Primarily introduced the YX-TK212 type to turn toward stanza CNC boring machine the processing of bed the craft,machine bed the construction,main technique of numbered.

The method of CNC boring machine processing drilling pump rack,by rotating precision of CNC boring machine,the sub-head power is used to process for improving the rack shape and location of processing accuracy,so efficiency is improved.

NC boring-milling machine is an important die manufacturing equipment.

Some technical problems were solved,such as double-bracing guideway with lubricated rolling-sliding contact square ram,bow and bending deformation and so on,which offered a typical case for large and heavy type of NC boring-milling machine.

This paper aims at how to improve the working precision of TKP6111/3 Economical CNC milling and boring machines.

A research report on the transformation of digital controlled boring machine of type 2в622ф 1 made in Russia;

This paper expounds the necessity of being adopted the new technology, high speed cutting, in the CNC double column boring and milling machine.

The determination of the main spindle structure parameters and the characters of the spindle structure design are introduced on the XK2116 CNC double column boring and milling machine.