JPH0638466A - Manufacture of motor and motor assembling apparatus used therefor - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a motor manufacturing method and apparatus capable of eliminating centering work by hammering. A rotary operation device 33 is combined with a screw fastening device 60. The rotor 15 is operated by the rotary operation device 33.
While the screw is forcibly rotated from the outside, the yoke 2 of the motor 1 and the end bracket 8 are screw-fastened with screws 19 to align the axis of the rotor 15 with the axis of the bearing of the yoke 2 and the end bracket 8. While securing the state, perform screw tightening work with the screw tightening device 60,
Assemble the motor 1 while aligning it. [Effect] Since the motor 1 is assembled while being aligned, the aligning work by hammering in the subsequent process can be eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a motor and a motor assembling apparatus used therefor, and more particularly, to an improvement in an alignment technique for assembling a rotor and an end bracket to a motor yoke. , Effective for use in manufacturing various small motors mounted on motorcycles and automobiles.

[0002]

2. Description of the Related Art Generally, various electric components are mounted on motorcycles and automobiles, and small motors are widely used to drive these electric components.

[0003] Conventionally, in the manufacture of this type of small motor, after the rotor and the end bracket are assembled to the yoke that constitutes the stator together with the end bracket, the fastening work with screws or rivets between the yoke and the end bracket. And an assembling method in which the yoke, the rotor and the end bracket are integrally connected.

However, in the motor manufacturing method including the steps for carrying out such a motor assembling method,
When the work is tightened with screws or rivets, tilting or twisting of the work occurs, which causes an error between the rotor shaft center and the yoke and end bracket bearing shaft centers. There are cases in which it becomes less smooth and astringent, and the preset rotation performance cannot be obtained.

Therefore, when the rotation of the rotor is not smooth, the side surfaces of the yoke and the end bracket are struck by a hammer in a later step to perform an alignment work for correcting the error between the shaft centers. Will be implemented.

[0006]

However, in the above-described conventional method of manufacturing a motor, there are cases in which the centering work by hammering is carried out, so that there are the following problems.

Since the centering work by hammering is performed by a person, the production efficiency is low and skill is required.

Some motor products cannot perform centering work by hammering.

The appearance of the motor may be damaged by hammering.

Therefore, an object of the present invention is to provide a motor manufacturing method and a motor assembling apparatus used for the same, which can eliminate centering work by hammering.

[0011]

According to the method of manufacturing a motor of the present invention, a rotor is inserted into a yoke, an end bracket is covered on one end opening of the yoke, and a rotor shaft is attached to the yoke and the end bracket. In a method of manufacturing a motor, which is rotatably supported by bearings arranged respectively, and a yoke and an end bracket are fastened, when the fastening work of the yoke and the end bracket is performed, the rotor is By rotating, the alignment of the shaft center of the rotor and the shaft center of the bearing is ensured.

The motor assembling apparatus according to the present invention is
A rotation operation device for rotating the rotor shaft from the outside is combined with a fastening device for performing the fastening work between the yoke and the end bracket.

[0013]

According to the above-mentioned first means, since the fastening work between the yoke and the end bracket is carried out while the rotor is being rotated, the shaft center of the rotor and the shaft center of the bearing in the yoke and the end bracket. And will be completely fastened, and the fastening will be completed. That is, during the fastening operation, the rotor is rotated to maintain the centered state without inclination, so that the yoke and the end bracket are fastened in the aligned state.

Since the yoke and the end bracket are fastened in the state where the rotor, the yoke, and the end bracket are aligned as described above, the aligning work by hammering in the subsequent process can be eliminated.

According to the above-mentioned second means, since the rotor of the temporary assembly motor can be forcibly rotated from the outside during the fastening work, the temporary assembly motor can be rotated from the inside. Complete. Therefore, it is not necessary to preliminarily form a field and to supply power to the rotor.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an enlarged partially cutaway front view showing a main part of a motor assembling apparatus according to an embodiment of the present invention, and FIG. 2 is a partially cutaway front view showing its rotary operation device section. Is a partially cut side view, FIG. 4 is a partially cut front view showing the fastening device portion, and FIG. 5 is a partially cut side view. FIG. 6 (a),
7B and 7C are partially cut side views, rear views and front views showing the motor, and FIGS. 7A and 7B are plan views and front views showing the pallet.

In the present embodiment, the motor assembling apparatus according to the present invention is constructed as an assembling apparatus for assembling the motor shown in FIG. 6 by fastening screws while automatically performing the centering work. ing.

The motor 1 shown in FIG. 6 comprises a stator composed of a yoke and end brackets, and a rotor composed of an armature and a commutator.
The yoke 2 is a thin plate made of a magnetic material such as iron, and is integrally formed into a two-stage cylindrical shape with one end open and the other end closed by deep drawing, and the flange 3 is formed at the open end.
Are integrally provided so as to project radially outward. Flange 3
Has a substantially rectangular outer shape, and one screw insertion hole 4 is provided on each of the two shorter sides of the outer shape, and the screw insertion holes 4 are arranged on the center line of the screw insertion hole 4 and are formed so as to penetrate in the thickness direction.

On the other hand, on the closed wall of the yoke 2, a bearing metal mounting portion 5 having a small diameter cylindrical shape is formed so as to bulge in the axial direction by deep drawing, and the bearing metal 6 is accommodated in the bearing metal mounting portion 5. It is press-fitted. The bearing metal 6 has its axis aligned with the cylinder core of the yoke 2.

Further, a plurality of magnets 7 for forming a field are arranged on the inner peripheral surface of the yoke 2 at intervals in the circumferential direction, and are bonded by an adhesive or the like.

The end bracket 8 is made of a hard resin and is integrally formed into a substantially drop-shaped flat plate shape. A shaft insertion hole 9 is opened substantially at the center of the end bracket 8 so as to penetrate in the thickness direction, and a bearing metal 10 is press-fitted into the shaft insertion hole 9. The bearing metal 10 has its axis aligned with the axis of the bearing metal 6 of the yoke 2 when the end bracket 8 is assembled to the yoke 2.

A screw hole 11 is arranged on the center line of the end portion of the end bracket 8 on the pointed end side so as to penetrate therethrough in the thickness direction. Further, a screw hole 12 is disposed at an end portion on the opposite side of the end bracket 8 at a position near the shaft insertion hole 9 on the center line and is recessed halfway in the thickness direction. The screw hole 11 and the screw hole 12 are formed in the flange 3 of the yoke 2.
Are arranged so as to face the two screw insertion holes 4 and 4 respectively opened in the.

A brush device 13 is attached to the end surface of the end bracket 8 facing the yoke 2 side. Two lead wires 14 penetrating the end bracket 8 in the thickness direction are electrically connected to the brush device 13.
The brush device 13 is configured to energize the commutator with the electric power transmitted by the lead wire 14 by slidingly contacting the commutator described later.

The rotor 15 of the motor 1 is provided with a rotor shaft 16, and a commutator 17 and an armature 18 are mounted and fixed adjacent to each other on the outer periphery of the rotor shaft 16. An engaging portion 16a is formed on the outer circumference of one end of the rotor shaft 16 so as to form a plane parallel to the axial direction.

When the yoke 2, the end bracket 8 and the rotor 15 each having the above-described structure are supplied to the motor assembling apparatus according to the present invention, in the preceding step (not shown), Assembled in advance as shown in.

The rotor 15 is opposed to the end bracket 8 with the commutator 17 side facing the brush device 13 side.
The end of the rotor shaft 16 on the commutator 17 side is the bearing metal 10.
Be inserted into. Subsequently, the brushes of the brush device 13 are brought into sliding contact with the commutator 17, respectively.

Rotor 1 with end bracket 8 mounted
5 is inserted into the yoke 2 with the armature 18 side facing the back side, and the back side end of the rotor shaft 16 is fitted into the bearing metal 6. At this time, if the magnet 7 of the yoke 2 is not magnetized, the insertion work of the rotor 15 can be executed very smoothly.

Subsequently, the flange 3 of the yoke 2 and the end bracket 8 are brought into contact with each other, and the flange 2 side 2
The individual screw insertion holes 4 and 4 are aligned with the screw hole 11 and the screw hole 12 on the end bracket 8 side, respectively.

In the above-mentioned temporary assembly state, the motor 1 is set on the jig on the pallet shown in FIG.

The pallet 20 shown in FIG.
1 and the jig 21 is a temporarily assembled motor 1
Is configured to be held in a predetermined posture and a predetermined positioning state. The jig 21 includes a main body 22 formed in a substantially square flat plate shape, and two mounting brackets 23 are arranged on the lower surface of the main body 22 in parallel with each other and are mounted vertically downward. The mounting bracket 23 is configured to mount the pallet 20 on the conveyor.

A motor holding hole 24 is provided on the upper surface of the jig body 22.
The holding hole 24 is formed in a plane shape similar to the front shape of the end bracket 8. The end bracket 8 of the motor 1 temporarily assembled in the holding hole 24 is fitted with the yoke 2 facing upward, so that the temporarily assembled motor 1 is positioned in the jig 21 in a predetermined posture and positioned. It will be set in the state where it was set.

A shaft insertion hole 25 for inserting a rotary operation shaft, which will be described later, is provided on the lower surface of the jig main body 22, and a holding hole 24 is provided.
It is opened to penetrate the bottom of the. The shaft insertion hole 25 is arranged so that its axis matches the axis of the rotor shaft 16 of the motor 1 set in the holding hole 24.

Next, the structure of the motor assembling apparatus according to the embodiment of the present invention will be described.

The motor assembling apparatus 30 according to this embodiment is
It is installed in a part of the conveyor line 31 in which the motor manufacturing method according to the present invention is carried out.
The machine base 32 is installed along with. Machine stand 3
A rotary operation device and a fastening device are installed on the upper and lower sides of the conveyor line 31 on the upper side of the conveyor line 31.

As shown in FIGS. 2 and 3, the rotary operation device 33 has a pair of guide rails 34,
Both guide rails 34, 34 are arranged on both sides (hereinafter, referred to as left and right sides) corresponding to the front and rear of the conveyor line 31 in the machine base 32 in the transport direction, and are vertically legged.
On the machine base 32, a cylinder device 35 is installed vertically upward at one outer side (hereinafter, referred to as a rear side) of the conveyor line 31 between the left and right guide rails 34, 34 in a direction perpendicular to the conveying direction. ing.

Slide bushes 36, 36 are vertically slidably fitted to the left and right guide rails 34, 34, and a slider 37 is fixedly installed between the left and right slide bushes 36, 36. ing.

A first connecting bar 38 is provided on the rear surface of the slider 37.
Are arranged and fixed in the vertical direction, and a second connecting bar 39 is horizontally projected rearward from the upper end of the first connecting bar 38. The piston rod 35 a of the cylinder device 35 is connected to the second connecting bar 39 via a joint 40. Therefore, the slider 37 is attached to the cylinder device 3
It is adapted to be lifted and lowered by the expansion and contraction operation of 5.

A third connecting bar 41 is horizontally protruded forward from the lower end of the first connecting bar 38.
1, a motor 42 with a brake is installed vertically upwardly via a gear head 43. The motor 42 and the gear head 43 are moved up and down together with the slider 37 by the cylinder device 35.

A sleeve 44 is vertically arranged on the slider 37 and rotatably supported by a bearing 45, and the sleeve 44 is fixed to an inner race of the bearing 45 by a fine nut 46.

The rotary operation shaft 4 is provided in the hollow portion of the sleeve 44.
7 is inserted through a ball spline 48 so as to be slidable in the vertical direction in a stopped state, and a spring 49 is interposed between the lower end surface of the rotary operation shaft 47 and the bottom surface of the sleeve 44. ing. Therefore, the rotary operation shaft 47
Is floatingly supported by the spring 49 in the sleeve 44. Rotation operation axis 4
A hole 47 a for detachably connecting to the rotor shaft 16 of the motor 1 is formed in the upper end surface of the motor 7.

On the other hand, the sleeve 44 is connected at its lower end to the output shaft 43a of the gear head 43 via a slip clutch 50. Therefore, the sleeve 44 is rotationally driven by the motor 42 with a brake via the gear head 43 and the slip clutch 50. The rotational force of the sleeve 44 is transmitted to the rotary operation shaft 47 via the ball spline 48, so that the rotary operation shaft 47 is rotationally driven by the motor 42.

Next, a screw tightening device 60, which is an example of a tightening device installed above the conveyor line 31, will be described.

As shown in FIGS. 4 and 5, the screw tightening device 60 is provided with two columns 61 which are vertically erected on the machine base 32 (see FIGS. 2 and 3). A support plate 62 is horizontally bridged and fixed to an upper end between the columns 61. The support plate 62 includes two suspension shafts 63, 6
3 are vertically arranged at the front and rear positions, and are slidably supported via the slide bushes 64, 64. A connecting plate 65 is horizontally bridged and fixed between the upper ends of the front and rear suspension shafts 63, 63.

A screw holder 70 is slidably supported in the vertical direction between the lower ends of the two suspension shafts 63, 63 via slide bushes 66, 66. The screw holder 70 includes stoppers 67, 67 screwed to the lower ends of the shafts 63, 63.
The lower limit is regulated by the screw holder 70. Therefore, the screw holder 70 is hung on the shafts 63, 63 at the lower limit position.

Further, the upper end of the screw holder 70 and both shafts 63,
A spring 69 is provided in a compressed state between the spring receiving portion 68 and the spring receiving portion 68, which is provided at an intermediate position of 63.
The screw holder 70 is always urged downward by this spring.

Although not described in detail, the screw holder 70
Has a main body 71, and the main body 71 has a screw holding hole 72.
A pair, and the left and right positions are opened vertically. The left and right holding holes 72, 72 have lower ends facing the screw holes 11 and 12 of the temporary assembly motor 1, respectively, and upper ends facing left and right driver bits, which will be described later. Then, one screw 19 is delivered to each of the left and right holding holes 72, 72 and is automatically and sequentially supplied by a screw supply device (not shown).

The support plate 62 has two rotation blocks 7
Reference numerals 4 and 74 are respectively arranged on the left and right sides in the central portion so as to extend in the vertical direction, and are rotatably supported in the horizontal plane by the cross roller rings 73 and 73. The left and right rotary blocks 74, 74 include left and right bit holders 75, 75.
Are supported by a ball spline coupling (not shown) so as to be slidable in the vertical direction. The left and right bit holders 75, 75 are vertically supported by the left and right driver bits 76, 76. They are connected downward in each direction.

The upper end portions of the left and right bit holders 75, 75 are respectively penetrated upward through the connecting plate 65, and stoppers 77 projecting from the upper ends thereof are connected to the connecting plate 65.
By abutting on the thrust bearings 78 attached to the above, they are rotatably suspended at the lower limit position.

Further, on the upper portions of the left and right bit holders 75, 75, the spring bearings 80, 80 are provided with the bearings 79,
Each of them is rotatably supported in a vertically regulated position via 79. Springs 81, 81 are respectively interposed between the left and right spring receivers 80, 80 and the connecting plate 65 in a stored state, and the left and right bit holders 75 are always attached downward by the respective springs 81, 81. It is energized.

On the other hand, the driven gears 82, 82 are mounted on the outer circumferences of the lower end portions of the left and right rotary blocks 74, 74 so as to rotate integrally with each other.
Are driven to rotate by respective drive-side gears 83, 83 rotatably supported on the support plate 62. Although detailed description is omitted, the left and right drive-side gears 8
3 and 83 are rotary drive devices 84 installed on the support plate 62.
It is designed to be driven by rotation.

A bracket 85 is provided on the rear end of the support plate 62, and a cylinder device 86 is vertically mounted on the bracket 85. The piston rod 86a of the cylinder device 86 is the joint 8
It is connected to the connecting plate 65 via 7. Therefore,
The connecting plate 65 is driven up and down by a cylinder device 86, and the screw holder suspension shaft 63 and the bit holder 75 are moved up and down as the connecting plate 65 moves up and down.

Next, the screw fastening process of the motor in the motor manufacturing method according to the embodiment of the present invention will be described for the case where the motor assembling apparatus having the above structure is used.

In the previous step, the temporarily assembled motor 1 as described above is sequentially supplied as a workpiece to the screw fastening step of the motor by the motor assembling apparatus on the conveyor line 31 by pitch feed.

When the temporarily assembled motor 1 as the work is fed by the pitch and intermittently stopped at the position of the motor assembly device 30 on the conveyor line 31, the screw tightening device 6
The zero cylinder device 86 is shortened. Since the connecting plate 65 is lowered by this shortening operation, the screw holder 70 suspended by the connecting plate 65 via the suspension shaft 63 is lowered.

The descended screw holder 70 is pressed against the flange 3 of the motor 1 which is intermittently stopped so that the screw holder 70 and the pallet 20 attached to the conveyor line 31
The flange 3 and the end bracket 8 of the motor 1 are pressed down.

At this time, after the screw holder 70 comes into contact with the upper surface of the flange 3 of the motor 1, the suspension shaft 63 is slightly lowered by the cylinder device 86, so that the suspension shaft 63 is interposed in the middle of the suspension shaft 63. Since the spring 69 is compressed and deformed, the screw holder 70 is in a state of pressing and holding the flange 3 and the end bracket 8 by the elastic force of the spring 69.

Subsequently, the screws 19 are automatically supplied to the left and right screw holding holes 72, 72 of the screw holder 70 by the screw supply device. The screws 19 supplied to the left and right holding holes 72, 72 are inserted through the left and right screw insertion holes 9, 9 of the flange 3 held by the screw holder 70, and the screw holes 11 and 12 of the end bracket 8 are inserted. It will be in a state matched to each.

In this way, the screw holder 70 is mounted on the motor 1
When the limit switch or the like (not shown) confirms that the screw 19 has been supplied, the cylinder device 35 of the rotary operation device 33 is extended. Since the slider 37 is raised by this extension operation, the slider 3
The sleeve 44 and the motor 42, etc., supported by 7 simultaneously rise.

When the sleeve 44 rises, the rotary operation shaft 47 rotatably and floatingly supported by the sleeve 44 rises. The lifted rotary operation shaft 47 is inserted into the shaft insertion hole 25 formed in the jig 21 of the pallet 20 which is intermittently stopped at the position directly above, and the engagement hole 47a formed in the tip end surface of the rotation operation shaft 47 is formed in this jig. 21 is fitted to the rotor shaft 16 of the motor 1 held by the screw holder 70.

At this time, when the tip end surface of the rotary operation shaft 47 contacts the rotor shaft 16 of the motor 1, or after the rotary operation shaft 47 is fitted on the rotor shaft 16, the slider 37 is slightly moved by the cylinder device 35. Ball spline 4 when raised
When the rotary operation shaft 47 slidably supported by the sleeve 44 is lowered by 8, the spring 49 interposed between the sleeve 44 and the rotary operation shaft 47 is compressed and deformed. The shock of
The rotation operation shaft 47 and the rotor shaft 16 are fitted by the spring 4
It will be executed properly under the resilience of 9.

When the motor 42 with a brake is operated, the rotational driving force of the motor 42 is transmitted to the sleeve 44 via the gear head 43 and the slip clutch 50, so that the slider 37 can rotate freely via the bearing 45. The supported sleeve 44 is rotationally driven. Sleeve 4
When 4 is rotationally driven, the rotary operation shaft 47 connected to the sleeve 44 by the ball spline 48 is rotationally driven. The rotor shaft 16 is rotationally driven by the rotation of the rotary operation shaft 47.

In the unlikely event that the rotor shaft 16 is strongly fixed, the rotational driving force of the motor 42 is cut off by the slip clutch 50, so that the rotor shaft 16 and the rotary operation shaft 47, The sleeve 44, the ball spline 48, etc., as well as the gear head 43 and the motor 4
In 2, it is possible to prevent the trouble caused by the excessive rotation drive.

When the rotor shaft 16 is rotationally driven by the motor 42, the cylinder device 86 of the screw tightening device 60 is further shortened and the connecting plate 65 is lowered. By this lowering, the left and right screw holders 75, 75 respectively suspended by the connecting plate 65 are lowered, and the left and right driver bits 76, 76 connected to the respective screw holders 75 are lowered respectively.

Left and right driver bits 76, 76 descending
Are screws 19, 19 held in the left and right holding holes 72, 72
And the screws 19, 19 are pushed down as they descend. At this time, the spring 81 interposed in the middle of each bit holder 75 is compressed and deformed, so that the driver bit 76 is pushed down by the elastic force of the spring 81.

At this time, as the connecting plate 65 is lowered, the connecting plate 65 and the spring receivers 6 of the left and right suspension shafts 63, 63 are connected.
The springs 69 and 69 interposed between the springs 8 and 68 are further compressed and deformed. Therefore, both suspension shafts 63, 6
The screw holder 70 suspended at the lower end of 3 only increases the pressing force of the motor 1 and does not descend.

Simultaneously with the shortening operation of the cylinder device 86, the driven gears 82, 82 are rotationally driven by the rotary drive device 84 via the left and right drive gears 83, 83, whereby the left and right driver bits 76, 76 are driven. Are driven to rotate.

The left and right driver bits 76,
By the rotation of 76 and the pressing down, each bit 19 aligned with the left and right driver bits 76, 76 is screwed into the screw hole 1.
1 and the screw hole 12, respectively. By screwing in the screws 19, the flange 3 and the end bracket 8 are fastened, and the yoke 2 of the motor 1 and the end bracket 8 are joined.

During this screwing operation, the rotor shaft 16 of the motor 1 is rotationally driven by the motor 42 via the rotary operation shaft 47. That is, the rotor 15 of the motor 1 continues to be forcibly rotated from the outside with respect to the yoke 2 and the end bracket 8 during the fastening operation using the screws.

Thus, according to this embodiment, the rotor 2 is rotated and the yoke 2 and the end bracket 8 are rotated.
Since the fastening work is performed between the rotor 15, the rotor 15, the yoke 2 and the end bracket 8 are completely aligned, the fastening is completed. That is, during the fastening work, the rotor 15 is rotated,
Since the centered state is maintained without inclination, the yoke 2 and the end bracket 8 are fastened in the aligned state.

With the rotor 15, the yoke 2 and the end bracket 8 aligned in this manner, the yoke 2
Since the end bracket 8 and the end bracket 8 are fastened by the screws 19, 19, according to the present embodiment, it is possible to eliminate the centering work by hammering in the subsequent step of the motor manufacturing method.

When the fastening work between the yoke 2 and the end bracket 8 is completed in the aligned state as described above, the cylinder device 35 of the rotary operation device 33 is shortened and the slider 37 is lowered. Thus, the rotary operation shaft 47 is disengaged from the rotor shaft 16.

Further, the cylinder device 8 of the screw tightening device 60
When 6 is extended and the connecting plate 65 is raised, the left and right driver bits 76, 76 and the screw holder 70 are separated from the motor 1.

After that, the motor 1 having the yoke 2 and the end bracket 8 fastened thereto is carried on the conveyor line 31 to the next step in the motor manufacturing method as the pallet 20 is fed by the conveyor. In addition, the motor assembly device 30 in the conveyor line 31
The temporary assembly motor 1 as the next work is conveyed to the position of by the pallet 20.

Thereafter, by repeating the above work, the fastening work between the yoke 2 of the motor 1 and the end bracket 8 is sequentially carried out while ensuring the alignment state by the rotation of the rotor 15. .

According to the above embodiment, the following effects can be obtained. While rotating the rotor 15, the yoke 2 of the motor 1
By performing screw tightening between the end bracket 8 and the end bracket 8 with a screw 19, the screw tightening work is performed while ensuring the alignment of the shaft center of the rotor 15 and the shaft center of the bearing of the yoke 2 and the end bracket 8. Therefore, the assembly can be completed while aligning the motor 1.

Since the motor 1 can be assembled while being aligned, the aligning work by hammering in the subsequent step of the motor manufacturing method can be omitted. Therefore, it is possible to avoid the above-mentioned various problems caused by the centering work by hammering.

By combining the screw tightening device 60 for performing the screw tightening work with the rotation operation device 33 for rotating the rotor shaft 16 from the outside, the rotor 15 is continuously rotated from the outside during the screw tightening work. be able to.

As described above, since it is not necessary to magnetize the magnet 12 of the motor 1 in advance, it is possible to prevent the workability from being deteriorated due to the magnetization in the temporary assembly process of the motor 1. For example, if the magnet 12 is magnetized in advance,
There is a problem such that the work of inserting the rotor 15 into the yoke 2 becomes difficult.

Further, the conveyor line 31 in the magnetizing process
Since it can be set late, the adverse effect such as adsorption of iron powder, which is caused by the magnetization, can be avoided as much as possible.

According to the above, during the fastening work, the motor 1
Even if the brush device 13 of FIG.
Since 5 can be forcibly rotated, it is not necessary to install a power feeding device to the brush device 13 or a connecting device to the lead wire 14 in the fastening work process, and it is relatively easy to fully automate the motor assembly work. Can be realized.

It is needless to say that the present invention is not limited to the above-mentioned embodiment, and various modifications can be made without departing from the scope of the invention.

For example, the means for keeping the rotor 15 rotating during the fastening work is not limited to the structure in which the rotor shaft 16 is rotationally driven from the outside by the rotation operating device 33, but the temporarily assembled motor 1 is also used. The magnet 12 may be magnetized in advance, and the rotor 15 may be rotated by its own driving force by supplying electric power to the brush device 13 during the fastening work.

Further, as the fastening means for connecting the yoke 2 and the end bracket 8, the fastening structure using the screws 19 is not limited to the fastening structure using the rivets.

[0084]

As described above, according to the present invention,
By performing the fastening work between the motor yoke and the end bracket while rotating the rotor, the fastening work can be performed while ensuring the alignment of the rotor shaft center and the yoke and end bracket bearing shaft centers. Therefore, the assembly can be completed while aligning the motor.

[Brief description of drawings]

FIG. 1 is an enlarged partial cutaway front view showing a main part of a motor assembly apparatus according to an embodiment of the present invention.

FIG. 2 is a partially cut front view showing the rotary operation device section.

FIG. 3 is a partially cut side view thereof.

FIG. 4 is a partially cut front view showing the fastening device section.

FIG. 5 is a partially cut side view thereof.

6A, 6B, and 6C are a partially cut side view, a rear view, and a front view showing a motor.

7A and 7B are a plan view and a front view showing a pallet.

[Explanation of symbols]

1 ... Motor, 2 ... Yoke, 3 ... Flange, 4 ... Screw insertion hole, 5 ... Bearing metal mounting portion, 6 ... Bearing metal, 7 ... Magnet, 8 ... End bracket, 9 ... Shaft insertion hole, 10 ...
Bearing metal, 11 ... Screw hole, 12 ... Screw hole, 13 ... Brush device, 14 ... Lead wire, 15 ... Rotor, 16 ... Rotor shaft, 17 ... Commitator, 18 ... Armature, 19 ... Screw, 20 ... Pallet, 21 ... Jig, 22 ... Main body, 23 ...
Mounting bracket, 24 ... Motor holding hole, 25 ... Shaft insertion hole, 30
... motor assembling device, 31 ... conveyor line, 32 ... machine base, 33 ... rotation operating device, 34 ... guide rail, 35 ...
Cylinder device, 35a ... Piston rod, 36 ... Slide bush, 37 ... Slider, 38 ... First connecting bar, 3
9 ... 2nd connection bar, 40 ... Joint, 41 ... 3rd connection bar, 42 ... Brake motor, 43 ... Gear head,
43a ... Output shaft, 44 ... Sleeve, 45 ... Bearing,
46 ... Fine nut, 47 ... Rotation operation shaft, 47a ... Engagement hole, 48 ... Ball spline, 50 ... Slip clutch, 60 ... Screw fastening device, 61 ... Strut, 62 ... Support plate,
63 ... Suspension shaft, 64 ... Slide bush, 65 ... Connecting plate, 66 ... Slide bush, 67 ... Stopper, 68 ...
Spring receiving portion, 69 ... Spring, 70 ... Screw holder, 71 ... Main body, 72 ... Screw holding hole, 73 ... Cross roller ring, 74 ... Rotating block, 75 ... Bit holder,
76 ... Driver bit, 77 ... Stopper, 78 ... Thrust bearing, 79 ... Bearing, 80 ... Spring receiver, 81 ... Spring, 82 ... Drive side gear, 83 ... Drive side gear, 84 ... Rotation drive device, 85 ... Bracket, 86
... Cylinder device, 86a ... Piston rod, 87 ... Joint.

Claims (2)

[Claims] 1. A rotor is inserted into a yoke, and an end bracket is covered on an opening at one end of the yoke.
A rotor shaft is rotatably supported by bearings arranged on a yoke and an end bracket, respectively, and in a method of manufacturing a motor in which the yoke and the end bracket are fastened, fastening work between the yoke and the end bracket is performed. When implemented, by rotating the rotor,
A method of manufacturing a motor, characterized in that alignment between the axis of the rotor and the axis of the bearing is ensured. 2. A motor assembling apparatus used in the motor manufacturing method according to claim 1, wherein the rotor shaft is externally provided to a fastening device for performing the fastening work between the yoke and the end bracket. A motor assembling device characterized in that a rotation operating device for rotating the motor is combined.