Flash butt welding facility

Flash butt welding facility for welding together a first and a second profiled workpiece, comprising:

• a) a first and a second clamping system for retaining and positioning the first and second profiled workpieces aligned on a workpiece clamping axis, wherein the clamping systems are open to a first side perpendicular to the workpiece clamping axis for receiving the first and second workpieces, respectively;
• b) first and second support means for supporting said first and second clamping systems, respectively;
• c) at least one compressive force generator arranged on a second side of the workpiece clamping axis opposite said first side and in parallel with the workpiece clamping axis for moving the support means relative to each other;
• d) a first end of said at least one compressive force generator being pivotally connected to said first support means;
• e) at least one lever linking a second end of said at least one compressive force generator with said second support means;
• f) the second support means being displaceably supported by guide rod means mounted in the first support means for a strictly linear movement of the second support means with respect to the first support means;
• and
• g) pull rod means pivotally linking said first support means and said lever at a fulcrum.

Flash butt welding facility for welding together rails and rail-like profiled workpieces, comprising:

• a first and a second clamping system for retaining and positioning the first and second profiled workpieces aligned on a workpiece clamping axis, wherein the clamping systems are open to a first side perpendicular to the workpiece clamping axis for receiving the first and second workpieces, respectively;
• first and second support means for supporting said first and second clamping systems, respectively;
• at least one compressive force generator arranged on a second side of the workpiece clamping axis opposite said first side and in parallel with the workpiece clamping axis for moving the support means relative to each other;
• each clamping system having two eccentric presses, each represented by two rotatable shafts supported orthogonally to the workpiece clamping axis, the two shafts eccentrically supporting a clamping bar arranged parallel to the clamping axis and moving to and fro on rotation of the shafts.

Flash butt welding facility for welding together a first and a second profiled workpiece, comprising:

• a first and a second clamping system for retaining and positioning the first and second profiled workpieces aligned on a workpiece clamping axis, wherein the clamping systems are open to a first side perpendicular to the workpiece clamping axis for receiving the first and second workpieces, respectively;
• first and second support means for supporting said first and second clamping systems, respectively;
• at least one compressive force generator arranged on a second side of the workpiece clamping axis opposite said first side and in parallel with the workpiece clamping axis for moving the support means relative to each other;
• a flash trimming device with blades supported by a horizontal supporting plate pivotally held by parallel operating horizontal levers for swinging the blades inwards and outwards, said blades being supported in the swung-out position behind a plane defined by the front side of a contact electrode facing the welding site as well as outside of the contact electrodes.