Oil cylinder sealing element testing device

Abstract

The utility model discloses an oil cylinder sealing element test device, which belongs to the technical field of oil cylinder sealing, and comprises an operation table, an oil supply hydraulic device is arranged on the upper surface of the operation table, a left clamping assembly and a right clamping assembly are arranged on the upper surface of the operation table, and the left clamping assembly and the right clamping assembly are correspondingly arranged; the left clamping assembly comprises a left front plate and a left rear plate which are fixedly arranged on the upper surface of the operation table and vertically extend, a left sliding groove is formed in the upper surface of the operation table and located on the inner sides of the left front plate and the left rear plate, a left spring is fixedly connected to the inner wall of the left front plate, and a left auxiliary block is fixedly connected to the inner end of the left spring; the bottom of the left auxiliary block is slidably connected with the left sliding groove. A first electric push rod is fixedly arranged on the inner wall of the left rear plate, and the inner end of a telescopic rod of the first electric push rod is fixedly connected with a left extrusion block. According to the utility model, the oil cylinder sealing element test is more stable, the oil cylinder port A or the oil cylinder port B and the butt joint pipe of the oil delivery pipe are prevented from falling off, and the stability is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil cylinder sealing, and particularly relates to a test device for oil cylinder seals. Background Art

[0002] Oil cylinder seals are key components used in hydraulic cylinder systems, which ensure the smooth and leak-free movement of oil in the cylinder body. According to different working environments and requirements, the selection and specifications of oil cylinder seals also vary. Common oil cylinder seals include O-rings: O-rings are a common type of seal suitable for various specifications of oil cylinders. For example, an O-ring with specifications of 70, 5, 32 can be used for dust seals, a high-low lip Y-ring with a wear-resistant belt perimeter of 125, 6, 10, 2, 51, and a dust seal with specifications of 132, 5, 32, etc. Piston combination seals: Piston combination seals usually consist of multiple O-rings to provide better sealing effects. For example, a high piston combination seal with a wear-resistant belt perimeter of 251, 3, 15, 2, 51 and specifications of 94, 80, 6, 51. Y-rings: Y-rings are suitable for special occasions of oil cylinders, such as injection molding machine oil cylinders. For example, a hole-shaft universal U-ring that replaces UN UHS with specifications of 601, and special Y-rings, etc. Teflon seals: This type of seal has the characteristics of high temperature and wear resistance and is suitable for shaft seals. For example, hydraulic cylinder piston rod seals and die-casting machine oil seals, etc. After being used for a period of time, oil cylinder seals will show wear. Since they are inside the oil cylinder, even if wear occurs, it cannot be directly observed. Therefore, it is necessary to test the oil cylinder seals after a period of use to detect whether their sealing performance is still qualified. The existing test is to fill the oil into port A or port B of the oil cylinder to make the piston move. When oil enters port A of the oil cylinder, if the piston completely moves to the top of the other end of the oil cylinder and port B of the oil cylinder does not leak oil, the seals of this oil cylinder are qualified, and this is used for test detection. However, during the test process of oil cylinder seals, the cylinder body of the oil cylinder is unstable when filling with oil, which is likely to cause port A or port B of the oil cylinder to separate from the pipe orifice for butt-filling with oil. There is a need for a test device that can keep the cylinder body of the oil cylinder in a stable state when detecting oil cylinder seals. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a test device for oil cylinder seals, which solves the problems in the above background art.

[0004] The object of the present utility model is achieved as follows: An oil cylinder seal test device includes an operation table. A hydraulic oil supply device is arranged on the upper surface of the operation table. A left clamping assembly and a right clamping assembly are arranged on the upper surface of the operation table, and the left clamping assembly and the right clamping assembly are arranged corresponding to each other. The left clamping assembly includes a left front plate and a left rear plate which are fixedly arranged on the upper surface of the operation table and extend vertically. A left chute is formed on the upper surface of the operation table and inside the left front plate and the left rear plate. A left spring is fixedly connected to the inner wall of the left front plate. The inner end of the left spring is fixedly connected to a left auxiliary block, and the bottom of the left auxiliary block is slidably connected to the left chute. A first electric push rod is fixedly arranged on the inner wall of the left rear plate. The inner end of the telescopic rod of the first electric push rod is fixedly connected to a left pressing block, and the bottom of the left pressing block is slidably connected to the left chute. A first clamping opening is arranged between the left pressing block and the left auxiliary block. By arranging the left clamping assembly and the right clamping assembly above the operation table, the oil cylinder to be tested is placed inside the left clamping assembly and the right clamping assembly. The left clamping assembly and the right clamping assembly automatically clamp and fix the oil cylinder, making the oil cylinder seal test more stable, avoiding the disconnection of the connecting pipe between the A port or B port of the oil cylinder and the oil pipeline, and enhancing the stability.

[0005] Further, the first clamping opening includes a left front side opening and a left rear side opening, and both the left front side opening and the left rear side opening are triangular notch openings. Rubber convex strips are fixedly arranged on the inner walls of the left front side opening and the left rear side opening. A left extension plate is fixedly arranged at the bottom of the left front side opening. A left docking opening is formed at the middle position of the left extension plate. A left insertion plate is fixedly connected to the bottom of the left rear side opening, and the left insertion plate is arranged corresponding to the left docking opening. During use, after placing the cylinder block of the oil cylinder inside the left clamping assembly, the left pressing block is moved along the left chute towards the left auxiliary block by the first electric push rod. After the left pressing block moves, the cylinder block of the oil cylinder is clamped inside the left front side opening and the left rear side opening to clamp and fix the cylinder block of the oil cylinder. At this time, the left spring is compressed, and under the action of the restoring force of the left spring, the fixation is more firm and stable. Through the setting of the left insertion plate and the left docking opening, the docking between the left pressing block and the left auxiliary block is more accurate.

[0006] Further, the right clamping assembly includes a right front plate and a right rear plate which are fixedly arranged on the upper surface of the operation table and extend vertically. A right chute is formed on the upper surface of the operation table and inside the right front plate and the right rear plate. A right spring is fixedly connected to the inner wall of the right front plate. The inner end of the right spring is fixedly connected to a right auxiliary block, and the bottom of the right auxiliary block is slidably connected to the right chute. A second electric push rod is fixedly arranged on the inner wall of the right rear plate. The inner end of the telescopic rod of the second electric push rod is fixedly connected to a right pressing block, and the bottom of the right pressing block is slidably connected to the right chute. A second clamping opening is arranged between the right pressing block and the right auxiliary block.

[0007] Further, the second clamping opening includes a right front side opening and a right rear side opening, and both the right front side opening and the right rear side opening are triangular notch openings. Rubber convex strips are fixedly arranged on the inner walls of the right front side opening and the right rear side opening; a right extension plate is fixedly arranged at the bottom of the right front side opening, a right docking opening is formed at the middle position of the right extension plate, a right plug-in plate is fixedly connected to the bottom of the right rear side opening, and the right plug-in plate is arranged corresponding to the right docking opening. During use, the left clamping assembly is used to fix the left end of the oil cylinder body, and the right clamping assembly is used to fix the right end of the oil cylinder body. Through the mutual cooperation of the left clamping assembly and the right clamping assembly, the cylinder body is more stable during the test of the oil cylinder seal.

[0008] Further, the oil supply hydraulic device includes an oil delivery pipe, and a docking pipe corresponding to the A port and the B port of the oil cylinder is arranged at the port of the oil delivery pipe.

[0009] Further, the oil supply hydraulic device is connected with an electric control device.

[0010] The beneficial effects of the present utility model: By arranging a left clamping assembly and a right clamping assembly above the operation table, placing the oil cylinder to be tested inside the left clamping assembly and the right clamping assembly, and the left clamping assembly and the right clamping assembly automatically clamp and fix the oil cylinder, making the oil cylinder more stable during the test of the oil cylinder seal, avoiding the disconnection of the docking pipe between the A port or B port of the oil cylinder and the oil delivery pipe, and enhancing the stability. During use, after placing the cylinder body of the oil cylinder inside the left clamping assembly, the left pressing block moves along the left sliding groove towards the left auxiliary block through the first electric push rod. After the left pressing block moves, the cylinder body of the oil cylinder is clamped inside the left front side opening and the left rear side opening to clamp and fix the cylinder body of the oil cylinder. At this time, the left spring is compressed, and under the action of the restoring force of the left spring, the fixation is more firm. Through the arrangement of the left plug-in plate and the left docking opening, the docking between the left pressing block and the left auxiliary block is more accurate. The left clamping assembly is used to fix the left end of the oil cylinder body, and the right clamping assembly is used to fix the right end of the oil cylinder body. Through the mutual cooperation of the left clamping assembly and the right clamping assembly, the cylinder body is more stable during the test and detection of the oil cylinder seal. Description of the Drawings

[0011] Figure 1 is the front view structural schematic diagram of the present utility model;

[0012] Figure 2 is the top view structural schematic diagram of the present utility model;

[0013] Figure 3 is the top view three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 4 is the bottom view three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 5 is the Figure 3Enlarged view of A.

[0016] In the figure: 1, operating platform; 2, oil supply hydraulic device; 3, left clamping assembly; 4, right clamping assembly; 5, left front plate; 6, left rear plate; 7, left sliding groove; 8, left spring; 9, left auxiliary block; 10, first electric push rod; 11, left extrusion block; 12, left front side opening; 13, left rear side opening; 14, rubber convex strip; 15, left extension plate; 16, left docking port; 17, left plug-in board; 18, right front plate; 19, right rear plate; 20, second electric push rod; 21, docking pipe. Detailed implementation manner

[0017] The following further describes the present utility model in detail with reference to the accompanying drawings. It should be noted that all the orientation words such as up and down, front and back, left and right that appear in the present utility model are orientation words made with Figure 1 the reference figure as the reference, and all the orientation words do not limit the present utility model, but are only for more clearly explaining and interpreting the present utility model. Embodiment

[0018] As Figures 1-5As shown in the figure, this embodiment discloses a test device for oil cylinder seals, including an operation table 1. A hydraulic oil supply device 2 is arranged on the upper surface of the operation table 1. A left clamping component 3 and a right clamping component 4 are arranged on the upper surface of the operation table 1, and the left clamping component 3 and the right clamping component 4 are arranged corresponding to each other. The left clamping component 3 includes a left front plate 5 and a left rear plate 6 that are fixedly arranged on the upper surface of the operation table 1 and extend vertically. A left sliding groove 7 is opened on the upper surface of the operation table 1 and inside the left front plate 5 and the left rear plate 6. A left spring 8 is fixedly connected to the inner wall of the left front plate 5. The inner end of the left spring 8 is fixedly connected to a left auxiliary block 9, and the bottom of the left auxiliary block 9 is slidably connected to the left sliding groove 7. A first electric push rod 10 is fixedly arranged on the inner wall of the left rear plate 6. The inner end of the telescopic rod of the first electric push rod 10 is fixedly connected to a left pressing block 11, and the bottom of the left pressing block 11 is slidably connected to the left sliding groove 7. A first clamping opening is arranged between the left pressing block 11 and the left auxiliary block 9. The first clamping opening includes a left front side opening 12 and a left rear side opening 13, and both the left front side opening 12 and the left rear side opening 13 are triangular groove openings. Rubber convex strips 14 are fixedly arranged on the inner walls of the left front side opening 12 and the left rear side opening 13. A left extension plate 15 is fixedly arranged at the bottom of the left front side opening 12. A left docking port 16 is opened at the middle position of the left extension plate 15. A left insertion plate 17 is fixedly connected to the bottom of the left rear side opening 13, and the left insertion plate 17 and the left docking port 16 are arranged corresponding to each other. During use, after placing the cylinder block of the oil cylinder inside the left clamping component 3, the first electric push rod 10 is used to make the left pressing block 11 move along the left sliding groove 7 towards the left auxiliary block 9. After the left pressing block 11 moves, the cylinder block of the oil cylinder is clamped inside the left front side opening 12 and the left rear side opening 13 to clamp and fix the cylinder block of the oil cylinder. At this time, the left spring 8 is compressed, and under the action of the restoring force of the left spring 8, the fixation is more firm and stable. Through the arrangement of the left insertion plate 17 and the left docking port 16, the docking between the left pressing block 11 and the left auxiliary block 9 is more accurate.

[0019] By arranging the left clamping component 3 and the right clamping component 4 above the operation table 1, placing the oil cylinder to be tested inside the left clamping component 3 and the right clamping component 4, and the left clamping component 3 and the right clamping component 4 automatically clamp and fix the oil cylinder, making the test of the oil cylinder seal more stable, avoiding the disconnection of the docking pipe 21 between the A port or B port of the oil cylinder and the oil delivery pipe, and enhancing the stability. Embodiment

[0020] As Figures 1-5As shown in the figure, this embodiment discloses an oil cylinder seal test device, which includes an operation table 1. A fuel supply hydraulic device 2 is arranged on the upper surface of the operation table 1. A left clamping component 3 and a right clamping component 4 are arranged on the upper surface of the operation table 1, and the left clamping component 3 and the right clamping component 4 are arranged corresponding to each other. The left clamping component 3 includes a left front plate 5 and a left rear plate 6 that are fixedly arranged on the upper surface of the operation table 1 and extend vertically. A left chute 7 is opened on the upper surface of the operation table 1 and inside the left front plate 5 and the left rear plate 6. A left spring 8 is fixedly connected to the inner wall of the left front plate 5. The inner end of the left spring 8 is fixedly connected to a left auxiliary block 9, and the bottom of the left auxiliary block 9 is slidably connected to the left chute 7. A first electric push rod 10 is fixedly arranged on the inner wall of the left rear plate 6. The inner end of the telescopic rod of the first electric push rod 10 is fixedly connected to a left extrusion block 11, and the bottom of the left extrusion block 11 is slidably connected to the left chute 7. A first clamping opening is arranged between the left extrusion block 11 and the left auxiliary block 9. By arranging the left clamping component 3 and the right clamping component 4 above the operation table 1, the oil cylinder to be tested is placed inside the left clamping component 3 and the right clamping component 4. The left clamping component 3 and the right clamping component 4 automatically clamp and fix the oil cylinder, making the oil cylinder seal test more stable, avoiding the disconnection of the connecting pipe 21 between the A port or B port of the oil cylinder and the oil delivery pipe, and enhancing the stability.

[0021] For better effect, the first clamping opening includes a left front side opening 12 and a left rear side opening 13, and both the left front side opening 12 and the left rear side opening 13 are triangular notch openings. Rubber convex strips 14 are fixedly arranged on the inner walls of the left front side opening 12 and the left rear side opening 13. A left extension plate 15 is fixedly arranged at the bottom of the left front side opening 12. A left docking opening 16 is opened at the middle position of the left extension plate 15. A left insertion plate 17 is fixedly connected to the bottom of the left rear side opening 13, and the left insertion plate 17 is arranged corresponding to the left docking opening 16. During use, after placing the cylinder body of the oil cylinder inside the left clamping component 3, the first electric push rod 10 is used to make the left extrusion block 11 move along the left chute 7 towards the left auxiliary block 9. After the left extrusion block 11 moves, the cylinder body of the oil cylinder is clamped into the left front side opening 12 and the left rear side opening 13 to clamp and fix the cylinder body of the oil cylinder. At this time, the left spring 8 is compressed, and under the action of the restoring force of the left spring 8, the fixation is more firm and stable. Through the arrangement of the left insertion plate 17 and the left docking opening 16, the docking between the left extrusion block 11 and the left auxiliary block 9 is more accurate.

[0022] For better effect, the right clamping assembly 4 includes a right front plate 18 and a right rear plate 19 which are fixedly arranged on the upper surface of the operation table 1 and extend vertically. A right sliding groove is formed on the upper surface of the operation table 1 and inside the right front plate 18 and the right rear plate 19. A right spring is fixedly connected to the inner wall of the right front plate 18. The inner end of the right spring is fixedly connected to a right auxiliary block, and the bottom of the right auxiliary block is slidably connected to the right sliding groove. A second electric push rod 20 is fixedly arranged on the inner wall of the right rear plate 19. The inner end of the telescopic rod of the second electric push rod 20 is fixedly connected to a right extrusion block, and the bottom of the right extrusion block is slidably connected to the right sliding groove. A second clamping opening is arranged between the right extrusion block and the right auxiliary block.

[0023] For better effect, the second clamping opening includes a right front side opening and a right rear side opening, and both the right front side opening and the right rear side opening are triangular groove openings. Rubber convex strips 14 are fixedly arranged on the inner walls of the right front side opening and the right rear side opening. A right extension plate is fixedly arranged at the bottom of the right front side opening. A right docking opening is formed at the middle position of the right extension plate. A right insertion plate is fixedly connected to the bottom of the right rear side opening, and the right insertion plate is arranged corresponding to the right docking opening. During use, the left clamping assembly 3 is used to fix the left end of the oil cylinder body, and the right clamping assembly 4 is used to fix the right end of the oil cylinder body. Through the mutual cooperation of the left clamping assembly 3 and the right clamping assembly 4, the cylinder body is more stable during the test of the oil cylinder seal. Embodiment

[0024] As Figures 1-5 Shown in the figure, this embodiment discloses an oil cylinder seal test device, which includes an operation table 1. A fuel supply hydraulic device 2 is arranged on the upper surface of the operation table 1. A left clamping assembly 3 and a right clamping assembly 4 are arranged on the upper surface of the operation table 1, and the left clamping assembly 3 and the right clamping assembly 4 are arranged corresponding to each other. The left clamping assembly 3 includes a left front plate 5 and a left rear plate 6 which are fixedly arranged on the upper surface of the operation table 1 and extend vertically. A left sliding groove 7 is formed on the upper surface of the operation table 1 and inside the left front plate 5 and the left rear plate 6. A left spring 8 is fixedly connected to the inner wall of the left front plate 5. The inner end of the left spring 8 is fixedly connected to a left auxiliary block 9, and the bottom of the left auxiliary block 9 is slidably connected to the left sliding groove 7. A first electric push rod 10 is fixedly arranged on the inner wall of the left rear plate 6. The inner end of the telescopic rod of the first electric push rod 10 is fixedly connected to a left extrusion block 11, and the bottom of the left extrusion block 11 is slidably connected to the left sliding groove 7. A first clamping opening is arranged between the left extrusion block 11 and the left auxiliary block 9. By arranging the left clamping assembly 3 and the right clamping assembly 4 above the operation table 1, placing the oil cylinder to be tested inside the left clamping assembly 3 and the right clamping assembly 4, and the left clamping assembly 3 and the right clamping assembly 4 automatically clamp and fix the oil cylinder, the oil cylinder seal test is more stable, avoiding the disconnection of the docking pipe 21 between the A port or B port of the oil cylinder and the oil delivery pipe, and enhancing the stability.

[0025] For better effect, the first clamping opening includes a left front side opening 12 and a left rear side opening 13, and both the left front side opening 12 and the left rear side opening 13 are triangular groove openings. Rubber convex strips 14 are fixedly arranged on the inner walls of the left front side opening 12 and the left rear side opening 13; a left extension plate 15 is fixedly arranged at the bottom of the left front side opening 12, a left docking opening 16 is arranged at the middle position of the left extension plate 15, a left plug-in plate 17 is fixedly connected to the bottom of the left rear side opening 13, and the left plug-in plate 17 is arranged corresponding to the left docking opening 16. During use, after placing the cylinder body of the oil cylinder into the left clamping assembly 3, the left extrusion block 11 is made to move along the left sliding groove 7 towards the left auxiliary block 9 through the first electric push rod 10. After the left extrusion block 11 moves, the cylinder body of the oil cylinder is clamped into the left front side opening 12 and the left rear side opening 13 to clamp and fix the cylinder body of the oil cylinder. At this time, the left spring 8 is compressed, and under the action of the restoring force of the left spring 8, the fixation is more firm and stable. Through the arrangement of the left plug-in plate 17 and the left docking opening 16, the docking between the left extrusion block 11 and the left auxiliary block 9 is more accurate.

[0026] For better effect, the right clamping assembly 4 includes a right front plate 18 and a right rear plate 19 which are fixedly arranged on the upper surface of the operating table 1 and extend vertically. A right sliding groove is arranged on the upper surface of the operating table 1 and inside the right front plate 18 and the right rear plate 19. A right spring is fixedly connected to the inner wall of the right front plate 18, the inner end of the right spring is fixedly connected to a right auxiliary block, and the bottom of the right auxiliary block is slidably connected to the right sliding groove; a second electric push rod 20 is fixedly arranged on the inner wall of the right rear plate 19, the inner end of the telescopic rod of the second electric push rod 20 is fixedly connected to a right extrusion block, and the bottom of the right extrusion block is slidably connected to the right sliding groove. A second clamping opening is arranged between the right extrusion block and the right auxiliary block.

[0027] For better effect, the second clamping opening includes a right front side opening and a right rear side opening, and both the right front side opening and the right rear side opening are triangular groove openings. Rubber convex strips 14 are fixedly arranged on the inner walls of the right front side opening and the right rear side opening; a right extension plate is fixedly arranged at the bottom of the right front side opening, a right docking opening is arranged at the middle position of the right extension plate, a right plug-in plate is fixedly connected to the bottom of the right rear side opening, and the right plug-in plate is arranged corresponding to the right docking opening. During use, the left clamping assembly 3 is used to fix the left end of the oil cylinder cylinder body, and the right clamping assembly 4 is used to fix the right end of the oil cylinder cylinder body. Through the mutual cooperation of the left clamping assembly 3 and the right clamping assembly 4, the cylinder body is more stable during the oil cylinder seal test and detection.

[0028] For better effect, the oil supply hydraulic device 2 includes an oil delivery pipe, and a docking pipe 21 corresponding to the A port and the B port of the oil cylinder is arranged at the port of the oil delivery pipe. The oil supply hydraulic device 2 is connected with an electric control device.

[0029] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. Cylinder seal test device, including an operating table, characterized in that: An oil supply hydraulic device is provided on the upper surface of the operating table, and a left supporting assembly and a right supporting assembly are provided on the upper surface of the operating table, and the left supporting assembly is arranged corresponding to the right supporting assembly; the left supporting assembly includes a left front plate and a left rear plate fixedly arranged on the upper surface of the operating table and extending vertically, and a left slide groove is provided on the upper surface of the operating table and located on the inner sides of the left front plate and the left rear plate, a left spring is fixedly connected to the inner wall of the left front plate, the inner end of the left spring is fixedly connected to the left auxiliary block, and the bottom of the left auxiliary block is slidably connected to the left slide groove; a first electric push rod is fixedly provided on the inner wall of the left rear plate, the inner end of the telescopic rod of the first electric push rod is fixedly connected to the left extrusion block, and the bottom of the left extrusion block is slidably connected to the left slide groove, and a first clamp is provided between the left extrusion block and the left auxiliary block.

2. The oil cylinder seal testing device according to claim 1, characterized in that: The first clamping opening includes a left front side opening and a left rear side opening, and the left front side opening and the left rear side opening are both triangular grooves, and the inner walls of the left front side opening and the left rear side opening are fixedly provided with rubber convex strips; a left extension plate is fixedly provided at the bottom of the left front side opening, and a left docking port is opened in the middle position of the left extension plate, and a left plug-in plate is fixedly connected to the bottom of the left rear side opening, and the left plug-in plate is arranged corresponding to the left docking port.

3. The oil cylinder seal testing device according to claim 1, characterized in that: The right supporting assembly includes a right front plate and a right rear plate fixedly arranged on the upper surface of the operating table and extending vertically, a right slide groove is opened on the upper surface of the operating table and on the inner sides of the right front plate and the right rear plate, a right spring is fixedly connected to the inner wall of the right front plate, the inner end of the right spring is fixedly connected to the right auxiliary block, and the bottom of the right auxiliary block is slidably connected to the right slide groove; a second electric push rod is fixedly arranged on the inner wall of the right rear plate, the inner end of the telescopic rod of the second electric push rod is fixedly connected to the right extrusion block, and the bottom of the right extrusion block is slidably connected to the right slide groove, and a second clamp is arranged between the right extrusion block and the right auxiliary block.

4. The oil cylinder seal testing device according to claim 3, characterized in that: The second clamping opening includes a right front side opening and a right rear side opening, and the right front side opening and the right rear side opening are both triangular notches, and the inner walls of the right front side opening and the right rear side opening are fixedly provided with rubber convex strips; a right extension plate is fixedly provided at the bottom of the right front side opening, a right docking port is opened in the middle position of the right extension plate, and a right plug-in plate is fixedly connected to the bottom of the right rear side opening, and the right plug-in plate is arranged corresponding to the right docking port.

5. The oil cylinder seal testing device according to claim 1, characterized in that: The oil supply hydraulic device comprises an oil delivery pipe, and a port of the oil delivery pipe is provided with a butt-joint pipe corresponding to the A port and the B port of the oil cylinder.

6. The oil cylinder seal testing device according to claim 1, characterized in that: The oil supply hydraulic device is connected with an electronic control device.

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