| 用三坐标数控铣床加工空间曲面时的圆弧插值算法 |
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| 引用本文： | 王秀梅,曹秋霞,赵建敏. 用三坐标数控铣床加工空间曲面时的圆弧插值算法[J]. 工程图学学报, 2007, 28(4): 145-149 |
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| 作者姓名： | 王秀梅 曹秋霞 赵建敏 |
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| 作者单位： | 1. 河南机电高等专科学校,河南,新乡,453002
2. 河南第一工具厂,河南,新乡,453002 |
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| 摘 要： | 论述了在三坐标数控铣床上采用球头铣刀铣削空间复杂形面时圆弧插值的计算方法.把刀具中心等距曲线轨迹的计算归结为计算零件轮廓上点的坐标,确定了加工空间等距曲线时插值点的计算流程图.利用圆弧插值算法推导出了坐标增量计算公式,此公式可应用到数控装置修正刀具的半径,从而提高零件廓形的加工精度.此算法也可应用到端铣刀加工时圆弧插值的计算.
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| 关 键 词： | 计算机应用 数控 空间曲面 圆弧插值 球头铣刀 |
| 文章编号： | 1003-0158（2007）04-0145-05 |
| 收稿时间： | 2006-12-11 |
| 修稿时间： | 2006-12-11 |
Algorithm of Circular Interpolation in Machining Space Curved Face by Three-Coordinate NC Milling Machine |
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| WANG Xiu-mei,CAO Qiu-xia,ZHAO Jian-min. Algorithm of Circular Interpolation in Machining Space Curved Face by Three-Coordinate NC Milling Machine[J]. Journal of Engineering Graphics, 2007, 28(4): 145-149 |
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| Authors: | WANG Xiu-mei CAO Qiu-xia ZHAO Jian-min |
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| Abstract: | The algorithm of circular interpolation for machining space curved face on the three-coordinate NC milling machine by ball-end milling is described. It puts up the computation of equidistant curve trail in the center of the tool as the coordinate of a point on the parts profile by analyzing the tool relative movement. The workflow of calculation for interpolation node is determined and the formula of coordinate increment is put forward. The formula can be used in wrap modification of tool radius to improve machining precision. The algorithm also fits to the case of end milling. |
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| Keywords: | computer application NC space curved face circular interpolation ball-end milling |
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