The key technology for precision machining of CNC lathes and turning parts factory. The overall comprehensive design technology of lathe parts and machine tool systems. The design and manufacture of conventional machine tools have great tolerance in all aspects of technology. Each link of the ultra-precision machine tool is basically in a state of technical limit or critical application. A little consideration or improper handling of any link will lead to overall failure. Therefore, the design requires a very comprehensive and profound understanding of the machine tool system as a whole and each part of the technology. According to the feasibility, starting from the overall best, the comprehensive design of the association must be carried out in an extremely detailed manner. High-rigidity, high-stability machine tool body structure design and manufacturing technology. Especially for LODTM machine tools, due to the large body and weight of the machine, the weight of the load-bearing workpiece varies greatly, and any slight deformation will affect the machining accuracy. In addition to meeting the requirements in terms of materials, structure and technology, the structural design must also take into account the operability of the machine tool during operation.

Ultra-precision workpiece spindle technology in CNC lathe turning factory. Small and medium-sized machine tools often adopt aerostatic spindle solutions. The aerostatic spindle has low damping and is suitable for high-speed rotary processing applications, but has a small load-bearing capacity. The rotation accuracy of the aerostatic spindle can reach 0.05μm. The LODTM machine tool spindle carries a large workpiece size and weight. Generally, a hydrostatic spindle should be used. The hydrostatic main shaft has large damping, good vibration resistance and large bearing capacity, but the hydrostatic main shaft generates heat at high speed and requires liquid cooling and constant temperature measures. The rotation accuracy of the hydrostatic spindle can reach 0.1μm. In order to ensure the accuracy and stability of the spindle, regardless of the air pressure source or the hydraulic source, constant temperature, filtration and pressure precision control processing are required.

High-precision gas, liquid, temperature, vibration and other working environment control technology for lathe parts. Machine tool vibration isolation and horizontal attitude control. The impact of vibration on ultra-precision machining is very obvious, even for long-distance cars. Vibration isolation of the machine tool requires special foundation treatment and combined measures of air floatation and vibration isolation of the machine body. The air-floating vibration isolation system of the machine tool body also needs to have an automatic leveling function to prevent the impact of changes in the horizontal state of the machine tool on the processing. For machine tools with high LODTM vibration isolation requirements, the natural frequency of the vibration isolation system is required to be below 1HZ.