TWM484646U - Measuring fixture - Google Patents

Description

Detection fixture

The present invention relates to a clamp for holding a workpiece, and more particularly to a detection fixture for holding a workpiece to be detected.

A clamp for detecting an object to be tested (such as a lens) or a workpiece, as shown in FIGS. 6 and 7, includes a first disk 80 and a second disk 90, the first disk 80 having a top surface and a bottom surface, the top surface of the first disk 80 is formed with a plurality of radially disposed sliding slots 81, each of the sliding slots 81 is formed with a through hole 811, and a sliding block 82 is disposed in the sliding slot 81. A limiting block 83 is disposed on the opposite sides of the opposite sides of each of the sliders 82. The limiting blocks 83 move the sliders 82 inward or outward according to the direction of the sliding slots 81. The second disc 90 is disposed at the bottom end of the first disc 80 and rotates coaxially relative to the first disc 80. The second disc 90 is formed with a plurality of guide grooves. 91. Each of the guide grooves 91 is arcuate and has a guide rod 92. The guide rod 92 is disposed in the guide groove 91 and the through hole 811 and connected to the slider 82 to drive the slider 82 to move. When the second disc 90 rotates relative to the first disc 80, since the guide grooves 91 of the second disc 90 are arcuate, the guide rods 92 and the sliders 82 are driven inward or toward each other. The outer movements are such that the sliders 82 can collectively hold the lens (not shown) or the workpiece (not shown) at the center of the first disc 80.

It can be seen from the above that the conventional clamp can drive the sliders to hold the lens or the workpiece by rotating, and reduce the provision of a retractable driving member (such as a pneumatic cylinder or a hydraulic cylinder) at each slider to drive the slider. However, the aforementioned jig needs to be provided with a plurality of shaped stoppers to prevent the slider from coming off, so that there is still a problem of complicated structure.

As described above, although the conventional rotary type jig can reduce the separately provided driving members, there are still problems of complicated structure. Therefore, the main purpose of the present invention is to provide a detecting jig, which mainly forms a bevel of the guide groove on the bottom surface of the disc. Then, a guide sleeve is sleeved on the outer side of the guide rod, and the guide sleeve is matched with the guide groove to generate a limit effect, and no additional positioning block is needed, thereby solving the problem that the existing clamp structure is complicated.

The main technical means adopted for achieving the foregoing object is the foregoing detecting fixture, comprising: a first disc having a top surface and a bottom surface, the top surface of the first disc being formed with a plurality of radially disposed slides a groove, each of the chutes is formed with a through hole and is provided with a clamping member; and a second disc is disposed on the bottom surface of the first disc and coaxially rotates relative to the first disc, the second disc is formed There are a plurality of guide grooves, each of which is opposite to the through hole of each of the sliding grooves, and a bottom surface of the second disk is formed with an abutting portion around each of the guiding grooves, and each guiding groove is provided with a guiding member, wherein each guiding member is One end is slidably abutted against each abutting portion, and the opposite end is connected to a corresponding clamping member.

An abutting portion is formed around the guide groove of the bottom surface of the second disc by using the detecting jig composed of the foregoing components, and one end of the guiding member is matched with the shape of the abutting portion to abut against the abutting portion, and the other end of the guiding member is clamped The holding members are connected, so that one end of each of the sliding blocks and each of the guiding members abuts against each of the sliding grooves and the respective abutting portions to clamp the first disc and the second disc to generate a limit effect. The utility model has the advantages of simple structure, material saving and low processing cost, and solves the problem that the existing jig additionally sets the limit block to prevent the slider from being detached, resulting in complicated structure and increased cost.

Referring to FIGS. 1 and 2, a first disc 10, a second disc 20, three clamping members 30 and three guiding members 40 are included. A disc 10 is disposed coaxially with the second disc 20, and the gripping members 30 are disposed on the first disc 10, and the guide members 40 are disposed in the second disc 20.

As shown in FIG. 3 and FIG. 4 , the first disc 10 has a top surface and a bottom surface. The top surface of the first disc 10 is formed with three sliding slots 11 , and each sliding slot 11 is a first circular disk 10 . In the radial arrangement, the bottom surface of each of the sliding grooves 11 is formed with a through hole 12 penetrating through the first disk 10, and the through hole 12 is formed in an elongated shape, and the clamping member 30 is disposed in each of the sliding grooves 11. Further, the first disk 10 is formed with a detecting hole 13 at the center thereof, and a bottom surface of the first disk 10 forms an annular flange 14 around the detecting hole 13. Further, the first disk 10 is formed with three coupling holes 15 arranged equidistantly on the bottom surface thereof.

The second disc 20 is disposed on the bottom surface of the first disc 10, and has a shaft hole 21 formed at the center thereof. The flange 14 of the first disc 10 is sleeved in the shaft hole 21 to make the second circle. The disk 20 is rotatable relative to the first disk 10 in a coaxial manner. The second disc 20 has a top surface and a bottom surface, and is formed with a plurality of guide grooves 22 extending through the top surface to the bottom surface. In the preferred embodiment, the guide grooves 22 are arcuate and have a shaft hole 21 The tangential arrangement, the guide grooves 22 may also be linear but aligned with the tangential line of the shaft hole 21, each guide groove 22 is for passing the guide member 40, and the second disk 20 is formed with a plurality of concentric circles with its center. The positioning grooves 23 are arranged in an arc shape and are provided with a positioning member 50. Each positioning member 50 is combined with each of the coupling holes 15 of the bottom surface of the first disk 10. The bottom surface of the second disc 20 is formed with an abutting portion 221 and a top abutting portion 231 around the guiding groove 22 and each of the positioning grooves 23, as shown in FIG. 4, each abutting portion 221 and each abutting portion 231 is located between the bottom surface of the first disc 10 and each of the guide grooves 22 and the groove walls of the positioning grooves 23.

The clamping member 30 includes a slider 31, a clamping block 32 and a plurality of coupling bolts 33. The slider 31 is located on the bottom surface of the clamping block 32 and is in contact with the sliding slot 11. The slider 31 and the clamping block 32 are respectively formed. There are two screw holes, and the coupling bolts 33 are respectively screwed into the screw holes of the slider 31 and the clamping block 32 to jointly combine the slider 31 and the clamping block 32. Further, a bottom surface of the slider 31 is formed with a bolt hole 311 corresponding to the through hole 12 and the guide groove 22. The slider 31 is made of a material having a low frictional force. Further, each of the clamping blocks 32 is formed with an angle 321 at one end of the detecting hole 13, and each of the clamping blocks 32 abuts against the end faces of the adjacent clamping blocks 32 by the cutting angles 321 to facilitate adjustment or positioning of the clamping position.

The guiding member 40 includes a guiding rod 41 and a guiding sleeve 42. One end of the guiding sleeve 42 forms an annular rib 421, so that the guiding sleeve 42 has a T-shaped cross section and a constant hole is formed at the center thereof. 422, the through hole 422 is for the guide rod 41. Please refer to FIG. 5, the abutting portion 221 of the bottom surface of the second disc 20 is beveled, and the rib 421 of each guide sleeve 42 is The shape of each abutting portion 221 is matched into a bevel shape, and each of the guiding rods 41 is slidably provided in the sliding groove 22 by the outer cover bushing 42 and has a free end and a slider of the clamping member 30. 31 connections. The guide sleeve 42 is made of a material having a low frictional force. The abutting portion 221 of the bottom surface of the second disc 20 is in a concave step shape or a concave arc shape, and the rib 421 of each guide sleeve 42 is a stepped or convex shape corresponding to the abutting portion 221. Curved.

The positioning member 50 includes a positioning rod 51 and a positioning sleeve 52. One end of the positioning sleeve 52 forms an annular stopper 521, so that the positioning sleeve 52 has a T-shaped cross section, but the length thereof is shorter than the guiding sleeve 42. The center of the positioning sleeve 52 is formed with a matching hole 522 for receiving the positioning rod 51. The top abutting portion 231 is formed in an oblique shape, and the stopper 521 of each positioning sleeve 52 is opposite to each of the abutting portions 231. The shape of the locating rod 51 is slidably disposed in the locating groove 23 and abuts against the abutting portion 231 by the outer locating sleeve 52, and has a free end and a first disc. The coupling holes 15 of 10 are connected. The top abutting portion 231 of the bottom surface of the second disk 20 is in a concave step shape or a concave arc shape, and the stopper 521 of each positioning sleeve 52 is a stepped or convex shape corresponding to the top abutting portion 231. Curved. The positioning sleeve 52 is made of a material having a low frictional force.

As can be seen from the above, the abutting portion 221 is formed around the guide groove 22 on the bottom surface of the second disk 20, and the guide sleeve 42 matching the shape of the abutting portion 221 is engaged with each other, and the slider 31 and the guide sleeve 42 respectively Abutting the chute 11 and the abutting portion 221 to jointly clamp the first disc 10 and the second disc 20 to generate a limit effect, and solving the existing fixture to additionally set the limit block to prevent the slider from being detached The structure is complicated and the problems of materials and costs increase.

10‧‧‧First disc
11‧‧‧Chute
12‧‧‧through hole
13‧‧‧Detection hole
14‧‧‧Flange
15‧‧‧Combination hole
20‧‧‧second disc
21‧‧‧Axis hole
22‧‧‧ Guide slot
221‧‧‧Affiliation
23‧‧‧ positioning slot
231‧‧‧Abutment
30‧‧‧Clamping parts
31‧‧‧ Slider
311‧‧‧Bolt hole
32‧‧‧Clamp
321‧‧‧cut angle
33‧‧‧ Combined tying
40‧‧‧guides
41‧‧‧Guide bars
42‧‧‧ Guide sets
421‧‧‧ ribs
422‧‧‧through holes
50‧‧‧ positioning parts
51‧‧‧ Positioning rod
52‧‧‧ Positioning sleeve
521‧‧ ‧block
522‧‧‧through holes
80‧‧‧First disc
81‧‧‧Chute
811‧‧‧Perforation
82‧‧‧ Slider
83‧‧‧Limited blocks
90‧‧‧second disc
91‧‧‧ Guide slot
92‧‧‧guides

1 is a top perspective view of a preferred embodiment of the present invention. 2 is a bottom perspective view of a preferred embodiment of the present invention. 3 is a top exploded view of a preferred embodiment of the present invention. 4 is a bottom exploded view of a preferred embodiment of the present invention. Figure 5 is a partial cross-sectional view of a preferred embodiment of the present invention. Fig. 6 is a perspective view of a conventional jig. Figure 7 is a cross-sectional view of a conventional jig.

10‧‧‧First disc

20‧‧‧second disc

30‧‧‧Clamping parts

40‧‧‧guides

Claims (10)

A detecting fixture comprises: a first disc having a top surface and a bottom surface, wherein a top surface of the first disc is formed with a plurality of radially arranged sliding grooves, each chute is formed with a through hole and is provided with a a clamping member; and a second disc disposed on the bottom surface of the first disc and coaxially rotating relative to the first disc, the second disc is formed with a plurality of guiding grooves, each guiding groove is sliding The through holes of the slots are opposite to each other, and the bottom surface of the second disk is formed with an abutting portion around the guiding grooves, and each guiding groove is provided with a guiding member, and one end of each guiding member is slidably abutted against each abutting portion. The opposite end is connected to the corresponding clamping member. The detecting fixture according to claim 1, wherein the guiding member comprises a guiding rod and a guiding sleeve, wherein one end of the guiding sleeve forms an annular rib, and a hole is formed at a center of the guiding sleeve, the through hole It is for wearing the guide. The detecting jig according to claim 2, wherein the abutting portions are formed in an oblique shape, and the ribs of the guide bushes are matched with the shape of the abutting portion to have an oblique shape. The detecting jig according to claim 2, wherein the abutting portions are in a concave step shape, and the ribs of the guide bushes are formed in a shape corresponding to the abutting portion. The detecting jig according to claim 2, wherein the abutting portions are formed in a concave arc shape, and the ribs of the guide bushes are arcuately curved corresponding to the abutting portions. The detecting jig according to any one of claims 1 to 5, wherein the clamping member comprises a slider and a clamping block, the slider is disposed between the clamping block and the sliding slot, and the bottom surface of the slider is formed. There is a bolt hole, and the bolt hole is connected with the guide member, and each of the clip blocks is formed with an angle at an end near the center of the first disc, and each clip block is offset from the end surface of the adjacent clip by the chamfer. The detecting jig according to any one of claims 1 to 5, wherein the first disk is formed with a plurality of coupling holes on a bottom surface thereof, and the second disk is formed with a plurality of positioning grooves arranged concentrically with the center of the circle, and each positioning groove An abutting portion is formed on a bottom surface of the second disc, and each of the positioning slots is provided with a positioning member, and each of the positioning members is respectively connected to each of the coupling holes of the bottom surface of the first disc. The detecting jig according to claim 6, wherein the first disc has a plurality of coupling holes formed on a bottom surface thereof, and the second disc is formed with a plurality of positioning grooves arranged concentrically with the center of the circle, and the positioning grooves are located on the second disc. The bottom surface is formed with a top abutting portion, and each of the positioning grooves is provided with a positioning member, and each of the positioning members is respectively connected to each of the coupling holes of the bottom surface of the first disc. The detecting fixture according to claim 7, wherein the positioning member comprises a positioning rod and a positioning sleeve, wherein one end of the positioning sleeve forms an annular stopper, and the center of the positioning sleeve is formed with a constant hole, and the through hole is The positioning rods are disposed, and the top abutting portions are formed in an oblique shape, and the stoppers of the positioning sleeves are matched with the shape of the top abutting portion to form an oblique shape. The detecting fixture according to claim 8, wherein the positioning member comprises a positioning rod and a positioning sleeve, wherein one end of the positioning sleeve forms an annular stopper, and the center of the positioning sleeve is formed with a constant hole, and the through hole is The positioning rods are disposed, and the top abutting portions are formed in an oblique shape, and the stoppers of the positioning sleeves are matched with the shape of the top abutting portion to form an oblique shape.