Modeling and Simulation of Machining Track of Internal Thread Cutting
PANG Di1, JIN Chengzhe1, WANG Shuli2, ZHANG Ying2, CAI Ying2
1. School of Mechanical Engineering, Shenyang Ligong University, Shenyang 110159, China;
2. Inner Mongolia North Heavy Industries Group Corp. Ltd., Baotou 014030, China
When milling large diameter internal thread parts, it is often due to the selection of improper milling cutter diameter and cutting parameters, resulting in after cutting, the surface shape error of the workpiece is large and the machining accuracy is low and other situations. Tool diameter and cutting parameters affect tool path to different degrees. Thus the theoretical roughness of the machined surface is further affected. Therefore, it is of great importance to study and theoretically analyze the influence of tool diameter and cutting parameters on tool path. On the one hand, the tool path matrix equation is set up by using the homogeneous coordinate transformation method. According to different reference objects, the matrix equations of two kinds of point trajectories on cutting edges are established. On the other hand, single factor test method is used to select different tool diameters and cutting parameters for machining trajectory simulation. The results show that with the increase of milling cutter diameter, milling cutter speed and the number of milling cutter teeth, the theoretical roughness decreases, making the machined surface close to the ideal smooth surface.
基金资助:辽宁省自然科学基金计划项目(20170540778)。
引用本文:
逄迪,金成哲,王书利,张莹,蔡瑛. 内螺纹铣削加工轨迹建模及仿真[J]. 航空制造技术, 2019, 62(20): 92-101.
PANG Di, JIN Chengzhe, WANG Shuli, ZHANG Ying, CAI Ying. Modeling and Simulation of Machining Track of Internal Thread Cutting. Aeronautical Manufacturing Technology, 2019, 62(20): 92-101.