Composite motion guiding unit and composite motion guiding appar

Details Composite motion guiding unit and composite motion guiding appar Composite motion guiding unit and composite motion guiding appar

1990-09-19

1992-06-16

Lorence, Richard

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

744248R, 74459, 384551, 384563, F16H 2522

Patent

active

051216477

ABSTRACT:
A composite motion guiding unit comprises a shaft provided with helical ball screw grooves formed in the outer peripheral surface thereof and ball spline grooves formed in the outer peripheral surface thereof so as to extend in the axial direction of the shaft across the ball screw grooves and a ball screw nut and a ball spline outer cylinder both mounted on the shaft to be engageable with the ball screw grooves and ball spline grooves respectively through a number of balls. The ball screw nut and the ball spline outer cylinder are both supported by a housing to be rotatable through bearings and are driven by driving means to rotate the same, thus constituting a composite motion guiding apparatus. The ball screw grooves and the ball spline grooves have depths equal to each other.

REFERENCES:
patent: 4205885 (1980-06-01), Ernst et al.
patent: 4939946 (1990-07-01), Teramachi

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