Production machining process for automobile half shaft

Abstract

The invention discloses a production machining process for an automobile half shaft. The process is characterized by including the following steps that (1) materials are selected and sheared, and meanwhile working allowance is determined, so that subsequent machining operation is facilitated; (2) die forging is carried out on the half shaft on an air hammer, and a swing grinder is used for swing-grinding of a cap; (3) the half shaft is subjected to shot blasting; (4) a blank rod is straightened, and the perpendicularity is guaranteed; (5) the small end is roughly turned, and rough turning and finish turning are carried out through a hexagonal capstan lathe or a profile lathe; (6) a large hole is turned, end face flattening is a key procedure for increasing the half shaft production line productivity, and end face milling through a plunge-cut method is good; (7) the large end is subjected to rough turning and finish turning, and the small end is subjected to finish turning; (8) a spline is subjected to cold rolling; and (9) thermal treatment is carried out on the half shaft, heating is started until the set temperature of an electric furnace reaches 840-860 DEG C, chlorine gas is led to the furnace for clearing the furnace for about 30 min, the protective atmosphere is led into the furnace, heat preservation is conducted for 60 min, cleaning is conducted with half-quenching oil at the temperature of 30-80 DEG C, tempering is carried out at the temperature of 550-650 DEG C, heat preservation is conducted for 120 min after tempering, and discharging is conducted after cooling.

Description

technical field [0001] The invention relates to a production and processing technology of an automobile half shaft. Background technique [0002] Cars can be seen everywhere. Cars have an important influence in today's society. People can't do without cars all the time. It's hard to imagine a world without cars. Therefore, it is of great significance to study automobiles. The half shaft is an important part of the automobile transmission system. The half shaft is used to transmit the power output by the differential half shaft gear to the driving wheel or the wheel reducer. The outer end of the half shaft is connected to the hub, and the inner end of the half shaft is The splines are connected to the half-shaft gear. The half-shaft gear only transmits the torque to the half-shaft when it is working. The inner end of the half-shaft is only subjected to torque but not bending moment. At present, the production and processing technology of automobile half shafts is relatively...

AI Technical Summary

Problems solved by technology

At present, the production and processing technology of automobile half shafts is relatively complicated, and there is no unified specification and standard, resulting in uneven quality of the produced half shafts. Many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the products The market competitiveness is not high

For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences