JPH01303309A - Manufacture of crank shaft - Google Patents
Manufacture of crank shaftInfo
- Publication number
- JPH01303309A JPH01303309A JP13191088A JP13191088A JPH01303309A JP H01303309 A JPH01303309 A JP H01303309A JP 13191088 A JP13191088 A JP 13191088A JP 13191088 A JP13191088 A JP 13191088A JP H01303309 A JPH01303309 A JP H01303309A
- Authority
- JP
- Japan
- Prior art keywords
- pin
- shaft
- web
- bush
- flywheel
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000003754 machining Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 6
- 238000005496 tempering Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 12
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000005242 forging Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 241001589086 Bellapiscis medius Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明はエンジンのクランクシャフトの製造方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing an engine crankshaft.
（従来の技術）
従来のエンジンのクランクシャフトの製造方法は第３図
クランクシャフトのプレス工程に示す様に、角柱の素材
を誘導力と熱工程で加熱して、レデュースロール工程で
体積配分を行い。(Prior art) As shown in the crankshaft pressing process in Figure 3, the conventional method for manufacturing engine crankshafts involves heating a prismatic material using induction force and a thermal process, and then distributing the volume using a reduce roll process. .
予備成形プレス工程で素材の予備成形を行い。The material is preformed in the preform press process.
メインプレス工程で成形を行い、パリ板プレス工程でパ
リ抜きを行い、ツイスタ−工程で素材をねじり変形させ
てピン部の位相合わせを行った鍛造素材を焼入焼戻した
後１機械加工を行って製造していた。Forming is performed in the main press process, deburr is removed in the paris plate press process, and the material is twisted and deformed in the twister process to align the phases of the pin parts. After quenching and tempering the forged material, 1 machining is performed. was manufacturing.
（発明が解決しようとする課題）
従来のエンジンのクランクシャフトの製造方法に於いて
は熱間鍛造を行うため加熱のエネルギーを多量に要する
と共に予Ｏｊ＃成形、成形と鍛造工程が多く史に鍛造後
の機械加工代が大きいという問題があった。(Problem to be solved by the invention) In the conventional manufacturing method of engine crankshafts, a large amount of heating energy is required due to hot forging, and there are many pre-Oj # forming, forming and forging processes, and in the history of forging. There was a problem in that the subsequent machining cost was large.
（課題を解決するための手段及び作用）本発明は上記の
課題を解決するためシャフト部、ブツシュ部、フライホ
イール部、ピン部。(Means and operations for solving the problems) In order to solve the above problems, the present invention provides a shaft portion, a bushing portion, a flywheel portion, and a pin portion.
ウェブ部より構成されるエンジンのクランクシャフトの
製造方法に於いて、シャフト部、ブッシュ部、フライホ
イール部、ピン部、ウェブ部を各々分割して製造し、該
シュフト部、ブツシュ部、フライホイール部、ピン部、
ウェブ部を溶接して一体とすると共に焼入焼戻し後、ｉ
Ｒ械加工を行うことを特徴とするエンジンのクランクシ
ャフトの製造方法とした。In a method for manufacturing an engine crankshaft composed of a web portion, the shaft portion, bushing portion, flywheel portion, pin portion, and web portion are manufactured separately, and the shaft portion, bushing portion, and flywheel portion are manufactured separately. , pin part,
After welding the web portions into one piece and quenching and tempering, i
A method for manufacturing an engine crankshaft is characterized by R machining.
（実施例）
本発明の一実施例を第１図を参考にして説明する。第１
図はエンジンのクランクシャフトをシャフト部１．ブッ
シェ部２．フライホイール部３．ピン部４．ウェブ部５
．フライホイール取付ボス６に分割してそれぞれ所定の
形状に加工したものを示すものである。(Example) An example of the present invention will be described with reference to FIG. 1st
The figure shows the engine crankshaft at shaft part 1. Bushe part 2. Flywheel part 3. Pin part 4. Web part 5
．． This figure shows a flywheel mounting boss 6 which is divided and processed into a predetermined shape.
シャフト部１とブッンユ部２．ピン部４．ウヱブ部５．
フライホイール取付ボス６はそれぞれＳＣＭａ材の丸棒
を切断して製造したものである。又フライホイール部３
．ウェブ部５はそれぞれＳ ＣＭ ａ材板よりガス切断
により製造した。Shaft part 1 and bunyu part 2. Pin part 4. Web part 5.
The flywheel mounting bosses 6 are each manufactured by cutting a round bar of SCMa material. Also flywheel part 3
．． The web portions 5 were each manufactured from a SCM a material plate by gas cutting.
次に第２図を参考にしてフライホイール部３とピン部４
を例にしてフラッシュバット溶接を行った例について説
明する。Next, referring to Figure 2, flywheel part 3 and pin part 4
An example of flash butt welding will be explained using as an example.
コイルから誘導された電流は、電極８ａから。The current induced from the coil is from the electrode 8a.
ピン部４に流れ１電極８ｂにクランプされているフライ
ホイール部３と軽く接触させることにより、ピン部４と
フライホイール部３の当接面アークによるショート、フ
ラッシュを編返し表面が溶融する。このあと２つを押付
は接合させる。このときに迎電する電流密度は２０Ａ／
ｍｍ”とし、アプセット荷重は１０ Ｋ ｇ ７ｍｍ２
とした。By bringing the pin portion 4 into light contact with the flywheel portion 3 clamped to the first electrode 8b, the short and flash caused by the contact surface arc between the pin portion 4 and the flywheel portion 3 will be reversed and the surface will be melted. After this, the two are pressed together. The current density received at this time is 20A/
mm”, and the upset load is 10 Kg 7mm2
And so.
以上の様にして溶接一体としたエンジンのクランクシャ
ツ１−の素材を８５０°Ｃに２時間加熱して油焼入を行
い６００ ”Ｃで４時間焼戻し後。The material of the engine crank shirt 1-, which was integrally welded as described above, was heated to 850°C for 2 hours, oil quenched, and then tempered at 600''C for 4 hours.
水冷した。Water cooled.
次に、シャフト部１．ブツシュ部２．ピン部４、フライ
ホイール取付ボス６の機械加工を行ってエンジンのクラ
ンクシャフトを製造する。Next, shaft portion 1. Bush part 2. The pin portion 4 and flywheel attachment boss 6 are machined to manufacture the engine crankshaft.
（発明の効果） 本発明によれば、シャフト部、ブツシュ部。(Effect of the invention) According to the invention, the shaft part and the bush part.
フライホイール部、ピン部、ウェブ部に分割して製造し
て溶接により一体として製造するので鍛造を行う必要が
なく熱エネルギー鍛造型が不要であり！￥＆械加工代が
少なくなった。Since the flywheel part, pin part, and web part are manufactured separately and then manufactured as one piece by welding, there is no need for forging and no need for a thermal energy forging die! ￥ and machining charges have been reduced.
第１図はクランクシャフトを分割してそれぞれの形状に
加工したものを示す図、第２図はフラッシュバント溶接
を行った例を示す図、第３図はクランクシャフトのプレ
ス工程を示す図である。
１・・・シャフト部 ２・・・ブツシュ部３・・・
フライホイール部
４・・・ピン部 ５・・・ウェブ部特許出願人
株式会社小松製作所
代理人 （弁理士）岡 １）和 喜
第２図Figure 1 is a diagram showing a crankshaft divided and processed into different shapes, Figure 2 is a diagram showing an example of flash bunt welding, and Figure 3 is a diagram showing the crankshaft pressing process. . 1... Shaft part 2... Bush part 3...
Flywheel part 4...Pin part 5...Web part Patent applicant Komatsu Ltd. Agent (patent attorney) Oka 1) Wa Ki Figure 2
Claims (1)
ウェブ部より構成されるエンジンのクランクシャフトの
製造方法に於いて、シャフト部、ブッシュ部、フライホ
ィール部、ピン部、ウェブ部を各々分割して製造し、該
シャフト部、ブッシュ部、フライホィール部、ピン部、
ウェブ部を溶接して一体とすると共に焼入焼戻し後機械
加工を行うことを特徴とするエンジンのクランクシャフ
トの製造方法。Shaft part, bush part, flywheel part, pin part,
In a method of manufacturing an engine crankshaft that is composed of a web part, the shaft part, bush part, flywheel part, pin part, and web part are manufactured separately, and the shaft part, bush part, and flywheel part are manufactured separately. , pin part,
A method for manufacturing an engine crankshaft, which comprises welding the web portions into one piece and performing machining after quenching and tempering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13191088A JPH01303309A (en) | 1988-05-30 | 1988-05-30 | Manufacture of crank shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13191088A JPH01303309A (en) | 1988-05-30 | 1988-05-30 | Manufacture of crank shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01303309A true JPH01303309A (en) | 1989-12-07 |
Family
ID=15069038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13191088A Pending JPH01303309A (en) | 1988-05-30 | 1988-05-30 | Manufacture of crank shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01303309A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303468A (en) * | 1991-12-02 | 1994-04-19 | Caterpillar Inc. | Method of manufacturing a crankshaft |
| JP2009167974A (en) * | 2008-01-18 | 2009-07-30 | Toyota Motor Corp | Internal combustion engine and method for manufacturing the same |
| WO2013161035A1 (en) * | 2012-04-26 | 2013-10-31 | 本田技研工業株式会社 | Crankshaft and manufacturing method for same |
-
1988
- 1988-05-30 JP JP13191088A patent/JPH01303309A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303468A (en) * | 1991-12-02 | 1994-04-19 | Caterpillar Inc. | Method of manufacturing a crankshaft |
| JP2009167974A (en) * | 2008-01-18 | 2009-07-30 | Toyota Motor Corp | Internal combustion engine and method for manufacturing the same |
| WO2013161035A1 (en) * | 2012-04-26 | 2013-10-31 | 本田技研工業株式会社 | Crankshaft and manufacturing method for same |
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