Machining process of rear square axle housing of automobile

Abstract

The invention discloses a machining process of a rear square axle housing of an automobile. The machining process of the rear square axle housing of the automobile is characterized in that the machining process comprises the following steps of (1) blanking, namely shearing large plates into needed strip with a plate shearing machine; (2) blanking the housing once and punching, namely, performing one-time machining of blanking and punching on a punch by utilizing the blanking and punching compound die, and finishing blanking and punching processes of the upper and lower housings by using a set of dies and changing the punch head with larger and smaller holes, wherein the upper housing uses the smaller punch head and the lower housing the larger punch head; and (3) press molding, performing one-time press molding on an oil press by using the die set and finishing workpiece shape of the upper housing or the lower housing. By adopting three steps of processes, the machining process greatly shortens making cycle, dramatically reduces cost of materials, doubles production efficiency and greatly reduces production cost.

Description

technical field [0001] The invention relates to a processing technology for a square axle shell piece of an automobile rear axle shell. Background technique [0002] The square axle shell of the automobile rear axle housing is the main part of the automobile rear axle housing (see attached figure 1 ), the rear axle housing of the automobile wheel is welded, and the upper and lower shells (4, 13) are used to connect the half shaft bushing (1), the oil seal sleeve (2), the flange (3), the line clamp (5), and the Shock support assembly (6), air release seat (7), oil discharge seat (8), triangular plate (9), oil pipe support (10), shell cover (11), reinforcement ring (12), steel plate support (14) Connected by gas shielded welding; see appendix figure 2 It can be understood that the upper and lower shells (4, 13) are welded into a square tube shape (the origin of the name of the square bridge), and the connection mode with the shock absorbing support assembly (6) and the stee...

AI Technical Summary

Problems solved by technology

[0015] 1. High cost:

[0016] a. Since the existing old process adopts blanking first and then edge trimming, the process requires a large processing allowance around the product, and the general waste accounts for 30% of the total weight of the workpiece, resulting in a lot of waste of materials;

[0017] b. Due to the many processes, there are many costs such as labor costs and mold costs

[0018] 2. In terms of long production cycle: due to many processes, and individual processes are difficult to operate and dangerous, the production efficiency is greatly reduced, resulting in a substantial increase in the cost of the workpiece

[0019] It is not difficult to see from the above analysis that the existing old processing technology of square bridge shells has resulted in high cost of parts, thus affecting the market competitiveness of the entire product.

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