Internal spiral spline machining method

By setting up processing devices on ordinary lathes and using the turning thread gear function to achieve efficient machining of internal spiral splines, the problems of complex equipment transformation and high manufacturing cost in the existing technology are solved, and the advantages of simple structure and high working efficiency are provided.

CN119657960APending Publication Date: 2025-03-21JIANGLU MACHINERY & ELECTRONICS GROUP
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Patent Information

Application Number
CN202411621899.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

The prior art lacks an internal spiral spline processing method that is easy to operate and high working efficiency, resulting in complex equipment transformation, high manufacturing cost and narrow use range.

Method used

Using a processing device based on ordinary lathes, through the cooperation of the tool rod and the fixture, the turning thread gear function is used to realize the axis movement of the parts on the lathe and the tool holder and the rotational movement of the tool, and the movement ratio is constructed to cut out the internal spiral spline.

Benefits of technology

It realizes efficient processing of internal spiral splines, has the advantages of simple structure and high working efficiency, and reduces the complexity of equipment transformation and manufacturing costs.

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Abstract

The invention discloses an internal spiral spline machining method. The method comprises the following steps that a cutter bar provided with a blade is installed on a lathe spindle; the part is fixed to a lathe follow rest through a clamp; a gear engaging change gear is matched, and a corresponding gear engaging gear is engaged according to the lead angle of the internal spiral spline; the part is arranged in the clamp positioning sleeve, and the cutter bar penetrates through and extends out of an inner hole of the part; linkage cutting is started, the part moves backwards, the cutter bar rotates, an inner spiral line cutting mark is formed in the inner hole, and then the cutter retracts to adjust out the extension amount of the blade; then linkage cutting is started to continuously circulate until a complete tooth profile is cut off; and indexing is conducted through the clamp, and then the process from the fourth step to the fifth step is repeated till all the tooth profiles of the internal spiral spline are cut out. The turning thread gear engaging function of a center lathe is utilized, a product is fixed to a lathe follow rest to do axial movement, a tool does rotary movement, the two kinds of movement construct the movement ratio, an inner hole spiral track is formed, accordingly, the inner spiral spline is cut, the structure is simple, and the working efficiency is high.
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