多刃错齿内排屑深孔钻导向块位置设计与分析  

Design and Analysis of Guide Block Position for Internal Chip Removal Deep Hole Drill with Multi-edge Staggered Teeth

作　　者：韩晓兰 祝升亮 刘战锋[1] Han Xiaolan;Zhu Shengliang;Liu Zhanfeng(School of Mechanical Engineering,Xi′an Shiyou University,Xi′an 710065,China)

机构地区：[1]西安石油大学机械工程学院,西安市710065

出　　处：《工具技术》2022年第5期40-44,共5页Tool Engineering

摘　　要：针对深孔钻削过程中出现的噪音大、切削振动等问题,设计了深孔加工钻头导向块的位置,并分析了导向块布局对钻削过程中切削力和零件表面质量等方面的影响。基于导向块的设计原则,根据公式推导和工作原理得到导向块的合理位置。通过MATLAB软件参数优化、ANSYS软件显示动力学仿真及谐响应分析和实验对照的方式验证了导向块位置的合理性。结果表明,当导向块位置角δ_(1)=172°,δ_(2)=273°时,减弱了切削振动,提高了钻削的稳定性,使零件表面粗糙度Ra达到6.3μm。Aiming at the problems of high noise and cutting vibration in the process of deep hole drilling,the position of the guide block of the deep hole processing drill is designed,the impact of the guide block layout one the cutting force during the drilling process and the surface quality of the parts are analyzed.Based on the design principle of the guide block,the reasonable position of the guide block is obtained by formula derivation and working principle analysis.The rationality of the position of the guide block is verified through MATLAB parameter optimization,ANSYS display dynamics simulation,ANSYS harmonic response analysis and experimental comparison.The results show that when the position angles of the guide block areδ_(1)=172°,δ_(2)=273°,the cutting vibration is reduced,the drilling stability is improved,and the surface roughness Ra of the part is 6.3μm.

关 键 词：导向块位置 参数优化 切削力 表面质量 

分 类 号：TG501.3[金属学及工艺—金属切削加工及机床] TG713