Oil cylinder sealing element performance detection equipment and detection method thereof

Abstract

The invention discloses oil cylinder sealing element performance detection equipment and a detection method thereof.The oil cylinder sealing element performance detection equipment comprises a base, a supporting seat, a detection table, a fixing support, fixing mechanisms and a clamping mechanism, the fixing mechanisms are symmetrically arranged on the left side and the right side of the front side of the supporting seat, the fixing mechanisms are used for limiting the supporting seat and a transverse rail, and the clamping mechanism is used for clamping the supporting seat and the transverse rail. The clamping mechanism is arranged at the upper end of the supporting seat, the clamping mechanism is composed of a lead screw, a vertical plate and a clamping roller, the detection assemblies are arranged on a detection push plate in a horizontal state, and each detection assembly is composed of a detection rod, a scale code and a ball. According to the oil cylinder sealing element performance detection equipment and the detection method thereof, the sealing element can be conveniently moved for inspection, all positions of the sealing element can be conveniently detected in all directions, through arrangement of the laser displacement sensor, the shooting device and the detection assembly, the smoothness of the sealing element can be detected and displayed in multiple modes, and observation is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field related to oil cylinder seal performance detection, and in particular to an oil cylinder seal performance detection device and a detection method thereof. Background Art

[0002] The oil cylinder refers to a hydraulic actuator that converts hydraulic energy into mechanical energy. It is mainly used to achieve linear reciprocating motion. It is also called a hydraulic cylinder. It controls the linear motion speed and output force of the piston by inputting the flow and pressure of the liquid. It is suitable for the hydraulic systems of various machines. It has the advantages of simple structure, reliable operation, and smooth movement. As a sealing device to prevent liquid and gas leakage, the oil cylinder seal plays an important role in the hydraulic system. In addition, during the production process of the seal, due to the air mixed inside it or the poor flatness during the cutting process, it is easy to cause potholes and uneven surfaces on the surface of the seal, which has a bad effect on the sealing performance. Therefore, it is necessary to use corresponding testing equipment to detect the finish of the seal; For example, announcement number CN115752186A discloses a rubber seal performance testing device, including a base, a guide rail fixedly installed on the top of the base, an L-plate fixedly installed on the base, a support frame symmetrically installed on the outer side of the L-plate, horizontal cylinders fixedly installed on both support frames, a bearing plate slidably connected to the guide rail, sliding blocks symmetrically installed on both sides of the bearing plate, the sliding blocks are adapted to the guide rail, a stopper is fixedly installed on the end of the guide rail away from the L-plate, and a discharge mechanism is arranged on the bearing plate; sleeve tubes are symmetrically installed on the L-plate, a movable rod is plugged into the sleeve tube, an adjustment mechanism is arranged on the top of the movable rod, and a mounting plate is fixedly installed on the bottom of the movable rod. Thereby, the function of detecting the pits and curved surfaces on the surface of the rubber seal can be realized, and the effect of accurately detecting the smoothness of the rubber seal can be achieved, which is beneficial to improving the qualified rate of rubber seal production; However, the existing seal performance testing equipment and testing methods still have the following shortcomings: 1. The existing seal performance testing equipment and testing methods have poor limiting effect on seals, and it is inconvenient to move the tested seals for inspection; 2. In the existing seal performance testing equipment and testing methods, the seal is in a static state during the testing process, which is not convenient for all-round testing of all positions on the seal; 3. The existing seal performance testing equipment and testing methods have a relatively single testing method, which is not convenient for intuitive observation of the entire test results.

[0003] Therefore, we propose a cylinder seal performance detection device and a detection method thereof to solve the above-mentioned problems. Summary of the invention

[0004] The object of the present invention is to provide a cylinder seal performance testing device and a testing method thereof, so as to solve the problems proposed in the above-mentioned background technology that the limiting effect of the seal is not good, and it is inconvenient to move the tested seal for inspection. During the inspection of the seal, the seal is in a static state, which is not convenient for all-round inspection of various positions on the seal, the inspection method is relatively single, and it is not convenient to intuitively observe the entire inspection result.

[0005] To achieve the above object, the present invention provides the following technical solutions: a cylinder seal performance testing device and a testing method thereof, comprising a base, a support seat, a testing platform and a fixed bracket, wherein a cross rail is fixedly connected to the middle of the upper end of the base, and a display device is installed at the upper end of the fixed bracket; Also includes: A fixing mechanism, wherein the fixing mechanism is symmetrically arranged on the left and right sides of the front side of the support seat, and a horizontal rail is provided through the lower end of the support seat, a front-to-back sliding structure is formed between the support seat and the horizontal rail, and the support seat is fitted on the upper end of the base; Wherein, the fixing mechanism is used to limit the position between the support seat and the cross rail, and the fixing mechanism is composed of a handle, an auxiliary plate, a fixing block, a fixing plate and a spring; The clamping mechanism is arranged at the upper end of the support seat, and the clamping mechanism is composed of a screw rod, a vertical plate and a clamping roller; A plurality of detection components are provided, wherein the detection components are arranged on a detection push plate in a horizontal state, and the detection components are composed of a detection rod, a scale code and a ball.

[0006] Preferably, both front and rear ends of the cross rail are fixedly connected to limit blocks, and the limit blocks are fitted to the support seat, and both front and rear ends of the left and right sides of the cross rail are provided with fixing holes, and fixing plates for positioning are inserted into the fixing holes.

[0007] Preferably, a left-right sliding structure is formed between the fixed plate and the fixed block, and the fixed block is fixedly connected to the front end of the auxiliary plate, the auxiliary plate is fixedly connected to the front side of the lower end of the support seat, and a handle is fixedly connected to the side of the auxiliary plate; Meanwhile, a spring is arranged between the auxiliary plate and the fixing plate.

[0008] Preferably, a reduction motor for driving is fixedly installed in the middle of the support seat, and the output end of the reduction motor is fixedly connected to a support plate, and movable columns are fixedly connected to the left and right sides of the lower end of the support plate, and a sliding structure is formed between the movable column and the limiting rail in a ring structure, and the limiting rail is fixedly connected to the upper end of the support seat.

[0009] Preferably, a detection platform is fixedly connected to the upper end of the support plate.

[0010] Preferably, a screw rod for adjustment is rotatably connected to the middle of the support plate, and both left and right ends of the screw rod are threadedly connected to vertical plates, and a clamping roller is fixedly connected to the upper end of the vertical plate, and the clamping roller is slidably connected to the middle of the detection platform; At the same time, the thread directions of the left and right ends of the screw rod are opposite, and a left-right sliding structure is formed between the lower end of the vertical plate and the support plate.

[0011] Preferably, the fixed bracket is fixedly connected to the rear side of the upper end of the base, and an electric telescopic rod is fixedly installed on the upper end of the fixed bracket, the output end of the electric telescopic rod is fixedly connected to a detection push plate, and the left and right ends of the detection push plate are fixedly connected to movable sleeves, and an up and down sliding structure is formed between the movable sleeve and the auxiliary rod in a vertical state, and the auxiliary rod is fixedly connected to the outer side surface of the fixed bracket.

[0012] Preferably, a laser displacement sensor is fixedly mounted on the middle portion of the upper end of the detection push plate, and a shooting device is fixedly mounted on both the front and rear ends of the detection push plate.

[0013] Preferably, a plurality of detection rods are telescopically connected to the detection push plate, and a scale code is provided on the front side of the detection rod, a ball is rollingly provided at the lower end of the detection rod, and the ball is fittedly provided at the upper end of the seal.

[0014] Preferably, the method for using the oil cylinder seal performance testing equipment comprises the following steps: Step 1: Place the seal to be tested on the testing table, and clamp and position the seal by a clamping mechanism; Step 2: Move the seal backward for inspection through the cross rail and the support seat together with the inspection table; Step 3: During the inspection, the support plate and the inspection table are rotated on the support seat to drive the seal to rotate to achieve all-round inspection of the seal; Step 4: Combine the detection push plate, laser displacement sensor, camera and detection assembly to realize the performance detection of the seal, and the detection result can be displayed through the display device.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the oil cylinder seal performance testing device and the testing method thereof can clamp and position the tested seal through the clamping mechanism, and slide between the support seat and the cross rail to facilitate the moving of the seal for testing. The testing platform rotates on the upper end of the support seat to drive the tested seal to rotate, so as to facilitate all-round testing of various positions of the seal. Through the arrangement of the laser displacement sensor, the shooting device and the testing component, the smoothness of the seal can be tested and displayed in various ways, and the test results are displayed through the display device for easy observation. 1. It is equipped with a cross rail, a support seat and a clamping assembly. The clamping assembly and the seal to be inspected are stably clamped and positioned. The support seat and the cross rail slide forward and backward, which facilitates the movement of the seal for inspection. The setting of the fixing mechanism facilitates the limit between the support seat and the cross rail. 2. It is equipped with a support plate, a movable column, a limit rail and a test platform. The test platform is driven by a reduction motor to rotate on the upper end of the support seat, driving the seal to be tested to rotate, so that the seal can be tested in all directions. In addition, the sliding between the movable column and the limit rail improves the stability of the test platform during the rotation process; 3. A laser displacement sensor, a shooting device and a detection component are provided. The sealing member is photographed and observed by the shooting device. In combination with the setting of the laser displacement sensor and the detection component, the detection rod is telescopically moved on the detection push plate, and the displacement of the telescopic movement is sensed by the laser displacement sensor, so as to judge the surface finish of the sealing member. At the same time, the detection results can be displayed in combination with the display device, which is convenient for the detection personnel to observe the results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention in the inspection state; Figure 3 It is a schematic diagram of the side cutaway structure of the present invention; Figure 4 It is a schematic diagram of the front view cross-section structure of the cross rail, the support seat, the support plate and the detection platform of the present invention; Figure 5 This is a schematic diagram of the structure of the cross rail, support seat and detection platform in the present invention when viewed from above; Figure 6 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 7 For the present invention Figure 4 The enlarged structural diagram at B in the middle; Figure 8 It is a schematic diagram of the overall structure of the fixing mechanism of the present invention; Fig. 9 It is a schematic diagram of the decomposition of the support plate joint, the movable column and the limit rail of the present invention; Fig.10 It is a schematic diagram of the exploded structure of the detection platform and the clamping roller of the present invention; Fig.11 This is a schematic diagram of the overall structure of the detection push plate, movable sleeve, auxiliary rod and detection rod of the present invention; Fig.12 For the present invention Fig.11 The enlarged structural diagram at C in the middle; Fig.13 This is a schematic diagram of the overall structure of the detection assembly of the present invention when viewed from above; Fig.14 It is a schematic diagram of the structure of the detection push plate, the shooting device and the detection rod of the present invention from a bottom view; Fig.15 This is a schematic diagram of the exploded structure of the detection push plate and the detection rod of the present invention; Fig.16 It is a schematic diagram of the front view structure of the sealing component detection process of the present invention.

[0017] In the figure: 1. base; 2. horizontal rail; 3. support seat; 4. limit block; 5. fixing mechanism; 6. handle; 7. auxiliary plate; 8. fixing block; 9. fixing plate; 10. spring; 11. fixing hole; 12. reduction motor; 13. support plate; 14. movable column; 15. limit rail; 16. detection table; 17. screw rod; 18. vertical plate; 19. clamping roller; 20. fixed bracket; 21. electric telescopic rod; 22. detection push plate; 23. movable sleeve; 24. auxiliary rod; 25. laser displacement sensor; 26. shooting device; 27. detection component; 28. detection rod; 29. ​​scale code; 30. ball. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 16 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problems in the prior art that the limiting effect on the seal is poor and it is inconvenient to move the tested seal for inspection, this embodiment adopts the following technical scheme, a cylinder seal performance detection device and a detection method thereof, which are provided with a base 1, a cross rail 2, a support seat 3, a limit block 4, a fixing mechanism 5, a fixing hole 11, a detection table 16 and a clamping mechanism, the fixing mechanism 5 is symmetrically arranged on the left and right sides of the front side of the support seat 3, and the lower end of the support seat 3 is penetrated by a cross rail 2, a front and rear sliding structure is formed between the support seat 3 and the cross rail 2, and the support seat 3 is fitted at the upper end of the base 1, the fixing mechanism 5 is used to limit the support seat 3 and the cross rail 2, and the fixing mechanism 5 is composed of a handle 6, an auxiliary plate 7, a fixing block 8, a fixing plate 9 and a spring 10, the clamping mechanism is arranged at the upper end of the support seat 3, and the clamping mechanism is composed of a screw rod 17, a vertical plate 18 and a clamping roller 1 9, the front and rear ends of the cross rail 2 are fixedly connected to the limit block 4, and the limit block 4 is fitted with the support seat 3, the front and rear ends of the left and right sides of the cross rail 2 are provided with fixing holes 11, and the fixing holes 11 are inserted with fixing plates 9 for positioning, and a left and right sliding structure is formed between the fixing plate 9 and the fixing block 8, and the fixing block 8 is fixedly connected to the front end of the auxiliary plate 7, the auxiliary plate 7 is fixedly connected to the front side of the lower end of the support seat 3, and the side of the auxiliary plate 7 is fixedly connected with a handle 6, a spring 10 is arranged between the auxiliary plate 7 and the fixing plate 9, the middle part of the support plate 13 is rotatably connected with a screw rod 17 for adjustment, and the left and right ends of the screw rod 17 are threadedly connected with a vertical plate 18, the upper end of the vertical plate 18 is fixedly connected with a clamping roller 19, and the clamping roller 19 is slidably connected to the middle part of the detection table 16, the left and right ends of the screw rod 17 have opposite thread directions, and the lower end of the vertical plate 18 and the support plate 13 form a left and right sliding structure; like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig.10As shown, first, the seal to be tested is placed on the upper end of the test table 16, and the seal is sleeved on the outside of the clamping roller 19. Then, by rotating the screw rod 17, the screw rod 17 drives the vertical plate 18 and the support plate 13 to slide, and the vertical plate 18 drives the clamping roller 19 to move toward each other, so as to facilitate stable clamping of the seal. After the clamping is completed, the operator holds the handle 6 and pulls the fixing plate 9 with the thumb to slide between the fixing plate 9 and the fixing block 8. At this time, the fixing plate 9 squeezes the spring 10, and the spring 10 undergoes elastic deformation. 9 is disengaged from the fixing hole 11 on the front side of the cross rail 2, thereby releasing the limit between the support seat 3 and the cross rail 2, and then pushing the support seat 3 backward, the support seat 3 slides between the cross rail 2, so as to facilitate the movement and inspection of the seal. When the rear end of the support seat 3 fits with the limit block 4 at the rear end of the cross rail 2, the fixing plate 9 is directly released. At this time, the spring 10 restores its elastic deformation, pushing the fixing plate 9 to slide between the fixing block 8, so that the fixing plate 9 is inserted into the fixing hole 11 at the rear end of the cross rail 2, thereby facilitating the limit between the support seat 3 and the cross rail 2; Embodiment 2: In order to solve the problem in the prior art that during the inspection of the seal, the seal is in a stationary state, which makes it inconvenient to conduct all-round inspection of various positions on the seal, the present embodiment adopts the following technical scheme, a cylinder seal performance inspection device and an inspection method thereof, which comprises a reduction motor 12, a support plate 13, a movable column 14 and a limit rail 15, a reduction motor 12 for driving is fixedly installed in the middle of the support seat 3, and the output end of the reduction motor 12 is fixedly connected to the support plate 13, the left and right sides of the lower end of the support plate 13 are fixedly connected to the movable column 14, and a sliding structure is formed between the movable column 14 and the limit rail 15 in a ring structure, the limit rail 15 is fixedly connected to the upper end of the support seat 3, and the upper end of the support plate 13 is fixedly connected to the inspection table 16, as shown in FIG. Figure 1 , Figure 4 and Fig. 9 As shown, after the detection platform 16 moves backward to detect the lower end of the push plate 22, the reduction motor 12 is started, and the reduction motor 12 drives the support plate 13 to rotate slowly at the upper end of the support seat 3, so that the seal can be rotated together with the detection platform 16, and the seal can be rotated, so that each position of the seal can contact with the ball 30 to perform all-round detection. In addition, during the rotation of the support plate 13, the support plate 13 drives the movable column 14 to slide between the limit rail 15, which greatly improves the stability of the detection platform 16 during the rotation process.

[0020] Embodiment 3: In order to solve the problem that the detection method in the prior art is relatively single and it is not convenient to observe the entire detection result intuitively, this embodiment adopts the following technical scheme, a cylinder seal performance detection device and a detection method thereof, which are provided with a fixed bracket 20, an electric telescopic rod 21, a detection push plate 22, a movable sleeve 23, an auxiliary rod 24, a laser displacement sensor 25, a shooting device 26 and a detection component 27, the detection component 27 is arranged on the detection push plate 22 in a horizontal state, and the detection component 27 is composed of a detection rod 28, a scale code 29 and a ball 30, the fixed bracket 20 is fixedly connected to the rear side of the upper end of the base 1, and the upper end of the fixed bracket 20 is fixedly installed with an electric A detection push plate 22 is fixedly connected to the output end of the electric telescopic rod 21, and a movable sleeve 23 is fixedly connected to the left and right ends of the detection push plate 22. The movable sleeve 23 and the auxiliary rod 24 in a vertical state form an up and down sliding structure, and the auxiliary rod 24 is fixedly connected to the outer side of the fixed bracket 20. A laser displacement sensor 25 is fixedly installed in the middle of the upper end of the detection push plate 22, and a shooting device 26 is fixedly installed at the front and rear ends of the detection push plate 22. A plurality of detection rods 28 are telescopically connected to the detection push plate 22, and a scale code 29 is set on the front side of the detection rod 28. A ball 30 is rollingly set at the lower end of the detection rod 28, and the ball 30 is fitted at the upper end of the sealing member, such as Figure 1 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16 As shown, during the detection process, firstly, the number of detection rods 28 is increased or decreased according to the size of the seal, and the detection rods 28 can be directly pulled out upward for disassembly, so that the arrangement number of the detection rods 28 is close to the thickness of the seal. After the number of detection rods 28 is adjusted, the electric telescopic rod 21 is started to drive the detection push plate 22 to move downward, and the detection push plate 22 drives the movable sleeve 23 and the auxiliary rod 24 to slide, so as to improve the stability of the detection push plate 22 during the lifting process. The detection push plate 22 drives the detection rod 28 to move downward. When the ball 30 is fitted and arranged on the upper end of the seal, the detection push plate 22 still moves downward for a distance. The detection push plate 22 moves downward to the middle position of the upper end of the detection rod 28, that is, the detection push plate 22 moves to the middle position of the scale code 29, as shown in the figure. Fig.16In the state shown, the ball 30 is fitted on the upper end of the seal, and the various positions of the seal are magnified and photographed in combination with the shooting device 26. The shooting results are displayed through the display device, so that the smoothness of the outer surface of the seal can be observed. As the detection table 16 drives the seal to rotate slowly and the ball 30 and the seal are fitted, the ball 30 rolls on the lower end of the detection rod 28. When there are unevenness and potholes on the outer surface of the seal, the detection rod 28 is telescopically moved on the detection push plate 22 along with the potholes of the seal. Through the setting of the laser displacement sensor 25 and the scale code 29, the laser displacement sensor 25 monitors the displacement of the telescopic movement of the detection rod 28, and can measure the degree of potholes on the surface of the seal. At the same time, the measurement results are displayed through the display device, which is convenient for the detection personnel to observe the sealing performance of the seal.

[0021] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0022] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylinder seal performance testing device, comprising a base (1), a support base (3), a testing platform (16) and a fixed bracket (20), wherein a cross rail (2) is fixedly connected to the middle of the upper end of the base (1), and a display device is installed at the upper end of the fixed bracket (20); It is characterized in that Also includes: A fixing mechanism (5), the fixing mechanism (5) being symmetrically arranged on the left and right sides of the front side of the support seat (3), and a transverse rail (2) being arranged through the lower end of the support seat (3), a front-to-rear sliding structure being formed between the support seat (3) and the transverse rail (2), and the support seat (3) being arranged in close contact with the upper end of the base (1); The fixing mechanism (5) is used to limit the position between the support seat (3) and the cross rail (2), and the fixing mechanism (5) is composed of a handle (6), an auxiliary plate (7), a fixing block (8), a fixing plate (9) and a spring (10); A clamping mechanism, the clamping mechanism is arranged at the upper end of the support seat (3), and the clamping mechanism is composed of a screw rod (17), a vertical plate (18) and a clamping roller (19); A plurality of detection components (27) are provided, wherein the detection components (27) are arranged on a detection push plate (22) in a horizontal state, and the detection components (27) are composed of a detection rod (28), a scale code (29), and a ball (30).

2. The oil cylinder seal performance testing device according to claim 1, characterized in that: The front and rear ends of the cross rail (2) are fixedly connected to the limit block (4), and the limit block (4) and the support seat (3) are arranged in a close fit. The front and rear ends of the left and right sides of the cross rail (2) are provided with fixing holes (11), and the fixing holes (11) are inserted with fixing plates (9) for positioning.

3. The oil cylinder seal performance testing device according to claim 2, characterized in that: A left-right sliding structure is formed between the fixed plate (9) and the fixed block (8), and the fixed block (8) is fixedly connected to the front end of the auxiliary plate (7), the auxiliary plate (7) is fixedly connected to the front side of the lower end of the support seat (3), and a handle (6) is fixedly connected to the side of the auxiliary plate (7); At the same time, a spring (10) is provided between the auxiliary plate (7) and the fixed plate (9).

4. The oil cylinder seal performance testing device according to claim 1, characterized in that: A reduction motor (12) for driving is fixedly mounted in the middle of the support seat (3), and the output end of the reduction motor (12) is fixedly connected to a support plate (13), and movable columns (14) are fixedly connected to the left and right sides of the lower end of the support plate (13), and a sliding structure is formed between the movable column (14) and a limiting rail (15) in an annular structure, and the limiting rail (15) is fixedly connected to the upper end of the support seat (3).

5. The oil cylinder seal performance testing device according to claim 4, characterized in that: The upper end of the support plate (13) is fixedly connected to a detection platform (16).

6. The oil cylinder seal performance testing device according to claim 5, characterized in that: The middle part of the support plate (13) is rotatably connected to a screw rod (17) for adjustment, and both left and right ends of the screw rod (17) are threadedly connected to vertical plates (18), and the upper end of the vertical plate (18) is fixedly connected to a clamping roller (19), and the clamping roller (19) is slidably connected to the middle part of the detection platform (16); At the same time, the threads of the left and right ends of the screw rod (17) are in opposite directions, and a left-right sliding structure is formed between the lower end of the vertical plate (18) and the support plate (13).

7. The oil cylinder seal performance testing device according to claim 1, characterized in that: The fixed bracket (20) is fixedly connected to the rear side of the upper end of the base (1), and an electric telescopic rod (21) is fixedly installed on the upper end of the fixed bracket (20), the output end of the electric telescopic rod (21) is fixedly connected to a detection push plate (22), and the left and right ends of the detection push plate (22) are fixedly connected to movable sleeves (23), and the movable sleeve (23) and the auxiliary rod (24) in a vertical state form an up-and-down sliding structure, and the auxiliary rod (24) is fixedly connected to the outer side surface of the fixed bracket (20).

8. The oil cylinder seal performance testing device according to claim 7, characterized in that: A laser displacement sensor (25) is fixedly mounted in the middle of the upper end of the detection push plate (22), and a shooting device (26) is fixedly mounted at both the front and rear ends of the detection push plate (22).

9. The oil cylinder seal performance testing device according to claim 8, characterized in that: The detection push plate (22) is telescopically connected to a plurality of detection rods (28), and a scale code (29) is provided on the front side of the detection rod (28). A ball (30) is rollably provided at the lower end of the detection rod (28), and the ball (30) is fitted on the upper end of the sealing member.

10. A method for using the oil cylinder seal performance testing device according to claim 1, characterized in that: The method for using the oil cylinder seal performance testing device comprises the following steps: Step 1: placing the seal to be tested on the testing table (16), and clamping and positioning the seal by a clamping mechanism; Step 2: Move the seal backward for inspection via the cross rail (2) and the support seat (3) together with the inspection table (16); Step 3: During the inspection, the support plate (13) and the inspection platform (16) are rotated on the support seat (3), driving the sealing member to rotate so as to realize all-round inspection of the sealing member; Step 4: The seal performance is tested by combining the testing push plate (22), the laser displacement sensor (25), the shooting device (26) and the testing component (27), and the test result can be displayed through a display device.

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