Drilling machines and methods thereof

A drilling machine, comprising:

• a base;
• a mast arranged on the base;
• an iron roughneck;
• a power slip;
• a drill floor mechanical arm arranged on the base;
• a top drive and a power finger board arranged on the mast;
• a pipe racker on a finger board arranged on the power finger board;
• and
• an elevator arranged on the top drive, wherein
• the elevator is configured to tilt relative to a vertical direction,
• a region of at least one pipe setback is disposed on a region in an upper surface of the base vertically corresponding to the power finger board,
• the pipe racker on the finger board includes a clamp head and a transmission mechanism that moves the clamp head, the clamp head being configured to clamp or support an upper portion of a stand,
• the drill floor mechanical arm is configured to clamp or support a lower portion of the stand and coordinate with the clamp head to move the stand between a position of a well center and the region of the at least one pipe setback, and
• during the movement of the stand between the position of the well center and the region of the at least one pipe setback, one of the clamp head and the drill floor mechanical arm clamps the stand and the other of the clamp head and the drill floor mechanical arm supports the stand.