Structural analysis of CNC lathe
The use of CNC lathes can avoid problems such as insufficient structural rigidity, poor earthquake resistance, and high friction resistance on the sliding surface. And it is very helpful to improve turning efficiency and reduce cost expenditure.
1. Spindle and spindle box: The rotation accuracy of the Yunnan CNC lathe spindle has a great influence on the accuracy of processed parts, and its power, rotation speed, etc. also have a certain impact on the processing efficiency. If the spindle box has a high-level automatic speed adjustment function, the transmission structure of the spindle box has been simplified. As for the retrofit type with dual functions of manual operation and automatic control of processing, basically the original spindle box is still retained.
2. Guide rails: The guide rails of Yunnan CNC lathes provide guarantee for the feed movement. To a large extent, it will have a certain impact on the stiffness, accuracy and stability of low-speed feed of the lathe. This is also one of the important factors affecting the quality of parts processing. In addition to some of the traditional sliding guide rails, Yunnan CNC lathes that have been finalized and produced have mostly used plastic-coated guide rails.
3. Mechanical transmission mechanism: In addition to some gear transmission and other mechanisms in the spindle box, Yunnan CNC lathes have made some simplifications on the basis of the original ordinary lathe transmission chain. The hanging wheel box, feed box, slide box and most of the transmission mechanisms are cancelled, only the longitudinal and transverse feed screw transmission mechanisms are retained, and additional ones are added between the drive motor and the lead screw (a few lathes do not have additional ones) A gear pair that can eliminate its backlash.
