In recent years, China has continuously made corresponding changes and adjustments to the industry, and gradually established a stage for the planned economy, following the footsteps of the information age and market economy. With the rational allocation of resources worldwide, China's manufacturing industry has entered a new stage of development, but this has also made corresponding progress in industrial demand.
The precision, stiffness and thermal deformation of the CNC lathe spindle parts of CNC lathe manufacturers directly affect the machining quality. Since CNC lathes do not require manual adjustment during processing, these effects are even more serious. At present, there are three main ways of CNC lathe spindles.
The front bracket includes a double-row short cylindrical roller bearing and a 60 ° angular contact double-row radial thrust ball bearing. The rear bracket is equipped with a pair of radial thrust ball bearings. This structure greatly improves the overall rigidity of the spindle, can meet the requirements of solid chips, and is widely used in various CNC lathes of small CNC lathe manufacturers. The front bearings use high-precision double-row angular contact ball bearings, and the rear bearings use single-row (or double-row) angular contact ball bearings. This equipment has excellent high-speed performance but small load carrying capacity, so it is suitable for high-speed, light-load and fine CNC lathe spindles.
Double-row and single-row tapered bearings are used for front and rear bearings, respectively. This structure limits the high speed and accuracy of the spindle, and is suitable for the spindle of medium precision, low speed and heavy CNC lathes. Stepper motors and single-chip microcomputers are used to transform simple CNC lathes composed of ordinary lathe feed systems, but the cost is low, but the degree of automation and functions are poor, and the turning accuracy is not high. Suitable for low-demand rotating parts.
According to turning requirements, CNC lathes are specially planned and equipped with a universal CNC system. The CNC system has powerful functions, high degree of automation and high machining accuracy. Suitable for turning general turning parts. CNC lathe can control two axes at the same time, namely X axis and Z axis.