JPH0322852A - Manufacture of cage type rotor - Google Patents
Manufacture of cage type rotorInfo
- Publication number
- JPH0322852A JPH0322852A JP15740389A JP15740389A JPH0322852A JP H0322852 A JPH0322852 A JP H0322852A JP 15740389 A JP15740389 A JP 15740389A JP 15740389 A JP15740389 A JP 15740389A JP H0322852 A JPH0322852 A JP H0322852A
- Authority
- JP
- Japan
- Prior art keywords
- end ring
- rotor core
- conductive material
- conductor material
- temporary shaft
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000004020 conductor Substances 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 30
- 241000555745 Sciuridae Species 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 2
- 238000007711 solidification Methods 0.000 abstract description 13
- 230000008023 solidification Effects 0.000 abstract description 13
- 238000000465 moulding Methods 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 2
- 230000000063 preceeding effect Effects 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 238000004512 die casting Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Landscapes
- Manufacture Of Motors, Generators (AREA)
- Induction Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、かご形回転子の製造方法に係り、特に回転
子鉄心に溶融した導体材料を加圧充填し回転子導体を形
成する方法に関するものである．〔従来の技術〕
第４図ａ，ｂは一般的な鋳込前のかご形回転子鉄心を示
すもので、ａは一部を切欠いて断面を表す正面図、ｂは
その側面図である．図において、１は積層した回転子鉄
心であり、ｌａはそのスロット、ｌｂは回転軸挿入部、
ＩＣは円形状鋼板である．次に第５図は一般的な鋳込後
のかご形回転子を示すもので、図において、２は導体材
料、２ａ， ２ｂはエンドリング、２ｃ，２ｄはフィン
である．従来この回転子はスロットｌａと回転軸挿入部
１ｂを予め打抜いた円形状鋼板１ｃを必要枚数積層し、
アルミニウムダイカストにより第４図に示すような回転
子導体を形成した後、回転軸を挿入して製造される．
第６図ａは従来のかご形回転子の鋳造装置を示す断面図
で、図において、１は回転子鉄心であり、仮軸３に積層
されている．４は下金型、５は上金型で、それぞれにエ
ンドリング形成部４ａ，５ａ、フィン形成部４ｂ，５ｂ
を有する．６は移動テーブル、７はスリーブ、８はこの
スリーブ７に挿入された加圧１ランジャーで、湯溜り部
７ａを形成する．第６図ｂは下金型４の平面図で、エン
ドリング形成部４ａ、フィン形成部４ｂを示したもので
、フィン形成部４ｂは溶融導体材料充填の際のゲートで
もある．
次に動作について説明する．従来のダイカスト法は仮軸
３に積層された回転子鉄心１を下金型４に載せ、予め移
動テーブル６に取付けておいた上金型５を下降させ、回
転子鉄心１を加圧する．しかる後、スリーブ７の湯溜り
部７ａに予め注入されていた溶融導体が加圧プランジャ
ー８によって加圧され、フィン形成部４ｂからエンドリ
ング形成部４ａ、回転子鉄心１のスロットｌａの中を流
れ、スロットｌａ、エンドリング形成部４ａ．５ａ、フ
ィン形成部４ｂ，５ｂに高速で充填され、急速冷却され
た後、移動テーブル６、上金型５での加圧を解除し、型
を開いて回転子鉄心１を取り出す．
〔発明が解決しようとする課題〕
従来のダイカスト法では、フィン形成部をゲートにして
いるので、充填量に対してゲート部断面積が小さく、溶
融導体材料を加圧充填する過程で、？Ｗ融導体材料の温
度低下が進行し、ゲート部での凝固が先行するため、加
圧プランジャーの加圧力が上端エンドリング及びフィン
まで充分に伝わらなくなる．このため、溶融導体材料を
高圧、高速で充填する必要があり、その結果、充填の際
乱流が生じて、空気ガスを巻き込んで巣が発生したり、
加圧力低下による引け巣が発生し、電気導通の低下をき
たして、モーターのトルク、効率に悪影響を及ぼすとい
う問題点があった．
この発明は上記のような問題点を解消するためになされ
たもので、溶融導体材料を充填する際の部分的な先行凝
固を防止し、凝固完了まで充填加圧力が作用し、巣のな
い健全な電気導体が得られる回転子製造方法を得ること
を目的とする。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method of manufacturing a squirrel cage rotor, and more particularly to a method of pressurizing and filling a rotor core with molten conductor material to form a rotor conductor. It is something. [Prior Art] Figures 4a and 4b show a typical squirrel cage rotor core before casting, where a is a partially cutaway front view and b is a side view. In the figure, 1 is a laminated rotor core, la is its slot, lb is a rotating shaft insertion part,
IC is a circular steel plate. Next, Fig. 5 shows a general squirrel cage rotor after casting. In the figure, 2 is a conductive material, 2a and 2b are end rings, and 2c and 2d are fins. Conventionally, this rotor is made by laminating a required number of circular steel plates 1c with slots la and rotating shaft insertion portions 1b punched out in advance.
After forming the rotor conductor as shown in Fig. 4 by aluminum die-casting, the rotating shaft is inserted to manufacture the rotor. FIG. 6a is a sectional view showing a conventional squirrel cage rotor casting apparatus. In the figure, 1 is a rotor core, which is laminated on a temporary shaft 3. 4 is a lower mold, and 5 is an upper mold, each having end ring forming parts 4a, 5a and fin forming parts 4b, 5b.
has. 6 is a movable table, 7 is a sleeve, and 8 is a pressure plunger inserted into the sleeve 7, forming a water reservoir 7a. FIG. 6b is a plan view of the lower mold 4, showing the end ring forming part 4a and the fin forming part 4b.The fin forming part 4b also serves as a gate when filling the molten conductor material. Next, we will explain the operation. In the conventional die-casting method, the rotor core 1 stacked on a temporary shaft 3 is placed on a lower mold 4, and the upper mold 5, which has been attached in advance to a moving table 6, is lowered and the rotor core 1 is pressurized. Thereafter, the molten conductor previously injected into the reservoir 7a of the sleeve 7 is pressurized by the pressurizing plunger 8, and flows from the fin forming portion 4b to the end ring forming portion 4a and into the slot la of the rotor core 1. flow, slot la, end ring forming portion 4a. 5a, the fin forming portions 4b, 5b are filled at high speed and rapidly cooled, and then the pressure applied by the movable table 6 and the upper mold 5 is released, the mold is opened, and the rotor core 1 is taken out. [Problems to be Solved by the Invention] In the conventional die-casting method, the fin forming part is used as a gate, so the cross-sectional area of the gate part is small compared to the filling amount. As the temperature of the W fusion conductor material decreases and solidification occurs first at the gate, the pressing force of the pressurizing plunger is not sufficiently transmitted to the upper end ring and fins. For this reason, it is necessary to fill the molten conductor material at high pressure and high speed, which results in turbulent flow during filling, which entrains air gas and creates cavities.
There was a problem in that shrinkage cavities occurred due to the reduction in pressurizing force, resulting in a decrease in electrical continuity, which had a negative impact on the motor's torque and efficiency. This invention was made in order to solve the above-mentioned problems.It prevents partial advance solidification when filling the molten conductor material, and the filling pressure acts until the solidification is completed, resulting in a sound and void-free product. The purpose of the present invention is to obtain a method for manufacturing a rotor that yields a suitable electrical conductor.
この発明に係るかご形回転子の製造方法は、下端フィン
の形成をプランジャーチップで行い、下端エンドリング
の形成は下金型と仮軸によって行うようにしたものであ
る．
請求項２の発明に係るかご形回転子の製造方法は、ゲー
トを下金型と仮軸によってｉｔして、ゲート断面積を大
きくし、ゲート部での先行凝固を防止するようにしたも
のである．
〔作用〕
この発明における下端エンドリング、下端フィンの形成
は、下金型、仮軸、プランジャーチップの組合せにより
行われる．
請求項２の発明におけるゲートは、下金型と回転子鉄心
を積層した仮軸を組み合わせることでエンドリング内側
面に形成され、ゲート部における先行凝固を起こすこと
なく、加圧プランジャーによる加圧力を最終凝固まで保
持する．
〔実施例〕
以下この発明の一実施例を図について説明する．第ｌ図
ａは充填完了の状態を示した断面図、第１図ｂは充填前
の状態を示した断面図である．図において、１は仮軸３
に積層され、締付ナット３ａによって固定された回転子
鉄心、２は導体材料、４は下金型で、仮軸３との間にエ
ンドリング形成部４ａを形成する．５は上金型で、エン
ドリング形成部５ａ、フィン形成部５ｂを有する．６は
移動テープル、７はスリーブ、８は加圧プランジャー、
９は第２図に示す如く上端周囲にフィン形成部９ａを有
ずるプランジャーチップで、スリーブ７に挿入されて湯
溜り１０を形成する．
次に動作について説明する．まず仮軸３に回転子鉄心１
を必要枚数積層し、締付ナット３ａにより締付けておく
．次いで、スリーブ７と、該スリーブ７に挿入されたプ
ランジャーチツプ９により形成された湯溜り１０に溶融
導体材料を注ぎ込む．なお溶融導体を注ぎ込む量は、充
填後の収縮率を考慮して決定する．次いで、下金型４を
所定の位置に置き、仮軸３に積層しておいた回転子鉄心
１を載せ、予め移動テーブル６に取付けておいた上金型
５を下降させて回転子鉄心１を加圧する．この状態で加
圧プランジャー８を上昇させると、スリーブ７に挿入さ
れているプランジャーチツプ９も上昇し、湯溜り部ＩＯ
の溶融導体材料はスロットｌａを通り、上端エンドリン
グ形成部５ａ、フィン形成部５ｂに到達する．プランジ
ャーチツブ９の上昇は仮軸３の下端に突き当たって終了
し，４この時点で下端エンドリング形成部４ａ、下部フ
ィン形成部９ａが形成される．なお溶融導体材料を充填
するときの流速は、過度にガスや空気を巻き込むことの
ないように高圧、低速にするのがよい．この時、低速充
填であっても、溶融導体材料の流量を規制するゲートが
ないので、充填された溶融導体材料の最終凝固まで加圧
プランジャー８の加圧力を保持することで、引け巣の発
生がなく、充填時の空気、ガスの巻き込みによる巣の発
生も防止できる。In the method for manufacturing a squirrel cage rotor according to the present invention, the lower end fins are formed using a plunger tip, and the lower end ring is formed using a lower mold and a temporary shaft. The method for manufacturing a squirrel cage rotor according to the invention of claim 2 is such that the gate is formed using a lower mold and a temporary shaft to increase the cross-sectional area of the gate and prevent advance solidification at the gate portion. be. [Operation] The lower end ring and lower end fin in this invention are formed by a combination of a lower mold, a temporary shaft, and a plunger tip. The gate in the invention of claim 2 is formed on the inner surface of the end ring by combining a lower mold and a temporary shaft made of laminated rotor cores, and the gate is formed on the inner surface of the end ring by the pressurizing force of the pressurizing plunger without causing preliminary solidification at the gate part. is maintained until final solidification. [Example] An example of the present invention will be explained below with reference to the drawings. Fig. 1a is a sectional view showing the state after filling, and Fig. 1b is a sectional view showing the state before filling. In the figure, 1 is the temporary axis 3
The rotor core is laminated on the rotor core and fixed by a tightening nut 3a, 2 is a conductor material, 4 is a lower mold, and an end ring forming part 4a is formed between the temporary shaft 3 and the rotor core. 5 is an upper mold having an end ring forming part 5a and a fin forming part 5b. 6 is a moving table, 7 is a sleeve, 8 is a pressurizing plunger,
A plunger tip 9 has a fin-forming portion 9a around its upper end as shown in FIG. 2, and is inserted into the sleeve 7 to form a pool 10. Next, we will explain the operation. First, rotor core 1 is attached to temporary shaft 3.
Stack the required number of sheets and tighten with the tightening nut 3a. Next, molten conductive material is poured into the trough 10 formed by the sleeve 7 and the plunger tip 9 inserted into the sleeve 7. The amount of molten conductor to be poured is determined by considering the shrinkage rate after filling. Next, the lower mold 4 is placed in a predetermined position, the laminated rotor core 1 is placed on the temporary shaft 3, and the upper mold 5, which has been attached to the moving table 6 in advance, is lowered to remove the rotor core 1. Pressurize. When the pressurizing plunger 8 is raised in this state, the plunger tip 9 inserted into the sleeve 7 is also raised, and the water reservoir IO
The molten conductor material passes through the slots la and reaches the upper end ring forming portion 5a and the fin forming portion 5b. The rise of the plunger tip 9 ends when it hits the lower end of the temporary shaft 3, and at this point the lower end ring forming part 4a and the lower fin forming part 9a are formed. The flow rate when filling the molten conductor material should be high pressure and low speed to avoid excessive gas or air being drawn in. At this time, even in low-speed filling, since there is no gate to regulate the flow rate of the molten conductor material, the pressing force of the pressurizing plunger 8 is maintained until the final solidification of the filled molten conductor material to prevent shrinkage cavities. This prevents the formation of cavities due to the entrainment of air and gas during filling.
次に第３図は請求項２に係るこの発明の実施例を示すも
ので、ａは断面図、ｂはａに示した下金型の平面図、Ｃ
はゲート切断前の断面図、ｄはゲート切断後の断面図で
ある．図において、１は仮軸３に積層された回転子鉄心
、２は導体材料、４は下金型で、エンドリング形成部４
ａ、フィン形成部４ｂ、仮軸支え部４ｄを有し、かつ仮
軸３を挿着することによりゲート部４Ｃを形成するよう
になされている．５は上金型で、エンドリング形成部５
ａ、フィン形成部５ｂを有する．６はこの上金型５を取
付ける移動テーブル、７はスリーブ、８はスリーブ７に
挿入され、湯溜り部７ａを形成する加圧プランジャーで
ある．
次に動作について説明する．まず仮軸３に回転子鉄心１
を必要枚数積層しておく．次いでスリー・ブ７の湯溜り
部７ａに溶融した導体材料を所定量注いだ後、下金型４
を所定の位置に置き、仮軸３に積層しておいた回転子鉄
心１を載せる．これによって導体材料２を充填するゲー
ト４Ｃが形成される，，次に予め移動テーブル６に取付
けておいた上金型５を下降させて回転子鉄心１を加圧す
る．この状態で加圧プランジャー８を上昇させると、溶
融した導体材料はゲート４Ｃを通り下端エンドリング形
成部４ａ、下端フィン形成部４ｂからスロット！ａを通
し上部エンドリング形成部５ｂ、上部フィン形成部５ｂ
に到達する．なおこのとき溶融導体材料の流速は過度に
ガスや空気を巻き込むことのないように高圧、低速にす
るのがよい．この時、低速充填であってもゲート部はエ
ンドリング内面からの比較的大きなゲートにすることが
できるので、ゲート部での先行凝固を起こすことはなく
、加圧プランジャー８による加圧力を、充填された溶融
導体材料の最゛終凝固まで保持することで、引け巣の発
生がなく、充填時のガス、空気の巻き込みによる巣の発
生も防止できる．充填が完了すると、移動テーブル６に
よる加圧を解除し、型を開いて下金型４から回転子１を
取り出す．次いで、第１図Ｃに示すように回転子１を回
転子受け台８に載せ、仮軸３を突き出し、ロッド９で加
圧することで、仮軸３は下方へ下降し、ゲートを切断し
てビスヶ・１ト２ｅを分離する．第１図ｄに切断を完了
した状態を示す。Next, FIG. 3 shows an embodiment of the invention according to claim 2, in which a is a sectional view, b is a plan view of the lower mold shown in a, and C is a plan view of the lower mold shown in A.
is a cross-sectional view before cutting the gate, and d is a cross-sectional view after cutting the gate. In the figure, 1 is the rotor core laminated on the temporary shaft 3, 2 is the conductor material, 4 is the lower mold, and the end ring forming part 4
It has a fin forming part 4b, a temporary shaft support part 4d, and a gate part 4C is formed by inserting the temporary shaft 3. 5 is the upper mold, and the end ring forming part 5
a, has a fin forming portion 5b. Reference numeral 6 designates a movable table on which the upper mold 5 is attached, 7 a sleeve, and 8 a pressurizing plunger inserted into the sleeve 7 to form a pool 7a. Next, we will explain the operation. First, rotor core 1 is attached to temporary shaft 3.
Stack the required number of sheets. Next, after pouring a predetermined amount of molten conductive material into the pool 7a of the sleeve 7, the lower mold 4
is placed in a predetermined position, and the laminated rotor core 1 is placed on the temporary shaft 3. As a result, a gate 4C filled with the conductor material 2 is formed. Next, the upper mold 5, which has been attached to the moving table 6 in advance, is lowered to pressurize the rotor core 1. When the pressurizing plunger 8 is raised in this state, the molten conductive material passes through the gate 4C and from the lower end ring forming part 4a and the lower end fin forming part 4b to the slot! a through the upper end ring forming part 5b and the upper fin forming part 5b.
Reach. At this time, the flow rate of the molten conductor material should be high pressure and low speed to avoid excessive gas or air being drawn in. At this time, even in low-speed filling, the gate part can be a relatively large gate from the inner surface of the end ring, so there is no advance solidification at the gate part, and the pressurizing force by the pressurizing plunger 8 is reduced. By holding the filled molten conductor material until final solidification, shrinkage cavities do not occur, and cavities due to gas and air entrainment during filling can also be prevented. When the filling is completed, the pressure applied by the moving table 6 is released, the mold is opened, and the rotor 1 is taken out from the lower mold 4. Next, as shown in FIG. 1C, the rotor 1 is placed on the rotor holder 8, the temporary shaft 3 is pushed out, and pressure is applied with the rod 9, so that the temporary shaft 3 descends downward, cutting the gate. Separate the screws 1 and 2e. Figure 1d shows the state in which the cutting has been completed.
以上のようにこの発明によれば、溶融導体材料を充填す
る際、下金型のゲートをなくすように横戒したので、溶
融導体材料の充填を高圧、低速で行うことができ、溶融
導体材料の最終凝固まで加圧プランジャーの加圧力を保
持できるので、引け巣やガス、空気の巻き込みによる巣
がない健全な電気導体が得られ、モーターの効率及びト
ルク特性の向上をもたらす効果がある．
次に請求項２に係る発明によれば、溶融導体材料を充填
する際、溶融導体材料がゲート部を通過する時も部分的
な先行凝固が生じることなく低速で充填することができ
、なおかつ溶融導体材料の最終凝固まで加圧ブランジャ
ーの加圧力を保持するとができるようにしたので、巣の
ない健全な電気導体が得られ、モーターの効率及びトル
ク特性の向上をもたらず効果がある．As described above, according to the present invention, when filling the molten conductor material, the gate of the lower mold is avoided, so the molten conductor material can be filled at high pressure and at low speed, and the molten conductor material can be filled with the molten conductor material. Since the pressurizing force of the pressurizing plunger can be maintained until the final solidification of the product, a sound electrical conductor with no shrinkage cavities or cavities due to entrainment of gas or air can be obtained, which has the effect of improving the efficiency and torque characteristics of the motor. Next, according to the invention according to claim 2, when filling the molten conductor material, even when the molten conductor material passes through the gate part, it can be filled at a low speed without causing partial preliminary solidification, and the molten conductor material Since the pressure of the pressure plunger can be maintained until the final solidification of the conductor material, a sound electrical conductor without cavities can be obtained, which is effective without improving the efficiency and torque characteristics of the motor.
第１図ａ，ｂはこの発明の一実施例を示す断面図、第２
図はそのプランジャーチップのみを示す斜視図、第３図
ａ４よ謂求項２に係る発明の一実施例による鋳造金型０
使用状況を示す断面図、ｂは下金型の平面図、Ｃは鋳込
終了後ゲート切断前の断面図、ｄはゲート切断後の断面
図である。第４図ａ，ｂは一般的な回転子鉄心を示す一
部断面の正面図と側面図、第５図は一般的な紡込終了後
の四転子を示す断面図、第６図ａ，ｂは従来の鋳造金型
の使用状況を示す断面図と下金型の平面図である．
図中、１は回転子鉄心、１ｄはスロット、２は導体材料
、３は仮軸、４は下金型、４ａは下端エンドリング形成
部、８は加圧ブランジャー、９は加圧プランジャーチッ
プ、９ａ，４ｂは下端フィン形成部４ｃはゲート形成部
である。Figures 1a and b are cross-sectional views showing one embodiment of the present invention;
The figure is a perspective view showing only the plunger tip, and FIG. 3 a4 shows a casting mold 0 according to an embodiment of the invention according to claim 2.
A sectional view showing usage conditions, b is a plan view of the lower mold, C is a sectional view after casting is completed and before the gate is cut, and d is a sectional view after the gate is cut. Figures 4a and 4b are a front view and side view of a partial cross section showing a general rotor core, Figure 5 is a sectional view showing a general four-trochanter after spinning, and Figures 6a, b is a cross-sectional view showing the usage of a conventional casting mold and a plan view of the lower mold. In the figure, 1 is a rotor core, 1d is a slot, 2 is a conductor material, 3 is a temporary shaft, 4 is a lower mold, 4a is a lower end ring forming part, 8 is a pressure plunger, 9 is a pressure plunger In the chips 9a and 4b, the lower end fin forming portion 4c is a gate forming portion.
Claims (2)
するスロットを有する回転子鉄心と、上記スロット内に
充填される導体材料と、上記回転子鉄心の両端面に形成
され、上記導体材料に接続されるエンドリングと、この
エンドリングの端面に形成され、該エンドリングと共に
上記導体材料に接続されるフィンを備えたかご形回転子
の製造方法において、溶融導体材料を加圧充填して上記
エンドリング、フィン、スロット内の導体材料を形成す
る過程において、上記回転子鉄心に挿入される仮軸の下
端に下端エンドリングの形成部を設け、かつスリーブに
挿入される加圧用プランジャーチップの上端に、下端フ
ィンの形成部を設けて、これら仮軸と加圧プランジャー
チップによつて下端エンドリング及び下端フィンを形成
するようにしたことを特徴とするかご形回転子の製造方
法。(1) A rotor core formed by laminating circular steel plates and having slots penetrating in the lamination direction, a conductor material filled in the slots, and a conductor material formed on both end faces of the rotor core, A method for manufacturing a squirrel cage rotor comprising an end ring connected to a material, and fins formed on the end face of the end ring and connected to the conductive material together with the end ring, the method comprising pressurizing and filling a molten conductive material. In the process of forming the conductor material in the end rings, fins, and slots, a lower end ring forming portion is provided at the lower end of the temporary shaft inserted into the rotor core, and a pressurizing plunger is inserted into the sleeve. A method for manufacturing a squirrel cage rotor, characterized in that a lower end fin forming portion is provided at the upper end of the chip, and a lower end ring and a lower end fin are formed by the temporary shaft and the pressurized plunger chip. .
するスロットを有する回転子鉄心と、上記スロット内に
充填される導体材料と、上記回転子鉄心の両端面に形成
され、上記導体材料に接続されるエンドリングと、この
エンドリングの端面に形成され、該エンドリングと共に
上記導体材料に接続されるフィンを備えたかご形回転子
の製造方法において、上記回転子鉄心に挿入された仮軸
と、上記下端エンドリングを形成する下金型とによって
、上記下端エンドリング形成部に直接通ずるゲート部を
形成し、充填終了後、上記仮軸に加圧することにより上
記ゲート部を切断するようにしたことを特徴とするかご
形回転子の製造方法。(2) A rotor core formed by laminating circular steel plates and having slots penetrating in the lamination direction, a conductor material filled in the slots, and a conductor material formed on both end surfaces of the rotor core, In a method for manufacturing a squirrel cage rotor comprising an end ring connected to a material, and a fin formed on an end face of the end ring and connected to the conductive material together with the end ring, the method is inserted into the rotor core. A gate portion that directly communicates with the lower end ring forming portion is formed by the temporary shaft and the lower mold forming the lower end ring, and after filling is completed, the gate portion is cut by applying pressure to the temporary shaft. A method for manufacturing a squirrel cage rotor, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1157403A JPH0750977B2 (en) | 1989-06-19 | 1989-06-19 | Manufacturing method of cage rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1157403A JPH0750977B2 (en) | 1989-06-19 | 1989-06-19 | Manufacturing method of cage rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0322852A true JPH0322852A (en) | 1991-01-31 |
| JPH0750977B2 JPH0750977B2 (en) | 1995-05-31 |
Family
ID=15648872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1157403A Expired - Lifetime JPH0750977B2 (en) | 1989-06-19 | 1989-06-19 | Manufacturing method of cage rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0750977B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702063A (en) * | 2013-12-04 | 2015-06-10 | 株式会社电装 | Method for manufacturing rotor |
| CN114825833A (en) * | 2022-06-29 | 2022-07-29 | 常州市常华电机有限公司 | Rotor assembly of single-phase capacitor motor, processing equipment and processing method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63194566U (en) * | 1987-06-01 | 1988-12-14 |
-
1989
- 1989-06-19 JP JP1157403A patent/JPH0750977B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63194566U (en) * | 1987-06-01 | 1988-12-14 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9421609B2 (en) | 2013-04-12 | 2016-08-23 | Denso Corporation | Method for manufacturing rotor |
| CN104702063A (en) * | 2013-12-04 | 2015-06-10 | 株式会社电装 | Method for manufacturing rotor |
| JP2015109744A (en) * | 2013-12-04 | 2015-06-11 | 株式会社デンソー | Manufacturing method of rotor |
| CN104702063B (en) * | 2013-12-04 | 2018-05-22 | 株式会社电装 | For manufacturing the method for rotor |
| CN114825833A (en) * | 2022-06-29 | 2022-07-29 | 常州市常华电机有限公司 | Rotor assembly of single-phase capacitor motor, processing equipment and processing method thereof |
| CN114825833B (en) * | 2022-06-29 | 2022-09-02 | 常州市常华电机有限公司 | Rotor assembly of single-phase capacitor motor, processing equipment and processing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0750977B2 (en) | 1995-05-31 |
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