Patent ID: 6293003
Filing Date: 2001-09-25
Classification: H05K,Y10T

Abstract:
An electronic component mounting apparatus comprising:a rotary table capable of being intermittently driven about a central axis;a plurality of pickup nozzles disposed along a periphery of the rotary table so as to be movable up and down;a cylindrical cam disposed inside of the rotary table and positioned so as to be coaxial with said rotary table, said cylindrical cam having a cam groove formed in on outer peripheral surface of the cylindrical cam for effecting up and down movement of the pickup nozzles in response to intermittent rotation of the rotary table;a first roller attached to one of the pickup nozzles and disposed within the cam groove;a second roller attached to the one pickup nozzle and disposed within the cam groove, wherein movement of the first and second rollers along the cam groove causes the one pickup nozzle to move up and down; anda spring assembly for biasing the first and second rollers into contact with first and second side surfaces of the cam groove, respectively.