Lathe is a widely used machine tool in processing and production. Its spindle is particularly important proportion in the structure of the lathe, and its performance has a great impact on the quality of processing products. Therefore, a good quality spindle is particularly important.
The spindle of the lathe is the rotating part of the lathe, which supports the workpieces to be processed under the action of the tool. The spindle is tilted at an angle to the working axis of the lathe, which is convenient for clamping the parts to be machined and imbalances the cutting force. The occurrence of the phenomenon has caused the process accuracy of the lathe to be ensured.
Currently, materials and manufacturing processes for lathe spindles are mainly used in steel and copper alloy, and the steel material is mainly used for the spindle produced by rough car and some ordinary lathes. The steel material used for spindles includes bearing steel and alloy structural steel. The main properties of bearing steel are: high hardness, good wear resistance, good welding performance and good toughness. While the spindle produced by precision lathe must use alloy structure steel. The alloy structure steel has the characteristics of light weight, high hardness, good wear resistance and so on.
The manufacturing process of the spindle is basically the same as other machine tools. The main process is heat treatment, machining and surface treatment. The heat treatment process mainly includes annealing, tempering, quenching and other processes, which can make the spindle material obtain the best comprehensive mechanical properties. Tempering can reduce the internal stress generated in quenching, increase the toughness, improve the hardness and plasticity of the spindle, and make the spindle material obtain the best comprehensive mechanical properties.
Surface treatment is mainly for the spindle to improve its corrosion resistance and improve the adhesion force between the component and the surface of the component. The method of surface treatment includes galvanized phosphating and electroplating, which can effectively improve the corrosion resistance of the component, thereby further improving the durability, reliability and corrosion resistance of the component.
The spindle of the lathe is an important component for ensuring the machining accuracy of the lathe. The material selection and manufacturing process of the spindle must be carefully considered to ensure the quality of the spindle and ensure the machining accuracy of the lathe.
