Test fixture and test device

Abstract

The utility model relates to a test fixture and a test device. The testing device comprises a testing jig, the testing jig comprises a main body and a crimping part, the main body comprises a supporting assembly and a limiting assembly, the limiting assembly is provided with a limiting groove, the crimping part is movably connected to the supporting assembly, the crimping part can move relative to the supporting assembly to be close to or away from the supporting assembly, and the crimping part is provided with a first inserting part; the first plugging part is used for plugging with a connector of a to-be-tested product when the crimping part is close to the supporting assembly so as to realize conduction between the crimping part and the to-be-tested product, so that one part of the to-be-tested product can be limited in the limiting groove, and the other part of the to-be-tested product can be mutually conducted with the crimping part so as to realize performance testing on the testing device. Therefore, the to-be-tested product with a specific shape can be well positioned, crimped, conducted and tested, and the test precision and the test efficiency are improved.

Description

Technical Field

[0001] This application relates to the technical field of product testing tooling, and particularly to a testing fixture and a testing device. Background Art

[0002] With the development of technology, 3C products (i.e., products in the three fields of computer, communication, and consumer electronics) are constantly iterating and updating. Their manufacturing processes are becoming more complex, their structural designs are tending to be precise, and their functions are also more comprehensive. In view of this, ensuring the performance and quality of products is a crucial link in the production process of 3C products. Usually, before leaving the factory, it is necessary to test various performance parameters of the product. Generally, the connector of the product to be tested is crimped with the connector of the testing device to make the product to be tested conductive, so that the information fed back by the product to be tested can be received to confirm whether there are any defects in the product to be tested.

[0003] In the prior art, when crimping and conducting a product for performance testing, it is usually necessary to use a testing fixture to fix the product to be tested to avoid unnecessary displacement of the product to be tested during crimping, so as to ensure the accuracy of the test results. However, due to the diverse appearance of electronic products, especially in some cases, when testing products with specific shapes, it is usually not possible to position the product to be tested well, resulting in a decrease in test accuracy and test efficiency, which does not meet the requirements of modern production. Summary of the Utility Model

[0004] Based on this, the purpose of this application is to provide a testing fixture and a testing device including the testing fixture to solve the problem that when using the existing testing fixture to test products with specific shapes, it is usually not possible to position the product to be tested well, resulting in a decrease in test accuracy and test efficiency.

[0005] According to one aspect of this application, a testing fixture is provided, including:

[0006] A main body, the main body includes a support component and a limiting component, the limiting component has a limiting groove, and the limiting groove is used for limiting the product to be tested;

[0007] A crimping member, movably connected to the support component, the crimping member can move relative to the support component to approach or move away from the support component. A first insertion portion is provided on the crimping member, and the first insertion portion is used for inserting into the connector of the product to be tested when the crimping member approaches the support component, so as to realize the conduction between the crimping member and the product to be tested when the first insertion portion is conducted with an external power source.

[0008] In one embodiment, the limiting component includes a fixed seat and a cover plate rotatably connected to the fixed seat. The fixed seat has a first surface, and the cover plate has a second surface. The cover plate can rotate relative to the fixed seat about an axis extending in a first horizontal direction, so that the first surface and the second surface can be oppositely arranged in a second horizontal direction perpendicular to the first horizontal direction and jointly form the limiting groove.

[0009] In one embodiment, a first hook is provided on the fixed seat. The first hook can move relative to the fixed seat and be clamped to the cover plate when the limiting groove is formed between the cover plate and the fixed seat.

[0010] And / or, a positioning pin is provided on the fixed seat. The positioning pin is used to be inserted into the cover plate when the limiting groove is formed between the cover plate and the fixed seat.

[0011] In one embodiment, the main body further includes a base. A second plugging portion electrically connected to the first plugging portion through a wire is provided on the base. The second plugging portion is used to connect to an external power supply.

[0012] In one embodiment, the supporting component includes a support frame and a positioning frame connected to the support frame. The pressing member is movably connected to the positioning frame. The installation angle of the positioning frame relative to the support frame can be adjusted, so that the angle of the pressing member relative to the horizontal plane can also be adjusted.

[0013] In one embodiment, a first limiting plate is provided on the supporting component. A second limiting plate parallel to the first limiting plate is provided on the pressing member. The first limiting plate is used to abut against the second limiting plate to limit the displacement of the pressing member when the pressing member moves away from the supporting component.

[0014] In one embodiment, a second hook is provided on the supporting component. The second hook can move relative to the supporting component and be clamped to the pressing member when the first plugging portion is plugged into the connector of the product to be tested.

[0015] In one embodiment, the pressing member and the supporting component are further connected to each other through an elastic element. The elastic element is configured to provide an elastic force for moving the pressing member away from the supporting component and resetting when the second hook disengages from the pressing member and the first plugging portion disengages from the connector of the product to be tested.

[0016] In one embodiment, the first plugging portion is movably disposed on the crimping member, and / or the first plugging portion has a plugging groove, and a chamfer is formed on the inner peripheral edge of the plugging groove, and the chamfer is configured to provide guidance to the connector of the product under test when the connector of the product under test is plugged into the first plugging portion.

[0017] According to another aspect of the present application, there is provided a testing device including the testing fixture as described in any one of the above solutions.

[0018] For the above-mentioned testing fixture, by providing a support assembly and a limiting assembly on the main body, and providing a limiting groove on the limiting assembly, and movably disposing a crimping member on the support assembly, a part of the product under test can be limited in the limiting groove, and the other part can be electrically connected to the crimping member to perform a performance test on the testing device, so that when the shape of the product under test is the shape of a specific product, for example, when the product under test is a product including a motor and an output portion, the limiting assembly of the testing fixture can limit the motor, and the crimping portion can be crimped on the circuit board, so that the product under test can be well positioned, and the testing accuracy and testing efficiency are improved. Description of the Drawings

[0019] Figure 1 Isometric view of the testing fixture provided by an embodiment of the present application (without the product under test fixed).

[0020] Figure 2 Isometric view of the product under test in an embodiment of the present application.

[0021] Figure 3 Isometric view of the testing fixture provided by an embodiment of the present application Figure 1 (with the product under test fixed).

[0022] Figure 4 Isometric view of the testing fixture provided by an embodiment of the present application Figure 2 (with the product under test fixed).

[0023] Figure 5 Is Figure 3 Enlarged schematic view of area A in

[0024] Figure 6 Cross-sectional view of the connector of the product under test plugged into the second first plugging portion.

[0025] Description of the Reference Numerals:

[0026] 100, Main body; 110, Base; 120, Support assembly; 121, Support frame; 122, Positioning frame; 1221, First limiting plate; 123, Second hook; 124, Elastic element; 130, Limiting assembly; 130a, Limiting groove; 131, Fixed seat; 131a, First surface; 132, Cover plate; 132a, Second surface; 133, First hook; 134, Positioning pin; 135, Support block; 136, Limiting block; 200, Crimping part; 201, First insertion part; 201a, Insertion groove; 201b, First pin; 201c, Second pin; 201d, Chamfer; 202, Second limiting plate; 30, Product to be tested; 31, Driving element; 32, Output part; 33, Circuit board; 34, Connector. Detailed implementation manner

[0027] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manner of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0029] In addition, if these terms "first" and "second" appear, these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In this application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0033] This application provides a test fixture and a test device, wherein the test device includes the test fixture. The test device is used to test various performance parameters (such as mechanical properties, acoustic properties, etc.) of the product to be tested. The test fixture is used to fix the product to be tested and press-connect and conduct when the product to be tested is being tested, so that the positioning and press-connection and conduction of the product to be tested can be realized with a simple structure and convenient operation, so as to complete the test of various performance parameters of the product to be tested.

[0034] The following uses the product to be tested as a product component applied to AR (Augmented Reality) and VR (Virtual Reality) as an example to illustrate the structure of the test fixture in this application. It is understandable that in other embodiments, the test fixture of this application is not limited to positioning and crimping tests on the above-mentioned product components applied to AR and VR, but can also be used to position and crimp any product, without limitation here.

[0035] A test device (not shown in the figure) provided in an embodiment of the present application includes a test body, a control module and Figure 1 The test fixture shown in the figure has a test body with a plug-in position connected to the control module. The test fixture is pluggable and connected to the plug-in position of the test body. It is used to fix the product to be tested and to be crimped and connected with the product to be tested so as to be able to test various performance parameters of the product to be tested.

[0036] like Figure 2 As shown, it is a product component used for AR and VR mentioned above, which is the product to be tested 30, including a driving element 31, a circuit board 33 and an output part 32, wherein the driving element 31 is a micro motor, the circuit board 33 is electrically connected to the driving element 31, and the output part 32 is transmission-connected to the driving element 31. When the circuit board 33 of the product to be tested 30 is electrically conductive, the driving element 31 can be energized and drive the output part 32 to perform linear reciprocating motion. When testing the product to be tested 30, since the driving element 31 is usually a micro motor, it is necessary to fix the above-mentioned product to be tested 30 and press-connect it to detect the push-pull force of the above-mentioned driving element 31 driving the output part 32 to perform linear reciprocating motion or detect the noise generated by the above-mentioned driving element 31 driving the output part 32 to perform linear reciprocating motion.

[0037] See also Figure 1 , Figure 3 and Figure 4, a test fixture provided by an embodiment of the present application includes a main body 100 and a crimping member 200. The main body 100 includes a base 110, a support assembly 120, and a limiting assembly 130. The base 110 is pluggably inserted into the insertion position of the test body. The support assembly 120 and the limiting assembly 130 are arranged adjacent to each other. The limiting assembly 130 has a limiting groove 130a for limiting the driving element 31 of the product 30 to be tested. The crimping member 200 is movably connected to the support assembly 120 and can move relative to the support assembly 120 to approach or move away from the support assembly 120. The crimping member 200 has a first insertion portion 201 for inserting into the connector 34 of the product 30 to be tested when the crimping member 200 approaches the support assembly 120, so as to achieve conduction between the crimping member 200 and the product 30 to be tested when the first insertion portion 201 is electrically connected to an external power source. Further, a second insertion portion (not shown in the figure) electrically connected to the first insertion portion 201 through a wire harness is provided on the base 110. The second insertion portion is used to connect to an external power source, that is, for inserting into the insertion position of the test body. When the test fixture is inserted into the insertion position of the test body, the insertion position serves as an external power source and can be conducted with the second insertion portion, so that the second insertion portion is conducted with the first insertion portion 201, and further the first insertion portion 201 is electrically conducted with the circuit board 33 of the product 30 to be tested. At the same time, the insertion position can also be conducted with the control module to achieve signal conduction between the control module and the product 30 to be tested, so that the driving element 31 of the product 30 to be tested can drive the output portion 32 to perform reciprocating motion.

[0038] In a specific embodiment, the width of the limiting groove 130a is slightly larger than the thickness of the driving element 31 of the product 30 to be tested, so that the driving element 31 of the product 30 to be tested can be received in the limiting groove 130a and the degree of freedom in the second horizontal direction (i.e., the Y direction shown in the figure) can be restricted. More specifically, the limiting assembly 130 includes a fixed seat 131 and a cover plate 132 rotatably connected to the fixed seat 131. The fixed seat 131 has a first surface 131a, and the cover plate 132 has a second surface 132a. The cover plate 132 can rotate relative to the fixed seat 131 around an axis extending in a first horizontal direction (i.e., the X direction shown in the figure) perpendicular to the second horizontal direction, so that the first surface 131a and the second surface 132a can be oppositely arranged in the second horizontal direction and jointly form the limiting groove 130a.

[0039] Further, in order to prevent the cover plate 132 from moving relative to the fixed seat 131 when forming the limiting groove 130a, so that the driving element 31 of the product 30 to be tested can be stably limited in the limiting groove 130a, a first hook 133 is provided on the fixed seat 131. The first hook 133 can move relative to the fixed seat 131 and is clamped to the cover plate 132 when the cover plate 132 and the fixed seat 131 form the limiting groove 130a. And a positioning pin 134 is provided on the fixed seat 131. The positioning pin 134 is used to be inserted into the cover plate 132 when the cover plate 132 and the fixed seat 131 form the limiting groove 130a, so as to further limit the degrees of freedom of the driving element 31 of the product 30 to be tested in the first horizontal direction and the vertical direction (i.e., the Z direction shown in the figure).

[0040] Furthermore, a support block 135 and a limiting block 136 are provided on the fixed seat 131. The support block 135 and the limiting block 136 are used to guide the product 30 to be tested before the cover plate 132 and the fixed seat 131 form the limiting groove 130a, so that the driving element 31 of the product 30 to be tested can be quickly placed on the test fixture, and can perform preliminary positioning on the driving element 31 before the cover plate 132 and the fixed seat 131 form the limiting groove 130a. After the fixed seat 131 and the cover plate 132 form the limiting groove 130a, it can further limit the displacement of the product 30 to be tested in the vertical direction and the first horizontal direction respectively.

[0041] It can be understood that only one or more of the first hook 133, the positioning pin 134, the support block 135 and the limiting block 136 can be provided on the fixed seat 131, but obviously all are set as the best embodiments.

[0042] In this way, by designing the limiting component 130 as the above structure, the product 30 to be tested can be placed on the fixed seat 131 by using the support block 135 and the limiting block 136 for guiding, then the cover plate 132 is covered, the positioning pin 134 is inserted into the cover plate 132, and then the first hook 133 is clamped to the cover plate 132, so that the quick clamping of the product 30 to be tested can be completed. It can not only fix the product 30 to be tested well, but also is simple and convenient to operate, and improves the clamping efficiency of the product 30 to be tested.

[0043] Please continue to refer to Figure 1 、 Figure 3 and Figure 4, in the structure of the support component 120, the support component 120 includes a support frame 121 and a positioning frame 122 connected to the support frame 121 by screws. The crimping member 200 is movably connected to the positioning frame 122. However, as shown in the figure, based on the structural shape of the product 30 to be tested, the circuit board 33 is inclined with respect to the horizontal plane. Therefore, the positioning frame 122 also has a certain installation angle relative to the support frame 121, so that the crimping portion also has the same inclination angle with respect to the horizontal plane as the circuit board 33 with respect to the horizontal plane.

[0044] Of course, in other embodiments, the angle between the crimping member 200 and the horizontal plane can also be adjusted accordingly according to the angle between the circuit board 33 and the horizontal plane in different products 30 to be tested. That is, the installation angle of the positioning frame 122 on the support frame 121 can be adjusted so that the angle between the crimping member 200 and the horizontal plane can also be adjusted. Specifically, the installation angle of the positioning frame 122 on the support frame 121 can be adjusted by loosening the screws, and then the screws can be tightened, so as to adjust the angle between the crimping member 200 and the horizontal plane.

[0045] Preferably, in order to enable the first insertion portion 201 provided on the crimping member 200 to be more firmly inserted into the connector 34 of the product 30 to be tested and avoid poor contact, a second hook 123 is further provided on the support component 120. The second hook 123 can move relative to the support component 120 to be clamped to the crimping member 200 when the first insertion portion 201 is inserted into the connector 34 of the product 30 to be tested, so as to be able to fix the crimping member 200 and prevent the first insertion portion 201 on the crimping member 200 from accidentally detaching from the connector 34 of the product 30 to be tested.

[0046] On the contrary, after the first insertion portion 201 of the crimping member 200 is detached from the connector 34 of the product 30 to be tested, in order to enable the crimping member 200 to automatically move away from the product 30 to be tested and reset, the crimping member 200 and the support component 120 are also connected to each other by an elastic element 124. When the first insertion portion 201 of the crimping member 200 is inserted into the connector 34 of the product 30 to be tested, the elastic element 124 can undergo recoverable deformation and generate an elastic force. This elastic force is used to drive the crimping member 200 away from the support component 120 and reset when the first insertion portion 201 is detached from the connector 34 of the product 30 to be tested, so that the crimping member 200 can be completely detached from the connector 34 of the product 30 to be tested, and avoid the phenomenon that they cannot be completely detached when it is necessary to completely detach them.

[0047] It can be understood that only the second hook 123 or only the elastic element 124 can be provided on the support component 120, which is not limited herein.

[0048] It should be noted that, due to the relatively large elastic force generated by the elastic element 124, when the crimping member 200 moves relative to the support assembly 120 and away from the support assembly 120, there may be a relatively large displacement of the crimping member 200 due to the large elastic force, resulting in the crimping member 200 reciprocatingly rebounding under the action of the elastic force of the rebound. In order to limit the displacement of the crimping member 200 when the crimping member 200 moves away from the support assembly 120, so that the crimping member 200 can stop immediately after moving away from the support assembly 120, a first limiting plate 1221 is provided on the positioning frame 122 of the support assembly 120, and the crimping member 200 is provided with a second limiting plate 202 parallel to the first limiting plate 1221. The first limiting plate 1221 is used to abut against the second limiting plate 202, so as to limit the displacement of the crimping member 200 when the crimping member 200 moves away from the support assembly 120.

[0049] Furthermore, as Figure 5 and Figure 6 shown, the first plugging portion 201 has a plugging slot 201a, and a plurality of first pins 201b are provided in the plugging slot 201a. The first plugging portion 201 is floatingly arranged on the crimping member 200 through an elastic element 124 such as a spring that can be elastically deformed, so that the position can be adaptively adjusted, enabling the connector 34 of the product 30 to be measured to be accurately inserted into the first plugging portion 201, and connecting the connector 34 with the first pins 201b in the plugging slot 201a. Optionally, a second pin 201c is further provided at one end of the plugging slot 201a away from the first pins 201b. The second pin 201c is connected to the second plugging portion through a connecting wire to realize the electrical connection between the first plugging portion 201 and the second plugging portion, so that when the second plugging portion is plugged into the plugging position and the connector 34 of the product 30 to be measured is plugged into the first plugging portion 201, power supply to the product 30 to be measured is realized.

[0050] And still further, a chamfer 201d is provided on the inner peripheral edge of the plugging slot 201a. The chamfer 201d is used to guide the connector 34 of the product 30 to be measured when the connector 34 of the product 30 to be measured is plugged into the first plugging portion 201, so as to avoid the connector 34 being plugged obliquely, thereby ensuring the precise positioning of the connector 34 of the product 30 to be measured and the first plugging portion 201.

[0051] Thus, when the product 30 to be tested needs to be installed on the test fixture, first place the driving element 31 of the product 30 to be tested on the fixed seat 131 of the test fixture, then cover the cover plate 132, and use the first hook 133 and the positioning pin 134 to fix the cover plate 132 and the fixed seat 131 to each other, so that the driving element 31 is limited in the limiting groove 130a formed by the fixed seat 131 and the cover plate 132. Then press the crimping part 200 to make the first insertion part 201 and the connector 34 of the product 30 to be tested be inserted into each other, and use the second hook 123 to latch onto the crimping part 200, then the product 30 to be tested can be quickly clamped onto the test fixture, and the product 30 to be tested can be accurately positioned and crimped and conducted, so as to be able to quickly start the detection.

[0052] It can be seen that the test fixture provided by this application can quickly clamp and accurately position the product to be tested with a specific shape, so that when performing the crimping test, the product to be tested can be firmly positioned on the test fixture, and the first insertion part can accurately be inserted into the connector of the product to be tested, thereby improving the test accuracy and test efficiency.

[0053] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0054] The above-described embodiments only represent several implementation manners of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several deformations and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application should be subject to the appended claims.

Claims

1. A test fixture, characterized in that: include: A main body (100), the main body (100) comprising a supporting assembly (120) and a limiting assembly (130), the limiting assembly (130) having a limiting groove (130a), the limiting groove (130a) being used to limit the position of the product to be tested (30); A crimping component (200) is movably connected to the support assembly (120); the crimping component (200) can move relative to the support assembly (120) to approach or move away from the support assembly (120); a first plug-in portion (201) is provided on the crimping component (200); the first plug-in portion (201) is used to plug with a connector (34) of the product to be tested (30) when the crimping component (200) approaches the support assembly (120), so as to achieve conduction between the crimping component (200) and the product to be tested (30) when the first plug-in portion (201) is connected to an external power supply.

2. The test fixture according to claim 1, characterized in that: The limiting assembly (130) comprises a fixed seat (131) and a cover plate (132) rotatably connected to the fixed seat (131); the fixed seat (131) has a first surface (131a); the cover plate (132) has a second surface (132a); the cover plate (132) can be rotated relative to the fixed seat (131) around an axis extending along a first horizontal direction, so that the first surface (131a) and the second surface (132a) can be arranged relative to each other in a second horizontal direction perpendicular to the first horizontal direction and jointly form the limiting groove (130a).

3. The test fixture according to claim 2, characterized in that: The fixing seat (131) is provided with a first hook (133), and the first hook (133) is movable relative to the fixing seat (131) so as to be clamped on the cover plate (132) when the cover plate (132) and the fixing seat (131) form the limiting groove (130a); And / or, a positioning pin (134) is provided on the fixing seat (131), and the positioning pin (134) is used to be inserted into the cover plate (132) when the cover plate (132) and the fixing seat (131) form the limiting groove (130a).

4. The test fixture according to claim 1, characterized in that: The main body (100) further comprises a base (110), on which a second plug-in portion is provided which is electrically connected to the first plug-in portion (201) via a flat cable, and the second plug-in portion is used to connect to the external power source.

5. The test fixture according to claim 1, characterized in that: The support assembly (120) comprises a support frame (121) and a positioning frame (122) connected to the support frame (121); the crimping member (200) is movably connected to the positioning frame (122); the installation angle of the positioning frame (122) relative to the support frame (121) can be adjusted, so that the angle of the crimping member (200) relative to the horizontal plane can also be adjusted.

6. The test fixture according to claim 1, characterized in that: The support assembly (120) is provided with a first limiting plate (1221), and the crimping component (200) is provided with a second limiting plate (202) which is parallel to the first limiting plate (1221), and the first limiting plate (1221) is used to abut against the second limiting plate (202) to limit the displacement of the crimping component (200) when the crimping component (200) is away from the support assembly (120).

7. The test fixture according to claim 1, characterized in that: The support assembly (120) is provided with a second hook (123), and the second hook (123) is movable relative to the support assembly (120) so as to be clamped to the crimping piece (200) when the first plug-in portion (201) is plugged into the connector (34) of the product to be tested (30).

8. The test fixture according to claim 7, characterized in that: The crimping component (200) and the supporting assembly (120) are also connected to each other via an elastic element (124), and the elastic element (124) is configured to provide an elastic force for moving the crimping component (200) away from the supporting assembly (120) and restoring the crimping component when the second hook (123) is detached from the crimping component (200) and the first plug-in portion (201) is detached from the connector (34) of the product to be tested (30).

9. The test fixture according to claim 1, characterized in that: The first plug-in portion (201) can be floatingly arranged on the crimping piece (200), and / or the first plug-in portion (201) has a plug-in slot (201a), and the inner periphery of the plug-in slot (201a) is provided with a chamfer (201d), and the chamfer (201d) is used to provide guidance for the connector (34) of the product to be tested (30) when the connector (34) of the product to be tested (30) is plugged into the first plug-in portion (201).

10. A testing device, characterized in that: The invention comprises a test fixture as described in any one of claims 1 to 9.

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