Title:
COMPONENT MOUNTING HEAD AND METHOD FOR DETECTING ORIGIN IN THE SAME
Document Type and Number:
Japanese Patent JP3971687
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To surely detect an origin in raising and lowering operations of component holding members each capable of holding a component and to suppress manufacturing cost to a low level with a simple constitution in a component mounting head in which a plurality of the component holding members each are arranged in one row.
SOLUTION: A method for detecting the origin in the component mounting head includes the steps of setting the origin of raising and lowering of a raising/lowering nut by detecting a rotary angle of a rotary driver in the raising/lowering unit, sequentially individually lowering the raising/lowering nut in a state in which the nut is disposed at the origin set so that a light emitted from a light emitting unit is photodetected by a photodetecting unit without being shielded, detecting light shielding by the lowered nut emitted by the light from the emitting unit by the photodetector at a position where the nut is lowered by a predetermined size of light shielding from the set origin, confirming that the set origin is on the origin of raising or lowering, and thereby detecting the origin.
Inventors:
Osamu Okuda
Kazuo Kido
Hideki Uchida
Kazuo Kido
Hideki Uchida
Application Number:
JP2002267950A
Publication Date:
September 05, 2007
Filing Date:
September 13, 2002
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H05K13/04; (IPC1-7): H05K13/04
Attorney, Agent or Firm:
Aoyama Aoi
Mitsuo Wada
Mitsuo Wada