Motor iron core and processing technology thereof

Abstract

The invention discloses a motor iron core and a processing technology thereof, and the processing technology comprises the following steps: firstly, selecting a low-carbon low-silicon cold-rolled steel sheet as a molding raw material, carrying out degreasing treatment, then carrying out leveling through a leveling machine, and carrying out high-speed punching molding through a high-speed punching machine and a high-precision progressive die, then a rough blank workpiece obtained after punch forming is placed on a polishing machine to be polished, cleaned and dried; the method comprises the following steps: drying a rough blank workpiece, immersing the dried rough blank workpiece into a water immersion box with a water-based antirust agent, carrying out antirust performance treatment, overlapping the workpieces together through a manipulator, enabling the positions of grooves and holes in the workpieces to correspond to each other, and placing the overlapped workpiece group into a shaping die for pressurizing and shaping to obtain a finished product of the motor iron core. The motor iron core prepared by adopting the processing technology disclosed by the invention has the advantages of excellent insulativity and antirust effect, low toxicity and better environmental protection property.

Description

Technical Field

[0001] The invention relates to the technical field of motor component processing, in particular to a motor iron core and a processing technology thereof. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. It is represented by the letter M (D in the old standard) in the circuit. Its main function is to generate driving torque as a power source for electrical appliances or various machines. A generator is represented by the letter G in the circuit. Its main function is to convert mechanical energy into electrical energy. Currently, the most common method is to use heat energy, water energy, etc. to drive the generator rotor to generate electricity.

[0003] The motor core is an essential component of the motor. The existing motor core has the following defects:

[0004] 1. Poor insulation effect;

[0005] 2. The anti-rust effect is not good and it is easy to rust after long-term use;

[0006] 3. It contains a large amount of chromium and is not very environmentally friendly. Summary of the invention

[0007] In view of the above problems, the present invention provides a motor core and a processing technology thereof, wherein the motor core produced has good insulation, good rust prevention effect, low toxicity and good environmental protection.

[0008] The technical solution adopted by the present invention is as follows:

[0009] A process for processing a motor core comprises the following steps:

[0010] S1. Select low-carbon and low-silicon cold-rolled steel plates as forming raw materials;

[0011] S2, degreasing the raw materials and transferring them to a continuous furnace for incomplete annealing to obtain prefabricated steel plates;

[0012] S3, leveling the prefabricated steel plate by a leveling machine, and performing high-speed stamping by a high-speed stamping machine and a high-precision progressive die to obtain a rough blank workpiece;

[0013] S4, placing the rough workpiece after stamping on a polishing machine for polishing;

[0014] S5, cleaning the polished formed motor core by a cleaning device, and then drying the surface moisture by a drying box;

[0015] S6. Immerse the dried rough workpiece in a water immersion tank with a water-based rust inhibitor to perform rust-proof treatment;

[0016] S7, stacking the workpieces together by a manipulator, and making the slots and holes on each workpiece correspond to each other, placing the stacked workpiece group in a shaping mold for pressurizing and shaping, and obtaining a finished motor core part;

[0017] S8. The finished motor core parts are sealed by drying in plastic bags for packaging and storage.

[0018] In a further technical solution, in step S1, the chemical composition of the low-carbon and low-silicon cold-rolled steel sheet is as follows by weight percentage:

[0019] C≤0.004%, Si: 0.4%-0.9%, Als: 0.1%-0.2%, Mn: 0.2%-0.3%, O≤0.002%, P: 0.02%-0.03%, S≤0.003%, N≤0.004%.

[0020] In a further technical solution, in step S6, the upper layer of the immersion tank is filled with inert gas.

[0021] In a further technical solution, in step S7, the depth of each groove on the workpiece is half of the workpiece.

[0022] In a further technical solution, the following steps are also included:

[0023] Spray an insulating layer on the surface of the workpiece after anti-rust treatment.

[0024] The present invention also provides a technical solution for a motor core, which is specifically prepared by adopting the above-mentioned processing technology.

[0025] The beneficial effects of the present invention are as follows: the motor core manufactured by adopting the processing technology of the present invention has excellent insulation and rust-proof effects, low toxicity and good environmental protection. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below.

[0027] Embodiment 1:

[0028] A process for processing a motor core comprises the following steps:

[0029] S1. Select low-carbon and low-silicon cold-rolled steel plates as forming raw materials;

[0030] S2, degreasing the raw materials and transferring them to a continuous furnace for incomplete annealing to obtain prefabricated steel plates;

[0031] S3, leveling the prefabricated steel plate by a leveling machine, and performing high-speed stamping by a high-speed stamping machine and a high-precision progressive die to obtain a rough blank workpiece;

[0032] S4, placing the rough workpiece after stamping on a polishing machine for polishing;

[0033] S5, cleaning the polished formed motor core by a cleaning device, and then drying the surface moisture by a drying box;

[0034] S6. Immerse the dried rough workpiece in a water immersion tank with a water-based rust inhibitor to perform rust-proof treatment;

[0035] S7, stacking the workpieces together by a manipulator, and making the slots and holes on each workpiece correspond to each other, placing the stacked workpiece group in a shaping mold for pressurizing and shaping, and obtaining a finished motor core part;

[0036] S8. The finished motor core parts are sealed by drying in plastic bags for packaging and storage.

[0037] In another embodiment, in step S1, the chemical composition of the low-carbon and low-silicon cold-rolled steel sheet is as follows by weight percentage:

[0038] C≤0.004%, Si: 0.4%-0.9%, Als: 0.1%-0.2%, Mn: 0.2%-0.3%, O≤0.002%, P: 0.02%-0.03%, S≤0.003%, N≤0.004%.

[0039] In another embodiment, in step S6, the upper layer of the immersion tank is filled with inert gas.

[0040] In another embodiment, in step S7, the depth of each groove on the workpiece is half of the workpiece.

[0041] In another embodiment, the following steps are also included:

[0042] Spray an insulating layer on the surface of the workpiece after anti-rust treatment.

[0043] Embodiment 2:

[0044] A motor core is prepared by the processing technology described in Example 1.

[0045] 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 process for processing a motor core, characterized in that: The following steps are involved: S1. Select low-carbon and low-silicon cold-rolled steel plates as forming raw materials; S2, degreasing the raw materials and transferring them to a continuous furnace for incomplete annealing to obtain prefabricated steel plates; S3, leveling the prefabricated steel plate by a leveling machine, and performing high-speed stamping by a high-speed stamping machine and a high-precision progressive die to obtain a rough blank workpiece; S4, placing the rough workpiece after stamping on a polishing machine for polishing; S5, cleaning the polished formed motor core by a cleaning device, and then drying the surface moisture by a drying box; S6. Immerse the dried rough workpiece in a water immersion tank with a water-based rust inhibitor to perform rust-proof treatment; S7, stacking the workpieces together by a manipulator, and making the slots and holes on each workpiece correspond to each other, placing the stacked workpiece group in a shaping mold for pressurizing and shaping, and obtaining a finished motor core part; S8. The finished motor core parts are sealed by drying in plastic bags for packaging and storage.

2. The processing technology of the motor core according to claim 1, characterized in that: In step S1, the chemical composition of the low-carbon and low-silicon cold-rolled steel sheet is as follows by weight percentage: C≤0.004%, Si: 0.4%-0.9%, Als: 0.1%-0.2%, Mn: 0.2%-0.3%, O≤0.002%, P: 0.02%-0.03%, S≤0.003%, N≤0.004%.

3. The processing technology of the motor core according to claim 1, characterized in that: In step S6, the upper layer of the immersion tank is filled with inert gas.

4. The processing technology of the motor core according to claim 1, characterized in that: In step S7, the depth of each groove on the workpiece is half of the workpiece.

5. The processing technology of the motor core according to claim 1, characterized in that: The following steps are also included: Spray an insulating layer on the surface of the workpiece after anti-rust treatment.

6. A motor core, characterized in that: The motor core is manufactured by using the processing technology described in any one of claims 1-5.