Punching tool equipped with a guide sleeve

Patent metadata

Field	Value
Publication number	US-10427285-B2
Application number	US-201715677156-A
Country	US
Kind code	B2
Filing date	Aug 15, 2017
Priority date	Aug 25, 2016
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

A punching tool which comprises a body, a rod oriented in a first direction and comprising a free end configured to cooperate with the element to be punched, a guide sleeve containing a conduit extending from a first end face to a second end face and configured to rest against the part. The conduit comprises a first portion which opens at the first end face and is configured to house the body of the punching tool and to allow a translation movement of the body of the punching tool relative to the guide sleeve.

First claim

The invention claimed is:

1. A punching tool for extracting an element to be punched from a hole of a part, the punching tool comprising:
a body and
a rod oriented in a first direction and comprising a free end configured to cooperate with an element to be punched,
a guide sleeve containing a guide with a conduit extending from a first end face to a second end face and configured to rest against the part,
said conduit comprising a first portion which opens at the first end face and is configured to house the body of the punching tool and allow a translation movement of the body of the punching tool relative to the guide in the first direction between a rest position, in which the rod of the punching tool is positioned inside the conduit of the guide sleeve, and an active position, in which the rod of the punching tool protrudes relative to the second end face of the guide sleeve,
said conduit comprises a second portion having a diameter greater than a diameter of the first portion wherein the second portion opens at the second end face and is configured to house a part of the element to be punched.

2. The punching tool as claimed in claim 1 , wherein the guide sleeve comprises two stops for limiting the translation movement of the body of the punching tool, a first stop configured to immobilize the body of the punching tool in the rest position, and a second stop configured to immobilize the body of the punching tool in the active position.

3. The punching tool as claimed in claim 1 , further comprising a compression spring configured to push the body of the punching tool into the rest position.

4. The punching tool as claimed in claim 1 , wherein the second end face is flat and is arranged in a plane perpendicular to the first direction.

5. The punching tool as claimed in claim 1 , wherein the second end face of the guide sleeve comprises forms which cooperate with the element to be punched in order to immobilize the guide sleeve.

6. The punching tool as claimed in claim 5 , wherein the conduit comprises the second portion is configured to house a part of the punching tool.

7. The punching tool as claimed in claim 1 , wherein the second end face of the guide comprises a coating which reinforces the adhesion between the guide and the part.

8. The punching tool as claimed in claim 1 , wherein the guide comprises a protection made of a material which limits the risks of damage to the part.

9. The punching tool as claimed in claim 8 , wherein the protection is a coating which covers at least a second end face.

Assignees

• Airbus Operations Sas

Inventors

• Echasserieau Gilles

Classifications

• B21J15/50

  Removing or cutting devices for rivets · CPC title

• B25D5/02 Primary

  Automatic centre punches · CPC title

• B25D5/00

  Centre punches · CPC title

• B25D2250/371

  Use of springs · CPC title

• B25D2250/231

  Sleeve details · CPC title