Tool Change Interface for Robot
Original Publication Date: 1988-Jan-01
Included in the Prior Art Database: 2005-Feb-14
A robot arm carries a platform below which an adapter aligned by pins is held by vacuum. Vacuum ports and signal lines traverse the adapter to an interface which can be used to grip parts by vacuum or to operate tools. Correct positioning of adapter and tool is sensed by a vacuum switch. The arrangement with lightweight tools allows high-speed robot operation. In the figure a robot shaft 1 carries a body 2 to which a cable connects vacuum lines and electrical signal lines. A sensed platform 3 is fitted to body 1. Sensed platform 3 includes pins 4 to accurately align adapter 5. The robot holds adapter 5 by a vacuum at the interface between sensed platform 3 and adapter 5. Adapter 5 includes vacuum ports 6 to tool interface 7 which carries the part being handled or a tool suitable for the particular job to be done.