JPH0457611A - Manufacture of clutch piston - Google Patents
Manufacture of clutch pistonInfo
- Publication number
- JPH0457611A JPH0457611A JP16502590A JP16502590A JPH0457611A JP H0457611 A JPH0457611 A JP H0457611A JP 16502590 A JP16502590 A JP 16502590A JP 16502590 A JP16502590 A JP 16502590A JP H0457611 A JPH0457611 A JP H0457611A
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- seat surface
- tool
- cutting
- machined
- 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
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
【発明の詳細な説明】
＝発明の目的＝
〔産業上の利用分野〕
本発明は、自動車の流体式自動変速機などに使用される
油圧切換のためのクラッチピストンの製造方法に関する
。DETAILED DESCRIPTION OF THE INVENTION =Object of the Invention= [Industrial Application Field] The present invention relates to a method of manufacturing a clutch piston for hydraulic switching used in a hydraulic automatic transmission of an automobile.
第１図及び第１図のＡ−Ａ線断面を表わす第２図に示さ
れる如く、クラッチピストン１のリリーフバルブ装着部
２は、７ラング部８側面１４に対して所定角度Ｂ傾斜し
た第１の弁座面４と、その第１の弁座面４に接続され、
所定角度Ｃ傾斜角が増加した第２の弁座面５を有してお
り、複数の切削加工工程で、第１の弁座面４及び第２の
弁座面５を順次切削加工していた。そして、クラッチピ
ストン１の機能上、リリーフバルブと第１の弁座面４及
び第２の弁座面５が、強く当接して、油の流れを止める
作用をしており、そのため第１の弁座面４と第２の弁座
面５は滑らかに加工されている必要がある。しかし、従
来のクラッチピストンの製造方法を表わす第６図及び７
図に示す如く、ツール３の回転軸６を、第１の弁座面４
に対して垂直に設定した場合、第３図に示すツール３の
全ての刃先１５．１６．１７．１８が、回転軸６を中心
に回転しながら、第１の弁座面４に接していることにな
る。従って、既に切削加工が施された加工面に、再び不
要な切削を施してしまうおそれがあり、加工面が粗くな
ってしまう問題が発生した。又、第２の弁座面５におい
ても、同じ理由で、同じ問題が発生した。そこで、所途
の後工程で、これら弁座面４．５を修正加工することが
考えられるが、クラッチピストン１は、板厚が径に比し
て薄いので、クラッチピストン１が治具に保持される時
のクランプ荷重による湾曲変形の度合いが、加工装置毎
に変化してしまう。つまり、後工程で、クラッチピスト
ン１が治具に保持される時のクランプ荷重による湾曲変
形の度合いも一定ではない。As shown in FIG. 1 and FIG. 2, which is a cross-sectional view taken along the line A-A in FIG. and the first valve seat surface 4,
It has a second valve seat surface 5 whose inclination angle is increased by a predetermined angle C, and the first valve seat surface 4 and the second valve seat surface 5 are sequentially cut in a plurality of cutting processes. . Due to the function of the clutch piston 1, the relief valve, the first valve seat surface 4, and the second valve seat surface 5 come into strong contact and act to stop the flow of oil. The seat surface 4 and the second valve seat surface 5 must be machined smoothly. However, FIGS. 6 and 7 depicting the conventional method of manufacturing clutch pistons.
As shown in the figure, the rotating shaft 6 of the tool 3 is connected to the first valve seat surface 4.
When set perpendicularly to It turns out. Therefore, there is a risk that unnecessary cutting will be performed again on a machined surface that has already been machined, resulting in a problem that the machined surface will become rough. Further, the same problem occurred on the second valve seat surface 5 for the same reason. Therefore, it is possible to modify these valve seat surfaces 4.5 in a certain post-process, but since the plate thickness of the clutch piston 1 is thinner than the diameter, the clutch piston 1 is held in a jig. The degree of bending deformation due to the clamp load when the machine is cut varies depending on the processing equipment. In other words, the degree of bending deformation due to the clamp load when the clutch piston 1 is held by a jig in a subsequent process is also not constant.
従って、加工面の凹凸を滑らかに修正する為、凸部を切
削除去する様な、すなわち一定の深さを切削する様な、
機機作業を施すには、第１の弁座面４及び第２の弁座面
５の加工面の粗さ及び角度Ｂ１Ｃに適合する様、半製品
毎に、各々に対する切削代及びツール３の送り角度を微
調整する必要があり、多大な時間を必要とする。その結
果、クラッチピストンの製造を機械流れ作業により行う
ことは不可能であった。Therefore, in order to smoothen the unevenness of the machined surface, it is necessary to cut and remove the convex portions, that is, cut to a certain depth.
In order to carry out machine work, the cutting allowance and tool 3 are adjusted for each semi-finished product to match the roughness and angle B1C of the machined surfaces of the first valve seat surface 4 and the second valve seat surface 5. It is necessary to finely adjust the feed angle, which requires a large amount of time. As a result, it has been impossible to manufacture clutch pistons by machine assembly operations.
＝発明の構成＝
〔課題を解決するための手段〕
ツールの回転軸を、ツールの送り方向に傾斜させて、ツ
ールで第１の弁座面及び第２の弁座面を切削加工する。=Structure of the Invention= [Means for Solving the Problem] The rotation axis of the tool is inclined in the feeding direction of the tool, and the first valve seat surface and the second valve seat surface are cut with the tool.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第１図及び第２図は切削加工が施されたクラ・ツチピス
トン１を表わしている。FIGS. 1 and 2 show a clamp piston 1 that has been subjected to cutting work.
クラッチピストン１は、薄肉円盤状のフランジ部８の内
周にボス部７を有し、外周にガイド部９を有し、フラン
ジ部８側面１４には、リリーフノくルブ装看部２と座繰
部２２が、掘込み及び穿孔形成されている。The clutch piston 1 has a boss portion 7 on the inner periphery of a thin disk-shaped flange portion 8, a guide portion 9 on the outer periphery, and a relief nozzle on the side surface 14 of the flange portion 8. The portion 22 is cut and bored.
このリリーフバルブ装着部２は、フランジ部８側面１４
に対して所定角度Ｂ傾斜した第１の弁座面４と、第１の
弁座面４に接続され所定角度Ｃ傾斜角が増加した第２の
弁座面５を有している。This relief valve mounting part 2 has a flange part 8 side surface 14
It has a first valve seat surface 4 which is inclined at a predetermined angle B relative to the valve seat surface, and a second valve seat surface 5 which is connected to the first valve seat surface 4 and whose inclination angle is increased by a predetermined angle C.
第３図は、切削加工に用いるツール３の底面図である。FIG. 3 is a bottom view of the tool 3 used for cutting.
ツール３は本実施例においては、４枚の切削刃を有する
エンドミルで、刃先１５と刃先１６、刃先１６と刃先１
７、刃先１７と刃先１８、刃先１８と刃先１５は、各々
垂直に設置されている。In this embodiment, the tool 3 is an end mill having four cutting blades, including a cutting edge 15, a cutting edge 16, a cutting edge 16, and a cutting edge 1.
7. The cutting edge 17 and the cutting edge 18, and the cutting edge 18 and the cutting edge 15 are each installed vertically.
ツール３は、回転軸６を中心に回転し、２点鎖線で示さ
れる円内が切削範囲である。The tool 3 rotates around a rotating shaft 6, and the cutting range is within a circle indicated by a two-dot chain line.
次に、前述のツール３を用いたクラッチピストン１の製
造方法を説明する。Next, a method for manufacturing the clutch piston 1 using the aforementioned tool 3 will be explained.
まず、被削クラッチピストンをクランプ治具で保持し、
位置決めし、フランジ部８側面１４にツール３を押し付
ける。（図示せず。）このツール３の回転軸６は、第１
の弁座面４に対し、ツール３の送り方向１０に仲Φ手〒
所定角度α傾斜させである。First, hold the clutch piston to be cut with a clamp jig,
Position it and press the tool 3 against the side surface 14 of the flange portion 8. (Not shown.) The rotation axis 6 of this tool 3 is the first
With respect to the valve seat surface 4 of the tool 3 in the feed direction 10,
It is tilted at a predetermined angle α.
続いて、リリーフバルブ装着部２の第１の弁座面を切削
加工中の状態を表す第４図及び第５図に示す如く、前述
のツール３の回転軸６の傾斜角αを保ちながら、ツール
３を、ツール３の送り方向１０に移動させ、第１弁座面
４を切削加工する。Next, as shown in FIGS. 4 and 5 showing the state in which the first valve seat surface of the relief valve mounting part 2 is being cut, while maintaining the inclination angle α of the rotating shaft 6 of the tool 3, The tool 3 is moved in the feeding direction 10 of the tool 3 to cut the first valve seat surface 4.
この時、切削加工の施された第１の弁座面４には、ツー
ル３の送り方向と逆の刃端２１は接していない。従って
、既に切削加工が施された加工面に再び不要な切削を施
すことがないので、加工面が粗くなることなく、第１の
弁座面４が滑らかに切削加工されることになる。At this time, the blade end 21 of the tool 3, which is opposite to the feeding direction, is not in contact with the first valve seat surface 4 that has been subjected to the cutting process. Therefore, since unnecessary cutting is not performed again on a machined surface that has already been machined, the first valve seat surface 4 can be smoothly machined without making the machined surface rough.
第１の弁座面４の切削加工の施行後、次工程において、
第１の弁座面４と同様の方法で、第２の弁座面５を滑ら
かに切削加工し、更に次工程で座繰部２２を切削加工す
る。After cutting the first valve seat surface 4, in the next step,
The second valve seat surface 5 is cut smoothly in the same manner as the first valve seat surface 4, and the counterbore portion 22 is further cut in the next step.
従って、各々の加工面に対し、−回の切削工程のみで、
リリーフバルブ装着部２の第１の弁座面４と第２の弁座
面５を滑らかに形成できるので、半製品毎に、第１の弁
座面４及び第２の弁座面５の加工面の粗さ及び各々の角
度Ｂ及びＣに適合する様、切削代とツール３の送り角度
の微調整を必要とする所途後工程による修正の必要がな
（、その結果、クラッチピストンの製造を機械流れ作業
により行うことが可能である。Therefore, for each machined surface, only -times of cutting process is required.
Since the first valve seat surface 4 and the second valve seat surface 5 of the relief valve mounting part 2 can be formed smoothly, the first valve seat surface 4 and the second valve seat surface 5 are processed for each semi-finished product. There is no need for post-process corrections that require fine adjustment of the cutting allowance and feed angle of the tool 3 to suit the surface roughness and angles B and C (as a result, the production of the clutch piston is It is possible to perform this process using mechanical assembly lines.
＝効 果＝
以上のように、本発明によれば、ツールの回転軸を、ツ
ールの送り方向に傾斜させて、ツールで第１の弁座面及
び第２の弁座面を切削加工するので、切削加工の施され
た弁座面には、ツールの送り方向と逆の刃端は接してお
らず、既に切削加工が施された加工面を再び切削するこ
とはない為、加工面が粗くなることはなく、従って、各
々の加工面に対し、−回の切削加工のみで、リリーフバ
ルブ装着部の第１の弁座面及び第２の弁座面を滑らかに
形成できるので、半製品毎に、第１の弁座面及び第２の
弁座面の加工面の粗さ及びフランジ部側面と第１の弁座
面との角度及び第１の弁座面と第２の弁座面との相対角
度に適合する様、切削代とツールの送り角度の微調整を
必要とする別途後工程による修正の必要がなく、その結
果、クラッチピストンの製造を機械流れ作業により行う
高能率の生産が可能である。=Effects= As described above, according to the present invention, the rotation axis of the tool is tilted in the feeding direction of the tool, and the first valve seat surface and the second valve seat surface are cut with the tool. , the edge of the blade opposite to the feeding direction of the tool does not touch the machined valve seat surface, and the machined surface that has already been machined is not cut again, so the machined surface is rough. Therefore, the first valve seat surface and the second valve seat surface of the relief valve mounting part can be smoothly formed by only -times of cutting on each machined surface, so that each semi-finished product can be smoothly formed. The roughness of the processed surfaces of the first valve seat surface and the second valve seat surface, the angle between the flange part side surface and the first valve seat surface, and the angle between the first valve seat surface and the second valve seat surface. There is no need for a separate post-process correction that requires fine adjustment of the cutting allowance and the feed angle of the tool to match the relative angle of the It is possible.
第１図は、クラッチピストンの完成品の平面図、第２図
は、第１図のＡ−Ａ線断面を表わす拡大断面図である。
第３図はツールの底面図である。第４図は、本発明の実
施例によるクラッチピストンの製造方法を表わす第２図
と同部の拡大断面図、第５図は、第４図り部の拡大図で
ある。第６図は、従来のクラッチピストンの製造方法を
表わす第２図と同部の拡大断面図、第７図は、第６図Ｅ
部の拡大図である。
（記号の説明）
１・・・クラッチピストン。
２・・・リリーフバルブ装着部。
３・・・ツール。 ４・・・第１の弁座面。
５・・・第２の弁座面。 ６・・・回転軸。
８・・・フランジ部。 １０・・・送り方向。
１４・・・側面。FIG. 1 is a plan view of a completed clutch piston, and FIG. 2 is an enlarged sectional view taken along line A--A in FIG. 1. FIG. 3 is a bottom view of the tool. FIG. 4 is an enlarged sectional view of the same part as FIG. 2, showing a method of manufacturing a clutch piston according to an embodiment of the present invention, and FIG. 5 is an enlarged view of the fourth cutout part. FIG. 6 is an enlarged sectional view of the same part as FIG. 2, showing a conventional clutch piston manufacturing method, and FIG.
FIG. (Explanation of symbols) 1...Clutch piston. 2...Relief valve mounting part. 3...Tools. 4...First valve seat surface. 5...Second valve seat surface. 6...Rotation axis. 8...Flange part. 10... Feeding direction. 14...side.
Claims (1)
て傾斜した第１の弁座面４と、該第１の弁座面４に接続
され一段と傾斜角が増加した第２の弁座面５を有する略
円盤状のクラッチピストン１の製造方法において、ツー
ル３の回転軸６を、前記ツール３の送り方向１０に傾斜
させて、前記ツール３で前記第１の弁座面４及び前記第
２の弁座面５を切削加工することを特徴とするクラッチ
ピストンの製造方法。The relief valve mounting portion 2 has a first valve seat surface 4 that is inclined with respect to the side surface 14 of the flange portion 8, and a second valve seat surface 5 that is connected to the first valve seat surface 4 and whose inclination angle has further increased. In the method for manufacturing a substantially disc-shaped clutch piston 1, the rotating shaft 6 of the tool 3 is inclined in the feeding direction 10 of the tool 3, and the tool 3 is used to control the first valve seat surface 4 and the second valve seat surface 4. A method for manufacturing a clutch piston, which comprises cutting a valve seat surface 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16502590A JPH0457611A (en) | 1990-06-22 | 1990-06-22 | Manufacture of clutch piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16502590A JPH0457611A (en) | 1990-06-22 | 1990-06-22 | Manufacture of clutch piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0457611A true JPH0457611A (en) | 1992-02-25 |
Family
ID=15804416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16502590A Pending JPH0457611A (en) | 1990-06-22 | 1990-06-22 | Manufacture of clutch piston |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0457611A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT513568A3 (en) * | 2012-10-18 | 2016-04-15 | Vdeh Betriebsforschungsinstitut Gmbh | Tensile strength soft-sensor for positive-locking and stretch-bending machines |
-
1990
- 1990-06-22 JP JP16502590A patent/JPH0457611A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT513568A3 (en) * | 2012-10-18 | 2016-04-15 | Vdeh Betriebsforschungsinstitut Gmbh | Tensile strength soft-sensor for positive-locking and stretch-bending machines |
| AT513568B1 (en) * | 2012-10-18 | 2016-04-15 | Vdeh Betriebsforschungsinstitut Gmbh | Tensile strength soft-sensor for positive-locking and stretch-bending machines |
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