what meant is CNC machining after ?

what meant is CNC machining after ?

Traditional machining is done by hand general machine operation, hand-shaking mechanical machining of metal cutting tools, and other work by eye caliper
A precision measurement products. Modern computer industry already use digital control machine tools for the job, and can follow the art CNC machine tools
Pre-programmed automatically for any products and parts directly processed. This is what we say "NC."
CNC machining is widely used in all areas of any machining, it is the development trend of mold and important and necessary technical means.
"CNC" is the English Computerized Numerical Control (computer numerical control) acronym.
What is the numerical control technology?
CNC technology, referred to as NC (Numerical Control). It is the use of digital information processing machine tool motion and process control
a way. Implementation of process control machine tools with numerical control technology, or equipped with CNC system called NC (NC) machine tools. NC Department
System comprises: Some numerical control device, programmable controllers, feed and spindle drive devices CNC machine tools are mechanical, electrical, hydraulic, pneumatic and optical height
Integration products. To achieve control of the machine, you need to describe the relative motion between the tool and the workpiece with geometric information and process information used to describe
Said machining must have some process parameters. For example: feed rate, spindle speed, spindle rotating, tool change, switch coolant and the like.
This information formed according to a certain format processing file (ie, normal, said NC machining program) is stored on the information carrier (such as disks, punched tape,
Tape, etc.), and then read by the machine tool numerical control system into (or keyboard input directly through the digital system, or by means of communication input), by
Decodes it, so that the operation of the machine tool and machining parts. Modern CNC machine tools are a typical electromechanical integration products, it is a new generation of production technology, computing
Technology base machine integrated manufacturing systems and the like. The development trend of modern CNC machine tools is high-speed, high-accuracy, high reliability, multi-functional, complex
Fit, intelligent and open architecture. The main developments in the research and development of software and hardware with intelligent full-featured open architecture of the number of common
Control devices. CNC machining technology is the basis for automation, CNC machine tools is the core technology, which is related to the level of national and strategic position
It reflects the level of comprehensive national strength. It is with the development of information technology, microelectronics technology, automation technology and testing technology and development.
CNC machine CNC machining center with a magazine and automatic tool change, for a variety of workpiece machining operations can be performed within a certain range
bed. On machining centers characteristic of the part they are: parts to be processed after a fixture, CNC system can control the machine in a different step from
Automatic selection and tool change; automatically change the spindle speed, feed rate and trajectory of the tool relative to the workpiece and other auxiliary functions, continuously
Each machined surface of the workpiece automatically drilling, countersinking, reaming, boring, tapping, milling and other machining processes. Since the processing center can concentrate
And automatically complete a variety of processes, to avoid human operator error, reducing the workpiece clamping, measuring and machine tools to adjust the time and the work flow,
Handling and storage time, greatly improving the processing efficiency and accuracy, and therefore have a good economic benefits. Press spindle machining center space

Location can be divided into vertical machining center horizontal machining center.

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