Alignment tool, cutting arrangement and method for treatment of a workpiece

1. An alignment tool for guiding cutting of a leading edge of a rotor blade of a wind turbine, the alignment tool comprising:

at least one fixation means for fixing the alignment tool proximate a trailing edge of the rotor blade, wherein the at least one fixation means is a structure attachable to a first surface and a second opposing surface of the rotor blade, and the structure is selected from the group consisting of: a clamp arrangement, and at least one suction cup, the structure including a first loop configured to be proximate the first surface when the structure is attached to the rotor blade, the structure including a second loop configured to be proximate the second opposing surface when then the structure is attached to the rotor blade; and

a first rope, chain, hook-and-loop fastener and/or tension belt attached to the first loop;

a second rope, chain, hook-and-loop fastener and/or tension belt attached to the second loop;

at least one guiding structure operably connected to the fixation means, wherein the guiding structure is configured to embrace the leading edge of the rotor blade and includes at least one groove or at least one edge that is configured to provide guidance for a cutting edge of a cutting apparatus, and wherein a first end of the guiding structure is attached to the first rope, chain, hook-and-loop fastener and/or tension belt and a second end of the guiding structure is attached to the second rope, chain, hook-and-loop fastener and/or tension belt.

2. The alignment tool according to claim 1 , wherein the alignment tool is capable of interacting with at least two differently sized rotor blades that are capable of being part of a wind turbine.

3. The alignment tool according to claim 1 , further comprising a flexible belt comprising the at least one guiding structure.

4. The alignment tool according to claim 3 , wherein the flexible belt consists of a polymer material.

5. The alignment tool according to one of the claim 1 , wherein the at least one groove or at least one edge is reinforced with a reinforcement.

6. The alignment tool according to claim 5 , wherein the reinforcement is provided by a thickening material of the flexible belt or by addition of a metal sheet.

7. The alignment tool according to claim 1 , wherein the at least one fixation means comprises an adhesive element configured to contact the rotor blade and ensure the alignment tool does not get out of place during cutting.

8. The alignment tool according to claim 1 , wherein the at least one fixation means comprises a clamp arrangement.

9. The alignment tool according to claim 8 , wherein the clamp arrangement comprises two clamping elements connected by a frame component.

10. The alignment tool according to claim 1 , wherein the at least one fixation means is connected to the at least one guiding structure by a tension belt.

11. A cutting arrangement comprising an alignment tool according to claim 1 and the cutting apparatus with the cutting edge.

12. The cutting arrangement according to claim 11 , wherein the cutting edge of the cutting apparatus comprises a strained metal wire, in which the strained metal wire is wrapped by at least one additional metal wire.

13. A method for treatment using a cutting arrangement according claim 11 , the method comprising:

providing the rotor blade of the wind turbine;

attaching the alignment tool to the rotor blade; and

treating the rotor blade using the cutting apparatus, in which the cutting edge of the cutting apparatus is guided by the at least one guiding structure of the alignment tool.

14. The method according to claim 13 , further comprising cutting through a leading edge protection shell of the wind turbine rotor blade, wherein the alignment tool is wrapped around a cross section of the rotor blade.