Five-axis linkage numerical control (NC) machining post processor and processing method thereof

Abstract

The invention discloses a five-axis linkage numerical control (NC) machining post processor and a processing method thereof, and relates to a post processor for an NC machining program and a processing method. The processor comprises computer program software which is used for processing a cutter location source file generated by a workpiece shape characteristic and a machining process, wherein the computer program software comprises a file management function module, a cutter management function module, a postprocessing function module, an NC file modification function module, a G code simulation function module, an NC file transmission function module, a coordinate system offset function module, an error compensation function module, a speed modification function module, a programming mode function module and a cutter-lifting and programming staring point function module. The processing method comprises the steps of setting a file, arranging a cutter, processing a programming mode, processing data of machine tool motion parameters, processing data of cutter dynamic cutting speed, outputting a G code file and the like. By the processor and the processing method, machining dynamic speed, speed compensation, non-linear error compensation and analog simulation of G code five-axis linkage can be realized.

Description

technical field [0001] The invention relates to a post-processor and a processing method of a numerical control machining program, in particular to a post-processor and a post-processing method of a numerical control machining program for machining special-shaped parts such as impellers and blades on a five-axis linkage numerical control machine tool. Background technique [0002] Five-axis linkage CNC machining technology is a high-tech and high-precision technology, which is specially used for processing complex curved surface parts. Heavily influential. Now, it is generally believed that five-axis linkage numerical control technology is the only means to solve the processing of parts such as impellers, blades, marine propellers, heavy generator rotors, steam turbine rotors, and large diesel engine crankshafts. Over the years, western developed countries have imposed a technical blockade on my country, and the five-axis linkage equipment and technology have not been provi...

AI Technical Summary

Problems solved by technology

Users can only complete the NC program generation of most machine tools through these post-processing systems, but when encountering some special NC systems or CNC machine tools, they need to modify the database models provided by these post-processing systems. For this, users It is often difficult to handle, and it is impossible to develop functions such as motion error verification and feed speed verification

Although we can use 3D software to generate a program for a seldom-used five-axis machine tool, the processing programs for other types of five-axis machine tools require professional companies to customize post-processing or post-processing software for us, which costs a lot

For this reason, some people in my country have developed some post-processing methods and control systems for CNC machining, such as a four-axis linkage CNC machining described in the Chinese patent No. ZL200410081463. The post-processing method and its control system, this post-processing method and its control system are only suitable for four-axis linkage CNC processing machine tools, and the functions cannot meet the following functions: nonlinear error compensation, NC file modification function, G code simulation function , Compatible with a variety of CAM software tool position source files, NC file transfer function

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