Structure Of CNC Drilling Machine

According to the principle of tool change and the different structure of machine tools, drilling centers are divided into single spindle type and multi-spindle type. The multi-spindle tool-changing method is to arrange 6 or 8 spindles in the turret radially, and the turret rotates to realize the spindle conversion and automatic tool-changing.

Due to the arrangement of multiple spindles in the turret and the mechanism of main drive, indexing and positioning, the structure of the turret head is complex and the processing is difficult. Because of the size limitation, the rigidity of the spindle is affected to a certain extent, and the position repetition accuracy between the spindles is not ideal.

Because of the above problems in multi-spindle drilling centers, many manufacturers have developed single-spindle drilling centers. It automatically replaces the tool holder with various cutters on the same spindle to realize automatic tool change, and adopts turret tool library to overcome the shortcomings of multi-spindle type. The following figure is a domestic single spindle drilling center.