JPWO2023182027A5 - - Google Patents
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- JPWO2023182027A5 JPWO2023182027A5 JP2023571256A JP2023571256A JPWO2023182027A5 JP WO2023182027 A5 JPWO2023182027 A5 JP WO2023182027A5 JP 2023571256 A JP2023571256 A JP 2023571256A JP 2023571256 A JP2023571256 A JP 2023571256A JP WO2023182027 A5 JPWO2023182027 A5 JP WO2023182027A5
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 46
- 229910052742 iron Inorganic materials 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 23
- 230000004323 axial length Effects 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000004080 punching Methods 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 description 1
Description
本開示の第１のロータは、円筒部の外周に周方向に等間隔離れて複数の突起部が径方向外方に形成される突起形成部位が形成されている。そして、突起部は、円筒部の鉄材料で円筒部の外周に一体形成されている。また、突起部は周方向の両側と軸方向の両側に辺を有する長方形状であって軸方向長さが周方向長さより長い長方形状である。 In the first rotor of the present disclosure, a protrusion forming portion is formed on the outer periphery of the cylindrical portion, in which a plurality of protrusions are formed radially outward at equal intervals in the circumferential direction. The protruding portion is integrally formed on the outer periphery of the cylindrical portion using the iron material of the cylindrical portion. Further, the protrusion has a rectangular shape having sides on both sides in the circumferential direction and both sides in the axial direction, and the length in the axial direction is longer than the length in the circumferential direction.
本開示の第１のロータは、円筒部の内周に突起部と対応する部位に複数の凹部が形成される凹部形成部位が形成されている。そして、凹部は周方向の両側と軸方向の両側に辺を有する長方形状であって軸方向長さが周方向長さより長い長方形状である。また、突起部及び凹部は、円筒部の軸方向のほぼ中央となる位置に形成されている。 In the first rotor of the present disclosure, a recess formation region in which a plurality of recesses are formed is formed on the inner periphery of the cylindrical portion in a region corresponding to the protrusion. The recess has a rectangular shape having sides on both sides in the circumferential direction and both sides in the axial direction, and the length in the axial direction is longer than the length in the circumferential direction. Furthermore, the protrusion and the recess are formed at approximately the center of the cylindrical portion in the axial direction.
本開示の第１では、突起部の軸方向中間位置と凹部の軸方向中間位置はほぼ一致し、突起部の軸方向長さも凹部の軸方向長さとほぼ一致して突起部の軸方向幅と凹部の軸方向幅をほぼ一致させて、突起部の形状を軸方向でガイドして突起部の周方向の形状を安定させて突起部の形状を規定している。一方、突起部の周方向中間位置と凹部の周方向中間位置はほぼ一致し、突起部の周方向長さに対し凹部の周方向長さは長く突起部の周方向幅に比べて凹部の周方向幅が幅広で、円筒部の鉄材料を周方向から突起部に集めて突起部の高さを高くしている。 In the first aspect of the present disclosure, the axial intermediate position of the protrusion and the axial intermediate position of the recess substantially match, and the axial length of the protrusion also substantially matches the axial length of the recess and the axial width of the protrusion. The shape of the protrusion is defined by making the axial widths of the recesses substantially the same and guiding the shape of the protrusion in the axial direction to stabilize the circumferential shape of the protrusion . On the other hand, the circumferential intermediate position of the protrusion and the circumferential intermediate position of the recess are almost the same, and the circumferential length of the recess is longer than the circumferential width of the protrusion. The width in the direction is wide, and the height of the protrusion is increased by gathering the iron material of the cylindrical part into the protrusion from the circumferential direction .
本開示の第６は、以上の構成のロータを用いた回転電機であり、回転電機は突起部の位置を検知する磁気検知装置を備えている。A sixth aspect of the present disclosure is a rotating electrical machine using the rotor configured as described above, and the rotating electrical machine includes a magnetic detection device that detects the position of the protrusion.
本開示の第８は、回転電機用ロータの製造方法である。本開示の第８の回転電機用ロータの製造方法は、鉄材料製平板から中心部にボス部の支持用の中心部丸穴を打ち抜きこの中心部丸穴と同軸上に円形平板を打ち抜く平板打ち抜き工程と、円形平板の外周部を軸方向に折り曲げ中心部丸穴の中心軸を中心にする円盤状の底部とこの底部の径方向外周に配置される円筒部とを形成する円筒部折り曲げ工程と、底部にボス部の固定穴を形成する穴抜き工程とを備える。An eighth aspect of the present disclosure is a method of manufacturing a rotor for a rotating electric machine. An eighth method of manufacturing a rotor for a rotating electrical machine according to the present disclosure is to punch a central round hole for supporting a boss part in the center of a flat plate made of iron material, and punch out a circular flat plate coaxially with the central round hole. and a cylindrical part bending step of bending the outer peripheral part of the circular flat plate in the axial direction to form a disc-shaped bottom part centered on the central axis of the central round hole and a cylindrical part arranged on the radial outer periphery of this bottom part. and a hole punching step of forming a fixing hole for the boss part in the bottom part.
本開示の第８の回転電機用ロータの製造方法は、また、円筒部を内周側より外周側に打ち出して、円筒部の外周に軸方向長さが周方向長さより長い長方形状をした突起部を形成するとともに、円筒部の内周に軸方向長さが周方向長さより長い長方形状をした凹部を形成する外出し工程と、円筒部の内周に永久磁石を保持するように固定する永久磁石固定工程と、中心部丸穴にボス部を配置するとともにボス部を底部に固定穴を利用して固定するボス部固定工程とを有している。 In the eighth method of manufacturing a rotor for a rotating electric machine according to the present disclosure, the cylindrical part is punched out from the inner periphery side to the outer periphery side, and a rectangular protrusion whose axial length is longer than the circumferential length is formed on the outer periphery of the cylindrical part. At the same time as forming a rectangular recess on the inner periphery of the cylindrical part, the axial length is longer than the circumferential length. It has a permanent magnet fixing step and a boss fixing step of arranging the boss portion in the central round hole and fixing the boss portion to the bottom using the fixing hole.
本開示の第８の回転電機用ロータの製造方法では、外出し工程は円筒部の外周に長方形状のダイ凹部を有するダイを配置し、円筒部の内周に長方形状のパンチ凸部を有するパンチを配置し、突起部の根元部における鉄材料のファイバーフローを、周方向では維持し、軸方向では切断するように、パンチをダイ側にプレスすることにより突起部および凹部を形成している。 In the eighth method of manufacturing a rotor for a rotating electrical machine according to the present disclosure, the ejection step includes arranging a die having a rectangular die recess on the outer periphery of the cylindrical portion, and having a rectangular punch convex portion on the inner periphery of the cylindrical portion. Protrusions and recesses are formed by placing a punch and pressing the punch toward the die so that the fiber flow of the iron material at the base of the protrusion is maintained in the circumferential direction and cut in the axial direction. .
本開示の第７は、回転電機用ロータの製造方法である。本開示の第７の製造方法は、鉄材料製平板から中心部にボス部の支持用の中心部丸穴を打ち抜き、この中心部丸穴と同軸上に円形平板を打ち抜く平板打ち抜き工程と、円形平板の外周部を軸方向に折り曲げ中心部丸穴の中心軸を中心にする円盤状の底部と、この底部の径方向外周に配置される円筒部とを形成する円筒部折り曲げ工程と、底部にボス部の固定穴を形成する穴抜き工程とを備えている。 A seventh aspect of the present disclosure is a method of manufacturing a rotor for a rotating electric machine. A seventh manufacturing method of the present disclosure includes a flat plate punching step of punching a central round hole for supporting a boss portion in the center from a flat plate made of iron material and punching out a circular flat plate coaxially with the central round hole; A cylindrical part bending step of bending the outer periphery of the flat plate in the axial direction to form a disc-shaped bottom part centered on the central axis of the central round hole, and a cylindrical part arranged on the radial outer periphery of this bottom part; and a punching step for forming a fixing hole in the boss portion.
本開示の第７の製造方法は、さらに、筒部を内周側より外周側に打ち出して、周方向の両側と軸方向の両側に辺を有する長方形状であって円筒部の外周に軸方向長さが周方向長さより長い長方形状をした突起部を円筒部の軸方向のほぼ中央となる位置に形成するとともに、円筒部の内周に周方向の両側と軸方向の両側に辺を有する長方形状であって軸方向長さが周方向長さより長い長方形状をした凹部を形成する外出し工程も備えている。 In the seventh manufacturing method of the present disclosure, the cylindrical portion is further punched out from the inner periphery side to the outer periphery side, and has a rectangular shape having sides on both sides in the circumferential direction and on both sides in the axial direction. A rectangular protrusion whose length is longer than the circumferential length is formed at a position approximately in the axial center of the cylindrical portion , and the inner periphery of the cylindrical portion has sides on both sides in the circumferential direction and on both sides in the axial direction. It also includes an ejecting step for forming a rectangular recess whose axial length is longer than its circumferential length.
本開示の第７の製造方法では、ロータの成形後、円筒部の内周に、永久磁石を保持するように固定する磁石固定工程と、中心部丸穴にボス部を配置するとともに、ボス部を底部に固定穴を利用して固定するボス部固定工程とを有している。 In the seventh manufacturing method of the present disclosure, after molding the rotor, a magnet fixing step is performed in which a permanent magnet is fixed to the inner circumference of the cylindrical portion, a boss portion is arranged in a central round hole, and a boss portion is placed in a central round hole. and a step of fixing the boss part in the bottom part using the fixing hole.
本開示の第７の製造方法の外出し工程は、円筒部の外周に断面長方形状のダイ凹部を有するダイを配置し、円筒部の内周に断面長方形状のパンチ凸部を有するパンチを配置して、パンチをダイ側にプレスすることで行う。また、外出し工程では、パンチ凸部の軸方向幅はダイ凹部の軸方向幅とほぼ一致して突起部の軸方向幅と凹部の軸方向幅をほぼ一致させて、突起部の形状を軸方向でガイドして突起部の周方向の形状を安定させて突起部の形状を規定する切り出し手法とし、パンチ凸部の周方向幅はダイ凹部の周方向幅より大きくなって突起部の周方向幅に比べて凹部の周方向幅を幅広として、円筒部の鉄材料を周方向から突起部に集めて突起部の高さを高くする押し出し手法としている。かつ、外出し工程では、突起部を円筒部に周方向に等間隔離れて複数形成している。 In the dispensing step of the seventh manufacturing method of the present disclosure, a die having a die recess with a rectangular cross section is arranged on the outer periphery of the cylindrical part, and a punch having a punch convex part with a rectangular cross section is arranged on the inner periphery of the cylindrical part. This is done by pressing the punch against the die side. In addition, in the dispensing process, the axial width of the punch protrusion almost matches the axial width of the die recess , and the axial width of the protrusion and the recess are made to almost match, so that the shape of the protrusion is axially This is a cutting method that defines the shape of the protrusion by guiding it in the circumferential direction to stabilize the circumferential shape of the protrusion, and the circumferential width of the punch protrusion is larger than the circumferential width of the die recess. An extrusion method is used in which the circumferential width of the recess is made wider than the width, and the iron material of the cylindrical portion is collected from the circumferential direction onto the protrusion to increase the height of the protrusion . In addition, in the removal process, a plurality of protrusions are formed on the cylindrical portion at equal intervals in the circumferential direction.
本開示の第７の製造方法では、突起部の形状を、軸方向長さが周方向長さより長い長方形状に成形できるので、磁気検知装置に検知しやすい形状とすることができている。また、本開示の第７の製造方法も、円筒部の内周に突起部と対応する部位に複数の凹部が形成される凹部形成部位を設け、パンチ凸部の周方向幅をダイ凹部の周方向幅より大きくしているので、突起部の高さを高くすることができている。 In the seventh manufacturing method of the present disclosure, the shape of the protrusion can be formed into a rectangular shape in which the axial length is longer than the circumferential length, so that the shape can be easily detected by a magnetic detection device. Further, the seventh manufacturing method of the present disclosure also provides a recess formation region in which a plurality of recesses are formed in a region corresponding to the projection on the inner periphery of the cylindrical portion, and sets the circumferential width of the punch projection to the circumference of the die recess. Since the width is larger than the width in the direction, the height of the protrusion can be increased.
本開示の第２では、突起部の周方向長さに対し、凹部の周方向長さは１．７倍程度以下の大きさで長くなっている。これにより、突起部の高さを高くすることが可能となっている。 In the second aspect of the present disclosure, the circumferential length of the recess is approximately 1.7 times or less longer than the circumferential length of the protrusion. This makes it possible to increase the height of the protrusion.
本開示の第３は、凹部の深さを、円筒部の肉厚の０．７倍程度以上としている。これによっても、突起部の高さを高くすることが可能となっている。 In a third aspect of the present disclosure, the depth of the recess is approximately 0.7 times or more the thickness of the cylindrical portion. This also makes it possible to increase the height of the protrusion.
本開示の第４は、突起部の隅部である突起隅部、及び凹部の隅部である凹隅部は曲面に形成されている。曲面とすることで鉄材料の流れ込みを促進している。これによって、鉄材料の充填率が低下して割れ等の強度不足が生じるのを、効果的に防いでいる。 A fourth aspect of the present disclosure is that the protrusion corner, which is the corner of the protrusion, and the concave corner, which is the corner of the recess, are formed into curved surfaces. The curved surface promotes the flow of iron material. This effectively prevents insufficient strength such as cracks due to a decrease in the filling rate of the iron material.
本開示の第５は、突起部の根元部の内、周方向では鉄材料のファイバーフローが連続しており、軸方向では鉄材料のファイバーフローが切断している。鉄材料のファイバーフローが連続する押し出し手法とすることで、鉄材料の流れを促し、突起部の高さを高くすることができている。また、鉄材料のファイバーフローが切断する切り出し手法とすることで、突起部をより正確な形状とすることができている。 A fifth aspect of the present disclosure is that in the root portion of the protrusion, the fiber flow of the iron material is continuous in the circumferential direction, and the fiber flow of the iron material is cut in the axial direction. By using an extrusion method in which the fiber flow of the iron material is continuous, it is possible to promote the flow of the iron material and increase the height of the protrusion. In addition, by using a cutting method in which the fiber flow of the iron material cuts the protrusion, it is possible to form the protrusion into a more accurate shape.
Claims (8)
前記円筒部の外周には、周方向に等間隔離れて複数の突起部が径方向外方に形成される突起形成部位が形成され、
前記突起部は前記円筒部の鉄材料で前記円筒部の外周に一体形成され、
前記突起部は周方向の両側と軸方向の両側に辺を有する長方形状であって軸方向長さが周方向長さより長い長方形状であり、
前記円筒部の内周には、前記突起部と対応する部位に複数の凹部が形成される凹部形成部位が形成され、
前記凹部は周方向の両側と軸方向の両側に辺を有する長方形状であって軸方向長さが周方向長さより長い長方形状であり、
前記突起部及び前記凹部は、前記円筒部の軸方向のほぼ中央となる位置に形成され、
前記突起部の軸方向中間位置と前記凹部の軸方向中間位置はほぼ一致し、前記突起部の軸方向長さと前記凹部の軸方向長さはほぼ一致して前記突起部の軸方向幅と前記凹部の軸方向幅をほぼ一致させて、前記突起部の形状を軸方向でガイドして前記突起部の周方向の形状を安定させて前記突起部の形状を規定し、
前記突起部の周方向中間位置と前記凹部の周方向中間位置はほぼ一致し、前記突起部の周方向長さに対し前記凹部の周方向長さは長く前記突起部の周方向幅に比べて前記凹部の周方向幅が幅広で、前記円筒部の鉄材料を周方向から前記突起部に集めて前記突起部の高さを高くし、
前記円筒部の内周に周方向に複数の永久磁石が配置されている回転電機用ロータ。 A rotor for a rotating electric machine having a disc-shaped bottom made of iron material and a cylindrical part disposed on the radial outer periphery of the bottom,
A protrusion forming portion is formed on the outer periphery of the cylindrical portion, in which a plurality of protrusions are formed radially outward at equal intervals in the circumferential direction,
The protrusion is integrally formed on the outer periphery of the cylindrical part using iron material of the cylindrical part,
The protrusion has a rectangular shape with sides on both sides in the circumferential direction and on both sides in the axial direction, and the length in the axial direction is longer than the length in the circumferential direction,
A recess formation region is formed on the inner periphery of the cylindrical portion, in which a plurality of recesses are formed in a region corresponding to the protrusion,
The recess has a rectangular shape having sides on both sides in the circumferential direction and both sides in the axial direction, and the length in the axial direction is longer than the length in the circumferential direction,
The protrusion and the recess are formed at approximately the center of the cylindrical portion in the axial direction,
The axial intermediate position of the protrusion and the axial intermediate position of the recess substantially match, and the axial length of the protrusion and the axial length of the recess substantially match , so that the axial width of the protrusion and the axial width of the recess substantially match. defining the shape of the protrusion by making the axial widths of the recesses almost the same and guiding the shape of the protrusion in the axial direction to stabilize the circumferential shape of the protrusion;
The circumferential intermediate position of the protrusion and the circumferential intermediate position of the recess substantially match, and the circumferential length of the recess is longer than the circumferential width of the protrusion. The circumferential width of the recess is wide, and the iron material of the cylindrical portion is collected from the circumferential direction onto the protrusion to increase the height of the protrusion ,
A rotor for a rotating electrical machine, in which a plurality of permanent magnets are arranged circumferentially on the inner periphery of the cylindrical portion.
前記円筒部の外周には、周方向に等間隔離れて複数の突起部が径方向外方に形成される突起形成部位が形成され、
前記突起部は軸方向長さが周方向長さより長い長方形状であり、
前記円筒部の内周には、前記突起部と対応する部位に複数の凹部が形成される凹部形成部位が形成され、
前記凹部は軸方向長さが周方向長さより長い長方形状であり、
前記突起部の軸方向中間位置と前記凹部の軸方向中間位置はほぼ一致し、前記突起部の軸方向長さと前記凹部の軸方向長さはほぼ一致し、
前記突起部の周方向中間位置と前記凹部の周方向中間位置はほぼ一致し、前記突起部の周方向長さに対し前記凹部の周方向長さは長く、
前記円筒部の内周に周方向に複数の永久磁石が配置されており、
前記突起部の根元部の内、周方向では鉄材料のファイバーフローが連続しており、軸方向では鉄材料のファイバーフローが切断している回転電機用ロータ。 A rotor for a rotating electric machine having a disc-shaped bottom made of iron material and a cylindrical part disposed on the radial outer periphery of the bottom,
A protrusion forming portion is formed on the outer periphery of the cylindrical portion, in which a plurality of protrusions are formed radially outward at equal intervals in the circumferential direction,
The protrusion has a rectangular shape with an axial length longer than a circumferential length,
A recess formation region is formed on the inner periphery of the cylindrical portion, in which a plurality of recesses are formed in a region corresponding to the protrusion,
The recess has a rectangular shape with an axial length longer than a circumferential length,
An axial intermediate position of the protrusion and an axial intermediate position of the recess substantially match, and an axial length of the protrusion and an axial length of the recess substantially match,
A circumferential intermediate position of the protrusion and a circumferential intermediate position of the recess substantially match, and the circumferential length of the recess is longer than the circumferential length of the protrusion.
A plurality of permanent magnets are arranged circumferentially on the inner periphery of the cylindrical part,
A rotor for a rotating electric machine, in which the fiber flow of the iron material is continuous in the circumferential direction in the root portion of the protrusion, and the fiber flow of the iron material is cut in the axial direction.
複数のティース部、及びこのティース部に配置される複数のコイルを備え、前記ティース部の径方向外方端部が前記永久磁石と対向しているステータと、
前記突起部の径方向外方に配置され、前記突起部の位置を検知する磁気検知装置とを備える回転電機。 A rotor for a rotating electric machine according to any one of claims 1 to 5,
A stator comprising a plurality of teeth and a plurality of coils disposed in the teeth, and a radially outer end of the teeth faces the permanent magnet;
A rotating electrical machine including: a magnetic detection device that is disposed radially outward of the protrusion and detects the position of the protrusion.
前記円形平板の外周部を軸方向に折り曲げ、前記中心部丸穴の中心軸を中心にする円盤状の底部と、この底部の径方向外周に配置される円筒部とを形成する円筒部折り曲げ工程と、
前記底部に前記ボス部の固定穴を形成する穴抜き工程と、
前記円筒部を内周側より外周側に打ち出して、前記円筒部の外周に周方向の両側と軸方向の両側に辺を有する長方形状であって軸方向長さが周方向長さより長い長方形状をした突起部を前記円筒部の軸方向のほぼ中央となる位置に形成するとともに、前記円筒部の内周に周方向の両側と軸方向の両側に辺を有する長方形状であって軸方向長さが周方向長さより長い長方形状をした凹部を前記円筒部の軸方向のほぼ中央となる位置に形成する外出し工程と、
前記円筒部の内周に、永久磁石を保持するように固定する永久磁石固定工程と、
前記中心部丸穴に前記ボス部を配置するとともに前記ボス部を前記底部に前記固定穴を利用して固定するボス部固定工程とを有し、
前記外出し工程は、前記円筒部の外周に長方形状のダイ凹部を有するダイを配置し、前記円筒部の内周に長方形状のパンチ凸部を有するパンチを配置して、前記パンチを前記ダイ側にプレスするとともに、前記パンチ凸部の周方向幅は前記ダイ凹部の周方向幅より大きく前記突起部の周方向幅に比べて前記凹部の周方向幅を幅広として、前記円筒部の鉄材料を周方向から前記突起部に集めて前記突起部の高さを高くする押し出し手法とし、前記パンチ凸部の軸方向幅は前記ダイ凹部の軸方向幅とほぼ一致して前記突起部の軸方向幅と前記凹部の軸方向幅をほぼ一致させて、前記突起部の形状を軸方向でガイドして前記突起部の周方向の形状を安定させて前記突起部の形状を規定する切り出し手法とし、かつ、前記突起部を前記円筒部に周方向に等間隔離れて複数形成する回転電機用ロータの製造方法。 A flat plate punching step of punching out a central round hole for supporting the boss part in the center from a flat plate made of iron material, and punching out a circular flat plate coaxially with the central round hole;
A cylindrical part bending step of bending the outer peripheral part of the circular flat plate in the axial direction to form a disc-shaped bottom part centered on the central axis of the central round hole and a cylindrical part arranged on the radial outer periphery of this bottom part. and,
a hole punching step of forming a fixing hole for the boss part in the bottom part;
The cylindrical part is punched out from the inner periphery side to the outer periphery side, and the outer periphery of the cylindrical part has a rectangular shape having sides on both sides in the circumferential direction and on both sides in the axial direction, and the axial length is longer than the circumferential length. A protrusion having a shape of a rectangular shape having sides on both sides in the circumferential direction and both sides in the axial direction is formed on the inner periphery of the cylindrical part, and has a length in the axial direction. a step of forming a rectangular recess with a length longer than the circumferential length at a position approximately at the center of the cylindrical portion in the axial direction ;
a permanent magnet fixing step of holding and fixing a permanent magnet to the inner circumference of the cylindrical part;
a boss part fixing step of arranging the boss part in the central round hole and fixing the boss part to the bottom part using the fixing hole;
In the taking out step, a die having a rectangular die recess is arranged on the outer periphery of the cylindrical part, a punch having a rectangular punch convex part is arranged on the inner periphery of the cylindrical part, and the punch is inserted into the die. While pressing the iron material of the cylindrical part to the side, the circumferential width of the punch protrusion is larger than the circumferential width of the die recess and the circumferential width of the recess is wider than the circumferential width of the protrusion. An extrusion method is used in which the height of the protrusion is increased by collecting the protrusion from the circumferential direction , and the axial width of the punch protrusion is approximately equal to the axial width of the die recess, and the axial width of the protrusion is A cutting method that defines the shape of the protrusion by making the width substantially match the axial width of the recess and guiding the shape of the protrusion in the axial direction to stabilize the circumferential shape of the protrusion, and a method for manufacturing a rotor for a rotating electric machine, wherein a plurality of the protrusions are formed on the cylindrical portion at equal intervals in the circumferential direction.
前記円形平板の外周部を軸方向に折り曲げ、前記中心部丸穴の中心軸を中心にする円盤状の底部と、この底部の径方向外周に配置される円筒部とを形成する円筒部折り曲げ工程と、
前記底部に前記ボス部の固定穴を形成する穴抜き工程と、
前記円筒部を内周側より外周側に打ち出して、前記円筒部の外周に軸方向長さが周方向長さより長い長方形状をした突起部を形成するとともに、前記円筒部の内周に軸方向長さが周方向長さより長い長方形状をした凹部を形成する外出し工程と、
前記円筒部の内周に、永久磁石を保持するように固定する永久磁石固定工程と、
前記中心部丸穴に前記ボス部を配置するとともに前記ボス部を前記底部に前記固定穴を利用して固定するボス部固定工程とを有し、
前記外出し工程は、前記円筒部の外周に長方形状のダイ凹部を有するダイを配置し、前記円筒部の内周に長方形状のパンチ凸部を有するパンチを配置し、前記突起部の根元部における鉄材料のファイバーフローを、周方向では維持し、軸方向では切断するように、前記パンチを前記ダイ側にプレスすることにより前記突起部および前記凹部を形成している回転電機用ロータの製造方法。 A flat plate punching step of punching out a central round hole for supporting the boss part in the center from a flat plate made of iron material, and punching out a circular flat plate coaxially with the central round hole;
A cylindrical part bending step of bending the outer peripheral part of the circular flat plate in the axial direction to form a disc-shaped bottom part centered on the central axis of the central round hole and a cylindrical part arranged on the radial outer periphery of this bottom part. and,
a hole punching step of forming a fixing hole for the boss part in the bottom part;
The cylindrical part is punched out from the inner periphery to the outer periphery to form a rectangular protrusion on the outer periphery of the cylindrical part, the axial length of which is longer than the circumferential length, and an axial protrusion on the inner periphery of the cylindrical part. a step of forming a rectangular recess whose length is longer than its circumferential length;
a permanent magnet fixing step of holding and fixing a permanent magnet to the inner circumference of the cylindrical part;
a boss part fixing step of arranging the boss part in the central round hole and fixing the boss part to the bottom part using the fixing hole;
In the taking out step, a die having a rectangular die recess is arranged on the outer periphery of the cylindrical part, a punch having a rectangular punch protrusion is arranged on the inner periphery of the cylindrical part, and the base of the protrusion is Manufacturing a rotor for a rotating electric machine, in which the protrusion and the recess are formed by pressing the punch against the die so that the fiber flow of the iron material is maintained in the circumferential direction and cut in the axial direction. Method.
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| JP2022050135 | 2022-03-25 | ||
| JP2022050135 | 2022-03-25 | ||
| PCT/JP2023/009501 WO2023182027A1 (en) | 2022-03-25 | 2023-03-13 | Rotary electric machine, rotor for rotary electric machine, and method for manufacturing rotor for rotary electric machine |
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| JPS5953680U (en) * | 1982-09-30 | 1984-04-09 | 国産電機株式会社 | Inductor type signal generator |
| JPH0829370B2 (en) * | 1990-02-01 | 1996-03-27 | 三菱電機株式会社 | Shearing method for plate materials |
| JP2622825B2 (en) * | 1995-02-13 | 1997-06-25 | 小川工業株式会社 | Shaft planting method |
| JP3264127B2 (en) | 1995-03-14 | 2002-03-11 | 松下電器産業株式会社 | Capacitor element winding device |
| JP4255938B2 (en) * | 2005-09-12 | 2009-04-22 | 三菱電機株式会社 | Magnet generator and method for manufacturing the same |
| JP2007215333A (en) * | 2006-02-10 | 2007-08-23 | Mitsuba Corp | Rotator and device for forming protrusion for detecting rotational signal in rotator |
| JP5953680B2 (en) | 2011-09-06 | 2016-07-20 | 株式会社リコー | Lens barrel and imaging device |
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