Some aspects of designing parts and developing a control program in a CAD / CAM system affecting the total error of product production on a CNC milling machine.

Keywords: CNC milling machine, CAD/CAM-system, cutting modes, milling modes, iMachining module, controlling program.

Abstract

The article is devoted to the analysis of the relationship between the design of parts in a CAD / CAM system and their manufacture on CNC milling machines. The reasons for the occurrence of errors in the manufacture of parts on CNC milling machines and ways of eliminating them not only in the process of milling the part on production equipment, but also at the stages of design design, development of control programs (PC) for the machining center and calculation of cutting modes and their relationship are considered. The proposed structure of the total manufacturing error of parts, which affects the overall quality of the product, on a CNC machine. It is noted that the total error consists of the error that is formed by the hardware capabilities of the machine, the error that can be incorporated in the development of a 3D model of the part in nominal dimensions, the error that may arise with the incorrect development of the control unit for a CNC machine and the error associated with the features of the control systems of a specific machine tool with PE. It was emphasized that when analyzing the interaction of a CAD / CAM system and a CNC machine tool, the SolidWorks CAD system from Dassault Systemes and CAM, a SolidCAM system with an integrated iMachining intelligent processing module from SolidCAM Ltd., were taken as a basis, since it is a complex CAM- a system that is designed for programming CNC machines in the SolidWorks environment. A structural diagram of a CAD / CAM system is proposed - a CNC machine, on the basis of which the interaction of the operator with the machine and the control system is presented in detail. Particular attention is paid to the influence of the parameters of the 3D model of the part (CAD system) and the optimized processing program (CAM system with the integrated iMachining module) on the total error in the manufacture of parts on a CNC milling machine and, ultimately, on the quality of the product as a whole. It is substantiated that the proposed approach and recommendations for the design development process, writing a control program for a CNC machine and methods for milling parts will minimize the total error in manufacturing a product.

References

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Published
2021-06-26
How to Cite
Yushkov А. (2021). Some aspects of designing parts and developing a control program in a CAD / CAM system affecting the total error of product production on a CNC milling machine . COMPUTER-INTEGRATED TECHNOLOGIES: EDUCATION, SCIENCE, PRODUCTION, (43), 164-170. https://doi.org/10.36910/6775-2524-0560-2021-43-27