The key technology of precision machining of lathe parts. Conventional machine tool design and manufacturing, all links are technically
Very tolerant. Each link of the ultra precision machine tool is basically in a technical limit or critical application state, which link is considered or not treated slightly.
Week, it will lead to overall failure. Therefore, it is necessary to have a very comprehensive and profound understanding of the whole machine tool system and each part of the technology in design. need
According to the feasibility, proceed from the overall optimization, and carry out the comprehensive design in a very detailed way. Design and manufacture of machine tool body structure with high rigidity and stability
Technology. Especially for LODTM machine tools, due to the large body, its own weight, and the large change in the weight of the bearing workpiece, any small deformation will affect the processing
Precision. In addition to meeting the requirements in terms of materials, structural forms and processes, the structural design must also take into account the operability of the machine tool during operation.
Ultra precision spindle technology for lathe parts. The scheme of aerostatic spindle is often adopted for medium and small machine tools. The aerostatic spindle has small damping and is suitable for high speed
Rotary machining application, but the bearing capacity is small. The rotary accuracy of aerostatic spindle can reach 0.05 μ m。 LODTM machine tool spindle bearing workpiece ruler
With large size and weight, hydrostatic spindle is generally preferred. Hydrostatic spindle has large damping, good vibration resistance and large bearing capacity,
but High speed heating, liquid cooling and constant temperature measures shall be taken. Hydrostatic spindle rotation accuracy can reach 0.1 μ m。 To ensure the accuracy and stability of the spindle
No matter the air pressure source or the hydraulic pressure source, it needs constant temperature, filtering and precision control of pressure.
High precision air, liquid, temperature, vibration and other working environment control technologies for lathe parts. Vibration isolation and horizontal attitude control of machine tool. Vibration for ultra precision machining
The influence of is very obvious, and far driving cars have influence. Special foundation treatment and air floating vibration isolation composite measures shall be taken for machine tool vibration isolation
Implementation. The air floating vibration isolation system of the machine tool body shall also have the automatic leveling function to prevent the influence of the horizontal state change on the processing during the processing of the machine tool. about
For machine tools with high LODTM vibration isolation requirements, the natural frequency of the vibration isolation system is required to be below 1HZ
