Analysis of CNC machine tools

There are two types of CNC machine tools: one without a tool magazine is called CNC milling, and one with a tool magazine is called CNC machining center. CNC is an automated machine tool equipped with a program control system. The control system can logically process programs with control codes or other symbolic instructions and decode them to make the machine tool move and process parts.

A machining center refers to a CNC machine tool equipped with a tool magazine, with automatic tool changing function, and can perform multi-process processing on workpieces after one clamping.

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 replace tools according to different processes, automatically set the tool, automatically change the spindle speed, feed amount, etc.

It can continuously complete drilling and boring. , milling, reaming, tapping and other processes. Therefore, it greatly reduces the workpiece clamping time, measurement and machine tool adjustment and other auxiliary process time, and has good economic effects for processing parts with complex shapes, high precision requirements, and frequent variety changes.

Machining centers are usually classified based on 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 a machining center with the spindle axis and the workbench set parallel to each other. It is mainly suitable for processing box-type parts.

2) Vertical machining center: refers to a machining center with the spindle axis set perpendicularly to the workbench. It is mainly suitable for processing complex parts such as plates, disks, molds and small shells.

3) Universal machining center (also known as multi-axis linkage machining center): It refers to a machining center that can control linkage changes through the angle of the machining spindle axis and the worktable rotation axis to complete complex spatial surface processing. It is suitable for processing workpieces such as impeller rotors, molds, and cutting tools with complex spatial surfaces.