CNC lathe guide and how to select the screw, to be detailed!
Detailed? The idea of each design is different, mainly to see what you want to do out of the NC car is like?To be honest most of the CNC lathe design engineer, will follow suit, models are similar, most is the shaft end part is different.
1) compared with the sliding screw, the driving torque is 1/3Because there are many ball bearings between the screw shaft of the ball screw pair and the silk mother, the rolling motion can be achieved, so the higher movement efficiency can be obtained. Compared with the past sliding screw pair, the drive torque is less than 1/3, that is, the power required to achieve the same movement result is the 1/3 of the rolling screw pair. It's very helpful in saving electricity.2) high accuracy guaranteeThe ball screw is for mechanical equipment made in Japan, the world's highest level of coherence produced, especially in grinding, assembly, inspection of the operations of the factory environment, carry out strict control of temperature and humidity, due to the improvement of the quality management system to guarantee the accuracy.3) micro feed possibleBecause of the ball motion, the starting torque of the ball screw pair is very small, and the crawling phenomenon like sliding motion can not occur, and the accurate micro feed can be ensured.4) no backlash, high rigidityThe ball screw can be added to the pressure, pressure due to the axial clearance can reach negative, then get high rigidity (ball screw in the ball through to add to the pressure in the actual use mechanical devices, because the ball screw can make the repulsion of the rigidity of the Department of enhancement).5) high speed feed possibleBecause of the high efficiency and small heating, the ball screw can achieve high speed feed (movement).
