Wheel automatic closed die forging production line and aluminum alloy wheel

A wheel automatic closed die forging production line, comprising:

• a sawing machine, a first transfer track, a bar heating furnace, a first manipulator, an oscillating rolling machine, a second manipulator, a primary forging hydraulic machine, an intermediate heating furnace, a third manipulator, a finish forging hydraulic machine, a wheel transfer block, a fourth manipulator, a cutting, expanding and punching hydraulic machine, a second transfer track, a spinning machine, a fifth manipulator, a third transfer track, a heat treatment furnace, a fourth transfer track, a machining unit, a sixth manipulator and a fifth finished product track;
• wherein the sawing machine is used for machining bars which meet forging requirements;
• the first transfer track is arranged between the sawing machine and the bar heating furnace, and is used for transferring the bars;
• the bar heating furnace is used for preheating the bars, and the temperature can be controlled at 470-500 DEG C.;
• the first manipulator is arranged between the bar heating furnace and the oscillating rolling machine, and is used for transferring the bars;
• the oscillating rolling machine is used for carrying out spin-forging machining on a wheel blank;
• the second manipulator is arranged among the oscillating rolling machine, the primary forging hydraulic machine and the intermediate heating furnace, and is used for transferring the wheel blank from the oscillating rolling machine to the primary forging hydraulic machine and transferring the wheel blank from the primary forging hydraulic machine to the intermediate heating furnace;
• the primary forging hydraulic machine is used for carrying out primary closed die forging on the wheel blank;
• the intermediate heating furnace is arranged between the primary forging hydraulic machine and the finish forging hydraulic machine, and is used for carrying out intermediate heating of closed die forging of the wheel blank, and the temperature can be controlled at 470-500 DEG C.;
• the finish forging hydraulic machine is used for carrying out finish closed die forging of the wheel blank;
• the third manipulator is arranged among the intermediate heating furnace, the finish forging hydraulic machine and the wheel transfer block, and is used for transferring the wheel blank from the intermediate heating furnace to the finish forging hydraulic machine and transferring the wheel blank from the finish forging hydraulic machine to the wheel transfer block;
• the fourth manipulator is arranged among the wheel transfer block, the cutting, expanding and punching hydraulic machine and the second transfer track, and is used for transferring the wheel blank from the wheel transfer block to the cutting, expanding and punching hydraulic machine and transferring the wheel blank from the cutting, expanding and punching hydraulic machine to the second transfer track;
• and the cutting, expanding and punching hydraulic machine is used for carrying out edge cutting, hole expanding, rim flaring, window punching and central hole punching composite forging on the wheel blank, the second transfer track is arranged between the cutting, expanding and punching hydraulic machine and the spinning machine, and is used for transferring the wheel blank;
• the fifth manipulator is arranged among the second transfer track, the spinning machine and the third transfer track, and is used for transferring the wheel blank from the second transfer track to the spinning machine and transferring the wheel blank from the spinning machine to the third transfer track;
• the spinning machine is used for machining the rim of the wheel blank;
• the third transfer track is arranged between the spinning machine and the heat treatment furnace, and is used for transferring the wheel blank;
• the heat treatment furnace is used for treating the temperature of the wheel blank, and is a continuous operation furnace, and the temperature can be respectively maintained at three temperature ranges including 470-500 DEG C., 70-100 DEG C. and 150-180 DEG C.;
• the fourth transfer track is arranged between the heat treatment furnace and the machining unit, and is used for transferring the wheel blank;
• the machining unit is used for machining the wheel blank until the wheel blank meets the requirement of a product chart;
• the sixth manipulator is arranged among the fourth transfer track, the machining unit and the fifth finished product track, and is used for transferring the wheel blank from the fourth transfer track to the machining unit and transferring a finished wheel from the machining unit to the fifth finished product track;
• and the fifth finished product track is used for discharging the finished wheel;
• wherein a die for closed die forging of each of the primary forging hydraulic machine and the finish forging hydraulic machine comprises an upper die base, an upper die core, an upper ejector, a lower die base, a pressure bearing plate, a lower die core, a lower ejector, a lower die plate and an upper die plate;
• each pressure bearing plate is fastened to the bottom surface of the corresponding upper die plate, each upper die base is fixed around the outer periphery of the corresponding pressure bearing plate, the outer periphery of each pressure bearing plate is clamped between the corresponding upper die plate and the corresponding upper die base, each upper die core is fixed on the bottom surface of the corresponding pressure bearing plate, the upper end of each upper die core is in contact with the corresponding upper die base, and each upper ejector is fixedly arranged at the center positions of the corresponding upper die plate, the corresponding pressure bearing plate and the corresponding upper die core in a penetrating manner;
• each lower die base is fastened to the top of the corresponding lower die plate, each lower die core is fastened to the recess of the middle of the corresponding lower die base, and each lower ejector is fixedly arranged at the center positions of the corresponding lower die plate, the corresponding lower die base and the corresponding lower die core in a penetrating manner;
• and the tip portion of each upper ejector is opposite to the tip portion of the corresponding lower ejector, and wheel blank materials are placed in the middles of each upper die core and the corresponding lower die core;
• wherein the cutting, expanding and punching hydraulic machine comprises a lower die base, a pedestal, a supporting column, a lower die, window punches, a flaring block, a central hole punch, an upper die, an upper die base bottom plate, a wheel blank and an upper die base;
• the pedestal is fixed to the top of the lower die base, the supporting column is fixed on the pedestal, the lower die is fixed on the supporting column, and the wheel blank is fixed on the lower die;
• the upper die base bottom plate is fixed under the upper die base, the upper die is fixed on the upper die base bottom plate;
• the flaring block is fixed at the edge of the upper die, the window punches are further arranged at the positions, which are close to the flaring block, of the upper die, and the central hole punch is arranged at the center position of the upper die;
• and
• the oscillating rolling machine is an automatic spin-forging press.