多头大导程矩形螺纹数控加工研究  

Research on NC Machining of Multi-head Large Lead Rectangular Thread

作　　者：余松林[1] 黄勇 马生俊 王宏 YU Songlin;HUANG Yong;MA Shengjun;WANG Hong(College of Engineering Skill Training,Xinjiang Institute of Engineering,Urumqi 830023,China;College of Mechanical and Electrical,Xinjiang Institute of Engineering,Urumqi 830023,China)

机构地区：[1]新疆工程学院工程技能实训学院,新疆维吾尔自治区乌鲁木齐830023 [2]新疆工程学院机电工程学院,新疆维吾尔自治区乌鲁木齐830023

出　　处：《机械制造与自动化》2021年第5期16-18,22,共4页Machine Building & Automation

基　　金：新疆维吾尔自治区自然科学基金项目(2018D01B05);新疆工程学院科研育人项目(2019xgy072112)。

摘　　要：针对车削多头大导程矩形螺纹过程中存在易断刀、加工精度低等问题,通过对其加工中切削力分析,建立特定加工刀具模型,力求降低刀具磨损和损坏,提高刀具使用寿命。采用横线进刀线性递减、纵向刀具轨迹偏移的方式完成刀具切削路径规划,进一步降低切削力,提高零件加工质量,并通过数控加工的实现和零件加工质量的检测验证其可行性。To solve the problems in the turning process of multi-head long lead rectangular thread such as easily-broken cutter and low machining accuracy,a specific tool model is established to reduce tool wear and damage and increase tool service life through the analysis of cutting force in machining rectangular thread with multiple heads and large lead.The tool path planning is completed by linear decreasing of horizontal feed and offset of longitudinal tool path,which further reduces the cutting force and improves the machining quality of parts.The feasibility is verified by the realization of NC machining and the inspection of machining quality of parts.

关 键 词：矩形螺纹 大导程 刀具 数控加工 

分 类 号：TH161[机械工程—机械制造及自动化]