What are the points for attention in daily operation of Cnc Machining?
In the late 1940s, the United States began to study Cnc Machine tools, 1952, the Massachusetts Institute of Technology (MIT) servo laboratory successfully developed the first CNC milling machine, and in 1957 put into use.The first CNC machining center is the first successful development by the United States Carney – Drake Company in 1958.It adds an automatic tool change device on the basis of CNC horizontal boring and milling machine, so as to realize a clamping workpiece can be milling, drilling, boring, hinge and tapping and other processes of centralized processing.This is a major breakthrough in the process of manufacturing technology development, marking the beginning of the era of CNC lathe processing in the manufacturing field.CNC lathe processing is the foundation of modern manufacturing technology, this invention for manufacturing industry, has epoch-making significance and far-reaching influence.The main industrial developed countries in the world attach great importance to the research and development of numerical control lathe processing technology.
CNC machining is generally refers to the processing process of parts on CNC machine tools.CNC machine tool is a computer to control the machine tool, the computer used to control the machine tool, whether it is a special computer, or a general computer are collectively called CNC system.
The movement and auxiliary movements of CNC machine tools are controlled by the instructions issued by the numerical control system, and the instructions of the numerical control system are compiled by programmers according to the material of the workpiece, processing requirements, characteristics of the machine tool and the instruction format (numerical control language or symbols) specified by the system.According to the program instruction, the CNC system sends out operation terminations or information to the servo device and other functional parts to control the various movements of the machine tools.The machine stops automatically when the parts are finished.Any numerical control machine tool, in its numerical control system if there is no input program instruction, numerical control machine can not work.The controlled movement of the bed includes the starting and stopping of the machine tool.Spindle start and stop, rotation direction and rotation speed transformation;Direction, speed and mode of feed movement;Tool selection, length and radius compensation;Tool replacement, coolant on and off, etc.
The technical procedures of CNC machining are generally the same, but there have been significant changes.A machining method for controlling the displacement of parts and tools with digital information.
CNC machining is an effective way to solve the problems of variable parts variety, small batch, complex shape and high precision, and to realize high efficiency and automatic processing.Machining center originally developed from CNC CNC milling machine processing.
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