What is CNC technology?CNC technology,referred to as Numerical Control(Numerical Control).It is a method of controlling the movement and processing of machine tools using digital information.A machine tool that implements machining control using numerical control technology,or a machine tool equipped with a numerical control system,is called a numerical control(NC)machine tool.The numerical control system includes:numerical control device,programmable controller,spindle drive and feed device.The CNC machine tool is a highly integrated product of machine,electricity,liquid,gas and light.To achieve control of the machine tool,geometric information is needed to describe the relative motion between the tool and the workpiece,and process information is used to describe some of the process parameters that must be available for machine tool machining.For example:feed speed,spindle speed,spindle reversal,tool change,coolant switch,etc.The information is processed in a certain format to form a processing file(that is,a CNC machining program normally referred to)stored on an information carrier(such as a magnetic disk,a punched tape,a magnetic tape,etc.),and then read in by the numerical control system on the machine tool(or directly through the numerical control system).Keyboard input,or input by communication),through decoding,so that machine tools and machining parts.Modern CNC machine tools are typical products of mechatronics,is the technical basis of next-generation production technology,computer integrated manufacturing systems,etc..
The development trend of modern CNC machine tools is high speed,high precision,high reliability,multi-function,composite,intelligent and open structure.The main development trend is to develop intelligent full-featured universal numerical control devices with soft and hardware structures with open structure.CNC technology is the basis of machining automation,and is the core technology of CNC machine tools.Its level is related to the national strategic position and the level of national comprehensive strength.It is related to the development of information technology,microelectronics technology,automation technology and testing technology.development of.The CNC machining center is a CNC machine tool with a tool magazine that can automatically change tools and perform various machining operations on a workpiece within a certain range.The characteristics of the machined parts on the machining center are:after the workpiece is machined,the CNC system can control the machine tool to automatically select and replace the tool according to different processes;automatically change the spindle speed,feed rate and the movement of the tool relative to the workpiece.And other auxiliary functions,continuously drilling,boring,reaming,boring,tapping,milling and other multi-step machining on each workpiece surface.Since the machining center can complete various processes in a centralized and automatic manner,it avoids artificial operation errors,reduces workpiece clamping,measurement and adjustment time of the machine tool,and workpiece turnover,handling and storage time,greatly improving machining efficiency and machining accuracy.Therefore,it has good economic benefits.The machining center can be divided into a vertical machining center and a horizontal machining center according to the position of the spindle in space.