CNC Machine Grinds Super-Hard Materials

The Ewag Compact Line CNC grinding machine is designed for the flexible and precise manufacturing or sharpening of indexable inserts in all materials. Whether the material is carbide, cermet, ceramic or super-hard CBN/PCD, the CNC grinding machine meets all of the requirements for precision and speed - especially with the realisation of complex workpiece geometries.

The machine is fitted with the CBN/PCD module for grinding super-hard materials and now also for machining diamond cutting materials. The Compact Line has a compact construction, features ergonomic operation and an integrated robot system. Inside the machine, everything is positioned close to the working B-axis; the travel ranges for axes and robots are therefore kept to a minimum, cycle and downtimes are shortened, and productivity is increased.

The machine interior and control elements are accessible from one position. A rapid change system allows the operator to exchange the grinding wheels easily at the push of a button. The HSKE 50 clamping system for grinding wheels ensures quick and accurate change-over of grinding-wheel sets. The workpieces are fixed to the clamping device with a tension pin. All clamping systems are mechanically installed on the B-axis and are identified by a 'plug-and-play' system. The result is flexibility and short change-over times.

The 'three-in-one' sharpening unit - dressing, regenerating, and crushing - provides good grinding wheel concentricity and high repeat accuracy of processes. 3D measurement of workpieces in one clamping ensures the required tolerances are met from the start. Loading is carried out with the integrated six-axis Fanuc robot, which increases the level of machine automation and permits autonomous multi-shift operation. The Compact Line incorporates five-axis CNC kinematics, direct drive of the grinding spindle and linear technology.

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