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Browse Prior Art Database

Pick and Place Mechanism

IP.com Disclosure Number: IPCOM000042524D
Original Publication Date: 1984-May-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Laybourn, RJ: AUTHOR

Abstract

A mechanism suitable for picking up and positioning small parts is described. This mechanism increments adhesive tape 1 from a supply roll 2 to a takeup roll 3 operatively carried by a housing 4. The housing at surface 5 is adapted to be connected to an actuator, such as a robot arm (not shown), for vertical and lateral movement. The adhesive tape, which may be similar to conventional masking tape, has its coated side facing a small part 6 that is to be picked up from a conveyor belt or the like. Roll 2 is splined to the same shaft 7 as a ratchet disk 8 that is held against undesired backward rotation by a spring-loaded detent 9. Similarly, roll 3 is splined to the same shaft 10 as a ratchet disk 11 that is held against undesired backward rotation by a spring-loaded detent 12.

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Pick and Place Mechanism

A mechanism suitable for picking up and positioning small parts is described. This mechanism increments adhesive tape 1 from a supply roll 2 to a takeup roll 3 operatively carried by a housing 4. The housing at surface 5 is adapted to be connected to an actuator, such as a robot arm (not shown), for vertical and lateral movement. The adhesive tape, which may be similar to conventional masking tape, has its coated side facing a small part 6 that is to be picked up from a conveyor belt or the like. Roll 2 is splined to the same shaft 7 as a ratchet disk 8 that is held against undesired backward rotation by a spring-loaded detent
9. Similarly, roll 3 is splined to the same shaft 10 as a ratchet disk 11 that is held against undesired backward rotation by a spring-loaded detent 12. In operation, when housing 4 is lowered by the actuator (not shown) operatively attached at surface 5, tape 1 will be moved into contact with part 6. After the part is adhered to the tape, housing 4 is raised, then moved to a desired lateral position by the actuator, and finally lowered to place the part in desired position. Air is then supplied to the piston of an air cylinder (not shown), causing at least one pin 13 to move downwardly and, as permitted by pin-in-slot connections at x and y, push part 6 away from roll 14 by the distance z. As the piston and each pin 13 are then retracted, pawl 15 through arm 16 engages a tooth on disk 8 and indexes the disk one too...