A handrail welding fixture

CN121715787BActive Publication Date: 2026-05-26NINGBO JIFENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO JIFENG TECH CO LTD
Filing Date
2026-02-05
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In the existing technology, the welding positioning accuracy of the armrest and seat fixing block is low, the repeatability is poor, and cumulative errors are easy to occur, which affects the assembly efficiency and riding comfort. In addition, the existing positioning block has large processing errors, resulting in poor welding quality.

Method used

A handrail welding fixture was designed, including a fixture table, a positioning mechanism, an anti-detachment mechanism, and an auxiliary mechanism. The first and second positioning beads are precisely fitted with the reference surface, and bidirectional positioning under a single driving force is achieved through the drive rod and cylinder. Combined with the guide hole and the tight-fitting edge structure, the position accuracy and stability of the fixing block are ensured during the welding process.

Benefits of technology

It improves welding positioning accuracy, ensures product quality consistency, extends tooling life, is suitable for automated production lines, simplifies operation procedures, and improves welding repeatability and overall welding quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121715787B_ABST
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Abstract

This invention belongs to the field of welding fixtures and provides a handrail welding fixture, including: a fixture table; a positioning mechanism, an anti-detachment mechanism, and an auxiliary mechanism. The auxiliary mechanism includes a reference block, a first positioning bead, and a second positioning bead. On the reference block, a first reference surface is provided on the side opposite to the first positioning bead, and a second reference surface is provided on the side opposite to the second positioning bead. Both the first and second positioning beads are movably disposed within the reference block and can abut against the inner wall of a reference hole. Compared with the prior art, the advantage of this invention is that by using a single driving source to drive the first and second positioning beads against the inner wall of the reference hole, the first and second positioning surfaces are precisely fitted with the first and second reference surfaces, respectively. This ensures that the fixed block is accurately positioned and without deviation during welding, avoiding the impact of the reference block's own processing errors on the overall positioning accuracy of the fixed block. This significantly improves the welding positioning accuracy of the handrail and ensures consistent product quality.
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