摘要
细长轴刚性差、易变形,采用传统磨削工艺致使工件表面质量达不到要求,而砂带磨削具有"弹性磨削"和"冷态磨削"之称,可解决上述问题。据此设计了闭式接触轮式砂带磨削装置,并将其装夹于于普通车床上,对细长轴进行砂带磨削试验,通过试验分析了砂带速度、工件速度、磨削深度等因素对工件表面粗糙度的影响,结果表明在车床上采用闭式砂带磨削装置对细长轴进行精加工,能有效地降低表面粗糙度。当砂带速度为376.8m/min、工件速度为13.82m/min、磨削深度为0.07mm、纵向进给速度为0.2mm/r时,能获得最优的表面粗糙度Ra0.44m。
The slender shaft is in low rigidity and easy deformation, and using conventional technology will make the work piece surface quality can not reach the requirements. But the abrasive belt grinding is a new coated abrasive technology which is titled as ＂Elastic grinding＂ and ＂The Colder Grinding＂. And it can solve the above problem. So a closed-cycle abrasive belt grinding device with contact wheel is designed, which is applied on the conventional lathe. And then the abrasive belt grinding process experiment of long and thin shafts is done, which is in difficult machining. It analyzes the factor influencing the work piece surface roughness in experiments, such as the belt speed, the work piece speed and grinding depth and so on. The experimental results indicate that it can reduce the surface roughness of long and thin shafts effectively when using the closed-cycle abrasive belt grinding installment on the lathe to carry on the precision grinding. It can obtain the optimal surface roughness Ra0.44, when the belt speed is 376.8m/rain, work piece speed is 13.82m/min, grinding depth is 0.07ram and longitudinal feeding speed is 0.2mm/r.
出处
《机械设计与制造》
北大核心
2014年第1期50-52,共3页
Machinery Design & Manufacture
基金
国家自然科学基金资助项目(51275486)
关键词
表面粗糙度
砂带磨削
细长轴
实验研究
Surface Roughness
Abrasive Belt Grinding
Long and Thin Shaft
Experimental Study
