JPS62189949A - Processing method for rotary shaft for rotary electric machine - Google Patents
Processing method for rotary shaft for rotary electric machineInfo
- Publication number
- JPS62189949A JPS62189949A JP2934686A JP2934686A JPS62189949A JP S62189949 A JPS62189949 A JP S62189949A JP 2934686 A JP2934686 A JP 2934686A JP 2934686 A JP2934686 A JP 2934686A JP S62189949 A JPS62189949 A JP S62189949A
- Authority
- JP
- Japan
- Prior art keywords
- rotating shaft
- press
- forming
- cross
- forming surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003672 processing method Methods 0.000 title description 3
- 238000000465 moulding Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 206010027175 memory impairment Diseases 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は回転篭機の回転子を構成する回転軸に鉄心や整
流子、油切りなどの取付部品を圧入支持させる突条部を
プレスにより形成する加工方法に関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method of forming, by pressing, a protrusion on which attachment parts such as an iron core, a commutator, and an oil drainer are press-fitted and supported on a rotating shaft constituting a rotor of a rotary cage machine. This relates to a processing method.
一般に直流モーターや直流発電機などの回転電機の回転
子は第５図に示すように、回転軸／の外周に、鉄心２や
整流子３および油切、？４、シを１入して一体に嵌合さ
せた構造となっている。Generally, the rotor of a rotating electric machine such as a DC motor or a DC generator has an iron core 2, a commutator 3, an oil cutter, etc. on the outer periphery of the rotating shaft, as shown in Figure 5. 4. It has a structure in which one piece is inserted and fitted together.
これら取付部品を回転軸／に圧入して支持する構造は、
第６図に示すように、回転軸／の外周にその長手方向に
沿って泡数本の断面くさび状をなす突条部左・・・を形
成し、回転軸／の外形よりやや大きい内径に形成した整
流子３など取付部品をクリアランス６を設けて突条部５
・・・の部分を食い込ませて嵌合させである。The structure that supports these mounting parts by press-fitting them into the rotating shaft is as follows:
As shown in Figure 6, a wedge-shaped cross section of several bubbles is formed on the outer periphery of the rotating shaft along its longitudinal direction, and the inner diameter is slightly larger than the outer diameter of the rotating shaft. The formed commutator 3 and other mounting parts are attached to the protrusion 5 with a clearance 6 provided.
. . . and fit it together by biting into it.
この断面くさび状の突条部５が設けられていると、先端
が部分的に取付部品の内周面に食い込んで、これに案内
されながら圧入されるため、箔ずれかなく精度良く嵌合
できると共に、圧入抵抗が少なく、しかも強固な保持力
が得られるからである。If this protrusion 5 with a wedge-shaped cross section is provided, the tip partially bites into the inner circumferential surface of the attachment part and is press-fitted while being guided by this, so that the fitting can be performed with high accuracy without slipping of the foil. At the same time, there is little press-fitting resistance and a strong holding force can be obtained.
このような突条部Ｓの成型方法としては、従米菓７図（
２）に示すように、断面口字形をなす２個の金型７．７
を、凹部ｇ、Ｓが対向するように配置し、この間に回転
軸／をセットする。次に金型７．７で上下から加圧して
プレス成型し、第７図β）に示すように、金型７．７と
当る部分を局部的に塑性変形させて、第６図に示すよう
に、回転軸／の表面長手方向に沿って高さが等しい４本
の突条部左・・・を成型するものである。As a method of forming such a protrusion S, there is a method shown in Fig. 7 of Jubeika (Fig. 7).
As shown in 2), two molds 7.7 each have a cross-sectional shape.
are arranged so that the recesses g and S face each other, and the rotating shaft / is set between them. Next, press molding is performed by applying pressure from above and below with the mold 7.7, and as shown in Fig. 7 β), the part that contacts the mold 7.7 is locally plastically deformed, and as shown in Fig. 6. On the left side, four protrusions having equal heights are formed along the longitudinal direction of the surface of the rotating shaft.
との突条部Ｓによる取付部品の保持力は、部品の材質等
によってその必要とする力が異なシ、例えば打抜き鋼板
を積層した鉄心コは遠心力も大きくなるため大きな保持
力が必要となるが、樹脂モールド成型された整流子３は
突条部Ｓが高いと、破壊してしまうことがある。このた
め、取付部品に応じた適切な保持力を持たせるためには
、突条部３の高さを、取付部品の取付規定幅に合せて変
えなければならない。The required force for holding the attached part by the protruding part S differs depending on the material of the part, for example, an iron core made of laminated punched steel plates requires a large holding force because the centrifugal force is large. If the protrusion S of the commutator 3 formed by resin molding is high, it may break. Therefore, in order to provide an appropriate holding force depending on the part to be attached, the height of the protrusion 3 must be changed in accordance with the specified mounting width of the part to be attached.
しかしながら、第７図（２）および同図（［３１に示す
従来の加工方法では、回転軸／の長手方向に沿って同じ
高さの突条部５が同時にプレス成型されるため、従来に
最も大きな保持力を必要とする取付部品に合せて高い突
条部Ｓを形成し、モールド成型された整流子３の取付部
分Ａは、第８図に示すようにグラインダーで先端を研磨
して突条部５の高さを低くしてから組立てる。However, in the conventional processing method shown in FIG. 7(2) and FIG. The mounting part A of the molded commutator 3 is formed with a high protrusion S to match the attachment part that requires a large holding force, and the tip is polished with a grinder to form the protrusion as shown in FIG. Assemble after lowering the height of part 5.
このため、グラインダー研磨に手間がかかる上、突条部
５の断面形状も第９図に示すように台形状となってしま
うため、食い込みが少なく、接触面積も広くなるので、
忘ずれや正大抵抗の増大を招く欠点があった。For this reason, grinding with a grinder is time-consuming and the cross-sectional shape of the protrusion 5 becomes trapezoidal as shown in FIG.
This had the disadvantage of causing forgetfulness and increased positive resistance.
本発明は、上記従来方法の欠点を改善して、一度のプレ
ス成型により、長手方向に沿って高さの異なる断面くさ
び状の突条部を同時に形成して、グラインダー研磨を省
き、取付部品のＩｌｊ’ずれや正大抵抗の増大を防止し
て、各取付部品に対応した適切な保持力を得ることがで
きる回転１！機の回転軸加工方法を提供することを目的
とするものである。The present invention improves the drawbacks of the conventional method and simultaneously forms wedge-shaped protrusions with different heights in the longitudinal direction through a single press molding process, thereby eliminating the need for grinding and polishing the mounting parts. Rotation 1 that can prevent Ilj' displacement and increase in positive resistance and obtain the appropriate holding force for each attached part! The purpose of this invention is to provide a method for machining the rotating shaft of a machine.
本発明は、断面口字形をなす２個の金型な対向して配置
し、この間に回転軸をセットしてプレス成型し、鉄心、
整流子および油切りなどの取付部品を圧入支持させる突
条部を、回転軸の長手方向に沿って複数本形成する回転
電機の回転軸加工方法において、前記金型の成型面に、
取付部品の規定位置に対応して長手方向に沿った段差を
形成し、取付部品に適応した高さの異なる突条部を、回
転軸の表面に、一度のプレス加工で同時に成型すること
を特徴とするものである。In the present invention, two molds having a cross-sectional shape are placed facing each other, a rotating shaft is set between them, and press molding is performed.
In a method for machining a rotating shaft of a rotating electric machine, in which a plurality of protrusions for press-fitting and supporting attachment parts such as a commutator and an oil drainer are formed along the longitudinal direction of the rotating shaft, on the molding surface of the mold,
The feature is that a step is formed along the longitudinal direction corresponding to the specified position of the mounting part, and protrusions with different heights adapted to the mounting part are simultaneously formed on the surface of the rotating shaft in one press process. That is.
以下、本発明を図面を参照して評細に説明する。 Hereinafter, the present invention will be explained in detail with reference to the drawings.
先ず、第１図および第２図に示すように、金型７は断面
口字形をなし、整流子３と、片側の油切シタとの取付部
ｔＡの成型面９Ａと、鉄心λおよび他方側の油切ｐ＋の
取付部＆Ｂの成型面９Ｂとの間に段差Ｇを形成しである
。なお。First, as shown in FIGS. 1 and 2, the mold 7 has a cross-sectional shape, and the molding surface 9A of the attachment part tA of the commutator 3 and the oil cutter on one side, the iron core λ and the other side. A step G is formed between the mounting part &B of the oil cutter p+ and the molded surface 9B. In addition.
成型面９Ｂとの間には逃げを設けて突条部が成型されな
いようになっているか、連枕した段差を形成しても良い
。A relief may be provided between the molding surface 9B to prevent the protrusion from being molded, or a series of steps may be formed.
この金型７．７を用い、第１図に示すように四部ｇ、Ｓ
を対向させて配ｌｉｔ Ｌ、この間に九梓状の回転軸／
をセットする。次に金型７．７で上下から加圧してプレ
ス成型すると、第３図および第４図に示すように、成型
面９Ａで成型された突条部、Ｉ−Ａは高さが低く、加圧
力が大きく加わる成型面７Ｂで成型された突条部３Ｂは
大きく塑性変形して旨く成型され、しかも両突条都、ｔ
Ａ、、ｌ−Ｂとも先端の尖った萌向くをび状に同時に成
型することかできる。Using this mold 7.7, as shown in FIG.
are arranged opposite to each other, and between them a nine azusa-shaped rotating shaft/
Set. Next, press molding is performed by applying pressure from above and below with the mold 7.7, and as shown in FIGS. The protrusions 3B molded on the molding surface 7B to which a large amount of pressure is applied undergo large plastic deformation and are successfully molded.
Both A, l and B can be molded simultaneously into an elongated shape with a pointed tip.
この場合、成型面９Ａ、９Ｂの段差を０．０５ｍｍとす
ると、回転軸／の表面に形成された突条部外径は０．１
ｍｍの走となり、これが保持力の差となって取付部品
に対応した最適の保持力を得ることができる。In this case, if the step between the molding surfaces 9A and 9B is 0.05 mm, the outer diameter of the protrusion formed on the surface of the rotating shaft is 0.1 mm.
This becomes the difference in holding force, and it is possible to obtain the optimum holding force corresponding to the attached part.
〔発明の効果〕
以上説明した如く、本発明方法によれば、一度のプレス
成型によシ、長手方向に沿った規定位ｈｔ、に＝さの異
なる断面くさび状の突条部を同時に形成して、従来のグ
ラインダー研磨（時による市場調整を省いて、取付は部
品の芯ずれや正大抵抗の増大を防止し、各取付部品に対
応した適切な保持力を得ることができるものである。[Effects of the Invention] As explained above, according to the method of the present invention, wedge-shaped protrusions with different cross-sections can be simultaneously formed at predetermined positions along the longitudinal direction by one press molding. This eliminates the need for conventional grinder polishing (time-to-time market adjustment), prevents misalignment of parts and increases in positive resistance, and allows for the appropriate holding force to be obtained for each installed part.
第１図は突条部を金型で成型している状態を示す正面図
、第２図は第１図の側面図、第３図は突条部を成型した
回転軸の正面図、第４図は第３図の側面図、第５図は回
転７わ：機の上部を破断して示す側面図、第６図は第５
図の整流子取付部を破〜「して示す正面図、第７図（３
）および［Ｆ］）は従来方法により突条部を金型で成型
している状態を示す正面図、第８図はグラインダー研磨
した突条部を拡大して示す側面図、第９図は第８図のＩ
−Ｉ線断面図である。
／・・・回転軸 Ω・・・鉄 心３・・・整流
子 グ・・・油切ｐ５、 左Ａ、＆Ｂ・・・突
条部 ７・・・金 型ｇ・・・四 部 ９Ａ％９
Ｂ・・・成型面第８図
第９図Figure 1 is a front view showing the state in which the protrusion is molded with a mold, Figure 2 is a side view of Figure 1, Figure 3 is a front view of the rotating shaft with the protrusion molded, and Figure 4 is a front view of the rotating shaft with the protrusion molded. The figure is a side view of figure 3, figure 5 is a side view with the upper part of the machine cut away, and figure 6 is a side view of figure 5.
Figure 7 (3) is a front view with the commutator mounting part shown in
) and [F]) are front views showing the state in which the protrusions are molded with a mold by the conventional method, FIG. 8 is a side view showing an enlarged view of the protrusions polished with a grinder, and FIG. I in figure 8
-I line sectional view. /...Rotating shaft Ω...Iron core 3...Commutator G...Oil cutter p5, left A, &B...Protrusion portion 7...Mold g...4 parts 9A% 9
B...Molding surface Fig. 8 Fig. 9
Claims (1)
に回転軸をセットしてプレス成型し、鉄心、整流子およ
び油切りなどの取付部品を圧入支持させる突条部を、回
転軸の長手方向に沿つて複数本形成する回転電機の回転
軸加工方法において、前記金型の成型面に、取付部品の
規定位置に対応して長手方向に沿つた段差を形成し、取
付部品に適応した高さの異なる突条部を回転軸の表面に
、一度のプレス加工で同時に成型することを特徴とする
回転電機の回転軸加工方法。Two molds with a U-shaped cross section are placed facing each other, a rotating shaft is set between them, and press molding is performed.The protrusions for press-fitting and supporting attachment parts such as the iron core, commutator, and oil drainer are rotated. In a method of machining a rotating shaft of a rotating electric machine in which a plurality of shafts are formed along the longitudinal direction of the shaft, a step is formed along the longitudinal direction on the molding surface of the mold in correspondence with the prescribed position of the mounting part, and the mounting part is A method for machining a rotating shaft of a rotating electric machine, characterized in that ridges of different heights are simultaneously formed on the surface of the rotating shaft in one press process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2934686A JPS62189949A (en) | 1986-02-13 | 1986-02-13 | Processing method for rotary shaft for rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2934686A JPS62189949A (en) | 1986-02-13 | 1986-02-13 | Processing method for rotary shaft for rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62189949A true JPS62189949A (en) | 1987-08-19 |
Family
ID=12273664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2934686A Pending JPS62189949A (en) | 1986-02-13 | 1986-02-13 | Processing method for rotary shaft for rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62189949A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5698349A (en) * | 1980-01-07 | 1981-08-07 | Hitachi Ltd | Rotor of rotary electric machine and manufacture thereof |
-
1986
- 1986-02-13 JP JP2934686A patent/JPS62189949A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5698349A (en) * | 1980-01-07 | 1981-08-07 | Hitachi Ltd | Rotor of rotary electric machine and manufacture thereof |
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