Surface contouring tool
AssigneeGeneral Electric Company
InventorsCharles W. Carrier, Frank W. Gorsler
Life of this patent
Estimating the term…
Abstract
There is provided by the present invention a surface contouring tool useful for reaching otherwise inaccessible working surfaces such as large diameter gas turbine engine rotor inner surfaces, the invention including a machining head means extendable from a nonworking position to a working position relative to the working surface and when the machining head means is useful for EDM or ECM machining further includes a fluid flow path for providing a machining fluid to the working surface head and means for rotating the machining head means.
Claims19
Apparatus for providing a desired contour to the inner surface of a gas turbine engine rotor having an inner, working surface, said apparatus comprising:
- a tool body having first and second tool body sections, said first and second tool body sections being angularly disposed with respect to each other, said tool body being insertable into the interior of the rotor;
- a machining head means for contouring the inner surface of the rotor, said machining head means being disposed at the free end of said second body section and extendable from a first position to a second position;
- means for extending said machining head means from said first position to said second position whereat said head means is capable of contouring the inner surface of the rotor;
- wherein said tool body can be inserted into the rotor and said head means can be extended from said first position to said second position for contouring the inner surface of the rotor and retracted to said first position for movement within said rotor;
- and
- means for rotating said machining head means about an axis lying substantially parallel to a direction of extension and retraction of said head means.
An apparatus for machining an interior portion of a component wherein the interior portion has a larger dimension than a bore through which at least a portion of the apparatus must be inserted for machining, said apparatus comprising:
- a first tool body section;
- a single second tool body section extending angularly from said first tool body section;
- a single tool slide having a tool holder at the end and slidably mounted in said second tool body section for movement between a retracted position substantially within said second tool body, for insertion through the bore of the component and for movement between different machining positions within the component, and an extended position for extending a tool mounted to said tool holder for machining;
- means for sliding said single tool slide between said retracted and extended positions;
- and
- said second tool body section has a channel for receiving said tool slide for movement between said retracted and extended positions, said channel tapering at an opening through which said tool slide extends to define a pair of sloped channel shoulders and said tool slide sloping outwardly at an end opposite said tool holder end to define a pair of sloped slide shoulders, said slide shoulders matingly engaging said channel shoulders when said tool slide is in said extended position to prevent said tool slide from becoming everextended.
Dependencies are inferred from the claim text.