WO2017130324A1 - 積層材の加工方法 - Google Patents
積層材の加工方法 Download PDFInfo
- Publication number
- WO2017130324A1 WO2017130324A1 PCT/JP2016/052329 JP2016052329W WO2017130324A1 WO 2017130324 A1 WO2017130324 A1 WO 2017130324A1 JP 2016052329 W JP2016052329 W JP 2016052329W WO 2017130324 A1 WO2017130324 A1 WO 2017130324A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thin plate
- caulking
- plate material
- processing
- width direction
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/04—Centering the work; Positioning the tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/035—Joining superposed plates by slitting
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/20—Storage arrangements; Piling or unpiling
- B21D43/22—Devices for piling sheets
Definitions
- This invention relates to the processing method of the laminated material which punches with respect to the several thin plate material arrange
- the present invention has been made in view of such circumstances, and when performing a punching process on a plurality of stacked thin plate materials, the periphery of the pilot hole is prevented by a pilot pin by preventing a shift between the thin plate materials. It aims at providing the processing method of the laminated material which can perform a highly accurate punching process, without deforming.
- the plurality of thin plate materials are formed into a plurality of thin plate materials that form a crimping group having a plurality of crimping portions having different directions in plan view, and After fixing the position of the thin plate material, a preset punching process is performed on the thin plate material positioned by the pilot hole.
- the caulking groups are formed on both sides in the width direction of the thin plate material, and the pilot holes are formed between adjacent caulking portions constituting the caulking group. It is preferable.
- the formation positions of the caulking groups on both sides in the width direction of the thin plate material are preferably symmetric with respect to the center position in the width direction of the thin plate material.
- the caulking group is further formed at a central portion in the width direction of the thin plate material.
- the width direction center part of a thin-plate material does not need to be the center position of the width direction completely, and should just be a substantially center (part except the width direction both ends).
- the caulking group at the center portion in the width direction of the thin plate material is formed in a region discarded by the punching process or a region that becomes a remaining material after the punching process.
- the caulking group is composed of the caulking portions that form a pair, and the direction of one of the caulking portions is the feeding direction of the thin plate material, and the direction of the other caulking portion is the direction of the caulking portion.
- the direction perpendicular to the feeding direction of the thin plate material is preferable.
- the caulking portion is formed in a rectangular shape in plan view, and one side of the short side facing the caulking portion is separated from the thin plate material, and the other side is thinned. It is preferable to bend the plate material.
- a plurality of thin plate materials arranged in a stack form a crimped group having a plurality of crimping portions having different directions, so that the position of the stacked thin plate materials can be fixed.
- the center positions of the pilot holes formed in the respective thin plate materials always coincide with each other. Therefore, when inserting the pilot pin into the pilot hole or when removing the pilot pin from the pilot hole, the periphery of the pilot hole is not deformed, and the positioning accuracy of the pilot hole is excellent. Can be punched with high precision.
- the caulking group is formed at the center in the width direction of the thin plate material, for example, even a wide thin plate material in which the stacked thin plate materials are likely to be displaced can be prevented from occurring.
- a place for forming the caulking group is newly formed by forming the caulking group in the central portion in the width direction of the thin plate material in an area discarded by the punching process or an area that becomes a remaining material after the punching process. There is no need to secure it.
- FIG. 1 It is explanatory drawing of the processing method of the laminated material which concerns on one Example of this invention.
- (A)-(C) are explanatory drawings of the caulking part according to each modification.
- (A) is explanatory drawing which shows the fitting state of the pilot pin to a pilot hole
- (B) is explanatory drawing which shows the de-hole state of the pilot pin from a pilot hole.
- (A) is a perspective view which shows the joining state of the two laminated
- (B) is a top view of the crimping of a junction part
- (C) is a sectional side view of (B).
- the method for processing a laminated material is a thin plate material when punching is performed on a plurality of stacked thin plate materials 10 (which constitute a laminated material).
- This is a method in which the punching process with high accuracy can be performed without deforming the periphery of the positioning pilot hole 12 by the pilot pin 11 by preventing the displacement between the ten.
- the laminated iron core may be either a rotor (rotor) or a stator (stator).
- the thin plate material 10 used for manufacturing the laminated iron core is a strip made of an electromagnetic steel plate having a thickness of, for example, about 0.10 to 0.5 mm (here, 0.25 mm).
- the number of laminated thin plate members 10 is two. However, depending on the thickness of the thin plate member or the like (in the case of being thin), for example, the number may be three or more.
- the caulking portion forming process will be described.
- the caulking group 13 is formed on a plurality of thin plate members 10 arranged in an overlapping manner.
- the caulking group 13 includes caulking portions 14 and 15 that form a pair.
- Each of the caulking portions 14 and 15 is formed by cutting and bending (also referred to as half-cutting or half-bending), but may have various shapes conventionally used such as trapezoidal shape, V shape, and round flat shape.
- the cutting process is a process of forming a rectangular shape in plan view, and is formed by separating one side 16 of the opposing short side from the thin plate material 10 and bending the other side 17 with respect to the thin plate material 10. .
- the bending inclination angle is, for example, 20 to 45 degrees with respect to the surface of the thin plate material 10.
- the caulking portions 14 and 15 that form a pair have different directions.
- “different directions” means that the directions (directions) of the long sides 18 of the caulking portions 14 and 15 are different directions (intersection directions) in plan view.
- the caulking portion is formed so that the caulking portion formed on one thin plate material protrudes toward the other thin plate material so that the stacked thin plate materials do not deviate from each other.
- the thin plate materials are likely to be displaced along the direction of the caulking portion.
- the position of the stacked thin plate members 10 can be fixed by the synergistic effect of the caulking portion 14 and the caulking portion 15 (can be brought into a state in which no deviation occurs). .
- the caulking group 13 is formed on both sides in the width direction of the thin plate member 10 with the caulking portions 14 and 15 as one set (one set).
- the positions where these caulking groups 13 are formed are symmetrical with respect to the center position (center line m) in the width direction of the thin plate member 10, but may be asymmetrical positions.
- a planned formation position 19 of the pilot hole 12 formed in a pilot hole forming step described later is set between the adjacent caulking portion 14 and the caulking portion 15 constituting the caulking group 13. . Thereby, the shift
- the caulking portions 14, 15 are formed with respect to the pilot hole 12 (formation formation position 19).
- One caulking portion 14 is on the upstream side in the feed direction of the thin plate material 10, and the other caulking portion 15 is a thin plate material. 10 on the downstream side in the feed direction.
- the direction of one caulking portion 14 (the direction of the long side 18) is the feeding direction of the thin plate material 10 (the length direction of the thin plate material 10), and the direction of the other caulking portion 15 is the feeding direction of the thin plate material 10. It is set as the direction (width direction of the thin board
- the two caulking portions 14 formed on both sides in the width direction of the thin plate material are positions of one side 16 (separated portion) and the other side 17 (folded portion) with respect to the short sides opposed in the feeding direction of the thin plate material 10. Are opposite positions (the separation position and the bending position are different), but they may be the same position. Further, in the two caulking portions 15 formed on both sides in the width direction of the thin plate material, the positions of the one side 16 and the other side 17 are opposite positions with respect to the short sides facing each other in the width direction of the thin plate material 10. The same position may be used.
- the caulking portions 14 and 15 constituting the caulking group 13 are not limited to the above-described configuration, and for example, can be configured as shown in FIGS.
- the direction of the one caulking portion 14 described above is the width direction of the thin plate material 10
- the direction of the other caulking portion 15 is the feeding direction of the thin plate material 10.
- the formation positions of the caulking portion 14 and the caulking portion 15 shown in FIG. 1 are interchanged).
- the caulking portions 14 and 15 that is, the caulking group 13
- that form a pair are formed symmetrically with respect to the center line m in the width direction of the thin plate member 10.
- the caulking portions 14 and 15 shown in FIG. 2B are configured such that the direction of the one caulking portion 14 described above is inclined with respect to the feeding direction of the thin plate material 10 and the direction of the other caulking portion 15 is changed to the thin plate material. 10 is inclined with respect to the width direction.
- the caulking portions 14 and 15 that is, the caulking group 13
- the caulking portion 14 shown in FIG. 2C is obtained by further increasing the inclination direction of the caulking portion 14 shown in FIG.
- the caulking portions 14 and 15 (that is, the caulking group 13) that form a pair are formed asymmetrically with respect to the center line in the width direction of the thin plate member 10.
- the above-mentioned caulking group can be formed also in the central portion in the width direction of the thin plate material. Thereby, it is possible to more effectively prevent the occurrence of deviation with respect to a thin plate material having a wide width (for example, 50 cm or more, and further 100 cm or more).
- a caulking group when a caulking group is formed in the center portion in the width direction of a thin plate material, it is an area (scrap area) discarded by a punching process, which will be described later, or an area (residual material) remaining after the punching process. (Material region) is preferably formed. Thereby, it is not necessary to secure a new place for forming the caulking group, and the thin plate material can be used without waste.
- the thin plate material 10 is sent to the pilot hole forming step as shown in FIG.
- the pilot hole 12 is formed at the planned formation position 19 of the pilot hole 12 in a state where the positions of the plurality of thin plate members 10 are fixed by the caulking portions 14 and 15.
- the thin plate material 10 positioned in the pilot hole 12 is The preset punching process shown below is performed.
- the slot 20 is formed (punched).
- the caulking hole 21 is formed (punched). If the caulking hole 21 is not formed, the caulking protrusion 22 is formed in the product caulking protrusion forming step.
- the core piece 23 is punched out in the outer shape removal step, and a plurality of the core pieces 23 are laminated to manufacture a laminated core.
- the caulking group is preferably formed in the above-described slot forming region or the region without the internal shape.
- a caulking group is formed in a region (scrap region) to be discarded by punching, there is a possibility that the stacked thin plate materials are displaced in the process after the punching region is punched.
- a caulking group is formed on the thin plate material (that is, the region that becomes the remaining material after the punching process) near the center in the width direction (substantially the center) of the thin plate material and after the outer shape punching process is completed. Accordingly, it is possible to reliably prevent the thin plate materials from shifting to the outer shape removal step.
- the pilot pin 11 is inserted from the pilot hole 12 when the pilot pin 11 is inserted into the pilot hole 12.
- the pilot holes 12 can be prevented from being deformed. Therefore, the positioning accuracy of the pilot hole 12 is excellent, and the thin plate material 10 can be punched with high accuracy.
- the present invention has been described with reference to the embodiments. However, the present invention is not limited to the configurations described in the above-described embodiments, and is within the scope of the matters described in the claims. Other possible embodiments and modifications are also included. For example, a case where the laminated material processing method of the present invention is configured by combining a part or all of the above-described embodiments and modifications is also included in the scope of the right of the present invention.
- the present invention is not limited to this, and a plurality of thinly arranged sheets are stacked.
- the present invention can be applied to a case where a plate material is punched with a mold apparatus. In this case, the number of thin sheet materials to be stacked, the thickness and width of the thin sheet materials, and the like can be variously changed according to the application.
- the caulking portion forming step and the pilot hole forming step are sequentially performed in a state where a plurality of thin plate materials are stacked.
- the caulking portion forming step is performed simultaneously with the pilot hole forming step. It can also be performed, or can be performed after (immediately after) the pilot hole forming step.
- the caulking group was comprised by the caulking part used as a pair was demonstrated, it can also be comprised by a 3 or more several caulking part. In this case, it is only necessary that at least two (or all) caulking portions have different directions.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Punching Or Piercing (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
Description
例えば、2枚の薄板材を重ねて打ち抜き加工する場合、重ねた2枚の薄板材を、互いにずれないようにして金型装置(打ち抜き装置)内に送っている。具体的には、重ねた薄板材に対し、送り方向に一定の距離だけ離間した位置にかしめ又はスポット溶接を施して、薄板材同士を接合する方法(例えば、特許文献1参照)や、薄板材の片側端面を溶接して一体化する方法(例えば、特許文献2参照)が知られている。なお、一般的には、生産性の向上と設備等のコスト削減の事情から、かしめによる接合が広く採用されている。
このため、パイロット孔72へパイロットピン73を挿入して位置決めする際に、パイロット孔72の周辺を変形させたり、また、パイロット孔72からパイロットピン73を脱孔する際にも、パイロットピン73が抜け難くなっていると、これを強引に引き抜くことによってパイロット孔72の周辺を変形させたりするという問題が発生する。
このように、パイロット孔72の周辺が変形すると、以降の工程において、パイロット孔72を用いる位置決め精度が著しく低下するという問題があった。
ここで、前記薄板材の幅方向両側の前記かしめ群の形成位置を、該薄板材の幅方向の中心位置に対して対称の位置とするのがよい。
ここで、前記薄板材の幅方向中央部の前記かしめ群を、前記打ち抜き加工によって廃棄される領域、又は、前記打ち抜き加工後に残材となる領域に、形成することが好ましい。
従って、パイロットピンをパイロット孔へ挿入する際、あるいは、パイロット孔からパイロットピンを脱孔する際にも、パイロット孔の周辺を変形させることがなく、パイロット孔の位置決め精度に優れ、ひいては、薄板材を高精度に打ち抜き加工できる。
ここで、薄板材の幅方向中央部のかしめ群を、打ち抜き加工によって廃棄される領域、又は、打ち抜き加工後に残材となる領域に、形成することで、かしめ群を形成するための場所を新たに確保する必要がない。
図1に示すように、本発明の一実施例に係る積層材の加工方法は、重ねて配置した複数枚の薄板材10(積層材を構成)に対して打ち抜き加工を行う際に、薄板材10同士のずれを防止することで、位置決め用のパイロット孔12の周辺をパイロットピン11によって変形させることなく、精度の高い打ち抜き加工を行うことができる方法である。
ここで、積層鉄心の製造に使用する薄板材10は、厚みが、例えば、0.10~0.5mm(ここでは、0.25mm)程度の電磁鋼板からなる条材である。この薄板材10の積層枚数は2枚であるが、薄板材の厚み等に応じて(薄い場合は)、例えば、3枚以上にすることも可能である。
この工程では、重ねて配置した複数枚の薄板材10にかしめ群13を形成する。
かしめ群13は、対となるかしめ部14、15で構成されている。この各かしめ部14、15は切曲げ(片切りや片曲げともいう)加工により形成されるが、例えば、台形、V形、丸平等の従来使用されている様々な形状のものでもよい。なお、切曲げ加工は、平面視して矩形状に形成する加工であり、対向する短辺の一辺16を薄板材10から切り離し、他辺17を薄板材10に対し折り曲げて形成したものである。また、折り曲げの傾斜角度は、薄板材10の表面に対して、例えば、20~45度である。
ここで、向きが異なるとは、かしめ部14、15の長辺18の向き(方向)を、平面視して異なる向き(交差する向き)とすることを意味する。
通常かしめ部は、一方の薄板材に形成したかしめ部が、他方の薄板材に向けて突出することにより、重ねた薄板材同士がずれないようにするものである。しかし、かしめ部が1つの場合、かしめ部の向きに沿って薄板材同士にずれが発生し易くなる。
そこで、上記したように、かしめ部の向きを異ならせることで、かしめ部14とかしめ部15の相乗効果により、重ねた状態の薄板材10の位置を固定できる(ずれを発生させない状態にできる)。
特に、ここでは、かしめ群13を構成する、隣り合うかしめ部14とかしめ部15との間に、後述するパイロット孔形成工程で形成するパイロット孔12の形成予定位置19が設定されるようにする。これにより、2枚の薄板材10にそれぞれ形成されるパイロット孔12の中心位置のずれを、より効果的に防止できる。
また、一方のかしめ部14の向き(長辺18の向き)を、薄板材10の送り方向(薄板材10の長さ方向)とし、他方のかしめ部15の向きを、薄板材10の送り方向に直交する方向(薄板材10の幅方向)としている。
また、薄板材の幅方向両側に形成される2つのかしめ部15においても、薄板材10の幅方向で対向する短辺について、一辺16と他辺17の位置が逆位置となっているが、同じ位置でもよい。
図2(A)に示すかしめ部14、15は、上記した一方のかしめ部14の向きを、薄板材10の幅方向とし、他方のかしめ部15の向きを、薄板材10の送り方向とした(図1に記載のかしめ部14とかしめ部15の形成位置を入れ替えた)ものである。なお、対となるかしめ部14、15(即ち、かしめ群13)は、薄板材10の幅方向の中心線mに対して対称に形成されている。
そして、図2(C)に示すかしめ部14は、図2(B)に示すかしめ部14の傾斜方向を更に大きくしたものである。なお、対となるかしめ部14、15(即ち、かしめ群13)は、薄板材10の幅方向の中心線に対して非対称に形成されている。
また、上記したように、薄板材の幅方向中央部にかしめ群を形成する場合は、後述する打ち抜き加工によって廃棄される領域(スクラップ領域)に、又は、打ち抜き加工後に残材となる領域(残材領域)に、形成することが好ましい。これにより、かしめ群を形成するための場所を新たに確保する必要がなく、薄板材を無駄なく利用できる。
この工程では、かしめ部14、15により、複数枚の薄板材10同士の位置を固定した状態で、パイロット孔12の形成予定位置19に、パイロット孔12を形成する。
そして、図示しない金型装置により、パイロット孔12へのパイロットピン11の挿入と、パイロット孔12からのパイロットピン11の脱孔を繰り返し行いながら、パイロット孔12で位置決めされた薄板材10に対して、以下に示す予め設定した打ち抜き加工を行う。
次に、製品かしめ孔形成工程で、かしめ孔21の形成(打ち抜き)を行う。また、かしめ孔21の形成を行わない場合は、製品かしめ突起形成工程で、かしめ突起22の形成を行う。
そして、内形抜き工程で、内形抜きを行った後、外形抜き工程で、鉄心片23の打ち抜きを行うと共に、この鉄心片23を複数枚積層することで、積層鉄心を製造できる。
なお、かしめ群を薄板材の幅方向中央部に形成する場合は、かしめ群を、上記したスロットの形成領域や内形抜きの領域に形成することが好ましい。ただし、打ち抜き加工によって廃棄される領域(スクラップ領域)にかしめ群を形成した場合、打ち抜き領域が打ち抜かれた以降の工程で、重ねた薄板材にずれが生じる可能性もある。そのような場合は、薄板材の幅方向中央付近(略中央)で、かつ、外形抜き工程の終了後に残存する薄板材(即ち、打ち抜き加工後に残材となる領域)に、かしめ群を形成することにより、外形抜き工程まで確実に、薄板材同士のずれを防止することができる。
従って、パイロット孔12の位置決め精度に優れ、薄板材10を高精度に打ち抜き加工できる。
例えば、前記実施例においては、本発明の積層材の加工方法を用いて、積層鉄心を加工する場合について説明したが、本発明はこれに限定されることなく、重ねて配置した複数枚の薄板材に対して金型装置で打ち抜き加工する場合であれば、適用可能である。この場合、重ねる薄板材の枚数、薄板材の厚みや幅等は、適用用途に応じて種々変更できる。
更に、前記実施例においては、かしめ群を、対となるかしめ部で構成した場合について説明したが、3つ以上の複数のかしめ部で構成することもできる。この場合、少なくとも2つ(全部でもよい)のかしめ部について、向きが異なっていればよい。
Claims (7)
- 重ねて配置した複数枚の薄板材に、平面視して向きが異なる複数のかしめ部を有するかしめ群を形成し、重ねた状態の前記薄板材の位置を固定した後、パイロット孔で位置決めされた前記薄板材に対して、予め設定した打ち抜き加工を行うことを特徴とする積層材の加工方法。
- 請求項1記載の積層材の加工方法において、前記かしめ群を、前記薄板材の幅方向両側にそれぞれ形成し、しかも、該かしめ群を構成する隣り合うかしめ部の間に、前記パイロット孔を形成することを特徴とする積層材の加工方法。
- 請求項2記載の積層材の加工方法において、前記薄板材の幅方向両側の前記かしめ群の形成位置を、該薄板材の幅方向の中心位置に対して対称の位置とすることを特徴とする積層材の加工方法。
- 請求項2又は3記載の積層材の加工方法において、更に、前記かしめ群を、前記薄板材の幅方向中央部に形成することを特徴とする積層材の加工方法。
- 請求項4記載の積層材の加工方法において、前記薄板材の幅方向中央部の前記かしめ群を、前記打ち抜き加工によって廃棄される領域、又は、前記打ち抜き加工後に残材となる領域に、形成することを特徴とする積層材の加工方法。
- 請求項1~5のいずれか1項に記載の積層材の加工方法において、前記かしめ群は対となる前記かしめ部で構成され、一方の前記かしめ部の向きを、前記薄板材の送り方向とし、他方の前記かしめ部の向きを、前記薄板材の送り方向に直交する方向とすることを特徴とする積層材の加工方法。
- 請求項1~6のいずれか1項に記載の積層材の加工方法において、前記かしめ部を、平面視して矩形状に形成し、しかも、該かしめ部の対向する短辺の一辺を前記薄板材から切り離し、他辺を前記薄板材に対し折り曲げて形成することを特徴とする積層材の加工方法。
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JP2021003709A (ja) * | 2019-06-25 | 2021-01-14 | アイシン・エィ・ダブリュ株式会社 | 順送プレス装置における被加工部材の搬送方法および順送プレス装置 |
WO2023054027A1 (ja) * | 2021-09-30 | 2023-04-06 | 株式会社三井ハイテック | 順送り金型装置および積層鉄心の製造方法 |
JP7368471B2 (ja) | 2018-11-20 | 2023-10-24 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 電気モータ用のロータ積層板シートおよびステータ積層板シートのような金属部品を製造するための多層打抜き方法および装置 |
JP7459110B2 (ja) | 2018-12-24 | 2024-04-01 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 金属部品を製造するための多層精密打抜きプロセスおよびそのようなプロセスを実行するための精密打抜き装置 |
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JP7063074B2 (ja) * | 2018-04-11 | 2022-05-09 | トヨタ紡織株式会社 | プレス加工装置 |
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