Machining method for multi-tooth part and cutting tool for multi-tooth part

Abstract

The invention discloses a machining method for a multi-tooth part. According to the machining method, profiling machining of a tooth profile of the multi-tooth part is realized through continuous rotation of a tool with tool teeth and a workpiece to be machined, the advantages of generating machining and profiling machining are combined, the machining efficiency and the machining precision are ensured, meanwhile, the requirement for the tool is lowered, and then the machining cost of the multi-tooth part is greatly lowered, and the machining method can be applied to machining of splines and gears with low tooth profile precision requirements and can also be applied to early-stage rough machining of the splines and the gears with high precision. The invention further discloses the special cutting tool for the multi-tooth part. The cutting tool is mainly comprises a tool bar and at least two blades, wherein the two blades are arranged in the same circumferential direction of the tool bar. The cutting tool has the advantages that the structure is simple, and the manufacturing cost is low; and the rough cutting blades and the fine cutting blades are designed, so that the obtained multi-tooth part can meet a certain precision requirement.

Description

technical field [0001] The invention belongs to the technical field of multi-tooth parts processing, relates to the processing of multi-tooth parts with specific contours, and in particular relates to a multi-tooth part processing method and a special multi-tooth part cutting tool. Background technique [0002] The machining of multi-tooth parts refers to mechanically obtaining multi-tooth parts with specific contours (such as figure 1 The machining process of the involute gear shown). At present, the processing methods of multi-tooth parts can be divided into two methods: generation method and profiling method: (1) Generation processing is based on the principle of involute generation and meshing. The workpiece surface is enveloped to form a multi-toothed part with a specific contour. For example, the tooth shape of the hobbing gear is a straight line. After the generating movement, the workpiece surface is enveloped to form an involute tooth shape. Common multi-tooth par...

AI Technical Summary

Problems solved by technology

However, profiling has the following disadvantages: 1) It cannot be processed continuously, but can only be processed one by one, so the processing efficiency is low; 2) The precision of the processed multi-tooth parts is low, because the tooth profile accuracy depends on the tool accuracy, especially It is the cumulative error of multi-tooth parts that depends on the accuracy of the machine tool

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