Spline housing machining process

Abstract

The invention belongs to the technical field of metal mechanical processing, and particularly relates to a spline housing machining process. The process comprises the following steps that S1, a bar iscut into equal-specification raw materials; S2, the raw materials are machined, and a spline is inserted; S3, a semi-finished product is subjected to external circle polishing, and a spline polishingdevice is used for carrying out polishing on the spline on the semi-finished product inner circle face; S4, nitriding treatment is carried out, the nitriding temperature is kept at 900 DEG C, and after nitriding is finished, an organic solution is used for quenching; and S5, an anti-rust agent is sprayed, and a finished product is obtained. The device can sufficiently grind and polish a spline sleeve, burrs and defects in the spline sleeve are removed, the service life of the spline sleeve can be prolonged, meanwhile, chippings can be cleaned and collected in time, a work face is prevented from being scratched, quality and the service life are not affected, meanwhile, the collected chippings can be convenient to recycle, and waste is avoided.

Description

technical field [0001] The invention belongs to the technical field of metal machining, in particular to a spline sleeve processing technology. Background technique [0002] The spline sleeve is a high-speed, heavy-supported link body, so its comprehensive mechanical properties are crucial, including wear resistance, yield strength, etc. Cutting is required in the traditional processing process, and the processing time is also long. At the same time, the processed surface is prone to burrs and various surface defects. These burrs and defects will affect the quality and service life of the spline sleeve. Therefore, it is necessary to effectively , Reliable method to remove burrs and defects on spline sleeves. [0003] There are also some schemes in the prior art, such as the Chinese patent with the application number CN201710924370.8, the first step: select a round steel material of 20CrMnTi to blank to form a blank; the second step: adjust the workpiece after rough machinin...

AI Technical Summary

Problems solved by technology

Cutting is required in the traditional processing process, and the processing time is also long. At the same time, the processed surface is prone to burrs and various surface defects. These burrs and defects will affect the quality and service life of the spline sleeve. Therefore, it is necessary to effectively , Reliable method to remove burrs and defects on spline sleeves

[0003] There are also some schemes in the prior art, such as the Chinese patent with the application number CN201710924370.8, the first step: select a round steel material of 20CrMnTi to blank to form a blank; the second step: adjust the workpiece after rough machining Quality treatment, the workpiece is slowly heated to 800 ° C, and then annealed; the third step: the annealed workpiece is finished, and the spline is inserted; the fourth step: the finished spline sleeve is heat treated; the fifth step: The workpiece after carbonitriding is subjected to sandblasting treatment. Although the mechanical properties of the workpiece are greatly improved after treatment, the mechanical performance indicators such as fatigue strength, wear resistance, and yield strength of the workpiece are significantly improved compared with the traditional processing technology. However, in the processing In the process, there is no treatment step to remove the surface burrs and surface defects of the workpiece, which may easily cause the workpiece to be damaged during use due to burrs and surface defects, reduce the service life of the workpiece, and increase the cost

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