A high-precision intelligent air tightness testing machine

Abstract

This utility model discloses a high-precision intelligent airtightness testing machine, belonging to the field of airtightness testing. It includes: a workbench, a test chamber fixedly connected to the top of the workbench, and a top-out plate slidably connected to the inside of the test chamber. Two first-order connecting rods are arranged inside the test chamber, with a rotating plate fixedly connected to one side of each first-order connecting rod. A third-order connecting rod is rotatably connected between the two rotating plates, and a moving block is rotatably connected to the other end of the third-order connecting rod. A second-order connecting rod is rotatably connected to the other side of the first-order connecting rod, and the other end of the second-order connecting rod is rotatably connected to the bottom of the top-out plate. A groove adapted to the moving block is provided at the bottom of the fixed plate. This utility model has a reasonable structural design. Through the cooperation between the rotating frame, the second-order connecting rod, and the fixed plate, the top-out plate can raise and lower the test piece. This avoids the user repeatedly reaching into the device to place the test piece, facilitating the user's handling and further improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing, and in particular to a high-precision intelligent airtightness testing machine. Background Technology

[0002] The testing of airtightness depends on the specific requirements and conditions of the product or material being tested. The differential pressure method detects gas leaks by applying pressure to a closed system and observing pressure changes. Differential pressure testing uses a pressure gauge to measure pressure changes to determine the airtightness of a product or system. A high-precision intelligent airtightness testing machine is an instrument used to test whether a product or material has good airtightness. It is widely used in industries such as automotive manufacturing, electronics, and aerospace to test the airtightness of components, equipment, or products to ensure that they do not leak during use.

[0003] Existing airtightness testing machines typically require operators to place the test piece in a sealed space for testing. After testing, operators must then reach into the testing machine cavity to retrieve the test piece, which is inconvenient, time-consuming, and labor-intensive, affecting testing efficiency. Therefore, a high-precision intelligent airtightness testing machine is needed to improve these issues. Thus, we propose a high-precision intelligent airtightness testing machine to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision intelligent airtightness testing machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-precision intelligent airtightness testing machine includes: a workbench, a test chamber fixedly connected to the top of the workbench, a top plate slidably connected to the inner side of the test chamber, two first connecting rods arranged inside the test chamber, a rotating plate fixedly connected to one side of each first connecting rod, a third connecting rod rotatably connected between the two rotating plates, a moving block rotatably connected to the other end of the third connecting rod, a second connecting rod rotatably connected to the other side of the first connecting rod, the other end of the second connecting rod rotatably connected to the bottom of the top plate, a fixed plate fixedly connected to the inner side of the workbench, a groove adapted to the moving block being formed at the bottom of the fixed plate, the outer side of the moving block being slidably connected to the inner side of the groove, and a testing mechanism arranged outside the test chamber.

[0007] Preferably, the testing mechanism includes: a hair dryer, the bottom of which is fixedly connected to the top of the workbench, and the input end and output end of the hair dryer are respectively fixedly connected to a first tube and a second tube, and the other end of the first tube is fixedly connected to the inside of the test chamber, and a control valve and a pressure gauge are provided on the outside of the second tube, and a sealing plate is movably inserted into the inside of the test chamber.

[0008] Preferably, two vertical frames are fixedly connected to the top of the workbench, and a No. 1 motor is fixedly connected to the top of the vertical frames. A No. 1 screw is fixedly connected to the output end of the No. 1 motor. The outer side of the No. 1 screw is rotatably connected to the inner side of the vertical frame. A sliding hole is opened on the inner side of the vertical frame. A connecting block is slidably connected to the inner side of the sliding hole. The bottom of the connecting block is fixedly connected to the top of the sealing plate.

[0009] Preferably, a rotating frame is fixedly connected to one side of the first connecting rod, and the outer sides of the two rotating frames are respectively rotatably connected to the inner walls of the two sides of the test box.

[0010] Preferably, a shell is fixedly connected to one side of the test box, and a second motor is fixedly connected to one side of the shell. A first roller is fixedly connected to the output end of the second motor, and a worm is fixedly connected to the outer side of the first roller. A worm wheel meshes with the outer side of the worm, and a second screw is fixedly connected to the inner side of the worm wheel. The outer side of the second screw is threadedly connected to the inner side of the moving block.

[0011] Preferably, the outer side of the first roller is rotatably connected to the inner wall of one side of the outer casing.

[0012] In this utility model, a high-precision intelligent airtightness testing machine is described. The test piece is placed inside the device, and then the device is started to lower it. Then, the first motor is started, causing the first screw to start rotating. Immediately afterwards, the connecting block drives the sealing plate to move vertically. Then, the connecting block closes with the test chamber, and a sealing gasket is set on the contact surface between the two. Then, the blower is turned on to discharge the gas in the sealed test chamber through the second pipe. Then, the control valve is closed, and the reading on the pressure gauge is recorded. After standing for a period of time, if the reading on the pressure gauge remains unchanged;

[0013] In this invention, a high-precision intelligent airtightness testing machine is described. If the pressure gauge reading changes, it indicates a sealing problem with the test piece, causing air to escape and altering the pressure inside the test chamber. This results in the test piece failing the airtightness test. After testing, motor number two is started, causing roller number one to rotate, which in turn drives the worm gear. The worm then rotates, driving screw number two, causing the moving block to move horizontally. Then, connecting rod number three rotates, causing the rotating plate to continue rotating. Connecting rod number one then drives connecting rod number two to rotate, allowing the ejector plate to move vertically. The user can then automatically deliver the test piece using the device.

[0014] This utility model has a reasonable structural design. Through the cooperation between the rotating frame, the second connecting rod and the fixed plate, the ejector plate can lift and lower the test piece. This avoids the user having to repeatedly reach into the device to place the test piece, making it more convenient for the user to pick up and put down the test piece, and further improving the user's work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a high-precision intelligent airtightness testing machine proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural schematic diagram of a high-precision intelligent airtightness testing machine proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the rotating frame and the No. 3 connecting rod structure proposed in this utility model.

[0018] In the diagram: 1. Workbench; 2. Test box; 3. Link 1; 4. Link 2; 5. Ejector plate; 6. Rotating plate; 7. Link 3; 8. Moving block; 9. Fixed plate; 10. Sealing plate; 11. Screw 2; 12. Motor 2; 13. Blower; 14. Control valve; 15. Pressure gauge; 16. Screw 1; 17. Motor 1; 18. Connecting block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3A high-precision intelligent airtightness testing machine includes: a workbench 1, a test chamber 2 fixedly connected to the top of the workbench 1, an ejector plate 5 slidably connected to the inner side of the test chamber 2, two first connecting rods 3 arranged inside the test chamber 2, a rotating plate 6 fixedly connected to one side of the first connecting rod 3, a third connecting rod 7 rotatably connected between the two rotating plates 6, a moving block 8 rotatably connected to the other end of the third connecting rod 7, a second connecting rod 4 rotatably connected to the other side of the first connecting rod 3, and the other end of the second connecting rod 4 rotatably connected to the bottom of the ejector plate 5, a fixed plate 9 fixedly connected to the inner side of the workbench 1, a groove adapted to the moving block 8 opened at the bottom of the fixed plate 9, the outer side of the moving block 8 slidably connected to the inner side of the groove, and a testing mechanism arranged on the outer side of the test chamber 2.

[0021] In this embodiment, the testing mechanism includes: a blower 13, the bottom of which is fixedly connected to the top of the workbench 1, and the input and output ends of the blower 13 are respectively fixedly connected to a first tube and a second tube, and the other end of the first tube is fixedly connected to the inside of the test chamber 2, and a control valve 14 and a pressure gauge 15 are provided on the outside of the second tube, and a sealing plate 10 is movably inserted into the inside of the test chamber 2, and two vertical frames are fixedly connected to the top of the workbench 1, and a first motor 17 is fixedly connected to the top of the vertical frames, and a first screw 16 is fixedly connected to the output end of the first motor 17, and the outside of the first screw 16 is rotatably connected to the inside of the vertical frame, and a sliding hole is opened on the inside of the vertical frame, and a connecting block 18 is slidably connected to the inside of the sliding hole, and the bottom of the connecting block 18 is fixedly connected to the top of the sealing plate 10, which allows the sealing plate 10 to be closed.

[0022] In this embodiment, a rotating frame is fixedly connected to one side of the first connecting rod 3, and the outer sides of the two rotating frames are respectively rotatably connected to the inner walls of both sides of the test box 2. A shell is fixedly connected to one side of the test box 2, and a second motor 12 is fixedly connected to one side of the shell. A first roller is fixedly connected to the output end of the second motor 12, and a worm is fixedly connected to the outer side of the first roller. A worm wheel meshes with the outer side of the worm, and a second screw 11 is fixedly connected to the inner side of the worm wheel. The outer side of the second screw 11 is threadedly connected to the inner side of the moving block 8. The outer side of the first roller is rotatably connected to the inner wall of one side of the shell, which allows the first roller to rotate stably.

[0023] In this embodiment, during use, the test piece is placed inside the device, then the device is started to lower it. Then, motor 17 is started, causing screw 16 to rotate. Next, connecting block 18 drives sealing plate 10 to move vertically, closing connecting block 18 with test chamber 2, with a sealing gasket at the contact surface between them. Then, blower 13 is turned on to discharge gas from test chamber 2 through pipe 2. Then, control valve 14 is closed, and the reading on pressure gauge 15 is recorded. After a period of time, if the reading on pressure gauge 15 remains unchanged, the test piece has good sealing performance; if the reading on pressure gauge 15 remains unchanged, the test piece has good sealing performance. If the reading changes, it indicates a problem with the sealing of the test piece, causing air to escape from inside the test piece and altering the air pressure inside test chamber 2. The test piece's sealing performance is therefore unqualified. After the test is completed, motor 12 is started, causing roller 1 to rotate, which in turn drives the worm gear. The worm then rotates, driving screw 11 to rotate, causing moving block 8 to move horizontally. Then, connecting rod 7 rotates, causing rotating plate 6 to continue rotating. Connecting rod 3 then drives connecting rod 4 to rotate, allowing ejector plate 5 to move vertically. The user can then automatically deliver the test piece using the device.

[0024] The above provides a detailed description of the high-precision intelligent airtightness testing machine provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A high-precision intelligent airtightness testing machine, characterized in that, include: A workbench (1) is fixedly connected to a test box (2) on its top. A top plate (5) is slidably connected to the inner side of the test box (2). Two first connecting rods (3) are provided inside the test box (2). A rotating plate (6) is fixedly connected to one side of the first connecting rod (3). The same third connecting rod (7) is rotatably connected between the two rotating plates (6). A moving block (8) is rotatably connected to the other end of the third connecting rod (7). A second connecting rod (4) is rotatably connected to the other side of the first connecting rod (3). The other end of the second connecting rod (4) is rotatably connected to the bottom of the top plate (5). A fixed plate (9) is fixedly connected to the inner side of the workbench (1). A groove adapted to the moving block (8) is opened at the bottom of the fixed plate (9). The outer side of the moving block (8) is slidably connected to the inner side of the groove. A detection mechanism is provided on the outer side of the test box (2).

2. The high-precision intelligent airtightness testing machine according to claim 1, characterized in that, The testing mechanism includes: a hair dryer (13), the bottom of which is fixedly connected to the top of the workbench (1), and the input end and output end of the hair dryer (13) are respectively fixedly connected to a first tube and a second tube, and the other end of the first tube is fixedly connected to the inside of the test box (2), and a control valve (14) and a pressure gauge (15) are provided on the outside of the second tube, and a sealing plate (10) is movably inserted into the inside of the test box (2).

3. The high-precision intelligent airtightness testing machine according to claim 1, characterized in that, The workbench (1) has two vertical frames fixedly connected to the top, and a No. 1 motor (17) is fixedly connected to the top of the vertical frame. A No. 1 screw (16) is fixedly connected to the output end of the No. 1 motor (17). The outer side of the No. 1 screw (16) is rotatably connected to the inner side of the vertical frame. A sliding hole is opened on the inner side of the vertical frame. A connecting block (18) is slidably connected to the inner side of the sliding hole. The bottom of the connecting block (18) is fixedly connected to the top of the sealing plate (10).

4. The high-precision intelligent airtightness testing machine according to claim 1, characterized in that, One side of the first connecting rod (3) is fixedly connected to a rotating frame, and the outer sides of the two rotating frames are respectively rotatably connected to the inner walls of both sides of the test box (2).

5. The high-precision intelligent airtightness testing machine according to claim 1, characterized in that, The test box (2) is fixedly connected to a shell on one side, and a second motor (12) is fixedly connected to one side of the shell. A first roller is fixedly connected to the output end of the second motor (12), and a worm is fixedly connected to the outside of the first roller. A worm wheel is meshed on the outside of the worm, and a second screw (11) is fixedly connected to the inside of the worm wheel. The outside of the second screw (11) is threadedly connected to the inside of the moving block (8).

6. The high-precision intelligent airtightness testing machine according to claim 5, characterized in that, The outer side of the No. 1 roller is rotatably connected to the inner wall of one side of the outer shell.

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