CNC machining center, also known as multi-process automatic tool changing CNC machine tool, is a metal cutting equipment with the largest output in the world and the most extensive use in the modern machinery manufacturing industry.

The control system of the machining center has many functions. The machine tool has at least three motion coordinate axes, and more than a dozen axes. Its control function requires at least two axis linkage control to realize straight-line interpolation and arc interpolation of tool movement. Most of them can carry out five-axis linkage and six-axis linkage to complete the machining of more complex surfaces. 

The machining center also has various auxiliary functions, such as processing fixed cycle, automatic compensation of tool radius, automatic compensation of tool length, alarm of tool damage, tool life management, automatic protection of overload and overtravel, lead screw pitch error compensation, lead screw gap compensation, automatic fault diagnosis, graphic display of workpiece and machining process, man-machine dialogue, workpiece online detection, offline programming, etc., which are helpful to improve the processing efficiency of the equipment It plays a positive role in ensuring the processing accuracy and quality of products.

The prominent feature of the machining center is that it is equipped with a tool magazine, in which various cutting tools or inspection tools are stored, which are automatically selected and replaced by the program during the machining process. This is the main difference between the machining center and the CNC milling machine and the CNC boring machine.

horizontal machining center can be divided into four categories according to different functional features:

 1.Boring and milling machining center

The boring and milling machining center is mainly used for boring and milling. It is suitable for multi-process machining of special curves and curved surfaces of boxes, shells, and various complex parts. The word "machining center" generally refers to boring and milling machining centers, while attributes should be added in front of machining centers with other functions, such as turning centers, drilling centers, etc. For specific products, click six-axis horizontal boring and milling machining center to learn about the detailed product introduction.

 2.Drilling machining center

The drilling machining center is mainly for drilling, and the tool magazine is mainly in the form of a turret head. It is suitable for drilling, reaming, reaming, tapping, and other multi-process processing of small and medium-sized parts.

 3.Turning center

The turning center is mainly for turning, and the main body is a numerical control lathe. The machine tool is equipped with a turret-type tool magazine or a tool magazine composed of a tool-changing manipulator and a chain-type tool magazine. The CNC system of the machine tool is mainly composed of two or three axes, i.e. x, Z, and C axes. Some high-performance turning centers are equipped with milling power heads.

 4.Compound machining center

A machining center that can complete turning, milling, boring, drilling, and other multi-process processing on one piece of equipment is called a composite machining center, which can replace multiple machine tools to realize multi-process processing. This method can not only reduce the loading and unloading time, and improve the production efficiency, but also ensure and improve the shape and position accuracy. A compound machining center refers to a five-sided compound machining center. Its spindle head can rotate automatically for vertical and horizontal machining. Readers can see the introduction of our five-axis drilling and milling compound machine tool.

The machining center can be divided into three-axes two linkages, three-axis three linkages, four-axis three linkages, five-axis four linkages, six-axis five linkages, multi-axis linkage straight line + rotation + spindle swing, etc. according to the difference between the number of motion coordinates and the number of coordinates controlled at the same time. 

Three-axis and four-axis refer to the number of motion coordinates of the machining center. Linkage refers to the number of motion coordinates that the control system can control at the same time, to realize the position and speed control of the tool relative to the workpiece.

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