JP2001207977A - Method for manufacturing scroll - Google Patents
Method for manufacturing scrollInfo
- Publication number
- JP2001207977A JP2001207977A JP2000012089A JP2000012089A JP2001207977A JP 2001207977 A JP2001207977 A JP 2001207977A JP 2000012089 A JP2000012089 A JP 2000012089A JP 2000012089 A JP2000012089 A JP 2000012089A JP 2001207977 A JP2001207977 A JP 2001207977A
- Authority
- JP
- Japan
- Prior art keywords
- base
- scroll
- manufacturing
- cold forging
- temporarily fixed
- 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
Landscapes
- Rotary Pumps (AREA)
- Forging (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、スクロールタイプ
のエアコンディショナーにおいて、コンプレッサの部品
として採用されるスクロールの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a scroll used as a component of a compressor in a scroll type air conditioner.
【０００２】[0002]
【従来の技術】スクロールは、旋回スクロールと固定ス
クロールのそれぞれ渦巻き状をしたスクロール羽根同士
を組み合わせ、旋回運動によって生ずる容積変化を利用
して圧縮を行う。従ってスクロール羽根には、気密性保
持のために高い精度と強度とが要求される。2. Description of the Related Art In a scroll, spiral scroll blades of a spiral scroll and a fixed scroll are combined with each other, and compression is performed by utilizing a volume change caused by a rotational movement. Therefore, the scroll blades are required to have high accuracy and strength for maintaining airtightness.
【０００３】[0003]
【発明が解決しようとする課題】ベースと別体に形成さ
れたスクロール羽根をベースに固着して一体化させただ
けでは、固着部分の強度や気密性にばらつきを生じやす
いので、均一した品質の製品を確保しにくい。ベースと
スクロール羽根とを鍛造手段で一体成形すれば、強度と
共に気密性も確保できるものの、スクロール羽根部分を
一度で張り出させるためには極めて大きな加圧量を必要
とするのでダイが耐えられず、加圧力を低減すれば、充
分な精度を確保できない。そのため複数の工程に分け、
低い加圧力にて少しづつゆっくりと張り出させなくくて
はならないので効率が悪い。If the scroll blades formed separately from the base are fixed to and integrated with the base, the strength and airtightness of the fixed portion are likely to vary, so that uniform quality is obtained. It is difficult to secure products. If the base and the scroll blades are integrally formed by forging means, the strength and airtightness can be ensured, but the die cannot withstand an extremely large amount of pressurization to extend the scroll blades at once. If the pressure is reduced, sufficient accuracy cannot be ensured. Therefore, it is divided into multiple processes,
Efficiency is poor because it is necessary to gradually protrude little by little at low pressure.
【０００４】[0004]
【課題を解決するための手段】本発明は、冷間鍛造を合
理的且つ効果的に利用したスクロールの製造方法であっ
て、その構成は、帯状板を所望の渦巻き状に形成し、そ
の渦巻き状に形成した帯状板の片側縁を、裏面に回転軸
が突設された円盤状のベース表面に仮固定した後、冷間
鍛造手段にて前記帯状板とベースとを一体に結合するこ
とにある。帯状板をベースに仮固定するには、溶接手段
は勿論、ベースの表面に渦巻き状パターンの凹溝を刻設
してその凹溝に帯状板の片側縁部分を嵌入したり、ベー
スに渦巻き状のスリットを切り抜き形成し、そのスリッ
トに圧入するなどの手段が好適利用できる。SUMMARY OF THE INVENTION The present invention relates to a method of manufacturing a scroll using cold forging rationally and effectively, comprising a strip-shaped plate formed in a desired spiral shape, and After temporarily fixing one side edge of the band-shaped plate formed in a shape to the surface of a disk-shaped base having a rotating shaft protruding on the back surface, the band-shaped plate and the base are integrally joined by cold forging means. is there. In order to temporarily fix the band-shaped plate to the base, not only the welding means but also a groove having a spiral pattern in the surface of the base is cut and the one side edge portion of the band-shaped plate is fitted into the groove, or the spiral is formed in the base. Means such as cutting out the slit and press-fitting the slit can be suitably used.
【０００５】[0005]
【発明の実施の形態】本発明に係るスクロールの製造方
法を図面に基づいて説明する。図１は製造過程を示した
もので、円盤状のベース１には、裏面の中央に回転軸２
が突設されており、この回転軸２は、ベース２と一体成
形されるか、同図示のように別体に形成されたピースを
溶接により結合して形成される。スクロール羽根３は、
帯状材３ａを渦巻き状に丸めて形成され、その渦巻き状
に形成したスクロール羽根３である帯状板を前記ベース
１の表面に溶接手段にて仮固定する。この仮固定におい
て、溶接部分はスポット的なものでも差し支えない。
尚、前記ベース及びスクロール羽根は、いずれもアル
ミ、或いはアルミ合金にて形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a scroll according to the present invention will be described with reference to the drawings. FIG. 1 shows a manufacturing process, in which a disk-shaped base 1 has a rotating shaft 2 at the center of the back surface.
The rotating shaft 2 is formed integrally with the base 2 or formed by welding pieces formed separately as shown in FIG. The scroll blades 3
The strip material 3a is formed by spirally rolling the strip material, and the strip plate, which is the scroll blade 3 formed in the spiral shape, is temporarily fixed to the surface of the base 1 by welding means. In this temporary fixing, the welded portion may be spot-like.
The base and the scroll blade are both made of aluminum or aluminum alloy.
【０００６】この状態では、精度も気密性も不充分であ
るため、そのままでは製品となり得ないので、次に、冷
間鍛造により気密性を高めると共に、精度アップを図
る。冷間鍛造用のダイ４には、スクロールの製品形状に
適応したキャビティ５が形成されており、そのキャビテ
ィ５内に前記スクロール羽根３が仮固定されたベース１
を押し込んで加圧する。この加圧操作により、図２に示
すようにスクロール羽根３とベース１とは強固に結合し
て一体化され、それによって精度も確保されるので、気
密性及び精度とも申し分のない製品が得られる。In this state, the precision and airtightness are insufficient, so that the product cannot be used as it is. Next, the airtightness is improved by cold forging, and the accuracy is improved. In the die 4 for cold forging, a cavity 5 adapted to the product shape of the scroll is formed, and the base 1 on which the scroll blade 3 is temporarily fixed is formed in the cavity 5.
Press and press. By this pressurizing operation, as shown in FIG. 2, the scroll blades 3 and the base 1 are firmly connected and integrated, and the accuracy is also ensured by this, so that a product with perfect airtightness and accuracy can be obtained. .
【０００７】前記実施の態様では、溶接によりスクロー
ル羽根をベースに仮固定しているが、３に図示すように
ベース１の表面に渦巻き状パターンの凹溝６を刻設し、
その凹溝６にスクロール羽根３の片側縁部分を嵌入した
り、図示はしないが、ベースに渦巻き状のスリットを切
り抜き形成し、そのスリットにスクロール羽根の片側縁
を圧入するなどして仮固定することができる。前記スリ
ット及びスクロール羽根の片端縁は段付き形状とするこ
とができ、その場合は、スクロール羽根をベースに対し
て表側から圧入する場合と、裏側から圧入する態様とが
考えられる。In the above embodiment, the scroll blades are temporarily fixed to the base by welding. However, as shown in FIG. 3, concave grooves 6 having a spiral pattern are formed on the surface of the base 1.
One side edge portion of the scroll blade 3 is fitted into the concave groove 6, or a spiral slit is cut out and formed in a base (not shown), and the one side edge of the scroll blade 3 is temporarily fixed to the slit by press-fitting. be able to. The slit and one end of the scroll blade can be formed in a stepped shape. In this case, there are a case where the scroll blade is pressed into the base from the front side and a case where the scroll blade is pressed into the base from the back side.
【０００８】そしていずれの場合でも、冷間鍛造によっ
てスクロール羽根とベースとが完全に結合され、削り出
し加工に匹敵する精度を確保できる。[0008] In any case, the scroll blades and the base are completely connected by cold forging, so that the precision equivalent to the machining can be secured.
【０００９】実施例は予め回転軸を備えたベースにスク
ロール羽根を結合して形成されるが、冷間鍛造を利用し
て、回転軸の接合をスクロール羽根とベースとの結合と
同時に行ったり、回転軸を有しない製品を形成し、回転
軸を後付けすることもできる。In this embodiment, the scroll blades are previously connected to a base having a rotary shaft. The cold rotary forging is used to join the rotary shafts simultaneously with the connection between the scroll blades and the base. It is also possible to form a product without a rotating shaft and retrofit the rotating shaft.
【００１０】尚、冷間鍛造用のダイは前記実施の態様に
示したものに限定されるものでなく、ベースとスクロー
ル羽根とを強固に結合可能な範囲内にて適宜変更でき
る。[0010] The die for cold forging is not limited to the die described in the above embodiment, but can be appropriately changed as long as the base and the scroll blades can be firmly connected.
【００１１】[0011]
【発明の効果】本発明によれば、スクロール羽根をベー
スに仮固定しておき、それらを冷間鍛造にて一体に結合
するものであるから、仮固定では精度を気にすることな
く作業できるし、冷間鍛造における変形量が少ないの
で、加圧力を低減できる。そして成形された製品にはば
らつきがなくなり、高精度の製品を安定供給できる。
又、仮固定を溶接により行うようにすればベース側には
何も加工する必要がないし、凹溝に嵌め込むことで仮固
定すれば、作業が簡単になる。更に、スリットに圧入す
れば、仮固定のみで気密性を確保できるので、冷間鍛造
における加圧力をより低減できる。According to the present invention, since the scroll blades are temporarily fixed to the base and they are integrally joined by cold forging, the temporary fixing can be performed without concern for accuracy. However, since the amount of deformation in cold forging is small, the pressing force can be reduced. And there is no variation in the molded product, and a high-precision product can be stably supplied.
Also, if the temporary fixing is performed by welding, there is no need to process anything on the base side, and if the temporary fixing is performed by fitting into the concave groove, the work is simplified. Furthermore, by press-fitting into the slit, airtightness can be secured only by temporary fixing, so that the pressing force in cold forging can be further reduced.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明に係るスクロールの製造方法を示した説
明図である。FIG. 1 is an explanatory view showing a method for manufacturing a scroll according to the present invention.
【図２】完成された製品の説明図である。FIG. 2 is an explanatory diagram of a completed product.
【図３】固定手段の変更例を示した説明図である。FIG. 3 is an explanatory view showing a modified example of the fixing means.
１・・ベース、２・・回転軸、３ａ・・帯状材、３・・
スクロール羽根、４・・ダイ、５・・キャビティ、６・
・凹溝。1. Base 2 Rotation shaft 3a Band 3
Scroll blades, 4 die, 5 cavity, 6 scroll
-Grooves.
Claims (4)
渦巻き状に形成した帯状板の片側縁を、円盤状のベース
表面に仮固定した後、冷間鍛造手段にて前記帯状板とベ
ースとを一体に結合することを特徴としたスクロールの
製造方法。1. A belt-like plate is formed in a desired spiral shape, and one side edge of the spirally formed belt-like plate is temporarily fixed to a disk-like base surface, and then the belt-like plate is formed by cold forging means. A method for manufacturing a scroll, comprising integrally joining a base and a base.
求項１に記載したスクロールの製造方法。2. The method for manufacturing a scroll according to claim 1, wherein the strip is temporarily fixed to the base by welding.
を刻設し、その凹溝に帯状板の片側縁部分を嵌入するこ
とによって仮固定する請求項１に記載したスクロールの
製造方法。3. The method for manufacturing a scroll according to claim 1, wherein a spiral groove-shaped concave groove is formed in the surface of the base, and one side edge portion of the band-shaped plate is temporarily fixed in the concave groove.
形成し、圧入することによって仮固定する請求項１に記
載したスクロールの製造方法 。4. The method for manufacturing a scroll according to claim 1, wherein a spiral slit is cut out and formed in the base and temporarily fixed by press-fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000012089A JP2001207977A (en) | 2000-01-20 | 2000-01-20 | Method for manufacturing scroll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000012089A JP2001207977A (en) | 2000-01-20 | 2000-01-20 | Method for manufacturing scroll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001207977A true JP2001207977A (en) | 2001-08-03 |
Family
ID=18539860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000012089A Pending JP2001207977A (en) | 2000-01-20 | 2000-01-20 | Method for manufacturing scroll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001207977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1602799A2 (en) * | 2004-05-31 | 2005-12-07 | Anest Iwata Corporation | Method of manufacturing an orbiting scroll in a scroll fluid machine |
-
2000
- 2000-01-20 JP JP2000012089A patent/JP2001207977A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1602799A2 (en) * | 2004-05-31 | 2005-12-07 | Anest Iwata Corporation | Method of manufacturing an orbiting scroll in a scroll fluid machine |
| EP1602799A3 (en) * | 2004-05-31 | 2008-06-25 | Anest Iwata Corporation | Method of manufacturing an orbiting scroll in a scroll fluid machine |
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