Controller for work transfer system
AssigneeKomatsu Ltd.
InventorYukiyoshi Takayama
Life of this patent
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Abstract
A controller for a work transfer system, capable of performing precise positioning of feed bars during sole driving of the transfer system and simplified in structure to contribute to savings in installation space and cost. The controller has a cam angle detector mounted on a cam shaft for feed cams and controls servo motors for respective lift bars according to information which is related to cam angle of the feed cams detected by the cam angle detector and looked up in a motion table set by a transfer controlling PLC serving as a motion table setting means.
Claims5
A controller for a work transfer system, which moves feed bars in the direction of a feed axis through feed cams and in the direction of a lift axis by means of a multiple servo driver mechanism and which comprises:
- (a) a cam angle detector attached to a cam shaft for the feed cams;
- (b) motion table setting means for setting, according to input data entered from outside, a motion table indicative of a locus of movement of the feed bars;
- and
- (c) controller means for controlling respective servo motors for lift bars according to information which is related to the cam angle of the feed cams detected by the cam angle detector and looked up in the motion table set by the motion table setting means.
Dependencies are inferred from the claim text.