基于优化传递函数的机床微进给控制方法仿真
Simulation of Machine Tool Micro-feed Control Method Based on Optimal Transfer Function
朱爽 1赵群 1王炳达 1盖宇2
作者信息
- 1. 沈阳工程学院机械学院,辽宁 沈阳 110136
- 2. 辽宁石油化工大学人工智能与软件学院,辽宁 抚顺 110000
- 折叠
摘要
高强度运行环境下,数控机床往往要求较高的加工精度,为了提升机床微进给控制性能,提出一种基于优化传递函数的机床微进给控制方法.对机床微进给架构的驱动部分建模分析,获取驱动部分的传递函数与传动部分的传递函数,根据传递函数分析机床稳定性.将机床微进给全局滑模控制和内模控制有效结合,在高强度运行环境下建立一种全新的机床微进给控制器,通过新控制器实现高强度运行环境下机床微进给控制.仿真测试结果表明,所提方法可以有效降低机床运行能耗,提高工件加工效率,降低控制误差,说明上述方法可以取得预期控制效果.
Abstract
In high-intensity environment,numerical control machine tools often require high machining accuracy.In order to improve the micro feed control performance of machine tools,this article put forward a micro-feed control method based on optimized transfer functions.At first,the drive section of the micro-feed architecture was modeled and analyzed to obtain the transfer function of drive part and the transmission part,and then the stability of the ma-chine tool was analyzed according to the transfer function.After effectively combining the global sliding mode control and internal model control of the micro-feed architecture,we constructed a new micro-feed controller of machine tool in the high-intensity environment.Finally,the micro feed control was realized.Simulation test results show that the proposed method can effectively reduce the operation energy consumption of machine tool,improve the workpiece pro-cessing efficiency,and reduce the control error.Therefore,the method achieves the desired control effect.
关键词
高强度运行/机床/微进给控制/传递函数/控制器Key words
High-intensity operation/Machine tool/Micro feed control/Transfer function/Controller引用本文复制引用
出版年
2024
NETL
NSTL
万方数据