High-precision vertical turnover machine and method for packaging a photovoltaic assembly

A high-precision vertical turnover machine for packaging a photovoltaic assembly, comprising a first drum conveyor line for forward and backward conveying, a horizontal transfer mechanism configured to drive the first drum conveyor line to move left and right between a receiving station and a first turnover station, a first turnover mechanism located on a left side of the first drum conveyor line and configured to turn over a photovoltaic assembly on the first drum conveyor line by 90 degrees with a long edge of the photovoltaic assembly as a turnover edge, a second turnover mechanism located on a left side of the first turnover mechanism and configured to turn over the photovoltaic assembly by 90 degrees with a right-angle corner of the photovoltaic assembly as a turnover center, a distance detecting sensor located on a front side of the first turnover mechanism or a rear side of the first turnover mechanism and configured to detect a position of a front surface of the photovoltaic assembly on the first turnover mechanism or a position of a rear surface of the photovoltaic assembly on the first turnover mechanism, and a lifting correction transfer mechanism configured to move the photovoltaic assembly on the first turnover mechanism to a second turnover station and place the photovoltaic assembly on the second turnover mechanism precisely according to a detection result of the distance detecting sensor;

• wherein the lifting correction transfer mechanism comprises a base, a lift driving member disposed on the base, a lift platform configured to be driven by the lift driving member to move up and down, a third motor fixed on the lift platform, a front-and-rear correction platform configured to be driven by the third motor to move front and rear, a fourth motor fixed on the front-and-rear correction platform, a multi-stage telescopic arm configured to be driven by the fourth motor to move left and right;
• wherein the second turnover mechanism comprises a second turnover holder and a fourth cylinder configured to drive the second turnover holder to switch between a third turnover state and a fourth turnover state;
• the second turnover holder comprises a first support frame and a second support frame perpendicular to each other;
• a support platform is disposed on the first support frame;
• a second drum conveyor line for forward and backward conveying and a second positioning module for positioning a wood pallet on the second drum conveyor line are disposed on the second support frame;
• in the third turnover state, the first support frame is horizontal, and the support platform is docked with a left side of the lifting correction transfer mechanism;
• and in the fourth turnover state, the second drum conveyor line is horizontal;
• wherein a second avoidance notch for the multi-stage telescopic arm to extend into is disposed on the support platform.