基于电子凸轮的压接装置伺服控制系统的设计
|
摘要
针对纸带压接机中压接装置的工作过程,在分析甩动辊运动过程的基础上,将甩动辊视为凸轮机构的从动件,定义其转动角度与从动件的行程等效,构建甩动辊动作电子凸轮曲线,从而基于电子凸轮控制机制,实现对甩动辊的控制。对该电子凸轮曲线的定义,特别是加速区和减速区的曲线形式,以及在加、减速区甩动辊与主动轴转角之间的关系进行了细致的讨论,得到了在加、减速区主动轴转动角度是甩动辊转动角度的2倍的结论;以此为指导,对伺服电机电子凸轮功能的参数设置进行讨论,并在纸带速度不同时均可离线设置。最后,讨论了实现上述控制的PLC程序的设计思想,并应用于实际系统,纸带压接装置的可靠性和稳定性取得了设想的效果。
Aiming at the working process of the press crimping device for paper tape crimping machine,on the basis of analyzing the movement process of the swing roller,the swing roller is regarded as the follower of cam mechanism. Its rotation angle is defined as equivalent to the stroke of the follower,and the action electronic cam curve of the swing roller is constructed. Thus,the control of the swing roller can be realized based on the electronic cam control mechanism. The definition of the electronic cam curve,especially the curve forms in the acceleration and deceleration area,and the angle relationship between the swing roller and the driving shaft in the acceleration and deceleration area are discussed in detail. It is concluded that the rotation angle of the driving shaft is twice as much as the rotation angle of the swing roller in the acceleration and deceleration area. Taking this as a guide,the parameters setting of the electronic cam function of servo motor are discussed,and it can be set off-line at different speeds of paper tape. Finally,the design idea of the PLC program to realize the above control is discussed and applied to the actual system. The reliability and stability of the press crimping device have achieved the desired effect.
Aiming at the working process of the press crimping device for paper tape crimping machine,on the basis of analyzing the movement process of the swing roller,the swing roller is regarded as the follower of cam mechanism. Its rotation angle is defined as equivalent to the stroke of the follower,and the action electronic cam curve of the swing roller is constructed. Thus,the control of the swing roller can be realized based on the electronic cam control mechanism. The definition of the electronic cam curve,especially the curve forms in the acceleration and deceleration area,and the angle relationship between the swing roller and the driving shaft in the acceleration and deceleration area are discussed in detail. It is concluded that the rotation angle of the driving shaft is twice as much as the rotation angle of the swing roller in the acceleration and deceleration area. Taking this as a guide,the parameters setting of the electronic cam function of servo motor are discussed,and it can be set off-line at different speeds of paper tape. Finally,the design idea of the PLC program to realize the above control is discussed and applied to the actual system. The reliability and stability of the press crimping device have achieved the desired effect.
引文
[1]高琨,张森林.基于PLC控制的电子凸轮系统设计[J].机电工程,2014,31(11):1419-1422.
[2]柏淑红.采用伺服电机的电子凸轮控制系统设计[J].机电工程,2012(6):689-692.
[3]李瑞琴,邹慧君,张晨爱,等.电子凸轮在横针机构中的应用研究[J].机械设计与研究,2006,22(6):32-34.
[4]涂晓曼,邹俊忠,张见.基于伺服电动机的电子凸轮控制系统研究[J].微特电机,2015,43(1):70-72.
[5]娄宇翔.基于PLC与伺服系统控制的电子凸轮应用研究[D].大连:大连理工大学,2014:2-10.
[6]马文明,孟彦京.20PM电子凸轮在高速切纸机中的应用[J].纸和造纸,2015,34(4):7-9.
[7]舒志兵,翟正磊,励书杰,等.基于电子凸轮的高速横切机飞剪系统设计分析[J].电气传动,2013,43(10):47-49.
[8]钱力,郭天松,王韵,等.基于VB的凸轮机构从动件运动规律设计系统[J].机械传动,2010,34(10):51-53.
[9]李惠昇.电梯控制技术[M].北京:机械工业出版社,2003:63-72.
[10]强明辉,付雪松.电子凸轮技术在胶囊壳生产线中的应用研究[J].自动化与仪表,2017,32(5):57-61.
[2]柏淑红.采用伺服电机的电子凸轮控制系统设计[J].机电工程,2012(6):689-692.
[3]李瑞琴,邹慧君,张晨爱,等.电子凸轮在横针机构中的应用研究[J].机械设计与研究,2006,22(6):32-34.
[4]涂晓曼,邹俊忠,张见.基于伺服电动机的电子凸轮控制系统研究[J].微特电机,2015,43(1):70-72.
[5]娄宇翔.基于PLC与伺服系统控制的电子凸轮应用研究[D].大连:大连理工大学,2014:2-10.
[6]马文明,孟彦京.20PM电子凸轮在高速切纸机中的应用[J].纸和造纸,2015,34(4):7-9.
[7]舒志兵,翟正磊,励书杰,等.基于电子凸轮的高速横切机飞剪系统设计分析[J].电气传动,2013,43(10):47-49.
[8]钱力,郭天松,王韵,等.基于VB的凸轮机构从动件运动规律设计系统[J].机械传动,2010,34(10):51-53.
[9]李惠昇.电梯控制技术[M].北京:机械工业出版社,2003:63-72.
[10]强明辉,付雪松.电子凸轮技术在胶囊壳生产线中的应用研究[J].自动化与仪表,2017,32(5):57-61.