JP4514539B2 - Pipe cutting device and cutting method - Google Patents

Pipe cutting device and cutting method Download PDF

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JP4514539B2
JP4514539B2 JP2004218473A JP2004218473A JP4514539B2 JP 4514539 B2 JP4514539 B2 JP 4514539B2 JP 2004218473 A JP2004218473 A JP 2004218473A JP 2004218473 A JP2004218473 A JP 2004218473A JP 4514539 B2 JP4514539 B2 JP 4514539B2
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punch
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JP2006035368A (en
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幸孝 国本
正次 松尾
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株式会社 クニテック
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本発明は、パイプ切断装置及びパイプ切断装置を用いたパイプ切断方法に関する。   The present invention relates to a pipe cutting device and a pipe cutting method using the pipe cutting device.
従来、パイプを切断する方法としては、金鋸でパイプを切断する方法、パイプをチャックで固定し、上部よりV型のパンチを押し込んで切断する方法、パンチの挿入部分に前もって別工程でスリットを形成し、これにV型のパンチを押し込んで切断する方法及びパイプの上下2箇所に前もって別工程でスリットを形成しこれにV型のパンチを押し込んで切断する方法、などが採用されている。   Conventionally, as a method of cutting a pipe, a method of cutting a pipe with a gold saw, a method of fixing a pipe with a chuck and pushing a V-shaped punch from the top and cutting it, a slit in a separate process in advance of the punch insertion part A method of forming and slitting a V-shaped punch into this and a method of forming slits in two separate processes in advance at the upper and lower portions of the pipe and then pressing and cutting the V-shaped punch are adopted.
さらに、パンチを用いたパイプ切断方法として、次に示すパイプ切断方法が提案されている。(特許文献1参照)
すなわち、平板形状でパイプの直径より小さい巾の刃部を有する穴あけパンチと、先端部にこの穴あけパンチの刃部に等しい刃部を有するとともに漸増的にパイプの直径より大きい巾の切断刃が形成された平板状の切断パンチを用い、前記穴あけパンチあるいは切断パンチをパイプの軸線に直角に上下可動可能とするガイド溝部が形成されたチャックを、このガイド溝部がパイプの切断位置と一致するようにパイプへ外嵌し、パイブの内径に近似した外径を有し、外周にパイプの軸線に直角に前記穴あけパンチの刃部が挿通されるガイドスリットが形成されたダイスを、このガイドスリットが前記穴あけパンチの刃部に正対するようにパイプの内側へ挿入したのち、前記穴あけパンチを前記チャックのガイド溝を介してパイプへ加圧することにより、パイプへ前記穴あけパンチの形状に相当するスリットを形成し、しかるのち、前記穴あけパンチをパイプからチャック外へ引き抜くとともに、前記ダイスを前記チャックのガイド溝部から外れる位置へ移動し、次いで、前記切断パンチを前記チャックのガイド溝部を介してパイプのスリットへ挿入し、パイプを前記切断パンチの切刃により加圧して切断することを特徴とするパイプ切断方法である。
特開平3−161213号公報(3頁、図2)
Further, as a pipe cutting method using a punch, the following pipe cutting method has been proposed. (See Patent Document 1)
That is, a punching punch having a flat plate shape and a blade portion having a width smaller than the diameter of the pipe, and a cutting blade having a blade portion equal to the blade portion of the drilling punch at the tip portion and gradually wider than the diameter of the pipe are formed. A chuck having a guide groove portion that allows the punching punch or the cutting punch to move up and down at right angles to the axis of the pipe is used so that the guide groove portion coincides with the cutting position of the pipe. A die that has a guide slit that is externally fitted to the pipe and has an outer diameter that approximates the inner diameter of the pipe and in which the blade portion of the drilling punch is inserted perpendicularly to the axis of the pipe on the outer periphery. After being inserted inside the pipe so as to face the blade of the punch, the punch is pressed onto the pipe through the guide groove of the chuck. Then, a slit corresponding to the shape of the punch is formed in the pipe, and then the punch is pulled out of the chuck from the pipe, and the die is moved to a position where it is removed from the guide groove portion of the chuck. The pipe cutting method is characterized in that the cutting punch is inserted into the slit of the pipe through the guide groove portion of the chuck, and the pipe is pressed by the cutting blade of the cutting punch and cut.
JP-A-3-161213 (page 3, FIG. 2)
しかし、前記従来の金鋸による切断では、切断に要する時間が長く、かつ切カスが発生し、前記パンチによる切断では、いずれの場合も設備が複雑かつ設備が高価であるとともに、切断の加工工数が多いため、切断に要する時間も長く、切断面が凹凸となり、さらに、切断回数が増えると、切刃の耐久性が維持できず、も切断面にバリが発生したり、また、パイプが変形するという課題があった。   However, in the cutting with the conventional gold saw, the time required for cutting is long and cutting waste is generated. In the cutting with the punch, in both cases, the equipment is complicated and the equipment is expensive, and the number of processing steps for cutting is also high. Therefore, the time required for cutting is long, the cut surface becomes uneven, and if the number of cuts increases, the durability of the cutting edge cannot be maintained, and burrs occur on the cut surface, and the pipe is deformed. There was a problem to do.
また、切断工程において同一個所に異なるパンチで加工を行うため、切断誤差が発生し、切断した製品の精度及び製品の外観を悪化するという課題を有していた。   Further, since processing is performed with different punches at the same place in the cutting process, there is a problem that a cutting error occurs and the accuracy of the cut product and the appearance of the product are deteriorated.
上記課題を解決するため、本発明は、パイプを固定するダイスと、端面がダイス端面と僅かなクリアアンスを保つように正対して定置され、Y軸方向切断部と、X軸方向切断部を有するパンチと、パンチをY軸及びX軸方向に移動するパンチ駆動手段を備え、パンチをY軸方向に移動し、Y軸方向切断部でパンチに外装されたパイプをY軸方向に切断し、次にX軸方向に移動し、X軸方向切断部でX軸方向に切断することを特徴とするパイプ切断装置である。   In order to solve the above-described problems, the present invention provides a die for fixing a pipe, and an end surface thereof is placed facing the die end surface so as to keep a slight clearance, and a Y-axis direction cutting portion and an X-axis direction cutting portion are provided. And a punch driving means for moving the punch in the Y-axis and X-axis directions, moving the punch in the Y-axis direction, cutting the pipe covered by the punch in the Y-axis direction cutting portion in the Y-axis direction, Next, the pipe cutting device is characterized in that it moves in the X-axis direction and cuts in the X-axis direction at the X-axis direction cutting portion.
また、Y軸方向切断部は、パンチの長さ方向に対向した線状部に設けた尖端切断部であり、X軸方向切断部は、パンチ断面周縁各部に設けた周縁切断部でありることを特徴とするパイプ切断装置である。   Further, the Y-axis direction cutting part is a pointed cutting part provided in a linear part facing the punch length direction, and the X-axis direction cutting part is a peripheral cutting part provided in each part of the punch cross-sectional periphery. Is a pipe cutting device.
また、ダイスの端面周縁角部に切断部を設けたことを特徴とするパイプ切断装置である。   Moreover, the pipe cutting device is characterized in that a cutting portion is provided at a corner portion of the end face of the die.
また、パイプをパンチに外嵌する工程と、パンチをY軸+方向に移動して、Y軸方向切断部でパイプを切断する工程と、X軸+方向に移動して、X軸方向切断部でパイプを切断する工程と、X軸一方向に移動して、X軸方向切断部でパイプを切断する工程と、Y軸一方向に移動して、Y軸方向切断部でパイプを切断する工程からなるパイプ切断方法と、パイプをパンチに外嵌する工程と、パンチをY軸+方向及び一方向に移動して、Y軸方向切断部でパイプをY軸方向に切断する工程と、パイプをX軸+方向及び一方向に移動して、X軸方向切断部でパイプをX軸方向に切断する工程からなるパイプ切断方法である。   Also, a process of fitting the pipe to the punch, a process of moving the punch in the Y-axis + direction and cutting the pipe at the Y-axis direction cutting part, and a process of moving in the X-axis + direction and the X-axis direction cutting part Cutting the pipe at a step, moving in one direction of the X-axis and cutting the pipe at the X-axis direction cutting portion, and moving to one direction in the Y-axis and cutting the pipe at the Y-axis direction cutting portion A pipe cutting method, a step of fitting the pipe to the punch, a step of moving the punch in the Y-axis + direction and one direction, and cutting the pipe in the Y-axis direction at the Y-axis direction cutting portion; It is a pipe cutting method comprising a step of moving in the X axis + direction and one direction and cutting the pipe in the X axis direction at the X axis direction cutting portion.
本発明のパイプ切断装置によれば、パイプを切断するパンチは、パイプをY軸方向に切断する切断部と、X軸方向に切断する切断部を備え、Y軸方向切断部でパンチに外装されたパイプをY軸方向に切断し、X軸方向切断部でX軸方向に切断することを特徴とし、まず、Y軸方向切断部でパイプをY軸方向に切り開き、次に、X軸方向切断部がY軸方向に切り開かれた部分から順次パイプを拡開しながら切断するものであるため、パイプ切断時における余分な応力の発生を防止でき、かつ良好な切断断面を得ることができ、また、切断寸法及び精度においても、従来装置に比べ大幅に改善されたパイプ切断装置を提供することができる。さらに、パンチのY軸方向切断部で、パイプをパイプの軸方向であるY軸方向に切断し、その後に径方向であるX軸方向に切断することで、切カスを残さずパイプを切断することができ、またさらに、設備が簡単であり、切断に要する工数も少ないため、安価でかつ生産性の高いパイプ切断装置を提供することができる。 According to the pipe cutting device of the present invention, the punch for cutting the pipe includes a cutting portion for cutting the pipe in the Y-axis direction and a cutting portion for cutting in the X-axis direction, and is externally mounted on the punch at the Y-axis cutting portion. The pipe is cut in the Y-axis direction and cut in the X-axis direction at the X-axis direction cutting part. First, the pipe is opened in the Y-axis direction at the Y-axis direction cutting part, and then cut in the X-axis direction. Since the part is cut while expanding the pipe sequentially from the part opened in the Y-axis direction, it is possible to prevent the generation of excess stress during pipe cutting and to obtain a good cut section. Also, it is possible to provide a pipe cutting device that is significantly improved in cutting size and accuracy as compared with the conventional device. Further, the pipe is cut in the Y-axis direction, which is the axial direction of the pipe, and then cut in the X-axis direction, which is the radial direction, at the Y-axis direction cutting portion of the punch, thereby cutting the pipe without leaving any cutting residue. Furthermore, since the equipment is simple and the number of man-hours required for cutting is small, it is possible to provide an inexpensive and highly productive pipe cutting device.
以下本発明の実施の形態を、図面を参照しながら説明する。
図1は本発明の1実施の形態のパイプ切断装置を示す平面図、図2は図1の正面図、図3は側面図、図4は図3の切断装置部分の拡大図、図5は上下ダイス及びパンチの構造及び動作を示す拡大説明図、図6はパイプ装着時の状態とパンチの移動方向を示す拡大説明図、図7は刃先の基本寸法を示す説明図、図8は切断プロセスを示す説明図、図9、図10は切断動作説明図である。
Embodiments of the present invention will be described below with reference to the drawings.
1 is a plan view showing a pipe cutting device according to an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a side view, FIG. 4 is an enlarged view of the cutting device portion of FIG. FIG. 6 is an enlarged explanatory view showing the structure and operation of the upper and lower dies and the punch, FIG. 6 is an enlarged explanatory view showing the state when the pipe is mounted and the moving direction of the punch, FIG. FIG. 9 and FIG. 10 are explanatory views of cutting operation.
図において、1はパイプを掴持・固定するクランプ装置で、上ダイス1aと下ダイス1bを備える。2は上ダイス1aが取設されるダイス支持フレーム、3はクランプ用動力源支持フレーム、4は上ダイスを上下動するクランプ用駆動軸、4aはクランプ用駆動軸の動力源、5は下ダイス1bが取設される支持台、6は架台、7は架台6と支持フレーム3間に立設された支柱である。ダイス支持フレーム2は支柱7とベアリング(図示せず)を介して上下動自在に嵌挿されている。8は上下ダイスの接合面側にそれぞれ形成され、パイプを掴持固定するための円筒孔部1cを形成するパイプ固定面、9は上下ダイスのパンチ側端面とパイプ固定面8が交叉する角部に形成されたダイス側切断部である。10は切断装置で、パンチ11を備える。12はパンチ11を支持するフランジで、ダイス側端面にパンチ11が固設されている。13はパンチホルダーで、パンチ11をX軸方向及びY軸方向に移動するX軸方向及びY軸方向移動用駆動軸に固設されている。14はX軸方向移動用駆動軸、14aはX軸方向移動用駆動源、15はY軸方向移動用駆動軸、15aはY軸方向移動用駆動源である。   In the figure, reference numeral 1 denotes a clamping device for gripping and fixing a pipe, which includes an upper die 1a and a lower die 1b. 2 is a die support frame on which the upper die 1a is installed, 3 is a power source support frame for clamping, 4 is a driving shaft for clamping that moves the upper die up and down, 4a is a power source for the driving shaft for clamping, and 5 is a lower die. Reference numeral 1 b denotes a support base, 6 denotes a base, and 7 denotes a support column erected between the base 6 and the support frame 3. The die support frame 2 is inserted through a column 7 and a bearing (not shown) so as to be movable up and down. 8 is a pipe fixing surface that is formed on the joint surface side of the upper and lower dies, and forms a cylindrical hole 1c for gripping and fixing the pipe, and 9 is a corner where the punch side end surface of the upper and lower dies and the pipe fixing surface 8 intersect. It is the die side cutting part formed in this. A cutting device 10 includes a punch 11. Reference numeral 12 denotes a flange that supports the punch 11, and the punch 11 is fixed to the end surface of the die. A punch holder 13 is fixed to a drive shaft for moving the X axis direction and the Y axis direction for moving the punch 11 in the X axis direction and the Y axis direction. 14 is an X-axis direction moving drive shaft, 14a is an X-axis direction moving drive source, 15 is a Y-axis direction moving drive shaft, and 15a is a Y-axis direction moving drive source.
本実施の形態において、パンチ11は図5に示すように長さ方向に対向する尖った線状部を有する断面紡錘形の形状をした筒状体で形成され、上下ダイス1a、1bの切断部側端面の周縁角部には周縁切断部16が、上下の尖った部分で形成する稜線には尖端切断部17a、17bが形成されている。パンチ11の周縁切断部16側の端面は、上下ダイス1a、1bで形成される切断部9側端面と僅かなクリアランスを保ち、かつ上下ダイス1a、1bで形成される筒状孔部1cと中心が合致するように正対して定置される。前記クリアランスは切断される被加工材20の板厚によって適宜変更される。また、パンチ11の尖端切断部17a、17b間の径は、切断される被加工材20の内径より小さく設定される。被加工材20はクランプ用動力軸4の作動により上ダイス1aが上昇すると下ダイス1b上に装填され、図6に示すように、被加工物20の切断予定線20aから切断長分だけパンチ11に嵌挿される。パンチ11は上記定位置から切断動作時には、Y軸方向、X軸方向に駆動される。   In the present embodiment, the punch 11 is formed of a cylindrical body having a cross-sectional spindle shape having a pointed linear portion facing in the length direction as shown in FIG. 5, and the cutting portion side of the upper and lower dies 1 a and 1 b. A peripheral cutting portion 16 is formed at a peripheral corner portion of the end face, and a sharp end cutting portion 17a, 17b is formed at a ridgeline formed by upper and lower sharp portions. The end surface of the punch 11 on the peripheral cutting portion 16 side maintains a slight clearance from the end surface on the cutting portion 9 side formed by the upper and lower dies 1a and 1b, and is centered with the cylindrical hole portion 1c formed by the upper and lower dies 1a and 1b. Are placed face to face to match. The clearance is appropriately changed according to the thickness of the workpiece 20 to be cut. Moreover, the diameter between the point cutting parts 17a and 17b of the punch 11 is set smaller than the inner diameter of the workpiece 20 to be cut. The workpiece 20 is loaded on the lower die 1b when the upper die 1a is lifted by the operation of the power shaft 4 for clamping. As shown in FIG. 6, the punch 11 is cut by the cutting length from the planned cutting line 20a of the workpiece 20. Inserted. The punch 11 is driven in the Y-axis direction and the X-axis direction during the cutting operation from the fixed position.
パンチ11の刃先形状の基本寸法を図7を用いて説明する。パンチ11の尖端切断部間の寸法aはパイプ内径の以下であり、周縁切断部16を形成する円弧部cの曲率半径bは、パイプ内径の半径以上であり、尖端切断部と前記左右円弧部は直線部dによって接続され、直線部によって形成される角度はeで、この角度eは前記a、bで規定されるパンチの寸法によって適宜定められる。   The basic dimensions of the cutting edge shape of the punch 11 will be described with reference to FIG. The dimension a between the tip cut portions of the punch 11 is equal to or less than the inner diameter of the pipe, and the radius of curvature b of the arc portion c forming the peripheral cut portion 16 is equal to or greater than the radius of the pipe inner diameter. Are connected by a straight line portion d, and the angle formed by the straight line portion is e, and this angle e is appropriately determined by the dimensions of the punch defined by the above-mentioned a and b.
次に、図8を参照して、本実施の形態のパイプ切断装置によるパイプ切断の動作について説明する。  Next, with reference to FIG. 8, the pipe cutting operation by the pipe cutting device of the present embodiment will be described.
まず、被加工物であるパイプは上下ダイス1a、1b間に装着され、切断される長さ分だけダイス1a、1bの端面からパンチ11側に突出し、パンチ11に外嵌され、上下ダイス1a、1bにより掴持・固定される。
次にパイプ切断動作について説明する。
First, a pipe as a workpiece is mounted between the upper and lower dies 1a and 1b, protrudes from the end face of the dies 1a and 1b to the punch 11 side by the length to be cut, and is externally fitted to the punch 11, and the upper and lower dies 1a, Grabbed and fixed by 1b.
Next, the pipe cutting operation will be described.
(1)でパンチ11は定位置にあり、パンチ11が定位置(1)から図のY+方向に移動すると、(2)で被加工材20の内側にパンチ11が当たり、パンチ11の尖端切断部17aでパイプ20の切断を開始する。このとき、パイプ20が変形しない様にパンチの尖端切断部16は鋭利な形状を有する。次に、パンチ11がY+方向に移動すると、(3)でパイプ20はパンチ11の周縁切断部16で順次拡開しながら切断され、さらに、パンチ11がY+方向に移動すると、切断点は(3)から(4)へと移動する。この切断点の移動は、切断点が点として順次拡開しながら移動するため切断に要する力は大幅に軽減される。   In (1), the punch 11 is in a fixed position. When the punch 11 moves from the fixed position (1) in the Y + direction in the figure, the punch 11 hits the inner side of the workpiece 20 in (2), and the tip 11 of the punch 11 is cut. Cutting of the pipe 20 is started at the portion 17a. At this time, the tip cutting portion 16 of the punch has a sharp shape so that the pipe 20 is not deformed. Next, when the punch 11 moves in the Y + direction, the pipe 20 is cut while being sequentially expanded at the peripheral cutting portion 16 of the punch 11 in (3), and when the punch 11 moves in the Y + direction, the cutting point is ( Move from 3) to (4). The movement of the cutting point is greatly reduced because the cutting point moves while expanding gradually as a point.
次に、パンチ11は定位置(1)に戻る。同様のプロセスでY−方向の切断を行う。切断パンチ11が定位置(1)からX−方向へ移動すると、Y軸方向切断部ですでに切断された個所である切断開始点(5)に到達し、その個所からパンチ11の周縁切断部16で切断が開始される。この切断開始点(5)はパンチがY+、(Y−)移動で作った切断終了点(4)である。さらにパンチがX−方向に移動することにより、Y軸方向切断部で切断された個所から切断点(6)(7)へと移動し、X−方向の切断は完了する。切断完了後X−方向に僅か(8)まで移動する。このように、X方向の切断はすでにY方向の切断により切断されている部分から切断を開始し、順次拡開しながら切断を進めていくためシャー角を利用した切断となり、Y軸方向と同様切断に要する力が軽減される。
次に、パンチが定位置(1)に戻る。同様のプロセスでX+方向の切断を行う。上記の切断動作において、パンチ側の切断動作について説明したが、パンチによるパイプ内側切断動作時に、ダイス側切断部9がパイプ20の外側を切断するため、切断時の応力をより少なくすることができる。以上の切断動作により、切断される製品の精度、及び製品の外観が向上し、また切断に要する力が軽減され、設備が廉価なものとなり、かつ生産性の向上を図ることができる。
Next, the punch 11 returns to the home position (1). The Y-direction cutting is performed in the same process. When the cutting punch 11 moves from the fixed position (1) in the X-direction, it reaches a cutting start point (5) that is a portion that has already been cut at the Y-axis direction cutting portion, and the peripheral cutting portion of the punch 11 from that portion. At 16 the cutting is started. This cutting start point (5) is the cutting end point (4) made by the movement of the punch by Y + and (Y−). When the punch further moves in the X-direction, the punch moves from the portion cut at the Y-axis direction cutting portion to the cutting points (6) and (7), and the cutting in the X-direction is completed. After the cutting is completed, it moves to (8) in the X-direction. In this way, the cutting in the X direction starts from the portion that has already been cut by the cutting in the Y direction, and the cutting is performed using the shear angle since the cutting proceeds while expanding in the same manner as in the Y axis direction. The force required for cutting is reduced.
Next, the punch returns to the home position (1). Cutting in the X + direction is performed in the same process. In the above cutting operation, the cutting operation on the punch side has been described. However, since the die side cutting portion 9 cuts the outside of the pipe 20 during the pipe inner cutting operation by the punch, the stress at the time of cutting can be further reduced. . By the above cutting operation, the accuracy of the product to be cut and the appearance of the product are improved, the force required for the cutting is reduced, the equipment becomes inexpensive, and the productivity can be improved.
次に、本発明のパイプ切断装置によるパイプ切断動作工程と各工程によるパイプ切断状態について説明する。
(実施例1)
図9は、本発明のパイプ切断装置を用いたパイプ切断方法の一実施の形態を示す。
Next, the pipe cutting operation process by the pipe cutting device of the present invention and the pipe cutting state by each process will be described.
Example 1
FIG. 9 shows an embodiment of a pipe cutting method using the pipe cutting device of the present invention.
まず、パイプ20を下ダイス1b上で切断長分だけパンチ11に外嵌し、上ダイスが下降し下ダイスとの間でパイプ20を掴持・固定し、(1)で、切断準備が完了する。次に、工程(2)で、パンチ11が上昇し、パイプ20の上部を切断し、(3)で、パンチ11がさらに上昇し、切断幅を広げる。次に(4)で、パンチ11がY方向の位置をそのままで、左方に移動し、切断済の境界部からX方向の切断を開始する。次に(5)で、パンチ11がさらに左方に移動し、パイプ20の板厚をパイプ中央から僅かに下方まで切断する。次に(6)で、パンチ11が右に移動し切断済の境界部からY方向の切断を開始する。(7)で、パンチ11がさらに右方に移動し、パイプの板厚をパイプ中央から僅かに下方まで切断する。次に(8)で、パンチ11が中央に戻り、(9)で、パンチ11が下降しパイプ下部を切断し、パンチ11がさらに下降し、切断幅を広げる。(10)で、パンチ11がY方向位置をそのままに左に移動し、切断済の境界部からX方向の切断を開始する。(11)で、パンチ11がさらに左方に移動し、パイプの板厚を完全に切断し、(12)で、パンチ11が右に移動し、切断済の境界部から切断を開始し、(13)で、パンチ11がさらに左方に移動し、パイプの板厚を完全に切断する。(14)で、パンチは中央の定位置に戻り、切断を完了する。次に、上ダイス1aが上昇しクランプを開き、パイプ20を取り出し1サイクルの切断工程が終了する。
(実施例2)
図10は、本発明のパイプ切断装置を用いたパイプ切断方法の他の実施の形態を示す。
First, the pipe 20 is externally fitted to the punch 11 on the lower die 1b by the cutting length, the upper die is lowered, and the pipe 20 is held and fixed between the lower die and the preparation for cutting is completed in (1). To do. Next, in step (2), the punch 11 is raised to cut the upper portion of the pipe 20, and in (3), the punch 11 is further raised to widen the cutting width. Next, in (4), the punch 11 moves leftward with the position in the Y direction as it is, and starts cutting in the X direction from the cut boundary. Next, in (5), the punch 11 further moves to the left, and the thickness of the pipe 20 is cut from the center of the pipe to the lower side. Next, at (6), the punch 11 moves to the right and starts cutting in the Y direction from the cut boundary. In (7), the punch 11 moves further to the right, and cuts the thickness of the pipe from the center of the pipe to slightly below. Next, at (8), the punch 11 returns to the center. At (9), the punch 11 descends to cut the lower part of the pipe, and the punch 11 further descends to widen the cutting width. In (10), the punch 11 moves to the left with the Y-direction position unchanged, and starts cutting in the X direction from the cut boundary. In (11), the punch 11 further moves to the left and completely cuts the thickness of the pipe. In (12), the punch 11 moves to the right and starts cutting from the cut boundary. 13), the punch 11 moves further to the left and completely cuts the thickness of the pipe. At (14), the punch returns to the center fixed position, and the cutting is completed. Next, the upper die 1a is raised, the clamp is opened, the pipe 20 is removed, and the cutting process of one cycle is completed.
(Example 2)
FIG. 10 shows another embodiment of a pipe cutting method using the pipe cutting device of the present invention.
まずパイプ20を下ダイス1b上で切断長分だけパンチ11に外嵌し、上ダイス1aが下降し下ダイス1bとの間でパイプ20を掴持固定し、(1)で、切断準備が完了する。次に、工程(2)で、パンチ11が上昇し、パイプ20の上部を切断し、(3)で、パンチ11がさらに上昇し、パイプ上部の切断幅を広げる。次に(4)で、パンチ11が定位置であるパイプ中央に戻り、(5)で、パンチ11が下降しパイプ下部を切断する。次に(6)で、パンチ11がさらに下降し、パイプの下部の切断幅を広げる。次に(7)で、パンチ11がパイプ中央位置に戻る。(8)で、パンチ11が左に移動し、上下の切断済の境界部から切断を開始する。(9)で、パンチ11がさらに左に移動し、パイプの板厚を完全に切り離す。次に(10)で、パンチ11がパイプ中央位置に戻り、(11)で、パンチ11が右に移動し上下の切断済の境界部から切断を開始する。(12)で、パンチ11がさらに移動しパイプの板厚を完全に切り離し、パンチ11は中央の定位置に戻り、上ダイス1aが上昇しクランプを開き、パイプ20を取り出し、1サイクルの切断工程を終了する。   First, the pipe 20 is externally fitted to the punch 11 on the lower die 1b by the cutting length, the upper die 1a is lowered and the pipe 20 is held and fixed between the lower die 1b, and the preparation for cutting is completed in (1). To do. Next, in step (2), the punch 11 is raised to cut the upper portion of the pipe 20, and in (3), the punch 11 is further raised to widen the cutting width of the upper portion of the pipe. Next, at (4), the punch 11 returns to the center of the pipe, which is a fixed position, and at (5), the punch 11 is lowered to cut the lower part of the pipe. Next, at (6), the punch 11 is further lowered to widen the cutting width of the lower part of the pipe. Next, at (7), the punch 11 returns to the center position of the pipe. In (8), the punch 11 moves to the left and starts cutting from the upper and lower cut boundaries. In (9), the punch 11 further moves to the left, and the plate thickness of the pipe is completely cut off. Next, at (10), the punch 11 returns to the center position of the pipe, and at (11), the punch 11 moves to the right and starts cutting from the upper and lower cut boundaries. In (12), the punch 11 further moves to completely cut the plate thickness of the pipe, the punch 11 returns to the center fixed position, the upper die 1a rises, the clamp is opened, the pipe 20 is taken out, and one cycle cutting step Exit.
本発明のパイプ切断装置では、パンチの切断部がパイプと接触した部分から順次パイプを切断するものであるため、パイプ切断時における余分な応力の発生を防止でき、かつ良好な切断断面を得ることができ、また切断寸法及び精度においても、従来装置に比べ大幅に改善することができ、さらに、パンチの尖端切断部で、パイプをパイプの軸方向であるY軸方向に切断し、その後に周縁切断部で径方向であるX軸方向に切断することで、切カスを残さずパイプの切断をすることができ、またさらに、設備が簡単であり、切断に要する工数も少ないため、小型パイプから大型パイプさまざまな分野におけるパイプ切断装置として利用可能である。   In the pipe cutting device of the present invention, since the punch cutting part sequentially cuts the pipe from the part in contact with the pipe, it is possible to prevent the generation of excessive stress at the time of cutting the pipe and to obtain a good cut section. In addition, the cutting size and accuracy can be greatly improved as compared with the conventional apparatus, and the pipe is cut in the Y-axis direction, which is the axial direction of the pipe, at the tip cutting portion of the punch, and then the peripheral edge. By cutting in the X-axis direction, which is the radial direction at the cutting part, it is possible to cut the pipe without leaving any cutting residue, and furthermore, the equipment is simple and the number of man-hours required for cutting is small. Large pipe can be used as a pipe cutting device in various fields.
本発明のパイプ切断装置の平面図。The top view of the pipe cutting device of this invention. 図1の正面図。The front view of FIG. 図1の側面図。The side view of FIG. 図3のパンチ部の部分拡大図。The elements on larger scale of the punch part of FIG. 本発明のパイプ切断装置のダイス及びパンチの分解斜視図。The disassembled perspective view of the die | dye and punch of the pipe cutting device of this invention. パンチの移動方向を示す説明図。Explanatory drawing which shows the moving direction of a punch. パンチの形状と基本寸法を示す説明図。Explanatory drawing which shows the shape and basic dimension of a punch. パンチの切断動作を示す説明図。Explanatory drawing which shows the cutting | disconnection operation | movement of a punch. パンチの切断工程を示す説明図。Explanatory drawing which shows the cutting process of a punch. パンチの他の切断工程を示す説明図。Explanatory drawing which shows the other cutting process of a punch.
符号の説明Explanation of symbols
1 クランプ装置
1a 上ダイス
1b 下ダイス
1c 孔部
2 支持フレーム
3 動力源支持フレーム
4 クランプ用動力軸
4a 動力源
5 支持台
6 架台
7 支柱
8 パイプ固定面
9 ダイス側切断部
10 切断装置
11 パンチ
12 フランジ
13 パンチホルダー
14 X軸移動用駆動軸
14a 駆動源
15 Y軸移動用駆動軸
15a 駆動源
16 周縁切断部
17a、17b 尖端切断部
18 切断刃部
20 被加工材(パイプ)
20a切断予定線
DESCRIPTION OF SYMBOLS 1 Clamp apparatus 1a Upper die 1b Lower die 1c Hole 2 Support frame 3 Power source support frame 4 Clamping power shaft 4a Power source 5 Support base 6 Stand 7 Strut 8 Pipe fixing surface 9 Die side cutting part 10 Cutting apparatus 11 Punch 12 Flange 13 Punch holder 14 X-axis moving drive shaft 14a Drive source 15 Y-axis moving drive shaft 15a Drive source 16 Peripheral cutting portions 17a, 17b Pointed cutting portion 18 Cutting blade portion 20 Workpiece (pipe)
20a planned cutting line

Claims (5)

  1. パイプを固定するダイスと、端面がダイス端面と僅かなクリアランスを保つように正対して定置され、Y軸方向切断部と、X軸方向切断部を有するパンチと、パンチをY軸及びX軸方向に移動するパンチ駆動手段を備え、パンチをY軸方向に移動し、Y軸方向切断部でパンチに外装されたパイプをY軸方向に切断し、次にX軸方向に移動し、X軸方向切断部でY軸方向に切断された部分からX軸方向に切断することを特徴とするパイプ切断装置。 A die for fixing a pipe, an end face facing the die end face so as to maintain a slight clearance, a Y-axis direction cutting part, a punch having an X-axis direction cutting part, and a punch in the Y-axis and X-axis directions A punch driving means that moves in the direction of the Y-axis, moves the punch in the Y-axis direction, cuts the pipe covered by the punch in the Y-axis direction cutting portion in the Y-axis direction, then moves in the X-axis direction, and moves in the X-axis direction. A pipe cutting device for cutting in the X-axis direction from a portion cut in the Y-axis direction at the cutting part.
  2. Y軸方向切断部は、パンチの長さ方向に対向した線状部に設けた尖端切断部であり、X軸方向切断部は、パンチ断面周縁角部に設けた周縁切断部であることを特徴とする請求項1記載のパイプ切断装置。 The Y-axis direction cutting part is a pointed cutting part provided in a linear part facing the punch length direction, and the X-axis direction cutting part is a peripheral cutting part provided in a punch section peripheral corner. The pipe cutting device according to claim 1.
  3. ダイスの端面周縁角部に切断部を設けたことを特徴とする請求項1または2記載のパイプ切断装置。 The pipe cutting device according to claim 1 or 2, wherein a cutting portion is provided at a corner edge of the end face of the die.
  4. パイプを固定するダイスと、端面がダイス端面と僅かなクリアランスを保つように正対して定置され、Y軸方向切断部と、X軸方向切断部を有するパンチを備えたパイプ切断方法であって、パイプをパンチに外嵌する工程と、パンチをY軸+方向に移動して、Y軸方向切断部でパイプをY軸方向に切断する工程と、X軸+方向に移動して、X軸方向切断部でY軸方向に切断された個所からX軸方向に切断する工程と、X軸一方向に移動して、X軸方向切断部でY軸方向に切断された個所からX軸方向に切断する工程と、Y軸一方向に移動して、Y軸方向切断部でパイプを切断する工程からなるパイプ切断方法。 A pipe cutting method comprising a die for fixing a pipe, an end face facing the die end face so as to maintain a slight clearance, and a punch having a Y-axis direction cutting part and an X-axis direction cutting part, A step of fitting the pipe to the punch, a step of moving the punch in the Y-axis + direction, and a step of cutting the pipe in the Y-axis direction at the Y-axis direction cutting portion; a movement in the X-axis + direction; Cutting in the X-axis direction from the part cut in the Y-axis direction at the cutting part, moving in one direction of the X-axis, and cutting in the X-axis direction from the part cut in the Y-axis direction in the X-axis direction cutting part And a pipe cutting method comprising a step of moving in one direction of the Y axis and a step of cutting the pipe at the Y axis direction cutting portion.
  5. パイプを固定するダイスと、端面がダイス端面と僅かなクリアアンスを保つように正対して定置され、Y軸方向切断部と、X軸方向切断部を有するパンチを備えたパイプ切断方法であって、パイプをパンチに外嵌する工程と、パンチをY軸+方向及び一方向に移動して、Y軸方向切断部でパイプをY軸方向に切断する工程と、パイプをX軸+方向及び一方向に移動して、X軸方向切断部でY軸方向に切断された個所からX軸方向に切断する工程からなるパイプ切断方法。 A pipe cutting method comprising a die for fixing a pipe, an end face facing the die end face so as to maintain a slight clearance, and a punch having a Y-axis direction cutting part and an X-axis direction cutting part. A step of fitting the pipe to the punch, a step of moving the punch in the Y-axis + direction and in one direction, and a step of cutting the pipe in the Y-axis direction by the Y-axis direction cutting portion; A pipe cutting method comprising a step of cutting in the X-axis direction from a location cut in the Y-axis direction at the X-axis direction cutting portion.
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JP5389587B2 (en) * 2009-09-24 2014-01-15 株式会社 クニテック Thin wall bent pipe member forming method and thin wall bent pipe member manufacturing apparatus
CN104626232A (en) * 2014-12-12 2015-05-20 柳州市志菱汽车配件有限公司 Automatic cutting process
KR200480628Y1 (en) * 2016-02-11 2016-06-16 유종석 Cutting apparatus
DE102017116498B4 (en) * 2017-07-21 2020-12-17 Mammut Werkzeugmaschinenfabrik Gmbh Trimming machine for trimming a container and method for trimming a container with the trimming machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5638718U (en) * 1979-08-28 1981-04-11
JPH02107417U (en) * 1989-02-13 1990-08-27
JPH02117817U (en) * 1989-03-13 1990-09-20
JPH03161213A (en) * 1989-11-16 1991-07-11 Masanobu Nakamura Cutting method of pipe and device therefor
JPH0419008A (en) * 1990-05-15 1992-01-23 Masanobu Nakamura Pipe cutting method and device
JPH04289099A (en) * 1991-03-15 1992-10-14 Matsushita Electric Works Ltd Cutting for square pipe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5638718U (en) * 1979-08-28 1981-04-11
JPH02107417U (en) * 1989-02-13 1990-08-27
JPH02117817U (en) * 1989-03-13 1990-09-20
JPH03161213A (en) * 1989-11-16 1991-07-11 Masanobu Nakamura Cutting method of pipe and device therefor
JPH0419008A (en) * 1990-05-15 1992-01-23 Masanobu Nakamura Pipe cutting method and device
JPH04289099A (en) * 1991-03-15 1992-10-14 Matsushita Electric Works Ltd Cutting for square pipe

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