Multi-station automatic piezoelectric machine for cast-aluminum rotor and method thereof

Abstract

Provided is a multi-station automatic piezoelectric machine for a cast-aluminum rotor and a method thereof. A pressure-casting device of a multi-station pressure-casting device is connected and fixedwith a mold-closing mechanism of an oil cylinder. A multi-station device is arranged onto a rotary servo mechanism and connected and fixed with the rotary servo mechanism. The rotary servo mechanism can rotate at 360 degrees. When the mechanism rotates at every 90 degrees, four stations are arranged. The center line of the rotary servo mechanism is deviated from the hole center line of a four-station template at the distance of fixed value. Additionally, the center line of the pressure-casting device, the center line of the four-station template and the center line of an injection mechanism are vertical and collinear. The mold-closing mechanism of the oil cylinder drives the pressure-casting device to vertically and downwardly move and tightly press the cast-aluminum rotor. The mold-closing mechanism, the pressure-casting device and the cast-aluminum rotor are integrally formed. The machine is simple in operation and high in work efficiency and reduces the potential safety hazard, relieves labor intensity of workers and achieves automated, intelligent and integrated production. An air pore, a broken strip and insufficient pouring of the cast-aluminum rotor are avoided. Aluminum losses and stray losses are reduced in order to increase efficiency of a motor. Energy is saved. The labor condition is improved.

Description

technical field [0001] The invention relates to the field of motors, in particular to a device and method for a cast aluminum rotor of a multi-station automatic piezo motor. Background technique [0002] The quality of cast aluminum rotors of ultra-high-efficiency motors determines the motor output, load starting torque and overload capacity. In the production process, the rotor die-casting aluminum process is a special process. 99.7% of the aluminum ingots are melted from a solid state at about 700°C to form a liquid state, and then die-cast into the rotor punching slot to form a solid state. This is a very critical process. During the process, the air in the aluminum hydraulic pressure tank needs to be removed in time, the accumulation of impurities and other factors will cause defects in the quality of the die-casting aluminum rotor. Therefore the entire die casting process is a very important and special requirement. [0003] In the production process, due to the diffe...

AI Technical Summary

Problems solved by technology

[0005] 1. The space of the vertical four-column die-casting machine body is narrow, it is inconvenient to enter and exit the workpiece and fixture, the loading and unloading of the mold is complicated, and the work efficiency is low;

[0006] 2. There is a big safety hazard. The die-casting machine and the melting furnace are separated by a certain distance, and the high-temperature molten aluminum is manually scratched. In the process of running, the molten aluminum will be shallow on the person's body or feet, which will cause burns.

Safety accidents will occur and energy will be wasted;

[0007] 3. The environmental protection system is unreasonable, and the splash of aluminum liquid and gas may be more harmful to personal safety;

[0008] 4. Great impact on the quality of the motor: 1) The unreasonable design of the mold fixture is difficult to discharge the gas, and the aluminum liquid is punching at high speed. If the gas in the cavity is too late to be discharged, it will be involved in the thicker metal and produce pores; 2) Die casting Improper adjustment of the process parameters, too small pressure will lead to broken bars, thin bars and insufficient filling defects of the cast aluminum rotor; too large will cause the mold fixture to be impacted by the aluminum liquid, forming a sticky mold, increasing the wear of the mold, and reducing the use of the mold fixture life;

[0009] 5. Increase the labor intensity of operators. The die-casting process generally requires 2 to 3 people to cooperate with the operation. There is no automatic device at high temperature and manual loading, demoulding, and unloading are required.

[0010] 6. The cast aluminum process of this device is difficult to realize automation and intelligent production, and the equipment investment cost is also high

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