| 摘要 |
An automatic machine and control system for automatically cutting elongated pieces of material such as tubes, pipe bar stock and the like, into pieces of pre-determined lengths at a first station. Each cut piece is automatically conveyed to a second station where it is clamped and centered with respect to threading and reaming heads which automatically thread and ream both ends of the clamped piece simultaneously. The threaded piece is then released from the clamping means and automatically conveyed to a third station where one of the threaded ends is automatically coated with thread sealing material, following which a fitting is automatically attached to the coated threads. The completed assembly is then automatically conveyed to a storage area. The automatic threading station employs automatically adjustable die heads which automatically compensate for pieces having different diameters with the reaming portion of the die head being automatically adjusted concurrently with the threading portion. The distance between the two die heads of the automatic threading station is automatically adjusted to compensate for varying lengths of pieces to be threaded. The automatic control system and stations can be adapted for operation without any one of the stations, that is, the cutting station can be used in conjunction with the threading station or, the threading station can be used in conjunction with the fitting make-on station without requiring the third station to be incorporated into the system. |
