JP3923162B2 - Manufacturing method of deformed tube for drive shaft - Google Patents
Manufacturing method of deformed tube for drive shaft Download PDFInfo
- Publication number
- JP3923162B2 JP3923162B2 JP00569898A JP569898A JP3923162B2 JP 3923162 B2 JP3923162 B2 JP 3923162B2 JP 00569898 A JP00569898 A JP 00569898A JP 569898 A JP569898 A JP 569898A JP 3923162 B2 JP3923162 B2 JP 3923162B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- deformed
- rolling
- manufacturing
- deformed tube
- 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 - Fee Related
Links
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【０００１】
【発明の属する技術分野】
本発明は、互いに摺動可能かつ相対回転不能に嵌合する雌チューブ及び雄チューブよりなる駆動軸用の異形チューブを製造するため、互いに嵌着した内側及び外側の２個の金属管内に雄チューブの内面の断面形状に対応する断面形状を有する心金を嵌合し、前記雌チューブの外面に対応するダイス転造面を有する転造ダイスによって金属管を異形チューブに転造する異形チューブ製造方法に関するものである。
【０００２】
【従来の技術】
このような異形チューブの製造方法は、本件出願人の先願である特願平３−２４８７３３号に記載されている。
【０００３】
【発明が解決しようとする課題】
しかし、従来のこの方法では、異形チューブ転造後の雄チューブ及び雌チューブとの間の摺動を可能にするため、転造成形前に内側金属管の外面及び／又は外側金属管の内面にナイロン等によるコーティングや、苛性処理等により表面処理を行っておく必要があり、これらの表面処理は手間とコストがかかるものであった。
【０００４】
従って、本発明の目的は、このような転造成形前に金属管の内面又は外面に何ら表面処理を行う必要のない異形チューブ製造方法を得るにある。
【０００５】
【課題を解決するための手段】
この目的を達成するため、本発明異形チューブ製造方法は、前記内側金属管の周囲に薄膜フィルム層を所定厚さで巻き付けてから外側金属管を嵌合し、前記心金及び前記転造ダイスによって異形チューブを転造成形し、この転造成形後に薬品等で前記薄膜フィルム層を除去することを特徴とする。
【０００６】
本発明方法によれば、転造成形後に薄膜フィルム層を除去することによって雄チューブと雌チューブとの間に所定の最小限の嵌合隙間が確保される。
【０００７】
【発明の実施の形態】
次に、図面につき本発明の好適な実施の形態を説明する。
【０００８】
本発明異形チューブ製造方法は、互いに摺動可能かつ相対回転不能に嵌合する雌チューブ及び雄チューブよりなる駆動軸用の異形チューブを製造するため、転造に先立って、内側金属管１の周囲に薄膜フィルム層２を所定厚さとなるよう複数回巻き付けてから又は所定厚さの薄膜フィルム層２を巻き付けてから外側金属管３を嵌合する（図１（ａ）参照）。
【０００９】
この後、雄チューブの内面の断面形状に対応する断面形状を有する心金４及び雌チューブの外面に対応するダイス転造面を有する転造ダイス５によって転造を行い（図１（ｂ）及び（ｃ）参照）、雄チューブ１ａ及び雌チューブ３ａよりなる異形チューブ６を成形する（図１（ｄ）参照）。
【００１０】
この異形チューブ６の転造成形後に薬品等で薄膜フィルム層２を除去する。この薄膜フィルム層２の除去によって、雄チューブ１ａと雌チューブ３ａとの間に相対摺動に必要な最小限の嵌合隙間が確保される。
【００１１】
【発明の効果】
本発明異形チューブ製造方法によれば、転造成形前に内側金属管の外面及び／又は外側金属管の内面にナイロン等によるコーティングや、苛性処理等により表面処理を行う必要がなく、簡単な作業の薄膜フィルム層の巻き付けだけで、転造成形後の必要最小限の嵌合隙間が得られるため、製造時間を短縮し、製造コストを低減することができるという効果が得られる。
【図面の簡単な説明】
【図１】（ａ），（ｂ），（ｃ）及び（ｄ）は、それぞれ本発明による異形チューブ製造方法の実施の各段階を示す説明図である。
【符号の説明】
１ 内側金属管
1a 雄チューブ
２ 薄膜フィルム層
３ 外側金属管
3a 雌チューブ
４ 心金
５ 転造ダイス
６ 異形チューブ[0001]
BACKGROUND OF THE INVENTION
In order to manufacture a deformed tube for a drive shaft composed of a female tube and a male tube that are slidable and non-rotatably fitted to each other, the present invention provides a male tube in two inner and outer metal tubes fitted to each other. A deformed tube manufacturing method in which a mandrel having a cross-sectional shape corresponding to the cross-sectional shape of the inner surface of the female tube is fitted, and a metal tube is rolled into a deformed tube by a rolling die having a die rolling surface corresponding to the outer surface of the female tube. It is about.
[0002]
[Prior art]
A manufacturing method of such a deformed tube is described in Japanese Patent Application No. 3-248733 which is the prior application of the applicant of the present application.
[0003]
[Problems to be solved by the invention]
However, in this conventional method, in order to enable sliding between the male tube and the female tube after the deformed tube is rolled, the outer metal tube and / or the outer metal tube are formed on the inner surface of the outer metal tube before the rolling forming. It is necessary to perform surface treatment by coating with nylon or the like, caustic treatment, etc., and these surface treatments are laborious and costly.
[0004]
Therefore, an object of the present invention is to obtain a modified tube manufacturing method that does not require any surface treatment on the inner surface or outer surface of the metal tube before such rolling forming.
[0005]
[Means for Solving the Problems]
In order to achieve this object, according to the method of manufacturing a deformed tube of the present invention, a thin film layer is wound around the inner metal tube with a predetermined thickness, and then the outer metal tube is fitted, and the core metal and the rolling die are used. The deformed tube is formed by rolling, and the thin film layer is removed by chemicals after the rolling.
[0006]
According to the method of the present invention, a predetermined minimum fitting gap is ensured between the male tube and the female tube by removing the thin film layer after the rolling.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, preferred embodiments of the present invention will be described with reference to the drawings.
[0008]
The method for manufacturing a deformed tube according to the present invention manufactures a deformed tube for a drive shaft comprising a female tube and a male tube that are slidable and non-rotatable relative to each other. The outer metal tube 3 is fitted after the
[0009]
Thereafter, rolling is performed by a mandrel 4 having a cross-sectional shape corresponding to the cross-sectional shape of the inner surface of the male tube and a rolling die 5 having a die-rolling surface corresponding to the outer surface of the female tube (FIG. 1 (b) and (See (c)), the deformed tube 6 composed of the male tube 1a and the female tube 3a is formed (see FIG. 1 (d)).
[0010]
After the deformed tube 6 is formed by rolling, the
[0011]
【The invention's effect】
According to the modified tube manufacturing method of the present invention, the outer surface of the inner metal tube and / or the inner surface of the outer metal tube need not be coated with nylon or surface treatment by caustic treatment or the like before roll forming, and simple work Since the minimum necessary fitting gap after the rolling molding can be obtained only by winding the thin film layer, it is possible to shorten the manufacturing time and reduce the manufacturing cost.
[Brief description of the drawings]
FIGS. 1A, 1B, 1C, and 1D are explanatory views showing respective stages of implementation of a deformed tube manufacturing method according to the present invention.
[Explanation of symbols]
1 inner metal tube
3a Female tube 4 Mandrel 5 Rolling die 6 Deformed tube
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00569898A JP3923162B2 (en) | 1998-01-14 | 1998-01-14 | Manufacturing method of deformed tube for drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00569898A JP3923162B2 (en) | 1998-01-14 | 1998-01-14 | Manufacturing method of deformed tube for drive shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11197777A JPH11197777A (en) | 1999-07-27 |
| JP3923162B2 true JP3923162B2 (en) | 2007-05-30 |
Family
ID=11618332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00569898A Expired - Fee Related JP3923162B2 (en) | 1998-01-14 | 1998-01-14 | Manufacturing method of deformed tube for drive shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3923162B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4521172A1 (en) * | 2023-09-06 | 2025-03-12 | Nivarox-FAR S.A. | Tool and method for separating spiral springs after stripping and heat treatment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01283713A (en) * | 1988-05-10 | 1989-11-15 | Sumitomo Electric Ind Ltd | Manufacturing method of linear superconducting material |
| JP2820760B2 (en) * | 1990-02-23 | 1998-11-05 | 株式会社松井製作所 | Manufacturing method of deformed tube |
| JP2951421B2 (en) * | 1991-02-07 | 1999-09-20 | 株式会社松井製作所 | Manufacturing method of deformed tube |
-
1998
- 1998-01-14 JP JP00569898A patent/JP3923162B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11197777A (en) | 1999-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3923162B2 (en) | Manufacturing method of deformed tube for drive shaft | |
| JPH07164067A (en) | Manufacture of pipe with uneven thickness | |
| JP2004148403A (en) | Method for manufacturing metal container and metal container | |
| JPH11104771A (en) | Manufacture of plate steel circular member with peripheral wall | |
| RU2214311C2 (en) | Method for making bimetallic wire | |
| JPS6316823A (en) | Manufacture of can drum | |
| JP2951421B2 (en) | Manufacturing method of deformed tube | |
| EP1293269A1 (en) | Device and method for manufacturing soft metal tube | |
| JPS6092030A (en) | Manufacture of aluminum odd-shaped sleeve | |
| JPS61160494A (en) | Production of roll used in papermaking machine | |
| JPH0244612B2 (en) | HENKEIKANNOSEIHO | |
| JPS6099448A (en) | Cold forging method of cylindrical gear | |
| JP3304100B2 (en) | Manufacturing method of sheet metal gear | |
| JPS6082576A (en) | Roll manufacturing method | |
| JPH10146642A (en) | Production of ring gear | |
| JP3023010B2 (en) | Method of manufacturing multi-turn bellows tube | |
| JP2645787B2 (en) | Circumferential groove forming method | |
| JPH03254325A (en) | Manufacture of forged parts | |
| JPH04250020A (en) | Manufacture of spiral tube | |
| JPH10216833A (en) | Manufacture of multiplex winding tube and device thereof | |
| JPH1133660A (en) | Manufacturing method of toothed parts | |
| JPH0777652B2 (en) | Method for manufacturing a can body for a sleep-piece can | |
| JPS5825835A (en) | Production of rim | |
| JPS6027414A (en) | Production of blank pipe for bent pipe | |
| JPH0698427B2 (en) | Method for manufacturing fluid chamber components |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20041210 |
|
| RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20060718 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20070115 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20070123 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070221 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100302 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110302 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120302 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130302 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140302 Year of fee payment: 7 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |