Feeding device of hole inspection device

Patent metadata

Field	Value
Publication number	US-11598624-B2
Application number	US-202117221193-A
Country	US
Kind code	B2
Filing date	Apr 2, 2021
Priority date	May 18, 2020
Publication date	Mar 7, 2023
Grant date	Mar 7, 2023

Abstract

According to one implementation, a feeding device of a hole inspection device having a probe includes an attaching jig, a movement mechanism, and a positioning jig. The probe is inserted into a hole to be inspected of an object in a central axis direction of the hole, for inspecting the hole. The attaching jig attaches the hole inspection device to the feeding device. The movement mechanism linearly reciprocates the hole inspection device together with the attaching jig. The positioning jig positions the movement mechanism to the object. A moving direction of the attaching jig and the hole inspection device is made parallel to the central axis direction of the hole by positioning the movement mechanism.

First claim

What is claimed is:

1. A feeding device of a hole inspection device having a probe, the probe being inserted into a hole to be inspected of an object in a central axis direction of the hole, for inspecting the hole,
the feeding device comprising:
an attaching jig for attaching the hole inspection device to the feeding device;
a movement mechanism having a linearly moving machine element which is at least one of an air cylinder, a crawler, gears and a ball screw, the linearly moving machine element linearly reciprocating the hole inspection device together with the attaching jig; and
a positioning jig that positions the movement mechanism to the object, a moving direction of the attaching jig and the hole inspection device being made parallel to the central axis direction of the hole by positioning the movement mechanism.

2. The feeding device according to claim 1 ,
wherein the probe is bar-shaped,
the positioning jig includes a bushing,
the attaching jig is adapted to position the hole inspection device, a length direction of the bar-shaped probe being made to be on a straight line which passes through an inside of the bushing and is parallel to a central axis of the bushing, and
the linearly moving machine element is adapted to linearly reciprocate the bar-shaped probe inside the bushing by reciprocating the attaching jig in a central axis direction of the bushing.

3. The feeding device according to claim 2 , further comprising:
a positioning plate having a positioning hole for inserting the bushing, the bushing slidably fitting to the positioning hole, the positioning plate being attached to the object in a state where a central axis of the positioning hole and the central axis of the hole to be inspected lie on a same straight line; and
a spacer disposed in an object side of the positioning plate, the spacer generating a clearance between the positioning plate and the object, an edge of the hole to be inspected being exposed in the clearance.

4. The feeding device according to claim 1 ,
wherein the movement mechanism includes the ball screw and a motor rotating the ball screw, the ball screw automatically reciprocating the hole inspection device.

5. The feeding device according to claim 1 ,
wherein the movement mechanism includes the ball screw and a handle manually rotating the ball screw, the ball screw reciprocating the hole inspection device.

6. The feeding device according to claim 1 ,
further comprising a handgrip for carrying the feeding device,
wherein the feeding device is handheld.

7. A hole inspection unit comprising:
the feeding device according to claim 1 ; and
the hole inspection device.

8. A method of feeding a hole inspection device having a probe, for inspecting a hole to be inspected of an object by inserting the prove in a central axis direction of the hole,
the method comprising:
attaching the hole inspection device to an attaching jig;
positioning a movement mechanism to the object by a positioning jig, the movement mechanism having a linearly moving machine element which is at least one of an air cylinder, a crawler, gears and a ball screw, the linearly moving machine element linearly reciprocating the hole inspection device together with the attaching jig, a moving direction of the attaching jig and the hole inspection device being made parallel to the central axis direction of the hole by positioning the movement mechanism; and
feeding the hole inspection device by linearly advancing the attaching jig together with the hole inspection device toward the object by the movement mechanism.

9. The method according to claim 8 ,
wherein the positioning jig includes a bushing; and
the movement mechanism is positioned by inserting the bushing into a positioning hole formed on a drilling jig for positioning a drilling tool for processing the hole.

10. The feeding device according to claim 2 ,
wherein the movement mechanism includes the ball screw and a motor rotating the ball screw, the ball screw automatically reciprocating the hole inspection device.

11. The feeding device according to claim 3 ,
wherein the movement mechanism includes the ball screw and a motor rotating the ball screw, the ball screw automatically reciprocating the hole inspection device.

12. The feeding device according to claim 2 ,
further comprising a handgrip for carrying the feeding device,
wherein the feeding device is handheld.

13. The feeding device according to claim 3 ,
further comprising a handgrip for carrying the feeding device,
wherein the feeding device is handheld.

14. The feeding device according to claim 4 ,
further comprising a handgrip for carrying the feeding device,
wherein the feeding device is handheld.

15. A hole inspection unit comprising:
the feeding device according to claim 2 ; and
the hole inspection device.

16. A hole inspection unit comprising:
the feeding device according to claim 3 ; and
the hole inspection device.

17. A hole inspection unit comprising:
the feeding device according to claim 4 ; and
the hole inspection device.

18. A hole inspection unit comprising:
the feeding device according to claim 6 ; and
the hole inspection device.

19. The method according to claim 8 ,
wherein the movement mechanism includes the ball screw and a motor rotating the ball screw, the ball screw automatically reciprocating the hole inspection device.

20. The method according to claim 8 ,
wherein the feeding device is handheld and has a handgrip for carrying the feeding device.

Assignees

• Subaru Corp

Inventors

• Ono Ryohei
• Watanabe Masao
• Nakahata Tatsuo

Classifications

• G01B21/047

  Accessories, e.g. for positioning, for tool-setting, for measuring probes · CPC title

• B23B49/001

  Devices for detecting or indicating failure of drills · CPC title

• G01B5/0004 Primary

  Supports (G01B5/025 takes precedence) · CPC title

• G01B11/303

  using photoelectric detection means · CPC title

• B23Q17/24

  using optics {or electromagnetic waves} · CPC title