In the design of xk2116 CNC gantry

In the design of xk2116 CNC gantry boring and milling machine spindle components, there are also the following features.① The front support bearing of the main shaft is located with a hot installed reducer, which is accurate and reliable.② The main shaft does not bear the radial force of gear transmission, only transmits the torque. This is because the power transmitted from the gearbox to the main shaft is transmitted by the inner and outer joint teeth concentric with the main shaft.③ A sleeve is designed on the outer layer of the main shaft, which can be used for the trial run before the general assembly, for the pre adjustment of the accuracy, and for the correction of the parallelism between the main shaft axis and the slide rail.④ According to the special requirements of CNC machine tools, an automatic broach mechanism is adopted in the spindle structure. The mechanism is a simple and reliable broach which is pulled by the disc spring and hydraulic cylinder through the claw.⑤ In order to enhance the function of the machine tool, a radial positioning device (consisting of a signal block fixed on the spindle and a proximity switch) is arranged on the spindle.⑥ All lubrication parts of the spindle are lubricated with high-grade grease, which eliminates oil leakage.