Limiting tool for shock absorption performance test for shock absorber

Abstract

The invention discloses a shock absorber damping performance test limiting tool which comprises a detection table, a pushing base is installed at the top of the detection table, a clamping frame and a correcting frame are arranged at the top of the pushing base, the clamping frame and the correcting frame are matched to correct and clamp a shock absorber, and a sliding shaft is movably clamped in the clamping frame; a pair of limiting vertical rods installed on the pushing base is inserted into the correcting frame, a transmission sliding block is slidably arranged on one side of the correcting frame, a hinge frame is arranged on one side of the transmission sliding block, adjusting plates are installed at the two ends of the hinge frame, and clamping end plates are clamped to the outer ends of the adjusting plates. A pushing block abutting against the outer side of the shock absorber is arranged at one end of the clamping end plate. Compared with the prior art, by adopting the linkage design of the hinging frame, the arc-shaped pressing plate and the reset ring, the device can also be combined with a pressure-sensitive sensor and a resistance sensing function, and the offset state of the shock absorber can be monitored in real time in the testing process.

Description

Technical Field

[0001] The present invention relates to the technical field of shock absorber production, and specifically to a limit tooling for shock absorption performance testing of a shock absorber. Background Technique

[0002] As a core component of a vehicle suspension system, the performance of a motorcycle shock absorber directly affects driving safety, handling stability, and riding comfort. Under extreme road conditions or high-load working conditions, the compression / rebound stroke of the shock absorber is likely to exceed the design threshold, resulting in abnormal wear or even structural failure of internal components (such as damping valves and seals).

[0003] During the production process, it is necessary to sample and test shock absorbers in the same batch to reduce the unexpected situation of a large number of defective products. In traditional testing methods, fixed mechanical limit blocks are usually used to physically restrict the stroke of the shock absorber. There are technical problems that existing mechanical limit devices are mostly designed with a single size and cannot be compatible with the differences in the outer diameter and stroke parameters of different models of shock absorbers. During testing, it is necessary to frequently replace the fixtures, resulting in low operation efficiency and easy positioning deviation due to human error. For this reason, we propose a limit tooling for shock absorption performance testing of a shock absorber to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a limit tooling for shock absorption performance testing of a shock absorber to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A limit tooling for shock absorption performance testing of a shock absorber, including,

[0006] A detection table, on the top of which a pushing base is installed. A clamping frame and a correction frame are provided on the top of the pushing base. The clamping frame and the correction frame can cooperate to correct and clamp the shock absorber;

[0007] Among them, a sliding shaft is movably clamped inside the clamping frame, and the sliding shaft can adjust the position deviation of the hinge ring at the bottom of the shock absorber. A pair of limit vertical rods installed on the pushing base are inserted inside the correction frame. A transmission slider is slidably provided on one side of the correction frame. An articulated frame is provided on one side of the transmission slider. Adjusting plates are installed at both ends of the articulated frame. A clamping end plate is clamped outside the adjusting plate. A pushing block that abuts against the outside of the shock absorber is provided at one end of the clamping end plate. When it is necessary to test the shock absorber, it can be limited and clamped by means of the clamping frame and the correction frame, and the shock absorber can be clamped on the detection table. And subsequently, the limit top block can abut against the top end of the shock absorber. As the pushing base operates, the shock absorber can be continuously compressed, and the performance of the shock absorber under different pressures can be observed.

[0008] Preferably, the position of the clamping frame can be adjusted to control the clamping position of the shock absorber. Adjustably-mounted drive blocks are installed at both ends of the sliding shaft. A rectangular frame is installed on top of the drive block, and a fixed disk is installed on the rectangular frame. A clamping frustum is rotatably provided at one end of the fixed disk. The clamping frustums are symmetrically arranged and can clamp and limit the hinge ring at the bottom of the shock absorber.

[0009] Preferably, an annular groove for clamping a buffer washer is formed on the clamping frustum. A locking rod is inserted into the rear end of the fixed disk to clamp and limit the clamping frustum.

[0010] An arc-shaped groove is formed at the bottom of the sliding shaft, and a buffer backing plate is installed inside the arc-shaped groove for supporting the bottom of the shock absorber.

[0011] Preferably, a positioning rod is inserted into the sliding shaft. A plurality of limit jacks are formed at the bottom of the clamping frame. The positioning rod is clamped inside the limit jacks for adjusting the position of the sliding shaft. A straight groove is formed at the rear end of the sliding shaft, and a positioning shaft is installed inside the straight groove. The positioning shaft is clamped between the limit vertical rods.

[0012] Preferably, a set of hinge shafts are installed on the surface of the drive slider. A telescopic end block is installed at the rear end of the hinge frame. The telescopic end block is clamped between the hinge shafts. A pair of sliding grooves are formed on the hinge frame. The adjusting plate can move inside the sliding grooves for adjustment according to shock absorbers of different sizes.

[0013] Preferably, a rectangular groove is formed inside the adjusting plate. The pushing block is movably clamped inside the rectangular groove. A plurality of limit holes and a pair of clamping grooves are formed at the top of the adjusting plate. A limit plug is provided at the top of the adjusting plate. The bottom of the limit plug is provided with a through hole that abuts against the top of the pushing block for positioning. A clamping frame that is movably arranged inside the clamping groove is provided at the top of the limit plug for limiting the limit plug, and the position of the adjusting plate can be adjusted according to the actual size of the shock absorber, having good applicability.

[0014] Preferably, a transmission rod is installed at the rear end of the pushing block. An arc-shaped pressing plate is installed at the front end of the pushing block. Docking grooves are installed at both ends of the arc-shaped pressing plate. A hollow tube with an open side wall is installed inside the docking groove. A clamping shaft is rotatably arranged inside the hollow tube. A reset ring with an outer wall connected with a plurality of rubber pads is movably clamped on the surface of the clamping shaft. A through groove is formed on one side of the hollow tube corresponding to the docking groove.

[0015] Preferably, a transmission plate is clamped on the inner wall of the arc-shaped pressing plate. Both ends of the transmission plate are arc-shaped and can be compressed and deformed under the action of an external force. Both ends of the transmission plate abut against the reset ring. A plurality of fixed clamping shafts are installed on the surface of the transmission plate. Elastic sheets are installed at both ends of the fixed clamping shaft, and an adsorption plate is clamped between the elastic sheets. The adsorption plate is composed of a nylon mesh and a sponge gasket, which is used to abut against the surface of the shock absorber piston connecting rod for auxiliary correction and positioning. With the sponge gasket in the adsorption plate, the surface of the piston connecting rod is cleaned during the movement process, reducing the scratches on the surface of the piston connecting rod caused by residual debris on its surface and affecting the test results.

[0016] Preferably, a plurality of lifting rods are installed on the test bench, and a transmission table is movably clamped on the lifting rods. A transmission plate is arranged at the bottom of the transmission table, and a plurality of limiting top blocks are installed on the transmission plate. A reset hole is opened on the test bench. A pair of push shafts clamped inside the reset hole are installed at the bottom of the push base. A buffer cushion plate is installed on the test bench, and the buffer cushion plate is located directly below the push base to play a buffering role.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. Through the linkage design of the hinge frame, arc-shaped pressing plate and reset ring, and in combination with the pressure-sensitive sensor and resistance sensing function, the present invention can monitor the offset state of the shock absorber in real time during the test process, and intuitively judge whether the clamping is straightened through the resistance change curve or digital display feedback, effectively avoiding the distortion of test data caused by installation offset;

[0019] 2. Through the design of the adjustable sliding shaft, transmission block and clamping cone structure, and in cooperation with the sliding groove movement function of the adjusting plate, the tooling can flexibly adapt to shock absorber hinge rings and piston connecting rods with different diameters and lengths, significantly reducing the frequency of replacing special fixtures and improving the versatility of the test equipment;

[0020] 3. By setting buffer structures at key contact parts such as the clamping cone annular groove and the rubber cushion block of the reset ring, the present invention can reduce the mechanical wear on the surface of the bottom hinge hole of the shock absorber during the clamping process, and in cooperation with the buffer cushion plate, it can also disperse the test pressure during the detection impact process during the clamping process to ensure the clamping stability;

[0021] 4. By adopting a composite structure of nylon mesh and sponge for the adsorption plate, combined with the friction cleaning effect of the reset ring on the piston connecting rod, the present invention can automatically remove the residual oil and debris during the test process, facilitate replacement, further simplify the daily maintenance process, and improve the sustainable operation efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2Schematic diagram of the transmission seat structure of the present invention;

[0024] Figure 3 Schematic diagram of the pushing base structure of the present invention;

[0025] Figure 4 Of the present invention Figure 3 Partial enlarged schematic diagram at position A in;

[0026] Figure 5 Schematic diagram of the top structure of the clamping frame of the present invention;

[0027] Figure 6 Schematic diagram of one side structure of the correction frame of the present invention;

[0028] Figure 7 Schematic diagram of the clamping component structure of the present invention;

[0029] Figure 8 Of the present invention Figure 7 Partial enlarged schematic diagram at position B in;

[0030] In the figure: 1. Detection table; 2. Pushing base; 3. Clamping frame; 4. Correction frame; 5. Clamping end plate; 11. Transmission table; 12. Limit top block; 21. Pushing shaft; 31. Sliding shaft; 311. Positioning insertion rod; 32. Transmission block; 33. Fixed disk; 34. Clamping cone; 35. Positioning shaft; 41. Limit vertical rod; 42. Hinge frame; 421. Transmission slider; 43. Telescopic end block; 44. Adjusting plate; 45. Limit insertion block; 51. Pushing block; 511. Transmission insertion rod; 52. Arc pressing plate; 53. Hollow tube; 54. Clamping shaft; 541. Reset ring; 55. Transmission plate; 551. Fixed clamping shaft; 56. Adsorption plate. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-8 , the present invention provides a technical solution: a limit tooling for shock absorption performance testing of a shock absorber, including,

[0033] A detection table 1, on the top of which a pushing base 2 is installed. On the top of the pushing base 2, there are a clamping frame 3 and a correction frame 4. The clamping frame 3 and the correction frame 4 cooperate to correct and clamp the shock absorber;

[0034] Among them, a sliding shaft 31 is movably clamped inside the clamping frame 3. The sliding shaft 31 can adjust the position deviation of the hinge ring at the bottom of the shock absorber. A pair of limiting vertical rods 41 installed on the pushing base 2 are inserted inside the correcting frame 4. A transmission slider 421 is slidably arranged on one side of the correcting frame 4. An articulated frame 42 is arranged on one side of the transmission slider 421. Adjusting plates 44 are installed at both ends of the articulated frame 42. A clamping end plate 5 is clamped outside the adjusting plate 44. A pushing block 51 that abuts against the outside of the shock absorber is arranged at one end of the clamping end plate 5. When it is necessary to detect the shock absorber, the clamping frame 3 and the correcting frame 4 can be used to limit and clamp it, so that the shock absorber can be clamped on the test bench 1. And subsequently, the limiting top block 12 can abut against the top of the shock absorber. As the pushing base 2 operates, the shock absorber can be continuously compressed, and the performance of the shock absorber under different pressures can be observed from the side.

[0035] As Figure 3 and Figure 4 shown, in order to limit shock absorbers of different sizes, the position of the clamping frame 3 can be adjusted to control the clamping position of the shock absorber. Adjustable transmission blocks 32 are installed at both ends of the sliding shaft 31. A rectangular frame is installed on the top of the transmission block 32, and a fixed disk 33 is installed on the rectangular frame. A clamping frustum 34 is rotatably arranged at one end of the fixed disk 33. The clamping frustum 34 is symmetrically arranged. The position of the transmission block 32 can be adjusted to clamp the hinge ring at the bottom of the shock absorber inside the clamping frustum 34, which can play a limiting role.

[0036] As Figure 4 shown, in order to ensure the stability of the clamping and limiting of the equipment, an annular groove for clamping a buffer washer is opened on the clamping frustum 34. A locking clamping rod is inserted into the rear end of the fixed disk 33 to clamp and limit the clamping frustum 34. During the clamping process, with the cooperation of the buffer washer, it can be clamped into the hinge ring at the bottom of the shock absorber, reducing the wear during the clamping process and further ensuring the clamping stability;

[0037] An arc-shaped groove is opened at the bottom of the sliding shaft 31, and a buffer backing plate is installed inside the arc-shaped groove for supporting the bottom of the shock absorber. And the bottom of the shock absorber can abut against the buffer backing plate, playing an auxiliary supporting role.

[0038] As Figure 3As shown, in order to facilitate subsequent detection of whether the shock absorber clamping is offset, a positioning plug rod 311 is inserted on the sliding shaft 31. A plurality of limit jacks are opened at the bottom of the clamping frame 3. The positioning plug rod 311 is clamped inside the limit jack for position adjustment of the sliding shaft 31. A straight groove is opened at the rear end of the sliding shaft 31, and a positioning shaft 35 is installed inside the straight groove. The positioning shaft 35 is clamped between the limit vertical rods 41. The operator can push and pull the sliding shaft 31 to move, which can drive the overall shock absorber to tilt. At this time, the angles of the telescopic end block 43 and the hinge frame 42 can change. With the resistance feedback generated during the transmission process of the arc-shaped pressing plate 52, the operator can know whether the shock absorber is in a straight state.

[0039] As Figure 5 and Figure 6 shown, in order to adapt to shock absorbers of different sizes and reduce the frequency of replacing clamping accessories, a group of hinge shafts are installed on the surface of the transmission slider 421. The telescopic end block 43 is installed at the rear end of the hinge frame 42. The telescopic end block 43 is clamped between the hinge shafts. A pair of sliding grooves are opened on the hinge frame 42. The adjusting plate 44 can move inside the sliding grooves for adjustment according to shock absorbers of different sizes. The position of the adjusting plate 44 can be adjusted according to the actual situation, and the pushing block 51 can be abutted against the outer wall of the shock absorber to play an auxiliary supporting role.

[0040] As Figure 6 shown, in order to ensure the limiting effect of the equipment, a rectangular groove is opened inside the adjusting plate 44. The pushing block 51 is movably clamped inside the rectangular groove. A plurality of limit holes and a pair of clamping grooves are opened at the top of the adjusting plate 44. A limit plug 45 is provided at the top of the adjusting plate 44. The bottom of the limit plug 45 is provided with a through hole that abuts against the top of the pushing block 51 for positioning. The top of the limit plug 45 is provided with a clamping frame that is movably arranged inside the clamping groove for limiting the limit plug 45. When it is confirmed that the shock absorber clamping is straight and stable, the inward extrusion of the adjusting plate 44 can be adjusted, and the pushing block 51 can be abutted against both ends of the shock absorber to further enhance the clamping force, which can play a role in preventing offset during the subsequent pressure test of the shock absorber.

[0041] As Figure 7 and Figure 8As shown, in order to reduce the deviation during the clamping process, a transmission plug rod 511 is installed at the rear end of the push block 51, and an arc-shaped pressure plate 52 is installed at the front end of the push block 51. Docking grooves are installed at both ends of the arc-shaped pressure plate 52, and a hollow tube 53 with an open side wall is installed inside the docking groove. A clamping shaft 54 ​​is rotatably provided inside the hollow tube 53, and a reset ring 541 with a plurality of rubber pads connected to the outer wall is movably provided on the surface of the clamping shaft 54. A through groove is provided on the side of the hollow tube 53 corresponding to the docking groove. The angles of the telescopic end block 43 and the articulated frame 42 can be changed, so that the arc-shaped pressure plate 52 clamped on the surface of the piston connecting rod can slide along the surface of the piston connecting rod during the tilting process. During movement, when there is no problem with the shock absorber correction, the resistance generated during the sliding process is small, and the shock absorber can be tilted smoothly. When the shock absorber articulated ring is offset during the clamping process, the arc-shaped pressure plate 52 receives gradually increasing resistance as the tilt angle increases. Compared with direct observation with the naked eye, feeling the transmitted resistance can more intuitively detect whether there is a problem with the shock absorber clamping, and reduce the impact of subsequent shock absorber offset on the results of the performance test. In order to monitor more intuitively, a pressure-sensitive sensor and a digital display screen can be arranged inside the arc-shaped pressure plate 52, which can detect unexpected offset situations based on the curved edge of the pressure change, and has more intuitive feedback.

[0042] like Figure 8 As shown, a transmission plate 55 is clamped on the inner wall of the arc pressure plate 52, and both ends of the transmission plate 55 are arc-shaped and can be compressed and deformed under the action of external force. Both ends of the transmission plate 55 are against the reset ring 541. A plurality of fixed card shafts 551 are installed on the surface of the transmission plate 55, and elastic sheets are installed at both ends of the fixed card shaft 551, and an adsorption plate 56 is clamped between the elastic sheets. During the transmission process of the arc pressure plate 52, the reset ring 541 can continuously rub against the surface of the piston connecting rod, and can squeeze the two ends of the transmission plate 55 with the rubber pad on the surface of the reset ring 541, so that the transmission plate 55 can be compressed by force, and the adsorption plate 56 is driven to fit on the surface of the piston connecting rod for cleaning, thereby reducing the situation where oil and debris adhere to the surface of the piston connecting rod. The adsorption plate 56 is composed of a nylon mesh and a sponge gasket, which is used to abut against the surface of the shock absorber piston connecting rod to assist in correcting the limit, and with the help of the sponge plate, it can absorb excess oil on the surface of the piston connecting rod. In the monitoring process, the cleaning of lubricating oil leakage due to unexpected circumstances can be blocked with the help of the sponge plate, thereby reducing the time required for cleaning and maintenance.

[0043] like Figure 1 and Figure 2As shown, a plurality of lifting rods are installed on the testing platform 1, and a transmission platform 11 is movably provided on the lifting rods, a transmission plate is provided at the bottom of the transmission platform 11, and a plurality of limiting top blocks 12 are installed on the transmission plate, which can be against the top of the shock absorber for auxiliary limiting. A reset hole is opened on the testing platform 1, and a pair of pushing shafts 21 are installed at the bottom of the pushing base 2 and are clamped in the reset hole. A buffer pad is installed on the testing platform 1, and the buffer pad is located directly below the pushing base 2. Combined with the buffer pad, the vibration generated during the transmission of the pushing base 2 can be reduced.

[0044] Working principle: First, when the shock absorber needs to be tested, it can be clamped by the clamping frame 3 and the correction frame 4, so that the shock absorber can be clamped on the test bench 1, and the subsequent limiting top block 12 can be against the top of the shock absorber. As the base 2 is pushed to operate, the shock absorber can be continuously compressed, and the performance of the shock absorber under different pressures can be observed from the side. When limiting, the piston connecting rod at the bottom of the shock absorber is inserted into the correction frame 4, and the hinged ring at the bottom can be clamped between the clamping cones 34, so that the bottom of the shock absorber can be limited. As the piston connecting rod at the bottom of the shock absorber can be clamped between the arc-shaped pressure plates 52, it can play a role in auxiliary positioning and reduce the occurrence of offset during the clamping process.

[0045] Then, the position of the pushing block 51 is adjusted according to the size of the shock absorber, so that the arc-shaped pressure plate 52 can be fitted on the surface of the piston connecting rod. At this time, the operator can push and pull the sliding shaft 31 to move, which can drive the shock absorber as a whole to tilt. At this time, the angle of the telescopic end block 43 and the articulated frame 42 can be changed, so that the arc-shaped pressure plate 52 clamped on the surface of the piston connecting rod can slide along the surface of the piston connecting rod during the tilting process. During the sliding process, when there is no problem in correcting the shock absorber, the resistance generated during the sliding process is small, and the tilting of the shock absorber can be completed smoothly. When the shock absorber articulated ring is deviated during the clamping process, When the arc pressure plate 52 is shifted, the resistance gradually increases as the tilt angle increases. Compared with direct observation with the naked eye, feeling the transmission resistance can more intuitively detect whether there is a problem with the shock absorber clamping, reducing the impact of subsequent shock absorber offset on the performance test results. In addition, during the transmission of the arc pressure plate 52, the reset ring 541 can continue to rub against the surface of the piston connecting rod, and can squeeze the two ends of the transmission plate 55 with the rubber pad on the surface of the reset ring 541, so that the transmission plate 55 can be compressed and drive the adsorption plate 56 to fit on the surface of the piston connecting rod for cleaning, thereby reducing the adhesion of oil and debris on the surface of the piston connecting rod.

[0046] Finally, when it is confirmed that the shock absorber clamping is not offset, the sliding shaft 31 can be reset and the locking rod can be pushed into the clamping cone 34 to play a limiting role. The transmission platform 11 moves and the top limiting top block 12 can be pressed against the top of the shock absorber, which is convenient for the subsequent pushing of the base 2 to test the various performances of the shock absorber.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A limit tooling for shock absorption performance testing of a shock absorber, characterized in that: Including, a detection table (1) with a pushing base (2) installed on its top. A clamping frame (3) and a correction frame (4) are provided on the top of the pushing base (2). The clamping frame (3) and the correction frame (4) can cooperate to correct and clamp the shock absorber. Among them, a sliding shaft (31) is movably clamped inside the clamping frame (3). The sliding shaft (31) can adjust the position offset of the hinge ring at the bottom of the shock absorber. A pair of limiting vertical rods (41) installed on the pushing base (2) are inserted inside the correction frame (4). A transmission slider (421) is slidably arranged on one side of the correction frame (4). An articulated frame (42) is provided on one side of the transmission slider (421). Adjusting plates (44) are installed at both ends of the articulated frame (42). A clamping end plate (5) is clamped at the outer end of the adjusting plate (44). A pushing block (51) that abuts against the outside of the shock absorber is provided at one end of the clamping end plate (5).

2. The shock absorber limiting tool for shock absorption performance testing according to claim 1, characterized in that: The position of the clamping frame (3) can be adjusted to control the clamping position of the shock absorber. Adjustable transmission blocks (32) are installed at both ends of the sliding shaft (31). A rectangular frame is installed on the transmission block (32), and a fixed disk (33) is installed on the rectangular frame. A clamping cone (34) is rotatably arranged at one end of the fixed disk (33). The clamping cones (34) are symmetrically arranged.

3. The shock absorber limiting tooling for shock absorption performance testing according to claim 2, characterized in that: An annular groove for clamping a buffer washer is formed on the clamping cone (34). A locking rod is inserted into the rear end of the fixed disk (33) to clamp and limit the clamping cone (34). An arc-shaped groove is formed at the bottom of the sliding shaft (31), and a buffer backing plate is installed inside the arc-shaped groove for supporting the bottom of the shock absorber.

4. The shock absorber limiting tooling for shock absorption performance testing according to claim 1, wherein: A positioning insertion rod (311) is inserted into the sliding shaft (31). A plurality of limiting insertion holes are formed at the bottom of the clamping frame (3). The positioning insertion rod (311) is clamped inside the limiting insertion holes for adjusting the position of the sliding shaft (31). A straight groove is formed at the rear end of the sliding shaft (31), and a positioning shaft (35) is installed inside the straight groove. The positioning shaft (35) is clamped between the limiting vertical rods (41).

5. The shock absorber limiting tooling for shock absorption performance testing according to claim 1, characterized in that: A group of articulated shafts are installed on the surface of the transmission slider (421). A telescopic end block (43) is installed at the rear end of the articulated frame (42). The telescopic end block (43) is clamped between the articulated shafts. A pair of sliding grooves are formed on the articulated frame (42). The adjusting plate (44) can move inside the sliding grooves for adjustment according to shock absorbers of different sizes.

6. The shock absorber limiting tooling for shock absorption performance testing according to claim 1, characterized in that: A rectangular groove is formed inside the adjusting plate (44). The pushing block (51) is movably clamped inside the rectangular groove. A plurality of limiting holes and a pair of clamping grooves are formed at the top of the adjusting plate (44). A limiting insertion block (45) is provided at the top of the adjusting plate (44). A bottom portion of the limiting insertion block (45) is provided with a portion that penetrates the limiting hole and abuts against the top of the pushing block (51) for positioning. A clamping frame that is movably arranged inside the clamping groove is provided at the top of the limiting insertion block (45) for limiting the limiting insertion block (45).

7. The shock absorber limiting tooling for shock absorption performance testing according to claim 1, characterized in that: A transmission insertion rod (511) is installed at the rear end of the pushing block (51). An arc-shaped pressing plate (52) is installed at the front end of the pushing block (51). Docking grooves are installed at both ends of the arc-shaped pressing plate (52), and a hollow tube (53) with an open side wall is installed inside the docking grooves. A clamping shaft (54) is rotatably arranged inside the hollow tube (53). A reset ring (541) with a plurality of rubber pads connected to its outer wall is movably clamped on the surface of the clamping shaft (54). A through groove is formed on one side of the hollow tube (53) corresponding to the docking groove.

8. The shock absorber limiting tooling for shock absorption performance testing according to claim 7, characterized in that: A transmission plate (55) is clamped on the inner wall of the arc-shaped pressing plate (52). Both ends of the transmission plate (55) are arc-shaped and can be compressed and deformed under the action of an external force. Both ends of the transmission plate (55) are abutted against the reset ring (541). A plurality of fixed clamping shafts (551) are installed on the surface of the transmission plate (55). Elastic sheets are installed at both ends of the fixed clamping shafts (551), and an adsorption plate (56) is clamped between the elastic sheets. The adsorption plate (56) is composed of a nylon mesh and a sponge gasket and is used to abut against the surface of the shock absorber piston connecting rod for auxiliary correction and limiting.

9. The shock absorber limiting tooling for shock absorption performance testing according to claim 1, characterized in that: A plurality of lifting rods are installed on the inspection table (1), and a transmission table (11) is movably clamped on the lifting rods. A transmission plate is arranged at the bottom of the transmission table (11), and a plurality of limiting top blocks (12) are installed on the transmission plate. A reset hole is formed on the inspection table (1). A pair of pushing shafts (21) clamped inside the reset hole are installed at the bottom of the pushing base (2). A buffer cushion plate is installed on the inspection table (1), and the buffer cushion plate is located directly below the pushing base (2).

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