Steering handle pipe welding tool clamp

By designing a clamp consisting of an upper clamp, a side clamp, and a main support, combined with a sliding chuck assembly and a lifting structure, the problem of insufficient adaptability of existing clamps to clamping pipes of different models and directions is solved, achieving stable clamping and high-quality welding.

CN224254624UActive Publication Date: 2026-05-19CHONGQING HUAFU MOTORCYCLE SALES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING HUAFU MOTORCYCLE SALES CO LTD
Filing Date
2025-06-20
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing clamps are not very adaptable when clamping and fixing pipes of different sizes and orientations, resulting in insufficient or excessive force on the main pipe components, which affects the welding quality.

Method used

The clamping structure consists of an upper clamp, a side clamp, and a main support. Combined with a sliding chuck assembly and a lifting structure, the clamping mechanism can adapt to the opening and closing amount of the end of main pipe fittings of different sizes by adjusting the lateral distance between the chuck assembly and the limit pin, thus achieving effective clamping.

Benefits of technology

It achieves stable clamping of pipes of different types and orientations, avoids insufficient or excessive force, meets welding process requirements, and improves welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a handlebar pipe welding tool clamp which comprises a frame body provided with a bottom plate, a top plate and side plates symmetrically arranged between the bottom plate and the top plate. The upper pressing clamp is connected to the upper end of the top plate and acts on the outer wall of the middle section of the main pipe fitting. The side pressing clamps are symmetrically arranged on the outer sides of the side plates. The main supports are symmetrically arranged on the two sides of the upper pressing clamp and connected with the upper end of the top plate. The upper pressing clamp, the side pressing clamp and the main support are adopted to effectively clamp and fix the special appearance structure of the main pipe fitting, subsequent welding operation of a robot is facilitated, the side pressing clamp in the technical scheme adopts the chuck assembly which is arranged along the clamping clamp in a sliding mode, and in the process of installing and clamping the main pipe fittings of different models and sizes, the clamping efficiency is greatly improved. The relative transverse distance between the chuck assembly and the limiting pins can be adjusted according to the opening and closing amount of the tail end of the main pipe fitting, so that the abutting pressing head and the two limiting pins effectively limit the degree of freedom of the main pipe fitting.
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Description

Technical Field

[0001] This utility model belongs to the technical field of motorcycle parts processing equipment, specifically relating to a directional handlebar welding fixture. Background Technology

[0002] In the motorcycle manufacturing industry, the handlebar stem mainly consists of the handlebar stem and the handlebar stem mount. The handlebar stem has straight sections at both ends and a curved section in the middle. The middle of this curved section is welded to the top of the handlebar stem mount, which is a round tube. The motorcycle's steering column is inserted into the lower end of the handlebar stem mount and secured with bolts. The rider transmits steering force to the handlebar stem mount and steering column by controlling the straight sections of the handlebar stem, and the steering column controls the forward direction of the motorcycle's front wheel.

[0003] Chinese patent document with application number CN202510212636.0 discloses a welding fixture for bicycle handlebar tube sleeves, including a support station, a positioning mechanism on the support station, a rotating table, multiple positioning seats on the rotating table, the multiple positioning seats forming a positioning area, the positioning area for supporting the handlebar tube, and a clamping jaw on the rotating table, the clamping jaw clamping the sleeve so that the end of the sleeve contacts the middle of the handlebar tube in the positioning area.

[0004] In actual production and processing, tubular components need to be pre-connected to specific parts of the steering handle tube by welding to facilitate the installation of subsequent components such as rearview mirrors, steering columns, and mounting brackets. However, the existing clamping structure is fixed and has weak adaptability to clamping and fixing steering handle tubes of different sizes. In particular, after the opening and closing amount of the end part of the main component changes, there is a mismatch with the side clamp, resulting in insufficient or excessive force on the main component, or even failure to clamp it, which affects the subsequent welding process and quality of the steering handle tube. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A directional pipe welding fixture, comprising:

[0007] The frame has a base plate, a top plate, and side plates symmetrically arranged between the base plate and the top plate;

[0008] The upper clamp is connected to the upper end of the top plate and acts on the outer wall of the middle section of the main component;

[0009] Side clamps, symmetrically arranged on the outside of the side plate;

[0010] The main support is symmetrically arranged on both sides of the upper clamp and connected to the upper end of the top plate;

[0011] The side clamp has a mounting plate connected to the outer side of the side plate at a certain angle, a clamping claw acting on the end of the main component, and a chuck assembly that can be slidably arranged on the clamping claw.

[0012] The chuck assembly includes a rod-shaped member that extends through the clamping claw, one end of which is connected to an abutting pressure head and a lifting structure sleeved on the outer periphery of the rod-shaped member;

[0013] The mounting plate is symmetrically connected with limiting pins located on both sides of the abutting head and acting on the outside of the main component.

[0014] Furthermore, the clamping claw has a strip-shaped through hole.

[0015] Furthermore, the lifting structure includes at least one set of nuts and washers.

[0016] Furthermore, the gasket has inclined side wings on both sides.

[0017] Furthermore, the abutting head is umbrella-shaped or cone-shaped.

[0018] Furthermore, the abutting head is made of an elastic material.

[0019] Furthermore, at least one of the upper clamp and the side clamp has a handle and a linkage mechanism.

[0020] Compared with the prior art, this utility model has the following advantages:

[0021] The use of top clamps, side clamps, and a main support effectively clamps and fixes the unique shape and structure of the main pipe fitting, which is beneficial for subsequent robotic welding operations. In this technical solution, the side clamps employ a chuck assembly that slides along the clamping jaws. When clamping main pipe fittings of different sizes, the relative lateral distance between the chuck assembly and the limiting pins can be adjusted according to the opening and closing amount of the main pipe fitting's end, effectively restricting the degree of freedom of the main pipe fitting through the contact head, the two limiting pins, and the chuck assembly itself. Simultaneously, because the chuck assembly has a lifting structure, the distance between the contact head and the outer wall of the main pipe fitting can be adaptively adjusted according to its diameter, thus avoiding insufficient or excessive force on the main pipe fitting, or even failure to clamp it, meeting the overall welding process requirements for directional pipe control. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram illustrating a specific embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram illustrating the main structural features of a specific embodiment of the present utility model;

[0024] Figure 3This is a schematic diagram illustrating a partial structure of the side clamp in a specific embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram illustrating the exploded structure of the side-pressure clamp in a specific embodiment of the present invention;

[0026] The reference numerals in the accompanying drawings include:

[0027] 10. Base plate, 11. Top plate, 12. Side plate, 3. Upper clamp, 4. Side clamp, 40. Handle, 41. Linkage mechanism, 42. Mounting plate, 420. Bolt, 43. Clamping claw, 430. Strip-shaped through hole, 44. Rod-shaped part, 45. Abutment head, 46. Nut, 47. Washer, 470. Inclined side wing, 5. Main support, 7. Limit pin, 8. Main pipe, 9. Welded part. Detailed Implementation

[0028] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" appear, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, 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 describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] like Figure 1 - Figure 4 As shown, a directional pipe welding fixture of the present invention includes a frame, an upper clamp 3, a side clamp 4, a main support 5, and a telescopic assembly.

[0031] The frame includes a base plate 10, a top plate 11, and side plates 12 symmetrically arranged between the base plate 10 and the top plate 11.

[0032] The upper clamp 3 is connected to the upper end of the top plate 11 and acts on the outer wall of the middle section of the main pipe 8;

[0033] The side clamps 4 are symmetrically connected to the outside of the side plate 12 at a certain angle. The side clamps 4 are used to clamp the end of the main pipe 8.

[0034] The main support 5 is symmetrically arranged on both sides of the upper clamp 3 and connected to the upper end of the top plate 11. The main support 5 provides upward support for the main pipe 8.

[0035] The use of upper clamp 3, side clamp 4 and main support 5 can effectively clamp and fix the unique shape structure of the main component 8, which is beneficial to the subsequent welding operation of the robot. The operator can conveniently and quickly place the part to be welded 9 in the predetermined position on the side of the main component 8.

[0036] At least one of the upper clamp 3 and the side clamp 4 includes a handle 40 and a linkage mechanism 41. The connection method of the handle 40 and the linkage mechanism 41 can use existing technology and is easy to implement. It is not within the protection scope of this application. Therefore, it has at least the beneficial effects brought by the technical solution of the above embodiment, and will not be described in detail here.

[0037] Furthermore, the side clamp 4 in this embodiment has a pair of limiting pins 7 arranged on the outside of the main pipe member 8. This arrangement restricts the lateral degree of freedom of the main pipe member 8 when it is clamped by the side clamp 4.

[0038] The side clamp 4 includes a mounting plate 42 connected at a certain angle to the outer side of the side plate 12, a clamping claw 43 acting on the end of the main pipe 8, and a chuck assembly slidably disposed on the clamping claw 43. A limit pin 7 is provided on the mounting plate 42.

[0039] The mounting plate 42 is connected to the side plate 12 by bolts 420.

[0040] The use of upper clamp 3, side clamp 4, and main support 5 can effectively clamp and fix the unique shape structure of the main pipe component 8, which is beneficial to the subsequent welding operation of the robot. Among them, the side clamp 4 in this technical solution adopts a chuck assembly that slides along the clamping clamp. In the installation and clamping of main pipe components 8 of different sizes, the relative lateral distance between the chuck assembly and the limiting pin 7 can be adjusted according to the opening and closing amount of the end of the main pipe component 8, so that the abutting pressure head 45 and the two limiting pins 7 can effectively restrict the degree of freedom of the main pipe component 8.

[0041] Specifically, the clamping claw 43 has a strip-shaped through hole 430, and the rod-shaped member 44 vertically passes through the strip-shaped through hole 430.

[0042] The chuck assembly includes a rod-shaped member 44 that passes through the clamping claw 43, one end of the rod-shaped member 44 is connected to an abutting pressure head 45 and a lifting structure sleeved on the outer periphery of the rod-shaped member 44;

[0043] Because the clamp assembly has a lifting structure, the distance between the pressure head 45 and the outer wall of the main pipe 8 can be adjusted according to the different diameters of the main pipe 8, thereby avoiding insufficient or excessive force on the main pipe 8, or even failure to clamp it, and meeting the welding process requirements of the entire directional pipe.

[0044] The lifting structure includes at least one set of nuts 46 and washers 47 that are threadedly connected to the rod-shaped member 44. The distribution and quantity of the nuts 46 and washers 47 can be found in [reference needed]. Figure 3 , Figure 4 .

[0045] The pad 47 has inclined side wings 470 on both sides. The inclined side wings 470 make the pad 47 on both sides of the clamping claw 43 relatively concave and slide on the outer periphery of the clamping claw 43. This arrangement makes the chuck assembly smoother during lateral sliding adjustment and also reduces the possibility of wobbling of the rod 44 and the pressure head 45.

[0046] Specifically, the structure of the abutting head 45 can be umbrella-shaped, conical, or other structures, without specific limitations. The abutting head 45 can be made of an elastic material, such as rubber, so that its outer arm is not easily worn or scratched when the main pipe 8 is clamped.

[0047] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A directional pipe welding fixture, characterized in that, include: The frame has a base plate (10), a top plate (11), and side plates (12) symmetrically arranged between the base plate (10) and the top plate (11); The upper clamp (3) is connected to the upper end of the top plate (11) and acts on the outer wall of the middle section of the main pipe (8); Side clamps (4) are symmetrically arranged on the outside of the side plate (12); The main support (5) is symmetrically arranged on both sides of the upper clamp (3) and connected to the upper end of the top plate (11); The side clamp (4) has a mounting plate (42) connected at a certain angle to the outside of the side plate (12), a clamping claw (43) acting on the end of the main pipe (8), and a chuck assembly that can be slidably arranged on the clamping claw (43). The chuck assembly includes a rod-shaped member (44) that passes through the clamping claw (43), one end of which is connected to an abutting pressure head (45) and a lifting structure sleeved on the outer periphery of the rod-shaped member (44); The mounting plate (42) is symmetrically connected with limiting pins (7) that are disposed on both sides of the abutting head (45) and act on the outside of the main component (8).

2. The directional pipe welding fixture as described in claim 1, characterized in that: The clamping claw (43) has a strip-shaped through hole (430).

3. A directional pipe welding fixture as described in claim 1 or 2, characterized in that: The lifting structure includes at least one set of nuts (46) and washers (47).

4. The directional pipe welding fixture as described in claim 3, characterized in that: The gasket (47) has inclined side wings (470) on both sides.

5. A directional pipe welding fixture as described in claim 1, 2, or 4, characterized in that: The abutting head (45) is umbrella-shaped or conical.

6. The directional tube welding fixture as described in claim 5, characterized in that: The abutting head (45) is made of elastic material.

7. A directional pipe welding fixture as described in claim 1, 2, 4, or 6, characterized in that: At least one of the upper clamp (3) and the side clamp (4) has a handle (40) and a linkage mechanism (41).