Vibration motors generate periodic centrifugal forces through the high-speed rotation of eccentric weights, thereby inducing vibration in the vibrating trough. The vibration mode of the trough is typically three-dimensional, comprising vertical vibration and two orthogonal horizontal vibration components. This three-dimensional vibration causes the grinding and polishing media-along with the workpieces-to follow complex trajectories within the trough.
Under the influence of vertical vibration, the media and workpieces are lofted to a certain height before falling back to the bottom of the trough under the force of gravity; meanwhile, horizontal vibrations induce lateral sliding and rolling motions of the media and workpieces within the trough. For instance, when the vibrating trough oscillates along the X-axis, the media and workpieces undergo alternating acceleration and deceleration along that axis; simultaneously, due to vibration along the Y-axis, they experience displacement in the Y-direction; furthermore, the vertical vibration continuously alters their spatial elevation. The superposition of these three components results in complex, composite trajectories-such as helical or circular paths.
