Denso Corporation

Koji Katahira

Hideki Ichikawa

Masahiro Takada

Masayuki Takiguchi

Masashi Yoshida

Jiro Ebihara

Kenichi Shibayama

Norihisa Tsuchiyama

Norimasa Okada

Tatsuo Gotoh

Yasuhiro Ono

Yuujirou Kuwamura

Koji Shiga

An Assembly/processing apparatus includes part tray, work tray where work pieces are placed, conveyor, base machine, part-tray lane, work-tray lane, part-tray transfer apparatus and work-tray transfer apparatus. Conveyor conveys part trays and work trays together, base machine includes assembling means for assembling parts to a work piece, and part tray lane and work tray lane are provided on base machine. Conveyor conveys part trays and work trays to base machine, and respectively places them on each of part tray lane and work tray lane. Then, assembling means takes parts from part tray, and assembles them to the work piece on work tray.

Assembly/processing apparatus

In a production method of a rotor, a lower layer slot insulator is held at a slot insulator holding portion of a combining jig. A lower layer coil bar is inserted into a coil inserting path of the combining jig and is combined integrally with the lower layer slot insulator by being pushed together. Thereafter, the combined set is set in a coil integrating path of a coil holding member. The coil holding member is attached to a coil inserting device along with an armature core. The lower layer slot insulator and a lower coil trunk are integrally inserted into a slot of the armature core by pushing the lower layer coil bar in the coil integrating path. The lower layer coil trunk and an upper layer coil trunk may be formed integrally with respective coil arms as a single coil bar.

Rotor production method including assembling a slot insulator and coil

An armature for an electric rotating machine has a plurality of outer coil elements and a plurality of inner coil elements. Each of the coil elements has end protrusions extending axially outwardly from an axial side of an armature. The end protrusions facing each other in a radial direction is joined by an arc welding. In one method, the end protrusion of the outer coil element is formed a projection at an axially inside of an axial end of the protrusion. The end protrusions are held spaced apart from each other in the radial direction while contacting only through the projection. The axial ends of the protrusions are welded by swinging the welding arc. In another method, a ring-shaped brazing material is interposed between the end protrusions. The brazing material is melted by the welding arc to weld the end protrusions, while cutting out the brazing material existing between two adjacent pairs of the end protrusions.

Method for manufacturing armature of rotating electric machine

Growing community of inventors

Chiryu, Japan

Koji Katahira