High-rhythm and high-precision 90-degree turnover method

A high-rhythm and high-precision 90-degree turnover method, implemented based on a high-rhythm and high-precision 90-degree turnover apparatus, wherein the high-rhythm and high-precision 90-degree turnover apparatus comprises:

• a first drum conveyor line, configured to input a stacked assembly to be turned over, wherein the stacked assembly is placed on an iron pallet;
• a horizontal transfer module, configured to drive the first drum conveyor line to move left and right between a receiving station and a turnover station;
• a turnover module, configured to turn over the stacked assembly on the first drum conveyor line by 90 degrees at the turnover station and comprising a hinge base, a third support of which one side is rotatably disposed on the hinge base, a hydraulic cylinder configured to drive the third support to turn over, a second drum conveyor line disposed on the third support, a third motor fixed on the third support, a prong group which is configured to be driven by the third motor to move left and right and to be vertically arranged and interspersed in the second drum conveyor line, and a correction assembly which is disposed on the third support and is configured to correct a position of a wooden pallet on the second drum conveyor line;
• and
• a position adjustment mechanism comprising a range sensor configured to detect front and rear positions of the stacked assembly on the first drum conveyor line at the turnover station, and a fifth motor configured to adjust front and rear positions of the first drum conveyor line according to a result from the range sensor;
• the high-rhythm and high-precision 90-degree turnover method comprises following steps:
• in S1, conveying the iron pallet which carries the stacked assembly in place through the first drum conveyor line, and limiting a position of the stacked assembly;
• in S2, when S1 is being carried out, clamping a wooden pallet whose surface is paved with a separation plate, placing the wooden pallet on the second drum conveyor line, and correcting, through cooperation of the correction assembly and the prong group, left and right positions and up and down positions of the wooden pallet;
• and driving, by the hydraulic cylinder, the third support to turn over by 90 degrees, so that the prong group is in a horizontal state at a first height position, and the wooden pallet is in a vertical state to wait for the stacked assembly to be sent in;
• in S3, driving, by the horizontal transfer module, the first drum conveyor line to move leftward to the turnover station and at a set distance from a surface of the wooden pallet, so that the prong group inserts into the iron pallet and is located below the stacked assembly at this time;
• in S4, detecting, by the range sensor, the front and rear positions of the stacked assembly on the first drum conveyor line, and adjusting, by the fifth motor, the front and rear positions of the first drum conveyor line as a whole according to information of the positions of the first drum conveyor line to make the stacked assembly aligned with a center line of the wooden pallet;
• in S5, continuing, by the horizontal transfer module, to drive the first drum conveyor line to move leftward to make a left surface of the stacked assembly abut against a surface of the wooden pallet;
• in S6, evacuating the correction assembly, and driving, by the third motor, the prong group to move upward to a second height position to support the stacked assembly to make the stacked assembly separate from a surface of the iron pallet by a set height;
• and
• in S7, driving, by the horizontal transfer module, the first drum conveyor line to move rightward to the receiving station, outputting the iron pallet by the first drum conveyor line, and inputting a next iron pallet carrying a next stacked assembly;
• and at the same time, driving, by the hydraulic cylinder, the third support to turn over by 90 degrees reversely to make the second drum conveyor line turned over to a horizontal state to dispose the stacked assembly on the wooden pallet, and outputting, by the second drum conveyor line, the stacked assembly to implement outputting by turnover.