Equipment and method for automatically detecting magnetic flux of special magnetic steel for electronic power motor of steering wheel of automobile

Abstract

The invention relates to equipment and a method for automatically detecting the magnetic flux of special magnetic steel for an electronic power motor of a steering wheel of an automobile. The equipment consists of a detection waiting platform, a detection platform, a rotary table and a charging hopper frame which are sequentially arranged, wherein a discharging cylinder pushing rod is arranged at one end of the detection waiting platform, and a detection waiting movement station is arranged at the other end of the detection waiting platform; a magnetic steel discharging hopper frame is further arranged on the detection waiting platform and is positioned between the discharging cylinder pushing rod and the detection waiting movement station; a movement manipulator is arranged on the detection platform; a vacuum suction cup is arranged below the material taking end of the movement manipulator; a charging pushing rod and six graded material baskets are arranged on the rotary table; the material baskets and the charging hopper frame are correspondingly placed. The equipment has the benefits that the equipment replaces a mode of manually detecting and sorting the magnetic steel, so that the labor production rate is effectively improved, the production cost is reduced, errors in the manual detection and sorting processes are reduced, and the quality of products is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of detection equipment, and in particular relates to an automatic detection device and a detection method for the magnetic flux of a magnetic steel special for an electronic power-assisted motor of an automobile steering wheel. Background technique [0002] 1. The current status and shortcomings of the magnetic material industry [0003] 1. The electronic power-assisted motor for the steering wheel of a car is a permanent magnet motor. Its rotor structure needs to use multiple pieces of long and thin magnetic steel to synthesize a permanent magnetic field. complex features. [0004] 2. The electronic power-assisted motor of the automobile steering wheel has high requirements on the consistency of the magnetic flux performance index of the special magnetic steel. The difference rate of the magnetic flux value between each magnetic steel on the same motor rotor must be controlled within 2%, so in the producti...

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Problems solved by technology

[0004] 2. The electronic power-assisted motor of the automobile steering wheel has high requirements on the consistency of the magnetic flux performance index of the special magnetic steel. The difference rate of the magnetic flux value between each magnetic steel on the same motor rotor must be controlled within 2%, so in the production process In the process, each piece of finished magnetic steel needs to be carefully inspected and selected. Only those that meet the standard value are qualified. Those that exceed the standard value must be removed and cannot be mixed in, otherwise it will affect the performance of the entire motor.

Due to the small size and large quantity of the magnetic steel, there are some slight differences in the magnetic flux value of each piece of magnetic steel, so the sorting workers are very hard. Each person has to sort tens of thousands of pieces of steel and steel every few seconds. , the eyes keep staring at the jumping and changing data on the electronic screen of the testing instrument for a second, and the hands keep taking up and down the magnets up and down, left and right, and sort the magnets into A, B, C, D, E, F Among the six baskets with different values, the attention is highly concentrated, and the eyesight is very tired. A slight misreading of the values ​​or misclassification of the baskets will cause serious quality accidents. Therefore, in the production process of the magnetic steel industry, this inspection post The workers are not only hardworking, but also very inefficient, and the quality is difficult to effectively guarantee, so it is in great need of improvement

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