The more famous CNC machine tools in China include: Shenyang Machine Tool, Dalian Machine Tool\, Hanchuan Machine Tool, Qiyi, Qier\, Jinan Machine Tool, and Guilin Machine Tool.

CNC machine tools are classified as follows:

Classification application

Classification by process use

Metal cutting CNC machine tools, including CNC lathes, CNC Drilling machines, CNC milling machines, CNC grinders, CNC boring machines and machining centers. These machine tools are suitable for single-piece, small batch and multi-variety parts processing, and have good processing size consistency, high productivity and automation. , and high equipment flexibility.

Metal forming CNC machine tools; such machine tools include CNC bending machines, CNC combination punches, CNC pipe benders, CNC rotary head presses, etc.

CNC special processing machine tools; such machine tools include CNC wire (electrode) cutting machine tools, CNC EDM machine tools, CNC flame cutting machines, CNC laser cutting machine tools, special combination machine tools, etc.

Other types of CNC equipment; non-processing equipment using CNC technology, such as automatic assembly machines, multi-coordinate measuring machines, automatic plotters and industrial robots.

Folding is classified according to the movement mode

●Point control

The characteristic of point control CNC machine tools is that the moving parts of the machine tool can only move from one position to another. Precise movement of a position without any processing steps during movement and positioning. Such as CNC drilling machines, CNC coordinate boring machines, CNC welding machines and CNC pipe bending machines, etc.

●Linear control

The characteristic of point-position linear control is that the moving parts of the machine tool must not only achieve precise movement and positioning from one coordinate position to another, but also achieve parallel coordinates The linear feed motion of the axis or the oblique feed motion by controlling two coordinate axes.

●Contour control

The characteristic of contour control CNC machine tools is that the moving parts of the machine tool can realize linkage control of two coordinate axes at the same time. It not only requires controlling the starting point and end point coordinate position of the machine tool's moving parts, but also requires controlling the speed and displacement of each point in the entire processing process, that is, it requires controlling the motion trajectory to process the part into a straight line, a curve in a plane, or a curved surface in space. .

Classified by control method

●Open-loop control

That is, a control method without a position feedback device.

●Semi-closed loop control

Refers to the open-loop control servo motor shaft equipped with an angular displacement detection device, which indirectly detects the displacement of the moving parts by detecting the rotation angle of the servo motor and feeds it back to the CNC The comparator of the device compares the input command with the input command, and uses the difference to control the moving parts.

●Closed-loop control

It is a direct linear or rotary detection device at the corresponding position of the final moving part of the machine tool, and the directly measured displacement or angular displacement value is fed back to the CNC device Compare it with the input command displacement in the comparator, and use the difference to control the moving parts so that the moving parts move strictly according to the actual required displacement.

Classification according to the performance of numerical control machine tools

Economic CNC machine tools; mid-range CNC machine tools; high-end CNC machine tools;

Classification according to the composition of the CNC device used< /p>

Hard wire CNC system; soft wire CNC system;