CNC Zhanghe Contour Broaching Machine

Abstract

The utility model relates to a numerically controlled tensioning type external broaching machine, which belongs to the technical field of machine tools. It is composed of a broach installed on the bed, a steady frame, a traction mechanism and a numerical control system. The main movement of broaching is the movement of the workpiece and the rest of the tool. The broaches are composed of three parts: the tool rest is fixed on the machine bed, which contains a number of chutes perpendicular to the moving direction of the workpiece; each cutter body is divided into two symmetrical parts, installed in the chute of the tool rest, It can be opened and closed along the chute; the blade is clamped on the cutter body through the positioning and clamping structure, and can be opened and closed together with the cutter body to complete broaching and avoidance of the boss. The movement of the workpiece is pulled by the traction mechanism, which is composed of a hydraulic oil motor, a roller, and a steel cable, and is flexible. The traction mechanism is arranged at one end of the bed. The invention has a simple structure, can efficiently realize the broaching process of the slender shaft mechanical parts with complex outlines and bosses, has convenient chip removal, and prolongs the service life of the tool.

Description

technical field [0001] The invention relates to a machine tool for processing the inner and outer forming surfaces of some mechanical parts with a broach, in particular to a broaching machine for broaching the outer profile of slender shaft parts with a numerically controlled opening and closing broach, which belongs to the technical field of machine tools. Background technique [0002] A broaching machine is a machine tool that uses a broach to process the inner and outer forming surfaces of some mechanical parts. It is mainly composed of a bed, a tool holder, a tool, traction components, and an electrical control system. The broaching machine generally adopts hydraulic transmission. According to the different nature of work, broaching machines can be divided into inner broaching machines and outer broaching machines. In the manufacturing industry, there are a large number of inner and outer surfaces of parts that need to be processed. Broaching has always used a broaching ...

AI Technical Summary

Problems solved by technology

[0003] The limitations of the existing general-purpose broaching process mainly lie in: blind holes or contours with bosses cannot be processed; the broach structure is complex

The broaching process and the broach have two most notable features: 1. The main movement of the broaching process is realized by the movement of the broach, resulting in a larger structure of the broaching machine; 2. The multi-tooth broach is a fixed structure, so that In the field of practical application, a large number of shaft parts have special shapes but have bosses, the traditional broaching method cannot be applied, and such parts can only be processed by low-efficiency milling and other manufacturing processes

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