ADAPTIVE SPINDLE ASSEMBLY FOR ELECTROEROSION MACHINING ON A CNC MACHINE TOOL

摘要

This invention relates to an apparatus and method to convert a CNC milling machine 23 to the electrical erosion process will. The apparatus includes a tubular electrode on the distal end 81 of the adapter shaft (7). Machine tool holder on the base end of the adapter shaft 80, 84 can be mounted on the chuck of a cutter spindle (24) of the milling machine. Adapter shaft 80 is rotatably mounted on a bearing (98) and the electrical brush contact subassembly, both bearing 98 and the electrical brush contact subassembly is supported by a bracket (99). The bracket (99) is attached to the milling machine and the milling machine to isolate from the machine tool electrode (21). Bearing (98) supports the CNC spindle 24 and the alignment of the adapter shaft (80). The power unit 44 has the energy to the electrode and the workpiece (28) to the electric corrosion in the gap 74 between the electrode and the workpiece (28). Electrolyte is circulated through the spinning machine tool electrode (21) during operation. And the CNC computer 36, the device is configured power device 44 and, to adjust the electrolyte flow for the electric erosion process.