Coil segment manufacturing method

Patent metadata

Field	Value
Publication number	US-9876413-B2
Application number	US-201414465381-A
Country	US
Kind code	B2
Filing date	Aug 21, 2014
Priority date	Aug 26, 2013
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

A coil segment manufacturing apparatus includes a conducting wire material feeder which repeatedly feeds a conducting wire material while changing the feeding amount and interposing a processing time, a coating remover which removes an insulation coating of the conducting wire material at a removal position each time the processing time is reached, and a conducting wire material cutter which cuts the conducting wire material each time the processing time is reached.

First claim

What is claimed is:

1. A coil segment manufacturing method for manufacturing, from a coil conducting wire material provided with an insulation coating, coil segments in which insulation coatings of both ends have been removed and which have a plurality of different lengths, comprising:
a step of repeating a feeding operation for feeding the conducting wire material by a predetermined feeding amount along a certain feeding route while sequentially changing the feeding amount to a plurality of different feeding amounts corresponding to the plurality of different lengths for each feeding operation and also interposing a predetermined processing time between the feeding operations;
a removal step of removing the insulation coating of the conducting wire material at a removal position on the feeding route within the processing time each time the processing time is reached; and
a cutting step of cutting a portion of the conducting wire material, at which the insulation coating has been removed in the removal step, at a cutting position on the feeding route within the processing time each time the processing time is reached,
wherein the removal step and the cutting step are concurrently carried out,
the conducting wire material has a quadrangular cross section having a first side surface and a second side surface corresponding to one pair of opposite sides of the quadrangle and a third side surface and a fourth side surface corresponding to the other pair of opposite sides thereof,
the removal position comprises a first removal position and a second removal position that is on a downstream side relative to the first removal position, and
the removal step comprises:
a first removal step of removing the insulation coating of the first side surface and the second side surface at the first removal position; and
a second removal step of removing, at the second removal position, the insulation coating of the third side surface and the fourth side surface of a same portion as the portion of the conducting wire material, at which the insulation coating has been removed by the first removal step, within the processing time that is different from the processing time for the removal of the insulation coating by the first removal step.

2. The coil segment manufacturing method according to claim 1 , comprising a removal position changing step for changing the removal position in synchronization with the change of the feeding amount such that the insulation coating is removed at a portion that includes the position at which the conducting wire material is cut.

Assignees

• Honda Motor Co Ltd

Inventors

• Hayashi Kanomi
• Kawano Shinichi
• Ueno Daisuke
• Saito Satoru

Classifications

• H02K15/0421 Primary

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