Flexible leakage testing device for shock absorber

Abstract

The utility model relates to the technical field of automobile shock absorbers, in particular to a flexible leakage testing device for a shock absorber, which comprises a rack, a dry type leakage testing instrument and an electromagnetic valve, a remodeling positioning strip is arranged above the rack, a guide rail is arranged on one side of the remodeling positioning strip, a butt-clamping centering mechanism is connected onto the guide rail in a sliding manner, and the butt-clamping centering mechanism is connected with the dry type leakage testing instrument. The butt clamp centering mechanism is fixed with the remodeling positioning strip through the drawing pin, one end of the guide rail is provided with the pressing cylinder structure, the pressing cylinder structure is fixed on the rack, the other end of the guide rail is in sliding connection with the leakage testing core rod structure, the leakage testing core rod structure is connected with the electromagnetic valve, and the electromagnetic valve is connected with the dry type leakage testing instrument. A carrying clamping jaw and a tool clamp can be rapidly replaced and remodeled to achieve the collinear production capacity of more products, automatic monitoring of temperature, rust prevention, liquid level, time and the like is achieved through air cooling and water cooling, the time for waiting for feeding is saved through double stations for leakage testing, robot and manual double-interface switching can be achieved during discharging, and the yield is better guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile shock absorbers, in particular to a flexible leakage testing device for shock absorbers. Background Art

[0002] As the market demands increasingly higher sealing performance for shock absorbers, dry leak testers are being introduced more and more frequently. Dry leak testers also have particularly high requirements for temperature and measurement time, so they need to be combined with air cooling and water cooling to meet temperature conditions before testing. Integrating these mechanisms is an essential step in the leak testing process. Traditional dry leak testers require at least two people to spend more than 25 seconds to cool the shock absorber to the required temperature, while water cooling stations often rely on manual measurement of water temperature, liquid level, and anti-rust effect. This is inefficient and requires workers to frequently contact the workpiece, posing significant safety risks. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a flexible leak testing device for a shock absorber. The device is carried by a robot and only requires technicians to load the materials. The device automatically performs air cooling, water cooling, leak testing, and unloading. At the same time, temperature sensors and sugar meters are used for monitoring during air cooling and water cooling. The water level is monitored in real time. The double-station leak testing machine is switched alternately to save loading time. Finally, the product is transported to the unloading station for further transportation and inspection.

[0004] To achieve the above-mentioned purpose, a flexible leak test device for a shock absorber is designed, comprising a frame, a dry leak tester, and a solenoid valve. A profile changing positioning bar is provided above the frame, a guide rail is provided on one side of the profile changing positioning bar, a clamping and centering mechanism is slidably connected to the guide rail, and the clamping and centering mechanism is fixed to the profile changing positioning bar by a pull pin. A clamping cylinder structure is provided at one end of the guide rail, and the clamping cylinder structure is fixed to the frame. The other end of the guide rail is slidably connected to the leak test core rod structure, the leak test core rod structure is connected to the solenoid valve, and the solenoid valve is connected to the dry leak tester.

[0005] The leak testing device is a double-station structure.

[0006] There are two guide rails in total.

[0007] The clamping and centering mechanism is a double-claw claw-shaped structure, and there are two clamping and centering mechanisms in total, and two clamping claws are respectively provided at the top end.

[0008] A shock absorber workpiece is fixed on the clamping and centering mechanism, and one end of the shock absorber workpiece is inserted into the pressing cylinder structure.

[0009] The leak testing core rod hungry structure is connected to the leak testing core rod transplanting cylinder.

[0010] Compared with the existing technology, the utility model can realize single-person loading, and the handling claws and tooling fixtures can be quickly replaced to achieve the production capacity of more products on the same line. Through air cooling and water cooling, automatic monitoring of temperature, rust prevention, liquid level, time, etc. can be achieved. The double station for leak testing saves waiting time for loading, and unloading can realize dual interface switching between robot and manual, which is more guaranteed for the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the overall schematic diagram of the leak test device.

[0012] Figure 2 Local view of the leak test device Figure 1 .

[0013] Figure 3 Local view of the leak test device Figure 2 .

[0014] See also Figures 1 to 3 , 1 is the frame, 2 is the mold changing positioning bar, 3 is the guide rail, 4 is the clamping and centering mechanism, 4.1 is the clamping claw, 5 is the pulling pin, 6 is the clamping cylinder structure, 7 is the leak test core rod structure, 8 is the solenoid valve, 9 is the dry leak tester, 10 is the leak test core rod transplanting cylinder, and 11 is the shock absorber workpiece. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figure 1 As shown, a mold changing positioning strip 2 is provided above the frame 1, and a guide rail 3 is provided on one side of the mold changing positioning strip 2. A clamping and centering mechanism 4 is slidably connected to the guide rail 3, and the clamping and centering mechanism 4 is fixed to the mold changing positioning strip 2 through a pulling pin 5. A clamping cylinder structure 6 is provided at one end of the guide rail 3, and the clamping cylinder structure 6 is fixed on the frame 1. The other end of the guide rail 3 is slidably connected to the leak test core rod structure 7, and the leak test core rod structure 7 is connected to the solenoid valve 8. The solenoid valve 8 is connected to the dry leak tester 9. The dry leak tester 9 inflates, balances, saturates, measures, and exhausts the inner cavity of the shock absorber workpiece 11 to measure the air tightness of the shock absorber workpiece 11. The solenoid valve 8 plays a role in switching the air supply path of the dry leak tester 9.

[0017] The leak test device has a double-station structure. Two identical leak test stations are controlled by the solenoid valve 8 to perform leak test alternately at the two stations. The two stations are switched to cover each other, and the leak test process and the loading time can be realized. Finally, a production cycle of less than 20 seconds can be achieved for single-person loading.

[0018] There are two guide rails 3 in total, and the guide rails 3 serve as guides for the leak testing core rod structure 7 .

[0019] The clamping and centering mechanism 4 is a double-claw claw-shaped structure. There are two clamping and centering mechanisms 4 in total, and two clamping claws 4.1 are respectively provided at the top end.

[0020] A shock absorber workpiece 11 is fixed on the clamping and centering mechanism 4 , and one end of the shock absorber workpiece 11 is inserted into the pressing cylinder structure 6 .

[0021] The leak testing core rod hungry structure 7 is connected to the leak testing core rod transferring cylinder 10 , and the leak testing core rod transferring cylinder 10 drives the leak testing core rod hungry structure 7 to slide on the guide rail 3 .

[0022] The specific implementation of the present utility model is as follows: the shock absorber workpiece 1 is transported to the leak testing device manually or by a manipulator, the shock absorber workpiece 1 is clamped and fixed by the clamping centering mechanism 4, one end of the shock absorber workpiece 1 is inserted into the clamping cylinder structure 6 for further fixation, the leak testing core rod transplanting cylinder 10 drives the leak testing core rod structure 7 to slide forward and insert it into the shock absorber workpiece 1, after positioning, the dry leak tester 9 inflates the interior of the shock absorber workpiece 1 through one of the air paths and determines whether the workpiece is leaking by measuring the leakage rate. During the leak testing process, people The worker or manipulator fixes the new shock absorber workpiece 2 on the second leak test station. After the shock absorber workpiece 1 completes the leak test, the solenoid valve 8 switches the air circuit, and the new shock absorber workpiece 2 is leak tested. At this time, the shock absorber workpiece is unloaded, and the leak test time covers the loading and unloading time. At the same time, the pulling pin 5 can be quickly disassembled and installed to realize the rapid replacement and remodeling of the clamping and centering mechanism 4. It can be compatible with shock absorber workpieces 11 of various lengths, thicknesses and positions of spring disks. This structure can meet the requirements of low-cost automation and greatly improve work efficiency.

Claims

1. A flexible leak test device for a shock absorber, comprising a frame, a dry leak tester, and a solenoid valve, characterized in that: A change-type positioning strip (2) is provided above the frame (1), a guide rail (3) is provided on one side of the change-type positioning strip (2), a clamping and centering mechanism (4) is slidably connected to the guide rail (3), the clamping and centering mechanism (4) is fixed to the change-type positioning strip (2) through a pull pin (5), a clamping cylinder structure (6) is provided at one end of the guide rail (3), the clamping cylinder structure (6) is fixed to the frame (1), the other end of the guide rail (3) is slidably connected to a leak test core rod structure (7), the leak test core rod structure (7) is connected to a solenoid valve (8), and the solenoid valve (8) is connected to a dry leak tester (9).

2. A flexible leak test device for a shock absorber according to claim 1, characterized in that: The leak testing device is a double-station structure.

3. The flexible leak test device for a shock absorber according to claim 1, characterized in that: There are two guide rails (3) in total.

4. A flexible leak test device for a shock absorber according to claim 1, characterized in that: The clamping and centering mechanism (4) is a double-claw claw-shaped structure, and there are two clamping and centering mechanisms (4) in total, each of which has two clamping claws (4.1) at the top.

5. The flexible leak test device for a shock absorber according to claim 1, characterized in that: A shock absorber workpiece (11) is fixed on the clamping and centering mechanism (4), and one end of the shock absorber workpiece (11) is inserted into the clamping cylinder structure (6).

6. The flexible leak test device for a shock absorber according to claim 1, characterized in that: The leak testing core rod structure (7) is connected to the leak testing core rod transplanting cylinder (10).

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