Deep hole machine tool spindle-torsion compound excitation experimental method

The invention discloses a deep hole machine tool spindle-torsion compound excitation experimental method. By adjusting module components of a deep hole machine tool spindle-torsion compound excitationexperimental device, three vibration modes of axial excitation, one-way shaft torsion compound excitation and reciprocating shaft torsion compound excitation are realized. According to the differentrequirements of drilling quality for deep hole straightness or axis deflection in deep hole machining, switching between the four drilling motion modes is realized. The four drilling motion modes include: motion mode 1 a workpiece rotates and a cutter performs feed motion; motion mode 2, the workpiece does not move, and the cutter rotates and performs the feed motion; motion mode 3, the workpiecerotates, the cutter rotates in the opposite direction and performs the feed motion; ad motion mode 4, the workpiece rotates and performs the feed motion. The three vibration modes of vibration drilling and the four drilling mot