The classification of the most professional CNC machine
From:Taian Haishu Machinery Co.,Ltd. Updatetime:2016-5-25 10:23:59 Views：
Nc machine tools, CNC machine tool manufacturers, nc machine tools, CNC machine classification price
Professional - the classification of the nc machine tool nc machine tools
1, according to the processing method of classification
Ordinary numerical control machine
For different process need, the common nc machine tools with numerical control lathe, milling machine, drilling machine, boring machine and grinding machine, etc., and each category has a lot of varieties.
CNC machining center
CNC machining center is with a knife library and automatic tool change device of nc machine tools.Typical numerical control machining center are boring and milling machining center and turning center.
The nc machine tools
Multi-axis linkage CNC machine tools, its characteristic is the numerical control device can control at the same time more axis, machine tool structure is more complex.Axis of the number of how many depends on the complexity of the processing parts and technical requirements, now commonly used four, five, six coordinate linkage CNC machine tools.
Numerical control special machine tools
Including nc special electric spark machine tools, CNC wire cutting machine, CNC laser cutting machine, etc.
2, the classified by ways of controlling movement
Position control of CNC machine tools
This kind of machine tool control only the moving parts move from one point to another point of accurate position, do not carry on the processing, in the process of moving to movement speed and movement between two points no strict requirement, can the multiple coordinate moving at the same time, also can move along the coordinate successively.The position control of machine tools with nc drilling machine, CNC jig boring machine, CNC punch press and CNC measuring machine, etc.
Linear control of CNC machine tools
This kind of machine is not only to the control points of accurate positioning, and to control (or table) at a certain speed along the direction parallel to the axis of machining.
Profile control of CNC machine tools
This kind of machine to two or more than two coordinates of displacement and speed control in a row, the synthesis of plane or space trajectory can meet the requirements of a contour.
Profile control of nc machine tool with CNC milling machine, lathe, grinding machine and machining center, etc.
3, according to the type classification of the feed servo system is used
Open loop nc machine tools
Open-loop CNC machine adopts open-loop feed servo system, servo drive components are usually reactive stepper motor or hybrid stepping motor servo.
Closed loop nc machine tools
Closed loop nc machine tool feed servo system is a closed-loop principle of work, with a linear displacement detection device, directly testing the actual displacement of the workbench.Servo drive parts usually adopt dc servo motors and ac servo motor.
A half closed loop nc machine tools
This kind of control system and the difference between the closed-loop control system USES the angular displacement detecting element, detection feedback signal comes not from the workbench, but from associated with motor angular displacement detecting element.
4, according to the given numerical control device type of classification
Hardware type nc machine tool
Hardware type NC machine tool numerical control (NC) machine tool use hardware type device, its input, mending operation and control functions are accomplished by dedicated fixed combinational logic circuit, the different function of machine tool, the combination logic circuit is not the same.Change or increase or decrease in control, operation function, need to change the hardware circuit of nc device.
Software type nc machine tool
This kind of nc machine tools using device computer numerical control (CNC).The hardware circuit of this numerical control device is by small or micro computer plus universal or special large scale integrated circuit.Almost all the main functions of the nc machine tool by the system software to realize, so the different functions of the system software tools are different, and to modify or increase or decrease the system function, does not need to change the hardware circuit, only need to change the system software.
According to the function of the numerical control device level classification
According to this classification method of nc machine tool can be divided into low, medium, high-grade three categories.
