| 摘要 |
A machine for raising parts vertically from a pick-up station, for shifting the parts horizontally toward a delivery station, and for lowering the parts vertically into the delivery station. The machine includes a parts handling head pivotally supported on the lower end portions of a pair of parallel links whose upper end portions are pivotally connected to a vertically movable slide. A crank is oscillated back and forth by a reciprocating actuator and acts to effect pivoting and vertical shifting of the links while a cam follower is connected to one of the links and coacts with a slotted cam plate to control such pivoting and shifting. In one embodiment, reciprocating motion of the actuator is converted into oscillating motion of the crank by a rack and pinion and, in another embodiment, the motion conversion is effected by cogged belts coacting with toothed sprockets.
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