凸轮轴数控磨削工件主轴转速优化建模与实验研究

中国机械工程 ›› 2016, Vol. 27 ›› Issue (05): 652-657.

凸轮轴数控磨削工件主轴转速优化建模与实验研究

杨寿智1;邓朝晖2;吴桂云2;刘伟2;万林林2;彭克立3

1.湖南大学，长沙，410082
2.湖南科技大学难加工材料高效精密加工湖南省重点实验室，湘潭，411201
3.湖南海捷精密工业有限公司，长沙，410205

出版日期:2016-03-10 发布日期:2016-03-11
基金资助:
国家自然科学基金资助项目(51175163)；国家科技支撑计划资助项目(2015BAF23B01)；高等学校博士学科点专项科研基金资助项目(20110161110032)

Modeling and Experimental Research of Workpiece Spindle Speed Optimization in CNC Camshaft Grinding

Yang Shouzhi1;Deng Zhaohui2;Wu Guiyun2;Liu Wei2;Wan Linlin2;Peng Keli3

1.Hunan University,Changsha,410082
2.Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-cut Material,Hunan University of Science and Technology,Xiangtan,Hunan,411201
3.Hunan Hicam Precision Industry Co.,Ltd.,Changsha,410205

Online:2016-03-10 Published:2016-03-11
Supported by:

摘要/Abstract

摘要：

根据凸轮轴X-C轴联动恒线速度磨削加工数学模型，建立了砂轮架进给位移与速度、凸轮工件主轴转速的理论方程。根据数控凸轮轴磨床加工能力的约束条件，对砂轮架进给中速度、加速度或加加速度值超出限定值的凸轮转角区间，通过积分反求方法求解出相应转角区间工件主轴所允许的转速值，并以该段转速值替换对应的转角区间上凸轮轴恒线速度磨削时理论转速值。对优化计算前后的工件主轴转速曲线进行了凸轮轴磨削加工实验。实验结果表明：采用优化后的凸轮工件主轴转速进行加工，相比于恒线速度理论转速加工，其升程最大误差与最大相邻误差减小，工件表面粗糙度降低，提高了凸轮轴高效精密磨削加工质量。

关键词: 凸轮轴, 工件主轴, 转速优化, 砂轮架加速度, 积分反求

Abstract:

According to the constant speed camshaft grinding mathematical model in X-C axis, the equations of horizontal feed displacement and velocity of wheelhead, cam workpiece spindle theory speed were established. Based on the machine capacity constraints of CNC camshaft grinder, the allowed values of workpiece spindle speed were calculated with integration reverse method, where the values of horizontal feed velocity, acceleration or jerk of wheelhead exceeded the limit in the corresponding corner section. Then the calculated values of workpiece spindle speed were replaced with the theoretical speed value of constant speed camshaft grinding on the corresponding corner section. With the workpiece spindle speed curves before and after optimization, the camshaft grinding experiments were carried out. The experimental results indicate that: using the optimized workpiece spindle speed, the maximum cam lifting errors and maximum adjacent errors of the camshaft decrease compared to that processed by the theoretical constant speed; and the surface roughness also decreases. It shows that optimization method can improve the processing quality of the precision and efficient camshaft grinding.

Key words: camshaft, workpiece spindle, speed optimization, wheelhead acceleration, integration reverse

中图分类号:

TG580

杨寿智, 邓朝晖, 吴桂云, 刘伟, 万林林, 彭克立. 凸轮轴数控磨削工件主轴转速优化建模与实验研究[J]. 中国机械工程, 2016, 27(05): 652-657.

Yang Shouzhi, Deng Zhaohui, Wu Guiyun, Liu Wei, Wan Linlin, Peng Keli. Modeling and Experimental Research of Workpiece Spindle Speed Optimization in CNC Camshaft Grinding[J]. China Mechanical Engineering, 2016, 27(05): 652-657.

参考文献

[1]陈勇. 汽车轴类零件高效磨削实验研究与工艺优化[D]. 上海: 东华大学, 2014.

[2]许第洪, 孙宗禹, 周志雄, 等. 切点跟踪磨削法运动模型的研究[J]. 机械工程学报, 2002, 38(8): 68-73.

Xu Dihong, Sun Zongyu, Zhou Zhixiong, et al. Research on Motion Model of Tangential Point Grinding[J]. Journal of Mechanical Engineering, 2002, 38(8): 68-73.

[3]李勇. 影响数控凸轮轴磨削加工精度若干因素的研究[D]. 武汉: 华中科技大学, 2004.

[4]曹德芳, 邓朝晖, 刘伟, 等. 凸轮轴磨削加工速度优化调节与自动数控编程研究[J]. 中国机械工程, 2012, 23(18): 2149-2155.

Cao Defang, Deng Zhaohui, Liu Wei, et al. Research on Camshaft Grinding Speed Optimization and Automatic NC Programming[J]. China Mechanical Engineering, 2012, 23(18): 2149-2155.

[5]肖真健. 数控磨床磨削凸轮轴类零件的数学模型与试验研究[D]. 长沙: 湖南大学, 2001.

[6]盛晓敏, 宓海青, 陈涛, 等. 汽车凸轮轴的高速精密磨削加工关键技术[J]. 制造技术与机床, 2007(4): 122-125.

Sheng Xiaomin, Mi Haiqing, Chen Tao, et al. Key Techniques in High Speed and Precision Grinding of Cam Axes[J]. Manufacturing Technology and Machine Tools, 2007(4): 122-125.

[7]孙志永,褚大雁. 数控凸轮轴磨床加工中的一些仿真技术[J]. 制造技术与机床, 2006(6): 97-99.

Sun Zhiyong, Chu Dayan. Simulation Technology in Machining CNC Cam Grinding Machine[J]. Manufacturing Technology and Machine Tools, 2006(6): 97-99.

[8]邓朝晖, 王娟, 曹德芳, 等. 凸轮轴磨削加工过程的动态优化和仿真[J]. 湖南大学学报（自然科学版）, 2009, 36(5): 21-25.

Deng Zhaohui, Wang Juan, Cao Defang, et al. Dynamic Optimization and Simulation of Camshaft Grinding Process[J]. Journal of Hunan University (Natural Sciences), 2009, 36(5): 21-25.

[9]蔡晓敏, 何永义, 周其洪, 等. 凸轮切点跟踪磨削的头架转速研究[J]. 组合机床与自动化加工技术, 2012(2): 41-44.

Cai Xiaomin, He Yongyi, Zhou Qihong, et al. Revolution Control of Headstock Base on Non-circular Grinding[J]. Modular Machine Tool & Automatic Manufacturing Technique, 2012(2): 41-44.

[10]Sun Yuwen, Zhao Yang, Xu Jinting, et al. The Feedrate Scheduling of Parametric Interpolator with Geometry, Process and Drive Constraints for Multi-axis CNC Machine Tools[J]. International Journal of Machine Tools & Manufacture, 2014,85: 49-57.