Device and method for manufacturing large-length-diameter-ratio nanoscale shafts

The invention relates to a device and method for manufacturing large-length-diameter-ratio nanoscale shafts and belongs to the field of precise micro electrochemical machining. The device comprises a locating piece (8) installed on an X-Y-axis mobile platform (1), a cathode fixture (11) fixed on the locating piece (8), and a cathode horizontal ring (7) clamped by the cathode fixture (11), and further comprises a rotary main shaft fixture (4) installed on a Z-axis precise displacement platform (2), an electricity leading device (6) fixed on the rotary main shaft fixture (4), and a rotary main shaft (3) fixed on the rotary main shaft fixture (4). The positive electrode and the negative electrode of a power supply (15) are connected with the electricity leading device (6) and the cathode fixture (11) respectively. With the method and device, the nanoscale thin and long shafts with large length-diameter ratios can be machined, and the method and device has the advantages of being strong in repeatability, high in success rate, low in cost and the like.