Although CNC machine tools also have ordinary machine tools have the bed and column, guideway, table, tool holder and other components. However, in order to match the high precision and high speed control of the control system, the structural design of the host part of the machine tool also puts forward the requirements of high precision, high stiffness, low inertia, low friction, no clearance, high resonance frequency, appropriate damping ratio. As the form of mechanical structure is a specific means of reflecting its performance, is the core factor in achieving performance (of course, the structure is also affected by the material and process), therefore, the key components of CNC machine tools in the structural design has also made significant changes.

The main components of the mechanical structure of CNC machine tools

    1 Main transmission system;

    2 feeding system.

    3 Realisation of workpiece rotation, positioning devices and accessories;

    4 to achieve certain parts of the action and auxiliary functions of the system and devices, such as hydraulic, pneumatic, lubrication, cooling and other systems and chip removal, protection and other devices:

    5 Tool holders or automatic tool changers (ATC).

    6 Automatic pallet changers (APC);

    7 Special function devices, such as tool breakage monitoring, accuracy detection and monitoring devices;

    8 Various feedback signal devices and components for the completion of automated control functions.