Apparatus and method for making bores in an edge of a turbine blade
AssigneeSiemens Aktiengesellschaft
InventorsIngo Berger, Uwe Dunkel, Steffi Raue
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Abstract
An apparatus for making bores in a turbine blade edge is provided. The apparatus includes a drilling device and a guide for the drilling device. The guide includes a bearing element with a gap which is delimited by bearing faces and has the shape of a turbine blade edge. Further, the apparatus includes two guide modules which lie opposite one another and are brought to bear with a side face of the turbine blade and which together form a tension device for fixing the guide on the turbine blade. Furthermore, a method for making bores in a turbine blade edge using such an apparatus is provided.
Claims20
An apparatus for making bores in an edge of a turbine blade, comprising:
- a drilling device with a rotating electrode as a drilling tool;
- and
- a guide for the drilling device,
- wherein the guide includes
- a bearing element, a gap being formed in the bearing element, the gap being delimited by bearing faces and having a contour corresponding to a shape of a turbine blade edge to be machined, and
- at least two guide modules lying opposite one another,
- wherein the guide modules together form a tension device for fixing the guide on the turbine blade, and
- wherein the bearing element of the guide includes a clearance for leading through the rotating electrode.
A method for making bores in a turbine blade edge, comprising:
- providing an apparatus, comprising:
- a drilling device with a rotating electrode as a drilling tool;
- and
- a guide for the drilling device,
- wherein the guide includes
- a bearing element, a gap being formed in the bearing element, the gap being delimited by bearing faces and having a contour corresponding to a shape of a turbine blade edge to be machined, and
- at least two guide modules lying opposite one another,
- wherein the guide modules together form a tension device for fixing the guide on the turbine blade, and
- wherein the bearing element of the guide includes a clearance for leading through the rotating electrode;
- placing the apparatus onto the turbine blade such that the turbine blade edge to be machined is arranged in a region of the gap of the bearing element,
- mounting the turbine blade between the guide modules;
- and
- making bores in the turbine blade edge by the drilling device.
Dependencies are inferred from the claim text.