数控机床原点、参考点、工件零点的区别和联系  

Difference and connection between the origin,reference point,and workpiece zero point of CNC machine tools

作　　者：吕宝垒 Lv Baolei(Grob Machine Tool(China)Co.LTD.,Dalian 116600,Liaoning,China)

机构地区：[1]格劳博机床(中国)有限公司,辽宁大连116600

出　　处：《橡塑技术与装备》2024年第5期27-31,共5页China Rubber/Plastics Technology and Equipment

摘　　要：机床原点和参考点是定义数控机床运动的两个重要的概念,二者既有区别又有联系。机床原点也就是机床坐标系的零点是数控机床进行位置测量、控制、显示的统一基准。本文从新的视角定义了数控机床参考点的概念,概述了参考点在数控机床中的作用以及在什么条件下需要重新设定参考点。结合实际工作中设定数控机床X、Y、Z轴参考点的操作方法,通过总结其内在原理进一步阐明了参考点的特性。通过设定或建立参考点之后机床的原点才有实际意义,而机床的原点是在机床设计之初就确定的,只有有了机床的原点才能设定参考点的位置,这就是二者之间的区别和联系。工件零点是工件坐标系的原点,它是在机床坐标系的基础上为方便数控编程而根据工件的特点设定的。Machine tool origin and reference point are two important concepts that define the motion of CNC machine tools,and they have both differences and connections.The machine tool origin,also known as the zero point of the machine tool coordinate system,is the unified reference for position measurement,control,and display of CNC machine tools.This article defines the concept of reference points for CNC machine tools from a new perspective,outlines the role of reference points in CNC machine tools,and identifies the conditions under which reference points need to be reset.This article combines the operation method of setting reference points for the X,Y,and Z axes of CNC machine tools in practical work,and further clarifies the characteristics of reference points by summarizing their inherent principles.The origin of the machine tool only has practical significance after setting or establishing a reference point;The origin of the machine tool is determined at the beginning of the machine tool design;Only with the origin of the machine tool can the position of the reference point be set,which is the difference and connection between the two.The zero point of the workpiece is the origin of the workpiece coordinate system,which is set based on the characteristics of the workpiece for the convenience of CNC programming on the basis of the machine coordinate system.

关 键 词：数控机床 机床原点 机床坐标系 参考点 工件零点 

分 类 号：TQ320.52[化学工程—合成树脂塑料工业]