Piston rod supporting assembly and tool for detecting assembly angle of outer connecting sleeve of shock absorber

Abstract

The utility model belongs to the technical field of automobile shock absorbers, and particularly relates to a piston rod supporting assembly and a tool for detecting the assembly angle of an outer connecting sleeve of a shock absorber, and the piston rod supporting assembly comprises a piston rod supporting plate and a piston rod supporting column. A lifting guide rail and a datum plate are arranged on the piston rod supporting plate, a guide hole is formed in the datum plate, and an adjusting bolt rotationally matched with the guide hole is arranged in the guide hole; one end of the piston rod support is slidably connected to the lifting guide rail, and the other end is provided with a V-shaped supporting groove; the piston rod supporting column is provided with a threaded through hole, and the adjusting bolt is connected into the threaded through hole in a threaded mode. A compression elastic piece is arranged between the datum plate and the piston rod supporting column, the upper end of the compression elastic piece abuts against the datum plate, and the lower end of the compression elastic piece presses the piston rod supporting column downwards to enable the bolt head of the adjusting bolt to abut against the datum plate downwards. The height positions of the piston rod supporting column and the V-shaped supporting groove can be conveniently and rapidly adjusted by rotating the adjusting bolt, the switching efficiency of the tool supporting height is improved, and the detection cost is saved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive shock absorber technology, specifically relating to a piston rod support assembly and tooling for angle detection in an external connection kit for a shock absorber. Background Technology

[0002] The outer connecting sleeve assembly is a crucial component of the automotive shock absorber assembly. During the assembly of the shock absorber assembly, the angular assembly accuracy of the outer connecting sleeve assembly is paramount. If the assembly angle of the outer connecting sleeve assembly on the shock absorber does not meet the requirements, it will lead to difficulties in installing the shock absorber during the vehicle assembly process, or even make installation impossible. Therefore, after the shock absorber assembly is completed, the installation angle of the outer connecting sleeve assembly must be checked to ensure its assembly accuracy, thereby ensuring the assembly accuracy and smoothness of the shock absorber during the overall vehicle assembly process.

[0003] Currently, the detection device for the installation angle of the outer connecting sleeve on the shock absorber assembly structure adopts a measuring tool for detecting the angle of the outer connecting sleeve component of a shock absorber assembly, as described in Chinese invention patent publication number CN119103955A. This tool includes a base plate, a bracket opening detection component, a reservoir height detection plate, and an outer connecting sleeve detection component. The base plate is provided with a guide rail, and at both ends of the guide rail are a first slider and a second slider that slide in cooperation with it. The bracket opening detection component includes a positioning block and an opening positioning mounting plate. The opening positioning mounting plate is mounted on the first slider, and the positioning block is located on the upper end of the opening positioning mounting plate near the reservoir height detection plate. The reservoir height detection plate is mounted on the guide rail and... Located between the second and first sliders, the upper end of the liquid reservoir height detection plate has a first V-shaped groove, and a friction element is provided within the first V-shaped groove. The external connecting sleeve detection assembly includes a piston rod screw support column, a piston rod screw support plate, and an external connecting sleeve bolt angle detection plate mounted on the second slider. The piston rod screw support plate is detachably mounted on the end of the base plate with the second slider. One end of the piston rod screw support column is fixedly mounted on the upper end of the piston rod screw support plate, and a second V-shaped groove is provided above the other end. The center of the external connecting sleeve bolt angle detection plate has a through hole and three second light holes around the through hole. One end of the piston rod screw support column can pass through the through hole. During the detection operation, the liquid reservoir of the shock absorber assembly is placed in the first V-shaped groove of the liquid reservoir height detection plate, the piston rod screw head of the shock absorber assembly is engaged in the second V-shaped groove on the piston rod screw support column, and the bracket opening of the shock absorber assembly is secured by a positioning block. The outer connecting sleeve assembly is located in the center of the outer connecting sleeve bolt angle detection plate, with a through hole. The outer connecting sleeve assembly does not directly contact the detection tool, allowing it to rotate in the air. If the installation angle of the outer connecting sleeve is found to be unqualified during the inspection, it can be adjusted in real time, improving work efficiency.

[0004] The positioning block, reservoir height measuring plate, and piston rod screw support column in the aforementioned external connecting sleeve assembly angle measuring tool have adjustable spacing along the guide rail length. This allows the tool to be used to measure the installation angle of external connecting sleeve assemblies on shock absorber assemblies of different lengths. However, when multiple shock absorber assemblies have different detection positioning heights, it is necessary to manufacture and replace opening positioning mounting plates, reservoir height measuring plates, external connecting sleeve bolt angle measuring plates, and piston rod screw support plates of different heights. Furthermore, the piston rod screw support column must be reinstalled, resulting in long replacement times, low detection efficiency, and high production costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a piston rod support assembly and tooling for angle detection of the external connection kit of the shock absorber, which can quickly complete the height position adjustment of the piston rod support column, realize the rapid adjustment of the support height of the entire shock absorber assembly structure of the tooling, save manpower and improve detection efficiency.

[0006] The technical solution adopted by this utility model to solve the technical problem is: a piston rod support assembly for angle detection of an external connection set of a shock absorber, including a piston rod support plate and a piston rod support column vertically installed on the piston rod support plate;

[0007] The piston rod support plate is provided with a lifting guide rail and a reference plate located above the lifting guide rail. The reference plate is provided with a guide hole that runs vertically through it. An adjusting bolt is provided in the guide hole and rotates with it on the same axis. The bolt head of the adjusting bolt is located above the reference plate.

[0008] One end of the piston rod support column near the piston rod support plate is connected to the lifting guide rail and slides with the lifting guide rail. The other end of the piston rod support column is provided with an upward-opening V-shaped support groove. The piston rod support column is also provided with a threaded through hole, and the screw of the adjusting bolt is threadedly connected to the threaded through hole.

[0009] A compression elastic element is provided between the reference plate and the piston rod support column. The upper end of the compression elastic element abuts against the reference plate, and the lower end of the compression elastic element presses down on the piston rod support column so that the bolt head of the adjusting bolt abuts against the reference plate.

[0010] Furthermore, the lifting guide rail is a strip-shaped guide groove with its length arranged in the vertical direction; the piston rod support column includes a guide connecting section, which is located at the end away from the V-shaped support groove; the guide connecting section is located in the strip-shaped guide groove and the two slide together vertically.

[0011] Furthermore, the guide connecting section has two parallel guide planes on its sidewall that are perpendicular to the horizontal plane; the two guide planes are respectively attached to the guide surfaces on the strip guide grooves on their outer sides.

[0012] Furthermore, the strip-shaped guide groove extends axially through the piston rod support plate along the piston rod support column; a limiting plate is fixedly provided at one end of the guide connecting section away from the V-shaped support groove, and the limiting plate is located on the side of the piston rod support plate away from the V-shaped support groove;

[0013] The upper part of the limiting plate is located on the upper side of the strip guide groove and is in contact with the side wall of the piston rod support plate, and the lower part of the limiting plate is located on the lower side of the strip guide groove and is in contact with the piston rod support plate.

[0014] Furthermore, the limiting plate is provided with a positioning through hole that extends axially along the piston rod support column, and the guide connecting section is inserted into the positioning through hole; the cross-section of the positioning through hole has the same shape and size as the cross-section of the guide connecting section.

[0015] The guide connecting section has a fastening threaded hole on its end face away from the V-shaped support groove. A fastening bolt is threaded into the fastening threaded hole. A limiting washer is provided between the bolt head of the fastening bolt and the limiting plate. The two end faces of the limiting washer abut against the bolt head of the fastening bolt and the limiting plate, respectively.

[0016] Furthermore, the piston rod support column is provided with an axial limiting part that protrudes radially from its outer side wall. The axial limiting part is located on the side of the piston rod support plate near the V-shaped support groove, and the axial limiting part and the piston rod support plate abut against each other along the axial direction of the piston rod support column.

[0017] Furthermore, the piston rod support plate located above the strip guide groove is the reference plate, and the guide hole communicates with the strip guide groove.

[0018] Furthermore, a fastening washer is fitted on the outside of the adjusting bolt's screw, and the fastening washer is located between the bolt head of the adjusting bolt and the reference plate and fits tightly with both.

[0019] Furthermore, the compression elastic element is a compression spring sleeved on the outside of the adjusting bolt.

[0020] A fixture for detecting the angle of an external connecting sleeve of a vibration damper includes a base plate, a bracket opening detection assembly, a liquid reservoir height detection plate, and an external connecting sleeve detection assembly. The top surface of the base plate is provided with a horizontal guide rail, and both ends of the horizontal guide rail are provided with a first slider and a second slider that slide in cooperation with it. The external connecting sleeve detection assembly includes an external connecting sleeve bolt angle detection plate mounted on the second slider. The external connecting sleeve bolt angle detection plate has a through hole at its center and multiple second light holes around the through hole. The external connecting sleeve detection assembly also includes the piston rod support assembly.

[0021] The piston rod support plate on the piston rod support assembly is mounted on the base plate and located on the side of the second slider away from the first slider; one end of the piston rod support column with a V-shaped support groove passes through the through hole in the outer connecting sleeve bolt angle detection plate.

[0022] Compared with the prior art, the beneficial effects of this utility model are: it provides a piston rod support assembly and tooling for angle detection of the external connecting sleeve of a shock absorber. Using the piston rod support assembly described in this utility model, the piston rod support column can be driven to slide up and down along the lifting guide rail by rotating the adjusting bolt, thereby changing the height position of the piston rod support column and its V-shaped support groove. This conveniently and quickly achieves the adjustment of the height position of the piston rod support column and its V-shaped support groove, enabling support and positioning of the piston rod on the shock absorber assembly structure with different support height requirements. It eliminates the need to replace the piston rod support plate and reinstall the piston rod support column, reducing labor intensity and improving the efficiency of tooling support height switching and angle detection of the external connecting sleeve of the shock absorber assembly structure; it also eliminates the need to manufacture multiple piston rod support plates of different specifications, saving detection costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the piston rod support assembly from the left.

[0024] Figure 2 It is along Figure 1 A schematic diagram of the cross-sectional structure along the AA direction of the mid-section line of sight;

[0025] Figure 3 This is a front view schematic diagram of one embodiment of the piston rod support plate.

[0026] Figure 4 It is along Figure 3 Schematic diagram of the cross-sectional structure along the BB direction of the mid-section;

[0027] Figure 5 This is a left-side structural schematic diagram of an embodiment of the piston rod support column;

[0028] Figure 6 It is along Figure 5A schematic diagram of the limiting plate in the CC direction of the mid-section;

[0029] Figure 7 yes Figure 5 Right view structural schematic diagram of the piston rod support column;

[0030] Figure 8 This is a front view structural diagram of one embodiment of the limiting plate;

[0031] Figure 9 It is along Figure 8 Schematic diagram of the cross-sectional structure along the DD direction of the mid-section line of sight;

[0032] Figure 10 This is a structural diagram of the tooling used for angle detection of the external connection kit of the vibration damper;

[0033] Reference numerals: 1-Base plate; 2-Bracket opening detection assembly; 21-Opening positioning mounting plate; 22-Positioning block; 3-Liquid storage cylinder height detection plate; 4-Outer connecting sleeve detection assembly; 41-Outer connecting sleeve bolt angle detection plate; 411-Through hole; 412-Second light hole; 42-Piston rod support plate; 421-Lifting guide rail; 422-Base plate; 423-Guide hole; 43-Piston rod support column; 431-V-shaped support groove; 432-Threaded through hole; 433-Guide connecting section; 434-Guide plane; 435-Fasting threaded hole; 436-Axial limiting part; 5-Horizontal guide rail; 51-First slider; 52-Second slider; 6-Adjusting bolt; 61-Fasting washer; 7-Compression elastic element; 8-Limiting plate; 81-Positioning through hole; 82-Fasting bolt; 83-Limiting washer. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] As attached Figure 1-10As shown, an external connection assembly for a shock absorber with a piston rod support for angle detection includes a piston rod support plate 42 and a piston rod support column 43 vertically mounted on the piston rod support plate 42. The piston rod support plate 42 has a lifting guide rail 421 and a reference plate 422 located above the lifting guide rail 421. The reference plate 422 has a vertically penetrating guide hole 423, and an adjusting bolt 6 coaxially rotatably engages with the guide hole 423. The bolt head of the adjusting bolt 6 is located above the reference plate 422. One end of the piston rod support column 43 near the piston rod support plate 42 is connected to the... The piston rod support column 43 has a V-shaped support groove 431 with an upward opening at one end, and a threaded through hole 432 on the piston rod support column 43, into which the screw of the adjusting bolt 6 is threadedly connected. A compression elastic element 7 is provided between the reference plate 422 and the piston rod support column 43. The upper end of the compression elastic element 7 abuts against the reference plate 422, and the lower end of the compression elastic element 7 presses down on the piston rod support column 43, causing the bolt head of the adjusting bolt 6 to abut against the reference plate 422. The piston rod support plate 42 is perpendicular to the horizontal plane, the length direction of the lifting guide rail 421 is arranged in the vertical direction, and the height position of the reference plate 422 is higher than the height position of the top surface of the lifting guide rail 421.

[0036] The piston rod support assembly of this utility model is applied to the angle measuring tool of the outer connecting sleeve assembly of the shock absorber assembly as described in application number 202411107319.4, replacing the piston rod screw support column and piston rod screw support plate on the angle measuring tool to support the piston rod of the shock absorber assembly structure. In this utility model, the lower end of the piston rod support plate 42 is fixedly installed on the base of the angle measuring tool and is located on the side of the second slider away from the first slider. The piston rod support column 43 of this utility model has a V-shaped support groove 431, one end of which faces the side close to the first slider on the angle measuring tool and passes through a through hole opened in the center of the angle measuring plate of the outer connecting sleeve bolt on the angle measuring tool. When the angle of the outer connecting sleeve of the shock absorber assembly structure is detected, the piston rod on the shock absorber assembly structure is located in the V-shaped support groove 431, which supports the piston rod and limits its position in the horizontal radial direction.

[0037] The elastic compression member 7 continuously presses down on the piston rod support column 43, ensuring that the nut of the adjusting bolt 6 always abuts against the reference plate 422, thus guaranteeing that the height of the adjusting bolt 6 remains constant. When the required support height of the piston rod in the shock absorber assembly changes, rotating the adjusting bolt 6 drives the piston rod support column 43 to slide up and down along the length of the lifting guide rail 421, thereby changing the height position of the piston rod support column 43 and its V-shaped support groove 431, achieving support and positioning of the piston rod in the shock absorber assembly structure with different support height requirements. During the rotation of the adjusting bolt 6 relative to the piston rod support column 43, the depth to which the adjusting bolt 6 is screwed into the piston rod support column 43 changes synchronously with the rise and fall of the piston rod support column 43. The piston rod support assembly described in this utility model conveniently and quickly adjusts the height of the piston rod support column 43 and its V-shaped support groove 431, eliminating the need to replace the piston rod support plate 42 and reinstall the piston rod support column 43, reducing labor intensity, improving the switching efficiency of tooling support height and the angle detection efficiency of the outer connecting sleeve of the shock absorber assembly structure; it also eliminates the need to manufacture multiple piston rod support plates 42 of different specifications, saving detection costs.

[0038] The lower end of the piston rod support plate 42 is generally provided with a horizontally extending adapter plate, and the piston rod support plate 42 is connected to the base plate of the angle measuring instrument through the adapter plate. The lifting guide rail 421 is used to position the piston rod support column 43 in the horizontal direction and to guide the lifting motion, so that the piston rod support column 43 can only move linearly back and forth in the vertical direction. When the lifting guide rail 421 is a groove structure, the piston rod support column 43 is provided with a slider located in the groove structure and whose shape and size are adapted to it; when the lifting guide rail 421 is a solid convex structure, the piston rod support column 43 is provided with a groove structure whose shape and size are adapted to the solid convex structure, and the convex structure is located in the groove structure of the piston rod support column 43 and slides axially with it. Preferably, the lifting guide rail 421 is a strip-shaped guide groove with its length arranged in the vertical direction; the piston rod support column 43 includes a guide connecting section 433, which is located at the end away from the V-shaped support groove 431; the guide connecting section 433 is located in the strip-shaped guide groove and the two slide vertically together. The lifting guide rail 421 with the strip-shaped guide groove structure has a simple structure, is easy to process and manufacture, and does not require assembly. As a further preferred embodiment, the side wall of the guide connecting section 433 is provided with two parallel guide planes 434 that are perpendicular to the horizontal plane; the two guide planes 434 are respectively attached to the guide surfaces on the outer side of the strip-shaped guide groove. The guide surfaces on the strip-shaped guide groove are the side walls of the strip-shaped guide groove with a planar structure that are perpendicular to the horizontal plane. The two guide surfaces cooperate to position the guide connecting section 433 in the horizontal radial direction, ensuring the direction of the lifting movement of the piston rod support column 43. At the same time, it also prevents the piston rod support column 43 from deflecting when the adjusting bolt 6 is rotated, ensuring the relative rotation of the piston rod support column 43 and the adjusting bolt 6.

[0039] The strip guide groove can extend through the piston rod support plate 42 along the axial direction of the piston rod support column 43, or it can not extend through the piston rod support plate 42. The end face of the guide connecting section 433 away from the V-shaped support groove 431 generally has a small gap with the bottom of the strip guide groove. Under the action of gravity of the end of the piston rod support column 43 near the V-shaped support groove 431 and the driving action of the adjusting bolt 6, the piston rod support column 43 is prone to swing up and down around the end away from the V-shaped support groove 431. This eventually causes the piston rod support column 43 to be non-parallel to the horizontal plane, affecting the setting accuracy of the V-shaped support groove 431, and thus affecting the support and positioning accuracy of the piston rod in the shock absorber assembly structure. Preferably, the strip-shaped guide groove extends axially through the piston rod support plate 42 along the piston rod support column 43; a limiting plate 8 is fixedly provided at the end of the guide connecting section 433 away from the V-shaped support groove 431, and the limiting plate 8 is located on the side of the piston rod support plate 42 away from the V-shaped support groove 431; the upper part of the limiting plate 8 is located on the upper side of the strip-shaped guide groove and is in contact with the side wall of the piston rod support plate 42, and the lower part of the limiting plate 8 is located on the lower side of the strip-shaped guide groove and is in contact with the piston rod support plate 42. The piston rod support plate 42 structure located on the upper and lower sides of the strip-shaped guide groove cooperates with the limiting plate 8 to prevent the piston rod support column 43 from swinging up and down around the end away from the V-shaped support groove 431, further limiting the piston rod support column 43 while ensuring its parallelism with the relative horizontal plane, and improving the support and positioning accuracy of the piston rod on the shock absorber assembly structure. The guide connecting section 433 and the limiting plate 8 can be welded together or fixed together by bolts.

[0040] When the adjusting bolt 6 drives the piston rod support column 43 to slide up and down in the strip guide groove, the piston rod support column 43 drives the limiting plate 8 to move up and down synchronously. The limiting plate 8 will rub against the piston rod support plate 42, which not only increases the movement resistance of the piston rod support column 43 and the rotation resistance of the adjusting bolt 6, but also causes wear on the limiting plate 8 and the piston rod support plate 42, affecting the installation accuracy of the piston rod support column 43. As a further preferred embodiment, the limiting plate 8 is provided with a positioning through hole 81 extending axially along the piston rod support column 43, and the guide connecting section 433 is inserted into the positioning through hole 81; the cross-section of the positioning through hole 81 has the same shape and size as the cross-section of the guide connecting section 433; the end face of the guide connecting section 433 away from the V-shaped support groove 431 is provided with a fastening threaded hole 435, and a fastening bolt 82 is threaded into the fastening threaded hole 435; a limiting washer 83 is provided between the bolt head of the fastening bolt 82 and the limiting plate 8, and the two end faces of the limiting washer 83 abut against the bolt head of the fastening bolt 82 and the limiting plate 8, respectively. The guide connecting section 433 and the hole wall of the positioning through hole 81 fit tightly together, preventing the piston rod support column 43 from rotating relative to the limiting plate 8. Before adjusting the height of the piston rod support column 43, first turn the outer tightening bolt 82 to disengage the limiting plate 8 from the piston rod support plate 42. Then, drive the piston rod support column 43 to move up and down by rotating the drive adjusting bolt 6. After the height of the piston rod support column 43 is adjusted, turn the inner tightening bolt 82 so that the bolt head and the limiting washer 83 press the limiting plate 8 tightly against the piston rod support plate 42.

[0041] When installing the piston rod support column 43, the axial position of the piston rod support column 43 needs to be constantly adjusted to ensure that the threaded through hole 432 and the adjusting bolt 6 are coaxially aligned. This manual installation is labor-intensive and inefficient. Preferably, the piston rod support column 43 is provided with an axial limiting part 436 that protrudes radially from its outer side wall. The axial limiting part 436 is located on the side of the piston rod support plate 42 near the V-shaped support groove 431, and the axial limiting part 436 and the piston rod support plate 42 abut against each other along the axial direction of the piston rod support column 43. During the installation of the piston rod support column 43, after the guide connecting section 433 is inserted into the strip guide groove and the axial limiting part 436 abuts against the piston rod support plate 42, the adjusting bolt 6 is perfectly aligned vertically and vertically with the threaded through hole 432. The adjusting bolt 6 can then be directly screwed into the threaded through hole 432, conveniently and quickly achieving the axial positioning of the piston rod support column 43 and improving assembly efficiency. The axial limiting part 436 can be a plurality of protrusions evenly distributed around the piston rod support column 43, or it can be a ring plate structure. Preferably, the axial limiting part 436 is a ring plate structure, which is simple in structure and easy to process. The axial limiting part 436 and the piston rod support column 43 can be connected by welding, bolting or other means, or it can be an integrally formed structure.

[0042] The reference plate 422 is used to install and support the adjusting bolt 6 upwards. Its upper end face abuts against the adjusting bolt 6, positioning the adjusting bolt 6 at its upper limit in the vertical direction. The reference plate 422 can protrude horizontally from the side wall of the piston rod support plate 42, or it can be located directly above the piston rod support plate 42. The guide hole 423 on the reference plate 422 is used to position the adjusting bolt 6 horizontally. The screw of the adjusting bolt 6 can be directly clearance-fitted with the guide hole 423 to achieve a rotational fit, or a rolling bearing can be provided between them to achieve a rotational fit. Preferably, the structure of the piston rod support plate 42 located above the strip-shaped guide groove is the reference plate 422, and the guide hole 423 is connected to the strip-shaped guide groove. The structure is simple and easy to process.

[0043] Preferably, a fastening washer 61 is fitted on the outer side of the adjusting bolt 6. The fastening washer 61 is located between the bolt head of the adjusting bolt 6 and the reference plate 422 and fits tightly with both, ensuring a tight fit between the adjusting bolt 6 and the reference plate 422. The fastening washer 61 is generally a flat washer.

[0044] In this application of the utility model, the compression elastic element 7 is always in a compressed state. The reference plate 422 positions the upper end of the compression elastic element 7 in the vertical direction, so that the lower end of the compression elastic element 7 always pushes down the piston rod support column 43. In turn, the piston rod support column 43 pulls down the adjusting bolt 6, so that the bolt head of the adjusting bolt 6 is always locked above the reference plate 422. This ensures that the height position of the adjusting bolt 6 remains unchanged, while also ensuring the adjustment accuracy of the piston rod support column 43. The compression elastic element 7 can be a rubber sleeve or rubber block structure made of elastic rubber materials such as natural rubber, nitrile rubber, and polyurethane rubber, or it can be a steel compression spring. Considering that rubber structures are easily worn and need to be manufactured by oneself, resulting in high costs, it is preferable that the compression elastic element 7 is a compression spring sleeved on the outside of the adjusting bolt 6. The spring is a steel structure, which not only has good wear resistance but is also easy to purchase and has low cost. In addition, the screw of the adjusting bolt 6 is used to guide the extension and contraction movement of the spring, ensuring the direction of the spring compression movement and preventing the spring from being damaged by plastic deformation during compression.

[0045] A fixture for detecting the angle of an external connecting sleeve of a vibration damper includes a base plate 1, a bracket opening detection assembly 2, a liquid reservoir height detection plate 3, and an external connecting sleeve detection assembly 4. The top surface of the base plate 1 is provided with a horizontal guide rail 5, and both ends of the horizontal guide rail 5 are provided with a first slider 51 and a second slider 52 that slide with it. The external connecting sleeve detection assembly 4 includes an external connecting sleeve bolt angle detection plate 41 mounted on the second slider 52. The external connecting sleeve bolt angle detection plate 41 has a through hole 411 at its center and a plurality of second light holes 412 around the through hole 411. The fixture is characterized in that: the external connecting sleeve detection assembly 4 further includes any one of the aforementioned piston rod support assemblies; the piston rod support plate 42 on the piston rod support assembly is mounted on the base plate 1 and located on the side of the second slider 52 away from the first slider 51; one end of the piston rod support column 43 with a V-shaped support groove 431 passes through the through hole 411 on the external connecting sleeve bolt angle detection plate 41.

[0046] The base plate 1, bracket opening detection component 2, liquid storage cylinder height detection plate 3, outer connecting sleeve bolt angle detection plate 41, horizontal guide rail 5, first slider 51, and second slider 52 in this utility model can all adopt the corresponding structure and arrangement in the patent application document with application number 202411107319.4. Specifically, the bracket opening detection component 2 includes an opening positioning mounting plate 21 installed on the first slider 51 and a positioning block 22 on the opening positioning mounting plate 21, with the positioning block 22 protruding towards the side closer to the second slider 52; the liquid storage cylinder height detection plate 3 is detachably installed on the horizontal guide rail 5 and located between the first slider 51 and the second slider 51, with a first V-shaped groove opened at the upper end of the liquid storage cylinder height detection plate 3, and a friction element provided in the first V-shaped groove. When the external connecting sleeve of the shock absorber assembly is being fitted with an angle test, the reservoir of the shock absorber assembly is placed in the first V-shaped groove of the reservoir height detection plate 3, the piston rod screw head of the shock absorber assembly is engaged in the V-shaped support groove 431 on the piston rod support column 43, and the bracket opening of the shock absorber assembly is secured by the positioning block 22. A through hole 411 is provided in the center of the external connecting sleeve bolt angle detection plate 41.

[0047] When the required support height of the shock absorber assembly changes, the height of the piston rod support column 43 on the piston rod support assembly can be adjusted by rotating the adjusting bolt 6. Subsequently, it is only necessary to replace the liquid reservoir height detection plate 3, the opening positioning mounting plate 21 and the outer connecting sleeve bolt angle detection plate 41 that meet the height requirements, which saves time, effort and cost.

[0048] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

[0049] In the description of this utility model, the terms "upper," "lower," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure. They are only for the convenience of describing this utility model 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. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

Claims

1. A piston rod support assembly for angle detection in an external connection kit for a shock absorber, comprising a piston rod support plate (42) and a piston rod support column (43) vertically mounted on the piston rod support plate (42), characterized in that: The piston rod support plate (42) is provided with a lifting guide rail (421) and a reference plate (422) located above the lifting guide rail (421). The reference plate (422) is provided with a guide hole (423) that runs vertically through it. An adjusting bolt (6) is provided in the guide hole (423) and rotates with it on the same axis. The bolt head of the adjusting bolt (6) is located above the reference plate (422). One end of the piston rod support column (43) near the piston rod support plate (42) is connected to the lifting guide rail (421) and slides with the lifting guide rail (421) in a lifting and sliding fit. The other end of the piston rod support column (43) is provided with an upward-opening V-shaped support groove (431). The piston rod support column (43) is also provided with a threaded through hole (432), and the screw of the adjusting bolt (6) is threadedly connected to the threaded through hole (432). A compression elastic element (7) is provided between the reference plate (422) and the piston rod support column (43). The upper end of the compression elastic element (7) abuts against the reference plate (422) upwards, and the lower end of the compression elastic element (7) presses down on the piston rod support column (43) so that the bolt head of the adjusting bolt (6) abuts against the reference plate (422) downwards.

2. The piston rod support assembly for angle detection in the external connection set of the shock absorber according to claim 1, characterized in that: The lifting guide rail (421) is a strip-shaped guide groove with its length arranged in the vertical direction; the piston rod support column (43) includes a guide connecting section (433), which is located at one end away from the V-shaped support groove (431); the guide connecting section (433) is located in the strip-shaped guide groove and the two slide together vertically.

3. The piston rod support assembly for angle detection in the external connection kit of the shock absorber according to claim 2, characterized in that: The guide connecting section (433) has two parallel guide planes (434) on its side wall that are perpendicular to the horizontal plane; the two guide planes (434) are respectively attached to the guide surfaces on the strip guide grooves on their outer sides.

4. The piston rod support assembly for angle detection in the external connection kit of the shock absorber according to claim 3, characterized in that: The strip-shaped guide groove extends axially through the piston rod support plate (42) along the piston rod support column (43); a limiting plate (8) is fixedly provided at one end of the guide connecting section (433) away from the V-shaped support groove (431), and the limiting plate (8) is provided on the side of the piston rod support plate (42) away from the V-shaped support groove (431); The upper part of the limiting plate (8) is located on the upper side of the strip guide groove and is in contact with the side wall of the piston rod support plate (42), and the lower part of the limiting plate (8) is located on the lower side of the strip guide groove and is in contact with the piston rod support plate (42).

5. The piston rod support assembly for angle detection in the external connection kit of the shock absorber according to claim 4, characterized in that: The limiting plate (8) is provided with a positioning through hole (81) that extends through the piston rod support column (43) axially, and the guide connecting section (433) is inserted into the positioning through hole (81); the cross-section of the positioning through hole (81) is the same as the cross-section of the guide connecting section (433) and the size is compatible. The guide connecting section (433) has a fastening threaded hole (435) on its end face away from the V-shaped support groove (431). A fastening bolt (82) is threaded into the fastening threaded hole (435). A limiting washer (83) is provided between the bolt head of the fastening bolt (82) and the limiting plate (8). The two end faces of the limiting washer (83) abut against the bolt head of the fastening bolt (82) and the limiting plate (8), respectively.

6. The piston rod support assembly for angle detection in the external connection kit of the shock absorber according to claim 4, characterized in that: The piston rod support column (43) is provided with an axial limiting part (436) that protrudes radially from its outer side wall. The axial limiting part (436) is located on the side of the piston rod support plate (42) near the V-shaped support groove (431), and the axial limiting part (436) and the piston rod support plate (42) abut against each other along the axial direction of the piston rod support column (43).

7. The piston rod support assembly for angle detection in the external connection kit of the shock absorber according to claim 4, characterized in that: The piston rod support plate (42) located above the strip guide groove is the reference plate (422), and the guide hole (423) is in communication with the strip guide groove.

8. The piston rod support assembly for angle detection in the external connection set of the shock absorber according to claim 1, characterized in that: A fastening washer (61) is sleeved on the outside of the screw of the adjusting bolt (6). The fastening washer (61) is located between the bolt head of the adjusting bolt (6) and the reference plate (422) and fits tightly with both.

9. The piston rod support assembly for angle detection in the external connection set of the shock absorber according to claim 1, characterized in that: The compression elastic element (7) is a compression spring sleeved on the outside of the adjusting bolt (6).

10. A fixture for detecting the angle of an external connecting sleeve of a vibration damper, comprising a base plate (1), a bracket opening detection assembly (2), a liquid reservoir height detection plate (3), and an external connecting sleeve detection assembly (4); the top surface of the base plate (1) is provided with a horizontal guide rail (5), and the two ends of the horizontal guide rail (5) are provided with a first slider (51) and a second slider (52) that slide with it; the external connecting sleeve detection assembly (4) includes an external connecting sleeve bolt angle detection plate (41) mounted on the second slider (52), the center of the external connecting sleeve bolt angle detection plate (41) is provided with a through hole (411) and a plurality of second light holes (412) are opened around the through hole (411); characterized in that: The external connecting sleeve detection assembly (4) further includes the piston rod support assembly as described in any one of claims 1-9; The piston rod support plate (42) on the piston rod support assembly is mounted on the base plate (1) and located on the side of the second slider (52) away from the first slider (51); the piston rod support column (43) has a V-shaped support groove (431) at one end that passes through the through hole (411) on the outer connecting sleeve bolt angle detection plate (41).

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