CN215986162U

CN215986162U - Positioning test fixture

Info

Publication number: CN215986162U
Application number: CN202121958770.9U
Authority: CN
Inventors: 吴超
Original assignee: Shanghai Wingtech Electronic Technology Co Ltd
Current assignee: Shanghai Wingtech Electronic Technology Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-08
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to a positioning test fixture, which comprises a fixture body, an adjusting module, a driving piece, a limiting block and an auxiliary adjusting component; the adjusting module and the limiting block are arranged on the jig body, and a bearing surface for placing the test element is formed on the jig body; the limiting block is arranged at one end of the driving piece and used for abutting against the test element, and the adjusting module is arranged at the other end of the driving piece and is in transmission connection with the driving piece, so that the adjusting module moves towards the direction close to the test element under the driving of the driving piece, and the adjusting module is in plug-in fit with the test element; the auxiliary adjusting assembly is arranged on the jig body and located on one side of the adjusting module, and the auxiliary adjusting assembly is used for being detachably connected with the adjusting module, so that the adjusting module is limited to move towards the direction close to the testing element when the testing element and the adjusting module are separated from being plugged, and the problems that in the prior art, the adjusting module is required to be manually dragged by an operator, the operation is inconvenient, and time and labor are wasted are solved.

Description

Positioning test fixture

Technical Field

The present disclosure relates to jig technology, and particularly to a positioning test jig.

Background

In order to improve productivity, repeat specific actions or make work more accurate, ensure the productivity and quality of products, reduce the working strength of operators and reduce the complexity of work, various positioning test fixtures are commonly used in the production process of various industries.

The positioning test fixture usually includes adjusting module and driving piece etc. and the driving piece is used for the drive to adjust the module and removes and carry out the grafting experiment with test element towards test element's direction, however when needs adjust the module, needs operating personnel to manually pull out the regulation module and drag the regulation module and adjust for the debugging operation is wasted time and energy.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a positioning test fixture.

The utility model provides a positioning test fixture, which comprises a fixture body, an adjusting module, a driving piece, a limiting block and an auxiliary adjusting component;

the adjusting module and the limiting block are arranged on the jig body, and a bearing surface for placing a test element is formed on the jig body;

the limiting block is arranged at one end of the driving piece and used for abutting against the test element, and the adjusting module is arranged at the other end of the driving piece and is in transmission connection with the driving piece, so that the adjusting module moves towards the direction close to the test element under the driving of the driving piece, and the adjusting module is in insertion fit with the test element;

the auxiliary adjusting assembly is arranged on the jig body and located on one side of the adjusting module, and the auxiliary adjusting assembly is used for being detachably connected with the adjusting module, so that the adjusting module is limited to move towards the direction close to the test element when the test element is separated from the adjusting module in an inserting mode.

According to an embodiment of the present disclosure, the auxiliary adjusting assembly includes a connecting seat fixed on the jig body and a clamping piece rotatably connected with the connecting seat, and a clamping groove used for being matched with the clamping piece is formed on the adjusting module, so that when the testing element is separated from the adjusting module, the clamping piece is clamped in the clamping groove to limit the adjusting module to move towards a direction close to the testing element.

According to an embodiment of the present disclosure, a sliding groove is formed on the clamping member, a positioning hole is formed at a position of the connecting seat corresponding to the sliding groove, and the limiting member sequentially penetrates through the sliding groove and the positioning hole, so that the connecting seat and the clamping member are rotatably connected.

According to an embodiment of the present disclosure, a jig platform is disposed on the jig body, the bearing surface is formed on the jig platform, and the test element is disposed on the jig platform and used for being matched with the adjusting module.

According to an embodiment of the present disclosure, the adjusting module includes a testing connector and an adjusting module, the testing connector is disposed on the adjusting assembly, the adjusting module is disposed on the jig body, and the adjusting module is used for adjusting the position of the testing connector to match with the testing element.

According to an embodiment of the present disclosure, the adjusting module includes a first slider and a second slider, the first slider is disposed on the fixture body and can move along a length direction of the fixture body to enable the testing connector to approach or depart from the testing element;

the second slider is arranged on the first slider and is connected with the first slider in a sliding mode, and the test joint is arranged on the second slider so that the second slider moves relative to the first slider along the width direction of the jig body to change the horizontal position of the test joint.

According to an embodiment of the present disclosure, the second slider includes a first sub slider and a second sub slider, the first sub slider is slidably connected to the first slider, the second sub slider is slidably connected to the first sub slider, and the test connector is disposed on the second sub slider, so that the second sub slider moves along a height direction of the jig body relative to the first sub slider to change a height position of the test connector.

According to an embodiment of the present disclosure, the adjusting module further includes a test connection block, the test connection block is disposed on one side of the second sub-slider, and the test connector is disposed on the test connection block; and an elastic piece is arranged between the test connecting block and the second sub-sliding block.

According to one embodiment of the present disclosure, the test element is an electronic terminal or a contoured terminal conforming to the contour of the electronic terminal;

and the electronic terminal and one side of the profiling terminal close to the adjusting module are provided with jacks capable of being matched with the adjusting module in a plugging manner.

According to an embodiment of the disclosure, a positioning part is arranged on one side, close to the jig body, of the profiling module, a positioning hole is formed in the position, corresponding to the positioning part, of the jig body, and the profiling module is fixed on the jig body through the matching of the positioning part and the positioning hole.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the utility model provides a positioning test fixture, which comprises a fixture body, an adjusting module, a driving piece, a limiting block and an auxiliary adjusting component; the adjusting module and the limiting block are arranged on the jig body, and a bearing surface for placing the test element is formed on the jig body; the limiting block is arranged at one end of the driving piece and used for abutting against the test element, and the adjusting module is arranged at the other end of the driving piece and is in transmission connection with the driving piece, so that the adjusting module moves towards the direction close to the test element under the driving of the driving piece, and the adjusting module is in plug-in fit with the test element; the auxiliary adjusting assembly is arranged on the jig body and located on one side of the adjusting module, and the auxiliary adjusting assembly is used for being detachably connected with the adjusting module, so that the adjusting module is limited to move towards the direction close to the testing element when the testing element and the adjusting module are separated from being plugged, and the problems that in the prior art, the adjusting module is required to be manually dragged by an operator, the operation is inconvenient, and time and labor are wasted are solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a positioning test fixture according to the present disclosure;

fig. 2 is a schematic structural diagram of the positioning test fixture in the first debugging step of the present disclosure;

fig. 3 is a schematic structural diagram of the positioning test fixture in the second debugging step of the present disclosure;

fig. 4 is a schematic structural diagram of the positioning test fixture in the third debugging step of the present disclosure;

fig. 5 is a schematic structural diagram of the positioning test fixture in the fourth debugging step according to the present disclosure;

fig. 6 is a schematic partial structure diagram of an adjusting module of the positioning test fixture of the present disclosure;

fig. 7 is a partial schematic structural view of an auxiliary adjusting assembly of the positioning test fixture of the present disclosure.

Wherein, 1, a jig body; 11. a jig flat plate; 12. a support member; 13. a jig platform; 14. a connecting member; 15. positioning holes; 2. an adjusting module; 21. a card slot; 22. testing the joint; 23. an adjustment module; 231. a first slider; 232. a second slider; 2321. a first sub-slider; 2322. a second sub-slider; 24. testing the connecting block; 25. an elastic member; 3. a drive member; 4. a test element; 41. a jack; 5. a limiting block; 6. an auxiliary adjustment assembly; 61. a connecting seat; 62. a clamping piece; 621. a chute; 63. and a limiting member.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

As shown in fig. 1 to 7, the present disclosure provides a positioning test fixture, which includes a fixture body 1, an adjusting module 2, a driving member 3, a limiting block 5 and an auxiliary adjusting assembly 6; the adjusting module 2 and the limiting block 5 are arranged on the jig body 1, and a bearing surface for placing the test element 4 is formed on the jig body 1; the limiting block 5 is arranged at one end of the driving part 3 and used for abutting against the testing element 4, the adjusting module 2 is arranged at the other end of the driving part 3 and is in transmission connection with the driving part 3, so that the adjusting module 2 moves towards the direction close to the testing element 4 under the driving of the driving part 3, and the adjusting module 2 is in insertion fit with the testing element 4; supplementary adjusting part 6 is located tool body 1 and is gone up and be located one side of adjusting module 2, supplementary adjusting part 6 is used for being connected with adjusting module 2 detachable to make test element 4 with adjust module 2 and restrict when breaking away from grafting that adjust module 2 moves towards the direction that is close to test element 4, with the manual regulation module 2 that drags of need operating personnel among the avoiding prior art and lead to the inconvenient operation, and the problem that wastes time and energy.

Specifically, the jig body 1 includes a jig plate 11 shown in fig. 1 and 2 and a plurality of supporting members 12 disposed at the bottom of the jig plate 11, and the plurality of supporting members 12 are disposed at intervals along the circumferential direction of the bottom of the jig plate 11, and are used for supporting the adjusting module 2, the auxiliary adjusting assembly 6, and the like disposed on the jig plate 11. A jig platform 13 for placing or mounting the test element 4 is disposed above the jig plate 11, and a plurality of connectors 14 are disposed at the bottom of the jig platform 13 to support the jig platform 13 on the jig plate 11.

The debugging process for positioning the test fixture can be seen in fig. 2 to 5.

First, as shown in fig. 2, before debugging, that is, in the debugging step, at this time, an operator first manually pulls the adjusting module 2 to the left end of the fixture platform 13 along the direction away from the testing component 4, there is a distance between the adjusting module 2 and the testing component 4, and at this time, the testing component 4 is not yet mounted or placed on the fixture platform 13. And in this step, the auxiliary adjusting assembly 6 is connected with the adjusting module 2. In this embodiment, the driving member 3 is a pen-shaped cylinder.

Then, as shown in fig. 3, a second debugging step is performed, in which the testing component 4 is placed or mounted on the fixture platform 13 for subsequent insertion and matching testing with the adjusting module 2.

Next, as shown in fig. 4, the third debugging step is performed, the driving member 3 is started at this time, and the limiting block 5 is pulled to move in the direction close to the testing element 4 and abut against the testing element 4, and the auxiliary adjusting assembly 6 is connected with the adjusting module 2 so as to limit the adjusting module 2 to move in the direction close to the testing element 4, thereby avoiding the problem that the adjusting module 2 is manually dragged by an operator in the prior art, and the whole debugging operation is inconvenient.

Finally, as shown in fig. 5, the operator manually removes the connection between the adjusting module 2 and the auxiliary adjusting component 6 to separate the adjusting module 2 from the auxiliary adjusting component 6, and at this time, the adjusting module 2 can move in the direction close to the testing component 4 and perform the insertion matching test with the testing component 4, so as to adjust the position, height, and the like of the adjusting module 2 according to the testing process and the result, thereby completing the debugging of the positioning testing fixture.

As shown in fig. 1 to 5 and 7, the auxiliary adjusting assembly 6 includes a connecting seat 61 fixed on the jig body 1 and a clamping piece 62 rotatably connected with the connecting seat 61, a clamping groove 21 used for being matched with the clamping piece 62 is formed on the adjusting module 2, so that the testing element 4 is separated from the adjusting module 2 for plugging, namely, in the third debugging step, the limiting block 5 supports the testing element 4, the adjusting module 2 needs to be kept stationary, and the clamping piece 62 can be clamped into the clamping groove 21 to limit the movement of the adjusting module 2.

As shown in fig. 1, the connecting seat 61 includes a first connecting plate and a second connecting plate, the first connecting plate is connected to the second connecting plate and has an L-shaped structure, and the first connecting plate is parallel to the jig body 1 and is connected to the jig body 1 through a fastener. The fasteners may be bolts or screws or the like. In this embodiment, the first connecting plate and the second connecting plate are integrally formed, so as to save the processing process.

As shown in fig. 1, the clamping member 62 is a track-shaped plate-shaped member, a sliding slot 621 is formed on the clamping member 62, a positioning hole is formed on the connecting seat 61 at a position corresponding to the sliding slot 621, and the limiting member 63 sequentially penetrates through the sliding slot 621 and the positioning hole, so that the connecting seat 61 and the clamping member 62 can be rotatably connected. The stopper 63 may be a positioning pin or a positioning screw, for example.

As shown in fig. 7, in order to avoid the joint of the joint member 62 in the slot 21, the joint member 62 caused by the vibration of the driving member 3 is locked in the slot 21, so that the joint member 62 is difficult to move out of the slot 21, in the embodiment, the joint member 62 can be set to have a certain inclination, that is, the joint member 62 is set in the slot 21, the joint member 62 and the slot 21 are relatively inclined to enable the incomplete contact between the joint member 62 and the slot 21, and the specific inclination angle of the joint member 62 in the slot 21 can be set according to actual needs.

As shown in fig. 5, when step four is entered, when the adjusting module 2 and the testing element 4 are plugged and matched for testing, if there is a deviation in the plugging and matching between the adjusting module 2 and the testing element 4, the position of the adjusting module 2 (for example, the position along the width and length directions of the jig body 1 or the position along the height direction of the jig body 1) needs to be adjusted, that is, the adjusting module 2 can realize small-amplitude adjustment along the three directions of the length, width and height of the jig body 1, so that the adjusting module 2 and the testing element 4 can be matched for avoiding position deviation when being plugged.

In this embodiment, the adjusting module 2 includes a testing connector 22 and an adjusting module 23, the testing connector 22 is disposed on the adjusting module 23, the adjusting module 23 is disposed on the fixture body 1, the adjusting module 23 is used for adjusting the position of the testing connector 22 to match with the testing component 4, and the testing connector 22 is, for example, a USB connector as shown in fig. 1.

As shown in fig. 1 to 5, for the structure of adjusting the position of the test connector 22 in the length direction, the width direction and the height direction of the fixture body 1, specifically, the adjusting module 23 includes a first slider 231 and a second slider 232, the first slider 231 is disposed on the fixture body 1 and can move along the length direction of the fixture body 1 so that the test connector 22 moves along the direction close to or away from the test element 4 for the insertion and mating test, and the position of the test connector 22 in the length direction of the fixture body 1 can be changed by moving the first slider 231 along the length direction of the fixture body 1; the second slider 232 is disposed on the first slider 231 and slidably connected to the first slider 231, and the test socket 22 is disposed on the second slider 232, so that when there is a position deviation in the width direction between the test socket 22 and the test element 4, the position of the test socket 22 in the width direction of the fixture body 1 is changed by moving the second slider 232 relative to the first slider 231 in the width direction of the fixture body 1.

Specifically, a first sliding portion may be disposed at a sliding position of the first slider 231 and the second slider 232, and a second sliding portion is formed at a position of the second slider 232 corresponding to the first sliding portion 231, so that the first slider 231 and the second slider 232 slide relative to each other through sliding fit of the first sliding portion and the second sliding portion. And the relative sliding direction of the first sliding part and the second sliding part is along the width direction of the fixture body 1, so that the position of the test connector 22 in the width direction of the fixture body 1 can be changed between the first slider 231 and the second slider 231 through the sliding fit of the first sliding part and the second sliding part.

In this embodiment, the first sliding portion may be a sliding groove, and the first sliding portion is a sliding block engaged with the sliding groove; or the first sliding part is a sliding block, and the second sliding part is a sliding groove matched with the sliding block.

As shown in fig. 1 to 5, for the structure of adjusting the position of the test joint 22 in the height direction of the fixture body 1, specifically, the second slider 232 includes a first sub slider 2321 and a second sub slider 2322, the first sub slider 2321 is slidably connected to the first slider 231, the second sub slider 2322 is slidably connected to the first sub slider 2321, and the test joint 22 is disposed on the second sub slider 2322, so that when there is a position deviation in the height direction between the test joint 22 and the test element 4, the second sub slider 2322 moves along the height direction of the fixture body 1 relative to the first sub slider 2321 to change the height position of the test joint 22.

Specifically, a third sliding portion may be disposed at a sliding position of the first sub-slider 2321 and the second sub-slider 2322, and a fourth sliding portion is formed at a position of the second sub-slider 2322 corresponding to the third sliding portion, so that the first sub-slider 2321 and the second sub-slider 2322 slide relative to each other through sliding engagement of the third sliding portion and the fourth sliding portion. And the relative sliding direction of the third sliding part and the fourth sliding part is along the height direction of the jig body 1, so that the position of the test connector 22 in the height direction of the jig body 1 is variable between the first sub-slider 2321 and the second sub-slider 2322 through the sliding fit of the third sliding part and the fourth sliding part.

In this embodiment, the third sliding portion may be a sliding groove, and the fourth sliding portion is a sliding block engaged with the sliding groove; or the third sliding part is a sliding block, and the fourth sliding part is a sliding groove matched with the sliding block.

As shown in fig. 1 to 6, the adjusting module 2 further includes a testing connection block 24, the testing connection block 24 is disposed on one side of the second sub-slider 2322, and the testing connector 22 is disposed on the testing connection block 24; and an elastic member 25 is arranged between the test connection block 24 and the second sub-slider 2322, the elastic member 25 may be provided in plurality, for example, two, and the two elastic members 25 are used to enable the test connector 22 to be in soft connection with the test element 4, so that the test connector 22 is not so stiff when being inserted into the insertion hole 41 of the test element 4, and certain adaptability is provided to reduce damage to the test element 4 during insertion.

For example, the elastic member 25 may be a spring or the like having elastic compression properties and elastic recovery properties.

As shown in fig. 1 and fig. 3 to fig. 5, in order to avoid directly using an electronic terminal such as a mobile phone as the test element 4, thereby causing damage to the mobile phone, in this embodiment, the test element 4 may use a profiling module having the same or similar appearance as the electronic terminal, and the profiling module is provided with a jack 41 in plug-in fit with the test connector 22, so as to be used for performing plug-in test in cooperation with the test connector 22, so as to adjust the position or height of the adjustment module 2 according to the test result, so as to complete the debugging of the positioning test fixture.

In order to ensure the adjustment consistency of the adjusting module 2 in the positioning test process of the positioning test fixture by adopting the profiling module, the profiling module and the fixture platform 13 can be relatively fixed, namely, the profiling module and the fixture platform cannot generate relative displacement. Specifically, a positioning part is arranged on one side of the profiling module close to the jig body 1, a positioning hole 15 is formed in the jig body 1 at a position corresponding to the positioning part, and the profiling module is fixed on the jig body 1 through the matching of the positioning part and the positioning hole 15. The positioning element may be a positioning pin or a positioning screw, and the positioning hole 15 is a pin hole or a screw hole matched with the positioning pin or the positioning screw.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A positioning test fixture is characterized by comprising a fixture body (1), an adjusting module (2), a driving piece (3), a limiting block (5) and an auxiliary adjusting assembly (6);

the adjusting module (2) and the limiting block (5) are arranged on the jig body (1), and a bearing surface for placing the test element (4) is formed on the jig body (1);

the limiting block (5) is arranged at one end of the driving part (3) and used for abutting against the test element (4), the adjusting module (2) is arranged at the other end of the driving part (3) and is in transmission connection with the driving part (3), so that the adjusting module (2) moves towards the direction close to the test element (4) under the driving of the driving part (3), and the adjusting module (2) is in plug fit with the test element (4);

the auxiliary adjusting assembly (6) is arranged on the jig body (1) and located on one side of the adjusting module (2), and the auxiliary adjusting assembly (6) is used for being detachably connected with the adjusting module (2) so that the adjusting module (2) is limited to move towards the direction close to the testing element (4) when the testing element (4) and the adjusting module (2) are disconnected from being plugged.

2. The positioning test fixture according to claim 1, wherein the auxiliary adjusting assembly (6) comprises a connecting seat (61) fixed on the fixture body (1) and a clamping member (62) rotatably connected with the connecting seat (61), and a clamping groove (21) used for being matched with the clamping member (62) is formed on the adjusting module (2), so that when the testing element (4) is separated from the adjusting module (2) in an inserting manner, the clamping member (62) is clamped in the clamping groove (21) to limit the adjusting module (2) to move towards a direction close to the testing element (4).

3. The positioning test fixture according to claim 2, wherein a sliding groove (621) is formed on the engaging member (62), a positioning hole is formed on the connecting seat (61) at a position corresponding to the sliding groove (621), and a limiting member (63) sequentially penetrates through the sliding groove (621) and the positioning hole, so that the connecting seat (61) and the engaging member (62) are rotatably connected.

4. The positioning test fixture according to claim 1, wherein the fixture body (1) is provided with a fixture platform (13), the fixture platform (13) is formed with the bearing surface, and the test element (4) is provided on the fixture platform (13) for matching with the adjusting module (2).

5. The positioning test fixture according to claim 4, wherein the adjusting module (2) comprises a testing connector (22) and an adjusting module (23), the testing connector (22) is disposed on the adjusting module (23), the adjusting module (23) is disposed on the fixture body (1), and the adjusting module (23) is used for adjusting the position of the testing connector (22) to match with the testing element (4).

6. The positioning test fixture according to claim 5, wherein the adjusting module (23) comprises a first slider (231) and a second slider (232), the first slider (231) is disposed on the fixture body (1) and can move along the length direction of the fixture body (1) to enable the test joint (22) to approach or depart from the test element (4);

the second sliding block (232) is arranged on the first sliding block (231) and is connected with the first sliding block (231) in a sliding mode, and the testing joint (22) is arranged on the second sliding block (232) so that the second sliding block (232) can move relative to the first sliding block (231) along the width direction of the jig body (1) to change the position of the testing joint (22) along the width direction of the jig body (1).

7. The positioning test fixture according to claim 6, wherein the second slider (232) comprises a first sub slider (2321) and a second sub slider (2322), the first sub slider (2321) is slidably connected to the first slider (231), the second sub slider (2322) is slidably connected to the first sub slider (2321), and the test joint (22) is disposed on the second sub slider (2322) so that the second sub slider (2322) moves along the height direction of the fixture body (1) relative to the first sub slider (2321) to change the position of the test joint (22) along the height direction of the fixture body (1).

8. The positioning test fixture according to claim 7, wherein the adjusting module (2) further comprises a test connection block (24), the test connection block (24) is disposed on one side of the second sub-slider (2322), and the test joint (22) is disposed on the test connection block (24); and an elastic piece (25) is arranged between the test connecting block (24) and the second sub-sliding block (2322).

9. The positioning test fixture according to any one of claims 1 to 8, wherein the test element (4) is an electronic terminal or a profiling terminal conforming to the contour of the electronic terminal;

and one sides of the electronic terminal and the profiling terminal, which are close to the adjusting module (2), are provided with jacks (41) which can be matched with the adjusting module (2) in a plugging manner.

10. The positioning test fixture according to claim 9, wherein a positioning member is disposed on one side of the profiling module close to the fixture body (1), a positioning hole (15) is formed on the fixture body (1) at a position corresponding to the positioning member, and the profiling module is fixed on the fixture body (1) by the cooperation of the positioning member and the positioning hole (15).