Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1989-02-27
1990-06-26
Ro, Bentsu
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
31856811, 901 6, 901 38, H01L 2158, B25J 1100
Patent
active
049375113
ABSTRACT:
A robotic transport and assembly system includes a worktable upon which are supported a printed circuit board conveyor, a controllably displaceable circuit component feed mechanism and a robotic manipulator, mounted on the worktable and having a multi(four)-axis end effector, for controllably seizing an electronic circuit component from the component feed mechanism and placing the seized component on the printed circuit board for surface mounted attachment. The controllably displaceable circuit component feed mechanism, which includes a component feed device and an associated feeder device positioning table, is mounted on the worktable at a position adjacent to the position whereat a printed circuit board is supported for the pick and placement operation of the robotic manipulator. The component feed device controllably supplies a plurality of the components to be seized by the end effector and placed on said workpiece by the robotic manipulator. A control processor is coupled with the robotic manipulator and the transport mechanisms for controlling their operation such that, during a pick and placement cycle, the component feed device locates the next component to be captured by the robotic manipulator at pickup point which is centrally located within the work envelope of the robotic manipulator. In other words, control of the component feed device positioning mechanism is dependent upon the next transport action of the robotic manipulator, so as to effectively minimize component capture and surface mount cycle time.
REFERENCES:
patent: 3958740 (1976-05-01), Dixon
patent: 4538956 (1985-09-01), Kalkbrenner et al.
patent: 4587703 (1986-05-01), Azizi et al.
patent: 4674181 (1987-06-01), Hamada et al.
patent: 4677808 (1987-07-01), Chenevard
patent: 4789292 (1988-12-01), Holcomb
Herndon Donnie H.
Peck Robert D.
Ro Bentsu
Western Technologies Automation, Inc.
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