CNC machine tools:
Turning, milling, planing, grinding, boring, drilling, electric discharge, shearing, bending, laser cutting, etc. are all machining methods. The so-called machining is to process metal blank parts into the required shape, including dimensional accuracy. And geometric accuracy. The equipment that can complete the above functions is called a machine tool. CNC machine tools are developed on ordinary machine tools. CNC means digital control.
After the machine tool is equipped with a numerical control system, the machine tool becomes a numerical control machine tool. Of course, the development of an ordinary machine tool to a CNC machine tool is not just a simple installation of a system. For example, from a milling machine to a machining center, the structure of the machine tool has changed. The most important thing is the addition of a tool magazine, which greatly improves the accuracy. The main function of the machining center is the functions of milling, boring and drilling.
What we generally call CNC equipment is mainly index-controlled machine tools and machining centers.
Machining center refers to a CNC machine tool equipped with a tool magazine, with automatic tool change function, and multi-process processing after clamping the workpiece at one time. The machining center is a highly mechatronic product. After the workpiece is clamped, the CNC system can control the machine tool to automatically select and change tools according to different procedures, automatically set the tool, automatically change the spindle speed, feed, etc., and can continuously complete drilling, boring, and Various processes such as milling, reaming, and tapping. As a result, it greatly reduces the time for workpiece clamping, measurement and machine tool adjustment and other auxiliary processes. The processing shape is more complicated, the accuracy requirements are higher, and the parts with frequent replacement of varieties have good economic effects.
Machining centers are usually classified according to the relative position of the spindle and the worktable, and are divided into horizontal, vertical and universal machining centers.
(1) Horizontal machining center: refers to the machining center with the spindle axis parallel to the worktable, which is mainly suitable for processing box parts.
(2) Vertical machining center: refers to the machining center with the spindle axis perpendicular to the worktable. It is mainly suitable for processing complex parts such as plates, plates, molds and small shells.
(3) Universal machining center (also known as multi-axis linkage machining center): refers to a machining center that can control and change the angle between the machining spindle axis and the rotation axis of the worktable to complete complex space surface processing. It is suitable for the processing of impeller rotors, molds, cutting tools and other workpieces with complex spatial curved surfaces.
Regardless of whether it is used for machining centers or data-controlled lathes, the tools and suction cups used when machining workpieces are very important. With the rapid development of the industrial field, many machining centers and CNC machine tools use electro-permanent magnetic chucks as Tooling fixtures can delay the service life of the tool, connect to the CNC system, and improve the precision of the processed workpiece.
