Price of single column vertical lathe

Price of single column vertical lathe

What are the effects of NC vertical lathe speed on machining

Once the limit speed of the machine tool spindle is exceeded, some small problems existing in the machine tool will sometimes become extremely serious big problems. When using vertical lathe for metal cutting, the spindle speed has a significant impact on the machining process. In the low speed or common speed range of the spindle, it has little effect on its machining quality.

Between cutting speed and machining quality, the selection of various cutting parameters will follow the law revealed by cutting theory. Machining beyond the limit value or at a higher spindle speed will cause the increase of cutting temperature, the greater centrifugal force of the workpiece, and the vibration of the machine tool. The higher the spindle speed is, the greater the force (centrifugal force) of stretching parts outward from the rotating shaft is. Especially in finishing, the centrifugal force has a greater impact on the spindle bearing.

The fixed value of the cutting speed of the NC vertical lathe is. To ensure the accuracy of the machined parts and control the spindle speed of the machine tool, the constant cutting speed can be realized through the command G96 in the control system. The program executes the constant speed command by controlling the speed of DC motor or variable-frequency three-phase motor. With the reduction of machining diameter, in theory, the cutting speed can increase infinitely, but at high speed, due to the excessive radial force generated by the workpiece, the stress of the fixture will increase sharply, resulting in the damage of the fixture and the vertical lathe body and other accidents.

When machining parts, when the circumferential cutting speed is constant, the roughness of the workpiece surface after turning can be kept consistent, and the service life of the tool can be improved. After setting a constant cutting speed, the speed of the spindle changes at different diameters of the workpiece. When cutting the large diameter of the workpiece, the spindle speed is low. The spindle speed is higher at the small diameter of the cutting workpiece. If the spindle speed is too high, the workpiece will be in danger of flying out, so it is necessary to limit the limit speed of the spindle.

Dalian Fenghua CNC Machine Tool Manufacturing Co., Ltd. is a professional machine tool equipment manufacturer specializing in CNC vertical lathe, Dalian single column double lifting vertical lathe, Dalian double column CNC vertical lathe and Dalian high-speed CNC lathe. Friends from all walks of life are welcome to negotiate and consult!