Shock absorber leakage testing equipment

Abstract

The utility model relates to shock absorber leakage testing equipment which comprises a rack, a clamping mechanism and a leakage testing mechanism. The rack is provided with a plurality of leakage testing stations, the number of the clamping mechanisms and the number of the leakage testing mechanisms are matched with the number of the leakage testing stations, and the clamping mechanisms and the leakage testing mechanisms are arranged on the leakage testing stations; the clamping mechanism comprises a clamping assembly, and the clamping assembly comprises a first clamping arm and a second clamping arm which are oppositely arranged, a first clamping jaw and a second clamping jaw which are oppositely arranged, and a first clamping block and a second clamping block which are oppositely arranged; the clamping assembly is used for clamping the shock absorber; the leakage testing mechanism comprises a sealing pressure head and a lifting mechanism. The sealing pressure head is communicated with an air source, and a valve body is arranged at the communication position of the sealing pressure head and the air source. The lifting mechanism comprises a first driving piece and a lifting block, the first driving piece is connected with the lifting block, the lifting block is movably arranged on the leakage testing station in the height direction of the rack, and the lifting block is connected with the sealing pressure head; the shock absorber leakage test equipment can be provided with a plurality of leakage test stations, so that the efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of shock absorber detection, and in particular to a shock absorber leakage testing device. Background Art

[0002] Chinese patent CN215217972U discloses a shock absorber air leak test tool, including a positioning support mechanism and a clamping mechanism; the clamping mechanism is located above the positioning support mechanism; the positioning support mechanism includes a fixed sleeve, an adjusting screw and a positioning support seat, the adjusting screw is threadedly engaged with the inner hole of the fixed sleeve, the positioning support seat is fixed to the upper end of the adjusting screw and a positioning recess is provided at the center of its top surface; the clamping mechanism includes a fixed seat, two clamping arms and two tension springs, the middle parts of the two clamping arms are rotatably mounted on the fixed seat and are symmetrically distributed; two clamping grooves are symmetrically provided on the facing surfaces of the front ends of the two clamping arms.

[0003] The above patent can be used to more quickly position and automatically clamp the shock absorber on an air leak tester during leak testing, so that the test pressure head can be accurately pressed down and into place, thereby ensuring the accuracy of the test results.

[0004] However, the above patent still has the following defects:

[0005] The above patent uses a tension spring to connect the clamp arm, and uses the elastic potential energy of the tension spring as the kinetic energy of the clamp arm to clamp the shock absorber. Therefore, the setting of the tension spring requires a certain space to ensure that the tension spring can be stretched or compressed, and the clamping effect of the clamp arm will change with the elasticity of the tension spring, making the above clamping tooling unsuitable for multi-station leak testing equipment; and if the elastic limit of the tension spring is exceeded during the clamping process, the clamping effect will become worse and worse, so the quality of the tension spring needs to be checked frequently and it needs to be replaced regularly, which affects work efficiency and increases the cost of leak testing. Utility Model Content

[0006] In order to solve the problems existing in the above-mentioned prior art, the present disclosure aims to provide a shock absorber leakage testing device to solve the problems of the prior art that the work efficiency is affected and the leakage testing cost is high.

[0007] The shock absorber leak testing device disclosed herein comprises a frame;

[0008] The frame has a plurality of leak testing stations, each of which is provided with a clamping mechanism and a leak testing mechanism;

[0009] The clamping mechanism includes a clamping assembly, a first driving member and a second driving member; the clamping assembly includes a first clamping arm and a second clamping arm arranged opposite to each other, a first clamping jaw and a second clamping jaw arranged opposite to each other, and a first clamping block and a second clamping block arranged opposite to each other; the first clamping arm is connected to the first driving member, and the second clamping arm is connected to the second driving member; the first clamping jaw is rotatably connected to the first clamping arm or the second clamping arm, and the second clamping jaw is rotatably connected to the second clamping arm or the first clamping arm; the first clamping block is connected to the first clamping jaw or the second clamping jaw, and the second clamping block is connected to the second clamping jaw or the first clamping jaw; the clamping assembly is used to clamp the shock absorber;

[0010] The leak testing mechanism includes a sealing pressure head, an air source and a lifting mechanism, wherein the sealing pressure head is connected to the air source and a valve body is provided at the connection point between the sealing pressure head and the air source;

[0011] The lifting mechanism includes a third driving member and a lifting block, the third driving member is connected to the lifting block, the lifting block is movably arranged on the leak testing station along the height direction of the frame, and the lifting block is connected to the sealing pressure head.

[0012] Preferably, the shock absorber leak test device further comprises a controller, and the controller is respectively connected to the first driving member, the second driving member and the third driving member by signals.

[0013] Preferably, the shock absorber leak test device further comprises a start switch, and the start switch is connected to the controller signal.

[0014] Preferably, the clamping mechanism further comprises a light sensor, which is provided on the first clamping block and / or the second clamping block, and is signal-connected to the controller.

[0015] Preferably, the gas source is arranged in the frame, and maintenance windows are provided on both sides of the frame at positions corresponding to the gas source, and maintenance doors are rotatably provided on the maintenance windows.

[0016] Preferably, the rack is provided with an inspection window below the inspection door, the inspection window is connected to a transparent cover, and a ventilation hole is provided at one position of the transparent cover.

[0017] The shock absorber leak testing device disclosed in the present invention has the following advantages:

[0018] The tension spring is replaced with the first drive member and the second drive member. Compared with the tension spring, the first drive member does not require reserved space for stretching or compression. The second drive member is the same as the first drive member and does not require reserved space for stretching or compression. Therefore, it is suitable for multi-station leak testing equipment; at the same time, since the first drive member and the second drive member do not rely on elastic potential energy to provide clamping force for the clamping assembly, the clamping effect can remain stable, which can ensure work efficiency and reduce leak testing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a shock absorber leak testing device disclosed in the present invention;

[0020] Figure 2 is a front view of a shock absorber leak testing device according to the present disclosure;

[0021] Figure 3 yes Figure 1 Enlarged schematic diagram of point A in the middle.

[0022] Explanation of reference numerals: 10 - frame, 20 - clamping mechanism, 201 - first clamping arm, 202 - second clamping arm, 203 - first clamping jaw, 204 - second clamping jaw, 205 - first clamping block, 206 - second clamping block, 30 - leak test mechanism, 301 - sealing pressure head, 302 - lifting mechanism, 40 - start switch, 50 - inspection door, 60 - inspection window DETAILED DESCRIPTION

[0023] like Figures 1 to 3 As shown, a shock absorber leak testing device disclosed herein includes a frame 10;

[0024] The frame 10 has a number of leak testing stations, each of which is provided with a clamping mechanism 20 and a leak testing mechanism 30;

[0025] The clamping mechanism 20 includes a clamping assembly, a first driving member, and a second driving member; the clamping assembly includes a first clamping arm 201 and a second clamping arm 202, a first clamping jaw 203 and a second clamping jaw 204, and a first clamping block 205 and a second clamping block 206. The first clamping arm 201 is connected to the first driving member, and the second clamping arm 202 is connected to the second driving member. The first clamping jaw 203 is rotatably connected to the first clamping arm 201 or the second clamping arm 202, and the second clamping jaw 204 is rotatably connected to the second clamping arm 202 or the first clamping arm 201. The first clamping block 205 is connected to the first clamping jaw 203 or the second clamping jaw 204, and the second clamping block 206 is connected to the second clamping jaw 204 or the first clamping jaw 203. The clamping assembly is used to clamp the shock absorber.

[0026] The leak testing mechanism 30 includes a sealing pressure head 301, an air source and a lifting mechanism 302. The sealing pressure head 301 is connected to the air source and a valve body is provided at the connection between the sealing pressure head 301 and the air source.

[0027] The lifting mechanism 302 includes a third driving member and a lifting block. The third driving member is connected to the lifting block. The lifting block is movably arranged on the leak testing station along the height direction of the frame 10 and is connected to the sealing pressure head 301.

[0028] Specifically, the first driving member (not shown in the figure) can be a servo motor or a pneumatic cylinder. Similarly, the second driving member (not shown in the figure) can be a servo motor or a pneumatic cylinder.

[0029] The clamping assembly includes a first clamping arm 201 and a second clamping arm 202 that are oppositely disposed, a first clamping jaw 203 and a second clamping jaw 204 that are oppositely disposed, and a first clamping block 205 and a second clamping block 206 that are oppositely disposed.

[0030] Exemplarily, the first clamping arm 201 is connected to the first driving member, the second clamping arm 202 is connected to the second driving member, and the end of the first clamping arm 201 is rotatably connected to the first clamping jaw 203. Specifically, a connecting groove is opened in the middle of the end of the first clamping arm 201, and first connecting holes are formed on both sides of the end of the first clamping arm 201 along the direction of the connecting groove. The first clamping jaw 203 has two, and a second connecting hole is formed on the first clamping jaw 203 along its thickness direction. The first clamping jaw 203 is rotatably connected to the first clamping arm 201 through the first connecting block. Specifically, the first connecting block is in the shape of an "I", that is, connecting parts are extended outward at both ends of the first connecting block, the connecting part at one end passes through the first connecting hole on the first clamping arm 201 and is connected to the first clamping arm 201, and the connecting part at the other end passes through the second connecting hole and is connected to the two first clamping jaws 203. More specifically, the inner side surface of the first connecting hole and the inner side surface of the second connecting hole are coated with damping paint, so that the first clamping arm 201 and the first clamping jaw 203 can be rotated steplessly, which is convenient for the staff to adjust.

[0031] The first clamping block 205 is in the shape of an I-shape, and a T-shaped clamping groove is formed on the first clamping jaw 203. One end of the first clamping block 205 is adapted to be clamped with the clamping groove, and the other end is formed with a V-shaped groove. The surface of the V-shaped groove is polished with sandpaper to increase the friction of the V-shaped groove.

[0032] The connection mode between the second clamping arm 202 and the second clamping jaw 204 , and the connection mode between the second clamping jaw 204 and the second clamping block 206 are the same as the connection mode between the first clamping arm 201 and the first clamping jaw 203 , and the connection mode between the first clamping jaw 203 and the first clamping block 205 .

[0033] By sanding the V-grooves of the first clamping block 205 and the second clamping block 206 , the friction coefficient of the surface of the V-grooves is increased, thereby improving the stability of the clamping.

[0034] The leakage testing mechanism 30 includes a sealing pressure head 301, an air source and a lifting mechanism 302. The sealing pressure head 301 is connected to the air source and a valve body is provided at the connection point between the sealing pressure head 301 and the air source. For example, the valve body can be a solenoid valve, an electric valve or a manual valve. The valve body is used to control the connection between the air source and the sealing pressure head 301.

[0035] The lifting mechanism 302 includes a third driving member and a lifting block. The third driving member is connected to the lifting block. The lifting block is movable along the height direction of the frame 10 and is set on the leak testing station, and the lifting block is connected to the sealing pressure head 301; specifically, the lifting block is movable along the height direction of the frame 10, and the lifting block is connected to the sealing pressure head 301, which is used to drive the sealing pressure head 301 to rise and fall.

[0036] Furthermore, the shock absorber leak testing device described in the present disclosure also includes a controller, which is signal-connected to the first driving member, the second driving member, and the third driving member respectively.

[0037] Specifically, the controller can be a commonly used industrial controller such as a PLC (Programmable Logic Controller) or an MCU (Microcontroller Unit). In this embodiment, it is used to perform simple start and stop control. The controller is respectively connected to the first drive member and the second drive member signal, and is used to control the start and stop of each drive member according to the production steps. In other preferred embodiments, a display screen and control buttons can also be installed on the rack 1010, and the display screen and control buttons are respectively connected to the controller signal to facilitate the operator to input control instructions and observe the equipment operation status.

[0038] Furthermore, a start switch 40 is included, and the start switch 40 is connected to the controller signal.

[0039] Specifically, the start switch 40 is provided on a side of the frame 10 close to the operator. When the operator presses the start switch 40 , a start signal is input to the device, and the controller controls each driving component to operate to complete the leak test process.

[0040] Furthermore, the clamping mechanism 20 further includes a light sensor, which is disposed on the first clamping block 205 and / or the second clamping block 206 , and is connected to the controller signal.

[0041] Exemplarily, the light sensor includes a light source and a receiver. The light source is used to generate a light signal. The light source is arranged on the first clamp 205, and the light emitted by the light source is directed toward the second clamp 206. A receiver is provided on the second clamp 206 at a position corresponding to the light emitted by the light source. The receiver is usually a photosensitive element. When the shock absorber is placed between the first clamp 205 and the second clamp 206, the receiver is blocked from receiving the light. The receiver sends a signal to the controller so that the controller controls the first driving member and the second driving member to drive the first clamp arm 201 and the second clamp arm 202 to clamp the shock absorber.

[0042] Furthermore, the gas source is provided in the frame 10 , and maintenance windows are provided on both sides of the frame 10 at positions corresponding to the gas source, and maintenance doors 50 are rotatably provided on the maintenance windows.

[0043] Exemplarily, the gas source can be a gas cylinder, which is placed in the frame 10, which can save the floor space and space occupied by the shock absorber leak test equipment. At the same time, the first drive member, the second drive member and the third drive member can also be arranged in the frame 10. In order to facilitate the staff to carry out maintenance, maintenance windows are opened on both sides of the frame 10 corresponding to the gas source to facilitate the workers to check and repair. In order to prevent dust accumulation inside the frame 10 from affecting the operation of the gas cylinder, the first drive member, the second drive member and the third drive member, an inspection door 50 is rotatably provided on the maintenance window.

[0044] Furthermore, the rack 10 is provided with an inspection window 60 below the inspection door 50 , and a transparent cover is connected to the inspection window 60 , and a ventilation hole is provided at one portion of the transparent cover.

[0045] For example, Figure 1 As shown, in order to facilitate observation by the staff, an inspection window 60 is provided on the side of the frame 10 and below the inspection door 50. A transparent cover is connected to the inspection window 60. Specifically, the transparent cover is an acrylic plate (plexiglass). The acrylic plate has the advantages of good light transmittance, good aging resistance, excellent insulation performance, and recyclability. At the same time, since the gas cylinders supply gas, the first drive member, the second drive member and the third drive member will generate heat during operation, in order to ensure ventilation, an air vent is provided on the transparent cover to increase the heat dissipation performance of the cabinet.

[0046] In the description of the present disclosure, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present disclosure.

[0047] Those skilled in the art can make various other corresponding changes and deformations based on the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of this disclosure.

Claims

1. A shock absorber leak test device, characterized in that: comprising a frame (10); The frame (10) has a plurality of leak testing stations, each of which is provided with a clamping mechanism (20) and a leak testing mechanism (30); The clamping mechanism (20) comprises a clamping assembly, a first driving member and a second driving member; the clamping assembly comprises a first clamping arm (201) and a second clamping arm (202) arranged opposite to each other, a first clamping jaw (203) and a second clamping jaw (204) arranged opposite to each other, and a first clamping block (205) and a second clamping block (206) arranged opposite to each other; the first clamping arm (201) is connected to the first driving member, and the second clamping arm (202) is connected to the second driving member; the first clamping jaw (203) is rotatably connected to the first clamping arm (201) or the second clamping arm (202), and the second clamping jaw (204) is rotatably connected to the second clamping arm (202) or the first clamping arm (201); the first clamping block (205) is connected to the first clamping jaw (203) or the second clamping jaw (204), and the second clamping block (206) is connected to the second clamping jaw (204) or the first clamping jaw (203); the clamping assembly is used for clamping the shock absorber; The leak testing mechanism (30) comprises a sealing pressure head (301), an air source and a lifting mechanism (302), wherein the sealing pressure head (301) is connected to the air source and a valve body is provided at the connection point between the sealing pressure head (301) and the air source; The lifting mechanism (302) includes a third driving member and a lifting block, the third driving member is connected to the lifting block, the lifting block is movably arranged on the leak testing station along the height direction of the frame (10), and the lifting block is connected to the sealing pressure head (301).

2. The shock absorber leak testing device according to claim 1, characterized in that: It also includes a controller, which is connected to the first driving member, the second driving member and the third driving member by signals respectively.

3. The shock absorber leak testing device according to claim 2, characterized in that: It also includes a start switch (40), which is connected to the controller signal.

4. The shock absorber leak testing device according to claim 2 or 3, characterized in that: The clamping mechanism (20) further comprises a light sensor, which is arranged on the first clamping block (205) and / or the second clamping block (206), and is connected to the controller signal.

5. The shock absorber leak testing device according to claim 1, characterized in that: The gas source is arranged in the frame (10), and maintenance windows are provided on both sides of the frame (10) at positions corresponding to the gas source, and a maintenance door (50) is rotatably provided on the maintenance window.

6. The shock absorber leak testing device according to claim 5, characterized in that: The frame (10) is provided with an inspection window (60) below the inspection door (50); a transparent cover is connected to the inspection window (60); and a ventilation hole is provided at one location of the transparent cover.

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