Conductive-wire position inspecting method and device

Patent metadata

Field	Value
Publication number	US-10950000-B2
Application number	US-202016788367-A
Country	US
Kind code	B2
Filing date	Feb 12, 2020
Priority date	Jan 16, 2018
Publication date	Mar 16, 2021
Grant date	Mar 16, 2021

Abstract

A conductive-wire position inspecting device includes: a reference body disposed in a radial direction of a stator core; an imaging device configured to image a conductive wire and the reference body; and a calculating device configured to find a relative position and a relative angle of the conductive wire with respect to the reference body, based on an obtained image. In addition, the conductive-wire position inspecting device includes a determining device configured to determine whether or not the found relative position and relative angle are within respective permissible ranges, and if they are within the permissible ranges, determine the position of the conductive wire to be acceptable.

First claim

What is claimed is:

1. A conductive-wire position inspecting method for inspecting positions of a plurality of conductive wires inserted into a slot of a stator core and arranged in a radial direction of the stator core, the method comprising:
a disposing step of disposing a reference body so that the reference body and the conductive wires projecting from the slot are arranged along a line in the radial direction of the stator core;
an imaging step of imaging the conductive wires and the reference body with an imaging device;
a calculating step of finding a deviation amount of each of the conductive wires with respect to a reference line drawn from the reference body and extended along the radial direction of the stator core, based on an image obtained by the imaging device; and
a determining step of, if the deviation amount found in the calculating step falls within a permissible range, determining the position of the conductive wire to be acceptable.

2. The conductive-wire position inspecting method according to claim 1 , wherein
the conductive wires comprise a plurality of conductive wires that are arranged along a circumferential direction of the stator core, and
after the position of one of the conductive wires is determined to be acceptable in the determining step, another one of the conductive wires that is adjacent to the one conductive wire in the circumferential direction undergoes the imaging step, the calculating step, and the determining step.

3. A conductive-wire position inspecting device for inspecting a position of a plurality of conductive wires inserted into a slot of a stator core and arranged in a radial direction of the stator core, the device comprising:
a reference body disposed so that the reference body and the conductive wire projecting from the slot are arranged along a line in the radial direction of the stator core;
an imaging device configured to image the conductive wires and the reference body;
a calculating device configured to find a deviation amount of each of the conductive wires with respect to a reference line drawn from the reference body and extended along the radial direction of the stator core, based on an image obtained by the imaging device; and
a determining device configured to, if the deviation amount found by the calculating device falls within a permissible range, determine the position of the conductive wire to be acceptable.

4. The conductive-wire position inspecting device according to claim 3 , further comprising
a rotating device configured to rotate the stator core relatively to the imaging device and the reference body.

5. The conductive-wire position inspecting device according to claim 3 , wherein
the imaging device and the reference body is positioned and fixed.

6. The conductive-wire position inspecting device according to claim 3 , wherein
the reference line is provided in the imaging device or a member interposed between the imaging device and the reference body.

Assignees

• Honda Motor Co Ltd

Inventors

• Hokazono Hidetaka
• Izumi Yoshiyuki
• Kimura Yasuyuki
• Kamiyama Masahiko
• Ito Naoki
• Matsumoto Yutaka
• Ueno Daisuke

Classifications

• G06T2207/30136

  Metal · CPC title

• G06T7/001 Primary

  using an image reference approach · CPC title

• H02K15/00

  Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines · CPC title

• H04N7/183

  for receiving images from a single remote source · CPC title

• G01R31/34

  Testing dynamo-electric machines · CPC title