Combined cutter for machining of center hole of rear steering knuckle and machining method of combined cutter

Abstract

The invention relates to the field of machining, and provides a combined cutter for machining of a center hole of a rear steering knuckle and a machining method of the combined cutter. The combined cutter for machining of the center hole of the rear steering knuckle comprises a cutter body and a blade assembly. The cutter body comprises a cutter handle, a cutter rod and a stepped cutter bit. At least two cutter teeth arranged circumferentially and evenly are formed on the stepped cutter bit, the at least two cutter teeth extend in the axial direction of the combined cutter for machining of thecenter hole of the rear steering knuckle, and a chip breaker groove is formed between any two adjacent cutter teeth in a concaved manner. The blade assembly comprises multiple blades and comprises the at least two sets of blades corresponding to the at least two cutter teeth. Each set of blades is mounted on the mounting plane of the circumferential side face of the corresponding cutter tooth inthe axial direction. The projections of all the blades in the axial direction are continuous and cover the machining section of the center hole of the rear steering knuckle.

Description

technical field [0001] The invention relates to the field of machining, and more specifically relates to a combined tool for machining the center hole of a rear steering knuckle and a machining method thereof. Background technique [0002] The center hole of the rear steering knuckle of an automobile is often composed of various processing features, such as Figure 1A with 1B The central hole of the rear steering knuckle of an automobile company shown in , consists of 3 series holes with different apertures, 2 planes, 2 arc angles with different sizes, 1 45° chamfer and 1 30° chamfer. Each feature is processed with the corresponding tool, even if some feature tools can be compounded, the processing of these features requires such Figures 2A-2F Shown are 3 boring cutters, 1 face milling cutter, 2 chamfering cutters. The whole machining process needs to change the tool 6 times, the machining process needs to feed the tool from two directions, and the worktable needs to rot...

AI Technical Summary

Problems solved by technology

The use of single-purpose cutting tools and the processing method of sub-sequence and sub-steps lead to cumbersome processing procedures, increase the workload of processing, and prolong the processing cycle of a single piece, which not only increases costs but also wastes resources.

In addition, if the number of tools is large, the cost of the tool will be high, and the capacity of the tool magazine of the machine tool must be increased, and the cost of the machine tool must be increased.

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