Air spring shock absorber piston rod nut locking equipment

Abstract

According to the nut locking device for the piston rod of the air spring shock absorber, the air spring shock absorber is clamped and positioned on the fixing base only through the first clamping mechanism, and meanwhile the piston rod of the shock absorber is clamped and positioned on the fixing base through the second clamping mechanism; and then the nut is locked on the screw rod at the tail end of the piston rod of the shock absorber through the nut locking mechanism, so that the screw rod can be effectively prevented from axially moving, inclining or rotating in the nut locking process, the nut locking working efficiency can be improved, the nut locking precision and consistency can be improved, and the service life of the nut is prolonged. Therefore, the problems that in the prior art, the nut is manually locked to a screw at the tail end of the piston rod of the shock absorber, due to the fact that the screw is unbalanced in stress, axial movement or inclination or rotation is likely to happen, the nut locking work efficiency is low, and the nut locking precision and consistency are difficult to control are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing and manufacturing air spring shock absorbers, and in particular relates to a piston rod nut locking device for an air spring shock absorber. Background Art

[0002] During the assembly process of the air spring shock absorber piston rod, it is necessary to lock the anti-drop nut on the end screw of the air spring shock absorber piston rod. Currently, the nut is usually locked on the end screw of the shock absorber piston rod manually. During the nut locking process, the end screw of the shock absorber piston rod is subject to external force and is prone to tilt or rotation, which not only leads to low efficiency of nut locking, but also makes it difficult to control the accuracy and consistency of nut locking, which seriously affects the quality of air spring shock absorber product assembly. Utility Model Content

[0003] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiments of the utility model is to provide an air spring shock absorber piston rod nut locking device to solve the technical problems existing in the prior art that the nut is locked on the end screw of the shock absorber piston rod manually, the screw is prone to tilt or rotation, resulting in low efficiency of nut locking, and the accuracy and consistency of nut locking are difficult to control.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an air spring shock absorber piston rod nut locking device, comprising:

[0005] Operation table;

[0006] A fixing seat, arranged on the table top of the operating table;

[0007] A first clamping mechanism, used for clamping and positioning the air spring shock absorber on the fixing seat, wherein the first clamping mechanism is arranged at the middle or bottom of the fixing seat;

[0008] a second clamping mechanism, used for clamping and positioning the shock absorber piston rod, wherein the second clamping mechanism is disposed on the top of the fixing seat; and

[0009] A nut locking mechanism, used for locking the nut onto the screw at the end of the shock absorber piston rod;

[0010] Among them, the nut locking mechanism includes a support base fixedly set on the operating table, a slide mechanism set on the support base and sliding along the axial direction of the screw, a locking tool rotatably set on the slide mechanism, and a first motor that drives the locking tool to rotate, the first motor is fixedly installed on the slide mechanism, and the motor shaft of the first motor is transmission connected to the locking tool.

[0011] Furthermore, the second clamping mechanism includes a first clamp fixedly disposed on the fixed seat, a second clamp for cooperating with the first clamp to clamp and position the shock absorber piston rod, and a first linear drive mechanism for driving the second clamp to approach or move away from the first clamp, and the first linear drive mechanism is fixedly disposed on the fixed seat.

[0012] Furthermore, the second clamping mechanism also includes a first guide post for guiding the second clamp to move radially along the screw rod and a first sliding sleeve provided on the first guide post, the first sliding sleeve is connected to the fixed seat, and the first guide post is connected to the second clamp.

[0013] Furthermore, the first clamp is provided with a first arc-shaped opening for engaging with the shock absorber piston rod, and the second clamp is provided with a second arc-shaped opening for engaging with the shock absorber piston rod.

[0014] Furthermore, the first linear drive mechanism is a gas-liquid booster cylinder, and a piston rod of the gas-liquid booster cylinder is connected to the second clamp.

[0015] Furthermore, the first clamping mechanism includes a first clamping block fixedly disposed on the fixed seat, a second clamping block for cooperating with the first clamping block to clamp and position the air spring shock absorber, and a second linear drive mechanism for driving the second clamping block to approach or move away from the first clamping block, and the second linear drive mechanism is fixedly disposed on the fixed seat.

[0016] Furthermore, the first clamping block is provided with a positioning groove for cooperating and clamping the air spring shock absorber, and the second clamping block is a V-shaped block.

[0017] Furthermore, the slide mechanism includes a support fixedly mounted on the support seat, a slide rail arranged on the support, a slider slidably mounted on the slide rail, a slide fixedly connected to the slider, a threaded sleeve connected to the slide, a lead screw rotatably arranged on the support, and a second motor driving the lead screw to rotate, the second motor is fixedly mounted on the support, the threaded sleeve is screwed together with the lead screw, the locking tool is rotatably mounted on the slide, and the first motor is fixedly mounted on the slide.

[0018] Furthermore, the nut locking mechanism also includes a reducer transmission-connected to the first motor, a transmission shaft transmission-connected to the reducer, and a torque sensor arranged on the transmission shaft, and the transmission shaft is connected to the locking tooling.

[0019] Furthermore, the nut locking mechanism also includes a photoelectric sensor or a pressure sensor for detecting whether the nut on the locking tool is sleeved on the screw and a PLC controller electrically connected to the photoelectric sensor or the pressure sensor.

[0020] Compared with the prior art, the above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects:

[0021] The air spring shock absorber piston rod nut locking device in the embodiment of the utility model only needs to clamp and position the air spring shock absorber on the fixed seat through the first clamping mechanism, and clamp and position the shock absorber piston rod on the fixed seat through the second clamping mechanism, and then lock the nut to the screw at the end of the shock absorber piston rod through the nut locking mechanism, which can effectively prevent the screw from axially moving, tilting or rotating during the nut locking process, and can not only improve the working efficiency of the nut locking, but also improve the accuracy and consistency of the nut locking, thereby solving the problem that the prior art relies on manual locking of the nut to the end screw of the shock absorber piston rod, and the axial movement, tilting or rotation of the screw due to uneven force is prone to occur, resulting in low working efficiency of the nut locking and difficulty in controlling the accuracy and consistency of the nut locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of the air spring shock absorber piston rod nut locking device provided by the embodiment of the utility model;

[0024] Figure 2 Another three-dimensional structural schematic diagram of the air spring shock absorber piston rod nut locking device provided by the embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the front view of the air spring shock absorber piston rod nut locking device provided by an embodiment of the utility model;

[0026] Figure 4 A schematic cross-sectional view of a nut locking device for a piston rod of an air spring shock absorber provided in an embodiment of the utility model;

[0027] Figure 5 A three-dimensional structural schematic diagram of a nut locking mechanism provided in an embodiment of the utility model;

[0028] Figure 6 A schematic diagram of a three-dimensional structure in which a first clamping mechanism and a second clamping mechanism provided in an embodiment of the utility model are assembled on a fixing base.

[0029] Among them, the reference numerals in the figure are:

[0030] 1-support frame; 2-operating table; 3-fixed seat;

[0031] 4-first clamping mechanism; 41-first clamping block; 42-second clamping block; 43-second linear drive mechanism; 44-second guide column; 45-second sliding sleeve; 46-positioning groove;

[0032] 5-second clamping mechanism; 51-first clamp; 52-second clamp; 53-first linear drive mechanism; 54-first guide column; 55-first sliding sleeve; 56-first arc-shaped opening; 57-second arc-shaped opening;

[0033] 6-nut locking mechanism; 61-support seat; 62-slide mechanism; 621-support; 622-slide rail; 623-slider; 624-slide; 625-threaded sleeve; 626-screw; 627-second motor; 63-locking tool; 631-accommodating chamber; 64-first motor; 65-reducer; 66-transmission shaft; 67-torque sensor;

[0034] 7-air spring shock absorber; 8-air spring shock absorber; 9-screw. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] It should be noted that when an element is referred to as being "connected to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise clearly specified and specifically defined. In the description of the utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0038] Please also read Figures 1 to 6The air spring shock absorber piston rod nut locking device provided by the embodiment of the utility model is now described. The air spring shock absorber piston rod nut locking device provided by the embodiment of the utility model includes an operating table 2 supported on a support frame 1, a fixing seat 3 arranged on the table surface of the operating table 2, a first clamping mechanism 4 arranged in the middle or bottom of the fixing seat 3, a second clamping mechanism 5 arranged on the top of the fixing seat 3, and a nut locking mechanism 6 arranged on the table surface of the operating table 2 at a position corresponding to the fixing seat 3, the first clamping mechanism 4 is used to clamp and position the air spring shock absorber 7 on the fixing seat 3, the second clamping mechanism 5 is used to clamp and position the shock absorber piston rod 8, and the nut locking mechanism 6 is used to lock the nut to the screw 9 at the end of the shock absorber piston rod 8. Specifically, the nut locking mechanism 6 includes a support seat 61 fixedly arranged on the operating table 2, a slide mechanism 62 slidably arranged on the support seat 61 along the axial direction of the screw 9, a locking tool 63 rotatably arranged on the slide mechanism 62, and a first motor 64 driving the locking tool 63 to rotate, the first motor 64 is fixedly installed on the slide mechanism 62, and the motor shaft of the first motor 64 is transmission-connected with the locking tool 63. It should be noted that the locking tool 63 is provided with a receiving cavity 631 for receiving and positioning the nut, and the nut can be fixed in the receiving cavity 631 of the locking tool 63 by magnetic connection. During the nut locking process, it is only necessary to accommodate and position the nut in the accommodating cavity 631 of the locking tool 63, place the air spring shock absorber 7 in the locking position on the fixing seat 3, and the first clamping mechanism 4 can realize the clamping and positioning of the air spring shock absorber 7, and the second clamping mechanism 5 can realize the clamping and positioning of the shock absorber piston rod 8, so that the internal threaded hole of the nut and the screw 9 at the end of the shock absorber piston rod 8 have good concentricity. Then, the locking tool 63 is driven by the slide mechanism 62 to move down to the position where the nut is sleeved on the screw 9, the first motor 64 drives the locking tool 63 to drive the nut to rotate, and at the same time, the slide mechanism 62 drives the locking tool 63 to move down adaptively until the locking tool 63 tightens the nut and locks it on the screw 9 at the end of the shock absorber piston rod 8, the first motor 64 stops working, and the slide mechanism 62 drives the locking tool 63 to move up to the initial position, so that the nut and the screw 9 at the end of the shock absorber piston rod 8 can be locked.

[0039] Compared with the prior art, the air spring shock absorber piston rod nut locking device provided by the embodiment of the utility model only needs to clamp and position the air spring shock absorber 7 on the fixing seat 3 through the first clamping mechanism 4, and clamp and position the shock absorber piston rod 8 on the fixing seat 3 through the second clamping mechanism 5, and then lock the nut to the screw rod 9 at the end of the shock absorber piston rod 8 through the nut locking mechanism 6, which can effectively prevent the screw rod 9 from axial movement, tilting or rotation during the nut locking process, and can not only improve the working efficiency of the nut locking, but also improve the accuracy and consistency of the nut locking, thereby solving the problem that the nut is manually locked to the end screw rod 9 of the shock absorber piston rod 8 in the prior art, and the screw rod 9 is prone to axial movement, tilting or rotation due to uneven force, resulting in low working efficiency of the nut locking and difficulty in controlling the accuracy and consistency of the nut locking.

[0040] Please refer to Figure 1 , Figure 2 and Figure 6 In some embodiments, the second clamping mechanism 5 includes a first clamp 51 fixedly disposed on the fixed seat 3, a second clamp 52 for cooperating with the first clamp 51 to clamp and position the shock absorber piston rod 8, and a first linear drive mechanism 53 for driving the second clamp 52 to approach or move away from the first clamp 51, and the first linear drive mechanism 53 is fixedly disposed on the fixed seat 3. When the first linear drive mechanism 53 drives the second clamp 52 to approach the first clamp 51, the shock absorber piston rod 8 can be clamped and positioned by the first clamp 51 and the second clamp 52 to prevent the screw rod 9 from axial movement, tilting or rotation during the process of nut locking. After the nut and the screw rod 9 at the end of the shock absorber piston rod 8 are locked, the first linear drive mechanism 53 drives the second clamp 52 away from the first clamp 51, so that the shock absorber piston rod 8 can be loosened, and the air spring shock absorber 7 locked with the nut can be removed to prepare for the next nut locking work. It should be noted that the first linear drive mechanism 53 is a gas-liquid booster cylinder, the piston rod of which is connected to the second clamp 52. The gas-liquid booster cylinder drives the second clamp 52 to cooperate with the first clamp 51 to clamp the shock absorber piston rod 8, which is beneficial to enhance the stability of the clamping and positioning of the shock absorber piston rod 8.

[0041] Please refer to Figure 2 , Figure 3 and Figure 6In some embodiments, the second clamping mechanism 5 further includes a first guide column 54 for guiding the second clamp 52 to move along the radial direction of the screw 9 and a first sliding sleeve 55 slidably mounted on the first guide column 54, the first sliding sleeve 55 is connected to the fixed seat 3, and the first guide column 54 is connected to the second clamp 52. In the process of the first linear drive mechanism 53 driving the second clamp 52 to approach or move away from the first clamp 51, the second clamp 52 is guided to move along the radial direction of the screw 9 by the first guide column 54, so as to avoid the second clamp 52 from being offset during the movement and affecting the stability of the clamping and positioning of the shock absorber piston rod 8. It should be noted that the first guide column 54 can be set to more than two, and accordingly, each first guide column 54 is sleeved with a first sliding sleeve 55, and each first sliding sleeve 55 is connected to the fixed seat 3.

[0042] Please refer to Figure 2 and Figure 6 In some embodiments, the first clamp 51 is provided with a first arc-shaped opening 56 for engaging the shock absorber piston rod 8, and the second clamp 52 is provided with a second arc-shaped opening 57 for engaging the shock absorber piston rod 8. When the first linear drive mechanism 53 drives the second clamp 52 to cooperate with the first clamp 51 to clamp the shock absorber piston rod 8, the first arc-shaped opening 56 and the second arc-shaped opening 57 are used to engage the clamped shock absorber piston rod 8, which is beneficial to increase the contact area between the shock absorber piston rod 8 and the first clamp 51 and the second clamp 52. On the one hand, it is beneficial to enhance the stability of the clamping and positioning of the shock absorber piston rod 8, and on the other hand, it can avoid the first clamp 51 and the second clamp 52 from causing damage to the outer wall of the shock absorber piston rod 8. It should be noted that the curvature of the first arc-shaped opening 56 and the second arc-shaped opening 57 is adapted to the outer peripheral arm of the shock absorber piston rod 8.

[0043] Please refer to Figure 2 , Figure 4 and Figure 6In some embodiments, the first clamping mechanism 4 includes a first clamping block 41 fixedly disposed on the fixing seat 3, a second clamping block 42 for cooperating with the first clamping block 41 to clamp and position the air spring damper 7, and a second linear driving mechanism 43 for driving the second clamping block 42 to approach or move away from the first clamping block 41, and the second linear driving mechanism 43 is fixedly disposed on the fixing seat 3. When the second linear driving mechanism 43 drives the second clamping block 42 to approach the first clamping block 41, the air spring damper 7 can be clamped and positioned by the first clamping block 41 and the second clamping block 42, which is helpful to prevent the screw rod 9 from axial movement, tilting or rotation during the process of nut locking. After the nut and the screw rod 9 at the end of the damper piston rod 8 are locked, the second linear driving mechanism 43 drives the second clamping block 42 away from the first clamping block 41, so that the air spring damper 7 can be loosened, and the air spring damper 7 locked with the nut can be removed to prepare for the next nut locking work. It should be noted that the second linear drive mechanism 43 may be, but is not limited to, a cylinder, and a piston rod of the cylinder is connected to the second clamp 52 .

[0044] Please refer to Figure 1 , Figure 2 and Figure 6 In some embodiments, the first clamping mechanism 4 further includes a second guide column 44 for guiding the second clamping block 42 to move radially along the screw 9 and a second sleeve 45 slidably mounted on the second guide column 44, the second sleeve 45 is connected to the fixed seat 3, and the second guide column 44 is connected to the second clamping block 42. In the process of the second linear drive mechanism 43 driving the second clamping block 42 to approach or move away from the first clamping block 41, the second guide column 44 guides the second clamping block 42 to move radially along the screw 9, so as to avoid the second clamping block 42 from being offset during the movement and affecting the stability of the clamping and positioning of the shock absorber piston rod 8. It should be noted that the second guide column 44 can be set to more than two, and accordingly, each second guide column 44 is sleeved with a second sleeve 45, and each second sleeve 45 is connected to the fixed seat 3.

[0045] Please refer to Figure 1 , Figure 2 and Figure 6 In some embodiments, the first clamping block 41 is provided with a positioning groove 46 for cooperating with the air spring damper 7, and the second clamping block 42 is a V-shaped block, and the air spring damper 7 is supported in the arc-shaped positioning groove 46 by the V-shaped block, which is conducive to enhancing the stability of the positioning of the air spring damper 7. In addition, when the V-shaped block is against the air spring damper 7, the V-shaped groove of the V-shaped block contacts the outer wall of the air spring damper 7, which can reduce the contact area between the second clamping block 42 and the air spring damper 7, thereby avoiding damage to the air spring damper 7.

[0046] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments, the slide mechanism 62 includes a support 621 fixedly mounted on the support seat 61, a slide rail 622 arranged on the support 621, a slider 623 slidably mounted on the slide rail 622, a slide 624 fixedly connected to the slider 623, a threaded sleeve 625 connected to the slide 624, a screw 626 rotatably arranged on the support 621, and a second motor 627 driving the screw 626 to rotate, the second motor 627 is fixedly mounted on the support 621, the threaded sleeve 625 is screwed together with the screw 626, the locking tooling 63 is rotatably mounted on the slide 624, and the first motor 64 is fixedly mounted on the slide 624. The second motor 627 drives the lead screw 626 to rotate forward, and the threaded sleeve 625 and the lead screw 626 are screwed together to drive the slide 624 to move toward the screw 9. During this process, the slide 624 can drive the locking tool 63 to move to the screw 9 and lock the nut on the screw 9. It should be noted that the first motor 64 and the second motor 627 are both servo motors, and the rotation speed can be accurately controlled by the PLC controller.

[0047] Please refer to Figure 1 , Figure 4 and Figure 5 In some embodiments, the nut locking mechanism 6 further includes a reducer 65 connected to the first motor 64, a transmission shaft 66 connected to the reducer 65, and a torque sensor 67 disposed on the transmission shaft 66, and the transmission shaft 66 is connected to the locking fixture 63. In this embodiment, the speed is reduced and the torque is increased by the reducer 65, so that the locking fixture 63 can quickly lock the nut on the screw 9. The torque sensor 67 detects the torque when the locking fixture 63 locks the nut. When the torque sensor 67 detects that the torque exceeds the set torque range of the locking nut, the PLC controller controls the first motor 64 to stop working, thereby improving the accuracy and consistency of the nut locking.

[0048] It should be noted that, in some embodiments, the nut locking mechanism 6 also includes a photoelectric sensor or a pressure sensor for detecting whether the nut on the locking tooling 63 is sleeved on the screw 9 and a PLC controller electrically connected to the photoelectric sensor or the pressure sensor. When the photoelectric sensor or the pressure sensor detects that the nut on the locking tooling 63 is sleeved on the screw 9, the PLC controller controls the first motor 64, the second motor 627, the first linear drive mechanism 53 and the second linear drive mechanism 43 to perform corresponding actions to automatically complete the locking of the nut.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air spring shock absorber piston rod nut locking device, characterized in that: include: Operation table; A fixing seat, arranged on the table top of the operating table; A first clamping mechanism, used for clamping and positioning the air spring shock absorber on the fixing seat, wherein the first clamping mechanism is arranged at the middle or bottom of the fixing seat; a second clamping mechanism, used for clamping and positioning the shock absorber piston rod, wherein the second clamping mechanism is disposed on the top of the fixing seat; and A nut locking mechanism, used for locking the nut onto the screw at the end of the shock absorber piston rod; Among them, the nut locking mechanism includes a support base fixedly set on the operating table, a slide mechanism set on the support base and sliding along the axial direction of the screw, a locking tool rotatably set on the slide mechanism, and a first motor that drives the locking tool to rotate, the first motor is fixedly installed on the slide mechanism, and the motor shaft of the first motor is transmission connected to the locking tool.

2. The air spring shock absorber piston rod nut locking device according to claim 1, characterized in that: The second clamping mechanism includes a first clamp fixedly disposed on the fixed seat, a second clamp for cooperating with the first clamp to clamp and position the shock absorber piston rod, and a first linear drive mechanism for driving the second clamp to approach or move away from the first clamp. The first linear drive mechanism is fixedly disposed on the fixed seat.

3. The air spring shock absorber piston rod nut locking device according to claim 2, characterized in that: The second clamping mechanism also includes a first guide post for guiding the second clamp to move radially along the screw rod and a first sliding sleeve provided on the first guide post, the first sliding sleeve is connected to the fixing seat, and the first guide post is connected to the second clamp.

4. The air spring shock absorber piston rod nut locking device according to claim 2, characterized in that: The first clamp is provided with a first arc-shaped opening for engaging with the shock absorber piston rod, and the second clamp is provided with a second arc-shaped opening for engaging with the shock absorber piston rod.

5. The air spring shock absorber piston rod nut locking device according to claim 2, characterized in that: The first linear drive mechanism is a gas-liquid booster cylinder, and a piston rod of the gas-liquid booster cylinder is connected to the second clamp.

6. The air spring shock absorber piston rod nut locking device according to claim 1, characterized in that: The first clamping mechanism includes a first clamping block fixedly disposed on the fixed seat, a second clamping block for cooperating with the first clamping block to clamp and position the air spring shock absorber, and a second linear drive mechanism for driving the second clamping block to move closer to or away from the first clamping block, and the second linear drive mechanism is fixedly disposed on the fixed seat.

7. The air spring damper piston rod nut locking device according to claim 6, characterized in that: The first clamping block is provided with a positioning groove for cooperating with and clamping the air spring shock absorber, and the second clamping block is a V-shaped block.

8. The air spring shock absorber piston rod nut locking device according to claim 1, characterized in that: The slide mechanism includes a support fixedly mounted on the support seat, a slide rail arranged on the support, a slider slidably mounted on the slide rail, a slide fixedly connected to the slider, a threaded sleeve connected to the slide, a lead screw rotatably arranged on the support, and a second motor driving the lead screw to rotate, the second motor is fixedly mounted on the support, the threaded sleeve is screwed together with the lead screw, the locking tool is rotatably mounted on the slide, and the first motor is fixedly mounted on the slide.

9. The air spring shock absorber piston rod nut locking device according to claim 1, characterized in that: The nut locking mechanism also includes a reducer drivingly connected to the first motor, a transmission shaft drivingly connected to the reducer, and a torque sensor arranged on the transmission shaft, and the transmission shaft is connected to the locking tooling.

10. The air spring shock absorber piston rod nut locking device according to any one of claims 1 to 9, characterized in that: The nut locking mechanism also includes a photoelectric sensor or a pressure sensor for detecting whether the nut on the locking tool is sleeved on the screw rod and a PLC controller electrically connected to the photoelectric sensor or the pressure sensor.

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