Motorcycle shock absorber stroke laser scanning calibration tool

Abstract

The application provides a motorcycle shock absorber stroke laser scanning calibration tool, and belongs to the technical field of motorcycle manufacturing. The tool comprises a chassis component, a rotating frame assembly, a rotating plug assembly and an elastic ball holder component. The top end of the chassis component is provided with a fixed ring that can rotate within a range of 90 degrees. When the fixed ring rotates, the meshing formed by the transmission gear and the fixed gear can drive the central gear to rotate. The central gear is meshed with the planetary gear and the straight-toothed internal gear, so that different station states of the central frame can be formed. The sliding cut fit formed by the ball seat at the bottom of the slide column and the end face cam is used in cooperation with the use of the elastic ball holder component. The tool can not only complete the clamping work of the motorcycle shock absorber, but also can rotate the clamped motorcycle shock absorber to the vertical position. In cooperation with the use of the force applying assembly, the safety clamping column component, the laser scanning probe and the laser displacement module, the force applying and calibration work of the motorcycle shock absorber within the stroke range can be completed.

Description

Technical Field

[0001] This invention relates to the field of motorcycle manufacturing technology, and in particular to a laser scanning calibration fixture for motorcycle shock absorber stroke. Background Technology

[0002] Shock absorbers are the core component of a motorcycle's suspension system. Their main function is to cushion road impacts, absorb vibration energy, and maintain good wheel-to-ground contact, thereby improving driving stability, handling, and ride comfort. The performance of shock absorbers directly affects the motorcycle's safety and riding experience; therefore, precise calibration of their travel, damping characteristics, and other properties is crucial.

[0003] In the manufacturing and repair of shock absorbers, stroke calibration is a crucial step to ensure that their performance meets design requirements. Traditional calibration methods typically require the shock absorber to be horizontally clamped onto a calibration fixture for ease of operation and measurement. However, while horizontal clamping improves ease of clamping, the influence of gravity can cause variations in the distribution of oil and friction within the shock absorber, potentially leading to deviations in calibration data and reduced calibration accuracy. Furthermore, during actual motorcycle operation, the shock absorber operates more closely to a vertical force configuration, and horizontal clamping cannot fully simulate real-world conditions, further impacting the accuracy of the calibration results.

[0004] Currently, horizontal clamping is commonly used in the industry to improve calibration efficiency, but how to balance clamping convenience and calibration accuracy remains an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a laser scanning calibration fixture for motorcycle shock absorber stroke. It is based on a fixed ring that can automatically rotate within a 90-degree range. Inside the fixed ring, a gear structure consisting of a spur gear, a central gear, and planetary gears is installed. This, combined with the meshing of the fixed gear and the transmission gear, and the engagement of the transmission gear and the central gear, enables the fixed ring to rotate 90 degrees while simultaneously securing the motorcycle shock absorber to be calibrated and allowing it to rotate vertically and disengage from the spherical support.

[0006] The objective of this invention is achieved through the following technical solution: a laser scanning calibration fixture for the stroke of a motorcycle shock absorber, comprising a base frame component, a rotating frame assembly, a rotating insertion assembly, and an elastic ball support component. The rotating frame assembly includes a fixed ring, the rotating insertion assembly includes a spur gear and a fixed gear, and the elastic ball support component includes a spherical support.

[0007] The bottom end of the fixed ring is screwed to the top end of the base frame component. The spur gear is fixed in the inner ring of the fixed ring. A center frame is screwed to the middle of the fixed ring. A center gear is fixed at the bottom end of the center frame. Both ends of the center frame are screwed to end face cams. A planetary gear is fixed at the bottom end of each set of end face cams. The planetary gear meshes between the center gear and the spur gear. Both ends of the center frame are slidably connected to sliding pillars that bounce downwards. The sliding pillars on the same side are tangentially slidably connected to the top surface of the end face cams. Both ends of the center frame are fixed to V-shaped seats. The bottom end of the fixed gear is fixed to the top end of the base frame component. A transmission gear is screwed laterally to the bottom end of the fixed ring. The transmission gear meshes with the fixed gear and is connected to the center gear for transmission.

[0008] The paired spherical supports slide upwards onto the outer end of the fixed ring.

[0009] The process of using the technical solution of the present invention is as follows:

[0010] When the fixed ring is rotated to the horizontal position, the motorcycle shock absorber to be calibrated can be placed. When the fixed ring is rotated to the vertical position, the motorcycle shock absorber that has been placed can be calibrated by applying force.

[0011] Furthermore, when the fixed ring rotates to the horizontal position, it will form a transmission through the transmission gear and the fixed gear in the fixed position. The transmission gear and the center gear will also form a transmission through the transmission, driving the center gear, planetary gear and spur gear to form a transmission. This allows the center frame to rotate to the position where the motorcycle shock absorber to be calibrated is positioned when the fixed ring rotates to the horizontal position. At the same time, the planetary gear can drive the end face cam to rotate to the position where the sliding column is pushed out, so as to position one end of the motorcycle shock absorber into the V-shaped seat.

[0012] The V-shaped seat has a groove that matches one end of the motorcycle shock absorber, so that after one end of the motorcycle shock absorber is positioned in the V-shaped seat, the mounting hole of one end of the motorcycle shock absorber is exactly aligned with the position of the sliding column on the same side.

[0013] At this time, the bottom end of the sliding column is at the critical position of contacting the mounting hole at one end of the motorcycle shock absorber, and will not interfere with the operation of the motorcycle shock absorber placed in the V-shaped seat.

[0014] After placing one end of a pair of motorcycle shock absorbers into different V-shaped seats, the mounting hole at the other end of the motorcycle shock absorber will form an elastic snap-fit ​​with the ball bracket, which will then support the other end of the motorcycle shock absorber.

[0015] Subsequently, the fixed ring automatically rotates to a vertical position, and synchronously drives the transmission gear and the fixed gear to cooperate in transmission. This not only drives the rotation of the center frame, but also allows the planetary gear to drive the end face cam and the sliding column to form a sliding tangential engagement. After the fixed ring rotates to the vertical position, not only can the center frame rotate to a horizontal position, but the sliding column can also be inserted into the mounting hole at one end of the motorcycle shock absorber. As the center frame rotates to the horizontal position, the mounting hole at the other end of the motorcycle shock absorber elastically disengages from the ball bracket. The motorcycle shock absorber is clamped by the sliding column and the V-shaped seat, and enters a vertical position as the fixed ring rotates.

[0016] The top of the chassis component is equipped with an adjustable force application mechanism and a laser scanning device. A certain force can be used to push the bottom of the motorcycle shock absorber in a vertical position, causing the motorcycle shock absorber to change its stroke under different force values. With the use of the laser scanning device, the stroke changes of the motorcycle shock absorber can be captured in real time, and the stroke calibration of the motorcycle shock absorber can be completed.

[0017] By adopting the above technical solution, the present invention can achieve the following beneficial effects:

[0018] (1) The present invention is based on a fixed ring that can rotate automatically within a 90-degree range. It is combined with a gear structure formed by a spur gear, a planetary gear and a central gear. The fixed gear in a fixed position is used to drive the transmission through the cooperation between the transmission gear and the central gear. At the same time as the fixed ring rotates, the central gear and the central frame rotate simultaneously. This allows the central frame to rotate to the position where it can clamp the motorcycle shock absorber with the elastic ball support component, and also to rotate with the fixed ring to the vertical position where the motorcycle shock absorber's stroke is calibrated.

[0019] (2) When the planetary gear rotates, it can also drive the end face cam to form a sliding tangential engagement with the sliding column in the elastic sliding state. This allows the sliding column to be pushed out into place after the center frame rotates to the position where it engages with the elastic ball support component to clamp the motorcycle shock absorber. This does not interfere with the clamping of the motorcycle shock absorber between the V-shaped seat and the ball support. As the fixed ring rotates in the vertical direction, it can not only drive the rotation of the center frame, but also drive the sliding column to insert into the V-shaped seat. This allows the sliding column to be safely inserted into the mounting hole at one end of the motorcycle shock absorber after the fixed ring rotates to the vertical position. This also allows the other end of the motorcycle shock absorber to elastically disengage from the ball support. This allows the ball support to not only provide auxiliary support for the motorcycle shock absorber in the clamping state, but also not interfere with the stroke calibration of the motorcycle shock absorber after the fixed ring drives the motorcycle shock absorber to the vertical position. Attached Figure Description

[0020] 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the base frame component and the rotating frame assembly of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection between the rotating insertion assembly and the rotating frame assembly of the present invention;

[0024] Figure 4 This is a schematic diagram of the end face cam portion of the present invention;

[0025] Figure 5 This is an exploded structural diagram of the rotating insertion assembly of the present invention for clamping a motorcycle shock absorber;

[0026] Figure 6 This is a schematic diagram of the transmission gear part of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the elastic ball support component and the rotating insertion assembly of the present invention in use;

[0028] Figure 8 This is a schematic diagram showing the position and structure of the elastic ball support component and the motorcycle shock absorber of the present invention;

[0029] Figure 9 This is a schematic diagram of the force application component and laser displacement module of the present invention;

[0030] Figure 10 This is a first-view structural schematic diagram of the force-applying component and safety locking post of the present invention;

[0031] Figure 11 This is a structural schematic diagram of the force-applying component and safety locking post component from a second perspective of the present invention;

[0032] Figure 12 This is a third-view structural schematic diagram of the force-applying component and safety locking post of the present invention.

[0033] Figure label:

[0034] 1. Base frame components; 101. Base frame; 102. Main mounting plate;

[0035] 2. Rotating frame assembly; 201. Fixed ring; 202. Moving rotating seat; 203. Fixed rotating seat; 204. Hydraulic cylinder fixed rotating seat; 205. Hydraulic cylinder moving rotating seat; 206. Hydraulic cylinder;

[0036] 3. Rotary insertion assembly; 301. Spur gear; 302. Center seat; 303. Center frame; 304. Center gear; 305. Planetary shaft seat; 306. Planetary gear; 307. End face cam; 308. Slide; 309. Slide column; 310. Outer fixed plate; 311. Ball seat; 312. Top spring; 313. V-shaped seat; 314. Positioning socket; 315. Fixed gear; 316. Drive shaft seat; 317. Drive shaft; 318. Drive gear; 319. Drive bevel gear; 320. Center bevel gear; 321. Return plate;

[0037] 4. Elastic ball support component; 401. Fixed connection seat; 402. Elastic sliding column; 403. Side plate; 404. Thrust spring; 405. Ball support;

[0038] 5. Force application components; 501. Servo electric cylinder; 502. Lifting seat; 503. Thrust sensor; 504. Thrust support;

[0039] 6. Safety pin component; 601. Horizontal slide block; 602. Horizontal slide column; 603. External connecting rod; 604. Compression spring; 605. Limiting post; 606. Sleeve; 607. Slot; 608. Pin; 609. Sleeve connecting seat;

[0040] 7. Laser scanning probe;

[0041] 8. Laser displacement module; 801. Laser displacement sensor; 802. Reflective reference plate. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] like Figures 1-12 As shown, a laser scanning calibration fixture for motorcycle shock absorber stroke includes a base frame 1 with a fixed ring 201 screwed onto its top. The fixed ring 201 can automatically rotate 90 degrees. A spur gear 301 is fixed within the inner ring of the fixed ring 201. A center frame 303 is screwed onto the middle of the fixed ring 201. A center gear 304 is fixed to the bottom of the center frame 303. Both ends of the center frame 303 are screwed onto end face cams 307. A planetary gear 306 is fixed to the bottom of each set of end face cams 307. The planetary gears 306 mesh between the center gear 304 and the spur gear 301, enabling the end face cams 307 to rotate. 07 rotates synchronously with the center frame 303. Both ends of the center frame 303 are slidably connected to the sliding column 309 that bounces downward. The sliding column 309 on the same side slides tangentially to the top surface of the end face cam 307. Both ends of the center frame 303 are fixedly connected to the V-shaped seat 313 for positioning one end of the motorcycle shock absorber. The bottom end of the fixed gear 315 is fixedly connected to the top end of the base frame component 1. The bottom end of the fixed ring 201 is horizontally screwed with the transmission gear 318. The transmission gear 318 meshes with the fixed gear 315 and is connected to the center gear 304 for transmission. When the fixed ring 201 rotates, it can synchronously drive the rotation of the center gear 304.

[0045] The pair of spherical supports 405 slide upwards onto the outer end of the fixed ring 201 to assist in lifting the other end of the motorcycle shock absorber.

[0046] The working principle is as follows:

[0047] The purpose of the automatic rotation of the fixed ring 201 within a 90-degree range is to facilitate the placement of the motorcycle shock absorber to be calibrated when the fixed ring 201 is rotated to a horizontal position, and to facilitate the force calibration of the placed motorcycle shock absorber when the fixed ring 201 is rotated to a vertical position.

[0048] Furthermore, when the fixed ring 201 rotates to the horizontal position, it will form a transmission through the transmission gear 318 and the fixed gear 315 in the fixed position. The transmission gear 318 and the center gear 304 will also form a transmission through the transmission, driving the center gear 304, the planetary gear 306 and the spur gear 301 to form a transmission. This allows the center frame 303 to rotate to the position where the motorcycle shock absorber to be calibrated is positioned, which is the position where it is used in conjunction with the elastic ball support component 4. At the same time, the planetary gear 306 can drive the end face cam 307 to rotate to the position where the sliding column 309 is pushed out, so as to position one end of the motorcycle shock absorber into the V-shaped seat 313.

[0049] The V-shaped seat 313 has a groove that matches one end of the motorcycle shock absorber, so that after one end of the motorcycle shock absorber is positioned in the V-shaped seat 313, the mounting hole of one end of the motorcycle shock absorber is exactly aligned with the position of the sliding column 309 on the same side.

[0050] At this time, the bottom end of the sliding column 309 is at the critical position of contacting the mounting hole at one end of the motorcycle shock absorber, and will not interfere with the operation of the motorcycle shock absorber placed in the V-shaped seat 313.

[0051] After placing one end of a pair of motorcycle shock absorbers into different V-shaped seats 313, the mounting hole at the other end of the motorcycle shock absorber forms an elastic snap-fit ​​with the ball bracket 405, and the ball bracket 405 can lift the other end of the motorcycle shock absorber.

[0052] Subsequently, the fixed ring 201 is automatically rotated to a vertical position, which synchronously drives the transmission gear 318 and the fixed gear 315 to cooperate in transmission. This not only drives the rotation of the center frame 303, but also allows the planetary gear 306 to drive the end face cam 307 to form a sliding tangential engagement with the sliding column 309. After the fixed ring 201 rotates to the vertical position, not only can the center frame 303 rotate to a horizontal position, but the sliding column 309 can also be inserted into the mounting hole at one end of the motorcycle shock absorber. As the center frame 303 rotates to the horizontal position, the mounting hole at the other end of the motorcycle shock absorber elastically disengages from the ball support 405. The motorcycle shock absorber is clamped by the sliding column 309 and the V-shaped seat 313, and enters a vertical position with the rotation of the fixed ring 201, which facilitates the calibration test of the motorcycle shock absorber.

[0053] The top of the base frame component 1 is equipped with an adjustable force application and pressure mechanism and a laser scanning device. It can push the bottom of the motorcycle shock absorber in a vertical state with a certain set force, so that the motorcycle shock absorber will change its stroke under the push of different values ​​of force. With the use of the laser scanning device, the stroke change of the motorcycle shock absorber can be captured in real time, and the stroke calibration of the motorcycle shock absorber can be completed.

[0054] The purpose of using the fixed ring 201 to rotate the motorcycle shock absorber to a vertical position before calibrating the stroke is to ensure that the direction of gravity of the internal components of the motorcycle shock absorber (such as springs, damping oil, and pistons) is consistent with the actual riding situation in the vertical position, which can more accurately reflect the preload and rebound characteristics.

[0055] The specific structures of the base frame component 1 and the swivel frame assembly 2 are as follows: Figure 2 As shown, the base frame 101 is a frame structure, and the main fixing plate 102 is fixedly installed on one side of the top of the base frame 101.

[0056] Both sides of the bottom end of the fixed ring 201 are fixed with movable rotating seats 202, and the top of the main fixed plate 102 is fixed with a pair of fixed rotating seats 203. The movable rotating seats 202 on the same side are rotatably connected to the fixed rotating seats 203. A laser scanning probe 7 is also symmetrically fixed at one end of the main fixed plate 102 with the fixed ring 201 as the center. It is used to scan and identify the motorcycle shock absorber in real time as the fixed ring 201 enters the vertical state. It can identify the stroke change of the motorcycle shock absorber after receiving different values ​​of thrust in real time, and form a calibration of its stroke.

[0057] The hydraulic cylinder fixed seats 204 are fixedly connected in pairs to the top of the main fixed plate 102. One end of each set of movable seats 202 is fixedly connected to a hydraulic cylinder movable seat 205. The body of the hydraulic cylinder 206 is rotatably connected to the hydraulic cylinder fixed seat 204, and the telescopic rod head of the hydraulic cylinder 206 is rotatably connected to the hydraulic cylinder movable seat 205. Both sets of hydraulic cylinders 206 are connected to an external hydraulic control system, which can stably and safely control the fixed ring 201 to form a rotational movement within a 90-degree range.

[0058] The specific structures of the rotating insertion component 3 and the elastic ball support component 4 are as follows: Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the center seat 302 is fixedly installed on the top of the fixed ring 201, the rotating shaft at the bottom of the center frame 303 is rotatably connected to the center seat 302, the center gear 304 is fixed at the bottom end of the rotating shaft of the center frame 303, and the center gear 304 is coaxially arranged with the spur gear 301.

[0059] Both ends of the center frame 303 are fixed with planetary shaft seats 305. The rotating shaft at the bottom of the end face cam 307 is rotatably connected to the planetary shaft seat 305. The planetary gear 306 is inserted and fixed at the bottom end of the rotating shaft of the end face cam 307.

[0060] Each set of center frame 303 has a set of fixed sliding blocks 308 on both sides. The top of the set of sliding columns 309 are fixedly connected to an outer fixed plate 310. The sliding columns 309 on the same side are slidably connected to the sliding blocks 308. The bottom of the sliding column 309 facing the end face cam 307 is fixedly connected to a ball seat 311. The top spring 312 is sleeved in the sliding column 309, and one end is fixed to the ball seat 311, and the other end is fixed to the top body of the center frame 303. Under the support of the top spring 312 on the ball seat 311, the ball seat 311 and the end face cam 307 can form a sliding tangential fit.

[0061] Each set of V-shaped seats 313 has a fixedly connected positioning socket 314 at its top, and the sliding post 309 opposite to the V-shaped seat 313 is slidably connected in the positioning socket 314.

[0062] Since the V-shaped seat 313 has a groove in its main body that matches one end of the motorcycle shock absorber, the supporting elastic force formed by the top spring 312 on the ball seat 311 allows the ball seat 311 to always be in sliding tangential engagement with the top of the end face cam 307. When the end face cam 307 rotates to the high position and is in sliding tangential engagement with the ball seat 311, the slide column 309 is in the pushed-out position, which facilitates positioning one end of the motorcycle shock absorber into the V-shaped seat 313. When the end face cam 307 rotates to the low position and is in sliding tangential engagement with the ball seat 311, the slide column 309 can be inserted into the mounting hole of one end of the motorcycle shock absorber in the V-shaped seat 313.

[0063] Each set of rotating seats 202 has a drive shaft seat 316 fixedly mounted on its side. The two ends of the drive shaft 317 are rotatably connected to different drive shaft seats 316. The fixed gear 315 is fixedly mounted on the top of the main fixed plate 102. The drive gear 318 and the drive bevel gear 319 are both inserted and fixed in the drive shaft 317. The bottom end of the rotating shaft of the center frame 303 is also inserted and fixedly mounted with a center bevel gear 320, and the center bevel gear 320 meshes with the drive bevel gear 319.

[0064] The central gear 304 will not interfere with the transmission between the transmission gear 318 and the fixed gear 315, and the inner bottom of the central gear 304 is hollow to provide space for the engagement of the transmission bevel gear 319 and the central bevel gear 320.

[0065] The top of the fixed ring 201 is also fixed with a return plate 321, which can safely limit the rotation position of the center frame 303 after the center frame 303 rotates to the vertical position with the fixed ring 201.

[0066] The outer end of the fixed ring 201 is fixedly connected to a pair of fixed connecting seats 401. Each set of fixed connecting seats 401 is slidably connected to a pair of elastic sliding columns 402. The side plates 403 are fixedly connected to the two ends of the elastic sliding columns 402 respectively. Each set of elastic sliding columns 402 is fitted with a thrust spring 404. The spherical support 405 is fixedly connected to the side plate 403 at the top position. The thrust spring 404 can form an upward supporting elastic force on the spherical support 405, so that the spherical support 405 can not only serve as an auxiliary structure to form an elastic lifting support action for the motorcycle shock absorber in the clamping state, but also complete the process when one end of the motorcycle shock absorber is placed into the V-shaped seat 313. As the center frame 303 rotates to the vertical state with the fixed ring 201, the spherical support 405 elastically retracts and disengages from the mounting hole at the other end of the motorcycle shock absorber.

[0067] Furthermore, the elastic force of the thrust spring 404 on the spherical support 405 is sufficient to provide stable and safe support for the other end of the motorcycle shock absorber.

[0068] The force-applying component 5 is used to apply force to the bottom of the motorcycle shock absorber when it is in a vertical position, and the safety retaining member 6 is used to improve the safety and reliability of the force-applying process using the force-applying component 5. Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, the bottom body of the servo cylinder 501 is fixedly connected to the top frame of the base frame 101. A thrust sensor 503 is fixedly installed on the top of the telescopic rod of the servo cylinder 501. A lifting seat 502 is fixedly connected to the top of the thrust sensor 503. Thrust supports 504 are fixed at the bottom of both ends of the lifting seat 502. After the motorcycle shock absorber is clamped and rotated to the vertical position with the fixed ring 201, the thrust supports 504 on the same side are directly opposite the bottom of the motorcycle shock absorber.

[0069] The thrust sensor 503 can monitor the force pushed out by the telescopic rod of the servo cylinder 501 in real time, so as to realize the output of different values ​​of thrust from the servo cylinder 501 to the lifting seat 502, so that the lifting seat 502 abuts against the bottom of the motorcycle shock absorber through the thrust support 504, forming different values ​​of thrust to push the bottom of the motorcycle shock absorber.

[0070] Both ends of the main body of the lifting seat 502 are fixed with horizontal slide seats 601. Each set of horizontal slide seats 601 is slidably connected with a horizontal slide column 602. An outer connecting rod 603 is fixedly connected between the outer ends of two sets of horizontal slide columns 602. A compression spring 604 is sleeved in each set of horizontal slide columns 602. One end of the compression spring 604 is fixedly connected to the outer connecting rod 603, and the other end is fixedly connected to the lifting seat 502, which can form an elastic separation between the outer connecting rod 603 and the lifting seat 502.

[0071] The limiting post 605 is installed and fixed in the middle of the inner side of the outer connecting rod 603. A swivel connecting seat 609 is fixed in the middle of the outer side of the outer connecting rod 603. One end of the swivel sleeve 606 is rotatably connected to the swivel connecting seat 609, and the other end is provided with a slot 607. A locking post 608 is fixed in the middle of the inner end of the lifting seat 502.

[0072] After the motorcycle shock absorber is clamped and rotated to a vertical position with the retaining ring 201, the thrust support 504 on the same side aligns with the bottom of the motorcycle shock absorber, and the transverse sliding pin 602 on the same side aligns with the mounting hole at the bottom of the motorcycle shock absorber. By pushing the outer connecting rod 603, the transverse sliding pin 602 can be inserted into the mounting hole at the bottom of the motorcycle shock absorber. Rotating the sleeve 606 allows the slot 607 and the locking pin 608 to engage. The elastic locking force formed by 608 is much greater than the supporting elastic force of the compression spring 604 on the external connecting rod 603, which allows the transverse sliding column 602 to be safely inserted into the mounting hole at the bottom of the motorcycle shock absorber. This ensures that when the lifting seat 502 pushes the bottom of the motorcycle shock absorber upward, the motorcycle shock absorber will not move arbitrarily between the lifting seat 502 and the center frame 303, thereby improving the accuracy and reliability of the servo electric cylinder 501 applying force to the motorcycle shock absorber through the lifting seat 502 and the thrust support 504.

[0073] A laser displacement module 8, consisting of a laser displacement sensor 801 and a reflective reference plate 802, is also installed between the center frame 303 and the lifting seat 502. The laser displacement sensor 801 is fixed at both ends of the center frame 303, and the reflective reference plates 802 are fixed in pairs at the top of the lifting seat 502. After the center frame 303 rotates to the vertical position with the fixed ring 201, the laser displacement sensor 801 and the reflective reference plate 802 on the same side are aligned. The laser displacement sensor 801 can be used to perform high-precision dimensional measurement with the reflective reference plate 802. With the use of the laser scanning probe 7, the stroke calibration of the motorcycle shock absorber under different applied forces in the vertical state can be accurately completed.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; 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 or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser scanning calibration fixture for motorcycle shock absorber stroke, comprising a base frame component (1) and a rotating frame assembly (2), characterized in that: It also includes a rotating insert assembly (3) and an elastic ball support assembly (4); The rotating frame assembly (2) includes a fixed ring (201), the rotating insert assembly (3) includes a spur gear (301) and a fixed gear (315), and the elastic ball support member (4) includes a ball support (405). The bottom end of the fixed ring (201) is screwed to the top end of the base frame component (1). The spur gear (301) is fixed in the inner ring of the fixed ring (201). A center frame (303) is screwed to the middle of the fixed ring (201). A center gear (304) is fixed to the bottom end of the center frame (303). Both ends of the center frame (303) are screwed with end face cams (307). A planetary gear (306) is fixed to the bottom end of each set of end face cams (307). The planetary gears (306) mesh between the center gear (304) and the spur gear (301). The center frame (303) Both ends of the slide are slidably connected to the slide column (309) that bounces downwards. The slide column (309) on the same side slides tangentially to the top surface of the end face cam (307). Both ends of the center frame (303) are fixedly connected to the V-shaped seat (313). The bottom end of the fixed gear (315) is fixedly connected to the top end of the base frame component (1). The bottom end of the fixed ring (201) is horizontally screwed with the transmission gear (318). The transmission gear (318) meshes with the fixed gear (315) and is connected to the center gear (304) for transmission. Pairs of spherical supports (405) bounce upwards and slide on the outer end of the fixed ring (201). The base frame component (1) includes a base frame (101) and a main fixing plate (102), with the main fixing plate (102) fixed to one side of the top of the base frame (101); The rotating frame assembly (2) also includes a hydraulic cylinder fixed rotating seat (204) and a hydraulic cylinder (206). The bottom ends of the fixed ring (201) are fixed with movable rotating seats (202) on both sides. The top of the main fixed plate (102) is fixed with a pair of fixed rotating seats (203). The movable rotating seats (202) on the same side are rotatably connected to the fixed rotating seats (203). A laser scanning probe (7) is also symmetrically fixed at one end of the main fixed plate (102). The hydraulic cylinder fixed rotating seats (204) are fixed in pairs at the top of the main fixed plate (102). Each set of movable rotating seats (202) is fixed with a hydraulic cylinder movable rotating seat (205) at one end. The body of the hydraulic cylinder (206) is rotatably connected to the hydraulic cylinder fixed rotating seat (204). The telescopic rod head of the hydraulic cylinder (206) is rotatably connected to the hydraulic cylinder movable rotating seat (205). The rotating insert assembly (3) also includes a drive shaft (317) and a drive bevel gear (319). Each set of rotating seats (202) has a drive shaft seat (316) fixed on its side. The two ends of the drive shaft (317) are rotatably connected to different drive shaft seats (316). The fixed gear (315) is fixedly installed on the top of the main fixed plate (102). The drive gear (318) and the drive bevel gear (319) are inserted and fixed in the drive shaft (317). The bottom end of the rotating shaft of the center frame (303) is also inserted and fixed with a center bevel gear (320), and the center bevel gear (320) meshes with the drive bevel gear (319).

2. The laser scanning calibration fixture for motorcycle shock absorber stroke according to claim 1, characterized in that: The rotary insertion assembly (3) also includes a center seat (302) and a top spring (312). The center seat (302) is fixedly installed on the top of the fixed ring (201). The rotating shaft at the bottom of the center frame (303) is rotatably connected to the center seat (302). The center gear (304) is fixed at the bottom end of the rotating shaft of the center frame (303). Planetary shaft seats (305) are installed and fixed at both ends of the center frame (303). The rotating shaft at the bottom of the end face cam (307) is rotatably connected to the planetary shaft seat (305). The planetary gear (306) is inserted and fixed at the bottom end of the rotating shaft of the end face cam (307). Slide seats (308) are fixedly installed in groups on both sides of each group of center frames (303). The top of the slide column (309) is fixedly connected to the outer plate (310). The slide column (309) on the same side is slidably connected to the slide seat (308). The bottom of the slide column (309) facing the end face cam (307) is fixedly connected to the ball seat (311). The top spring (312) is sleeved in the slide column (309), and one end is fixed to the ball seat (311), and the other end is fixed to the top body of the center frame (303). The ball seat (311) and the end face cam (307) are slidably tangentially engaged. The top of each set of V-shaped seats (313) is fixed with a positioning socket (314). The slide column (309) facing the V-shaped seat (313) is slidably connected in the positioning socket (314).

3. The laser scanning calibration fixture for motorcycle shock absorber stroke according to claim 1, characterized in that: The elastic ball support component (4) also includes a side plate (403), and a pair of fixed connecting seats (401) are fixedly connected to the outer end of the fixed ring (201). Each pair of fixed connecting seats (401) is slidably connected to a pair of elastic sliding columns (402). The side plate (403) is fixedly connected to both ends of the elastic sliding column (402). Each pair of elastic sliding columns (402) is fitted with a thrust spring (404). The ball support (405) is fixedly connected to the side plate (403) at the top position.

4. The laser scanning calibration fixture for motorcycle shock absorber stroke according to claim 1, characterized in that: The top frame of the base frame (101) is also equipped with a force application component (5). The force application component (5) includes a servo electric cylinder (501). The bottom body of the servo electric cylinder (501) is fixedly connected to the top frame of the base frame (101). A thrust sensor (503) is fixedly installed on the top of the telescopic rod of the servo electric cylinder (501). A lifting seat (502) is fixedly connected to the top of the thrust sensor (503). Thrust supports (504) are fixed at both ends of the lifting seat (502).

5. The laser scanning calibration fixture for motorcycle shock absorber stroke according to claim 4, characterized in that: The lifting seat (502) is also equipped with a safety locking post component (6), which includes a limiting post (605) and a rotating sleeve (606). Both ends of the main body of the lifting seat (502) are fixedly fitted with horizontal sliding seats (601). Each set of horizontal sliding seats (601) is slidably connected with a horizontal sliding column (602). An external connecting rod (603) is fixedly connected between the outer ends of the horizontal sliding columns (602). Each set of horizontal sliding columns (602) is fitted with a compression spring (604). One end of the spring (604) is fixed to the outer connecting rod (603), and the other end is fixed to the lifting seat (502). The limiting post (605) is installed and fixed in the middle of the inner side of the outer connecting rod (603). A rotating sleeve connecting seat (609) is fixed in the middle of the outer side of the outer connecting rod (603). One end of the rotating sleeve (606) is rotatably connected to the rotating sleeve connecting seat (609), and the other end is provided with a slot (607). A locking post (608) is fixed in the middle of the inner end of the lifting seat (502).

6. The laser scanning calibration fixture for motorcycle shock absorber stroke according to claim 4, characterized in that: A laser displacement module (8) is also installed between the center frame (303) and the lifting seat (502). The laser displacement module (8) consists of a laser displacement sensor (801) and a reflective reference plate (802). The laser displacement sensor (801) is installed and fixed at both ends of the center frame (303), and the reflective reference plates (802) are fixed in pairs at the top of the lifting seat (502).

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