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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 paralle

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.

대표청구항 ▼

A pick and place machine for gripping a part at a first station, for shifting the part along a substantially straight first path toward a second station and for then moving the part along a second and generally right-angled path to said second station for release of the part therein, said machine co

A pick and place machine for gripping a part at a first station, for shifting the part along a substantially straight first path toward a second station and for then moving the part along a second and generally right-angled path to said second station for release of the part therein, said machine comprising a main support, a head selectively operable to grip and release parts, a slide mounted for back and forth movement on said support, a pair of parallel links having first end portions pivotally connected to said slide and having opposite end portions pivotally connected to said head, a crank having one end portion mounted on said support to turn about a predetermined axis and having an opposite end portion movably connected to one of said links, a single selectively reversible actuator having a rod adapted to be reciprocated back and forth, a first pair of aligned pulleys rotatably mounted on said support, a second pair of aligned pulleys rotatably mounted on said support, one pulley of each pair being rotatable about said axis and being coupled rigidly to said crank, first and second flexible and endless belts trained around the pulleys of said first and second pairs, respectively, connecting means extending between and being attached rigidly to said belts and being selectively adjustable relative to said belts along the length thereof in order that the locations of said first station and said second station may be precisely adjusted, said rod being fastened to said connecting means between said belts and being operable when moved back and forth to turn the crank first in one direction and then the other about said axis to cause said slide to shift back and forth and to cause said links to pivot relative to said slide, and coacting cam means on said support and one of said links for controlling said slide and said links to cause said head to move first along said first path and then along said second path during turning of said crank in one direction and to move reversely along said second path and then reversely along said first path during turning of said crank in the other direction.