Abstract
The preload in ball screws does not just have positive effects on zero backlash and rigidity, moreover it increases the friction loss which leads to heating and wear as well as a reduction of fatigue life of ball screws. With this background a system is introduced which allows variable set-up and control of the preload in ball screws. A ring-shaped piezoelectric translator is used as actuator, the design and characteristic features of which are described. The improvements obtained by the principle of preload-control are described by means of test results. Advantages for the manufacturing processes, such as an increase in tool life for machining with interrupted cut, are expected by the possibility of variation of damping and rigidity of the forward feed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
