数控机床能耗控制的优化研究与应用

Research and application of NC machine tool energy consumption control optimization

数控机床是典型的用能产品,由于各种损耗和辅助功能的存在,加工过程中能效一直比较低。为此,对数控机床能耗控制进行研究。以Simens840D sl数控系统为例,在分析数控系统的控制原理基础上,根据加工特征编制宏程序,实现系统动态的加工能效优化;基于不同工作状态下,根据机床闲置时间的长短,制定机床待命、系统待命和关机3种节能控制方案,通过编制相应的PLC控制逻辑,实现数控机床智能化的低能耗控制;将PAC3200/4200多功能测量仪集成于数控机床,实现对数控系统及辅助设备的能量消耗进行定量的测量和分析,实时获取生产现场的机床能量数据。该方案已成功应用于龙门移动式数控机床,并取得理想的效果,能够实现对能耗优化控制,提升机床的性能,使其更具市场竞争力。

The numerical control machine tool,which is a typical energy-using products,because there are all sorts of energy loss and auxiliary functions,has low efficiency in machining process.Author makes a study of NC machine tool energy consumption controlling.With Simens840D sl numerical control system as an example,based on the analysis of CNC system control principle,according to processing characteristic of the part,the macro program is wrote to optimize dynamic characteristics of NC.machine tool.According to the machine idle time in different work condition,three energy-saving control profiles are formulated,including machine standby,NC standby,auto shut off.By the formulation of the corresponding PLC control logic,low energy consumption of intelligent control of NC machine tool is realized.Integrate PAC3200/4200 multi-function meter in NC machine tools,quantitative measurement and analysis of energy consumption for numerical control system and ancillary equipment can be implemented,and machine tool real-time energy data can be obtained.This scheme has been successfully applied in longmen portable CNC machine tools,and obtained the ideal effect:to realize the optimize control of energy consumption,improve the performance of the machine tool,become more market competitiveness.