Machining centers are often divided into vertical machining centers and horizontal machining centers according to the state of the main shaft in space. The main shaft of the machining center is in a vertical state in space called a vertical machining center, and the main shaft in a space in a horizontal state is called a horizontal machining center. type machining center. The main shaft can be converted vertically and horizontally, which is called vertical and horizontal machining center or five-sided machining center, also known as compound machining center. According to the number of columns in the machining center; there are single column type and double column type (gantry type).

            According to the number of movement coordinates of the machining center and the number of coordinates controlled at the same time: there are three-axis two-linkage, three-axis three-linkage, four-axis three-linkage, five-axis four-linkage, six-axis five-linkage, etc. Three-axis and four-axis refer to the number of motion coordinates of the machining center, and linkage refers to the number of coordinates that the control system can control at the same time, so as to realize the position and speed control of the tool relative to the workpiece.

            According to the number and function of the workbench: there are single-workbench machining centers, double-workbench machining centers, and multi-workbench machining centers.

           According to the machining accuracy: there are ordinary machining centers and high-precision machining centers. For ordinary machining centers, the resolution is 1μm, the maximum feed speed is 15~25m/min, and the positioning accuracy is about 10μm. High-precision machining center with a resolution of 0.1μm, a maximum feed speed of 15-100m/min, and a positioning accuracy of about 2μm. Between 2~l0μm, with more than ±5μm, it can be called precision level.