| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic working machine with which the prescribed portion of the spiral blade of a drilling shaft can be simply and surely worked. SOLUTION: This automatic working machine is equipped with a working bench 11 supporting freely rotatably the drilling shaft 1 in a state in which it is laid down horizontally and a working unit 10 working the prescribed part of the spiral blade 2 of the drilling shaft 1 while sliding along the drilling shaft 1 supported by the working bench 11. The working unit 10 is installed on a dolly 43 moving on a second rail 41 laid down in parallel with the drilling shaft 1, and it is equipped with a torch 47 for welding, an abutting part 48 and a guide mechanism 51 as a guide part. The guide mechanism 51 is a mechanism moving the working unit 10 with the rotation of the drilling shaft 1, and it is equipped with a roller member 72 rolling on the side surface of the spiral blade 2. |
