Testing tool

Abstract

The utility model discloses a test tool, and belongs to the technical field of test tools. The testing tool comprises a clamp, the clamp comprises a first mold, a second mold and two buckle assemblies, each buckle assembly comprises a buckle body, a first elastic piece and a buckle seat, the buckle body is pivoted to the side face of the first mold, the first elastic piece is arranged between the buckle body and the first mold, the buckle seat is arranged on the second mold, and the first elastic piece is arranged between the buckle body and the second mold. The first elastic piece has the trend of enabling one end of the buckle body to rotate in the direction away from the first mold so that the buckle body can be connected with the buckle base in a clamped mode, and therefore the product can be clamped between the first mold and the second mold. The testing tool provided by the utility model is prevented from being opened due to misoperation after being overturned, and a product is prevented from falling off and being damaged.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling technology, and in particular to a testing tooling. Background Technology

[0002] In related technologies, the testing procedure for products with non-probe contact flexible connector chips is as follows: The product is placed in the test fixture, which is then rotated 180° and placed flat on the test table. The flexible connector is then engaged with the test terminal transfer station on the worktable. The tester uses a multimeter to measure the corresponding pin signals of the flexible connector according to the test specifications. After the test, the flexible connector and the test terminal transfer station are disconnected. The fixture is then rotated 180° and opened to remove the product, thus completing the test. The aforementioned fixture includes an upper and lower mold that can magnetically attract the product; however, the fixture is easily opened accidentally after rotation, causing the product to fall out and be damaged. Utility Model Content

[0003] The purpose of this utility model is to provide a testing fixture that prevents the product from being opened due to accidental operation after being flipped over, thus avoiding damage to the product from falling off.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A test fixture includes a clamp, the clamp comprising:

[0006] First mold and second mold;

[0007] Two snap-fit ​​assemblies are provided, each comprising a snap-fit ​​body, a first elastic element, and a snap-fit ​​seat. The snap-fit ​​body is pivotally connected to the side of the first mold. The first elastic element is disposed between the snap-fit ​​body and the first mold. The snap-fit ​​seat is disposed in the second mold. The first elastic element has a tendency to rotate one end of the snap-fit ​​body away from the first mold, so that the snap-fit ​​body engages with the snap-fit ​​seat, thereby clamping the product between the first mold and the second mold.

[0008] In some possible implementations, the first mold includes a first pressing block and a first cover plate connected together, the second mold includes a second pressing block and a second cover plate connected together, the buckle body is pivotally connected to the first cover plate, the buckle seat is disposed on the second cover plate, the first pressing block has a protruding abutment portion, the second pressing block has a groove, the product is disposed between the bottom of the groove and the abutment portion, the groove wall of the groove and the periphery of the abutment portion have a first gap, and a second gap is provided between the first cover plate and the second cover plate.

[0009] In some possible implementations, the first mold further includes a second elastic element disposed between the first cover plate and the first pressing block, the second elastic element having a tendency to move the first pressing block away from the first cover plate, the first pressing block pressing the product.

[0010] In some possible implementations, the middle part of the abutment portion is provided with a first clearance groove, and / or the bottom of the groove is provided with a second clearance groove, and / or the second pressing block is provided with a third clearance groove, the third clearance groove being located on the outer periphery of the groove and communicating with the groove.

[0011] In some possible implementations, the second mold has an opening that connects the groove to the outside, through which the product can pass.

[0012] In some possible implementations, a limiting platform is provided on the outer side of the abutting portion, the height of the limiting platform being lower than the height of the abutting portion, and the limiting platform being able to abut against the end face of the second pressing block facing the first mold.

[0013] In some possible implementations, the cross-sections of the first mold and the second mold are both rectangular, and the two snap-fit ​​components are disposed on opposite sides of the first mold and the second mold.

[0014] In some possible implementations, the test fixture further includes a base plate, a test circuit board disposed on the base plate, a clamp disposed on the base plate, and the product being electrically connected to the test circuit board.

[0015] In some possible implementations, both the first mold and the second mold are provided with magnetic elements, so that the clamp is magnetically attracted to the base plate by the magnetic elements.

[0016] In some possible implementations, the base plate is provided with one or more of the fixtures, the base plate is provided with one or more adapter circuit boards, the adapter circuit boards are connected to the test circuit board, the adapter circuit boards and the fixtures are configured in a one-to-one correspondence, and the product is connected to the adapter circuit boards accordingly.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a testing fixture with the first mold facing upwards and the second mold facing downwards. Pressing the buckle body overcomes the elastic force of the first elastic element, separating the buckle body from the buckle seat. The product is placed between the first and second molds; the buckle body then snaps into place again, clamping the product within the fixture. The fixture is then rotated 180° so that the first mold faces downwards and the second mold faces upwards for product testing. After testing, the fixture is rotated again so that the first mold faces upwards, and the buckle body is pressed down to remove the product.

[0019] The snap-fit ​​body is connected to the first mold. When opening the clamp, the first mold must face upwards and the second mold downwards. The first mold and both snap-fit ​​bodies must be held firmly at all times to prevent accidental opening of the clamp by touching only one side of the snap-fit ​​body, thus preventing the product from falling off and being damaged. It also prevents accidental opening of the clamp due to flipping, protecting the product. The two snap-fit ​​components ensure the reliable connection between the first and second molds. The snap-fit ​​body is rotatably connected to the shaft pin and elastically connected to the first mold via a first elastic element, facilitating opening and closing. Compared to other opening and closing methods, the snap-fit ​​method is less likely to cause vibration between the first and second molds, effectively reducing the product breakage rate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the testing fixture provided in a specific embodiment of this utility model;

[0021] Figure 2 This is an exploded view of the fixture provided in a specific embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the first pressing block provided in a specific embodiment of the present utility model;

[0023] Figure 4 This is a front view of the second pressing block provided in a specific embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the product provided by a specific embodiment of this utility model;

[0025] Figure 6 This is a front view of the fixture provided in a specific embodiment of this utility model;

[0026] Figure 7 yes Figure 6 A sectional view of AA;

[0027] Figure 8 yes Figure 7 Enlarged view of point P.

[0028] In the picture:

[0029] 1. First mold; 11. First pressure block; 111. Abutment part; 112. First clearance groove; 113. Limiting platform; 12. First cover plate; 13. Second elastic element; 14. Positioning pin; 15. Guide post;

[0030] 2. Second mold; 21. Second pressing block; 211. Groove; 212. Second clearance groove; 213. Third clearance groove; 214. Guide surface; 22. Second cover plate; 221. Second receiving groove; 23. Positioning sleeve; 24. Opening;

[0031] 3. Buckle assembly; 31. Buckle body; 32. Shaft pin; 33. First elastic element; 34. Buckle seat;

[0032] 4. Base plate; 41. Installation acupoints; 5. Adapter circuit board; 6. Test circuit board; 7. Magnetic components;

[0033] 8. Protective components; 81. Protective plate; 82. Hexagonal copper pillar; 9. Mounting plate; 91. Elongated hole; 10. Adjusting bolt; 200. Product; 201. Protruding structure; 300. Fixture;

[0034] L1, first gap; L2, second gap. Detailed Implementation

[0035] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] like Figure 1 and Figure 2As shown, this embodiment provides a testing fixture, including a clamp 300. The clamp 300 includes a first mold 1, a second mold 2, and two snap-fit ​​assemblies 3, allowing a product 200 to be placed between the first mold 1 and the second mold 2. Each snap-fit ​​assembly 3 includes a snap-fit ​​body 31, a first elastic member 33, and a snap-fit ​​seat 34. The snap-fit ​​body 31 is pivotally connected to the side of the first mold 1. The first elastic member 33 is disposed between the snap-fit ​​body 31 and the first mold 1. The snap-fit ​​seat 34 is disposed in the second mold 2. The first elastic member 33 has a tendency to rotate one end of the snap-fit ​​body 31 away from the first mold 1, so that the snap-fit ​​body 31 engages with the snap-fit ​​seat 34, thereby clamping the product 200 between the first mold 1 and the second mold 2. Exemplarily, the snap-fit ​​assembly 3 also includes a pivot pin 32, which is disposed in the first mold 1, through which the snap-fit ​​body 31 passes and is rotatably connected.

[0039] Position the first mold 1 facing upwards and the second mold 2 facing downwards; press down on the buckle body 31, which overcomes the elastic force of the first elastic element 33, causing the buckle body 31 to separate from the buckle seat 34; place the product 200 between the first mold 1 and the second mold 2; the buckle body 31 then snaps into the buckle seat 34, clamping the product 200 within the fixture 300. Rotate the fixture 300 180° so that the first mold 1 faces downwards and the second mold 2 faces upwards, and test the product 200. After testing, rotate the fixture 300 again so that the first mold 1 faces upwards and press down on the buckle body 31 to remove the product 200.

[0040] The snap-fit ​​body 31 is connected to the first mold 1. When opening the clamp 300, the first mold 1 must face upwards and the second mold 2 downwards, always holding the first mold 1 and both snap-fit ​​bodies 31 to prevent accidental opening of the clamp 300 due to contact with one side of the snap-fit ​​body 31. This prevents the product 200 from falling off and being damaged, and also prevents damage to the product 200 from accidental opening of the clamp 300 after flipping, thus protecting the product 200. By setting two snap-fit ​​components 3, the connection reliability of the first mold 1 and the second mold 2 is ensured. By setting the snap-fit ​​body 31 to be rotatably connected to the shaft pin 32 and elastically connected to the first mold 1 through the first elastic element 33, the snap-fit ​​body 31 is easy to open and close. Compared with other opening and closing methods, the snap-fit ​​method is less likely to cause vibration of the first mold 1 and the second mold 2, which can effectively reduce the breakage rate of the product 200.

[0041] Optionally, the first elastic element 33 is a spring, and multiple springs are provided to increase the elasticity between the buckle body 31 and the first mold 1. For example, three springs are provided between the buckle body 31 and the first mold 1 at intervals.

[0042] In one embodiment, the cross-sections of the first mold 1 and the second mold 2 are both rectangular. Two snap-fit ​​components 3 are disposed on opposite sides of the first mold 1 and the second mold 2. The clamp 300 can be opened by simultaneously pressing the two snap-fit ​​bodies 31 with two fingers of one hand, making it convenient to use. In other embodiments, the two snap-fit ​​components 3 can also be installed on two adjacent sides of the clamp 300.

[0043] like Figure 1 As shown, the testing fixture also includes a base plate 4, a test circuit board 6 mounted on the base plate 4, and a fixture 300 mounted on the base plate 4. The product 200 can be electrically connected to the test circuit board 6, allowing testing of the product 200 via the test circuit board 6. The testing steps are simple, automated, highly operable, efficient, and less prone to errors. For example, the test circuit board 6 has a switch; turning on the switch enables the test circuit board 6 to test the product 200. Optionally, the test circuit board 6 has a test module. For example, the product 200 may have a flexible chip, and the test circuit board 6 is used for non-probe contact testing of the flexible chip. Its testing principle is the same as that of a multimeter in the prior art. The test module is prior art and will not be described in detail. Optionally, the test circuit board 6 can be connected to external devices. External devices can be displays, computers, or mobile terminal devices. The test circuit board 6 outputs test information through these external devices for easy recording, browsing, or further analysis and processing as needed.

[0044] The testing fixture also includes an adapter circuit board 5 mounted on the base plate 4. The adapter circuit board 5 and the test circuit board 6 are electrically connected, allowing the product 200 to connect to the adapter circuit board 5, facilitating the connection between the product 200 and the test circuit board 6. The adapter circuit board 5 can also be adapted to different products 200. When testing different products 200, the appropriate adapter circuit board 5 can be selected for connection. Specifically, the two can be plugged in or overlapped, etc., without limitation.

[0045] The base plate 4 is provided with mounting holes 41, and the clamp 300 is located in the mounting holes 41 to ensure the installation accuracy of the clamp 300, so as to facilitate the precise connection between the product 200 and the test circuit board 6. In this embodiment, it is convenient to connect the product 200 and the adapter circuit board 5.

[0046] Optionally, a mounting plate 9 is installed on the base plate 4. The mounting plate 9 has an elongated hole 91. The test circuit board 6 is connected to the elongated hole 91 by an adjusting screw 10. The position of the test circuit board 6 can be adjusted along the elongated hole 91 according to the position of the test points 200 for different products. The adjusting screw is a wing bolt.

[0047] Optionally, a protective component 8 for protecting the test circuit board 6 is installed on the base plate 4. The protective component 8 includes a hexagonal copper pillar 82 and a protective plate 81. The protective plate 81 is supported and installed on the base plate 4 by the hexagonal copper pillar 82 and covers the test circuit board 6.

[0048] Optionally, the bottom of the base plate 4 is equipped with feet. The bottom of the base plate 4 is equipped with a magnetic structure, and the base plate 4 is attached to the worktable by the magnetic structure to prevent the test fixture from being moved by accident.

[0049] Both the first mold 1 and the second mold 2 are equipped with magnetic components 7, allowing the clamp 300 to be magnetically attached to the base plate 4 via the magnetic components 7, preventing damage to the product 200 due to collisions with the clamp 300. For example, both the first cover plate 12 and the second cover plate 22 have mounting grooves, and the magnetic component 7 is a magnetic steel column installed in the mounting groove, magnetically attracting the magnetic steel column to the base plate 4. By providing magnetic components 7 in both the first mold 1 and the second mold 2, the clamp 300 can be attached to the base plate 4 on both the front and back sides, enabling testing of the product 200 from both sides. This allows for testing of soft-sided products 200 that do not require flipping, improving the applicability of the testing fixture.

[0050] The base plate 4 is provided with one or more fixtures 300 and one or more adapter circuit boards 5. The adapter circuit boards 5 are connected to the test circuit board 6, and the adapter circuit boards 5 and fixtures 300 are configured in a one-to-one correspondence. Products 200 are connected to the adapter circuit boards 5 respectively. Multiple products 200 can be tested through one test circuit board 6, simplifying the structure. By increasing the number of fixtures 300, adapter circuit boards 5, and test circuit boards 6, testing of a single product 200 or simultaneous testing of multiple products 200 can be achieved, improving testing efficiency. For example, two fixtures 300 are provided.

[0051] like Figures 2-7 As shown, the first mold 1 includes a detachably connected first pressing block 11 and a first cover plate 12. Exemplarily, the first cover plate 12 has a first receiving groove, in which the first pressing block 11 is received, and the first pressing block 11 is connected to the first cover plate 12 by screws. The second mold 2 includes a detachably connected second cover plate 22 and a second pressing block 21. Exemplarily, the second cover plate 22 has a second receiving groove 221, in which the second pressing block 21 is received, and the second pressing block 21 is connected to the second cover plate 22 by screws. The product 200 is placed between the first pressing block 11 and the second pressing block 21. A snap-fit ​​body 31 is connected to the first cover plate 12, and a snap-fit ​​seat 34 is connected to the second cover plate 22. The first pressing block 11 and the second pressing block 21 can be replaced as needed, such as for testing different models of product 200 or due to damage to the pressing blocks, thus improving applicability.

[0052] The first mold 1 also includes a second elastic element 13, which is disposed between the first cover plate 12 and the first pressure block 11. The second elastic element 13 has a tendency to move the first pressure block 11 away from the first cover plate 12. The shaft pin 32 is disposed on the first cover plate 12, and the first pressure block 11 presses against the product 200. After the buckle body 31 is snapped into the buckle seat 34, the elasticity of the second elastic element 13 causes the first pressure block 11 to press against the product 200, improving the clamping reliability of the product 200 and preventing the product 200 from shaking and being damaged in the clamp 300. Optionally, the second elastic element 13 is a spring, and multiple second elastic elements 13 are provided. Optionally, multiple second elastic elements 13 are arranged in a matrix between the first cover plate 12 and the first pressure block 11.

[0053] The first mold 1 also includes guide connecting posts, which are connected to the first cover plate 12. The first pressure block 11 is slidably connected to the guide connecting posts. Specifically, there are four connecting guide posts 15, which are connected to the four corners of the first cover plate 12 with a rectangular cross section. The connecting guide posts 15 are equal-height screws, which are threaded to the first cover plate 12 for easy connection.

[0054] like Figure 7 and Figure 8 As shown, the first pressing block 11 has a protruding abutment portion 111, the second pressing block 21 has a groove 211, the product 200 is disposed between the bottom of the groove 211 and the abutment portion 111, the groove wall of the groove 211 and the periphery of the abutment portion 111 are provided with a first gap L1, and a second gap L2 is provided between the first cover plate 12 and the second cover plate 22 to prevent structural interference and ensure that the first mold 1 and the second mold 2 can press the product 200.

[0055] The shape of the groove 211 is adapted to the shape of the product 200, which can be any shape such as rectangular or circular. A first clearance groove 112 is provided in the middle of the abutment portion 111 to avoid the protruding structure 201 of the product 200 facing the first pressing block 11. A second clearance groove 212 is provided at the bottom of the groove 211 to avoid the protruding structure 201 of the product 200 facing the second pressing block 21. The second pressing block 21 is provided with a third clearance groove 213, which is located on the outer periphery of the groove 211 and communicates with it, to avoid the protruding structures 201 around the product 200. By providing clearance grooves, direct hard contact between the first pressing block 11 and the second pressing block 21 with the product 200 is prevented, thus avoiding surface breakage of the product 200. A guide surface 214 is provided at the opening of the groove 211 to facilitate the first pressing block 11 pressing down into the groove 211.

[0056] The second mold 2 has an opening 24 that connects the outside world to the groove 211. The product 200 can pass through the opening 24, which facilitates the connection between the product 200 and the test circuit board 6. Specifically, the opening 24 is opened on the second cover plate 22 and the second pressure block 21.

[0057] A limiting platform 113 is provided on the outer side of the abutment part 111. The height of the limiting platform 113 is lower than the height of the abutment part 111. The limiting platform 113 can abut against the end face of the second pressing block 21 facing the first mold 1, so as to prevent the first mold 1 from pressing the second mold 2 too much and causing the product 200 to be damaged.

[0058] Optionally, the first cover plate 12 has a recessed groove, and the buckle body 31 is disposed in the recessed groove. The first cover plate 12 has a through hole, and the pin 32 passes through part of the through hole, then through the buckle body 31, and then through another part of the through hole to connect the buckle body 31 and the pin 32. The buckle body 31 has a hook that hooks onto the buckle seat 34.

[0059] Optionally, the first cover plate 12 is provided with a positioning pin 14, and the second cover plate 22 is provided with a positioning sleeve 23. The positioning pin 14 can be inserted into the positioning sleeve 23 to realize the positioning connection of the first cover plate 12 and the second cover plate 22, ensuring the connection accuracy of the first mold 1 and the second mold 2, and facilitating positioning and installation.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A testing fixture, characterized in that, Includes a clamp (300), said clamp (300) comprising: First mold (1) and second mold (2); Two snap-fit ​​assemblies (3) are provided. Each snap-fit ​​assembly (3) includes a snap-fit ​​body (31), a first elastic element (33), and a snap-fit ​​seat (34). The snap-fit ​​body (31) is pivotally connected to the side of the first mold (1). The first elastic element (33) is disposed between the snap-fit ​​body (31) and the first mold (1). The snap-fit ​​seat (34) is disposed in the second mold (2). The first elastic element (33) has a tendency to rotate one end of the snap-fit ​​body (31) away from the first mold (1) so that the snap-fit ​​body (31) engages with the snap-fit ​​seat (34), thereby clamping the product (200) between the first mold (1) and the second mold (2).

2. The test fixture according to claim 1, characterized in that, The first mold (1) includes a first pressing block (11) and a first cover plate (12) connected together. The second mold (2) includes a second pressing block (21) and a second cover plate (22) connected together. The buckle body (31) is pivotally connected to the first cover plate (12). The buckle seat (34) is disposed on the second cover plate (22). The first pressing block (11) has a protruding abutment part (111). The second pressing block (21) has a groove (211). The product (200) is disposed between the bottom of the groove (211) and the abutment part (111). The groove wall of the groove (211) and the periphery of the abutment part (111) are provided with a first gap (L1). A second gap (L2) is provided between the first cover plate (12) and the second cover plate (22).

3. The testing fixture according to claim 2, characterized in that, The first mold (1) further includes a second elastic element (13) disposed between the first cover plate (12) and the first pressing block (11). The second elastic element (13) has a tendency to move the first pressing block (11) away from the first cover plate (12). The first pressing block (11) presses against the product (200).

4. The testing fixture according to claim 2, characterized in that, The abutment portion (111) is provided with a first clearance groove (112) in the middle part, and / or the bottom of the groove (211) is provided with a second clearance groove (212), and / or the second pressing block (21) is provided with a third clearance groove (213). The third clearance groove (213) is located on the outer periphery of the groove (211) and communicates with the groove (211).

5. The testing fixture according to claim 2, characterized in that, The second mold (2) has an opening (24) that connects the groove (211) and the outside, and the product (200) can pass through the opening (24).

6. The test fixture according to claim 2, characterized in that, The outer side of the abutment part (111) is provided with a limiting platform (113), the height of the limiting platform (113) is lower than the height of the abutment part (111), and the limiting platform (113) can abut against the end face of the second pressure block (21) facing the first mold (1).

7. The test fixture according to claim 1, characterized in that, The cross-sections of the first mold (1) and the second mold (2) are both rectangular, and the two buckle assemblies (3) are located on opposite sides of the first mold (1) and the second mold (2).

8. The test fixture according to any one of claims 1-7, characterized in that, The test fixture also includes a base plate (4) and a test circuit board (6) disposed on the base plate (4). The fixture (300) is disposed on the base plate (4), and the product (200) can be electrically connected to the test circuit board (6).

9. The test fixture according to claim 8, characterized in that, Both the first mold (1) and the second mold (2) are provided with magnetic components (7), so that the clamp (300) is magnetically attracted to the base plate (4) through the magnetic components (7).

10. The test fixture according to claim 8, characterized in that, The base plate (4) is provided with one or more of the fixtures (300), and the base plate (4) is provided with one or more adapter circuit boards (5). The adapter circuit boards (5) are connected to the test circuit board (6). The adapter circuit boards (5) and the fixtures (300) are set in a one-to-one correspondence. The product (200) is connected to the adapter circuit boards (5).

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