TW201634186A - Clamp - Google Patents

Abstract

A clamp is used for holding a plate type work-piece. The clamp includes a base. The base includes a top surface and a bottom surface. A first positioning member and two guide slots are formed on the base. Two movable members are located on the guiding slots, respectively. The movable member can slide along the guide slot. The two movable members and the first positioning member form a clamping space together.

Description

Fixture

The present invention relates to a clamping fixture, and more particularly to a clamp for holding workpieces of different sizes.

Electronic equipment needs to be tested for various properties such as extrusion, vibration and key life after assembly. In the case of a tablet, the tablet needs to be fixed by means of a fixture when it is subjected to performance testing. In the prior art, the structure and size of the clamping space of the jig are generally set according to the structure and size of the workpiece, that is, the shape and size of the clamping space of the jig are constant. When the tablet is updated, the external structure and size of the workpiece will change, so that the previous fixture is no longer suitable for being used, and the new fixture needs to be recreated, resulting in waste of resources.

In view of this, it is necessary to provide a jig having a variable clamping space.

A clamp for clamping a flat workpiece comprises a bottom plate, the bottom plate comprising a top surface and a bottom surface, wherein the bottom plate is provided with two guiding grooves and a first positioning member, and each guiding groove is further A movable member is disposed, the movable member is slidable along the guide groove, and the two movable members and the first positioning member are collectively disposed to form a clamping space.

Compared with the prior art, the bottom plate of the clamp of the present invention is provided with a guide groove, and the movable member is freely slid along the direction of the guide groove to change the size of the clamping space, thereby making the clamp suitable for various structures or sizes. Workpiece.

Figure 1 is a perspective view of the jig of the present invention.

Figure 2 is a partial cross-sectional enlarged view of the jig shown in Figure 1.

Figure 3 is a perspective view of the clamp holding workpiece shown in Figure 1.

Figure 4 is a cross-sectional view of the apparatus of Figure 3.

Figure 5 is a perspective view of the workpiece shown in Figure 1 clamped to another workpiece.

The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.

This embodiment specifically describes a jig 100 for holding a rectangular flat workpiece 200. In the embodiment, the rectangular flat workpiece 200 is a tablet computer. Referring to FIG. 1 , the jig 100 of the present invention includes a bottom plate 10 , a first positioning member 20 disposed on the bottom plate 10 , two guiding grooves 30 disposed on the bottom plate 10 , and two movable members 40 respectively disposed on the guiding groove 30 . And a plurality of connectors 50 for fixing the movable member 40.

The bottom plate 10 is a flat plate body including a top surface 11 parallel to the top surface 11 and facing away from a bottom surface 12, and a plurality of side surfaces 13 connecting the top surface 11 and the bottom surface 12. In this embodiment, the bottom plate 10 has a rectangular shape with four sides 13 and the bottom plate 10 includes four right angles. It can be understood that the shape of the bottom plate 10 can also be changed according to actual needs.

The first positioning member 20 is disposed at a right angle of the top surface 11 of the bottom plate 10 and is integrally formed with the bottom plate 10. The first positioning member 20 includes a limiting portion 21 and a fixing portion 22 . The limiting portion 21 is of a right angle type and is disposed on the top surface 11 of the bottom plate 10. The limiting portion 21 is formed to extend vertically upward from the top surface 11 of the bottom plate 10 toward the bottom plate 10. The fixing portion 22 has a triangular shape and is suspended above the top surface 11 of the bottom plate 10. The fixing portion 22 is formed to extend from the inner side of the right-angled tip end of the limiting portion 21 toward the limiting portion 21 . The fixing portion 22 is in contact with both right angle sides of the limiting portion 21 .

The two guiding grooves 30 are disposed at the edge of the top surface 11 of the bottom plate 10. The two guide grooves 30 are perpendicular to each other and meet at a right angle of the bottom plate 10. One of the guide grooves 30 extends through two opposite sides of the bottom plate 10, and the other guide groove 30 extends through the other opposite sides of the bottom plate 10. Each of the guide slots 30 is stepped and includes a sliding slot 31 and a latching slot 32. The sliding slot 31 is vertically recessed from the top surface 11 of the bottom plate 10 toward the bottom surface 12 thereof to form an elongated rectangular track. The buckle groove 32 is another longitudinal rectangular track formed by further recessing from the bottom of the sliding slot 31 toward the bottom surface 12 of the bottom plate 10. The width of the buckle groove 32 is greater than the width of the sliding slot 31. The depth of the sliding slot 31 is greater than the depth of the buckle groove 32.

The two movable members 40 are slidably coupled to the top surface 11 of the bottom plate 10 through the guide groove 30. The two movable members 40 are slidable along the direction of the guide groove 30, respectively. Each of the movable members 40 includes a retaining wall 41 and a blocking piece 42 . Each of the movable members 40 further defines at least one fixing hole 43 . In the present embodiment, the retaining wall 41 is of a right angle type, and its right-angled edge is placed above the guide groove 30, and the right-angled edge is placed on the top surface 11 of the bottom plate 10. The blocking piece 42 has a triangular shape, is fixed to the top end of the right side of the retaining wall 41, and is suspended above the top surface 11 of the bottom plate 10. The fixing hole 43 penetrates the upper surface of the upper wall 41. In the embodiment, two movable holes 43 are defined in each movable member 40. The two fixing holes 43 are spaced apart from the retaining wall 41 , and each of the fixing holes 43 is opposite to the guiding groove 30 for receiving the connecting member 50 .

Referring to FIG. 2 , the connecting member 50 is disposed in the guiding groove 30 and is slidable along the direction of the guiding groove 30 . The connecting member 50 is used for slidingly connecting the movable member 40 to the bottom plate 10. In the present embodiment, the jig 100 has four connectors 50. Each of the two fixing members 50 is coupled to a movable member 40. In this embodiment, the fixing member 50 adopts a matching sliding member and a fastener. In this embodiment, the sliding member is a screw 51, and the fastener is a nut 52. It will be appreciated that the connector 50 can also employ other components. The screw 51 includes a screw head 511 and a screw 512. The screw head 511 has a rectangular shape and a width between the slot 31 of the guide groove 30 and the width of the buckle groove 32. The screw head 511 is received in the buckle groove 32 of the guide groove 30. The screw 512 is disposed at the center of the screw head 511. The screw 512 has a cylindrical shape. The diameter of the screw 512 is smaller than the width of the sliding groove 31 of the guide groove 30. The screw 512 is received in the sliding slot 31 of the guiding slot 30 and protrudes from the top surface of the sliding slot 31. The screw 512 can be disposed through the fixing hole 43 of the movable member 40 to position the movable member 40. After the positioning, moving the movable member 40 can drive the connecting member 50 to slide along the guiding groove 30. The outer diameter of the nut 52 is larger than the width of the sliding slot 31 of the guide groove 30. The nut 52 cooperates with the screw 512 of the screw 51 to fix the movable member 40. After being fixed, the two movable members 40 and the first positioning member 20 will be enclosed to form a rectangular clamping space 60.

Referring to FIG. 2 and FIG. 3, when the jig 100 of the present invention is assembled, firstly, the screw 51 of the connecting member 50 is slid into the guiding groove 30 from the side of the bottom plate 10, and the sliding of each guiding groove 30 is performed. Two screws 51 are inserted, and the screw head 511 of the screw 51 is placed in the buckle groove 32 of the guide groove 30, so that the screw 512 of the screw 51 is placed in the sliding slot 31 of the guide groove 30 and protrudes. The top surface 11 of the bottom plate 10 is described. Then, the movable member 40 is mounted on the connecting member 50 such that the screws 512 of the two screws 51 in each of the guiding grooves 30 are passed through the fixing holes 43 of the movable member 40. Next, the two movable members 40 are respectively moved to the designated positions according to the size of the actual workpiece 200 to change the size of the clamping space 60. Finally, a nut 52 mated with the screw 51 is mounted to the screw 51, and the nut 52 is tightened to fix the movable member 40 between the nut 52 and the top surface 11 of the bottom plate 10.

Referring to FIG. 3 and FIG. 4, when the jig 100 of the present invention is in operation, a flat workpiece 200, such as a tablet computer, is placed on the top surface 11 of the bottom plate 10, so that the workpiece 200 is attached to the top surface of the bottom plate 100. 11. Then, the workpiece 200 is moved to the limit portion 21 of the first positioning member 20 at a right angle, and the right angle is located at the top surface 11 of the bottom plate 10 and the fixing portion 22 of the first positioning member 20 between. Then, the two movable members 40 are respectively moved until the limiting portion 41 of the movable member 40 resists the workpiece 200. At this time, the screw head 511 of the screw 51 and the screw 512 will follow in the guiding groove 30. mobile. Finally, the nut 52 is mounted and tightened to secure the movable member 40. After the workpiece 200 is fixed, the limiting portion 21 of the first positioning member 20 and the retaining wall 41 of the movable member 40 will restrict its horizontal movement; the fixing portion 22 of the first positioning member 20 and the The top surface 11 of the bottom plate 10 will limit its vertical movement.

Referring to FIG. 5, the jig 100 of the present invention may further include a second positioning member 70. The second positioning member 70 has the same shape and size as the first positioning member 20. The second positioning member 70 is disposed at another right angle of the bottom plate 10 and is opposite to the first positioning member 20 . The second positioning member 70 and the first positioning member 20, and the two movable members 40 are enclosed as the maximum size clamping space 60a of the jig 100 to clamp the workpiece 200a.

Compared with the prior art, the bottom plate 10 of the jig 100 of the present invention is provided with a guide groove 30, which is freely slid along the direction of the guide groove 30 by the two movable members 40 to change the size of the clamping space 60, so that the jig of the present invention 100 can hold and fix workpieces 200 of different sizes. Therefore, the situation that a plurality of jigs 100 need to be manufactured due to the difference in the size of the workpiece 200 is avoided, saving resources and costs. Further, the movable member 40 and the connecting member 50 of the jig 100 of the present invention are simple in structure and simple in assembly, and when the component is damaged, only part of the component is replaced without re-manufacturing the entire jig.

In addition, the jig 100 of the present invention is fixed only by a few corners of the workpiece 200. When the jig 100 is used as a clamping device for the test jig, all functions of the side of the workpiece can be fixed only once. The hole is detected without reversing the workpiece 200 for secondary fixing to adjust the position of the function hole so as not to be blocked by the limit device, which is simple in operation and saves man-hours.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

100‧‧‧ fixture

10‧‧‧floor

11‧‧‧ top surface

12‧‧‧ bottom

13‧‧‧ side

20‧‧‧First positioning piece

21‧‧‧Limited

22‧‧‧ Fixed Department

30‧‧‧Guide

31‧‧‧Chute

32‧‧‧ buckle groove

40‧‧‧Activities

41‧‧‧Retaining wall

42‧‧‧stop film

43‧‧‧Fixed holes

50‧‧‧Connecting parts

51‧‧‧ screws

511‧‧‧ screw head

512‧‧‧ screw

52‧‧‧ nuts

60, 60a‧‧‧Clamping space

70‧‧‧Second positioning parts

200, 200a‧‧‧ workpiece

no

100‧‧‧ fixture

10‧‧‧floor

11‧‧‧ top surface

12‧‧‧ bottom

13‧‧‧ side

20‧‧‧First positioning piece

21‧‧‧Limited

22‧‧‧ Fixed Department

30‧‧‧Guide

31‧‧‧Chute

32‧‧‧ buckle groove

40‧‧‧Activities

41‧‧‧Retaining wall

42‧‧‧stop film

43‧‧‧Fixed holes

50‧‧‧Connecting parts

60‧‧‧Clamping space

Claims (10)

A clamp for clamping a flat workpiece comprises a bottom plate, the bottom plate comprising a top surface and a bottom surface, wherein the bottom plate is provided with two guiding grooves and a first positioning member, each guiding groove A movable member is disposed thereon, and the movable member is slidable along the guide groove, and the two movable members and the first positioning member are collectively disposed to form a clamping space. The jig of claim 1, wherein the two guiding grooves are disposed perpendicular to each other, and the first positioning member is disposed at an intersection of the two guiding grooves. The jig of claim 2, wherein the first positioning member comprises a limiting portion and a fixing portion, and the limiting portion extends vertically upward from a top surface of the bottom plate toward the bottom plate. Forming, the fixing portion is formed to extend from the inner side of the top end of the limiting portion toward the limiting portion. The jig of claim 2, wherein the bottom plate has a rectangular shape, and each of the guide grooves runs through opposite sides of the bottom plate, and each of the guide grooves is stepped. The jig of claim 4, wherein each of the guide grooves comprises a sliding slot and a buckle groove, the sliding slot is vertically recessed from a top surface of the bottom plate toward a bottom surface thereof, The bottom of the sliding groove is further recessed toward the bottom surface of the bottom plate, and the width of the buckle groove is larger than the width of the sliding groove. The jig of claim 5, wherein the jig further comprises a plurality of connecting members for connecting the movable member, the connecting member being slidable along the guide groove. The jig of claim 6, wherein the connecting member comprises a sliding member and a fastener matched with the sliding member, the sliding member being received in the guiding groove and The guide groove slides, and the fastener connects the sliding member to the movable member. The jig of claim 7, wherein the fastener is received in a buckle groove of the guide groove, and the sliding member is received in a sliding groove of the guide groove, the fastener Cooperating with the slider to fix the movable member. The jig of claim 6, wherein each movable member is disposed on the guiding groove, and each movable member comprises a retaining wall and a stopping piece, wherein the retaining wall has a right angle shape, The stop piece is fixed to the top end of the right angle of the retaining wall. The jig of claim 2, wherein the jig further comprises a second positioning member, the second positioning member having the same shape and size as the first positioning member, and disposed on the bottom plate A position opposite to the first positioning member.