F - Mech Eng,Light,Heat,Weapons – 15 – C
Patent
F - Mech Eng,Light,Heat,Weapons
15
C
342/24
F15C 1/04 (2006.01) B23Q 5/26 (2006.01) B23Q 37/00 (2006.01)
Patent
CA 2029440
INTERFACE UNIT FOR DRILLS ABSTRACT OF THE DISCLOSURE A universal interface unit is provided for use with a pneumatic drill having an axially extendable tool holder, the interface unit being adaptable for use with 'valve in head' type and 'thru head' type pneumatic drills of different sizes. The interface unit includes a compact housing which fastens to the pneumatic drill and houses one or more proximity sensors for sensing the position of extendable tool holder and also houses valves for controlling air flow to the extend and retract ports of the drill. The proximity sensors sense the position of the extendable tool holder and send signals to a remote controller. The valves receives signals from the remote controller and communicate with the drill extend and retract ports to control the tool holder position. The valves are plumbed to be easily convertible for use with either the 'valve in head' type of 'thru head' type pneumatic drills by removing two plugs and changing a fitting. One or more unique air fittings are used to hold the interface unit to the pneumatic drill with a minimum of parts. The air fitting includes pipe threads for mating with the pneumatic drill extend and retract ports and also includes external standard threads for receiving a nut which secures a mounting plate to the drill. The interface unit is secured to the mounting plate in a manner which to locates the proximity sensors adjacent the proximity sensor targets located on a shaft connected to the extendable tool holder. A single universal bracket is designed to be used with different sizes of drills.
Lacombe Arnold E. Jr.
Mcnees Ronald G.
Altron Automation Inc.
Borden Ladner Gervais Llp
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