JP4012899B2 - Laminate core manufacturing equipment - Google Patents

Description

The present invention relates to an apparatus for manufacturing a laminated core that consistently performs a work of punching strip material with a press die, laminating a plurality of iron core pieces, and binding a plurality of laminated iron core pieces by welding.

In a conventional method of manufacturing a laminated core, as a method of stacking and binding a plurality of core pieces formed by punching strips made of electromagnetic steel sheets with a press die, they are stacked and adjacent in a press die. A caulking method performed through a protrusion formed on the iron core piece and a recess into which the protrusion is press-fitted, and an adhesive that is melted by heating and pressurizing between adjacent iron core pieces in a press mold. The method of using is known (for example, refer patent document 1).
Furthermore, as another bundling method, a method of punching out an iron core piece with a press die and then taking it out from the press die, laminating a plurality of iron core pieces, and fixing and integrating them is also adopted.

JP 2000-152570 A

However, the conventional method of fixing and integrating by welding has still had the following problems to be solved.
If the core piece was welded immediately after punching, flaws were generated around the weld due to the influence of the remaining punching oil, so the quality of the product (laminated core) could not be ensured.
In order to prevent wrinkling, the punched iron core piece is left to stand for more than one day, and after removing the punching oil and volatilizing, the iron core pieces are laminated and welded. The previous iron core piece becomes intermediate stock, and it takes extra steps, work time, personnel and place to manage it, and as a result, there are problems in terms of construction period and workability.

The present invention has been made in view of such circumstances, and eliminates the intermediate stock of core pieces, omits extra steps, work time, personnel, and place of placement, and manufactures a laminated core that can improve the work period and workability. An object is to provide an apparatus.

A laminated core manufacturing apparatus according to the present invention that meets the above-described object is a laminated core manufacturing apparatus in which a plurality of core pieces punched by a press mold are stacked on a stacking jig, and are taken out from the press mold and welded. There,
Wherein arranged in the press die side, the first mounting said laminating jig comprises a second jig mounting portion into upper and lower stages, the first, the second jig mounting portion, laminated A payout position to the upstream side of the iron core piece conveying means, and a mounting unit lifting means that moves to the loading position from the downstream side of the stacking jig conveying means,
A first stacking jig transfer means capable of transferring the stacking jig to the first and second jig mounting portions and the press mold;
The laminated core piece conveying means for conveying the lamination jig in which a plurality of the iron core pieces dispensed from the first jig mounting portion at the dispensing position are laminated;
The stacking jig transporting means for transporting the empty stacking jig to the second jig mounting portion at the loading position;
A second stacking jig transfer for transferring the stacking jig in which a plurality of the core pieces are stacked from the first jig mounting portion at the payout position to the upstream end of the stacked core piece transporting means. Loading means;
Third stacking jig transfer means for transferring the stacking jig on the downstream end side of the stacking jig transporting means to the second jig mounting portion at the loading position;
Oil removal volatilizing means provided on the conveying path of the laminated core piece conveying means and blowing air to the laminated pieces of the iron core to remove and volatilize the attached punching oil;
An iron core piece measuring means provided in the vicinity of the downstream side of the laminated iron core piece conveying means, and weighing the laminated iron core pieces;
The punching oil is volatilized and removed, and a core piece welding means for welding the core sheets of plural stacked,
After being measured by the core piece measuring means, the stacking jig from which the plurality of stacked core pieces are removed is placed at the supply position at the upstream end of the stacking jig conveying means. .

In the laminated core manufacturing apparatus of the present invention, the stacking jig is stacked from the press die through the mounting portion lifting / lowering means having the jig mounting portion and the first and second stacking jig transfer means. Air can be transported to the core piece transporting means, and air is punched out by a press die and stacked on the stacking jig by the oil removal volatilizing means provided on the transport path of the laminated core piece transporting means. Spraying to remove and volatilize the adhering punching oil, and after weighing the plurality of laminated core pieces by the iron piece measuring means, the laminated iron pieces are laminated by the iron piece welding means. And an empty stacking jig from which a plurality of stacked core pieces are removed, is transferred to the stacking jig transporting means and the third stacking jig transfer. mounting means mounting portion lifting means and the first lamination jig Through the transfer means, it is returned to the press die. Therefore, it is necessary to construct a consistent line of punching multiple pieces of iron cores with a press die, laminating on empty lamination jigs, welding multiple laminated iron core pieces, and circulating the lamination jigs. As a result, intermediate inventory does not occur, and all of the extra steps, work time, personnel, and place required to manage the intermediate inventory are unnecessary. In addition, the lead time can be shortened and the process can be synchronized to stabilize the quality.

In the laminated core manufacturing apparatus according to the present invention, the jig mounting portion includes a first jig mounting portion and a first jig mounting portion arranged above and below at the same interval as the interval between the laminated core piece conveying means and the laminating jig conveying means. since it has a second jig mounting unit, and at the same time a plurality of core sheets from the first jig mounting portion to transfer the laminated jig laminated to the laminated core piece conveying means, stacking jig An empty stacking jig can be transferred from the conveying means to the second jig mounting portion, thereby shortening the cycle time.
In the laminated core manufacturing apparatus of the present invention, the inner peripheral surface of a plurality of laminated core pieces supplied to the core piece welding means is held by a laminated core piece holding mechanism capable of expanding and reducing the outer diameter of the contact portion. In some cases, a plurality of iron core pieces can be automatically aligned. As a result, the quality of welding is improved, and the lamination of iron core pieces before welding and the removal of the laminated iron core after welding are facilitated.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
FIG. 1 is a plan view schematically illustrating the overall configuration of a laminated core manufacturing apparatus according to an embodiment of the present invention, and FIG. 2 schematically illustrates the overall configuration of the laminated core manufacturing apparatus. 3A and 3B are a plan view and a front sectional view of a lamination jig used in the laminated core manufacturing apparatus, respectively, and FIG. 4 shows an iron piece welding means of the laminated core manufacturing apparatus. FIG. 5 is an explanatory view of the laminated core piece holding mechanism of the core piece welding means of the laminated core manufacturing apparatus.

As shown in FIGS. 1 to 3 (A) and 3 (B), in the laminated core manufacturing apparatus 10 according to the embodiment of the present invention, the supplied strip material (not shown) is a press die 11. A plurality of stator core pieces 13, which are an example of iron core pieces punched at the processing station S and formed with six groove portions 12 at equal intervals along the outer periphery, are stacked on a stacking jig 14, and a press die 11 is formed. It is an apparatus that manufactures a laminated core 16 by taking out more outside and performing necessary processing, and then welding the groove portions 12 of the stator core pieces 13 that are laminated in a plurality by the core piece welding means 15. In addition, the thickness of the strip made of an electromagnetic steel sheet is about 0.3 to 0.5 mm.

As shown in FIGS. 1 and 2, the laminated core manufacturing apparatus 10 includes a mounting portion lifting / lowering means 19 that is an example of a mounting portion moving means disposed on a side portion of the press die 11. The mounting portion elevating means 19 can mount a stacking jig 14 in which a plurality of stator core pieces 13 are stacked, and can guide the movement of the stacking jig 14 in the front-rear direction and is arranged in two upper and lower stages. The first jig mounting part 17 and the second jig mounting part 18 which are examples of the jig mounting part are provided. The first jig mounting part 17 of the mounting part raising / lowering means 19 can be moved to the payout position a to the upstream side of the laminated core piece conveying means 21, and the second jig mounting part 18 is moved to the lamination jig conveying means 22. It can move to the loading position b from the downstream side.

The first jig mounting portion 17 and the second jig mounting portion 18 are movable in three positions (upper limit position A, intermediate position B, and lower limit position C) in the vertical direction. The laminated core piece conveying means 21 is provided above the lamination jig conveying means 22 and at a height position of the distance P, and is disposed below the distance P from the height level of the processing station S.
In the laminated core manufacturing apparatus 10, a stacking jig 14 in which a plurality of stator core pieces 13 are stacked in a press mold 11 is transferred from a processing station S of the press mold 11 to a first part lifting / lowering means 19. A first transfer is performed on the jig mounting portion 17, and the empty stacking jig 14 is transferred from the second jig mounting portion 18 of the mounting portion lifting / lowering means 19 to the processing station S of the press die 11. The stacking jig transfer means 20 is provided.

In the laminated core manufacturing apparatus 10, the lamination jig 14 mounted on the first jig mounting portion 17 at the payout position a and having a plurality of stator core pieces 13 laminated thereon is disposed upstream of the laminated core piece conveying means 21. The second stacking jig transfer means 23 to be transferred to the end c and the empty stacking jig 14 at the downstream end d of the stacking jig transport means 22 are placed at the loading position b. And a third stacking jig transferring means 24 for transferring to the jig mounting portion 18.

The laminated core manufacturing apparatus 10 is provided on the conveying path of the laminated core piece conveying means 21, in this embodiment, immediately above the downstream side (downstream end) e, and a plurality of laminated stator core pieces 13 are provided. An oil removing and volatilizing means 25 that blows air to the groove part 12 to remove and volatilize the punched oil adhering to the groove part 12 and a laminating jig provided near the downstream side e of the laminated core piece conveying means 21 And a core piece measuring means 26 for measuring a plurality of stator core pieces 13 stacked on the stator 14.

In the laminated core manufacturing apparatus 10, the punched oil is volatilized and removed by the oil removing volatilizing means 25, removed from the stacking jig 14, and stacked on another stacking jig 42. The core piece welding means 15 for welding the plurality of groove portions 12 is provided. The stacking jig 14, which is emptied after the plurality of stacked stator core pieces 13 are removed for welding after being weighed by the core piece measuring means 26, is a stacking jig transporting means. 22 is placed at the supply position of the upstream end portion f. These will be described in detail below.

As shown in FIG. 2, a strip material made of a thin electromagnetic steel plate, which is a material of the stator core piece 13, is supplied to the press die 11, and the strip material is subjected to predetermined processing at each processing station, and then as shown in FIG. 2. The processing station S is configured such that the outer shape is removed and the stator core pieces 13 are stacked one by one on the empty stacking jig 14. As shown in FIG. 3A, the groove 12 of the stator core piece 13 is formed with a U-shaped notch in plan view.

As shown in FIGS. 3A and 3B, the stacking jig 14 is substantially H-shaped in plan view, and is erected on a plate-like pedestal 27 and a central portion of the pedestal 27, and is a stator core. It has a substantially cylindrical guide member 29 for guiding the inner peripheral surface 28 of the piece 13 in the vertical direction. At the center of the pedestal 27, there is provided a disk-shaped seat 30 that protrudes upward in plan view, with which the inside of the lower surface of the lowermost stator core piece 13 abuts. Rectangular plate-like mounting parts 31 to 34 are provided at the four corners of the base 27, and the outer peripheral surface 13 a of the laminated stator core pieces 13 is positioned at an intermediate position between the mounting part 32 and the mounting part 33. The stacking jig 14 is moved by the first stacking jig transfer means 20, the second stacking jig transfer means 23, and the third stacking jig transfer means 24. Therefore, a T-shaped hooked portion 35 is formed in plan view.

The guide member 29 of the stacking jig 14 is connected to the cylindrical portion 36 fixed to the upper surface of the seat portion 30 of the pedestal 27 and the upper end of the cylindrical portion 36, and is reduced in diameter along the upper side. And a cylindrical truncated cone portion 37 that guides the stacking of the two. A reinforcing member 38 made of a pipe is horizontally attached to the inside of the truncated cone portion 37.

As shown in FIG. 2, the laminating jig 14 is transferred between the processing station S of the press die 11 and the mounting portion lifting / lowering means 19 by the first laminating jig transferring means 20. A guide mechanism 39 is provided horizontally. The guide mechanism 39 includes a plurality of rotating rollers 40 that roll and support the lower surfaces of the mounting portions 31 and 32 and the mounting portions 34 and 33 that form a pair of the base 27 of the stacking jig 14. The jigs 14 are provided at intervals in a direction (left-right direction) perpendicular to the moving direction (front-back direction) of the jig 14.

The first stacking jig transfer means 20 is provided with a rod that is advanced and retracted by advancing and retreating means such as a cylinder attached to a fixed frame (not shown), and whose tip is slightly swung in the vertical direction. And the latching | locking part which can be latched by the to-be-latched part 35 of the lamination | stacking jig | tool 14 is formed in the front-end | tip part of a rod. With this configuration, the first stacking jig transfer means 20 causes the stacking jig 14 to be transferred via the guide mechanism 39 to the processing station S of the press die 11 and the first jig of the mounting portion lifting / lowering means 19. It can move between the mounting part 17 or the second jig mounting part 18. The second and third stacking jig transfer means 23 and 24 have the same structure as the first stacking jig transfer means 20.

In the mounting unit elevating means 19, the first jig mounting unit 17 and the second jig mounting unit 18 that are horizontally disposed with a space P therebetween are provided integrally with the lifting frame, The lifting frame is driven by a hydraulic cylinder or the like and is guided by a guide mechanism so as to be movable up and down.

With this configuration, the stacking jig 14 of the processing station S is transferred to the first jig mounting portion 17 at the intermediate position B of the mounting portion lifting / lowering means 19 by the first stacking jig transfer means 20. The empty stack can be transferred to the laminated iron core piece conveying means 21 by the second lamination jig transferring means 23 with the distance P lowered. The jig 14 is transferred to the second jig mounting portion 18 at the lower limit position C of the mounting portion lifting / lowering means 19 by the third stacking jig transferring means 24, and the distance is increased by 2P, so that the upper limit position is reached. The empty stacking jig 14 mounted on the second jig mounting portion 18 of A can be transferred to the processing station S by the first stacking jig transfer means 20.

The laminated core piece conveying means 21 and the laminating jig conveying means 22 which are horizontally arranged with a space P in the vertical direction on the opposite side of the mounting die lifting means 19 from the press die 11 are each composed of a chain conveyor. Each of the chain conveyors includes a pair of endless chains arranged at horizontal intervals in the left-right direction, and a guide roller arranged along the vicinity immediately above the paired endless chains. A pair of endless chains can be brought into contact with the front side of the base 27 including the mounting parts 31 and 34 as a pair of the stacking jig 14 or the rear side of the base 27 including the mounting parts 32 and 33 as a pair. The engaging members formed from the shaped steel are horizontally connected at a predetermined pitch in the front-rear direction, and the lower surfaces of the mounting portions 31 to 34 of the stacking jig 14 are in contact with the guide rollers. It has become. With this configuration, the lamination jig 14 can be intermittently conveyed via the engaging member by driving the laminated core piece conveying means 21 and the lamination jig conveying means 22.

The oil removal volatilization means 25 removes the punching oil adhering to the grooves 12 (scheduled weld locations) of the plurality of stator core pieces 13 laminated on the lamination jig 14 conveyed by the laminated core piece conveyance means 21. Further, it is volatilized, and is provided with six air nozzles arranged horizontally toward the center in the radial direction so as to face the six grooves 12 of the stator core piece 13. Six air nozzles are attached to the lifting frame, and the lifting frame is configured to be movable up and down along four bar-shaped guides arranged vertically in the vertical direction by a lifting mechanism (for example, a cylinder). ing.

The core piece measuring means 26 measures the weight of the plurality of stator core pieces 13 stacked on the stacking jig 14, and uses, for example, a load cell. In the present embodiment, the punching oil is removed and volatilized by the oil removing and volatilizing means 25, and the plurality of stator core pieces 13 stacked on the laminating jig 14 are picked up from the laminated core piece conveying means 21 by the operator. It is placed on the iron core piece measuring means 26. When the result of measurement of the plurality of stator core pieces 13 by the core piece measuring means 26 is heavier than a predetermined weight, the corresponding number of stator core pieces 13 is removed, and on the other hand, when the weight is smaller than the predetermined weight, A corresponding number of stator core pieces 13 are added accordingly.

As shown in FIGS. 1 and 4, the core piece welding means 15 is formed by removing a plurality of stator core pieces 13 adjusted to a predetermined weight by the core piece measuring means 26 from the stacking jig 14. Another lamination jig 42 separately laminated by the core attaching / detaching portion 41, an iron core welding portion 43 for welding a plurality of stator core pieces 13 laminated on the other lamination jig 42, and another lamination The jig 42 has an advancing / retreating mechanism 44 capable of advancing / retreating between the laminated core attaching / detaching portion 41 and the iron core piece welded portion 43. The welding method by the core piece welding means 15 is, for example, a TIG welding method.

As shown in FIG. 4, the tips of the six welding torches 46 integrally attached to the fixed frame 45 via the bracket 45 a are attached to the iron piece welded portion 43. It attaches so that it may contact with the up-down direction with respect to the groove part 12 of this. Each of the six welding torches 46 is attached so as to be able to advance and retreat in the radial direction of the stator core piece 13. Here, the welding torch 46 can be appropriately changed according to the number and arrangement of the groove portions 12 of the iron core. Moreover, the groove part formed in the outer peripheral part or inner peripheral part of the laminated | stacked iron core piece (namely, laminated iron core) is not necessarily essential, Therefore, even when welding the outer peripheral part or inner peripheral part of an iron core piece directly, this book The invention applies.
As shown in FIGS. 4 and 5, the stacking jig 42 includes a circular mounting plate 47 on which a plurality of stator core pieces 13 are mounted, and a plane provided on the lower portion of the mounting plate 47 via a bracket. It has a rectangular plate-like advance / retreat frame 48 as viewed.

The advancing / retracting mechanism 44 includes a pair of sliding guides 49, 50 having a concave cross section provided in parallel with a horizontal interval in the left-right direction below the advancing / retracting frame 48 of the stacking jig 42, and a mounting bracket on the fixed frame 45. 51, a rectangular plate-like guide mounting plate 52 provided horizontally through 51, and a pair of rectangular sections provided on the guide mounting plate 52 and engaged with the recesses of the sliding guides 49 and 50. Guide rails 53 and 54 and driving means such as a cylinder for horizontally driving the advance / retreat frame 48 in the front-rear direction are provided.

The laminating jig 42 has a laminating core piece having an abutting portion 55 whose outer diameter D can be expanded and contracted in the radial direction, which can hold or release the inner peripheral surface of the plurality of laminated stator core pieces 13. A holding mechanism 56 is provided. With this configuration, in the laminated core attaching / detaching portion 41, a plurality of stator core pieces 13 are laminated on the laminating jig 42 in a state where the outer diameter D of the abutting portion 55 is reduced, and the laminated core piece holding mechanism 56 makes the contact. The outer diameter D of the contact portion 55 can be enlarged to automatically align the plurality of stator core pieces 13 and to hold the plurality of stator core pieces 13. In this state, the core pieces can be held. A plurality of stator core pieces 13 are welded by the welded portion 43, the outer diameter D of the contact portion 55 is reduced by the laminated core piece holding mechanism 56, and a plurality of welded stator core pieces 13 (laminated cores) are welded. 16) can be removed from the stacking jig 42.

Reference numeral 57 in FIG. 1 denotes a deposit table for temporarily depositing the laminated iron core 16 removed from another lamination jig 42, and reference numeral 58 denotes a packing case for packing the laminated iron core 16 on the deposit table 57. ing.

Next, a method for manufacturing a laminated core according to an embodiment of the present invention using the laminated core manufacturing apparatus 10 will be described mainly with reference to FIGS. 1 and 2. A consistent process will be described along the movement of the empty stacking jig 14 arranged in the processing station S of the press die 11.
(Iron core laminating process)
The strip supplied to the press die 11 is processed at each processing station, and a plurality of stator core pieces 13 sequentially punched at the processing station S are arranged immediately below the stator core pieces 13. The layers are sequentially stacked on the empty stacking jig 14.

(Multilayer core removal process)
(1) A stacking jig 14 in which a predetermined number of stator core pieces 13 are stacked at the processing station S of the press die 11 is mounted by a first stacking jig transfer means 20 by means of a mounting part lifting / lowering means 19. Is taken out of the press die 11 by being mounted on the first jig mounting portion 17 at the intermediate position B.
(2) The first jig mounting portion 17 of the mounting portion raising / lowering means 19 is lowered to the lower limit position C, and a plurality of stator core pieces 13 mounted on the first jig mounting portion 17 at the payout position a are provided. The stacked lamination jig 14 is transferred to the upstream end c of the laminated core piece conveying means 21 by the second lamination jig transferring means 23. At this time, (2) of the empty stacking jig supply step (described later) is performed at the same time.

(Oil removal volatilization process)
Lamination jig 14 in which a plurality of stator core pieces 13 are laminated is intermittently conveyed by laminated core piece conveying means 21, and oil removing and volatilizing means 25 provided on the downstream side e of laminated core piece conveying means 21. Thus, air is blown onto the plurality of groove portions 12 formed on the outer peripheral portion of the plurality of stator core pieces 13 laminated on the lamination jig 14 to remove and volatilize the punching oil adhering to the groove portions 12. .
(Multilayer core piece weighing process)
The plurality of stator core pieces 13 stacked on the stacking jig 14 are manually removed from the downstream side e of the stacked core piece transport means 21 and mounted on the core piece measuring means 26 to be mounted on the plurality of stator core pieces 13. Weigh the weight. Depending on the result of this measurement, the stator core piece 13 is removed or added.

(Iron core phase deflection process)
The laminated stator core pieces 13 are divided into three parts in the thickness direction, and the divided three stator core pieces 13 are each manually taken out from the lamination jig 14 in this embodiment. The phases are shifted by 120 degrees in the circumferential direction, and laminated on another lamination jig 42 arranged in the laminated core attaching / detaching portion 41 of the core piece welding means 15.

(Laminated core piece welding process)
(1) The stacking of the core piece welding means 15 is performed by stacking on another stacking jig 42 including the stacked core piece holding mechanism 56 in a state where the punching oil is removed and volatilized and the outer diameter D of the contact portion 55 is reduced. The plurality of stator core pieces 13 arranged in the core attaching / detaching portion 41 are automatically aligned by enlarging the outer diameter D of the abutting portion 55 of the laminated core piece holding mechanism 56 and held by the lamination jig 42. To do.
(2) The other lamination jig 42 is moved from the laminated core attaching / detaching portion 41 to the core piece welding portion 43 by the advance / retreat mechanism 44.

(3) The six welding torches 46 of the core piece welded portion 43 are simultaneously lowered and moved radially inward, and the plurality of stator core pieces 13 are TIG welded to the six groove portions 12.
(4) The other stacking jig 42 is moved from the core piece welded portion 43 to the stacked core attaching / detaching portion 41 by the advance / retreat mechanism 44.
(5) The outer diameter D of the contact portion 55 of the laminated core piece holding mechanism 56 is reduced by the laminated core attaching / detaching portion 41, and a plurality of stator core pieces 13 (the laminated iron core 16) welded manually. Product) is removed from the stacking jig 42.

(Supply process for empty stacking jig)
(1) The stacking jig 14 from which the plurality of stator core pieces 13 before welding have been removed in the iron core piece phase deflection step is supplied manually to the upstream end f of the stacking jig conveying means 22. Placed in position.

(2) The empty stacking jig 14 is intermittently transferred to the downstream end d by the stacking jig transporting means 22 and the third stacking jig transferring means 24 is used to An empty stacking jig 14 is transferred to the second jig mounting portion 18 (at the loading position b) at the lower limit position C. In addition, (2) of the above-mentioned laminated core piece extraction process is implemented simultaneously at this time.
(3) The second jig mounting portion 18 of the mounting portion lifting / lowering means 19 is raised to the upper limit position A, and the empty stacking jig 14 is pressed by the first stacking jig transfer means 20 by a press die. 11 processing stations S.

(Product transport process)
(1) The laminated iron core 16 removed from the lamination jig 42 by the laminated iron core attaching / detaching portion 41 is a manual or first simple carrying jig (for example, a plurality of claws having a cylindrical body inside from the outside of the cylinder). It is transported by a jig having a structure capable of hooking the bottom, and temporarily deposited on a deposit table 57.
(2) The laminated iron core 16 temporarily deposited on the deposit table 57 has a manual or second simple carrying jig (for example, the holding member expands from the inside to the outside of the cylinder and the inner circumference of the cylinder). The surface is transported by a jig having a structure capable of hooking the surface, and placed in the packing case 58.

The present invention is not limited to the above-described embodiments, and can be changed without departing from the gist of the present invention. For example, some or all of the above-described embodiments and modifications are included. The case where the manufacturing method and the manufacturing apparatus of the laminated iron core of the present invention are combined and included in the scope of the right of the present invention.
In the above-described embodiment, the stator core piece 13 is used as the iron core piece. However, the present invention is not limited to this, and the rotor core piece can be used as necessary. Further, the stator core piece 13 and the rotor core piece can be processed simultaneously.

Between the laminated core piece measuring step and the laminated core piece welding step, the plurality of laminated stator core pieces 13 are divided into three parts in the thickness direction, and the three divided stator iron pieces 13 are circumferentially arranged. Although the iron core piece phase deflection step is provided in which the phase is shifted by 120 degrees in the direction, the present invention is not limited to this, and the iron core piece phase deflection step can be omitted if necessary. Moreover, although the laminated | stacked several sheets of stator core pieces 13 were divided into 3 minutes in the thickness direction, it is not limited to this, It can also be made into 2 minutes or 4 minutes or more according to a condition.
Although the laminated core piece measuring step is provided after the oil removing volatilization step, the present invention is not limited to this, and the laminated core piece measuring step can be provided before the oil removing volatilizing step as necessary.

The stacking jig 14 placed on the processing station S of the press die 11 is set to the height level of the laminating jig 14 placed on the laminated core piece conveying means 21 and the laminating jig conveying means 22. Although arranged below the distances P and 2P from the height level, the present invention is not limited to this, and if necessary (especially depending on the structure of the first stacking jig transfer means), the laminated core piece transport means 21. Can be set at the same height level as the processing station S, and the stacking jig conveying means 22 can be disposed below the distance P by the laminated core piece conveying means 21.

The inner peripheral surface of the plurality of stator core pieces 13 stacked on another stacking jig 42 is held via the stacked core piece holding mechanism 56 that can expand and contract the outer diameter D of the contact portion 55. However, the present invention is not limited to this, and the laminated core piece holding mechanism can be omitted if necessary.
A plurality of stator core pieces 13 stacked on the stacking jig 14 on the downstream side e of the laminated core piece conveying means 21 are manually mounted on the core piece measuring means 26, or the core pieces are manually placed. The plurality of laminated stator core pieces 13 in the weighing means 26 are taken out from the lamination jig 14 and laminated on another lamination jig 42 in the laminated core attaching / detaching portion 41 of the iron piece welding means 15. It is not limited to this, and it can be mechanized depending on the situation.

As the second and third stacking jig transfer means 23 and 24, the rod is advanced and retracted by a cylinder or the like, and a latching portion is formed at the tip of the rod, and the latching portion is slightly swung in the vertical direction. However, the present invention is not limited to this, and if necessary, a plurality of other structures, for example, a first jig mounting portion and a second jig mounting portion of the mounting portion lifting / lowering means, It is also possible to provide a moving roller so that the laminating jig 14 can be placed by a plurality of rolling rollers, and the laminating jig 14 placed by driving the rolling rollers can be moved. Similarly to the second and third stacking jig transfer means, the first stacking jig transfer means 20 can place the stacking jig 14 with a plurality of rolling rollers, and the transfer is possible. It can also be set as the structure which can move the jig | tool 14 for lamination | stacking mounted by the drive of the moving roller.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view schematically illustrating an entire configuration of a laminated core manufacturing apparatus according to an embodiment of the present invention. It is a front view which illustrates typically the whole structure of the manufacturing apparatus of the same laminated iron core. (A) and (B) are the top view and front sectional drawing of the lamination jig | tool used for the manufacturing apparatus of the laminated core, respectively. It is explanatory drawing of the core piece welding means of the manufacturing apparatus of the laminated core. It is explanatory drawing of the laminated core piece holding | maintenance mechanism of the core piece welding means of the manufacturing apparatus of the laminated core.

Explanation of symbols

10: Manufacturing apparatus for laminated iron core, 11: Press die, 12: Groove, 13: Iron core piece for stator (iron core piece), 13a: Outer peripheral surface, 14: Lamination jig, 15: Iron piece welding means, 16: Laminated core, 17: first jig mounting part (jig mounting part), 18: second jig mounting part (jig mounting part), 19: mounting part lifting means (mounting part moving means), 20: 1st lamination jig transfer means, 21: lamination core piece conveyance means, 22: lamination jig conveyance means, 23: second lamination jig transfer means, 24: third lamination jig Transfer means, 25: Oil removal volatilization means, 26: Iron piece measuring means, 27: Base, 28: Inner peripheral surface, 29: Guide member, 30: Seat part, 31-34: Placement part, 35: Cover Stopping part, 36: cylindrical part, 37: truncated cone part, 38: reinforcing material, 39: guide mechanism, 40: rotating roller, 41: laminated core attaching / detaching part, 4 : Lamination jig, 43: Iron core welded part, 44: Advance / retract mechanism, 45: Fixed frame, 45a: Bracket, 46: Welding torch, 47: Mounting plate, 48: Advance / retract frame, 49, 50: Sliding guide , 51: mounting bracket, 52: guide mounting plate, 53, 54: guide rail, 55: contact portion, 56: laminated core piece holding mechanism, 57: deposit table, 58: packing case

Claims (2)

A laminated core manufacturing apparatus for laminating a plurality of iron core pieces punched by a press die on a lamination jig, taking out from the press die and welding,
Wherein arranged in the press die side, the first mounting said laminating jig comprises a second jig mounting portion into upper and lower stages, the first, the second jig mounting portion, laminated A payout position to the upstream side of the iron core piece conveying means, and a mounting unit lifting means that moves to the loading position from the downstream side of the stacking jig conveying means,
A first stacking jig transfer means capable of transferring the stacking jig to the first and second jig mounting portions and the press mold;
The laminated core piece conveying means for conveying the lamination jig in which a plurality of the iron core pieces dispensed from the first jig mounting portion at the dispensing position are laminated;
The stacking jig transporting means for transporting the empty stacking jig to the second jig mounting portion at the loading position;
A second stacking jig transfer for transferring the stacking jig in which a plurality of the core pieces are stacked from the first jig mounting portion at the payout position to the upstream end of the stacked core piece transporting means. Loading means;
Third stacking jig transfer means for transferring the stacking jig on the downstream end side of the stacking jig transporting means to the second jig mounting portion at the loading position;
Oil removal volatilizing means provided on the conveying path of the laminated core piece conveying means and blowing air to the laminated core pieces to remove and volatilize the attached punching oil;
An iron core piece measuring means provided in the vicinity of the downstream side of the laminated iron core piece conveying means, and weighing the laminated iron core pieces;
The punching oil is volatilized and removed, and a core piece welding means for welding the core sheets of plural stacked,
After being measured by the core piece measuring means, the stacking jig from which the plurality of stacked core pieces are removed is placed at the supply position at the upstream end of the stacking jig transporting means. An apparatus for producing a laminated iron core characterized by the above. 2. The laminated core manufacturing apparatus according to claim 1 , wherein the inner peripheral surfaces of the plurality of stacked core pieces that are removed from the stacking jig and supplied to the core piece welding means are outside the contact portion. An apparatus for producing a laminated core, wherein the diameter is held by a laminated core piece holding mechanism capable of expanding and contracting.

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