KR20220045270A - Magnetization device and method for rotor of drive motor - Google Patents

Abstract

A magnetization device for a rotor of a drive motor is disclosed. The magnetization device for a rotor of a drive motor according to an exemplary embodiment of the present invention, to magnetize a magnet inserted into a rotor, comprises: i) a frame; ii) an index table which is rotatably installed on the frame; iii) a plurality of yoke fixing jigs which are installed on the index table, to be spaced at set intervals along a rotational direction; and iv) a magnetizing yoke which is installed on each of the yoke fixing jigs, and is coupled to a rotor having a different model.

Description

A device and method for magnetizing a drive motor rotor

An embodiment of the present invention relates to a system for manufacturing a driving motor applied to an electric vehicle, and more particularly, to a magnetizing apparatus and method of a driving motor rotor for magnetizing unmagnetized magnets inserted into a rotor core. .

In general, a hybrid vehicle or an electric vehicle called an eco-friendly vehicle applies a technology for generating a driving force by a driving motor.

A driving motor used as a power source for an eco-friendly vehicle requires high efficiency and power density. To satisfy these requirements, most eco-friendly vehicles use a permanent magnet synchronous motor (PMSM) to which a permanent magnet is applied. Such a driving motor includes a stator, a rotor disposed with a predetermined gap therebetween, and magnets installed in the rotor.

On the other hand, the rotor in the drive motor is a magnetic material, and in the case of the pre-magnetization technique of inserting a magnetized magnet into the rotor, it takes a lot of time to insert due to the strong magnetism of the magnet, and the magnet may be damaged.

Therefore, in the prior art, a magnetization technique after inserting a non-magnetized magnet into the rotor and then magnetizing the magnet by forming a strong magnetic field outside the rotor is widely used.

The magnetizing device of the driving motor rotor performing the post-magnetization technique sets the rotor into which the unmagnetized magnet is inserted in the magnetizing yoke, and applies a magnetic field to the magnetizing yoke to magnetize the magnet of the rotor.

However, in the prior art, since the number of poles and the outer diameter size of the rotor are different for each type of drive motor, when adding or changing the drive motor model, it is necessary to design a magnetizing yoke that meets the conditions of the rotor. is difficult, and may cause an increase in equipment investment cost due to the provision of each magnetizing device according to the type of drive motor.

Matters described in this background section are prepared to enhance understanding of the background of the invention, and may include matters that are not already known to those of ordinary skill in the art to which this technology belongs.

Embodiments of the present invention are to provide a magnetizing apparatus and method of a driving motor rotor capable of magnetizing rotors having different types as a single facility of a simple configuration.

The magnetizing device of a driving motor rotor according to an embodiment of the present invention is for magnetizing a magnet inserted into the rotor, i) a frame, ii) an index table rotatably installed in the frame, iii) the above A plurality of yoke fixing jigs installed to be spaced apart from each other at set intervals along the rotational direction on the index table, and iv) a magnetizing yoke that is respectively installed on the yoke fixing jigs and is coupled to the rotor having a different model. can

In addition, the magnetizing device of the driving motor rotor according to an embodiment of the present invention is installed in the frame to be connected to the index table, and a driving unit for rotating the index table at a rotation angle corresponding to an interval between the yoke fixing jigs. may further include.

And, the magnetizing device of the driving motor rotor according to an embodiment of the present invention is for magnetizing a magnet inserted in the rotor, i) a frame, and ii) a disk shape that is rotatably installed in the frame through a driving unit of an index table, iii) a plurality of yoke fixing jigs installed to be spaced apart from each other at set intervals along the rotational direction on the index table, and iv) detachably installed in each of the yoke fixing jigs, each having a different model a magnetizing yoke coupled to the rotor; v) a rotor fixing member installed on the inner bottom of the yoke fixing jigs and fixing the rotor from the inside of the magnetizing yoke; vi) the index on the upper surface of the frame It is installed at a position corresponding to the edge end of the table, and may include a plurality of support units for supporting the edge portion of the index table.

In addition, in the magnetizing device of the driving motor rotor according to an embodiment of the present invention, the yoke fixing jig includes a jig body having an inner bottom and a ring-shaped outer wall, and the jig body to support the outer surface of the magnetizing yoke It may include a support end formed on the upper end of the.

In addition, in the magnetizing device of the driving motor rotor according to an embodiment of the present invention, the magnetizing yoke is provided in a cylindrical shape having an inner peripheral surface and an outer peripheral surface to magnetize the magnet by applying a magnetic field to the rotor. can

In addition, in the magnetizing device of the drive motor rotor according to an embodiment of the present invention, the rotor fixing member is installed vertically on the inner bottom of the yoke fixing jigs, and is fixed to be fitted into the hollow shaft of the rotor. It may include a pin.

In addition, in the magnetizing device of the drive motor rotor according to an embodiment of the present invention, the support unit is rotatably installed on the gear bracket through a gear bracket fixedly installed on the upper surface of the frame, and a bearing, It may include a pair of helical gears meshed with each other, and a pair of support rollers connected to the gear shaft of each helical gear and supporting upper and lower surfaces of the edge end of the index table.

In addition, in the magnetizing device of the driving motor rotor according to an embodiment of the present invention, the pair of support rollers are in contact with upper and lower surfaces of the edge end of the index table with the edge end of the index table interposed therebetween, can rotate in the opposite direction.

In addition, in the magnetizing device of the driving motor rotor according to an embodiment of the present invention, the support unit may further include a rubber pad provided on the roller surface of the support roller.

And, the magnetizing method of the driving motor rotor according to an embodiment of the present invention uses the magnetizing device of the driving motor rotor as described above to magnetize the magnet inserted in the rotor, (a) set on the upper side of the frame. A process of gripping different types of rotors through a rotor gripper at an initial position, and (b) coupling the rotor of a type set to a magnetizing yoke on an index table corresponding to the initial position through the rotor gripper (c) rotating the index table at a set angle, and coupling different types of rotors to other magnetizing yokes corresponding to the initial position through the rotor gripper; (d) the magnetizing The method may include applying a magnetic field to the rotors through the yokes to magnetize the magnets of the rotor.

In addition, in the method of magnetizing the drive motor rotor according to an embodiment of the present invention, in the steps (b) and (c), the rotor is supported through the bottom of the yoke fixing jig for fixing the magnetizing yoke. can do.

In addition, in the method of magnetizing the driving motor rotor according to an embodiment of the present invention, in the steps (b) and (c), the rotor through the rotor fixing member provided at the bottom of the yoke fixing jig can be fixed on the inside of the magnetizing yoke.

In addition, in the method of magnetizing the drive motor rotor according to an embodiment of the present invention, the fixing pin of the rotor fixing member is inserted into the hollow shaft of the rotor in the steps (b) and (c), , the rotor may be fixed to the yoke fixing jig from the inside of the magnetizing yoke.

In addition, in the method of magnetizing the drive motor rotor according to an embodiment of the present invention, in the step (c), the upper and lower surfaces of the edge end of the index table may be supported through the support roller of the support unit.

In addition, in the method of magnetizing the driving motor rotor according to an embodiment of the present invention, after the process (d), (e) removing the magnetizing yokes from the yoke fixing jigs, and attaching the inspection yokes to the yoke fixing jig It may further include a process of fixing to the.

In addition, in the method of magnetizing the drive motor rotor according to an embodiment of the present invention, after the process (e), (f) rotates the index table at a set angle, and the magnets are magnetized to the rotors. The method may further include coupling to the inspection yokes, and inspecting the magnetic flux amount of the rotors through the inspection yokes.

Embodiments of the present invention magnetize the rotors of various types as a single facility of the index type in which the magnetizing yokes corresponding to the rotors of different types are arranged on the index table, so that it is possible to flexibly respond to the production of various types of rotors. and can reduce equipment investment cost.

In addition, the effects obtainable or predicted by the embodiments of the present invention are to be disclosed directly or implicitly in the detailed description of the embodiments of the present invention. That is, various effects predicted according to an embodiment of the present invention will be disclosed in the detailed description to be described later.

Since these drawings are for reference in describing an exemplary embodiment of the present invention, the technical spirit of the present invention should not be construed as being limited to the accompanying drawings.
1 is a diagram illustrating an example of a rotor applied to a magnetizing device of a driving motor rotor according to an embodiment of the present invention.
2 is a combined perspective view illustrating a magnetizing device of a driving motor rotor according to an embodiment of the present invention.
3 is a partially exploded perspective view illustrating a magnetizing device of a rotor of a driving motor according to an embodiment of the present invention.
4 is a side configuration diagram illustrating a magnetizing device of a rotor of a driving motor according to an embodiment of the present invention.
5 is a plan view illustrating a magnetizing device of a rotor of a driving motor according to an embodiment of the present invention.
6 and 7 are views illustrating a support unit applied to a magnetizing device of a driving motor rotor according to an embodiment of the present invention.
8 to 10 are views for explaining a method of magnetizing a rotor of a driving motor according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily implement them. However, the present invention may be implemented in several different forms and is not limited to the embodiments described herein.

In order to clearly explain the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar components throughout the specification.

Since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the bar shown in the drawings, and the thickness is enlarged to clearly express various parts and regions.

In addition, in the following detailed description, the reason for dividing the names of components into first, second, etc. is to distinguish them in the same relationship, and the order is not necessarily limited in the following description.

Throughout the specification, when a part includes a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

In addition, terms such as ...unit, ...means, ...part, ...member described in the specification mean a unit of a comprehensive configuration that performs at least one function or operation.

1 is a diagram illustrating an example of a rotor applied to a magnetizing device of a driving motor rotor according to an embodiment of the present invention.

Referring to FIG. 1 , an embodiment of the present invention may be applied to a process of manufacturing a rotor of a driving motor for an electric vehicle that obtains driving force with electric energy.

The driving motor is, for example, a permanent magnet synchronous motor (PMSM) to which a gray earth permanent magnet is applied. It includes an electron (1) and a plurality of magnets (3) inserted into the rotor (1).

In the above, the rotor 1 includes a rotor core 2 in which a plurality of electrical steel sheets are stacked. The rotor core 2 is rotatably supported on the inside of a stator (not shown) through a bearing (not shown) and a hollow shaft 4 . In addition, magnet insertion holes 5 into which magnets 3 are inserted are formed in the rotor core 2 .

As described above, the embodiment of the present invention has been described as being applied to the rotor of the electric vehicle driving motor, but it should not be understood that the protection scope of the present invention is necessarily limited thereto, and if the rotor of the driving motor of various types and uses is The technical spirit of the present invention can be applied.

On the other hand, the magnetizing device 100 of the driving motor rotor according to the embodiment of the present invention is applied to the rotor assembly process of the driving motor, in a state in which non-magnetized magnets 3 are inserted into the rotor core 2 . , can be applied to the magnetization process of the rotor of the driving motor to magnetize by applying an electric field to the magnets (3).

Hereinafter, in the reference position (based on the drawing) of the device 100, the upper part is defined as the upper part, the upper part, the upper surface, and the upper part, and the lower part part is the lower part, the lower part, the lower surface and the lower part.

In addition, an end (one/one end or the other/one end) in the following may be defined as either end, and is defined as a certain part (one/one end or the other/one end) including the end. it might be

The magnetizing apparatus 100 of the driving motor rotor according to an embodiment of the present invention has a structure capable of magnetizing the rotors 1 having different models as a single facility of a simple configuration.

FIG. 2 is a combined perspective view showing a magnetizing device of a driving motor rotor according to an embodiment of the present invention, and FIG. 3 is a partially exploded perspective view showing a magnetizing device of a driving motor rotor according to an embodiment of the present invention, FIG. 4 is a side configuration diagram illustrating a magnetizing device of a driving motor rotor according to an embodiment of the present invention, and FIG. 5 is a plan configuration diagram illustrating a magnetizing device of a driving motor rotor according to an embodiment of the present invention.

2 to 5 together with FIG. 1 , the magnetizing device 100 of the driving motor rotor according to an embodiment of the present invention is basically a frame 10 , an index table 20 , and a driving unit 30 . , the yoke fixing jigs 40, the magnetizing yokes 50, the rotor fixing member 60, and is configured to include the support unit 70, which will be described for each configuration as follows.

The frame 10 in the above is for installing various components to be described further below, has an upper surface 11 and a lower surface 13, and is installed on the floor of the process workshop. The frame 10 may be composed of one frame or two or more frames connected to each other.

In addition, the frame 10 may include various accessory elements such as brackets, bars, rods, plates, blocks, ribs, and collars for supporting various components.

However, since the above-described accessory elements are for installing each component to be further described below on the frame 10, in the embodiment of the present invention, the aforementioned accessory elements are collectively referred to as the frame 10, except in exceptional cases. do.

In an embodiment of the present invention, the index table 20 is rotatably installed on the upper surface 11 of the frame 10 at a set interval and rotatably on the upper surface thereof.

For example, the index table 20 is provided in the shape of a disk having an upper surface and a lower surface.

In an embodiment of the present invention, the driving unit 30 is for rotating the index table 20 at a rotation angle corresponding to a set interval of the yoke fixing jigs 40 to be described further later. The driving unit 30 is installed on the lower surface 13 of the frame 10 to be connected to the index table 20 .

The driving unit 30 includes a servo motor 31 and a rotation shaft 33 . The servo motor 31 is fixedly installed on the lower surface 13 of the frame 10 . The servo motor 31 is provided as a servo motor of a known technology capable of servo control of rotation speed, rotation direction, and rotation angle.

The rotation shaft 33 is connected to the drive shaft of the servo motor 31 through the reducer 35 , is vertically disposed on the lower surface 13 of the frame 10 , and is the upper portion of the frame 10 . It passes through the surface 11 and is coupled to the central portion of the index table 20 . Here, the rotation shaft 33 is rotatably supported on the upper surface 11 of the frame 10 through a bearing 37 .

In an embodiment of the present invention, the yoke fixing jigs 40 are for fixing the magnetizing yokes 50 to be described further later, and are installed on the upper surface of the index table 20 to be spaced apart from each other at set intervals along the rotational direction. That is, the yoke fixing jig 40 is installed on the upper surface of the index table 20 to be spaced apart from each other at set intervals along the edge direction of the index table 20 .

These yoke fixing jigs 40 are fixedly installed on the upper surface of the index table 20 , and include a jig body 41 and a support end 43 . The jig body 41 has an inner bottom and a ring-shaped outer wall, and is fixed to the upper surface of the index table 20 .

And, the support end 43 is for supporting the outer surface of the magnetizing yoke 50, which will be described further later, is formed on the upper end of the jig body (41). For example, the support end 43 is formed to be spaced apart from the upper end of the jig body 41 in the circumferential direction.

In an embodiment of the present invention, the magnetizing yokes 50 apply an electric field to the rotor 1 having different types to magnetize (magnetize) the magnets 3 inserted in the rotor 1 will be.

Here, the different models of the rotors 1 mean that the size/shape of the rotor core 2, the number of poles, and the magnetic flux/size/arrangement/shape of the magnets 3 are dependent on the specifications of the driving motor. It can be defined as being different.

The magnetizing yokes 50 are fixed to the jig body 41 of the yoke fixing jigs 40 , and are selectively detachably provided with respect to the jig body 41 . The magnetizing yokes 50 are supported on the bottom and outer walls of the yoke fixing jigs 40, and are provided, for example, in a cylindrical shape having an inner circumferential surface and an outer circumferential surface.

These magnetizing yokes 50 correspond to the magnets 3 of the rotor 1 supported on the jig body 41 on the inside thereof and a coil capable of applying an electric field to the magnets 3 (shown in the drawing) not) have a magnetizing yoke structure of the known art in which they are arranged at set intervals or in a coiling shape.

Here, the magnetizing yokes 50 are inserted into the jig body 41 and supported on the bottom and inner walls of the jig body 41 , and the outer peripheral surface of the magnetizing yokes 50 is the support end of the jig body 41 . (43) is supported through

In an embodiment of the present invention, the rotor fixing member 60 is to fix the rotor 1 coupled to the magnetizing yokes 50 to the yoke fixing jigs 40 from the inside of the magnetizing yokes 50 . it is for

The rotor fixing member 60 is installed on the bottom of the jig body 41 of the yoke fixing jigs 40 . For example, the rotor fixing member 60 may include a fixing pin 61 installed on the inner bottom of the jig body 41 in the vertical direction.

The fixing pin 61 is vertically inserted into the hollow shaft 4 of the rotor 1 when the rotor 1 is inserted into the magnetizing yoke 50, and the rotor 1 is It may be fixed to the yoke fixing jig 40 from the inside of the magnetized yokes 50 .

As an alternative, the fixing pin 61 is connected to a separate driving means (eg, an operating cylinder) and is installed so as to be reciprocally movable in the vertical direction on the inner bottom of the jig body 41 by the driving of the driving means. may be

In an embodiment of the present invention, the support units 70 droop from the upper side of the frame 10 of the index table 20 to the lower side when the index table 20 rotates, up and down vibration according to the driving of the driving unit 30 . is to prevent Here, the vibration and deflection of the index table 20 as described above may act as a factor impairing the quality of the magnetization of the rotor 1 by the magnetizing yoke 50 .

The support units 70 are positioned at a position corresponding to the edge end of the index table 20 on the upper surface 11 of the frame 10 so as to support the edge end of the index table 20. It is installed to be spaced apart at a set interval along the edge direction of the

As shown in FIGS. 6 and 7 , these support units 70 include a gear bracket 71 , a pair of helical gears 73 , and a pair of support rollers 75 , respectively.

The gear bracket 71 is fixedly installed on the upper surface 11 of the frame 10 . The pair of helical gears 73 are rotatably installed in the gear bracket 71 through the bearing 74 while being meshed with each other in the opposite direction. Here, the bearings 74 are respectively installed on one side and the other side of the gear bracket 71 , and support the gear shaft 76 of the helical gears 73 .

In addition, the pair of support rollers 75 support the upper and lower surfaces of the edge end of the index table 20 , and are connected to the gear shaft 76 of each helical gear 73 , and the edge of the index table 20 . The ends are rotated in opposite directions while being in contact with the upper and lower surfaces of the ends.

Furthermore, the support units 70 as described above further include a rubber pad 77 provided on the roller surface of the support roller 75 . The rubber pad 77 serves to cushion the vibration transmitted to the support roller 75 through the edge end of the index table 20 .

Hereinafter, the operation and operation of the driving motor rotor magnetizing device 100 according to the embodiment of the present invention configured as described above, and the magnetizing method of the driving motor rotor using the magnetizing device 100 of the driving motor rotor, will be preceded. It will be described in detail with reference to the disclosed drawings and the accompanying drawings.

8 to 10 are views for explaining a method of magnetizing a rotor of a driving motor according to an embodiment of the present invention.

Referring to FIG. 8 , first, in the embodiment of the present invention, the rotor 1 is gripped through the rotor gripper 80 at a set initial position on the upper side of the frame 10 . Non-magnetized magnets 3 are inserted into the magnet insertion holes 5 of the rotor core 2 in the rotor 1 .

Here, the rotor gripper 80 is a known art gripping device having a gripping finger gripping the upper end of the rotor 1 , and operates the gripping finger by pneumatic pressure and operates the upper end of the rotor 1 . can be gripped, and the rotor 1 can be moved to a set position. At this time, the rotor gripper 80 grips the rotor 1 of the model set at the initial position on the upper side of the frame 10 .

Then, in the embodiment of the present invention, as shown in FIG. 9 , the rotor 1 of the type set in the index table 20 corresponding to the initial position and the magnetization yoke 50 is moved to the rotor gripper 80 . combine through

In this process, in the embodiment of the present invention, the rotor 1 is moved from the upper side to the lower side through the rotor gripper 80 and coupled to the magnetizing yoke 50, the magnetizing yoke 50 is the yoke. The fixing jig 40 is supported on the bottom and the inner wall of the jig body 41 , and the supporting ends 43 of the jig body 41 support the outer peripheral surface of the magnetizing yoke 50 .

In addition, when the rotor 1 is coupled to the magnetizing yoke 50 through the rotor gripper 80 as described above, in the embodiment of the present invention, the bottom of the yoke fixing jig 40 is removed. The rotor 1 is supported through, and the rotor 1 is fixed to the yoke fixing jig 40 from the inside of the magnetizing yoke 50 through the rotor fixing member 60 provided at the bottom.

In this case, in the embodiment of the present invention, the fixing pin 61 of the rotor fixing member 60 is inserted into the hollow shaft 4 of the rotor 1 , and the rotor 1 is attached to the magnetizing yoke 50 . It can be fixed to the yoke fixing jig 40 from the inside.

Next, in a state in which the rotor 1 of the model set as described above is coupled to any one of the magnetizing yokes 50 corresponding to the initial positions, the index table 20 is driven by the driving unit 30 in the embodiment of the present invention. ) is rotated at a set angle, and the different types of rotors 1 are respectively coupled to the different magnetizing yokes 50 corresponding to the initial positions through the rotor gripper 80 . At this time, the rotor (1) may be coupled to the set magnetizing yoke (50) according to the model of the rotor (1) through the process as described above.

Here, in the process of rotating the index table 20 through the driving unit 30 , in an embodiment of the present invention, the upper and lower surfaces of the edge end of the index table 20 are supported by the support rollers 75 of the support units 70 . supported through

Specifically, in the embodiment of the present invention, the edge end of the index table 20 is placed between the pair of support rollers 75 and the upper and lower surfaces of the end are in contact with the support roller 75 while rotating the support roller 75 . can do it

Accordingly, in the embodiment of the present invention, the helical gears 73 are engaged and rotated through the support roller 75 , and the rubber pad 77 provided on the roller surface of the support roller 75 is the index table 20 . While in close contact with the upper and lower surfaces of the edge end, it is possible to prevent vertical vibration caused by the driving of the driving unit 30 and drooping from the upper side of the frame 10 of the index table 20 to the lower side.

In a state in which the different types of rotors 1 are coupled to the magnetizing yoke 50 on the index table 20 as described above, in the embodiment of the present invention, when power is supplied to the magnetizing yokes 50, the rotation By applying a magnetic field to the electrons (1), it is possible to magnetize the magnets (3) inserted into the rotor (1) as a set amount of magnetic flux.

On the other hand, the embodiment of the present invention goes through the process as described above, and when the magnetizing process for the different types of rotors 1 is completed, it is rotated from the magnetizing yokes 50 through the rotor gripper 80 . Remove the electrons (1).

Then, in the embodiment of the present invention, as shown in FIG. 10 , the magnetizing yokes 50 are removed from the yoke fixing jigs 40 , and the inspection yokes 90 are mounted (fixed) to the yoke fixing jigs 40 . )do.

Here, the inspection yoke 90 has a shape and a coil arrangement structure of the magnetizing yoke 50 corresponding to the rotors 1 of different types, and can detect the magnetic flux of the rotor 1 .

Then, in an embodiment of the present invention, the rotors 1 of different types for which the magnetization process is completed as described above at the set initial position on the upper side of the frame 10 are transferred to the inspection yoke through the rotor gripper 80 (refer to FIG. 6 ). (90), the index table 20 is rotated at a set angle by the driving of the driving unit 90, and the rotors 1 are coupled to the inspection yokes 90.

Then, in the embodiment of the present invention, the magnetic flux amount of the rotors 1 is detected through the inspection yokes 50 , and the magnetic flux amount for each rotor 1 is displayed on the display or the magnetic flux amount It is possible to determine whether the quality of the rotor (1) according to the defective.

According to the magnetizing apparatus 100 and method of the driving motor rotor according to the embodiment of the present invention as described so far, the non-magnetized magnets 3 are inserted rotors 1 of different types into an index table ( 20) is coupled to the magnetizing yokes 50 corresponding to the different types of the rotor 1 while rotating, and the magnets 3 of the rotor 1 can be magnetized.

Therefore, in the embodiment of the present invention, as a single device of the index type in which the magnetizing yokes 50 corresponding to the rotors 1 of different types are arranged on the index table 20, the rotors 1 of various types are can be magnetized.

Accordingly, in the embodiment of the present invention, when adding a type of rotor, it is only necessary to add the magnetizing yoke 50 without additional installation of a new facility, thereby reducing facility investment. That is, in the embodiment of the present invention, it is possible to flexibly respond to the production of multiple types of rotors, and it is possible to reduce the equipment investment cost.

Furthermore, in the embodiment of the present invention, when the index table 20 is rotated, it is possible to prevent vibrations vulnerable to the magnetization rate of the rotor through the support units 70 , so that the magnetization quality of the rotor can be secured.

Furthermore, in an embodiment of the present invention, since the magnetic flux amount of the magnetized rotors 1 can be checked by mounting the inspection yokes 90 to the yoke fixing jigs 40 on the index table 20, a single facility As a result, the cycle time can be shortened and productivity can be improved by performing the magnetization process and the inspection process at the same time.

Although the embodiments of the present invention have been described above, the technical spirit of the present invention is not limited to the embodiments presented in this specification, and those skilled in the art who understand the technical spirit of the present invention can configure, within the scope of the same technical spirit. Other embodiments may be easily proposed by adding, changing, deleting, or adding elements, but this will also fall within the scope of the present invention.

1: rotor 2: rotor core
3: Magnet 4: Hollow Shaft
5: Magnet insertion hole 10: Frame
11: upper side 13: lower side
20: index table 30: drive unit
31: servo motor 33: axis of rotation
35: reducer 37, 74: bearing
40: yoke fixing jig 41: jig body
43: support stage 50: magnetized yoke
60: rotor fixing member 61: fixing pin
70: support unit 71: gear bracket
73: helical gear 75: support roller
76: gear shaft 77: rubber pad
80: rotor gripper 90: inspection yoke
100: magnetizing device

Claims (15)

As a magnetizing device of a drive motor rotor that magnetizes a magnet inserted into the rotor,
frame;
an index table rotatably installed on the frame;
a plurality of yoke fixing jigs installed to be spaced apart from each other at set intervals along a rotational direction on the index table; and
a magnetizing yoke installed in each of the yoke fixing jigs and coupled to the rotor having a different model;
A magnetizing device of the driving motor rotor comprising a. According to claim 1,
A driving unit that is installed in the frame to be connected to the index table and rotates the index table at a rotation angle corresponding to an interval between the yoke fixing jigs
A magnetizing device of the driving motor rotor further comprising a. As a magnetizing device of a drive motor rotor that magnetizes a magnet inserted into the rotor,
frame;
a disk-shaped index table rotatably installed on the frame through a driving unit;
a plurality of yoke fixing jigs installed to be spaced apart from each other at set intervals along a rotational direction on the index table;
a magnetizing yoke that is detachably installed on the yoke fixing jigs, respectively, and coupled to the rotor having different models;
a rotor fixing member installed on the inner bottom of the yoke fixing jigs and fixing the rotor from the inside of the magnetizing yoke; and
a plurality of support units installed on the upper surface of the frame at positions corresponding to the edge end of the index table and supporting the edge of the index table;
A magnetizing device of the driving motor rotor comprising a. 4. The method of claim 3,
The yoke fixing jig,
A jig body having an inner bottom and a ring-shaped outer wall,
A support end formed on the upper end of the jig body to support the outer surface of the magnetized yoke
A magnetizing device of the driving motor rotor comprising a. 4. The method of claim 3,
The magnetized yoke,
A magnetizing device of a driving motor rotor provided in a cylindrical shape having an inner circumferential surface and an outer circumferential surface to magnetize the magnet by applying a magnetic field to the rotor. 4. The method of claim 3,
The rotor fixing member,
A fixing pin installed in the vertical direction on the inner bottom of the yoke fixing jigs and fitted to the hollow shaft of the rotor
A magnetizing device of the driving motor rotor comprising a. 4. The method of claim 3,
The support unit is
a gear bracket fixedly installed on the upper surface of the frame;
A pair of helical gears rotatably installed on the gear bracket through a bearing and meshed with each other;
A pair of support rollers connected to the gear shaft of each helical gear and supporting the upper and lower surfaces of the edge end of the index table
A magnetizing device of the driving motor rotor comprising a. 8. The method of claim 7,
The pair of support rollers,
A magnetizing device for a driving motor rotor that is in contact with upper and lower surfaces of the edge end of the index table with the edge end of the index table interposed therebetween and rotates in opposite directions. 8. The method of claim 7,
The support unit is
The magnetizing device of the driving motor rotor further comprising a rubber pad provided on the roller surface of the support roller. As a magnetizing method of a driving motor rotor using the driving motor rotor magnetizing device of claim 1 to magnetize a magnet inserted into the rotor,
(a) the process of gripping the rotors of different types through the rotor gripper at the set initial position on the upper side of the frame;
(b) coupling the rotor of the type set to the magnetizing yoke on the index table corresponding to the initial position through the rotor gripper;
(c) rotating the index table at a set angle, and coupling different types of rotors to different magnetizing yokes corresponding to the initial position through the rotor gripper; and
(d) applying a magnetic field to the rotors through the magnetizing yokes to magnetize the magnets of the rotor;
A method of magnetizing the rotor of the driving motor comprising a. 11. The method of claim 10,
In the process (b) and the process (c),
Supporting the rotor through the bottom of the yoke fixing jig for fixing the magnetized yoke,
A method of magnetizing a driving motor rotor for fixing the rotor from the inside of the magnetizing yoke through a rotor fixing member provided on the bottom of the yoke fixing jig. 12. The method of claim 11,
In the process (b) and the process (c),
A method of magnetizing a driving motor rotor by inserting a fixing pin of the rotor fixing member into the hollow shaft of the rotor, and fixing the rotor to the yoke fixing jig from the inside of the magnetizing yoke. 11. The method of claim 10,
In the process (c),
A magnetizing method of a driving motor rotor supporting the upper and lower surfaces of the edge end of the index table through the support rollers of the support unit. 11. The method of claim 10,
After the process (d) above,
(e) removing the magnetizing yokes from the yoke fixing jigs, and fixing the inspection yokes to the yoke fixing jigs
Magnetization method of the driving motor rotor further comprising a. 14. The method of claim 13,
After the process (e) above,
(f) rotating the index table at a set angle, coupling the rotors magnetized with the magnet to the inspection yokes through the rotor gripper, and inspecting the magnetic flux amount of the rotors through the inspection yokes procedure
Magnetization method of the driving motor rotor further comprising a.

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