JPH02188686A - Method for machining scroll of scroll fluid machine - Google Patents
Method for machining scroll of scroll fluid machineInfo
- Publication number
- JPH02188686A JPH02188686A JP904089A JP904089A JPH02188686A JP H02188686 A JPH02188686 A JP H02188686A JP 904089 A JP904089 A JP 904089A JP 904089 A JP904089 A JP 904089A JP H02188686 A JPH02188686 A JP H02188686A
- Authority
- JP
- Japan
- Prior art keywords
- scroll
- outermost end
- machining
- teeth
- teeth portion
- 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
- 238000003754 machining Methods 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012937 correction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、例えば全系回転形スクロール真空ポンプに
使用されるスクロール流体機械の改良に１するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is aimed at improving a scroll fluid machine used, for example, in a full-system rotary scroll vacuum pump.
（従来の技術〕
第３図は従来のスクロール流体機械を示す断面図であり
、図において、（υは下部に潤滑油αりが収容されたケ
ーシング、（２）はこのケーシング（１）内に配置され
たモードルで、その回転軸（３）は軸受支え（４）とフ
ランジ（５）とで支持されている。（６）はこのフラン
ジ（５）に結合された固定スクロール、（７）はこの固
定スクロール（６）に対し旋回連動し得るように上記回
転軸（３）により偏心回転される揺動スクロール、（８
月よ上記固定スクロール（６）内に連通した給気口、（
９）は上記固定スクロール（６）と上記揺動スクロール
（７）にて圧縮された空気を排気する排気口である。(Prior Art) Fig. 3 is a sectional view showing a conventional scroll fluid machine. The rotating shaft (3) is supported by a bearing support (4) and a flange (5). (6) is a fixed scroll connected to this flange (5), and (7) is a fixed scroll connected to this flange (5). An oscillating scroll (8) eccentrically rotated by the rotating shaft (3) so as to rotate in conjunction with the fixed scroll (6);
Moon, the air supply port communicating with the above fixed scroll (6), (
9) is an exhaust port for exhausting the air compressed by the fixed scroll (6) and the swinging scroll (7).
従来のスクロール流体機械は以上のように構成されてい
るので、各スクロール（７）の歯部（７ｂ）の内径側を
機械加工する場合、巻終り側に近づ（につれて歯部（７
ｂ）の剛性が弱くなり、最外端（７Ｃ）ではエンドミル
の押圧力で外周側に第４図中破線で示すようにたわみが
生じ加工完了後に、これが元にもどるため、仕上り精度
を確保できないという課題があった。Since the conventional scroll fluid machine is configured as described above, when machining the inner diameter side of the tooth portion (7b) of each scroll (7), the tooth portion (7b) is machined as it approaches the end of the winding.
The rigidity of b) is weakened, and at the outermost end (7C), due to the pressing force of the end mill, the outer periphery is bent as shown by the broken line in Figure 4, and this returns to its original state after machining is completed, making it impossible to ensure finishing accuracy. There was a problem.
この発明は上記の問題点を解決するためになされたもの
で、簡単な構成でスクロールの歯部最外端の加工精度を
向上できるスクロール流体機械を得ることを目的とする
。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain a scroll fluid machine that can improve the machining accuracy of the outermost end of the tooth portion of the scroll with a simple configuration.
この発明に係るスクロール流体機械は、一方のスクロー
ルの歯部の最外端部を、予め仕上り寸法よりも最外端側
へ延長して形成し、上記歯部の内外周を加工後に、上記
最外端部の延長部分を切削除去したものである。In the scroll fluid machine according to the present invention, the outermost end of the teeth of one scroll is formed in advance to extend further to the outermost end than the finished dimension, and after machining the inner and outer peripheries of the teeth, The extended portion of the outer end has been removed.
この発明におけるスクロール流体機械は、スクロールの
歯部の最外端部を予め仕上り寸法よりも最外端側へ延長
して形成した部分に、変形が生じても、その変形部分が
切削除去される。In the scroll fluid machine according to the present invention, even if a deformation occurs in the portion formed by extending the outermost end of the scroll tooth portion in advance to the outermost end side beyond the finished dimension, the deformed portion is cut and removed. .
第１図、第２図はこの発明の一実施例を示す図である。 FIG. 1 and FIG. 2 are diagrams showing an embodiment of the present invention.
第１図は要部断面図、第２図は第１図の線１−ｌの断向
図であり、前記従来のものと同一または相当部分には同
一符号を付して説明を省略する。図において、 （１２
ａ）、 （１ｚｂ）はアンバランス修正用のバランスウ
ェイトで、揺動スクロール（７）のつば部（７ａ）の外
周にボルトなどで固定配置される。FIG. 1 is a sectional view of a main part, and FIG. 2 is a sectional view taken along line 1--l in FIG. In the figure, (12
a) and (1zb) are balance weights for correcting unbalance, which are fixed to the outer periphery of the flange (7a) of the swinging scroll (7) with bolts or the like.
（２）は揺動スクロール（７）の正規の歯部（７ｂ）の
うち圧縮機能に関与しない部分に設けた肉厚削減部で、
バランス修正のために形成しである。(2) is a wall thickness reduction part provided in a part of the regular tooth part (7b) of the oscillating scroll (7) that is not involved in the compression function;
Formed to correct balance.
なお、バランス修正のための増量分および減員分は予め
計算により求め、揺動スクロール（７）のつば部（７ａ
）の外周の適正な位置にバランスウェイト（１２ａ）
、 （ｔ２ｂ）を取り付けると共に、揺動スクロール（
７）の加工段階で部分的に肉厚を変化させて肉厚削減部
（２）を形成し、組立後の修正および加工後組立前のバ
ランス修正を省略することが可能である。また、第２図
において、 （７ｄ）は揺動スクロール（７）の歯部（
７ｂ）の最外端（７Ｃ）に正規寸法よりも延長して形成
された延長部である。In addition, the amount of increase and decrease in amount for balance correction are calculated in advance, and the flange (7a
) At the appropriate position on the outer periphery of the balance weight (12a)
, (t2b) and the swinging scroll (
By partially changing the wall thickness in the processing step 7) to form the reduced wall thickness portion (2), it is possible to omit corrections after assembly and balance corrections after processing and before assembly. In addition, in Fig. 2, (7d) is the tooth part (7d) of the swinging scroll (7).
This is an extension portion formed at the outermost end (7C) of 7b) to extend beyond the regular dimension.
上記のように構成されたものにおいては、スクロール（
７）の歯部（７ｂ）を加工する場合、最外端（７Ｃ）に
延長部（７ｄ）が形成されているため、歯部（７ｂ）の
外周側に向った大きな圧力は、延長部（７ｄ）のみに作
用し、この延長部（７ｄ）を切削除去することで歯部（
７ｂ）の寸法を高精度に形成できる。In the configuration as above, the scroll (
When machining the tooth portion (7b) of 7), since the extension portion (7d) is formed at the outermost end (7C), the large pressure directed toward the outer circumferential side of the tooth portion (7b) is applied to the extension portion (7d). 7d), and by cutting and removing this extension (7d), the teeth (
7b) can be formed with high precision.
特に、第２因のように、スクロール（７）の外端側の肉
厚を削減したものでは、歯部（７ｂ）の剛性が更に小さ
くなるので、逃げ部を設ける効果は著るしい。In particular, as in the second factor, where the wall thickness on the outer end side of the scroll (7) is reduced, the rigidity of the tooth portion (7b) is further reduced, so the effect of providing the relief portion is significant.
以上のようにこの発明は、一方のスクロールの歯部の最
外端部を、予め仕上り寸法よりも最外端側へ延長して形
成し、上記歯部の内外周を加工後に、上記最外端部の延
長部分を切削除去したので、スクロールの歯部の加工時
における歯部最外端の加工精度を向上できる効果がある
。As described above, in the present invention, the outermost end of the teeth of one scroll is formed in advance to extend further to the outermost end than the finished dimension, and after machining the inner and outer peripheries of the teeth, Since the extended portion of the end portion is cut off, there is an effect of improving the machining accuracy of the outermost end of the tooth portion when machining the tooth portion of the scroll.
第１図はこの発明の一実施例を示す要部断面図、第２図
は第１図の１−１線における断面図、第３図は従来装置
の断面図、第４図はその部分断面図である。
図において、（ｌ）はケーシング、（６）は固定スクロ
ール、（７）は揺動スクロール、（７ｂ）は歯部、（７
ｃ）は最外端、（７ｄ）は延長部、（１２ａ）、 （１
２ｂ）はバランスウェイト、（２）は肉厚削減部を示す
。
なお、図中、同一符号は同一 または相当部分を示す。Fig. 1 is a sectional view of a main part showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line 1-1 in Fig. 1, Fig. 3 is a sectional view of a conventional device, and Fig. 4 is a partial sectional view thereof. It is a diagram. In the figure, (l) is a casing, (6) is a fixed scroll, (7) is an oscillating scroll, (7b) is a tooth part, (7
c) is the outermost end, (7d) is the extension, (12a), (1
2b) shows the balance weight, and (2) shows the reduced wall thickness part. In addition, the same symbols in the figures indicate the same or equivalent parts.
Claims (1)
する一方あるいは互いに回転する少なくとも一方のスク
ロールの歯部の最外端部を、予め仕上り寸法よりも最外
端側へ延長して形成し、上記歯部の内外周を加工後に、
上記最外端部の延長部分を切削除去したことを特徴とす
るスクロール流体機械のスクロール加工方法。The outermost ends of the teeth of one of the rotating scrolls or at least one of the scrolls that rotate with each other are formed in advance to extend further to the outermost end side than the finished dimension, and the teeth of the teeth are After processing the inner and outer periphery of the part,
A scroll machining method for a scroll fluid machine, characterized in that the extended portion of the outermost end is cut and removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP904089A JPH02188686A (en) | 1989-01-18 | 1989-01-18 | Method for machining scroll of scroll fluid machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP904089A JPH02188686A (en) | 1989-01-18 | 1989-01-18 | Method for machining scroll of scroll fluid machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02188686A true JPH02188686A (en) | 1990-07-24 |
Family
ID=11709533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP904089A Pending JPH02188686A (en) | 1989-01-18 | 1989-01-18 | Method for machining scroll of scroll fluid machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02188686A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100393565B1 (en) * | 2000-10-23 | 2003-08-09 | 엘지전자 주식회사 | Asymmetric scroll compressor |
-
1989
- 1989-01-18 JP JP904089A patent/JPH02188686A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100393565B1 (en) * | 2000-10-23 | 2003-08-09 | 엘지전자 주식회사 | Asymmetric scroll compressor |
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