An air tightness testing apparatus

Abstract

The utility model discloses a kind of air tightness testing device, including mounting bracket, positioning fixture connected to the lower part of one side of mounting bracket, and first lifting mechanism connected to the upper part of one side of mounting bracket;The first lifting mechanism is driven to be connected with first lifting seat, and second lifting mechanism is also installed on first lifting seat;The first lifting mechanism is driven to be connected with first lifting plate, and the end of first lifting plate extends to the above of positioning fixture arrangement;The end of first lifting plate is also installed with first pressing block, and the bottom of first pressing block is also connected with sealing plug.The utility model can realize the automatic detection of product air tightness, greatly improve the detection efficiency, shorten the detection cycle, and overall design is reasonable, compact structure, convenient to use, at the same time, be provided with product clamping mechanism, can be the test end of product clamping limit, guarantee when its air tightness detection, its placed stability.

Description

Technical Field

[0001] This utility model relates to the field of automation technology, and in particular to an airtightness testing device. Background Technology

[0002] In industrial production, airtightness testing is a crucial step in ensuring product quality and safety. For small businesses, airtightness testing is typically done manually, which suffers from low efficiency, low accuracy, and complex operation. Furthermore, existing semi-automated testing equipment also suffers from complex structures and cumbersome operation, thus requiring improvement. Utility Model Content

[0003] The purpose of this utility model is to provide an airtightness testing device that can realize automated testing of product airtightness, greatly improve testing efficiency, shorten the testing cycle, and has a reasonable overall design, compact structure, and is easy to use. At the same time, it is equipped with a product clamping mechanism that can clamp and limit the test end of the product to ensure its stability when it is placed during airtightness testing.

[0004] To achieve the above objectives, the following technical solution is adopted: An airtightness testing device includes a mounting bracket, a positioning fixture connected to the lower part of one side of the mounting bracket, and a first lifting mechanism connected to the upper part of one side of the mounting bracket. The first lifting mechanism is driven to connect to a first lifting seat, and a second lifting mechanism is also installed on the first lifting seat. The second lifting mechanism is driven to connect to a first lifting plate, and one end of the first lifting plate extends above the positioning fixture. A first pressure block is also installed at one end of the first lifting plate, and a sealing plug is connected to the bottom of the first pressure block. An air outlet is opened at the bottom of the sealing plug, and an air source connector communicating with the air outlet is installed on one side of the first pressure block. A product clamping mechanism for clamping and limiting the product is also installed at one end of the mounting bracket above the positioning fixture.

[0005] Furthermore, the first lifting mechanism includes a first fixing block connected to the upper part of one side of the mounting bracket, a first lifting cylinder mounted vertically on the first fixing block, and a first slide rail assembly arranged vertically on the upper part of one side of the mounting bracket; the first lifting seat includes a first connecting seat; the first connecting seat is slidably arranged on the first slide rail assembly and connected to the first lifting cylinder, and the top of the first connecting seat is also connected to a first mounting plate; the second lifting mechanism is mounted on the bottom of the first mounting plate.

[0006] Furthermore, the second lifting mechanism includes a second lifting cylinder installed at the bottom of the first mounting plate, and the first lifting plate is connected to the output shaft of the second lifting cylinder.

[0007] Furthermore, a first limiting plate is connected to one side of the mounting bracket below the first slide rail assembly, and a first lifting plate is located above the first limiting plate.

[0008] Furthermore, a sealing ring is also fitted onto the sealing plug.

[0009] Furthermore, the product clamping mechanism includes a second mounting plate connected to one end of the mounting bracket, a third lifting cylinder mounted on one side of the second mounting plate, and a second lifting plate connected to the third lifting cylinder; one end of the second lifting plate extends above the positioning fixture, and a clamping cylinder is also installed at the bottom of one end of the second lifting plate; the clamping cylinder also drives two clamping blocks.

[0010] Furthermore, a buffer pad is connected to each of the two clamping blocks on opposite sides.

[0011] Furthermore, a semi-circular slot is provided on each of the two buffer pads on opposite sides.

[0012] By adopting the above solution, the beneficial effects of this utility model are: This invention enables automated testing of product airtightness, greatly improving testing efficiency and shortening the testing cycle. It also features a reasonable overall design, compact structure, and ease of use. Furthermore, it is equipped with a product clamping mechanism that can clamp and limit the test end of the product, ensuring its stability during airtightness testing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A structural diagram from another perspective; The following are explanations of the labels in the attached diagram: 1. Mounting bracket; 2. Positioning fixture; 3. First lifting mechanism; 4. First lifting seat; 5. Second lifting mechanism; 6. First lifting plate; 7. Product clamping mechanism; 11. First limiting plate; 31. First fixing block; 32. First lifting cylinder; 33. First slide rail assembly; 41. First connecting seat; 42. First mounting plate; 61. First pressure block; 62. Sealing plug; 63. Air source connector; 71. Second mounting plate; 72. Third lifting cylinder; 73. Second lifting plate; 74. Clamping cylinder; 75. Clamping block; 76. Buffer pad. Detailed Implementation

[0014] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Reference Figures 1 to 2As shown, this utility model provides an airtightness testing device. In one embodiment, it includes a mounting bracket 1, a positioning fixture 2 connected to the lower part of one side of the mounting bracket 1, and a first lifting mechanism 3 connected to the upper part of one side of the mounting bracket 1. The first lifting mechanism 3 is driven to connect to a first lifting seat 4, and a second lifting mechanism 5 is also installed on the first lifting seat 4. The second lifting mechanism 5 is driven to connect to a first lifting plate 6, and one end of the first lifting plate 6 extends above the positioning fixture 2. A first pressure block 61 is also installed at one end of the first lifting plate 6, and a sealing plug 62 is connected to the bottom of the first pressure block 61. An air outlet is opened at the bottom of the sealing plug 62, and an air source connector 63 communicating with the air outlet is also installed on one side of the first pressure block 61. A product clamping mechanism 7 for clamping and limiting the product is also installed at one end of the mounting bracket 1 above the positioning fixture 2.

[0016] In this embodiment, the positioning fixture 2 has a limiting slot. The product is placed in the limiting slot with the test port facing upwards. The shape, size, and structure of the positioning fixture 2 can be designed according to the product to be tested. After the product is placed on the positioning fixture 2, the product clamping mechanism 7 clamps and limits the product test end. Then, the first lifting mechanism 3 drives the first lifting seat 4 to descend, so that the sealing plug 62 is inserted into the test port of the product. Preferably, the sealing plug 62 is also fitted with a sealing ring, which is inserted into the test port of the product and contacts its inner wall. Then, the second lifting mechanism 5 drives the first lifting plate 6 to lift the sealing plug 62. During the lifting process of the sealing plug 62, the sealing ring will deform due to contact with the inner wall of the product (the inner wall of the product will generate resistance to the sealing ring). The deformation of the sealing ring is used to fill the gap between the sealing ring and the product to seal the product test port. Then, the air source connector 63 is connected to an external air source to input high-pressure gas into the product, and then the air tightness tester is used to determine whether the product is leaking.

[0017] In one embodiment, the first lifting mechanism 3 includes a first fixing block 31 connected to the upper part of one side of the mounting bracket 1, a first lifting cylinder 32 mounted vertically on the first fixing block 31, and a first slide rail assembly 33 arranged vertically on the upper part of one side of the mounting bracket 1; the first lifting seat 4 includes a first connecting seat 41; the first connecting seat 41 is slidably arranged on the first slide rail assembly 33 and connected to the first lifting cylinder 32, and the top of the first connecting seat 41 is also connected to a first mounting plate 42; the second lifting mechanism 5 is mounted on the bottom of the first mounting plate 42. The first slide rail assembly 33 guides the first connecting seat 41 during its lifting motion, ensuring its lifting stability. Simultaneously, a first buffer is provided on the mounting bracket 1 below the first connecting seat 41, which limits the descent stroke of the first connecting seat 41, ensuring its operational safety.

[0018] Preferably, the second lifting mechanism 5 includes a second lifting cylinder installed at the bottom of the first mounting plate 42, and the first lifting plate 6 is connected to the output shaft of the second lifting cylinder; a first limiting plate 11 is also connected to one side of the mounting bracket 1 below the first slide rail assembly 33, and the first lifting plate 6 is located above the first limiting plate 11. A second buffer is also installed on the first limiting plate 11 to limit the descent stroke of the first lifting plate 6.

[0019] In one embodiment, the product clamping mechanism 7 includes a second mounting plate 71 connected above one end of the mounting bracket 1, a third lifting cylinder 72 mounted on one side of the second mounting plate 71, and a second lifting plate 73 connected to the third lifting cylinder 72; one end of the second lifting plate 73 extends above the positioning fixture 2, and a clamping cylinder 74 is also mounted at the bottom of one end of the second lifting plate 73; the clamping cylinder 74 also drives two clamping blocks 75. After the product is placed on the positioning fixture 2, the third lifting cylinder 72 can drive the second lifting plate 73 to descend to the product testing end, and then the clamping cylinder 74 drives the two clamping blocks 75 to move closer to each other to clamp and limit the product testing end.

[0020] Preferably, a buffer pad 76 is connected to each of the two clamping blocks 75 on opposite sides; and a semi-circular slot is formed on each of the two buffer pads 76 on opposite sides. The buffer pads 76 serve to buffer and protect the product under test when clamping it. In this embodiment, the test end of the product is circular, and the semi-circular slot can match the shape of the output end of the product under test, increasing the contact area between the product and the buffer pad and improving the clamping strength.

[0021] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An airtightness testing device, characterized in that, The device includes a mounting bracket, a positioning fixture connected to the lower part of one side of the mounting bracket, and a first lifting mechanism connected to the upper part of one side of the mounting bracket. The first lifting mechanism is driven to connect to a first lifting seat, and a second lifting mechanism is also installed on the first lifting seat. The second lifting mechanism is driven to connect to a first lifting plate, and one end of the first lifting plate extends above the positioning fixture. A first pressure block is also installed at one end of the first lifting plate, and a sealing plug is connected to the bottom of the first pressure block. An air outlet is provided at the bottom of the sealing plug, and an air source connector communicating with the air outlet is installed on one side of the first pressure block. A product clamping mechanism for clamping and limiting the product is also installed at one end of the mounting bracket above the positioning fixture.

2. The airtightness testing device according to claim 1, characterized in that, The first lifting mechanism includes a first fixed block connected to the upper part of one side of the mounting bracket, a first lifting cylinder mounted vertically on the first fixed block, and a first slide rail assembly arranged vertically on the upper part of one side of the mounting bracket; the first lifting seat includes a first connecting seat; the first connecting seat is slidably arranged on the first slide rail assembly and connected to the first lifting cylinder, and the top of the first connecting seat is also connected to a first mounting plate; the second lifting mechanism is mounted on the bottom of the first mounting plate.

3. The airtightness testing device according to claim 2, characterized in that, The second lifting mechanism includes a second lifting cylinder installed at the bottom of the first mounting plate, and the first lifting plate is connected to the output shaft of the second lifting cylinder.

4. The airtightness testing device according to claim 3, characterized in that, One side of the mounting bracket is located below the first slide rail assembly and is also connected to a first limiting plate, with the first lifting plate located above the first limiting plate.

5. The airtightness testing device according to claim 1, characterized in that, The sealing plug is also fitted with a sealing ring.

6. The airtightness testing device according to claim 1, characterized in that, The product clamping mechanism includes a second mounting plate connected to one end of the mounting bracket, a third lifting cylinder mounted on one side of the second mounting plate, and a second lifting plate connected to the third lifting cylinder; one end of the second lifting plate extends above the positioning fixture, and a clamping cylinder is also installed at the bottom of one end of the second lifting plate; the clamping cylinder also drives two clamping blocks.

7. The airtightness testing device according to claim 6, characterized in that, Each of the two clamping blocks is also connected to a buffer pad on its opposite side.

8. The airtightness testing device according to claim 7, characterized in that, Each of the two buffer pads also has a semi-circular slot on one side.

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