Magnetic shoe bonding tool and auxiliary device for motor stator

Abstract

The invention relates to a special chain-pole viscous magnetic tile frock of a permanent magnet motor stator, which includes a shelf for placing the magnetic tile, a magnetic-tile pushing device and a position device. The shelf for placing the magnetic tile is sleeved outside the magnetic-tile device and the magnetic tile coated with the magnetic adhesive is placed on the shelf for placing the magnetic tile; the magnetic-tile pushing device includes a hinge active sheet and a pushing pole; the position device includes an upper fixed frame with an axial position and a lower fixed frame with a radial position; the hinge active sheet is respectively connected with the pushing pole and the upper and lower fixed frames. The invention also relates to an assistant device which can be used together with the viscous magnetic tile frock, including a shelf for placing a motor shell, a tight-pressing and preserved-pressing device, a rotary disk device and a pedestal. The shelf for placing a motor shell and the tight-pressing and preserved-pressing device are respectively fixed on the rotary disk device and a bearing is arranged in the rotary disk device. Through the combination of the viscous magnetic tile frock and the assistant device, more rapid, more accurate and more reliable operation of the viscous magnetic tile of the motor stator as well as the production line with high efficiency and operation with the low cost can be realized.

Description

technical field [0001] The invention belongs to the field of motors, and relates to a stator sticky tile tooling of a permanent magnet motor. Background technique [0002] With the continuous development of society, the degree of automation of various electrical equipment is getting higher and higher, and the use of motors is also increasing, especially DC motors will be used more and more widely. Permanent magnet DC motors are characterized by stable performance, large torque, etc. Advantages and widely used in various household appliances, power equipment, precision testing equipment, automotive electrical appliances, etc. At present, the fixing methods of the stator magnetic tiles of permanent magnet motors include spring fastening, slot insertion, and strong adhesive There are many kinds of sticking types, among which the strong glue sticking type is widely used, but the sticking process is more complicated. It not only requires the glue used to withstand various complex...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of society, the degree of automation of various electrical equipment is getting higher and higher, and the use of motors is also increasing, especially DC motors will be used more and more widely. Permanent magnet DC motors are characterized by stable performance, large torque, etc. Advantages and widely used in various household appliances, power equipment, precision testing equipment, automotive electrical appliances, etc. At present, the fixing methods of the stator magnetic tiles of permanent magnet motors include spring fastening, slot insertion, and strong adhesive There are many kinds of sticking types, among which the strong glue sticking type is widely used, but the sticking process is more complicated. It not only requires the glue used to withstand various complex and harsh environments and large torque, but also requires magnetic tiles to stick The angle of each position on the casing must be very accurate to ensure that the performance of the motor can reach the performance expected by the designer. Among them, the magnetic tile process is a process that restricts production capacity on the motor production line. According to the inventor's understanding, the used by various enterprises The sticky magnetic tile tooling either has high efficiency and high precision, but the cost is also high, or it is low cost but not accurate enough, and the efficiency is low, which cannot meet the production requirements.

Generally speaking, there are mainly the following problems in bonding magnets: 1): From the top to the bottom, the horizontal position of the magnets cannot be effectively guaranteed. After magnetization, the effective core length of the motor becomes shorter, the output power becomes smaller, and the output is not good. Stability; 2): The angle of the magnetic steel on the circumference of the casing cannot be effectively guaranteed, which causes the magnetic field to be unevenly distributed in a circle, which will greatly reduce the efficiency and power of the motor, and will lead to unstable torque output; 3): The circumferential concentricity of the magnetic steel after bonding is not good, because it is inevitable that there will be uneven application when applying the magnetic steel adhesive. If there is no guarantee of special tooling, the adhesive will be coated after bonding The thickness of the layer is uneven, which leads to poor concentricity of the magnetic steel, and even the phenomenon of bore sweeping; 4): The bonding of the magnetic steel is not guaranteed, because the magnetic steel adhesives on the market require a certain amount of holding pressure and holding time, if the above two items are not satisfied, it is also prone to poor concentricity of the magnetic steel and weak bonding of the magnetic steel, and in extreme cases, the phenomenon of magnetic steel falling off; Excessive pressure causes the magnetic steel to break, etc.

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