摘要
Abstract
The working mechanism of Computer Numerical Control(CNC)is to control the relative motion between the cutter and the product with decoded machine programs,coordinates and numbers recognizable by computer.The accuracy of coordinates of the CNC machine tool decides whether the machine can accurately process the product according to the blueprints.Therefore,in-putting the coordinates fast and accurately can greatly improve production efficiency by improving the processing quality and re-ducing working hours.During the manual programming process,if cartesian coordinates programming is applied when the blue-prints' scale is marked by radius and angle or when there are circularly distributed holes on the component products,error rate increases as the coordinates' computational complexity increases.However,if polar coordinate programming is applied,the com-putational complexity can be greatly reduced by directly inputting the polar coordinates.Therefore, the programming process is simplified and the programming cycle is shortened,which improves the CNC's work efficiency.But in practice,there has been no adequately detailed programming instructions found in all kinds of resources including machine instructions.The simpler and more effective program compiled after repeated practicing on machine tools and concluding effective programming method for polar coordinates is worth spreading in the CNC milling machine and processing center.关键词
数控机床/数控编程/直角坐标/极坐标编程/相对极坐标编程Key words
CNC machine tools/CNC programming/rectangular coordinates/polar programming/relative polar programming分类
矿业与冶金
