Magnetic field-assisted vibratory finishing device for minute structure and finishing method

A magnetic field-assisted vibratory finishing device for a minute structure, the magnetic field-assisted vibratory finishing device comprising:

• a rotating shaft;
• a workpiece clamping device;
• a magnetic field generating device;
• a vibration assisting device;
• a three-axis precision displacement platform;
• and
• a base;
• wherein, the magnetic field generating device comprises:
• a baffle plate;
• magnetic bars, comprising N poles and S poles;
• a magnetic-pole groove;
• hexagon bolts and nuts;
• wherein the vibration assisting device comprises:
• a housing;
• guide fixing rods;
• a vibration motor;
• a vibration connecting plate;
• and
• compression springs;
• wherein:
• the baffle plate is connected to the magnetic-pole groove by a clearance fit;
• the magnetic-pole groove with the magnetic bars is fixedly connected to the vibration connecting plate through the hexagon bolts and the nuts;
• the vibration connecting plate is provided on the guide fixing rods each of which is mounted with a corresponding one of the compression springs;
• the vibration motor is provided inside the housing, wherein the housing is fixed on the three-axis precision displacement platform;
• and
• one end of the workpiece clamping device is configured to be connected to a part to be processed and another end of the workpiece clamping device is connected to the rotating shaft.