JP2820760B2 - Manufacturing method of deformed tube - Google Patents
Manufacturing method of deformed tubeInfo
- Publication number
- JP2820760B2 JP2820760B2 JP4096590A JP4096590A JP2820760B2 JP 2820760 B2 JP2820760 B2 JP 2820760B2 JP 4096590 A JP4096590 A JP 4096590A JP 4096590 A JP4096590 A JP 4096590A JP 2820760 B2 JP2820760 B2 JP 2820760B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- shape
- mandrel
- fitted
- deformed
- 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
Landscapes
- Metal Extraction Processes (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) 本発明は軸線方向に互に摺動するよう嵌着する中空の
おす軸とめす軸とから成る異形チューブの製造方法に関
するものである。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a modified tube comprising a hollow male shaft and a female shaft which are fitted so as to slide in the axial direction.
(従来の技術とその課題) この種の異形チューブは例えば2個のユニバーサルジ
ョイントから成るジョイント組立体に使用されており、
おす軸がめす軸内にあって互に軸線の周りに回転しない
よう断面がレモン状のものや星形のものが使用されてい
る。(Prior art and its problems) This type of deformed tube is used, for example, in a joint assembly consisting of two universal joints.
Lemon-shaped or star-shaped ones are used so that the male shaft is inside the female shaft and does not rotate around the axes with each other.
これ等の異形チューブを製造するには、金属管を機械
的に成形するか、ブローチ加工等によっておす軸とめす
軸とを別個に製造し、おす軸とめす軸とが摺動嵌着する
よう手作業で間隙を修正していた。従って製造には多大
の時間を要するばかりでなく、おす軸とめす軸との間に
遊びが多く、作業中騒音を発し、かじり、焼付けを生じ
易く、異形チューブを使用するユニバーサルジョイント
の伝道効率が低く、耐用年数も短かい欠点があった。In order to manufacture these deformed tubes, a metal tube is mechanically formed, or a male shaft and a female shaft are separately manufactured by broaching or the like, and the male shaft and the female shaft are slidably fitted. The gap was corrected manually. Therefore, not only does it take a lot of time to manufacture, but also there is a lot of play between the male shaft and the female shaft, generating noise during work, easy to seize, seizure, and the transmission efficiency of the universal joint using a deformed tube is reduced. The drawbacks are low and short service life.
従って、短時間に安価に製造でき、おす軸とめす軸と
の嵌合に遊びがなく、かじりや焼付けを生ずることなく
作動し、耐用年数も長い異形チューブが待望されてき
た。Therefore, a deformed tube that can be manufactured in a short time at low cost, has no play in fitting the male shaft to the female shaft, operates without galling or seizure, and has a long service life has been desired.
(課題を解決するための手段) この課題を解決するため本発明異形チューブの製造方
法はめすチューブ内におすチューブを軸線方向に摺動し
得るよう嵌着した異形チューブを製造するに当り、引き
抜き出口端部の開口形状が前記めすチューブに対応し、
引き抜き入口端部の開口形状が異形の小径部の寸法に対
応する直径の円形開口であり、入口から出口に向って開
口の断面が連続的に拡大するとともに円形から異形に変
化していくダイスと、引き抜き出口端部の外側輪郭が前
記おすチューブに対応し、引き抜き入口端部の外側輪郭
が異形の小径部の寸法に対応する直径の円形輪郭であ
り、入口から出口に向って外側輪郭の断面が連続的に拡
大するとともに円形から異形に変化していく心金とを使
用し、前記ダイス内に前記心金を嵌合させ、前記ダイス
と前記心金間のクリアランスに入口端部から互に嵌着し
た2個の金属管を導入し、出口端部から同時に引抜くこ
とを特徴とする。(Means for Solving the Problems) In order to solve this problem, the method for manufacturing a modified tube according to the present invention is characterized in that in manufacturing a modified tube in which a male tube is fitted in a female tube so as to be slidable in the axial direction, drawing is performed. The opening shape at the outlet end corresponds to the female tube,
A die in which the shape of the opening at the end of the withdrawal inlet is a circular opening having a diameter corresponding to the size of the small-diameter portion with an irregular shape, and the cross-section of the opening continuously increases from the inlet to the outlet and changes from circular to irregular. , The outer contour of the withdrawal outlet end corresponds to the male tube, the outer contour of the withdrawal inlet end is a circular contour having a diameter corresponding to the dimension of the irregularly shaped small diameter portion, and a cross section of the outer contour from the inlet to the outlet. Using a mandrel that continuously expands and changes from a circular shape to a deformed shape, fits the mandrel in the die, and allows the clearance between the die and the mandrel to enter each other from the inlet end. The two fitted metal tubes are introduced and simultaneously pulled out from the outlet end.
本発明を実施するに当り、金属管の内外面に苛性処理
を施こすのが好適である。In practicing the present invention, it is preferable to subject the inner and outer surfaces of the metal tube to a caustic treatment.
(作 用) 互に嵌着する2個の金属管を同時に引抜くことによっ
て互に遊びがない異形チューブを短時間に製造すること
ができる。2個の金属管を別個に機械加工し、又はブロ
ーチ加工していたのでは加工後の調整に時間を要し、し
かも遊びを完全に除去できないが、同時に引抜くことに
よって、少ない工数で短時間に異形チューブを製造する
ことができる。(Operation) By simultaneously extracting two metal tubes fitted to each other, a deformed tube having no play can be manufactured in a short time. If two metal pipes were machined or broached separately, it would take time to adjust after processing, and play could not be completely removed. A modified tube can be manufactured.
(実施例) 異形チューブの一例として一部を第1図に斜視図で示
し、端面を第2図に示す。(Example) As an example of a deformed tube, a part is shown in a perspective view in FIG. 1, and an end face is shown in FIG.
この実施例の異形チューブは機械構造用炭素鋼管から
製造したスター状のチューブでおすチューブ2とめすチ
ューブ4とから成る。炭素鋼管は断面が円形の継目ない
鋼管でもよいし継目あり鋼管でもよい。また図示の異形
チューブはスター状であるが三角形、四角形の異形チュ
ーブでもよい。The deformed tube of this embodiment comprises a male tube 2 and a female tube 4 which are star-shaped tubes manufactured from carbon steel tubes for machine structures. The carbon steel pipe may be a seamless steel pipe having a circular cross section or a seamless steel pipe. Although the illustrated irregular-shaped tube has a star shape, it may be a triangular or square irregular-shaped tube.
この異形チューブを製造するに当り、本発明において
は第3図に示すようにダイス6と心金8とを使用する。
おすチューブ2となる鋼管とめすチューブ4となる鋼管
の内外面にまず燐酸塩被膜処理のような苛性処理を施こ
す。代りに二硫化モリブデン又は二硫化タングステンを
コーテングしてもよい。またおすチューブの内面はこの
処理を省略してもよい。In manufacturing the modified tube, a die 6 and a mandrel 8 are used in the present invention as shown in FIG.
First, a caustic treatment such as a phosphate coating treatment is applied to the inner and outer surfaces of the steel tube to be the male tube 2 and the steel tube to be the female tube 4. Alternatively, molybdenum disulfide or tungsten disulfide may be coated. This process may be omitted on the inner surface of the male tube.
ダイス6及び心金8の組合せ体の引き抜きの出口端部
の開口形状及び外側輪郭形状、並びにおすチューブ2及
びめすチューブ4の断面形状を第3図に示す。FIG. 3 shows the opening shape and the outer contour shape of the exit end of the drawing of the combination of the die 6 and the mandrel 8, and the cross-sectional shapes of the male tube 2 and the female tube 4.
ダイス6の引き抜き出口端部の開口形状は、めすチュ
ーブ4の断面形状に対応し、ダイス6の引き抜き入口端
部の開口形状は第3図に点線12で示すように異形の小径
部の寸法に対応する直径の円形開口であり、この入口か
ら出口に向って開口の断面が連続的に拡大するととも
に、円形から異形に変化していく。The opening shape of the drawing outlet end of the die 6 corresponds to the cross-sectional shape of the female tube 4, and the opening shape of the drawing inlet end of the die 6 has the size of the irregular small diameter portion as shown by a dotted line 12 in FIG. A circular opening having a corresponding diameter, and the cross section of the opening continuously increases from the inlet to the outlet, and changes from a circular shape to an irregular shape.
心金8の引き抜き出口端部の外側輪郭は、おすチュー
ブ2の断面形状に対応し、心金8の引き抜き入口端部の
外側輪郭は第3図に点線10で示すように異形の小径部の
寸法に対応する直径の円形輪郭であり、入口から出口に
向って外側輪郭の断面が連続的に拡大するとともに、円
形から異形に変化していく。The outer contour of the withdrawal outlet end of the mandrel 8 corresponds to the cross-sectional shape of the male tube 2, and the outer contour of the withdrawal inlet end of the mandrel 8 has a modified small diameter portion as shown by a dotted line 10 in FIG. It is a circular contour having a diameter corresponding to the dimension, and the cross section of the outer contour continuously increases from the inlet to the outlet, and changes from a circle to an irregular shape.
このように、入口から出口に向って断面形状が互いに
相似形であり連続的に拡大及び異形に変化していくダイ
ス6及びこのダイス内に嵌合させた心金8との間に生ず
るクリアランス内に、互いに嵌着した2個の円筒形金属
管を導入する。これら互いに嵌合した円筒形の金属管の
導入時の内径及び外径は第3図の点線10,12で示すもの
と対応する。As described above, the clearance between the die 6 and the mandrel 8 fitted in the die 6 whose cross-sectional shape is similar to each other from the inlet to the outlet and which continuously expands and changes into an irregular shape is formed. Then, two cylindrical metal tubes fitted to each other are introduced. The inner and outer diameters of the fitted cylindrical metal tubes at the time of introduction correspond to those indicated by dotted lines 10 and 12 in FIG.
ダイス6と心金8との組合せ体のクリアランス内に入
口端部から導入した2個の円筒形の金属管は、出口端部
に至るまでに徐々に拡開されるとともに、第3図の実線
で示すように出口端部において異形チューブとして引き
抜かれる。この引抜きは常温におけるいわゆる冷間引抜
きでもよいし、場合により200℃〜500℃の温間引抜きで
もよい。The two cylindrical metal pipes introduced from the inlet end into the clearance of the combined body of the die 6 and the mandrel 8 are gradually expanded until reaching the outlet end, and the solid line in FIG. At the outlet end, it is withdrawn as a profiled tube as indicated by. This drawing may be so-called cold drawing at room temperature, or may be warm drawing at 200 ° C. to 500 ° C. in some cases.
この実施例は鋼管の場合を説明したが鋼管、アルミニ
ウム管等の他の金属管でもよいこともちろんである。In this embodiment, the case of a steel pipe has been described, but other metal pipes such as a steel pipe and an aluminum pipe may be used.
このようにダイス6と心金8とを使用しておすチュー
ブ2とめすチューブ4とを同時に引抜くことによって異
形チューブを簡単に製造することができる。As described above, the deformed tube can be easily manufactured by simultaneously extracting the tube 2 and the female tube 4 using the die 6 and the mandrel 8.
(効 果) 上述したところから明らかなように、本発明によれば
互に嵌着したおすチューブ2とめすチューブ4とを、ダ
イス6と心金8とに対し引抜くことによって、遊びが少
なく、従って動力伝達時に軸線方向に平滑に摺動して騒
音を発しない寿命が長い異形チューブを簡単安価に製造
し得る効果がある。(Effects) As is clear from the above description, according to the present invention, the male tube 2 and the female tube 4 fitted to each other are pulled out with respect to the die 6 and the mandrel 8, so that play is reduced. Therefore, there is an effect that a deformed tube having a long service life which does not generate noise by sliding smoothly in the axial direction during power transmission can be simply and inexpensively manufactured.
第1図は本発明方法で製作した異形チューブの斜視図、 第2図は第1図の異形チューブの端面図、 第3図は製造時の異形チューブをダイス及び心金と共に
示す端面図である。 2……おすチューブ、4……めすチューブ 6……ダイス、8……心金 10,12……引抜き前の金属管のテーパ端部1 is a perspective view of a modified tube manufactured by the method of the present invention, FIG. 2 is an end view of the modified tube of FIG. 1, and FIG. 3 is an end view showing the modified tube together with a die and a mandrel at the time of manufacture. . 2 ... male tube, 4 ... male tube 6 ... die, 8 ... mandrel 10,12 ... taper end of metal tube before drawing
Claims (2)
に摺動し得るよう嵌着した異形チューブを製造するに当
り、引き抜き出口端部の開口形状が前記めすチューブに
対応し、引き抜き入口端部の開口形状が異形の小径部の
寸法に対応する直径の円形開口であり、入口から出口に
向って開口の断面が連続的に拡大するとともに円形から
異形に変化していくダイスと、引き抜き出口端部の外側
輪郭が前記おすチューブに対応し、引き抜き入口端部の
外側輪郭が異形の小径部の寸法に対応する直径の円形輪
郭であり、入口から出口に向って外側輪郭の断面が連続
的に拡大するとともに円形から異形に変化していく心金
とを使用し、前記ダイス内に前記心金を嵌合させ、前記
ダイスと前記心金間のクリアランスに入口端部から互に
嵌着した2個の金属管を導入し、出口端部から同時に引
抜くことを特徴とする異形チューブの製造方法。When manufacturing a deformed tube in which a male tube is fitted in a female tube so as to be slidable in the axial direction, the shape of an opening at a drawing outlet end corresponds to the female tube, and a drawing inlet end. Is a circular opening having a diameter corresponding to the size of the small-diameter portion having a deformed shape, a cross-section of the opening continuously expanding from the inlet to the outlet, and changing from a circular shape to a deformed shape. The outer contour of the portion corresponds to the male tube, the outer contour of the drawn inlet end is a circular contour having a diameter corresponding to the size of the irregularly shaped small diameter portion, and the cross section of the outer contour continuously extends from the inlet to the outlet. Using a mandrel that expands and changes from a circular shape to a deformed shape, the mandrel is fitted into the die, and the clearance between the die and the mandrel is fitted to each other from the inlet end. Piece of gold Introducing tube, a manufacturing method of the profile tube, characterized in that pulling simultaneously from the outlet end.
施こす特許請求の範囲第1項に記載の方法。2. The method according to claim 1, wherein a coating treatment is performed before drawing the two metal tubes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4096590A JP2820760B2 (en) | 1990-02-23 | 1990-02-23 | Manufacturing method of deformed tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4096590A JP2820760B2 (en) | 1990-02-23 | 1990-02-23 | Manufacturing method of deformed tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03248711A JPH03248711A (en) | 1991-11-06 |
JP2820760B2 true JP2820760B2 (en) | 1998-11-05 |
Family
ID=12595190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4096590A Expired - Fee Related JP2820760B2 (en) | 1990-02-23 | 1990-02-23 | Manufacturing method of deformed tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2820760B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3923162B2 (en) * | 1998-01-14 | 2007-05-30 | 株式会社松井製作所 | Manufacturing method of deformed tube for drive shaft |
JP3239833B2 (en) * | 1998-02-25 | 2001-12-17 | 三菱マテリアル株式会社 | Manufacturing method of deformed pipe |
DE102005056166A1 (en) * | 2004-11-26 | 2006-06-08 | Continental Teves Ag & Co. Ohg | Brake caliper of a disc brake |
CN109013724A (en) * | 2018-07-19 | 2018-12-18 | 张家港华程特种材料股份有限公司 | A kind of ball spline casing cold-drawn one-time-shaped mould |
-
1990
- 1990-02-23 JP JP4096590A patent/JP2820760B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH03248711A (en) | 1991-11-06 |
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Legal Events
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