Threading Technology – Clamping Technology 520

634 Tap Holders Soft- synchro Speed- synchro KSN MQL SFM HF EM Accessories Tech. Info Product Finder 7.1 Description of the symbols for performance characteristics Front release The front release protects the quick-change tap holder, the quick-change adapter and the tool, as well as the workpiece, against damage caused by excessive axial tension. Such tension may occur if the length compensation path is exceeded due to afterrunning of the spindle at the point of reversal, or when the fast-feed function of the tool retraction movement is activated before the tool has come free from the workpiece. In these situations, the quick-change adapter is detached from the holder automatically, avoiding expensive damage. Holding ball of the quick-change adapter Situation before the triggering of the front release Situation after the triggering of the front release Transmission gearing rapid traverse Due to the integrated transmission gearing rapid traverse, the spindle speed is multiplied. Consequently the threading tool speed is increased by the transmission factor. Axial-parallel floating A ball-based floating system guarantees that small errors of alignment between machine spindle and thread hole, or concentricity run-out on the side of the machine spindle, are compensated. Two parallel drilled holes, offset by 90°, form a precise ball-based linear guide. This arrangement is the perfect solution for the function of the “parallel floating” feature. Floating Central fixing piece Floating Overload clutch The wave-line profile overload clutch as developed by EMUGE is characterized by its great wear resistance. Grease chambers between the upper and lower clutch ring provide permanent lubrication during the overload process. When the set torque is exceeded during a threading process, the overload clutch immediately interrupts the torque transfer between machine spindle and tool. This protects the tap against damage. Grease chambers