JP3063922B2 - Method and apparatus for fusing amateur for flat motor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for fusing an amateur for a flat motor for fusing a connection wire of a coil element to a hook of an amateur commutator used for a flat motor.

[0002]

2. Description of the Related Art In general, an armature used for a flat motor is constituted by arranging a large number of unit coil elements, which are conventionally manufactured separately, in a state of being partially overlapped at a predetermined angle outside the commutator. Fuse the coil wire of the element to the hook of the commutator,
These are formed by fixing with resin.

[0003] As a method of manufacturing an armature for a flat motor for manufacturing such an armature, a method disclosed in, for example, JP-A-60-5759 is conventionally known.

However, in such a conventional method of manufacturing an armature for a flat motor, since a large number of unit coil elements manufactured separately are used as coil elements, the number of parts is increased, and assembly is performed from winding. However, there has been a problem that the steps up to the above become complicated and the manufacturing cost increases.

Therefore, for example, Japanese Patent Application Laid-Open No. 56-15995
As disclosed in Japanese Unexamined Patent Publication No. 2 (1995), that is, as shown in FIG. 12, a large number of coil elements 1 are continuously formed by one coil wire e via a connection wire 3, As shown in FIG. 13, it is arranged around the commutator 5, and the central part of the connection line 3 is fused to the hook 7 of the commutator 5.

Then, as shown in FIG. 14, for example, as shown in FIG. 14, the continuous coil elements 1 are sequentially coiled from one side to a plurality of flat winding jigs 2 through which a shaft 9 is inserted. Are stacked and wound, and the coil elements 1 are continuously formed on the respective winding jigs 2. Then, by energizing the continuous coil elements 1, the coil wires e forming the coil elements 1 are temporarily bonded to each other. After that, the coil elements 1 are sequentially removed from the winding jig 2, and the removed coil elements 1 are removed.
Is fused on the hook 7 of the commutator 5 and then resin-molded in this state.

However, in such a conventional method of manufacturing an amateur for a flat motor, a large number of coil elements 1 are required.
Are formed continuously, so that it is very difficult to automate the fusing of the coil element 1 to the commutator, and it is necessary to rely on manual work, which requires a large number of manufacturing steps. there were.

[0008] In order to solve such a conventional problem, the inventors of the present invention quickly and reliably connect a connecting wire of a plurality of coil elements formed continuously by one coil wire to a hook of a commutator. An application was made for a method of fusing an amateur for a flat motor capable of fusing (Japanese Patent Application No. 1-341762).

This will be described with reference to FIGS. First, as shown in FIG. 15, a commutator 15 is inserted from a through hole 13 formed at the center of the transfer jig 11 upward from below so that the hook 17 opens upward, and the guide is inserted. When the hook 17 hits the lower part of the plate 33, the guide plate 33 and the commutator 15 rise to a predetermined position, and the hook 17 of the commutator 15 uses a coil element (for example, a wire having a diameter of 0.48 mm with 30 turns) 19 16 in this state.
As shown in (1), the hook 17 is crushed, and the coating resin and the insulating resin of the connection wire 21 are broken and fused.

[0010] As shown in FIG. 17, the transfer jig 11 is provided with a coil element 19 removed from the winding jig.
A container body 23 radially accommodated such that the connection line 21 of the coil element 19 is located on the center side;
As shown in FIG. 18, a holding mechanism 25 including a holding plate 27 for holding the coil element 19 in an upright state and a holding claw 29 is provided.

FIG. 19 shows the hook 1 of the commutator 15.
7 shows details of a hooking device for locking the connection wire 21 of the coil element 19, the hooking device includes a plurality of guide plates 33 arranged radially, and each of the guide plates 33 is 19 connection lines 21
And a commutator guide mechanism 35 for inserting the hook 17 of the commutator 15 between the connecting wires 21 supported by the hooking guide mechanism 31.

The hooking guide mechanism 31 is attached to the shaft 49 which moves up and down at the center thereof by fixing members 51 and 53 so as to be freely opened and closed. The shaft 49 is connected to the cylinder 55. The shaft 49 is provided with an annular projection 49A.
Are fitted into recesses 33 </ b> A provided inside each guide plate 33. When the shaft 49 is moved up and down by the cylinder 55, the guide plates 33 slide along the inner wall surfaces of the fixing members 51 and 53 in an arc shape, and open and close as shown by arrows.

The hooking guide mechanism 31 is connected to a support plate 57 via a collar 59 so as to move up and down. The hooking guide mechanism 31 is configured to move up and down by a cylinder or the like.

The fusing mechanism 37 allows the fusing electrodes 39, 39 to be moved via the cylinder 41, and also allows the receiving member 43 to be moved by the cylinder 45 to a position facing the fusing electrodes 39, 39. It is constituted by arranging. Both are mounted on a plate 47 which is rotated by a rotation mechanism. The plate 47 and the transfer jig 11
And do not go around.

FIG. 20 shows the details of a fusing device for fusing a portion where the connecting wire 21 is locked to the hook 17. The connecting wire is inserted with the hook 17 of the commutator 15 inserted between the connecting wires 21. It has a fusing mechanism 37 provided with a fusing electrode 39 for fusing the 21 and the hook 17.

In the amateur fusing device for a flat motor constructed as described above, first, the coil element 19 is set at a predetermined position of the device in a state where the coil element 19 is set up radially so that the connection line 21 is located on the center side. The accommodated transport jig 11 is arranged.

Thereafter, the hooking guide mechanism 31 having a plurality of guide plates 33 arranged radially descends in an open state as shown by the two-dot chain line, and
Is inserted between the coil elements 19 in an open state. Next, the shaft 49 moves up, and accordingly, each guide plate 33 rises while closing as shown by the arrow, and each connection line 21 is supported inside the guide plate 33.

Thereafter, the commutator guide mechanism 35 is raised, and the hook 17 of the commutator 15 contacts the lower end of each guide plate 33. Next, the support plate 57 and the commutator guide mechanism 35 are raised, and the connection wire 21 supported by the hooking guide mechanism 31 is connected to the commutator 15.
When the hook 17 is inserted, only the commutator guide mechanism 35 stops, and the hook 17 and the connection line 21 are brought into contact. On the other hand, the support plate 57 stops after the lower end of each guide plate 33 has risen to a position where it does not interfere with the fusing mechanism 37.

Thereafter, the cylinders 41 and 45 of the fusing mechanism 37 are actuated to be sandwiched between the fusing electrodes 39 and 39 and the receiving member 43. In this state, for example, 500 to 2000
A, a current of several volts or less is passed to fuse the connection line 21 and the hook 17.

After that, in this state, each of the coil elements 19 is gripped and lifted, and then simultaneously tilted down in the same direction. As shown in FIG. Are arranged in a partially overlapped state at a predetermined angle.

In the fusing method for an amateur for a flat motor configured as described above, the coil element 19 is arranged in a state of being erected radially so that the connection line 21 is located on the center side. At the center, the commutator 15 is inserted upward from below so that the hook 17 opens upward, and the connection wire 21 is locked to the hook 17. In this state, the hook 17 and the connection wire 21 Fusing, one coil wire e
Coil elements 19 continuously formed by
To the hook 17 of the commutator 15,
Fusing can be performed quickly and reliably.

[0022]

However, in the above-mentioned prior application, the position of the connection line 21 is regulated by the hooking guide mechanism 31, and the connection line 21 is locked to the hook 17 by pushing up the commutator 15 from below. Therefore, as shown in FIG. 22, the coil element 19 is also pulled up at the same time, and the setting position of the coil element 19 on the transfer jig 11 changes. Therefore, there is a problem that a failure occurs in a post-process (amateur assembly).

In the prior application, when the connection wire 21 is locked to the hook 17 of the commutator 15, the connection wires 21 come into contact with each other near the hook 17 as shown in FIG. There was a risk of damaging the adjacent connection line 21.

Therefore, in order to solve such a problem,
It is conceivable to form the connection line 21 into an acute angle. In this case, it is necessary to further push up the commutator 15 with respect to the coil element 19.

However, when the commutator 15 is further raised, there is a problem that the coil wire e of the coil element 19 may be uneven. The present invention has been made to solve such a problem, and its purpose is to prevent displacement of the coil element during hooking,
An object of the present invention is to provide a method and an apparatus for fusing an amateur for a flat motor, which can prevent a defect such as a short-circuit disconnection at the time of fusing and prevent a coil wire from being broken.

[0026]

According to a first aspect of the present invention, a plurality of coil elements formed continuously by one coil wire are arranged in a state of being erected radially such that the connection line is located on the center side. After that, the upper part is pressed with a coil presser, and a commutator is inserted into the center thereof from the lower side to the upper side so that the hook is opened upward, and the connection wire of the coil element is locked to the hook. A wire arrangement guide is inserted between the connection wires locked by the hooks to form a gap between adjacent connection wires, and the hooks and the connection wires are fused.

[0027] A second aspect of the present invention provides a transfer jig for accommodating a plurality of coil elements formed continuously by one coil wire in a state of being erected radially so that a connection line thereof is located on the center side, and A plurality of guide plates arranged in the same direction, each guide plate being inserted between connection lines of the coil elements, and a hooking guide mechanism capable of moving up and down, and mounted on the plurality of coil elements housed in the transport jig. A vertically movable coil holder and a commutator guide mechanism for inserting a commutator hook between the connection lines supported by the hooking guide mechanism, and a commutator hook inserted between the connection lines The wire arrangement guide that can be moved up and down to fit the separation claw in the inserted state, and the connection line and the hook are inserted with the hook of the commutator inserted between the connection lines. Those having a fusing mechanism for managing.

[0028]

According to the first and second aspects of the present invention, first, a plurality of coil elements continuously formed by one coil wire are arranged in a state of being erected radially so that the connection line is on the center side. I do. Next, the upper part is held down by a coil holder, and in this state, a commutator is inserted into the center of the commutator from the bottom upward, with the hooks opening upward, and together with the insertion of the commutator. The connection wire of the coil element is stopped by the hook while the connection wire of the coil element to be moved is held by the coil presser. Thereafter, the wire arrangement guide is inserted between the connection lines locked by the hooks, and a gap is formed between adjacent connection lines. Then, after raising the hooking guide mechanism, the coil presser, and the electric wire rearranging guide, the hook and the connection wire are fused.

[0029]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 8 show a method of fusing an amateur for a flat motor according to an embodiment of the present invention.
FIG. 11 shows an apparatus having a hooking guide mechanism and a commutator guide mechanism. The device provided with the hooking guide mechanism and the commutator guide mechanism shown in FIGS. 10 and 11 is characterized in that the coil holding device 61 and the wire arrangement guide 65 are provided in the device of the prior application shown in FIG. The other configuration is the same as the prior application. Therefore, the same elements as those of the prior application are denoted by the same reference numerals, and description thereof will be omitted.

First, as shown in FIGS. 1 and 10, a plurality of coil elements 19 continuously formed by one coil wire e are erected radially so that the connection line 21 is on the center side. It is arranged on the transport jig 11 in the state. The details of the plurality of coil elements 19 and the transfer jig 11 are shown in FIG.
7 and FIG.

Next, as shown in FIG. 1 and FIG. 10, the cylinder 55 is pushed out, and each guide plate 33 of the hooking guide mechanism 31 is lowered in a spread state as shown by a two-dot chain line. Then, at the top of the connection line 21, the cylinder 5
5 is drawn down and narrowed toward the center so that the guide plate 33 can be inserted into the connection line 21.

Next, as shown in FIGS. 2 and 10, the guide plate 33 is lowered and inserted into the connection line 21. Thereby, the positions of the connection wires 21 of the plurality of coil elements 19 are regulated.

Next, as shown in FIG. 3 and FIG. 10, a coil holder 61 is placed on the coil element 19. As shown in FIG. 11, the coil retainer 61 is formed by assembling two semicircular members 61A and 61B.
Each semicircular member 61A, 61B is provided with a concave portion 61C, 61D that allows opening and closing of each guide plate 33.
The inner diameter of each of the semicircular members 61A and 61B is larger than the outer diameter of the commutator 15 and is large enough to fit a wire arrangement guide 65 described later.

The coil retainer 61 is configured to be vertically movable by an actuator such as a cylinder (not shown). Thereby, the transfer jig 11
The position of the coil element 19 is determined.

In this state, the commutator 15 is inserted into the center of the commutator 15 from the bottom upward by the commutator guide mechanism 35 so that the hook 17 opens upward.

As the commutator 15 is raised, the hooking guide mechanism 31 is raised. At this time, as shown in FIG. 4, the connection wire 21 of the coil element 19, which is to move together with the insertion of the commutator 15, is restricted by the holding claw 63 of the coil holding 61, and the connection wire 21 is connected to the hook 17. Is locked.

Thereafter, as shown in FIGS. 5, 6, and 11, the separation piece 67 of the electric wire arrangement guide 65 is inserted between the connection wires 21 locked by the hooks 17, and as shown in FIG.
A gap L is formed between adjacent connection lines 21.

The electric wire arrangement guide 65 includes a coil press 61
A plurality of separation claws 67 to be fitted between the connection wires 21 are formed by providing a large number of vertical slits in a cylindrical body having a smaller diameter than the holding claws 63.

The electric wire arrangement guide 65 is configured to be vertically movable by an operating device such as a cylinder (not shown). Incidentally, the coil retainer 61 and the wire arrangement guide 65 may be connected so as to be relatively movable by a vertically movable cylinder.

Next, after raising the hooking guide mechanism 31, the electric wire arrangement guide 65, and the coil retainer 61,
As shown in FIG. 9, the fusing mechanism 37 is operated to be sandwiched between the fusing electrodes 39, 39 and a receiving member 43 (not shown). The line 21 and the hook 17 are fused. The details of the fusing mechanism are as shown in FIG.

As described above, in the present embodiment, a plurality of coil elements 19 formed continuously by one coil wire e are erected radially so that the connection line 21 is on the center side. Then, the upper part is pressed by the coil presser 61, and in this state, the commutator 15 is inserted into the center thereof from the lower side to the upper side so that the hook 17 is opened upward, and the hook is inserted. 17, the connection wire 21 of the coil element 19 is locked,
The wire arrangement guide 65 is inserted between the connection wires 21 locked by the wire 7 to form a gap L between the adjacent connection wires 21. In this state, the hook 17 and the connection wire 21 are fused, so that There is an advantage that the connecting wires 21 of a plurality of coil elements 19 formed continuously by one coil wire e can be quickly and reliably fused to the hooks 17 of the commutator 19.

When the position of the connection wire 21 is regulated by the hooking guide mechanism 31 and the commutator 15 is pushed up from below, the connection wire 21 is locked to the hook 17. , The coil element 19 is not simultaneously pulled up.

Therefore, the problem that the set position of the coil element 19 on the transfer jig 11 does not change and the post-process (the assembling of the amateur) causes a defect can be solved. After the connection wire 21 is locked to the hook 17 of the commutator 15,
Since the wire arrangement guide 65 is inserted between the connection wires 21 to form a gap L between the adjacent connection wires 21, the connection wires 21 do not come into contact with each other near the hook 17, and the adjacent connection wires 21 during fusing. There is no risk of damaging the connection line 21.

Therefore, the problem that the coil wire e of the coil element 19 is uneven can be solved.

[0045]

As described above, according to the first and second aspects of the present invention, a plurality of coil elements formed continuously by one coil wire are radiated so that the connection line is located on the center side. After arranging the commutator, insert the commutator in the center from the bottom upwards with the hook open upward. It is possible to lock the connection wire of the coil element to the hook while holding the connection wire of the coil element that is going to move to the hook, and the coil element is not pulled up at the same time. The setting position of the coil element does not change,
Defects in the post-process (amateur assembly) can be prevented. Then, after that, the wire arrangement guide is inserted between the connection lines locked by the hooks, a gap is formed between the adjacent connection lines, and the hooks and the connection lines are fused, so that each connection line is hooked. Are not in contact with each other in the vicinity, so that there is no danger of damaging the adjacent connection line during fusing, and as a result, there is no problem that the coil wire of the coil element is uneven.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a state in which a guide plate is lowered on a transport jig on which a plurality of coil elements are mounted.

FIG. 2 is an explanatory view showing a state where a guide plate is inserted between connection lines of a coil element.

FIG. 3 places a coil retainer on a coil element,
It is explanatory drawing which shows the state which raised the commutator.

FIG. 4 is an explanatory view showing a state in which a commutator is raised while locking a connection wire of a coil element.

FIG. 5 is an explanatory view showing a state in which the wire arrangement guide is fitted between connection wires locked by hooks.

FIG. 6 is a side view of the commutator, showing a main part of FIG. 5 cut away.

FIG. 7 is an enlarged side view showing a main part of FIG. 5;

FIG. 8 is a side view showing a commutator in which a gap L is formed between connection lines.

FIG. 9 is an explanatory diagram showing a state in which a connection wire of a coil element is fused to a hook of a commutator.

FIG. 10 is a longitudinal sectional view showing an apparatus according to claim 2, comprising a hooking guide mechanism and a commutator mechanism.

11 is a transverse sectional view taken along the line AA of FIG.

FIG. 12 is an explanatory view showing a conventional coil element formed continuously.

FIG. 13 is a top view showing a state where the coil element of FIG. 12 is arranged outside a commutator.

FIG. 14 is a side view showing a state in which a winding jig is fitted on a shaft in a conventional method.

FIG. 15 is an explanatory diagram showing a state in which a guide plate is fitted between connection lines in the prior application method.

FIG. 16 is an explanatory diagram showing a state in which a connection wire of a coil element is fused to a hook of a commutator in the prior application method.

FIG. 17 is a perspective view showing a transportation jig of the prior application.

FIG. 18 is an explanatory view showing the holding mechanism of FIG. 17;

FIG. 19 is a longitudinal sectional view of the device in the prior application showing a hooking guide mechanism and a commutator mechanism.

FIG. 20 is a side view showing a fusing mechanism of the prior application.

FIG. 21 is an explanatory diagram showing a state in which a coil element is folded down in the prior application method.

FIG. 22 is an explanatory view showing a state in which the coil element is lifted when the connection wire of the coil element is locked to the hook while the commutator is being lifted in the prior application method.

FIG. 23 is an explanatory diagram showing connection lines of a coil element locked on a hook of a commutator in the prior application method.

[Explanation of symbols]

 9 Shaft 11 Transport jig 15 Commutator 17 Hook 19 Coil element 21 Connection line 31 Hooking guide mechanism 33 Guide plate 35 Commutator guide mechanism 37 Fusing mechanism 61 Coil retainer 65 Electric wire arrangement guide e Coil wire L gap

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H02K 15/02 H02K 13/04

Claims (2)

(57) [Claims] 1. A plurality of coil elements (19) continuously formed by a single coil wire (e) are arranged in a radially upright state such that a connection line (21) thereof is on the center side. Thereafter, the upper part thereof is pressed by a coil presser (61), and a commutator (15) is inserted into the center thereof from the lower side to the upper side so that the hook (17) opens upward, and the hook (17) is inserted. After connecting the connecting wire (21) of the coil element (19) to the hook (1),
The wire arrangement guide (65) is inserted between the connection wires (21) locked to 7) to form a gap (L) between the adjacent connection wires (21), and the hook (17) and the connection wire ( 21) A method of fusing an amateur for a flat motor, characterized by fusing the above. 2. A plurality of coil elements (19) continuously formed by one coil wire (e) are accommodated in a state of being erected radially so that the connection wire (21) is located on the center side. It comprises a transport jig (11) and a plurality of guide plates (33) arranged radially, and each guide plate (33) is inserted between connection lines (21) of the coil element (19) so as to be vertically movable. A hooking guide mechanism (31) and a coil holder (6) which can be lifted and lowered on a plurality of coil elements (19) housed in the transfer jig (11).
1) a vertically movable commutator guide mechanism (35) for inserting a hook (17) of a commutator (15) between connection lines (21) supported by the hooking guide mechanism (31); With the hook (17) of the commutator (15) inserted between the wires (21), the separable claw (67) is inserted into the liftable wire arrangement guide (6).
5) and the commutator (1) between the connection line (21).
5) Connecting wire (21) with hook (17) inserted
An amateur fusing device for a flat motor, comprising: a fusing mechanism (37) for fusing a hook and a hook (17).