一种电动自行车前三角管件夹持定位装置

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By designing a combination of support frame, guide rail, sliding parts, clamping mechanism and rotary positioning components, the problem of unstable clamping during the welding of the front triangular tube of electric bicycle was solved, achieving high-precision and flexible clamping and positioning, and improving welding quality.

CN224508835UActive Publication Date: 2026-07-17GIANT ELECTRIC VEHICLE KUNSHAN

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: GIANT ELECTRIC VEHICLE KUNSHAN
Filing Date: 2025-07-23
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

Existing positioning fixtures have poor shape adaptability and matching in the welding process of front triangular tubes for electric bicycles, and the clamping method is limited, resulting in low welding accuracy and affecting the quality of finished products.

Method used

A clamping and positioning device is designed, comprising a support frame, guide rail, sliding component, clamping mechanism, rotating mechanism, and positioning mechanism. Through the combination of sliding, rotating, and positioning components, a flexible and adaptable clamping of the front triangular tube is achieved, ensuring a firm and reliable fixation.

Benefits of technology

It improves clamping and positioning accuracy, expands the application range, is easy to operate, and enhances the stability of the welding process and the quality of finished products.

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Abstract

本实用新型涉及电动自行车生产加工技术领域，具体公开了一种电动自行车前三角管件夹持定位装置，其中，第一滑动件固定连接于第二导轨，且第一滑动件滑动设置于第一导轨上，第二滑动件滑动设置于第二导轨上，第一定位块凸设于安装座的一端，安装座沿自身长度方向凸设有滑轨，第一驱动件能够驱动第二定位块滑动设置于滑轨上，以使首管夹持固定于第一定位块与第二定位块之间，旋转机构能够驱动安装座旋转。可根据前三角管件的规格形状，适应性地移动夹持机构沿第一方向以及第二方向上的位置，同时通过旋转机构将其旋转至合适的角度，进一步调整第一定位块的夹持固定位置，以实现对于前三角管件的快速、精准装夹，扩大应用范围，提升焊接效率。

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Claims

1. An electric bicycle front triangle tubing clamp positioning device, characterized in that, include: Support frame (1); A first guide rail (2) extends along a first direction and is disposed on the support frame (1); The second guide rail (3) extends along a second direction, and the first direction is perpendicular to the second direction; The first sliding member is fixedly connected to the second guide rail (3) and is slidably disposed on the first guide rail (2); The second sliding member is slidably disposed on the second guide rail (3); The clamping mechanism includes a mounting base (4), a first positioning block (5), a second positioning block (6), and a first driving member (7). The first positioning block (5) protrudes from one end of the mounting base (4), and the mounting base (4) has a slide rail (8) protruding along its length. The first driving member (7) is fixedly installed at the other end of the mounting base (4), and the first driving member (7) can drive the second positioning block (6) to slide on the slide rail (8) so that the head tube (9) is clamped and fixed between the first positioning block (5) and the second positioning block (6). A rotating mechanism is mounted on the second sliding member and is connected to the mounting base (4) in a transmission manner, and is capable of driving the mounting base (4) to rotate; The positioning mechanism includes a positioning component (10) and a five-way pneumatic structure (11). The positioning component (10) is used to fix one end of the middle tube (12), and the five-way pneumatic structure (11) is fixedly installed on the support frame (1) and used to fix the other end of the middle tube (12).

2. The electric bicycle front triangle tubing clamp positioning device of claim 1, wherein, The first sliding member includes a first slider (13) and a first nut (14). The first slider (13) is fixedly connected between the second guide rail (3) and the first nut (14). The first guide rail (2) has a first groove along its own length direction. The first nut (14) is slidably disposed in the first groove. The electric bicycle front triangular tube clamping and positioning device also includes a first drive assembly. The first drive assembly includes a first drive motor and a first lead screw. The first nut (14) is threadedly connected to the first lead screw. The first drive motor is drivenly connected to the first lead screw and can drive the first lead screw to rotate.

3. The electric bicycle front triangle tubing clamp positioning device of claim 1, wherein, The second sliding member includes a second slider (15) and a second nut. The second slider (15) is fixedly connected to the second nut. The rotating mechanism is installed on the second slider (15). The second guide rail (3) has a second groove along its own length direction. The second nut is slidably disposed in the second groove. The electric bicycle front triangular tube clamping and positioning device also includes a second drive assembly. The second drive assembly includes a second drive motor and a second lead screw. The second nut is threadedly connected to the second lead screw. The second drive motor is drivenly connected to the second lead screw and can drive the second lead screw to rotate.

4. The electric bicycle front triangle tubing clamp positioning device of claim 1, wherein, The first driving component (7) is a cylinder.

5. The electric bicycle front triangle tubing clamp positioning device of claim 1, wherein, The rotating mechanism includes a second driving member (16) and a turntable (17). The second driving member (16) is fixedly installed on the second sliding member and is tractively connected to the turntable (17) and can drive the turntable (17) to rotate. The mounting base (4) is fixedly connected to the turntable (17).

6. The electric bicycle front triangle tubing clamp positioning device of claim 5, wherein, The rotating mechanism also includes a reinforcing lug (18), which is fixedly connected between the mounting base (4) and the turntable (17).

7. The electric bicycle front triangle tubing clamp positioning device of claim 5, wherein, The second driving component (16) is a servo motor.

8. The electric bicycle front triangle tubing clamp positioning device of any one of claims 1-7, wherein, The positioning component (10) includes a cylinder and a positioning plate. The cylinder is mounted on the support frame (1), and the positioning plate is fixedly connected to the output end of the cylinder. The cylinder can drive the positioning plate to reciprocate so that the positioning plate abuts against one end of the central tube (12).

9. The electric bicycle front triangle tubing clamp positioning device of any one of claims 1-7, wherein, The electric bicycle front triangular tube clamping and positioning device also includes a first position sensor assembly (19) disposed on the support frame (1), the first position sensor assembly (19) being used to detect the position of the front tube (9) in real time.

10. The electric bicycle front triangle tubing clamp positioning device of any one of claims 1-7, wherein, The electric bicycle front triangular tube clamping and positioning device also includes a second position sensor assembly (20) disposed on the support frame (1), the second position sensor assembly (20) being used to detect the position of the middle tube (12) in real time.