Research on automatic coordinate system compensation of Huazhong NC system horizontal four-axis machine tool
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摘要: 针对卧式四轴机床无刀尖点跟随功能的情况下，无法实现产品在转台任意位置进行坐标系自动补偿的问题。通过分析刀尖点跟随原理，结合机床结构及坐标系变换后机床任意点坐标与机械坐标系的变换关系，编制坐标系自动补偿宏程序，开展基于NX的后处理开发研究，在NX编程平台中以事件形式驱动后处理，完成坐标系自动补偿宏程序的自动输出，实现华中数控卧式四轴机床坐标系自动补偿，实现产品在机床工作台任意位置的加工，提高四轴数控机床的适用性。Abstract: Horizontal four axis machine tool, the author of this paper under the condition of no point point follow function, unable to realize the problem of automatic compensation in any position to coordinate system, through the analysis of the tip point follow the principle of combination of machine tool structure and arbitrary point coordinate transformation after the machine tool coordinate and machine coordinate system transformation relations, coordinate system automatically compensate macro program,For development research, based on NX post-processing in NX programming platform in the form of event driven post-processing, complete coordinate system automatically compensate macro program automatically output, realize Hua zhong NC system horizontal four axis machine tool coordinate system automatic compensation, product processing in the machine table any position, improve the applicability of the four axis nc machine tools.
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表 1 机械坐标系各变量地址表
机械坐标系 系统变量 说明 G54 #1040 Xm机械坐标值 #1041 Ym机械坐标值 #1042 Zm机械坐标值 #1044 B机械坐标值 G59 #1090 X'm机械坐标值 #1091 Y'm机械坐标值 #1092 Z'm机械坐标值 #1094 B'机械坐标值 
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