Numerical control opening and closing profile broaching machine

Abstract

The invention relates to a numerical control opening and closing profile broaching machine, and belongs to the technical field of machine tools, which consists of a broach, a center frame, a traction mechanism, a numerical control system and the like which are all arranged on a broaching machine body. The main broaching motion is that a workpiece moves and the tool is static. The broach consists of a tool holder, tool bodies and a blade, wherein the tool holder is fixed on the broaching machine body of the machine tool and comprises a plurality of sliding grooves vertical to the moving direction of the workpiece; each tool body is divided into two symmetrical parts, is arranged in the sliding groove of the tool holder and can perform opening and closing motion along the sliding groove; the blade is clamped on the tool body through a positioning and clamping structure and can perform opening and closing motion along with the tool body to complete broaching and motion of avoiding bosses. The moving of the workpiece is drawn by the traction mechanism. The traction mechanism consists of a hydraulic oil motor, a roller and a steel rope and has flexibility. The traction mechanism is arranged at one end of the tool body. The numerical control opening and closing profile broaching machine has simple structure, can efficiently realize the broaching processing of the slender axis machinery parts with complex profiles and the bosses, conveniently discharges chips 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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