Automatic assembly production line for upper supports, buffer blocks and dust covers of shock absorbers

Abstract

The invention relates to an automatic assembly production line for upper supports, buffer blocks and dust covers of shock absorbers, which comprises a circulation line mounted on a workbench, and further comprises a bearing assembly mounted on the circulation line, and a pre-assembling assembly and a press-fitting assembly which are mounted on the workbench and are sequentially arranged in the circulation direction of the circulation line; the press-fitting assembly comprises a lifting assembly located over the bearing assembly, a driving assembly driving the lifting assembly to ascend and descend up and down, a positioning assembly installed in the middle of the lifting assembly and vertically sliding on the lifting assembly, and a hooping assembly installed below the lifting assembly. Therefore, the technical problems of hydraulic oil leakage, untight sealing and the like which are easily caused by manual assembly and influence on the damping force stability of the shock absorber are solved.

Description

Technical Field

[0001] This invention relates to the field of shock absorber technology, and in particular to an automated assembly line for shock absorber upper support, buffer block and dust cover. Background Technology

[0002] The research and development background of shock absorber assembly is closely related to the development of the automotive industry, the upgrading of technical performance requirements, and the optimization of production efficiency. Its core objective is to improve the reliability, performance consistency, and manufacturing efficiency of shock absorbers. As a core component of the automotive suspension system, the assembly process of shock absorbers is constantly upgraded with technological iteration. With the application of hydraulic and pneumatic technologies, such as the emergence of precision components like piston rods and oil seals in hydraulic shock absorbers, the requirements for assembly precision have significantly increased.

[0003] Patent document CN202121084113.6 discloses a shock absorber spring assembly fixture, characterized by comprising a base frame, a top plate, a pressure cylinder, a lower positioning seat, an upper positioning ring, and a vertical rod; the top plate is located above the base frame and is connected to the base frame via the vertical rod; the lower positioning seat is located below the top plate and has a positioning hole for the lower lifting ring of the shock absorber; the output end of the pressure cylinder is connected to the lower positioning seat; the upper positioning ring is fixed to the top plate, and the lower end of the upper positioning ring has a spring seat positioning hole, and the upper end of the upper positioning ring has a through hole for the upper lifting ring of the shock absorber.

[0004] However, in actual use, the inventors found that the shock absorber contains multiple precision components, and manual assembly can easily lead to problems such as hydraulic oil leakage and poor sealing, which affects the stability of the shock absorber's damping force. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by setting up a special structure for the assembly of shock absorbers, which involves the use of a load-bearing component, a pre-assembled component, and a press-fit component. This allows for the assembly of shock absorbers with the assistance of manual operation, combining human labor with modular automated equipment. This solves the technical problem that manual assembly of shock absorbers, which contain multiple precision components, can easily lead to hydraulic oil leakage and poor sealing, thus affecting the stability of the shock absorber's damping force.

[0006] To address the above technical problems, the following technical solution is adopted: an automatic assembly line for shock absorber upper support, buffer block and dust cover, including a transfer line installed on a workbench, a load-bearing component installed on the transfer line, and a pre-assembly component and a pressing component installed on the workbench and arranged sequentially along the transfer line direction; The pressing assembly includes a lifting assembly located directly above the bearing assembly, a driving assembly for driving the lifting assembly to move up and down, a positioning assembly installed in the middle of the lifting assembly and sliding vertically on the lifting assembly, and a clamping assembly installed below the lifting assembly.

[0007] Preferably, the lifting assembly includes a sliding plate, four sets of sliding cylinders respectively installed at the four corners of the sliding plate, and two sets of first mounting posts respectively installed at both ends of the sliding cylinders along the length direction.

[0008] Preferably, the drive assembly includes a first mounting plate, a drive component mounted on the first mounting plate, a guide post with one end connected to the lower end of the first mounting plate and the other end connected to the upper part of the workbench, and two sets of lead screws correspondingly mounted in the first mounting post. The guide post is provided in four sets, and each set of sliding cylinders slides in the corresponding guide post. The driving component includes a servo unit, a first pulley disposed at the output end of the servo unit, and two sets of second pulleys rotatably disposed on the first mounting plate and driving the corresponding lead screws synchronously. The transmission belt drives the first pulley and the second pulleys synchronously.

[0009] Preferably, the positioning component includes a guide mounted on the sliding plate and a positioning member with a positioning groove slidably disposed on the sliding plate along the guide. The guide includes a fixed plate, two sets of first sliding rails symmetrically arranged on the fixed plate, two sets of first sliding seats correspondingly slidably arranged on the first sliding rails, and a first connecting plate connected to the two sets of first sliding seats. The first sliding seats are driven vertically by a first pneumatic unit. The positioning component includes a connecting frame with a U-shaped structure connected to the lower end of the first connecting plate, a pressure plate that is horizontally slidably disposed on the connecting frame, a pressure head that is installed on the lower end of the pressure plate and matched with the upper end structure of the end cap, and a handle disposed on one side of the pressure plate. The first connecting plate and the pressure plate are coaxially provided with a first positioning hole in the vertical direction, and a first positioning bolt passes through the first positioning hole to fix the first connecting plate and the pressure plate.

[0010] Preferably, the clamping assembly includes two sets of clamping members symmetrically arranged on both sides of the positioning member and moving relative to each other. Each clamping member includes a second sliding rail installed on the lower surface of the sliding plate, a second sliding seat slidably arranged on the second sliding rail, a second connecting plate connected to the second sliding seat, and an annular block connected to the inner side of the second connecting plate. The second sliding seat is driven vertically by a second pneumatic unit.

[0011] Preferably, the pressing assembly further includes a tightening assembly, which includes a first column mounted on the workbench, a third sliding rail mounted on the first column, a third sliding seat slidably disposed on the third sliding rail, and a tightening gun unit elastically mounted on the third sliding seat and located above the positioning assembly. The third sliding seat is driven vertically by a third pneumatic unit.

[0012] Preferably, the bearing assembly includes a sliding disc that slides horizontally on the flow line and has a second positioning hole at the bottom, a tray that is detachably disposed on the sliding disc, a first mounting seat mounted on the tray, a second mounting seat that is rotatably disposed on the first mounting seat, a side plate located on one side of the second mounting seat, a second positioning bolt that is rotatably disposed on the side plate and intermittently abuts against the second mounting seat, and a limiting member mounted on the first mounting seat. The second mounting base is provided with a first stop, a second stop, and a third stop in sequence along the length direction, and the lower end of the shock absorber is adapted to be placed on the first stop, the second stop, and the third stop; The limiting component includes a support plate installed on the second column, a support groove through which a tube passes through the support plate, and two sets of sliding rods symmetrically arranged on both sides of the support groove and located at the front end of the support groove opening. One end of the sliding rod is horizontally and elastically installed on the support plate, and a guide wheel is rotatably provided on the other end.

[0013] Preferably, the transfer line is also provided with a lifting assembly including a second mounting plate installed on the workbench, a lifting plate that slides vertically on the second mounting plate driven by a fourth pneumatic unit, and a second positioning column installed on the lifting plate and matched with the second positioning hole. Lifting components are installed at both the pre-assembly station and the pressing station.

[0014] Preferably, the pre-assembled components include several sets of material frames for placing the upper support, buffer block, spring and dust cover respectively.

[0015] As another preferred embodiment, it also includes a protective component, which includes a fourth sliding rail, a fourth sliding seat slidably disposed on the fourth sliding rail, and a third positioning column vertically mounted on the fourth sliding seat and conforming to the upper support structure. A protective cylinder is fitted onto the third positioning column, and the fourth sliding seat is driven by a fifth pneumatic unit to perform horizontal reciprocating transmission.

[0016] The beneficial effects of this invention are: (1) In this invention, the shock absorber is assembled by setting up a bearing component in conjunction with a pre-assembled component and a press-fit component, and is supplemented by manual operation. This combines manual labor with modular automated equipment to achieve precise assembly and a shorter investment return cycle. For the high-precision process of pre-pressing parts, manual labor can judge subtle differences based on experience. This, combined with automated equipment, achieves efficient collaboration between manual decision-making and mechanical execution, reduces systematic errors, and ensures product consistency. (2) In this invention, the lifting component works in conjunction with the bearing component. On the one hand, the second positioning pin is inserted into the second positioning hole of the sliding disk to ensure that the horizontal position of the sliding disk is accurate and unique. Then, it is adjusted according to the actual situation to lift it to a suitable height, so as to support the bearing component while stably lifting it, ensuring product consistency and avoiding random errors in manual operation. (3) In this invention, by setting up protective components, protective cylinders are inserted into the upper support of the pre-assembled shock absorber at the pre-assembly station, so that the upper support, buffer block, end cover and dust cover in the moving state can be limited during the transfer process and the pressing and positioning process, and will not fall, shake or shift. In this way, the pressing process ensures that each component is correctly aligned and fixed, and avoids affecting the performance and reliability of the final product.

[0017] In summary, this equipment has the advantages of precise assembly and a high degree of automation, making it particularly suitable for the field of shock absorber technology. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0021] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0022] Figure 4 Schematic diagram of the press-fit assembly Figure 1 .

[0023] Figure 5 Schematic diagram of the press-fit assembly Figure 2 .

[0024] Figure 6Schematic diagram of the press-fit assembly Figure 3 .

[0025] Figure 7 Schematic diagram of the press-fit assembly Figure 4 .

[0026] Figure 8 This is a structural diagram of the tightening assembly.

[0027] Figure 9 Schematic diagram of the supporting component Figure 1 .

[0028] Figure 10 Schematic diagram of the supporting component Figure 2 .

[0029] Figure 11 This is a schematic diagram of the lifting component. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] Example 1 like Figure 1-3 As shown, an automatic assembly line for shock absorber upper support, buffer block and dust cover includes a transfer line 2 installed on a workbench 1, a bearing component 3 installed on the transfer line 2, a pre-assembly component 4 and a pressing component 5 installed on the workbench 1 and arranged sequentially along the transfer line 2. The pressing assembly 5 includes a lifting assembly 51 located directly above the bearing assembly 3, a driving assembly 52 that drives the lifting assembly 51 to move up and down, a positioning assembly 53 installed in the middle of the lifting assembly 51 and sliding vertically on the lifting assembly 51, and a clamping assembly 54 installed below the lifting assembly 51.

[0032] In this embodiment, the shock absorber is assembled by setting up the bearing component 3 in conjunction with the pre-assembly component 4 and the pressing component 5, and supplemented by manual operation. This combines human labor with modular automated equipment to achieve precise assembly and a shorter return on investment cycle. For the high-precision process of pre-pressing parts, the human can judge subtle differences based on experience, and work with the automated equipment to achieve efficient coordination between human decision-making and mechanical execution, reduce systematic errors, and ensure product consistency.

[0033] Furthermore, such as Figure 2 As shown, the lifting assembly 51 includes a sliding plate 511, four sets of sliding cylinders 512 respectively installed at the four corners of the sliding plate 511, and two sets of first mounting posts 513 respectively installed at both ends of the sliding cylinders 512 along the length direction.

[0034] The drive assembly 52 includes a first mounting plate 521, a drive component 522 mounted on the first mounting plate 521, a guide post 523 with one end connected to the lower end of the first mounting plate 521 and the other end connected to the upper part of the workbench 1, and two sets of lead screws 524 correspondingly installed in the first mounting post 513. The guide post 523 is provided in four sets, and each set of sliding cylinders 512 slides in the corresponding guide post 523. The driving component 522 includes a servo unit 5221, a first pulley 5222 disposed at the output end of the servo unit 5221, and two sets of second pulleys 5223 rotatably disposed on the first mounting plate 521 and driving the corresponding lead screw 524 synchronously. The transmission belt 5224 drives the first pulley 5222 and the second pulley 5223 synchronously.

[0035] In detail, the servo unit 5221 starts and drives the first pulley 5222 to rotate. The first pulley 5222 drives the first pulley 5222 and the second pulley 5223 to rotate synchronously through the transmission belt 5224. The lead screw 524 drives the sliding plate 511 to move up and down.

[0036] Furthermore, such as Figure 5 , 7 As shown, the positioning component 53 includes a guide 531 mounted on the sliding plate 511 and a positioning component 532 that is vertically slidably disposed along the guide 531 in a positioning groove 530 opened on the sliding plate 511. The guide 531 includes a fixed plate 5311, two sets of first sliding rails 5312 symmetrically arranged on the fixed plate 5311, two sets of first sliding seats 5313 correspondingly slidably arranged on the first sliding rails 5312, and a first connecting plate 5314 connected to the two sets of first sliding seats 5313. The first sliding seats 5313 are driven vertically by a first pneumatic unit 5315. The positioning component 532 includes a connecting frame 5321 with a U-shaped structure connected to the lower end of the first connecting plate 5314, a pressure plate 5322 horizontally slidably disposed on the connecting frame 5321, a pressure head 5323 installed on the lower end of the pressure plate 5322 and matched with the upper end structure of the end cap, and a handle 5324 disposed on one side of the pressure plate 5322. The first connecting plate 5314 and the pressure plate 5322 are coaxially provided with a first positioning hole 5325 in the vertical direction. A first positioning bolt 5326 passes through the first positioning hole 5325 to fix the first connecting plate 5314 and the pressure plate 5322.

[0037] In this embodiment, by setting a guide 531 in conjunction with the lifting assembly 51, the pressure head 5323 is lowered in three stages. In the first stage, the lifting assembly 51 quickly moves down to above the end cover, and then the guide 531 moves to make the pressure head 5323 fully act on the upper surface of the end cover and contact it. In the third stage, the lifting assembly 51 quickly compresses the spring through the end cover to facilitate the pre-installation of the nut. Through graded buffering and step-by-step displacement, energy dissipation and structural protection are achieved, which improves safety and enhances adaptability.

[0038] The pressure plate 5322 is detachably mounted on the connecting frame 5321, enabling quick replacement of pressure heads 5323 of multiple specifications, thus adapting to shock absorber products of different specifications. The first connecting plate 5314 is then fixedly installed to the pressure plate 5322 by the first positioning bolt 5326, making its pressing position controllable. This allows for rapid switching between multi-variety, small-batch production modes, enabling the production line to quickly respond to changes in market orders and reduce equipment adjustment costs caused by product iterations. It is especially suitable for customized production scenarios.

[0039] Furthermore, such as Figure 6 As shown, the clamping assembly 54 includes two sets of clamping members 541 symmetrically arranged on both sides of the positioning member 532 and movable relative to each other. Each clamping member 541 includes a second sliding rail 5411 installed on the lower surface of the sliding plate 511, a second sliding seat 5412 slidably arranged on the second sliding rail 5411, a second connecting plate 5413 connected to the second sliding seat 5412, and an annular block 5414 connected to the inner side of the second connecting plate 5413. The second sliding seat 5412 is driven vertically by the second pneumatic unit 5414.

[0040] In this embodiment, by setting a clamping component 54 to fit and clamp the outer periphery of the spring and move down synchronously with the sliding plate 511, the clamping component 54 completes real-time limiting of the spring during the spring compression process, preventing the spring from shifting during the active state, ensuring the coaxial structure of the spring and the upper support, and improving the consistency of the shock absorber performance.

[0041] Specifically, when the pressure head 5323 acts on the end cap, the second pneumatic unit 5414 is activated, the second sliding seat 5412 moves along the second sliding track 5411, and the annular block 5414 on the second connecting plate 5413 moves toward the spring. The two sets of annular blocks 5414 move relative to each other to hold the spring. The movement distance can be adjusted in real time according to the size of the spring.

[0042] Furthermore, such as Figure 8As shown, the pressing assembly 5 also includes a tightening assembly 6. The tightening assembly 6 includes a first column 61 mounted on the workbench 1, a third sliding rail 62 mounted on the first column 61, a third sliding seat 63 slidably mounted on the third sliding rail 62, and a tightening gun unit 64 elastically mounted on the third sliding seat 63 and located above the positioning assembly 53. The third sliding seat 63 is driven vertically by a third pneumatic unit 65.

[0043] In this embodiment, by setting the tightening component 6, the pre-tightened nut is tightened, and then the pre-installed movable parts are clamped and positioned. That is, after the pre-tightened nut is installed, the tightening gun unit 64 is driven to move down to above the nut by the third sliding seat 63. At this time, the wire end is inserted into the tightening gun unit 64 by the operator, and the tightening gun unit 64 tightens the nut.

[0044] Furthermore, such as Figure 9-10 As shown, the bearing assembly 3 includes a sliding disk 31 that slides horizontally on the transfer line 2, a tray 32 that is detachably disposed on the sliding disk 31, a first mounting seat 33 mounted on the tray 32, a second mounting seat 34 that is rotatably disposed on the first mounting seat 33, a side plate 35 located on one side of the second mounting seat 34, a second positioning bolt 36 that is rotatably disposed on the side plate 35 and intermittently abuts against the second mounting seat 34, and a limiting member 37 mounted on the first mounting seat 33; The second mounting base 34 is provided with a first stop 341, a second stop 342 and a third stop 343 in sequence along the length direction, and the lower end of the shock absorber is adapted to be placed on the first stop 341, the second stop 342 and the third stop 343; The limiting member 37 includes a support plate 372 installed on the second column 371, a support groove 373 through which a tube is opened on the support plate 372, and two sets of sliding rods 374 symmetrically arranged on both sides of the support groove 373 and located at the front end of the opening of the support groove 373. One end of the sliding rod 374 is horizontally and elastically installed on the support plate 372, and a guide wheel 375 is rotatably arranged on the other end.

[0045] In this embodiment, the product is installed and transferred by setting up the bearing component 3. On the one hand, it can be aligned in position at both the pre-assembly station 101 and the pressing station 102, and complete the precise assembly at that position. At the same time, the second mounting base 34 is specially designed to adapt to the stable installation of the shock absorber body. With its rotatability, the long cylinder of the shock absorber is installed in an inclined state for easy operation. The long cylinder is guided into the support groove 373 by the limiting component 37 for limiting, and then the second mounting base 34 is fixed by the second positioning bolt 36 to keep the shock absorber body in a vertical state. This ensures that each component can be assembled according to the design requirements, which greatly improves the accuracy and stability of the assembly.

[0046] In detail, the shock absorber body is placed on the first stop block 341, the second stop block 342, and the third stop block 343 and straightened. The shock absorber body passes through the guide wheel 375, which compresses the sliding rod 374. The two sets of guide wheels 375 open the door, and the shock absorber body enters the support groove 373 under the guidance of the guide wheels 375. The two sets of guide wheels 375 reset and close the door under the elastic action. The shock absorber body is stably limited in the support groove 373. Then, the second positioning bolt 36 is manually tightened to position the second mounting base 34 so that it is in a unique vertical position.

[0047] Furthermore, such as Figure 11 As shown, the transfer line 2 is also provided with a lifting assembly 7, including a second mounting plate 71 installed on the workbench 1, a lifting plate 73 driven vertically to slide on the second mounting plate 71 by a fourth pneumatic unit 72, and a second positioning column 74 installed on the lifting plate 73 and matched and inserted with the second positioning hole 70. Lifting components 7 are installed on both the pre-assembly station 101 and the pressing station 102.

[0048] In this embodiment, by setting up the lifting component 7 in conjunction with the bearing component 3, the second positioning pin 74 is inserted into the second positioning hole 70 of the sliding disk 31 to ensure that the horizontal position of the sliding disk 31 is accurate and unique. Then, it is adjusted and lifted to a suitable height according to the actual situation, so as to stably support the bearing component 3, ensure product consistency, and avoid random errors in manual operation.

[0049] Furthermore, such as Figure 3 As shown, the pre-assembled component 4 includes several sets of material frames 41 for placing the upper support, buffer block, spring and dust cover respectively.

[0050] In detail, the upper support, buffer block, dust cover, and spring are installed on the shock absorber body in sequence by hand.

[0051] Example 2 like Figure 3As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows: Furthermore, such as Figure 3 As shown, it also includes a protective component 8, which includes a fourth sliding rail 81, a fourth sliding seat 82 slidably disposed on the fourth sliding rail 81, and a third positioning column 83 vertically mounted on the fourth sliding seat 82 and conforming to the upper support structure. A protective cylinder 84 is fitted and inserted into the third positioning column 83. The fourth sliding seat 82 is driven by a fifth pneumatic unit to perform horizontal reciprocating transmission.

[0052] In this embodiment, by setting up a protective component 8, a protective cylinder 84 is inserted into the upper support of the pre-assembled shock absorber at the pre-assembly station 101, so that the upper support, buffer block, end cap and dust cover in the moving state can be limited during the transfer and pressing positioning process, and will not fall, shake or shift. In this way, the pressing process can ensure that each component is correctly aligned and fixed, and avoid affecting the performance and reliability of the final product.

[0053] It is worth mentioning that the protective cylinder 84 is temporarily placed on the third positioning column 83 and switched between the pre-assembly station 101 and the pressing station 102 by the fourth sliding seat 82. This makes it convenient for operators to pick up and put down the protective cylinder 84, and the protective cylinder 84 can be reused multiple times. This optimizes the connection of production links, reduces idle time and resource consumption, and improves the overall efficiency of the enterprise.

[0054] It should be noted that the lower end of the protective cylinder 84 is designed to mimic the shape of the upper support structure. Therefore, simply inserting the protective cylinder 84 into the upper support can prevent the end cap, spring, and other accessories from falling off. During the pressing process, the protective cylinder 84 can be manually pulled up and placed on the third positioning post 83.

[0055] Work process Step 1, Pre-installation process: When the load-bearing components are in the pre-installation station, first place the shock absorber body at an angle on the second mounting base, then straighten the second mounting base, and lock the shock absorber body after straightening. Then, the manual staff will start to install each accessory in sequence, and finally put the protective sleeve on the upper support. Step 2, positioning process: After the load-bearing component is loaded with accessories, the shock absorber is transferred to the pressing station. The lifting component drives the load-bearing component to lift up, and then the driving component drives the lifting component to descend. The protective cylinder passes through the pressure plate, the first pneumatic unit of the guide component is activated, the pressure plate acts on the end cover, and then the protective cylinder is removed manually. Step 3, pressing process: The clamping assembly is activated, the two sets of ring blocks clamp the spring, the drive assembly drives the lifting assembly to descend again, the end cover and spring are pressed down, the upper end of the upper support passes through the positioning groove, the nut is pre-tightened onto the upper support manually, and then the tightening gun unit tightens the nut.

[0056] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0057] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0058] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automated assembly line for a shock absorber upper support, buffer block, and dust cover, comprising a transfer line mounted on a workbench, characterized in that, It also includes a carrier component installed on the conveyor line, and a pre-assembled component and a press-fit component installed on the workbench and arranged sequentially along the flow direction of the conveyor line; The pressing assembly includes a lifting assembly located directly above the bearing assembly, a driving assembly for driving the lifting assembly to move up and down, a positioning assembly installed in the middle of the lifting assembly and sliding vertically on the lifting assembly, and a clamping assembly installed below the lifting assembly.

2. The automatic assembly line for a shock absorber upper support, buffer block, and dust cover according to claim 1, characterized in that, The lifting assembly includes a sliding plate, four sets of sliding cylinders respectively installed at the four corners of the sliding plate, and two sets of first mounting posts respectively installed at both ends of the sliding cylinders along the length direction.

3. The automatic assembly line for a shock absorber upper support, buffer block, and dust cover according to claim 2, characterized in that, The drive assembly includes a first mounting plate, a drive component mounted on the first mounting plate, a guide post with one end connected to the lower end of the first mounting plate and the other end connected to the upper part of the workbench, and two sets of lead screws corresponding to the first mounting post. The guide post is provided in four sets, and each set of sliding cylinders slides in the corresponding guide post. The driving component includes a servo unit, a first pulley disposed at the output end of the servo unit, and two sets of second pulleys rotatably disposed on the first mounting plate and driving the corresponding lead screws synchronously. The transmission belt drives the first pulley and the second pulleys synchronously.

4. The automatic assembly line for a shock absorber upper support, buffer block, and dust cover according to claim 2, characterized in that, The positioning component includes a guide mounted on the sliding plate and a positioning component with a positioning groove opened on the sliding plate that slides vertically along the guide. The guide includes a fixed plate, two sets of first sliding rails symmetrically arranged on the fixed plate, two sets of first sliding seats correspondingly slidably arranged on the first sliding rails, and a first connecting plate connected to the two sets of first sliding seats. The first sliding seats are driven vertically by a first pneumatic unit. The positioning component includes a connecting frame with a U-shaped structure connected to the lower end of the first connecting plate, a pressure plate that is horizontally slidably disposed on the connecting frame, a pressure head that is installed on the lower end of the pressure plate and matched with the upper end structure of the end cap, and a handle disposed on one side of the pressure plate. The first connecting plate and the pressure plate are coaxially provided with a first positioning hole in the vertical direction, and a first positioning bolt passes through the first positioning hole to fix the first connecting plate and the pressure plate.

5. The automatic assembly line for a shock absorber upper support, buffer block, and dust cover according to claim 4, characterized in that, The clamping assembly includes two sets of clamping members symmetrically arranged on both sides of the positioning member and moving relative to each other. Each clamping member includes a second sliding rail installed on the lower surface of the sliding plate, a second sliding seat slidably arranged on the second sliding rail, a second connecting plate connected to the second sliding seat, and an annular block connected to the inner side of the second connecting plate. The second sliding seat is driven vertically by a second pneumatic unit.

6. The automatic assembly line for a shock absorber upper support, buffer block, and dust cover according to claim 1, characterized in that, The pressing assembly also includes a tightening assembly, which includes a first column mounted on the workbench, a third sliding rail mounted on the first column, a third sliding seat slidably mounted on the third sliding rail, and a tightening gun unit elastically mounted on the third sliding seat and located above the positioning assembly. The third sliding seat is driven vertically by a third pneumatic unit.

7. The automatic assembly line for a shock absorber upper support, buffer block, and dust cover according to claim 1, characterized in that, The bearing assembly includes a sliding disk that slides horizontally on the conveyor line, a tray that is detachably disposed on the sliding disk, a first mounting seat mounted on the tray, a second mounting seat that is rotatably disposed on the first mounting seat, a side plate located on one side of the second mounting seat, a second positioning bolt that is rotatably disposed on the side plate and intermittently abuts against the second mounting seat, and a limiting member mounted on the first mounting seat. The second mounting base is provided with a first stop, a second stop, and a third stop in sequence along the length direction, and the lower end of the shock absorber is adapted to be placed on the first stop, the second stop, and the third stop; The limiting component includes a support plate installed on the second column, a support groove through which a tube passes through the support plate, and two sets of sliding rods symmetrically arranged on both sides of the support groove and located at the front end of the support groove opening. One end of the sliding rod is horizontally and elastically installed on the support plate, and a guide wheel is rotatably provided on the other end.

8. The automatic assembly line for a shock absorber upper support, buffer block, and dust cover according to claim 1, characterized in that, The transfer line is also equipped with a lifting assembly, including a second mounting plate installed on the workbench, a lifting plate that slides vertically on the second mounting plate driven by a fourth pneumatic unit, and a second positioning column installed on the lifting plate and matched with the second positioning hole. Lifting components are installed at both the pre-assembly station and the pressing station.

9. The automatic assembly line for a shock absorber upper support, buffer block, and dust cover according to claim 1, characterized in that, The pre-assembled components include several sets of material frames for placing the upper support, buffer block, spring, and dust cover, respectively.

10. The automatic assembly line for a shock absorber upper support, buffer block, and dust cover according to claim 1, characterized in that, It also includes a protective component, which includes a fourth sliding rail, a fourth sliding seat slidably disposed on the fourth sliding rail, and a third positioning column vertically mounted on the fourth sliding seat and conforming to the upper support structure. A protective cylinder is fitted and inserted into the third positioning column. The fourth sliding seat is driven by a fifth pneumatic unit to perform horizontal reciprocating transmission.

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