Numerical control program post-processing method for five-coordinate linkage machine tools

Abstract

The invention discloses a numerical control program post-processing method for five-coordinate linkage machine tools, which includes the following steps: (1) a machine tool geometric error compensation parameter method is adopted to compile a numerical control program, so that codes can be universally used on machine tools with like systems; (2) the numerical control program points generated by the machine tool software are reversely calculated into the points in a programming coordinate system, the points in the programming coordinate system are then normally calculated into machine tools with other systems, and therefore the codes are universally used on machine tools with various systems. The method solves the problem that programs complied in the conventional mode cannot be universally used, and also solves the contradiction between the RPCP (Rotation Around Part Center Point) and RTCP (Rotation Around Tool Center Point) programming modes and the conventional program-debugging habit of workshop workers, debugging is simple, rapid and reliable, and mistakes are prevented.

Description

Technical field: [0001] The invention relates to a post-processing method of a numerical control program of a five-coordinate linkage machine tool, which belongs to the technical field of numerical control processing. technical background: [0002] For special-shaped workpieces with complex profiles, such as steam turbine blades, it is necessary to use five-coordinate linkage machine tools to process them. When the batch of workpieces is large, it is necessary to use many machine tools to process them at the same time. For processing enterprises, it is necessary to consider meeting the needs of processing various special-shaped workpieces, and configure five-coordinate linkage machine tools in a targeted manner, such as Siemens system, FANUC system, MAZAK system, etc. The machine tools of each system have multiple structures. It may be equipped with too many five-coordinate linkage machine tools of the same system and structure, so we have to use five-coordinate linkage mach...

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Problems solved by technology

But it also brings a new problem, that is, the CNC program coordinates are rotated synchronously with the turntable of the bed. When A=0 and A=180, the direction of program fine-tuning is just opposite. When A is between 0-180, the program cannot be fine-tuned in one direction. It must be converted by trigonometric functions, and several coordinates can be adjusted at the same time. The adjustment efficiency is very low, the effective utilization time of the machine tool is reduced, and the processing cost is increased. Moreover, the machine operator cannot judge the adjustment direction, and it is easy to make mistakes, resulting in the scrapping of the workpiece.

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