Adjustable motorcycle left cover curve positioning clamp

CN224737788UActive Publication Date: 2026-09-11CHONGQING 903 MACHINERY MANUFACTURING CO LTD
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Patent Information

Application Number
CN202522185438.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-16
Publication Date
2026-09-11
Estimated Expiration
2035-10-16

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于提供一种可调式摩托车左盖曲面定位夹具,能够解决难以根据左盖曲面的型号将夹具进行调节,因此其夹持机构适用范围较窄的问题

Benefits of technology

[0014]与现有技术相比,本实用新型的有益效果是:该可调式摩托车左盖曲面定位夹具,通过自锁式双向丝杠能带动两组夹持定位杆灵活移动,可根据不同型号摩托车左盖的曲面弧度、尺寸差异快速调整定位位置,无需为每种左盖单独定制专用夹具,大幅降低设备采购与存储成本,同时避免传统夹具换型时需拆解重装的繁琐流程,缩短换型时间,适配多型号左盖批量加工场景,提升生产灵活性;在此基础上,自锁式丝杠带动另一组夹持定位杆移动形成三组夹持定位杆协同固定,能针对左盖曲面结构形成三点稳定支撑,避免单一或两点固定易出现的曲面工件移位、受力不均问题,摩托车左盖多为不规则曲面,加工时若固定不稳易导致铣削、钻孔等工序出现尺寸偏差,三组固定可牢牢锁住工件,保障加工精度,同时避免夹持力集中造成的左盖表面凹陷、刮花,保护工件外观品相。此外,驱动电机能带动左盖旋转,加工过程中无需拆卸工件即可调整左盖加工角度,满足左盖不同曲面位置的加工需求,彻底消除传统加工中“加工一个面拆一次工件”的重复定位误差,确保各工序定位基准一致,减少返工率,同时节省拆卸与重装的工时,提升单件左盖加工效率。

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Abstract

This utility model discloses an adjustable motorcycle left cover curved surface positioning fixture, relating to the field of motorcycle parts processing technology. The adjustable motorcycle left cover curved surface positioning fixture includes a base plate, a rotating mechanism, and a clamping assembly. A rotating column is rotatably mounted on the top of the base plate, and a clamping platform is fixedly mounted on the top of the rotating column. This adjustable motorcycle left cover curved surface positioning fixture, through a self-locking bidirectional lead screw, can drive two sets of clamping positioning rods to move flexibly. It can quickly adjust the positioning position according to the curvature and size differences of different motorcycle left cover models, eliminating the need for custom-made fixtures for each left cover, significantly reducing equipment procurement and storage costs. It also avoids the cumbersome process of disassembly and reassembly required when changing fixtures, shortening changeover time and adapting to batch processing scenarios of multiple left cover models, improving production flexibility. Furthermore, the self-locking lead screw drives another set of clamping positioning rods to move, forming a three-set clamping positioning rod system for coordinated fixation.
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Description

Technical Field

[0001] This utility model relates to the field of motorcycle parts processing technology, and in particular to an adjustable motorcycle left cover curved surface positioning fixture. Background Technology

[0002] A milling machine positioning fixture for processing motorcycle side covers, as disclosed in Chinese patent document CN213053828U, includes a processing table. Two first cylinders are mounted on the left side of a first fixed plate. Multiple springs are fixedly connected to the right side of a connecting plate, and a movable clamping block is fixedly connected to the right side of the springs. A fixed clamping block is provided on the left side of a second fixed plate. Side plates are fixedly connected to both the front and rear sides of the fixed clamping block. Second cylinders are mounted on the outer walls of both side plates. Positioning blocks are mounted on opposite sides of two second connecting rods. Therefore, when the movable clamping block clamps the motorcycle side cover to the left of the fixed clamping block, it effectively reduces the instantaneous pressure on the motorcycle side cover, preventing damage during clamping. It provides a certain buffering force during clamping, thus protecting the motorcycle side cover from damage during positioning.

[0003] The aforementioned milling machine positioning fixture for processing motorcycle side covers is difficult to adjust according to the model of the left cover's curved surface during use. Therefore, its clamping mechanism has a narrow range of applications and low practicality. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable positioning clamp for the curved surface of the left cover of a motorcycle, which can solve the problem that it is difficult to adjust the clamp according to the model of the curved surface of the left cover, thus the clamping mechanism has a narrow range of applications.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An adjustable motorcycle left cover curved surface positioning fixture includes a base plate, a rotating mechanism and a clamping assembly. A rotating column is rotatably mounted on the top of the base plate, and a clamping platform is fixedly mounted on the top of the rotating column.

[0006] A rotating mechanism is mounted on the base plate, and the rotating mechanism includes a drive motor, which is used to drive the clamping platform to rotate.

[0007] The clamping assembly is located on the clamping platform. The clamping assembly includes a self-locking lead screw and a self-locking bidirectional lead screw, and both the self-locking lead screw and the self-locking bidirectional lead screw are provided with clamping positioning rods.

[0008] Preferably, the rotating mechanism further includes a support plate, a rotating rod, a transmission gear, and a gear ring. The support plate is fixedly installed on the top of the base plate, and a drive motor is fixedly installed on the top inner side of the support plate. The rotating shaft of the drive motor extends to the top of the support plate and is fixedly installed with a rotating rod. A transmission gear is fixedly installed on the outer wall of the rotating rod, and a gear ring is fixedly installed on the outer wall of the rotating rod. The transmission gear meshes with the gear ring.

[0009] Preferably, the clamping assembly further includes a sealing plate, a first movable plate, a second movable plate, and a clamping positioning rod. The clamping platform has an opening inside, and an installation plate is fixedly installed on the inner wall of the opening. There are two sets of installation plates. A self-locking bidirectional screw is rotatably installed on the opposite surfaces of the two sets of installation plates. The second movable plate is threaded on the outer wall of the self-locking bidirectional screw. The second movable plate is located in the opening and is slidably installed with the clamping platform.

[0010] Preferably, the clamping platform is further provided with a transmission groove inside, and a sealing plate is fixedly installed on the inner wall of the transmission groove. A self-locking screw is rotatably installed on one side of the sealing plate and on one side of the inner wall of the transmission groove. A first moving plate is threaded on the outer wall of the self-locking screw. The first moving plate is located in the transmission groove and is slidably installed with the clamping platform.

[0011] Preferably, clamping and positioning rods are fixedly installed on the top of both the first and second movable plates.

[0012] Preferably, the top of the clamping platform has an opening for the clamping positioning rod to move.

[0013] Preferably, one end of the self-locking bidirectional lead screw extends to the front side of the mounting plate and is fixedly mounted with a handle, and one side of the self-locking lead screw extends to one side of the sealing plate and is fixedly mounted with a handle.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This adjustable motorcycle left cover curved surface positioning fixture can drive two sets of clamping positioning rods to move flexibly through a self-locking bidirectional lead screw. It can quickly adjust the positioning position according to the curvature and size differences of the left cover of different models of motorcycles, eliminating the need to customize special fixtures for each type of left cover, greatly reducing equipment procurement and storage costs. At the same time, it avoids the cumbersome process of disassembly and reassembly required when changing traditional fixtures, shortening the changeover time, adapting to batch processing scenarios of multiple models of left covers, and improving production flexibility. On this basis, the self-locking lead screw drives another set of clamping positioning rods to move, forming three sets of clamping positioning rods to fix the left cover curved surface structure in a coordinated manner. This can form three stable supports for the curved surface structure of the left cover, avoiding the problems of workpiece displacement and uneven force that are easily caused by single or two-point fixation. Motorcycle left covers are mostly irregular curved surfaces. If the fixation is unstable during processing, it can easily lead to dimensional deviations in milling, drilling and other processes. The three sets of fixation can firmly lock the workpiece, ensuring processing accuracy, while avoiding the surface dents and scratches of the left cover caused by concentrated clamping force, thus protecting the appearance of the workpiece. In addition, the drive motor can rotate the left cover, and the processing angle of the left cover can be adjusted without disassembling the workpiece during the processing. This meets the processing requirements of different curved surface positions of the left cover, completely eliminates the repeated positioning error of "disassembling the workpiece once to process one surface" in traditional processing, ensures that the positioning benchmark of each process is consistent, reduces the rework rate, and saves the time of disassembly and reassembly, thereby improving the processing efficiency of a single left cover. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a front sectional view of the present invention;

[0018] Figure 3 This is a right-side sectional view of the present invention.

[0019] Reference numerals: 1. Base plate; 2. Rotating column; 3. Clamping platform; 4. Rotating mechanism; 401. Support plate; 402. Rotating rod; 403. Transmission gear; 404. Drive motor; 405. Gear ring; 5. Clamping assembly; 501. Sealing plate; 502. Self-locking lead screw; 503. First moving plate; 504. Self-locking bidirectional lead screw; 505. Second moving plate; 506. Clamping positioning rod. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: an adjustable motorcycle left cover curved surface positioning fixture includes a base plate 1, a rotating mechanism 4, and a clamping assembly 5. A rotating column 2 is rotatably mounted on the top of the base plate 1, and a clamping platform 3 is fixedly mounted on the top of the rotating column 2. The rotating mechanism 4 is located on the base plate 1 and includes a drive motor 404, which drives the clamping platform 3 to rotate. The clamping assembly 5 is located on the clamping platform 3 and includes a self-locking lead screw 502 and a self-locking bidirectional lead screw 504. Both the self-locking lead screw 502 and the self-locking bidirectional lead screw 504 are provided with clamping positioning rods 506.

[0022] Furthermore, the rotating mechanism 4 also includes a support plate 401, a rotating rod 402, a transmission gear 403, and a gear ring 405. The support plate 401 is fixedly installed on the top of the base plate 1. A drive motor 404 is fixedly installed on the top inner side of the support plate 401. The shaft of the drive motor 404 extends to the top of the support plate 401 and is fixedly installed with the rotating rod 402. The transmission gear 403 is fixedly installed on the outer wall of the rotating rod 402. The gear ring 405 is fixedly installed on the outer wall of the rotating column 2. The transmission gear 403 meshes with the gear ring 405. The clamping assembly 5 also includes a sealing plate 501, a first moving plate 503, a second moving plate 505, and a clamping positioning rod 506. The clamping platform 3 has an internal opening. The system has an opening, and two sets of mounting plates are fixedly installed on the inner wall of the opening. A self-locking bidirectional lead screw 504 is rotatably mounted on the opposing surfaces of the two sets of mounting plates. A second movable plate 505 is threaded onto the outer wall of the self-locking bidirectional lead screw 504. The second movable plate 505 is located in the opening and is slidably mounted to the clamping platform 3. A transmission groove is also provided inside the clamping platform 3. A sealing plate 501 is fixedly installed on the inner wall of the transmission groove. A self-locking lead screw 502 is rotatably mounted on one side of the sealing plate 501 and one side of the inner wall of the transmission groove. A first movable plate 503 is threaded onto the outer wall of the self-locking lead screw 502. The first movable plate 503 is located within the transmission groove and is slidably mounted to the clamping platform 3. The holding platform 3 is slidably installed. Clamping and positioning rods 506 are fixedly installed on the top of both the first moving plate 503 and the second moving plate 505. An opening is provided on the top of the clamping platform 3 for the clamping and positioning rods 506 to move. One end of the self-locking bidirectional screw 504 extends to the front of the mounting plate and is fixedly fitted with a handle. One side of the self-locking screw 502 extends to one side of the sealing plate 501 and is fixedly fitted with a handle. The self-locking bidirectional screw 504 can drive the two sets of clamping and positioning rods 506 to move flexibly. The positioning position can be quickly adjusted according to the curvature and size differences of the left cover of different motorcycle models, eliminating the need to customize special clamps for each left cover, significantly reducing equipment procurement and storage costs, and avoiding… The traditional fixture requires a cumbersome disassembly and reassembly process when changing models, shortening the changeover time and adapting to batch processing scenarios of multiple left cover models, thus improving production flexibility. On this basis, the self-locking lead screw 502 drives another set of clamping and positioning rods 506 to move, forming three sets of clamping and positioning rods 506 working together to fix the left cover. This can form three stable supports for the curved surface structure of the left cover, avoiding the problems of workpiece displacement and uneven force that are easily caused by single or two-point fixation. Motorcycle left covers are mostly irregular curved surfaces. If the fixation is unstable during processing, it can easily lead to dimensional deviations in milling, drilling and other processes. The three sets of fixation can firmly lock the workpiece, ensuring processing accuracy, while avoiding the dents and scratches on the left cover surface caused by concentrated clamping force, thus protecting the appearance of the workpiece.In addition, the drive motor 404 can rotate the left cover, and the processing angle of the left cover can be adjusted without disassembling the workpiece during the processing, so as to meet the processing requirements of different curved surface positions of the left cover. This completely eliminates the repeated positioning error of "disassembling the workpiece once to process one surface" in traditional processing, ensures that the positioning reference of each process is consistent, reduces the rework rate, and saves the time of disassembly and reassembly, thereby improving the processing efficiency of a single left cover.

[0023] Working principle: The aforementioned drive motor 404 is existing technology, therefore its internal structure and control method do not require detailed explanation. During use, rotating the handle on the self-locking double-acting screw 504 causes it to rotate. This rotation causes the second moving plate 505 to slide on the clamping platform 3. The movement of the second moving plate 505 moves the two sets of clamping positioning rods 506. After adjusting the distance between the two sets of clamping positioning rods 506, the left cover is placed on the clamping platform 3, and then... The handle on the self-locking screw 502 drives the self-locking screw 502 to rotate. The rotation of the self-locking screw 502 causes the first moving plate 503 to slide on the clamping platform 3, which in turn drives another set of clamping and positioning rods 506 to move. The left cover can be clamped by the three sets of clamping and positioning rods 506. During processing, the drive motor 404 is started to drive the rotating rod 402 and the transmission gear 403 to rotate. The rotation of the transmission gear 403 drives the rotating column 2 and the clamping platform 3 to rotate through the gear ring 405, thereby enabling the left cover to rotate.

[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An adjustable motorcycle left cover curve positioning fixture, characterized in that, include: A base plate (1) is rotatably mounted on the top of the base plate (1), and a clamping platform (3) is fixedly mounted on the top of the rotating column (2). A rotating mechanism (4) is provided on the base plate (1). The rotating mechanism (4) includes a drive motor (404) for driving the clamping platform (3) to rotate. The clamping assembly (5) is located on the clamping platform (3). The clamping assembly (5) includes a self-locking lead screw (502) and a self-locking bidirectional lead screw (504). Both the self-locking lead screw (502) and the self-locking bidirectional lead screw (504) are provided with clamping positioning rods (506).

2. The adjustable motorcycle left cover curved surface positioning fixture according to claim 1, characterized in that: The rotating mechanism (4) further includes a support plate (401), a rotating rod (402), a transmission gear (403), and a gear ring (405). The support plate (401) is fixedly installed on the top of the base plate (1). A drive motor (404) is fixedly installed on the top inner side of the support plate (401). The shaft of the drive motor (404) extends to the top of the support plate (401) and is fixedly installed with the rotating rod (402). The transmission gear (403) is fixedly installed on the outer wall of the rotating rod (402). The gear ring (405) is fixedly installed on the outer wall of the rotating column (2). The transmission gear (403) meshes with the gear ring (405).

3. The adjustable motorcycle left cover curved surface positioning fixture according to claim 2, characterized in that: The clamping assembly (5) also includes a sealing plate (501), a first movable plate (503), a second movable plate (505), and a clamping positioning rod (506). The clamping platform (3) has an opening inside, and an installation plate is fixedly installed on the inner wall of the opening. There are two sets of installation plates. A self-locking bidirectional screw (504) is rotatably installed on the opposite surface of the two sets of installation plates. The second movable plate (505) is threaded on the outer wall of the self-locking bidirectional screw (504). The second movable plate (505) is located in the opening and is slidably installed with the clamping platform (3).

4. The adjustable motorcycle left cover curved surface positioning fixture according to claim 3, characterized in that: The clamping platform (3) is also provided with a transmission groove. A sealing plate (501) is fixedly installed on the inner wall of the transmission groove. A self-locking screw (502) is rotatably installed on one side of the sealing plate (501) and the inner wall of the transmission groove. A first moving plate (503) is threaded on the outer wall of the self-locking screw (502). The first moving plate (503) is located in the transmission groove and is slidably installed with the clamping platform (3).

5. The adjustable motorcycle left cover curved surface positioning fixture according to claim 4, characterized in that: The top of both the first movable plate (503) and the second movable plate (505) are fixedly equipped with clamping and positioning rods (506).

6. The adjustable motorcycle left cover curved surface positioning fixture according to claim 5, characterized in that: The clamping platform (3) has an opening at its top for the clamping positioning rod (506) to move.

7. An adjustable motorcycle left fairing curve positioning fixture according to claim 6, wherein: One end of the self-locking bidirectional lead screw (504) extends to the front side of the mounting plate and is fixedly mounted with a handle, and one side of the self-locking lead screw (502) extends to one side of the sealing plate (501) and is fixedly mounted with a handle.

Citation Information

Patent Citations

  • Milling machine positioning fixture for machining motorcycle side covers

    CN213053828U