Motor rotor processing technology

Abstract

The invention discloses a motor rotor machining process which comprises the following steps: selecting an alloy material, casting to obtain rough blanks of all parts of a motor rotor, turning the surfaces of the rough blanks of all the parts, adopting a horizontal machine tool, igniting a cutting torch, adjusting to be rich oxidizing flame, enabling the flame to be in a cutting state, keeping a distance of 10-15mm between a muzzle and the surfaces of the parts, and turning the surfaces of the rough blanks of all the parts; uniformly heating the surfaces of the parts twice to finish fine treatment on the surfaces of the parts to obtain a semi-finished product of the motor rotor; carrying out magnetization treatment on the semi-finished product of the motor rotor, and then carrying out dynamic balance test and correction to ensure that the motor rotor is still kept balanced during high-speed operation; and finish turning the outer edge of the semi-finished motor rotor. The motor rotor processing technology is high in processing precision, and the assembled motor is excellent in performance.

Description

Technical Field

[0001] The invention relates to the technical field of motor rotor processing, in particular to a motor rotor processing technology. Background Art

[0002] The motor rotor is the rotating part in the motor. The motor consists of two parts: the rotor and the stator. It is a device used to realize the conversion of electrical energy into mechanical energy and mechanical energy into electrical energy.

[0003] Currently, the commonly used motor rotor processing technologies include silicon steel sheet stamping and steel casting. Among them, when using the casting process to process the motor rotor, in order not to affect the motor performance, the motor rotor surface processing accuracy is required to be extremely high. Summary of the invention

[0004] In view of the above problems, the present invention provides a motor rotor machining process with high machining accuracy and excellent motor performance.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A motor rotor processing technology comprises the following steps:

[0007] S1. Select appropriate alloy materials according to the use scenario requirements of the motor, accurately design the mold according to the drawings, set the casting parameters, and cast the rough blanks of the motor rotor components;

[0008] S2, use a large rake angle turning tool and YW-type blade, with a cutting speed of 120m / min and a feed rate of 0.2-0.3mm / r to turn the rough surface of each component;

[0009] S3. Use a horizontal machine tool, light the cutting torch, adjust it to an oxidizing flame, make the flame in a cutting state, keep the muzzle 10-15mm away from the surface of the component, and evenly heat the surface of the component twice. The feed rate is 6mm / r and the speed is 130-160mm / s to complete the fine treatment of the surface of each component;

[0010] S4, assembling various components to obtain a semi-finished motor rotor;

[0011] S5, placing the motor rotor semi-finished product in a magnetic field for magnetization treatment, so as to magnetize the motor rotor core and improve the magnetic flux density and magnetic properties of the rotor;

[0012] S6. Perform dynamic balancing test and calibration on the semi-finished motor rotor after magnetization to ensure that the motor rotor remains balanced when running at high speed;

[0013] S7. Finish-machine the outer edge of the semi-finished motor rotor to meet the motor air gap accuracy requirements. The outer circle of the rotor should be coaxial with the bearing seat; the dimensional accuracy and roughness of the outer circle of the rotor must meet the design requirements; the punching sheet should not have reverse teeth, and the core teeth should not have inter-axial tilt;

[0014] S8. Performing surface anti-corrosion treatment on the finely processed motor rotor semi-finished product to obtain the motor rotor finished product, and then packaging and storing it.

[0015] In a further technical solution, in step S8, a high-strength anti-corrosion coating is applied to the surface of the motor rotor semi-finished product. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below.

[0017] Example:

[0018] A motor rotor processing technology comprises the following steps:

[0019] S1. Select appropriate alloy materials according to the use scenario requirements of the motor, accurately design the mold according to the drawings, set the casting parameters, and cast the rough blanks of the motor rotor components;

[0020] S2, use a large rake angle turning tool and YW-type blade, with a cutting speed of 120m / min and a feed rate of 0.2-0.3mm / r to turn the rough surface of each component;

[0021] S3. Use a horizontal machine tool, light the cutting torch, adjust it to an oxidizing flame, make the flame in a cutting state, keep the muzzle 10-15mm away from the surface of the component, and evenly heat the surface of the component twice. The feed rate is 6mm / r and the speed is 130-160mm / s to complete the fine treatment of the surface of each component;

[0022] S4, assembling various components to obtain a semi-finished motor rotor;

[0023] S5, placing the motor rotor semi-finished product in a magnetic field for magnetization treatment, so as to magnetize the motor rotor core and improve the magnetic flux density and magnetic properties of the rotor;

[0024] S6. Perform dynamic balancing test and calibration on the semi-finished motor rotor after magnetization to ensure that the motor rotor remains balanced when running at high speed;

[0025] S7. Finish-machine the outer edge of the semi-finished motor rotor to meet the motor air gap accuracy requirements. The outer circle of the rotor should be coaxial with the bearing seat; the dimensional accuracy and roughness of the outer circle of the rotor must meet the design requirements; the punching sheet should not have reverse teeth, and the core teeth should not have inter-axial tilt;

[0026] S8. Coating a high-strength anti-corrosion coating on the surface of the semi-finished motor rotor, performing surface anti-corrosion treatment, obtaining the motor rotor finished product, and packaging and storing it.

[0027] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A motor rotor processing technology, characterized in that: The following steps are involved: S1. Select appropriate alloy materials according to the use scenario requirements of the motor, accurately design the mold according to the drawings, set the casting parameters, and cast the rough blanks of the motor rotor components; S2, use a large rake angle turning tool and YW-type blade, with a cutting speed of 120m / min and a feed rate of 0.2-0.3mm / r to turn the rough surface of each component; S3. Use a horizontal machine tool, light the cutting torch, adjust it to an oxidizing flame, make the flame in a cutting state, keep the muzzle 10-15mm away from the surface of the component, and evenly heat the surface of the component twice. The feed rate is 6mm / r and the speed is 130-160mm / s to complete the fine treatment of the surface of each component; S4, assembling various components to obtain a semi-finished motor rotor; S5, placing the motor rotor semi-finished product in a magnetic field for magnetization treatment, so as to magnetize the motor rotor core and improve the magnetic flux density and magnetic properties of the rotor; S6. Perform dynamic balancing test and calibration on the semi-finished motor rotor after magnetization to ensure that the motor rotor remains balanced when running at high speed; S7. Finish-machine the outer edge of the semi-finished motor rotor to meet the motor air gap accuracy requirements. The outer circle of the rotor should be coaxial with the bearing seat; the dimensional accuracy and roughness of the outer circle of the rotor must meet the design requirements; the punching sheet should not have reverse teeth, and the core teeth should not have inter-axial tilt; S8. Performing surface anti-corrosion treatment on the finely processed motor rotor semi-finished product to obtain the motor rotor finished product, and then packaging and storing it.

2. The motor rotor processing technology according to claim 1, characterized in that: In step S8, a high-strength anti-corrosion coating is coated on the surface of the motor rotor semi-finished product.