Shock absorber maintenance workbench

Abstract

The utility model discloses a shock absorber maintenance workbench, and belongs to the technical field of automobile part maintenance. Comprising a machine base, a rotatable chuck is installed on the machine base, and the chuck is used for clamping a shock absorber; a guide rail frame is installed above the chuck, a liftable working platform is arranged on the guide rail frame, various tool rests capable of moving towards the chuck are installed on the working platform, a lifting rod coaxial with the chuck is further installed on the guide rail frame, and a sleeve tool is installed at the bottom of the lifting rod. According to the utility model, most operation steps during the maintenance of the shock absorber can be completed, so that the maintenance of the shock absorber is easier and more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts repair technology, specifically to a shock absorber repair workbench. Background Technology

[0002] Shock absorbers are wear-prone parts in automobiles. Their performance directly affects the smoothness of the ride and the lifespan of other components, especially the oil seal gaskets, which are prone to breakage. When a shock absorber is damaged, it can only be replaced or repaired. However, auto repair shops often use inferior products for replacements, and the replacement shock absorbers are not as compatible as the original ones. Therefore, shock absorber repair is often necessary. However, shock absorber repair requires various tools, and there is no dedicated repair equipment on the market, making the repair process quite troublesome. Utility Model Content

[0003] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a shock absorber repair workbench. This application provides the following technical solution:

[0004] The device includes a base on which a rotatable chuck is mounted for clamping a shock absorber. A guide rail is mounted above the chuck, and a liftable work platform is mounted on the guide rail. Various tool holders that can move toward the chuck are mounted on the work platform. A lifting rod coaxial with the chuck is also mounted on the guide rail, and the bottom of the lifting rod is used to mount a sleeve tool.

[0005] The guide rail frame includes three or more vertical guide rails, with a top plate fixed to the top of each vertical guide rail. The work platform is slidably mounted on the vertical guide rails. A vertical adjusting screw is rotatably mounted on the top plate, and the adjusting screw is threadedly engaged with the work platform. A lifting screw is provided at the top of the lifting rod, and the lifting screw is threadedly engaged with the top plate.

[0006] The tool holder includes a cutting tool holder for cutting the shock absorber, a curling tool holder for sealing the edge of the shock absorber, and a shock-absorbing wheel holder for stabilizing the shock absorber. The shock-absorbing wheel holder is arranged opposite to the cutting tool holder and the curling tool holder. The working platform is provided with multiple linear guide slide modules, and the cutting tool holder, the curling tool holder, and the shock-absorbing wheel holder are mounted on the linear guide slide modules.

[0007] The sleeve tool includes a clamping sleeve for pulling out the shock absorber piston rod and a pressing sleeve for pressing and fixing the shock absorber. The bottom of the lifting rod is rotatably provided with an installation cylinder. The clamping sleeve and the pressing sleeve can be sleeved in the installation cylinder. The installation cylinder, the clamping sleeve, and the pressing sleeve are provided with corresponding pin holes.

[0008] A rotatable circular blade is mounted on one end of the cutting blade holder near the chuck, a rotatable spinning wheel is mounted on one end of the edge-rolling blade holder near the chuck, and a pair of rotatable abutment wheels are mounted on one end of the shock-absorbing wheel holder near the chuck.

[0009] The spinning wheel is mounted at an angle on the roller support arm, the roller support arm is hinged to the edge-rolling knife holder, and a fastening screw is threaded on one side of the roller support arm on the edge-rolling knife holder. The fastening screw is used to press and fix the roller support arm.

[0010] The clamping sleeve has an opening at the bottom of its side wall, which is used to place a tool for clamping the shock absorber piston rod. Below the pressing sleeve is a slender cylinder with a diameter smaller than that of the inner cylinder of the shock absorber, which is used to press against the inner cylinder of the shock absorber.

[0011] The chuck is provided with radially movable jaws, and the inner side of the jaws is provided with several vertical grooves, in which jaw teeth can be detachably inserted.

[0012] A jack is installed below the chuck, and the jack is used to support the shock absorber.

[0013] The base is equipped with a drive motor, which is connected to the chuck to drive the chuck to rotate.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] By setting up a chuck, work platform, and lifting rod, when the chuck clamps the shock absorber, the lifting rod's movement allows the installation sleeve tool to be pulled out to facilitate the disassembly of internal components such as oil seals and guides; or to press and install them into the inner cylinder of the shock absorber. When the chuck drives the shock absorber to rotate, the tool holder on the work platform can be used to cut off the original oil seal gasket and re-seal the edge after replacing it with a new one. This allows most of the operation steps in shock absorber maintenance to be completed, making shock absorber maintenance easier and more convenient.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a shock absorber repair workbench.

[0019] Figure 2 This is a schematic diagram of a shock absorber repair workbench platform.

[0020] Figure 3 This is a schematic diagram of a cutting tool holder for a shock absorber repair workbench.

[0021] Figure 4 This is a schematic diagram of a shock absorber repair workbench with a rolled edge tool holder.

[0022] Figure 5 This is a schematic diagram of a shock absorber maintenance workbench with a shock absorber wheel frame.

[0023] Figure 6 This is a schematic diagram of a combination of a cutting tool holder and a curling tool holder on a shock absorber repair workbench.

[0024] Figure 7 This is a schematic diagram of a gear plate for shock absorber maintenance workbench.

[0025] Figure 8 This is a schematic diagram of a shock absorber maintenance workbench with a pressure sleeve.

[0026] Figure 9 This is a schematic diagram of a clamping sleeve on a shock absorber maintenance workbench.

[0027] Figure 10 This is a schematic diagram of a shock absorber repair workbench for grinding sleeves.

[0028] Figure 11 This is a schematic diagram of a hollow drill sleeve for a shock absorber repair workbench.

[0029] Reference numerals: 1. Machine base; 11. Guide rail frame; 111. Vertical guide rail; 112. Top plate; 113. Adjusting screw; 2. Chuck; 21. Chuck claw; 211. Groove; 212. Chuck tooth; 3. Work platform; 31. Tool holder; 311. Cutting tool holder; 3111. Circular knife; 312. Edge curling tool holder; 3121. Spinning roller; 3122. Roller support arm; 3123. 313. Fastening screw; 313. Shock-absorbing wheel frame; 3131. Abutment wheel; 32. Linear guide slide module; 4. Lifting rod; 41. Sleeve tool; 411. Clamping sleeve; 4111. Through port; 412. Pressing sleeve; 413. Grinding sleeve; 414. Hollow drill sleeve; 4121. Slender cylinder; 42. Lifting screw; 43. Mounting cylinder; 5. Jack; 6. Drive motor. Detailed Implementation

[0030] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] Please refer to Figure 1-11 As shown, this utility model provides a shock absorber repair workbench, including a base 1, on which a rotatable chuck 2 is installed, which is used to clamp the shock absorber; a guide rail frame 11 is installed above the chuck 2, and a liftable work platform 3 is provided on the guide rail frame 11. Various tool holders 31 that can move toward the chuck 2 are installed on the work platform 3. A lifting rod 4 coaxial with the chuck 2 is also installed on the guide rail frame 11, and the bottom of the lifting rod 4 is used to install a sleeve tool 41.

[0034] The guide rail frame 11 includes three or more vertical guide rails 111, with a top plate 112 fixed to the top of each vertical guide rail 111. The work platform 3 is slidably mounted on the vertical guide rails 111. A vertical adjusting screw 113 is rotatably mounted on the top plate 112, and the adjusting screw 113 is threadedly engaged with the work platform 3. A lifting screw 42 is provided at the top of the lifting rod 4, and the lifting screw 42 is threadedly engaged with the top plate 112.

[0035] The tool holder 31 includes a cutting tool holder 311 for cutting the shock absorber, a curling tool holder 312 for sealing the edge of the shock absorber, and a shock-absorbing wheel holder 313 for stabilizing the shock absorber. The shock-absorbing wheel holder 313 is arranged opposite to the cutting tool holder 311 and the curling tool holder 312. The work platform 3 is provided with multiple linear guide slide modules 32. The cutting tool holder 311, the curling tool holder 312, and the shock-absorbing wheel holder 313 are installed on the linear guide slide modules 32.

[0036] like Figure 3-5 As shown, the cutting blade holder 311, the edge-rolling blade holder 312, and the shock-absorbing wheel holder 313 are set separately and are each installed on the linear guide slide module 32 at their bottom.

[0037] Furthermore, a welding torch can be fixed on the work platform 3 via a linear guide slide module 32, or a placement rack can be set on the work platform 3 to place the welding torch. The component to be welded is clamped and fixed or rotated by the chuck 2, and linear welding or circular welding is performed by the welding torch, or welding can be performed by hand.

[0038] The sleeve tool 41 includes a clamping sleeve 411 for pulling out the piston rod of the shock absorber and a pressing sleeve 412 for pressing and fixing the shock absorber. The bottom of the lifting rod 4 is rotatably provided with an installation cylinder 43. Both the clamping sleeve 411 and the pressing sleeve 412 can be sleeved in the installation cylinder 43. The installation cylinder 43 and the clamping sleeve 411 and the pressing sleeve 412 are provided with corresponding pin holes.

[0039] In addition to using a pin hole to pass through a pin shaft for connection, threaded connection, plug-in connection and other methods can also be used to install the sleeve tool 41 on the mounting sleeve 43.

[0040] Furthermore, the sleeve tool 41 also includes a grinding sleeve 413 and a hollow drill sleeve 414; the tops of the grinding sleeve 413 and the hollow drill sleeve 414 are consistent with the clamping sleeve 411 and the pressing sleeve 412, and the bottom of the grinding sleeve 413 is provided with a replaceable grinding head; the bottom of the hollow drill sleeve 414 is provided with a hollow drill bit, which is in the shape of a hollow cylinder and has cutting teeth on the bottom edge.

[0041] A rotatable circular blade 3111 is installed at one end of the cutting blade holder 311 near the chuck 2, a rotatable spinning wheel 3121 is installed at one end of the edge-rolling blade holder 312 near the chuck 2, and a pair of rotatable abutment wheels 3131 are installed at one end of the shock-absorbing wheel holder 313 near the chuck 2.

[0042] The spinning roller 3121 is mounted at an angle on the roller support arm 3122, which is hinged to the edge-rolling knife holder 312. The edge-rolling knife holder 312 has a fastening screw 3123 threadedly fitted on one side of the roller support arm 3122. The fastening screw 3123 is used to press and fix the roller support arm 3122.

[0043] like Figure 6 As shown, the cutting blade holder 311 and the edge-rolling blade holder 312 can also be integrated into one unit and installed on the same linear guide slide module 32. Specifically, one end of the roller support arm 3122 is hinged above the cutting blade holder 311, and the other end is equipped with a spinning wheel 3121, extending the spinning wheel 3121 above the front of the circular blade 3111. A bridge is also provided above the cutting blade holder 311. The bridge consists of a support column and a pin. The support column is fixed to the cutting blade holder 311, and the pin passes through the support column and is fixed. The roller support arm 3122 is located below the middle of the pin. A pressing bolt is threaded on the pin, and a support bolt is threaded on the roller support arm 3122. The bottom of the support bolt abuts against the top of the cutting blade holder 311. Roller support arm 3122 is raised, with the bottom of the pressing bolt abutting against the top of roller support arm 3122, thus fixing roller support arm 3122. When using circular cutter 3111, the pressing bolt is unscrewed, the pin is pulled out from the support column, and roller support arm 312 is flipped so that the spinning wheel 3122 is away from the circular cutter 3111 before using the circular cutter 3111. When using spinning wheel 3122, the pressing bolt is loosened first, and then the support bolt is tightened so that the bottom of the support bolt extends or retracts, and roller support arm 312 rises or falls accordingly and rotates around the hinge point to adjust the angle of spinning wheel 3122. Then the pressing bolt is tightened so that its bottom presses against roller support arm 3122, thus achieving adjustment of the angle of spinning wheel 3122.

[0044] A through-hole 4111 is provided on the lower side wall of the clamping sleeve 411. The through-hole 4111 is used to place a tool that can clamp the piston rod of the shock absorber. A slender cylinder 4121 with a diameter smaller than the inner cylinder of the shock absorber is provided below the pressing sleeve 412. The slender cylinder 4121 is used to press against the inner cylinder of the shock absorber.

[0045] The chuck 2 is provided with radially movable jaws 21. Several grooves 211 are vertically arranged on the inner side of the jaws 21, and jaw teeth 212 are detachably inserted into the grooves 211.

[0046] The chuck 2 can refer to the chucks commonly used in machine tools in the prior art. In this embodiment, the chuck used is a three-jaw chuck, but a four-jaw chuck or other multi-jaw chucks can also be used.

[0047] Jack 5 is installed below chuck 2, and jack 5 is used to support the shock absorber.

[0048] A drive motor 6 is provided on the base 1, and the drive motor 6 is driven and connected to the chuck 2 to drive the chuck 2 to rotate; in a preferred embodiment, a large-diameter hollow shaft is connected to the bottom of the chuck 2, and the drive motor 6 is driven by the large-diameter hollow shaft belt; the large-diameter hollow shaft is hollow inside, so as to place shock absorbers with different shapes of accessories on the outer cylinder.

[0049] Furthermore, this embodiment provides a manually operated shock absorber maintenance workbench, such as... Figure 1 As shown, for ease of operation, handles are provided at the top of the adjusting screw 113 and in the middle of the lifting rod 4. The linear guide slide module 32 adopts a manual screw linear guide slide module with handles. In other feasible embodiments, it can be set as an electric operating workbench. Specifically, the electric operating workbench can use a motor to drive the adjusting screw 113, lifting rod 4 and other threaded components to rotate. The linear guide slide module 32 adopts an electric screw linear guide slide module. Alternatively, hydraulic cylinders, air cylinders and other telescopic elements can be used to replace the adjusting screw 113, lifting rod 4 and other components, and the telescopic rod can drive the installation cylinder 43, work platform 3 and other components to move.

[0050] In practice, the piston rod is pulled out as follows: Place the shock absorber to be repaired in the chuck 2 and clamp it with the jaws 21. Insert the clamp sleeve 411 into the mounting sleeve 43 of the lifting rod 4 and pass the pin or bolt through the corresponding pin hole. Then rotate the lifting rod 4 so that the thread of the lifting rod 4 moves downward and approaches the piston rod of the shock absorber so that the piston rod is located in the clamp sleeve 411. Then use calipers or adjustable wrenches to clamp the piston rod through the through hole 4111. Then rotate the lifting rod 4 so that the thread of the lifting rod 4 moves upward. The lifting rod 4 drives the calipers or adjustable wrench to move upward and pull out the piston rod.

[0051] Cutting oil seal gasket operation: Place the shock absorber to be repaired in the chuck 2 and clamp it with the jaws 21. Rotate the adjusting screw 113 and the working platform 3 moves down along the thread to approach the shock absorber, so that the circular blade 3111 of the cutting tool holder 311 is aligned with the part of the shock absorber that needs to be cut. Crank the handle of the linear guide slide module 32 to bring the shock absorber wheel frame 313 closer to the shock absorber and make the abutment wheel 3131 abut against the shock absorber. Then start the drive motor to drive the chuck 2 to rotate, and crank the handle of the linear guide slide module 32 to bring the circular blade 3111 closer to the shock absorber to cut the shock absorber and remove the oil seal gasket.

[0052] Disassembly operation of guide for oil-gas separation shock absorber: After the shock absorber is cut, the pressure sleeve 412 is inserted into the mounting cylinder 43 of the lifting rod 4. The shock absorber passes through the chuck 2 but is not clamped by the jaw 21. The bottom abuts against the jack 5. The lifting rod 4 is rotated to make it descend along the thread, so that the pressure sleeve 412 and the shock absorber sleeve are combined and press against the guide. Then the jack 5 is raised to force the guide to move out of the clamping point inside the shock absorber cylinder. Then the shock absorber is clamped by the jaw 21 and the guide is pulled out.

[0053] Shock absorber guide and piston rod removal operation: Fix the inner cylinder on the chuck 2, then insert the hollow drill sleeve 414 into the mounting cylinder 43 of the lifting rod 4, start the drive motor to drive the chuck 2 to rotate, the inner cylinder rotates, rotate the lifting rod 4 to make it descend along the thread, and the bottom cutting teeth of the hollow drill sleeve 414 cut the guide and piston rod out of the inner cylinder.

[0054] Shock absorber cutting and grinding operation: Both the inner and outer cylinders of the shock absorber need to be cut and disassembled. After the inner and outer cylinders are disassembled, they are ground in sequence. During grinding, the inner or outer cylinder is fixed on the chuck 2, and then the grinding sleeve is inserted into the mounting sleeve 43 of the lifting rod 4 and the pin or bolt is passed through the corresponding pin holes of the two. The drive motor is started to drive the chuck 2 to rotate, the inner or outer cylinder rotates, and the lifting rod 4 is rotated to make it go down along the thread. The grinding head at the bottom of the grinding sleeve contacts the cut position at the top of the inner or outer cylinder to perform grinding. If necessary, the mounting sleeve 43 can be held to prevent it from moving.

[0055] Shock absorber assembly operation: After the shock absorber has been cut and reinstalled with new internal parts and oil seal gaskets, place the inner cylinder inside the outer cylinder and clamp the outer cylinder onto the clamping plate 2. Insert the pressure sleeve 412 into the mounting sleeve 43 of the lifting rod 4 and pass it through the corresponding pin holes of the two with pins or bolts. Raise the jack 5 to support the bottom of the shock absorber. Rotate the lifting rod 4 to make the pressure sleeve 412 move down and make the slender cylinder 4121 contact the inner cylinder of the shock absorber. The lifting rod 4 continues to move down to press the inner cylinder into the outer cylinder, ensuring that the inner cylinder is completely embedded in the outer cylinder.

[0056] Method 1 for sealing the edge of the shock absorber: After assembling the shock absorber, loosen the chuck 2 and retract the jack. Adjust the height of the shock absorber so that the top of the outer cylinder of the shock absorber is inside the chuck 21. During this period, rotate the lifting rod 4 to lower it with the shock absorber, keeping the slender cylinder 4121 against the inner cylinder of the shock absorber. The jack and the slender cylinder 4121 ensure that the shock absorber will not move. Then, insert the cleat 212 into the groove 211 of the chuck 21, ensuring that the cleat 212 is aligned with the top of the outer cylinder of the shock absorber. Then, bring the chuck 21 together, and the cleat 212 bites the top edge of the outer cylinder to form a sealing edge.

[0057] Method 2: After assembling the shock absorber, keep the chuck 2 clamped, retract the jack, rotate the lifting rod 4 to move it upward, then rotate the adjusting screw 113 to move the working platform 3 downward, and align the bottom of the spinning roller 3121 with the part of the outer cylinder of the shock absorber that needs to be sealed. If necessary, loosen the fastening screw 3123 so that its end is away from the roller support arm 3122, then rotate and adjust the spinning roller 3121, and then tighten the fastening bolt 3123 so that its end presses against the side of the roller support arm 3122 to ensure its fixation. Shake the handle of the linear guide slide module 32 to bring the shock absorber wheel frame 313 close to the shock absorber and make the abutment wheel 3131 abut against the shock absorber. Then start the drive motor to drive the chuck 2 to rotate, the shock absorber rotates, and shake the handle of the linear guide slide module 32 below the edge rolling knife holder 312 to bring the spinning roller 3121 close to the shock absorber to press the top of the outer cylinder of the shock absorber to achieve edge sealing.

[0058] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A shock absorber repair workbench, characterized in that: The device includes a base (1), on which a rotatable chuck (2) is mounted, the chuck (2) being used to clamp a shock absorber; a guide rail frame (11) is mounted above the chuck (2), and a liftable work platform (3) is provided on the guide rail frame (11), on which various tool holders (31) that can move toward the chuck (2) are mounted, and a lifting rod (4) coaxial with the chuck (2) is also mounted on the guide rail frame (11), the bottom of the lifting rod (4) being used to mount a sleeve tool (41).

2. The shock absorber maintenance workbench as described in claim 1, characterized in that: The guide rail frame (11) includes three or more vertical guide rails (111), and a top plate (112) is fixed on the top of the vertical guide rails (111). The working platform (3) is slidably installed on the vertical guide rails (111). A vertical adjusting screw (113) is rotatably installed on the top plate (112). The adjusting screw (113) is threadedly engaged with the working platform (3). A lifting screw (42) is provided on the top of the lifting rod (4). The lifting screw (42) is threadedly engaged with the top plate (112).

3. The shock absorber maintenance workbench as described in claim 1, characterized in that: The tool holder (31) includes a cutting tool holder (311) for cutting the shock absorber, a curling tool holder (312) for sealing the edge of the shock absorber, and a shock-absorbing wheel holder (313) for stabilizing the shock absorber. The shock-absorbing wheel holder (313) is arranged opposite to the cutting tool holder (311) and the curling tool holder (312). The working platform (3) is provided with multiple linear guide slide modules (32). The cutting tool holder (311), the curling tool holder (312), and the shock-absorbing wheel holder (313) are installed on the linear guide slide modules (32).

4. The shock absorber maintenance workbench as described in claim 1, characterized in that: The sleeve tool (41) includes a clamping sleeve (411) for pulling out the piston rod of the shock absorber and a pressing sleeve (412) for pressing and fixing the shock absorber. The bottom of the lifting rod (4) is rotatably provided with an installation cylinder (43). The clamping sleeve (411) and the pressing sleeve (412) can both be sleeved in the installation cylinder (43). The installation cylinder (43), the clamping sleeve (411), and the pressing sleeve (412) are provided with corresponding pin holes.

5. A shock absorber maintenance workbench as described in claim 3, characterized in that: The cutting blade holder (311) has a rotatable circular blade (3111) installed at one end near the chuck (2), the edge-rolling blade holder (312) has a rotatable spinning wheel (3121) installed at one end near the chuck (2), and the shock-absorbing wheel holder (313) has a pair of rotatable abutment wheels (3131) installed at one end near the chuck (2).

6. The shock absorber maintenance workbench as described in claim 5, characterized in that: The spinning wheel (3121) is mounted obliquely on the roller support arm (3122), the roller support arm (3122) is hinged to the edge-rolling knife holder (312), and a fastening screw (3123) is threaded on one side of the roller support arm (3122) on the edge-rolling knife holder (312). The fastening screw (3123) is used to press and fix the roller support arm (3122).

7. A shock absorber maintenance workbench as described in claim 4, characterized in that: The clamping sleeve (411) has a through-hole (4111) on the lower side wall. The through-hole (4111) is used to place a tool that can clamp the piston rod of the shock absorber. The pressing sleeve (412) has a slender cylinder (4121) with a diameter smaller than the inner cylinder of the shock absorber below it. The slender cylinder (4121) is used to press against the inner cylinder of the shock absorber.

8. A shock absorber maintenance workbench as described in claim 1, characterized in that: The chuck (2) is provided with radially movable jaws (21), and the inner side of the jaws (21) is provided with several grooves (211) vertically, and jaw teeth (212) are detachably inserted into the grooves (211).

9. A shock absorber maintenance workbench as described in claim 1, characterized in that: A jack (5) is installed below the chuck (2), and the jack (5) is used to support the shock absorber.

10. A shock absorber maintenance workbench as described in claim 1, characterized in that: A drive motor (6) is provided on the base (1), and the drive motor (6) is connected to the chuck (2) to drive the chuck (2) to rotate.

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