JPS6195816A - Cutting method for metal pipe - Google Patents
Cutting method for metal pipeInfo
- Publication number
- JPS6195816A JPS6195816A JP21373384A JP21373384A JPS6195816A JP S6195816 A JPS6195816 A JP S6195816A JP 21373384 A JP21373384 A JP 21373384A JP 21373384 A JP21373384 A JP 21373384A JP S6195816 A JPS6195816 A JP S6195816A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- metal tube
- metal
- cut
- blade
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
- B23D35/001—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools cutting members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
一産業上の利用分野−
この発明は、鋳造管、ステンレス管等の金属管を切断し
て環状ないし短管状の素材を得る際に特に好適な金属管
の切断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 for cutting metal tubes that is particularly suitable for cutting metal tubes such as cast tubes and stainless steel tubes to obtain annular or short tube-shaped materials. It is something.
−従来の技術−
従来、金属管の切断は、旋盤によるか鋸盤による方法が
一般的であるが、これらの方法による場合には、切断部
の形状、寸法を比較的正確にできる反面、切断に時間が
かかるという欠点がある。-Prior art- Conventionally, metal pipes have generally been cut using a lathe or a saw, but these methods allow for relatively accurate shape and dimensions of the cut portion; The disadvantage is that it takes time.
−発明の目的−
この発明は、長い金属管を所定長さに切断して環状ない
し短管状の素材を得る場合、即ち、得られた環状な′い
し短管状の素材を更に加工する場合には、切断部の形状
、寸法精度をそれほど要求されないことに鑑み、より能
率良く金属管を切断できる方法を提供することを目的と
して為されたものである。-Object of the invention- This invention is applicable to the case where a long metal tube is cut into a predetermined length to obtain an annular or short tubular material, that is, when the obtained annular or short tubular material is further processed. In view of the fact that the shape and dimensional accuracy of the cut portion is not so required, the purpose of this invention is to provide a method for cutting metal tubes more efficiently.
一発明の構成−
図示実施例の符号を用いて説明すれば、本発明の金属管
の切断方法は、円弧状の主切刃４とこの主切刃の両端よ
り斜めに後退する側部切刃５とを有する刃体１の複数個
を放射状に配置して設け、切断しようとする金属管３を
該複数個の刃体１の中央部に挿入し、該金属管の内径部
３ａに芯金等を嵌装せずに当該複数個の刃体をその中央
部に向けて同時に進出させて金属管の外周に強圧させる
ことを特徴とするものである。Structure of the Invention - To explain using the reference numerals of the illustrated embodiments, the method for cutting a metal tube of the present invention includes an arc-shaped main cutting edge 4 and side cutting edges receding diagonally from both ends of the main cutting edge. A plurality of blade bodies 1 having 5 and 5 are arranged radially, and a metal tube 3 to be cut is inserted into the center of the plurality of blade bodies 1, and a core metal is inserted into the inner diameter part 3a of the metal tube. This method is characterized in that the plurality of blade bodies are simultaneously advanced toward the center of the metal tube without being fitted with a metal tube to apply strong pressure to the outer periphery of the metal tube.
−実施例−
第１図ないし第４図は、４個の刃体を設けた本発明の一
実施例を示したもので、第１．２図は切断前の状態を、
第３．４図は切断時の状態を示したものである。図中、
１は刃体、２は刃体ホルダ、３は金属管、図中の矢印は
刃体１および刃体ホルダ２の進退動作方向を示したもの
である。-Example- Figures 1 to 4 show an example of the present invention provided with four blades, and Figures 1 and 2 show the state before cutting.
Figure 3.4 shows the state at the time of cutting. In the figure,
1 is a blade body, 2 is a blade holder, 3 is a metal tube, and the arrows in the figure indicate the forward and backward movement directions of the blade body 1 and the blade holder 2.
刃体１は、第５．６図に示すように、円弧状の主切刃４
とこの主切刃４の両端より斜めに後退する側部切刃５と
を有しており、４個の刃体を設けた本実施例のものにお
いては、主切刃４は１／４円弧長の長さを有しており、
側部切刃５は４５度の角度で設けられている。The blade body 1 has an arc-shaped main cutting edge 4 as shown in Fig. 5.6.
and a side cutting edge 5 that recedes diagonally from both ends of the main cutting edge 4. In this embodiment with four blade bodies, the main cutting edge 4 has a 1/4 arc shape. It has a long length,
The side cutting edges 5 are provided at an angle of 45 degrees.
切断しようとする金属管３は、第１．２図のように放射
方向に後退している複数の刃体１の中央部に挿入され、
内径部３ａに芯金等を挿入しないそのままの状態で複数
の刃体１を矢印Ａの方向に同時に進出させ、第３．４図
に示す状態で金属管３の切断が行われる。The metal tube 3 to be cut is inserted into the center of a plurality of blade bodies 1 that are retreating in the radial direction as shown in Fig. 1.2.
A plurality of blades 1 are simultaneously advanced in the direction of arrow A without inserting any core metal or the like into the inner diameter portion 3a, and the metal tube 3 is cut in the state shown in FIG. 3.4.
通常、このような方法で金属管の切断を行おうとすると
、刃体１の強圧力により金属管３が潰れてしまい、切断
を行うことができないと考えられていたが、後述する装
置で行った試験の結果、鋳造管やある程度の肉厚のある
ステンレス管等では、金属管３内に芯金等を嵌装しなく
ても、支障なく切断を行うことが可能であった。Normally, when attempting to cut a metal tube using this method, it was thought that the metal tube 3 would be crushed by the strong pressure of the blade 1, making it impossible to cut it. As a result of the test, it was possible to cut cast pipes, stainless steel pipes with a certain wall thickness, etc. without any trouble even without inserting a core metal etc. into the metal pipe 3.
第７，８図は、本発明方法を実施する装置の− ・例を
示したもので、６は図示しない基台に装着された面板、
７は軸受メタル８，９により面板６に軸支されたクラン
ク軸、１０はクランク軸７と一体に偏心させて形成した
クランクピンである。7 and 8 show an example of an apparatus for carrying out the method of the present invention, and 6 is a face plate mounted on a base (not shown);
7 is a crankshaft supported by the face plate 6 by bearing metals 8 and 9, and 10 is a crankpin formed eccentrically and integrally with the crankshaft 7.
１１は面板６に固着された十字状のガイド体で、刃体ホ
ルダ２はガイド体１１に放射方向に摺動自在に嵌装され
ている。１２は刃体ホルダ２に設けた８字状の透孔、１
３はクランクピン１０に軸着された８字状のクランクア
ームで、クランクアーム１３の内側円筒部１３ａが透孔
１２の内側円筒部１２ａに揺動自在に嵌合され、クラン
ク軸７が一回転したときに刃体ホルダ２が一往復動する
構造となっている。Reference numeral 11 denotes a cross-shaped guide body fixed to the face plate 6, and the blade holder 2 is fitted into the guide body 11 so as to be freely slidable in the radial direction. 12 is a figure 8-shaped through hole provided in the blade holder 2;
Reference numeral 3 designates an eight-shaped crank arm that is pivotally attached to the crank pin 10. The inner cylindrical portion 13a of the crank arm 13 is fitted into the inner cylindrical portion 12a of the through hole 12 so as to be swingable, and the crankshaft 7 rotates once. The structure is such that the blade holder 2 moves back and forth once.
１４はクランク軸７の後端に固着されたピニオン、１５
はベアリング１６．１７によって面板６の裏面中央部に
軸着された中間歯車、１８は中間歯車１５に噛合する駆
動歯車、１９は図示しない駆動装置により間歇的に回転
駆動される駆動軸で、駆動歯車１８は駆動軸１９に固設
されている。２０は面板６の中央部に設けられた金属管
挿入用の空所、第８図に破線で示す２１は空所２０から
斜め下方に伸びる切断された管３ｂ（第４図）の排出路
である。14 is a pinion fixed to the rear end of the crankshaft 7; 15
18 is a drive gear that meshes with the intermediate gear 15; 19 is a drive shaft that is intermittently rotated by a drive device (not shown); Gear 18 is fixed to drive shaft 19 . 20 is a space provided in the center of the face plate 6 for inserting a metal tube, and 21, indicated by a broken line in FIG. be.
以上の装置に於いて、駆動軸１９を回転させると、該回
転は中間歯車１５及びビニオン１４を介してクランク軸
７に伝達され、クランクピン１０及びクランクアーム１
３を介して刃体ホルダ２をガイド体１１に沿って進退さ
せる。従って、刃体１が進出して第３．４図の状態とな
って挿入された金属管３の端部３ｂを切断し、刃体１が
後退したときに図示しない間歇送り装置により金属管３
を所定長ずつ送ってやれば、金属管３は所定長の環状な
いし短管状に切断されて排出路２１から次々と排出され
る。In the above device, when the drive shaft 19 is rotated, the rotation is transmitted to the crankshaft 7 via the intermediate gear 15 and the pinion 14, and the crank pin 10 and the crank arm 1 are rotated.
3, the blade holder 2 is moved forward and backward along the guide body 11. Therefore, the blade 1 advances to the state shown in FIG. 3.4, cutting the end 3b of the inserted metal tube 3, and when the blade 1 retreats, an intermittent feeding device (not shown) removes the metal tube 3.
When the metal tube 3 is fed a predetermined length at a time, the metal tube 3 is cut into an annular or short tube shape of a predetermined length and is discharged one after another from the discharge path 21.
一発明の効果−
以上のようにして金属管を切断する本発明の方法によれ
ば、従来方法に比較して大幅に生産性を向上させること
ができ、切断される金属管の内径に芯金等を嵌入する必
要もないから、簡単な構造の装置で切断を行うことがで
き、切断サイクルをより高速化することが可能となる。Effects of the Invention - According to the method of the present invention for cutting metal tubes as described above, productivity can be greatly improved compared to conventional methods, and the core metal is attached to the inner diameter of the metal tube to be cut. Since there is no need to insert any parts, etc., cutting can be performed using a device with a simple structure, and the cutting cycle can be made faster.
第１図ないし第４図は本発明方法の一実施例を示す図で
、第１図は切断前の状態を示す正面図、第２図は同縦断
面図、第３図は切断時の状態を示す正面図、第４図は同
縦断面図である。第５図及び第６図は刃体の詳細を示す
正面図及び縦断面図、第７図及び第８図は本発明方法を
使用した切断装置の要部を示す正面図及び縦断面図であ
る。
図中、１は刃体、２は刃体ホルダ、３は金属管、４は主
切刃、５は側部切刃である。Figures 1 to 4 are diagrams showing an embodiment of the method of the present invention, in which Figure 1 is a front view showing the state before cutting, Figure 2 is a longitudinal sectional view of the same, and Figure 3 is the state at the time of cutting. FIG. 4 is a longitudinal sectional view of the same. 5 and 6 are a front view and a longitudinal sectional view showing details of the blade body, and FIGS. 7 and 8 are a front view and a longitudinal sectional view showing the main parts of a cutting device using the method of the present invention. . In the figure, 1 is a blade, 2 is a blade holder, 3 is a metal tube, 4 is a main cutting edge, and 5 is a side cutting edge.
Claims (1)
する側部切刃とを有する刃体の複数個を放射状に配置し
て設け、切断しようとする金属管を該複数個の刃体の中
央部に挿入し、該金属管の内径部に芯金を嵌装せずに当
該複数個の刃体をその中央部に向けて同時に進出させて
金属管の外周に強圧させることを特徴とする、金属管の
切断方法。1. A plurality of blade bodies each having an arc-shaped main cutting edge and side cutting edges receding diagonally from both ends of the main cutting edge are arranged radially, and the metal pipe to be cut is cut into the plurality of blade bodies. The blades are inserted into the center of the metal tube, and the plurality of blades are advanced simultaneously toward the center without fitting a core metal into the inner diameter of the metal tube to apply strong pressure to the outer periphery of the metal tube. A method for cutting metal tubes, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21373384A JPS6195816A (en) | 1984-10-12 | 1984-10-12 | Cutting method for metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21373384A JPS6195816A (en) | 1984-10-12 | 1984-10-12 | Cutting method for metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6195816A true JPS6195816A (en) | 1986-05-14 |
Family
ID=16644097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21373384A Pending JPS6195816A (en) | 1984-10-12 | 1984-10-12 | Cutting method for metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6195816A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006110714A (en) * | 2004-09-17 | 2006-04-27 | Showa Denko Kk | Cutting method of pipe and cutting device of pipe |
| JP2013059845A (en) * | 2011-09-15 | 2013-04-04 | Yutaka Giken Co Ltd | Pipe material cutting method and apparatus |
-
1984
- 1984-10-12 JP JP21373384A patent/JPS6195816A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006110714A (en) * | 2004-09-17 | 2006-04-27 | Showa Denko Kk | Cutting method of pipe and cutting device of pipe |
| JP2013059845A (en) * | 2011-09-15 | 2013-04-04 | Yutaka Giken Co Ltd | Pipe material cutting method and apparatus |
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