JP2008062272A - Method of manufacturing laminate and apparatus therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a laminate by which accurate positioning can be performed, the occurrence of defective lamination is eliminated and the mechanism and control of an apparatus therefor are not complicated, and to provide an apparatus therefor. <P>SOLUTION: The method of manufacturing the laminate has: a first step where the forming parts of a first to the n-th metal plates 13-16 are allocated to a belt-like material 10, caulking parts 18, 19 are preformed in the forming part and the belt-like material 10 is fed to a working station; a second step where the first metal plate 13 is blanked, is subjected to separable indenting work or non-separable indenting work thereby being pushed back to the original position and also the second to the n-th metal plates 14-16 are blanked and housed inside a blanking edged tool 23, 27, 31 on one side of a pair of upper and lower tools; a third step where the belt-like material 10 is successively fed, the second metal plate 14 is caulked to and laminated on the first metal plate 13 and, hereafter, the metal plates 15, 16 to the n-th metal plate are respectively caulked to and laminated on the metal plate next before them; and fourth step where the first metal plate 13 to and on which the second to the n-th metal plates 14-16 are caulked and laminated is cut off from the belt-like material 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a laminate formed by combining plate materials having the same or different outer shapes in the thickness direction, and is formed by sequentially punching plate materials having different outer shapes by using a mold, and integrally stamping the plate materials by caulking. The present invention relates to a method of manufacturing a laminated body by bonding to a substrate and a manufacturing apparatus thereof.

Conventionally, when a laminate is formed by combining plate materials having different external shapes, the plate materials are individually punched with a mold, and the respective plate materials are aligned and laminated outside the mold. Since they are combined in separate steps, there is a problem that the accuracy in stacking is poor, and the productivity is low because labor and time are required for the combination work.
In order to solve the above problems, as in Patent Document 1, while punching plate materials of various external shapes while transporting the belt-like material to the dies arranged in tandem, these are caulked in the final process (die). And a method and apparatus for integrally joining and stacking are known.

JP 2002-35866 A

In the method of Patent Document 1, plate materials having different external shapes are punched in advance from a band-shaped material using a pushback, and are transported in a state of being held in the material, and are laminated at the same time as the external shape is removed in the final process. Especially in the case of outline removal, in order to cope with different outlines of the plate material, a plurality of outline punches are provided in the punch holder and the punch is selectively operated by rotating this holder around the axis. It is carried out. At that time, the support device for supporting the plate material from the lower surface is configured to descend by the amount of the laminated plate material.

However, in the method described in Patent Document 1, when laminating the plate material, since the separation from the material of the plate material and the lamination are performed at the same time without support from the side surface, if the balance is slightly broken, the caulking uneven position is It does not match, resulting in poor stacking. Further, in this apparatus, it is necessary to prepare outer punches according to the outer shape of the plate material, and the structure of the apparatus is complicated because of the mechanism for selecting and operating these punches. In addition, there is a problem that it is difficult to perform synchronous control, such as switching when changing the punch with the outer shape, adjusting the press speed accordingly, and lowering the support device.
Furthermore, since all types of plate materials are pushed back, warping may occur depending on the shape of the plate material, and there is a high possibility of causing poor stacking due to misalignment positions of caulking with other plate materials. is there.

The present invention has been made in view of such circumstances, and it is possible to accurately align the upper and lower plate members to be stacked without causing the misalignment of the caulking, so that the occurrence of stacking faults is eliminated, and the mechanism and control of the apparatus are complicated. It aims at providing the manufacturing method of the laminated body which does not become, and its manufacturing apparatus.

In the manufacturing method of the laminated body according to the first invention that meets the above-mentioned object, the 1st to nth plate materials having different external shapes or partly the same are combined in the stacking direction.
The first to nth plate material forming portions are assigned to the band-shaped material, and the caulking portions are respectively formed in the formed portions in advance, and the band-shaped material is sent to a processing station that punches and forms the outer shape of the first to nth plate materials. The first step;
The outer shape of the first plate material is extracted at the forming portion corresponding to the first plate material, and further pushed back to the original by separate indentation processing or non-separate indentation processing, and the outer shape of the second to nth plate material is extracted, A second step of accommodating inside one of the upper and lower outer shape cutters;
A third step of sequentially feeding the strip-shaped material, caulking and laminating the second plate material on the first plate material, and then caulking and laminating the n-th plate material sequentially on the previous plate material;
And a fourth step of separating the first plate material on which the 2nd to nth plate materials are caulked and laminated from the band-shaped material.

The method for manufacturing a laminate according to the second invention is the method for manufacturing the laminate according to the first invention, wherein in the second step, the first plate material is extracted from the outer shape and separated or non-separated. The step of performing and the step of extracting the 2nd to nth plate members and accommodating them inside the externally cut blades are performed simultaneously or separately.

The manufacturing method of the laminated body according to the third invention is the manufacturing method of the laminated body according to the first and second inventions, wherein the second to nth plate members are paired up and down when the outer shape is removed. The outer cutter is housed in the upper cutter.

The method for manufacturing a laminate according to a fourth invention is the method for manufacturing a laminate according to the first and second inventions, wherein the second to nth plate members are paired up and down when the outer shape is removed. The 2nd to n-th plate members housed in the lower blade of the outer cutter and pushed out from the lower blade are stacked on the lower surface side of the first plate.

A laminate manufacturing apparatus according to a fifth aspect of the present invention is a laminate manufacturing apparatus in which the outer shapes are different or partly the same from the first to the n-th plate members in the stacking direction.
A caulking part processing station for forming caulking parts in the band-shaped materials to which the first to nth plate material forming parts are assigned,
Following the caulking section processing station, the first punching process is performed by punching out the first plate member at the forming portion corresponding to the first plate member and pressing it back into the strip-shaped material by separating or non-separating pressing. Station,
Subsequent to the first punching station, the 2nd to nth plate members are punched in the 2nd to nth plate material forming portions, and are accommodated inside one of the upper and lower outer shape cutters. 2nd to nth punching stations;
a separation processing station that follows the n-th punching station and separates the first plate material from which the second to n-th plate materials are caulked and laminated from the strip material;
In addition, each of the 2nd to nth punching stations extrudes the plate housed in one of the outer punched blades, and stacks by caulking and laminating the plate material formed in the previous punching station. Has a punch.

In the manufacturing method of the laminated body of Claims 1-4, and the manufacturing apparatus of the laminated body of Claim 5, since the separation of the board | plate material from a strip-shaped material and lamination | stacking of board | plate materials are not performed simultaneously, the upper and lower sides to laminate | stack The position of the caulking unevenness of the plate material is not displaced, and the alignment can be performed accurately, and the occurrence of poor stacking is eliminated. Since the final process only needs to separate the first plate material, the mechanism and control of the apparatus are not complicated. Further, since only the first plate material is subjected to the separation indentation process or the non-separation indentation process, there is no stacking defect conventionally caused by the warp of the sheet material.

In particular, in the method for manufacturing a laminate according to claim 3, since the 2nd to nth plate members are housed in the upper blade of the upper and lower cutout blades when the outer shape is cut out, the lowermost plate member This is effective when the laminated body is struck down on the lower side of the belt-shaped material with the largest shape.

In the manufacturing method of the laminated body according to claim 4, when the outer shape is removed, the 2nd to nth plate members are housed in the lower cutter among the upper and lower paired outer cutters and are extruded from the lower cutter. Since the nth plate material is laminated on the lower surface side of the first plate material, a plurality of plate materials can be laminated and separated from the belt-like material regardless of the size of the plate material.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIG. 1 is explanatory drawing which shows the manufacturing process of the manufacturing method of the laminated body which concerns on the 1st Embodiment of this invention, FIG. 2 is explanatory drawing of the board | plate material which is going to laminate | stack by the manufacturing method, FIG. (B) and (B) are explanatory views of a method for manufacturing a laminate according to the second embodiment of the present invention.

As shown in FIG. 1, in the manufacturing method of the laminated body which concerns on the 1st Embodiment of this invention, the metal mold apparatus (The metal mold | die mechanism of a manufacturing apparatus, and its) which has the processing station of (A)-(G) Part including the drive mechanism). A processing station for forming the pilot holes 11 and 12 on both sides of the belt-like material 10 can be provided in front of the processing station of the mold apparatus. Further, in this embodiment, as shown in FIG. 2, a method for manufacturing a laminate 17 in which n (plurality) is 4 and four plate members 13 to 16 are laminated will be described. The plate members 13 to 16 having different external shapes form the first to fourth plate members, and a shaft hole with a key (not shown) is provided at the center of each plate member 13 to 16, but is omitted in this embodiment. Has been.

A plurality (four in this example) of caulking holes 18 as examples of caulking portions are formed in the forming portion of the plate material 13 of the belt-like material 10 in which the pilot holes 11 and 12 are formed at the caulking portion processing station shown in FIG. Is done. In the caulking portion processing station shown in (B), caulking protrusions 19 that are examples of caulking portions are formed on the plate members 14 to 16, that is, the formation portions of the plate members 14 to 16 excluding the lowermost plate member 13. The In this embodiment, the caulking hole 18 is a circular through hole, and the caulking protrusion 19 is a circular half-cut hole. A well-known V-shaped caulking can also be used as the caulking portion.

In the first punching station shown by (C), the plate material 13 is processed. The punch 20 and the die 21 which are externally cut blades are used to completely or partially punch the strip-shaped material 10. The outer shape is cut out by machining, and then the plate material 13 which has been cut out by the pressing punch 22 is separated or non-separated, and is stored in the band-shaped material 10 in a substantially cut state and is flush with the band-shaped material 10. The plate material 13 which becomes the top is formed. The upper end surface of the pressing punch 22 is flat and can be moved up and down in the die 21.
In this embodiment, the plate member 13 was subjected to outline processing by full punching or half punching, but trimming was performed leaving a part, and the partial connecting portion was cut at the last (G) station, The belt-like material 10 and the plate material 13 may be separated. In this case, it is preferable to provide a plurality of partial connection portions between the plate material 13 and the remaining strip-shaped material 10 around the plate material 13.

In the second punching processing station indicated by (D), the punching of the plate material 14 is performed by a die 23 and a punch 24, which are examples of external punching tools. Then, after the plate material 14 is punched from the belt-like material 10, the plate material 14 is pushed into the die 23. The depth to be pushed into the die 23 is about 0.5 to 2 times the plate thickness of the belt-like material 10. Further, the die 23 is provided with a laminated punch 25 so that the plate material 14 pushed into the die 23 can be pushed out at a desired timing.
Further, the punch 24 is formed with escape holes 26 for protecting the caulking protrusions 19 projecting downward formed in the plate member 14.

In the third punching station indicated by (E), the punching of the plate material 15 is performed by a die 27 and a punch 28, which are examples of an external punching tool. Then, after punching the plate material 15 from the belt-like material 10, the plate material 15 is pushed into the die 27 by the punch 28. The depth at which the plate material 15 is pushed into the die 27 is about 0.5 to 2 times the plate thickness of the belt-like material 10 (that is, the plate material 15). The die 27 is provided with a laminated punch 29 so that the plate material 15 pushed into the die 27 can be pushed out at a desired timing. The punch 28 is formed with relief holes 30 that respectively protect the caulking protrusions 19 projecting downward formed in the plate material 15.

In the fourth punching station indicated by (F), the punching of the plate material 16 is performed by a die 31 and a punch 32, which are examples of external punching tools. Then, after punching the plate material 16 from the belt-like material 10, the plate material 16 is pushed into the die 31 by the punch 32. The pressing depth of the plate material 16 into the die 31 is about 0.5 to 2 times the plate thickness of the belt-like material 10 (that is, the plate material 16). The die 31 is provided with a lamination punch 33 so that the plate material 16 pushed into the die 31 can be pushed out at a desired timing. In the punch 32, escape holes 34 are formed to protect the caulking protrusions 19 protruding downward formed in the plate material 16.

The processing station indicated by (G) is formed by the second, third, and fourth punching stations, and finally the plate 14 laminated on the plate 13 formed by the first punching station, This is a separation processing station for separating the laminate 17 including 15 and 16 from the belt-like material 10, and includes a separation punch 35 and a die 36. The separation punch 35 is not movable at a timing when the separation is not performed.
In this embodiment, the size of the lowermost plate member 13 is the largest and includes the other plate members 14 to 16.

Next, the operation and action of the laminate manufacturing apparatus 38 having the processing stations (A) to (G) will be described.
The band-like material 10 in which the predetermined pilot holes 11 and 12 are formed is sequentially conveyed into the laminate manufacturing apparatus 38, but the first plate member 13 is formed at the processing station (A). A caulking hole 18 is formed. (A) becomes an idle station for the second to fourth plate members 14 to 16.

For the formation portions of the second to fourth plate members 14 to 16, the caulking projections 19 are formed at the processing station (B). Then, the belt-like material 10 is intermittently fed in sequence, and the formation portion of the first plate 13 is used as the processing station (C), the formation portion of the second plate 14 is used as the processing station (D), and the third plate. The forming portion 15 is positioned at the processing station (E), and the forming portion of the fourth plate 16 is positioned at the processing station (F). During this time, the processing stations (C) to (F) do not operate. With the belt-like material 10 in this state, the punches 20, 24, 28, 32 of the processing stations (C) to (F) are operated. The processing stations (C) to (F) may be operated simultaneously, but the processing stations (A) to (F) may be operated in sequence or in groups.

By operating the processing station (C), as described above, the first plate member 13 that has been completely or half-extracted is held in the band-shaped material 10 by performing separate pressing processing or non-separating pressing processing. By operating the processing stations (D) to (F), the second to fourth plate members 14 to 16 are held inside the upper dies 23, 27, and 31.
In this state, the belt-shaped material 10 is sequentially fed by one station. As a result, the first plate 13 is moved to the processing station (D), and the stacking punch 25 of the processing station (D) is lowered, and the plate 14 is caulked and stacked on the plate 13.

Thereafter, the belt-like material 10 is sequentially fed by one station, and the plate material 13 on which the plate material 14 is laminated is moved to the processing station (E). Then, the laminating punch 29 is lowered and the plate material 15 is caulked and laminated on the plate material 14. Then, the belt-like material 10 is sequentially fed by one station, the plate material 13 on which the plate materials 15 and 14 are placed is moved to the processing station (F), the lamination punch 33 is operated, and the plate material 16 is caulked and laminated on the plate material 15. A laminated body 17 semi-fixed to the belt-like material 10 is formed. The above state is shown at the bottom of FIG.

Then, the belt-like material 10 is sequentially fed by one station, the laminated body 17 semi-fixed to the belt-like material 10 is moved to the processing station (G), and the laminated body 17 is removed using the separation punch 35 and the die 36. Pull out into the die 36.
Thereby, the laminated body 17 is completed. In this state, the formation portions of the plate materials 13 to 16 on which the caulking holes 18 and the caulking protrusions 19 are formed are arranged in the processing stations (C) to (F), respectively, and the processing of (C) to (F) is performed. By performing the operation described above at the station, the next laminate 17 is formed.
In the above-described embodiment, the lower end surfaces of the lamination punches 25, 29, and 33 are flat, but they are fitted into the recesses of the caulking protrusions 19 (half punched caulking) formed on the plate members 14, 15, and 16. It is also possible to provide projections (doughs) to be performed, whereby the plate members 13 to 16 can be surely laminated by caulking.

Then, the manufacturing method of the laminated body which concerns on the 2nd Embodiment of this invention is demonstrated, referring FIG.
In the laminate 40 manufactured by the method according to this embodiment, the uppermost (that is, the first) plate material 41 is fixed to the belt-shaped material 10, and the second to fifth (nth) plate materials 42 to 45 are formed. The layers are sequentially stacked downward.
Four caulking holes 46, which are examples of caulking portions, are formed in the plate material 41, and upward caulking projections 47, which are examples of caulking portions, are formed in the plate materials 42 to 45, respectively, and five plate materials 41 to 45 are caulked portions. Are stacked and connected. A shaft hole 48 with a keyway is formed at the center of the laminate 40.

In manufacturing the laminated body 40, the caulking portion processing station for forming the caulking hole 46 may be the same as the processing station (A) in the manufacturing apparatus 38 according to the first embodiment, but the caulking projection is formed. In the caulking portion processing station, a convex half punched caulking is formed. The punching of the shaft hole 48 is preferably performed before the formation of the caulking portion.
The formation of the plate material 41 is basically the same as that of the manufacturing apparatus 38 according to the first embodiment. The plate material 41 is half-punched using a punch and a die and separated into a strip-shaped material 10 by a pressing punch. Perform indentation or non-separation indentation.

In the formation of the second to fifth plate members 42 to 45, the plate member 42 formed by punching and forming each of the punches and dies in the outer punching tool (die) below the outer punching tools (punch and die) which are the upper and lower pairs. ˜45 are stored respectively. This state is basically the same as the processing stations (D) to (F) of the manufacturing apparatus 38 according to the first embodiment, but the positions of the die and punch are upside down. Each die is provided with an extruding punch (stacked punch).

In the last separation processing station, a separation punch having the same shape as the punch for punching out the first plate member 41 is provided on the upper side of the belt-like material 10, and a die to be paired with this punch is not provided. And the laminated body 40 is cut | disconnected from the strip | belt-shaped material 10 by the fall of this punch. In addition, since a bending load is applied to the strip-shaped material 10 when the punch is lowered, it is preferable to provide a clamp portion for fixing the periphery of the strip-shaped material 10.
The laminated body 40 is manufactured as described above.

In the above-described embodiment, the shape and the number of plate materials are specified and described, but the shape and the number of plate materials can be freely selected. Moreover, you may use the board | plate material of the same shape partially.
The band-shaped material according to the above embodiment is a magnetic plate having a thickness of, for example, 0.2 to 2 mm. However, the present invention can be applied to a metal plate other than the magnetic plate.
The number and shape of the caulking portions are free.

It is explanatory drawing which shows the manufacturing process of the manufacturing method of the laminated body which concerns on the 1st Embodiment of this invention. It is explanatory drawing of the board | plate material which is going to laminate | stack by the manufacturing method. (A), (B) is explanatory drawing of the manufacturing method of the laminated body which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

10: strip material, 11, 12: pilot hole, 13-16: plate material, 17: laminate, 18: caulking hole, 19: caulking protrusion, 20: punch, 21: die, 22: pressing punch, 23: die 24: Punch, 25: Laminated punch, 26: Escape hole, 27: Die, 28: Punch, 29: Laminated punch, 30: Escape hole, 31: Die, 32: Punch, 33: Laminated punch, 34: Escape hole , 35: cutting punch, 36: die, 38: laminate manufacturing apparatus, 40: laminate, 41-45: plate material, 46: caulking hole, 47: caulking projection, 48: shaft hole

Claims (5)

In the manufacturing method of the laminated body formed by combining the 1st to nth plate materials having different external shapes or partly the same in the laminating direction,
The first to nth plate material forming portions are assigned to the band-shaped material, and the caulking portions are respectively formed in the formed portions in advance, and the band-shaped material is sent to a processing station that punches and forms the outer shape of the first to nth plate materials. The first step;
The outer shape of the first plate material is extracted at the forming portion corresponding to the first plate material, and further pushed back to the original by separate indentation processing or non-separate indentation processing, and the outer shape of the second to nth plate material is extracted, A second step of accommodating inside one of the upper and lower outer shape cutters;
A third step of sequentially feeding the strip-shaped material, caulking and laminating the second plate material on the first plate material, and then caulking and laminating the n-th plate material sequentially on the previous plate material;
And a fourth step of separating the first plate material, on which the 2nd to nth plate materials are caulked and laminated, from the strip material. 2. The method for manufacturing a laminate according to claim 1, wherein in the second step, the first plate material is extracted from the outer shape and subjected to separate indentation processing or non-separate indentation processing, and the second to nth plate materials are extracted from the outer shape. And the process of accommodating in the inner side of the external shape cutting tool is performed simultaneously or separately, The manufacturing method of the laminated body characterized by the above-mentioned. 3. The method for manufacturing a laminated body according to claim 1, wherein the second to n-th plate members are stored in an upper cutter among the outer cutters that are paired vertically when the outer shape is removed. The manufacturing method of the laminated body characterized by the above-mentioned. 3. The method for manufacturing a laminated body according to claim 1, wherein the second to n-th plate members are stored in a lower cutter among the outer cutters that are paired up and down when the outer shape is removed. And the 2nd to nth plate members extruded from the lower cutter are stacked on the lower surface side of the first plate member. In the manufacturing apparatus of the laminated body formed by combining the 1st to nth plate materials having different external shapes or partly the same in the laminating direction,
A caulking part processing station for forming caulking parts in the band-shaped materials to which the first to nth plate material forming parts are assigned,
Following the caulking section processing station, the first punching process is performed by punching out the first plate member at the forming portion corresponding to the first plate member and pressing it back into the strip-shaped material by separating or non-separating pressing. Station,
Subsequent to the first punching station, the 2nd to nth plate members are punched in the 2nd to nth plate material forming portions, and are accommodated inside one of the upper and lower outer shape cutters. 2nd to nth punching stations;
a separation processing station that follows the n-th punching station and separates the first plate material from which the second to n-th plate materials are caulked and laminated from the strip material;
In addition, each of the 2nd to nth punching stations extrudes the plate housed in one of the outer punched blades, and stacks by caulking and laminating the plate material formed in the previous punching station. An apparatus for manufacturing a laminate, comprising a punch.

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