metal member 86. Also, the widths of the first and second plate portions 85A and 85B are longer than the widths of the first and second side portions 86A and 86B.

[0036] The first plate portion 85A is attached in a state where the back surface faces the second side portion 86B (the second end portion 86D). The first plate portion 85A is attached to the second end portion 86D by, for example, a fastening member (such as a bolt) 93 and has a metal collar or washer (not shown) inserted through the fastening member 93 between the second end portion 86D. Thereby, the bracket 85 is rotatably held with respect to the arm member 83.

[0037] In addition, two grooves 85C are formed around the portion where the fastening member 93 is attached to the first plate portion 85A. The pair of grooves 85C are, for example, arc-shaped grooves centered on the fastening member 93 and are continuously formed from a predetermined position to a position rotated by 90 degrees. The pair of grooves 85C have a symmetrical shape centered on the fastening member 93. A fastening member 95 is inserted into each of the pair of grooves 85C. As a result, the bracket 85 has its rotation range restricted, for example, to the range of the rotation position rotated by 90 degrees from the rotation position shown in FIGS. 7 and 8, and the rotation position is fixed by tightening the fastening member 95.

[0038] Also, two reinforcing ribs 85D are provided inside the first plate portion 85A and the second plate portion 85B. By providing the ribs 85D to increase the rigidity of the bracket 85, even when supporting the heavy reversing device 13, bending of the first and second plate portions 85A and 85B can be suppressed. Further, insertion holes 85E are respectively formed at two corner portions at the tip of the second plate portion 85B. The insertion holes 85E are formed through the second plate portion 85B. Also, as shown in FIG. 4, two mounting holes 101 are formed in the frame member 51 of the reversing device 13. The mounting holes 101 are formed through the frame member 51 and are formed above the rail member 68.

[0039] The reversing device 13 is fixed to the jig 77 by fastening members 97 inserted into each of the two mounting holes 101 and each of the two insertion holes 85E. As a result, the reversing device 13 is rotatably held with respect to the jig 77. It should be noted that the fastening members 89, 91, 93, 95, 97, and the fastening members 107, 109 (see FIG. 13) described later are not limited to bolts and nuts, and may be screws, clamp members, etc. Also, in addition to or instead of the fastening member 93, collar, and washer, a bearing member such as a ball bearing may be used to rotatably attach the bracket 85 to the second side portion 86B.

[0040] The mounting hole 101 of this embodiment is provided between a second support member 53 attached to the undercarriage 41 and a first support member 52 attached to the undercarriage 49 in the sliding direction of the first reversing unit 61, that is, the left - right direction. According to this, the mounting hole 101 can be provided between the portions of the frame member 51 supported by the first and second machine tools 11, 12 respectively, and the jig 77 can be attached to the mounting hole 101. In other words, the jig 77 can be attached between the two positions that support the reversing device 13 when the installation is completed. Therefore, after the jig 77 is attached to the reversing device 13, when the first and second support members 52, 53 that have been supporting are sequentially removed from the undercarriages 41, 49, the reversing device 13 can be more stably held by the jig 77 attached between the two support locations.

[0041] (Regarding the storage method using the jig 77) FIG. 9 shows the state of the reversing device 13 after the installation is completed. Incidentally, as will be described later, in actual work, the jig 77 can be installed and the storage work of the reversing device 13 can be executed with the second machine tool 12 and the first cover member 14 installed (without changing the position). However, in FIG. 9, in order to avoid making the drawing complicated, the illustration of the second machine tool 12, the first and second cover members 14, 15, the air piping, the signal line, etc. is omitted. The same applies to FIGS. 10 - 14 described later. Also, in the following description, in order to clarify the work procedure of the user (user, relocator, etc.), each work is described with symbols such as step (S) 1.

[0042] FIG. 10 shows a state in which the jig 77 is attached to the traveling base 41 and the inversion device 13 in the state where the installation shown in FIG. 9 is completed. As shown in FIG. 6, the front and rear covers 14A and 14B are fixed in a parallel state to each other and form an opening upward. For example, the user inserts and attaches the jig 77 from the opening above the front and rear covers 14A and 14B (S1). The user inserts the traveling base 41 into the portion surrounded by the first metal member 86 and the second metal member 87 from the right side of the traveling base 41 while attaching the pair of tables 84 to each of the pair of traveling rails 44. Thereby, the jig 77 can slide in the left - right direction along the traveling base 41. Further, the user arranges the tip of the bracket 85 (the portion where the insertion hole 85E is formed) behind the frame member 51 of the inversion device 13 in the above attachment.

[0043] In the state shown in FIG. 10, the jig 77 is arranged at a predetermined position, more specifically, at a position slightly inside (left side) from the right end of the traveling rail 44. When the jig 77 is arranged at this predetermined position with the table 84 attached to the traveling rail 44, each of the pair of insertion holes 85E provided in the bracket 85 is arranged at a position overlapping the pair of attachment holes 101 of the frame member 51 in the inversion device 13 in the completed installation state in the front - rear direction. In other words, the lengths of the long - side portion 87A, the first - side portion 86A, and the second - side portion 86B of the jig 77 and the vertical position of the insertion hole 85E are adjusted to positions where the insertion hole 85E overlaps the attachment hole 101 when the jig 77 is subjected to a predetermined slide movement. The insertion hole 85E is arranged behind the attachment hole 101 (see FIG. 12).

[0044] Therefore, in the case where the table 84 is arranged at a predetermined position on the traveling base 41 with the inversion device 13 attached to the traveling base 41, the arm member 83 of the present embodiment arranges the insertion hole 85E of the bracket 85 in the attachment hole 101. Thereby, just by attaching the table 84 to the traveling base 41 and sliding it to a predetermined position, the attachment hole 101 and the insertion hole 85E overlap, the fastening member 97 can be smoothly inserted, and the inversion device 13 can be easily fixed to the bracket 85. The load of the work of fixing the inversion device 13 to the jig 77 can be reduced.

[0045] Further, the running base 41 of the present embodiment has a running rack 43 and a pair of running rails 44 disposed with the running rack 43 interposed therebetween in the front-rear direction. The second metal member 87 holds each of a pair of tables 84 attached to each of the pair of running rails 44 in a state of straddling the running rack 43 (a state of wrapping around from above). The arm member 83 has the running base 41 inserted into a portion surrounded by the second metal member 87, the first side portion 86A, and the second side portion 86B in a state where a pair of tables 84 are attached to each of the pair of running rails 44. According to this, the pair of tables 84 can be attached to each of the pair of running rails 44 by inserting the running base 41 into the arm member 83. And the reversing device 13 can be supported by the arm member 83 provided so as to surround the running base 41.

[0046] Next, the user attaches the reversing device 13 to the jig 77 (S2). For example, the user screws the fastening member 97 into the insertion hole 85E and the mounting hole 101 from the rear to fix the reversing device 13 to the bracket 85 (S2). After the user executes S2, the user removes the reversing device 13 from the first and second machine tools 11, 12 (S3). The user loosens the fastening member 57 or removes it from the first support member 52 to separate the first support member 52 from the running base 49 (see FIG. 2) of the second machine tool 12 (S3). Note that FIGS. 10 to 13 illustrate a state where the fastening member 57 is attached to the first support member 52. Further, the user separates the second support member 53 from the running base 41 by loosening the fastening member 58 or the like (S3). As a result, the reversing device 13 is removed from the first and second machine tools 11, 12 and is in a state of being suspended by the jig 77.

[0047] Further, the arm member 83 has a second metal member 87 that holds the table 84 above the traveling base 41, a second side portion 86B that holds the bracket 85 below the traveling base 41, and a first side portion 86A that extends in the vertical direction and connects the second metal member 87 and the second side portion 86B. According to this, with the traveling base 41 as a fulcrum, the lower reversing device 13 can be supported by the second side portion 86B via the first side portion 86A. In other words, the balance of the reversing device 13 can be taken by the first side portion 86A extending in the vertical direction, and the reversing device 13 can be supported in a manner of being suspended from the traveling base 41.

[0048] Also, as shown in FIG. 8, the length from the portion where the second side portion 86B is connected to the first side portion 86A to the tip, that is, the length 103 of the second side portion 86B, is longer than the length 104 of the long side portion 87A. And, as shown in FIG. 10, when the jig 77 attached to the traveling base 41 is viewed from the right direction, the first side portion 86A and the bracket 85 are arranged with the traveling base 41 sandwiched therebetween in the front-rear direction (an example of the width direction of the present disclosure). According to this, the second end portion 86D that becomes the force point to which the weight of the reversing device 13 is applied can be supported by the first metal member 86 that wraps around from the rear side with respect to the second metal member 87 that becomes the fulcrum for supporting the reversing device 13. For this reason, the balance between the fulcrum and the force point can be taken by the first metal member 86, and the reversing device 13 can be supported more stably by the jig 77.

[0049] Next, as shown in FIG. 11, the user moves the jig 77 in the state where the reversing device 13 is suspended leftward, that is, in the direction approaching the device main body portion 21 (device cover 25) (S4). The reversing device 13 moves leftward integrally with the jig 77. The second reversing unit 62 of the reversing device 13 is disposed at a position close to the right side surface of the device cover 25. Also, the reversing device 13 is in a state of being housed entirely within the first cover member 14 (see FIG. 1) up to the right end portion (the end portion on the side of the first reversing unit 61), or in a state of protruding only partially (rightward) outside from the right end of the first cover member 14. The distance of sliding leftward from the state of FIG. 10 to the state of FIG. 11 is, for example, about 20 cm.

[0050] In the state shown in FIG. 11, the user rotates the reversing device 13 clockwise by 90 degrees (S5). As described above, the rotation range of the bracket 85 is restricted by the groove 85C from the rotation position with the reversing device 13 shown in FIGS. 9 to 11 facing forward to the position rotated 90 degrees clockwise. Therefore, the user can rotate the reversing device 13 by 90 degrees, for example, by rotating it to the position where the rotation is restricted in the clockwise direction.

[0051] As shown in FIG. 12, the reversing device 13 is in a state where the plane of the frame member 51 faces left, and in the left - right direction, the plane of the frame member 51 faces the right side surface of the device cover 25. As shown in FIG. 6, the reversing device 13 is sandwiched between the front and rear covers 14A and 14B in the front - rear direction, and the front and rear surfaces are completely covered by the front and rear covers 14A and 14B. Also, the whole of the reversing device 13 is in a state of being accommodated above the bottom cover 14C. In this state, even if the first machine tool 11 or the second machine tool 12 is moved in the front - rear direction by a forklift or the like, the occurrence of interference between the reversing device 13 and the second cover member 15 (second machine tool 12) can be suppressed. That is, the relocation of the first and second machine tools 11 and 12 can be easily performed.

[0052] As described above, the rear cover 14B of the present embodiment is fixed at a position separated rearward from the front cover 14A by a predetermined distance 79. The distance 79 is longer than the length 81 of the reversing device 13 in the left - right direction. Thereby, as in S5 described above, the reversing device 13 can be rotated between the front and rear covers 14A and 14B in the front - rear direction, and the rotated reversing device 13 can be housed in the first cover member 14. The whole of the reversing device 13 can be easily accommodated in the first cover member 14.

[0053] (Regarding the fixing member 105) Next, the user fixes the inverted device 13 that has been moved and rotated to the position shown in FIG. 12 using a fixing member (S6). FIGS. 13 and 14 show the state in which the inverted device 13 and the traveling base 41 are fixed by the fixing member 105. As shown in FIGS. 13 and 14, the fixing member 105 is a substantially rectangular plate-shaped metal member having a predetermined width in the front-rear direction and being long in the vertical direction when fixed to the inverted device 13 and the traveling base 41. The lower end portion 105A of the fixing member 105 is fixed to the frame member 51 from the back side by a plurality of fastening members 107. Further, the upper end portion 105B of the fixing member 105 is bent approximately 90 degrees to the right (the direction away from the inverted device 13). The upper end portion 105B is fixed to the lower surface of the traveling base 41 by a plurality of fastening members 109. Incidentally, two ribs 111 that connect the lower end portion 105A and the upper end portion 105B are provided on the right side surface of the fixing member 105, enhancing the rigidity of the fixing member 105.

[0054] For example, after the user rotates the inverted device 13 by 90 degrees in S5, the user inserts the fixing member 105 through the opening above the first and second cover members (S6). The user fixes the fixing member 105 to the traveling base 41 with the fastening member 109 and fixes the fixing member 105 to the inverted device 13 with the fastening member 107. Thereby, the slide position of the jig 77 and the inverted device 13 with respect to the traveling base 41 can be fixed. For example, even if the user lifts and moves the first machine tool 11 from the front side using a forklift, it is possible to prevent the jig 77 and the inverted device 13 from being displaced or falling off the traveling base 41 by the fixing member 105.

[0055] Incidentally, the first machine tool 11 is an example of a machine tool. The second machine tool 12 is an example of another machine tool. The reversing device 13 is an example of a workpiece transfer device. The first cover member 14 is an example of a cover member. The chuck mechanism 47 and the chuck body portion 48 are an example of a robot. The portion for attaching the fastening member 58 of the second support member 53 is an example of the first carriage mounting portion. The portion for attaching the fastening member 57 of the first support member 52 is an example of the second carriage mounting portion. The first and second reversing units 61, 62 are an example of a gripping device. The bracket 85 is an example of a mounting portion. The first side portion 86A is an example of the third arm portion. The second side portion 86B is an example of the second arm portion. The second metal member 87 is an example of the first arm portion. The mounting hole 101 is an example of a jig mounting portion. The left - right direction is an example of the parallel arrangement direction. The front - rear direction is an example of the width direction.

[0056] As described above, the following effects are obtained in the present embodiment. A part of the reversing device 13, which is an aspect of the present application, protrudes outward in the right direction from the right end of the first cover member 14 in the installed state (see FIG. 5). The arm member 83 of the jig 77 rotatably holds the reversing device 13 in a region sandwiched between the front and rear covers 14A, 14B in a state where the table 84 is attached to the carriage 41 and the reversing device 13 is attached to the bracket 85 (see FIG. 10). Thus, by rotating the reversing device 13 removed from the carriage 41, the portion protruding to the right from the first cover member 14 can be housed inside the front and rear covers 14A, 14B. As a result, when moving the first machine tool 11, it is possible to reduce the interference between the reversing device 13 and the second machine tool 12 (the second cover member 15).

[0057] Also, in the storage method shown in FIGS. 6 and 10 to 14 described above, first, the table 84 is attached to the traveling base 41 (S1: an example of the first attachment step), and the bracket 85 is attached to the reversing device 13 (S2: an example of the second attachment step). Next, the reversing device 13 is removed from the traveling base 41 (S3: removal step), and with the reversing device 13 held by the jig 77, the jig 77 and the reversing device 13 are slid leftward (S4: an example of the slide movement step). Then, the reversing device 13 is rotated with respect to the jig 77, and the reversing device 13 is stored in the first cover member 14 (S5: an example of the storage step). Thereby, the reversing device 13 can be accommodated in the first cover member 14 using the jig 77, and when the first machine tool 11 is moved, interference between the reversing device 13 and the second machine tool 12 can be reduced. Also, by sliding the device main body portion 21 side first in S4 and then rotating in S5, it is possible to prevent the jig 77 from falling off the traveling base 41 during the rotation operation.

[0058] Also, the content of the present disclosure is not limited to the above-described embodiments, and various modifications and improvements can be made based on the knowledge of those skilled in the art and implemented in various forms. For example, the procedure of the storage method of S1 to S6 described above is an example. For example, in the above-described storage method, the reversing device 13 is slid in S4 and then rotated in S5, but it may be rotated first and then slid. Also, the sliding position of the reversing device 13 may be fixed by a binding band or the like without using the fixing member 105. Also, the jig 77 may be attached to the traveling base 49 of the second machine tool 12, and the reversing device 13 may be accommodated in the second cover member 15. In this case, the second machine tool 12 is an example of the machine tool of the present disclosure. The second cover member 15 is an example of the cover member. Also, after the jig 77 is attached to the reversing device 13, the reversing device 13 is removed from the traveling bases 41 and 49, but it is not limited to this. After the reversing device 13 is removed from both of the traveling bases 41 and 49 at once, the reversing device 13 may be attached to the jig 77 with the table 84 attached to the traveling rail 44.

[0059] Also, the configuration of the jig 77 in the above embodiment is an example. For example, the second side portion 86B may be provided movably with respect to the lower end portion of the first side portion 86A, or may be configured to be telescopic. Then, after attaching the table 84 to the traveling rail 44, only the second side portion 86B may be moved and telescoped to align the position of the insertion hole 85E of the bracket 85 with the mounting hole 101. Also, the number of tables 84 of the jig 77 is not limited to two, and may be one or three or more. Also, the jig 77 may be configured such that the insertion hole 85E is disposed in front of the mounting hole 101. Also, in the above embodiment, the mounting hole 101 is provided between the first and second support members 52 and 53 in the left-right direction, but it is not limited to this. For example, one of the first and second support members 52 and 53 may be provided at a position shifted inward in the left-right direction from the position shown in FIG. 4, and the mounting hole 101 may be provided on the right side of the first support member 52 or the left side of the second support member 53. In this case, the jig 77 may be attached to the right side of the first support member 52 or the left side of the second support member 53 to support the reversing device 13. Also, as shown in FIG. 10, when the jig 77 attached to the traveling base 41 is viewed from the right direction, the first side portion 86A and the bracket 85 are arranged with the traveling base 41 sandwiched therebetween in the front-rear direction, but it is not limited to this. For example, the second side portion 86B may be eliminated, the first side portion 86A may be disposed on the rear side of the traveling base 41 in FIG. 10, and the rear short side portion 87B and the bracket 85 may be connected by the first side portion 86A extending in the vertical direction.

[0060] Also, the configurations of the first cover member 14 and the second cover member 15 in the above embodiment are examples. For example, the first cover member 14 may be configured such that the width in the front-rear direction is 81 (see FIG. 6) or more only at the position where the reversing device 13 is rotated. Also, the first cover member 14 may include a cover that covers the lower side of the reversing device 13. Also, the first cover member 14 may be configured to include only the front cover 14A. Also, the reversing device 13 may be disposed above the traveling bases 41 and 49. In addition, in the above-described embodiment, as the workpiece transfer device of the present disclosure, an inversion device that inverts and transfers the workpiece is employed, but the present disclosure is not limited thereto. For example, the workpiece transfer device of the present disclosure may be a shift device that transfers the workpiece while maintaining its orientation. More specifically, for example, the inversion device 13 may be configured such that it does not include the second inversion unit 62, and the first inversion unit 61 slides in the left-right direction without rotating. Then, after receiving the workpiece from the second loader 32 of the second machine tool 12 by the inversion device 13, the first inversion unit 61 may be slid, and the workpiece may be transferred to the first loader 22 of the first machine tool 11 while maintaining its orientation. Even with such a shift device, by using the jig 77 described above, it is possible to accommodate the portion protruding from the first cover member 14 within the first cover member 14. In addition, the first and second machine tools 11 and 12 are not limited to lathes using a turret device, and may be other machine tools such as machining centers and milling machines.

Explanation of Reference Numerals

[0061] 11 First machine tool (machine tool), 12 Second machine tool (other machine tool), 13 Inversion device (workpiece transfer device), 14 First cover member (cover member), 14A Front cover, 14B Rear cover, 41 Traveling base, 43 Traveling rack, 47 Chuck mechanism (robot), 48 Chuck main body part (robot), 51 Frame member, 52 First support member (second traveling base mounting part), 53 Second support member (first traveling base mounting part), 61 First inversion unit (holding device), 62 Second inversion unit (holding device), 77 Jig for workpiece transfer device, 83 Arm member, 84 Table, 85 Bracket (mounting part), 86A First side part (third arm part), 86B Second side part (second arm part), 87 Second metal member (first arm part), 101 Mounting hole (jig mounting part).

Claims

1. A jig for a workpiece transfer device used in a workpiece transfer device that executes workpiece transfer between other machine tools while being attached to a machine tool, wherein the other machine tool is arranged side by side with the machine tool in the side-by-side direction in a state where installation is completed, the machine tool is capable of attaching the workpiece transfer device, and has a traveling base extending in the side-by-side direction, a device main body portion that executes processing on the workpiece, a cover member that covers a portion protruding from the device main body portion on the traveling base, a robot that moves along the traveling base and executes workpiece transfer with the workpiece transfer device, and is provided with the workpiece transfer device in a state where installation is completed, has a portion covered by the cover member and a portion protruding outward from the end of the cover member in the side-by-side direction, the jig for the workpiece transfer device a table slidably attached to the traveling base, a mounting portion to which the workpiece transfer device can be attached, an arm member that connects the table and the mounting portion and rotatably holds the mounting portion, and has the arm member in a state where the table is attached to the traveling base and the workpiece transfer device is attached to the mounting portion, holds the workpiece transfer device removed from the traveling base, and rotatably holds the workpiece transfer device with respect to the traveling base within the cover member. A jig for a workpiece transfer device.

2. The workpiece transfer device has a gripping device that grips the workpiece, and a frame member that holds the gripping device, and has the frame member has a jig mounting portion to which the mounting portion can be attached, the arm member when the table is arranged at a predetermined position on the traveling base with the workpiece transfer device attached to the traveling base, arranges the mounting portion at the jig mounting portion of the frame member. The jig for a workpiece transfer device according to claim 1.

3. The frame member holds the gripping device slidably, has a first traveling base mounting portion attached to the traveling base of the machine tool, and a second traveling base mounting portion attached to the traveling base of the other machine tool, and has the jig mounting portion is provided between the first traveling base mounting portion and the second traveling base mounting portion in the sliding direction of the gripping device. The jig for a workpiece transfer device according to claim 2.

4. The workpiece transfer device is attached below the traveling base, The arm member includes a first arm portion that holds the table above the traveling base, a second arm portion that holds the mounting portion below the traveling base, and a third arm portion that extends in the vertical direction and connects the first arm portion and the second arm portion. The jig for the workpiece transfer device according to any one of claims 1 to 3.

5. When the jig for the workpiece transfer device attached to the traveling base is viewed from the side-by-side direction, in a direction perpendicular to both the side-by-side direction and the vertical direction, the third arm portion and the mounting portion are arranged with the traveling base therebetween. The jig for the workpiece transfer device according to claim 4.

6. The traveling base has a traveling rack, and a pair of traveling rails arranged with the traveling rack therebetween in a direction perpendicular to both the side-by-side direction and the vertical direction. It has The table is provided in a pair, The first arm portion holds each of the pair of tables attached to each of the pair of traveling rails in a state of straddling the traveling rack. The arm member In a state where a pair of the tables are attached to each of the pair of traveling rails, the traveling base is inserted into a portion surrounded by the first arm portion, the second arm portion, and the third arm portion. The jig for the workpiece transfer device according to claim 4 or claim 5.

7. The cover member has a plate-shaped front cover that covers the front surface of the traveling base, and a plate-shaped rear cover that covers the rear surface of the traveling base. It has The front cover and the rear cover are provided at positions separated by a predetermined distance in a direction perpendicular to both the side-by-side direction and the vertical direction. The predetermined distance is a distance longer than the length of the workpiece transfer device in the side-by-side direction. The jig for the workpiece transfer device according to any one of claims 1 to 6.

8. A storage method of storing a workpiece transfer device that executes workpiece transfer with another machine tool in a state of being attached to a machine tool by a jig for the workpiece transfer device, The other machine tool is arranged side by side with the machine tool in the side-by-side direction in a state where installation is completed. The machine tool is capable of attaching the workpiece transfer device and has a traveling base extending in the side-by-side direction, and a device main body portion that performs processing on the workpiece. A cover member that covers a portion protruding from the apparatus main body portion on the traveling base; A robot that moves along the traveling base and executes the transfer of the workpiece with the workpiece transfer device; Comprising; The workpiece transfer device; In a state where the installation is completed, it has a portion covered by the cover member and a portion protruding outward from the end of the cover member in the parallel arrangement direction; The jig for the workpiece transfer device; A table that is slidably attached to the traveling base; An attachment portion to which the workpiece transfer device is attached; An arm member that connects the table and the attachment portion and rotatably holds the attachment portion; Having; The storage method; A first attachment step of attaching the table to the traveling base; A second attachment step of attaching the attachment portion to the workpiece transfer device; A removal step of removing the workpiece transfer device from the traveling base; A slide movement step of sliding the jig for the workpiece transfer device and the workpiece transfer device with respect to the traveling base and sliding the jig for the workpiece transfer device and the workpiece transfer device in a direction approaching the apparatus main body portion of the machine tool; After executing the slide movement step, a storage step of rotating the workpiece transfer device with respect to the jig for the workpiece transfer device and storing the workpiece transfer device in the cover member; A storage method including.

Images