JP2009207278A - Method for manufacturing stator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a stator with excellent maintainability, and preventing an edge portion of a laminated steel plate from being rubbed against a positioning pin when a stator member having the laminated steel plate is mounted on a molding. <P>SOLUTION: The method includes: a first step of inserting a stator member 10 gripped with grip hands 14a, 14b into a positioning pin 12 smaller in diameter at a front end side than that at a root side and protruding to a movable mold 15 from a stationary mold 11, which are separating from each other in a horizontal direction with transverse prestress; a second step of moving the laminated steel plate 8 of the stator member 10 into contact with the stationary mold 11 by the positioning pin 12 that is moving means after the grip hands 14a, 14b retreat; and a third step of separating the stator 9 from the stationary mold 11 by a push-out pin 13 after resin molding and gripped by the grip hands 14a, 14b and taking out the stator from the positioning pin 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a stator manufacturing method for manufacturing a stator by inserting a stator member having a laminated steel sheet into a forming machine having a fixed mold and a movable mold, and then performing resin molding.

As a mold for resin-molding the stator of an automobile motor, since the stator member is as heavy as 7 to 8 kg, a fixed mold / movable mold with a vertical mold that moves the movable mold in a direction perpendicular to the fixed mold is used. Has been. An example of the mold structure is shown in FIG. In the case of the clamped mold, since it is difficult to handle the stator member automatically, the laminated steel sheet 104 and the winding portion 105 constituting the stator member are attached to the fixed mold 101 by hand. And the 1st movable mold | type 102 and the 2nd movable mold | type 103 move, a laminated steel plate 104 is inserted | pinched with the fixed mold | type 101, and a cavity is comprised. Then, molding is performed by injecting resin into the cavity.
Here, the movable mold is separated into the first movable mold 102 and the second movable mold 103, while the resin injection direction of the mold is the horizontal direction, while the resin injection into the cavity in the mold This is because the direction is the vertical direction, which is necessary for removing the spool which is a passage for the resin.
Patent Document 1 describes a technique for positioning a stator core in a stationary mold / movable mold using a positioning pin or an insert tap with respect to resin molding of a stator, using positioning pins and insert taps.

However, in a stator manufacturing method in which a stator member having a laminated steel plate is inserted into a molding machine having a fixed mold and a movable mold and resin molding is performed, in terms of mold maintenance, a lateral clamping mold is used. It is more advantageous than the clamp type.
In particular, when molding waste or the like remains, in the clamping mold, since molding waste remains in either the fixed mold or the movable mold, there is a concern that it may adversely affect subsequent molding. On the other hand, in the case of a side-clamping die, since the molding waste falls spontaneously when the die is opened, there is no need for maintenance and it is suitable for automation.

Japanese Patent No. 2842624

However, when a lateral clamping die is used for resin molding of a stator of an automobile motor, there are the following problems.
That is, in the case of a laterally clamped die, when the stator member is attached to the die, or when the stator is removed after resin molding, the end of the laminated steel plate constituting the stator member may be rubbed up with the positioning pin. there were. When the end of the laminated steel plate is rolled up, the magnetic properties at the rolled up portion are different from those of other portions, and there is a problem that the performance of the stator is lowered.
In addition, if the stator member is carefully inserted so that the end of the laminated steel plate does not flutter, there is a problem that it takes time and the manufacturing efficiency is lowered.

  An object of the present invention is to provide a method for manufacturing a stator that is excellent in maintainability and that does not rub up the end portions of the laminated steel plates with the positioning pins when a stator member having the laminated steel plates is mounted on a mold. .

In order to achieve the above object, the stator manufacturing method of the present invention has the following configuration and operation.
(1) A stator manufacturing method in which a stator member having a laminated steel sheet is inserted into a molding machine having a fixed mold and a movable mold and resin molding is performed, and the fixed mold and the movable mold are separated in the horizontal direction. A first step of inserting a stator member gripped by the gripping means into a positioning pin that has a distal end smaller in diameter than the base side and protrudes from the fixed mold to the movable mold side, and the gripping means is retracted After that, the second step of moving the stator member to a position where it abuts against the fixed mold by the moving means, and after the resin molding, the stator is separated from the fixed mold by the extrusion pin, gripped by the gripping means, and taken out from the positioning pin. 3 steps.
(2) In the stator manufacturing method described in (1), the movable type performs the operation of the moving means.
(3) In the stator manufacturing method described in (1), the movement means is operated by moving a positioning pin.
(4) In the stator manufacturing method described in (3), the positioning pin has a stepped shape and has the function of the push pin.
(5) In the stator manufacturing method described in (3), an extrusion sleeve having a function of the extrusion pin is provided around the positioning pin.

(6) In a stator manufacturing method in which a stator member having a laminated steel plate and a winding portion is inserted into a molding machine having a fixed die and a movable die, and the winding portion is resin-molded to produce a stator. The machine is a horizontal clamping type molding machine in which the movable mold is movable in the horizontal direction. The first positioning hole provided in one of the fixed mold and the movable mold, the first positioning hole is inserted, and the tip side is Positioning pin provided with a smaller diameter than the base side, for positioning the stator member, a second positioning hole provided at a position of the stator member facing the first positioning hole, and the positioning pin moved along the first positioning hole Moving means, a pushing means for separating the resin-molded stator from the surface of the fixed mold or the movable mold, and the stator member or the stator are gripped and moved. Gripping means, and the gripping means moves the stator member near either the fixed type or the movable type, inserts the distal end side of the positioning pin into the second positioning hole, and positions the stator member. A first step of moving the pin along the pin toward the root side; and a moving means that pulls the positioning pin into which the stator member is inserted toward the root side to closely contact the stator member with the fixed die or the movable die. 2 steps, a third step in which the movable mold is moved toward the fixed mold to bring the fixed mold, the movable mold, and the stator member into close contact with each other, and the winding portion of the stator member is molded by resin molding; The fourth step of extruding the molded stator and separating the stator integrated with the positioning pin from the surface of the fixed or movable mold, and gripping the separated stator by the gripping means After, at the mobile unit, drawn toward the positioning pins on the base side, has a, a fifth step of pulling out the positioning pin from the stator.
(7) In the stator manufacturing method described in (6), an enlarged diameter step portion is provided on a base side of the positioning pin, and the enlarged diameter step portion is used as a second pushing means.
(8) In the stator manufacturing method described in (6), an extrusion sleeve is provided around the positioning pin, and the extrusion sleeve is used as second moving means for moving along the first positioning hole. .
(9) In a stator manufacturing method of manufacturing a stator by inserting a stator member having a laminated steel plate and a winding portion into a forming machine having a fixed mold and a movable mold, and molding the winding section by resin molding, Is a horizontal clamp type molding machine in which the movable mold is movable in the horizontal direction. The first positioning hole provided in one of the fixed mold and the movable mold, the first positioning hole is inserted, and the tip side is the root. Positioning pin for positioning the stator member, a second positioning hole provided at a position facing the first positioning hole of the stator member, and a pushing means for moving the stator member along the positioning pin And an extrusion means for separating the resin-molded stator from the surface of the fixed mold or movable mold, and a grip for gripping and moving the stator member or stator. And moving the stator member close to either the fixed type or the movable type by the gripping means, inserting the tip end side of the positioning pin into the second positioning hole, and using the stator member as the positioning pin. A first step of moving toward the base side along the second step, a second step of pressing the stator member toward the fixed mold or the movable mold by the pushing means, and a movement of the movable mold toward the fixed mold. The fixed mold, the movable mold, and the stator member are brought into close contact with each other, the third step of resin molding the winding portion of the stator member, and the extrusion unit extrude the stator after resin molding, and the stator integrated with the positioning pin A fourth step of separating the fixed or movable surface from the surface, holding the separated stator by the gripping means, pulling the positioning pin toward the base side, And having a, a fifth step of pulling out the positioning pin from the motor.
(10) In the stator manufacturing method described in (9), the movable mold is used as the pushing means, and the stator material is pushed toward the fixed mold by the movable mold, and the stator member and the fixed mold are formed. It is characterized by being in close contact.

Next, the operation and effect of the stator manufacturing method of the present invention having the above configuration will be described.
(1) According to the stator manufacturing method of the present invention, a fixed die and a movable die constitute a horizontal fastening die that is separated in the horizontal direction, and the tip side is formed with a smaller diameter than the base side and protrudes from the fixed die to the movable die side. A first step of inserting the stator member gripped by the gripping means into the positioning pin, a second step of moving the stator member to a position where it comes into contact with the fixed mold by the moving means after the gripping means is retracted, and after resin molding The third step of separating the stator from the fixed mold with the push pin, gripping with the gripping means, and taking out from the positioning pin, so that when the stator member is inserted into the fixed mold, the stator member is Since the position / attitude is guided and reaches the position where it comes into contact with the fixed mold, it is possible to avoid the end portion of the laminated steel plate constituting the stator member from rubbing and rolling up.
As a result, it is not necessary to consider the speed at the time of contact and separation with the fixing member for preventing the rolled up of the laminated steel sheets, so that the stator member can be brought into contact with or separated from the fixing member with a short tact time. it can.
(2) Further, since the movable type performs the operation of the moving means, no special moving means is required, so that the apparatus can be made compact and the cost can be reduced.

(3) Further, when the movement of the moving means is performed by moving the positioning pin, the following advantages are obtained.
When pushing the stator member with a pusher, it is necessary to devise the action point of the pusher so as not to generate a moment that tilts the stator member with respect to the positioning pin. There is a problem that the equipment becomes larger and the cost increases. In addition, when pressing with a movable mold, the mold clamping is completed at the same time as the stator member comes into contact with the fixed mold. Therefore, if the stator member is not in close contact with the fixed mold simultaneously with the contact, the mold clamping force is momentarily biased. There has been a problem that accuracy restrictions become large.
On the other hand, by pulling the stator member before the mold clamping with the positioning pin as a movable type, when the mold clamping is completed, the stator member can be securely brought into close contact with the fixed mold, and the mold clamping force is applied to the stator member. Can be evenly loaded.

(4) Also, in (3), since the positioning pin has a stepped shape and has the function of the push pin, it is possible to add an extrusion point without adding a new drive mechanism. It is possible to stably push out the stator member by increasing the number of points of extrusion.
(5) In addition, in (3), since there is an extrusion sleeve having the function of the extrusion pin around the positioning pin, the stator member is moved in a direction in which the stator member is detached from the positioning pin when the stator member is pushed out. Therefore, it is not necessary to strongly pull out the stator member by the gripping means, and the possibility of the stator member and the positioning pin being gnawed at the time of removal can be eliminated.

Hereinafter, an example of an embodiment embodying a stator manufacturing method according to the present invention will be described in detail with reference to the drawings.
(First embodiment)
1 to 6 show a first embodiment of a stator manufacturing method. FIG. 3 shows a front view of the fixed mold 11 viewed from the movable mold side. FIG. 5 is a cross-sectional view taken along the line AB of FIG.
As shown in FIG. 3, the fixed mold 11 is a plate member having a substantially square shape in plan view, and a disk-like protruding member 31 is fixedly provided at the center thereof. An annular groove 32 is provided around the protruding member 31. Extrusion holes 33 (12 are shown in FIG. 3) are provided at the bottom of the groove 32 at substantially equal intervals in the circumferential direction. In addition, positioning holes 34 (three are shown in FIG. 3) are provided at substantially equal intervals in the circumferential direction at the radially outer position of the groove 32. Here, the protruding member 31 and the fixed mold 11 may be provided integrally.
The positioning pins 12 are slidably inserted in the positioning holes 34, respectively. Further, the extrusion pins 13 are inserted into the respective extrusion holes 33 so as to be able to protrude and retract with respect to the grooves 32.
FIG. 1 shows a process of inserting the stator member 10 into the fixed mold 11. The stator member 10 includes a laminated steel plate 8 constituting a stator core, a winding part 7 in which a conductive wire is wound around a tooth part thereof, and a bus bar (not shown). A hole 41 is provided in the center of the stator member 10, and the protruding member 31 is fitted into the hole 41. Further, the protruding portion 7 a on the fixed mold side (left side in FIG. 1) in the winding portion 7 is loosely inserted into the groove 32. Further, a positioning hole 42 is provided at a position facing the positioning hole 34 of the fixed mold 11 at the peripheral edge of the stator member 10. The sum of the thickness of the laminated steel plate 8 and the height of the protruding portion 7 b on the movable mold side (the right side in FIG. 1) in the winding portion 7 is adjusted to be slightly larger than the thickness of the protruding member 31.
Mounting of the stator member 10 to the fixed mold 11 is performed by a pair of gripping hands 14 a and 14 b of the detaching machine 14. As the detaching machine 14, for example, a robot having 6 joints is used.
On the other hand, as shown in FIG. 5, the movable mold 15 has a cavity portion 17 therein. The cavity portion 17 has a shape and a size that completely accommodates the protruding portion 7b on the movable mold side (right side in FIG. 5) of the winding portion 7 and the movable mold side portion 31a of the protruding member 31. Resin injection holes 16, 16 are provided in communication with the storage portion 17 b of the protruding portion 7 b in the cavity portion 17. Further, a positioning hole 18 is provided at a position facing the positioning hole 42 of the stator member 10 at the peripheral edge of the movable die 15.

The stator member 10 is gripped by the pair of gripping hands 14 a and 14 b of the detaching machine 14 outside the mold, and the three positioning holes 42 formed in the stator member 10 are inserted into the three positioning pins 12. As described above, the stator member 10 is moved in parallel with the axis of the positioning pin 12. At this time, the positioning pin 12 is projected in the movable direction by a distance slightly longer than the width of the gripping hand 14a (the length of the positioning pin in the axial center direction). The width of the gripping hand 14a is configured to be shorter than the width of the gripping hand 14b.
The positioning pin 12 includes a positioning portion 12b on the base side for positioning, and a tapered portion 12a on the leading end side for guiding. Here, in FIG. 1, the boundary line between the positioning portion 12 b and the tapered portion 12 a is located on the right side of the center line C of the thickness portion of the laminated steel plate 8 of the stator member 10. That is, the position of the center of gravity of the stator member 10 is located on the positioning portion 12b where the taper has not yet started.
Moreover, although the weight of the stator member 10 is 7-8 kg, the holding hands 14a and 14b hold | maintain about the weight. Since the robot hand having six joints has a degree of freedom, even if the positioning hole 10a of the stator member 10 and the positioning pin 12 are slightly shifted, the gripping hand 14 moves following the positioning pin 12. The laminated steel plate 8 of the stator member 10 and the positioning pin 12 are not rubbed strongly.

As shown in FIG. 1, the detaching machine 14 inserts and moves the stator member 10 into the positioning pins 12 to a position separated by a distance slightly longer than the width of the gripping hand 14 a. Then, the gripping hands 14a and 14b release the stator member 10 at that position, and the gripping hands 14a and 14b are retracted out of the mold to the position of the detaching machine 14 shown in FIG. Since the center of gravity of the stator member 10 is located at the positioning portion 12b of the positioning pin 12, the stator member 10 does not tilt when the gripping hands 14a and 14b release the stator member 10.
Next, with the three positioning pins 12 holding the stator member 10, the stator member 10 is pulled in the direction of the fixed mold 11 to a position where the stator member 10 is in close contact with the surface of the fixed mold 11. As a result, as shown in FIG. 2, the laminated steel plate 8 of the stator member 10 and the fixed mold 11 are brought into close contact with each other. When the stator member 10 is moved, the stator member 10 and the positioning pin 12 move together, so that the laminated steel plate 8 of the stator member 10 is not rubbed and rolled by the positioning pin 12.

The whole of the fixed die 11, the movable die 15, and the stator member 10 is a sectional view and shown in FIG.
Next, the movable mold 15 moves to perform a mold clamping operation. Thus, a cavity that is a space surrounded by the laminated steel plate 8 of the fixed die 11, the movable die 15, and the stator member 10 is formed. Then, resin is injected into the cavity through the resin injection hole 16, and resin molding is performed on the winding portion 7 of the stator member 10.
FIG. 6 shows a state where the resin mold forming is completed and the movable mold 15 is separated from the fixed mold 11.
Next, the resin-molded stator 9 is separated from the fixed mold 11 by twelve extrusion pins 13. Although the stator 9 is moved forward (movable die 15 side) by the extrusion by the push pin 13, the positioning pin 12 is also slid and moved integrally with the stator 9. That is, since the positioning pin 12 moves in conjunction with the push pin 13, the positioning hole of the laminated steel plate 8 of the stator 9 and the positioning pin 42 do not rub.
After the stator 9 is detached from the fixed mold 11 by the push pin 13, the detacher 14 grips the stator 9 by the gripping hands 14a and 14b and is parallel to the axial direction of the positioning pin 12 and in the movable mold direction. The stator 9 is taken out by moving.

As described above in detail, according to the stator manufacturing method of the first embodiment, the fixed die 11 and the movable die 15 constitute a horizontal fastening die that is separated in the horizontal direction, and the tip side is formed with a smaller diameter than the root side. The first step of inserting the stator member 10 gripped by the gripping hands 14a and 14b into the positioning pin 12 protruding from the fixed mold to the movable mold side, and the positioning pins 12 as moving means after the gripping hands 14a and 14b are retracted The second step of moving the laminated steel plate 8 of the stator member 10 to a position where it abuts against the fixed mold 11 and after resin molding, the stator 9 is separated from the fixed mold 11 by the extrusion pin 13 and is gripped by the gripping hands 14a and 14b. Then, when the stator member 10 is inserted into the fixed mold 11, the stator member 10 is laminated. Plate 8, while being guided position and posture by the positioning pins 12, to reach a position where it comes into contact with the fixed mold 11, can be avoided that the end portion of the laminated steel plate 8 constituting the stator member 10 is plated with rubbing.
The stator member 10 can be brought into contact with or separated from the fixed member 11 with a short tact time.

In this embodiment, since the movement of the moving means is performed by moving the positioning pin 12, the following advantages are obtained.
When the stator member 10 is pushed in with a pusher, it is necessary to devise the pusher action point so that a moment that tilts the stator member 10 with respect to the positioning pin 12 is not generated. There is a problem that the size is increased, the size of the equipment is increased, and the cost is increased. Further, when the movable die 15 is pushed in, the laminated steel plate 8 of the stator member 10 comes into contact with the fixed die 11 and the mold clamping is completed at the same time. Otherwise, there is a concern that the mold clamping force is momentarily biased and there is a problem that the accuracy restriction becomes large.
In contrast, by pulling the stator member 10 before the mold clamping with the positioning pin 12 being movable, the laminated steel plate 8 of the stator member 10 can be securely brought into close contact with the fixed mold 11 when the mold clamping is completed. The fastening force can be uniformly applied to the stator member 10. As a result, there is no possibility that an excessive load is applied to a part of the stator member 10 during mold clamping, and the resin filling property to the cavity at the time of resin molding becomes more uniform. As a result, it is possible to obtain the stator 9 with good quality with high accuracy and high yield.

(Second embodiment)
Since the basic configuration of the second embodiment is the same as that of the first embodiment, the same components are given the same numbers, and the description thereof is omitted, and only the differences are described. 7 to 9 show a stator manufacturing method according to the second embodiment.
FIG. 7 shows a process of inserting the stator member 10 into the fixed mold 11. FIG. 8 shows a state in which the laminated steel plate 8 of the stator member 10 and the fixed mold 11 are in close contact with each other. FIG. 9 shows a state where the resin mold forming is completed and the movable mold 15 is detached from the fixed mold 11.
The positioning pin 22 of the second embodiment has a large-diameter portion 22c that is a sliding portion with the mold (fixed die 11), a smaller diameter than the large-diameter portion 22c, and a positioning hole 42 of the laminated steel plate 8 of the stator member 10 The positioning part 22b and the taper part 22a which fit and position the stator member 10 are provided.

The operation of the positioning pin 22 will be described. As shown in FIG. 7, when the positioning pin 22 is inserted into the positioning hole 42 of the stator member 10 gripped by the gripping hands 14a and 14b, the laminated steel plate 8 of the stator member 10 is connected to the large diameter portion 22c and the positioning portion 22b. The gripping hands 14a and 14b are released from the gripping state in the contacted state.
Thereby, the stator member 10 can be accurately positioned with respect to the positioning pin 22. Next, as shown in FIG. 8, the positioning pin 22 is moved in the direction of the fixed mold 11 so that the step end surface of the large diameter portion 22c and the surface of the fixed mold 11 (surface on the movable mold side) coincide. Thereby, the laminated steel plate 8 of the stator member 10 contacts the surface of the fixed mold 11.

Next, resin molding is performed. Then, as shown in FIG. 9, when the stator 9 is separated from the fixed mold 11 after the resin mold molding is completed, the twelve extruding pins 13 are simultaneously projected to push out the stator 9. At this time, since the positioning pin 22 and the push pin 13 move in conjunction with each other, the positioning hole of the laminated steel plate 8 of the stator 9 and the positioning pin 12 are not rubbed.
In the second embodiment, the stepped end surface of the large-diameter portion 22c, which is the stepped shape of the three positioning pins 22, pushes out the stator 9 simultaneously with the push-out pin 13, so that the push-out point can be added without adding a new drive mechanism. Therefore, it is possible to stably push out the stator 9 by increasing the number of points of extrusion.

(Third embodiment)
Since the basic configuration of the third embodiment is the same as that of the first embodiment, the same components are denoted by the same reference numerals, description thereof is omitted, and only differences are described. 10 to 12 show a stator manufacturing method according to the third embodiment. FIG. 10 shows a process of inserting the stator member 10 into the fixed mold 11. FIG. 11 shows a state in which the laminated steel plate 8 of the stator member 10 and the fixed mold 11 are in close contact with each other. FIG. 12 shows a state in which the resin mold forming is completed and the movable mold 15 is detached from the fixed mold 11.
The positioning pin 12 of the third embodiment has the same shape as the positioning pin 12 of the first embodiment. The difference is that an extrusion sleeve 23 is slidably held on the outer periphery of the positioning pin 12. The operation of the extrusion sleeve 23 will be described.
The operations in FIGS. 10 and 11 are the same as those in the first embodiment. As shown in FIG. 12, when the 12 extrusion pins 13 separate the stator 9 from the fixed mold 11 after the resin molding is finished, only the three extrusion sleeves 23 are extruded in the same timing, thereby extruding. Thus, the stator member 9 can be stably pushed out. However, a mechanism for driving the extrusion sleeve 23 is required separately, and the second embodiment is superior in view of the complexity of the apparatus.

(Fourth embodiment)
Since the basic configuration of the fourth embodiment is the same as that of the first embodiment, the same components are denoted by the same reference numerals, description thereof is omitted, and only differences are described. 13 to 15 show a stator manufacturing method according to the fourth embodiment. FIG. 13 shows a process of inserting the stator member 10 into the fixed mold 11. FIG. 14 shows a state in which the laminated steel plate 8 of the stator member 10 and the fixed mold 11 are in close contact with each other. FIG. 15 shows a state where the resin mold is completed and the movable mold 15 is detached from the fixed mold 11.
The positioning pin 24 of the fourth embodiment has the same shape as the positioning pin 12 of the first embodiment, but is fixed to the fixed mold 11 without sliding.

In FIG. 13, the gripping hands 14 a and 14 b insert the laminated steel plate 8 of the stator member 10 into the positioning pins 24 as in the first embodiment. Next, as shown in FIG. 14, the pusher pusher 25 constituted by a pneumatic cylinder or the like pushes the end surface of the stator member 10, and the laminated steel plate 8 of the stator member 10 is shown in FIG. 14 along the positioning pins 24. In such a manner, it is pushed to a position where it comes into contact with the fixed mold 11. Next, the movable mold 15 is moved to inject mold resin into the formed cavity. After the resin molding is completed, the twelve extruding pins 13 push the stator 9 away from the fixed mold 11. After the movable mold 15 is separated, as shown in FIG. 15, the gripping hands 14a and 14b grip the stator 9 and move it to the outside.
Compared with the first embodiment, the fourth embodiment has a drawback that the positioning hole 42 of the laminated steel plate 8 of the stator member 10 is slightly rubbed with the positioning pin 24, but the configuration is simple.

(5th Example)
Since the basic configuration of the fifth embodiment is the same as that of the first embodiment, the same components are denoted by the same reference numerals, description thereof is omitted, and only differences are described. 16 to 18 show a stator manufacturing method according to the fifth embodiment. FIG. 16 shows a process of inserting the stator member 10 into the fixed mold 11. FIG. 17 shows a state in which the laminated steel plate 8 of the stator member 10 and the fixed mold 11 are in close contact with each other. FIG. 18 shows a state where the resin mold forming is completed and the movable mold 15 is detached from the fixed mold 11.
The fifth embodiment is different from the fourth embodiment in that the movable mold 26 directly pushes the end surface of the stator member 10 without providing the pusher 25 for pushing, and the laminated steel plate 8 of the stator member 10 is used as the positioning pin 24. Along with this, as shown in FIG.
According to the fifth embodiment, the pusher 25 for pushing in is not required as compared with the fourth embodiment, so that the equipment can be simplified.

In addition, this invention is not limited to the said embodiment, A part of structure can also be changed suitably and implemented in the range which does not deviate from the meaning of invention.
For example, in the present embodiment, the case where the positioning hole 42 of the stator member 10 is fitted to the positioning pin 12 provided in the fixed mold 11 has been described, but the positioning pin 12 is provided in the movable mold 15 and the positioning of the movable mold 15 is performed. The same applies to the case where the positioning hole 42 of the stator member 10 is fitted to the pin 12.

It is FIG. 1 which shows the process of the stator manufacturing method of 1st Example of this invention. It is FIG. 2 which shows the process of 1st Example. 2 is a front view of a fixed mold 11. FIG. FIG. 3 is a front view showing a state in which a stator member 10 is mounted on a fixed mold 11. 2 is a cross-sectional view showing the overall configuration of a fixed mold 11 and a movable mold 15. It is FIG. 3 which shows the process of 1st Example. It is FIG. 1 which shows the process of the stator manufacturing method of 2nd Example. It is FIG. 2 which shows the process of 2nd Example. It is FIG. 3 which shows the process of 2nd Example. It is FIG. 1 which shows the process of the stator manufacturing method of 3rd Example. It is FIG. 2 which shows the process of 3rd Example. It is FIG. 3 which shows the process of 3rd Example. It is FIG. 1 which shows the process of the stator manufacturing method of 4th Example. It is FIG. 2 which shows the process of 4th Example. It is FIG. 3 which shows the process of 4th Example. It is FIG. 1 which shows the process of the stator manufacturing method of 5th Example. It is FIG. 2 which shows the process of 5th Example. It is FIG. 3 which shows the process of 5th Example. It is a figure which shows the conventional stator manufacturing process.

Explanation of symbols

7 Winding part 8 Laminated steel sheet 9 Stator 10 Stator member 11 Fixed mold 12, 22, 24 Positioning pins 12a, 22a, 24a Tapered parts 12b, 22b, 24b Positioning part 22c Large diameter part 13 Extrusion pin 14 Desorption machine 14a, 14b Hand 15 movable type

Claims (10)

In a stator manufacturing method in which a stator member having a laminated steel plate is inserted into a molding machine having a fixed mold and a movable mold, and resin molding is performed,
The fixed mold and the movable mold constitute a horizontal fastening mold that separates in the horizontal direction,
A first step of inserting the stator member gripped by gripping means into a positioning pin having a distal end side formed smaller in diameter than the base side and projecting from the fixed mold side to the movable mold side;
A second step of moving the stator member to a position in contact with the fixed mold by the moving means after the gripping means is retracted;
After resin molding, a third step of separating the stator from the fixed mold with an extrusion pin, gripping with the gripping means, and taking out from the positioning pin;
The stator manufacturing method characterized by having. In the stator manufacturing method according to claim 1,
A stator manufacturing method, wherein the movable mold performs the operation of the moving means. In the stator manufacturing method according to claim 1,
A stator manufacturing method, wherein the movement means is operated by moving a positioning pin. In the stator manufacturing method according to claim 3,
A stator manufacturing method, wherein the positioning pin has a stepped shape and has the function of the push pin. In the stator manufacturing method according to claim 3,
A stator manufacturing method comprising an extrusion sleeve having a function of the extrusion pin around the positioning pin. In a stator manufacturing method for manufacturing a stator by inserting a stator member having a laminated steel plate and a winding portion into a molding machine having a fixed die and a movable die, and resin-molding the winding portion.
The molding machine is a horizontal clamping mold machine in which the movable mold is movable in the horizontal direction,
A first positioning hole provided in either the fixed mold or the movable mold;
A positioning pin that is inserted into the first positioning hole and has a distal end side having a smaller diameter than the base side, and for positioning the stator member;
A second positioning hole provided in a position of the stator member facing the first positioning hole;
Moving means for moving the positioning pin along the first positioning hole;
Extrusion means for separating the resin-molded stator from the surface of the fixed mold or the movable mold;
Gripping means for gripping and moving the stator member or the stator;
With
The gripping means moves the stator member close to either the fixed die or the movable die, inserts the tip end side of the positioning pin into the second positioning hole, and positions the stator member to the positioning member. A first step of moving along the pin toward the root side;
A second step of drawing the positioning pin into which the stator member is inserted toward the base side by the moving means, and bringing the stator member into close contact with the fixed mold or the movable mold;
A third step in which the movable mold is moved toward the fixed mold so that the fixed mold, the movable mold, and the stator member are in close contact, and the winding portion of the stator member is resin-molded;
A fourth step of extruding the stator after resin molding with the extrusion means, and separating the stator integrated with the positioning pin from the surface of the fixed mold or the movable mold;
A fifth step of gripping the spaced apart stator by the gripping means, then pulling the positioning pin toward the root side by the moving means, and pulling out the positioning pin from the stator;
The stator manufacturing method characterized by having. In the stator manufacturing method according to claim 6,
A stator manufacturing method, wherein an enlarged step portion is provided on a base side of the positioning pin, and the enlarged step portion is used as a second pushing means. In the stator manufacturing method according to claim 6,
A stator manufacturing method, wherein an extrusion sleeve is provided around the positioning pin, and the extrusion sleeve is used as second moving means for moving along the first positioning hole. In a stator manufacturing method for manufacturing a stator by inserting a stator member having a laminated steel plate and a winding portion into a molding machine having a fixed die and a movable die, and resin-molding the winding portion.
The molding machine is a horizontal clamping mold machine in which the movable mold is movable in the horizontal direction,
A first positioning hole provided in either the fixed mold or the movable mold;
A positioning pin that is inserted into the first positioning hole and has a distal end side having a smaller diameter than the base side, and for positioning the stator member;
A second positioning hole provided in a position of the stator member facing the first positioning hole;
Pushing means for moving the stator member along the positioning pins;
Extrusion means for separating the resin-molded stator from the surface of the fixed mold or the movable mold;
Gripping means for gripping and moving the stator member or the stator;
With
The gripping means moves the stator member close to either the fixed die or the movable die, inserts the tip end side of the positioning pin into the second positioning hole, and positions the stator member to the positioning member. A first step of moving along the pin toward the root side;
A second step of pressing the stator member toward the fixed mold or the movable mold with the pushing means;
A third step in which the movable mold is moved toward the fixed mold so that the fixed mold, the movable mold, and the stator member are in close contact, and the winding portion of the stator member is resin-molded;
A fourth step of extruding the stator after resin molding with the extrusion means, and separating the stator integrated with the positioning pin from the surface of the fixed mold or the movable mold;
A fifth step of gripping the spaced apart stator with the gripping means, pulling the positioning pin toward the base side, and pulling out the positioning pin from the stator;
The stator manufacturing method characterized by having. In the stator manufacturing method according to claim 9,
A stator manufacturing method, wherein the movable die is the pushing means, the stator material is pushed toward the fixed die by the movable die, and the stator member and the fixed die are brought into close contact with each other.

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