Method for machining a casing of an aircraft turboshaft engine and scraper tool for implementing said method
AssigneeSafran Aircraft Engines
InventorEric Dany Robert Jean Engrand
Life of this patent
Estimating the term…
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.
Claims20
A scraper tool for deburring an edge of an aircraft turboshaft engine casing, the scraper tool being mountable in a milling device, the scraper tool comprising:
- a body including, on a first end, a connector to connect to the milling device and, on a second end, a deburring module comprising a turning lathe platelet including at least one cutting edge to deburr the casing edge, said turning lathe platelet being indexable about a first rotation axis;
- wherein the deburring module comprises a guide to maintain contact with the casing edge to adjust the turning lathe platelet to variations in a height of the casing edge along an axial direction of the casing, said at least one cutting edge being maintained in contact with the casing edge without indexing of the turning lathe platelet about the first rotation axis when the at least one cutting edge is deburring the casing edge, and
- the deburring module further comprises a connecting pole having a longitudinal axis, the connecting pole and the longitudinal axis thereof extending from the deburring module into the connector, the turning lathe platelet being mounted to the connecting pole, and a plate rotationally mounted about said connecting pole, the guide being arranged on said plate, and the plate having an axis of rotation that is oriented so as to be coincidental with the longitudinal axis of the connecting pole, and
- the connector inhibits a transfer of rotation of the milling device to the turning lathe platelet when the at least one cutting edge is deburring the casing edge.
A scraper tool for deburring an edge of an aircraft turboshaft engine casing, the scraper tool being mountable in a milling device, the scraper tool comprising:
- a body including, on a first end, a connector to connect to the milling device and, on a second end, a deburring module comprising a turning lathe platelet including at least one cutting edge to deburr the casing edge, said turning lathe platelet having a diamond shape and being indexable about a first rotation axis;
- wherein the deburring module comprises a guide to maintain contact with the casing edge to adjust the turning lathe platelet to variations in a height of the casing edge along an axial direction of the casing, the turning lathe platelet not undergoing indexing about said first rotation when the at least one cutting edge is deburring the casing edge, and
- the deburring module further comprises a connecting pole having a longitudinal axis, the connecting pole and the longitudinal axis thereof extending from the deburring module into the connector, the turning lathe platelet being mounted to the connecting pole, and a plate rotationally mounted about said connecting pole, the guide being arranged on said plate, and the plate having an axis of rotation that is oriented so as to be coincidental with the longitudinal axis of the connecting pole, and
- the connector inhibits a transfer of rotation of the milling device to the turning lathe platelet when the at least one cutting edge is deburring the casing edge.
Dependencies are inferred from the claim text.