A magnet inserting machine and a magnet inserting method thereof

Abstract

The application provides a magnetic inserting machine and a magnetic inserting method thereof. The magnetic inserting machine comprises a motor shaft stabilizing unit, a magnetic steel placing unit and a magnetic steel mounting unit. The motor shaft stabilizing unit comprises a metal cylinder and a pressure stabilizing mechanism. The pressure stabilizing mechanism is located above the metal cylinder and is used for fixing a motor shaft placed in the metal cylinder. The magnetic steel placing unit comprises four magnetic steel placing grooves. The top of each of the four magnetic steel placing grooves is provided with a slot for placing a magnetic steel. The magnetic steel mounting unit comprises two groups of magnetic separation push pieces, a first power member and a second power member. The first power member and the second power member are used for mounting magnetic steels with different magnetic poles on the motor shaft in sequence. The magnetic steels are mounted perfectly in cooperation with the properties of the magnetic steels, so that the efficiency of the magnetic steel mounting is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inserting magnetic technology, in particular to a magnetic inserting machine and a magnetic inserting method thereof. BACKGROUND

[0002] Generally, the motor mainly consists of a motor shaft, a stator, a rotor, and a motor shell. In the prior art, the rotor is composed of four magnetic steels combined together, and the four magnetic steels are S-pole magnetic steels-N-pole magnetic steels-S-pole magnetic steels-N-pole magnetic steels arranged around a closed loop. In the actual installation of the magnetic steels on the motor shaft, the magnetic steels are prone to be attracted together, i.e., the S-pole magnetic steels and the S-pole magnetic steels are prone to be attracted together, which greatly affects the production efficiency. The traditional improved technology product in this field, such as Chinese Patent Application No. CN201621080996.2, proposes an automatic magnetic steel inserting machine for installing magnetic steels on a motor shaft, which greatly improves the production efficiency of the motor shaft with magnetic steels. However, the magnetic explosion phenomenon sometimes occurs in the production process. Therefore, a magnetic inserting machine and a magnetic inserting method thereof are proposed to overcome the problems of the traditional technology. SUMMARY

[0003] The present application aims to overcome the defects of the prior art, and proposes a magnetic inserting machine and a magnetic inserting method thereof.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is as follows: a magnetic inserting machine, comprising: a motor shaft stabilizing unit, the motor shaft stabilizing unit comprising a metal cylinder and a stabilizing mechanism, the stabilizing mechanism being located directly above the metal cylinder for fixing a motor shaft placed in the metal cylinder;

[0005] a magnetic steel placing unit, the magnetic steel placing unit comprising four magnetic steel placing channels, each of the four magnetic steel placing channels being provided with a slot at the top for placing a magnetic steel, the four magnetic steel placing channels being spaced apart to place N-pole magnetic steels and S-pole magnetic steels, and the four magnetic steel placing channels being evenly distributed on the outer wall of the metal cylinder so that the four magnetic steels can be evenly sleeved on the outer wall of the motor shaft;

[0006] a magnetic steel installing unit, the magnetic steel installing unit comprising two groups of magnetic separation push pieces, a first power member, and a second power member, the first power member and the second power member being fixedly connected with the two groups of magnetic separation push pieces for giving power to the two groups of magnetic separation push pieces, the two groups of magnetic separation push pieces being located between the metal cylinder and the four magnetic steel placing channels, and each group of magnetic separation push pieces being capable of pushing the magnetic steels of the same magnetic pole to the outer wall of the motor shaft.

[0007] Further, a magnetic separation disc is arranged between the four magnetic steel placing grooves, a circular hole is formed in the middle of the magnetic separation disc, the metal cylinder is arranged in the circular hole, the radius of the circular hole is not less than the radius of the metal cylinder plus the thickness of the magnetic steel, and is not greater than the radius of the metal cylinder plus the thickness of two magnetic steels.

[0008] Further, a circuit unit is further included, the circuit unit includes a controller, the controller is arranged on the magnetic steel placing groove, a plurality of button devices are arranged on the controller, and the plurality of button devices are electrically connected with the first power piece, the second power piece, the voltage stabilizing mechanism and the controller to facilitate the control of the operation of each electric appliance.

[0009] Further, the voltage stabilizing mechanism includes an electric telescopic device and a pressing block, the pressing block is located directly above the metal cylinder, and the pressing block is connected with the telescopic end of the electric telescopic device to fix the top of the motor shaft.

[0010] Further, the first power piece and the second power piece are both electric telescopic devices.

[0011] Further, each of the two groups of magnetic separation push pieces is composed of two magnetic separation blocks and an L-shaped block, one magnetic separation block is fixed at each end of the L-shaped block, and the power end of the first power piece and the second power piece is fixedly connected with the L-shaped block.

[0012] Further, the four magnetic steel placing grooves are mutually isolated from the metal cylinder, the isolation distance between the magnetic steel placing grooves and the metal cylinder is not less than the thickness of the magnetic separation push piece, and is not less than the thickness of one magnetic steel.

[0013] Further, a baffle is arranged at the top of the metal cylinder away from the magnetic steel placing groove.

[0014] Further, a mounting frame is further included, the mounting frame is fixedly installed with the electric telescopic device through a connecting plate, and the four magnetic steel placing grooves are fixedly installed on the mounting frame.

[0015] A magnetic insertion method, comprising the following steps:

[0016] Step one: placing the motor shaft in the metal cylinder and fixing the motor shaft through the voltage stabilizing device;

[0017] Step two: placing N-pole magnetic steels and S-pole magnetic steels in the four magnetic steel placing grooves evenly distributed around the metal cylinder;

[0018] Step three: arranging magnetic separation push pieces between the four magnetic steel placing grooves and the metal cylinder to mutually isolate the placed N-pole magnetic steels and S-pole magnetic steels from the metal cylinder, and to mutually isolate the adjacent N-pole magnetic steels and S-pole magnetic steels to avoid magnetic explosion.

[0019] Step four: the controller controls the first power member to drive the first group of magnetic isolation push piece to move downward to make two N-pole magnetic steel lose the magnetic isolation of the magnetic isolation push piece and be adsorbed on the periphery of the metal cylinder, and the controller controls the first power member to move upward to push the first group of magnetic isolation push piece upward, so that two N-pole magnetic steel is sleeved on the outer wall of the motor shaft and is limited mutually, at this time, the first group of magnetic isolation push piece restores the initial magnetic isolation state;

[0020] Step five: the controller controls the second power member to drive the second group of magnetic isolation push piece to move downward to make two S-pole magnetic steel lose the magnetic isolation of the magnetic isolation push piece and be adsorbed on the periphery of the metal cylinder, and the controller controls the second power member to move upward to push the second group of magnetic isolation push piece upward, so that two N-pole magnetic steel is sleeved on the outer wall of the motor shaft, so that the complete magnetic steel is sleeved on the outer wall of the motor shaft, at this time, the second group of magnetic isolation push piece restores the initial magnetic isolation state;

[0021] Step six: the suppression state of the stabilizing device is released, and the motor shaft with complete magnetic steel is taken out, so that the complete product is obtained.

[0022] Compared with the prior art, the beneficial effects of the present application include: the magnetic isolation push piece is arranged to isolate the N-pole magnetic steel and the S-pole magnetic steel from each other before installation, prevent magnetic explosion, and facilitate automatic installation of the magnetic steel on the motor shaft; when two N-pole magnetic steels are installed on the motor shaft at the same time, they interact to limit each other, and are installed vertically on the motor shaft; after the installation of two N-pole magnetic steels, the magnetic field of the N-pole magnetic steel is isolated by the magnetic isolation push piece, and two S-pole magnetic steels are pushed to the motor shaft for installation; when the two S-pole magnetic steels are installed, the two N-pole magnetic steels limit the two S-pole magnetic steels to be easily inserted into the gap between them and cooperate with each other to be adsorbed, and stop at the preset position; at this time, the S-pole magnetic steel-N-pole magnetic steel-S-pole magnetic steel-N-pole magnetic steel is perfectly adsorbed together. The magnetic steel is perfectly installed on the motor shaft. Compared with the traditional technical features, the problems solved by this technical feature are different, and there is obvious technical effect and creativity.

[0023] The first power member and the second power member are arranged to sequentially install magnetic steels of different magnetic poles on the motor shaft, cooperate with the properties of the magnetic steels, and perfectly realize the installation of the magnetic steels, greatly improving the installation efficiency of the magnetic steels.

[0024] The magnetic isolation push piece is arranged to have a limiting effect, so that the magnetic steel sheet is accurately adsorbed to the preset position of the metal cylinder when being adsorbed by the metal cylinder, facilitating subsequent installation. BRIEF DESCRIPTION OF DRAWINGS

[0025] The disclosure of the present application will be described with reference to the accompanying drawings. It is to be noted that the drawings are only used for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings, the same reference numerals are used to refer to the same parts. Among them:

[0026] Figure 1 The overall structure is schematically shown according to an embodiment of the present application;

[0027] Figure 2 The enlarged structure of the part of the above figure is schematically shown according to an embodiment of the present application;

[0028] Figure 3 The structure of the magnetic isolation push piece is schematically shown according to an embodiment of the present application;

[0029] Figure 4 The structure of the metal cylinder is schematically shown according to an embodiment of the present application;

[0030] Figure 5 The structure of the magnetic isolation disc is schematically shown according to an embodiment of the present application.

[0031] Figure label: 1, mounting frame; 2, magnetic isolation disc; 3, electric telescopic device; 4, magnetic steel placement channel; 5, slot; 6, baffle; 7, round hole; 8, button device; 9, metal cylinder; 10, magnetic isolation push piece; 11, first power piece; 12, second power piece; 13, U-shaped block; 14, magnetic isolation block. DETAILED DESCRIPTION

[0032] It is easy to understand that according to the technical solution of the present application, a person skilled in the art can propose a plurality of structures and implementation modes which can be replaced with each other without changing the essential spirit of the present application. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present application, and should not be regarded as the whole or regarded as the limitation or restriction of the technical solution of the present application.

[0033] According to an embodiment of the present application in combination Figure 1 and Figure 2 is shown. A magnetic insertion machine includes a motor shaft stabilizing unit, the motor shaft stabilizing unit includes a metal cylinder 9 and a pressure stabilizing mechanism, the pressure stabilizing mechanism is located directly above the metal cylinder 9 for fixing the motor shaft placed in the metal cylinder 9;

[0034] The magnetic steel placing unit comprises four magnetic steel placing grooves 4, each of the four magnetic steel placing grooves 4 is provided with a slot 5 at the top for placing the magnetic steel, the four magnetic steel placing grooves 4 are spaced apart for placing N-pole magnetic steels and S-pole magnetic steels, and the four magnetic steel placing grooves 4 are uniformly distributed on the outer wall of the metal cylinder 9 so as to uniformly wrap the four magnetic steels on the outer wall of the motor shaft.

[0035] The magnetic steel mounting unit comprises two groups of magnetic shielding pushers 10, a first power member 11 and a second power member 12, the first power member 11 and the second power member 12 are fixedly connected with the two groups of magnetic shielding pushers 10 for giving power to the two groups of magnetic shielding pushers 10, the two groups of magnetic shielding pushers 10 are located between the metal cylinder 9 and the four magnetic steel placing grooves 4, and each group of magnetic shielding pushers 10 can push the magnetic steels with the same magnetic pole to the outer wall of the motor shaft. First, the N-pole magnetic steels and the S-pole magnetic steels are placed in the slots 5 of the four magnetic steel placing grooves 4 in a spaced apart manner, so that the magnetic poles of the magnetic steels in the adjacent slots 5 are opposite, the magnetic shielding pushers 10 are arranged to isolate the magnetic steels from the metal cylinder 9, then the motor shaft is inserted into the metal cylinder 9, and then the motor shaft is fixed by the voltage stabilizing device, at this time, the power of the first power member 11 is started to move one group of magnetic shielding pushers 10 downward, at this time, the two magnetic steels with the same magnetic pole are attracted to the outer wall of the metal cylinder 9, then the first power member 11 is started again to move the magnetic shielding pushers 10 upward, the magnetic steels attracted to the metal cylinder 9 are pushed upward by the magnetic shielding pushers 10, at this time, only the magnetic steels with the same magnetic pole move upward, thereby avoiding the phenomenon of magnetic explosion. At this time, the magnetic shielding pushers 10 shield the force of the remaining magnetic steels on the metal cylinder 9. At this time, the second power member 12 is started to move the second group of magnetic shielding pushers 10 downward, at this time, the two magnetic steels with the other magnetic pole are attracted to the outer wall of the metal cylinder 9, then the second power member 12 is started again to move the second group of magnetic shielding pushers 10 upward to move the magnetic steels attracted to the metal cylinder 9 upward, so that the magnetic steels are moved to the motor shaft, and the N-pole magnetic steels and the S-pole magnetic steels are tightly wrapped on the outer wall of the motor shaft. Thus, the installation of the magnetic steels is completed. Then, the voltage stabilizing mechanism is pressed, the motor shaft is taken out, and thus the motor shaft containing the magnetic steels is obtained. Then, the motor shaft is inserted again, and the above-mentioned operation is repeated, so that the motor shaft containing the magnetic steels is continuously obtained. The device is simple and easy to operate, has high efficiency, and has high commercial value. The device utilizes the properties of various objects, and realizes the installation of the magnetic steels through ingenious combination, which has significant progress compared with the traditional magnetic steel installation and has creativity.

[0036] Specifically, as Figure 5As shown, the four magnetic steel placement channels 4 are provided with a magnetic separation disc 2, the middle of the magnetic separation disc 2 is provided with a circular hole 7, a metal cylinder 9 is arranged in the circular hole 7, the radius of the circular hole 7 is not less than the radius of the metal cylinder 9 plus the thickness of the magnetic steel, and is not greater than the radius of the metal cylinder 9 plus the thickness of two magnetic steels. The magnetic separation disc 2 is arranged to make only one magnetic steel in each slot 5 be uploaded to the outer wall of the motor shaft at a time. The efficiency of the device is improved.

[0037] Specifically, as shown in Figure 3 The circuit unit includes a controller, the controller is arranged on the magnetic steel placement channel 4, and a plurality of button devices 8 are arranged on the controller. The plurality of button devices 8 are electrically connected with the first power member 11, the second power member 12, the voltage stabilizing mechanism, and the controller to control the operation of each electric appliance. The arrangement of the circuit unit makes the device automatic, greatly improving the work efficiency.

[0038] Specifically, as shown in 2, the voltage stabilizing mechanism includes an electric telescopic device 3 and a pressing block. The pressing block is located directly above the metal cylinder 9 and is connected with the telescopic end of the electric telescopic device 3 to fix the top of the motor shaft. The power supply of the electric telescopic device 3 is started, and the electric telescopic device 3 drives the pressing block to move downward to fix the top of the motor shaft. The electric telescopic device can be an electric telescopic rod, a hydraulic rod or an air cylinder.

[0039] Specifically, as shown in Figure 3 The first power member 11 and the second power member 12 are both electric telescopic devices. A specific embodiment is provided. The electric telescopic device in this place can also be an electric telescopic rod, a hydraulic rod or an air cylinder.

[0040] Specifically, as shown in Figure 3 The two groups of magnetic separation push pieces 10 are both composed of two magnetic separation blocks 14 and a U-shaped block 13. The two ends of the U-shaped block 13 are respectively fixed with a magnetic separation block 14. The power end of the first power member 11 and the second power member 12 is fixedly connected with the U-shaped block. The two magnetic separation blocks 14 can simultaneously push two magnetic steels. This makes the device run more stably.

[0041] Specifically, as shown in Figure 2 The four magnetic steel placement channels 4 are all isolated from the metal cylinder 9. The isolation distance between the magnetic steel placement channel 4 and the metal cylinder 9 is not less than the thickness of the magnetic separation push piece and not less than the thickness of a magnetic steel. This facilitates the pushing of the magnetic steel onto the motor shaft.

[0042] Specifically, as shown in Figure 2 The magnetic steel placement channel 4 away from the top of the metal cylinder 9 is provided with a baffle 6. This facilitates the stable placement of the magnetic steel.

[0043] Specifically, as shown in Figure 1 and Figure 2As shown, it also includes a mounting frame 1, the mounting frame 1 is fixedly installed with the electric telescopic device 3 through a connecting plate, and four magnetic steel placing channels 4 are fixedly installed on the mounting frame 1. The mounting frame 1 is provided to integrate the device.

[0044] A magnetic insertion method, comprising the following steps:

[0045] Step one: place the motor shaft in the metal cylinder 9 and fix the motor shaft through the voltage stabilizing device;

[0046] Step two: place the N-pole magnetic steel and S-pole magnetic steel in the four magnetic steel placing channels 4 evenly distributed around the metal cylinder 9;

[0047] Step three: set the magnetic separation push piece 10 between the four magnetic steel placing channels 4 and the metal cylinder 9 to isolate the N-pole magnetic steel and S-pole magnetic steel placed from the metal cylinder 9 and isolate the adjacent N-pole magnetic steel and S-pole magnetic steel from each other;

[0048] Step four: the controller controls the first power piece 11 to move the first set of magnetic separation push pieces 10 downward to make the two N-pole magnetic steels lose the magnetic separation of the magnetic separation push pieces 10 and be adsorbed on the periphery of the metal cylinder 9, and the controller controls the first power piece 11 to move upward to push the first set of magnetic separation push pieces 10 upward, so that the two N-pole magnetic steels are sleeved on the outer wall of the motor shaft, at this time, the first set of magnetic separation push pieces 10 restores the initial magnetic separation state;

[0049] Step five: the controller controls the second power piece 12 to move the second set of magnetic separation push pieces 10 downward to make the two S-pole magnetic steels lose the magnetic separation of the magnetic separation push pieces 10 and be adsorbed on the periphery of the metal cylinder 9, and the controller controls the second power piece 12 to move upward to push the second set of magnetic separation push pieces 10 upward, so that the two N-pole magnetic steels are sleeved on the outer wall of the motor shaft, so as to combine the complete magnetic steel on the outer wall of the motor shaft, at this time, the second set of magnetic separation push pieces 10 restores the initial magnetic separation state.

[0050] Step six: release the pressing state of the voltage stabilizing device, take out the motor shaft with complete magnetic steel, and thus obtain the complete product.

[0051] In the embodiment, first, N-pole magnetic steel and S-pole magnetic steel are placed in the slots 5 of the four magnetic steel placing channels 4 at intervals, so that the magnetic poles of the magnetic steels in the adjacent slots 5 are opposite, the magnetic steels are isolated from the metal cylinder 9 by the magnetic isolation push piece 10, then the motor shaft is inserted into the metal cylinder 9, then the motor shaft is fixed by the pressing block through the electric telescopic device, at this time, the power supply of the first power element 11 is started, so that one group of magnetic isolation push pieces 10 moves downward, at this time, the magnetic steels with the same magnetic pole are adsorbed to the outer wall of the metal cylinder 9, then the magnetic isolation push pieces 10 are moved upward again by starting the first power element 11, the magnetic steels adsorbed to the metal cylinder 9 are pushed upward by the magnetic isolation push pieces 10, at this time, only the magnetic steels with the same magnetic pole move upward, so that the magnetic explosion phenomenon is avoided. The magnetic steels with the same magnetic pole keep linear motion under the interaction force, and the magnetic steels with the other magnetic pole are installed subsequently. At this time, the magnetic isolation push pieces 10 shield the force between the remaining magnetic steels and the metal cylinder 9, so that the magnetic explosion is avoided. At this time, the second power element 12 is started to move the second group of magnetic isolation push pieces 10 downward, at this time, the two magnetic steels with the other magnetic pole are adsorbed to the outer wall of the metal cylinder 9, the second group of magnetic isolation push pieces 10 are moved upward again by starting the second power element 12 to move the magnetic steels adsorbed to the metal cylinder 9 upward, so that the magnetic steels are moved to the motor shaft, by the properties of the magnetic steels, the magnetic steels with opposite magnetic poles are inserted into the initial magnetic steels to be closely matched, so that the N-pole magnetic steels and the S-pole magnetic steels are closely sleeved on the outer wall of the motor shaft. Thus, the installation of the magnetic steels is completed. Then, the pressing of the voltage stabilizing mechanism is contacted, the motor shaft is taken out, and thus the motor shaft containing the magnetic steels is obtained. The motor shaft is inserted again, and the above-mentioned actions are repeated, so that the motor shaft containing the magnetic steels is obtained continuously. The device is simple and easy to operate, has high efficiency, and has high commercial value. The device uses the properties of various objects, and realizes the installation of the magnetic steels by ingenious combination, which has significant progress compared with the traditional magnetic steel installation and has creativity.

[0052] The technical scope of the present application is not limited to the above description, and those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical idea of the present application, and these modifications and changes should be within the protection scope of the present application.

Claims

1. A magnetic plug-in machine, characterized by, It comprises: A motor shaft stabilizing unit, which comprises a metal cylinder (9) and a stabilizing mechanism located right above the metal cylinder (9) for fixing the motor shaft placed in the metal cylinder (9); A magnetic steel placing unit, which comprises four magnetic steel placing channels (4), the top of each of the four magnetic steel placing channels (4) is provided with a slot (5) for placing magnetic steel, the four magnetic steel placing channels (4) are spaced apart for placing N-pole magnetic steel and S-pole magnetic steel, and the four magnetic steel placing channels (4) are uniformly distributed on the outer wall of the metal cylinder (9) for uniformly sleeving the four magnetic steels on the outer wall of the motor shaft; A magnetic steel mounting unit, which comprises two groups of magnetic separation push pieces (10), a first power member (11) and a second power member (12), the first power member (11) and the second power member (12) are respectively fixedly connected with the two groups of magnetic separation push pieces (10) for giving power to the two groups of magnetic separation push pieces (10), the two groups of magnetic separation push pieces (10) are located between the metal cylinder (9) and the four magnetic steel placing channels (4), and each group of magnetic separation push pieces (10) can push the magnetic steel with the same magnetic pole to the outer wall of the motor shaft; A magnetic separation disc (2) is arranged between the four magnetic steel placing channels (4), a circular hole (7) is formed in the middle of the magnetic separation disc (2), the metal cylinder (9) is arranged in the circular hole (7), the radius of the circular hole (7) is not less than the radius of the metal cylinder (9) plus the thickness of the magnetic steel, and not greater than the radius of the metal cylinder (9) plus the thickness of two magnetic steels; Each of the two groups of magnetic separation push pieces (10) is composed of two magnetic separation blocks (14) and a U-shaped block (13), one magnetic separation block (14) is fixedly connected to each end of the U-shaped block (13), and the power end of the first power member (11) and the second power member (12) is fixedly connected with the U-shaped block.

2. A magnetic inserting machine according to claim 1, characterized in that It also comprises a circuit unit, which comprises a controller arranged on the magnetic steel placing channel (4), and a plurality of button devices (8) arranged on the controller, the plurality of button devices (8) are electrically connected with the first power member (11), the second power member (12), the stabilizing mechanism and the controller for controlling the operation of each electric appliance.

3. The magnetic inserting machine of claim 1, wherein, The stabilizing mechanism comprises an electric telescopic device (3) and a pressing block, the pressing block is located right above the metal cylinder (9), and the pressing block is connected with the telescopic end of the electric telescopic device (3) for fixing the top of the motor shaft.

4. A magnetic inserting machine according to claim 3, characterized in that The first power member (11) and the second power member (12) are both electric telescopic devices.

5. The magnetic inserting machine of claim 1, wherein, The four magnetic steel placing channels (4) are mutually isolated from the metal cylinder (9), the isolation distance between the magnetic steel placing channel (4) and the metal cylinder (9) is not less than the thickness of the magnetic separation push piece (10) and not less than the thickness of one magnetic steel.

6. The magnetic inserting machine of claim 1, wherein, The magnetic steel placing channel (4) away from the top of the metal cylinder (9) is provided with a baffle (6).

7. A magnetic inserting machine according to claim 3, characterized in that It also includes a mounting frame (1) which is fixedly installed with the electric telescopic device (3) through a connecting plate, and four magnetic steel placing channels (4) are fixedly installed on the mounting frame (1).

8. The method of claim 1-7, wherein, The method comprises the following steps: Step one: place the motor shaft in the metal cylinder (9) and fix the motor shaft through the voltage stabilizing device; Step two: place the N-pole magnetic steel and S-pole magnetic steel in the four magnetic steel placing channels (4) evenly distributed around the metal cylinder (9) at intervals; Step three: set the magnetic separation push piece (10) between the four magnetic steel placing channels (4) and the metal cylinder (9) to isolate the N-pole magnetic steel and S-pole magnetic steel placed in the magnetic steel placing channels (4) from the metal cylinder (9) and to isolate the adjacent N-pole magnetic steel and S-pole magnetic steel from each other to avoid magnetic explosion; Step four: the controller controls the first power member (11) to drive the first set of magnetic separation push pieces (10) to move downward to make the two N-pole magnetic steels lose the magnetic separation of the magnetic separation push pieces (10) and be adsorbed on the periphery of the metal cylinder (9), and the controller controls the first power member (11) to move upward to push the first set of magnetic separation push pieces (10) upward, so that the two N-pole magnetic steels are sleeved on the outer wall of the motor shaft and are limited to each other, and at this time, the first set of magnetic separation push pieces (10) restore the initial magnetic separation state; Step five: the controller controls the second power member (12) to drive the second set of magnetic separation push pieces (10) to move downward to make the two S-pole magnetic steels lose the magnetic separation of the magnetic separation push pieces (10) and be adsorbed on the periphery of the metal cylinder (9), and the controller controls the second power member (12) to move upward to push the second set of magnetic separation push pieces (10) upward, so that the two N-pole magnetic steels are sleeved on the outer wall of the motor shaft, so as to combine the motor shaft outer wall with complete magnetic steel, and at this time, the second set of magnetic separation push pieces (10) restore the initial magnetic separation state; Step six: release the pressing state of the voltage stabilizing device, take out the motor shaft with complete magnetic steel, and thus obtain a complete product.

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