Alignment method and alignment device for annularly aligned conductors

Patent metadata

Field	Value
Publication number	US-11005346-B2
Application number	US-201716086730-A
Country	US
Kind code	B2
Filing date	Mar 22, 2017
Priority date	Mar 22, 2016
Publication date	May 11, 2021
Grant date	May 11, 2021

Abstract

The alignment method of the electrical conductors includes an aligning step of aligning a plurality of electrical conductors 40 in an annular shape while being overlapped in a circumferential direction of the annular shape by moving gripping devices 230 inward in a radial direction of the annular shape, in which the gripping device 230 has a pair of claws 232 g 1 and 232 g 2 capable of pinching one leg portions 41 of the substantially U-shaped electrical conductors 40 one by one, one claw 232 g 1 has a length capable of gripping one leg portion 41 , and the other claw 232 g 2 has a length capable of gripping one leg portion 41 of one substantially U-shaped electrical conductor 40 - 1 and gripping the other leg portion 44 of the other substantially U-shaped electrical conductor 40 - 2.

First claim

The invention claimed is:

1. An alignment method of an electrical conductor in which a plurality of U-shaped electrical conductors are overlapped and are aligned in an annular shape, each U-shaped electrical conductor includes one leg portion and an other leg portion, the method comprising:
an arranging step of disposing the electrical conductors in an annular shape in plan view at intervals at which the electrical conductors do not overlap in a circumferential direction of the annular shape by causing a plurality of gripping devices disposed in the annular shape to each grip the one end portions of the electrical conductors; and
an aligning step of aligning the plurality of electrical conductors in the annular shape while overlapping the electrical conductors in a circumferential direction of the annular shape by moving the gripping devices in a radially inward direction of the annular shape,
wherein each gripping device has a pair of claws gripping the one leg portions of the U-shaped electrical conductors one by one, one claw has a length capable of only gripping the one leg portion of one U-shaped electrically conductor, and the other claw has a length longer than the length of the one claw such that the other claw is capable of gripping the one leg portion of the one U-shaped electrical conductor on a side of the other claw facing the one claw and gripping the other leg portion of another U-shaped electrical conductor on the same side of the other claw.

2. The alignment method according to claim 1 ,
wherein, in the aligning step, the gripping devices are moved radially inward to predetermined positions inside the annular shape, and after moving the gripping devices to the predetermined positions inside the annular shape, while the plurality of electrical conductors are in a state of overlapping and prevented from being moved in the circumferential direction of the annular shape, the gripping devices are moved outward in a radial direction of the annular shape to predetermined outward positions, and are moved from the predetermined outward positions to the predetermined positions inside the annular shape again.

3. An alignment device of an electrical conductor in which a plurality of U-shaped electrical conductors are overlapped and aligned in an annular shape, each U-shaped electrical conductor includes one leg portion and an other leg portion, the device comprising:
a plurality of gripping devices which are provided in an annular shape and each hold the one leg portions of the electrical conductors; and
a driving mechanism which moves the plurality of gripping devices in a radial direction of the annular shape,
wherein each gripping device has a pair of claws capable of pinching the one leg portions of the U-shaped electrical conductors one by one, one claw has a length capable of only gripping the one leg portion of one U-shaped electrical conductor, and the other claw has a length longer than the length of the one claw such that the other claw is capable of gripping the one leg portion of the one U-shaped electrical conductor on a side of the other claw facing the one claw and gripping the other leg portion of another U-shaped electrical conductor on the same side of the other claw.

Assignees

• Honda Motor Co Ltd

Inventors

• Matsumoto Yutaka
• Takahashi Nobuhisa
• Ohno Kenichi

Classifications

• H02K15/26

  Applying fastening means on winding heads · CPC title

• H02K15/06

  Embedding prefabricated windings in the machines · CPC title

• H02K15/066 Primary

  inserted perpendicularly to the axis of the slots or inter-polar channels · CPC title

• H02K15/085 Primary

  by laying conductors into slotted stators · CPC title

• H02K15/0428

  Processes or apparatus for simultaneously twisting two or more hairpins · CPC title