Automobile exhaust pipe welding fixture

By designing a welding fixture for automotive exhaust pipes with a worm gear mechanism and transmission mechanism, the problem of existing fixtures being unable to flexibly clamp diverse exhaust pipes has been solved, enabling flexible alignment and fixation of exhaust pipes and improving welding efficiency and precision.

CN224373273UActive Publication Date: 2026-06-19CHENGDU TIANYUAN MOLD TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU TIANYUAN MOLD TECH
Filing Date
2025-06-10
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing welding fixtures can only clamp one pipe at a time, making pipe butt welding inconvenient. The clamping direction and angle are fixed, making it difficult to meet the diverse needs of different vehicle models.

Method used

A welding fixture for automotive exhaust pipes was designed. It adopts a worm gear mechanism and a transmission mechanism, combined with a threaded rod and a sliding plate structure, to achieve flexible adjustment of the angle and position of the exhaust pipe. The worm gear and worm rod drive the fixture to rotate, the screw drives the fixture to rise and fall, and the sliding plate cooperates with the base plate to clamp the pipe.

Benefits of technology

It enables flexible alignment and fixation of exhaust pipes, facilitating welding needs for diverse vehicle models and improving welding efficiency and precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a welding fixture for automotive exhaust pipes, comprising: a base plate, a cylindrical seat fixedly connected to the upper left side of the base plate, a connecting shaft disposed inside the cylindrical seat, a worm gear fixedly connected below the connecting shaft, a worm gear rod disposed to the right side of the worm gear, a first support rod disposed on the upper right side of the base plate, a beam rod disposed at the connection between the first support rod and the second support rod, and a threaded sleeve disposed in the middle of the beam rod; and a fixture body, which is disposed above both the connecting shaft and the second support rod, and includes a base plate, a sliding plate, and a threaded rod. A guide groove is formed inside the top of the base plate, and a sliding plate is disposed above the base plate. This automotive exhaust pipe welding fixture facilitates adjustment of the exhaust pipe's angle and height, facilitates pipe alignment, and, through the two fixture bodies on the left and right sides, facilitates the alignment, clamping, and fixing of the exhaust pipe, thus facilitating the welding of the exhaust pipe.
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