Shock absorber spring dismounting and mounting device

Abstract

The invention discloses a shock absorber spring disassembling and assembling device, and belongs to the technical field of shock absorber spring disassembling and assembling tools, the device comprises a bottom frame, a first driving piece, a guide rod group, a first sliding block plate, a first lower supporting plate and an upper abutting assembly, the first lower supporting plate is provided with a notch, and the first lower supporting plate forms a first shoulder part and a second shoulder part on the two sides of the notch; the sum of the length of the first shoulder part and the length of the second shoulder part is larger than the length of the notch, the horizontal height of the first lower supporting plate is reduced in a spiral mode from the first shoulder part to the second shoulder part, and the first lower supporting plate is used for compressing a shock absorber spring upwards. The device can adapt to shock absorber springs with different outer diameters; it does not need to be guaranteed that the damper spring and the damper cylinder are in a completely vertical state, and disassembly and assembly are convenient; the second claw adapts to shock absorber springs with different spring outer diameters, different spiral directions and different spiral angles; and in a working place where a power supply or an air source cannot be provided, the disassembly and assembly of the shock absorber spring are completed by utilizing the claw moving downwards.

Description

Technical Field

[0001] The invention belongs to the technical field of shock absorber spring disassembly and assembly tools, and particularly relates to a shock absorber spring disassembly and assembly device. Background Art

[0002] Automobile shock absorbers are devices used to alleviate impact and reduce vibration in automobiles. They mainly include a shock absorber cylinder and a shock absorber spring. The shock absorber spring is sleeved on the outside of the shock absorber cylinder. The shock absorber cylinder generally adopts a hydraulic shock absorber. Its working principle is that when the frame (or body) and the axle are vibrated and relative movement occurs, the piston in the shock absorber moves up and down, and the oil in the shock absorber cavity repeatedly flows from one cavity through different pores into another cavity. The fluid is used to convert the elastic energy of the spring into heat energy, making the vehicle movement convergence as reasonable as possible, thereby eliminating the vibration caused by the road surface, improving driving stability, and giving the driver a sense of comfort and stability. The shock absorber cylinder is a vulnerable part during the use of the car. The internal hydraulic oil will gradually leak with use, while the shock absorber spring, as a supporting component, can usually be used for life. When replacing the existing shock absorber, the shock absorber spring needs to be disassembled from the shock absorber cylinder. The existing shock absorber spring disassembly and assembly tools generally use a claw plate to compress the shock absorber spring from the upper or lower part of the shock absorber spring. For example, the Chinese utility model patent with authorization announcement number CN222290052U discloses an automobile shock absorber spring disassembly and assembly tool, which uses a clamping component to clamp the shock absorber cylinder, then uses the claws of the compression component to press the spring, and uses the screw rod of the driving component to compress the shock absorber spring. Drive the slider and compression assembly downward, and the claw of the compression assembly presses the spring downward. After compressing the spring, remove the nut at the top glue on the top of the shock absorber, and then rotate the screw in the opposite direction to drive the slider and compression assembly upward. After the claw releases the spring, loosen the clamping assembly that fixes the shock absorber cylinder, clamp the new shock absorber cylinder with the clamping assembly, and then put the original shock absorber spring on the new shock absorber cylinder, and then use the claw of the compression assembly to press the shock absorber spring down again. After compressing it to the predetermined stroke, connect the nut at the top glue to the upper end of the shock absorber cylinder, and the claw of the compression assembly rises again to loosen the shock absorber spring to complete the replacement of the shock absorber cylinder. This type of shock absorber spring disassembly and assembly tool is inconvenient to disassemble and assemble. Multiple sets of claw plates need to be prepared for shock absorber springs with different outer diameters. In addition, the spring needs to be compressed twice when replacing the shock absorber cylinder, which is relatively cumbersome. In addition, the spring is easy to pop out during the compression and release process, affecting the safety of the operator. When replacing a new shock absorber cylinder, a clamping assembly needs to be used to ensure that the new shock absorber cylinder is placed vertically, and then the claws of the compression assembly are used to compress the shock absorber spring onto the new shock absorber cylinder, which is very inconvenient. Summary of the Invention

[0003] In view of the above problems existing in the prior art, the technical problem to be solved by the present invention is to provide a shock absorber spring disassembly and assembly device to improve the efficiency of shock absorber spring disassembly and assembly.

[0004] Technical solution: In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] The camshaft is mounted on the support frame of the chassis and the support frame is located adjacent to the support frame of the chassis, wherein the camshaft is mounted on the support frame of the chassis and the support frame is located adjacent to the support frame of the chassis.

[0006] Preferably, a first inner hole is provided on one side of the first slider plate, a first hole rod corresponding to the first inner hole is connected to the first lower supporting plate, and the first lower supporting plate is rotatably connected to the first slider plate through the first hole rod.

[0007] Preferably, the first lower supporting plate is movably connected with a first hook for hooking onto the shock absorber spring.

[0008] Preferably, the guide rod group includes more than two guide rods, the upper clamping assembly includes a second driving member and a first working member connected to the second driving member, the first working member includes a sliding sleeve sleeved on the guide rod, a first cantilever connected to the sliding sleeve and a second hook connected to the first cantilever, and the second hook is used to hook on the shock absorber spring.

[0009] Preferably, an upper top plate is connected to the top of the guide rod group, and the second driving member includes a second slider plate sliding on the guide rod group, a second screw movably connected to the second slider plate, and a first handwheel connected to the second screw, the second screw passes through the upper top plate and is threadedly connected to the upper top plate, a first external thread and a second external thread are provided on the outer wall of the sleeve, the first cantilever is movably connected to the sleeve through the second external thread, and the sleeve is movably connected to the second slider plate.

[0010] Preferably, the second hook includes a hook portion and an extension column connected to the hook portion, a first through slot is provided on the first cantilever, a first displacement block is provided in the first through slot, a first through hole corresponding to the extension column is provided on the first displacement block, a first locking screw for limiting the movement of the extension column is threadedly connected to the first displacement block, a second through slot connected to the first through slot is provided on the first cantilever, the first locking screw passes through the second through slot, and a first locking nut is connected to the first locking screw.

[0011] Preferably, the upper clamping assembly also includes a second working piece, the second working piece includes a second cantilever and a third suspension block movably connected to the second driving piece, the second cantilever and the third suspension block are both provided with a third hook claw, and the second cantilever is sleeved on the guide rod.

[0012] Preferably, the second working piece includes two second cantilevers, a second slide is sleeved on the guide rod, the second slide is movably connected to the second driving piece through a seventh lead screw, and when the seventh lead screw rotates, the second slide is driven to move up and down along the guide rod, and when the second slide moves up and down, the second cantilever is driven to move up and down, and the third suspension block is movably connected to the second slider plate through an eighth lead screw, and when the eighth lead screw rotates, the third suspension block is driven to move up and down.

[0013] Preferably, the first driving member is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder, the first driving member includes a piston rod, the bottom frame includes a frame top plate, the piston rod passes through the frame top plate, and the first slider plate is connected to the top of the piston rod.

[0014] Preferably, the first slider plate is detachably connected to a second lower supporting plate, the second lower supporting plate being mirror-symmetrical to the first lower supporting plate, the first slider plate is further connected to a first clamping assembly for clamping the shock absorber cylinder, and the bottom frame is connected to a supporting plate for supporting the shock absorber cylinder from below. Advantageous Effects: Compared with the prior art, the present invention has the following advantages:

[0015] 1. The present application provides a first driving member, a first lower supporting plate, and an upper tightening assembly. The first driving member drives the first lower supporting plate to compress the shock absorber spring upward. The lengths of the first shoulder and the second shoulder of the first lower supporting plate are greater than the radius of the notch. Compared with existing fixed-size chucks, the first lower supporting plate can accommodate shock absorber springs of different outer diameters.

[0016] 2. A rotatable first lower supporting plate is provided. After the first lower supporting plate is inserted into the shock absorber spring, the second locking screw that restricts the rotation of the first lower supporting plate is loosened. When the shock absorber spring does not maintain a vertical state but deviates at a certain angle, the first lower supporting plate can deviate at a certain angle along with the shock absorber spring, ensuring that the upper end surface of the first lower supporting plate can be closer to the shock absorber spring. When the shock absorber spring deviates, the spring can continue to be compressed, and the shock absorber spring can be disassembled without ensuring that the shock absorber spring and the shock absorber cylinder are in a completely vertical state, making disassembly and assembly convenient.

[0017] 3. The first lower support plate is movably connected to a first hook hooked on the shock absorber spring. By providing a first positioning block at a radial position of the notch on the first lower support plate, corresponding serrations are provided on the first positioning block and the first hook. The position of the first hook can be adjusted forward and backward relative to the notch, and the displacement is limited by the engaged serrations. The first hook can limit the horizontal sliding of the spring when compressed, thereby improving safety. There is no need to provide a groove on the first lower support plate, and the first lower support plate can accommodate shock absorber springs of various outer diameters.

[0018] 4. The upper tightening assembly includes a second driving member and a first working member, wherein the second slider plate of the second driving member drives the sliding sleeve, the first cantilever and the second hook claw of the first working member to move up and down as a whole, and the second hook claw located on the same side is used to hook the shock absorber spring. The height of the two second hook claws can be adjusted as a whole through the first hand wheel. The sliding sleeve is threadedly connected to the second slider plate and the first cantilever respectively, and the sliding sleeve is sleeved on the guide rod, with low sliding resistance and small space occupation. The height of each first cantilever and the corresponding second hook claw can be individually adjusted by rotating the sliding sleeve by the first hand wheel block. The threads at both ends of the sliding sleeve are opposite, and the height adjustment speed of the first cantilever is fast when the sliding sleeve is rotated;

[0019] 5. During operation, the two first cantilevers can be adjusted in height separately, and the first cantilever can be rotated relative to the guide rod to quickly adjust the left and right position of the first cantilever. The second hook claw is slidably connected to the first cantilever through the first displacement block, so that the front and rear position can be adjusted. The first displacement block can adjust the angle of the second hook claw within the first cantilever, so as to adjust the angle of the second hook claw. The second hook claw can move back and forth relative to the first displacement block, so as to fine-tune the left and right position of the second hook claw. The second hook claw can rotate relative to the first displacement block, so as to adjust the direction of the second hook groove on the second hook claw. The two second hook claws can be adjusted in height up and down separately, quickly adjust the left and right position, adjust the front and rear position, adjust the angle of the second hook claw, fine-tune the left and right position of the second hook claw, and adjust the direction of the second hook groove on the second hook claw. The six degrees of freedom adjustment makes the second hook claw adapt to shock absorber springs with different spring outer diameters, different spiral directions, and spiral angles, and the adjustment speed is fast and ensures that the two second hook claws are kept in 180° use;

[0020] 6. The guide rod assembly includes four guide rods. A second lower support plate with a spiral direction opposite to that of the first lower support plate is provided on the other side of the first slider plate. Cooperating with the first cantilever on the other side of the guide rod, it can complete the disassembly and assembly of springs with different spiral directions.

[0021] 7. When replacing the shock absorber cylinder, the first lower support plate and the second hook claw eliminate the need to fix the shock absorber cylinder when compressing the shock absorber spring. When replacing a new shock absorber cylinder, there is no need to ensure that the shock absorber cylinder is in a vertical state to complete the connection between the new shock absorber cylinder and the shock absorber spring. Furthermore, the shock absorber spring only needs to be compressed once during the entire process of replacing the new shock absorber cylinder, thereby improving safety and work efficiency.

[0022] 8. A first clamping assembly and a supporting plate are provided, and a second reversible hook is used. In a workplace where power or air source is unavailable, manual operation is used without adding any additional parts, and the shock absorber spring is disassembled and assembled by using the downward-moving hook;

[0023] 9. The upper tightening assembly also includes a second working piece. The third suspension block and two second cantilevers of the second working piece are movably connected to the second slider plate. The three third hooks are used to press the shock absorber spring downward, so that the force is more uniform during use, and the device is more stable and safer. The heights of the three third hooks can be adjusted up and down simultaneously, and the heights of the three third hooks can be adjusted individually. When the third hooks are not under force, they can be manually adjusted using the second handwheel block. When the third hooks are under force, the height of each one can be adjusted individually using the sleeve rod. The concentricity of the shock absorber spring, the center of the shock absorber cylinder and the top glue can be adjusted. When the top glue is replaced separately, the top of the shock absorber spring can be leveled at any time, making assembly faster.

[0024] 10. The first clamping assembly and the supporting plate can also cooperate with the third hook of the second working piece. In a workplace where power or air source is unavailable, the third hook can be moved downward to complete the disassembly and assembly of the shock absorber spring.

[0025] 11. A third slider plate movably connected to the second slider plate is provided. A safety block is movably connected to the third slider plate. The safety block is used to place a limit block. The limit block can fix the first batch of heads instead of people holding the first batch of heads by hand, thereby improving the convenience of disassembly and assembly of the shock absorber spring. The safety block can also prevent the shock absorber spring from popping out, thereby improving operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 1 is an overall structural diagram of the device according to embodiment 1 of the present invention;

[0027] Figure 2 2. This is a schematic diagram of the top view of the first lower support plate of Example 1;

[0028] Figure 3 This is a schematic diagram of the dimensions of the first lower support plate of Example 1;

[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of the first lower support plate of Example 1;

[0030] Figure 5 is a schematic diagram of the cross-sectional structure of the first positioning block in Example 1;

[0031] Figure 6 is a schematic diagram of the cross-sectional structure of the first hook of Example 1;

[0032] Figure 7 is a schematic side view of the first hook structure of Example 1;

[0033] Figure 8 1 is a schematic diagram of the bottom frame structure of Example 1;

[0034] Figure 9 is a schematic diagram of the top view of the first slider plate of Example 1;

[0035] Figure 10 is a schematic diagram of the top view of the second slider plate of Example 1;

[0036] Figure 11 is a schematic diagram of the cross-sectional structure of the second slider plate of Example 1;

[0037] Figure 12 is a schematic diagram of the cross-sectional structure of the connection between the second lead screw and the second slider plate of Example 1;

[0038] Figure 13 2. It is a structural diagram of the connection between the second slider plate and the sliding sleeve of Example 1;

[0039] Figure 14 1 is a schematic diagram of the sliding sleeve structure of Example 1;

[0040] Figure 15 2. It is a schematic diagram of the three-dimensional structure of the first cantilever and the second hook of Example 1;

[0041] Figure 16 is a schematic diagram of the first cantilever structure of Example 1;

[0042] Figure 17 is a schematic structural diagram of the first displacement block in Example 1;

[0043] Figure 18 is a schematic structural diagram of the first locking screw and the first locking nut of Example 1;

[0044] Figure 19 is a schematic diagram of the safety buckle structure of Example 1;

[0045] Figure 20 This is a schematic diagram of the working state of the second hook in Example 1

[0046] Figure 21 This is a schematic structural diagram of the second lower support plate in Example 1;

[0047] Figure 22 1 is a schematic structural diagram of the first and second clamping assemblies and the supporting plate of Example 1;

[0048] Figure 23 is a schematic structural diagram of the first clamping assembly of Example 1;

[0049] Figure 24 is a schematic structural diagram of the second clamping assembly and the supporting plate of Example 1;

[0050] Figure 25 It is a schematic diagram of the overall structure of Example 2;

[0051] Figure 26 This is a schematic structural diagram of the second cantilever of Example 2;

[0052] Figure 27 is a schematic structural diagram of the third hook of Example 2;

[0053] Figure 28 is a schematic diagram of the first hook structure of Example 2;

[0054] Figure 29 This is a schematic structural diagram of the first positioning block in Example 2;

[0055] Figure 30 is a schematic diagram of the overall structure of Example 3;

[0056] Figure 31 This is a schematic diagram of the structure of the security block of Example 3;

[0057] Figure 32 2 is a schematic structural diagram of the ninth lead screw of Example 3;

[0058] Figure 33 Schematic diagram of the limit block structure of Example 3;

[0059] Figure 34 This is a schematic diagram of the first batch of header structures in Example 3;

[0060] Figure 35 It is a schematic diagram of the shock absorber cylinder structure;

[0061] Figure 36 This is a schematic diagram of the working state structure of Example 3;

[0062] Figure 37 This is a schematic diagram of the safety block and limit block structure of Example 4;

[0063] Figure 38 This is a schematic diagram of the security block structure of Example 4;

[0064] Figure 39 Schematic diagram of the limit block structure of Example 4;

[0065] Figure 40 It is a schematic diagram of the device structure of Example 5. DETAILED DESCRIPTION

[0066] The present invention will be further illustrated below with reference to specific examples. The examples are implemented based on the technical solutions of the present invention. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0067] Example 1

[0068] like Figure 1 and Figure 8 As shown, a shock absorber spring disassembly and assembly device includes a bottom frame 1, a first driving member 2, a guide rod group 3, a first slider plate 4, a first lower support plate 5 and an upper tightening assembly. The bottom frame 1 is set on a base 15. The base 15 is a rectangular seat used to stabilize the entire device. Two casters 151 are provided on one side of the base 15. When the device and the base 15 are tilted as a whole, the two casters 151 contact the ground, making it convenient to push the base 15 and the entire device to the specified position.

[0069] like Figure 1 and Figure 8As shown, the bottom frame 1 includes a frame top plate 11, a frame bottom plate 12 and four support rods 13. The frame top plate 11 and the frame bottom plate 12 are both rectangular plates. The four support rods 13 are arranged between the frame top plate 11 and the frame bottom plate 12 and connect the two. The frame bottom plate 12 is connected to the base 15 by bolts. The lower ends of the four support rods 13 are respectively connected to the four corners of the frame bottom plate 12, and the upper ends of the four support rods 13 are connected to the frame top plate 11. The first driving member 2 is connected to the bottom frame 1. The first driving member 2 is an air cylinder, a hydraulic cylinder or an electric cylinder. In this embodiment, the first driving member 2 adopts an existing air cylinder including a pneumatic control valve group. The first driving member 2 includes a piston rod 21, a cylinder barrel 22 and an air valve group 23. The cylinder barrel 22 is arranged in the bottom frame 1. The lower end of the cylinder barrel 22 is connected to the frame bottom plate 12. The piston rod 21 passes through the frame top plate 11. The top of the piston rod 21 is located above the frame top plate 11. The air valve group 23 is connected to the cylinder barrel 22 to control the extension and retraction of the piston rod 21. The air valve group 23 adopts an existing pneumatic control valve group including a pressure regulating filter 231, a three-position five-way air control valve (not shown in the figure inside the shell), a pilot valve (not shown in the figure inside the shell) and two foot switches. The external air source pipe is connected to the pressure regulating filter 231, the pressure regulating filter 231 is connected to the three-position five-way air control valve, and the three-position five-way air control valve is connected to the cylinder barrel 2 2. The pilot valve and the two foot switches are connected to the air circuit. The pilot valve is connected to the air circuit of the cylinder 22. The two foot switches are the first switch 241 and the second switch 242. The first switch 241 and the second switch 242 are both connected to the air circuit of the three-position five-way air control valve. Stepping on the first switch 241 is used to control the rise of the piston rod 21, and stepping on the second switch 242 is used to control the descent of the piston rod 21. In this embodiment, the pressure regulating filter 231 adopts the AirTac BFR4000, the three-position five-way air control valve adopts the AirTac 4A430C-15 three-position five-way air control valve, the pilot valve adopts the Hazzar ASP630F04-12S pneumatic pilot speed control valve, the first switch 241 and the second switch 242 both adopt the Automan FV320 pneumatic switch foot valve, and the cylinder 22 adopts the AirTac SC200*450 high-thrust standard cylinder. The first driving member 2 can also adopt an existing electric cylinder, which is connected to an external circuit and then controls the extension and retraction of the electric cylinder piston rod through two inching buttons to achieve the purpose of lifting.

[0070] like Figure 1 and Figure 9As shown, the top end of the piston rod 21 is connected to the center of the lower end surface of the first slider plate 4. The first slider plate 4 is a rectangular plate. When the piston rod 21 moves up and down, it drives the first slider plate 4 up and down. The guide rod assembly 3 is disposed on the base frame 1 and includes two or more guide rods 31. In this embodiment, the guide rod assembly 3 includes four guide rods 31. The guide rods 31 are cylindrical rods. The lower ends of the four guide rods 31 are connected to the four corners of the frame top plate 11. The four guide rods 31 are distributed in a circular array on the frame top plate 11. The first slider plate 4 is provided with four second through holes 401 corresponding to the guide rods 31. The four guide rods 31 serve as guides when the first slider plate 4 moves up and down. The second through holes 401 of the first slider plate 4 are equipped with oil-containing bearings corresponding to the outer diameter of the guide rods 31. The provision of the oil-containing bearings facilitates smoother sliding of the first slider plate 4 relative to the guide rods 31. The provision of four guide rods 31 gives the device an overall rectangular shape.

[0071] like Figure 1 、 Figure 2 and Figure 9 As shown, the first lower support plate 5 is connected to the first slider plate 4, and a first inner hole 41 is provided on one side of the first slider plate 4. A first hole rod 53 corresponding to the first inner hole 41 is connected to the middle position of the inner side edge of the first lower support plate 5. The first inner hole 41 is a circular hole, and the first hole rod 53 is a cylindrical rod. The first hole rod 53 is clearance-fitted with the first inner hole 41. The first lower support plate 5 is inserted into the first inner hole 41 through the first hole rod 53 and is rotatably connected to the first slider plate 4. The first lower support plate 5 is rotatable relative to the first slider plate 4. A second locking screw 411 corresponding to the first inner hole 41 is provided on the first slider plate 4. The second locking screw 411 downwardly enters the first inner hole 41. When the second locking screw 411 is tightened, the lower end of the second locking screw 411 is pressed against the first hole rod 53, thereby limiting the rotation of the first lower support plate 5.

[0072] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the first lower supporting plate 5 is a rectangular plate (the plate shape of the first lower supporting plate 5 can also be a semicircular ring or trapezoidal shape, etc.), and a notch 501 is provided in the middle position of the outer side of the first lower supporting plate 5. The first lower supporting plate 5 forms a first shoulder 51 and a second shoulder 52 on both sides of the notch 501. The first shoulder 51 and the second shoulder 52 have different horizontal heights. The horizontal height of the first lower supporting plate 5 gradually decreases in a spiral from the first shoulder 51 to the second shoulder 52. When in use, the side of the first lower supporting plate 5 where the notch 501 is located is used to insert the shock absorber spring from the side gap of the shock absorber spring. The notch 501 corresponds to the outer diameter of the shock absorber cylinder and is used to accommodate the shock absorber cylinder. The first shoulder 51, the second shoulder 52 and the plate surface next to the notch 501 are used to support the shock absorber spring. The notch 501 includes a semicircular portion 5011 and a rectangular portion 5012. The radius of the semicircular portion 5011 is R, 20 mm ≤ R ≤ 70 mm, and in this embodiment, R = 38 mm. The lengths of the first shoulder 51 and the second shoulder 52 are both W1, W1 ≥ R, and in this embodiment, W1 = 60 mm. The length of the notch 501 is D, D = 2R, 2W1 > ​​D, the depth of the notch 501 is S, the length of the rectangular portion 5012 is the length of the notch 501, and the depth of the rectangular portion 5012 is W2 , W2<R, in this embodiment, W2=25mm, S=R+W2=63mm, the width of the first lower supporting plate 5 is W3, S<0.7W3, that is, the depth of the notch 501 is less than 70% of the width of the first lower supporting plate 5, in this embodiment, W3=130mm, the depth of the notch 501 is less than half the width of the first lower supporting plate 5, since the diameter of the existing automobile shock absorber cylinder is basically less than 76mm (the length of the notch 501), the length and depth of the notch 501 in this embodiment have been The first lower supporting plate 5 can accommodate most automobile shock absorber cylinders. The remaining portion of the first lower supporting plate 5 after removing the notch 501 in the width direction can accommodate the shock absorber spring. The length of the first shoulder 51 plus the length of the second shoulder 52 plus the length of the rectangular portion 5012 is equal to the length of the first lower supporting plate 5. In this embodiment, the length of the first lower supporting plate 5 is 196 mm. The working width of the first lower supporting plate 5 that can accommodate the shock absorber spring is X, where X is measured from the center of the semicircular portion 5011. The working width of the first lower supporting plate 5 is the radius of the semicircular portion 5011 plus the distance from the deepest part of the notch 501 to the welding point at the root of the first hole rod 53. In this embodiment, X is 38 mm + 45 mm = 83 mm, corresponding to an outer diameter of the shock absorber spring that can be accommodated of 166 mm (2X). However, the outer diameter of the lower end of most automobile shock absorber springs currently on the market is less than 166 mm. Therefore, the first lower supporting plate 5 in this embodiment is suitable for most automobile shock absorber springs on the market (for very few shock absorber springs with larger outer diameters, a larger first lower supporting plate 5 is used instead).

[0073] When the first lower support plate 5 is in use, after the first lower support plate 5 is inserted into the shock absorber spring, the second locking screw 411 that restricts the rotation of the first lower support plate 5 is loosened (the second locking screw 411 can also be directly not tightened before the first lower support plate 5 is inserted into the shock absorber spring, so there is no need to loosen it). When the cylinder of the first driving member 2 is working, the piston rod 21 pushes the first slider plate 4 upward, and the first lower support plate 5 moves upward under the drive of the first slider plate 4 to compress the shock absorber spring. When the shock absorber spring does not maintain a vertical state but deviates by a certain angle (the chuck or hook claw used to compress the shock absorber spring above is unevenly stressed, causing the shock absorber spring to deviate), the first lower support plate 5 can deviate by a certain angle following the shock absorber spring to ensure that the upper end surface of the first lower support plate 5 can be better close to the shock absorber spring. When the shock absorber spring is deviated, the spring can continue to be compressed, and the shock absorber spring can be disassembled. The shock absorber spring does not need to ensure that the shock absorber spring and the shock absorber cylinder are in a completely vertical state (the use of a chuck to compress the spring in the prior art requires that the shock absorber spring and the shock absorber cylinder be kept in a vertical state). For example, in existing shock absorber spring disassembly tools such as the hydraulic spring disassembler disclosed in the authorization announcement number CN213859083U, these tools use a chuck at the bottom and a chuck at the top (some tools use a hook). When the chuck is raised to compress the shock absorber spring, the lower chuck is in a horizontal state. The upper chuck (or hook) causes the shock absorber spring and the shock absorber cylinder to deviate due to the height and force difference, while the lower chuck is in a horizontal state and cannot rotate, causing the lower chuck to be easily subjected to unilateral force. Continuing to compress the spring can easily cause the shock absorber spring to be unevenly stressed and slip. After removing the top glue nut, the shock absorber spring is likely to pop out, causing an accident. The first lower support plate 5 of this embodiment can be offset by a certain angle with the shock absorber spring to ensure that the shock absorber spring is evenly stressed when offset, thereby improving safety.

[0074] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7As shown, the first lower supporting plate 5 is movably connected with two first hook claws 55, and the first hook claw 55 is used to hook on the shock absorber spring from top to bottom. In this embodiment, the first lower supporting plate 5 is provided with two first positioning blocks 54, and the two first positioning blocks 54 are arranged along the radial direction of the semicircular portion 5011. The first positioning block 54 is provided with a first serrated portion 541, and the distance between the adjacent tooth tips in the first serrated portion 541 is 2mm. The first hook claw 55 is provided with a second serrated portion 552 and side walls arranged on both sides of the second serrated portion 552. The height of the side wall is higher than the height of the second serrated portion 552. The second serrated portion 552 corresponds to the first serrated portion 541. The first hook claw 5 can be adjusted by inserting the second serrated portion 552 on the first hook claw 55 into different positions of the first serrated portion 541. 5 relative to the notch 501, thereby accommodating shock absorber springs of different diameters. The two side walls of the first hook 55 cover the first positioning block 54. When the first hook 55 is placed on the first positioning block 54, the front, rear, left, and right positions of the first hook 55 are fixed. The front end of the first hook 55 is provided with a first hook groove 551. The first hook groove 551 is arc-shaped and faces downward. The first hook groove 551 is used to accommodate the spring wire of the shock absorber spring. During use, the first lower supporting plate 5 removes the notch 501 to lift the spring wire of the shock absorber spring. The first hook groove 551 of the first hook 55 is hooked on the spring wire of the shock absorber spring. The first hook 55 limits the displacement of the shock absorber spring in the plane, preventing the shock absorber spring from sliding when pressed upward, thereby improving safety during operation.

[0075] like Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13As shown, the upper tightening assembly is used to tighten the shock absorber spring from the upper part of the shock absorber spring. The upper tightening assembly includes a second driving member 61 and a first working member. The top of the guide rod group 3 is connected to the upper top plate 32. The upper top plate 32 is a rectangular plate corresponding to the frame top plate 11. The second driving member 61 includes a second slider plate 611, a second lead screw 612 and a first hand wheel 613. In this embodiment, the second slider plate 611 is an X-shaped plate. Four third through holes 6111 corresponding to the four guide rods 31 are provided on the second slider plate 611. A second internal threaded hole 6112 is provided on the lower end surface of the second slider plate 611 at a position corresponding to the third through hole 6111. The second internal threaded hole 6112 is coaxially arranged with the corresponding third through hole 6111 and the inner diameter of the second internal threaded hole 6112 is larger than the inner diameter of the third through hole 6111. The upper top plate 32 is provided with a third internal threaded hole corresponding to the second screw 612, the second screw 612 is threadedly connected to the upper top plate 32, the upper end of the second screw 612 extends above the upper top plate 32, and the first hand wheel 613 is connected to the top of the second screw 612. When the first hand wheel 613 is turned, the second screw 612 rotates relative to the upper top plate 32 and moves upward or downward. By adjusting the rotation direction of the first hand wheel 613, the second screw 612 moves upward or downward. The upper and lower end surfaces of the center part of the second slider plate 611 are provided with a first bearing seat hole 6113. The two first bearing seat holes 6113 are connected in the middle through the center hole, and the lower end of the second screw 612 is connected to the through rod 61 corresponding to the center hole. 21. A first bearing 6114 is provided in each of the two first bearing seat holes 6113. The upper end surface of the first bearing 6114 rotates relative to the lower end surface. The through rod 6121 of the second lead screw 612 passes through the center hole and the two first bearings 6114. The lower end of the through rod 6121 is connected with a center bolt 6112. The center bolt 6112 presses the center gasket 6123 on the lower end surface of the first bearing 6114 on the lower end surface of the second slider plate 611, thereby completing the movable connection between the second lead screw 612 and the second slider plate 611. The second lead screw 612 can move upward or downward when it rotates relative to the upper top plate 32. When the second lead screw 612 moves upward or downward, it drives the second slider plate 611 to move upward or downward.

[0076] like Figure 1 、 Figure 13 、 Figure 14 and Figure 15As shown, the first working member is connected to the second slider plate 611 of the second driving member 61. The first working member includes a sleeve 62, a first cantilever 63, and a second hook 7. The sleeve 62 is mounted on the guide rod 31. The inner diameter of the sleeve 62 corresponds to the outer diameter of the guide rod 31. In this embodiment, a sleeve 62 is mounted on each of the four guide rods 31. The outer wall of the upper half of the sleeve 62 is provided with a first external thread 621. The first external thread 621 corresponds to the second internal threaded hole 6112 of the second slider plate 611. As a result, the sleeve 62 is threadedly connected to the second slider plate 611. When the second slider plate 611 moves up and down, the four sleeves 62 move together. The first cantilever 63 is connected to the sliding sleeve 62. The first cantilever 63 is a rectangular block. A fourth through hole 632 is provided at one end of the first cantilever 63. The fourth through hole 632 corresponds to the guide rod 31, so that the four first cantilever arms 63 are sleeved on the corresponding guide rod 31 through the fourth through hole 632. A fourth internal threaded hole 6321 is provided on the upper surface of one end of the first cantilever 63. The fourth internal threaded hole 6321 is coaxial with the fourth through hole 632 and the inner diameter of the fourth internal threaded hole 6321 is larger than the inner diameter of the fourth through hole 632. A second external thread 622 is provided on the outer wall of the lower half of the sliding sleeve 62. The second external thread 622 corresponds to the fourth internal threaded hole 6321, so that the first cantilever 63 is threadedly connected to the sliding sleeve 62. When the four sliding sleeves 62 are driven up and down by the second slider plate 611 to slide together, the four first cantilevers 63 are driven up and down by the corresponding sliding sleeves 62. The middle part of the sliding sleeve 62 is connected to the first hand wheel block 623, which is an annular block. Since the sliding sleeve 62 is threadedly connected to the second slider plate 611 above and the first cantilever 63 below, the sliding sleeve 62 can be driven to rotate when the first hand wheel block 623 is turned by hand. The first external thread 621 and the second external thread 622 rotate in opposite directions. Since the second slider plate 611 is fixed at this time, the rotation of the sliding sleeve 62 can be converted into the up and down displacement of the first cantilever 63 by turning the first hand wheel block 623. The first cantilever 63 can be gradually moved toward or away from the second slider plate 611. The vertical position of the first cantilever 63 can be fine-tuned using the first handwheel block 623. The position of each first cantilever 63 can be fine-tuned individually using the corresponding first handwheel block 623. The design of the upper and lower positive and negative threads of the sleeve 62 doubles the adjustment speed. If the heights of the four first cantilever arms 63 need to be adjusted simultaneously, the first handwheel 613 is rotated to move the second slider plate 611 up and down, thereby moving the four first cantilever arms 63 as a whole. In this embodiment, the sleeve 62 is machined from a self-lubricating graphite brass oil-containing bearing. The inner diameter of the oil-containing bearing corresponds to the outer diameter of the guide rod 31, ensuring smooth movement of the guide rod 31 up and down. A first external thread 621 and a second external thread 622 with opposite spiral directions are machined on the outer surface of the oil-containing bearing. The first handwheel block 623 is secured to the center of the sleeve 62 by a set screw on the side wall.

[0077] like Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 and Figure 18 As shown, the second hook 7 is connected to the first cantilever 63, and the second hook 7 is used to hook on the shock absorber spring. The second hook 7 includes a hook portion 71 and an extension column 72. The hook portion 71 is provided with a second hook groove 711. The second hook groove 711 is arc-shaped and the opening is set downward. The second hook groove 711 is used to accommodate the spring wire of the shock absorber spring. The extension column 72 is connected to the back of the hook portion 71, and the extension column 72 is cylindrical. The first cantilever 63 is provided with a first through slot 631, which is a rectangular through slot. The first through slot 631 extends along the length direction of the first cantilever 63, and the first through slot 631 runs from the front side of the first cantilever 63 to the back side of the first cantilever 63. A first displacement block 65 is placed in the first through slot 631. The first displacement block 65 can move along the length direction of the first through slot 631 and rotate in the first through slot 631 to adjust the direction. The first displacement block 65 is a square block. The first displacement block 65 is provided with a first through hole 651 corresponding to the extension column 72. The first through hole 651 is a circular hole. The extension column 72 is clearance-matched with the first through hole 651, so that the extension column 72 can move back and forth relative to the first displacement block 65 or rotate by a certain angle. The upper surface of the first cantilever 63 is provided with a second through slot 633 corresponding to the first through slot 631, and the lower end of the second through slot 633 is connected to the first through slot 631, and a first locking screw 634 is passed through the second through slot 633, and the head of the first locking screw 634 is located above the second through slot 633, and the rod body of the first locking screw 634 is located in the second through slot 633 and can move back and forth along the second through slot 633, and the first locking screw 634 is threadedly connected to the first displacement block 65, and the lower end of the first locking screw 634 is against the extension column 72, and the first locking nut 635 is threadedly connected to the first locking screw 634. After 65 slides to a predetermined position and a predetermined angle in the first through slot 631, and after the extension column 72 moves back and forth and rotates to a predetermined position in the first displacement block 65, tighten the first locking screw 634 so that the lower end of the first locking screw 634 is pressed against the extension column 72, thereby limiting the position of the extension column 72, and then tighten the first locking nut 635. Since the first locking nut 635 is threadedly connected to the first locking screw 634, tightening the first locking nut 635 can make the first locking screw 634 move upward, thereby driving the first displacement block 65 to move upward, thereby fixing the position of the first displacement block 65 in the first through slot 631.

[0078] like Figure 15 、 Figure 19 and Figure 20As shown, the second hook 7 is also provided with a safety buckle, which includes a buckle piece 73, a buckle rod 74, a locking spring 75 and an end block 76. The buckle piece 73 is parallel to the hook portion 71, and a first protrusion 77 is provided on the buckle piece 73. The hook portion 71 is provided with a first groove 712 corresponding to the first protrusion 77. The buckle rod 74 is a cylindrical rod. The buckle piece 73 and the buckle rod 74 are connected to form an L shape. The second hook 7 is provided with a fifth through hole 721 corresponding to the buckle rod 74. The buckle rod 74 passes through the second hook 7 from front to back through the fifth through hole 721. The end block 76 is connected to the tail end of the buckle rod 74. The locking spring 75 is sleeved on the buckle rod 74 and is located from the end block 76 to the second hook 7. When the locking yoke 72 is in the unlocked position, the latch 72 is locked and the locking yoke 72 is in the unlocked position, so that the locking yoke 72 is locked and the locking yoke 72 is locked.

[0079] When the device of this embodiment is used, the automobile shock absorber assembly is held by hand, and one side of the lower end of the shock absorber spring is pushed onto the first lower supporting plate 5. The shock absorber cylinder is located in the notch 501. The part of the first lower supporting plate 5 other than the notch supports a section of spring wire of the shock absorber spring. The first hook 55 is moved along the extension direction of the first positioning block 54 to the top of the shock absorber spring and lowered. The first hook 55 is hooked on the shock absorber spring. The first hook 55 is restricted by the first positioning block 54 as a whole. The first hand wheel 613 is rotated to drive the second slider plate 611 to move downward, thereby driving the four first cantilevers 63 to move downward as a whole. The two first cantilevers 63 located on the side where the shock absorber is located move to one side of the upper end of the shock absorber spring (the first working piece of this embodiment has four cantilevers, which are generally used with the first lower supporting plate 5 (Two cantilevers on the same side), due to the spiral shape of the shock absorber spring, the heights at the corresponding positions of the two first cantilevers 63 are different. By rotating the first handwheel block 623 corresponding to each first cantilever 63, the two first cantilevers 63 are adjusted to the corresponding heights of the corresponding shock absorber springs. The first cantilever 63 is rotated relative to the guide rod 31 to move the corresponding two second hooks 7 toward the shock absorber spring. The front and rear positions of the second hooks 7 are adjusted by adjusting the front and rear positions of the first displacement block 65 in the first through slot 631. The angle of the second hook 7 is adjusted by adjusting the angle of the first displacement block 65 in the first through slot 631. The left and right positions of the extension column 72 in the first displacement block 65 and the angle of the extension column 72 in the first displacement block 65 are adjusted by rotating the extension column 72. The position of the hook 7 and the direction of the second hook groove 711 can make it possible to hook the second hook 7 on the shock absorber spring. Since the up and down height, front and back position, left and right position, angle and direction of the two second hooks 7 can be adjusted separately, the two second hooks 7 can adapt to shock absorber springs of different heights, diameters, different pitches and different spiral angles. After the two second hooks 7 are hooked on the shock absorber spring, tighten the first locking nut and the first locking screw 634 to fix the position of the second hook 7 and the first displacement block 65. Step on the foot switch to control the rise, the cylinder works, the piston rod 21 pushes the first slider plate 4 to rise, and the first slider plate 4 synchronously drives the first lower support plate 5. The first lower support plate 5 lifts the lower end of the shock absorber spring upward. Since there are two second hooks 7 on the upper end of the shock absorber spring The upper part presses against the shock absorber spring, so that the shock absorber spring is compressed. After the shock absorber spring is compressed to the predetermined stroke, the shock absorber cylinder and the shock absorber spring can be separated by removing the top glue nut at the shock absorber top glue, and the shock absorber cylinder is moved downward from the shock absorber spring, and the new shock absorber cylinder is inserted into the shock absorber spring from the bottom (the spring is always in a compressed state at this time), and then the top glue nut at the top glue is threadedly connected to the top of the shock absorber cylinder to complete the replacement of the shock absorber cylinder. After replacement, step on the foot switch that controls the descent, the cylinder works, and the piston rod 21 retracts, driving the first slider plate 4 and the first lower support plate 5 to move downward synchronously until the first lower support plate 5 no longer generates an upward lifting force on the shock absorber spring, and loosen the first locking nut and the first locking screw 634.Remove the two second hooks 7, then remove the two first hooks 55, remove the shock absorber after replacing the shock absorber cylinder, and the work is completed.

[0080] like Figure 9 and Figure 21 As shown, the first slider plate 4 is detachably connected to the second lower support plate 56, and the second lower support plate 56 is arranged in a mirror symmetrical manner to the first lower support plate 5. The second lower support plate 56 is connected to the other side of the first slider plate 4 opposite to the first lower support plate 5, and the first slider plate 4 is provided with a fifth inner hole 42 on this side, and the second lower support plate 56 is connected to the second lower support plate 56 with a second hole rod 563 corresponding to the fifth inner hole 42. The fifth inner hole 42 is a circular hole, and the second hole rod 563 is a cylindrical rod. The second lower support plate 56 is rotatably connected to the first slider plate 4 through the second hole rod 563, and the first slider plate 4 is provided with a third locking screw 421 corresponding to the fifth inner hole 42. When the third locking screw 421 is tightened, the lower end of the third locking screw 421 is pressed against the second hole rod 563, thereby limiting the rotation of the second lower support plate 56. The second lower support plate 56 is provided with a third shoulder 57 corresponding to the first shoulder 51, and a fourth shoulder 58 corresponding to the second shoulder 52. The horizontal height of the second lower support plate 56 spirally increases from the third shoulder 57 to the fourth shoulder 58. The spiral direction of the second lower support plate 56 is opposite to that of the first lower support plate 5. The shock absorber spring has left-handed and right-handed rotation. When the first lower support plate 5 cannot fit and support the shock absorber spring, it means that the spiral directions are opposite. At this time, the shock absorber is placed on the second lower support plate 56 on the other side, and the two first cantilevers 63 and the two second hooks 7 on the other side of the first working piece are used to cooperate to complete the disassembly and assembly of the shock absorber spring. Alternatively, the first lower support plate 5 can be removed and replaced with the second lower support plate 56 on the same side.

[0081] like Figure 22 、 Figure 23 and Figure 24As shown, the first slider plate 4 is connected to a first clamping assembly 81, and the first clamping assembly 81 includes a first plate seat 811, a third screw 812, two first clamping jaws 813 and a first crank 814. The first plate seat 811 is connected to the side of the first slider plate 4 adjacent to the side where the first lower support plate 5 is located, and the third screw 812 is rotatably connected to the first plate seat 811. The third screw 812 adopts a positive and negative thread screw, and the third screw 812 is provided with two sections of external threads with opposite spiral directions. The two first clamping jaws 813 are movably connected to the third screw 812 through a section of external thread, and the first crank 814 is detachably connected to one end of the third screw 812. When the first crank 814 is rotated, the third screw 812 is driven to rotate, and the two first clamping jaws 813 move toward each other or move away from each other. When the two first clamping jaws 813 move toward each other, they are used to clamp the shock absorber cylinder. The bottom frame 1 is connected to a supporting plate 82, which is located on the same side as the first clamping assembly 81, making it convenient to lift the shock absorber cylinder from the bottom (some automobile shock absorber cylinders have a fork at the bottom). The supporting plate 82 is rotatably connected to the fourth screw 821, which is set vertically. A third plate seat 83 connected to the fourth screw 821 is provided below the supporting plate 82. The third plate seat 83 is connected to the two support rods 13 of the bottom frame 1. The lower end of the fourth screw 821 is rotatably connected to the third plate seat 83, and the upper end of the fourth screw 821 is rotatably connected to the first plate seat 811. The third plate seat 83 is movably connected to the first adjusting rod 831 through a bearing. The first adjusting rod 831 is perpendicular to the fourth screw 821. The innermost end of the first adjusting rod 831 is provided with a first bevel gear. The fourth screw 821 A second bevel gear meshing with the first bevel gear is provided at the lower end. Through the 90° cooperation between the first bevel gear and the second bevel gear (the two bevel gears are inside the third plate seat 83, not shown in the figure, and the existing bevel gears can be cooperated), the rotation of the first adjusting rod 831 is converted into the rotation of the fourth screw 821. The first adjusting rod 831 is provided with a first crank hole 8311 corresponding to the first crank 814. The first crank 814 drives the first adjusting rod 831 to rotate, thereby driving the fourth screw 821 to rotate and drive the support plate 82 to move up and down, which can adapt to shock absorber cylinders of different heights.In order to improve the stability when clamping the shock absorber cylinder, a second clamping assembly 84 is also provided. The second clamping assembly 84 includes a second plate seat 841, a fifth screw 842, two second clamping claws 843 and a second crank 845. A sixth screw 844 is also provided between the first plate seat 811 and the third plate seat 83. The upper end of the sixth screw 844 is rotatably connected to the first plate seat 811, and the lower end of the sixth screw 844 is rotatably connected to the third plate seat 83. A second adjusting rod 832 is movably connected to the third plate seat 83 through a bearing. The second adjusting rod 832 is perpendicular to the sixth screw 844. The innermost end of the second adjusting rod 832 is provided with a There is a third bevel gear, and the lower end of the sixth lead screw 844 is provided with a fourth bevel gear meshing with the third bevel gear. Through the 90° cooperation of the third bevel gear and the fourth bevel gear (the two bevel gears are inside the third plate seat 83, not shown in the figure, and the existing bevel gears can be matched), the rotation of the second adjusting rod 832 is converted into the rotation of the sixth lead screw 844. The second adjusting rod 832 is provided with a second crank hole 8321 corresponding to the first crank 814. After the first crank 814 is inserted into the second crank hole 8321, rotating the crank 814 can drive the second adjusting rod 832 to rotate, thereby driving the sixth lead screw 844 to rotate. The second plate seat 841 is rotatably connected to the sixth screw 844, and the height of the second plate seat 841 is adjusted by rotating the sixth screw 844. The sixth screw 844 is arranged parallel to the fourth screw 821. A through hole corresponding to the sixth screw 844 is provided on the supporting plate 82 to facilitate the sixth screw 844 to pass through (the support plate 82 does not affect the rotation of the sixth screw 844 when it moves up and down). The second plate seat 841 is provided with a through hole corresponding to the fourth screw 821 to facilitate the fourth screw 821 to pass through (the second plate seat 841 does not affect the rotation of the fourth screw 821 when it moves up and down). The fifth screw 842 is arranged on the second plate seat 84 1 and is rotatably connected to the second plate seat 841. The fifth screw 842 also adopts a forward and reverse threaded screw. The two second clamping jaws 843 are rotatably connected to the fifth screw 842. One end of the fifth screw 842 is detachably connected to the second crank 845. When the second crank 845 is rotated, the fifth screw 842 can be driven to rotate. When the fifth screw 842 rotates, the two second clamping jaws 843 are driven to move toward or away from each other. When the two second clamping jaws 843 move toward each other, they are used to clamp the shock absorber cylinder to improve the stability of the shock absorber cylinder. The height of the second plate seat 841 is adjustable, so that the height of the two second clamping jaws 843 can be adjusted.

[0082] The present embodiment utilizes the first clamping assembly 81, the second clamping assembly 84, the supporting plate 82 and the upper first cantilever 63 and the second hook 7 to complete the disassembly and assembly of the shock absorber. First, the position of the supporting plate 82 is adjusted according to the height of the shock absorber cylinder, and the shock absorber cylinder is placed on the supporting plate 82. The two first clamping claws 813 of the first clamping assembly 81 are used to clamp the shock absorber cylinder to keep the shock absorber cylinder in a vertical state. Then, the second clamping assembly 84 is adjusted to a suitable height, and the two second clamping claws 843 are used to clamp the shock absorber cylinder again, and the second hooks 7 on the two first cantilevers 63 above the side where the first clamping assembly 81 is located are reversed (originally, one of the two first cantilever arms 63 is used in conjunction with the first lower supporting plate 5, and the other first cantilever arm 63 is used in conjunction with the second lower supporting plate 56, so the second hook 7 is facing the other side), that is, the extension column 72 of the second hook 7 is displaced from the first The first hand wheel 613 is rotated in the opposite direction so that the two second hooks 7 gradually move upward and no longer compress the shock absorber spring, thereby completing the removal of the shock absorber spring. After disassembly, loosen the two first clamping jaws 813 and the two second clamping jaws 843, remove the old shock absorber cylinder, and replace it with a new shock absorber cylinder. The new shock absorber cylinder is fixed by the two first clamping jaws 813 and the two second clamping jaws 843, and then the shock absorber spring is sleeved on the outside of the new shock absorber cylinder. Then, use the two second hooks 7 to compress the shock absorber spring downward. After compressing the shock absorber spring to the predetermined position, screw on the top glue nut at the shock absorber top glue. Then, rotate the first hand wheel 613 in the opposite direction. The two second hooks 7 gradually move upward and no longer compress the shock absorber spring, completing the replacement of the shock absorber cylinder. Two clamping assemblies and a support plate are set on the adjacent side of the first lower support plate 5. In places where there is no air source, the shock absorber spring can be disassembled and assembled by manually moving the second hook 7 downward.

[0083] Example 2

[0084] like Figure 25 、 Figure 26 and Figure 27As shown, the difference from Example 1 is that the first clamping assembly 81, the second clamping assembly 84 and the support plate 82 of this embodiment are arranged on the other side opposite to the first lower support plate 5, and the first clamping assembly 81 is connected to the side of the first slider plate 4 opposite to the first lower support plate 5. The upper tightening assembly also includes a second working piece, which is arranged on the same side of the first clamping assembly 81 of this embodiment. The second working piece includes two second cantilevers 66 and a third suspension block 67. The two second cantilevers 66 and a third suspension block 67 are all movably connected to the second slider plate 611. The second slider plate 611 of the second driving member 61 of this embodiment is a rectangular plate. The second slider 614 is sleeved on the guide rod 31 below the second slider plate 611. The second slider 614 is a strip block. The two ends of the second slider 614 are respectively sleeved on the guide rods 31 on both sides. The second slider 614 is movably connected to the second slider plate 611 through the seventh lead screw 615. The second slider 614 is located between the two guide rods 31 and slides up and down along the guide rod 31. The seventh lead screw 615 is provided with positive and negative teeth. The upper thread is a right-hand thread, and the lower thread is a left-hand thread. The upper half of the seventh lead screw 615 The seventh screw 615 is threadedly connected to the second slider plate 611, and the lower half of the seventh screw 615 is threadedly connected to the second slider 614. The upper end of the seventh screw 615 is connected to the first sleeve 617. By rotating the first sleeve 617, the seventh screw 615 can be driven to rotate. Since the second slider plate 611 is in a fixed state at this time, the seventh screw 615 drives the second slider 614 to move up and down when it rotates, so that the second slider 614 is movably connected to the second slider plate 611 through the seventh screw 615. The height of the two second sliders 614 can be changed by adjusting the corresponding first sleeve 617. In this embodiment, the first working part includes two sliding sleeves 62. The upper half of the sliding sleeve 62 is threadedly connected to the second slider 614. The height of the first cantilever 63 is adjusted by rotating the sliding sleeve 62. In this embodiment, two sliding sleeves 62 and two first cantilever arms 63 are each provided with two, and the two first cantilever arms 63 are located on the side where the first lower supporting plate 5 is located.In this embodiment, the two guide rods 31 on the side where the second working piece is located are movably connected with a second cantilever 66, the second cantilever 66 is sleeved on the guide rod 31 and can slide up and down along the guide rod 31, and a groove corresponding to the second slide 614 is provided on the second cantilever 66, and one end of the second slide 614 is located in the groove of the second cantilever 66. When the second slide 614 slides up and down along the guide rod 31, it drives the second cantilever 66 to slide up and down. The outermost end of the second cantilever 66 is arc-shaped, and the second cantilever 66 is detachably connected. It is connected to a third hook claw 78, which is cylindrical and has a third hook groove 781. The third hook groove 781 is arc-shaped and has an opening facing downward. The third hook groove 781 is used to accommodate the spring wire of the shock absorber spring. The second cantilever 66 is provided with a sixth through hole 661 corresponding to the third hook claw 78. The sixth through hole 661 is a circular hole. Two sixth through holes 661 are provided on each second cantilever 66. The two sixth through holes 661 are arranged up and down to facilitate quick adjustment of the position of the third hook claw 78.

[0085] In this embodiment, the second slider plate 611 is also connected to an eighth lead screw 616, which is also a positive and negative thread design. The upper half of the thread is a right-hand thread, and the lower half of the thread is a left-hand thread. The upper half of the eighth lead screw 616 is threadedly connected to the second slider plate 611, and the lower half of the eighth lead screw 616 is threadedly connected to the third suspension block 67, so that the third suspension block 67 is movably connected to the second slider plate 611 through the eighth lead screw 616. The lower end of the second slider plate 611 is also connected to a guide rod 671 corresponding to the third suspension block 67. The third suspension block 67 is provided with a guide rod 671 corresponding to the guide rod 671. 1, the upper end of the eighth lead screw 616 is also connected to the first sleeve 617. By rotating the first sleeve 617, the eighth lead screw 616 can be driven to rotate. When the eighth lead screw 616 rotates, it drives the third suspension block 67 to move up and down along the guide rod 671. The third suspension block 67 is also provided with a sixth through hole 661 corresponding to the third hook 78, so that the third hook 78 can be detachably connected to the third suspension block 67. The third hook 78 on the third suspension block 67 cooperates with the third hooks 78 on the two second cantilevers 66. The three third hooks 78 hook the shock absorber spring from three directions. During use, by rotating the first hand wheel 613, the second lead screw 612 can be used to drive the second slider plate 611 to move up and down. When the second slider plate 611 moves up and down, the two second sliders 614 move up and down. The two second sliders 614 move up and down, and the two first cantilevers 63 and the two second cantilevers 66 move up and down as a whole, which facilitates and quickly adjusts the height of the cantilever. No matter which side of the cantilever is working, the first hand wheel 613 can quickly adjust its height. When it is necessary to adjust the cantilever height of either side of the two working cantilevers, for example, it is necessary to adjust the second cantilever 66 on the left of the two second cantilevers 66, the sleeve rod is inserted into the first sleeve 617 on the corresponding side (a through hole is provided on the upper top plate 32 at a position corresponding to the first sleeve 617, which facilitates the sleeve rod to pass through from top to bottom. After passing through, the lower end of the sleeve rod is inserted into the first sleeve 617), driving the first sleeve 617 to rotate, fine-tuning the height of the corresponding second slider 614, thereby driving the corresponding second cantilever 66 to move up and down.The two second cantilevers 66 and the third suspension block 67 of this embodiment are provided with three third hooks 78 for hooking the shock absorber spring, the first clamping assembly 81 and the second clamping assembly 84 below are used to fix the shock absorber cylinder, and the support plate 82 is used to support the shock absorber cylinder. Then, by rotating the first hand wheel 613, the second slider plate 611 can be driven downward, and the second slider plate 611 drives the three third hooks 78 downward to press the shock absorber spring downward. When the shock absorber spring deviates left or right, the sleeve rod is inserted into the first sleeve 617 on the deviated side (the three first sleeves 617 are adjustable), thereby adjusting the left and right sides. The height of the third hook 78 is adjusted accordingly to ensure the concentricity of the shock absorber spring and the center of the shock absorber cylinder. The first hand wheel 613 is then rotated to drive the second slider plate 611 downward. After the shock absorber spring is compressed to a predetermined stroke, the shock absorber cylinder and the shock absorber spring can be separated by removing the bolts at the shock absorber top mount. After removing the spring, the old shock absorber cylinder can be lowered and replaced with a new one. The new shock absorber cylinder is fixed with two clamping assemblies and then the old shock absorber spring is placed on the new one. The old shock absorber spring is then compressed to a predetermined stroke and the bolts at the shock absorber top mount are tightened to complete the disassembly and assembly operation. No external air source or other power is required during the process. The shock absorber spring can be disassembled and assembled by manually rotating the first hand wheel 613, making it suitable for use in environments without an external air source.

[0086] Another difference from Example 1 is that the second screw 612 of this embodiment is designed with positive and negative threads, the upper half of the thread of the second screw 612 is a right-hand thread, and the upper half of the thread of the second screw 612 is connected to the upper top plate 32, and the lower half of the thread is a left-hand thread, and the lower half of the thread is connected to the second slider plate 611. Rotating the first hand wheel 613 can also drive the second slider plate 611 to move up and down.

[0087] like Figure 28 and Figure 29As shown, the difference from Example 1 is that the first hook claw 55 of this embodiment is also connected to a tensioning rod 553, the tensioning rod 553 extends downward from the upper end surface of the first hook claw 55, and the middle position of the first positioning block 54 is provided with a first slotted hole 542 corresponding to the tensioning rod 553, and the first lower supporting plate 5 is provided with a second slotted hole 502 corresponding to the first slotted hole 542, the tensioning rod 553 passes downward through the first slotted hole 542 and the second slotted hole 502, and the lower end of the tensioning rod 553 is threadedly connected to a tension rod nut 555, and a tensioning spring 554 is sleeved on the tensioning rod 553, and the lower end of the tensioning spring 554 is blocked by the tensioning rod nut 555. When the first hook claw 55 of this embodiment is in use, the first hook claw 55 is placed on the first positioning block 54, and the first The outer wall of the hook claw 55 is sleeved on the first positioning block 54 to limit the left and right displacement of the first hook claw 55, and the two corresponding serrated parts limit the front and rear displacement of the first hook claw 55. The tensioning rod 553 passes through the first positioning block 54 and the first lower support plate 5, and the tensioning spring 554 is located between the first lower support plate 5 and the tensioning rod nut 555. Under the elastic force of the tensioning spring 554, the first hook claw 55 is pressed onto the first positioning block 54. When the front and rear position of the first hook claw 55 needs to be adjusted, the first hook claw 55 is pulled upward, and the first hook claw 55 overcomes the elastic force of the tensioning spring 554 and moves upward. After the two serrated parts are separated, the first hook claw 55 can be displaced front and rear. After displacing to the predetermined position, the first hook claw 55 is lowered. At this time, the first hook claw 55 is pressed on the first positioning block 54 by the tensioning spring 554.

[0088] Example 3

[0089] like Figure 30 、 Figure 31 、 Figure 32 、 Figure 33 、 Figure 34 、 Figure 35 and Figure 36, which is different from Example 2 in that the second driving member 61 of this embodiment also includes a third slider plate 618, which is a rectangular plate. The third slider plate 618 is located between the second slider plate 611 and the upper top plate 32, and the third slider plate 618 is provided with four through holes corresponding to the four guide rods 31. The third slider plate 618 slides up and down along the guide rod 31, and a ninth lead screw 672 is threadedly connected to the third slider plate 618. The ninth lead screw 672 includes a first working section 6721, a second working section 6722 and a third working section 6723 connected in sequence from top to bottom. The outer wall of the first working section 6721 is provided with a thread and is a right-hand thread, and the outer wall of the second working section 6722 is provided with a thread and is a left-hand thread. The first working section 6721 of the ninth lead screw 672 is threadedly connected to the third slider plate 618, and the second working section 6722 of the ninth lead screw 672 is threadedly connected to the second slider plate 611 is threadedly connected, the outer wall of the third working section 6723 is smooth, and the third working section 6723 passes through the third suspension block 67. The third working section 6723 of the ninth lead screw 672 replaces the guide rod 671 in Example 2 to guide the third suspension block 67 to move up and down. The top of the ninth lead screw 672 is also connected to the first sleeve 617, which is inserted into the first sleeve 617 at the top of the ninth lead screw 672 (a through hole is provided on the upper top plate 32 at a position corresponding to the first sleeve 617 at the top of the ninth lead screw 672, which is convenient for the sleeve rod to pass through from top to bottom. After passing through, the lower end of the sleeve rod is inserted into the first sleeve 617) to drive the first sleeve 617 at the top of the ninth lead screw 672 to rotate, thereby driving the ninth lead screw 672 to rotate. Since the second slider plate 611 is in a fixed state at this time, the rotation of the ninth lead screw 672 drives the third slider plate 618 to move up and down, thereby adjusting the height of the third slider plate 618. In this embodiment, through holes are provided at the locations corresponding to the three first sleeves 617 below the third slider plate 618, allowing the sleeve rod to pass through and drive the rotation of the first sleeves 617 below. A second handwheel block 6151 is also connected to the middle of the seventh lead screw 615. The second handwheel block 6151 is removably fixed to the seventh lead screw 615 via a set screw. Manual rotation of the second handwheel block 6151 allows fine adjustment of the height of the corresponding second slider 614. In this embodiment, a safety block 68 is also connected to the side of the third slider plate 618 corresponding to the first and second cantilever arms 63 and 66. Two pull rods 681 are connected to one side of the safety block 68. A receiving slot corresponding to the two pull rods 681 is provided on the side of the third slider plate 618. The safety block 68 switches between a working position and a stowed position. In the stowed position, the two pull rods 681 are located in the receiving slot, and the safety block 68 abuts the side of the third slider plate 618. In the working position, the safety block 68 is directly above the shock absorber spring.A first limiting through hole 680 is provided on the safety block 68, and the first limiting through hole 680 passes through the safety block 68 up and down. The first limiting through hole 680 is a rectangular through hole. The first limiting through hole 680 is used to place the limiting block 69, and the limiting block 69 is a rectangular bar. The shape of the limiting block 69 corresponds to the first limiting through hole 680. The limiting block 69 can move freely up and down in the first limiting through hole 680 but cannot rotate by itself. A limiting hole 691 corresponding to the first batch of heads 91 is provided at the lower end of the limiting block 69. The first batch of heads 91 are hexagonal screw bits specially used for shock absorbers, such as. Figure 32 As shown, the top of the shock absorber cylinder 92 is connected to the push rod 921, and the outer wall of the push rod 921 is provided with an external thread for threaded connection to the top glue nut 93 for fixing the top glue. The top of the push rod 921 is provided with a push rod hole groove 9211, and the push rod hole groove 9211 is an inner hexagonal hole. The push rod hole groove 9211 of different shock absorbers has different sizes, so the first batch of heads 91 has multiple models. The first batch of heads 91 includes a handle 911, a connecting part 912 and a batch nozzle 913. The handle 911 is located at the upper end and is hexagonal. The connecting part 912 connects the handle 911 to the batch nozzle 913. The batch nozzle 913 is pentagonal, hexagonal or plum blossom-shaped. The handle 911 of the same set of the first batch of heads 91 is hexagonal. The shapes have equal diameters, which is convenient for connecting external wrenches. The screwdriver bits 913 have different diameters, which are convenient for adapting to the ejector rod hole grooves 9211 of different diameters. In the prior art, when removing the ejector nut 93, the screwdriver bits 913 of the appropriate first batch of heads 91 are placed into the ejector rod hole groove 9211. One hand of the person fixes the first batch of heads 91 through an inner hexagonal wrench, and the other hand uses another socket wrench to remove the ejector nut 93 (the socket wrench is put on the ejector nut 93, and the handle of the socket wrench extends outward perpendicular to the socket, which is convenient for the person to apply force. At this time, the first batch of heads 91 pass through the sleeve of the socket wrench and enter the ejector rod hole groove 9211). The process is cumbersome and unsafe. The device of this embodiment is provided with a safety block 68 and a limit block 69, which connects the handle 911 of the first batch of heads 91 through the limit block 69, so that the first batch of heads 91 of different models can be connected. When in use, after the sleeve of the top glue nut 93 is removed and connected to the top glue nut 93, the first batch of heads 91 passes through the sleeve and the nozzle 913 below the first batch of heads 91 enters the ejector hole groove 9211. Since the limit block 69 is connected to the handle 911 on the first batch of heads 91, the limit block 69 limits the rotation of the first batch of heads 91, thereby replacing the person holding the hexagonal wrench by hand, and since the safety block 68 is located above the shock absorber when in the working position, the first batch of heads 91 is located at the center hole of the top glue. After the top glue nut 93 is removed, even if the top glue pops out, it will be blocked by the safety block 68 and will not pop out and hurt people, thereby improving operation safety.

[0090] Example 4

[0091] like Figure 37 、 Figure 38 and Figure 39As shown, the difference from Example 3 is that the limit block 69 of this embodiment is movably connected to the safety block 68, and the front and rear end surfaces of the safety block 68 are provided with second limit holes 683 corresponding to the first limit holes 680. The second limit holes 683 are bar-shaped holes. A first pin 682 is provided in the second limit holes 683. The first pin 682 passes through the safety block 68 from front to back through the two second limit holes 683. The outer diameter of the head at both ends of the first pin 682 is larger than the second limit hole 683, so that the first pin 682 is fixed in the front and rear positions in the second limit hole 683 but can slide left and right. The limit block 69 is provided with a corresponding first pin 682. The third limiting through hole 692 is arranged along the length direction of the limiting block 69 and passes through the limiting block 69 from front to back. The middle part of the first pin 682 is located in the third limiting through hole 692, so as to limit the up and down displacement distance of the limiting block 69. The limiting block 69 is movably connected to the safety block 68 through the first pin 682. When the limiting block 69 is not in use, it does not need to be removed to prevent the limiting block 69 from being lost. When the limiting block 69 is in use, the sudden upward movement of the limiting block 69 can be limited to prevent the top glue from suddenly popping out at the moment after the top glue nut 93 is removed, pushing the first batch of heads 91 and the limiting block 69 suddenly upward to injure people, thereby improving safety during use.

[0092] Example 5

[0093] like Figure 40 As shown, the difference from Example 3 is that the device of this embodiment is further provided with a guardrail, which includes one or more railings 89, which surround the shock absorber spring. The railings 89 are U-shaped rods, and the lower ends of the two railings 89 are detachably connected to the side of the first slider plate 4. The guardrail can be separated from the first slider plate 4 by lifting the guardrail upward. When the first working piece or the second working piece of the device is used to disassemble and assemble the shock absorber spring, the guardrail can be installed on the side where the first working piece or the second working piece is located to prevent the spring from popping out laterally, thereby playing a protective role.

[0094] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A shock absorber spring disassembly and assembly device, characterized in that: The invention comprises a bottom frame (1), a first driving member (2) connected to the bottom frame (1), a guide rod group (3) arranged on the bottom frame (1), a first slider plate (4) connected to the first driving member (2) and sliding on the guide rod group (3), a first lower supporting plate (5) connected to the first slider plate (4), and an upper pressing assembly for pressing the shock absorber spring from the upper part of the shock absorber spring, wherein the first lower supporting plate (5) is provided with a notch (501) corresponding to the shock absorber cylinder, the first lower supporting plate (5) forms a first shoulder (51) and a second shoulder (52) on both sides of the notch (501), the sum of the lengths of the first shoulder (51) and the second shoulder (52) is greater than the length of the notch (501), the horizontal height of the first lower supporting plate (5) spirally decreases from the first shoulder (51) to the second shoulder (52), and the first lower supporting plate (5) is used to compress the shock absorber spring upward.

2. The shock absorber spring disassembly and assembly device according to claim 1, characterized in that. A first inner hole (41) is provided on one side of the first slider plate (4); a first hole rod (53) corresponding to the first inner hole (41) is connected to the first lower supporting plate (5); and the first lower supporting plate (5) is rotatably connected to the first slider plate (4) via the first hole rod (53).

3. The shock absorber spring disassembly and assembly device according to claim 1, characterized in that: The first lower supporting plate (5) is movably connected to a first hook (55) for hooking onto the shock absorber spring.

4. The shock absorber spring disassembly and assembly device according to claim 1, characterized in that: The guide rod group (3) includes more than two guide rods (31), the upper tightening assembly includes a second driving member (61) and a first working member connected to the second driving member (61), the first working member includes a sliding sleeve (62) sleeved on the guide rod (31), a first cantilever (63) connected to the sliding sleeve (62), and a second hook (7) connected to the first cantilever (63), and the second hook (7) is used to hook on the shock absorber spring.

5. The shock absorber spring disassembly and assembly device according to claim 4, characterized in that: The top of the guide rod group (3) is connected to an upper top plate (32), the second driving member (61) includes a second slider plate (611) sliding on the guide rod group (3), a second lead screw (612) movably connected to the second slider plate (611), and a first hand wheel (613) connected to the second lead screw (612), the second lead screw (612) passes through the upper top plate (32) and is threadedly connected to the upper top plate (32), the outer wall of the sliding sleeve (62) is provided with a first external thread (621) and a second external thread (622), the first cantilever (63) is movably connected to the sliding sleeve (62) through the second external thread (622), and the sliding sleeve (62) is movably connected to the second slider plate (611).

6. The shock absorber spring disassembly and assembly device according to claim 5, characterized in that: The second hook (7) includes a hook portion (71) and an extension column (72) connected to the hook portion (71); a first through slot (631) is provided on the first cantilever (63); a first displacement block (65) is provided in the first through slot (631); a first through hole (651) corresponding to the extension column (72) is provided on the first displacement block (65); a first locking screw (634) for limiting the movement of the extension column (72) is threadedly connected on the first displacement block (65); a second through slot (633) connected to the first through slot (631) is provided on the first cantilever (63); the first locking screw (634) passes through the second through slot (633); and a first locking nut (635) is connected to the first locking screw (634).

7. The shock absorber spring disassembly and assembly device according to claim 4, characterized in that: The upper tightening assembly also includes a second working piece, which includes a second cantilever (66) and a third suspension block (67) movably connected to the second driving piece (61), and a third hook (78) is provided on the second cantilever (66) and the third suspension block (67), and the second cantilever (66) is sleeved on the guide rod (31).

8. The shock absorber spring disassembly and assembly device according to claim 7, characterized in that: The second working member includes two second cantilevers (66), a second slide (614) is sleeved on the guide rod (31), the second slide (614) is movably connected to the second driving member (61) through a seventh lead screw (615), and when the seventh lead screw (615) rotates, the second slide (614) is driven to move up and down along the guide rod (31), and when the second slide (614) moves up and down, the second cantilever (66) is driven to move up and down, and the third suspension block (67) is movably connected to the second slider plate (611) through an eighth lead screw (616), and when the eighth lead screw (616) rotates, the third suspension block (67) is driven to move up and down.

9. The shock absorber spring disassembly and assembly device according to claim 1, characterized in that: The first driving member (2) is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder, the first driving member (2) includes a piston rod (21), the bottom frame (1) includes a frame top plate (11), the piston rod (21) passes through the frame top plate (11), and the first slider plate (4) is connected to the top end of the piston rod (21).

10. The shock absorber spring disassembly and assembly device according to claim 1, characterized in that: The first slider plate (4) is detachably connected to a second lower support plate (56), the second lower support plate (56) being mirror-symmetrical to the first lower support plate (5), the first slider plate (4) is further connected to a first clamping assembly (81) for clamping a shock absorber cylinder, and the bottom frame (1) is connected to a support plate (82) for supporting the shock absorber cylinder from below.

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