A Welding Fixture for a Passenger Car Cabin Door Frame

Abstract

The invention relates to a welding fixture for a cabin door frame of a passenger car, comprising a BASE plate and a movable positioning unit, the movable positioning unit is installed on the BASE plate, the BASE plate includes a channel steel chassis and a steel plate, and the steel plate is placed On the channel steel chassis, the steel plate is provided with a linear slide rail, and the movable positioning unit slides on the linear slide rail, and the movable positioning unit includes a first-type movable positioning unit, a second-type movable positioning Unit and the third type of movable positioning unit, for different skeleton weldments, suitable welding fixtures can be quickly constructed by replacing different types of movable positioning units. Compared with the prior art, the invention has the advantages of wide application range, safety and reliability, convenient operation and high production efficiency.

Description

technical field [0001] The invention relates to the field of automobile welding, in particular to a welding jig for a cabin door frame of a passenger car. Background technique [0002] The frame of the cabin door of the bus is formed by aluminum profiles of various specifications and then assembled and welded on the welding fixture. Due to the different structures of the body frame and chassis of various models, the width and size of the hatch are different, and the size of the frame is also varied. In order to ensure its size, a large number of special welding fixtures are designed and manufactured for different frames. . [0003] For passenger cars with the characteristics of small batches and multiple types of hatch frames, this method of investing a large amount of special welding fixtures will not only greatly increase the investment cost, but also because the fixtures occupy a large area of ​​the site, the fixtures can only be stacked together. The models put into pr...

AI Technical Summary

Problems solved by technology

[0003] For passenger cars with the characteristics of small batches and multiple types of hatch frames, this method of investing a large amount of special welding fixtures will not only greatly increase the investment cost, but also because the fixtures occupy a large area of ​​the site, they can only be stacked together. The models put into production are changed frequently, and the fixtures will be seriously deformed after repeated lifting and moving. The workload of each adjustment is heavy, resulting in low production efficiency, which eventually leads to a decline in the quality of the hatch frame.

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