JPS6157121B2 - - Google Patents
Info
- Publication number
- JPS6157121B2 JPS6157121B2 JP53156168A JP15616878A JPS6157121B2 JP S6157121 B2 JPS6157121 B2 JP S6157121B2 JP 53156168 A JP53156168 A JP 53156168A JP 15616878 A JP15616878 A JP 15616878A JP S6157121 B2 JPS6157121 B2 JP S6157121B2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- pressing member
- hole
- processing
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 claims description 12
- 238000003754 machining Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Jigs For Machine Tools (AREA)
- Drilling And Boring (AREA)
- Turning (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
【発明の詳細な説明】
本発明はエンジンのシリンダブロツクにおける
シリンダの加工方法に関するもので、詳しくは、
シリンダヘツドを締付けた使用状態においてシリ
ンダ内周面が真円となるようなシリンダの加工方
法を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for machining a cylinder in an engine cylinder block.
The present invention provides a method for processing a cylinder such that the inner circumferential surface of the cylinder becomes a perfect circle when the cylinder head is tightened.
従来、かかる方法として、シリンダ径より大き
い加工用孔を有し、シリンダヘツドに近似した剛
性のダミーヘツドを装着締付し、加工用孔よりシ
リンダ内周面の加工を行うことが提案されてい
る。（特公昭51−25523）
しかしながら、前記方法は、シリンダブロツク
のシリンダの加前にダミーヘツドをいちいち締付
ボルトによつてシリンダブロツクに締付装着する
必要があるとともに、シリンダの加工後に締付ボ
ルトを抜き取る必要があり生産性が悪く自動化が
難しいと同時に、シリンダヘツド締付によるシリ
ンダ内周面の変形を再現できないという問題を有
する。即ち、一般に、シリンダヘツドを締付けた
使用状態におけるシリンダブロツクのシリンダヘ
ツド締付面にかかる応力は、シリンダ周辺部にか
かる応力が600Kg／cm2以上であるのに対して、そ
の他の部分の応力は200Kg／cm2以下である。これ
は、シリンダブロツクとシリンダヘツドの間に介
装されるシリンダヘツドガスケツトによるもので
あつて、該ガスケツトのシリンダの周辺部にはシ
リンダ内の高圧ガスをシールするためにシリンダ
ボアグロメツトを備えているためである。よつ
て、シリンダの変形を引き起す支配的要因は、シ
リンダヘツドガスケツトにおけるシリンダボアグ
ロメツト部分にかかる圧力であつて、前記ダミー
ヘツドによる方法ではシリンダブロツクに一様な
応力しかかけられず、シリンダの変形を再現でき
ないものである。 Conventionally, as such a method, it has been proposed that a dummy head having a machining hole larger than the cylinder diameter and having a rigidity similar to the cylinder head is mounted and tightened, and the inner circumferential surface of the cylinder is machined through the machining hole. (Japanese Patent Publication No. 51-25523) However, with the above method, it is necessary to tighten and attach the dummy head to the cylinder block one by one using the tightening bolts before the cylinder is installed on the cylinder block, and the tightening bolts must be tightened after the cylinder is machined. It is necessary to remove the cylinder, resulting in poor productivity and difficulty in automation. At the same time, there is a problem in that the deformation of the cylinder inner peripheral surface due to tightening of the cylinder head cannot be reproduced. In other words, in general, the stress applied to the cylinder head clamping surface of the cylinder block when the cylinder head is tightened is 600 kg/cm 2 or more around the cylinder, while the stress in other parts is 600 kg/cm 2 or more. 200Kg/ cm2 or less. This is due to a cylinder head gasket interposed between the cylinder block and the cylinder head, and a cylinder bore grommet is provided around the cylinder of the gasket to seal the high pressure gas inside the cylinder. This is because there is. Therefore, the dominant factor that causes deformation of the cylinder is the pressure applied to the cylinder bore grommet portion of the cylinder head gasket, and in the method using the dummy head, only a uniform stress can be applied to the cylinder block, causing deformation of the cylinder. It cannot be reproduced.
本発明は、上記問題に鑑みなされたものであつ
て、シリンダより若干大きな加工用孔を有し、か
つ、起動手段と、該手段に連結され上記加工用孔
周辺に突出部を有する押圧部材とから構成された
押圧器により、シリンダヘツドガスケツトのシリ
ンダボアグロメツトが位置する部分である、シリ
ンダブロツクのシリンダ周辺部のみを押圧し、加
工用孔よりシリンダ内周面の加工を行うことを特
徴とするものである。 The present invention has been made in view of the above-mentioned problem, and includes a processing hole slightly larger than a cylinder, a starting means, and a pressing member connected to the means and having a protrusion around the processing hole. The pressing device is configured to press only the peripheral part of the cylinder of the cylinder block, which is the part where the cylinder bore grommet of the cylinder head gasket is located, and process the inner circumferential surface of the cylinder through the processing hole. It is something to do.
以下、実施例を示す図面に従つて本発明を詳説
する。 Hereinafter, the present invention will be explained in detail with reference to the drawings showing examples.
第１図及び第１図の―断面である第２図に
おいて、１はシリンダ２を有するシリンダブロツ
クであつて、ウオータジヤケツト３、プツシユロ
ツド穴４、シリンダヘツド締付用ボルト５を備え
ている。該シリンダブロツク１は、台６上に位置
決めされた後、押圧器７により上方からシリンダ
周辺部を押圧され、押圧された状態でボリングま
たはホーニング等のシリンダ内周面の加工を行な
われる。押圧器７は、油圧ポンプ８等からなる起
動力手段と該手段に連結された押圧部材９によつ
て構成される。押圧部材９は、シリンダ２より若
干大きな加工用孔９ａと、該加工用孔９の周辺の
突出部９ｂを備えており、該突出部９ｂはシリン
ダ２の周辺部分であつて、エンジン組立時シリン
ダヘツドとの間に介装されるシリンダヘツドガス
ケツトのシリンダボアグロメツトが位置する部分
とその周辺部を押圧する。押圧部材９によるシリ
ンダ２周辺部押圧力は、600Kg／cm2以上の面圧で
行うことが好ましい。押圧器７の押圧部材９によ
り、シリンダ周辺部を押圧されたシリンダブロツ
ク１は、押圧された状態で押圧部材９の加工用孔
９ａから加圧機具のツール（図示せず）を入れ
て、シリンダ２の内周面２ａを加工する。シリン
ダ内周面２ａの加工としては通常ボーリングとホ
ーニングが行なわれているが、押圧器７により工
程は最終工程のホーニングの段階で行うことが好
ましい。この場合、シリンダブロツク加工ライン
のホーニング工程部に押圧器７を設置すればよ
い。押圧部材９の加工用孔９ａの９径は、加工機
器のツールがシリンダ内周面２ａの加工を行うの
に必要な径であつて、加工用孔９ａ周辺の突出部
９ｂが、シリンダヘツドガスケツトのシリンダボ
アグロメツト部分に対応する位置を押圧できるよ
うに選定する。加工に必要な加圧用孔９aaの径
が、ボアグロメツトの内径よりも大きくなるとき
は、加工に必要な最小の径口に選定すればよい。 In FIG. 1 and FIG. 2, which is a cross-sectional view of FIG. 1, 1 is a cylinder block having a cylinder 2, and is provided with a water jacket 3, a push rod hole 4, and a bolt 5 for tightening the cylinder head. After the cylinder block 1 is positioned on a table 6, the cylinder periphery is pressed from above by a presser 7, and while the cylinder block 1 is being pressed, processing such as boring or honing is performed on the inner peripheral surface of the cylinder. The presser 7 is constituted by a starting force means such as a hydraulic pump 8 and a pressing member 9 connected to the means. The pressing member 9 includes a machining hole 9a that is slightly larger than the cylinder 2, and a protrusion 9b around the machining hole 9. The cylinder head gasket interposed between the cylinder head and the cylinder head is pressed against the portion where the cylinder bore grommet is located and its surrounding area. It is preferable that the pressing force applied to the peripheral portion of the cylinder 2 by the pressing member 9 be a surface pressure of 600 kg/cm 2 or more. The cylinder block 1, whose peripheral portion has been pressed by the pressing member 9 of the pressing device 7, is pressed by inserting a tool (not shown) of the pressing device into the machining hole 9a of the pressing member 9, and presses the cylinder block 1 into the cylinder. The inner circumferential surface 2a of No. 2 is processed. Boring and honing are usually carried out to process the cylinder inner circumferential surface 2a, but it is preferable to carry out the process using the presser 7 at the final honing stage. In this case, the presser 7 may be installed in the honing process section of the cylinder block processing line. The diameter 9 of the processing hole 9a of the pressing member 9 is a diameter necessary for the tool of the processing equipment to process the cylinder inner circumferential surface 2a, and the protrusion 9b around the processing hole 9a is the diameter that is necessary for processing the cylinder inner circumferential surface 2a. Select a position that corresponds to the cylinder bore grommet part of the butt so that it can be pressed. When the diameter of the pressurizing hole 9aa required for machining is larger than the inner diameter of the bore grommet, the minimum diameter necessary for machining may be selected.
第３図は、押圧部材の他の実施例を示すもので
あつて、押圧部材９の突出部９ｂは隣接するシリ
ンダを包含した周辺部分を押圧するように構成さ
れる。このような形状の押圧部材では、シリンダ
間のシリンダボアグロメツト部分を押圧できない
という欠点を持つが、前記実施例に近似した変形
を再現できるものである。なお、突出部９ｂの突
起部９ｂは、副燃焼室を備えているエンジンの副
燃焼室位置に対応する部分を押圧するものであつ
て、該部分にもシリンダヘツドガスケツトのガス
シールのためのグロメツトがシリンダボアグロメ
ツトに連続して設けられるためである。 FIG. 3 shows another embodiment of the pressing member, in which the protruding portion 9b of the pressing member 9 is configured to press a peripheral portion including an adjacent cylinder. Although the pressing member having such a shape has the disadvantage that it cannot press the cylinder bore grommet portion between the cylinders, it can reproduce a deformation similar to that of the above embodiment. Note that the protruding portion 9b of the protruding portion 9b presses a portion corresponding to the sub-combustion chamber position of the engine equipped with the sub-combustion chamber, and this portion also has a part for gas sealing of the cylinder head gasket. This is because the grommet is provided continuously to the cylinder bore grommet.
以上のように、本発明によれば、押圧部材を備
えた押圧器をシリンダブロツクの加工機具と併設
するだけで、シリンダブロツクのシリンダ内周面
の加工を自動化できるとともに、シリンダ使用時
真円となるシリンダが、簡単に得ることができる
ものである。 As described above, according to the present invention, by simply installing a presser equipped with a pressing member together with a cylinder block processing tool, it is possible to automate the processing of the inner circumferential surface of the cylinder block, and to ensure that the cylinder is perfectly round when in use. This cylinder can be easily obtained.
第１図は本発明に係る方法の説明図、第２図は
第１図の―断面図、第３図は他の実施例を示
す断面図である。
１：シリンダブロツク、２：シリンダ、７：押
圧器、９：押圧部材、９ａ：加工用孔、９ｂ：突
出部。
FIG. 1 is an explanatory diagram of the method according to the present invention, FIG. 2 is a cross-sectional view taken from FIG. 1, and FIG. 3 is a cross-sectional view showing another embodiment. 1: Cylinder block, 2: Cylinder, 7: Presser, 9: Pressing member, 9a: Processing hole, 9b: Projecting part.
Claims (1)
つ、起動手段と、該手段に連結され上記加工用孔
周辺に突出部を有する押圧部材とから構成された
押圧器により、シリンダブロツクのシリンダ周辺
部のみを押圧し、加工用孔よりシリンダ内周面の
加工を行うことを特徴とするエンジンシリンダの
加工方法。1. A presser having a processing hole slightly larger than the cylinder and comprising a starting means and a pressing member connected to the means and having a protrusion around the processing hole, presses the peripheral part of the cylinder of the cylinder block. A method for machining an engine cylinder, characterized in that the inner circumferential surface of the cylinder is machined through a machining hole by pressing only the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15616878A JPS5583509A (en) | 1978-12-14 | 1978-12-14 | Machining method of engine cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15616878A JPS5583509A (en) | 1978-12-14 | 1978-12-14 | Machining method of engine cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5583509A JPS5583509A (en) | 1980-06-24 |
| JPS6157121B2 true JPS6157121B2 (en) | 1986-12-05 |
Family
ID=15621828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15616878A Granted JPS5583509A (en) | 1978-12-14 | 1978-12-14 | Machining method of engine cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5583509A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2580133B2 (en) * | 1986-10-01 | 1997-02-12 | ヤマハ発動機株式会社 | Forced air-cooled vertical engine |
| DE112007000560B4 (en) * | 2006-03-13 | 2015-02-05 | Honda Motor Co., Ltd. | Tool head, machine tool and drilling method for drilling a cylinder block using the machine tool |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2658524B2 (en) * | 1990-07-27 | 1997-09-30 | 日産自動車株式会社 | Cylinder head cam hole machining method |
| JP6101422B2 (en) * | 2011-12-21 | 2017-03-22 | 日野自動車株式会社 | Cylinder liner processing method for air compressor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5125523A (en) * | 1974-08-27 | 1976-03-02 | Japan Synthetic Rubber Co Ltd | GOMUASUFUARUTOSOSEIBUTSU |
-
1978
- 1978-12-14 JP JP15616878A patent/JPS5583509A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5125523A (en) * | 1974-08-27 | 1976-03-02 | Japan Synthetic Rubber Co Ltd | GOMUASUFUARUTOSOSEIBUTSU |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2580133B2 (en) * | 1986-10-01 | 1997-02-12 | ヤマハ発動機株式会社 | Forced air-cooled vertical engine |
| DE112007000560B4 (en) * | 2006-03-13 | 2015-02-05 | Honda Motor Co., Ltd. | Tool head, machine tool and drilling method for drilling a cylinder block using the machine tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5583509A (en) | 1980-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6157121B2 (en) | ||
| SE8103669L (en) | TENSION HOUSING FOR TOOLS OR TOOLS | |
| KR20190047791A (en) | Tool clamps for machine tools | |
| US20220298997A1 (en) | Injector cup for engines apparatus and methods of use | |
| CN219987357U (en) | Annular gasket repair clamp | |
| JPS597448A (en) | Working method of cylinder of engine | |
| CA2710866C (en) | An arrangement for attaching a ship rudder to a rudder shaft, a rudder shaft, a ship rudder and a method for disassembly of a ship ship rudder from a rudder shaft | |
| FI77516B (en) | ARRANGEMANG FOER TILLSPAENNING AV FLAETADE TAETNINGAR. | |
| JP2005199378A (en) | Method of honing inner peripheral surface of cylinder bore and device of honing inner peripheral surface of cylinder bore | |
| SU1416228A1 (en) | Method of assembling dies | |
| CN113385850B (en) | Be used for starter exhaust cone welded auxiliary device | |
| CN110695737A (en) | Clamp for processing engine intake and exhaust locking plate | |
| CN214322635U (en) | Clamp for machining flywheel housing | |
| JPH0227084B2 (en) | ||
| JPH0326460A (en) | Method of finishing internal peripheral surface of cylinder | |
| CN218503397U (en) | New energy automobile transmission gear machining clamp that punches | |
| CN212683829U (en) | Disassembling tool for inner gear ring of transfer case | |
| CN217914059U (en) | Clamp for machining inner cone assembly | |
| CN107791062A (en) | A kind of bipyramid expander clamp for machining and handling method | |
| JPH09324793A (en) | Shaft seal part structure | |
| JPS642885B2 (en) | ||
| SU1484538A1 (en) | Method and apparatus for press-fitting cylindrical sleeves into holes of base members | |
| KR19980048876A (en) | Automotive muffler flange processing jig | |
| CA2259800C (en) | Core plug formation die apparatus and method of manufacturing a core plug | |
| JPH06213240A (en) | Builtup flange type shaft jointing method and jig thereof |