基于残高控制的异形截面螺杆螺旋槽的精加工刀路规划  

Tool path planning of finish mill for spiral groove of variable pitch screw with special section based on scallop height control

作　　者：胡双锋[1] 吴丕业 朱怡然 徐应达 胡小艳 Hu Shuangfeng;Wu Piye;Zhu Yiran;Xu Yingda;Hu Xiaoyan(School of Material Science and Engineering,Wuhan Institute of Technology,Wuhan 430205,China;Wuhan Huichuang Precision Machinery Manufacturing Co.,Ltd.,Wuhan 430205,China)

机构地区：[1]武汉工程大学材料科学与工程学院,武汉430205 [2]武汉汇创精密机械制造有限公司,武汉430205

出　　处：《现代制造工程》2020年第7期39-41,109,共4页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(51575406);武汉工程大学科学研究基金项目(K201804)。

摘　　要：异形截面变螺距螺杆作为功能件应用广泛。在分析异形截面变螺距螺杆的结构特征与技术要求的基础上,设计了四轴数控铣削加工该螺杆的方案,并采用流线曲面驱动,规划了螺旋槽的精加工刀路;构建了残余高度与刀具直径、切削行距之间的几何关系。检测结果表明:该加工方案加工过程稳定,加工出的螺杆精度可达到技术要求。Variable pitch screw with special section is widely used as functional parts.Based on the analysis of structural characteristics and technical requirements of variable pitch screw with special section,a four-axis NC milling method for the screw was designed,the finish mill tool paths of the spiral groove were planned,which was driving by the streamline surface.Meanwhile,the relationship between scallop height with cutting diameter and cutting row spacing was established.The production practice shows that the milling process is stable,and the testing results show that the precision of milled screw meets the required technical specifications.

关 键 词：异形截面变螺距螺杆 残余高度 切削行距 

分 类 号：TH164[机械工程—机械制造及自动化]