JPS609668A - Tool for drawing pipe - Google Patents
Tool for drawing pipeInfo
- Publication number
- JPS609668A JPS609668A JP11517383A JP11517383A JPS609668A JP S609668 A JPS609668 A JP S609668A JP 11517383 A JP11517383 A JP 11517383A JP 11517383 A JP11517383 A JP 11517383A JP S609668 A JPS609668 A JP S609668A
- Authority
- JP
- Japan
- Prior art keywords
- plug
- pipe
- lubricant
- lubricant reservoir
- tool according
- 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
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明は金属材料のパイプを富加工度て冷間引抜き加工
する際の引抜き用工具に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a drawing tool for cold drawing a pipe made of a metal material at a high working strength.
（従来技術〕
パイプを冷間引抜き加工する場合、プラグとダイスの間
にパイプを通して該パイプの外径あるいは外径及び肉厚
を圧下する方法がある。引抜加工前の素材パイプＧＬス
ケールが付いている場合、それを除去した後潤滑剤処理
し引抜き加工を行う。(Prior art) When cold drawing a pipe, there is a method of passing the pipe between a plug and a die to reduce the outer diameter or outer diameter and wall thickness of the pipe.The raw pipe before drawing has a GL scale. If so, remove it, treat with lubricant, and then perform drawing.
プラグとターイスの寸法は、引抜き加工する素材パイプ
の寸法および加工度によって変る。高加工度の冷間引抜
き加工を行う場合、第１図、第２図に示すように平行部
４の直前にテーパ一部５をもったプラグ１と、第１図に
示すベアリングランド６ノ直前にテーパ一部７をもった
ダイス２の組合セが一般に採用されている。しかし、従
来、特にノくイブ３の内面３ａに潤滑不良による焼付が
生じ、ステンレス鋼のような加工硬化の大きい素材ノく
イブは３５％程度の加工度が限界であっｆこ。The dimensions of the plug and turner vary depending on the dimensions of the pipe material to be drawn and the degree of processing. When performing high-resolution cold drawing, a plug 1 having a tapered portion 5 immediately before the parallel portion 4 as shown in FIGS. 1 and 2, and a plug 1 having a tapered portion 5 immediately before the bearing land 6 shown in FIG. A combination of dice 2 with a tapered portion 7 is generally employed. However, in the past, seizures occurred due to poor lubrication, especially on the inner surface 3a of the knob 3, and the workability of the knob made of a highly work-hardened material such as stainless steel was limited to about 35%.
（発明の目的〕
本発明は、加工硬化の大きい素材パイプでも高加工度の
冷間引抜き加工を行うことのできるパイプ引抜き用工具
を提供することを目的とする。(Objective of the Invention) An object of the present invention is to provide a pipe drawing tool that can perform cold drawing with a high degree of workability even on a material pipe that is highly work hardened.
（発明の構成・作用〕
本発明は引抜加工困難な問題を、プラグとパイプとの接
触開始点近傍のプラグ全周にゎたって潤滑剤溜りを設け
ることにより、プラグａ素材パイプとの接触部への潤滑
剤の供給を適確に行い解決をはかるものである。(Structure and operation of the invention) The present invention solves the problem of difficult drawing process by providing a lubricant reservoir around the entire circumference of the plug in the vicinity of the starting point of contact between the plug and the pipe. The solution is to supply lubricant appropriately.
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３図はアール部１３を有するダイス８および第２図の
如く円錐状のテーパ一部５と円柱状の平行部４とを有し
たフローティング方式のプラグ１とを用いることにより
、該プラグ１とパイプ３との接触開始点９の近傍のプラ
グ全周にわたって潤滑剤溜り１０を設けた例を示す。第
３図において、パイプ３を矢印Ａ−力方向引抜くと、該
パイプ３の内面に付着している過剰の潤滑剤が５接触開
始点９でしごかれて潤滑剤溜り１０に溜唸る。該潤滑剤
溜り１０内に溜った潤滑剤は、パイプ３の引抜きによる
移動に伴ない接触開始点９からパイプ３の引抜き加工部
位、すなわちプラグ１の平行部４の全周に供給される。FIG. 3 shows that by using a die 8 having a rounded part 13 and a floating type plug 1 having a conical tapered part 5 and a cylindrical parallel part 4 as shown in FIG. An example is shown in which a lubricant reservoir 10 is provided around the entire circumference of the plug in the vicinity of the point 9 where contact starts with the pipe 3. In FIG. 3, when the pipe 3 is pulled out in the direction of arrow A-force, the excess lubricant adhering to the inner surface of the pipe 3 is squeezed out at the contact starting point 9 and accumulates in a lubricant reservoir 10. The lubricant accumulated in the lubricant reservoir 10 is supplied from the contact starting point 9 to the drawing-processed portion of the pipe 3, that is, the entire circumference of the parallel portion 4 of the plug 1, as the pipe 3 moves due to the drawing.
この場合、プラグ１の平行部４をダイス８のベアリング
ランド６に続くアール部１３に相対させると、引抜負荷
に伴ってプラグｌが矢印Ｂ方向へ移動しても潤滑剤溜り
１０の大きさ、形状が変化しない。このため移動前と同
様の潤滑作用を維持できる。″またパイプ３とプラグ１
との接触開始点９を、パイプ３の引抜き加工部位である
プラグ１の平行部４とするこ古により、パイプ３の内面
が潤滑剤溜り１０に至る葦でプラグ１と接触しないので
、潤滑剤付着状態を保持でき該潤滑剤を潤滑剤溜り１０
に貯留させることがてきる。In this case, if the parallel part 4 of the plug 1 is opposed to the rounded part 13 following the bearing land 6 of the die 8, even if the plug 1 moves in the direction of arrow B due to the pulling load, the size of the lubricant reservoir 10 will change. The shape does not change. Therefore, the same lubrication effect as before movement can be maintained. ``Also pipe 3 and plug 1
By setting the point 9 of contact with the parallel part 4 of the plug 1, which is the part of the pipe 3 to be drawn, the inner surface of the pipe 3 does not come into contact with the plug 1 in the reeds leading to the lubricant reservoir 10, so that the lubricant The lubricant can be kept attached to the lubricant reservoir 10.
It can be stored in
第４図はプラグのテーパ一部５と平行部４との境界部の
該プラグ全周に溝１１を設け、この溝１１を潤滑剤溜り
１０とした溝付きのプラグ１２の例を示し、第５図は該
プラグ１２を前記第１図において適用した例を示し、第
６図は該プラグ１２を前記第３図において適用した例を
示す。何れの場合も第３図の例と比べて、潤滑剤溜り１
０を確保できるので潤滑剤の溜り作用及び該潤滑剤の引
抜加工部への供給作用が優れている。FIG. 4 shows an example of a plug 12 with a groove, in which a groove 11 is provided around the entire circumference of the plug at the boundary between the tapered part 5 and the parallel part 4, and this groove 11 is used as a lubricant reservoir 10. FIG. 5 shows an example in which the plug 12 is applied in FIG. 1, and FIG. 6 shows an example in which the plug 12 is applied in FIG. 3. In either case, compared to the example in Figure 3, the lubricant reservoir 1
Since the lubricant can be maintained at 0, the lubricant retention function and the lubricant supply function to the drawing part are excellent.
（実施例つ
５ＩＪＳ４３ｏステンレス素材パイプ（４２，７１Ｍ１
φｘ４．、ｏｍｍｉ）を、第３図〜第６図に示した本発
明による工具と第１図に示した従来の工具を用いて下記
の工程で冷間引抜き加工を行った結果、本発明による工
具ではパイプ内面に焼付を生ずることなく良好な製品が
得られた。これに対して従来の工具ではパイプ内面に節
句が生じ不良品となった。(Example 5IJS43o stainless steel pipe (42,71M1
φx4. , ommi) in the following process using the tool according to the present invention shown in FIGS. 3 to 6 and the conventional tool shown in FIG. A good product was obtained without causing any seizure on the inner surface of the pipe. On the other hand, with conventional tools, cracks occurred on the inner surface of the pipe, resulting in defective products.
加工工程
（発明の効果）
以上のように本発明によれば５潤滑剤の供給作用が優れ
ているので、（１）ダイスおよびプラグの損耗が小さく
耐用期間が延長できる、（２）引抜き製品の表面性状が
優れ、品質向上作用が得られる、（３）１回当りの引抜
き加工度を大きくとれるため工程省略、能率向上の効果
が得られる。Processing process (effects of the invention) As described above, according to the present invention, the lubricant supply function is excellent, so (1) the wear and tear of dies and plugs is small and the service life can be extended, (2) the life of drawn products can be extended. It has excellent surface properties and improves quality. (3) Since the degree of drawing work can be increased each time, steps can be omitted and efficiency can be improved.
第１図、第２図は従来の引抜き用工具を示す図、第３図
乃至第６図は本発明の実施例を示す図、第３図はプラグ
とパイプの接触開始点の近傍のプラグ全周にわたって潤
滑剤溜りを設けた図、第４図乃至第６図は潤滑剤溜りと
してプラグ表面に溝を設けた図である。
１・・・プラグ、２・・・ダイス、３・・・パイプ、４
・−・プラグの平行部、５・・・プラグのテーパ一部、
６・・・ダイスのベアリングランド、７・・・ダイスの
テーパ一部、８・・・アール部を有するダイス、９・・
・接触開始点５１０・・・潤滑剤溜り、１１・・・溝、
１２・・・溝付のプラグ、１３・・・ダイスのアール部
。
特許出願人 代理人
弁理士 矢 葺 知 之
（はの）１名つ
第１図
第２図
第３図
第４図1 and 2 show a conventional extraction tool, FIGS. 3 to 6 show an embodiment of the present invention, and FIG. The diagrams in which a lubricant reservoir is provided around the circumference, and FIGS. 4 to 6 show diagrams in which grooves are provided on the plug surface as lubricant reservoirs. 1...Plug, 2...Dice, 3...Pipe, 4
・-・Parallel part of the plug, 5...Tapered part of the plug,
6...Bearing land of the die, 7...Tapered part of the die, 8...Dice having a rounded part, 9...
・Contact starting point 510...Lubricant reservoir, 11...Groove,
12...Grooved plug, 13...Round part of die. Patent applicant Representative patent attorney Tomoyuki Yafuki (1 person) Figure 1 Figure 2 Figure 3 Figure 4
Claims (5)
周にわたって潤滑剤溜りを設けたことを特徴とするパイ
プ引抜き用工具。(1) A tool for pulling out a pipe, characterized in that a lubricant reservoir is provided around the entire circumference of the plug near the starting point of contact between the plug and the pipe ξ.
界部であることを特徴とする特許請求の範囲第１項記載
のパイプ引抜き用工具。(2) The pipe drawing tool according to claim 1, wherein the lubricant reservoir is located at the boundary between the parallel portion and the tapered portion of the plug.
特徴とする特許請求の範囲第１項又は第２項記載のパイ
プ引抜き用工具。(3) The pipe drawing tool according to claim 1 or 2, wherein the lubricant reservoir is a groove provided on the surface of the plug.
続くアール部と相対していることを特徴とする特許請求
の範囲第１項乃至第３項記載のパイプ引抜き用工具。(4) A pipe drawing tool according to any one of claims 1 to 3, characterized in that the parallel portion of the plug faces the rounded portion of the die that follows the bearing land.
する特許請求の範囲第１項乃至第４項記載のパイプ引抜
き用工具。(5) The pipe drawing tool according to any one of claims 1 to 4, wherein the contact starting point is located at a parallel portion of the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11517383A JPS609668A (en) | 1983-06-28 | 1983-06-28 | Tool for drawing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11517383A JPS609668A (en) | 1983-06-28 | 1983-06-28 | Tool for drawing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS609668A true JPS609668A (en) | 1985-01-18 |
Family
ID=14656151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11517383A Pending JPS609668A (en) | 1983-06-28 | 1983-06-28 | Tool for drawing pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4717940A (en) * | 1986-03-11 | 1988-01-05 | Kabushiki Kaisha Toshiba | MIS controlled gate turn-off thyristor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5719110A (en) * | 1980-07-08 | 1982-02-01 | Sumitomo Light Metal Ind Ltd | Manufacture of pipe with inside channel |
-
1983
- 1983-06-28 JP JP11517383A patent/JPS609668A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5719110A (en) * | 1980-07-08 | 1982-02-01 | Sumitomo Light Metal Ind Ltd | Manufacture of pipe with inside channel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4717940A (en) * | 1986-03-11 | 1988-01-05 | Kabushiki Kaisha Toshiba | MIS controlled gate turn-off thyristor |
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