摘要
数控机床切削椭圆过程中,为避免产生过切或刀补建立失败,需选择合理的刀具及合理的进、退刀位置,其中刀具半径根据椭圆长半轴极点的曲率半径公式计算得出;在编制宏程序时,椭圆曲线参数方程中数据的代入直接影响到椭圆形状的加工,其中包括代入公式的长、短半轴的数据,是离心角或是旋转角;在编制宏程序时,确定刀具中心的路径为理想椭圆的等距偏移线,其中偏移距离最大为长半轴极点曲率半径值,这样不仅能保证机床加工过程中顺利切削并且保证椭圆尺寸要求的精度。
In the process of cutting the ellipse of the CNC machine,in order to avoid the occurrence of over-cutting or cutter failure, it is necessary to select a reasonable tool and reasonable advance and retreat position, in which the radius of tool is calculated according to the radius of curvature of the ellipse＇s long half-ax- is;when compiling the macro program,the elliptic curve parameter equation in the data will affect the o- val shape of the processing directly,including the formula into the long axis of the data,short axis data, they are the centrifugal angle or rotation angle ; when compiling the macro program, to determine the path of the center of the tool is the ideal ellipse of the equidistant offset line,where the offset distance is the maximum radius of the long axis of the radius of emwature, so that not only to ensure smooth machining process and ensure that the elliptical size requirements accuracy.
出处
《制造技术与机床》
北大核心
2017年第12期126-129,共4页
Manufacturing Technology & Machine Tool
基金
河南省重点科技攻关项目(142102210137)
河南省民办高校品牌专业(ZLG201601)
关键词
曲率半径
离心角
宏程序
刀具中心轨迹
椭圆轮廓精度
curvature radius
centrifugal angle
macro program
tool center trajectory
elliptical contour accuracy
