Automatic bolt driving apparatus for driving bolts to secure elo

Details Automatic bolt driving apparatus for driving bolts to secure elo Automatic bolt driving apparatus for driving bolts to secure elo

1996-05-10

1998-03-24

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5724, B25B 2900, B25B 1300

Patent

active

057300348

ABSTRACT:
A movable automatic bolt driving apparatus sequentially drives a plurality of bolts positioned substantially in line on flanges of elongated concrete molding frame segments for producing columnar concrete products. The apparatus has a vertically movable bolt driver unit and an air-cylinder unit. When the bolt driver unit drives a bolt in a state that the socket and the bolt are non-concentrically engaged with each other, the air-cylinder unit causes to properly reposition the bolt driver unit. At least a part of the bolt driver unit, which is normally disposed vertically, is pivotable with a horizontal pivotal axis orthogonal to the moving direction of the apparatus. The apparatus also has a flange follower for guiding the bolt driver unit. At least a part of the flange follower, which includes a roller having a vertical rotating axis, is pivotable about a vertical rotational axis. The rotational axis of the roller is offset toward the moving direction of the apparatus with respect to the rotational axis of the pivotable part of the flange follower. The apparatus further has a sensor unit that detects a tilted state of the pivotable part of the bolt driver unit, another sensor that detects a tilted state of the pivotable part of the flange follower, and a video camera for measuring a position of the bolt that is to be driven succeedingly.

REFERENCES:
patent: 3886821 (1975-06-01), Tokunaga et al.
patent: 5515752 (1996-05-01), Sawano et al.

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