JPS6317745U - - Google Patents

Description

[Brief explanation of the drawing]

The drawings show an embodiment of this invention;
Fig. 2 is a perspective view of the machine tool, Fig. 3 a, b and Fig. 4 a, b correspond to Fig. 1 a, b. FIG. 5 is a diagram corresponding to FIG. 1b showing another embodiment. In the figure, 1...outer cylindrical body, 2...inner cylindrical body, 2a...stopper, 3...cylindrical part, 4...rod, 5...piston part, 6...rotating shaft, 7, 8...hand, 9...ring,
10...Tsuko.

Claims (1)

[Claims for Utility Model Registration] (1) In a robot equipped with a hand that grips a workpiece using a pick-up mechanism and transports a workpiece from a first work section to a second work section, a drive mechanism that drives the hand , an outer cylindrical body, an inner cylindrical body disposed within the outer cylindrical body so as to be able to reciprocate along the axial direction, and whose movement is regulated at both ends of the outer cylindrical body; a piston portion that is provided so as to be reciprocally movable and whose movement is restricted at both ends of the inner cylindrical body; and a rotation conversion mechanism that transmits the reciprocating displacement of the piston portion to the hand in order to convert the reciprocating displacement into rotational displacement. A robot drive mechanism characterized by: (2) The robot drive mechanism according to claim 1, wherein the rotation conversion mechanism comprises a crank. (3) The robot drive mechanism according to claim 1, wherein the hands are a pair of hands having a predetermined angular interval. (4) The pick-up mechanism is characterized in that it consists of a ring and a plurality of protrusions movably provided on the ring in a radial direction, and the end portions of the protrusions are adapted to expand or contract in diameter as a whole. A robot drive mechanism according to claim 1 of the utility model registration claim.