车床主轴间隙的调解(国外英文资料).docVIP

车床主轴间隙的调整(国外英文资料) Adjustment of spindle clearance of lathes Lathe in the course of long time use, often can wear, deformation, caused by error of lathe itself, or various clearance changes, directly affect the machining precision of lathe, even is related to productivity and operation safety. For example, when the friction clutch of the spindle box of the lathe is not properly adjusted, it directly affects the full play of the effective power of the lathe. Again, when the rotator does not adjust properly, the main shaft will turn when it is stopped, which will affect the operation safety. The adjustment of the lathe can be divided into the lathe clearance adjustment, the adjustment of the power transmission mechanism as well as other parts of the adjustment of three, below to apply the common C620, C620-1 lathe is given priority to, describe the three adjustment methods. The main shaft is the most important part of lathes, which bear a heavy load during the turning. Therefore, when the bearings are not properly adjusted, the defects are produced in the processing. For example, the main shaft bearing clearance is too large, and the spindle will produce axial movement and radial pulsation while turning, and reduce the quality of the workpiece. On the other hand, if the main shaft bearing is too small, the main shaft will be damaged by high fever in high speed rotation. Therefore, in the event of these abnormal phenomena, it is necessary to adjust the gap of the main shaft bearing in time. The adjustment requirement of main shaft bearing clearance is mainly to make the main shaft in the turning of the car without causing vibration and overheating. The radial clearance and axial clearance of main shaft bearing are described below respectively. Adjusting the radial clearance of main shaft bearing Turning the spindle radial movement is the main reason of the spindle front bearing radial clearance is too large, so the adjustment of main shaft bearing radial clearance, mai