JPS6225111U - - Google Patents
Info
- Publication number
- JPS6225111U JPS6225111U JP11754785U JP11754785U JPS6225111U JP S6225111 U JPS6225111 U JP S6225111U JP 11754785 U JP11754785 U JP 11754785U JP 11754785 U JP11754785 U JP 11754785U JP S6225111 U JPS6225111 U JP S6225111U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- blade
- broach
- outer contour
- machining
- 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 claims 3
- 238000000034 method Methods 0.000 claims 1
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例であるブローチの正
面図であり、第２図における―断面図である
。第２図は上記ブローチの底面図である。第３図
は上記ブローチによる樹脂層の加工状況を示す正
面断面図である。第４図は上記ブローチの溝入刃
によつて樹脂層に溝が形成された状態を示す断面
図である。第５図は上記樹脂層が上記ブローチの
仕上刃によつて切削されて仕上面が形成された状
態を示す断面図である。第６図は第５図に示した
仕上面のうち、切込溝の底部が残つている部分を
拡大して示す図である。第７図および第８図は上
記ブローチによつて仕上げ加工されたロータを備
えたルーツ型スーパチヤージヤを示す正面断面図
および側面断面図である。第９図は本考案に係る
ブローチの溝入刃の位置をまゆ形のロータを例に
取つて説明する図である。
２０，２２：まゆ形ロータ、４２：樹脂層、４
４：ブローチ、５６：仕上刃、５８：溝入刃、７
６：切込溝。
FIG. 1 is a front view of a brooch that is an embodiment of the present invention, and is a sectional view taken in FIG. 2. FIG. 2 is a bottom view of the brooch. FIG. 3 is a front sectional view showing how the resin layer is processed by the broach. FIG. 4 is a sectional view showing grooves formed in the resin layer by the grooving blade of the broach. FIG. 5 is a sectional view showing a state in which the resin layer is cut by the finishing blade of the broach to form a finished surface. FIG. 6 is an enlarged view showing a portion of the finished surface shown in FIG. 5 in which the bottom of the cut groove remains. FIGS. 7 and 8 are a front sectional view and a side sectional view showing a roots-type supercharger equipped with a rotor finished by the broach described above. FIG. 9 is a diagram illustrating the position of the grooving blade of the broach according to the present invention, using a cocoon-shaped rotor as an example. 20, 22: eyebrow-shaped rotor, 42: resin layer, 4
4: Broach, 56: Finishing blade, 58: Grooving blade, 7
6: Cut groove.
Claims (1)
の羽根の外側輪郭を対称に二分割して得られる基
本曲線が羽根の数の２倍の数つなぎ合わされて成
るルーツ型スーパチヤージヤのロータの外周面を
加工するために、ロータの回転軸心と平行な方向
に移動し、前記ロータの外周面に形成された樹脂
層に前記方向に延びる少なくとも１本の溝を形成
する溝入刃と、その溝入刃と前記方向において直
列に設けられ、前記ロータの目標外側輪郭の一部
もしくは全部と同じ形状の切刃を有する仕上刃と
を備え、前記溝入刃による溝の形成の後に後に仕
上刃による加工によつて目標外側輪郭を得るロー
タ加工用ブローチにおいて、 前記溝入刃を、前記基本曲線上の１個または複
数個の点であつて、各点とロータの回転軸心とを
結ぶ直線が基本曲線の一端とロータの回転軸心と
を結ぶ直線と成す角度の群と、基本曲線の他端と
ロータの回転軸心とを結ぶ直線と成す角度の群と
の中に互に等しい値が存在しない点に溝を形成す
る位置に設けたことを特徴とするルーツ型スーパ
チヤージヤのロータ加工用ブローチ。[Claims for Utility Model Registration] A utility model comprising a plurality of blades, the outer contour of the cross section of which is formed by connecting twice as many basic curves as the number of blades, which are obtained by symmetrically dividing the outer contour of one blade into two. In order to process the outer circumferential surface of a rotor of a roots-type supercharger consisting of a grooving blade that forms a grooving blade, and a finishing blade that is provided in series with the grooving blade in the direction and has a cutting edge that has the same shape as a part or all of the target outer contour of the rotor, the grooving blade In a broach for rotor machining, the groove is formed by a finishing blade, and then a target outer contour is obtained by machining with a finishing blade. The group of angles that a straight line connecting the rotor's rotation axis makes with the line that connects one end of the basic curve and the rotor's rotation axis, and the angles that the line that connects the other end of the basic curve and the rotor's rotation axis A broach for machining a rotor of a roots-type supercharger, characterized in that the broach is provided at a position to form a groove at a point where there are no equal values in the group.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11754785U JPS6225111U (en) | 1985-07-31 | 1985-07-31 | |
| US06/890,630 US4693813A (en) | 1985-07-30 | 1986-07-30 | Method of broaching outer periphery of lobe-type rotor of roots-type fluid machine, and broaching cutter used in the method |
| US07/065,556 US4869623A (en) | 1985-07-30 | 1987-06-23 | Method of broaching outer periphery of lobe-type rotor of roots-type fluid machine, and broaching cutter used in the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11754785U JPS6225111U (en) | 1985-07-31 | 1985-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6225111U true JPS6225111U (en) | 1987-02-16 |
Family
ID=31003165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11754785U Pending JPS6225111U (en) | 1985-07-30 | 1985-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6225111U (en) |
-
1985
- 1985-07-31 JP JP11754785U patent/JPS6225111U/ja active Pending
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