Test fixing device

Abstract

The utility model provides a test fixing device, which comprises a fixing seat, two fixing plates are arranged on the fixing seat, a clamping space is formed between the two fixing plates, and a plurality of first mounting holes are uniformly arranged on the fixing plates; the locking structure is used for locking a to-be-tested workpiece on the fixed seat and comprises a plurality of clamping assemblies and a plurality of fastening assemblies; when the locking structure is in the first locking state, the two clamping assemblies cooperate with each other to clamp a to-be-tested workpiece. When the locking structure is in the second locking state, the fastening assembly is detachably connected with the first mounting hole and the workpiece to be tested. The test fixing device provided by the utility model can realize two locking modes of the workpiece to be tested, so that the workpiece to be tested can be tested in different directions, stable fixation of the workpiece to be tested can be met, the test accuracy can be improved, various types of workpieces to be tested can be locked, the compatibility is strong, the structure is simple, and the cost is relatively low.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, specifically to a testing fixture. Background Technology

[0002] A circuit board (PCB) is a type of circuit board that is manufactured with inserts that can be inserted into the slots of the computer's main circuit board (motherboard) to control the operation of hardware such as monitors and capture cards. After installing drivers, the corresponding hardware functions can be realized.

[0003] During the production of circuit boards, testing is required, such as insertion and removal tests, which necessitate securing the boards. Currently, two clamps are typically used to hold the sides of the board in place. However, due to variations in the mounting orientation of the electronic components being tested on the board, the testing orientation also needs to be adjusted accordingly. The method of clamping the sides of the board is ill-suited to different testing orientations, especially when the testing orientation is perpendicular to the surface of the board where the electronic components are mounted. In such cases, the force exerted by the testing equipment often causes the board to wobble or even deform. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the prior art and provide a testing fixture.

[0005] One embodiment of this utility model provides a test fixing device, comprising:

[0006] A fixing base is provided with two fixing plates, and a clamping space is formed between the two fixing plates. A plurality of first mounting holes are arranged on the fixing plates.

[0007] A locking structure, the locking structure comprising a clamping assembly and a fastening assembly;

[0008] The locking structure has a first locking state and a second locking state;

[0009] When the workpiece to be tested is at least partially located within the clamping space, the locking structure is in the first locking state, the clamping assembly is detachably connected to the first mounting holes on the two fixing plates, and the clamping assembly extends at least partially into the clamping space to clamp the workpiece to be tested from opposite sides.

[0010] When the workpiece to be tested is located outside the clamping space, the locking structure is in the second locking state, the fastening component is disposed on one of the fixing plates, and the fastening component is located on the side of the fixing plate away from the clamping space. The fastening component is detachably connected to the first mounting hole and the workpiece to be tested respectively.

[0011] In some alternative embodiments, the clamping assembly includes a plurality of first fasteners, which are respectively disposed on the two fixing plates;

[0012] The workpiece to be tested is at least partially located within the clamping space. When the locking structure is in the first locking state, the first fastener is locked in place with the first mounting hole, and the first fasteners on the two fixing plates cooperate to clamp the workpiece to be tested.

[0013] In some alternative embodiments, the first fastener is provided with a crimping member located within the clamping space, and the crimping members of the first fasteners on the two fixing plates cooperate to clamp the workpiece to be tested.

[0014] In some alternative embodiments, the fixing plate is provided with a plurality of first adjustment slots;

[0015] The locking structure also includes a plurality of first positioning elements;

[0016] In the first locking state, the two ends of the first positioning member are slidably engaged with the first adjustment grooves of the two fixed plates and are detachably assembled with the first adjustment grooves. A portion of the first positioning member passes through the connection hole of the workpiece to be tested.

[0017] In some alternative embodiments, one of the fixed plates is provided with a plurality of first adjustment slots;

[0018] The locking structure further includes several second positioning members, the ends of which are detachably provided with second fasteners;

[0019] In the second locking state, the second positioning member and the fastening assembly are arranged on the same fixing plate and located on the side of the fixing plate away from the clamping space. One end of the second positioning member is slidably engaged with the first adjusting groove and is detachably assembled with the first adjusting groove. The second fastener passes through the connecting hole of the workpiece to be tested and locks the workpiece to be tested onto the second positioning member.

[0020] In some alternative embodiments, the fixing plate is provided with a plurality of the first adjustment slots, at least one of the first adjustment slots extending along a first direction, at least one of the first adjustment slots extending along a second direction, wherein the first direction and the second direction are not parallel.

[0021] In some alternative embodiments, the fastening assembly includes an adapter, a plurality of third fasteners, and a plurality of fourth fasteners, the third fasteners and the fourth fasteners being disposed on the adapter;

[0022] In the second locking state, the adapter is arranged on the side of one of the fixing plates away from the clamping space. The third fastener engages with the first mounting hole to lock the adapter on the fixing plate. The fourth fastener passes through the connection hole of the workpiece to be tested and locks the workpiece to be tested onto the adapter.

[0023] In some optional embodiments, the adapter is provided with a first fixing hole and a support column that locks into the first fixing hole. The support column is located on the side of the adapter away from the fixing plate. The end of the support column is provided with a second fixing hole. The fourth fastener locks into the second fixing hole. When the locking structure is in the second locking state, the fourth fastener passes through the connection hole of the workpiece to be tested and locks the workpiece to be tested onto the support column.

[0024] In some alternative embodiments, the adapter is provided with a second adjustment groove, and the third fastener passes through the second adjustment groove and slides in conjunction with the second adjustment groove.

[0025] In some alternative embodiments, the mounting base and / or at least one of the mounting plates are provided with a plurality of second mounting holes and / or a plurality of strip mounting slots for assembly with the test equipment.

[0026] Compared with existing technologies, the test fixing device of this utility model can realize two locking methods for the workpiece under test, so that the workpiece under test can be tested in different directions while ensuring stable fixing, which is beneficial to improving the accuracy of the test. Moreover, it can lock various types of workpieces under test, has strong compatibility, simple overall structure, and low cost.

[0027] To provide a clearer understanding of this invention, the specific embodiments of the invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the test fixing device and the workpiece to be tested according to an embodiment of the present invention, when the locking structure is in the first locking state;

[0029] Figure 2 This is a schematic diagram of the test fixing device and the workpiece to be tested in the second locking state according to an embodiment of the present invention.

[0030] Figure 3 This is a schematic diagram of the test fixing device and another workpiece to be tested according to an embodiment of the present invention, when the locking structure is in the second locking state.

[0031] Figure 4This is an exploded view of the test fixing device according to an embodiment of the present invention when the locking structure is in the first locking state;

[0032] Figure 5 This is an exploded view of the test fixing device according to an embodiment of the present invention when the locking structure is in the second locking state;

[0033] Figure 6 This is an exploded view of a fastening assembly according to an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the workpiece to be tested, a portion of the testing equipment, and a testing fixing device in an embodiment of the present invention, when performing an insertion and removal durability test and the locking structure is in the first locking state.

[0035] Figure 8 This is a schematic diagram of the workpiece to be tested, a portion of the testing equipment, and a testing fixing device in an embodiment of the present invention, when performing an insertion and removal durability test and the locking structure is in the second locking state.

[0036] Figure 9 This is a schematic diagram of the workpiece to be tested, a portion of the testing equipment, and a testing fixing device according to an embodiment of the present invention, when performing an insertion and extraction force curve test and the locking structure is in the first locking state.

[0037] Figure 10 This is a schematic diagram of the workpiece to be tested, a portion of the testing equipment, and a testing fixing device according to an embodiment of the present invention, when the insertion and extraction force curve test is being performed and the locking structure is in the second locking state.

[0038] Figure 11 This is a schematic diagram of the workpiece to be tested, a portion of the testing equipment, and a testing fixing device according to an embodiment of the present invention, when performing a push-pull force test and the locking structure is in the first locking state.

[0039] Figure 12 This is a schematic diagram of the workpiece to be tested, a portion of the testing equipment, and the testing fixing device in a push-pull force test according to an embodiment of the present invention, and the locking structure is in the second locking state when the locking structure is in the second locking state.

[0040] Figure 13 This is a schematic diagram of another workpiece to be tested, a partial structure of the testing equipment, and a testing fixing device in a button durability test according to an embodiment of the present utility model, when the locking structure is in the first locking state.

[0041] Figure 14This is a schematic diagram of another workpiece to be tested, a partial structure of the testing equipment, and a testing fixing device in a second locking state when performing a button durability test, according to an embodiment of the present utility model.

[0042] Figure 15 This is a schematic diagram of another workpiece to be tested, a portion of the structure of the testing equipment, and the testing fixing device in a test according to an embodiment of the present utility model, when the key force curve test is being performed and the locking structure is in the first locking state.

[0043] Figure 16 This is a schematic diagram of another workpiece to be tested, a portion of the structure of the testing equipment, and the testing fixing device in one embodiment of the present invention, when performing a key force curve test and the locking structure is in the second locking state.

[0044] Explanation of reference numerals in the attached figures:

[0045] 10. Fixed base; 11. Fixed plate; 111. First mounting hole; 112. First adjustment groove; 12. Clamping space; 13. Second mounting hole; 14. Strip mounting groove; 20. Locking structure; 21. Clamping assembly; 211. First fastener; 212. Press-fit part; 22. Fastening assembly; 221. Adapter; 2211. First fixing hole; 2212. Support column; 2213. Second fixing hole; 2214. Second adjustment groove; 222. Third fastener; 223. Fourth fastener; 23. First positioning part; 231. Limiting cap; 232. First locking nut; 24. Second positioning part; 241. Second fastener; 30. Workpiece to be tested; 40. Testing equipment. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] In existing technologies, two clamps are typically used to hold the sides of the circuit board to fix it in place. However, due to the limited space on the sides of the circuit board, the clamps can only hold a limited area, leading to unstable clamping. Furthermore, since the clamps can only hold the sides of the circuit board, the board is prone to shaking during insertion and removal tests, affecting the test results, especially when the overall size of the circuit board is large. In addition, the different mounting orientations of the electronic components being tested on the circuit board necessitate corresponding changes in the test orientation. The method of clamping the sides of the circuit board is difficult to adapt to different test orientations, especially when the test orientation is perpendicular to the surface of the circuit board where the electronic components are mounted. The force exerted by the test equipment often causes the circuit board to shake or even deform.

[0051] The test fixing device of this utility model can select the appropriate locking method for the workpiece under test in different test directions, and can lock various types of workpieces under test. This ensures that the workpiece under test can be stably fixed while being tested in different directions, without shaking or deformation, which helps to improve the accuracy of the test. It has strong compatibility, simple overall structure, and low cost.

[0052] Please see Figure 1 One embodiment of this utility model provides a testing fixture, comprising:

[0053] A fixing base 10 is provided with two fixing plates 11, and a clamping space 12 is formed between the two fixing plates 11. A plurality of first mounting holes 111 are arranged on the fixing plates 11.

[0054] Locking structure 20, the locking structure 20 includes clamping component 21 and fastening component 22;

[0055] The locking structure 20 has a first locking state and a second locking state, which is intended to adapt to different testing directions of the workpiece 30 under test, so that the workpiece 30 under test can be locked onto the fixed seat 10 in a suitable and stable manner for different testing methods, so as to avoid shaking during the test and also to avoid deformation.

[0056] Please see Figure 1 When the test direction is approximately parallel to the side of the fixing plate 11, the workpiece 30 to be tested is at least partially arranged in the clamping space 12. The workpiece 30 to be tested is locked in the first locking state of the locking structure 20. In the first locking state, the clamping assembly 21 is detachably connected to the first mounting holes 111 on the two fixing plates 11. The clamping assembly 21 extends at least partially into the clamping space 12 to clamp the workpiece 30 to be tested from opposite sides. By pressing the clamping assembly 21 against the appropriate position of the workpiece 30 to be tested, the electronic components on the workpiece 30 to be tested can be avoided, preventing damage to the electronic components. Moreover, the clamping assembly 21 is not limited to clamping only the side of the workpiece 30 to be tested, which helps to improve the stability of clamping the workpiece 30 to be tested and prevents shaking and deformation.

[0057] Please see Figure 2When the test direction is approximately perpendicular to the side of the fixing plate 11, the workpiece 30 to be tested is positioned outside the clamping space 12. At this time, the workpiece 30 is locked in the second locking state of the locking structure 20. In this second locking state, the fastening component 22 is mounted on one of the fixing plates 11, located on the side of the fixing plate 11 away from the clamping space 12. The fastening component 22 is detachably connected to both the first mounting hole 111 and the workpiece 30 to be tested. The workpiece 30 typically has connecting holes for screws to pass through. The fastening component 22 can be detachably connected to these connecting holes, ensuring the workpiece 30 is stably and securely fastened to the fixing plate 11. This also avoids damaging electronic components on the workpiece 30, preventing the workpiece from being restricted to only the side of the workpiece 30. This improves the stability of the workpiece 30's fixation, preventing shaking and deformation.

[0058] Please see Figure 3 Of course, for other test directions, the workpiece 30 under test can also be locked using the first or second locking state of the locking structure 20 as needed. For example, when testing the rocker button on the workpiece 30, since the rocker button needs to rotate in multiple test directions, the workpiece 30 under test can be locked using the second locking state of the locking structure 20. The rocker button is positioned on the side of the workpiece 30 away from the fixing plate 11, so that the workpiece 30 under test can be stably locked and the structure of the test fixing device can be avoided from hindering the test.

[0059] Please see Figure 1 and Figure 4 The specific structure of the clamping assembly 21 can be selected according to the actual needs. For example, in some optional embodiments, the clamping assembly 21 includes a plurality of first fasteners 211, which are respectively disposed on two fixing plates 11, and each fixing plate 11 is provided with at least one first fastener 211. The workpiece 30 to be tested is at least partially located in the clamping space 12. When the locking structure 20 is in the first locking state, the first fasteners 211 are locked in place with the first mounting holes 111, and the first fasteners 211 on the two fixing plates 11 cooperate to clamp the workpiece 30 to be tested.

[0060] In some optional embodiments, a crimping member 212 is provided on the first fastener 211, and the crimping member 212 is located within the clamping space 12. The crimping members 212 of the first fastener 211 on the two fixing plates 11 cooperate to clamp the workpiece 30 to be tested. The crimping member 212 can adopt a structure adapted to the shape of the workpiece 30 to be tested, thereby better abutting against the workpiece 30 to be tested and reducing the friction between the first fastener 211 and the workpiece 30 to be tested. Moreover, the crimping member 212 can also be a flexible or elastic crimping member 212, thereby helping to avoid damage to the workpiece 30 to be tested while clamping it.

[0061] The first fastener 211 can be a screw, threaded rod or other threaded part, in which case the first fastener 211 mates with the first mounting hole 111. The first fastener 211 can also be a pin or other structure, in which case the first fastener 211 snaps into the first mounting hole 111. This example is not limited to this one.

[0062] The number of clamping components 21 and fastening components 22 can be selected appropriately according to actual needs, combined with the size and structure of the workpiece 30 to be tested, so as to meet the fastening requirements of the workpiece 30 to be tested. For example, the locking structure 20 may include multiple fastening components 22, which cooperate to lock the workpiece 30 to be tested.

[0063] Additionally, it should be noted that, in the first locked state, the fastening assembly 22 can be selectively removed from the fixing plate 11 or left on the fixing plate 11. Figure 5 The diagram shows the state with the fastening assembly 22 removed; similarly, in the second locking state, the clamping assembly 21 can also be selectively removed from the fixing plate 11 or left on the fixing plate 11. Figure 4 The image shows the state with the clamping assembly 21 removed.

[0064] Please see Figure 1 and Figure 4 Since the structures and dimensions of various workpieces 30 to be tested differ, in order to improve compatibility, in some optional embodiments, the fixing plate 11 is provided with a number of first adjustment grooves 112, and the locking structure 20 also includes a number of first positioning members 23. One end of the first positioning member 23 forms a limit cap 231, and the other end is detachably provided with a first locking nut 232.

[0065] In the first locked state, the locking structure 20 has two ends of the first positioning member 23 slidingly engaged with the first adjustment grooves 112 of the two fixing plates 11, and is detachably assembled with the first adjustment grooves 112. A portion of the first positioning member 23 passes through the connection hole of the workpiece 30 to be tested. Since the positions of the connection holes on different workpieces 30 to be tested vary, the position of the first positioning member 23 is adjusted along the first adjustment groove 112 to accommodate passing through the connection holes on different workpieces 30 to be tested. After the position of the first positioning member 23 is adjusted, the first locking nut 232 and the limiting cap 231 press against the side of the two fixing plates 11 away from the clamping space 12 to limit the position of the first positioning member 23 relative to the first adjustment groove 112, thereby locking the first positioning member 23. Alternatively, the first positioning member 23 can also be detachably assembled with the first adjustment groove 112 in other ways, such as an interference fit or a snap-fit ​​fit.

[0066] The first positioning component 23 and the clamping component 21 work together to fix the workpiece 30 to be tested on the fixing plate 11. This also prevents the workpiece 30 to be tested from rotating relative to the clamping component 21 when it is pressed against the workpiece 30, thus achieving the positioning function.

[0067] Of course, the first positioning element 23 can also be connected to the first mounting hole 111, or to the first adjustment groove 112, or the first positioning element 23 can be omitted. The specific choice depends on the structure and size of the workpiece 30 to be measured.

[0068] Please see Figure 2 and Figure 5 Since the structure and size of various workpieces 30 to be tested differ, in order to improve compatibility, in some optional embodiments, at least one fixing plate 11 is provided with a plurality of first adjustment grooves 112. In this embodiment, both fixing plates 11 are provided with a plurality of first adjustment grooves 112, which can improve the versatility of the two fixing plates 11.

[0069] The locking structure 20 also includes several second positioning members 24, each with a second fastener 241 detachably mounted at its end. In the second locked state, the second positioning members 24 and the fastening assembly 22 are arranged on the same fixed plate 11, located on the side of the fixed plate 11 away from the clamping space 12. One end of the second positioning member 24 slides into the first adjusting groove 112 and is detachably assembled with it. Since the positions of the connecting holes on different workpieces 30 to be tested vary, the second positioning member 24 is positioned appropriately according to the position of the connecting holes on the workpiece 30 to be tested, and is press-fitted with the first adjusting groove 112 to accommodate the connecting holes on different workpieces 30 to be tested. After the position of the second positioning member 24 is adjusted, the second fastener 241 passes through the connecting hole of the workpiece 30 to be tested and locks the workpiece 30 to be tested onto the second positioning member 24, thereby achieving the purpose of fixing the workpiece 30 to be tested onto the fixed plate 11 with the fastening assembly 22.

[0070] One end of the second positioning member 24 can be detachably assembled with the first adjustment groove 112 by means of interference fit. Of course, the second positioning member 24 can also be detachably assembled with the first adjustment groove 112 in other suitable ways. For example, the end of the second positioning member 24 can be detachably provided with a second locking nut. The second locking nut presses against the side of the fixing plate 11 facing the clamping space 12 to limit the position of the second positioning member 24 relative to the first adjustment groove 112.

[0071] The second positioning component 24 can work with the fastening component 22 to fix the workpiece 30 to be tested, while also preventing the workpiece 30 to be tested from rotating relative to the fastening component 22, thereby playing a positioning role.

[0072] The second positioning element 24 can be connected to the first mounting hole 111 or the first adjustment groove 112, or it can be omitted. The specific choice depends on the structure and size of the workpiece 30 to be measured.

[0073] The second fastener 241 can be threadedly engaged with the second positioning member 24. For example, the second positioning member 24 may have an internal threaded hole, and the second fastener 241 may be threadedly engaged with the internal threaded hole. Alternatively, a screw may be provided on the second fastener 241, and the second fastener 241 may be fastened by the screw engaging with the internal threaded hole. Of course, the second fastener 241 can also be snapped or latched with the second positioning member 24.

[0074] The number of the first positioning component 23 and the second positioning component 24 can be selected according to actual needs, taking into account the size and structure of the workpiece 30 to be tested, so as to meet the fastening requirements of the workpiece 30 to be tested.

[0075] In some optional embodiments, the fixing plate 11 is provided with a plurality of first adjustment grooves 112, at least one first adjustment groove 112 extending along a first direction and at least one first adjustment groove 112 extending along a second direction, wherein the first direction and the second direction are not parallel. The first adjustment grooves 112 in different directions facilitate the position adjustment of the first positioning member 23 or the second positioning member 24 in different directions, thereby adapting to the connection holes at different positions on the workpiece 30 to be tested; in this embodiment, the first direction and the second direction are perpendicular to each other.

[0076] Please see Figure 2 , Figure 5 and Figure 6 The specific structure of the fastening assembly 22 can be selected according to actual needs. In some optional embodiments, the fastening assembly 22 includes an adapter 221, a plurality of third fasteners 222 and a plurality of fourth fasteners 223, with the third fasteners 222 and fourth fasteners 223 disposed on the adapter 221. The adapter 221 can separate the workpiece 30 under test and the fixing plate 11 by a certain distance, preventing the electronic components on the workpiece 30 under test from colliding with the fixing plate 11.

[0077] In the second locking state, the adapter 221 is arranged on the side of one of the fixing plates 11 away from the clamping space 12. The third fastener 222 is locked with the first mounting hole 111 to lock the adapter 221 onto the fixing plate 11. The fourth fastener 223 passes through the connection hole of the workpiece 30 to be tested and locks the workpiece 30 onto the adapter 221, thereby locking the workpiece 30 onto the fixing plate 11.

[0078] Please see Figure 2 , Figure 5 and Figure 6 In some optional embodiments, the adapter 221 is provided with a first fixing hole 2211 and a support column 2212 that locks into the first fixing hole 2211. The support column 2212 is located on the side of the adapter 221 away from the fixing plate 11. A second fixing hole 2213 is provided at the end of the support column 2212. A fourth fastener 223 locks into the second fixing hole 2213. When the locking structure 20 is in the second locking state, the fourth fastener 223 passes through the connection hole of the workpiece 30 to be tested and locks the workpiece 30 to be tested onto the support column 2212. The support column 2212 can keep a certain distance between the workpiece 30 to be tested and the fixing plate 11, preventing the electronic components on the workpiece 30 to be tested from colliding with the fixing plate 11.

[0079] The support column 2212 can be locked into the first fixing hole 2211 by means of interference fit, snap fit, or threaded fit. The fourth fastener 223 can be locked into the second fixing hole 2213 by means of interference fit, snap fit, or threaded fit.

[0080] Since the positions of the connecting holes on different workpieces 30 to be tested vary, in order to ensure that the fourth fastener 223 can be accurately assembled with the connecting holes on the workpiece 30 to be tested, in some optional embodiments, the adapter 221 is provided with a second adjustment groove 2214, and the third fastener 222 passes through the second adjustment groove 2214. The third fastener 222 is slidably engaged with the second adjustment groove 2214 and rotatably engaged with the second adjustment groove 2214. Before the third fastener 222 locks the adapter 221 onto the fixing plate 11, the design of the second adjustment groove 2214 allows the adapter 221 to slide relative to the third fastener 222, thereby adjusting the position of the fourth fastener 223 and improving compatibility. In addition, the adapter 221 can also rotate relative to the third fastener 222 to adjust the position of the fourth fastener 223 to match the position of the connecting hole on the workpiece 30 to be tested.

[0081] The third fastener 222 can be a threaded part such as a screw or threaded rod, in which case the third fastener 222 mates with the first mounting hole 111. The third fastener 222 can also be a structure such as a pin, in which case the third fastener 222 snaps into the first mounting hole 111. This example is not limited to this one.

[0082] Please see Figures 7 to 16 The testing and fixing device of this utility model can be used for testing operations such as insertion and extraction durability testing, insertion and extraction force curve testing, push-pull force testing, button durability or button curve testing of the workpiece 30 under test. The workpiece 30 under test can be a circuit board with an electronic device under test, such as a connector, button, or key. Of course, depending on the workpiece 30 under test, the testing direction is not limited to that shown in the figure. Those skilled in the art can adjust the locking method of the workpiece 30 under test according to the actual required testing direction. Specifically, for... Figures 13 to 16 If the workpiece 30 to be tested is a joystick-type button, the test direction needs to be designed according to the direction in which the joystick-type button can swing, and is not limited to the test direction shown in the figure.

[0083] It should be noted that insertion / removal durability testing typically involves recording the number of insertions and removals, as well as the product's deformation and wear, to analyze the durability of the workpiece 30 under test. Insertion / removal force curve testing typically involves recording the curve of the insertion / removal force over time, to analyze the mechanical properties of the workpiece 30 during the insertion / removal process. Push-pull force testing involves recording the push-pull force values ​​and test curves, to analyze the mechanical strength and connection reliability of the workpiece 30 under test. Of course, the specific testing methods and principles of insertion / removal durability testing, insertion / removal force curve testing, or push-pull force testing are well-known to those skilled in the art and will not be elaborated upon here. Button durability testing typically involves recording the number of button triggers, as well as the product's deformation and wear, to analyze the durability of the workpiece 30 under test. Button curve testing typically involves recording the curve of the pressing force over time, to analyze the mechanical properties of the workpiece 30 under test during the pressing process. Please refer to [link to relevant documentation]. Figure 3 , Figure 4 , Figures 7 to 16To facilitate the mounting of the mounting base 10 in different orientations onto various testing devices 40, in some optional embodiments, the mounting base 10 and / or at least one mounting plate 11 are provided with a plurality of second mounting holes 13 and / or a plurality of strip-shaped mounting grooves 14 for mounting with the testing device 40. Mounting screws can pass through the second mounting holes 13 or strip-shaped mounting grooves 14 and then connect to the testing device 40, thereby fixing the mounting base 10 or the mounting plate 11. The strip-shaped mounting grooves 14 are slidably engaged with the mounting screws, allowing the mounting base 10 to slide relative to the mounting screws to adjust its position before the mounting base 10 or the mounting plate 11 is locked by the mounting screws. Alternatively, when the mounting plate 11 is provided with a first adjustment groove 112, the first adjustment groove 112 has a similar structure to the strip-shaped mounting groove 14, and the mounting screws can also be mounted with the first adjustment groove 112, thus eliminating the need to design a separate strip-shaped mounting groove 14 on the mounting plate 11. In this embodiment, both the fixed base 10 and one of the fixed plates 11 are provided with second mounting holes 13, and the fixed base 10 is provided with a strip-shaped mounting groove 14. Of course, depending on the requirements of the test direction and the different test operations, the fixed base 10 can also adopt other assembly methods. For example, a screw can pass through the first mounting hole 111 or the first adjustment groove 112 on one of the fixed plates 11, and then the screw is connected to the test equipment 40, so that the fixed plate 11 is fixed to the test equipment 40, thus achieving overall fixation of the fixed base 10; or, the test equipment 40 can press against the two fixed plates 11 respectively using two clamping plates, thereby completing the overall fixation of the fixed base 10; or, the test equipment can clamp the two fixed plates 11 on the side away from the fixed base 10 and the fixed base 10 on the side away from the fixed plates 11 respectively, thereby completing the overall fixation of the fixed base 10, and this is not limited to these examples. Furthermore, installation is not limited to using mounting screws; structures such as pins can also be used to install the fixed plate 11 or the fixed base 10.

[0084] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing fixture, characterized in that, include: A fixing base, wherein two fixing plates are provided on the fixing base, a clamping space is formed between the two fixing plates, and a plurality of first mounting holes are arranged on the fixing plates; A locking structure, the locking structure comprising a clamping assembly and a fastening assembly; The locking structure has a first locking state and a second locking state; When the workpiece to be tested is at least partially located within the clamping space, the locking structure is in the first locking state, the clamping assembly is detachably connected to the first mounting holes on the two fixing plates, and the clamping assembly extends at least partially into the clamping space to clamp the workpiece to be tested from opposite sides. When the workpiece to be tested is located outside the clamping space, the locking structure is in the second locking state, the fastening component is disposed on one of the fixing plates, and the fastening component is located on the side of the fixing plate away from the clamping space. The fastening component is detachably connected to the first mounting hole and the workpiece to be tested respectively.

2. The testing fixture according to claim 1, characterized in that: The clamping assembly includes a plurality of first fasteners, which are respectively disposed on the two fixing plates; The workpiece to be tested is at least partially located within the clamping space. When the locking structure is in the first locking state, the first fastener is locked in place with the first mounting hole, and the first fasteners on the two fixing plates cooperate to clamp the workpiece to be tested.

3. The testing fixture according to claim 2, characterized in that: The first fastener is provided with a crimping member, which is located within the clamping space. The crimping members of the first fastener on the two fixed plates cooperate to clamp the workpiece to be tested.

4. The testing fixture according to claim 1, characterized in that: The fixing plate is provided with a plurality of first adjustment grooves; The locking structure also includes a plurality of first positioning elements; In the first locking state, the two ends of the first positioning member are slidably engaged with the first adjustment grooves of the two fixed plates and are detachably assembled with the first adjustment grooves. A portion of the first positioning member passes through the connection hole of the workpiece to be tested.

5. A testing fixture according to claim 1, characterized in that: At least one of the fixed plates is provided with a plurality of first adjustment slots; The locking structure further includes a plurality of second positioning members, the ends of which are detachably provided with second fasteners; In the second locking state, the second positioning member and the fastening assembly are arranged on the same fixing plate and located on the side of the fixing plate away from the clamping space. One end of the second positioning member is slidably engaged with the first adjusting groove and is detachably assembled with the first adjusting groove. The second fastener passes through the connecting hole of the workpiece to be tested and locks the workpiece to be tested onto the second positioning member.

6. A testing fixture according to claim 4 or 5, characterized in that: The fixing plate is provided with a plurality of first adjustment slots, at least one of the first adjustment slots extends along a first direction, and at least one of the first adjustment slots extends along a second direction, wherein the first direction and the second direction are not parallel.

7. A testing fixture according to any one of claims 1 to 5, characterized in that: The fastening assembly includes an adapter, a plurality of third fasteners and a plurality of fourth fasteners, wherein the third fasteners and the fourth fasteners are disposed on the adapter; In the second locking state, the adapter is arranged on the side of one of the fixing plates away from the clamping space. The third fastener engages with the first mounting hole to lock the adapter on the fixing plate. The fourth fastener passes through the connection hole of the workpiece to be tested and locks the workpiece to be tested onto the adapter.

8. A testing fixture according to claim 7, characterized in that: The adapter is provided with a first fixing hole and a support column that locks into the first fixing hole. The support column is located on the side of the adapter away from the fixing plate. The end of the support column is provided with a second fixing hole. The fourth fastener locks into the second fixing hole. When the locking structure is in the second locking state, the fourth fastener passes through the connection hole of the workpiece to be tested and locks the workpiece to be tested onto the support column.

9. A testing fixture according to claim 7, characterized in that: The adapter is provided with a second adjustment groove, and the third fastener passes through the second adjustment groove and slides in cooperation with the second adjustment groove.

10. A testing fixture according to any one of claims 1 to 5, characterized in that: The mounting base and / or at least one of the mounting plates are provided with a plurality of second mounting holes and / or a plurality of strip-shaped mounting slots for assembly with the test equipment.

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