Manual clamping unit PTI

shaft

THE STANDARDISED TURNING INTERFACE The PTI (Polygonal Turning Interface) is an innovative tool interface that raises the state of the art to a whole new level and allows for standardisation in turning machine revolvers. The main design feature of the interface is its eight-sided polygonal taper with flush fitting. With the PTI system, static and driven tools are clamped using OTT-JAKOB’s quick-clamping system. The interface has holes for coolant and sealing air. An interface for data and energy transfer is also provided, so that the PTI can also be integrated in Industry 4.0 environments. The PTI is available in sizes PTI42, PTI54 and PTI65. The PTI was developed as part of a joint research project in which OTT-JAKOB was a major participant. The ultimate objective is to standardise the shaft, holder and coupling. The steps necessary for this are current ongoing after a successful market launch. Excellent torsional stiffness and repeat accuracy The polygonal taper allows for form-locking transmission of torsional moment. This design feature also makes precise repeat positioning possible. As a result, manually adjusting the tools is no longer necessary. Best bending stiffness Thanks to the flush fitting, the PTI system can withstand higher bending moment. The clamping option using four screws allows for additional bending stiffness. Faster tool changing The quick-clamping system from OTT-JAKOB saves significant time during tool changing and effectively reduces equipment costs. Tools are clamped and unclamped via a simple screw actuated with a torque wrench.