Patent ID: 7472472

Claim:
An electronic part mounting apparatus comprising: a nozzle which holds an electronic part by suction and which mounts the electronic part on a substrate by holding the electronic part with said nozzle by suction; a base table; a substrate-holding unit which is arranged in the central portion of the base table and holds said substrate; a substrate transporting mechanism which brings in the substrate to said substrate-holding unit or carries out the substrate from the substrate-holding unit by transporting the substrate in a substrate transportation in X direction; a pair of supporting frames arranged in both sides of said substrate so as to straddle the substrate transporting route defined by said substrate transport mechanism; an electronic part feeding unit arranged lateral to said substrate-holding unit between the pair of the supporting frames on said base table; a beam member which is held by said supporting frames at both ends thereof so as to be freely movable in the Y direction almost perpendicular to said substrate transport direction; a Y-axis moving mechanism which moves the beam member in the Y direction whereby the moving range includes the space above said substrate-holding unit and the space above said electronic part feeding unit; the mounting head which is held by said beam member so as to be freely movable in the X direction; an X-axis moving mechanism which move the mounting head in the X direction; and a substrate-holding unit supporting mechanism which supports said substrate-holding unit in such a manner that the substrate-holding unit can move between an operating position which allows said substrate transport mechanism to bring in or carry out the substrate and a maintenance position arranged farther away from said electronic part feeding unit in the Y direction than said operating position on a side opposite to said electronic part feeding unit.