Apparatus for machining a component and method of machining

Patent metadata

Field	Value
Publication number	US-10913136-B2
Application number	US-201615777342-A
Country	US
Kind code	B2
Filing date	Nov 8, 2016
Priority date	Dec 16, 2015
Publication date	Feb 9, 2021
Grant date	Feb 9, 2021

Abstract

An apparatus for machining a component is provided. The apparatus includes a fixation mechanism, wherein the fixation mechanism includes a first fixation member with a first fixation face and a second fixation member with a second fixation face, wherein the first fixation face and the second fixation face are arranged and configured such that different bearing surfaces of a plurality of different components can be fixed between the first fixation member and the second fixation member, wherein the apparatus further includes a machining device, and wherein the apparatus is configured to machine a machining surface of the respective component by means of the machining device and according to a predetermined accuracy. Further, a method of machining the component is presented.

First claim

The invention claimed is:

1. An apparatus for machining a component, wherein the component is a vane or a blade of a turbine, comprising a fixation mechanism, wherein the fixation mechanism comprises a first fixation member with a first fixation face and a second fixation member with a second fixation face, wherein the second fixation member is displaceable with respect to the first fixation member, wherein the first fixation face and the second fixation face each comprise two subfaces which are even in shape, wherein the first fixation face and the second fixation face are arranged and configured such that different bearing surfaces of a plurality of different components can be fixed between the first fixation member and the second fixation member and wherein the first fixation face and the second fixation face are shaped with at least one of specific measures or dimensions for standard sizes or shapes of at least one of a vane or blade of a turbine to abut a substantial portion of the first fixation or second fixation face during machining,
wherein the apparatus further comprises a machining device,
wherein the apparatus is configured to machine a machining surface of the respective component by the machining device and according to a predetermined accuracy, and
wherein the apparatus further comprises a rack, wherein the machining device is surrounded by the rack.

2. The apparatus according to claim 1 , wherein the two subfaces of the first fixation face and the two subfaces of the second fixation face are inclined at an angle between 115° and 118°, to each other, respectively.

3. The apparatus according to claim 1 , wherein the two subfaces of the first fixation face ( 11 ) and the two subfaces of the second fixation face are inclined at an angle between 112° and 115°, to each other, respectively.

4. The apparatus according to claim 1 , wherein the predetermined accuracy of the machining amounts to 0.04±0.02 mm.

5. The apparatus according to claim 1 , which is configured to machine the machining surface of the component such that the machining surface of the component has a surface roughness between 2.5 μm and 16 μm.

6. The apparatus according to claim 1 , wherein the apparatus comprises a base and the apparatus is configured such that the machining device is fixable onto the base for an operation of the apparatus.

7. The apparatus according to claim 6 , wherein the apparatus is configured such that the machining device is demountable from the base for a transportation of the apparatus.

8. The apparatus according to claim 1 , which is configured such that it can be arranged and transported on a euro-pallet.

9. The apparatus according to claim 1 , wherein the apparatus is a grinding machine.

10. The apparatus according to claim 1 , wherein the machining surface is a surface of a root of said vane or blade.

11. A method of machining a component with an apparatus comprising a rack a machining device surrounded by the rack, and a fixation mechanism, wherein the method comprises:
providing a fixation mechanism with a first fixation face and a second fixation face shaped with at least one of specific measures or dimensions for standard sizes or shapes of at least one of a vane or blade of a turbine to abut a substantial portion of the first fixation or second fixation face during machining,
mounting the machining device and the rack onto a base,
mounting a component to the apparatus for the machining operation, wherein bearing surfaces of the component are fixed between the first fixation member and the second fixation member of the fixation mechanism without affect of the vane or the blade during machining, and machining a machining surface of the component according to a predetermined accuracy.

12. The method according to claim 11 , wherein after the machining of the machining surface, the machining device is demounted from the base for a transportation of the apparatus, wherein the apparatus is arranged on a pallet.

13. The apparatus according to claim 10 , wherein the turbine is a compressor of a gas turbine.

14. The method according to claim 12 , wherein the pallet, is a euro-pallet.

15. A kit for machining components of a turbine comprising:
a transportable or movable rack;
a machining device mounted on the transportable or movable rack adapted to be used at different fabrication sites or facilities of turbines, wherein the machining device is surrounded by the transportable or movable rack; and
a plurality of fixation members operably attachable to the machining device, each of the plurality of fixation members having a different geometry for a reliable clamping of different pairs of vanes or blades of a turbine, wherein each of the plurality of fixation members has a respective fixation face which is shaped with at least one of specific measures or dimensions for standard sizes or shapes of at least one of a vane or blade of a turbine to abut a substantial portion of the respective fixation face during machining.

16. The kit of claim 15 , wherein the kit includes five different fixation members which allow for a reliable clamping of twenty different vane root geometries.

17. The kit of claim 15 , wherein the transportable or movable rack protects the machining device during transportation.

18. The kit of claim 15 , wherein the transportable or movable rack further comprises a slide or a ceramic striking surface.

19. The kit of claim 15 , further comprising grinding discs for providing striking surfaces.

Assignees

• Siemens Ag

Inventors

• Gellenthien Heiko
• Griese Andreas
• Klemke Thomas
• Piasecki Pascal

Classifications

• B23Q1/015

  Frames, beds, pillars · CPC title

• B23Q3/104

  V-blocks · CPC title

• B25B5/14

  Clamps for work of special profile {(using chains or strips B25B1/205)} · CPC title

• B23Q3/063 Primary

  for holding turbine blades · CPC title

• B25B1/2405

  Construction of the jaws · CPC title