JP4616182B2 - Adhesive application apparatus and method for applying permanent magnet rotor - Google Patents

Description

  The present invention relates to an adhesive application device and an adhesive application method for a permanent magnet type rotor, in which a permanent magnet is fixed to a peripheral surface of a rotor shaft or yoke by bonding a hollow cylindrical permanent magnet. is there.

  A permanent magnet type rotor used for various motors is manufactured by fixing a hollow cylindrical permanent magnet to a rotor shaft or a rotor yoke by adhesion.

  The hollow cylindrical permanent magnet needs to be filled uniformly with sufficient adhesive in the gap between the rotor shaft or the rotor yoke.

  For example, as disclosed in Patent Document 1, as a method of filling the gap between the outer periphery of the shaft and the inner periphery of the permanent magnet without waste and sufficiently filling the gap between the outer periphery of the shaft and the permanent magnet, A notch groove is formed in the axial direction of the shaft as an injection path for feeding adhesive into the gap between the circumference and the adhesive is supplied from the notch groove using a syringe with a permanent magnet inserted into the shaft. There is a way to do it.

  Furthermore, apply adhesive to the inner peripheral surface of the hollow cylindrical magnet, apply adhesive to the outer peripheral surface of the shaft, and insert the hollow cylindrical magnet coated with adhesive into the shaft with adhesive applied to the outer surface. Then, there is a method of fixing the permanent magnet to the shaft by heating or curing the adhesive at room temperature.

Japanese Patent Laid-Open No. 7-312853 (pages 2 to 3, FIGS. 1 to 3)

  In the method of manufacturing a permanent magnet rotor disclosed in Patent Document 1, special processing for providing an axial notch groove on the outer periphery of the shaft is required, which is troublesome, time consuming, costly, and poor in productivity. there were.

  Further, in the method of applying the adhesive to the outer peripheral surface of the shaft or the inner peripheral surface of the permanent magnet, or the method of applying the adhesive to both the outer peripheral surface of the shaft and the inner peripheral surface of the permanent magnet in advance, It is difficult to keep the gap between the magnet and the inner circumference uniform, and the adhesive is partially scraped off and the gap is not sufficiently filled with the adhesive. There was a problem that it took time and effort to remove the adhesive that had flowed around.

  In particular, in the case of a two-component curable adhesive that uses a mixture of two types of materials, for example, when using a main agent and a hardener, the main agent and the hardener come into contact with each other in the vicinity of a discharge hole of a pipe or nozzle. In some cases, the adhesive may be denatured or the discharge holes of the pipes and nozzles may be clogged, resulting in complicated cleaning and maintenance.

  Furthermore, if a notch groove is provided on the outer periphery of the shaft, or if a recess or small opening is formed on the outer periphery of the portion that supports the magnet, the thickness of the adhesive layer will vary, and the hollow cylindrical magnet will crack due to thermal stress. There was a problem that it became easier.

  The present invention has been made to solve the above-described problems, and two types of materials are used in the gap between the shaft or yoke and the permanent magnet without processing the groove or the like in the shaft or yoke. An adhesive applicator for a permanent magnet rotor capable of uniformly applying an adhesive comprising a constant mixing ratio, excellent in productivity, and capable of suppressing cracking of a hollow cylindrical permanent magnet, and An object is to provide an adhesive application method.

An adhesive application device for a first permanent magnet type rotor according to the present invention is provided with a plurality of adhesive discharge holes for discharging the first adhesive in the circumferential direction, and the rotor shaft or yoke is provided. A cylindrical nozzle coupled and supported coaxially and fitted with a cylindrical permanent magnet;
A valve having a nozzle for discharging a second adhesive on the outer peripheral surface of the rotor shaft or yoke;
A hand for gripping the cylindrical permanent magnet fitted to the outer periphery of the cylindrical nozzle;
A vertical movement mechanism for moving the hand in the vertical direction;
An injector and a supply path for supplying an adhesive provided corresponding to each of the adhesive discharge holes and the valve;
A rotation mechanism for relatively rotating the valve and the shaft or yoke of the rotor;
An elevating mechanism for raising and lowering the valve;
It is equipped with.

The adhesive application device for the second permanent magnet type rotor according to the present invention has a function of coupling and supporting the shaft or yoke of the rotor coaxially, and fitting and holding a cylindrical permanent magnet. A cylindrical support with
A first valve having a nozzle for discharging the first adhesive to the outer peripheral surface of the rotor shaft or yoke and the cylindrical permanent magnet and a nozzle for discharging the second adhesive are mounted to the tip. A second valve,
A hand for gripping the cylindrical permanent magnet fitted to the outer periphery of the cylindrical support;
A vertical movement mechanism for moving the hand in the vertical direction;
A retracting hand that retracts the shaft or yoke of the rotor coaxially with the cylindrical support;
An injector and a supply path for supplying an adhesive provided corresponding to each of the first valve and the second valve;
A rotation mechanism for relatively rotating the first valve and the second valve and the shaft or yoke of the rotor and a cylindrical permanent magnet;
An elevating mechanism for independently raising and lowering the first valve and the second valve;
It is equipped with.

In the first permanent magnet rotor adhesive application method according to the present invention, a rotor shaft or yoke is coaxially connected to a cylindrical nozzle provided with a plurality of adhesive discharge holes in the circumferential direction. A step of supporting and fitting a cylindrical permanent magnet to the cylindrical nozzle;
A valve having a nozzle that discharges a first adhesive on the outer peripheral surface of the rotor shaft or yoke is controlled to move up and down, and the valve and the rotor shaft or yoke rotate relative to each other. And controlling the outer surface of the rotor shaft or yoke to apply the first adhesive in a fixed pattern;
Inserting the cylindrical permanent magnet into the rotor shaft or yoke while discharging the second adhesive from the adhesive discharge hole of the cylindrical nozzle to the inner periphery of the cylindrical permanent magnet;
It is equipped with.

In the second permanent magnet rotor adhesive application method according to the present invention, the rotor shaft or yoke is coaxially connected and supported on a cylindrical support base having a gripping function, and the cylindrical permanent magnet is supported. Mating with the cylindrical support,
A first valve having a nozzle for discharging the first adhesive attached to the outer peripheral surface of the shaft or yoke of the rotor and a second valve having a nozzle for discharging the second adhesive attached to the tip, respectively. The vertical movement is controlled, and the relative rotation between the first valve and the second valve and the shaft or yoke of the rotor is controlled, and the first shaft is placed on the outer surface of the rotor shaft or yoke. Applying the adhesive and the second adhesive in a fixed pattern, and retracting coaxially with the cylindrical support;
The cylindrical magnet is moved onto the cylindrical support base and gripped by the cylindrical support base, and the first adhesive and the second adhesive are respectively arranged in a certain pattern on the inner peripheral surface of the cylindrical magnet. And applying with
Inserting the cylindrical permanent magnet into the shaft or yoke of the rotor;
It is equipped with.

  According to the first permanent magnet type rotor adhesive application device according to the present invention and the first permanent magnet type rotor adhesive application method according to the present invention, the rotor shaft or yoke outer peripheral surface and Since a very small gap between the inner surface of the cylindrical permanent magnet can be made uniform and the gap can be uniformly filled with an adhesive, cracks due to uneven thickness of the adhesive can be prevented.

  Further, since the positions and operations of the cylindrical nozzle and the nozzle of the valve are separated, cleaning of the flow path of the adhesive and the nozzle of the valve and maintenance can be performed separately, so that labor saving in maintenance can be achieved.

  Further, since it is not necessary to process a notch groove in the rotor shaft, yoke or cylindrical nozzle, the processing cost and the number of work steps can be reduced.

  According to the adhesive application device for the second permanent magnet rotor according to the present invention and the adhesive application method of the second permanent magnet rotor according to the present invention, the outer surface of the rotor shaft or yoke and Since a very small gap between the inner surface of the cylindrical permanent magnet can be made uniform and the gap can be uniformly filled with an adhesive, cracks due to uneven thickness of the adhesive can be prevented.

  In addition, two kinds of adhesives can be filled in an arbitrary mixing ratio in a gap between the outer peripheral surface of the shaft or yoke of the rotor and the inner peripheral surface of the permanent magnet.

  In addition, since it is not necessary to process notch grooves or injection ports in the rotor shaft or yoke or the cylindrical support base, it is possible to reduce processing costs and man-hours.

Embodiments of an adhesive application method and an adhesive application device according to the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a schematic configuration diagram showing a first embodiment of an adhesive application device in a permanent magnet rotor according to the present invention, and FIG. 2 shows an adhesive application process by the adhesive application device of the first embodiment. FIG. 2A shows a state in which an adhesive is being applied to the rotor shaft or the yoke 3 by the valve 5 and the nozzle 14, and FIG. 2B shows a hollow cylindrical shape by the cylindrical nozzle 1. FIG. 2 (c) shows a state after the adhesive application is completed, and FIG. 2 (d) shows the permanent magnet rotor 15 as an adhesive application device. The state at the time of taking out from is shown. However, in FIG.1 and FIG.2, the permanent magnet 4 is shown with sectional drawing.

  As shown in FIGS. 1 and 2, the adhesive application device of the first embodiment is provided with a plurality of adhesive discharge holes 2 for discharging the first (or second) adhesive in the circumferential direction. A cylindrical nozzle 1 that coaxially connects and supports the rotor shaft or yoke 3, an adhesive supply injector 9 provided corresponding to each of the adhesive discharge holes 2, and a second (or first) tip at the tip. The valve 5 to which the nozzle 14 for discharging the adhesive is attached, the hand 6 that grips the outer peripheral surface or the lower surface of the permanent magnet 4 inserted on the outer periphery of the cylindrical nozzle 1, moves along the rail 16, and moves the hand 6 in the vertical direction A vertical movement stage (vertical movement mechanism) 7 to be moved to, a supply path including an adhesive discharge hole 2 of the cylindrical nozzle 1 and a pipe 10 for supplying an adhesive from the injector 9 to the valve 5, a shaft or a yoke 3 of the rotor. Rotating stage to rotate And a rotating mechanism) 8 and the lift mechanism to lower the valve 5 (not shown).

  The cylindrical nozzle 1 is processed so that the outer diameter is equal to or larger than the outer diameter of the rotor shaft or yoke 3 and smaller than the inner diameter of the permanent magnet 4. The adhesive discharge hole 2 is disposed in the vicinity of the end surface 1b above the cylindrical nozzle, and the pipe 10 and the adhesive discharge hole 2 communicate with each other in the cylindrical nozzle 1, and the communication portion in the pipe 10 and the cylindrical nozzle 1 and the injector. A supply path for the adhesive supplied from 9 is formed.

The operation of the first embodiment will be described.
As shown in FIG. 2A, the cylindrical nozzle 1 and the rotor shaft or yoke 3 are coaxially connected to support the rotor shaft or yoke 3 on the cylindrical nozzle end surface 1b, and the cylindrical nozzle 1 is connected in this connected state. The permanent magnet 4 is inserted into the rotor shaft or yoke 3, the permanent magnet 4 is fitted into the cylindrical nozzle 1, and the rotor shaft or yoke is rotated by the rotary stage 8 in the fitted state. The valve 5 is moved up and down by a lifting mechanism that is not present, and the second (or first) adhesive 11a of the two types of adhesives is applied to the outer peripheral surface 3a of the rotor shaft or yoke 3 in a certain pattern.

  Next, as shown in FIG. 2 (b), the first (or second) of the two types of adhesive is bonded to the inner peripheral surface 4a of the permanent magnet from the plurality of adhesive discharge holes 2 of the cylindrical nozzle 1. While discharging the agent 11b, as shown in FIG. 2C, the permanent magnet 4 is moved to the rotor shaft or yoke 3 side by the hand 6 interlocked with the vertical movement stage 7. When the lower end of the permanent magnet 4 approaches the adhesive discharge hole 2, the discharge amount of the adhesive 11b is reduced, and when passing through the adhesive discharge hole 2, the discharge of the adhesive 11b is stopped.

  By such an operation, as shown in FIG. 2 (c), the two kinds of adhesives 11a and 11b are filled into the minimal gap 12 between the outer peripheral surface 3a of the shaft or yoke and the inner surface 4a of the permanent magnet. Can do.

  Next, the hand 6 is lowered, and as shown in FIG. 2 (d), the adhesive 11 a and 11 b are applied by pushing down the cylindrical nozzle 1, and the permanent magnet 4 is fitted to the shaft 3. A rotor 15 is obtained.

  According to the adhesive application device for the permanent magnet type rotor of the first embodiment, the rotor shaft or yoke 3 is arranged coaxially with the cylindrical nozzle 1 that discharges the adhesive, and the cylindrical permanent magnet 4 is cylindrical. The first (or second) adhesive 11b is cylindrically attached to the rotor shaft or yoke 3 fitted to the nozzle 1 and coated with the second (or first) adhesive 11a in a certain pattern. Since the permanent magnet 4 is inserted into the rotor shaft or yoke 3 while discharging to the magnet inner peripheral surface 4a, the minimal gap 12 between the outer peripheral surface 3a of the shaft or yoke and the inner surface 4a of the permanent magnet is made uniform. The gaps 12 can be uniformly filled with the adhesives 11a and 11b.

  Moreover, since the position and operation | movement of the cylindrical nozzle 1 and the nozzle 14 are isolate | separated, since the piping 10 and the nozzle 14 can be cleaned and maintained separately, labor saving in maintenance can be achieved.

  Further, since it is not necessary to newly process a notch groove or an injection port in the rotor shaft or the yoke 3 or the cylindrical nozzle 1, it is possible to reduce processing costs and man-hours.

  In the first embodiment, the rotary stage 8 rotates the rotor shaft or yoke. However, the rotor shaft or yoke 3 is fixed, and the rotary stage 8 and the rail 16 are connected. The valve 5 and the rail 16 may be connected to rotate the valve 5. That is, the rotor shaft or yoke 3 and the valve 5 may be relatively rotated.

Embodiment 2. FIG.
In FIG. 2, before applying the adhesives 11a and 11b, the diameter of the outer peripheral surface 3a of the shaft or yoke and the diameter of the inner peripheral surface 4a of the permanent magnet are measured, and the amount of adhesive applied is determined from the size of the gap 12. calculate. Since a necessary adhesive is required from the coating amount, it is possible to suppress protrusion of the adhesive and to prevent unfilling.

  Furthermore, the mixing ratio of the two types of adhesives 11a and 11b can be changed by adjusting the application amount of the adhesive 11b discharged from the adhesive discharge hole 2 on the outer periphery of the cylindrical nozzle 1.

Embodiment 3 FIG.
FIG. 3 is a schematic configuration diagram showing Embodiment 3 of an adhesive application device in a permanent magnet rotor according to the present invention. FIG. 3 (a) is applied to the outer peripheral surface 3a of the rotor shaft or yoke 3. FIG. FIG. 3B shows the configuration of the coating apparatus in the case of applying to the inner peripheral surface 4a of the permanent magnet 4. FIG. 4 is a side view showing an application pattern of adhesive when applying to the shaft or yoke 3 with the valves 5a, 5b and the nozzles 13a, 13b. FIG. 5 is a side view showing an adhesive application process by the adhesive application device according to the third embodiment. FIG. 5 (a) shows the rotor shaft or yoke 3 by the valves 5a and 5b and the nozzles 14a and 14b. 5 (b) shows a retracted state of the rotor shaft or yoke 3, FIG. 5 (c) shows a state where the permanent magnet 4 is raised and gripped, 5 (d) shows a state where an adhesive is applied to the permanent magnet 4, and FIG. 5 (e) shows a state where the permanent magnet 4 is inserted into the rotor shaft or the yoke 3. FIG. (F) shows a state when the assembly of the permanent magnet type rotor 15 is completed and taken out from the adhesive applicator. However, in FIG.3 and FIG.5, the permanent magnet 4 is shown with sectional drawing.

  In the third embodiment, the cylindrical support base 1c does not have the function of the cylindrical nozzle 1 for applying the other adhesive 11b shown in the first embodiment, and the rotor shaft or yoke 3 is simply coaxial. The valve 5a and the valve 5b are configured to share the application of the first adhesive 11a and the second adhesive 11b. Further, each of the valve 5a and the valve 5b includes an elevating mechanism (not shown) that moves up and down independently.

  In the adhesive application device according to the third embodiment, the adhesive is applied to various patterns by controlling the rotary stage 8 that rotates the shaft or the yoke 3 of the rotor and the lifting mechanism that moves the valve 5a and the valve 5b up and down. For example, as shown in FIG. 4, a spiral pattern (FIG. 4A), a vertical stripe pattern (FIG. 4B), a horizontal stripe pattern (FIG. 4C )), A pattern such as an overwritten pattern (FIG. 4D) in which the adhesive 11b is applied over the adhesive 11a can be applied.

The operation of this embodiment will be described.
As shown in FIG. 5A, the cylindrical support base 1c and the shaft or yoke 3 are connected coaxially, the shaft or yoke 3 is gripped by the cylindrical support base 1c, and the cylindrical support base 1c and the shaft or shaft are connected in this connected state. The permanent magnet 4 is inserted into the yoke 3, the permanent magnet 4 is fitted to the cylindrical support 1c, and the rotary stage 8, the valve 5a, and the raising / lowering mechanism of the valve 5b are controlled in the fitted state, and the nozzle 14a of the valve 5a is controlled. The pattern of the first and second adhesives 11a and 11b is applied to the outer peripheral surface 3a of the shaft or yoke 3 by the nozzle 14b of the valve 5b.

  Next, as shown in FIG. 5B, the shaft or yoke 3 coated with the first and second adhesives 11a and 11b is held by the hand 17, and the first vertical movement stage (first vertical movement stage (first vertical movement) The moving mechanism 18 is operated to retract coaxially with the cylindrical support 1c. Next, as shown in FIG. 5C, the second vertical movement stage (second vertical movement mechanism) 7 is operated with the permanent magnet 4 placed on the hand 6, and the upper part of the cylindrical support 1c. And the permanent magnet 4 is gripped by the cylindrical support 1c. While holding the permanent magnet 4 with the cylindrical support 1c, as shown in FIG. 5D, the rotary stage 8, the valve 5a, and the lifting mechanism of the valve 5b are controlled to control the nozzle 14a and the valve 5b of the valve 5a. The patterns of the first and second adhesives 11a and 11b are applied to the inner peripheral surface 4a of the permanent magnet 4 by the nozzle 14b. Next, as shown in FIGS. 5 (e) and 5 (f), by moving the permanent magnet 4 to the shaft or yoke 3 side, the two types of adhesives 11 a and 11 b are moved to the outer periphery of the shaft or yoke 3. The minute gap 12 between the surface 3a and the permanent magnet inner surface 4a is filled.

  Next, as shown in FIG. 5 (f), the adhesive 6 a and 11 b are applied by lowering the hand 6 with the second vertical movement stage 7, and the permanent magnet 4 is fitted to the shaft or yoke 3. The permanent magnet rotor 15 thus obtained is obtained.

  According to the adhesive application device for the permanent magnet type rotor of the third embodiment, the rotor shaft or yoke 3 is disposed coaxially with the cylindrical support base 1c, and the cylindrical permanent magnet 4 is cylindrically supported. After the first and second adhesives 11a and 11b are separately applied to the outer peripheral surface 3a of the shaft or yoke and the inner surface 4a of the permanent magnet so as to be fitted to the base 1c and to be gripped by the upper part of the cylindrical support base 1c. Since the permanent magnet 4 is inserted into the rotor shaft or yoke 3, the minimal gap 12 between the outer peripheral surface 3a of the shaft or yoke and the inner surface 4a of the permanent magnet is made uniform, and the adhesive 11a, 11b can be uniformly filled without excess or deficiency.

  Further, two kinds of adhesives can be filled in an arbitrary mixing ratio in the gap between the outer peripheral surface 3a of the shaft or yoke and the inner peripheral surface 4a of the permanent magnet.

  Moreover, since it is not necessary to process a notch groove or an injection port in the shaft or yoke 3 or the cylindrical support base 1c, the processing cost and the number of work steps can be reduced.

It is a schematic block diagram which shows Embodiment 1 of the adhesive agent coating apparatus for permanent magnet type rotors which concerns on this invention. It is a side view which shows the application | coating process of the adhesive agent by the adhesive agent coating apparatus of this Embodiment 1. FIG. It is a schematic block diagram which shows Embodiment 3 of the adhesive agent coating apparatus for permanent magnet rotors which concerns on this invention. It is a side view which shows the application pattern of the adhesive agent at the time of apply | coating to the shaft or the yoke 3 by valve | bulb 5a, 5b and nozzle 13a, 13b. It is a side view which shows the application | coating process of the adhesive agent by the adhesive agent coating apparatus of this Embodiment 3.

Explanation of symbols

1 cylindrical nozzle, 1a cylindrical nozzle outer peripheral surface, 1b cylindrical nozzle end surface,
1c Cylindrical support, 2 adhesive discharge holes, 3 rotor shaft or yoke,
3a The outer peripheral surface of the shaft or yoke, 4 a hollow cylindrical permanent magnet,
4a Peripheral magnet inner surface, 5, 5a, 5b valve, 6, 17 hands,
7 Second vertical movement stage (second vertical movement mechanism), 8 rotary stage,
9, 9a, 9b injector, 10 pipe, 11a, 11b adhesive, 12 gap,
14, 14a, 14b nozzle, 15 permanent magnet rotor, 16 rail,
18 First moving stage (first moving mechanism).

Claims (5)

A cylindrical nozzle that is provided with a plurality of adhesive discharge holes for discharging the first adhesive in the circumferential direction, coaxially connects and supports the rotor shaft or yoke, and is fitted with a cylindrical permanent magnet; ,
A valve having a nozzle for discharging a second adhesive on the outer peripheral surface of the rotor shaft or yoke;
A hand for gripping the cylindrical permanent magnet fitted to the outer periphery of the cylindrical nozzle;
A vertical movement mechanism for moving the hand in the vertical direction;
An injector and a supply path for supplying an adhesive provided corresponding to each of the adhesive discharge holes and the valve;
A rotation mechanism for relatively rotating the valve and the shaft or yoke of the rotor;
An elevating mechanism for raising and lowering the valve;
An adhesive application device for a permanent magnet rotor, comprising: A cylindrical support base having a function of fitting and gripping a cylindrical permanent magnet while coaxially connecting and supporting the rotor shaft or yoke;
A first valve having a nozzle for discharging the first adhesive to the outer peripheral surface of the rotor shaft or yoke and the cylindrical permanent magnet and a nozzle for discharging the second adhesive are mounted to the tip. A second valve,
A hand for gripping the cylindrical permanent magnet fitted to the outer periphery of the cylindrical support;
A vertical movement mechanism for moving the hand in the vertical direction;
A retracting hand that retracts the shaft or yoke of the rotor coaxially with the cylindrical support;
An injector and a supply path for supplying an adhesive provided corresponding to each of the first valve and the second valve;
A rotation mechanism for relatively rotating the first valve and the second valve and the shaft or yoke of the rotor and a cylindrical permanent magnet;
An elevating mechanism for independently raising and lowering the first valve and the second valve;
An adhesive application device for a permanent magnet rotor, comprising: On the cylindrical nozzle provided with a plurality of adhesive discharge holes in the circumferential direction, and connecting and supporting the shaft or yoke of the rotor coaxially and fitting a cylindrical permanent magnet to the cylindrical nozzle;
A valve having a nozzle that discharges a first adhesive on the outer peripheral surface of the rotor shaft or yoke is controlled to move up and down, and the valve and the rotor shaft or yoke rotate relative to each other. And controlling the outer surface of the rotor shaft or yoke to apply the first adhesive in a fixed pattern;
Inserting the cylindrical permanent magnet into the rotor shaft or yoke while discharging the second adhesive from the adhesive discharge hole of the cylindrical nozzle to the inner periphery of the cylindrical permanent magnet;
A method for applying an adhesive to a permanent magnet rotor, comprising: The size of the gap between the inner circumference of the cylindrical permanent magnet and the outer circumference of the rotor shaft or yoke is obtained from the inner diameter of the cylindrical permanent magnet and the outer diameter of the rotor shaft or yoke. And determining the amount of the first and second adhesives required to fill the gap, and controlling the amount of the second adhesive discharged from the plurality of adhesive discharge holes. The adhesive coating method according to claim 3. A step of fitting a cylindrical permanent magnet to the cylindrical support base while coaxially connecting and supporting the rotor shaft or yoke on the cylindrical support base having a gripping function;
A first valve having a nozzle for discharging the first adhesive attached to the outer peripheral surface of the shaft or yoke of the rotor and a second valve having a nozzle for discharging the second adhesive attached to the tip, respectively. The vertical movement is controlled, and the relative rotation between the first valve and the second valve and the shaft or yoke of the rotor is controlled, and the first shaft is placed on the outer surface of the rotor shaft or yoke. Applying the adhesive and the second adhesive in a fixed pattern, and retracting coaxially with the cylindrical support;
The cylindrical magnet is moved onto the cylindrical support base and gripped by the cylindrical support base, and the first adhesive and the second adhesive are respectively arranged in a certain pattern on the inner peripheral surface of the cylindrical magnet. And applying with
Inserting the cylindrical permanent magnet into the shaft or yoke of the rotor;
A method for applying an adhesive to a permanent magnet rotor, comprising:

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