Shock absorber production air tightness detection tool

Abstract

The utility model discloses an air tightness detection tool for damper production, and relates to the technical field of air tightness detection. The device comprises a shell and a partition plate, the inner wall of the shell is fixedly connected with the partition plate, the top of the partition plate is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first threaded rod, and the end, away from the first motor, of the first threaded rod is movably connected with a first limiting block through a bearing; the bottom of the first limiting block is fixedly connected with the top of the partition plate, the surface of the first threaded rod is in threaded connection with a first threaded sleeve, and the top of the first threaded sleeve is fixedly connected with a first fixing plate. The first motor is started, the first motor drives the first threaded sleeve to move in a transmission mode, the first limiting block limits the movement track of the first threaded sleeve, the stability of the threaded sleeve in the moving process is improved, the first threaded sleeve moves to drive the first fixing plate to move, and the first fixing plate fixes a shock absorber.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, and in particular to an airtightness testing fixture for shock absorber production. Background Technology

[0002] Shock absorbers are used to suppress the oscillations caused by the rebound of the spring after absorbing shock and the impact from the road surface. They are widely used in automobiles to accelerate the attenuation of vibrations in the chassis and body, thereby improving the ride smoothness of the car. When driving over uneven roads, although the shock-absorbing spring can filter out the vibrations of the road surface, the spring itself will still have reciprocating motion. Shock absorbers are used to suppress this spring bounce.

[0003] However, existing shock absorber airtightness testing devices are difficult to effectively fix in different models and sizes of shock absorbers during testing, and are prone to falling off during the testing process, thus increasing the difficulty of testing and failing to meet current market demands. Therefore, we provide a shock absorber manufacturing airtightness testing fixture to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling for testing the air tightness of shock absorbers during production. By cooperating with the first fixing plate, the first fixing block, the second fixing block and the third fixing block, the problem of difficulty in fixing shock absorbers of different models and sizes, as well as the problem of shock absorbers easily falling off during testing, is solved.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a tooling for testing the air tightness of shock absorbers, including a housing and a partition. The inner wall of the housing is fixedly connected to the partition. A first motor is fixedly connected to the top of the partition. A first threaded rod is fixedly connected to the output end of the first motor. A first limiting block is movably connected to the end of the first threaded rod away from the first motor through a bearing. The bottom of the first limiting block is fixedly connected to the top of the partition. A first threaded sleeve is threadedly connected to the surface of the first threaded rod. A first fixing plate is fixedly connected to the top of the first threaded sleeve.

[0007] The top of the partition plate has a first sliding groove on both sides. A first sliding block is installed inside the first sliding groove. A second motor and a second limiting block are fixedly connected to the top of the first sliding block. A second threaded rod is fixedly connected to the output end of the second motor. The end of the second threaded rod away from the second motor is movably connected to the second limiting block through a bearing. A second threaded sleeve is threadedly connected to the surface of the second threaded rod. A first fixing block is fixedly connected to the top of the second threaded sleeve and the top of the second limiting block. A first electric telescopic rod is fixedly connected to the top of the second threaded sleeve and the top of the second limiting block on the side away from the first fixing block. A first connecting block is fixedly connected to the top of the first electric telescopic rod. A second fixing block is fixedly connected to the side opposite to the first connecting block.

[0008] By adopting the above technical solution, the first motor is started, and the first motor drives the first threaded sleeve to move. The first limiting block limits the movement trajectory of the first threaded sleeve, improving the stability of the threaded sleeve during movement. The movement of the first threaded sleeve drives the first fixing plate to move, and the first fixing plate fixes the shock absorber. The second motor is started, and the second motor drives the first fixing block to move. The first electric telescopic rod is started, and the first telescopic rod drives the second fixing block to move. The first fixing block and the second fixing block cooperate to fix the shock absorber. The first sliding groove cooperates with the first slider so that after the first fixing block and the second fixing block are fixed, the shock absorber can be moved to fit tightly against the air hole to avoid loosening.

[0009] The present invention is further configured such that a second sliding groove is provided on the top of the partition, and a second slider is fixedly connected to the bottom of the first fixed plate, and the second slider is slidably connected to the second sliding groove.

[0010] By adopting the above technical solution, the movement of the first fixed plate drives the movement of the second slider. The second slide and the second slider work together to limit the movement trajectory of the first fixed plate, while also providing a certain support and increasing stability.

[0011] The present invention is further configured such that a second electric telescopic rod is fixedly connected to the inner wall of the housing, a first connecting plate is fixedly connected to the output end of the second electric telescopic rod, a first through groove is provided inside the first connecting plate, a rotating rod is provided through the first through groove, and a third fixing block is fixedly connected to the end of the rotating rod away from the inner wall of the housing.

[0012] By adopting the above technical solution, the second electric telescopic rod is activated, which drives the first connecting plate to move. The movement of the first moving plate drives the rotating rod to move, and the movement of the rotating rod drives the third fixed block to move, which is adjusted according to the different positions of the air-filled end of the shock absorber.

[0013] The present invention is further configured such that an air pump is fixedly connected to the bottom of the inner cavity of the shell, the output end of the air pump is connected to an air inflation pipe, an air pressure detector is fixedly connected to the inner cavity of the third fixed block, the air pressure detector is fixedly connected to the air inflation pipe, a second through groove is opened inside the partition, and the air inflation pipe passes through the second through groove and is fixedly connected to the third fixed block.

[0014] By adopting the above technical solution, the air pump is started, and the air pump inflates the air inflator, which in turn inflates the shock absorber. When the shock absorber's air pressure reaches the predetermined value, the inflation stops. At this time, the shock absorber, the air inflator, and the air pressure detector work together to form a sealed space. The air pressure detector detects the internal air pressure of the shock absorber. When the air pressure remains stable for a period of time, it indicates that the shock absorber's sealing performance meets the requirements.

[0015] The present invention is further configured such that a control panel is fixedly connected to the bottom of the inner cavity of the housing, and the control panel is electrically connected to the air pump, the air pressure detector, the first motor, the second motor, the first electric telescopic rod and the second electric telescopic rod.

[0016] By adopting the above technical solution, the control panel controls the fixing mechanism to fix the shock absorber, controls the air pump to inflate the shock absorber, and works with the air pressure detector to detect the internal air pressure of the shock absorber after inflation, so as to detect problems in time.

[0017] The present invention is further configured such that a power source is fixedly connected to the bottom of the inner cavity of the housing on the side away from the control panel, and a charging slot is formed on the surface of the power source.

[0018] By adopting the above technical solution, the power supply provides power to the control panel, the first motor, the second motor, the first electric telescopic rod, the second electric telescopic rod, the air pump, and the air pressure detector, and charges the power supply through the charging slot.

[0019] The present invention is further configured such that a support leg is fixedly connected to the bottom of the housing, a base plate is fixedly connected to the bottom of the support leg, and anti-slip particles are provided on the surface of the base plate.

[0020] By adopting the above technical solution, the outriggers and base plate work together to prevent the device from directly contacting the ground and causing wear. The base plate increases the contact area between the outriggers and the support surface, and the anti-slip particles increase the friction between the base plate and the support surface, further improving the stability of the device during use.

[0021] The present invention is further provided that the top of the housing is movably connected to a cover plate via a hinge, and the cover plate is made of transparent plastic.

[0022] By adopting the above technical solution, after the shock absorber is fixed, the cover plate is closed, and the transparent plastic allows for direct observation of the shock absorber's condition, preventing external factors from affecting the fixing of the shock absorber and providing a certain degree of protection.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model starts the first motor, which drives the first threaded sleeve to move. The first limiting block limits the movement trajectory of the first threaded sleeve, improving the stability of the threaded sleeve during movement. The movement of the first threaded sleeve drives the first fixing plate to move, and the first fixing plate fixes the shock absorber. Then, the second motor starts, which drives the first fixing block to move. The first electric telescopic rod starts, which drives the second fixing block to move. The first fixing block and the second fixing block cooperate to fix the shock absorber. The first sliding groove cooperates with the first slider so that after the first fixing block and the second fixing block are fixed, the shock absorber can be moved to fit tightly against the air hole to prevent loosening.

[0025] 2. This utility model activates the second electric telescopic rod, which drives the first connecting plate to move. The movement of the first moving plate drives the rotating rod to move, and the movement of the rotating rod drives the third fixed block to move. Adjustments are made according to the different positions of the shock absorber's inflation end. The inflation pump is then activated, which inflates the inflation pipe, which inflates the shock absorber. Inflation stops when the shock absorber's air pressure reaches the predetermined value. At this time, the shock absorber, inflation pipe, and air pressure detector work together to form a sealed space. The air pressure detector detects the internal air pressure of the shock absorber. When the air pressure remains stable for a period of time, it indicates that the shock absorber's sealing performance meets the requirements. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0027] Figure 1 A three-dimensional structural view of a shock absorber manufacturing airtightness testing fixture;

[0028] Figure 2 This is a structural diagram of the first fixing plate, the first fixing block, the second fixing block, and the third fixing block in a shock absorber manufacturing airtightness testing fixture;

[0029] Figure 3 A structural diagram of the housing in a shock absorber manufacturing airtightness testing fixture;

[0030] Figure 4 This is a diagram showing the internal structure of the third fixing block in a shock absorber manufacturing airtightness testing fixture.

[0031] Figure 5 This is a structural diagram of the second electric telescopic rod and the first connecting plate in a shock absorber manufacturing airtightness testing fixture.

[0032] In the attached diagram: 1. Housing; 2. Partition plate; 3. First motor; 4. First threaded rod; 5. First limiting block; 6. First threaded sleeve; 7. First fixing plate; 8. First sliding groove; 9. First slider; 10. Second motor; 11. Second limiting block; 12. Second threaded rod; 13. Second threaded sleeve; 14. First fixing block; 15. First electric telescopic rod; 16. First connecting block; 17. Second fixing block; 18. Second sliding groove; 19. Second slider; 20. Second electric telescopic rod; 21. First connecting plate; 22. First through groove; 23. Rotating rod; 24. Third fixing block; 25. Air pump; 26. Air inflator; 27. Air pressure detector; 28. Second through groove; 29. ​​Control panel; 30. Power supply; 31. Charging slot; 32. Support leg; 33. Base plate; 34. Cover plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Specific Implementation Example 1

[0035] Please see Figures 1-5 This utility model is a tooling for testing the air tightness of shock absorber production, including a housing 1 and a partition 2. The inner wall of the housing 1 is fixedly connected to the partition 2. A first motor 3 is fixedly connected to the top of the partition 2. A first threaded rod 4 is fixedly connected to the output end of the first motor 3. A first limiting block 5 is movably connected to the end of the first threaded rod 4 away from the first motor 3 through a bearing. The bottom of the first limiting block 5 is fixedly connected to the top of the partition 2. A first threaded sleeve 6 is threadedly connected to the surface of the first threaded rod 4. A first fixing plate 7 is fixedly connected to the top of the first threaded sleeve 6.

[0036] Both sides of the top of the partition 2 are provided with first sliding grooves 8. The first sliding grooves 8 are provided with first sliders 9. The top of the first sliders 9 is fixedly connected to a second motor 10 and a second limiting block 11. The output end of the second motor 10 is fixedly connected to a second threaded rod 12. The end of the second threaded rod 12 away from the second motor 10 is movably connected to the second limiting block 11 through a bearing. The surface of the second threaded rod 12 is threadedly connected to a second threaded sleeve 13. The top of the second threaded sleeve 13 and the top of the second limiting block 11 are both fixedly connected to a first fixing block 14. The top of the second threaded sleeve 13 and the top of the second limiting block 11 away from the first fixing block 14 are both fixedly connected to a first electric telescopic rod 15. The top of the first electric telescopic rod 15 is fixedly connected to a first connecting block 16. The opposite side of the first connecting block 16 is fixedly connected to a second fixing block 17.

[0037] Specifically: The first motor 3 is started, and the first motor 3 drives the first threaded sleeve 6 to move. The first limit block 5 limits the movement trajectory of the first threaded sleeve 6 to improve the stability of the threaded sleeve during movement. The movement of the first threaded sleeve 6 drives the first fixing plate 7 to move. The first fixing plate 7 fixes the shock absorber. The second motor 10 is started, and the second motor 10 drives the first fixing block 14 to move. The first electric telescopic rod 15 is started, and the first telescopic rod drives the second fixing block 17 to move. The first fixing block 14 and the second fixing block 17 cooperate to fix the shock absorber. The first sliding groove 8 cooperates with the first sliding block 9 so that after the first fixing block 14 and the second fixing block 17 are fixed, the shock absorber can be moved to fit tightly against the air hole to prevent loosening. Specific Implementation Example 2

[0039] Please see Figures 1-5 Based on the first specific embodiment, a second sliding groove 18 is provided on the top of the partition 2, a second slider 19 is fixedly connected to the bottom of the first fixed plate 7, the second slider 19 is slidably connected to the second sliding groove 18, a second electric telescopic rod 20 is fixedly connected to the inner wall of the housing 1, a first connecting plate 21 is fixedly connected to the output end of the second electric telescopic rod 20, a first through groove 22 is provided inside the first connecting plate 21, a rotating rod 23 is provided through the first through groove 22, a third fixing block 24 is fixedly connected to the end of the rotating rod 23 away from the inner wall of the housing 1, an air pump 25 is fixedly connected to the bottom of the inner cavity of the housing 1, an air pump 25 is connected to the output end of the air pump 25 and an air inflation pipe 26 is connected to the output end of the air pump 25, and a pressure detector 27 is fixedly connected to the inner cavity of the third fixing block 24. The pressure detector 27 and the air inflation pipe 26 are connected to the bottom of the inner cavity of the housing 1. 6. Fixed connection: A second through groove 28 is provided inside the partition 2. The inflation tube 26 passes through the second through groove 28 and is fixedly connected to the third fixing block 24. A control panel 29 is fixedly connected to the bottom of the inner cavity of the housing 1. The control panel 29 is electrically connected to the inflation pump 25, the air pressure detector 27, the first motor 3, the second motor 10, the first electric telescopic rod 15, and the second electric telescopic rod 20. A power supply 30 is fixedly connected to the bottom of the inner cavity of the housing 1 on the side away from the control panel 29. A charging slot 31 is provided on the surface of the power supply 30. A support leg 32 is fixedly connected to the bottom of the housing 1. A base plate 33 is fixedly connected to the bottom of the support leg 32. The surface of the base plate 33 is provided with anti-slip particles. A cover plate 34 is movably connected to the top of the housing 1 through a hinge. The cover plate 34 is made of transparent plastic.

[0040] Specifically: The movement of the first fixed plate 7 drives the movement of the second slider 19. The second slide groove 18 and the second slider 19 cooperate to limit the movement trajectory of the first fixed plate 7, while also providing some support and increasing stability. The second electric telescopic rod 20 is activated, which drives the first connecting plate 21 to move. The movement of the first moving plate drives the rotating rod 23 to move, and the movement of the rotating rod 23 drives the third fixed block 24 to move. Adjustments are made according to the different positions of the shock absorber's inflation end. The air pump 25 is activated, which inflates the inflation pipe 26. The inflation pipe 26 inflates the shock absorber. When the shock absorber's air pressure reaches the predetermined value, inflation stops. At this time, the shock absorber, inflation pipe 26, and air pressure detector 27 cooperate to form a sealed space. The air pressure detector 27 detects the internal air pressure of the shock absorber. When the air pressure remains stable for a period of time, it indicates that the shock absorber's sealing performance meets the requirements. Control panel 2 9. The control fixing mechanism secures the shock absorber, and the air pump 25 inflates the shock absorber. The air pressure detector 27, in conjunction with the control system, detects the internal air pressure of the shock absorber after inflation, allowing for timely detection of problems. The power supply 30 supplies power to the control panel 29, the first motor 3, the second motor 10, the first electric telescopic rod 15, the second electric telescopic rod 20, the air pump 25, and the air pressure detector 27. The power supply 30 is charged through the charging slot 31. The outriggers 32 and the base plate 33 work together to prevent the device from directly contacting the ground and causing wear. The base plate 33 increases the contact area between the outriggers 32 and the supporting surface, and the anti-slip particles increase the friction between the base plate 33 and the supporting surface, further improving the stability of the device during use. After the shock absorber is secured, the cover plate 34 is closed. The transparent plastic allows for direct observation of the shock absorber's condition, preventing external factors from affecting its fixation and providing a certain degree of protection.

[0041] The working principle of this utility model is as follows: The first motor 3 is started, which drives the first threaded sleeve 6 to move. The first limiting block 5 limits the movement trajectory of the first threaded sleeve 6, improving the stability of the threaded sleeve during movement. The movement of the first threaded sleeve 6 drives the first fixing plate 7 to move, and the first fixing plate 7 fixes the shock absorber. The second motor 10 is started, which drives the first fixing block 14 to move. The first electric telescopic rod 15 is started, which drives the second fixing block 17 to move. The first fixing block 14 and the second fixing block 17 cooperate to fix the shock absorber. The first sliding groove 8 cooperates with the first sliding block 9 so that after the first fixing block 14 and the second fixing block 17 are fixed, the shock absorber can be moved to fit tightly against the air hole to prevent loosening.

[0042] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A shock absorber production air tightness detection tooling, comprising a shell (1) and a partition plate (2), characterized in that: The inner wall of the shell (1) is fixedly connected with the partition plate (2), the top of the partition plate (2) is fixedly connected with the first motor (3), the output end of the first motor (3) is fixedly connected with the first threaded rod (4), the end, away from the first motor (3), of the first threaded rod (4) is movably connected with the first limiting block (5) through a bearing, the bottom of the first limiting block (5) is fixedly connected with the top of the partition plate (2), the surface of the first threaded rod (4) is threadedly connected with the first threaded sleeve (6), and the top of the first threaded sleeve (6) is fixedly connected with the first fixed plate (7). The two sides of the top of the partition plate (2) are both provided with the first sliding groove (8), the inside of the first sliding groove (8) is provided with the first sliding block (9), the top of the first sliding block (9) is fixedly connected with the second motor (10) and the second limiting block (11), the output end of the second motor (10) is fixedly connected with the second threaded rod (12), the end, away from the second motor (10), of the second threaded rod (12) is movably connected with the second limiting block (11) through a bearing, the surface of the second threaded rod (12) is threadedly connected with the second threaded sleeve (13), the top of the second threaded sleeve (13) and the top of the second limiting block (11) are both fixedly connected with the first fixed block (14), the top of the second threaded sleeve (13) and the top of the second limiting block (11) are both fixedly connected with the first electric telescopic rod (15) on the side, away from the first fixed block (14), the top of the first electric telescopic rod (15) is fixedly connected with the first connecting block (16), and the opposite side of the first connecting block (16) is fixedly connected with the second fixed block (17).

2. The airtightness detection tool for shock absorber production according to claim 1, characterized in that: The top of the partition plate (2) is provided with the second sliding groove (18), the bottom of the first fixed plate (7) is fixedly connected with the second sliding block (19), and the second sliding block (19) is slidably connected with the second sliding groove (18).

3. The airtightness detection tool for shock absorber production according to claim 1, characterized in that: The inner wall of the shell (1) is fixedly connected with the second electric telescopic rod (20), the output end of the second electric telescopic rod (20) is fixedly connected with the first connecting plate (21), the inside of the first connecting plate (21) is provided with the first through groove (22), and the inside of the first through groove (22) is penetratingly provided with the rotating rod (23).

4. The airtightness detection tool for shock absorber production according to claim 3, characterized in that: The bottom of the inner cavity of the shell (1) is fixedly connected with the air pump (25), the output end of the air pump (25) is communicated with the air pipe (26), the inner cavity of the third fixed block (24) is fixedly connected with the air pressure detector (27), the air pressure detector (27) is fixedly connected with the air pipe (26), the inside of the partition plate (2) is provided with the second through groove (28), and the air pipe (26) is penetratingly connected with the third fixed block (24) through the second through groove (28).

5. The air tightness detection tool for shock absorber production according to claim 1, characterized in that: The bottom of the inner cavity of the shell (1) is fixedly connected with a control panel (29), and the control panel (29) is electrically connected with the air pump (25), the air pressure detector (27), the first motor (3), the second motor (10), the first electric telescopic rod (15) and the second electric telescopic rod (20).

6. The air tightness detection tool for shock absorber production according to claim 1, characterized in that: The bottom of the inner cavity of the shell (1) is fixedly connected with a control panel (29), and the control panel (29) is electrically connected with the air pump (25), the air pressure detector (27), the first motor (3), the second motor (10), the first electric telescopic rod (15) and the second electric telescopic rod (20).

7. The gas tightness detection tool for shock absorber production according to claim 1, characterized in that: The bottom of the shell (1) is fixedly connected with a support leg (32), the bottom of the support leg (32) is fixedly connected with a bottom plate (33), and the surface of the bottom plate (33) is provided with anti-skid particles.

8. The air tightness detection tool for shock absorber production according to claim 1, characterized in that: The top of the shell (1) is hingedly connected with a cover plate (34), and the material of the cover plate (34) is transparent plastic.

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