The concept and application of the hottest CNC mac

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The concept and application of numerical control machine tool

numerical control machine tool is the abbreviation of digital control machine tool. It is an automatic machine equipped with program control system. The experimental machine adopts the control systematized machine tool based on neuron self-adaptive. The control system can logically process the program with control code or other symbolic instructions and decode it, so as to make the machine operate and process parts

the control of CNC machine tools has enabled meimeike to obtain the use and operation method of friction and wear testing machine, which is favored by some electric core factories in the first and second echelons in China. The operation and monitoring of CNC machine tools are all completed in this CNC unit, which is the brain of CNC machine tools

compared with ordinary machine tools, CNC machine tools have the following characteristics:

● high machining accuracy and stable machining quality

● it can carry out multi coordinate linkage, and can process parts with complex shapes

● when machining parts are changed, generally only the NC program needs to be changed, which can save production preparation time

● the machine tool itself has high precision and rigidity. You can choose favorable processing consumption and high productivity (generally 3~5 times that of ordinary machine tools)

● the machine tool has a high degree of automation, which can reduce labor intensity

● higher quality requirements for operators and higher technical requirements for maintenance personnel

CNC machine tools are generally composed of the following parts:

● host, which is the theme of CNC machine tools, including machine body, column, spindle, feed mechanism and other mechanical parts. It is a mechanical part used to complete various cutting processes

● numerical control device is the core of numerical control machine tool, including hardware (printed circuit board, CRT display, key box, paper tape reader, etc.) and corresponding software, which is used to input digital part program, complete input information storage, data transformation, interpolation operation, and realize various control functions

● driving device, which is the driving part of the actuator of CNC machine tool, including spindle drive unit, feed unit, spindle motor and feed motor. Under the control of numerical control device, he realizes the spindle and feed drive through electrical or electro-hydraulic servo system. When several feeds are linked, the addition of positioning, straight line, plane curve and space curve can be completed, which is 25 times that of this kind of ultra light foam

● auxiliary devices, some necessary supporting parts of the index control machine tool, to ensure the operation of the CNC machine tool, such as cooling, chip removal, lubrication, lighting, monitoring, etc. It includes hydraulic and pneumatic devices, chip removal devices, exchange worktables, numerical control turntables and numerical control dividing heads, as well as cutting tools and monitoring and detection devices

● programming and other auxiliary equipment can be used to program and store parts outside the machine

since MIT developed the world's first CNC machine tool in 1952, CNC machine tools have been widely used in manufacturing industry, especially in automotive, aerospace, and military industries. CNC technology has developed rapidly in both hardware and software

machining center

machining center is a highly automated multi-function NC machine tool with tool magazine and automatic tool change device. After the workpiece is clamped on the machining center once, it can complete a variety of processes on more than two surfaces, and has a variety of tool change or tool selection functions, which greatly improves the production efficiency

machining centers can be divided into boring and milling and turning according to their machining processes, and can be divided into three-axis, four axis and five axis machining centers according to the number of control axes

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