A sleeve and bridge arm press-fitting fixture and plug welding process

Abstract

The invention discloses a casing pipe and bridge arm press-fitting clamp which comprises an upper base plate and a lower base plate for supporting workpieces. The two sides of the upper base plate and the two sides of the lower base plate are connected through two guide columns respectively. The upper base plate is installed below a pressure head of an oil press, and the pressure head of the oil press drives the upper base plate to move towards the lower base plate along the guide columns. An upper positioning mandrel and a positioning sleeve are arranged in the middle of the lower portion of the upper base plate. A casing pipe positioning device is formed between a positioning convex core of the upper positioning mandrel and the inner wall of the positioning sleeve. The lower base plate is arranged on an oil press base. A bridge arm pressing mechanism is arranged on one side of the lower base plate. A lower positioning mandrel is arranged in the middle of the lower base plate. The bridge arm pressing mechanism and a positioning convex core of the lower positioning mandrel form a bridge arm positioning device. The upper positioning mandrel and the lower positioning mandrel are located on the same axis. By means of the casing pipe and bridge arm press-fitting clamp, the dimensional accuracy of bridge arms and casing pipes and the stability of the bridge arms are ensured; and press fitting and plug welding are completed at a time, so that the machining efficiency is greatly improved, and labor intensity of workers is relieved.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a sleeve pipe and bridge arm press fitting fixture and a plug welding process. Background technique [0002] The design structure of automobiles is becoming more and more compact and the functions are perfect. Some important parts on the drive front and rear axles have complex shapes, such as automobile bridge arms, and the press-fitting equipment used for assembling such parts has simple structure, single performance, and high production efficiency. Low, the equipment is completely controlled by manual, the qualified rate of one press is low, and the quality of press is greatly affected by human factors. At the same time, some parts use alloy materials to improve the strength, and their welding performance is poor; press fitting and plug welding need to be carried out step by step, which makes the whole processing process cumbersome and requires multiple clamping...

AI Technical Summary

Problems solved by technology

[0002] The design structure of automobiles is becoming more and more compact and the functions are perfect. Some important parts on the drive front and rear axles have complex shapes, such as automobile bridge arms, and the press-fitting equipment used for assembling such parts has simple structure, single performance, and high production efficiency. Low, the equipment is completely controlled by manual, the pass rate of one press is low, and the quality of press is greatly affected by human factors

At the same time, some parts use alloy materials to improve the strength, and their welding performance is poor; press fitting and plug welding need to be carried out step by step, which makes the whole processing process cumbersome and requires multiple clamping, which greatly affects the production efficiency of the enterprise

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