JP2011255452A - Jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jig in which clampers and support devices can be attached to any positions so as to be adaptable to a variety of workpiece shapes.SOLUTION: This jig includes a jig plate, base plates, and the clampers. The base plates are placed on the jig plate, and the clampers are mounted on the jig plate around the base plates, respectively, to clamp a workpiece put on the base plates. The jig plate has a flow passage having horizontal holes around the base plates and a plurality of vertical holes communicating with the horizontal holes from the upper surface. The clampers are attached onto any vertical holes, and the clampers are connected to the vertical holes to supply working fluid therethrough. The jig plate has center holes on the undersides of the base plates, respectively, the support devices are attached to the base plate, and pipes are connected thereto through the center holes, respectively. The support devices support the workpiece, and are connected to the pipes through the connection passages of the base plates to supply the working fluid therethrough.

Description

  The present invention relates to a jig for fixing a workpiece when the workpiece is processed or conveyed.

  Conventionally, there are jigs in which a clamper for clamping a workpiece and a support for supporting the workpiece are mounted on a jig plate. Here, there are various support tools such as a reference piece, a locate pin, a natural clamp, and a lifter. And about a movable thing among a clamper and a support tool, a working fluid is supplied by the manifold formed in the inside of external piping or a jig plate. Such a jig is used in various situations, such as when a workpiece is processed by a machine tool, or when a workpiece is transferred by a transfer machine.

  By the way, such jigs differ in the number and arrangement of clampers and supports depending on the shape and size of the workpiece, and the configurations of external piping and manifolds also differ. Therefore, in the past, almost all of the jigs had to be newly designed and manufactured in accordance with the workpiece, and the problem was that the types of jigs increased, the design and manufacturing costs increased, and the delivery time became longer. . Therefore, Patent Documents 1 and 2 propose jigs that can deal with various workpiece shapes. In the invention of Patent Document 1, a groove extending vertically and horizontally is formed on a plate, a clamper can be attached at an arbitrary position along the groove, and a clamper and a fluid supply port formed at various locations on the plate are provided. The working fluid is supplied by being connected by external piping. In the invention of Patent Document 2, a plurality of vertical holes are formed on a plate, and a clamper can be attached on any vertical hole, and a working fluid is supplied through the vertical holes. In any of the inventions, the place where the clamper can be attached is limited to the groove or the vertical hole, but in the case of the clamper, the position of the clamper itself is flexible to some extent if the length of the arm is adjusted. it is conceivable that.

JP-A-9-70728 JP-A 61-109639

  However, although the jigs of Patent Documents 1 and 2 are compatible with various workpiece shapes, when additional machining is performed on the plate according to the shape of the workpiece, it becomes a dedicated product for the workpiece, which is used for other workpieces. It can no longer be reused. In addition to the clamper, when using a support such as a reference piece or a locating pin, these support points are determined for the workpiece and can be attached to any part of the plate, that is, where there is no groove or vertical hole. Therefore, the jigs of Patent Documents 1 and 2 cannot be used. Furthermore, if the pipe for supplying the working fluid is exposed on the plate as in the jig of Patent Document 1, chips are accumulated on the pipe, and the arrangement of other support tools is hindered by the pipe. There is a risk of being

  The present invention has been made in view of the above circumstances, and can be attached to an arbitrary location with a clamper or a support tool, can be used for various workpiece shapes, and a jig that requires minimal new design and manufacturing. The purpose is to provide.

  The invention of claim 1 of the present invention comprises a substantially flat jig plate, a substantially flat plate base plate smaller than the jig plate, and a clamper, and the base plate is placed on the jig plate. The clamper is mounted on a jig plate around the base plate, has an arm extending toward the base plate, and clamps a workpiece placed on the base plate by the arm.

  According to the second aspect of the present invention, the jig plate has a flow path through which the working fluid of the clamper flows, the flow path is formed in a portion around the base plate and extends in the horizontal direction, and the jig. It consists of a plurality of vertical holes communicating with the horizontal hole from the upper surface of the plate, and a clamper is mounted on an arbitrary vertical hole, and the working fluid is supplied by connecting the clamper to the vertical hole.

  In the invention of claim 3 among the present invention, the jig plate has a plurality of peripheral holes penetrating up and down formed in the peripheral part of the base plate, and a clamper is attached on the arbitrary peripheral hole, A pipe is connected to the clamper from below through a peripheral hole and is supplied with a working fluid.

  According to a fourth aspect of the present invention, there is provided a substantially flat jig plate, a substantially flat plate base plate smaller than the jig plate, a substantially flat plate sub plate having the same height as the base plate, and a clamper. The base plate is placed on the jig plate, the sub plate is placed on the jig plate around the base plate, and the clamper is mounted on the sub plate or straddling the sub plate and the base plate, An arm extending toward the base plate is provided, and a workpiece placed on the base plate is clamped by the arm.

  According to a fifth aspect of the present invention, the jig plate has a flow path through which the working fluid of the clamper flows, the flow path is formed in a portion around the base plate and extends in the horizontal direction, and the jig. It consists of a plurality of vertical holes that communicate with the horizontal hole from the top surface of the plate. A sub plate is placed on any vertical hole, and the clamper is connected to the vertical hole by a connection path formed in the sub plate, and the working fluid is It is characterized by being supplied.

  According to a sixth aspect of the present invention, the jig plate has a plurality of peripheral holes formed in the periphery of the base plate and extending vertically, and the sub-plate is placed on any peripheral hole. In addition, a pipe is connected to the sub plate from below through a peripheral hole, and the working fluid is supplied by connecting the clamper to the pipe through a connection path formed in the sub plate.

  According to a seventh aspect of the present invention, the jig plate has a central hole formed in the lower part of the base plate and extending vertically, and a support is attached to the base plate. Piping is connected from below, and the support is for supporting the workpiece, and is connected to the piping by a connection path formed in the base plate, and is supplied with working fluid.

  According to the first and fourth aspects of the present invention, since the base plate is placed on the jig plate and the workpiece is placed on the base plate, the base plate is additionally processed according to the shape of the workpiece. Even in this case, the jig plate can be used repeatedly as long as only the base plate is replaced. In particular, according to the invention of claim 4, by using the sub-plate having the same height as the base plate, the clamper can be mounted across the base plate and the sub-plate, so that the clamper can be attached in a wider range. Become.

  According to the second and fifth aspects of the present invention, since the working fluid is supplied to the clamper from the flow path formed in the jig plate, the pipe and the like are not exposed on the jig plate. There is no accumulation of chips and the arrangement of other structures is not hindered by the piping.

  According to the third and sixth aspects of the present invention, since the pipe is connected to the clamper or the sub plate from the lower side of the jig plate, the pipe is not exposed on the jig plate. There is no accumulation of powder and the arrangement of other structures is not hindered by the piping.

  According to the seventh aspect of the present invention, the support such as the reference piece and the locating pin can be disposed at any position on the base plate, and the working fluid can be supplied by connecting a pipe from below. it can. If you prepare jig plates and base plates of multiple sizes according to the workpiece size, you can use standard products for clampers and other supports, so you can design and manufacture new ones. Since only a base plate is required, an increase in the number of types of jig parts can be prevented, and design and manufacturing costs can be reduced and delivery times can be shortened.

1st embodiment is shown, (a) is a top view, (b) is a side view. A 2nd embodiment is shown, (a) is a top view and (b) is a partial side view. A 3rd embodiment is shown, (a) is a top view and (b) is a partial side view.

  A specific configuration of the jig of the present invention will be described with reference to the drawings. As shown in FIG. 1, the first embodiment of the jig includes a jig plate 1, a base plate 2, a clamper 3, and other support tools 5. In this embodiment, a reference piece 51, a locate pin 52 and a natural clamp 53 are provided as the support 5. In the following description, the horizontal direction in FIG. 1 is defined as the width direction of the jig plate 1, and the vertical direction is defined as the depth direction of the jig plate 1.

  The jig plate 1 is a rectangular flat plate placed on the jig base 6, and two rectangular central holes 15 are formed in the center side by side in the width direction. A flow path through which the working fluid of the clamper 3 flows is formed around the central hole 15, and the flow path includes a set of two horizontal holes 11 a and 11 b and a jig from each of the horizontal holes 11 a and 11 b. It consists of vertical holes 12 a and 12 b communicating with the upper surface of the plate 1. The horizontal holes 11a and 11b penetrate the jig plate 1 in the horizontal direction at the front side, the back side, the left side and the right side of the central hole 15 and at five locations between the two central holes 15, respectively. The horizontal holes 11a and 11b have different height positions, and the lower horizontal holes 11a and the upper horizontal holes 11b communicate with each other at an intersection. Further, female screws are formed at both ends of each horizontal hole 11a, 11b, and the plug 111 is screwed and closed. Further, an inlet hole 112 communicating with the lower surface of the jig plate 1 is formed at a predetermined position of the horizontal holes 11a and 11b. The inlet hole 112 communicates with the fluid supply port 61 formed in the jig base 6, and each horizontal hole 11a. , 11b is supplied with fluid. On the other hand, the vertical holes 12a and 12b are provided at two positions for the horizontal holes 11a and 11b extending in the width direction, and at four positions for the horizontal holes 11a and 11b extending in the depth direction. Two vertical holes 12a that communicate with each other and two vertical holes 12b that communicate with the upper horizontal hole 11b constitute a set. Further, female screws are formed in the vertical holes 12a and 12b, and O-ring grooves 121 for fitting O-rings are formed in the peripheral portions of the vertical holes 12a and 12b on the upper surface of the jig plate 1. .

  The base plate 2 is placed on the two central holes 15 so as to close the central holes 15 and is bolted thereto. The base plate 2 has a rectangular flat plate shape smaller than the jig plate 1 and has a size such that the vertical holes 12a and 12b are not blocked.

  Further, a clamper 3 is attached around the base plate 2. The clamper 3 has an arm 31 that extends toward the base plate 2 and can move up and down. Two supply ports 32a and 32b for supplying the working fluid of the arm 31 are opened on the lower surface, and each of them is used for clamping. And for unclamping. The clamper 3 is placed on the pair of vertical holes 12a and 12b, the two supply ports 32a and 32b communicate with the vertical holes 12a and 12b, respectively, and the working fluid is supplied from the horizontal holes 11a and 11b. Is done. Here, the lower horizontal hole 11a functions as a clamp circuit, and the upper horizontal hole 11b functions as an unclamp circuit. For the vertical holes 12a and 12b for attaching the clamper 3, an O-ring (not shown) is attached to the O-ring groove 121, and for the other vertical holes 12a and 12b, plugs 122 are screwed together to close the holes. It is.

  Further, on the base plate 2, support tools 5 such as a reference piece 51, a locate pin 52, and a natural clamp 53 are placed at predetermined positions, and the work W is supported by these support tools 5. The reference piece 51 serves as a reference for the height position of the workpiece W. The workpiece W is supported at three points by the three reference pieces 51, and the workpiece W is constituted by the reference piece 51 and the arm 31 of the clamper 3. Is inserted. Each reference piece 51 has an air supply path 511 for detecting the ground contact of the work W and a cleaning liquid supply path 512 for cleaning the ground contact surface of the work W. The air supply path 511 and the cleaning liquid supply path 512 are: Both are open on the lower surface of the reference piece 51. The base plate 2 is formed with connection paths 21a and 21b communicating from the upper surface to the lower surface, and the air supply path 511 and the cleaning liquid supply path 512 communicate with the upper ends of the connection paths 21a and 21b. Further, a pipe 14 is connected to the lower ends of the connection paths 21a and 21b (the pipe connected to the connection path 21b is not shown), and an air supply port 62 and a fluid supply port (not shown) provided in the jig base 6, respectively. ) And the air and the cleaning liquid are supplied to the reference piece 51. At this time, if the connection paths 21a and 21b of the base plate 2 are formed in accordance with the position of the reference piece 51, the pipe 14 connecting the base plate 2 and the jig base 6 is always connected to a fixed position. Product. The locate pin determines the horizontal position of the workpiece W. Furthermore, the natural clamp 53 abuts against the work W with a force within a range that does not deform the work W, and can resist the force acting on the work W during processing. It is energized by force.

  According to the jig of the first embodiment configured as described above, the clamper can be mounted on any vertical hole, and the support such as the reference piece, the locate pin, and the natural clamp can be installed on any base plate. Can be attached in position. At this time, since a central hole is formed on the lower side of the base plate, a support having a portion protruding from the lower surface of the base plate, such as a locating pin (not shown) of a type movable in the vertical direction, can be attached. If jig plates and base plates are prepared in multiple sizes according to the size of the workpiece, standard products are used for the clamper, the support and the piping for supplying fluid to the support. Therefore, since only the base plate needs to be newly designed and manufactured, it is possible to prevent an increase in the number of types of jig parts, and to reduce design and manufacturing costs and shorten delivery times. Moreover, since it is not necessary to add an additional process to components other than a baseplate, it can be repeatedly used for a different workpiece | work. Furthermore, fluid is supplied to the clamper from the flow path formed on the jig plate, and fluid is supplied to the other jigs by piping connected to the lower surface of the base plate. Is not exposed, and chips are not deposited on the pipe, and the arrangement of other structures is not hindered by the pipe.

  Next, 2nd embodiment of the jig | tool of this invention is described based on FIG. Similarly to the first embodiment, the second embodiment also includes a jig plate 1, a base plate 2, a clamper 3, and other support tools 5. The support tool 5 includes a reference piece 51, a locate pin 52, A natural clamp 53 is provided. The jig plate 1 has two central holes 15, and the base plate 2 is placed and bolted so as to close the central holes 15. Further, the configuration of the support 5 and the workpiece W on the base plate 2 and the method of supplying the fluid to the support 5 are the same as in the first embodiment, and a description thereof will be omitted.

  Further, the flow path through which the working fluid of the clamper 3 formed around the central hole 15 flows is the same as in the first embodiment, and a pair of horizontal holes 11a and 11b and the horizontal holes 11a and 11b. To the upper surface of the jig plate 1 from the vertical holes 12a and 12b. However, the vertical holes 12a and 12b are provided at four positions for the horizontal holes 11a and 11b extending in the width direction and at three positions for the horizontal holes 11a and 11b extending in the depth direction. Further, through holes 16a and 16b penetrating the jig plate 1 vertically are formed in the vicinity of the vertical holes 12a and 12b, and the vertical holes 12a and 12b and the through holes 16a and 16b are combined in four. It is a pair. The through holes 16a and 16b are also formed with female screws in the same manner as the vertical holes 12a and 12b, and are used for fitting O-rings into the peripheral portions of the through holes 16a and 16b on the upper surface of the jig plate 1. An O-ring groove 161 is formed.

  Further, a clamper 3 is attached around the base plate 2, but instead of being directly placed on the jig plate 1 as in the first embodiment, the sub-plate 4 is placed on the jig plate 1. The clamper 3 is placed thereon. The sub-plate 4 is finished to the same height by being polished simultaneously with the base plate 2, and the clamper 3 can be mounted across the sub-plate 4 and the base plate 2. The sub plate 4 has a plurality of types of sizes such as one on which one clamper 3 can be placed and one on which two or more clampers 3 can be placed. The structure of the clamper 3 itself is the same as that of the first embodiment, and has an arm 31 that extends to the base plate 2 side and can be moved up and down, and two supply ports 32a for supplying the working fluid of the arm 31 to the lower surface. 32b is open for clamping and unclamping, respectively. The sub-plate 4 has connection paths 41a and 41b communicating from the upper surface to the lower surface, and the supply ports 32a and 32b communicate with the upper ends of the connection paths 41a and 41b. Further, the lower ends of the connection paths 41a and 41b communicate with the vertical holes 12a and 12b of the jig plate 1, and the working fluid is supplied from the horizontal holes 11a and 11b. Here, the lower horizontal hole 11a functions as a clamp circuit, and the upper horizontal hole 11b functions as an unclamp circuit. For the vertical holes 12a and 12b communicating with the connection paths 41a and 41b of the sub-plate 4, an O-ring (not shown) is attached to the O-ring groove 121, and for the other vertical holes 12a and 12b, plugs are connected. 122 is screwed and closed. Further, the supply ports 32 a and 32 b of the clamper 3 may be connected to the through holes 16 a and 16 b via the connection paths 41 a and 41 b of the sub-plate 4. In this case, an O-ring is attached to the O-ring groove 161 of the through holes 16a and 16b, and a pipe is connected to the lower ends of the through holes 16a and 16b, so that the working fluid is supplied to the clamper 3. The clampers 3 connected to the vertical holes 12a and 12b all operate uniformly, but the clampers 3 connected to the through holes 16a and 16b can be operated independently.

  According to the jig of the second embodiment configured in this way, in addition to the same effects as the jig of the first embodiment (however, it is the base plate and the sub plate that are newly designed and manufactured). The clamper can be mounted across the sub-plate and the base plate, and the clamper can be attached in a wider range. If the clamper is as short as possible, the workpiece can be pressed with a stronger force, and the influence of the deflection of the arm can be reduced, so the performance as a jig is improved. Further, by connecting an arbitrary clamper to the through hole, the clamper can be operated independently.

  Next, a third embodiment of the jig of the present invention will be described based on FIG. Similarly to the first embodiment, the third embodiment also includes a jig plate 1, a base plate 2, a clamper 3, and other support tools 5. The support tool 5 includes a reference piece 51, a locate pin 52, A natural clamp 53 is provided. The jig plate 1 has two central holes 15, and the base plate 2 is placed and bolted so as to close the central holes 15. Further, the configuration of the support 5 and the workpiece W on the base plate 2 and the method of supplying the fluid to the support 5 are the same as in the first embodiment, and a description thereof will be omitted.

  A peripheral hole 13 penetrating vertically is formed around the central hole 15. The peripheral holes 13 are circular, and four are formed on the front side and the back side of the central hole 15, and three are formed between the left side, the right side, and the two central holes 15.

  Further, a clamper 3 is attached around the base plate 2. As in the second embodiment, the sub-plate 4 is placed on the jig plate 1, and the clamper 3 is placed thereon. . The sub-plate 4 is finished to the same height by being polished simultaneously with the base plate 2, and the clamper 3 can be mounted across the sub-plate 4 and the base plate 2. The sub plate 4 has a plurality of types of sizes such as one on which one clamper 3 can be placed and one on which two or more clampers 3 can be placed. The structure of the clamper 3 itself is the same as that of the first embodiment, and has an arm 31 that extends to the base plate 2 side and can be moved up and down, and two supply ports 32a for supplying the working fluid of the arm 31 to the lower surface. 32b is open for clamping and unclamping, respectively. The sub-plate 4 has connection paths 41a and 41b communicating from the upper surface to the lower surface, and the supply ports 32a and 32b communicate with the upper ends of the connection paths 41a and 41b. Further, the piping 14 is connected to the lower ends of the connection paths 41 a and 41 b, respectively connected to the fluid supply ports 61 provided in the jig base 6, and the working fluid is supplied to the clamper 3. At this time, if the connection paths 41a and 41b of the sub plate 4 are formed in accordance with the position of the clamper 3 on the sub plate 4, the pipe 14 for connecting the sub plate 4 and the jig base 6 is always determined. It can be a standard product that connects to a different position.

  According to the jig of the third embodiment configured as described above, in addition to the same effects as the jig of the first embodiment (however, the base plate and the sub plate are newly designed and manufactured. In addition, the fluid is supplied to the clamper by the pipe connected to the lower surface of the sub plate, so that the pipe is not exposed on the jig plate), and the clamper can be mounted across the sub plate and the base plate. The clamper can be attached in a wider range. If the clamper is as short as possible, the workpiece can be pressed with a stronger force, and the influence of the deflection of the arm can be reduced, so the performance as a jig is improved. Further, by connecting a pipe of another system to an arbitrary clamper, the clamper can be operated independently.

  The present invention is not limited to the above embodiment. For example, the number of workpieces to be fixed may be singular or plural. Alternatively, a peripheral hole may be formed in the jig plate, a clamper may be attached on the peripheral hole, and a pipe may be connected to the clamper from below through the peripheral hole to supply the working fluid. Further, the jig plate and the base plate are not limited to a rectangular shape, and can be appropriately deformed according to the shape of the workpiece and the configuration of a machine tool or a conveyance machine using the jig. In addition to the reference piece, the locate pin and the natural clamp, various supports such as a lifter and a side clamp can be used as the support placed on the base plate. Also, a workpiece type detection device (not shown) for determining the workpiece type can be provided on the base plate.

DESCRIPTION OF SYMBOLS 1 Jig plate 2 Base plate 3 Clamper 4 Subplate 5 Support 11a, 11b Horizontal hole 12a, 12b Vertical hole 13 Peripheral hole 14 Piping 15 Center hole 21a, 21b Connection path (base plate)
31 Arm 41a, 41b Connection path (sub-plate)
W Work

Claims (7)

  A substantially flat jig plate, a base plate that is substantially flat and smaller than the jig plate, and a clamper are provided. The base plate is placed on the jig plate, and the clamper is placed on the jig plate around the base plate. A jig having an arm attached to the base plate and extending toward the base plate, and clamping a work placed on the base plate by the arm.   The jig plate has a flow path through which the working fluid of the clamper flows. 2. The jig according to claim 1, comprising a vertical hole, wherein a clamper is mounted on an arbitrary vertical hole, and the working fluid is supplied by connecting the clamper to the vertical hole.   The jig plate has a plurality of upper and lower peripheral holes formed in the peripheral part of the base plate, and a clamper is mounted on any peripheral hole, and the clamper is piped from below through the peripheral hole. The jig according to claim 1, wherein the working fluid is supplied by being connected.   A substantially flat jig plate, a substantially flat plate base plate smaller than the jig plate, a substantially flat plate-shaped sub plate having the same height as the base plate, and a clamper are mounted on the jig plate. The sub plate is mounted on a jig plate around the base plate, and the clamper is mounted on the sub plate or straddling the sub plate and the base plate, and has an arm extending to the base plate side, A jig that clamps a workpiece placed on a base plate with an arm.   The jig plate has a flow path through which the working fluid of the clamper flows. 5. A vertical plate comprising: a sub plate placed on an arbitrary vertical hole, wherein the working fluid is supplied by connecting the clamper to the vertical hole through a connection path formed in the sub plate. The jig described.   The jig plate has a plurality of upper and lower peripheral holes formed in the peripheral portion of the base plate, and the sub plate is placed on any peripheral hole, and the sub plate passes through the peripheral holes. 5. The jig according to claim 4, wherein a pipe is connected from below, and the working fluid is supplied by connecting the clamper to the pipe through a connection path formed in the sub-plate.   The jig plate has a central hole formed in the lower part of the base plate that penetrates up and down. A support is attached to the base plate, and a pipe is connected from below through the central hole. 7. The treatment according to claim 1, wherein the work fluid is supported by a work channel and is connected to a pipe through a connection path formed in the base plate. Ingredients.

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