CNC lathes are widely used in various fields. The use of CNC lathes can avoid problems such as insufficient structural rigidity, poor seismic resistance, and high frictional resistance on sliding surfaces. Moreover, it is of great help in improving turning efficiency and reducing cost expenditures. Below, the editor will describe the structural analysis of a CNC lathe for you:

1、 Spindle and spindle box: The rotational accuracy of the CNC lathe spindle has a significant impact on the accuracy of the machined parts, and its power, rotational speed, and other factors also have a certain impact on machining efficiency. If the spindle box has a stepwise automatic speed regulation function, the transmission structure of the spindle box has been simplified. For the modified type with dual functions of manual operation and automatic control processing, the original spindle box is basically still being retained.

2、 Guide rail: The guide rail of a CNC lathe provides assurance for feed motion. To a large extent, it will have a certain impact on the stiffness, accuracy, and smoothness of the lathe during low-speed feed, which is also one of the important factors affecting the quality of part processing. In addition to using traditional sliding guides in some cases, CNC lathes that have been standardized for production have already adopted more plastic coated guides.

3、 Mechanical transmission mechanism: In addition to some gear transmission mechanisms inside the spindle box, 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 their transmission mechanisms have been cancelled, and only the spiral transmission mechanisms for longitudinal and transverse feed have been retained. A gear pair that can eliminate its side clearance has been added between the driving motor and the screw (not added in a few lathes).