Machining center is a CNC machine tool that can automatically change tools and process the clamped workpiece in multiple processes.
Machining center is developed from CNC milling machine, and the biggest difference with CNC milling machine is that machining center has the ability to automatically exchange machining tools. By installing tools with different purposes in the tool magazine, the machining tools on the spindle can be replaced by the automatic tool changing device in one clamping, and various machining functions can be realized.
CNC machining center is one of the most productive and widely used CNC machine tools in the world. Its comprehensive processing ability is strong, and more processing contents can be completed by one-time clamping of the workpiece, with high processing accuracy. The efficiency of medium-processing-difficult batch workpieces is 5- 10 times that of ordinary equipment, especially it can complete many processing that ordinary equipment can't, and it is more suitable for single-piece processing with complex shape and high precision requirements or small and medium-sized batch and multi-variety production.
Classification of machining centers:
According to the state of the spindle in space, machining centers are usually divided into vertical machining centers and horizontal machining centers. When the spindle is vertical in space, it is called vertical machining center, and when the spindle is horizontal in space, it is called horizontal machining center. The spindle can be converted vertically and horizontally, which is called vertical and horizontal machining center or five-sided machining center, also called composite machining center. According to the number of machining centers; There are single-column and double-column (gantry).
According to the number of coordinates of machining center movement and simultaneous control, there are three axes and two linkages, three axes and three linkages, four axes and three linkages, five axes and four linkages, six axes and five linkages, etc. Three axes and four axes refer to the number of motion coordinates of the machining center, and linkage means that the control system can control the number of motion coordinates at the same time, thus realizing 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.