The invention provides a
laser beam expanding lens transposition mechanism, and relates to a transposition mechanism in the
optics apparatus technology field. The
laser beam expanding lens transposition mechanism comprises a work bench, a linear platform pedestal, a leading screw, a guide rail, a sliding stand, a
laser beam expanding lens, a bearing, a shaft
coupling, a stepping motor, a
linear displacement sensor and the like. The bearing is installed on the linear platform pedestal, the leading screw is filled into the bearing, and the linear platform pedestal is installed on a
workbench. An output shaft of the stepping motor forms coaxial connection with the leading screw through the shaft
coupling, the leading screw traverses a screw hole of the sliding stand, a lower surface of the sliding stand slidingly contacts an upper surface of the guide rail, a base plate of the laser beam expanding lens is fixed on the sliding stand, and the laser beam expanding lens makes rectilinear movement with the sliding stand. A connection bracket joint is fixed on a side surface of the sliding stand, an expansion end of the
linear displacement sensor connects with the connection bracket joint, the laser beam expanding lens makes rectilinear movement with the sliding stand, and the
linear displacement sensor records a position of the laser beam expanding lens.