车床自动送料机构的棒料振动变形分析  

Analysis on bar vibration deformation of lathe automatic feeding mechanism

作　　者：崔鑫伟 李金良[1] 于冲 CUI Xin-wei;LI Jin-liang;YU Chong(School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004

出　　处：《重型机械》2018年第6期64-68,共5页Heavy Machinery

摘　　要：针对车床自动送料机在正常工作时出现的棒料振动问题,以某型号送料机为研究对象,使用Ansys Workbench建立数值模型。解算模型得到棒料的模态以及谐响应特性,并完成对送料系统的流固耦合分析。结果表明:棒料弯曲变形程度随转速的增加而增大,随液压油粘度的增加而减小;棒料与送料导管之间存在最佳间隙,且间隙过大或者过小都会导致变形加大。For bar vibration of lathe automatic feeding mechanism under the normal working condition,taking a certain type feeding mechanism as the research object,a numerical model is established by using Ansys Workbench.The modal and harmonic response characteristics of the bar are obtained,and the fluid-solid coupling analysis of the feeding system is completed.The results show that the bar bending deflection increases with the increase of the rotational speed and decreases with the increase of the hydraulic oil viscosity.There is an optimum clearance between the bar and the feeding guiding pipe,and the clearance is too large or too small to cause the deformation increase.

关 键 词：自动送料机构 棒料变形 振动分析 

分 类 号：TP603[自动化与计算机技术—控制理论与控制工程]