Origin detection method for component placement head

Details Origin detection method for component placement head Origin detection method for component placement head

2007-11-13

2007-11-13

Tugbang, A. Dexter (Department: 3729)

Metal working

Means to assemble or disassemble

Means to assemble electrical device

C029S739000, C029S740000, C029S741000, C294S064200

Reexamination Certificate

active

10526894

ABSTRACT:
An origin detection method for a component placement head includes setting an axial origin for each elevation nut section, of the component placement head, by detecting a rotational angle of a drive section corresponding to the elevation nut section. The elevation nut sections are then individually moved down from the axial origin so that light emitted from a light-projecting section is received by a light-receiving section without being interrupted. Then, it is confirmed that the axial origin of each elevation nut section is an origin of elevation by detecting interruption of light, emitted from the light-projecting section, by the elevation nut section at a position corresponding to the elevation nut section having been lowered from the axial origin by a prescribed light interruption dimension.

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