Method for machining a casing of an aircraft turboshaft engine and scraper tool for implementing said method

Patent metadata

Field	Value
Publication number	US-2016167144-A1
Application number	US-201615048262-A
Country	US
Kind code	A1
Filing date	Feb 19, 2016
Priority date	Nov 2, 2010
Publication date	Jun 16, 2016
Grant date	—

Abstract

A scraper tool for deburring an edge of an aircraft turboshaft engine casing is arranged to be mounted in a milling device. The scraper tool includes a body including, on a first end, a connection for the milling device and, on a second end, a deburring module including a turning lathe platelet including at least one cutting edge arranged so as to deburr the casing edge. The deburring module includes a guide adapted to contact the edge to be deburred so as to follow the profile of the edge to be deburred without modifying the orientation of the turning lathe platelet.

First claim

1 . A scraper tool for deburring an edge of an aircraft turboshaft engine casing, the scraper tool being arranged to be mounted in a milling device, the tool comprising:
a body including, on a first end, connection means for the milling device and, on a second end, a deburring module comprising a turning lathe platelet including at least one cutting edge arranged so as to deburr the casing edge, wherein the deburring module comprises guiding means adapted to contact the edge to be deburred so as to follow the profile of the edge to be deburred without modifying the orientation of the turning lathe platelet.

2 . The tool according to claim 1 , wherein the deburring module comprises a connection pole, on which the turning lathe platelet is mounted, and a plate being rotationally mounted around said connecting pole, the guiding means being arranged on said plate.

3 . The tool according to claim 2 , wherein the guiding means comprise at least two parallel rolls provided to come simultaneously in contact with the edge to be deburred.

4 . The tool according to claim 3 , wherein the connecting pole extends between the rolls, preferably at a same distance from the rolls.

5 . The tool according to claim 2 , wherein one end of the connecting pole is mounted within the body, spring means being arranged between said end of the connecting pole and said body so as to calibrate the cutting effort of the turning lathe platelet on the edge to be deburred.

6 . The tool according to claim 3 , wherein one end of the connecting pole is mounted within the body, spring means being arranged between said end of the connecting pole and said body so as to calibrate the cutting effort of the turning lathe platelet on the edge to be deburred.

7 . The tool according to claim 4 , wherein one end of the connecting pole is mounted within the body, spring means being arranged between said end of the connecting pole and said body so as to calibrate the cutting effort of the turning lathe platelet on the edge to be deburred.

8 . The tool according to claim 1 , wherein, the casing comprising an inside portion and an outside portion, the turning lathe platelet comprises at least two parallel cutting edges being arranged to deburr respectively an inside portion and an outside portion of the casing edge.

9 . The tool according to claim 2 , wherein, the casing comprising an inside portion and an outside portion, the turning lathe platelet comprises at least two parallel cutting edges being arranged to deburr respectively an inside portion and an outside portion of the casing edge.

10 . The tool according to claim 3 , wherein, the casing comprising an inside portion and an outside portion, the turning lathe platelet comprises at least two parallel cutting edges being arranged to deburr respectively an inside portion and an outside portion of the casing edge.

11 . The tool according to claim 4 , wherein, the casing comprising an inside portion and an outside portion, the turning lathe platelet comprises at least two parallel cutting edges being arranged to deburr respectively an inside portion and an outside portion of the casing edge.

12 . The tool according to claim 5 , wherein, the casing comprising an inside portion and an outside portion, the turning lathe platelet comprises at least two parallel cutting edges being arranged to deburr respectively an inside portion and an outside portion of the casing edge.

13 . The tool according to claim 6 , wherein, the casing comprising an inside portion and an outside portion, the turning lathe platelet comprises at least two parallel cutting edges being arranged to deburr respectively an inside portion and an outside portion of the casing edge.

14 . The tool according to claim 7 , wherein, the casing comprising an inside portion and an outside portion, the turning lathe platelet comprises at least two parallel cutting edges being arranged to deburr respectively an inside portion and an outside portion of the casing edge.

Assignees

• Snecma

Inventors

• Engrand Eric Dany Robert Jean

Classifications

• Y10T409/501476

  Means to remove flash or burr · CPC title

• Y10T29/5115

  Planer · CPC title

• Y10T29/5109

  Lathe · CPC title

• B23D11/00

  Planing or slotting devices able to be attached to a machine tool, whether or not replacing an operative portion of the machine tool · CPC title

• B23B11/00

  Automatic or semi-automatic turning-machines incorporating equipment for performing other working procedures, e.g. slotting, milling, rolling {(B23B3/065 and B23B3/16 take precedence; machines incorporating a plurality of sub- assemblies, each capable of performing a metal-working operation, the sub-assemblies being arranged to operate simultaneously at different stations B23Q39/04)} · CPC title