JPS6288507A - Machining method for scroll parts - Google Patents
Machining method for scroll partsInfo
- Publication number
- JPS6288507A JPS6288507A JP60227857A JP22785785A JPS6288507A JP S6288507 A JPS6288507 A JP S6288507A JP 60227857 A JP60227857 A JP 60227857A JP 22785785 A JP22785785 A JP 22785785A JP S6288507 A JPS6288507 A JP S6288507A
- Authority
- JP
- Japan
- Prior art keywords
- tool
- scroll part
- base circle
- scroll
- axis
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F15/00—Methods or machines for making gear wheels of special kinds not covered by groups B23F7/00 - B23F13/00
- B23F15/06—Making gear teeth on the front surface of wheels, e.g. for clutches or couplings with toothed faces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Rotary Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は冷凍機等の圧縮機に使用されるスクロール部品
の加工方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for processing scroll parts used in compressors such as refrigerators.
〈従来の技術〉
冷凍機等の圧縮機に使用されるスクロール部品の壁面を
エンドミル等の工具で加工するに際し、従来はスクロー
ル部品のインデリュート曲線の関係式をコンピュータに
よシ計算して直交座標系の座標値に置き換え、この座標
値を点から点への移動指命として直交したＸ−Ｙ座標系
のマシニングセンタのＮＣ装置に入力し、工具とスクロ
ール部品との相対運動を行なわせて加工を行なっていた
。したがって、工具の運動軌跡はうず巻状となる。<Prior art> When machining the wall surface of a scroll component used in a compressor such as a refrigerator using a tool such as an end mill, conventionally the relational expression of the indelute curve of the scroll component was calculated by computer and the orthogonal coordinates were calculated. This coordinate value is input into the NC device of the machining center in the orthogonal X-Y coordinate system as a point-to-point movement command, and the tool and scroll part are moved relative to each other to perform machining. I was doing it. Therefore, the motion trajectory of the tool is spiral.
〈発明が解決しようとする問題点〉
従来のスクロール部品の加工では次の欠点を有している
。<Problems to be Solved by the Invention> The conventional processing of scroll parts has the following drawbacks.
Φ 工具の現在点より次の点までの距離を移動する時間
が、ＮＣ装置の一ブロックの演算処理による時間に限定
され、工具の送シ速度の上限が定まシ高速加工ができな
い。Φ The time it takes for the tool to move the distance from the current point to the next point is limited to the time required for calculation processing in one block of the NC device, and the upper limit of the tool feed speed is fixed, making high-speed machining impossible.
■ ＮＣ装置のサーボの追従遅れにより、Ｘ−Ｙ補間を
行なった場合スクロール部品の中央部に近づくに従って
工具の移動軌跡の誤差が大きくなり、工具の送シ速度を
上げることができない。(2) Due to the follow-up delay of the servo of the NC device, when XY interpolation is performed, the error in the tool movement trajectory increases as the center of the scroll component approaches, making it impossible to increase the tool feeding speed.
■ 工具の移動軌跡をＸ−Ｙ座標値に置き換えるための
コンピュータ処理が必要となる本発明は上記欠点を有効
に解決するためになされたもので、スクロール部品を高
速でしかも高精度に加工できるスクロール部品の加工方
法を提供することを目的とする。■ The present invention, which requires computer processing to convert the tool movement locus into X-Y coordinate values, was developed to effectively solve the above-mentioned drawbacks. The purpose is to provide a method for processing parts.
く問題点を解決するための字表〉
上記目的を達成するための本発明の要旨はスクロール部
品のインボリュート曲線の渦巻状の壁を加工するスクロ
ール部品の加工方法であって、加工用の工具の中心位置
を該インボリュート曲線の基礎円に接する直線上を移動
させると共に、該工具の直線移動と一定比でもって同期
させて前記スクロール部品をインボリュート曲線の基礎
円の中心を回転中心として回転させることを特徴とする
スクロール部品の加工方法に存する。The gist of the present invention to achieve the above object is a scroll component machining method for machining a spiral wall of an involute curve of a scroll component, which includes a machining tool. The center position is moved on a straight line tangent to the base circle of the involute curve, and the scroll part is rotated about the center of the base circle of the involute curve in synchronization with the linear movement of the tool at a constant ratio. The feature lies in the processing method of scroll parts.
く作 用〉
工具を直線状に移動させると共に、スクロール部品を回
転させる。この時工具の移動とスクロール部品の回転と
を一定比でもって同。 期させる。Function: Moves the tool linearly and rotates the scroll parts. At this time, the movement of the tool and the rotation of the scroll parts are kept at a constant ratio. make the deadline.
く実 施 例〉
第１図（ａ）にはスクロール部品の平面、第１図（ロ）
には第１図（ａ）中のＩ−Ｉ線断面を示しである。図示
のスクロール部品１は冷凍機等の圧縮機として使用され
る主要部品であり、イ、 ンセリュート曲線の壁２で相
手部品（渦巻が逆のスクロール部品）と噛み合い、流体
を外周部から中心に向って圧縮する。このため壁２の内
外の壁面の精度は、気密性が要求されるため高精度に維
持する必要がある。 。Example of implementation〉 Figure 1 (a) shows the plane of the scroll part, Figure 1 (b)
1A shows a cross section taken along line II in FIG. 1(a). The scroll part 1 shown in the figure is a main part used as a compressor for refrigerators, etc., and engages with a mating part (a scroll part with opposite spirals) at the wall 2 of an inserute curve, and directs fluid from the outer periphery toward the center. and compress it. For this reason, the accuracy of the inner and outer wall surfaces of the wall 2 must be maintained at a high level of accuracy since airtightness is required. .
第２図には、スクロール部品１を加工する工作機械を示
してラシ、工具３を装着した主軸４と、これらを回転駆
動させる主軸頭５と、主軸頭５を上下（２軸〕に移動さ
せる送り駆動装置６及びコラム７と、スクロール部品１
を把握するチャック８と、これらを回転させる回転テー
ブル９（Ｃ軸〕１．左右方向（Ｘ軸）に移動させるテー
ブル１０、前後方向ＣＹ軸）に移動させるサドル１１お
よびペッド１，２トから成υ、ｘ、ｙ、ｚの直交した３
軸と回転軸Ｃ軸とをＮＣ装置１３からの指令で制御する
。Fig. 2 shows a machine tool for processing a scroll component 1, and shows a main spindle 4 equipped with a ripple and a tool 3, a spindle head 5 that rotationally drives these, and a spindle head 5 that moves the spindle head 5 up and down (2 axes). Feed drive device 6, column 7, and scroll component 1
A rotating table 9 (C-axis) for rotating these; a table 10 for moving in the left-right direction (X-axis); a saddle 11 for moving in the front-rear direction (CY-axis); and peds 1 and 2. υ, x, y, z orthogonal 3
The axis and the rotation axis C-axis are controlled by commands from the NC device 13.
第３図にはスクロール部品１と工具３との関係を示し、
スクロール部品１の壁２の外側を加工する場合である。FIG. 3 shows the relationship between the scroll part 1 and the tool 3,
This is a case where the outside of the wall 2 of the scroll component 1 is processed.
外壁面１４は半径Ｒｇの基礎円１５で定義されるインボ
リュート曲線でアシ、工具３は例えばエンドミルである
。The outer wall surface 14 is an involute curve defined by a base circle 15 having a radius Rg, and the tool 3 is, for example, an end mill.
そして工具３０回転中心す点は基礎円１５の半径Ｒｇ分
オフセットした接ｌＲｄ線上を移動可能となっておシ、
またスクロール部品１は基礎円１５の中心ａ点を中心と
して回転可能に配置されている。これらの運動は第２図
に示したＮＣ工作機械によって行なわせる。半径Ｒｇ分
のオフセットをＹ軸（ｔたはＸ軸ン、ｄ線上の移動をＸ
軸（またはＹＪｌｌＩｔｌ）、ａ点を中心とする回転運
動をＣ軸でそれぞれ行い、ｚ軸は工具の長さ方向（加工
深さ〕を決定する。Then, the point at which the tool 30 is rotated can be moved on a tangent line Rd offset by the radius Rg of the base circle 15.
Further, the scroll component 1 is arranged so as to be rotatable about the center point a of the base circle 15. These movements are performed by the NC machine tool shown in FIG. The offset for the radius Rg is the Y axis (t or X axis), and the movement on the d line is the X axis.
axis (or YJllItl), a rotational movement about point a is performed on the C axis, and the z axis determines the length direction (machining depth) of the tool.
こむで、インボリュート曲線の始点Ｓ点と、との角度を
θ、Ｃ点とｅ点の角度をφ、ａ点とＣ点の距離をｒｌ
ｅ点とＣ点の距離をｘ□とすると次の関係式が成シ立つ
。Let θ be the angle between the starting point S of the involute curve and , φ be the angle between point C and e, and rl be the distance between point a and C
When the distance between point e and point C is x□, the following relational expression holds true.
θ。＝ ｔａｎφ。−φ。（インボリュート関数〕 ・
・・（１）ｒ・＝」Ｌ ・・・（２
）ｃｏｓφＯ
Ｏ
−＝ ｔａｎφＧ ・・・（３）
１ｇ
（１） （３１式よシ
となシｘｏとψは単純比例となる。θ. = tanφ. −φ. (Involute function) ・
・・・(1)r・＝”L ・・・(2
) cosφO O −= tanφG ... (3)
1g (1) (As per formula 31, xo and ψ are simply proportional.
工具３は、外壁画工４と接すると、工具３の半径−とじ
て次の関係式が成シ立り。When the tool 3 comes into contact with the exterior wall work 4, the following relational expression holds true, where the radius of the tool 3 is -.
θ＝ ｔａｎφ。−φ。 ・・・（５
）ζこで、ψ。＝ψ・＋α ・・・（９
）Ｘｃ ＝ Ｘｏ＋ψＣ・（１Ｇ
であるから（８）式は
となり、工具３のＸ方向の直線移動とスクロール部品１
の回転動とは単純比例となシ、Ｘ方向に工具半径分子ｃ
１回転角襄でαだけ外壁面１４のインボリユート曲線よ
シオフセットしく１）式の比で工具３の移動とスクロー
ル部品１の回転とを行なわせれば外壁面１４の加工が行
える。内壁面１６も同様に加工できる。θ=tanφ. −φ. ...(5
) ζ where ψ. =ψ・＋α ...(9
)Xc = Xo+ψC・(1G), so equation (8) becomes
The rotational movement of is simply proportional, and the tool radius numerator c in the X direction
The outer wall surface 14 can be machined by moving the tool 3 and rotating the scroll part 1 according to the ratio of equation 1) such that the involute curve of the outer wall surface 14 is offset by α in one rotation angle. The inner wall surface 16 can also be processed in the same manner.
これをＮＣ装置１３０指令で行う場合は、工具３の中心
の描くインボリユート曲線上に工具３とスクロール部品
１を位置決めしく第４図（ａ）参照、切削開始点の座標
（Ｘｏ 、 Ｃｏ） ）、ｔａ４図（ロ）の切削終了点
の座ＩＪ （Ｘｘ 、 Ｃｘ ）に工具３及びスクロー
ル部品１が移動するように指令すればよい。ＮＣ装置１
３内部でＸ、Ｃ軸に対し、０１式の比で比例分配を行な
い補間を行う・。If this is done by commands from the NC device 130, the tool 3 and the scroll part 1 should be positioned on the involute curve drawn by the center of the tool 3, as shown in Figure 4 (a), the coordinates of the cutting start point (Xo, Co), The tool 3 and the scroll component 1 may be instructed to move to the cutting end point IJ (Xx, Cx) in Fig. ta4 (b). NC device 1
3. Perform interpolation by proportionally distributing the X and C axes internally using the ratio of formula 01.
この補間方法は、工具位置とスクロール部品の回転角の
関係を表わす第５図に示すようにＮＣ装置１３の送シモ
ータのサーゼ追従遅れに−る両差は理論上のインぎリュ
ート曲線上にあシ、指令値に対し遅れるだけであシイン
ボリユート曲線から逸脱しない。即ち加工誤差は解消さ
れる。また、切削開始点から切削終了点までの移動指令
が一つで行なえるためＮＣ装置１３のブロック処理時間
の影響はない。従って工具３の送シ速度の上限がなくな
り高速加工が可能となる。In this interpolation method, as shown in FIG. 5, which shows the relationship between the tool position and the rotation angle of the scroll component, the difference in the serze follow-up delay of the feed motor of the NC device 13 is on the theoretical injector curve. However, it only lags behind the command value and does not deviate from the involute curve. In other words, processing errors are eliminated. Further, since a single movement command from the cutting start point to the cutting end point can be issued, there is no influence on the block processing time of the NC device 13. Therefore, there is no upper limit on the feeding speed of the tool 3, and high-speed machining becomes possible.
〈発明の効果〉
本発明のスクロール部品の加工方法は、スする直線上を
移動させ、スクロール部品の回転と工具の移動を一定比
でもって同期させるので、スクロール部品を高速でしか
も高精度に加工することができる。また、工具補正は直
線補間となりＮＣプログラムの作成が容易となる。<Effects of the Invention> The scroll component processing method of the present invention moves the scroll component on a straight line and synchronizes the rotation of the scroll component and the movement of the tool at a constant ratio, so the scroll component can be processed at high speed and with high precision. can do. In addition, tool correction is performed by linear interpolation, making it easier to create an NC program.
第１図（ａ）はスクロール部品の平面図、第１図（ｂ）
は第１図（ａ）中のＩ−Ｉ線断面図、第２図は本発明方
法を実施するＮＣ工作機械の斜視図、第３図は工具とス
クロール部品の関係を表わす概念図、！４図（ａ）は加
工開始状態の工具とスクロール部品の関係を表わす概念
図、第４図（ロ）は加工終了状態の工具とスクロール部
品の関係を表わす概念図、第５図は工具位置とスクロー
ル部品の回転角の関係を表わすグラフである。
図 面 中、
１はスクロール部品、
３は工具、
１４は外壁面、
１６は内壁面であるっ
特許出頭人
三菱重工業株式会社
復代理人
弁理士 元 石 士 部（他１名）
第１図
第４図
（ｂ）
第５図
回転角（Ｃ軸）Figure 1(a) is a plan view of the scroll parts, Figure 1(b)
is a sectional view taken along the line II in FIG. 1(a), FIG. 2 is a perspective view of an NC machine tool that implements the method of the present invention, and FIG. 3 is a conceptual diagram showing the relationship between tools and scroll parts. Figure 4 (a) is a conceptual diagram showing the relationship between the tool and the scroll part in the machining start state, Figure 4 (b) is a conceptual diagram showing the relationship between the tool and the scroll part in the machining completed state, and Figure 5 is a conceptual diagram showing the relationship between the tool position and the scroll part. It is a graph showing the relationship between rotation angles of scroll parts. In the drawing, 1 is a scroll part, 3 is a tool, 14 is an outer wall surface, and 16 is an inner wall surface. Patent applicant: Mitsubishi Heavy Industries, Ltd., sub-agent Patent attorney, Shibu Moto Ishi (and one other person) Figure 1 Figure 4 (b) Figure 5 Rotation angle (C axis)
Claims (1)
工するスクロール部品の加工方法であつて、加工用の工
具の中心位置を該インボリュート曲線の基礎円に接する
直線上を移動させると共に、該工具の直線移動と一定比
でもつて同期させて前記スクロール部品をインボリユー
ト曲線の基礎円の中心を回転中心として回転させること
を特徴とするスクロール部品の加工方法。A method of machining a scroll component for machining a spiral wall of an involute curve of a scroll component, which method includes moving the center position of a machining tool along a straight line tangent to a base circle of the involute curve, and moving the tool in a straight line. A method for processing a scroll component, characterized in that the scroll component is rotated about the center of a base circle of an involute curve in synchronization with a fixed ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60227857A JPH0628812B2 (en) | 1985-10-15 | 1985-10-15 | Processing method for scroll parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60227857A JPH0628812B2 (en) | 1985-10-15 | 1985-10-15 | Processing method for scroll parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6288507A true JPS6288507A (en) | 1987-04-23 |
| JPH0628812B2 JPH0628812B2 (en) | 1994-04-20 |
Family
ID=16867449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60227857A Expired - Lifetime JPH0628812B2 (en) | 1985-10-15 | 1985-10-15 | Processing method for scroll parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628812B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01177617A (en) * | 1988-01-08 | 1989-07-13 | Fanuc Ltd | Involute interpolation system |
| JPH0241847A (en) * | 1988-07-28 | 1990-02-13 | Mazda Motor Corp | Working device for scroll shape |
| JPH03221307A (en) * | 1990-01-22 | 1991-09-30 | Sanden Corp | Manufacture of scroll member |
| JPH0628812B2 (en) * | 1985-10-15 | 1994-04-20 | 三菱重工業株式会社 | Processing method for scroll parts |
| JPH10328957A (en) * | 1997-03-27 | 1998-12-15 | Hitachi Ltd | Scroll shape machining device and machining method |
| KR100313894B1 (en) * | 1999-05-31 | 2001-11-15 | 구자홍 | scroll type compressor |
| KR100313895B1 (en) * | 1999-05-31 | 2001-11-15 | 구자홍 | scroll type compressor |
| CN116339241A (en) * | 2023-05-19 | 2023-06-27 | 上海交大智邦科技有限公司 | Method and system for generating machining program of scroll part of electric scroll compressor |
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| US3714865A (en) * | 1971-01-07 | 1973-02-06 | Cam Apt | Apparatus for milling cams and the like, as for swiss-type screw machine cams |
| JPS5066897A (en) * | 1973-10-18 | 1975-06-05 | ||
| JPS5147918A (en) * | 1974-10-23 | 1976-04-24 | Chiyoda Seisakusho | Segumentono tategataseikeiho |
| US3994635A (en) * | 1975-04-21 | 1976-11-30 | Arthur D. Little, Inc. | Scroll member and scroll-type apparatus incorporating the same |
| JPS5337970A (en) * | 1976-09-20 | 1978-04-07 | Riken Steel Kk | Method of working single vibrating curved surface by numerical value controlling machine tool |
| JPS5715610A (en) * | 1980-06-24 | 1982-01-27 | Mitsubishi Electric Corp | Scroll machining device |
| JPS57179392A (en) * | 1981-04-24 | 1982-11-04 | Mitsubishi Electric Corp | Working method of scroll member in scroll compressor |
| US4463591A (en) * | 1981-03-02 | 1984-08-07 | Arthur D. Little, Inc. | Method of fabricating scroll members by coining and tools therefor |
| JPS6257856A (en) * | 1985-09-05 | 1987-03-13 | Hitachi Ltd | Method for machining involute form |
| JPS6444442A (en) * | 1987-08-11 | 1989-02-16 | Sharp Kk | Medium cartridge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0628812B2 (en) * | 1985-10-15 | 1994-04-20 | 三菱重工業株式会社 | Processing method for scroll parts |
-
1985
- 1985-10-15 JP JP60227857A patent/JPH0628812B2/en not_active Expired - Lifetime
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3600114A (en) * | 1968-07-22 | 1971-08-17 | Leybold Heraeus Verwaltung | Involute pump |
| US3714865A (en) * | 1971-01-07 | 1973-02-06 | Cam Apt | Apparatus for milling cams and the like, as for swiss-type screw machine cams |
| JPS5066897A (en) * | 1973-10-18 | 1975-06-05 | ||
| JPS5147918A (en) * | 1974-10-23 | 1976-04-24 | Chiyoda Seisakusho | Segumentono tategataseikeiho |
| US3994635A (en) * | 1975-04-21 | 1976-11-30 | Arthur D. Little, Inc. | Scroll member and scroll-type apparatus incorporating the same |
| JPS5337970A (en) * | 1976-09-20 | 1978-04-07 | Riken Steel Kk | Method of working single vibrating curved surface by numerical value controlling machine tool |
| JPS5715610A (en) * | 1980-06-24 | 1982-01-27 | Mitsubishi Electric Corp | Scroll machining device |
| US4463591A (en) * | 1981-03-02 | 1984-08-07 | Arthur D. Little, Inc. | Method of fabricating scroll members by coining and tools therefor |
| JPS57179392A (en) * | 1981-04-24 | 1982-11-04 | Mitsubishi Electric Corp | Working method of scroll member in scroll compressor |
| JPS6257856A (en) * | 1985-09-05 | 1987-03-13 | Hitachi Ltd | Method for machining involute form |
| JPS6444442A (en) * | 1987-08-11 | 1989-02-16 | Sharp Kk | Medium cartridge |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0628812B2 (en) * | 1985-10-15 | 1994-04-20 | 三菱重工業株式会社 | Processing method for scroll parts |
| JPH01177617A (en) * | 1988-01-08 | 1989-07-13 | Fanuc Ltd | Involute interpolation system |
| JPH0241847A (en) * | 1988-07-28 | 1990-02-13 | Mazda Motor Corp | Working device for scroll shape |
| JPH03221307A (en) * | 1990-01-22 | 1991-09-30 | Sanden Corp | Manufacture of scroll member |
| JPH10328957A (en) * | 1997-03-27 | 1998-12-15 | Hitachi Ltd | Scroll shape machining device and machining method |
| KR100313894B1 (en) * | 1999-05-31 | 2001-11-15 | 구자홍 | scroll type compressor |
| KR100313895B1 (en) * | 1999-05-31 | 2001-11-15 | 구자홍 | scroll type compressor |
| CN116339241A (en) * | 2023-05-19 | 2023-06-27 | 上海交大智邦科技有限公司 | Method and system for generating machining program of scroll part of electric scroll compressor |
| CN116339241B (en) * | 2023-05-19 | 2023-09-19 | 上海交大智邦科技有限公司 | Method and system for generating machining program of scroll part of electric scroll compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0628812B2 (en) | 1994-04-20 |
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