The main body of CNC machine tools

The main body of CNC machine tools
The machine tool host is the main body of CNC machine tools. It includes mechanical components such as the bed, base, column, crossbeam, sliding seat, workbench, spindle box, feed mechanism, tool holder, and automatic tool changing device. It is a mechanical part that automatically completes various cutting processes on a CNC machine tool. Compared with traditional machine tools, the main body of CNC machine tools has the following structural characteristics:
1) Adopting a new machine tool structure with high stiffness, high seismic resistance, and small thermal deformation. Usually, methods such as increasing the static stiffness of the structural system, increasing damping, adjusting the mass and natural frequency of structural components are used to improve the stiffness and seismic resistance of the machine tool main body, so that the machine tool main body can adapt to the needs of CNC machine tools for continuous and automatic cutting processing. Measures such as improving the structural layout of the machine tool, reducing heat generation, controlling temperature rise, and adopting thermal displacement compensation can reduce the impact of thermal deformation on the machine tool host.
2) The widespread use of high-performance spindle servo drive and feed servo drive devices shortens the transmission chain of CNC machine tools and simplifies the structure of machine tool mechanical transmission systems.
3) Adopting high transmission efficiency, high precision, and gapless transmission devices and moving components, such as ball screw nut pairs, plastic sliding guides, linear rolling guides, static pressure guides, etc.