JP2018143034A - Manufacturing device for laminated iron core - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a laminated iron core at low cost and efficiently.SOLUTION: A manufacturing device for a laminated iron core comprises: a conveyance module configured to convey an iron core member in a predetermined direction; a placement stage which is positioned at a most upstream side in a direction where the iron core member is conveyed by the conveyance module, and on which a laminate is placed; a supply stage configured to supply an adhesive to the iron core member; a main lamination stage which is positioned at a most downstream side in the conveyance direction and on which the iron core member supplied with the adhesive is laminated; and a control unit. The conveyance module includes: first and second holders configured to hold the iron core member; a conveyer to which both the first and second holders are attached; and a drive mechanism which moves the conveyer in a horizontal direction and a vertical direction. The control unit controls the conveyance module and executes processing for successively mounting iron core members forming a top layer of the laminate that is placed on the placement stage, one by one with resect to each of stages.SELECTED DRAWING: Figure 8

Description

  The present disclosure relates to an apparatus for manufacturing a laminated iron core.

  Patent document 1 is disclosing the manufacturing method of a laminated iron core. In this method, an adhesive is applied to one surface of the metal plate while intermittently feeding the coil material, which is a strip-shaped metal plate (work plate) wound in a coil shape, from the uncoiler, and the metal plate Punching out a predetermined shape with a punch to form one punching member, and laminating the one punching member while adhering to another punching member already punched with an adhesive, Performed in the same mold.

  By the way, for the purpose of suppressing the wear of the punch and improving the punchability of the punching member, the coil material is applied with press working oil (also referred to as stamping oil; hereinafter simply referred to as “oil”). It is common. If the adhesive is applied to the metal plate in a state where the oil is still present and the punched members are to be bonded to each other, the adhesive performance of the adhesive is affected. Therefore, Patent Document 1 discloses that a hardening accelerator is added to oil, and the punching members are bonded together with an adhesive without removing the oil. This eliminates the need for oil removal treatment, and increases the productivity of the laminated core.

JP 2006-334648 A

  However, since the process of supplying an adhesive to a metal plate is usually slower than the process of punching the metal plate, if a mechanism for supplying the adhesive to the metal plate exists in the mold, the adhesive is applied. The processing becomes a bottleneck, and the production efficiency (throughput) of the laminated iron core can be lowered. In addition, if a mechanism for supplying an adhesive to the metal plate is present in the mold, the mold itself is increased in size, which can lead to an increase in the cost of the laminated core manufacturing apparatus. Furthermore, when an abnormality occurs in the mold, the adhesive hardens in the mold and the laminated core becomes clogged in the mold, and the mold is disassembled from the press for moving the mold up and down to take out the laminated core. There are cases where maintenance such as the above must be performed.

  Therefore, the present disclosure describes a laminated core manufacturing apparatus that can efficiently manufacture a laminated core at a low cost.

  An apparatus for manufacturing a laminated core according to one aspect of the present disclosure extends across first to Nth stages (N is a natural number of 3 or more) arranged in this order along a predetermined direction, and first to Nth stages. Are provided with a transport module and a controller. The transport module transports in a predetermined direction an iron core member made of a single punching member in which a metal plate is punched out in a predetermined shape by a mold or a block member in which a plurality of punching members are joined together. It is configured as follows. The first stage is a mounting stage that is positioned on the most upstream side in the conveying direction of the iron core member by the conveying module and on which a laminated body in which iron core members are temporarily laminated is placed. The Mth stage (M is a natural number of any one of 2 to N-1) is a supply stage configured to be able to supply an adhesive to the iron core member. The Nth stage is a main lamination stage in which iron core members that are located on the most downstream side in the transport direction and to which an adhesive is supplied are laminated. The transfer module is configured to horizontally hold the first and (N-1) th holding bodies configured to hold the iron core member, the first and the first to (N-1) th holding bodies, and the transfer body. And a drive mechanism for moving in the vertical direction and the vertical direction. The control unit controls the transport module to hold one iron core member by an nth (n is a natural number of 1 to N−1) holding body, while the nth stage and the (n + 1) th adjacent to each other. The core member constituting the uppermost layer of the stacked body placed on the placement stage is moved from the first to the Nth by moving the carrier so that the nth holding body reciprocates between the first stage and the second stage. The first process of placing the stage one by one in this order is executed.

  According to the laminated core manufacturing apparatus according to the present disclosure, it is possible to efficiently manufacture a laminated core at a low cost.

FIG. 1 is a perspective view showing an example of a stator laminated iron core. FIG. 2 is a perspective view showing the laminate. 3 is a cross-sectional view taken along line III-III in FIG. FIG. 4 is a plan view showing the punching member. FIG. 5 is a schematic diagram illustrating an example of a manufacturing apparatus for a stator laminated core. FIG. 6 is a cross-sectional view schematically showing a mechanism for stacking the punching members and a mechanism for discharging the stacked body from the mold. FIG. 7 is a cross-sectional view schematically showing a mechanism for stacking the punching members and a mechanism for discharging the stacked body from the mold. FIG. 8 is a perspective view schematically showing the laminating apparatus. FIG. 9 is a side view schematically showing the laminating apparatus. FIG. 10 is a cross-sectional view schematically showing a part of the measurement stage. FIG. 11 is a schematic diagram showing a supply plate and a liquid feeding unit. FIG. 12 is a top view showing the supply plate. FIG. 13 is an exploded perspective view showing the vicinity of the pressure module. FIG. 14 is a block diagram showing an apparatus for manufacturing a stator laminated core. FIG. 15 is a schematic diagram illustrating a hardware configuration of the controller. FIG. 16 is a side view schematically showing the stacking apparatus, and is a diagram for explaining the operation of the stacking apparatus. FIG. 17 is a side view schematically showing the stacking apparatus, and is a diagram for explaining the operation of the stacking apparatus. FIG. 18 is a side view schematically showing the stacking apparatus, and is a diagram for explaining the operation of the stacking apparatus. FIG. 19 is a side view schematically showing the stacking apparatus, and is a diagram for explaining the operation of the stacking apparatus. FIG. 20 is a side view schematically showing the stacking apparatus, and is a diagram for explaining the operation of the stacking apparatus. FIG. 21 is a side view schematically showing the stacking apparatus, and is a diagram for explaining the operation of the stacking apparatus. FIG. 22 is a schematic diagram illustrating a supply plate and a liquid feeding unit according to another example. FIG. 23 is a perspective view showing a temporary laminate according to another example. FIG. 24 is a diagram for explaining the operation of the engagement module. FIG. 25 is a side view schematically showing a laminating apparatus according to another example.

  Since the embodiment according to the present disclosure described below is an example for explaining the present invention, the present invention should not be limited to the following contents.

<< Summary of Embodiment >>
[1] A laminated iron core manufacturing apparatus according to an example of this embodiment includes first to Nth stages (N is a natural number of 3 or more) stages arranged in this order along a predetermined direction, and first to Nth stages. A transfer module disposed above the stage so as to extend over the stage and a control unit are provided. The transport module transports in a predetermined direction an iron core member made of a single punching member in which a metal plate is punched out in a predetermined shape by a mold or a block member in which a plurality of punching members are joined together. It is configured as follows. The first stage is a mounting stage that is positioned on the most upstream side in the conveying direction of the iron core member by the conveying module and on which a laminated body in which iron core members are temporarily laminated is placed. The Mth stage (M is a natural number of any one of 2 to N-1) is a supply stage configured to be able to supply an adhesive to the iron core member. The Nth stage is a main lamination stage in which iron core members that are located on the most downstream side in the transport direction and to which an adhesive is supplied are laminated. The transfer module is configured to horizontally hold the first and (N-1) th holding bodies configured to hold the iron core member, the first and the first to (N-1) th holding bodies, and the transfer body. And a drive mechanism for moving in the vertical direction and the vertical direction. The control unit controls the transport module to hold one iron core member by an nth (n is a natural number of 1 to N−1) holding body, while the nth stage and the (n + 1) th adjacent to each other. The core member constituting the uppermost layer of the stacked body placed on the placement stage is moved from the first to the Nth by moving the carrier so that the nth holding body reciprocates between the first stage and the second stage. The first process of placing the stage one by one in this order is executed.

  In the laminated core manufacturing apparatus according to one example of the present embodiment, after the laminated body is formed in the mold, the adhesion and lamination of the iron core members are performed outside the mold. Therefore, it is not necessary to provide a mechanism for supplying the adhesive in the mold. Therefore, the mold can be reduced in size, and the overall throughput can be improved while the core member is formed at high speed in the mold. In addition, since the mechanism for supplying the adhesive is generally cheaper than the mold, the cost can be reduced as compared with the case where a plurality of molds are used to improve the overall throughput. As described above, according to the laminated core manufacturing apparatus according to one example of the present embodiment, it is possible to efficiently manufacture the laminated core at a low cost.

  In the laminated core manufacturing apparatus according to one example of the present embodiment, one core is obtained by repeatedly holding and releasing one core member in each holding body while the transport body reciprocates above each stage. A member sequentially moves through each stage. Therefore, the iron core member is quickly conveyed to the downstream stage. Therefore, it becomes possible to manufacture a laminated iron core more efficiently. In addition, since it is not necessary to provide an iron core member transport mechanism between adjacent stages, the number of mechanisms required to move the iron core member can be reduced. Therefore, the manufacturing apparatus itself can be manufactured at a low cost.

  In the laminated core manufacturing apparatus according to one example of the present embodiment, a laminated core is obtained by adhering adjacent core members with an adhesive. Therefore, compared with the case where iron core members are fastened by caulking, welding, or the like, the magnetic characteristics are less likely to deteriorate. Therefore, it is possible to improve motor characteristics by manufacturing a motor using such a laminated core.

  [2] The apparatus according to the first aspect includes first to Nth stages (N is a natural number of 4 or more) arranged in this order along a predetermined direction, and the Lth (L is 2 to N-2). The stage of any natural number) is a measurement stage configured to be able to measure the thickness of the iron core member, and is the Mth stage (M is a natural number satisfying L <M and any of 3 to N-1). Is a supply stage configured to be able to supply an adhesive to the iron core member, and the transfer module further includes a rotation mechanism for rotating the iron core member between the measurement stage and the main lamination stage, and the control unit includes: After the thickness of one iron core member is measured in the measurement stage and before the one iron core member is laminated to another iron core member in this lamination stage, the thickness of the iron core member is measured by the measurement stage. The one iron core member based on the result A second process for determining whether or not a rollover is necessary and a third process for controlling the rotation mechanism based on the determination result in the second process and rotating the iron core member that requires the rollover by a predetermined angle are further executed. May be. In this case, it is determined whether or not rollover is required for each iron core member. For this reason, the degree of freedom of rolling is increased, and the dimensional accuracy of the final laminated core can be improved.

  [3] The apparatus described in the above item 1 includes first to Nth stages (N is a natural number of 4 or more) arranged in this order along a predetermined direction, and the Mth stage has an adhesive on the iron core member. The Kth stage (K is a natural number satisfying any one of 3 to N-1 and satisfying M <K) is a supply stage of the adhesive by the supply stage among the iron core members. The control stage is configured to be capable of inspecting, and the control unit determines, based on the inspection at the inspection stage, whether or not the supply state of the adhesive to the iron core member is appropriate, and the determination result in the fourth process Based on the above, a fifth process for excluding the iron core member determined to have an inappropriate supply state of the adhesive before reaching the main lamination stage may be further executed. By the way, when the adhesive is excessively supplied to the iron core member, the adhesive may protrude from between the iron core members when a plurality of iron core members are laminated in the present lamination stage. In the case where the adhesive is insufficiently supplied to the iron core member, a sufficient bonding force between the iron core members cannot be obtained, and the laminated iron core may be separated after completion. However, according to the apparatus described in the third item, it is possible to detect, for example, an iron core member in which the supply amount of the adhesive is excessive or small on the inspection stage. For this reason, it is possible to suppress the occurrence of defects in the laminated core due to the supply failure of the adhesive.

  [4] The apparatus according to the first item includes first to Nth stages (N is a natural number of 5 or more) arranged in this order along a predetermined direction, and the Lth (L is 2 to N-3). The stage of any natural number) is a measurement stage configured to be able to measure the thickness of the iron core member, and is the Mth stage (M is a natural number satisfying L <M) in any of 3 to N-2). Is a supply stage configured to be able to supply adhesive to the iron core member, and the K-th stage (K is a natural number satisfying any of 4 to N-1 and satisfying M <K) is supplied among the iron core members. The inspection stage is configured to be able to inspect the adhesive supply surface by the stage, and the transfer module further includes a rotation mechanism that rotates the iron core member between the measurement stage and the main lamination stage, and the control unit includes: The thickness of one iron core member is measured on the measurement stage. The one core member is rolled based on the measurement result of the thickness of the core member by the measurement stage before the one core member is stacked on the other core member in the stacking stage. A second process for determining whether or not is necessary, a third process for controlling the rotation mechanism based on the determination result in the second process to rotate the iron core member that requires the rollover by a predetermined angle, and an inspection on the inspection stage. And a fourth process for determining whether or not the supply state of the adhesive to the iron core member is appropriate, and the iron core member that is determined to be inappropriate for the supply state of the adhesive based on the determination result in the fourth process. A fifth process to be excluded before reaching the stacking stage is further executed. In this case, the same effects as those of the apparatus described in the second and third items can be obtained.

  [5] The apparatus according to any one of items 1 to 4 above is a pressurizing module that is positioned above the main stacking stage and the transport body and presses the transport body from the side opposite to the main stacking stage. The control unit further adds the one core member held by the N-1th holding body to the other core member already placed on the stacking stage. You may further perform the 6th process which controls a pressure module and pressurizes one iron core member and another iron core member via a conveyance body and the N-1th holding body. By the way, when one iron core member held by the (N-1) th holding body is laminated on another iron core member on this lamination stage, the reaction force acts on the (N-1) th holding body. There is a concern that the transport body provided with the holding body may be displaced. At this time, the force which acts on one iron core member clamped between the N-1th holding body and another iron core member may decrease. However, according to the apparatus of the 4th term, the pressurizing module pressurizes the conveyance body from the opposite side to the main stacking stage. Therefore, the reaction force generated in the transport body is canceled out by the pressurizing module, so that the displacement of the transport body is suppressed. Therefore, a sufficiently large force can be applied to one iron core member sandwiched between the (N-1) th holding body and another iron core member. As a result, one iron core member can be firmly joined to another iron core member with an adhesive.

  [6] In the apparatus according to [5], the transport module further includes a pressurizing auxiliary body provided on the downstream side in the transport direction with respect to the N-1th holding body in the transport body, and the control unit includes When the first to (N-1) th holding bodies are positioned on the first to (N-1) th stages, respectively, the pressurizing module is controlled, and the main body is interposed via the transport body and the pressurizing auxiliary body. You may further perform the 7th process which pressurizes the some iron core member laminated | stacked on the lamination | stacking stage. In this case, even when the N-1th holding body moves from the main stacking stage to another stage, the pressurizing auxiliary member pressurizes the transport body from the side opposite to the main stacking stage. Therefore, it becomes possible to more firmly join one iron core member to another iron core member with an adhesive.

  [7] The device according to any one of [1] to [6] further includes an engagement module including an engagement piece, and an engagement piece is provided at a peripheral edge of each core member constituting the laminate. Engaging portions that are engageable with each other, and the engaging portions do not overlap between adjacent iron core members in the stacking direction of the stacked body, and the control unit is mounted on the mounting stage. When the first holding body holds the iron core member forming the uppermost layer of the laminated body, the engaging module is controlled, and the engaging portion of the iron core member forming the uppermost layer of the laminated body or the iron core member immediately below it is controlled. You may further perform the 8th process which engages an engagement piece with respect to. When the engaging portion provided in the iron core member is a concave notch, the iron core member other than the uppermost layer is engaged by engaging the notch of the iron core member forming the uppermost layer of the laminate with the engaging piece. The engagement piece restricts the upward movement of the engagement piece. Moreover, when the engaging part provided in the iron core member is a protrusion, the iron core member other than the uppermost layer is engaged by the engagement of the protrusion of the iron core member and the engaging piece immediately below the uppermost layer of the laminate. The engagement piece restricts the upward movement of the engagement piece. Therefore, by holding the uppermost iron core member by the first holding body and lifting it upward, it becomes possible to easily and reliably separate the uppermost iron core member from the other iron core members.

  [8] In the apparatus according to any one of [1] to [7], the mounting stage moves up and down the first lifting body for moving the mounted core member up and down, and the first lifting body. The stacking stage includes a second lifting body that lifts and lowers the stacked core members, and a second lifting mechanism that moves the second lifting body up and down. The unit controls the first lifting mechanism to raise the first lifting body by a predetermined amount, and then controls the transport module to hold one iron core member from the first lifting body, or the first After the first core member is held from the first lifting body by the holding body, the first lifting mechanism is controlled to raise the first lifting body by a predetermined amount, and the Nth holding After the one core member held by the body is placed on the second lifting body, the second lifting mechanism is controlled to control the second lifting mechanism. Body and may further execute a processing of the 10 by a predetermined amount drop. In this case, the position where the first holding body holds the iron core member from the first lifting body can be set to a certain height position, and the Nth holding body holds the iron core member relative to the second lifting body. The position to be mounted can be set to a certain height position. For this reason, it is not necessary to individually move the holding body of the transport module up and down, so that the control can be simplified.

  [9] In the apparatus according to any one of [1] to [8], the supply stage includes an adhesive flow path, and a plurality of discharge ports that communicate with the flow path and are arranged along the flow path. The size of the plurality of discharge ports may be set so as to increase toward the downstream side of the flow path. By the way, it is necessary that the adhesive has a predetermined viscosity so that the adhesive supplied from the supply stage does not spill from the iron core member. Therefore, the flow rate of the adhesive flowing through the flow path provided in the supply member tends to decrease as it goes downstream. Therefore, in the apparatus described in item 7, the size of the plurality of discharge ports provided in the supply member is set so as to increase toward the downstream side of the flow path. In this case, the discharge amount of the adhesive discharged from the downstream discharge port, which tends to decrease the flow velocity, and the discharge amount of the adhesive discharged from the upstream discharge port are likely to be substantially equal. Therefore, it becomes possible to join the punching members appropriately and firmly, and to improve the flatness of the laminated iron core.

  [10] The apparatus according to any one of [1] to [8], wherein the supply stage is provided with an adhesive flow path and a plurality of discharge ports arranged along the flow path. The flow channel area of the flow channel may be set to become smaller toward the downstream side of the flow channel. In this case, since the flow rate becomes faster toward the downstream side of the flow path, the discharge amount of the adhesive discharged from the downstream discharge port and the flow rate of the adhesive discharged from the upstream discharge port tend to decrease. The discharge amount tends to be substantially uniform. Therefore, it becomes possible to join the punching members appropriately and firmly, and to improve the flatness of the laminated iron core.

≪Example of embodiment≫
Hereinafter, an example of an embodiment according to the present disclosure will be described in more detail with reference to the drawings. In the following description, the same reference numerals are used for the same elements or elements having the same function, and redundant description is omitted.

[Configuration of stator cores]
First, the configuration of the stator laminated core 1 will be described with reference to FIG. The stator laminated core 1 is a part of a stator (stator). The stator is one in which windings are attached to the stator laminated core 1. An electric motor (motor) is comprised by combining a stator with a rotor (rotor). The stator laminated core 1 has a cylindrical shape. That is, a through hole 1 a extending along the central axis Ax is provided in the central portion of the stator laminated core 1. A rotor can be arranged in the through hole 1a.

  The stator laminated iron core 1 has a yoke part 2 (main body part) and a plurality of teeth parts 3. The yoke portion 2 has an annular shape and extends so as to surround the central axis Ax. The width, the inner diameter, the outer diameter, and the thickness in the radial direction of the yoke portion 2 can be set to various sizes according to the application and performance of the motor. A plurality of concave grooves 2 a extending along the central axis Ax are provided on the outer peripheral surface of the yoke portion 2. The concave groove 2a extends from one end surface (upper surface in FIG. 1) of the stator laminated core 1 to the other end surface (lower surface in FIG. 1). In the present embodiment, the three concave grooves 2a are provided on the outer peripheral surface of the yoke portion 2 at an interval of approximately 120 ° around the central axis Ax.

  Each tooth portion 3 extends along the radial direction of the yoke portion 2 from the inner edge of the yoke portion 2 toward the central axis Ax side. That is, each tooth portion 3 projects from the inner edge of the yoke portion 2 toward the central axis Ax. In the stator laminated core 1, twelve teeth portions 3 are integrally formed with the yoke portion 2. The teeth portions 3 are arranged at substantially equal intervals in the circumferential direction of the yoke portion 2. Between adjacent teeth 3, a slot 4 is defined which is a space for arranging windings (not shown).

  The stator laminated iron core 1 is a laminated body in which a plurality of processed plates 10 (iron core members; punching members) are stacked. That is, the processed plate 10 has a shape corresponding to the stator laminated core 1. A through hole 11 a is provided in the central portion of the processed plate 10. The processed plate 10 includes a yoke piece portion 12 corresponding to the yoke portion 2 and a plurality of tooth piece portions 13 corresponding to the respective tooth portions 3. A cutout portion 12 a corresponding to the concave groove 2 a is provided on the outer peripheral edge of the yoke piece portion 12. A slot 14 (through hole) corresponding to the slot 4 is defined between the adjacent tooth pieces 13.

  The adjacent processed plates 10 in the stacking direction (the extending direction of the central axis Ax) are joined together by an adhesive 20. For example, a plurality of spot-like adhesives 20 a are arranged on the surface of the yoke piece 12 so as to be arranged at substantially equal intervals along the circumferential direction of the yoke piece 12. In the present embodiment, each adhesive 20 a is disposed at a position corresponding to the base end portion of each tooth piece portion 13. Two spot-like adhesives 20 b are arranged on each tooth piece portion 13 on the surface of each tooth piece portion 13. The two adhesives 20b in each tooth piece portion 13 are arranged in the extending direction of the tooth piece portion 13 (the radial direction of the yoke piece portion 12) at the central portion in the width direction of the tooth piece portion 13. Therefore, one adhesive 20 a and two adhesives 20 b arranged on the tooth piece 13 corresponding to the adhesive 20 a are arranged in a line in the radial direction of the yoke piece 12. The areas of these three adhesives 20a, 20b, and 20b may increase as they go outward from the central axis Ax as shown in FIG. It may become smaller as it goes outward from the central axis Ax.

[Configuration of laminate]
Next, the stacked body 30 will be described with reference to FIGS. The laminated body 30 is in a state where the temporary crimping portion 31 is fitted in the concave groove 2 a of the stator laminated core 1. The laminate 30 is formed by stacking a plurality of punching members 40. That is, the punching member 40 has a shape corresponding to the laminated body 30. In other words, the punching member 40 is in a state where the temporary crimping piece 41 corresponding to the temporary crimping portion 31 is fitted in the cutout portion 12 a of the processed plate 10. However, the punching members 40 are not joined by the adhesive 20.

  A cutting line CL is provided between the temporary crimping piece 41 and the cutout portion 12 a of the processed plate 10. Each cutting line CL is formed, for example, by cutting or bending a magnetic steel sheet W (described later), then pushing back the cut or punched part and press-fitting into the original magnetic steel sheet W. May be. When the electromagnetic steel sheet W is cut or punched, the cut or punched part is plastically deformed and the upper die side (the punch 133 side described later) extends slightly, so that the part is press-fitted into the original electromagnetic steel sheet W. Then, the part and the original electromagnetic steel sheet W fit firmly to such an extent that they cannot be easily removed by hand.

  The punching members 40 adjacent in the stacking direction are fastened by temporary crimping 42 provided on the temporary crimping piece 41 via the temporary crimping piece 41. It can be said that the temporary crimping portion 31 is a laminated body in which temporary crimping pieces 41 are stacked. Specifically, as shown in FIG. 3, the temporary caulking 42 includes a bent portion 42 a formed on the temporary caulking piece 41 of the punching member 40 other than the lowermost layer of the laminated body 30, and the uppermost portion of the laminated body 30. And a through hole 42b formed in the temporary crimping piece 41 of the punching member 40 forming the lower layer. The bent portion 42 a is composed of a concave portion formed on the front surface side of the temporary crimping piece 41 and a convex portion formed on the back surface side of the temporary crimping piece 41. The concave portion of the bent portion 42a of one temporary crimping piece 41 is joined to the convex portion of the bent portion 42a of another temporary crimping piece 41 adjacent to the surface side of the one temporary crimping piece 41. The convex portion of the bent portion 42a of one temporary crimping piece 41 is joined to the concave portion of the bent portion 42a of another temporary crimping piece 41 adjacent on the back surface side of the one temporary crimping piece 41. A convex portion of the bent portion 42a of the temporary crimping piece 41 of the punching member 40 adjacent to the lowermost layer of the stacked body 30 is joined to the through hole 42b. The through-hole 42b prevents the temporary crimping portion 31 of the laminate 30 to be manufactured next from being fastened by the bent portion 42a with respect to the already manufactured laminate 30 when the laminate 30 is continuously manufactured. Have

  The punching member 40 is obtained, for example, by processing the electromagnetic steel sheet W (for example, punching, cutting and bending). Although the thickness of the punching member 40 can be set to various sizes according to the use and performance of the motor, it may be, for example, about 0.1 mm to 0.5 mm.

  The laminated body 30 may be configured by so-called inversion. “Rolling” refers to the relative shifting of the angle between the punching members 40 when the plurality of punching members 40 are stacked to obtain the laminate 30, and the punching members 40 are rotated and stacked. Including that. Rolling is performed mainly for the purpose of offsetting the thickness deviation of the punching member 40. In obtaining the punching member 40, the punching member 40 may be rolled up one by one, or may be rolled up for each unit block in which a predetermined number of punching members 40 are stacked. The angle or frequency of inversion may be set to an arbitrary value.

[Stator laminated iron core manufacturing equipment]
Then, with reference to FIGS. 5-15, the manufacturing apparatus 100 of the stator laminated core 1 is demonstrated.

  The manufacturing apparatus 100 is an apparatus for manufacturing the stator laminated core 1 from the electromagnetic steel plate W (working plate) which is a strip-shaped metal plate. The manufacturing apparatus 100 includes an uncoiler 110, a delivery apparatus 120, a punching apparatus 130 (mold), an annealing furnace 140, a temporary caulking removal apparatus 150, a laminating apparatus 160, and a controller 170 (control unit). .

  The uncoiler 110 rotatably holds the coil material 111 in a state in which the coil material 111 that is a strip-shaped electromagnetic steel sheet W wound in a coil shape is mounted. Oil is applied to substantially the entire electromagnetic steel sheet W constituting the coil material 111 for the purpose of suppressing wear of the punch 133 (described later), improving the punchability of the punching member 40, and the like. The feeding device 120 includes a pair of rollers 121 and 122 that sandwich the electromagnetic steel sheet W from above and below. The pair of rollers 121, 122 rotate and stop based on an instruction signal from the controller 170, and intermittently sequentially feed the electromagnetic steel sheet W toward the punching device 130.

  The length of the electromagnetic steel plate W constituting the coil material 111 may be, for example, about 500 m to 10000 m. The thickness of the electromagnetic steel sheet W may be, for example, about 0.1 mm to 0.5 mm. The thickness of the electromagnetic steel plate W may be, for example, about 0.1 mm to 0.3 mm from the viewpoint of obtaining the stator laminated core 1 having more excellent magnetic characteristics. The width of the electromagnetic steel sheet W may be, for example, about 50 mm to 500 mm.

  The punching device 130 operates based on an instruction signal from the controller 170. The punching device 130 sequentially stacks the functions of forming the punching member 40 by sequentially punching the magnetic steel sheets W intermittently delivered by the delivery device 120 and the punching member 40 obtained by the punching processing. And has a function of manufacturing the laminate 30. Specifically, as shown in FIG. 6, the punching device 130 includes a lower die 131, a die plate 132, a stripper (not shown), an upper die (not shown), and a punch 133. Prepare.

  The lower mold 131 holds the die plate 132 placed on the lower mold 131. The lower mold 131 is provided with discharge holes 131 a through which the punching member 40 punched from the electromagnetic steel sheet W is discharged at positions corresponding to the punch 133. As shown in FIGS. 6 and 7, a cylinder 131b, a stage 131c, and a pusher 131d are disposed in the discharge hole 131a.

  As shown in FIG. 6, when the punch 133 moves up and down based on an instruction signal from the controller 170 and the punch 133 is inserted into the die 132 a held by the die plate 132, punching from the electromagnetic steel sheet W is performed. The member 40 is punched out. At this time, the cylinder 131b elastically supports the punching member 40 in order to prevent the punching member 40 punched from the electromagnetic steel sheet W by the punch 133 from dropping downward.

  The cylinder 131b is configured to be movable in the vertical direction based on an instruction signal from the controller 170. Therefore, the cylinder 131b intermittently moves downward every time the punching member 40 is stacked on the cylinder 131b. When a predetermined number of punching members 40 are stacked on the cylinder 131b and the stacked body 30 is formed, the cylinder 131b is positioned at a position where the surface of the cylinder 131b is flush with the surface of the stage 131c as shown in FIG. Move.

  The stage 131c is provided with a hole 131e through which the cylinder 131b can pass. The pusher 131d is configured to be movable in the horizontal direction on the surface of the stage 131c based on an instruction signal from the controller 170. In a state where the cylinder 131b has moved to a position where the surface of the cylinder 131b is flush with the surface of the stage 131c, the pusher 131d delivers the stacked body 30 from the cylinder 131b to the stage 131c. As shown in FIG. 5, the laminated body 30 delivered to the stage 131 c is discharged to a conveyor Cv <b> 1 provided so as to extend between the punching device 130 and the annealing furnace 140. The conveyor Cv1 operates based on an instruction signal from the controller 170, and sends the laminated body 30 to the annealing furnace 140.

  The annealing furnace 140 evaporates the oil adhering to the punching member 40 by heating the laminate 30 at a predetermined temperature (for example, about 750 ° C. to 800 ° C.) for a predetermined time (for example, about 1 hour) ( And the function of removing the distortion remaining in the punching member 40. The laminate 30 discharged from the annealing furnace 140 is placed on a conveyor Cv2 provided so as to extend between the annealing furnace 140 and the temporary caulking removal device 150. The conveyor Cv2 operates based on an instruction signal from the controller 170, and sends the stacked body 30 to the temporary caulking removal device 150.

  The temporary caulking removal device 150 has a function of removing the temporary caulking portion 31 from the stacked body 30 sent from the conveyor Cv2. When the temporary crimping portion 31 is removed from the laminate 30 by the temporary crimping removal device 150, the temporary laminate 50 (see FIG. 8 and FIG. 8) in which a plurality of processed plates 10 are stacked in a state where adjacent processed plates 10 are not joined to each other. (See FIG. 9). The temporary laminated body 50 discharged from the temporary crimping removal device 150 is placed on a conveyor Cv3 provided so as to extend between the temporary crimping removal device 150 and the lamination device 160. The conveyor Cv3 operates based on an instruction signal from the controller 170, and sends the temporary laminated body 50 to the laminating apparatus 160.

  The laminating apparatus 160 has a function of taking out the processed plates 10 one by one from the temporary laminate 50 sent from the conveyor Cv3, a function of supplying the adhesive 20 to the processed plates 10, and a processed plate 10 to which the adhesive 20 has been supplied. Has a function of stacking the material on another processed plate 10. As illustrated in FIGS. 8 and 9, the stacking apparatus 160 includes a base 200, a mounting stage 300, a measurement stage 400, a supply stage 500, an inspection stage 600, a main stacking stage 700, and a transfer module 800. And a pressurizing module 900.

  The base 200 has a function of mounting and holding the mounting stage 300, the measurement stage 400, the supply stage 500, the inspection stage 600, and the main lamination stage 700. In the present embodiment, the mounting stage 300, the measurement stage 400, the supply stage 500, the inspection stage 600, and the main stacking stage 700 are arranged in this order along a predetermined direction (X-axis direction in FIGS. 8 and 9). Yes. The base 200 is a plate-like body having a rectangular shape, for example, and extends in the one direction. The base 200 is fixed to a floor surface not shown.

  The mounting stage 300 includes a fixed plate 301, a pair of movable plates 302 and 303, and a drive mechanism 304 (first lifting mechanism). The fixed plate 301 is fixed to the base 200. Specifically, a notch is provided in a region of the base 200 that overlaps the fixing plate 301, and the vicinity of the periphery of the fixing plate 301 is fixed to the vicinity of the periphery of the notch of the base 200. The fixed plate 301 is a plate-like body having a rectangular shape, for example. Through holes 305 are respectively provided at the four corners of the fixing plate 301.

  The pair of movable plates 302 and 303 face each other in the vertical direction (Z-axis direction in FIGS. 8 and 9). The movable plate 302 is disposed below the fixed plate 301, and the movable plate 303 (first lifting body) is disposed above the fixed plate 301. The movable plates 302 and 303 are plate-like bodies having a rectangular shape, for example. Connecting members 306 for connecting the movable plate 302 and the movable plate 303 are attached to the four corners of the movable plates 302 and 303, respectively. Each connecting member 306 is inserted into the corresponding through hole 305.

  The drive mechanism 304 is connected to the movable plate 302. As shown in FIG. 9, the drive mechanism 304 operates based on an instruction signal from the controller 170 to move the movable plates 302 and 303 up and down. In other words, the drive mechanism 304 operates to move the movable plates 302 and 303 close to and away from the fixed plate 301 in the vertical direction. The drive mechanism 304 may be an actuator, an air cylinder, or the like, for example.

  As shown in FIGS. 8 to 10, the measurement stage 400 includes a mounting plate 401 and a measurement unit 402. The mounting plate 401 is configured to be able to support one processed plate 10. The mounting plate 401 is a plate-like body having a rectangular shape, for example. Connecting members 403 that connect the mounting plate 401 and the base 200 are attached to the four corners of the mounting plate 401, respectively.

  As shown in FIG. 10, a spacer 404 is provided on the upper surface of the mounting plate 401. The spacer 404 may be composed of, for example, one member having an annular shape, or may be composed of a plurality of members arranged so as to exhibit a circular shape as a whole. The processed plate 10 can be arranged inside the spacer 404. The height of the spacer 404 is higher than the thickness of the processed plate 10. The mounting plate 401 is provided with at least one through hole 405. In the present embodiment, the mounting plate 401 is provided with four through holes 405. These four through holes 405 are arranged so as to have a circular shape so as to correspond to the yoke piece 12 of the processed plate 10.

  The measurement unit 402 is provided on the lower surface side of the mounting plate 401. The measurement unit 402 includes at least one sensor 406. In the present embodiment, the measurement unit 402 includes four sensors 406. Each sensor 406 is inserted into a corresponding through-hole 405 so that the tip of the sensor 406 protrudes from the upper surface of the mounting plate 401. The sensor 406 has a function of measuring the thickness of one processed plate 10 placed on the placement plate 401. The sensor 406 may measure the thickness of the yoke piece 12 of the processed plate 10 at two or more locations. Measurement data measured by the sensor 406 is transmitted to the controller 170. The sensor 406 may be a contact type (for example, an electronic micrometer or a linear gauge) or a non-contact type (for example, a laser sensor or an imaging camera). When the sensor 406 is an imaging camera, the controller 170 performs image processing based on the captured image of the processed board 10 captured by the imaging camera, and the thickness of the processed board 10 is calculated.

  The supply stage 500 has a function of supplying an adhesive to the electromagnetic steel sheet W. As shown in FIGS. 8, 9, and 11, a mounting plate 501, a supply plate 510 (supply member), a liquid feeding unit 520, and a drive mechanism 530 are included.

  The mounting plate 501 is configured to be able to support one processed plate 10. The mounting plate 501 is a plate-like body having a rectangular shape, for example. As shown in FIG. 8, a circular through hole 502 is provided at the center of the mounting plate 501. The mounting plate 501 supports the outer peripheral edge of the processed plate 10 at the peripheral edge portion of the through hole 502. Connection members 503 for connecting the mounting plate 501 and the base 200 are attached to the four corners of the mounting plate 501, respectively.

  The supply plate 510 is a plate-like body having a rectangular shape. As shown in FIGS. 11 and 12, a liquid reservoir 511, a plurality of branch paths 512, an inlet 513, and a plurality of discharge ports 514 are formed inside the supply plate 510.

  The liquid reservoir 511 is a space in which the adhesive 20 is temporarily stored. The liquid reservoir 511 is located at the center of the supply plate 510 and has a circular shape when viewed from above. The plurality of branch paths 512 extend outward from the outer peripheral edge of the liquid reservoir 511 so as to radially expand from the center of the liquid reservoir 511 when viewed from above. In the present embodiment, six branch paths 512 are provided in the supply plate 510 corresponding to the teeth piece portion 13 of the processed plate 10. In a state in which the processed plate 10 is placed on the upper surface of the supply plate 510, each branch path 512 overlaps with each tooth piece 13 of the processed plate 10. The leading end of each branch path 512 overlaps the yoke piece 12 of the processed plate 10. The liquid reservoir 511 and the plurality of branch paths 512 function as a flow path Fc for the adhesive 20 between the inlet 513 and the plurality of discharge ports 514.

  The inlet 513 extends along the vertical direction from the liquid reservoir 511 toward the lower surface of the supply plate 510. The inlet 513 is connected to the liquid feeding unit 520. The plurality of discharge ports 514 are arranged radially from the central portion of the liquid reservoir 511 when viewed from above. Specifically, the plurality of discharge ports 514 are respectively connected to the respective branch paths 512 and are arranged in a line in the extending direction of the corresponding branch paths 512. Therefore, the inlet 513, the liquid reservoir 511, each branch 512, and each outlet 514 are in communication with each other. The adhesive 20 sent from the liquid feeding unit 520 reaches each discharge port 514 from the inlet 513 through the liquid reservoir 511 and the branch path 512, and is then discharged from each discharge port 514. In the present embodiment, three discharge ports 514 are connected to one branch path 512.

  The opening area of the plurality of discharge ports 514 arranged from the upstream side (inlet 513 side) to the downstream side (discharge port 514 side) of the flow channel Fc increases from the upstream side to the downstream side of the flow channel Fc. . The discharge port 514 a located on the most downstream side among the plurality of discharge ports 514 overlaps with the yoke piece 12 of the processed plate 10 in a state where the processed plate 10 is placed on the upper surface of the supply plate 510. Among the plurality of discharge ports 514, the discharge port 514 b positioned upstream of the discharge port 514 a is a state in which the processed plate 10 is placed on the upper surface of the supply plate 510, and the corresponding tooth piece 13 of the processed plate 10. And overlap. Therefore, the adhesive discharged from the discharge port 514 is supplied in a spot shape to the lower surface of the processed plate 10 placed on the supply plate 510. The amount of the adhesive 20 supplied to the lower surface of the processed plate 10 may be such that it does not protrude from between the processed plates 10 due to the pressure when the plurality of processed plates 10 are stacked.

  The liquid feeding unit 520 has a function of feeding the adhesive 20 to the supply plate 510. As shown in FIG. 11, the liquid feeding unit 520 includes a cylinder 521, a piston 522, a screw shaft 523, a drive mechanism 524, and a liquid source 525.

  The cylinder 521 is a bottomed container that temporarily stores the adhesive 20. A discharge port 521 a is provided on the bottom wall of the cylinder 521. The discharge port 521a is connected to the inlet 513 of the supply plate 510 by a pipe 526. A valve 527 is provided on the pipe 526. The valve 527 can be opened and closed based on an instruction signal from the controller 170.

  The piston 522 is inserted into the cylinder 521 and can slide within the cylinder 521. The outer shape of the piston 522 substantially matches the inner diameter of the cylinder 521. Therefore, even if the piston 522 slides on the cylinder 521, leakage of the adhesive 20 to the piston 522 side is prevented. A female screw hole 522 a is provided inside the piston 522 so as to extend along the extending direction of the piston 522. The female screw hole 522a extends from the vicinity of the end portion (tip portion) on the cylinder 521 side of the piston 522 to the end surface of the opposite end portion (base end portion).

  The screw shaft 523 is screwed into the female screw hole 522a. The drive mechanism 524 is connected to the screw shaft 523 and rotates the screw shaft 523 based on an instruction signal from the controller 170. The drive mechanism 524 may be a rotary motor, for example. When the screw shaft 523 is rotated by the drive mechanism 524, the piston 522 that is screwed with the screw shaft 523 moves forward and backward with respect to the cylinder 521.

  The liquid source 525 functions as a supply source of the adhesive 20. As the adhesive 20, for example, an acrylic or epoxy adhesive may be used. The adhesive 20 may be a one-component adhesive or a two-component mixed adhesive. The liquid source 525 is connected to the inside of the cylinder 521 through a pipe 528. A valve 529 is provided on the pipe 528. The valve 529 can be opened and closed based on an instruction signal from the controller 170.

  The drive mechanism 530 is provided on the base 200 as shown in FIGS. 8 and 9. The cylinder of the drive mechanism 530 is connected to the lower surface of the supply plate 510. When the drive mechanism 530 operates based on an instruction signal from the controller 170, the cylinder of the drive mechanism 530 expands and contracts, and the supply plate 510 moves up and down between the raised position (supply position) and the lowered position (retracted position). . Therefore, the supply plate 510 is displaced by the drive mechanism 530 so as to approach and separate from the mounting plate 501 located above the supply plate 510.

  As shown in FIGS. 8 and 9, the inspection stage 600 includes a mounting plate 601 and an imaging device 602. The mounting plate 601 is configured to be able to support one processed plate 10. The mounting plate 601 is a plate-like body having a rectangular shape, for example. As shown in FIG. 8, a circular through-hole 603 is provided at the center of the mounting plate 601. The mounting plate 601 supports the outer peripheral edge of the processed plate 10 at the peripheral edge portion of the through hole 603. Connecting members 604 for connecting the mounting plate 601 and the base 200 are attached to the four corners of the mounting plate 601, respectively.

  The imaging device 602 is configured to image the lower surface of the processed plate 10 placed on the placement plate 601 through the through hole 603 based on an instruction signal from the controller 170. A captured image captured by the imaging device 602 is transmitted to the controller 170. The controller 170 performs image processing on the captured image and determines whether or not the adhesive 20 supplied to the lower surface of the processed plate 10 is in a position according to the design or has a dimension according to the design. In this case, the adhesive 20 may contain a fluorescent material (for example, a material that emits light in response to black light), thereby improving the visibility of the adhesive 20 supplied to the processed plate 10.

  The stacking stage 700 includes a fixed plate 701, a movable plate 702 (second elevating body), a drive mechanism 703 (second elevating mechanism), and sensors 704 and 705. The fixed plate 701 is fixed to the base 200. Specifically, a notch is provided in a region of the base 200 that overlaps the fixing plate 701, and the vicinity of the periphery of the fixing plate 701 is fixed to the vicinity of the periphery of the notch of the base 200. The fixed plate 701 is a plate-like body having a rectangular shape, for example. A through hole (not shown) is provided at the center of the fixed plate 701.

  A plurality of guide members 706 extending in the vertical direction are provided on the upper surface of the fixed plate 701. In the present embodiment, three guide members 706 are provided on the upper surface of the fixed plate 701. These guide members 706 are arranged around the center of the fixed plate 701 so as to exhibit a circular shape as a whole. The inner peripheral surfaces of these guide members 706 may have a shape corresponding to the peripheral edge of the processed plate 10 as a whole. In this case, the processed plate 10 can be positioned by the guide member 706 by holding the periphery of the processed plate 10 by the inner peripheral surface of the guide member 706. Further, the inner peripheral surface of the guide member 706 may be provided with a ridge that extends in the vertical direction and has a shape corresponding to the notch 12 a of the processed plate 10. In this case, the processed plate 10 can be positioned more accurately by holding the peripheral edge of the processed plate 10 by the inner peripheral surface of the guide member 706 while engaging the notch 12a of the processed plate 10 with the protrusion. .

  The movable plate 702 is disposed above the fixed plate 701. The movable plate 702 is a plate-like body having a rectangular shape, for example. On the movable plate 702, at least one processed plate 10 is configured to be mountable. A connecting member 707 that connects the movable plate 702 and the drive mechanism 703 is attached to the center of the movable plate 702. The connecting member 707 is inserted into the through hole of the fixed plate 701.

  The movable plate 702 is provided with a plurality of through holes 708. In this embodiment, three through holes 708 are provided in the movable plate 702 corresponding to the number of guide members 706. These through holes 708 are arranged around the center of the movable plate 702 so as to exhibit a circular shape as a whole. Each through hole 708 has a shape corresponding to the guide member 706. A corresponding guide member 706 is inserted into each through hole 708.

  The drive mechanism 703 is connected to the movable plate 702. As shown in FIG. 9, the drive mechanism 703 operates based on an instruction signal from the controller 170 and moves the movable plate 702 up and down along the guide member 706. In other words, the drive mechanism 703 operates to move the movable plate 702 closer to and away from the fixed plate 701 in the vertical direction. For example, an actuator, an air cylinder, or the like may be used as the drive mechanism 703.

  The sensor 704 is a weight sensor configured to be able to measure a load on the movable plate 702. For example, the sensor 704 may be disposed between the drive mechanism 703 and the connecting member 707. The sensor 704 may be a load cell, for example. The load data measured by the sensor 704 is transmitted to the controller 170 as shown in FIG.

  The sensor 705 is a distance sensor configured to measure a distance from the sensor 705 to the movable plate 702. The sensor 705 is disposed on the fixed plate 701 so as to overlap with the movable plate 702 when viewed from the vertical direction. The sensor 705 may be, for example, a laser displacement meter or an ultrasonic displacement meter. The distance data measured by the sensor 705 is transmitted to the controller 170 as shown in FIG.

  As shown in FIGS. 8 and 9, the transport module 800 includes a drive unit 810, a drive unit 820, holding bodies 831 to 834, a pressurizing auxiliary body 840, a rotation mechanism 850, and an intake unit 860. Including.

  The drive unit 810 includes a pair of transport rails 811, a pair of transport plates 812 and 813 (transport body), link members 814 and 815, and a drive mechanism 816. The pair of transport rails 811 are fixed to a fixed wall (not shown). The pair of transport rails 811 extends along a predetermined direction (the X-axis direction in FIGS. 8 and 9) above each stage 300 to 700.

  The pair of transport plates 812 and 813 are opposed to each other in the vertical direction (Z-axis direction in FIGS. 8 and 9). The pair of transport plates 812 and 813 are disposed below the transport rail 811. The transport plate 812 is disposed above the transport plate 813. The transport plates 812 and 813 are plate-like bodies having a rectangular shape, for example.

  A plurality of sliders 817 are attached to the upper surface of the transport plate 812. On one side edge side of the transport plate 812, the sliders 817 are arranged in a line along the extending direction of the transport rail 811. On the other side edge side of the transport plate 812, the sliders 817 are arranged in a line along the extending direction of the transport rail 811. Each slider 817 is fitted to the transport rail 811. Therefore, the transport plate 812 can slide along the extending direction of the transport rail 811.

  The transport plate 813 is separated from the transport plate 812 in the vertical direction. The transport plate 813 is connected to the transport plate 812 by a connecting shaft 818 extending in the vertical direction on the mounting stage 300 side. The transport plate 813 is slidably attached to the connection shaft 818. A pair of guide shafts 813 a is provided at the edge of the transport plate 813 on the side of the stacking stage 700. The pair of guide shafts 813 a extends upward from the upper surface of the transport plate 812. Each of the pair of guide shafts 813a is inserted into a pair of through holes 812a (see FIG. 13) provided at the end edge of the transport plate 812 on the mounting stage 300 side. Therefore, the guide shaft 813a is slidable in the through hole 812a. Note that an urging force is applied between the transport plates 812 and 813 in a direction approaching each other by an elastic member (for example, a tension coil spring) (not shown).

  Each of the link members 814 and 815 is a columnar member extending in one direction. A connecting shaft 818 is inserted through one end of the link member 814. Therefore, the link member 814 can swing around the connection shaft 818. The other end of the link member 814 and one end of the link member 815 are connected by a connecting shaft 819. Therefore, the link members 814 and 815 can rotate around the connecting shaft 819.

  The drive mechanism 816 is connected to the other end of the link member 815. As shown in FIG. 9, the drive mechanism 816 operates based on an instruction signal from the controller 170 to rotate the link member 815. The drive mechanism 816 may be a rotary motor, for example.

  When the link member 815 rotates along with the rotation of the drive mechanism 816, the link member 814 moves back and forth in the X axis direction while swinging via the connecting shaft 819. Here, since the link member 814 is connected to the transport plates 812 and 813 via the connecting shaft 818 and the transport plate 812 is connected to the transport rail 811 via the slider 817, the transport plates 812 and 813 are transported. It advances and retreats along the rail 811. Specifically, the transport plates 812 and 813 are configured such that the holding bodies 831 to 834 and the pressurizing auxiliary bodies 840 correspond to the stages 300 to 700 one to one, respectively (see FIGS. 16 and 17), and the holding body 831. 834 respectively correspond to the stages 400 to 700 on a one-to-one basis, while the pressure assisting body 840 moves horizontally between the advance positions (see FIGS. 9 and 18) not corresponding to any stage. That is, the drive unit 810 constitutes a slider crank mechanism as a whole.

  As shown in FIGS. 8, 9, and 13, the drive unit 820 is disposed between the pair of transport plates 812 and 813 as a whole. The drive unit 820 includes a main body 821, an inclined plate 822, a support plate 823, and a drive mechanism 824.

  The main body 821 is a columnar member extending in the longitudinal direction of the transport plates 812 and 813. A plurality of rollers 825 are attached to both side surfaces of the main body 821 so as to be rotatable with respect to the main body 821.

  The inclined plate 822 is fixed to the lower surface of the transport plate 812 as shown in FIGS. 9 and 13. The lower surface of the inclined plate 822 faces the upper surface of the transport plate 813 and is in contact with the peripheral surface of the roller 825. The lower surface of the inclined plate 822 is an inclined surface that is inclined so that the distance between the lower surface and the upper surface of the transport plate 813 increases as it goes in a predetermined direction (in this embodiment, the closer to the driving mechanism 824). .

  The support plate 823 is fixed to the upper surface of the transport plate 813 and is located below the main body 821. The upper surface of the support plate 823 is in contact with the peripheral surface of the roller 825. Accordingly, the roller 825 is sandwiched between the lower surface of the inclined plate 822 and the upper surface of the support plate 823.

  The drive mechanism 824 is connected to the end of the main body 821 on the main stage 700 side. The drive mechanism 824 is fixed to the transport plate 813, but is not connected to the transport plate 812. As shown in FIG. 9, the drive mechanism 824 operates based on an instruction signal from the controller 170, and advances and retracts the main body 821 along the extending direction. The drive mechanism 824 may be an actuator, an air cylinder, or the like, for example.

  When the drive mechanism 824 pushes the main body 821 toward the mounting stage 300, for example, the roller 825 rolls on the lower surface of the inclined plate 822 and the upper surface of the support plate 823, and moves toward the side where the separation distance between these surfaces is narrow. To do. Therefore, the roller 825 receives the reaction force from the inclined plate 822 and tries to push the support plate 823 downward. Here, since the transport plate 813 is slidably attached to the connecting shaft 818 and the guide shaft 813a is slidable in the through hole 812a, the transport plate 813 resists the biasing force of an elastic member (not shown). Then, it moves downward along the extending direction of the connecting shaft 818 and the guide shaft 813a. Thus, the transport plate 813 reaches the lowered position.

  When the drive mechanism 824 pulls the main body 821 toward the main lamination stage 700, for example, the roller 825 rolls on the lower surface of the inclined plate 822 and the upper surface of the support plate 823, and moves toward the side where the separation distance between these surfaces is wide. To do. Therefore, the roller 825 receives the urging force of an elastic member (not shown), and while the roller 825 is held between the inclined plate 822 and the support plate 823, the transport plate 813 extends the connection shaft 818 and the guide shaft 813a. Move upward along the current direction. Thus, the transport plate 813 reaches the raised position.

  The holding bodies 831 to 834 are attached to the transport plate 813 on the lower surface side of the transport plate 813. The holding bodies 831 to 834 are arranged in this order from the mounting stage 300 side toward the main stacking stage 700. Each of the holding bodies 831 to 834 is configured to hold the processed plate 10 on the lower surface side thereof. The holders 831 to 834 may have a function of adsorbing the processed plate 10 using, for example, a gas suction force. Specifically, as shown in FIG. 10, the holding body 831 includes an exhaust port 831a provided on the upper surface side thereof, a plurality of intake ports 831b provided on the lower surface side thereof, an exhaust port 831a and a plurality of exhaust ports 831a. It may include a flow path 831c provided so as to extend between the intake port 831b. The same applies to the holders 832 to 834.

  The pressure auxiliary body 840 is attached to the transport plate 813 on the lower surface side of the transport plate 813. The pressure auxiliary body 840 is located closer to the main lamination stage 700 than the holding body 834 (on the side away from the mounting stage 300).

  As shown in FIG. 9, the rotation mechanism 850 is provided on the upper portion of the holding body 832 in this embodiment. The rotation mechanism 850 operates based on an instruction signal from the controller 170 and rotates the holding body 832 around a virtual axis extending in the vertical direction.

  Intake portion 860 includes a pump 861 and a valve 862. As shown in FIG. 9, the pump 861 operates based on an instruction signal from the controller 170 and sucks gas through a pipe 863 connected to the pump 861. The pipe 863 is connected to the exhaust port of each holding body 831 to 834. The valve 862 is provided on the pipe 863. As shown in FIG. 9, the valve 862 can be opened and closed based on an instruction signal from the controller 170.

  As shown in FIGS. 8, 9, and 13, the pressure module 900 includes a drive mechanism 901, a support plate 902, and pressing shafts 903 and 904. The drive mechanism 901 is connected to the support plate 902. As shown in FIG. 9, the drive mechanism 901 operates based on an instruction signal from the controller 170 to move the support plate 902 up and down.

  The support plate 902 is a plate-like body having a rectangular shape, for example. The support plate 902 supports a pair of pressing shafts 903 and one pressing shaft 904. The pressing shafts 903 and 904 extend downward from the lower surface side of the support plate 902. In the present embodiment, the pair of pressing shafts 903 are arranged in a region near the main lamination stage 700 on the lower surface of the support plate 902. One pressing shaft 904 is disposed in a region near the mounting stage 300 on the lower surface of the support plate 902.

  As shown in FIG. 13, the pair of pressing shafts 903 are inserted through a pair of long holes 812 b provided in the transport plate 812. The pressing shaft 904 is inserted through a long hole 812 c provided in the transport plate 812 and a long hole 821 a provided in the main body 821. These long holes 812b, 812c, 821a all extend in the extending direction of the transport plate 812 and the main body 821. The long hole 812c is located between the pair of long holes 812c and overlaps with the long hole 821a when viewed from the vertical direction. The lower end surfaces of the pressing shafts 903 and 904 are all opposed to the upper surface of the transport plate 813.

  The controller 170 controls the manufacturing apparatus 100 partially or entirely. As illustrated in FIG. 14, the controller 170 includes a reading unit M1, a storage unit M2, a processing unit M3, and an instruction unit M4 as functional modules. These functional modules are merely the functions of the controller 170 divided into a plurality of modules for convenience, and do not necessarily mean that the hardware constituting the controller 170 is divided into such modules. Each functional module is not limited to what is realized by executing a program, and is realized by a dedicated electric circuit (for example, a logic circuit) or an integrated circuit (ASIC: Application Specific Integrated Circuit) in which this is integrated. Also good.

  The reading unit M1 reads a program from a computer-readable recording medium RM. The recording medium RM records a program for causing the manufacturing apparatus 100 to execute various operations. As the recording medium RM, for example, a semiconductor memory, an optical recording disk, a magnetic recording disk, or a magneto-optical recording disk may be used.

  The storage unit M2 stores various data. The storage unit M2 stores, for example, setting data input from an operator via an external input device (not shown), for example, in addition to the program read by the reading unit M1.

  The processing unit M3 processes various data. The processing unit M3, for example, based on various data stored in the storage unit M2, the rollers 121 and 122, the punching device 130, the annealing furnace 140, the temporary caulking removal device 150, the drive mechanisms 304, 524, 530, and 703. , 816, 824, 901, rotation mechanism 850, pump 861, valves 527, 529, 862, sensors 406, 704, 705, imaging device 602 or conveyors Cv1-Cv3 are generated.

  Based on the measurement data (thickness data of the processed plate 10) received from the sensor 406, the processing unit M3 determines whether or not it is necessary to roll over the processed plate 10 corresponding to the measurement data. The processing unit M3 generates an instruction signal for rotating the rotation mechanism 850 when the result of determination is that transshipment is necessary. The processing unit M3 determines whether or not the measurement load is equal to or greater than a predetermined value based on the measurement data received from the sensor 704 (load data on the movable plate 702). When the measurement load is less than the predetermined value as a result of the determination, the processing unit M3 generates an instruction signal for raising the movable plate 702 by the drive mechanism 703. The processing unit M3 determines whether or not the measurement distance is within a predetermined range based on the measurement data received from the sensor 705 (data on the distance from the sensor 705 to the movable plate 702). If the measurement distance is less than the predetermined range as a result of the determination, the processing unit M3 generates an instruction signal for further stacking the processed plate 10 on the movable plate 702. When the measurement distance exceeds the predetermined range as a result of the determination, for example, the processing unit M3 generates an instruction signal for notifying the operator of that fact.

  The instruction unit M4 outputs the signal generated in the processing unit M3 to the drive mechanisms 304, 524, 530, 703, 816, 824, 901, the rotation mechanism 850, the pump 861, the valves 527, 529, 862, and the sensors 406, 704. 705, to the imaging device 602 or the conveyors Cv1 to Cv3.

  The hardware of the controller 170 is configured by one or a plurality of control computers, for example. The controller 170 includes, for example, a circuit E1 shown in FIG. 15 as a hardware configuration. The circuit E1 may be composed of electric circuit elements (circuitry). Specifically, the circuit E1 includes a processor E2, a memory E3, a storage E4, a driver E5, and an input / output port E6. The processor E2 executes the program in cooperation with at least one of the memory E3 and the storage E4, and executes input / output of signals via the input / output port E6, thereby configuring each functional module described above. The driver E5 is a circuit that drives various devices of the manufacturing apparatus 100. The input / output port E6 performs input / output of signals between the driver E5 and the various apparatuses of the manufacturing apparatus 100.

  In the present embodiment, the manufacturing apparatus 100 includes one controller 170, but may include a controller group (control unit) including a plurality of controllers 170. When the manufacturing apparatus 100 includes a controller group, each of the above functional modules may be realized by one controller 170 or may be realized by a combination of two or more controllers 170. When the controller 170 is configured by a plurality of computers (circuit E1), each of the functional modules may be realized by one computer (circuit E1), or two or more computers (circuit E1). ) May be realized. The controller 170 may include a plurality of processors E2. In this case, each of the functional modules may be realized by one processor E2, or may be realized by a combination of two or more processors E2.

[Method for manufacturing stator core]
Then, with reference to FIG.5, FIG.9 and FIGS. 16-21, the manufacturing method of the stator laminated core 1 is demonstrated.

  First, the laminated body 30 is formed. Specifically, based on the instruction signal from the controller 170, the electromagnetic steel plate W is sent out to the punching device 130 by the sending device 120, and the processed portion of the electromagnetic steel plate W is punched into a predetermined shape by the punching device 130. Thereby, the punching member 40 is formed. By repeating this punching process, a plurality of punching members 40 are stacked by a predetermined number of sheets while being fastened by temporary caulking 42 to manufacture one stacked body 30. At this time, oil adheres to each punching member 40 constituting the laminated body 30.

  Subsequently, based on the instruction signal from the controller 170, the conveyor Cv1 conveys the laminate 30 discharged from the punching device 130 to the annealing furnace 140. The annealing furnace 140 anneals the stacked body 30 based on an instruction signal from the controller 170. Thereby, the oil adhering to each punching member 40 which comprises the laminated body 30 is removed. Thereafter, based on the instruction signal from the controller 170, the conveyor Cv2 conveys the annealed laminated body 30 discharged from the annealing furnace 140 to the temporary caulking removal device 150.

  Subsequently, the temporary caulking remover 150 removes the temporary caulking portion 31 from the stacked body 30 based on an instruction signal from the controller 170. For example, the temporary caulking removal device 150 fixes a portion that becomes the stator laminated core 1 in the laminated body 30 and applies a force to the temporary caulking portion 31 with a piston or the like in the laminating direction. Thereby, the temporary crimping part 31 is removed from the laminated body 30, and the temporary laminated body 50 by which the some processed board 10 was laminated | stacked in the state which the adjacent processed board 10 is not fastened is formed. Thereafter, based on the instruction signal from the controller 170, the conveyor Cv3 conveys the temporary laminate 50 discharged from the temporary caulking removal device 150 to the lamination device 160.

  Subsequently, the temporary laminate 50 is placed on the movable plate 303 of the placement stage 300 using a transport mechanism such as a human hand or a robot hand. Next, the stacking apparatus 160 is operated based on the instruction signal from the controller 170, and the holding bodies 831 to 834 and the pressure assisting body 840 are set to the first state (initial state) (see FIG. 16). In the first state, the transport plates 812 and 813 are located at the basic position, and the transport plate 813 is located at the raised position.

  Subsequently, the controller 170 instructs the stacking apparatus 160 to place the holding bodies 831 to 834 and the pressure assisting body 840 in the second state (see FIG. 17). In the second state, the transport plates 812 and 813 are located at the basic position and the transport plate 813 is located at the lowered position. Next, the controller 170 instructs the laminating apparatus 160 to drive the movable plate 303 by a predetermined amount (for example, the thickness of one processed plate 10) by the drive mechanism 304 as shown in FIG. The mechanism 703 raises the movable plate 702 by a predetermined amount (for example, the thickness of one processed plate 10). As a result, the lower surface of the holding body 831 comes into contact with the upper surface of the processed plate 10 that forms the uppermost layer of the temporary laminated body 50 placed on the movable plate 303. Details of the operation of the movable plate 702 will be described later. Next, the controller 170 instructs the laminating apparatus 160 to generate a negative pressure on the lower surfaces of the holding bodies 831 to 834 by the intake portion 860. Thereby, the processed plate 10 is adsorbed by the holding body 831.

  Subsequently, the controller 170 instructs the stacking apparatus 160 to raise the transport plate 813 while holding the processed plate 10 on the holding body 831, and to hold the holding bodies 831 to 834 and the pressure auxiliary body 840 in the first state. (See FIG. 19). At this time, the controller 170 instructs the laminating apparatus 160 to lower the movable plate 702 by a predetermined amount (for example, the thickness of one processed plate 10) by the drive mechanism 703 (see the figure). Details of the operation of the movable plate 702 will be described later. Next, the controller 170 instructs the stacking apparatus 160 to set the holding bodies 831 to 834 and the pressure assisting body 840 to the third state (see FIG. 9). In the third state, the transport plates 812 and 813 are positioned at the advancing position and the transport plate 813 is positioned at the ascending position.

  Subsequently, the controller 170 instructs the laminating apparatus 160 to lower the transport plate 813 while holding the processed plate 10 on the holding body 831, and to place the holding bodies 831 to 834 and the pressure auxiliary body 840 in the fourth state. (See FIG. 20). In the fourth state, the transport plates 812 and 813 are located at the advancing position and the transport plate 813 is located at the lowered position. Next, the controller 170 instructs the stacking device 160 to stop the intake operation by the intake unit 860. As a result, the adsorption of the processed plate 10 by the holding body 831 is released, so that the processed plate 10 is placed on the mounting plate 401 of the measurement stage 400. In the measurement stage 400, the thickness of the processed plate 10 is measured by the measurement unit 402. At this time, the controller 170 instructs the stacking device 160 to raise the movable plate 702 by a predetermined amount (for example, the thickness of one processed plate 10) by the drive mechanism 703 (see FIG. 21), and then the movable plate. 702 is lowered by a predetermined amount (for example, the thickness of one processed plate 10) (see FIG. 20). Details of the operation of the movable plate 702 will be described later.

  For example, the number of measurement points of the yoke piece 12 by the sensor 406 may be three according to the number of temporary crimps. The measurement points may be set every 120 ° around the central axis Ax. Thereby, the thickness of three places of the yoke piece part 12 is obtained. Note that the number of measurement points is not limited to three, and may be two or more. The measurement positions may be equidistant around the central axis Ax or may be any interval. When the sensor 406 measures the thickness of the processed plate 10, the sensor 406 transmits measurement data to the controller 170.

  When the measurement data of the processed plate 10 is received from the sensor 406, the controller 170 determines whether or not the processed plate 10 needs to be transposed. Specifically, the controller 170 first calculates the thickness difference of the processed plate 10. Subsequently, when the calculated thickness difference is equal to or less than a predetermined threshold, the controller 170 determines that the transposition of the processed plate 10 is unnecessary. On the other hand, if the calculated thickness difference exceeds a predetermined threshold value, the controller 170 determines that the processed plate 10 needs to be transposed, and the movable plate 702 of the stacking stage 700 is determined so far. An angle most suitable for canceling the stacking difference with respect to the aggregate of the processed plates 10 laminated thereon is calculated. When the processed plate 10 is the first one to be placed on the movable plate 702, the controller 170 does not need to determine whether or not the processed plate 10 needs to be transposed.

  Subsequently, the controller 170 instructs the stacking apparatus 160 to hold the processed plate 10 on any of the holding bodies, and hold the holding bodies 831 to 834 and the pressure auxiliary body 840 in the third state (FIG. 9). The first state (FIG. 16) is followed by the second state (FIG. 17). Next, similarly to the above, the movable plates 303 and 702 are raised by a predetermined amount, and a negative pressure is generated on the lower surfaces of the holding bodies 831 to 834 by the intake portion 860. As a result, the processed plate 10 constituting the uppermost layer of the temporary laminate 50 is adsorbed by the holding body 831, and the processed plate 10 whose thickness is measured in the measurement stage 400 is adsorbed by the holding body 832. If the controller 170 determines that the processed plate 10 needs to be rolled up, the rotating mechanism 850 determines that the processed plate according to the calculated angle when the holder 832 sucks the processed plate 10. 10 may be rotated.

  Subsequently, the controller 170 instructs the laminating apparatus 160 to hold the processing plates 10 by the holding bodies 831 and 832 and hold the holding bodies 831 to 834 and the pressure auxiliary body 840 in the same manner as described above. This state (FIG. 16) and the third state (FIG. 9) are followed by the fourth state (FIG. 20). In the fourth state, in the supply stage 500, when the adsorption of the processed plate 10 by the holding body 832 is released, the processed plate 10 is mounted on the mounting plate 501 of the supply stage 500. In the supply stage 500, the adhesive 20 is supplied from the supply plate 510 to the lower surface of the processed plate 10. Here, the supply plate 510 is positioned at the supply position by the drive mechanism 530. At this time, similarly to the above, the movable plate 702 is raised and lowered by a predetermined amount (see FIGS. 21 and 20).

  Subsequently, the controller 170 instructs the stacking apparatus 160 to hold the processed plate 10 on any of the holding bodies, and hold the holding bodies 831 to 834 and the pressure auxiliary body 840 in the third state (FIG. 9). The first state (FIG. 16) is followed by the second state (FIG. 17). Next, similarly to the above, the movable plates 303 and 702 are raised by a predetermined amount, and a negative pressure is generated on the lower surfaces of the holding bodies 831 to 834 by the intake portion 860. As a result, the processed plate 10 that forms the uppermost layer of the temporary laminate 50 is adsorbed by the holding body 831, and the processed plate 10 whose thickness is measured in the measurement stage 400 is adsorbed by the holding body 832, and the supply stage 500. Then, the processed plate 10 supplied with the adhesive 20 is adsorbed by the holding body 833.

  Subsequently, the controller 170 instructs the laminating apparatus 160 to raise the transport plate 813 while holding the processed plates 10 on the holders 831 to 833, and to move the holders 831 to 834 and the pressure auxiliary body 840 to the first. The first state (FIG. 16) and the third state (FIG. 9) are followed by the fourth state (FIG. 20). In the fourth state, in the inspection stage 600, when the suction of the processed plate 10 by the holding body 833 is released, the processed plate 10 is placed on the mounting plate 601 of the inspection stage 600. In the inspection stage 600, it is inspected whether or not the adhesive 20 is properly applied to the lower surface of the processed plate 10. At this time, similarly to the above, the movable plate 702 is raised and lowered by a predetermined amount (see FIGS. 21 and 20).

  Subsequently, the controller 170 instructs the stacking apparatus 160 to hold the processed plate 10 on any of the holding bodies, and hold the holding bodies 831 to 834 and the pressure auxiliary body 840 in the third state (FIG. 9). The first state (FIG. 16) is followed by the second state (FIG. 17). Next, similarly to the above, the movable plates 303 and 702 are raised by a predetermined amount, and a negative pressure is generated on the lower surfaces of the holding bodies 831 to 834 by the intake portion 860. As a result, the processed plate 10 that forms the uppermost layer of the temporary laminate 50 is adsorbed by the holder 831, and the processed plate 10 whose thickness is measured by the measurement stage 400 is adsorbed by the holder 832 and bonded by the supply stage 500. The processed plate 10 supplied with the agent 20 is adsorbed by the holding body 833, and the processed plate 10 inspected in the inspection stage 600 is adsorbed by the holding body 834.

  Subsequently, the controller 170 instructs the stacking apparatus 160 to hold the holders 831 to 834 and the pressure auxiliary body 840 in the first state (FIG. 16) while holding the processed plates 10 on the holders 831 to 834 respectively. ), Through the third state (FIG. 9), to the fourth state (FIG. 20). In the fourth state, in the present lamination stage 700, the movable plate 702 is raised by a predetermined amount as described above (see FIG. 21). For this reason, the aggregate of the processed plates 10 already stacked on the movable plate 702 of the main stacking stage 700 is pressed against the processed plate 10 adsorbed by the holding body 833. Thereby, the processed board 10 adsorbed by the holding body 833 is bonded to the processed board 10 that is the uppermost layer in the aggregate. At this time, the controller 170 instructs the stacking device 160 to lower the pressing shafts 903 and 904 by the drive mechanism 901. As a result, the pressing shafts 903 and 904 are pressed against the transport plate 813. Therefore, the assembly of the processed plates 10 stacked on the movable plate 702 is sandwiched between the movable plate 702 and the holding body 834. When the adsorption of the processed plate 10 by the holding body 833 is released, the movable plate 702 is lowered by a predetermined amount (see FIG. 20). Thereafter, the driving mechanisms 703 and 901 operate even when the holding bodies 831 to 834 and the pressure assisting body 840 are in the second state (FIG. 17), and press the pressing shafts 903 and 904 against the conveying plate 813. . Therefore, the assembly of the processed plates 10 stacked on the movable plate 702 is also sandwiched between the movable plate 702 and the pressure auxiliary body 840. As a result, a sufficient load can be applied to the aggregate.

  Note that when the processed plate 10 is first placed on the movable plate 702, the adhesive 20 is not supplied to the processed plate 10 in the supply stage 500. At this time, the supply plate 510 is positioned at the retracted position by the drive mechanism 530.

  The above processing is repeated for each processed plate 10 of the temporary stacked body 50, whereby each processed plate 10 is stacked one by one on the movable plate 702 of the main stacking stage 700. As a result, the stator laminated iron core 1 in which a plurality of processed plates 10 are stacked and adjacent processed plates 10 are joined together by an adhesive is completed.

  At this time, the sensor 705 continuously measures the distance data from the sensor 705 to the movable plate 702, and the stator laminated core 1 has reached a desired thickness (the desired number of laminated processed plates 10). Judgment whether or not. The stack thickness of the stator laminated core 1 obtained here may be used when the stator laminated iron core 1 to be manufactured next is rolled or laminated. For example, when the stator laminated core 1 does not reach a desired thickness, or when the thickness deviation of the stator laminated core 1 exceeds a predetermined value, an additional stack of new processed plates 10 in consideration of transposition is added. You may go. Thereby, the stack thickness or stack thickness deviation of the stator laminated core 1 can be easily adjusted, and the occurrence of defects in the stator laminated core 1 can be suppressed.

[Action]
Incidentally, the oil removal process and the adhesive 20 supply process are usually slower than the process of punching the magnetic steel sheet W in the punching device 130 to form the punching member 40. However, in this embodiment as described above, after forming the laminated body 30 in the punching device 130 and further removing the temporary crimping portion 31 to form the temporary laminated body 50, the bonding and lamination of the processed plates 10 are performed. Is performed outside the punching device 130 (outside the mold). That is, in this embodiment, the annealing furnace 140 and the supply stage 500 are outside the punching device 130. Therefore, it is not necessary to provide a mechanism for supplying the adhesive 20 in the punching device 130. Therefore, the punching device 130 can be reduced in size, and by providing a plurality of annealing furnaces 140 and supply stages 500 independently of the punching device 130, the forming process of the processed plate 10 can be performed at a high speed in the punching device 130. As a result, the overall throughput can be improved. In addition, since the mechanism for supplying the adhesive 20 is generally less expensive than the punching device 130, the cost is lower than when a plurality of punching devices 130 are used to improve the overall throughput. Is planned. As mentioned above, according to this embodiment, it becomes possible to manufacture the stator laminated core 1 efficiently at low cost.

  In the present embodiment, the holding body 831 to 834 is repeatedly held and released by the holding bodies 831 to 834 while the transport body reciprocates above the stages 300 to 700, whereby the one processing board 10 is The stages 300 to 700 are moved sequentially. Therefore, the processed plate 10 is quickly conveyed to the downstream stage. Therefore, the stator laminated iron core 1 can be manufactured more efficiently. In addition, since it is not necessary to provide a transport mechanism for the processed plate 10 between adjacent stages, the number of mechanisms required to move the processed plate 10 can be reduced. Therefore, the manufacturing apparatus 100 itself can be manufactured at a low cost.

  In this embodiment, the stator laminated iron core 1 is obtained by bonding the adjacent processed plates 10 with the adhesive 20. Therefore, compared with the case where the processed plates 10 are fastened by caulking, welding, or the like, the magnetic characteristics are less likely to deteriorate. Therefore, it is possible to improve motor characteristics by manufacturing a motor using such a stator laminated core 1. Particularly, in recent years, the thickness of the magnetic steel sheet W to be processed has been reduced (for example, from about 0.2 mm to 0.25 mm or less), and the processed plate 10 obtained from such a thin electromagnetic steel sheet W is extremely deformed. Since it is easy to do, the request | requirement which joins the processed boards 10 only by adhesion | attachment has increased. Therefore, according to the present embodiment, it is possible to satisfy such a demand while manufacturing the stator laminated core 1 efficiently at a low cost.

  In the present embodiment, based on the thickness of the processed plate 10 measured by the sensor 406, the controller 170 determines whether or not it is necessary to roll over the processed plate 10. Therefore, it is determined whether or not the rolling is necessary for each processed plate 10. Therefore, since the degree of freedom of rolling is increased, the dimensional accuracy of the final stator laminated core 1 can be improved.

By the way, when the adhesive 20 is excessively supplied to the processed plate 10, the adhesive 20 protrudes from between the processed plates 10 when the plurality of processed plates 10 are stacked in the main stacking stage 700. obtain. When the supply of the adhesive 20 to the processed plate 10 is too small, the bonding force of the adhesive 20 cannot be sufficiently obtained, and the stator laminated core 1 may be separated after completion. However, in the present embodiment, in the inspection stage 600, for example, the processed plate 10 in which the supply amount of the adhesive 20 is excessive or excessive can be detected. For this reason, it is possible to suppress the occurrence of defects in the stator laminated core 1 due to the supply failure of the adhesive 20.

  By the way, when the processed plate 10 held by the holding body 834 is stacked on the other processed plate 10 on the main stacking stage 700, the reaction force acts on the holding body 834, and the conveying plate 813 is displaced via the holding body 834. There is a concern. At this time, the force acting on the assembly of the processed plates 10 held between the holding body 834 and the movable plate 702 may be reduced. However, in the present embodiment, the pressurizing module 900 (pressing shafts 903 and 904) presses the transport plate 813 from the side opposite to the main stacking stage 700. Therefore, the reaction force generated on the transport plate 813 is canceled by the pressurizing module 900, so that the displacement of the transport plate 813 is suppressed. Therefore, a sufficiently large force can be applied to the assembly of the processed plates 10 held between the holding body 834 and the movable plate 702. As a result, one processed plate 10 can be firmly bonded to another processed plate 10 with the adhesive 20.

  In the present embodiment, the pressurizing module 900 pressurizes the assembly of the processed plates 10 stacked on the main stacking stage 700 via the transport plate 813 and the pressurizing auxiliary body 840. Therefore, even when the holding body 834 moves from the main lamination stage 700 to the inspection stage 600, the pressure auxiliary body 840 presses the transport plate 813 from the side opposite to the main lamination stage 700. Therefore, one processed plate 10 can be more firmly bonded to the other processed plate 10 with the adhesive 20.

  In the present embodiment, after the movable plate 303 is raised by a predetermined amount (for example, the thickness of one processed plate 10) by the drive mechanism 304, the uppermost layer of the temporary laminate 50 on the raised movable plate 303 is moved. One processed plate 10 is held (adsorbed) from the movable plate 702 to the holding body 831. In the present embodiment, after the processed plate 10 held by the holding body 834 is placed on the movable plate 702, the movable plate 702 is lowered by a predetermined amount (for example, the thickness of one processed plate 10). . Therefore, the position where the holding body 831 holds the processed plate 10 from the movable plate 303 can be set to a fixed height position, and the position where the holding body 834 places the processed plate 10 on the movable plate 702 is fixed. Can be at a height position of Accordingly, it is not necessary to individually move the holding bodies 831 and 834 included in the transport module 800 up and down, so that the control can be simplified.

  In the present embodiment, the opening area of the plurality of discharge ports 514 provided in the supply plate 510 increases from the upstream side to the downstream side of the flow path Fc. For this reason, the discharge amount of the adhesive 20 discharged from the downstream discharge port 514 and the discharge amount of the adhesive 20 discharged from the upstream discharge port 514 tend to be substantially equal. . Accordingly, the processed plates 10 can be joined appropriately and firmly, and the flatness of the stator laminated core 1 can be improved. In this case, even if the volume of the liquid reservoir 511 is reduced, pulsation hardly occurs. Furthermore, since the volume of the liquid reservoir 511 is reduced, cleaning during maintenance is facilitated, and the amount of the adhesive 20 discarded from the liquid reservoir 511 during maintenance can be reduced.

  In this embodiment, after forming the laminated body 30 in the punching device 130, oil removal of the laminated body 30 and adhesion and rolling of each processed plate 10 are performed outside the punching device 130. Therefore, it is not necessary to provide a mechanism for removing the oil, a mechanism for supplying the adhesive 20, and a mechanism for rolling the processed plate 10 in the punching device 130. Accordingly, the punching device 130 can be reduced in size. As a result, when the punching member 40 is formed from the electromagnetic steel sheet W in a plurality of rows, a so-called “multi-row” punching device 130, or the punching becomes the stator laminated core 1 and the rotor laminated core. Even when the member 40 is formed from the same electromagnetic steel sheet W, ie, a so-called “co-upper” punching device 130, it is possible to suppress an increase in the size of the punching device 130.

  By the way, in the method described in Patent Document 1, an adhesive is used in the mold. Therefore, when an anaerobic adhesive is used, metal ion bonding occurs in the area where the air in the mold is blocked, and the adhesive adheres to the mold, which necessitates cleaning of the mold. Moreover, when a thermosetting adhesive is used, it is necessary to install a heating device in the mold, which increases the size of the mold. Furthermore, when a two-component mixed adhesive is used, in order to introduce the two solutions into the mold, it is necessary to devise a coating mechanism and piping installed in the mold. Therefore, in the method described in Patent Document 1, the type of adhesive that can be used may be restricted. On the other hand, in this embodiment, the supply stage 500 of the adhesive 20 is outside the punching device 130 (outside the mold). Therefore, according to the present embodiment, the anaerobic adhesive 20 can be used as long as no metallic member is disposed around. In addition, according to the present embodiment, even if thermosetting or two-component mixed adhesive 20 is used, there is no restriction on installation with a mold. Therefore, compared with the method described in Patent Document 1, the present embodiment has fewer restrictions on the selection of the adhesive 20 and can be flexibly handled.

  In the present embodiment, the laminate 30 is formed by the punching device 130, and then the oil is removed from the laminate 30 in the annealing furnace 140. Therefore, it is suppressed that the processed plates 10 adhere to each other due to the surface tension of the oil. Therefore, it becomes easy to take out the processed plates 10 one by one from the temporary laminate 50 in subsequent steps. Further, since the oil is removed from the entire laminate 30, the oil can be removed more efficiently than when the oil is removed from each processed plate 10. Furthermore, since the oil is removed from the laminated body 30, the adhesive performance of the adhesive 20 is hardly affected.

  By the way, when the punching device 130 punches the electromagnetic steel sheet W to form the punching member 40, the punching member 40 is distorted in the process of punching the peripheral edge of the punching member 40 from the electromagnetic steel sheet W. If a motor is manufactured using the stator laminated core 1 obtained from the punching member 40 having distortion, the characteristics of the motor may be affected. However, in this embodiment, the oil adhering to the laminated body 30 is removed by annealing the laminated body 30. Therefore, oil removal and strain relief from the punching member 40 are performed simultaneously. Therefore, the stator laminated iron core 1 can be manufactured more efficiently. On the other hand, in the method described in Patent Document 1, the metal plate after the adhesive is applied is punched out and laminated while being adhered to other punched members with the adhesive. Therefore, when it is going to anneal the obtained laminated body, an adhesive agent will also be exposed to high temperature (for example, about 750 to 800 degreeC) for a long time (for example, about 1 hour). An adhesive having heat resistance that can withstand the annealing temperature does not exist at the time of filing of the present application or is extremely difficult to obtain. Therefore, in the method described in Patent Document 1, the punching member cannot be annealed, and the distortion of the punching member cannot be reduced. However, in this embodiment, the supply unit 162 of the adhesive 20 is outside the punching device 130 (outside the mold), and the adhesive is supplied to the processed plate 10 after the laminated body 30 is annealed. It is possible to reduce the restrictions on the selection.

  In the present embodiment, the stacked body 30 is obtained by stacking the punching members 40 while being fastened together by the temporary caulking 42. Therefore, a plurality of punched members 40 can be handled as the laminated body 30 in an annealing process by the annealing furnace 140. Moreover, in this embodiment, the temporary crimping part 31 is removed from the laminated body 30 after the annealing process of the laminated body 30. FIG. Therefore, there is no temporary caulking 42 in the stator laminated core 1 that is the final product, and the processed plates 10 are joined together by an adhesive. Therefore, it is possible to achieve both improvement in ease of handling in the manufacturing process of the stator laminated core 1 and improvement in motor characteristics.

  By the way, as shown in FIG. 6, when the electromagnetic steel sheet W is punched with the punch 133, the electromagnetic steel sheet W is stretched between the punch 133 and the die 132a in the punching process, and is punched from the electromagnetic steel sheet W. Forty dimensions may be larger than the die 132a. Therefore, when the punch 133 moves upward, the punching member 40 may be bent in a mountain shape in the die 132a. In this case, in order to bond the punching members 40 against the deformation of the punching member 40 when trying to bond the punching members 40 with an adhesive in the die 132a as in the method described in Patent Document 1. In addition, a large amount of adhesive may be required. Then, a thick film-like adhesive layer is interposed between the punching members 40, and the flatness or space factor of the stator laminated core 1 finally obtained as a product (the entire stator laminated iron core 1) The percentage of the volume occupied by the volume of the processed plate 10 is referred to, and this value decreases as the amount of the adhesive 20 used increases.). However, in the present embodiment, the processed plates 10 are taken out one by one from the temporary laminate 50 after being discharged from the punching device 130 and stacked, so that the processed plates 10 are not restrained by the die 132a. Therefore, the amount of the adhesive 20 for bonding the processed plates 10 can be reduced, and the flatness or space factor of the stator laminated core 1 finally obtained as a product can be increased. Furthermore, the parallelism and perpendicularity of the stator laminated core 1 are increased, and interference with the rotor laminated core disposed in the through hole 1a of the stator laminated core 1 is suppressed, and the stator laminated core 1 and Assembling with the rotor laminated iron core can be easily performed.

  By the way, in the method of patent document 1, the metal plate after apply | coating the adhesive is punched out, and it laminates | stacks, making it adhere | attach with another punching member with an adhesive agent. Therefore, when the manufacturing apparatus stops for some reason during the stacking of the punching members, the adhesive solidifies over time, and a new punching member can be bonded to the punching members stacked halfway. become unable. Therefore, all of the punched members stacked halfway must be discarded. However, in this embodiment, since the adhesive 20 is supplied to each processed plate 10, even if the manufacturing apparatus 100 is stopped for some reason and the adhesive 20 is solidified, one processed plate is used. Just 10 is discarded. Therefore, according to this embodiment, it is possible to reduce the material cost and improve the yield, and to suppress the occurrence of defects in the stator laminated core 1.

[Other Embodiments]
As mentioned above, although embodiment concerning this indication was described in detail, you may add various deformation | transformation to said embodiment within the range of the summary of this invention. For example, you may remove oil from the laminated body 30 by methods other than annealing. For example, the laminated body 30 is heated at a temperature that does not lead to annealing (for example, about 100 ° C. to 550 ° C.) and a time (for example, about 30 minutes to 1 hour) (for example, a burn-off process using a burn-off furnace, a bluing process using a bluing furnace) Or the laminate 30 may be impregnated with a solvent (for example, acetone), or the oil adhering to the laminate 30 may be blown off with air. Or you may remove oil from the laminated body 30 by leaving the laminated body 30 to stand in normal temperature environment for a predetermined time (for example, 1 day), and air-drying.

  The laminating apparatus 160 may further include an inspection stage for inspecting whether or not the processed plate 10 has a defect (for example, a scratch, a dent, a dent, a punched residue, or the like). Specifically, a defect in the processed plate 10 may be detected by imaging the processed plate 10 with an imaging device (for example, a camera) at the inspection stage, and the controller 170 performing image processing on the captured image. When it is detected that the processed plate 10 is defective, the processed plate 10 may be discarded. Moreover, when the defect of the processed plate 10 is a punched residue remaining on the processed plate 10, the punched residue may be removed by air blow or the like. The inspection stage may also serve as another inspection. In addition, in the method described in Patent Document 1, since a laminated body in which individual punching members are bonded and stacked is discharged from the mold, it is confirmed whether any punching member is defective. I can't.

  The laminating apparatus 160 may further include an inspection stage for inspecting the shape or size of the processed plate 10. Specifically, the processed plate 10 is imaged with an imaging device (for example, a camera) at the inspection stage, and the processed image is processed by the controller 170, so that the processed plate 10 has a shape or size according to the design. It may be determined whether or not. The shape or dimension to be confirmed may be limited to an important part of the processed plate 10. The inspection stage may also serve as another inspection. In the method described in Patent Document 1, since the stacked body in which the individual punching members are bonded and laminated is discharged from the mold, the shape or size of the individual punching members cannot be confirmed.

  The ends of the two coil members 111 may be joined together by welding. In this case, when the welded portion between the coil members 111 is punched by the punch 133, the punching member 40 including the welded portion is mixed in the laminate 30. If a motor is manufactured using the stator laminated core 1 obtained from such a laminated body 30, the characteristics of the motor may be affected. Therefore, as a first means, the laminating apparatus 160 may further include an inspection stage for inspecting whether or not the welded portion is present on the processed plate 10. Specifically, the processed plate 10 is imaged by an imaging device (for example, a camera or the like) at the inspection stage, and the controller 170 performs image processing to determine the presence or absence of a weld on the processed plate 10. Also good. When it is determined that the processed plate 10 has a welded portion, the processed plate 10 may be discarded. Alternatively, as a second means, the punch 133 (a region corresponding to the outer shape of the punching member 40 or a punching member is provided upstream of the punch 133 so that the punch 133 does not punch the welded portion between the coil members 111. The welded portion may be punched in advance with an auxiliary punch having a larger diameter than the outer shape of 40 and the pilot hole. In this case, even if the region corresponding to the welded portion of the electromagnetic steel sheet W reaches the punch 133, since the through hole exists in the region of the electromagnetic steel sheet W, the punch 133 is swung away, and the punching member 40 Is not formed. According to the above, since only the region where the welded portion exists in the electromagnetic steel sheet W is discarded, the material loss can be minimized. Therefore, cost reduction and yield improvement can be achieved. In the method described in Patent Document 1, since the laminated body in which the individual punching members are bonded and laminated is discharged from the mold, it is determined in advance whether any of the punching members has a welded portion. It cannot be confirmed. Therefore, in the method described in Patent Document 1, it is necessary to discard all the laminated bodies in which the punching members including the welded portion are mixed, which may lead to an increase in material costs and a decrease in yield.

  In the supply stage 500, before or after supplying the adhesive 20 to the processed plate 10, an adhesive auxiliary (for example, a curing initiator, a curing accelerator, a primer, etc.) is applied to the processed plate 10 in order to improve the adhesive performance. May be supplied. In the case where the adhesion assistant is supplied to the processed board 10 before the adhesive 20 is supplied, the adhesive 20 is supplied so as to overlap the adhesion assistant in the process after the adhesion assistant is supplied to the processed board 10. Also good. On the other hand, in the case where the adhesion assistant is supplied to the processed board 10 after the adhesive 20 is supplied, the adhesion assistant is supplied so as to overlap the adhesive 20 in the process after the adhesive 20 is supplied to the processed board 10. May be. Even in the case of using an adhesion aid, according to the above embodiment, the supply unit of the adhesion aid is outside the die-cutting device 130 (outside the mold), and the adhesion aid is processed into the processed plate 10 after annealing the laminate 30. Therefore, it is possible to reduce the restriction on the selection of the adhesion auxiliary agent. In addition, when the adhesive auxiliary agent is used and the deterioration of the adhesive performance of the adhesive 20 can be suppressed even when the oil remains on the processed plate 10, the heat treatment of the laminated body 30 by annealing or the like is omitted. May be.

  The adhesive 20 may be supplied to the processed plate 10 in a spot shape or may be applied with spread. The amount of the adhesive 20 supplied to the lower surface of the processed plate 10 may be such that it does not protrude between the processed plates 10 due to the pressure when the plurality of processed plates 10 are stacked.

  When supplying the adhesion assistant to the processed plate 10 after the supply of the adhesive 20, the adhesion assistant may be applied to the processed plate 10 or sprayed. In this case, the adhesion assistant may be sprayed from the upper side of the processed plate 10 or may be sprayed from the lower side of the processed plate 10. The adhesion auxiliary agent may be supplied to the processed plate 10 by pressing a flexible porous body (for example, sponge or the like) in which the auxiliary agent is absorbed against the processed plate 10.

  The adhesion assistant may be supplied to the processed plate 10 in a spot shape or may be applied with spread.

  The laminating apparatus 160 may further include a stage for inspecting the position and / or dimension (diameter) of the adhesion aid supplied to the processed plate 10. Specifically, the processing board 10 is imaged by an imaging device (for example, a camera or the like) at the inspection stage, and the controller 170 performs image processing on the captured image, so that the supplied adhesive auxiliary agent is in a position along the design. It may be determined whether or not the size is in line with the design. In this case, the adhesion assistant may contain a fluorescent substance (for example, a substance that emits light in response to black light), and the visibility of the adhesion assistant supplied to the processed plate 10 may be improved. The supply surface of the adhesion auxiliary agent is inspected, and when the adhesion auxiliary agent is not in a desired position or size, such a processed plate 10 may be discarded, or the adhesion auxiliary agent is again applied to the processed plate 10. You may supply. If it does as mentioned above, it will become possible to control generating of the fault of stator lamination iron core 1 resulting from supply failure of an adhesion assistant. Specifically, it becomes difficult for the adhesion assistant to protrude from between the processed plates 10 due to the pressure when the plurality of processed plates 10 are stacked.

  The number of laminated processing plates 10 constituting the stator laminated iron core 1 may be the same as or different from the number of laminated processing plates 10 constituting the temporary laminate 50 discharged from the temporary caulking removal device 150. Good.

  In the above embodiment, the processed plates 10 are taken out from the temporary laminate 50 one by one and the adhesive 20 is supplied to each processed plate 10 and then the processed plates 10 are stacked one by one. The block bodies (iron core members) in which the processed plates 10 are laminated and joined to each other are taken out one by one, the adhesive 20 is supplied to each block body, and the block bodies are laminated one by one. May be. In this case, the plurality of processed plates 10 constituting the block body may be fastened to each other by the temporary caulking portion 31, or may be fastened to each other by caulking provided on the yoke piece portion 12 or the teeth piece portion 13. Alternatively, the outer peripheral surfaces may be fastened together by welding. In the measurement stage 400, after the thickness of the block body is measured, it is determined whether or not the transposition is necessary for each block body. In the supply stage 500, the adhesive 20 is supplied to the lower surface of the block body.

  In the supply plate 510, the form of the flow path Fc from the inlet 513 to each discharge port 514 is not limited to that of the above embodiment. As the form of the flow path Fc, for example, the discharge amount of the adhesive 20 discharged from each discharge port 514 may be set to be uniform. Specifically, as shown in FIG. 22, the opening areas of the respective outlets 514 are substantially the same, and as they go from the inlet 513 to the respective branch paths 512 (as they go to the downstream side of the flow path Fc). The form of the flow path Fc may be set so that the flow path area of the flow path Fc is reduced. In this case, since the flow velocity increases toward the downstream side of the flow path Fc, the discharge amount of the adhesive discharged from the downstream discharge port 514 and the discharge port 514 on the upstream side tend to decrease the flow velocity. The discharge amount of the adhesive tends to be substantially uniform. Accordingly, the processed plates 10 can be joined appropriately and firmly, and the flatness of the stator laminated core 1 can be improved.

  As shown in FIG. 23, the temporary laminate 50 is configured by stacking a plurality of processed plates 10 so that the cutout portions 12a (engaging portions) do not overlap between the processed plates 10 adjacent in the stacking direction. May be. In this case, as shown in FIG. 24, when the work plate 10 that is the uppermost layer of the temporary laminate 50 placed on the movable plate 303 of the placement stage 300 is attracted by the holding body 831, The combined module 1000 may be used. The engagement module 1000 includes an engagement piece 1001 configured to be engageable with the notch 12a, and a drive mechanism 1002. The drive mechanism 1002 operates based on an instruction signal from the controller 170, and is configured to bring the engagement piece 1001 close to and away from the notch 12a (processed plate 10). As shown in FIG. 24A, when the front end of the engagement piece 1001 is inserted into the notch 12a of the processed plate 10 forming the uppermost layer, and the notch 12a and the engagement piece 1001 are engaged, the engagement is achieved. The tip of the piece 1001 presses the processed plate 10 immediately below it. That is, the engagement piece 1001 restricts the upward movement of the processed plate 10 immediately below the uppermost layer. Therefore, as shown in FIG. 24B, the uppermost processed plate 10 and the other processed plates 10 can be easily and reliably separated. In addition, when the process board 10 is provided with the processus | protrusion (engagement part) which protrudes to radial direction instead of the notch part 12a, the engagement piece 1001 is made into the processus | protrusion of the process board 10 which makes a direct lower layer. By engaging, the upward movement of the processed plate 10 other than the uppermost layer can be restricted by the engagement piece 1001.

  As illustrated in FIG. 25, the stacking apparatus 160 may not include the pressure assisting body 840.

  The laminating apparatus 160 may not have the pressure module 900.

  In the above-described embodiment, after the movable plate 303 is raised by a predetermined amount (for example, the thickness of one processed plate 10) by the driving mechanism 304 in the mounting stage 300, the temporary laminate on the raised movable plate 303. One processed plate 10 which is the uppermost layer among 50 is held from the movable plate 702 to the holding body 831. Instead, the holder 831 is lowered by the drive mechanism 824 so that the holder 831 comes into contact with the one processed plate 10 that is the uppermost layer of the temporary laminate 50 on the movable plate 303, and the one processed plate is used. 10 is held by the holding body 831, the holding body 831 is raised by the driving mechanism 824, and the movable plate 303 is raised by a predetermined amount (for example, the thickness of one processed plate 10) by the driving mechanism 304. Good.

  The laminating apparatus 160 may have first to Nth stages (N is a natural number of 3 or more) in order to perform various processes on the processed plate 10. In this case, the first to (N-1) th holding bodies are attached to the transport plate 813. Among the first to (N-1) -th holding bodies, the n-th holding body (where n is a natural number of 1 to N-1) holds the processed plate 10 and the n-th stage adjacent to each other. Reciprocate between n + 1 stages. The mounting stage 300, the supply stage 500, and the main stacking stage 700 are arranged in this order. The measurement stage 400 only needs to be positioned upstream of the supply stage 500. The inspection stage 600 only needs to be positioned downstream of the supply stage 500.

  At least one insertion pin having an outer shape corresponding to the slot 14 of the processed plate 10 may be provided on the fixed plate 701 together with or instead of the guide member 706. The insertion pin is disposed at a position corresponding to the slot 14 on the fixed plate 701. In this case, the processed plates 10 are sequentially stacked on the movable plate 702 so that the insertion pins are inserted into the corresponding slots 14. Therefore, simultaneously with the lamination of the processed plates 10, the processed plate 10 is positioned at a predetermined position. Further, when punched debris is mixed in the slot 14, the punched debris is discharged to the outside by the insert pin 163 c when the insert pin 163 c is inserted into the slot 14. Accordingly, whether or not there is any deviation in the plane of the punching member 40 when the processed plates 10 are stacked, or whether or not punched residue remains in the slots 14 is separately inspected after stacking the processed plates 10 ( This inspection is sometimes referred to as “gauge through inspection”). As a result, the stator laminated core 1 can be manufactured more efficiently.

  The present invention may be applied not only to the stator laminated core 1 but also to the rotor laminated core.

  In the above embodiment, the case of punching one electromagnetic steel sheet W has been described. However, the present invention may be applied to the case of punching a plurality of electromagnetic steel sheets W simultaneously.

DESCRIPTION OF SYMBOLS 1 ... Stator laminated iron core, 10 ... Work plate (iron core member; Punching member), 20, 20a, 20b ... Adhesive, 30 ... Laminated body, 31 ... Temporary crimping part, 40 ... Punching member, 41 ... Temporary crimping Pieces 42... Temporary caulking 42 a Bending portion 100 Stator laminated core manufacturing device 130 Punching device (mold) 160 ... Laminating device 170 Controller (control unit) 300 Placement stage , 303: movable plate (first lifting body), 304: driving mechanism (first lifting mechanism), 400 ... measurement stage, 406 ... sensor, 500 ... supply stage, 510 ... supply plate (supply member), 514 ... Discharge port, 520 ... liquid feeding unit, 600 ... inspection stage, 700 ... main lamination stage, 702 ... movable plate (second elevating body), 703 ... drive mechanism (second elevating mechanism), 800 ... transport module, 810 ... drive 820: Driving unit, 831-834 ... Holding body, 812, 813 ... Conveying plate (conveying body), 816, 824 ... Driving mechanism, 850 ... Rotating mechanism, 840 ... Pressurizing auxiliary body, 900 ... Pressure module, 1000 ... engaging module, 1001 ... engaging piece, Fc ... flow path, W ... electromagnetic steel sheet.

Claims (10)

First to Nth stages (N is a natural number of 3 or more) arranged in this order along a predetermined direction;
A transfer module disposed above these to extend across the first to Nth stages;
A control unit,
In the transport module, an iron core member made of a single punching member in which a metal plate is punched in a predetermined shape by a die or a core member made of a block body in which a plurality of the punching members are joined to each other in a predetermined direction. Configured to transport,
The first stage is a mounting stage that is positioned on the most upstream side in the transport direction of the core member by the transport module and on which a stacked body in which the core member is temporarily stacked is mounted,
The Mth stage (M is a natural number of any one of 2 to N-1) is a supply stage configured to be able to supply an adhesive to the iron core member,
The Nth stage is a main lamination stage on which the iron core member, which is located on the most downstream side in the transport direction and supplied with an adhesive, is laminated,
The transport module is
First to (N-1) th holding bodies configured to hold the iron core member;
A carrier to which any of the first to N-1th holders is attached;
A drive mechanism for moving the transport body in a horizontal direction and a vertical direction,
The control unit controls the transport module to hold one iron core member by the n-th (n is a natural number of 1 to N-1) holding body, and nth stages adjacent to each other. And the n + 1 stage are moved so that the n-th holding body reciprocates, thereby forming the uppermost layer of the stacked body placed on the placing stage. An apparatus for manufacturing a laminated core, which executes a first process of placing iron core members one by one on the first to Nth stages in this order. Including first to Nth stages (N is a natural number of 4 or more) arranged in this order along a predetermined direction;
The L-th stage (L is a natural number of any one of 2 to N-2) is a measurement stage configured to be able to measure the thickness of the iron core member,
The M-th stage (M is a natural number satisfying any of 3 to N-1 and satisfying L <M) is a supply stage configured to be capable of supplying an adhesive to the iron core member,
The transport module further includes a rotation mechanism that rotates the iron core member between the measurement stage and the main lamination stage,
The controller is
After the thickness of one iron core member is measured in the measurement stage and before the one iron core member is laminated to another iron core member in the main lamination stage, the iron core member by the measurement stage is used. A second process for determining whether or not the one core member is required to be transposed based on the measurement result of the thickness;
2. The apparatus according to claim 1, further comprising: a third process of controlling the rotation mechanism based on a determination result in the second process to rotate the iron core member that requires rolling by a predetermined angle. Including first to Nth stages (N is a natural number of 4 or more) arranged in this order along a predetermined direction;
The M-th stage is a supply stage configured to be able to supply an adhesive to the iron core member,
The K-th stage (K is a natural number satisfying any one of 3 to N-1 and satisfying M <K) is an inspection stage configured to be able to inspect an adhesive supply surface by the supply stage of the iron core member. And
The controller is
A fourth process for determining whether or not the supply state of the adhesive to the iron core member is appropriate based on the inspection at the inspection stage;
5. A fifth process of further excluding an iron core member determined to be inadequate in an adhesive supply state based on a determination result in the fourth process before reaching the main lamination stage. The device described in 1. Comprising first to Nth stages (N is a natural number of 5 or more) arranged in this order along a predetermined direction;
The L-th stage (L is a natural number of any one of 2 to N-3) is a measurement stage configured to be able to measure the thickness of the iron core member,
The M-th stage (M is a natural number satisfying any of 3 to N-2 and satisfying L <M) is a supply stage configured to be capable of supplying an adhesive to the iron core member,
The K-th stage (K is a natural number satisfying any one of 4 to N-1 and satisfying M <K) is an inspection stage configured to be able to inspect an adhesive supply surface by the supply stage of the iron core member. And
The transport module further includes a rotation mechanism that rotates the iron core member between the measurement stage and the main lamination stage,
The controller is
After the thickness of one iron core member is measured in the measurement stage and before the one iron core member is laminated to another iron core member in the main lamination stage, the iron core member by the measurement stage is used. A second process for determining whether or not the one core member is required to be transposed based on the measurement result of the thickness;
A third process for controlling the rotating mechanism based on the determination result in the second process to rotate the iron core member that requires a rollover by a predetermined angle;
A fourth process for determining whether or not the supply state of the adhesive to the iron core member is appropriate based on the inspection at the inspection stage;
5. A fifth process of further excluding an iron core member determined to be inadequate in an adhesive supply state based on a determination result in the fourth process before reaching the main lamination stage. The device described in 1. A pressure module that is located above the main stacking stage and the transport body and pressurizes the transport body from the opposite side of the main stack stage;
When the one core member held by the N-1th holding body is stacked on another core member already placed on the main stacking stage, the control unit performs the processing. The pressure module is controlled to further execute a sixth process of pressurizing the one iron core member and the other iron core member through the carrier and the (N-1) th holding body. The apparatus as described in any one of. The transport module further includes a pressure auxiliary body provided on the downstream side in the transport direction with respect to the N-1th holding body in the transport body,
The controller controls the pressurizing module when the first to (N-1) th holding bodies are positioned on the first to (N-1) th stages, respectively. The apparatus according to claim 5, further executing a seventh process of pressurizing a plurality of iron core members stacked on the main stacking stage via the pressing auxiliary body. An engagement module including an engagement piece;
Engagement portions that can be engaged with the engagement pieces are provided on the periphery of each iron core member constituting the laminate,
The engaging portion does not overlap between the core members adjacent in the stacking direction of the stacked body,
The control unit controls the engagement module when the first holding body holds the iron core member that forms the uppermost layer of the stacked body mounted on the mounting stage, so that the stacking is performed. The eighth process of further engaging the engagement piece with the engagement portion of the iron core member constituting the uppermost layer of the body or the iron core member directly below the iron core member. The device according to item. The previous stage is
A first lifting body for lifting and lowering the placed iron core member;
A first elevating mechanism that moves the first elevating body up and down,
The main lamination stage is
A second lifting body for lifting and lowering the laminated core members;
A second lifting mechanism for moving the second lifting body up and down,
The controller is
After controlling the first lifting mechanism to raise the first lifting body by a predetermined amount, the transport module is controlled to hold one iron core member from the first lifting body, or A ninth process of controlling the first lifting mechanism to raise the first lifting body by a predetermined amount after one iron core member is held from the first lifting body by the first holding body; ,
After the one iron core member held by the Nth holding body is placed on the second elevating body, the second elevating mechanism is controlled to lower the second elevating body by a predetermined amount. The apparatus according to claim 1, further performing 10 processes. The supply stage includes a supply member provided with a flow path of an adhesive and a plurality of discharge ports that communicate with the flow path and are arranged along the flow path.
The apparatus according to any one of claims 1 to 8, wherein a size of the plurality of discharge ports is set so as to increase toward a downstream side of the flow path. The supply stage includes a supply member provided with a flow path of adhesive and a plurality of discharge ports arranged along the flow path,
The device according to any one of claims 1 to 8, wherein a flow channel area of the flow channel is set so as to become smaller toward a downstream side of the flow channel.

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