Disassembling and assembling device for snap ring of upper end cover of automobile air damper

Abstract

An automobile air damper upper end cover snap ring dismounting device comprises a pressure transmission mechanism and a workpiece hoisting mechanism. The pressure transmission mechanism is provided with a fixing frame assembly, a lead screw nut lifting assembly and a pressing block, the fixing frame assembly is assembled with the workpiece hoisting mechanism, a horizontal cross beam is arranged on the fixing frame assembly, an axial long hole is formed in the horizontal cross beam, and the lead screw nut lifting assembly is assembled with the axial long hole in the horizontal cross beam; the workpiece hoisting mechanism is provided with a base, a supporting stand column, a tray and a hanging bracket assembly, the upper end and the lower end of the supporting stand column are fixedly connected with the base and the tray respectively, the tray is a disc with a center hole, a plurality of arc-shaped long holes are formed in the tray in the circumferential direction, and the hanging bracket assembly is assembled in the arc-shaped long holes. The number of the hanging bracket assemblies is matched with the number of bolts at the upper ends of workpieces. According to the utility model, the damage-free disassembly and assembly of the air bag of the automobile air damper are ensured, and the purposes of reducing the maintenance cost of an automobile and improving the working efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of special tooling for automobile repair and maintenance, in particular to a disassembly and assembly device for an upper end cover clamping ring of an air shock absorber in an automobile suspension system. Background Art

[0002] With the continuous development of automobile technology, in order to provide customers with an excellent driving experience, the suspension system shock absorber on high-end cars adopts an air spring structure, which uses an air spring with an air bag as an elastic element. When the spring is working, the air bag is deployed on the piston, and the air bag between the upper end cover of the shock absorber and the piston is clamped and fixed by a snap ring. The shock absorber is installed on the vehicle chassis through a set of bolts arranged on its upper end.

[0003] In order to ensure the reliability of the air spring performance of the automobile suspension system, the air spring needs to be maintained and replaced after the elastic airbag has been used for a long time or has reached its design life. However, since the air spring assembly structure is very precise and compact, the disassembly and assembly of parts is very difficult. At present, for the disassembly of the airbag, most of the destructive local cutting method is used to remove the retaining ring to separate the airbag from the upper end cover, which not only increases the maintenance cost of the vehicle, but also has the problem of low work efficiency. Utility Model Content

[0004] The utility model provides a device for disassembling and assembling a clamping ring of an upper end cover of an automobile air shock absorber, which aims to optimize the design of a pressure transmission mechanism and a workpiece hoisting mechanism, and exert pressure on the upper end cover of the air shock absorber through the cooperation between the two to make it move in the direction of airbag compression to avoid the clamping ring disassembly and assembly space, thereby realizing non-destructive disassembly and assembly of the airbag of the automobile air shock absorber, thereby achieving the purpose of reducing vehicle maintenance costs and improving work efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for disassembling and assembling a clamping ring of an upper end cover of an automobile air shock absorber comprises a pressure transmission mechanism and a workpiece lifting mechanism; the pressure transmission mechanism is provided with a fixing frame assembly, a screw nut lifting assembly and a pressure block, the fixing frame assembly is matched with the workpiece lifting mechanism, a horizontal beam is provided on the fixing frame assembly, an axial long hole is provided on the horizontal beam, and the screw nut lifting assembly is matched with the axial long hole on the horizontal beam; the workpiece lifting mechanism is provided with a base, a supporting column, a tray and a hanger assembly, the upper and lower ends of the supporting column are fixedly connected to the base and the tray respectively, the tray is a circular disk with a center hole, a plurality of arc-shaped long holes concentric with the center hole are provided on the tray along the circumferential direction, a hanger assembly is equipped in the arc-shaped long hole, the number of the hanger assemblies matches the number of bolts on the upper end of the workpiece, and the workpiece is hoisted on the inner side of the center hole of the tray through the cooperation of the hanger assembly and the bolts.

[0007] The above-mentioned automobile air shock absorber upper end cover clamping ring disassembly and assembly device, the fixed frame assembly of the pressure transmission mechanism is also provided with a clamping seat and a horizontal beam support; the clamping seat is an arc-shaped clamping seat that matches the outer diameter size of the tray in the workpiece lifting mechanism, and two groups are arranged symmetrically on the left and right, and a clamping groove is provided on the inner side wall of each group of clamping seats. The clamping groove is mounted on the edge of the tray in a clearance fit manner, and the horizontal beam support is fixedly connected to the top surfaces of the two groups of clamping seats; the two groups of horizontal beam supports are respectively hingedly assembled with the two ends of the horizontal beam.

[0008] The above-mentioned automobile air shock absorber upper end cover clamping ring disassembly and assembly device, the screw nut lifting assembly includes a sleeve, a screw and a first locking nut, the upper end of the sleeve has a flange extending outward, the inner wall of the sleeve is provided with an internal thread matching the screw, and the lower end of the outer wall of the sleeve is provided with an external thread. After the sleeve passes through the axial long hole on the horizontal beam, the external thread at the lower end is assembled with the first locking nut; the screw and the sleeve are assembled to form a screw nut transmission structure.

[0009] The above-mentioned automobile air shock absorber upper end cover clamp assembly and disassembly device has a threaded hole on the upper part of the pressure block that matches the screw in the screw nut lifting assembly, and an avoidance groove matching the boss structure at the air nozzle of the upper end cover of the workpiece is provided on the bottom surface of the pressure block.

[0010] The above-mentioned automobile air shock absorber upper end cover clamping ring disassembly and assembly device is provided with a square tenon structure matched with a screwing tool at the upper end of the screw of the screw nut lifting assembly.

[0011] The above-mentioned automobile air shock absorber upper end cover clamping ring disassembly and assembly device, the hanger assembly includes a support rod, a support rod seat and a second locking nut; the lower end of the support rod seat is provided with a screw rod, the screw rod at the lower end of the support rod seat passes through the arc-shaped long hole of the tray and is fixed by the second locking nut, and a support rod through hole is also provided on the support rod seat; the support rod is assembled in the support rod through hole in a clearance fit manner, and a bolt through hole is provided on the inner end of the support rod to cooperate with the upper end bolt of the workpiece.

[0012] In the above-mentioned automobile air shock absorber upper end cover clamp assembly and disassembly device, the support rod passing hole on the support rod seat is a horizontally arranged polygonal through hole, and the support rod is a multi-prism rod, and the two form an anti-rotation structure after assembly.

[0013] The above-mentioned automobile air shock absorber upper end cover clamping ring disassembly and assembly device is provided with a roller and an anchor bolt assembly under the base of the workpiece hoisting mechanism.

[0014] The above-mentioned automobile air shock absorber upper end cover clamping ring disassembly and assembly device has a handle on the outer side of the clamping seat of the fixing frame assembly in the pressure transmission mechanism.

[0015] In the above-mentioned automobile air shock absorber upper cover clamping ring disassembly and assembly device, the number of supporting columns in the workpiece lifting mechanism is not less than three groups, which are evenly arranged along the circumference of the tray.

[0016] The utility model provides a disassembly and assembly device for the upper end cover clamp ring of an automobile air shock absorber, which can be used to hang and fix the workpiece through the cooperation of a hanger assembly and the upper end bolt of the workpiece, and a plurality of arc-shaped long holes are arranged on the tray of the hanger assembly, so that the hanger assembly equipped in the arc-shaped long holes can be adjusted in position along the circumference of the tray, and at the same time, the support rod and the support rod seat in the hanger assembly are assembled in a clearance fit manner, and the position of the inner end bolt through the hole of the support rod can be adjusted along the radial direction of the tray. Therefore, the utility model realizes the adjustment of the relative position of the workpiece and the workpiece hanging mechanism through the above structure; the utility model provides an axial long hole on the horizontal beam in the pressure transmission mechanism, and the workpiece installed in the axial long hole can be adjusted. The screw nut lifting assembly is used to adjust the horizontal position, and at the same time, slots are set on the inner side walls of the left and right groups of card seats of the pressure transmission mechanism fixing frame assembly. The two groups of card seats can slide along the edge of the tray through the slots to adjust the angle of the horizontal beam, so that the avoidance groove on the bottom surface of the pressure block installed at the lower end of the screw corresponds to the boss structure at the air nozzle of the upper end cover of the workpiece; after the position adjustment and fixation of the workpiece and the pressure transmission mechanism are completed by the utility model, under the action of the rotational torque applied to the screw, the screw nut lifting assembly drives the pressure block to move downward, and evenly applies force to the center position of the upper end cover of the workpiece to be disassembled and assembled, and pushes the upper end cover of the workpiece to be disassembled and assembled to move in the direction of airbag compression to avoid the space for disassembly and assembly of the clamp ring. It can be seen that the utility model can be applied to automobile air shock absorber workpieces of different structural types through the cooperation of the pressure transmission mechanism and the workpiece lifting mechanism, ensuring the damage-free disassembly and assembly of the automobile air shock absorber airbag, thereby achieving the purpose of reducing vehicle maintenance costs and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of an automobile air shock absorber;

[0018] Figure 2 yes Figure 1 A top view of

[0019] Figure 3 yes Figure 2 Schematic diagram of the AA section structure;

[0020] Figure 4 It is a schematic diagram of the structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the pressure transmission mechanism of the utility model

[0022] Figure 6 yes Figure 5 Exploded diagram of the structure;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the pressure block in the pressure transmission mechanism;

[0024] Figure 8 yes Fig. 9 Bottom view of

[0025] Fig. 9 It is a schematic diagram of the workpiece hoisting mechanism of the utility model of the present invention;

[0026] Fig.10 It is a schematic diagram of the structure of the hanger assembly in the workpiece lifting mechanism.

[0027] Explanation of the symbols in the figure:

[0028] 1 is the automobile air shock absorber (i.e. the workpiece)

[0029] 1-1 is the upper end head, 1-2 is the bolt, 1-3 is the upper end cover, 1-4 is the boss structure at the air nozzle of the upper end cover, 1-5 is the air bag, and 1-6 is the clamping ring;

[0030] 2 is the snap ring disassembly and assembly device

[0031] 2-1 is the pressure transmission mechanism

[0032] 2-1-1 is a fixing frame assembly, 2-1-1-1 is a horizontal beam, 2-1-1-2 is an axial long hole, 2-1-1-3 is a pin shaft, 2-1-1-4 is a horizontal beam support, 2-1-1-5 is a clamping seat, 2-1-1-6 is a clamping slot, and 2-1-1-7 is a handle;

[0033] 2-1-2 is a screw nut lifting assembly, 2-1-2-1 is a screw, 2-1-2-2 is a sleeve, 2-1-2-3 is a first locking nut, and 2-1-2-4 is a square tenon structure;

[0034] 2-1-3 is a pressure block, 2-1-3-1 is a threaded hole, and 2-1-3-2 is an avoidance groove;

[0035] 2-2 is the workpiece lifting mechanism, 2-2-1 is the pallet, 2-2-2 is the arc-shaped long hole, 2-2-3 is the hanger assembly, 2-2-3-1 is the support rod seat, 2-2-3-2 is the support rod, 2-2-3-3 is the second locking nut, 2-2-3-4 is the bolt through hole, 2-2-4 is the supporting column, 2-2-5 is the base, and 2-2-6 is the roller and anchor bolt assembly. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] See Figure 1. Figure 2 , Figure 3At present, the suspension system shock absorber on high-end cars adopts an air spring structure, which uses an air spring with an air bag as an elastic element, so it is called an automobile air shock absorber. Figure 1 An automobile air shock absorber 1 is provided, wherein an air bag 1-5 between an upper end cover 1-3 and a piston is clamped and fixed by a retaining ring 1-6, and the shock absorber body is mounted on the chassis of the vehicle through a group of bolts 1-2 uniformly arranged circumferentially at its upper end 1-1. In order to ensure the stable performance of the air spring of the automobile suspension system and the driving comfort of the vehicle, after the air bag 1-5 made of elastic material has been used for a long time or has reached its design life, the air spring needs to be maintained and the air bag 1-5 made of elastic material needs to be replaced. However, the assembly structure of the air spring is very precise and compact, and the disassembly and assembly of parts is very difficult. At present, the disassembly of the air bag mostly adopts a destructive local cutting method to remove the retaining ring 1-6, so that the air bag 1-5 is separated from the upper end cover 1-3, which not only increases the maintenance cost of the vehicle, but also has the problem of low work efficiency.

[0038] See also Figure 4 , Figure 5 , Fig. 9 In order to realize the damage-free disassembly and assembly of the upper end cover snap ring of the automobile air shock absorber 1, the utility model provides a disassembly and assembly device of the upper end cover snap ring of the automobile air shock absorber, the snap ring disassembly and assembly device 2 comprises a pressure transmission mechanism 2-1 and a workpiece hoisting mechanism 2-2; the workpiece hoisting mechanism 2-2 is placed on a horizontal ground, and a roller and an anchor bolt assembly 2-2-6 are provided at the bottom thereof, so as to realize the conversion between different working locations, the workpiece hoisting mechanism 2-2 is used for hoisting and fixing the automobile air shock absorber 1 to be disassembled and assembled, and a pressure transmission mechanism 2-1 is arranged on the upper end of the workpiece hoisting mechanism 2-2, and the torque of the force-applying tool can be transmitted to the workpiece to be disassembled and assembled through the pressure transmission mechanism 2-1, so as to apply downward pressure to the upper end cover 1-3 of the automobile air shock absorber 1, push the upper end cover 1-3 to move in the compression direction of the airbag 1-5, avoid the disassembly and assembly space of the snap ring 1-6, and realize the damage-free disassembly and assembly of the snap ring 1-6.

[0039] See also Figure 5 , Figure 6The utility model discloses an automobile air shock absorber upper cover snap ring disassembly and assembly device, and its pressure transmission mechanism 2-1 is provided with a fixing frame assembly 2-1-1, a screw nut lifting assembly 2-1-2 and a pressure block 2-1-3; the fixing frame assembly 2-1-1 is provided with a horizontal beam 2-1-1-1, a clamping seat 2-1-1-5 and a horizontal beam support 2-1-1-4, an axial long hole 2-1-1-2 is provided on the horizontal beam 2-1-1-1, the clamping seat 2-1-1-5 is an arc-shaped clamping seat, and two groups are arranged symmetrically on the left and right, and a clamping groove 2-1-1-6 is provided on the inner side wall of each group of clamping seats 2-1-1-5, and a horizontal beam support 2-1-1-4 is fixedly connected to the top surface of the clamping seat 2-1-1-5, and the two groups of horizontal beam supports 2-1-1-4 are respectively hingedly assembled with the two ends of the horizontal beam 2-1-1-1 through pins 2-1-1-3.

[0040] Still viewing Figure 5 , Figure 6 The automobile air shock absorber upper end cover clamping ring disassembly and assembly device described in the utility model, the screw nut lifting assembly 2-1-2 of the pressure transmission mechanism 2-1 includes a sleeve 2-1-2-2, a screw 2-1-2-1 and a first locking nut 2-1-2-3; the upper end of the sleeve 2-1-2-2 has a flange extending outward, the inner wall of the sleeve 2-1-2-2 is provided with an internal thread matching the screw 2-1-2-1, and the lower end of the outer wall of the sleeve 2-1-2-2 is provided with an external thread, the lower end of the sleeve 2-1-2-2 passes through the axial long hole 2-1-1-2 on the horizontal beam 2-1-1-1, and is assembled with the first locking nut 2-1-2-3 through the external thread; the screw 2-1-2-1 and the sleeve 2-1-2-2 are assembled to form a screw nut transmission structure, and a square tenon structure 2-1-2-4 matching the screw tool is provided at the upper end of the screw 2-1-2-1.

[0041] See also Figure 5 , Figure 6 , Figure 7 , Figure 8 The automobile air shock absorber upper cover clamp assembly and disassembly device described in the utility model has a pressure transmission mechanism 2-1 in which a pressure block 2-1-3 is provided with a threaded hole 2-1-3-1 on the upper part thereof, which cooperates with the screw 2-1-2-1 in the screw nut lifting assembly 2-1-2, and a avoidance groove 2-1-3-2 matching the boss structure 1-4 at the air nozzle of the upper end cover of the workpiece is provided on the bottom surface of the pressure block 2-1-3.

[0042] See also Figure 4 , Fig. 9The utility model of the automobile air shock absorber upper cover clamping ring disassembly and assembly device, its workpiece hoisting mechanism 2-2 is provided with a base 2-2-5, a supporting column 2-2-4, a tray 2-2-1 and a hanger assembly 2-2-3; the upper and lower ends of the supporting column 2-2-4 are respectively fixedly connected with the base 2-2-5 and the tray 2-2-1; the tray 2-2-1 is a disk with a center hole, and the two groups of card seats 2-1-1-5 of the fixed frame assembly 2-1-1 in the pressure transmission mechanism 2-1 have a card slot 2-1-1-6 on the inner side wall with a space between them. The holder 2-1-1-5 is mounted on the edge of the tray 2-2-1 in a gap-fitting manner so that the holder 2-1-1-5 can slide along the edge of the tray 2-2-1. The tray 2-2-1 is provided with a plurality of arc-shaped long holes 2-2-2 which are concentric with the center hole thereof. Hanger assemblies 2-2-3 are mounted in the arc-shaped long holes 2-2-2. The number of the hanger assemblies 2-2-3 matches the number of the bolts 1-2 on the upper end 1-1 of the workpiece. The workpiece is hung on the inner side of the center hole of the tray 2-2-1 by the hanger assemblies 2-2-3 in cooperation with the bolts 1-2.

[0043] See also Figure 4 , Fig. 9 , Fig.10 The utility model of the automobile air shock absorber upper cover clamping ring disassembly and assembly device, the workpiece hoisting mechanism 2-2 of the hanger assembly 2-2-3 includes a support rod 2-2-3-2, a support rod seat 2-2-3-1 and a second locking nut 2-2-3-3; the support rod seat 2-2-3-1 has a screw at the lower end, and the screw at the lower end of the support rod seat passes through the arc-shaped long hole 2-2-2 of the tray 2-2-1 and is fixed by the second locking nut 2-2-3-3. -2-3-1 is also provided with a support rod through hole, which is a horizontally arranged polygonal through hole; the support rod 2-2-3-2 is a multi-prism rod, and the support rod 2-2-3-2 is assembled with the support rod through hole on the support rod seat 2-2-3-1 in a clearance fit manner, and the two are assembled to form an anti-rotation structure, and a bolt through hole 2-2-3-4 matching the size of the bolt 1-2 on the upper end 1-1 of the workpiece is provided at the inner end of the support rod 2-2-3-2.

[0044] See also Figures 1 to 10When the utility model is used to disassemble and assemble the upper end cover clamping ring of the automobile air shock absorber, firstly, the position of the hanger assembly 2-2-3 in the workpiece hoisting mechanism 2-2 is adjusted, and the relative position between the support rod 2-2-3-2 and the support rod seat 2-2-3-1 in the hanger assembly 2-2-3 is adjusted, so that the bolt passing hole 2-2-3-4 at the inner end of the support rod 2-2-3-2 is aligned with the position of the bolt 1-2 of the upper end head 1-1 of the workpiece, and then the hanger assembly 2-2-3 of the workpiece hoisting mechanism 2-2 cooperates with the bolt 1-2 of the upper end head 1-1 of the workpiece to hoist and fix the workpiece; the screw nut lifting assembly 2-1-2 in the pressure transmission mechanism 2-1 is assembled with the horizontal beam 2-1-1-1, and the screw nut lifting assembly installed in the axial long hole 2-1-1-2 is horizontally moved through the axial long hole 2-1-1-2 provided on the horizontal beam 2-1-1-1. The position is adjusted, and at the same time, the left and right groups of card seats 2-1-1-5 in the fixed frame assembly 2-1-1 are made to slide along the edge of the tray 2-2-1 through the card grooves 2-1-1-6 on the inner walls of the left and right groups of card seats 2-1-1-5, so as to adjust the angle of the horizontal beam 2-1-1-1, so that the bottom avoidance groove of the pressure block 2-1-3 installed at the lower end of the screw rod 2-1-2-1 corresponds to the boss structure 1-4 at the air nozzle of the upper end cover of the workpiece; after completing the position adjustment of the automobile air shock absorber 1 workpiece and the pressure transmission mechanism 2-1, under the action of the rotational torque applied to the screw rod 2-1-2-1, the screw rod nut lifting assembly 2-1-2 drives the pressure block 2-1-3 to move downward, so as to evenly apply force to the center position of the upper end cover 1-3 of the workpiece to be disassembled, and push the upper end cover 1-3 of the workpiece to be disassembled to move in the compression direction of the airbag 1-5, avoid the disassembly space of the snap ring 1-6, and then disassemble the snap ring 1-6.

Claims

1. A device for disassembling and assembling the clamping ring of the upper end cover of an automobile air shock absorber, characterized in that: The clamping ring disassembly and assembly device (2) comprises a pressure transmission mechanism (2-1) and a workpiece hoisting mechanism (2-2); the pressure transmission mechanism (2-1) is provided with a fixed frame assembly (2-1-1), a screw nut lifting assembly (2-1-2) and a pressure block (2-1-3); the fixed frame assembly (2-1-1) is matched with the workpiece hoisting mechanism (2-2); a horizontal beam (2-1-1-1) is provided on the fixed frame assembly (2-1-1); an axial long hole (2-1-1-2) is provided on the horizontal beam (2-1-1-1); the screw nut lifting assembly (2-1-2) is matched with the axial long hole (2-1-1-2) on the horizontal beam (2-1-1-1); the workpiece hoisting mechanism (2-2) is provided with a base (2-2-5), A support column (2-2-4), a tray (2-2-1) and a hanger assembly (2-2-3), wherein the upper and lower ends of the support column (2-2-4) are respectively fixedly connected to a base (2-2-5) and a tray (2-2-1), the tray (2-2-1) being a disk with a center hole, a plurality of arc-shaped long holes (2-2-2) concentric with the center hole are arranged on the tray (2-2-1) along the circumferential direction, and the hanger assembly (2-2-3) is mounted in the arc-shaped long holes (2-2-2), the number of the hanger assembly (2-2-3) matches the number of the bolts (1-2) on the upper end (1-1) of the workpiece, and the workpiece is hung on the inner side of the center hole of the tray (2-2-1) by the hanger assembly (2-2-3) cooperating with the bolts (1-2).

2. The device for disassembling and assembling the upper end cover snap ring of the automobile air shock absorber according to claim 1, characterized in that: The fixing frame assembly (2-1-1) of the pressure transmission mechanism (2-1) is also provided with a clamping seat (2-1-1-5) and a horizontal beam support (2-1-1-4); the clamping seat (2-1-1-5) is an arc-shaped clamping seat matching the outer diameter size of the tray (2-2-1) in the workpiece lifting mechanism (2-2), and two groups are arranged symmetrically on the left and right, and a clamping groove (2-1-1-6) is provided on the inner side wall of each group of clamping seats (2-1-1-5), and the clamping groove (2-1-1-6) is sleeved on the edge of the tray (2-2-1) in a clearance fit manner, and the horizontal beam support (2-1-1-4) is fixedly connected to the top surfaces of the two groups of clamping seats (2-1-1-5); the two groups of horizontal beam supports (2-1-1-4) are respectively hingedly assembled with the two ends of the horizontal beam (2-1-1-1).

3. The device for disassembling and assembling the upper end cover snap ring of the automobile air shock absorber according to claim 2, characterized in that: The screw nut lifting assembly (2-1-2) comprises a sleeve (2-1-2-2), a screw (2-1-2-1) and a first locking nut (2-1-2-3); the upper end of the sleeve (2-1-2-2) is provided with a flange extending outward, the inner wall of the sleeve (2-1-2-2) is provided with an internal thread matching the screw, and the lower end of the outer wall of the sleeve (2-1-2-2) is provided with an external thread; after the sleeve (2-1-2-2) passes through the axial long hole (2-1-1-2) on the horizontal beam (2-1-1-1), the external thread at the lower end is assembled with the first locking nut (2-1-2-3); the screw (2-1-2-1) and the sleeve (2-1-2-2) are assembled to form a screw nut transmission structure.

4. The device for disassembling and assembling the upper end cover snap ring of the automobile air shock absorber according to claim 3, characterized in that: The upper portion of the pressing block (2-1-3) is provided with a threaded hole (2-1-3-1) that matches the screw (2-1-2-1) in the screw nut lifting assembly (2-1-2), and the bottom surface of the pressing block (2-1-3) is provided with an avoidance groove (2-1-3-2) that matches the boss structure (1-4) at the air nozzle of the upper end cover of the workpiece.

5. The device for disassembling and assembling the upper end cover snap ring of the automobile air shock absorber according to claim 4, characterized in that: A square tenon structure (2-1-2-4) that cooperates with a screwing tool is provided at the upper end of the screw rod (2-1-2-1) of the screw rod nut lifting assembly (2-1-2).

6. The device for disassembling and assembling the clamping ring of the upper end cover of the automobile air shock absorber according to any one of claims 1 to 5, characterized in that: The hanger assembly (2-2-3) comprises a support rod (2-2-3-2), a support rod seat (2-2-3-1) and a second locking nut (2-2-3-3); the support rod seat (2-2-3-1) has a screw at its lower end, the screw at the lower end of the support rod seat passes through an arc-shaped long hole (2-2-2) of the tray (2-2-1) and is fixed by the second locking nut (2-2-3-3); the support rod seat (2-2-3-1) is also provided with a support rod through hole; the support rod (2-2-3-2) is assembled in a clearance fit manner through the support rod through hole, and a bolt through hole (2-2-3-4) is provided at the inner side end of the support rod (2-2-3-2) and is matched with a bolt (1-2) of an upper end (1-1) of a workpiece.

7. The device for disassembling and assembling the upper end cover snap ring of the automobile air shock absorber according to claim 6, characterized in that: The support rod through hole on the support rod seat (2-2-3-1) is a horizontally arranged polygonal through hole, and the support rod (2-2-3-2) is a multi-prism rod, and the two are assembled to form an anti-rotation structure.

8. The device for disassembling and assembling the upper end cover snap ring of the automobile air shock absorber according to claim 7, characterized in that: A roller (2-2-6) and an anchor bolt assembly are provided below the base (2-2-5) of the workpiece hoisting mechanism (2-2).

9. The device for disassembling and assembling the upper end cover snap ring of the automobile air shock absorber according to claim 8, characterized in that: A handle (2-1-1-7) is provided on the outer side of a holder (2-1-1-5) of a fixed frame assembly (2-1-1) in the pressure transmission mechanism (2-1).

10. The device for disassembling and assembling the upper end cover snap ring of the automobile air shock absorber according to claim 8, characterized in that: The number of supporting columns (2-2-4) in the workpiece hoisting mechanism (2-2) is no less than three groups, and they are evenly arranged along the circumference of the tray (2-2-1).

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