静圧送りねじの研究(第3報) : 加工の容易さと静剛性の向上を目的とするものの試作研究

概要

論文の詳細を見る
Two types of hydrostatic lead screws, designed aiming at easier manufacture and higher statical stiffness, were manufactured on trial. In Type 1 the nut is constructed by four sector shaped pieces and four plates sandwiched in four spaces between the aforementioned pieces in order to form the four sector type recesses. In Type 2 the nut is a single block, but full area of screw surfaces are utilized as recesses by sealing at crests and roots of nut threads. Main results of theoretical calculation and experiments on the statical stiffness are as follows : (1) In Type l, the experimental value of statical stiffness is 40 N/μm, the theoretically calculated value is 53 N/μm, and their ratio is O.75,being regarded as improved against the case of the same type screws in the previous report. (2) In Type 2,the experimental value of statical stiffness is 15 N/μm, the theoretically calculated value is 86 N/μm, and their ratio is O.17. The reason of this undesirable results of the experiment is considered mainly due to leakage of hydraulic oil through seals
公益社団法人精密工学会の論文
1983-07-05