An airtight tooling for testing products

Abstract

This utility model discloses an airtight fixture for testing products, including a fixture base plate, a contour block for limiting the N, W, and S direction displacement of the product to be tested, a clamping mechanism for limiting the upward displacement of the product to be tested, and a sealing and inflation mechanism. The contour block, clamping mechanism, and sealing and inflation mechanism are all mounted on the fixture base plate, and the contour block has a notch in the E direction for the sealing and inflation mechanism to extend into. Through the cooperation of the contour block, clamping mechanism, and sealing and inflation mechanism, the testing efficiency of the product is improved.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing tooling technology, specifically an airtightness testing tooling for outdoor lighting fixtures and automotive headlights. Background Technology

[0002] Airtightness testing is crucial in fields such as outdoor lighting fixtures and automotive lights. Positive and negative pressure airtightness testers are used to check the sealing performance of the product body to ensure it meets waterproof and dustproof standards. However, traditional airtightness testing fixtures are too inefficient. Therefore, there is a need for a more efficient airtightness testing fixture to improve product testing efficiency. Summary of the Invention

[0003] In view of the defects and problems of the existing technology, this utility model provides a product airtightness testing fixture, which greatly improves the testing efficiency, ensures the testing accuracy, and is suitable for airtightness testing needs in scenarios such as outdoor lighting and automotive headlights.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An airtight fixture for testing products includes a fixture base plate, a contour block for limiting the N, W, and S direction displacement of the product to be tested, a clamping mechanism for limiting the upward displacement of the product to be tested, and a sealing and inflation mechanism. The contour block, clamping mechanism, and sealing and inflation mechanism are all mounted on the fixture base plate, and the contour block has a notch in the E direction for the sealing and inflation mechanism to extend into.

[0006] Preferably, the upper surface of the contour block is provided with a groove that matches the structure of the product to be tested, and the contour block is provided with limiting plates in the N, W and S directions, which can accurately position and place the product to be tested, and realize the limiting of the product to be tested in the N, W and S directions.

[0007] Preferably, the clamping mechanism includes a clamping cylinder, a bracket, and a pressure head. The clamping mechanism is located on one side of the contour block and fixed to the tooling base plate. The clamping cylinder is equipped with a lifting rod, the upper end of which is hinged to one end of the bracket. The upper part of the clamping cylinder is also equipped with a T-block. The bracket is hinged to the T-block via a hinge. The other end of the bracket is fixedly connected to the pressure head. The pressure head presses on the product to be inspected, thereby realizing the upper limit of the clamping mechanism on the product to be inspected.

[0008] Preferably, the sealing and inflation mechanism includes a sealing cylinder, a sealing telescopic rod, and a sealing air inlet valve. The sealing cylinder is fixedly mounted on the tooling base plate. The sealing telescopic rod is directly opposite the notch in the E direction of the contour block, and the sealing telescopic rod head is fixedly connected to the sealing air inlet valve. The sealing air inlet valve is directly opposite the inflation port of the product to be tested, thereby realizing the sealing and inflation mechanism to limit the product to be tested in the E direction.

[0009] Preferably, the protective cover is made of transparent material and is positioned above the sealing and inflation mechanism to provide protection while also allowing operators to easily observe the status of the sealing cylinder during the testing process.

[0010] Preferably, there are two handling handles, located near the edge of the tooling base plate, to facilitate handling and use by operators.

[0011] With the above structure, this utility model accurately positions the product to be tested by using a contour block and limits the product in the N, W, and S directions. Combined with the clamping mechanism limiting the product in the upper direction and the sealing and inflation mechanism limiting the product in the E direction, the product's position is fixed during the testing process, avoiding displacement of the product and affecting the testing efficiency, thus greatly improving the efficiency of airtightness testing of products. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention;

[0013] Figure 2 yes Figure 1 The main view;

[0014] Figure 3 yes Figure 1 The left view;

[0015] Figure 4 yes Figure 1 Internal diagram;

[0016] Figure 5 yes Figure 4 The main view;

[0017] Figure 6 yes Figure 4 The right view;

[0018] Figure 7 yes Figure 1 Enlarged view of the contour block. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the embodiments given in the accompanying drawings.

[0020] This embodiment sets four directions in the horizontal direction: N, W, S and E, as shown in Figures 1-7. It includes a tooling base plate 1, a contour block 3 for limiting the N, W and S displacement of the product to be tested 8, a clamping mechanism 4 for limiting the upward displacement of the product to be tested 8, and a sealing and inflation mechanism 5. The contour block 3, the clamping mechanism 4 and the sealing and inflation mechanism 5 are all mounted on the tooling base plate 1, and the contour block 3 has a notch in the E direction for the sealing and inflation mechanism 5 to extend into.

[0021] Referring to 1-2, 4-5, and 7, the upper surface of the contour block 3 is provided with a groove 11, which matches the structure of the product 8 to be tested. The contour block 3 is provided with limiting plates 12 in the N, W, and S directions. In this embodiment, the operator places the product 8 to be tested on the groove 11 on the upper surface of the contour block 3. The limiting plates 12 in the N, W, and S directions of the contour block 3 limit the product 8 to be tested in the N, W, and S directions. Then, with the clamping mechanism 4 limiting the product 8 to be tested in the upper direction, the product 8 to be tested is fixed on the contour block 3, which greatly improves the testing efficiency.

[0022] Referring to Figures 1-6, the clamping mechanism 4 includes a clamping cylinder 21, a bracket 22, and a pressure head 23. The clamping mechanism 4 is located on one side of the contour block 3 and fixed on the tooling base plate 1. The clamping cylinder 21 is provided with a lifting rod 26, the upper end of which is hinged to one end of the bracket 22. The upper part of the clamping cylinder 21 is also provided with a T-shaped block 27. The bracket 22 is hinged to the T-shaped block 27, and the other end of the bracket 22 is fixedly connected to the pressure head 23. The pressure head 23 presses on the product 8 to be tested. In this embodiment, when testing the product 8, the pressure head 23 of the clamping mechanism 4 is pressed on the product 8 to be tested, and the product 8 is moved upward to the upper limit. After the test is completed, under the action of the lifting rod 26, the clamping mechanism 4 lifts the pressure head 23 upward through the bracket 22 to remove the product and continues to repeat the test on the next group of products 8 to be tested, thereby improving the testing efficiency. The bracket 22 rotates around the hinge point of the T-block 27, which can reduce the swing amplitude of the bracket 22 and reduce the stroke of the cylinder.

[0023] Referring to Figures 1-6, the sealing and inflation mechanism 5 includes a sealing cylinder 31, a sealing telescopic rod 32, and a sealing air inlet valve 33. The sealing cylinder 31 is fixedly mounted on the tooling base plate 1. The sealing telescopic rod 32 faces the notch in the E direction of the contour block 3, and the sealing telescopic rod 32 is fixedly connected to the head of the sealing telescopic rod 32. The sealing air inlet valve 33 faces the inflation port of the product to be tested 8. In this embodiment, the pressure generated by the sealing cylinder 31 pushes the sealing telescopic rod 32, causing the sealing air inlet valve 33 to inflate the product to be tested 8 and limit the product to be tested 8 in the E direction. After the product to be tested 8 is tested, the sealing telescopic rod 32 retracts and returns to its original state.

[0024] Referring to 1-5, the protective cover 6 is made of transparent material and is positioned above the sealing and inflation mechanism 5. In this embodiment, when testing the product, the operator can observe the state of the sealing cylinder 31 through the protective cover 6 during the testing process.

[0025] Referring to Figures 1-7, the operator uses the handling handle 7 to move the airtight fixture for testing the product to the designated position. Then, the product to be tested 8 is placed on the groove 11 on the upper surface of the contour block 3. The position of the product is adjusted so that it fits snugly against the contour block 3. The pressure head 23 on the clamping mechanism 4 is then pressed onto the product to be tested 8. Under the N, W, and S direction limit of the contour block 3 and the upper limit of the clamping mechanism 4, the product to be tested 8 can be stably placed on the groove 11 on the upper surface of the contour block 3, without affecting the testing efficiency due to displacement. Then, the pressure of the sealing cylinder 31 pushes the sealing telescopic rod 32, so that the sealing air inlet valve 33 is directly inflated into the air inlet of the product to be tested 8, and the product to be tested is limited in the E direction. After the product passes the test, the sealing telescopic rod 32 and the clamping mechanism 4 are retracted to restore the original state. The product is then removed, and the product to be tested 8 is placed again for a new round of testing.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the above embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A detection product air-tight tooling comprising a tooling base plate (1), characterized in that, It also includes a contour block (3) for limiting the N, W, and S displacement of the product to be tested (8), a clamping mechanism (4) for limiting the upward displacement of the product to be tested (8), and a sealing and inflation mechanism (5). The contour block (3), the clamping mechanism (4), and the sealing and inflation mechanism (5) are all mounted on the tooling base plate (1), and the contour block (3) has a notch in the E direction for the sealing and inflation mechanism (5) to extend into.

2. The leak testing tool of claim 1, wherein, The upper surface of the contour block (3) is provided with a groove (11), the groove (11) is matched with the structure of the product (8) to be tested, and the contour block (3) is provided with limiting plates (12) in the N, W and S directions.

3. The airtightness testing fixture for products according to claim 1, characterized in that, The clamping mechanism (4) includes a clamping cylinder (21), a bracket (22), and a pressure head (23). The clamping mechanism (4) is set on one side of the contour block (3) and fixed on the tooling base plate (1). The clamping cylinder (21) is provided with a lifting rod (26). The upper end of the lifting rod (26) is hinged to one end of the bracket (22). The upper part of the clamping cylinder (21) is also provided with a T-shaped block (27). The bracket (22) is hinged to the T-shaped block (27) through a hinge. The other end of the bracket (22) is fixedly connected to the pressure head (23). The pressure head (23) presses on the product (8) to be tested.

4. The airtightness testing fixture for products according to claim 1, characterized in that, The sealing and inflation mechanism (5) includes a sealing cylinder (31), a sealing telescopic rod (32), and a sealing air valve (33). The sealing cylinder (31) is fixedly mounted on the tooling base plate (1). The sealing telescopic rod (32) is directly opposite the notch in the direction E of the contour block (3), and the sealing telescopic rod (32) is fixedly connected to the head of the sealing telescopic rod (32). The sealing air valve (33) is directly opposite the inflation port of the product to be tested (8).

5. The airtightness testing fixture for products according to claim 1, characterized in that, It also includes a protective cover (6), which is made of transparent material and is positioned above the sealing and inflation mechanism (5).

6. The airtightness testing fixture for products according to claim 1, characterized in that, It also includes two handling handles (7), which are located near the edge of the tooling base plate (1).

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