The structure of table top cnc milling machine

(1) Basic components. It is the basic structure of the table top cnc milling machine. It consists of a bed, a column and a workbench. They mainly bear the static load of the table top cnc milling machine and the cutting load generated during processing, so they must have sufficient rigidity. These large parts can be cast iron parts or welded steel structural parts. They are the largest volume and weight parts in the table top cnc milling machine. Our machine castings are made of high-grade Meehanite castings, which have high stability after heat treatment. (2) Spindle parts. It is composed of main shaft box, main shaft motor, main shaft and main shaft bearing. The spindle's start, stop and speed change are all controlled by the numerical control system, and participate in the cutting movement through the tool mounted on the spindle, which is the power output part of the cutting process. It is the key component of the table top cnc milling machine, which determines the machining accuracy and stability of the machining center. (3) Numerical control system. The numerical control part of table top cnc milling machine is composed of cNc device, programmable controller PLC, servo drive device and operation panel. (4) Automatic tool change system. It is composed of tool magazine, manipulator drive mechanism and other components. When the tool needs to be changed, the CNC system issues an instruction, and the manipulator (or through other means) takes the tool out of the tool magazine and loads it into the spindle hole. It solves the task of automatic storage, selection, transportation and exchange of tools between processes in the continuous processing of multiple processes after the workpiece is clamped once.