US 5,691,763 AGranted

Terminated cable portion inspection device for stripped terminal crimping machine

AssigneesSumitomo Wiring Systems, Ltd., Meidensha Corporation

InventorsYoshihide Ichikawa, Hideki Ohmori, Tuneyoshi Takahashi, Kiyohide Abe

Life of this patent

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Abstract

A terminated cable portion inspection device (8) for a stripped terminal crimping machine, which is located on a bidirectional path (P) between a stripping portion and a terminal crimping portion and includes: an image pickup camera (11) having a high shutter speed; an illuminating device (12) including a pair of illuminating portions (20) on opposite sides of a photographing path (19) of the image pickup camera (11) for directing illumination in substantially the same direction as a photographing direction toward a cable end passing therethrough along the bidirectional path (P) and elongated in substantially the same direction as a longitudinal direction of the cable, and optical fibers (22) for guiding light to light projecting portions (23) of the illuminating portions (20); and a detector (13) including first and second sensors (31, 32) for detecting the cable end. Each of the illuminating portions (20) includes a transmitted light scattering plate (27) between each of the light projecting portions (23) and the bidirectional path (P), and a spacing (28) between each of the light projecting portions (23) and the transmitted light scattering portion (27) for diffusing light.

Claims8

Dependent claims

In a stripped terminal crimping machine including a stripping portion for stripping a coating at an end of a cable, a terminal crimping portion for crimping a crimp terminal to the stripped end of the cable, a transport mechanism for transporting the stripped cable end in a first direction along a bidirectional path from an initial position of the bidirectional path to the terminal crimping portion and then transporting the stripped cable end in a second direction along the bidirectional path from the terminal crimping portion to the initial position after crimping of the crimp terminal, and a terminated cable portion inspection device for photographing the cable end transported along the bidirectional path to inspect a stripped portion and a terminal crimped portion of the cable by image processing;

said terminated cable portion inspection device comprising:
an image pickup camera having a high shutter speed;
a pair of illuminating portions on opposite sides of a photographing path of said image pickup camera for directing illumination in substantially the same direction as a photographing direction of said image pickup camera toward the cable end passing therethrough along the bidirectional path, said pair of illuminating portions being elongated in substantially the same direction as a longitudinal direction of the cable;
an optical fiber for guiding light emitted from a light source to light projecting portions of said illuminating portions;
a first sensor for detecting a timing of photographing the cable end transported in the first direction along the bidirectional path by said image pickup camera;
and
a second sensor for detecting a timing of photographing the cable end transported in the second direction along the bidirectional path by said image pickup camera,
said first sensor and said second sensor being located in positions deviated from an optical axis of said image pickup camera.

5 more elements

said terminated cable portion inspection device comprising:
an image pickup camera having a high shutter speed;
a pair of illuminating portions on opposite sides of a photographing path of said image pickup camera for directing illumination in substantially the same direction as a photographing direction of said image pickup camera toward the cable end passing therethrough along the bidirectional path, said pair of illuminating portions being elongated in substantially the same direction as a longitudinal direction of the cable;
a first sensor for detecting a timing of photographing the cable end transported in the first direction along the bidirectional path by said image pickup camera;
and
a second sensor for detecting a timing of photographing the cable end transported in the second direction along the bidirectional path by said image pickup camera,
said first sensor and said second sensor being located in positions deviated from an optical axis of said image pickup camera,
wherein the detection position of said first sensor is positioned in corresponding relation to a passing position of an end of the coating at the stripped cable end, and the detection position of said second sensor is positioned in corresponding relation to a passing position of an intermediate portion of a core crimping portion of the crimped crimp terminal.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/524,517Filed 7 Sep 1995
Priority: JP 6-22060014 Sep 1994
Granted: 25 Nov 1997
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G01R 31/308
Contactless testing: using non-ionising electromagnetic radiation, e.g. optical radiation
G01N 21/8806
Investigating the presence of flaws or contamination: specially adapted optical and illumination features
G01N 21/952
Characterised by the material or shape of the object to be examined: inspecting the exterior surface of cylindrical bodies or wires
G01R 31/304
Contactless testing: of printed or hybrid circuits