CN111504618B

CN111504618B - Test Fixture

Info

Publication number: CN111504618B
Application number: CN201910106081.6A
Authority: CN
Inventors: 左州全
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2023-12-19
Anticipated expiration: 2039-01-31
Also published as: CN111504618A

Abstract

The application discloses test fixture for but test folding device, but folding device includes first part and can be relative the folding second part of first part, test fixture includes the base and can be relative base upset and gliding movable seat, the base is equipped with first clamping part, first clamping part can hold the relative both sides limit of first part, the movable seat is equipped with second clamping part, second clamping part can hold the relative both sides limit of second part, so that the movable seat drives the second part is relative first part is bent. The base can turn over and slide relative to the movable base, so that the second part can be driven to bend relative to the first part, the length change of the foldable electronic equipment can be adapted, and the bending resistance testing effect is improved.

Description

Test fixture

Technical Field

The application relates to the field of electronic equipment testing, in particular to a testing jig.

Background

At present, the folding mobile phone is required to be subjected to bending resistance test, and is usually placed on a test fixture, and the bending resistance of the folding mobile phone is tested through the test fixture. However, the test fixture cannot adapt to the length change of the folded mobile phone in the bending process, so that the bending resistance test effect of the folded mobile phone is poor.

Disclosure of Invention

The application provides a test fixture.

The application provides a test fixture, wherein, be used for testing collapsible device, collapsible device includes first part and can be relative the folding second part of first part, test fixture includes base, movable seat and transmission connecting rod, transmission connecting rod one end rotates and connects the base, other end sliding connection the movable seat is in order to drive the movable seat can be relative the base upset and slip, the base is equipped with first clamping part, first clamping part includes two relatively slidable first support the subassembly, two first support the subassembly support respectively in the relative both edges of first part, the movable seat is equipped with the second clamping part, the second clamping part includes two relatively slidable second support the subassembly, two the second support the subassembly support respectively in the relative both edges of second part, so that the movable seat drives the second part is relative first part bends.

The application provides a test fixture, through the base can be relative the movable seat upset is slided, the first part of collapsible electronic equipment can be held to the first clamping part of base, the second part of collapsible electronic equipment can be held to the second clamping part of movable seat to can drive the second part and bend relative first part, and the length variation of collapsible electronic equipment of adaptable has improved resistant performance test effect of bending.

Drawings

In order to more clearly illustrate the technical solutions of the examples of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a test fixture according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a test fixture according to another embodiment of the present application;

FIG. 3 is another schematic diagram of a test fixture according to an embodiment of the present disclosure;

FIG. 4 is an enlarged schematic view of a portion III of a test fixture according to an embodiment of the present disclosure;

FIG. 5 is an enlarged schematic view of the IV portion of the test fixture according to the embodiment of the present application;

FIG. 6 is another schematic diagram of a test fixture according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a testing fixture according to another embodiment of the present disclosure;

FIG. 8 is another schematic diagram of a test fixture according to an embodiment of the present disclosure;

fig. 9 is another schematic diagram of a test fixture according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without undue burden, are within the scope of the present application.

In the description of the embodiments of the present application, it should be understood that the azimuth or positional relationship indicated by the term "thickness" or the like is based on the azimuth or positional relationship shown in the drawings, and is merely for convenience of description of the present application and simplification of description, and does not imply or indicate that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application.

Referring to fig. 1, the present application provides a test fixture 100 for testing a foldable device 900, wherein the foldable device 900 includes a first portion 910 and a second portion 920 foldable with respect to the first portion 910. The test fixture 100 includes a base 10, a movable base 20 capable of turning over and sliding relative to the base 10, and a transmission link 30. One end of the transmission connecting rod 30 is rotatably connected with the base 10, and one end of the transmission connecting rod 30 away from the base 10 is slidably connected with the movable seat 20. The transmission link 30 may drive the movable base 20 to turn over and slide relative to the base 10. The base 10 is provided with a first clamping portion 11, and the first clamping portion 11 includes two first supporting components 111 that can slide relatively, and the two first supporting components 111 respectively support against two opposite edges of the first portion 910. The movable seat 20 is provided with a second clamping portion 21, the second clamping portion 21 includes two second supporting components 211 capable of sliding relatively, and the two second supporting components 211 respectively support against two opposite edges of the second portion 920, so that the movable seat 20 drives the second portion 920 to bend relative to the first portion 910. It is understood that the foldable device 900 may be a foldable cellular phone, a foldable tablet computer, or a foldable display screen, etc.

The base 10 can turn over and slide relative to the movable seat 20, the first clamping portion 11 of the base 10 can clamp the first portion 910 of the foldable device 900, and the second clamping portion 21 of the movable seat 20 can clamp the second portion 920 of the foldable device 900, so that the second portion 920 can be driven to bend relative to the first portion 910, and the length change of the foldable device 900 can be adapted, thereby improving the bending resistance performance test effect.

In this embodiment, the base 10 includes a bottom 12 and a top 13 disposed opposite the bottom 12. The first clamping portion 11 is disposed on the top portion 13. The movable seat 20 includes a back 22 and a front 23 disposed opposite the back 22. The second clamping portion 21 is provided at the front portion 23. By holding the bottom 12 of the base 10, a force is applied to the back 22 of the movable seat 20, which drives the movable seat 20 to flip relative to the base 10 and the front 23 to flip relative to the top 13, so that the foldable device 900 is folded or unfolded.

The movable seat 20 may rotate and slide relative to the base 10 through a rotating link structure, may rotate and slide relative to the base 10 through a transmission gear structure, and may also rotate and slide relative to the base 10 through a hinge structure.

The driving force for the movable seat 20 to rotate and slide relative to the base 10 may be provided by a motor, or may be provided manually by a handle, or may be provided by a pneumatic cylinder, or may be provided by a hydraulic cylinder.

The foldable device 900 further includes a shaft portion 930 coupled between the first portion 910 and the second portion 920. The first portion 910 and the second portion 920 are closed or opened to each other by the shaft portion 930. A movable space 101 exists between the movable seat 20 and the base 10, and the movable space 101 can accommodate the rotating shaft portion 930. When the movable seat 20 is closed relative to the base 10, the inner diameter of the rotating shaft portion 930 is reduced, the rotating shaft portion 930 moves toward the movable space 101, and the movable seat 20 approaches the base 10. When the movable base 20 is unfolded relative to the base 10, the inner diameter of the rotating shaft portion 930 increases, the rotating shaft portion 930 moves towards the movable space 101, and the movable base 20 is far away from the base 10.

The first portion 910 includes a first edge 911 and a second edge 912 disposed opposite the first edge 911. The second portion 920 comprises a third edge 921 and a fourth edge 922 arranged opposite the third edge 921. The first edge 911 and the third edge 921 are disposed on the same side of the foldable device 900. The second edge 912 and the fourth edge 922 are disposed on the same side of the foldable device 900.

The first clamping portion 11 forms a clamping structure, and the first clamping portion 11 abuts against the first edge 911 and the second edge 912. The second clamping portion 21 forms a clamping structure, and the second clamping portion 21 abuts against the third edge 921 and the fourth edge 922. The direction of the clamping force of the first clamping portion 11 to the first portion 910 is parallel to the direction of the clamping force of the second clamping portion 21 to the second portion 920, so as to prevent the foldable device 900 from generating torque deformation.

The first clamping portion 11 and the second clamping portion 21 respectively act on the side wall of the first portion 910 and the side wall of the second portion 920, so that the closing angle of the first portion 910 and the second portion 920 can be smaller to ensure the testing performance of the foldable device 900.

In this embodiment, the test fixture 100 further includes a driving bearing 40 fixed relative to the base 10. The drive bearing 40 is located on one side of the base 10, and is disposed substantially opposite the movable distance 101. The driving bearing 40 is provided with a driving shaft 41, and the driving shaft 41 is fixedly connected with one end of the transmission link 30, so as to drive the transmission link 30 to rotate relative to the base 10. The driving shaft 41 may receive a driving force of a driving motor to drive the transmission link 30 to rotate. The driving rotation shaft 41 is parallel to the rotation shaft portion 930 of the foldable device 900. One end of the transmission link 30, which is far away from the driving shaft 41, drives the movable base 20 to rotate relative to the base 10. When the transmission link 30 drives the movable base 20 to turn over relative to the base 10, the movable base 20 slides relative to the transmission link 30 to adapt to the inner diameter variation of the shaft portion 930.

In one embodiment, both the first supporting members 111 may be slidably disposed on the top 13. Both the second abutment members 211 may be slidably disposed on the front portion 23. The sliding direction of the second supporting component 211 is parallel to the sliding direction of the first supporting component 111.

The two first supporting members 111 respectively abut against the first edge 911 and the second edge 912. The two second supporting members 211 respectively abut against the third edge 921 and the fourth edge 922. The two first supporting components 111 and the two second supporting components 211 can slide relatively to adjust the distance between the two first supporting components 111 and the distance between the two second supporting components 211 so as to adapt to foldable devices 900 with different width scales.

By adjusting the positions of the two first supporting members 111 at the top 13 to adjust the position of the first portion 910 at the base 10, the base 10 is convenient for supporting the first portion 910 effectively. By adjusting the positions of the two second abutment assemblies 211 at the front portion 23, the position of the second portion 920 at the movable seat 20 is adjusted, so that the movable seat 20 effectively supports the second portion 920.

In another embodiment, referring to fig. 2, one of the first supporting members 111 is fixedly disposed on the top 13, and the other of the first supporting members 111 is slidably disposed on the top 13. One of the second supporting members 211 is fixedly disposed on the front portion 23, and the other of the second supporting members is slidably disposed on the front portion 23.

The first supporting component 111 fixed on the top 13 supports against the first edge 911, and the first supporting component 111 slidably disposed on the top 13 can support against the second edge 912. The second abutting element 211 fixed to the front portion 23 abuts against the third edge 921, and the second abutting element 211 slidably disposed on the front portion 23 may abut against the fourth edge 922. Of course, in other embodiments, the second abutting element 211 fixed to the front portion 23 may abut against the fourth edge 922, and the second abutting element 211 slidably provided to the front portion 23 may abut against the third edge 921.

Further, referring to fig. 3, 4 and 5, the first supporting component 111 includes a first supporting block 112 and a first latch 113 fixed to the first supporting block 112. The first supporting block 112 is slidably disposed on the base 10 and can be supported on the side portion of the first portion 910, and the first latch 113 can be inserted into the side portion of the first portion 910; the second supporting component 211 comprises a second supporting block 212 and a second bolt 213 fixed on the second supporting block 212. The second supporting block 212 is slidably disposed on the movable seat 20 and can support against a side portion of the second portion 920, and the second latch 213 can be inserted into the side portion of the second portion 920.

In this embodiment, the first supporting block 112 is provided with a first supporting base 1121, a first sliding guide boss 1122 provided at the bottom of the first supporting base 1121, and a first supporting boss 1123 provided at the end of the first supporting base 1121. The first supporting base 1121 covers the first sliding guide boss 1122. The first supporting base 1121 is slidably engaged with the end face of the top 13. The first guiding boss 1122 is matched with the sliding groove of the top 13. The first supporting boss 1123 may be attached to a side wall of the first portion 910. One end of the first latch 113 is inserted into the first supporting boss 1123, and the other end thereof is inserted into the sidewall of the first portion 910. The length direction of the first pin 113 is substantially parallel to the sliding direction of the first supporting block 112. The side walls of the first edge 911 and the side walls of the second edge 912 are respectively provided with a first insertion hole 913, and the first plug 113 can be inserted into the first insertion holes 913, so that the two first supporting components 111 clamp the first portion 910 more firmly.

In this embodiment, the second supporting block 212 is provided with a second supporting base 2121, a second sliding guide boss 2122 disposed at the bottom of the second supporting base 2121, and a second supporting boss 2123 disposed at the end of the second supporting base 2121. The second abutment base 2121 covers the second slide guide boss 2122. The second abutment base 2121 is slidably engaged with the end face of the front portion 23. The second guide boss 2122 is engaged with the slide groove of the front portion 23. The second abutment boss 2123 can abut the sidewall of the second portion 920. One end of the second latch 213 is inserted into the second supporting boss 2123, and the other end is inserted into the sidewall of the second portion 920. The length direction of the second pin 213 is substantially parallel to the sliding direction of the second holding block 212. The side walls of the third edge 921 and the side walls of the fourth edge 922 are respectively provided with a second insertion hole 923, and the second plug 213 can be inserted into the second insertion holes 923, so that the second portion 920 is more firmly clamped by the two second supporting components 211.

Further, the first supporting component 111 further includes a first locking member 114, where the first locking member 114 is connected to the base 10 and the first supporting block 112, so as to lock the first supporting block 112 to the base 10. The second supporting component 211 further includes a second locking member 214, where the second locking member 214 is connected to the movable seat 20 and the second supporting block 212, so as to lock the second supporting block 212 to the movable seat 20.

In this embodiment, the first supporting base 1121 is provided with a first locking platform 1124. The first locking member 114 passes through the first locking platform 1124 and through the first slide guide boss 1122. The first locking member 114 is a screw. The first locking member 114 is locked such that the first sliding guide boss 1122 is fixed to the top 13 of the base 10, so that the two first abutment members 111 cooperate to fix the first portion 910. By releasing the first locking member 114, the position of the first abutment block 112 on the base 10 can be adjusted. The second abutment base 2121 is provided with a second locking platform 2124. The second locking member 214 passes through the second locking platform 2124 and through the second slide guide boss 2122. The second locking member 214 is a screw. The second locking member 214 is locked such that the second slide guide boss 2122 is fixed to the top 13 of the base 10 such that the two second abutment members 211 cooperate to secure the second portion 920. By releasing the second locking member 214, the position of the second abutment block 212 on the movable seat 20 can be slidably adjusted.

In one embodiment, referring to fig. 4, 5 and 6, the base 10 is provided with a first chute 14, and a first flange 141 is disposed on an inner side wall of the first chute 14. The first supporting component 111 further includes a first clamping piece 115 slidably disposed in the first chute 14. The first locking member 114 is connected to the first clamping piece 115 and the first supporting block 112, so that the first clamping piece 115 and the first supporting block 112 can clamp the first flange 141. The first sliding guide boss 1122 is slidably disposed in the first sliding slot 14. The first clamping piece 115 is located at a side of the first sliding guide boss 1122 away from the first supporting base 1121. The first clamping piece 115 covers the first sliding guide boss 1122. By rotating the first locking member 114, the distance between the first clamping piece 115 and the first supporting base 1121 can be adjusted, so that the first clamping piece 115 and the first supporting base 1121 clamp the first flange 141, and the first supporting component 111 is fixed at the position of the base 10.

The first supporting component 111 further includes a first nut 116 screwed to one end of the first locking member 114. The first nut 116 abuts against the first clamping piece 115 to apply a locking clamping force to the first clamping piece 115. Of course, in other embodiments, the first retaining piece 115 and the first nut 116 may be replaced by a retaining block that is threadably connected to the first locking member 114.

The movable seat 20 is provided with a second chute 24, a second flange 241 is disposed on an inner side wall of the second chute 24, the second supporting component 211 further includes a second clamping piece 215 slidably disposed in the second chute 24, and the second locking piece 214 is connected to the second clamping piece 215 and the second supporting block 212, so that the second clamping piece 215 and the second supporting block 212 can clamp the second flange 241. The second sliding guide boss 2122 is slidably disposed in the second sliding groove 24. The second clamping piece 215 is located at a side of the second sliding guide boss 2122 away from the second supporting base 2121. The second catch 215 covers the second sliding guide boss 2122. By rotating the second locking member 214, the distance between the second clamping piece 215 and the second supporting base 2121 can be adjusted, so that the second clamping piece 215 and the second supporting base 2121 clamp the second flange 241, and the second supporting component 211 is fixed at the position of the movable seat 20.

The second supporting component 211 further includes a second nut 216 screwed to one end of the second locking member 214. The second nut 216 abuts against the second clamping piece 215, so as to apply a locking clamping force to the second clamping piece 215. Of course, in other embodiments, the second retaining piece 215 and the second nut 216 may be replaced by a retaining block that can be screwed to the second locking member 214.

In another embodiment, referring to fig. 7, unlike the embodiment shown in fig. 6, the first locking member 114 is a cam rotatably disposed on the first locking platform 1124. By rotating the first locking member 114, a portion of the first locking member 114 protrudes relative to the side wall of the first sliding guide boss 1122, and the first locking member 114 may tightly abut against the inner side wall of the first sliding groove 14, so as to limit the sliding of the first supporting block 112 relative to the base.

The second locking member 214 is a cam rotatably mounted to the second locking platform 2124. By rotating the second locking member 214, a portion of the second locking member 214 protrudes relative to the side wall of the second sliding guide boss 2122, and the second locking member 214 may tightly abut against the inner side wall of the second sliding groove 24, so as to limit the second abutting block 212 from sliding relative to the movable seat 20.

Further, with continued reference to fig. 3 and 6, the base 10 is provided with two first sliding grooves 14, and the two first sliding grooves 14 are disconnected. The movable seat 20 is provided with two second sliding grooves 24, and the two second sliding grooves 24 are disconnected.

In the present embodiment, the base 10 is provided with a first main body 15, and a first expansion portion 16 and a second expansion portion 17 provided on opposite sides of the first main body 15. The first expansion 16 and the second expansion 17 are arranged on the top 13 of the base 10. The two first sliding grooves 14 are respectively provided in the first expansion portion 16 and the second expansion portion 17. The two first supporting blocks 112 are respectively matched with the two first sliding grooves 14. The first body portion 15 is formed between the two first sliding grooves 14 to facilitate effective support of the first portion 910. The length of the first chute 14 provided in the first expansion portion 16 is smaller than the length of the first chute 14 provided in the second expansion portion 17. The thickness of the first main body 15 is greater than the thickness of the first expansion portion 16 and greater than the thickness of the second expansion portion 17, that is, the thickness of the portion of the base where the first sliding groove 14 is provided is smaller than the thickness of the portion between the two first sliding grooves 14, so as to reduce the volume of the base 10.

In the present embodiment, the movable seat 20 is provided with a second body portion 25, and a third expansion portion 26 and a fourth expansion portion 27 provided on opposite sides of the second body portion 25. The third expansion 26 and the fourth expansion 27 form two cams of the back 22 of the movable seat 20. The two second sliding grooves 24 are respectively provided in the third expansion portion 26 and the fourth expansion portion 27. The two second supporting blocks 212 are respectively matched with the two second sliding grooves 24. The second body portion 25 is formed between the two second sliding grooves 24 to facilitate effective support of the second portion 920. The length of the second chute 24 provided in the third expansion portion 26 is smaller than the length of the second chute 24 provided in the fourth expansion portion 27. The thickness of the second main body 25 is smaller than the thickness of the third expansion portion 26 and smaller than the thickness of the fourth expansion portion 27, that is, the thickness of the portion of the movable seat 20 where the second sliding grooves 24 are provided is smaller than the thickness of the portion between the two second sliding grooves 24, so as to reduce the weight of the movable seat 20.

Further, the base 10 is provided with two first clamping portions 11, and the two first clamping portions 11 are arranged side by side. The movable seat 20 is provided with two second clamping portions 21, and the two second clamping portions 21 are arranged side by side.

In this embodiment, the two first clamping portions 11 jointly clamp the first portion 910, so as to increase the stability of the base 10 and the first portion 910. Four first sliding grooves 14 are provided on the base 10. The two second clamping portions 21 jointly clamp the second portion 920 to increase the stability of the movable base 20 and the second portion 920. Of course, in other embodiments, three first clamping portions 11 may be disposed on the base 10 side by side, and the base 10 may also be disposed with three rows of first sliding grooves 14 side by side. The movable seat 20 may further be provided with three second clamping portions 21 side by side, and the movable seat 20 may also be provided with three rows of second sliding grooves 24 side by side.

In one embodiment, as shown in fig. 8 and 9, the test fixture 100 includes a support 50 fixedly connected to the transmission link 30, and the support 50 is slidably connected to the back of the movable seat 20. The bearing 50 is a bearing rod. The movable seat 20 is provided with a first connection boss 261 and a second connection boss 271 at the back of the third expansion portion 26 and the back of the fourth expansion portion 27, respectively. The first connection boss 261 is provided with a first sliding hole 262. The second connection boss 271 is provided with a second sliding hole 272. The first sliding hole 262 and the second sliding hole 272 are both elliptical raceways. The supporter 50 passes through the first sliding hole 262 and the second sliding hole 272. Both ends of the supporter 50 are respectively slidable in the first sliding hole 262 and the second sliding hole 272. As the support 50 is cylindrical. The support 50 may be rotatably engaged with the first sliding hole 262 and the second sliding hole 272, so that the movable seat 20 may rotate relative to the support 50, thereby reducing the stress applied to the second portion 920 by the movable seat 20.

Further, the base 10 is provided with a plurality of positioning holes 151 at the bottom of the first body 15, and positioning pins 152 may be disposed in the positioning holes 151. The positioning pins 152 are used for positioning and matching with the test machine, the processing machine or the experiment platform, so that the stability of the test fixture 100 is improved, and the test efficiency of the test fixture is improved.

The foregoing is a description of embodiments of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the embodiments of the present application, and these improvements and modifications are also considered as the protection scope of the present application.

Claims

1. The testing jig is characterized by comprising a base, a movable seat, a transmission connecting rod and a driving bearing, wherein the driving bearing is fixed relative to the base, one end of the transmission connecting rod is rotationally connected with the base, the other end of the transmission connecting rod is slidingly connected with the movable seat so as to drive the movable seat to overturn and slide relative to the base, the driving bearing is positioned on one side of the base, a driving rotating shaft of the driving bearing is fixedly connected with one end of the transmission connecting rod so as to drive the transmission connecting rod to rotate relative to the base, and one end of the transmission connecting rod away from the driving rotating shaft drives the movable seat to rotate relative to the base; the base is provided with a first clamping part, the first clamping part comprises two first propping components capable of sliding relatively, the two first propping components prop against two opposite edges of the first part respectively, the movable seat is provided with a second clamping part, the second clamping part comprises two second propping components capable of sliding relatively, the two second propping components prop against two opposite edges of the second part respectively, and the movable seat drives the second part to bend relatively to the first part.

2. The test fixture of claim 1, wherein the first holding assembly comprises a first holding block and a first latch fixed to the first holding block, the first holding block is slidably disposed on the base and can be held against a side portion of the first portion, and the first latch can be inserted into the side portion of the first portion; the second supporting component comprises a second supporting block and a second bolt fixed on the second supporting block, the second supporting block is arranged on the movable seat in a sliding mode and can be supported on the side portion of the second portion, and the second bolt can be inserted into the side portion of the second portion.

3. The test fixture of claim 2, wherein the first holding assembly further comprises a first locking member coupled to the base and the first holding block to lock the first holding block to the base; the second supporting component further comprises a second locking piece, and the second locking piece is connected with the movable seat and the second supporting block so as to lock the second supporting block on the movable seat.

4. The test fixture of claim 3, wherein the base is provided with a first chute, a first flange is arranged on an inner side wall of the first chute, the first supporting component further comprises a first clamping piece slidably arranged in the first chute, and the first locking piece is connected to the first clamping piece and the first supporting block, so that the first clamping piece and the first supporting block can clamp the first flange; the movable seat is provided with a second chute, the inner side wall of the second chute is provided with a second flange, the second supporting component further comprises a second clamping piece arranged in the second chute in a sliding manner, and the second locking piece is connected with the second clamping piece and the second supporting block so that the second clamping piece and the second supporting block can clamp the second flange.

5. The test fixture of claim 4, wherein the base is provided with two first sliding grooves, and the two first sliding grooves are disconnected; the movable seat is provided with two second sliding grooves, and the two second sliding grooves are disconnected.

6. The test fixture of claim 5, wherein the base is configured such that the thickness of the first chute portion is less than the thickness of the portion between the two first chutes.

7. The test fixture of claim 5, wherein the movable seat is configured such that a thickness of the second chute portion is less than a thickness of a portion between the two second chutes.

8. The test fixture of any one of claims 1-7, wherein the base is provided with two first clamping portions, the two first clamping portions being arranged side by side; the movable seat is provided with two second clamping parts, and the two second clamping parts are arranged side by side.

9. The test fixture of claim 1, further comprising a support fixedly coupled to one end of the drive link, the support slidably coupled to the back of the movable seat.

10. The test fixture of claim 9, wherein the support is a rotating shaft and the movable base is rotatable relative to the support.