Post processor development for optimize work of machines with numerical program control
Developing a software module for machine tools with power program control, which meets all the requirements for the mechanical, milling processing of heavy alloys is described in this work. The relevance of the topic for this development is the need to improve and accelerate the machining of parts, through the introduction of the developed software module. The purpose of this work is the development of a software module for the automation of work on machine tools with numerical program control for the enterprise LLC Samara Special Alloys Plant. The object of the study is the workshop for machining parts, equipped with machine tools with numerical control. The subject of research is the process of analyzing systems with numerical program control and the optimal way to implement a software module (postprocessor). The work discusses the process of creating a postprocessor and control program for machine tools with numerical control. A postprocessor is a module that converts a file of toolpaths and technological commands, calculated by a CAM or CAD / CAM system processor, into a control program file in strict accordance with the manual programming technique requirements of a specific machine-CNC system. The following software was used to develop a software module for optimization on work on CNC machines: CAD / CAM system NX Unigraphics 10 (the system is needed to create a 3D model of the future part and create control programs for the CNC machine), PostBuilder (a postprocessor generator, the system is needed to create a 3D model of the future part and create control programs for a CNC machine), Cimko Edit (necessary for virtual modeling, finished control program demonstration). The developed postprocessor main feature is that the control program code is recorded in cycles. During cyclic operation, the movement speed of the tool increases, smoothness increases, and the roughness of the workpiece decreases. Cycles force the tool to move smoothly over a given radius. In the individual coordinates case, the tool moves intermittently, therefore the tool remain on the part traces. In conclusion, a comparative analysis of the standard and developed in this work modules. The developed postprocessor allows to make correct, more convenient control programs. From an economic point of view, the postprocessor allows you to reduce the cost of tools and materials thanks to a flexible control program algorithm.