A shock absorber assembly device and a shock absorber assembly method

Abstract

The application discloses a shock absorber assembling device and a shock absorber assembling method, and relates to the technical field of combined machining. The shock absorber assembling device comprises a plug-in seat provided with a plug-in groove. The groove bottom of the plug-in groove is provided with a jacking assembly. The jacking assembly is not in contact with the groove side wall of the plug-in groove and is provided with a movable part which can move along the axial direction. A screwing assembly is arranged above the jacking assembly. The plug-in seat can rotate along the axial direction away from or close to the screwing assembly. In the axial direction, the plug-in seat can move along the direction close to or away from the screwing assembly. In the shock absorber assembling device, the locking between the first cylinder body and the second cylinder body and the installation of the sealing element are completed based on the plug-in seat, so that the overall size is effectively reduced. After the locking of the locking element is completed, the movable part is used to make the second cylinder body instantaneously rise and fall relative to the first cylinder body by using the movable rod, so that the non-axial stress caused by the manufacturing tolerance or the initial assembly deviation is released, and the long-term reliability of the shock absorber is improved.

Description

Technical Field

[0001] This invention relates to the field of assembly processing technology, and in particular to a shock absorber assembly device and a shock absorber assembly method. Background Technology

[0002] Shock absorbers are widely used buffer and vibration damping components in automobiles, construction machinery, and various equipment. Their main function is to absorb and attenuate vibrations and impacts through their internal structure, thereby improving the stability of equipment operation and user comfort. Common shock absorbers typically include a cylinder, a moving rod, and a sealing assembly. The moving rod can reciprocate within the cylinder, and the sealing assembly achieves sealing and guidance to ensure that the shock absorber has good sealing performance and reliability during operation.

[0003] With the increasing demand for shock absorbers, their production is gradually shifting from manual assembly to automated assembly. In existing technology, conventional automated assembly equipment typically uses the following method to assemble shock absorbers: a conveyor belt or similar structure sequentially passes the basic components of the shock absorber through multiple assembly devices. These devices then assemble different components onto the basic components in turn. After the basic components have passed through these assembly devices, a complete shock absorber is obtained.

[0004] However, the use of conventional automated assembly equipment for shock absorbers presents the following problems: 1. To reduce assembly errors and avoid affecting the long-term reliability of the shock absorbers, robotic arms are usually required in conjunction with machine vision to ensure the installation accuracy of each part during the assembly process. This means that conventional automated assembly equipment requires a large number of components and occupies a large space. 2. Since existing automated assembly equipment generally uses rigid clamping and preset stroke to complete the assembly of shock absorbers, there is a lack of structural adaptive adjustment space before and after the bolt connection is completed. This makes it difficult to release non-axial forces caused by manufacturing tolerances and assembly deviations in a timely manner. That is, off-center stress is easily locked in the assembly structure of the shock absorber, thereby affecting the assembly quality and long-term reliability of the shock absorber.

[0005] In summary, conventional automated assembly equipment used in existing shock absorbers has the disadvantages of occupying a large space and making it difficult to ensure the reliability of the shock absorbers. Summary of the Invention

[0006] The purpose of this invention is to provide a shock absorber assembly device and a shock absorber assembly method, which solves the technical problems of conventional automated assembly equipment for shock absorbers in the prior art, which occupy a large space and make it difficult to guarantee the quality of the shock absorbers.

[0007] To achieve this objective, the present invention adopts the following technical solution: A shock absorber assembly device, comprising: The connector has a socket. The lifting assembly is located at the bottom of the insertion slot and does not contact the side wall of the insertion slot. It has a movable part that can move along the axial direction and is configured to lift instantaneously. The screwing assembly is located above the lifting assembly; The connector is rotatable in a direction away from or towards the axis of the screwing assembly; and in the axial direction, the connector is movable in a direction towards or away from the screwing assembly.

[0008] Optionally, the connector may also have an annular platform at the opening of the connector groove; the inner ring cross-section of the annular platform is the same as the opening cross-section of the connector groove, or the inner ring cross-section of the annular platform covers the opening cross-section of the connector groove.

[0009] Optionally, the annular platform is configured to be inserted into the sealing gap between the first and second cylinders of the shock absorber unit; when the distance between the insertion seat and the screwing assembly is the same as the length of the second cylinder, the annular platform extends into the sealing gap.

[0010] Optionally, the annular platform is configured to partially contact the opening of the second cylinder of the shock absorber unit; when the distance between the plug and the screwing assembly is the same as the length of the second cylinder, the annular platform abuts against the second cylinder.

[0011] Optionally, the lifting assembly includes a lifting cylinder installed in the insertion slot and a movable part disposed on the telescopic end of the lifting cylinder. The movable part can be inserted into the first cylinder of the shock absorber unit and abut against the movable rod in the first cylinder. The distance between the movable part and the insertion seat is a first distance. When at least a portion of the first cylinder of the shock absorber unit is inserted into the insertion slot, the movable rod in the first cylinder inserted into the insertion slot is lifted from the first cylinder by the movable part to the first gap. After the second cylinder is connected to the movable rod, the movable part is driven by the lifting cylinder to move along the axis by a second distance and then reset.

[0012] Optionally, the screwing assembly includes a screwing bracket, a screwing lifting structure disposed on the screwing bracket, a screwing rotating structure disposed on the lifting end of the screwing lifting structure, and a screwing component disposed on the rotating end of the screwing rotating structure; the screwing component is capable of rotating around an axis; When the second cylinder of the shock absorber unit is sleeved outside the first cylinder and a locking component is preset between the second cylinder and the first cylinder, the screwing component is driven down along the axis by the screwing lifting structure and comes into contact with the locking component. It is then driven to rotate around the axis by the screwing rotation structure to drive the locking component to rotate.

[0013] Optionally, the screwing bracket is provided with a buffer on the bottom surface facing the lifting assembly, and the buffer is used for the second cylinder to abut against.

[0014] Optionally, the screwing bracket has a buffer groove on the bottom surface of the lifting assembly corresponding to the position of the buffer member. The buffer groove includes a first groove formed in the screwing bracket and a second groove formed on the bottom wall of the first groove. The side wall of the second groove is inclined. The buffer member is attached to the bottom wall of the first groove, the side wall of the second groove, and the bottom wall of the second groove.

[0015] Optionally, the connector is connected to a connector lifting structure and a connector rotating structure, wherein the connector lifting structure is located on the rotating end of the connector rotating structure, and the connector is located on the lifting end of the connector lifting structure.

[0016] A shock absorber assembly method, employing the shock absorber assembly device described above, includes: Insert the first cylinder into the insertion slot, and let the movable rod be pushed out of the first cylinder by the lifting assembly; The sealing element is fitted onto the outside of the first cylinder, the second cylinder is fitted onto the outside of the first cylinder, and a locking element is pre-installed between the first cylinder and the second cylinder; Move the plug-in socket in the direction close to the screwing assembly, and lock the locking member between the first cylinder and the second cylinder through the screwing assembly; The movable rod is instantly lifted by the moving part of the lifting assembly; Move the connector closer to the screw assembly, so that the connector abuts against the screw assembly and the connector.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The shock absorber assembly device and method provided by this invention allow the first cylinder of the shock absorber unit to be inserted into the insertion slot of the insertion seat. The movable part of the lifting assembly pushes the movable rod in the first cylinder out of the first cylinder. Then, a sealing element and a second cylinder are fitted over the first cylinder, and a locking element is placed at the connection between the first and second cylinders. The insertion seat is then rotated along the axis close to the screwing assembly, facilitating the screwing assembly to lock the locking element between the first and second cylinders. Next, the movable part momentarily lifts, causing the second cylinder to rise and fall relative to the first cylinder. Then, the insertion seat further moves along the direction close to the screwing assembly until the second cylinder abuts against the screwing assembly, using the pressure between the screwing assembly and the insertion seat to compact the sealing element. Finally, the insertion seat rotates along the axis away from the screwing assembly, facilitating the removal of the assembled shock absorber unit.

[0018] In the aforementioned shock absorber assembly device, the locking and sealing components between the first and second cylinders are installed based on the plug-in base, effectively reducing the overall size. The movable part pushes the movable rod in the first cylinder out of the first cylinder, facilitating subsequent assembly. At the same time, after the locking components are locked, the movable rod causes the second cylinder to rise and fall instantaneously relative to the first cylinder. The locking components and the nested structure of the cylinders can redistribute the force under non-rigid constraints, releasing the non-axial force caused by manufacturing tolerances or initial assembly deviations. This avoids the eccentric stress remaining inside the shock absorber unit after the locking components are connected, thereby improving the long-term reliability of the shock absorber unit. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0020] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0021] Figure 1 This is a schematic diagram of the first assembly structure of the shock absorber unit in an embodiment of the present invention; Figure 2 This is a schematic diagram of the second assembly structure of the shock absorber unit in an embodiment of the present invention; Figure 3 This is a schematic diagram of the third assembly structure of the shock absorber unit in an embodiment of the present invention; Figure 4 This is a schematic diagram of the pre-assembly state structure of the shock absorber assembly device provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the shock absorber assembly device in the positive assembly state provided in an embodiment of the present invention; Figure 6 A schematic diagram of the first assembly state of the shock absorber assembly device provided in an embodiment of the present invention; Figure 7 A schematic diagram of the second assembly state of the shock absorber assembly device provided in an embodiment of the present invention; Figure 8This is a schematic diagram of the third assembly state structure of the shock absorber assembly device provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the fourth assembly state structure of the shock absorber assembly device provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the fifth assembly state of the shock absorber assembly device provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of another shock absorber assembly device provided in an embodiment of the present invention; Figure 12 for Figure 9 A magnified schematic diagram of the partial structure at point A in the middle; Illustrations: 100, Shock absorber unit; 101, Sealing gap; 110, First cylinder; 111, First hollow channel; 112, Blocking structure; 120, Second cylinder; 121, Cylinder opening; 122, Second hollow channel; 123, Protruding structure; 124, Locking channel; 130, Movable rod; 140, Locking element; 150, Sealing element; 151, Sealing sleeve; 152, Sealing ring; 160, Spring; 200. Socket; 201. Socket slot; 202. Ring-shaped stage; 210. Flexible ring; 300. Lifting assembly; 310. Moving part; 320. Lifting cylinder; 400, Tightening assembly; 410, Tightening bracket; 411, Buffer groove; 4111, First groove; 4112, Second groove; 420, Tightening component; 430, Buffer component. Detailed Implementation

[0022] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0023] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1: This embodiment discloses a shock absorber assembly device, which is applicable to the scenario of assembling a shock absorber unit 100. Specifically, it is applicable to the nested structure of the shock absorber unit 100 (usually consisting of a large cylinder nested around a small cylinder). In this embodiment, the structure of the shock absorber assembly device is improved so that it meets the assembly requirements of the shock absorber unit 100 while reducing the space occupied and ensuring the long-term reliability of the shock absorber unit 100 after assembly.

[0026] To facilitate understanding by those skilled in the art, the structure of the shock absorber unit 100 in this embodiment will be described, such as... Figure 1 As shown, the shock absorber unit 100 includes a first cylinder 110, in which a first hollow channel 111 is formed. The first hollow channel 111 allows one end of the movable rod 130 to move within the first cylinder 110. To prevent the movable rod 130 from completely sliding out of the first cylinder 110, a blocking structure 112 is provided at one end of the first hollow channel 111 in the first cylinder 110. At the same time, a spring 160 is provided inside the first cylinder 110. One end of the spring 160 abuts against the blocking structure 112, and the other end of the spring 160 abuts against the other end of the movable rod 130. Thus, the movable rod 130 is retracted into the first cylinder 110 without external force, or only one end of the movable rod 130 is left outside the first cylinder 110. like Figure 2 As shown, the shock absorber unit 100 also includes a sealing element 150, which includes a sealing sleeve 151 fitted onto one end of the movable rod 130 and a sealing ring 152 fitted onto the outside of the first cylinder 110. The assembly of the shock absorber unit 100 includes two steps: first, fitting the sealing ring 152 onto the outside of the first cylinder 110; and second, fitting the sealing sleeve 151 onto one end of the movable rod 130. The sealing sleeve 151 and the sealing ring 152 can ensure the internal sealing of the subsequently formed cylinder nesting structure. like Figure 3As shown, the shock absorber unit 100 also includes a second cylinder 120 and a locking member 140. A second hollow channel 122 is formed inside the second cylinder 120. One end of the second hollow channel 122 is for the first cylinder 110 to be inserted. A protruding structure 123 is formed inside the other end of the second hollow channel 122. The protruding structure 123 serves to limit the sealing sleeve 151 and leaves a locking channel 124 for the locking member 140 to pass through. Thus, the locking member 140 can be inserted from the other end of the second hollow channel 122, pass through the locking channel 124, and cooperate with the locking structure on the movable rod 130 to connect the movable rod 130 with the second cylinder 120.

[0027] The specific structure of the shock absorber unit 100 described above is only for the convenience of those skilled in the art to understand the nested structure of the shock absorber unit 100, and should not be simply interpreted as a limitation on the shock absorber assembly device in this embodiment. The shock absorber assembly device in this embodiment is applicable to the shock absorber unit 100 with a nested structure, and has the advantages of small size and high assembly reliability.

[0028] like Figures 4 to 8 As shown, the shock absorber assembly device in this embodiment of the invention includes a plug-in seat 200, a lifting assembly 300, and a screwing assembly 400. The plug-in seat 200 is provided with a plug-in groove 201, which is used to position the first cylinder 110 in the shock absorber unit 100. The screwing assembly 400 is disposed above the lifting assembly 300 and can drive the locking member 140 to rotate, thereby locking the movable rod 130 and the second cylinder 120.

[0029] The lifting assembly 300 is located at the bottom of the insertion slot 201 and does not contact the side wall of the insertion slot 201. It has a movable part 310 that can move along the axial direction. The movable part 310 is used to lift the shock absorber unit 100, specifically to lift the movable rod 130 within the shock absorber unit 100. Since the lifting assembly 300 does not contact the side wall of the insertion slot 201, the first cylinder 110 can fully utilize the gap between the lifting assembly 300 and the side wall of the insertion slot 201, thus optimizing the overall dimensions. The movable part 310 of the lifting assembly 300 has an initial position and a lifting position, such as... Figure 6 As shown, the movable part 310, located in its initial position, exposes a first gap relative to the insertion seat 200, thereby lifting the movable rod 130 from the first cylinder 110 by the first gap, as shown. Figure 9As shown, the movable part 310 in the lifting position has a second gap exposed between the movable part 310 and the plug seat 200. The second gap is greater than the first gap. Through the lifting movement of the movable part 310 from the initial position to the lifting position, the movable part 310 drives the connected movable rod 130 and the second cylinder 120 to rise and fall instantaneously relative to the first cylinder 110, which plays a lifting role on the shock absorber unit 100. That is, it lifts the outer cylinder of the nested structure of the shock absorber unit 100, so that the outer cylinder rises relative to the inner cylinder, that is, it causes the second cylinder 120 to move upward relative to the first cylinder 110.

[0030] In the above-described embodiment, the shock absorber assembly device allows the first cylinder 110 of the shock absorber unit 100 to be inserted into the insertion slot 201 of the insertion seat 200. The movable part 310 of the lifting assembly 300 pushes the movable rod 130 out of the first cylinder 110. Then, a sealing member 150 and a second cylinder 120 are fitted over the first cylinder 110. After the locking member 140 is inserted at the connection between the first cylinder 110 and the second cylinder 120, the insertion seat 200 is rotated along the axis close to the screwing assembly 400, facilitating the screwing assembly 400 to... Locking member 140 is locked between first cylinder 110 and second cylinder 120; then, movable part 310 is momentarily lifted, causing second cylinder 120 to rise and fall momentarily relative to first cylinder 110; next, plug seat 200 moves further along the direction closer to screw assembly 400 until second cylinder 120 abuts against screw assembly 400, and the pressure between screw assembly 400 and plug seat 200 is used to compact seal 150; finally, plug seat 200 rotates along the axis away from screw assembly 400 to facilitate removal of assembled shock absorber unit 100; Specifically, this technical solution, by setting up a plug-in seat 200 with a plug-in position, allows the first cylinder 110 to be stably stored in a plug-in manner during assembly. While ensuring the basic positioning of the first cylinder 110, it also reserves a certain amount of space for posture adjustment during assembly, reducing assembly deviations and internal stresses introduced by forced positioning. Simultaneously, a lifting assembly 300 is set at the plug-in position to push the end of the movable rod 130 out of the first cylinder 110 to the first gap, ensuring that the movable rod 130 is in a suitable position for connection from the initial stage of assembly. Since the pushing action of the movable rod 130 is directly completed by the lifting assembly 300, the process of repeatedly correcting the position through a robotic arm or visual recognition is avoided, simplifying the assembly process structurally and contributing to miniaturization. Next, after the locking member 140 is tightened, it rises to the top position via the movable part 310 and can then be reset, causing the movable rod 130 to drive the second cylinder 120 to move axially upward and then naturally fall back. This process essentially provides a short-stroke adaptive adjustment opportunity for the already connected structure. During this process, the connection of the locking member 140 and the nested cylinder structure can redistribute the force under non-rigid constraints, allowing the non-axial force caused by manufacturing tolerances or initial assembly deviations (such as the second cylinder 120 rotating around the axis of the first cylinder 110 against friction during the tightening of the locking member 140, i.e., a relative position change between the inner wall surface of the second cylinder 120 and the outer wall surface of the first cylinder 110, resulting in non-axial off-center stress) to be released, thereby preventing the off-center stress from being directly locked inside the shock absorber structure after the locking member 140 is connected. After the above adaptive adjustment is completed, the shock absorber unit 100 is pushed upward to press the seal 150. Specifically, this reduces the distance between the screwing assembly 400 and the plug-in seat 200, so that the screwing assembly 400 acts on the sealing sleeve 151 through the second cylinder 120, and the plug-in seat 200 acts on the second cylinder 120 and the sealing ring 152, thereby improving the sealing performance of the second cylinder 120 relative to other parts. At this time, the movable rod 130 and the cylinder are in a more natural coaxial state, and the seal 150 can obtain a more uniform and reasonable force distribution during the pressing process, effectively reducing the risk of seal 150 bias pressure, premature wear or leakage. Unlike the "rigid positioning - direct locking - press fitting" method, this solution adopts the assembly logic of "plug positioning - locking - adaptive adjustment - pressing". Without relying on a complex machine vision system, it achieves effective elimination of assembly deviation and off-center stress, thereby reducing the space occupied by the equipment and improving the assembly quality and long-term reliability of the shock absorber unit 100.

[0031] In summary, in the above-mentioned shock absorber assembly device, the locking between the first cylinder 110 and the second cylinder 120 and the installation of the sealing element 150 are completed based on the plug-in base 200, effectively reducing the overall size. The movable part 310 pushes the movable rod 130 in the first cylinder 110 out of the first cylinder 110, which facilitates subsequent assembly. At the same time, after the locking element 140 is locked, the movable rod 130 is used to make the second cylinder 120 rise and fall instantaneously relative to the first cylinder 110. The locking element 140 and the nested structure of the cylinder can redistribute the force under non-rigid constraint, so that the non-axial force caused by manufacturing tolerances or initial assembly deviations can be released, thereby avoiding the residual off-center stress inside the shock absorber unit 100 after the locking element 140 is connected, thus improving the long-term reliability of the shock absorber unit 100.

[0032] Furthermore, such as Figure 10 and Figure 11As shown, the plug-in base 200 is also provided with an annular platform 202 at the opening of the plug-in groove 201; the inner ring cross section of the annular platform 202 is the same as the opening cross section of the plug-in groove 201, or the inner ring cross section of the annular platform 202 covers the opening cross section of the plug-in groove 201. For example, the fact that the inner ring cross-section of the annular platform 202 is the same as the slot opening cross-section of the insertion groove 201 means that both the inner ring cross-section of the annular platform 202 and the slot opening cross-section of the insertion groove 201 are circular and have the same diameter; the fact that the inner ring cross-section of the annular platform 202 covers the slot opening cross-section of the insertion groove 201 means that both the inner ring cross-section of the annular platform 202 and the slot opening cross-section of the insertion groove 201 are circular, and the inner ring diameter of the annular platform 202 is larger than the slot opening diameter of the insertion groove 201. Thus, along the axial direction, it can be observed that the inner ring of the annular platform 202 is larger than the slot opening of the insertion groove 201, which facilitates the insertion of the first cylinder 110 into the insertion groove 201. That is, the slightly larger annular platform 202 serves as a guide for the first cylinder 110 and avoids over-constraining the first cylinder 110, thereby preserving a certain space for attitude adjustment.

[0033] As an optional implementation method, such as Figure 11 As shown, the annular platform 202 is configured to be inserted into the sealing gap 101 between the first cylinder 110 and the second cylinder 120 of the shock absorber unit 100. When the distance between the insertion seat 200 and the screwing assembly 400 is the same as the length of the second cylinder 120, the annular platform 202 extends into the sealing gap 101. At this time, the shock absorber assembly device in this embodiment is suitable for embedding the sealing ring 152 into the shock absorber unit 100 in the second cylinder 120. It should be further noted that the outer ring surface of the annular platform 202 is conical, which facilitates guiding the annular platform 202 into the sealing gap 101 between the first cylinder 110 and the second cylinder 120, thereby tightly fitting the sealing ring 152 between the first cylinder 110 and the second cylinder 120.

[0034] As another optional implementation, such as Figure 10 As shown, the annular platform 202 is configured to partially contact the opening 121 of the second cylinder 120 of the shock absorber unit 100; when the distance between the insertion seat 200 and the screwing assembly 400 is the same as the length of the second cylinder 120, the annular platform 202 abuts against the second cylinder 120. At this time, the shock absorber assembly device in this embodiment is suitable for shock absorber units 100 where the sealing ring 152 is flush with the second cylinder 120, that is, the assembled shock absorber unit 100, whose sealing ring 152 is flush with the opening 121.

[0035] Understandably, the core of the two implementation methods described above lies in adjusting the height of the plug-in seat 200 so that the distance between the plug-in seat 200 and the screwing assembly 400 is the same as the length of the second cylinder 120. This is equivalent to the plug-in seat 200 abutting the second cylinder 120 against the support of the screwing assembly 400. In addition, the second cylinder 120 is connected to the movable rod 130, causing the sealing sleeve 151 to be pressed between the movable part 310 and the screwing assembly 400, and causing the sealing ring 152 to be pressed between the annular platform 202 and the screwing assembly 400. In essence, this constructs stable and independent force transmission paths for the two types of seals 150 in the axial direction. Specifically, since the sealing sleeve 151 and the sealing ring 152 are supported by different lower support structures (movable part 310 and annular platform 202), their forces are no longer coupled, avoiding the problem of bias pressure on the seal 150 caused by slight tilting of the cylinder or locking off-center load. In addition, the non-axial stress accumulated during the assembly process has been released by the instantaneous lifting action of the movable part 310, so that the first cylinder 110, the second cylinder 120 and the movable rod 130 tend to be in a natural coaxial state. Therefore, in the above-mentioned dual-path pressing process, the seal 150 can complete the final pressing under relatively uniform stress and ideal posture.

[0036] As a preferred embodiment, when the inner ring section of the annular platform 202 covers the groove section of the insertion slot 201, a flexible ring 210 can be provided in the inner ring of the annular platform 202. The flexible ring 210 can be made of rubber. At this time, the inner ring of the annular platform 202 is used to position the side of the flexible ring 210, and the top surface of the insertion seat 200 is used to position the bottom surface of the flexible ring 210. The provision of the flexible ring 210 facilitates the insertion of the first cylinder 110. In this structure, a flexible ring 210 is set in the inner ring of the annular platform 202, and a material with elasticity and deformation capacity such as rubber is selected. When the first cylinder 110 is inserted downward, its outer wall first contacts the flexible ring 210. The flexible ring 210 can absorb the slight eccentricity, angle error or velocity impact generated in the initial stage of insertion of the first cylinder 110 through its own elastic deformation, so that the first cylinder 110 is gradually "flexibly corrected" to a near coaxial state before entering the insertion groove 201. At the same time, the large frictional damping and compliance provided by the rubber material can also reduce the impact noise and surface wear risk caused by direct metal contact, thereby ensuring the long-term reliability of the shock absorber unit 100.

[0037] In this embodiment, the lifting assembly 300 includes a lifting cylinder 320 installed in the insertion slot 201 and a movable part 310 disposed on the telescopic end of the lifting cylinder 320. The movable part 310 can be inserted into the first cylinder 110 of the shock absorber unit 100 and abuts against the movable rod 130 in the first cylinder 110; the distance between the movable part 310 and the insertion seat 200 is a first distance; such as Figures 6 to 8As shown, when at least a portion of the first cylinder 110 of the shock absorber unit 100 is inserted into the insertion slot 201, the movable rod 130 in the first cylinder 110 inserted into the insertion slot 201 is lifted by the movable part 310 from the first cylinder 110 by a first distance; as Figure 9 As shown, when the second cylinder 120 is connected to the movable rod 130, the movable part 310 is driven by the lifting cylinder 320 to move along the axis by a second distance and then reset.

[0038] As an alternative implementation, the lifting assembly 300 may use a hydraulic cylinder, electric push rod, or other structure to lift the movable rod 130.

[0039] Furthermore, such as Figures 8 to 11 As shown, the screwing assembly 400 includes a screwing bracket 410, a screwing lifting structure disposed on the screwing bracket 410, a screwing rotating structure disposed on the lifting end of the screwing lifting structure, and a screwing component 420 disposed on the rotating end of the screwing rotating structure; the screwing component 420 can rotate around the axis; when the second cylinder 120 of the shock absorber unit 100 is sleeved outside the first cylinder 110 and a locking component 140 is preset between the second cylinder 120 and the first cylinder 110, the screwing component 420 is driven by the screwing lifting structure to descend along the axis and contact the locking component 140, and is driven by the screwing rotating structure to rotate around the axis to drive the locking component 140 to rotate.

[0040] The screw-on bracket 410 is used for mounting and supporting components such as the screw-on lifting structure, the screw-on rotating structure, and the screw-on component 420. It also forms the basis for the screw-on assembly 400 and the plug-in seat 200 to jointly compress the shock absorber unit 100. In this embodiment, the screw-on bracket 410 is U-shaped; in other optional embodiments, it can be U-shaped, L-shaped, or other contours, without limitation. The screw-on lifting structure includes, but is not limited to, components such as cylinders and hydraulic cylinders; the screw-on rotating structure includes, but is not limited to, structures such as brushless motors and brushed motors. These structures can drive the screw-on component 420 to rotate, thereby locking the locking component 140. The screw-on component 420 is a structure that matches the locking component 140. For example, if the locking component 140 is a hexagonal countersunk bolt, the screw-on component 420 is a wrench structure with a hexagonal end; if the locking component 140 is a star-shaped countersunk bolt, the screw-on component 420 is a wrench structure with a star-shaped end.

[0041] Furthermore, a buffer 430 is provided on the bottom surface of the screw-on bracket 410 facing the lifting assembly 300, and the buffer 430 is used for the second cylinder 120 to abut against. The buffer 430 can be made of materials such as rubber or elastic plastic.

[0042] Specifically, the bottom surface of the screw-on bracket 410 facing the lifting assembly 300 is provided with a buffer groove 411 corresponding to the position of the buffer member 430. The buffer groove 411 includes a first groove 4111 formed in the screw-on bracket 410 and a second groove 4112 formed in the bottom wall of the first groove 4111. The side wall of the second groove 4112 is inclined. The buffer member 430 is attached to the bottom wall of the first groove 4111, the side wall of the second groove 4112 and the bottom wall of the second groove 4112.

[0043] Specifically, when the plug-in seat 200 continues to move upward and the second cylinder 120 finally comes into contact with the screwing bracket 410 of the screwing assembly 400, the buffer 430 provided on the bottom surface of the screwing bracket 410 bears the axial load. The buffer 430 can undergo elastic deformation during the upward movement of the second cylinder 120, thereby absorbing the instantaneous impact force and changing the axial pressure from abrupt change to gradual loading. This avoids the impact load being directly transmitted to the connection between the already locked cylinder nesting structure and the locking member 140, reducing the risk of internal stress concentration caused by this. Furthermore, by opening a buffer groove 411 consisting of a first groove 4111 and a second groove 4112 on the bottom surface of the screwing bracket 410, and by setting the side of the second groove 4112 at an incline, the buffer member 430, after installation, is not only limited axially by the bottom wall of the first groove 4111, but also simultaneously covered and supported radially and laterally by the inclined side wall of the second groove 4112. This makes the force direction of the buffer member 430 more controllable during the compression deformation process, and less prone to lateral extrusion, local collapse or positional displacement. At the same time, the setting of the inclined side of the groove enables the buffer member 430 to generate a certain radial constraint reaction force when subjected to axial pressure, which promotes the deformation of the buffer member 430 to be more uniform. This is beneficial to evenly distribute the axial load applied to the end face of the second cylinder 120 onto the screwing bracket 410, and avoids off-center loading due to local contact or slight inclination of the end face.

[0044] It should be further explained that the first groove 4111 is coated with adhesive, while the second groove 4112 is not coated with adhesive, thus enabling the installation of the buffer component 430. The second groove 4112 is located inside the bottom wall of the first groove 4111, and its side surface is inclined. During operation, this area is mainly used to provide lateral coverage and deformation guidance for the buffer component 430. When the second groove 4112 is not coated with adhesive, the buffer component 430 maintains a non-adhesive contact with the second groove 4112, allowing the buffer component 430 to undergo controlled sliding and elastic deformation along the inclined groove side surface when the second cylinder 120 is axially pressed, thereby converting the axial load into more uniform volume compression, without causing local stress concentration or deformation obstruction due to the rigid restriction of adhesive. By reliably fixing the buffer 430 on the outside and maintaining its deformation freedom on the inside, the buffer 430 is prevented from being squeezed out or misaligned due to repeated pressure during long-term use. This also ensures that it can fully play its role in energy absorption, buffering, and force equalization during the pressure process, thereby effectively reducing the impact load and off-center load risk between the second cylinder 120 and the screw bracket 410, and improving the long-term reliability of the shock absorber unit 100.

[0045] Based on the above embodiments, the plug-in socket 200 is connected to a plug-in lifting structure and a plug-in rotating structure. The plug-in lifting structure is located on the rotating end of the plug-in rotating structure, and the plug-in socket 200 is located on the lifting end of the plug-in lifting structure. The plug-in lifting structure includes, but is not limited to, devices such as motors with gear and rack structures and linear motors, and the plug-in rotating structure includes, but is not limited to, devices such as rotary cylinders and motors. In this embodiment, no limitation is imposed.

[0046] Example 2: This embodiment also provides a shock absorber assembly method, using the shock absorber assembly device as described in Embodiment 1, including: like Figure 4 As shown, in step S0, the insertion seat 200 is moved away from the axis by the insertion and rotation structure, so that the operator can insert the first cylinder 110 into the insertion slot 201 and adjust the movable part 310 to the initial position. like Figure 6 As shown, in step S1, the first cylinder 110 is inserted into the insertion slot 201, and the movable rod 130 is pushed out of the first cylinder 110 by the lifting assembly 300. Step S2, as follows Figure 6 As shown, the sealing element 150 is fitted over the first cylinder 110, as follows: Figure 7 As shown, the second cylinder 120 is sleeved outside the first cylinder 110, and a locking member 140 is pre-installed between the first cylinder 110 and the second cylinder 120; In this embodiment, steps S1 and S2 are performed manually, while in other alternative embodiments, they can be performed by a robotic arm.

[0047] Step S3, as follows Figure 5 As shown, the plug-in rotating structure moves the plug socket 200 in a direction close to the screwing assembly 400, as... Figure 8 As shown, the locking member 140 is locked between the first cylinder 110 and the second cylinder 120 by the screwing assembly 400; Specifically, the screwing lifting structure of the screwing assembly 400 drives the screwing rotation structure to descend, so that the screwing part 420 passes through the screwing bracket 410 and the buffer 430 until the screwing part 420 contacts the locking part 140, and the screwing rotation structure drives the screwing part 420 to rotate, thereby locking the locking part 140. Step S4, as follows Figure 9 As shown, the movable rod 130 is momentarily lifted by the movable part 310 of the lifting assembly 300. At this time, the movable part 310 is adjusted to the lifting position, and after the movable part 310 is kept in the lifting position, the movable part 310 is reset to the initial position. Step S5, as follows Figure 10 and Figure 11 As shown, the connector 200 is moved in a direction close to the screwing assembly 400, so that the connector 200 abuts between the screwing assembly 400 and the connector 200.

[0048] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A shock absorber assembly device, characterized in that, include; The plug-in socket (200) is provided with a plug-in groove (201). The plug-in socket (200) is also provided with an annular platform (202) at the opening of the plug-in groove (201). A flexible ring (210) is provided on the inner ring of the annular platform (202). The lifting assembly (300) is located at the bottom of the insertion slot (201) and does not contact the side wall of the insertion slot (201). It has a movable part (310) that can move along the axial direction. The movable part (310) is used to lift the shock absorber unit (100). A screwing assembly (400) is disposed above the lifting assembly (300); the screwing assembly (400) includes a screwing bracket (410), a screwing lifting structure disposed on the screwing bracket (410), a screwing rotating structure disposed on the lifting end of the screwing lifting structure, and a screwing component (420) disposed on the rotating end of the screwing rotating structure; the screwing component (420) is capable of rotating around an axis; The connector (200) is rotatable in a direction away from or towards the axis of the screwing assembly (400); and in the axial direction, the connector (200) is movable in a direction towards or away from the screwing assembly (400); The lifting assembly (300) includes a lifting cylinder (320) installed in the insertion slot (201) and a movable part (310) disposed on the telescopic end of the lifting cylinder (320). The movable part (310) can be inserted into the first cylinder (110) of the shock absorber unit (100) and abut against the movable rod (130) in the first cylinder (110). The distance between the movable part (310) and the insertion seat (200) is a first distance. When at least a portion of the first cylinder (110) of the shock absorber unit (100) is inserted into the insertion slot (201), the movable rod (130) in the first cylinder (110) inserted into the insertion slot (201) is lifted from the first cylinder (110) by the movable part (310) to the first gap. When the second cylinder (120) of the shock absorber unit (100) is sleeved outside the first cylinder (110) and a locking member (140) is preset between the second cylinder (120) and the first cylinder (110), the screwing member (420) is driven by the screwing lifting structure to descend along the axis and contact the locking member (140), and is driven by the screwing rotation structure to rotate around the axis to drive the locking member (140) to rotate; After the second cylinder (120) is connected to the movable rod (130), the movable part (310) is driven by the lifting cylinder (320) to move along the axis by a second distance and then reset.

2. The shock absorber assembly device according to claim 1, characterized in that, The inner ring section of the annular platform (202) covers the slot section of the insertion groove (201).

3. The shock absorber assembly device according to claim 2, characterized in that, The annular platform (202) is configured to be inserted into a sealing gap (101) between the first cylinder (110) and the second cylinder (120) of the shock absorber unit (100); when the distance between the plug-in seat (200) and the screw assembly (400) is the same as the length of the second cylinder (120), the annular platform (202) extends into the sealing gap (101).

4. The shock absorber assembly device according to claim 2, characterized in that, The annular platform (202) is configured to partially contact the opening (121) of the second cylinder (120) of the shock absorber unit (100); when the distance between the plug-in seat (200) and the screw assembly (400) is the same as the length of the second cylinder (120), the annular platform (202) abuts against the second cylinder (120).

5. A shock absorber assembly device according to claim 1, characterized in that, The screwing bracket (410) is provided with a buffer (430) on the bottom surface facing the lifting assembly (300), and the buffer (430) is used for the second cylinder (120) to abut against.

6. A shock absorber assembly device according to claim 5, characterized in that, The screw-on bracket (410) has a buffer groove (411) on the bottom surface of the lifting assembly (300) corresponding to the position of the buffer member (430). The buffer groove (411) includes a first groove (4111) formed in the screw-on bracket (410) and a second groove (4112) formed in the bottom wall of the first groove (4111). The side of the second groove (4112) is inclined. The buffer member (430) is attached to the bottom wall of the first groove (4111), the side wall of the second groove (4112), and the bottom wall of the second groove (4112).

7. A shock absorber assembly device according to claim 1, characterized in that, The plug-in socket (200) is connected to a plug-in lifting structure and a plug-in rotating structure. The plug-in lifting structure is located on the rotating end of the plug-in rotating structure, and the plug-in socket (200) is located on the lifting end of the plug-in lifting structure.

8. A method for assembling a shock absorber, characterized in that, The shock absorber assembly device according to any one of claims 1-7 comprises: Insert the first cylinder (110) into the insertion slot (201), and push the movable rod (130) out of the first cylinder (110) by the lifting assembly (300); The sealing element (150) is fitted over the first cylinder (110), the second cylinder (120) is fitted over the first cylinder (110), and a locking element (140) is pre-installed between the first cylinder (110) and the second cylinder (120). The plug-in socket (200) is moved in a direction close to the screwing assembly (400), and the locking member (140) is locked between the first cylinder (110) and the second cylinder (120) by the screwing assembly (400); The movable rod (130) is instantly lifted by the movable part (310) of the lifting assembly (300); Move the connector (200) in a direction close to the screw assembly (400) so that the connector (200) abuts against the screw assembly (400) and the connector (200).

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