JP2017213637A - Clamp jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plate-shaped clamp jig for clamping overlapping portions of plate-shaped workpieces.SOLUTION: A clamp jig for clamping plate-shaped workpieces in an overlapped state comprises opposing clamp jaws 5A and 5B for clamping overlapping portions of the workpieces at a jig main body 3 constituted of a plate material, and further comprises guide faces 9 for guiding the overlapping portions of the workpieces to a clearance between the opposing clamp jaws 5A and 5B at leading ends of the clamp jaws 5A and 5B. The jig main body 3 and the opposing clamp jaws 5A and 5B are arranged on the same plane.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a clamp jig that holds plate materials in a stacked state when the plate materials are overlapped and, for example, laser welding is performed. More specifically, the present invention relates to a clamp jig that is simple in structure and easy to manufacture, and that can easily cope with a case where the arrangement area of the clamp jig is narrow.

  When laser welding is performed by stacking plate-shaped workpieces, various clamp jigs are used to prevent mutual displacement of the stacked workpieces (see, for example, Patent Documents 1 to 4).

JP 2012-11406 A JP 2001-191968 A JP 2003-90094 A Japanese Laid-Open Patent Publication No. 1-172079

  The clamp described in Patent Document 1 clamps the overlapping portion of the plate material when the plate material is overlapped and laser welding is performed. This clamp is provided with a base, is provided with an arm that presses an overlapping portion of plate members against the base, and an actuator that rotates the arm. Therefore, there is a problem that the structure of the clamp is complicated.

  The configuration described in Patent Document 2 is a configuration in which workpieces to be joined are temporarily fixed to each other with a double-sided adhesive tape, and then laser welding is performed. Therefore, when the workpiece is heavy, there is a problem that the workpiece may be displaced after temporary fixing.

  The configuration described in Patent Documents 3 and 4 is a configuration in which a clip is used for temporary fixing. In this case, there is a problem that processing for forming the clip three-dimensionally is necessary and the manufacture is troublesome.

  The present invention has been made in view of the above-described problems, and provides a clamping jig that is simple in configuration and easy to manufacture.

  The present invention is a clamping jig for clamping a plate-like workpiece in an overlapped state, and a clamp jaw for clamping a workpiece overlapping portion is opposed to a jig body made of a plate material. A guide surface for guiding a workpiece overlap portion between the opposing clamp jaws at the tip of the clamp jaw, and the jig body and the opposing clamp jaws are provided on the same plane. .

  In the clamp jig, an opening is provided between the opposing clamp jaws, and a slit or a notch for facilitating the elastic deformation of the clamp jaw is provided on a deep surface portion of the opening. .

  Further, in the clamp jig, the deep surface portion of the opening constitutes a workpiece positioning portion.

  In the clamp jig, an opening is provided between the opposing clamp jaws, and a root opening through which a workpiece can enter is provided at the deep surface of the opening.

  In the clamp jig, at least one of the opposing clamp jaws is provided with a slit or a notch for facilitating elastic deformation of the clamp jaw.

  Moreover, it is a clamp jig | tool for clamping to the state which accumulated the other workpiece | work on the outer side of the said flange part in the plate-shaped workpiece | work provided with the flange part, Comprising: The hook which can be latched to the edge of said one workpiece | work An arm portion provided at the distal end portion, and a pressing portion for pressing the other workpiece against the flange portion at a base end portion of the arm portion in a direction intersecting the longitudinal direction of the arm portion. Protrusively provided.

  In the clamp jig, the arm portion and the pressing portion are made of a plate material and are provided on the same plane.

  Further, in the clamp jig, the hook portion includes a protruding portion that protrudes in a direction intersecting with the longitudinal direction of the arm portion, and a protrusion protruding in the base end portion direction at a distal end portion of the protruding portion. A protrusion is provided, and an interval between the arm and the flange protrusion is a dimension corresponding to a plate thickness of the one workpiece, and an inner surface of the flange protrusion is formed as a convex curved surface.

  Further, in the clamp jig, the arm part is provided with a slit or a notch part for facilitating elastic deformation of the arm part.

  According to the present invention, the jig body made of a plate material is provided with the clamping jaws for clamping the overlapped part of the workpiece so as to be opposed to the tip end portion of the clamping jaws and between the opposed clamping jaws. Since the guide surface for guiding the overlapped part of the workpiece is provided and the jig body and the opposing clamp jaws are provided on the same plane, the clamp jig can be removed from the plate material by laser cutting the plate material. Can be cut and separated. That is, it is easy to manufacture a clamp jig.

It is explanatory drawing which shows the structure of the clamp jig | tool which concerns on the 1st Embodiment of this invention. It is explanatory drawing which shows the state which clamped the overlapping part of the workpiece | work with the said clamp jig | tool. It is explanatory drawing which shows the structure of the clamp jig | tool which concerns on 2nd Embodiment. It is explanatory drawing which shows the state which clamped the overlapping part of the workpiece | work with the said clamp jig | tool. It is explanatory drawing which shows the structure of the clamp jig | tool which concerns on 3rd Embodiment. It is explanatory drawing which shows the state which clamped the overlapping part of the workpiece | work with the said clamp jig | tool.

  Hereinafter, a clamp jig according to an embodiment of the present invention will be described with reference to the drawings. A clamp jig 1 according to a first embodiment includes a jig body 3 as shown in FIG. As shown in FIG. 2, the jig body 3 is provided with clamp jaws 5 </ b> A and 5 </ b> B facing each other so as to clamp (hold) the overlapped portions of the workpieces W <b> 1 and W <b> 2. An opening 7 is provided between the pair of clamp jaws 5A and 5B.

  That is, the clamp jig 1 is provided with a pair of clamp jaws 5A and 5B opposed to the jig body 3, so that the overall configuration is formed in a U shape. A guide surface 9 that guides the overlapped portion of the workpieces W1 and W2 to the opening 7 when the overlapped portion of the workpieces W1 and W2 is sandwiched in the opening 7 at the tip of the clamp jaws 5A and 5B. Are formed. In order to facilitate elastic deformation of the clamp jaws 5A and 5B, the front end side of each of the clamp jaws 5A and 5B is likely to change in the direction away from each other on the deep surface portion 11 of the opening 7. The slit 13 is formed. It should be noted that the slit 13 can also be a suitably shaped cutout. The deep surface portion 11 constitutes a contact positioning portion when the edges of the overlapping portions of the workpieces W1 and W2 are contacted.

  The clamp jig 1 is manufactured, for example, by performing laser cutting on a plate material such as an end material. Therefore, the jig body 3 and the clamp jaws 5A and 5B are configured to be located in the same plane. As described above, the clamp jig 1 is obtained by performing a laser cutting process on a plate material, and thus has a simple configuration and is easy to manufacture.

  As already understood, since the clamping jig 1 is obtained by performing laser cutting processing of a plate material, as shown in FIG. 2, when the region of the overlapping portion of the workpieces W1 and W2 is narrow However, it can be easily handled. And when clamping the overlapping part of the workpieces W1 and W2 by the pair of clamp jaws 5A and 5B, the overlapping part of the workpieces W1 and W2 is pushed into the opening 7 between the clamping jaws 5A and 5B. . At this time, the clamp jaws 5A and 5B are elastically deformed in directions away from each other. Therefore, the clamping of the overlapping portions of the workpieces W1, W2 by the clamping jaws 5A, 5B is performed strongly. In order to release the clamp of the overlapped portions of the workpieces W1 and W2, the workpieces W1 and W2 may be pulled out from the openings 7 of the clamp jaws 5A and 5B and removed from the overlapped portion. Therefore, it is possible to easily clamp and release the overlapping portion of the workpieces W1 and W2 by the clamp jig 1.

  In the above description, the case where two slits 13 are provided has been described. However, the slit 13 may be one as shown in FIG. Further, in place of the slit 13, as shown in FIG. 1C, it is possible to form a notch 13C having an appropriate shape.

  FIG. 3 shows a clamp jig 1A according to the second embodiment. The clamp jig 1A is used when the overlapped portion of the workpiece is greatly separated from the edge of the workpiece. In the clamp jig 1A, the length of the pair of clamp jaws 5A-1 and 5B-1 corresponding to the clamp jaws 5A and 5B is several times larger than the distance between the openings 7. Is formed. And it is the structure which provided the clamp part 15 which clamps the overlap part of the workpiece | work W3, W4 (refer FIG. 4) facing the front end side of the said clamp jaws 5A-1 and 5B-1. And the guide surface 9 is provided facing the front-end | tip part of this clamp part 15. As shown in FIG. Further, a root opening portion 17 into which the edge of the workpiece can enter is provided in the deep surface portion 11 of the opening portion 7.

  When the clamp jig 1A clamps the overlapped portions of the workpieces W3 and W4 with the clamp portion 15, the clamp jig 1A is positioned so that the overlapped portions of the workpieces W3 and W4 are located between the clamp portions 15, while The end edge portion of the workpiece W3 is held in a state of being sandwiched between the root openings 17 as shown in FIG.

  With the above configuration, the overlapping portion of the workpieces W3 and W4 is strongly clamped by the clamp portion 15 due to the elastic deformation of the clamp jaws 5A-1 and 5B-1. At this time, since the edge portion of one workpiece W3 is sandwiched between the root openings 17, the clamp jig 1A is centered on the clamp portion 15 sandwiching the overlapping portion of the workpieces W3 and W4. Rotation along the surface is restricted. Therefore, even when the overlapping portion of the workpieces W3 and W4 is located at a position far away from the end edge portion of the workpiece W3, it can be securely clamped securely.

  Since the clamp jig 1A is obtained by laser cutting a plate material in the same manner as the clamp jig 1, the structure is simple and the manufacture is easy. By the way, in the said structure, as shown to FIG. 3 (B), it is also possible to form the slit 18 or the notch part of an appropriate shape in at least one of clamp jaw 5A-1 or clamp jaw 5B-1. Thus, by forming the slit 18, it becomes easier to produce elastic deformation.

  FIG. 5 shows a clamp jig 1B according to the third embodiment. As shown in FIG. 6B, the clamp jig 1B clamps the other workpiece W6 on the outer side of the flange portion F of the plate-like workpiece W5 provided with the flange portion F. This is a clamp jig. The clamp jig 1B includes an arm portion 19. At the distal end of the arm portion 19, a hook portion 21 that can be locked to the distal end edge of one work W5 is provided. And at the base end part of the arm part 19, a pressing part 23 for pressing the other work W6 against the flange part F of one work W5 intersects the longitudinal direction of the arm part 19. It protrudes in the direction (perpendicular direction) to do.

  As shown in FIG. 5B, the hook portion 21 in the clamp jig 1 </ b> B is in a direction orthogonal to the longitudinal direction of the arm portion 19 and the same direction as the protruding direction of the pressing portion 23. A projecting portion 25 projecting toward the top is provided. A protrusion portion 27 that protrudes toward the base end portion is provided at the distal end portion of the protrusion portion 25. The gap 29 between the flange projecting portion 27 and the arm portion 19 is formed to have a size corresponding to the plate thickness of the one workpiece W5. And the inner surface 27F of the said collar protrusion part 27 is formed in the circular-arc-shaped convex curved surface.

  In the above configuration, as shown in FIG. 6 (A), in order to clamp the other work W6 on the outside of the flange portion F of one work W5, as shown in FIG. 6 (A), The hook portion 21 in the clamp jig 1B is locked to the edge portion of the workpiece W5. 6A, when the arm portion 19 of the clamp jig 1B is rotated counterclockwise with the hook portion 21 as a fulcrum, the pressing portion 23 provided at the base end portion of the arm portion 19 is moved to the other side. The workpiece W6 is pressed against the flange portion F and clamped.

  At this time, since the inner side surface 27F of the hook protrusion portion 27 in the hook portion 21 is formed in an arc-shaped convex curved surface, the end edge portion of one work W5 is smoothly engaged with the gap 29. It is.

  By the way, as shown in FIG. 5C, by forming a slit 31 in the arm portion 19 in a direction perpendicular to the longitudinal direction of the arm portion 19, the arm portion 19 is likely to be elastically deformed. It will be. In addition, it can replace with the said slit 31 and can also be set as the notch part of an appropriate shape.

  The clamp jig 1B can be obtained by performing laser cutting processing of a plate material in the same manner as the clamp jigs 1 and 1A. Therefore, the configuration of the clamp jig 1B is simple and easy to manufacture.

  As understood from the above description of the embodiment, the clamp jigs 1, 1 </ b> A, 1 </ b> B according to the embodiment of the present invention can be easily manufactured by laser cutting a plate material. Is simple and easy to manufacture. And in use, since the overlapping part of a workpiece | work is clamped using the elastic deformation of clamp jig | tool 1,1A, 1B, it can clamp strongly. In addition, it is also possible to use a plurality of clamping jigs in a stacked manner, and the clamping force can be easily adjusted.

1, 1A, 1B Clamp jig 3 Jig body 5A, 5B Clamp jaw 7 Opening 9 Guide surface 11 Back surface 13 Slit 15 Clamping part 17 Root opening 18 Slit 19 Arm part 21 Hook part 23 Pressing part 25 Projection Part 27 鉤 Protruding part 29 Gap 31 Slit

Claims (9)

  A clamp jig for clamping a plate-shaped workpiece in an overlapped state, wherein a clamp jaw is provided on a jig main body made of a plate material so as to clamp the overlapped portion of the workpiece, and the clamp The tip of the jaw is provided with a guide surface for guiding the overlapped part of the workpiece between the opposed clamp jaws, and the jig body and the opposed clamp jaws are provided on the same plane. Clamp jig to be used.   The clamp jig according to claim 1, wherein an opening is provided between the opposing clamp jaws, and a slit or a notch for facilitating elastic deformation of the clamp jaw is formed on the deep surface portion of the opening. A clamping jig characterized by comprising.   3. The clamping jig according to claim 2, wherein a deep surface portion of the opening constitutes a workpiece positioning portion.   The clamping jig according to claim 1, wherein an opening is provided between the opposing clamping jaws, and a root opening that allows a workpiece to enter is provided in a deep surface portion of the opening. Clamp jig.   5. The clamping jig according to claim 4, wherein at least one of the opposed clamping jaws is provided with a slit or a notch for facilitating elastic deformation of the clamping jaw.   A clamping jig for clamping a plate-shaped workpiece having a flange portion in a state where the other workpiece is overlapped on the outside of the flange portion, and a hook portion that can be locked to an edge of the one workpiece. An arm portion provided at the distal end portion is provided, and a pressing portion for pressing the other work against the flange portion is projected at a base end portion of the arm portion in a direction intersecting the longitudinal direction of the arm portion. A clamping jig characterized by comprising.   The clamp jig according to claim 6, wherein the arm portion and the pressing portion are made of a plate material and are provided on the same plane.   The clamping jig according to claim 6 or 7, wherein the hook portion includes a protruding portion protruding in a direction intersecting with a longitudinal direction of the arm portion, and the base end portion is provided at a distal end portion of the protruding portion. Provided with a flange projecting portion projecting in the direction, the distance between the arm portion and the collar projecting portion is a dimension corresponding to the plate thickness of the one workpiece, and the inner surface of the collar projecting portion is formed in a convex curved surface A clamping jig characterized by the above. 9. The clamping jig according to claim 6, 7 or 8, wherein the arm part is provided with a slit or a notch part for facilitating elastic deformation of the arm part.

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