Inspection device for inspecting a cable end of a cable and a method for cleaning

Patent metadata

Field	Value
Publication number	US-10906072-B2
Application number	US-201916527086-A
Country	US
Kind code	B2
Filing date	Jul 31, 2019
Priority date	Aug 13, 2018
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

An inspection device for inspecting a cable end of a cable, with and without a connected crimp contact, includes a mirror arrangement having a central axis along which the cable end can be arranged for inspection. The mirror arrangement includes a plurality of mirrors arranged at a predetermined angle to one another and at a predetermined angle to the central axis, each mirror viewing the cable end from a different angle. The inspection device includes a camera for generating images of the cable end from the different viewing angles of the mirrors. A transparent disk is arranged between the camera and the mirror arrangement to prevent dirt and/or dust from moving from the mirror arrangement to the camera. A compressed air cleaning device cleans the disk and/or the mirrors with compressed air ejected along the disk and/or along at least a part of the mirrors.

First claim

What is claimed is:

1. An inspection device for inspecting a cable end of a cable comprising:
a mirror arrangement having a central axis, wherein the cable end is arranged along the central axis in the mirror arrangement for inspecting the cable end;
wherein the mirror arrangement includes a plurality of mirrors arranged at a predetermined first angle to each another and at a predetermined second angle to the central axis, each of the mirrors viewing the cable end from a different viewing angle;
a camera generating images of the cable end from the different viewing angles from the mirrors;
a transparent disk arranged to prevent dirt and/or dust from moving from the mirror arrangement to the camera, the mirror arrangement being arranged on one side of the disk and the camera being arranged on an opposite side of the disk; and
a cleaning device for cleaning at least one of the disk and the mirrors with compressed air, the cleaning device having at least one outlet ejecting the compressed air along at least one of the disk and at least a part of the mirrors, the cleaning device being insertable into an aperture in the inspection device and thereby positioned between the transparent disk and the mirror arrangement.

2. The inspection device according to claim 1 wherein the cleaning device is selectively removable from and insertable into the inspection device without opening a housing of the inspection device, the housing enclosing the mirror arrangement and the disk.

3. The inspection device according to claim 1 including a stationary compressed air channel for supplying the compressed air to the cleaning device when the cleaning device is fluidly connected to the compressed air channel.

4. The inspection device according to claim 1 wherein the ejected compressed is air ionized compressed air.

5. The inspection device according to claim 1 including a cable receiving aperture aligned with the central axis for inserting the cable end into the mirror arrangement and a cable centering for holding the cable, wherein the cable centering closes the cable receiving aperture except for an aperture of the cable centering for receiving and holding the cable.

6. The inspection device according to claim 1 including a calibration member insertable into the inspection device for calibrating the camera without opening a housing of the inspection device, the housing enclosing the mirror arrangement, the camera and the disk, wherein the calibration member when inserted is positioned on the one side of the disk to cover the mirrors when viewing the mirrors from a viewing direction of the camera.

7. The inspection device according to claim 6 wherein the calibration member is a gray card.

8. The inspection device according to claim 6 wherein the calibration member is insertable into the aperture in the inspection device for receiving the cleaning device.

9. The inspection device according to claim 1 including a discharge aperture for discharging the compressed air from an interior of the mirror arrangement.

10. The inspection device according to claim 9 wherein the discharge aperture is arranged opposite the cleaning device relative to the central axis.

11. The inspection device according to claim 1 wherein the cleaning device is adapted to eject the compressed air for cleaning the mirrors toward a cable receiving aperture for inserting the cable end into the mirror arrangement.

12. The inspection device according to claim 1 wherein the cleaning device is formed as one piece by at least one of a metal printing method and 3D printing.

13. The inspection device according to claim 1 wherein the cleaning device is formed by at least one of a plurality of parts and a casting process.

14. The inspection device according to claim 1 wherein the cleaning device has a plurality of compressed air guide channels for guiding the compressed air, wherein when the cleaning device is inserted into the inspection device, two of the compressed air guide channels are arranged to guide a portion of the compressed air along the disk and three of the compressed air guide channels are arranged to guide another portion of the compressed air along the mirrors of the mirror arrangement.

15. The inspection device according to claim 1 wherein the disk is formed of at least one of a break-proof glass and a break-proof plastics material.

16. The inspection device according to claim 1 including a lighting device for lighting the cable end in the mirror arrangement, wherein the lighting device has multiple lighting means arranged along an ellipse, each of the lighting means having a main emission direction directed away from the mirror arrangement, and including a reflector reflecting the light emitted by the lighting means toward the mirror arrangement.

17. The inspection device according to claim 16 wherein the reflector is shaped as a paraboloid of revolution.

18. A method for cleaning the inspection device according to claim 1 comprising the step of: ejecting the compressed air from the at least one outlet of the cleaning device along either the disk or the at least a part of the mirrors for removing dust and/or dirt from the disk or the mirrors.

19. A method for cleaning an inspection device comprising the steps of:
providing an inspection device for inspecting a cable end of a cable, the inspection device including a mirror arrangement with a plurality of mirrors arranged for viewing the cable end from different viewing angles, the inspection device including a camera generating images of the cable end from the different viewing angles from the mirrors, the inspection device including a transparent disk arranged to prevent dirt and/or dust from getting from moving from the mirror arrangement to the camera, the mirror arrangement being arranged on one side of the disk and the camera being arranged on an opposite side of the disk, and the inspection device including a cleaning device having a plurality of outlets, the cleaning device being insertable into an aperture in the inspection device and thereby positioned between the transparent disk and the mirror arrangement; and
after inspecting the cable end, ejecting compressed air from at least one of the outlets along one of the disk and at least a part of the mirrors to remove any dust and/or dirt from the disk or the mirrors.

Assignees

• Komax Holding Ag

Inventors

• Gisler Adrian
• Kiser Markus
• Stocker Martin

Classifications

• H04N23/52

  Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements · CPC title

• H04N23/811

  by dust removal, e.g. from surfaces of the image sensor or processing of the image signal output by the electronic image sensor · CPC title

• H04N23/55

  Optical parts specially adapted for electronic image sensors; Mounting thereof · CPC title

• H04N23/51

  Housings · CPC title

• H04N23/56

  provided with illuminating means · CPC title