基于840Dsl数控机床刀具刃磨二次系统设计和实现

摘要

At present, the imported CNC broach dressing machines is mostly expensive, and processing al-gorithm is fixed and can not be optimized according to customer requirements. And the domestic equipment that connect CNC systems and industry PC with communication wire, can not realize graphical monitoring processing status. In response to this problem, this paper presents a method for developing HMI of Siemens 840Dsl CNC system,in which the tool dressing calculation model is embedded. The machine tool dressing HMI is very practical,flexible and easy to operate.%目前,数控机床刀具刃磨机床大部分采用国外进口设备,价格昂贵,并且加工算法固定不变不能根据产品设计灵活调整,而国内的加工设备采用工控机和数控系统结合的方式,不能实时图形化监控加工状态.针对存在的这种问题,文章提出在西门子840 Dsl数控系统提供的服务接口中开发实现HMI二次系统,将刀具刃磨加工模型算法嵌入到二次系统设计中,以满足客户对加工算法灵活度以及加工前图形模拟设计的要求,同时通过人机交互实时观察控制数控机床刀具刃磨的加工过程.二次系统的设计和实现在实际使用中,验证了该二次系统的灵活性,实用性和易操作性.