BACK AND FORTH DRIVING MECHANISM FOR BEAM IN TRANSFER DEVICE OF FORGING PRESS

Title:

BACK AND FORTH DRIVING MECHANISM FOR BEAM IN TRANSFER DEVICE OF FORGING PRESS

Document Type and Number:

Japanese Patent JP3751211

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To carry out back and forth driving (opening and closing) of beams F by a link mechanism, and move the beams F on a rectilinear line.
SOLUTION: In the mechanism for back and forth driving the beams F, the beams F are fitted into a guide shaft 21 through arms 24 and move rectilinearly. The both arms 24 are linked with driving/driven links 33, 34 through auxiliary links 35, and the both links 33, 34 are linked through a transmitting link 35, The upper end of the driving link 33 is linked with a ball nut 30 through a link 35. The lengths L1, L2, L3 of link points of each link 33, 34, 35 are respectively the same, and the centers of roration 33a, 34a of the links 33, 34 are symmetrical with respect to a center line O. When a ball screw 25 is rotated by a servomotor 28, the beams F, F are opened/closed through the link mechanism composed of a driving link 37, etc. At this time, since the L1, L2, L3 are respectively of the same length, the moving amount of the ball nut 30 and the moving amount of the beam F becomes the same.

Inventors:

Yuji Kinoshita

Application Number:

JP2001096736A

Publication Date:

March 01, 2006

Filing Date:

March 29, 2001

Export Citation:

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