磨床自定心中心架复位机构的设计与仿真
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摘要
自定心中心架作为丝杠、曲轴等细长轴类零件磨削过程中的辅助夹具,对细长轴类零件的加工精度具有非常重要的意义。复位机构作为自定心中心架的重要组成部分,关系到自定心中心架的定位精度和使用寿命。针对一种刚性复位板机构进行研究,实现凸轮与夹臂之间的紧密接触和及时复位,并对复位板进行参数化设计与仿真,得到了其精确的数学计算模型。利用MATLAB软件求解了某型自定心中心架刚性复位板中曲线槽的轮廓,并用MATLAB、UG及Adams软件的协同虚拟仿真功能,验证了复位板数学模型的正确性和设计方法的可行性。
As an auxiliary fixture in the grinding process of slender shaft parts such as lead screw and crankshaft and so on,the self-centering center rest is of great significance to the processing accuracy of slender shaft parts.As an important part of the self-centering center rest,the reset mechanism is related to the positioning accuracy and service life of the self-centering center rest.A rigid reset plate mechanism is studied to realize close contact and timely reset between cam and clamp arm.The parametric design and simulation of reset plate is carried out,and its precise mathematical calculation model is obtained.The contour of the curve groove in the rigid reset plate of a self-centering center rest is solved by using MATLAB software.The correctness of the mathematical model of the reset plate and the feasibility of the design method are verified b y using the collaborative virtual simulation functions of MATLAB,UG and Adams software.
As an auxiliary fixture in the grinding process of slender shaft parts such as lead screw and crankshaft and so on,the self-centering center rest is of great significance to the processing accuracy of slender shaft parts.As an important part of the self-centering center rest,the reset mechanism is related to the positioning accuracy and service life of the self-centering center rest.A rigid reset plate mechanism is studied to realize close contact and timely reset between cam and clamp arm.The parametric design and simulation of reset plate is carried out,and its precise mathematical calculation model is obtained.The contour of the curve groove in the rigid reset plate of a self-centering center rest is solved by using MATLAB software.The correctness of the mathematical model of the reset plate and the feasibility of the design method are verified b y using the collaborative virtual simulation functions of MATLAB,UG and Adams software.
引文
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[17]陈新德.基于ADAMS的平面八连杆机构的优化设计和仿真[J].机械传动,2015(9):113-116.
[18]宫丽男,庞在祥.基于ADAMS的六足仿生机器人结构设计及运动仿真[J].机械传动,2018(3):49-53.
[19]范素香,齐新华,侯书林.基于Matlab及UG的偏心共轭非圆齿轮的设计[J].机械传动,2011,35(9):70-72.
[20]胡赤兵,姚洪辉.基于MATLAB及Pro/E的参数化非圆齿轮设计[J].机械传动,2010,34(7):33-35.
[21]BAHALEY S G,BHARAMBE R L.Design and analysis of self centering steady rest for supercut-6 CNC turning machine using CAD&FEA[J].International Journal on Mechanical Engineering and Robotics.2016,4(1):14-19.
[2]陈胜金,邓志平,赵刚.基于跟刀架的细长轴加工尺寸误差在线检测[J].煤矿机械,2013,34(4):174-175.
[3]边辉.中心架联动机构的研究[J].制造技术与机床,2010(6):139-140.
[4]意大利SMW-AUTOBLOK公司.Informfation及样本[Z].[S.l.]:意大利SMW-AUTOBLOK公司,2018:267-286.
[5]HUANG H C,SHIH-JIE W E I,SU H C.Auto-centering apparatus of a steady rest:2014/091066[P].2013-11-26.
[6]EUGEN H,PETER S.Electric-drive steady rest:2013/0014620[P].2013-01-17.
[7]LESSWAY R J.Steady rest with independent vertical and horizontal adjustments:2005/6896603[P].2005-05-24.
[8]RAO B C,SHIN Y C.A comprehensive dynamic cutting force model for chatter Prediction in turning[J].International Journal of Machine Tool&Manufacture,1999,39(10):1631-1654.
[9]徐旭东,瞿靖华,陈伟民.开启式自定心中心架对称平移凸轮廓线方程的建立[J].组合机床与自动化加工技术,1990(8):11-12.
[10]赵永强,王耀锋.自定心中心架的力学分析与仿真[J].制造业自动化,2015,37(7):99-102.
[11]赵永强,柴新宁,侯红玲,等.磨床用自定心中心架的机构设计与仿真[J].机械传动,2016,40(9):85-90.
[12]栾芝.液压中心架设计与加工中的几个关键问题[J].机械制造,2009(2):55-56.
[13]BRUNO D.Improvements in and relating to devices for clamping and/or holding a workpiece in a lathe:1220954-A[P].1968-05-14.
[14]P?M?NTA?E,BANCIU F.Looking for a mathematical solution for self-centering device[J].Applied Mechanics and Materials,2014,657:509-513.
[15]赵永强,王耀锋,侯红玲.磨床用自定心中心架的机构设计与优化[J].中国机械工程,2016,27(17):1-6.
[16]WILSON C E,SADLER J P.Kinematics and dynamics of machinery[M].3rd ed.New York:Pearson Education Limited,2003:353-385.
[17]陈新德.基于ADAMS的平面八连杆机构的优化设计和仿真[J].机械传动,2015(9):113-116.
[18]宫丽男,庞在祥.基于ADAMS的六足仿生机器人结构设计及运动仿真[J].机械传动,2018(3):49-53.
[19]范素香,齐新华,侯书林.基于Matlab及UG的偏心共轭非圆齿轮的设计[J].机械传动,2011,35(9):70-72.
[20]胡赤兵,姚洪辉.基于MATLAB及Pro/E的参数化非圆齿轮设计[J].机械传动,2010,34(7):33-35.
[21]BAHALEY S G,BHARAMBE R L.Design and analysis of self centering steady rest for supercut-6 CNC turning machine using CAD&FEA[J].International Journal on Mechanical Engineering and Robotics.2016,4(1):14-19.