Patent EP-1923166-B1 (EP)
Inventor: WIDMANN DOMINIK
IPC: B23K26/08
Filed: 2006-11-16
Granted: 2009-01-07
Abstract: The mechanical arrangement (1) for cutting pipes (2) by a cutting beam, comprises a cutting head (3) arranged in a transverse direction on the cutting pipes, a pipe holder (8) for fixing the cutting pipe, a catching lance (15) and a stripper (16). The head is movable from the cutting beam along a working axis of the cutting head, which forms cutting beam axis. The cutting beam and the pipe are movable under separation of a piping section relative to each other in the circumferential direction of the pipes. The pipe holder is arranged at a side of the working axis of the cutting head. The mechanical arrangement (1) for cutting pipes (2) by a cutting beam, comprises a cutting head (3) arranged in a transverse direction of the pipes on the cutting pipes, a pipe holder (8) for fixing the cutting pipe, a catching lance (15) and a stripper (16). The cutting head is movable from the cutting beam along a working axis of the cutting head, which forms cutting beam axis. The cutting beam and the pipe are movable under separation of a piping section relative to each other in the circumferential direction of the pipes. The pipe holder is arranged at a side of the working axis of the cutting head. The stripper is arranged at the side of the working axis opposite to the pipe holder in piping longitudinal direction. The catching lance is bringable at the cutting head side into the piping interior of the cutting pipe and is arranged with a projection opposite to the stripper. A separated pipe section is arranged at the side of the stripper. The tubing sections are separated from the catching lance by the stripper. The catching lance is movable with a pull-back position directed by the working axis of the cutting head relative to the stripper in the piping longitudinal direction. The stripper is transferred into different positions by a positioning movement with respect to the working axis of the cutting head in the longitudinal direction of the pipe. A stripper longitudinal guidance is intended for guiding the stripper into piping longitudinal direction during the positioning movement. A catching lance longitudinal guidance is intended for guiding the catching lance in tubing longitudinal direction. A supporting structure of the machine arrangement comprises a longitudinal guiding device for the supporting structure. The supporting structure guiding device is formed at a stripper-side longitudinal guiding device and at a catching lance-side longitudinal guiding device. The catching lance is connected with a control unit of a motoric catching lance drive, by which the catching lance is movable in piping longitudinal direction. A control longitudinal guidance is intended for the control unit of the catching lance drive and is formed from the guiding device of the supporting structure and the control device. The stripper guidance and/or the catching lance guidance and/or the control guidance are formed as a linear guidance. The stripper is moved a motoric position drive in tubing longitudinal direction into different positions. A numeric position control is intended for detecting the different positions of the stripper in piping direction and for controlling functions of the machine arrangement as a function of the seized positions of the stripper and is integrated into a superordinate numeric arrangement control of the machine arrangement.