CN111669005A

CN111669005A - Motor manufacturing device

Info

Publication number: CN111669005A
Application number: CN201910163803.1A
Authority: CN
Inventors: 王威
Original assignee: Nidec Machinery Zhejiang Corp
Current assignee: Nideco Intelligent Equipment Zhejiang Co ltd
Priority date: 2019-03-05
Filing date: 2019-03-05
Publication date: 2020-09-15
Anticipated expiration: 2039-03-05
Also published as: CN111669005B

Abstract

A motor manufacturing device is helpful to automatically remove insulating substances attached to the outer peripheral surface of a motor iron core, and improves the manufacturing efficiency and the quality stability of a motor. The motor manufacturing apparatus of the present invention includes: a support unit that supports an iron core of the motor; and a powder removing unit having a driving portion that rotates the iron core supported by the supporting unit around an axis of the iron core, and a blade portion having a blade for contacting an outer circumferential surface of the iron core rotated by the driving portion to remove powder applied to the outer circumferential surface of the iron core.

Description

Motor manufacturing device

Technical Field

The present invention relates to a motor manufacturing apparatus.

Background

In the field of automated manufacturing and the like, a motor is often used as a driving source because of its advantages such as simple structure, convenience in control, and high efficiency.

In general, a motor includes a stator having a cylindrical stator core (see, for example, fig. 5) and coils wound around pole teeth of the stator core, and a rotor rotatable with respect to the stator and having a rotating shaft and a magnet provided on the rotating shaft.

In addition, to ensure the normal operation of the motor, the stator core needs to be insulated.

Conventionally, in order to perform the insulation treatment, it is common to dip the entire stator core in an insulating varnish and then perform a drying treatment.

However, depending on the case, it may be necessary to ensure that the outer peripheral surface of the stator core is free from the insulating varnish. In this case, since the insulating varnish on the outer circumferential surface of the stator core is usually removed manually and then dried, not only is the motor manufacturing efficiency low, but also the quality of the manufactured motor is unstable.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a motor manufacturing apparatus that facilitates automatic removal of an insulating material attached to an outer peripheral surface of a motor core, thereby improving manufacturing efficiency and quality stability of a motor.

In order to achieve the above object, the present invention provides a motor manufacturing apparatus including: a support unit that supports an iron core of the motor; and a powder removing unit having a driving portion that rotates the iron core supported by the supporting unit around an axis of the iron core, and a blade portion having a blade for contacting an outer circumferential surface of the iron core rotated by the driving portion to remove powder applied to the outer circumferential surface of the iron core.

According to the motor manufacturing apparatus of the present invention, in a state where the core of the motor to which the insulating powder or the like is applied is supported by the support unit, the driving unit rotates the core around the axis thereof and brings the outer peripheral surface of the core into contact with the wiper blade of the wiper blade portion, whereby the insulating powder or the like adhering to the outer peripheral surface of the motor core can be automatically removed, which contributes to improvement in manufacturing efficiency and stability of quality of the motor as compared with manual removal of the insulating powder or the like on the outer peripheral surface of the core.

In the motor manufacturing apparatus according to the present invention, it is preferable that the blade portion has a blade holder, the blade is provided in the blade holder so that a protruding length of the blade is adjustable, and the blade is made of spring steel and has flexibility.

According to the motor manufacturing device, the scraping blade is arranged on the scraping blade seat in a mode of adjusting the protruding length, so that the motor manufacturing device can conveniently deal with iron cores with different sizes, and the contact force between the scraping blade and the iron cores is easy to adjust; moreover, the scraping blade is made of spring steel and has flexibility, so that the impact force generated when the scraping blade is contacted with the motor iron core is reduced, and the damage of the motor and the scraping blade iron core is avoided.

In the motor manufacturing apparatus according to the present invention, it is preferable that the blade is provided in a plurality of pieces in a direction perpendicular to an axis of the core supported by the support unit.

According to the motor manufacturing device of the present invention, the capability and efficiency of the blade portion for removing the insulating powder on the outer peripheral surface of the core can be improved, thereby further improving the manufacturing efficiency of the motor.

In the motor manufacturing apparatus having the above configuration, the following configuration may be adopted: the part of at least one piece of the scraping blade, which is contacted with the outer peripheral surface of the iron core, is vertical to the outer peripheral surface, and/or the part of at least one piece of the scraping blade, which is contacted with the outer peripheral surface of the iron core, is tangent to the outer peripheral surface.

In the motor manufacturing apparatus according to the present invention, it is preferable that the blade portion is provided in plurality in a direction perpendicular to an axis of the core supported by the support unit.

According to the motor manufacturing apparatus of the present invention, even if the first blade portion in contact with the outer peripheral surface of the core fails to completely remove the insulating powder or the like on the outer peripheral surface of the core, the subsequent blade portions can continue to remove the insulating powder or the like, and therefore, the insulating powder or the like on the outer peripheral surface of the core can be easily and reliably removed.

Further, in the motor manufacturing apparatus of the present invention, it is preferable that the motor manufacturing apparatus further includes a conveying unit that moves at least a part of the support unit in a moving direction perpendicular to an axis of the iron core supported by the support unit, thereby moving the iron core in the moving direction.

According to the motor manufacturing apparatus having the above configuration, the iron core supported by the shaft portion is rotated around the axis of the iron core by the driving portion while the iron core supported by the shaft portion is moved by the conveying unit in the moving direction perpendicular to the axis of the iron core, so that the efficiency when the iron core is subjected to the batch processing can be improved.

In the motor manufacturing apparatus having the above configuration, the following configuration may be adopted: the support unit has: a seat portion; and a shaft portion that is detachably supported by the seat portion so as to be rotatable, supports the core so that an axis of the core coincides with an axis of the shaft portion, and is driven by the transport unit to move in the moving direction, the drive portion including: a drive motor; and a transmission belt that is driven to rotate by the drive motor and that rotates the shaft portion by being in frictional contact with an outer peripheral surface of the shaft portion.

According to the motor manufacturing apparatus having the above configuration, since the core supported by the support unit can be rotated about the axis of the core while being moved in the moving direction perpendicular to the axis of the core with a simple configuration, it is possible to contribute to a reduction in the cost of the motor manufacturing apparatus.

In the motor manufacturing apparatus having the above configuration, the following configuration may be further adopted: the seat portion is a pair of guide rails extending in the moving direction, both ends of the shaft portion are supported by the pair of guide rails, and an intermediate portion of the shaft portion supports the iron core, and the transport unit includes: a conveying motor; and the pushing part is driven by the conveying motor to move along the moving direction and drives the shaft part to move along the moving direction by being abutted against two ends of the shaft part.

According to the motor manufacturing apparatus having the above configuration, the core supported by the support unit can be stably moved in the moving direction perpendicular to the axis of the core with a simple configuration.

In the motor manufacturing apparatus having the above configuration, the following configuration may be further adopted: the blade is provided with a plurality of blades in the moving direction, and in the blade portion, from the upstream side to the downstream side in the moving direction, the angle of the portion of the plurality of blades in contact with the outer peripheral surface of the core with respect to the tangent plane of the outer peripheral surface gradually changes from 90 degrees to 0 degrees.

According to the motor manufacturing apparatus having the above configuration, the insulating powder and the like on the outer peripheral surface of the core can be removed more reliably.

Further, in the motor manufacturing apparatus of the present invention, it is preferable that the powder coating unit coat the entire iron core with powder by electrostatic powder spraying; and a conveying unit that conveys the iron core coated with the powder by the powder coating unit to the powder removing unit.

According to the motor manufacturing device with the structure, the powder is easily and uniformly coated on the whole iron core, and the quality of the manufactured motor is kept stable.

In the motor manufacturing apparatus having the above configuration, the following configuration may be adopted: the iron core processing device further comprises a heating unit which heats the iron core which is conveyed by the conveying unit and is subjected to the powder removing treatment by the powder removing unit so as to dry the powder in the iron core and adhere the powder to the iron core.

In the motor manufacturing apparatus having the above configuration, the following configuration may be further adopted: the heating unit heats by electromagnetic induction.

(effect of the invention)

According to the present invention, in a state where the iron core coated with the insulating powder or the like of the motor is supported by the support unit, the driving unit rotates the iron core around the axis thereof to bring the outer peripheral surface of the iron core into contact with the wiper of the wiper portion, thereby automatically removing the insulating powder or the like attached to the outer peripheral surface of the iron core of the motor, which contributes to improvement in the manufacturing efficiency and stability of the quality of the motor as compared with manual removal of the insulating powder or the like from the outer peripheral surface of the iron core.

Drawings

Fig. 1 is a partial plan view schematically showing a motor manufacturing apparatus according to an embodiment of the present invention, in which a shaft portion included in a support unit is not shown.

Fig. 2 is a partial side view schematically showing a powder removing unit in the motor manufacturing apparatus according to the embodiment of the present invention.

Fig. 3 is a partial perspective view schematically showing a motor manufacturing apparatus according to an embodiment of the present invention.

Fig. 4 is a perspective view schematically showing a shaft portion included in a support unit in the motor manufacturing apparatus according to the embodiment of the present invention.

Fig. 5 is a perspective view showing an example of a conventional stator core.

(symbol description)

10 support unit

11 seat part

12 shaft part

121 axis

122 position limiter

20 gumming unit

21 drive part

211 drive motor

2133 third belt wheel

2134 fourth pulley

2141 first shaft

2142 second shaft

2143 third shaft

2152 second belt

22 wiper blade part

221 doctor blade

222 doctor blade seat

23 recovery part

30 conveying unit

31 pushing part

Detailed Description

Next, a motor manufacturing apparatus according to an embodiment of the present invention will be described with reference to fig. 1 to 4, where fig. 1 is a partial plan view schematically showing the motor manufacturing apparatus according to the embodiment of the present invention, in which a shaft portion included in a support unit is not shown, fig. 2 is a partial side view schematically showing a powder removing unit in the motor manufacturing apparatus according to the embodiment of the present invention, fig. 3 is a partial perspective view schematically showing the motor manufacturing apparatus according to the embodiment of the present invention, and fig. 4 is a perspective view schematically showing a shaft portion included in a support unit in the motor manufacturing apparatus according to the embodiment of the present invention.

Here, for convenience of explanation, three directions perpendicular to each other are set as an X direction, a Y direction, and a Z direction, and one side in the X direction is set as X1, the other side in the X direction is set as X2, one side in the Y direction is set as Y1, the other side in the Y direction is set as Y2, one side in the Z direction is set as Z1, and the other side in the Z direction is set as Z2.

As shown in fig. 1 and 2, the motor manufacturing apparatus includes: a support unit 10, the support unit 10 supporting an iron core (not shown) of the motor; and a powder removing unit 20, the powder removing unit 20 having a driving portion 21 and a blade portion 22, the driving portion 21 rotating the iron core supported by the support unit 10 about an axis of the iron core, the blade portion 22 having a blade 221, the blade 221 being for contacting an outer circumferential surface of the iron core rotated by the driving portion 21 to remove powder (e.g., insulating powder) applied to the outer circumferential surface of the iron core.

As shown in fig. 3, the motor manufacturing apparatus further includes a transport unit 30, and the transport unit 30 moves at least a part of the support unit 10 in a moving direction a (parallel to the X direction) perpendicular to an axis (parallel to the Y direction) of the iron core supported by the support unit 10, thereby moving the iron core in the moving direction a (specifically, moving from the X2 direction side toward the X1 direction side).

As shown in fig. 1, the motor manufacturing apparatus further includes a container-shaped collection unit 23 having an opening on the Z1 direction side, and the collection unit 23 is provided on the Z2 direction side of the powder removing unit 20 so as to receive the powder scraped off from the outer peripheral surface of the core by the blade 221.

Here, as shown in fig. 3 and 4, the support unit 10 includes: a seat 11; and a shaft portion 12, the shaft portion 12 being detachably supported by the seat portion 10 in a rotatable manner, and supporting the core so that an axis of the core coincides with an axis of the shaft portion 12. Specifically, as shown in fig. 3 and 4, the seat 11 is a pair of guide rails (only the guide rail on the Y2 side is shown in fig. 3, and the guide rail on the Y1 side is not shown) extending in the X direction (i.e., the moving direction a) and opposing in the Y direction, and both ends of the shaft 12 are supported by the pair of guide rails, and the middle portion of the shaft 12 supports the iron core. More specifically, as shown in fig. 3 and 4, the shaft portion 12 includes a shaft 121 and a pair of stoppers 122, the stoppers 122 are cylindrical, each having a tapered portion at one end thereof, and are slidably fitted to the shaft 121 and detachable from the shaft 121, and the pair of stoppers 122 are brought into contact with the core from both axial sides in a state where the shaft 121 is inserted through a through hole in the center of the core (for example, a center hole of the stator core shown in fig. 5), so that the tapered portions of the stoppers 122 are fitted into the through hole in the center of the core, whereby the core can be stably held on the shaft 121.

Further, as shown in fig. 1 and 2, in the dust removing unit 20, a plurality of the blade portions 22 are provided in the moving direction a perpendicular to the axis of the iron core supported by the support unit 10, and the plurality of blade portions 22 are supported by, for example, the same support. The blade portion 22 has a blade holder 222, and the blade 221 is provided in the blade holder 222 so as to be adjustable in protruding length and can be attached to and detached from the blade holder 222. Further, in each blade portion 22, a plurality of blades 221 (two blades in the example shown in fig. 2, but not limited thereto) are provided in the moving direction a. The material and the installation form of the blades 221 are not particularly limited, but the blades 221 are preferably made of spring steel and have flexibility, and in each blade portion 22, the angle of the portion of the plurality of blades 221 that contacts the outer peripheral surface of the core with respect to the tangent plane of the outer peripheral surface is preferably gradually changed from 90 degrees to 0 degrees from the upstream side (the X2 direction side) to the downstream side (the X1 direction side) in the moving direction a.

As shown in fig. 1 and 2, the driving unit 21 includes: a drive motor 211; and a belt which is rotated by the driving motor 211 and rotates the shaft portion 12 by being in frictional contact with the outer peripheral surface of the shaft portion 12 of the support unit 10. Specifically, as shown in fig. 1 and 2, the driving unit 21 includes: a drive motor 211, the drive motor 211 having an output shaft extending in the Y direction; a first pulley fixed to an output shaft of the driving motor 211; a second pulley located on the X2 direction side of the first pulley; the first transmission belt is erected on the first belt wheel and the second belt wheel; two third pulleys 2133, the two third pulleys 2133 and the second pulley being attached to a first shaft 2141 extending in the Y direction; two fourth pulleys 2134, the two fourth pulleys 2134 being attached to the second shaft 2142 so as to be located on both sides of the blade portion 22 in the Y direction, the second shaft 2142 being parallel to the first shaft 2141 and being closer to the X2 direction side than the first shaft 2141; two fifth pulleys 2135, the two fifth pulleys 2135 being attached to a third shaft 2143 so as to be located on both sides of the blade portion 22 in the Y direction, the third shaft 2143 being parallel to the first shaft 2141 and the second shaft 2142 and being closer to the X2 direction side than the second shaft 2142; and two second belts 2152, the two second belts 2152 being mounted on the two third pulleys 2133, the two fourth pulleys 2134, and the two fifth pulleys 2135, respectively.

As shown in fig. 3 and 4, the conveying unit 30 includes: a conveyance motor (not shown); and a pushing portion 31, the pushing portion 31 is driven by the conveying motor to move along the moving direction a, and drives the shaft portion 12 to move along the moving direction a by being abutted against two ends of the shaft portion 12. Specifically, as shown in fig. 3, the pushing portion 31 includes a plurality of rod-like members provided at intervals in the X direction, extending in the Y direction, and driven by the conveying motor to move in the X direction; the distance between two rod-like members adjacent in the X direction is substantially equal to, for example, the diameter of the shaft 121 of the shaft portion 12; the rod-like member is located on the Z1 direction side with respect to the surface on the Z1 direction side of the seat 11 in the Z direction, and the distance from the surface on the Z1 direction side of the seat 11 is smaller than the diameter of the shaft 121 of the shaft 12; both end portions of the shaft portion 12 can rest on the surface of the seat portion 11 on the Z1 direction side via a gap between two rod members adjacent in the X direction, and in this state, by driving the rod members to move from the X2 direction side toward the X1 direction side by the conveyance motor, the rod members can abut both end portions of the shaft portion 12, thereby pushing the shaft portion 12 to move in the X direction.

(main effect of the present embodiment)

According to the present embodiment, a motor manufacturing apparatus includes: a support unit 10, the support unit 10 supporting an iron core of the motor; and a powder removing unit 20, the powder removing unit 20 having a driving part 21 and a blade part 22, the driving part 21 rotating the iron core supported by the supporting unit 10 around the axis of the iron core, the blade part 22 having a blade 221, the blade 221 being for contacting the outer peripheral surface of the iron core rotated by the driving part 21, so that the insulating powder and the like adhered to the outer peripheral surface of the iron core of the motor can be automatically removed by rotating the iron core around the axis thereof by the driving part 21 and contacting the outer peripheral surface of the iron core with the blade 221 of the blade part 22 in a state where the iron core coated with the insulating powder and the like of the motor is supported by the supporting unit 10, and the manufacturing efficiency and the stability of the quality of the motor can be improved compared with the manual removal of the insulating powder and the like of the outer peripheral surface of the iron core.

Further, according to the motor manufacturing apparatus of the present embodiment, since the blade 221 is provided in the blade holder 222 in such a manner that the protruding length thereof is adjustable, it is possible to easily cope with cores of different sizes and to easily adjust the contact force between the blade and the core; moreover, since the blade 221 can be attached to and detached from the blade holder 222, the blade 221 can be easily replaced when worn; further, since the blade 221 is made of spring steel and has flexibility, it is helpful to reduce the impact force generated when the blade 221 contacts the motor core, and to prevent the motor and the blade core from being damaged.

In addition, in the present embodiment, since the motor manufacturing apparatus further includes the conveying unit 30, and the conveying unit 30 moves at least a part of the support unit 10 in the moving direction a perpendicular to the axis of the iron core supported by the support unit 10, the efficiency when the iron core is subjected to the batch processing can be improved by rotating the iron core supported by the shaft portion 12 around the axis of the iron core by the driving portion 21 while moving the iron core supported by the shaft portion 12 in the moving direction a perpendicular to the axis of the iron core by the conveying unit 30.

The present invention is described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments.

For example, in the above embodiment, a powder coating unit that coats the entire iron core with powder by, for example, electrostatic powder coating and conveys the iron core coated with powder by the powder coating unit to the powder removing unit 20 by the conveying unit 30 may also be provided upstream of the powder removing unit 20.

In the above embodiment, a heating unit may be provided downstream of the powder removing unit 20, and the heating unit heats the iron core subjected to the powder removing process by the powder removing unit and conveyed by the conveying unit 30, so that the powder inside the iron core is dried and adhered to the iron core. In this case, the iron core is preferably heated by electromagnetic induction.

Further, in the above-described embodiment, the motor manufacturing apparatus includes the conveying unit 30, and the conveying unit 30 includes the conveying motor and the pushing portion 31 including the plurality of rod-like members, but the specific configuration of the conveying unit 30 may be appropriately changed as necessary. For example, in some cases, a cylinder may be used instead of the conveyance motor, and a plate-like member may be used instead of the rod-like member. In addition, the conveyance unit 30 may be omitted, as appropriate.

In the above embodiment, the driving unit 21 includes: a drive motor 211; and a belt which is driven to rotate by the driving motor 211 and rotates the shaft portion 12 by being in frictional contact with the outer peripheral surface of the shaft portion 12 of the support unit 10, but the present invention is not limited to this, and for example, in the case where the conveying unit 30 is omitted and the end portion of the shaft portion 12 is made of a magnetic metal, a motor having a magnet provided on an output shaft may be employed and the magnet may attract the end portion of the shaft portion 12 to rotate the shaft portion 12.

Further, in the above-described embodiment, in the support unit 10, the stopper 122 is slidably fitted to the shaft 121 along the shaft 121, but the present invention is not limited to this, and the shaft 121 may be divided into a first shaft and a second shaft whose central portions are separably coupled together by a screw structure, and the two stoppers 122 may be fixed to the first shaft and the second shaft, respectively.

In the above embodiment, in the support unit 10, the seat portion 11 is a pair of guide rails extending in the X direction and facing each other in the Y direction, both ends of the shaft portion 12 are supported by the pair of guide rails, and the middle portion of the shaft portion 12 supports the iron core, but the present invention is not limited to this, and the seat portion 11 may be provided as a slider slidable in the X direction and having a groove for receiving the shaft portion 12, and the middle portion of the shaft portion 12 may be supported by the seat portion 11 and the iron core may be supported by the end portions of the shaft portion 12.

In the above embodiment, the plurality of blade portions 22 are provided in the moving direction a perpendicular to the axis of the core supported by the support unit 10, but the present invention is not limited to this, and only one blade portion 22 may be provided in some cases.

Further, in the above-described embodiment, the plurality of blades 221 are provided in the moving direction a in each blade portion 22, but the present invention is not limited to this, and only one blade 221 may be included in the moving direction a in each blade portion 22.

In the above embodiment, the blade 221 is provided in the blade holder 222 so that the protruding length thereof is adjustable, but the invention is not limited thereto, and the blade 221 may be fixed to the blade holder 222.

In the above embodiment, the following configuration may be adopted: a portion of at least one blade 221 contacting the outer circumferential surface of the core is perpendicular to the outer circumferential surface.

In the above embodiment, the following configuration may be adopted: the portion of at least one blade 221 that contacts the outer peripheral surface of the core is tangent to the outer peripheral surface.

Claims

1. A motor manufacturing apparatus, characterized by comprising:

a support unit that supports an iron core of the motor; and

a powder removing unit having a driving part and a blade part,

the driving part rotates the iron core supported by the supporting unit around the axis of the iron core,

the blade portion has a blade for contacting an outer circumferential surface of the core driven to rotate by the driving portion to remove powder applied to the outer circumferential surface of the core.

2. The motor manufacturing apparatus according to claim 1,

the scraper part is provided with a scraper seat,

the scraping blade is arranged on the scraping blade seat in a mode of adjustable protruding length,

the blade is made of spring steel and has flexibility.

3. The motor manufacturing apparatus according to claim 1,

the wiper blade is provided with a plurality of blades in a direction perpendicular to an axis of the iron core supported by the support unit.

4. The motor manufacturing apparatus according to claim 3,

the part of at least one piece of the scraping blade, which is contacted with the outer peripheral surface of the iron core, is vertical to the outer peripheral surface, and/or the part of at least one piece of the scraping blade, which is contacted with the outer peripheral surface of the iron core, is tangent to the outer peripheral surface.

5. The motor manufacturing apparatus according to claim 1,

the plurality of blade portions are provided in a direction perpendicular to an axis of the core supported by the support unit.

6. The motor manufacturing apparatus according to claim 1,

the iron core support device further comprises a conveying unit, wherein at least one part of the support unit moves along a moving direction perpendicular to the axis of the iron core supported by the support unit, so that the iron core is driven to move along the moving direction.

7. The motor manufacturing apparatus according to claim 6,

the support unit has:

a seat portion; and

a shaft portion that is detachably supported by the seat portion so as to be rotatable, supports the iron core so that an axis of the iron core coincides with an axis of the shaft portion, and is driven by the transport unit so as to move in the moving direction,

the drive unit includes:

a drive motor; and

and a transmission belt that is driven to rotate by the drive motor and rotates the shaft portion by being in frictional contact with an outer peripheral surface of the shaft portion.

8. The motor manufacturing apparatus according to claim 7, further comprising:

the wiper blade is provided with a plurality of blades in the moving direction,

in the blade portion, from the upstream side to the downstream side in the moving direction, an angle formed by a portion of the plurality of blades contacting the outer peripheral surface of the core with respect to a tangent plane of the outer peripheral surface is gradually changed from 90 degrees to 0 degree.

9. The motor manufacturing apparatus according to claim 1, further comprising:

a powder coating unit that coats the entire iron core with powder by electrostatic powder spraying; and

and a conveying unit that conveys the iron core coated with the powder by the powder coating unit to the powder removing unit.

10. The motor manufacturing apparatus according to claim 9,

the iron core processing device further comprises a heating unit which heats the iron core which is conveyed by the conveying unit and is subjected to the powder removing treatment by the powder removing unit so as to dry the powder in the iron core and adhere the powder to the iron core.