Sealing fin fixing apparatus and sealing fin fixing method

A sealing fin fixing apparatus for fixing a sealing fin in a sealing groove defined in an outer circumference of a rotor of a rotary machine, the sealing fin fixing apparatus comprising:

• a headstock for setting the rotor thereon;
• a Z-stage movable along a Z-axis extending parallel to a rotational shaft of the headstock;
• an X-stage supported on the Z-stage and movable along an X-axis in a direction perpendicular to the Z-axis;
• a tool rest supported on the X-stage;
• and
• a caulking tool mounted on the tool rest, wherein
• the caulking tool includes a shank mounted on the tool rest and a pressing roller rotatably supported on the shank, the pressing roller having a rotational shaft mounted on the tool rest in a posture parallel to the rotational shaft of the headstock, and
• while the pressing roller is being held against a caulking wire inserted, together with the sealing fin, in the sealing groove in the rotor that is set on the headstock, the headstock is actuated to rotate the rotor, thereby caulking the caulking wire to fix the sealing fin to the rotor.