JP2003061292A - Motor and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor or using a transport rail on the assembly line of a motor and making uniform the caulking strength of a motor yoke that is desirable in terms of a manufacturing structure, and to provide a manufacturing method of the motor where a housing and the motor yoke are integrated by caulking the nib of the motor yoke made of metal to the caulking section of a housing made of resin. SOLUTION: The motor 1 has the motor yoke 30 having an opening, and the housing 20 that blocks the opening while caulking sections 27a-27c that are engaged to the nibs 31a-31c formed in the motor yoke 30 are formed. In the motor 1, guide sections 25 and 26 that are utilized in transport are formed in the housing 20, and an insertion section 28 is formed between the guide sections 25 and 26, where a tool that can be engaged to the calking sections 27b and 27c in the housing 20 by caulking the nibs 31b and 31c in the motor yoke 30 can be inserted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor and a method for manufacturing the motor, and more particularly to a motor having a resin housing that constitutes a motor and has a guide portion that engages with a motor carrying rail, and a method for manufacturing the motor.

[0002]

2. Description of the Related Art Conventionally, as a method for moving parts to be assembled to each process in an assembly line, a pallet carrying method and an assembling carrying rail carrying method are known.

In the pallet conveying method, the parts to be assembled are mounted and fixed on a plate called a pallet and conveyed, but the unit price of the pallet itself is high, and as many pallets as the parts to be assembled on the assembly line are required. In addition, if the shape of the parts to be assembled is different, it is necessary to prepare another type of pallet according to it, and it is necessary to increase the scale of the transport mechanism by increasing the weight of the pallet. Cause a rise.

On the other hand, the transfer method using the assembly transfer rail can reduce the cost as compared with the pallet transfer method. In the assembly process of power seat motors, power window motors, etc., generally, an assembly line is used that slides the parts to be assembled by using the assembly conveyance rail.

FIG. 10 shows a front view, a bottom view and a side view of a motor 1 according to a conventional example. The motor 1 is assembled using the above-mentioned transport rail. The housing 20 is
As a base component of the assembly line of the motor 1, the side that engages with the motor yoke 30 is placed on the upper side of the transport rail.

The housing 20 is formed with a pair of parallel guide portions 50. The guide portion 50 has a guide groove 50.
It is composed of a, a supporting portion 50b, and a swing suppressing portion 50c. The housing 20 is supported by the transport rail when the guide groove 50a is engaged with the transport rail and the support portion 50b is in contact with the transport rail. Then, the housing 20 arranged on the transport rail slides along the transport rail while the orientation is regulated.

The housing 20 and the motor yoke 30 are fixed by caulking the three claws 31a, 31b, 31c of the motor yoke 30 on the housing 20 side. In the housing 20, corresponding to the claws 31a to 31c,
The caulking portions 27a to 27c are formed, and the caulking portion 27a is arranged on the center line in the carrying direction, and the connector portion 22 is formed so as to avoid it. However, the connector part 22 should not interfere with the transport rail.
It is formed so as to fit within the width of the pair of transport rails.

The other two caulking portions 27b and 27c are
It is formed so as to fit within the width of the pair of transport rails.
Therefore, the caulked portions 27b and 27c are not attached to the housing 2
0 does not interfere with the transport rail when 0 is placed on the transport rail, and the claws 31 of the corresponding motor yoke 30 respectively.
The jig does not interfere with the transport rail when caulking b and 31c.

Incidentally, the motor 1 as shown in FIG.
A circular opening 32 is provided at the end of the motor yoke 30,
The tip of the shaft 34 supported by the bearing 14 faces the vicinity of the opening 32. On the other hand, the shaft 34 has a cable wire connecting hole 34 a formed therein.
A cable wire is inserted into a so that it can rotate integrally.

The cable wire is rotatably held in a resin-made cable wire holding hose. The connection between the motor yoke 30 and the cable wire holding hose is performed by first fitting the cap 70 in the opening 32 and then connecting the cable wire holding hose to the cap 70, and at the same time, connecting the shaft 34 and the cable. The wires are also joined.

[0011]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention As shown in FIG.
The caulking portions 27a to 27c are arranged so as to fit within the width of the transport rail, and the three caulking portions 27a to 27c are not symmetrically formed with respect to the rotation axis, that is, not formed every 120 degrees about the rotation axis. . Therefore, there is a problem that the caulking angle is not uniform with respect to the circumferential direction of the motor yoke 30, and the caulking holding force of the motor yoke 30 becomes uneven.

If the caulking portions 27a to 27c are formed every 120 degrees around the rotation axis with the caulking portion 27a as a reference, the caulking portions 27b and 27c are formed in the guide portion 5.
Positionally interferes with 0.

Therefore, the length La of the guide portion 50 in the carrying direction cannot be made large, and the housing 20 cannot slide stably when the housing 20 is engaged with the carrying rail.

An object of the present invention is a motor in which a motor yoke made of metal and a housing made of resin are integrally fixed, a carrier rail can be used in an assembly line of the motor, and the motor yoke and An object of the present invention is to provide a motor that can be fixed to a housing evenly in the circumferential direction of a motor yoke that is desirable in terms of product structure.

It is another object of the present invention to provide a motor which can be carried while being engaged with a carrying rail on an assembling line, and when a metal motor yoke and a resin housing are integrally fixed, they are fixed to each other. It is an object of the present invention to provide a method for manufacturing a motor, which can perform the above-mentioned evenly in the circumferential direction of the motor yoke and can secure the manufacturing quality in the assembling process.

[0016]

According to a motor of a first aspect of the present invention, the above problem is fixed to a motor yoke having an opening and a fixing portion formed on the motor yoke while closing the opening. And a housing having a fixed portion formed therein, wherein the housing includes:
At least one guide part is formed for use during transfer.
This can be solved by forming an insertion portion into which the fixing means for fixing the fixing portion of the motor yoke and the fixed portion of the housing can be inserted in one of the guide portions.

The guide portion of the housing can be formed to have a substantially large length in the carrying direction which engages with the carrying rail, and the housing can stably carry and carry the parts to be assembled on the carrying rail of the assembly line. This is preferable because it is assembled.

Further, according to a second aspect of the present invention, the fixed portion of the motor yoke and the fixed portion of the housing are formed at equal intervals in the circumferential direction about the rotation shaft, so that the motor yoke and This is preferable because the holding force for fixing the housing can be made uniform in the circumferential direction.

Further, as described in claim 3, since the motor yoke has a substantially circular cross section,
This is preferable because the holding force for fixing the motor yoke and the housing can be equalized in the circumferential direction.

Further, according to a fourth aspect of the present invention, the guide portion is a groove formed parallel to the transfer direction, so that the housing is engaged with the transport rail in the assembly line, and the assembly process is performed between the assembly steps. This is preferable because it is possible to prevent the housing, on which the assembly parts are assembled, from swinging on the transportation rail when being transported.

According to the method of manufacturing a motor of the fifth aspect of the invention, a motor yoke having a plurality of fixed portions, a fixed portion fixed to the fixed portion, a guide portion used at the time of transfer, A housing in which at least one guide portion is formed with an insertion portion into which a fixing means for fixing the fixed portion and the fixed portion can be inserted;
A method of manufacturing a motor including: a molding step of resin-molding a housing with a mold that uses a slide mold for a molding portion corresponding to the insertion portion; and an armature assembling step of assembling an armature to the housing. And a motor yoke assembling step of assembling the motor yoke and the housing by fixing the fixed portion and the fixed portion by the fixing means after the armature assembling step. .

The fixed portion has a higher degree of freedom in selecting a forming position in the housing, and the guide portion engaging with the transport rail can stably and slidably move the housing which is a base component for mounting the component to the motor. Therefore, the motor can be securely assembled in the motor assembly process, which is preferable.

Further, as described in claim 6, in the forming step, the fixed portions are formed at equal intervals in the circumferential direction about the rotation axis, thereby holding the motor yoke and the housing. This is preferable because it is possible to obtain a motor in which the force is evenly distributed in the circumferential direction.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to the drawings. 1 is a sectional view of the motor of the embodiment, FIG. 2 is a left side view, FIG. 3 is a view of the housing of the embodiment seen from the armature side, FIG. 4 is a front view of the motor of the embodiment, and FIG. FIGS. 6A and 6B are explanatory views of a situation in which the housing of the embodiment is installed on the conveying rail, FIG. 7 is an explanatory view of a connection state of the cable wire holding hose and the motor yoke, and FIG. 8 is a description of a mold of the housing of the embodiment. 9 and 9 are left side views of a motor according to another embodiment.

The same elements as those of the conventional example will be described with the same reference numerals. Also, the arrangement, shape, etc. described below are
It is needless to say that the present invention is not limited and various modifications can be made in accordance with the spirit of the present invention.

As shown in FIG. 1, a motor 1 used as a power seat motor includes an arcuate magnet 11, an armature 12 having a winding 12a, and a shaft 1 of the armature 12.
3, bearings 14 and 15 for supporting the shaft 13, and a commutator 16 arranged at one end of the shaft 13, and are housed in a resin housing 20 and a metal motor yoke 30. ing.

As shown in FIGS. 2 to 4, the housing 2
0 is provided with the brush device 21, the bearing 15 and the like on one side, and the guide portions 25 and 26, and the three claws 31a to 31c of the motor yoke 30 are crimped and engaged on the other side. 27a to 27c, an engagement hole 29 for engaging with the gear box is formed.

Further, a connector portion 2 for supplying power
2 is formed integrally with the housing 20 and has a caulking portion 27.
It is formed on the opposite side of the rotary shaft from a and extends toward the motor yoke side.

The brush device 21 includes a brush that is in sliding contact with the commutator 16, a box-shaped brush box that slidably holds the brush, and the commutator 1 that includes the brush.
It has a spring that urges it toward the 6 side. Brush device 21
Are arranged in two places with the rotating shaft interposed therebetween.

A terminal 22a is attached to the terminal attaching portion, and the brush and the terminal 2 are attached.
2a is electrically connected by a pigtail. Furthermore, a connection terminal is provided from the terminal 22a through the connector portion 22. Further, a bearing 15 (slide bearing) is inserted and fixed by a washer.

The caulking portions 27b and 27c are the caulking portions 27.
It is formed at positions separated by 120 degrees about the rotation axis with reference to a. The caulking portions 27a to 27c are the claws 31a to
The groove 31c is engaged with and is formed substantially toward the rotation axis.

Three claws 31a-3 of the motor yoke 30
1c is formed to extend to the corresponding positions of the above-mentioned three caulking portions 27a to 27c. Therefore, the three claws 31a to 31c are arranged at positions separated by 120 degrees.
However, when the jig is caulked by the jig in the direction of the center of the rotation axis, the caulking strength is evenly distributed in the circumferential direction of the motor yoke 30, and the housing 20 and the motor yoke 30 are integrally coupled.

The guide portions 25 and 26 are provided with guide grooves 25a,
26a, supporting portions 25b and 26b, swinging restraining portions 25c and 2
6c. The guide portions 25 and 26 are formed parallel to each other in a direction substantially perpendicular to the rotation axis, and are arranged symmetrically with respect to a line connecting the rotation axis and the caulking portion 27a. Further, the swing suppressing portions 25c and 26c are formed continuously with the guide grooves 25a and 26a and project in a direction substantially perpendicular to the rotation axis direction.

The caulking portions 27b and 27c are the caulking portions 27.
Since it is arranged every 120 degrees around the rotation axis with reference to a, it is located between the guide portions 25 and 26. The caulking jig is inserted from the rotational axis direction and contacts the caulking portions 27a to 27c to caulk the claws 31b and 31c.

Therefore, between the guide portions 25 and 26,
An insertion portion 28 for inserting the crimping jig is formed, and the guide portions 25 and 26 are separated from each other. As a result, the guide portion 26 is formed shorter than the guide portion 25 in the transport direction.

FIG. 6 shows a state in which the housing 20 is arranged on the transport rail 60. The transport rail 60 is engaged with the guide portions 25 and 26, and the support portions 25b and 26b are the transport rails 6.
The housing 20 is slidably held by the transport rail 60 by abutting on the transport rail 60. The swing restraints 25c and 26c serve to restrain swing when the housing 20 engaged with the transport rail 60 is transported.

In the assembly line, the housing 20
As the assembling parts are assembled into the, the weight balance in the transport direction of the housing 20 may be lost due to the assembling of the assembling parts. Therefore, even if the weight balance is lost, the housing 20 is surely
The length Lb from the outer end portion of the guide portion 25 to the outer end portion of the guide portion 26 is set to be large so that the sheet can be held on the transport rail 60.

In the motor yoke assembling process of the assembly line, the motor yoke 30 on the carrier rail 60 is
The two are fitted into the housing 20, and while both are integrally held, they are detached from the transport rail 60 by a chuck for assembly, inverted upside down and temporarily held with the motor yoke 30 down. Then, the claws 31a to 31c are brought into contact with the caulking jig and caulked at the same time.

In the motor yoke 30, the claws 31a to 31c are simultaneously caulked, so that the caulking strength can be made uniform in the circumferential direction, and the motor yoke 30 can be made.
Can be integrated with the central axes of the housing 20 aligned. At this time, the caulking jig is inserted into the insertion portion 28 from above and comes into contact with the claws 31b and 31c.

The motor yoke 30 is a cylindrical metal part, and the side that engages with the housing 20 is open, and the claws 31a to 31c extend in the rotation axis direction. On the other hand, the bearing holding portion 34 is provided on the side opposite to the side engaging with the housing 20.
Are formed to project, and an opening 32 is formed at the end. 2 from the edge toward the axial center in the opening 32.
Protrusions 33 are formed at the points. As shown in FIGS. 1 and 5, the protrusion 33 is arranged at a position symmetrical with respect to the rotation axis of the opening 32.

Further, the magnet 11 is formed in a plate shape having a curved surface that comes into close contact with the inner peripheral surface of the motor yoke 30. The two magnets 11 are inserted into the motor yoke 30 and are arranged so as to sandwich the engagement recess 35. And magnet 1
One of the magnets 1 has one end face engaged with the engagement recess 35 and the other end faces of the two magnets 11 are simultaneously pressed by the fixed spring so as to be spread outward in the radial direction. Is in close contact with.

At both ends of the shaft 13, a connecting hole 1 having a width across flats for engaging the distal end portion 85a of the cable wire 85.
3a is formed, and the cable wire 8 is formed in the connecting hole 13a.
5 can be inserted to rotate integrally. In FIG. 7 (C),
The situation where the cable wire holding hose 80 is connected to the opening 32 is shown. As described above, the projection 3 is provided in the opening 32.
3 is formed, the cable wire holding hose 80 can be directly connected to the motor yoke 30 without using the cap 70 as in the conventional case.

As shown in FIG. 7, an annular projecting portion 84 is formed inside the tip of the cable wire holding hose 80, and an annular void portion 82 is also formed outside the projecting portion 84. Are formed. Furthermore, two concave portions 83 are formed on the side surface of the protruding portion 84, and further, on the outer surface of the tip end portion of the cable wire holding hose 80, a positioning window 83a is opened at a position corresponding to the concave portion 83.

The shape of the inner wall of the connecting portion 81 is substantially the same as the outer shape of the protruding portion of the motor yoke 30 on the side of the opening 32. When the connecting portion 81 is connected to the motor yoke 30,
Since a part of the outer surface of the protruding portion contacts the inner wall of the connecting portion 81, the motor yoke 30 and the cable wire holding hose 80 can be reliably fixed.

Therefore, the alignment window 83a is aligned with the extension position of the protrusion 33 of the motor yoke 30 in the rotation axis direction, and the connecting hole 13a of the shaft 13 is connected to the cable wire 85.
When the shaft 13 is rotationally adjusted so as to be engaged with the end portion 85a having the width across flats and the connecting portion 81 of the cable wire holding hose 80 is pressed toward the motor yoke 30, the shaft 13 and the cable wire 85 are connected. The tip of the motor yoke 30 is fitted into the space 82, and the projection 33 is engaged with the recess 83, so that the cable wire holding hose 80 and the motor yoke 30 are connected.

By engaging the projection 33 and the recess 83, the hose 80 for holding the cable wire is fixed to the motor yoke 3.
It is held without rotating with respect to zero. However, the number of the protrusions 33 may be three or more instead of two as described above, and the recesses 83 may be formed at the corresponding positions of the protrusions 33.

The structure of the housing 20 is as described above. Next, a method of manufacturing the housing 20 will be described.
The housing 20 is molded by injection molding under predetermined molding conditions using the mold 90 shown in FIG.

FIG. 8 shows a sectional view of the mold 90 of the housing 20 corresponding to the section taken along the line AA of FIG. However, the upper side of the drawing is the motor yoke 30 side. The mold 90 includes a core 91, a cavity 92, and slide molds 93 and 94. Further, the slide molds 93, 94 are provided in the cavity 92.
Insertion holes 92a and 92b for inserting the respective holes are formed.

However, for simplification of description, a slide type for forming the box-shaped brush box, a slide type for forming an undercut portion of the connector portion 22 and the like are omitted.

The slide molds 93 and 94 are provided in the housing 20.
Among them, both sides of the line connecting the rotating shaft and the connector portion 22 and the surface between the engagement holes 29 are restricted. That is,
The slide molds 93 and 94 regulate the guide portions 25 and 26, the insertion portion 28, the caulking portions 27b and 27c, and the like.

On the other hand, the core 91 and the cavity 92 regulate other portions which are not regulated by the slide molds 92 and 93, that is, the connector portion 22, the insertion portion of the shaft 13, the terminal mounting portion, the caulking portion 27a and the like.

The slide molds 93 and 94 regulate the insertion portion 28 by the insertion portion forming portions 93b and 94b, respectively. In addition, the caulking portion forming portion 93 of the insertion portion forming portions 93b and 94b.
Reference characters a and 94a regulate the caulking portions 27b and 27c, respectively.

In order to mold the housing 20, first, as shown in FIG. 8, a mold 90 composed of a core 91 and a cavity 92 is set, and slide molds 93, 9 are set.
4 is inserted into the insertion holes 92a and 92b. As a result, the space 20a for molding the housing 20 is formed. Then, the space portion 20 communicates with a runner and a gate (not shown).
A well-known resin material is filled in a.

Then, after the resin material filled in the space 20a is cured, the mold 20 is released from the above resin material, so that the housing 20 can be integrally molded.

Next, a method of manufacturing the motor 1 will be described. First, the housing 20 as a base component for assembling the motor 1 is placed with its side engaging with the motor yoke 30 facing upward, and the carrying rail 60 and the guide portions 25 and 26 engaged with each other, and placed on the carrying line.

In the transfer line, assembled parts or semi-assembled parts are manufactured. The assembling parts or the semi-assembling parts are sequentially assembled by the assembling robot to the housing 20 which is the base part in each assembling process, and the housing 20 having the assembling parts or the semi-assembling parts assembled is moved by the gripper along the transport rail 60. Each piece is transported to the next process.

In this way, the motor 1 is completed by assembling all the necessary assembly parts or semi-assembly parts to the housing 20.

After the housing 20 is placed on the carrying rail 60, the bearing 15, the washer, the brush, the terminal member and the like are assembled, and the housing 20 is carried to the armature assembling step. Then, in the armature assembling step, the armature 12 is inserted into the housing 20.

Next, in the motor yoke assembling process, the housing 20 that has undergone the armature assembling process is covered with the motor yoke 30 in which the axial direction of the bearing 14 (sliding bearing) is adjusted in advance, and the claws of the motor yoke 30 are covered. 31a-3
The housing 20 and the motor yoke 30 are integrally coupled by caulking the 1c by the caulking jig as described above.

Although the above has shown an example in which the motor 1 is assembled on the automatic assembly line, the housing 20 can be mounted on the transport rail 6 on a manual assembly line as well as on the automatic assembly line.
It is possible to make it slidable by engaging with 0 so that it can be conveyed between processes.

As described above, according to this embodiment,
It has the following effects. (1) The claw 31a of the motor yoke 30 is attached to the housing 20.
Since the caulking portions 27a to 27c with which 31c engages are formed every 120 degrees around the rotating shaft, when the housing 20 and the motor yoke 30 are integrally fixed by caulking the claws 31a to 31c, the caulking strength of the rotating shaft is reduced. It can be evenly distributed in the circumferential direction.

(2) Further, the caulking portions 27 at the above three locations
Although the a to 27c are formed on the outer side of the housing 20 having a substantially circular outer shape at intervals of 120 degrees about the rotation axis, the guide 25 is engaged with the transport rail 60.
The length Lb between both outer ends of 26 can be made large.

(3) Therefore, in the motor 1, the guide portion 25 having the length Lb increased by the transport rail 60,
Since 26 is held, a stable mounting posture can be ensured in each mounting step and the transporting step of each step.

(4) Since the connector portion 22 and the caulking portion 27a are formed adjacent to each other in the housing 20 according to the conventional example, the structure of the surface of the housing 20 opposite to the surface engaging with the motor yoke 30 is as follows. It was not symmetrical with respect to the transport direction on the transport rail 60.

However, according to this embodiment, the connector portion 2
2 is a position opposite to the caulking portion 27a with the rotary shaft interposed therebetween, can be formed between the caulking portions 27b and 27c, and can be configured symmetrically, which is preferable.

(5) Further, the guide portions 25 and 26 are separated by the insertion portion 28, and the caulking portions 27a to 27c are arranged every 120 degrees around the rotation axis. Since the height of the housing 20 in the rotation axis direction is not affected, the length of the motor 1 in the rotation axis direction can be made substantially the same as in the conventional case.

(6) Two in the opening 32 of the motor yoke 30.
Since the protrusions 33 are formed at the locations, the motor yoke 3
0 is a connecting portion 81 having a concave portion 83 that engages with the protrusion 33.
Since it can be directly connected to the cable wire holding hose provided with, the number of parts can be reduced, which is preferable.

The embodiment of the present invention may be modified as follows. In the above embodiment, the housing 20 and the motor yoke 30
The coupling with the motor yoke 30 was performed by caulking the claws 31a to 31c of the motor yoke 30, but as shown in FIGS. 9A and 9B, the housing 20 and the motor yoke 30 are respectively engaged at three positions. A hole may be provided and the housing 20 and the motor yoke 30 may be screwed with a screw and a nut.

In this case, the flange portion may be extended outward in the radial direction from the end portion of the motor yoke 30 that is engaged with the housing 20, and the flange portion may be provided with three engagement holes. Therefore, the motor yoke 30 of the motor 1 according to the embodiment shown in FIG. 1 has a smaller diameter, and the motor yoke 30 having the flange portion and the housing 20 may be combined.

Further, in the above embodiment, the caulking portion 27a is used.
Although the connector portion 22 and the connector portion 22 are arranged apart from each other, they may be formed adjacent to each other like the conventional motor 1.

Further, in the above embodiment, the supporting portion 25b,
Since the outer end surface of 26b has an arcuate shape, the area in which the supporting portions 25b and 26b come into contact with the transport rail 60 becomes smaller as it approaches the caulking portion 27a, but the supporting portions 25b and 26b face outward. It may have a protruding shape. This is preferable because the transportation rail 60 improves the stability of holding the housing 20.

In the above embodiment, the motor 1 is connected to the cable wire holding hose 80 having the connection portion 81 that engages with the protrusion 33 by providing the protrusion 32 at the opening 32 of the motor yoke 30. However, if the cable wire holding hose 80 has the concave portion 83 corresponding to the protrusion 33, the protrusion 33 may be provided at three or more places.

Further, in the above embodiment, the power seat motor having no motor deceleration portion has been described as an example.
It may be used for a motor having a housing 20 integrally formed with a worm shaft and a speed reducer for accommodating a wheel gear meshing with the worm shaft, for example, a wiper motor, a power window motor, a sunroof motor, or the like.

The technical ideas other than the claims that can be understood from the above embodiment will be described below. (1) The motor according to claim 1, wherein the fixing means is a jig. The use of a jig is preferable because the housing and the motor yoke can be reliably fixed.

(2) The motor according to claim 2, wherein
The said fixing means is a fixing member, The motor characterized by the above-mentioned. By using the fixing member, the housing and the motor yoke can be reliably fixed, which is preferable.

(3) The method for manufacturing a motor according to claim 5 or 6, wherein the fixing means is a jig, and the jig is inserted into the inserting portion to fix the fixing portion and the covered portion. A method of manufacturing a motor, characterized in that the fixing portion is fixed.
This is preferable because a jig can be inserted and the fixed portion and the fixed portion can be fixed at the same time.

(4) A method of manufacturing a motor according to claim 5 or 6, wherein the fixing means is a fixing member, and the fixing member is inserted into the insertion portion to allow the fixing portion and the cover member to be inserted. A method of manufacturing a motor, characterized in that the fixing portion is fixed. It is preferable that the fixing member can fix the fixed portion and the fixed portion.

(5) A method for manufacturing a motor according to claim 5 or 6, wherein in the step of assembling the motor yoke, the motor yoke has a substantially circular cross section. Since the motor yoke has a substantially circular cross section, a holding force for fixing the motor yoke and the housing can be further obtained in the circumferential direction.

(6) The motor manufacturing method according to claim 5 or 6, wherein in the molding step, a guide portion having a groove parallel to the transfer direction is resin-molded. . In the assembly process of the motor, the housing, which is the base component, can be prevented from swinging on the transport rail, which is preferable.

[0080]

As described above, according to the motor of the present invention, the motor yoke made of metal and the housing made of resin are integrally fixed, and the motor is engaged with the carrying rail in the assembly line. Thus, it is possible to carry and assemble the assembled parts in a stable posture, and to fix the motor yoke and the housing evenly in the circumferential direction of the motor yoke which is desirable in terms of product structure.

According to the motor manufacturing method of the present invention, the motor can be carried while being engaged with the carrying rail on the assembly line, and when the metal motor yoke and the resin housing are integrally fixed. In addition, both can be fixed evenly in the circumferential direction of the motor yoke, and a motor can be manufactured in which the manufacturing quality in the assembly process can be ensured.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a motor according to an embodiment.

FIG. 2 is a left side view of the motor of the embodiment.

FIG. 3 is a view of the housing of the embodiment as viewed from the armature side.

FIG. 4 is a front view of the motor of the embodiment.

FIG. 5 is a right side view of the motor of the embodiment.

FIG. 6 is an explanatory diagram of a situation in which the housing of the embodiment is installed on a transport rail.

FIG. 7 is an explanatory diagram of a connection state of a cable wire holding hose and a motor yoke.

FIG. 8 is an explanatory diagram of a mold of the housing of the embodiment.

FIG. 9 is a left side view of a motor according to another embodiment.

FIG. 10 is a front view (A), a bottom view (B) and a left side view (C) of a conventional motor.

[Explanation of symbols]

1 motor, 11 magnets, 12 armatures, 12a
Winding, 13 shaft, 13a connecting hole, 1
4, 15 bearings, 16 commutator, 20 housing, 20a space part, 21 brush device, 22
Connector part, 22a Terminal, 25, 26 Guide part, 25a, 26a Guide groove, 25b, 26
b support portion, 25c, 26c rocking prevention portion, 27a,
27b, 27c Caulking portion, 28 Inserting portion, 29
Engagement hole, 30 motor yoke, 31a, 31b, 3
1c Claw, 32 opening, 33 protrusion, 34 bearing holding part, 34a connecting hole, 35 engaging recess, 5
0 guide part, 50a guide groove, 50b support part,
50c rocking | swiveling prevention part, 60 conveyance rail, 70 cap, 80 cable wire holding hose, 81
Connection part, 82 void part, 83 concave part, 83a alignment window, 84 protruding part, 85 cable wire, 90 mold, 91 core, 92 cavity, 92a, 92b insertion hole, 93, 94 slide type, 93a, 94a caulking part Forming part, 93b,
94b Insertion part forming part

Claims (6)

[Claims] 1. A motor comprising: a motor yoke having an opening; and a housing formed with a fixed portion fixed to a fixing portion formed on the motor yoke while closing the opening. A guide portion used at the time of transfer is formed in the housing, and fixing means for fixing the fixing portion of the motor yoke and the fixed portion of the housing can be inserted into at least one of the guide portions. A motor having an insertion portion formed therein. 2. The motor according to claim 1, wherein the fixed portion of the motor yoke and the fixed portion of the housing are formed at equal intervals in the circumferential direction around the rotation shaft. motor. 3. The motor according to claim 1 or 2, wherein the motor yoke has a substantially circular cross section. 4. The motor according to claim 1, wherein the guide portion is a groove formed parallel to the transfer direction. 5. A motor yoke having a plurality of fixing parts,
A fixed part fixed to the fixed part, a guide part used at the time of transfer, and an insertion part into which fixing means for fixing the fixed part positioned on at least one of the guide parts and the fixed part can be inserted And a housing formed with, and a molding step of resin-molding the housing with a mold that uses a slide mold for a molding portion corresponding to the insertion portion, An armature assembling step of assembling to a housing, and a motor yoke assembling step of assembling the motor yoke and the housing by fixing the fixing portion and the fixed portion by the fixing means after the armature assembling step. ,
A method of manufacturing a motor, comprising: 6. The method for manufacturing a motor according to claim 5, wherein in the molding step, the fixed portions are formed at equal intervals in a circumferential direction around a rotation axis. Method.