JP2007021547A - Apparatus for working pipe - Google Patents

Apparatus for working pipe Download PDF

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JP2007021547A
JP2007021547A JP2005208858A JP2005208858A JP2007021547A JP 2007021547 A JP2007021547 A JP 2007021547A JP 2005208858 A JP2005208858 A JP 2005208858A JP 2005208858 A JP2005208858 A JP 2005208858A JP 2007021547 A JP2007021547 A JP 2007021547A
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pipe
driven
molding
drive
shaft
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Seiji Kume
セイジ 久米
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ASANO ENTERPRISES Inc
ASANO KK
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ASANO ENTERPRISES Inc
ASANO KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe working apparatus with which a bulged part or a grooved part is formed on a pipe by simple constitution. <P>SOLUTION: A driving and forming part 3 which is rotated with a driving rotary shaft 2 connecting to a driving means is installed on a supporting body 1. A driven forming part 5 provided with a pressing mechanism 14 which becomes a pressing means is installed. The pipe to be worked is inserted into the driving and forming part 3 and the driving forming part 3 is rotated by a driving means. The bulged part or the grooved part is formed on the pipe by pressing the driven forming part 5 against the driving forming part 3 by the pressing mechanism 14. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、金属製のパイプに、周方向の膨出部や溝部を成形するためのパイプ加工装置に関する。   The present invention relates to a pipe processing apparatus for forming a circumferential bulge or groove in a metal pipe.

従来、金属製のパイプに、図１１（ａ）に示すような膨出部を成形する方法として、型枠を用いたバルジ加工法が知られている。バルジ加工法によれば、膨出部に対応する溝を内面に形成した型枠をあらかじめ製作しておき、この型枠内に加工対象となる金属パイプを配置する。そして、金属パイプの中空部内にオイル等のプレス媒体を注入して圧力をかけることで、型枠に形成した溝部分に対応する金属パイプの一部分が押し出され、膨出部が形成される。
また、バルジ加工法以外にも、パイプの端末に膨出部を成形する場合は、プレス機器や専用のパイプ端末加工機器などが適用されることもある。 Conventionally, a bulging method using a mold is known as a method of forming a bulge as shown in FIG. 11A on a metal pipe. According to the bulge processing method, a mold having a groove corresponding to the bulging portion formed on the inner surface is manufactured in advance, and a metal pipe to be processed is placed in the mold. Then, by injecting a press medium such as oil into the hollow part of the metal pipe and applying pressure, a part of the metal pipe corresponding to the groove part formed in the mold is pushed out to form a bulging part.
In addition to the bulge processing method, in the case where the bulging portion is formed at the end of the pipe, a press device or a dedicated pipe end processing device may be applied.

特許文献１には、金属パイプに周方向の溝部を成形するパイプ溝入れ工具が開示されている。加工対象となるパイプは、一対の受けローラと溝入れローラとの間に挟まれた状態で回転駆動され、そして溝入れローラの周面に形成した環状突起が押し付けられることで、その押圧力で周溝が形成される。
特開２０００−２１０７２３号公報 Patent Document 1 discloses a pipe grooving tool for forming a circumferential groove in a metal pipe. The pipe to be processed is rotationally driven in a state sandwiched between a pair of receiving rollers and a grooving roller, and an annular projection formed on the peripheral surface of the grooving roller is pressed, so that the pressing force A circumferential groove is formed.
JP 2000-210723 A

上述したバルジ加工法は、パイプの外径や加工すべき膨出部の形状に合わせた型枠が必要であるため、設備コストが高価格となり、しかも作業工程も多く煩雑であった。
また、図１２に示すような種々の曲げ形状をしたパイプの端部付近に膨出部を成形する場合、膨出部を成形した後に、プレス機器による曲げ成形が行われていた。これは、膨出部の成形時にパイプの曲げ部分がプレス機器と干渉してしまうためである。しかし、先に膨出部を成形した場合は、膨出部が潰れないための逃し部がプレス機器の型に必要となる。このため、プレス型の成形作業が複雑になり大きな手間がかかっていた。
一方、特許文献１に開示されたパイプ溝入れ工具は、溝入れローラを回転するパイプの外周面に押し付けるだけの作用をもって、やや強引にパイプに溝を形成するため、加工精度はまったく期待することができなかった。 The above-described bulge processing method requires a mold that matches the outer diameter of the pipe and the shape of the bulged portion to be processed, so that the equipment cost is high and the work process is also complicated and complicated.
Further, when the bulging portion is formed in the vicinity of the end portion of the pipe having various bending shapes as shown in FIG. 12, after the bulging portion is formed, bending is performed by a press machine. This is because the bent portion of the pipe interferes with the press equipment when the bulging portion is formed. However, when the bulging part is formed first, a relief part for preventing the bulging part from being crushed is required for the mold of the press machine. For this reason, the press mold forming operation becomes complicated and takes a lot of time and effort.
On the other hand, the pipe grooving tool disclosed in Patent Document 1 has a function of simply pressing the grooving roller against the outer peripheral surface of the rotating pipe and slightly forcibly forms the groove in the pipe, so that the machining accuracy is completely expected. I could not.

本発明は、このような事情に鑑みてなされたもので、簡易な構成で設備コストが安く、高精度な膨出部や溝部を簡単な操作で成形することができるパイプ加工装置の提供を目的とする。   The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a pipe processing apparatus capable of forming a high-precision bulging portion and groove portion with a simple operation with a simple configuration and low equipment cost. And

上記目的を達成するために、本発明は、周方向に延在する膨出部または溝部をパイプに成形するためのパイプ加工装置であって、駆動側回転軸および従動側支軸と、これら各軸を略平行に配置するとともに、各軸の一端部を側方に延出させ、かつ少なくとも駆動側回転軸を回転自在に支持する支持体と、駆動側回転軸の延出部に設けられた駆動成形部と、従動側支軸の延出部に設けられた従動成形部と、駆動側回転軸および従動側支軸を相対移動させることにより、駆動成形部と従動成形部との間の間隔を変える押圧手段と、駆動側回転軸を回転駆動する駆動手段とを備え、従動側支軸は、少なくとも従動成形部が回転自在となっており、駆動成形部または従動成形部の一方にパイプを嵌め込み、これら各成形部が協働して当該パイプに膨出部または溝部を成形する構成としたことを特徴とする。   In order to achieve the above object, the present invention provides a pipe machining apparatus for forming a bulging portion or groove portion extending in the circumferential direction into a pipe, and includes a driving side rotating shaft and a driven side supporting shaft, The shafts are arranged substantially in parallel, and one end portion of each shaft is extended to the side, and at least the support side rotation shaft is rotatably supported, and provided on the extension portion of the drive side rotation shaft The distance between the drive molding part and the driven molding part by relatively moving the drive molding part, the driven molding part provided in the extension part of the driven side spindle, and the drive side rotating shaft and the driven side spindle. And a driving means for rotationally driving the driving side rotating shaft, and at least the driven forming portion of the driven side support shaft is rotatable, and a pipe is provided on one of the driving forming portion or the driven forming portion. Fitting, these molding parts swell together in the pipe Or characterized by being configured to mold the groove portion.

かかる構成のパイプ加工装置によれば、パイプの外径や加工すべき膨出部の形状に合わせた型枠を製作する必要なく、簡易な構成で設備コストが安価である。しかも、駆動成形部または従動成形部の一方にパイプを嵌め込み、駆動側回転軸を回転駆動するとともに、駆動成形部と従動成形部との間でパイプを押圧するだけの簡単な操作で、高精度な膨出部や溝部を成形することができる。   According to the pipe processing apparatus having such a configuration, it is not necessary to manufacture a formwork that matches the outer diameter of the pipe and the shape of the bulging portion to be processed, and the equipment cost is low with a simple configuration. In addition, the pipe is fitted into one of the drive molding part or the driven molding part, and the drive-side rotary shaft is driven to rotate, and the pipe is pressed between the drive molding part and the driven molding part with high precision. Bulges and grooves can be formed.

ここで、パイプに膨出部や溝部を形成するために、駆動成形部および従動成形部には、その一方に周方向に延在する成形用凸部を形成するとともに、他方には周方向に延在する成形用凹部を形成しておくことが好ましい。   Here, in order to form the bulging part and the groove part in the pipe, the driving molding part and the driven molding part are formed with a molding convex part extending in the circumferential direction on one side and in the circumferential direction on the other side. It is preferable to form an extending molding recess.

駆動成形部は、駆動側回転軸の延出部に一体形成されており、駆動側回転軸とともに支持体から着脱自在であることが好ましい。また、従動成形部は、従動側支軸とは別の部品として構成され、従動側支軸の延出部に着脱自在となっていることが好ましい。
駆動成形部と駆動側回転軸を一体形成することにより、駆動手段からの回転駆動力を駆動成形部へ確実に伝達することができる。
また、駆動成形部を駆動側回転軸とともに支持体から着脱自在とするとともに、従動成形部を従動側支軸から着脱自在とすることで、各種形状寸法の膨出部や溝部の成形に適した複数の駆動成形部と従動成形部を用意し、適宜交換するだけで種々の膨出部や溝部を簡易に成形可能となる。 The drive molding part is preferably formed integrally with the extending part of the drive side rotary shaft, and is detachable from the support together with the drive side rotary shaft. Moreover, it is preferable that the driven molding part is comprised as components different from the driven side spindle, and is detachably attached to the extension part of the driven side spindle.
By integrally forming the drive molding part and the drive side rotary shaft, the rotational driving force from the drive means can be reliably transmitted to the drive molding part.
In addition, the drive molding part is detachable from the support together with the drive side rotation shaft, and the driven molding part is detachable from the driven side support shaft, so that it is suitable for molding bulging parts and groove parts of various shapes and dimensions. It is possible to easily form various bulging portions and groove portions by preparing a plurality of drive forming portions and driven forming portions and replacing them appropriately.

また、押圧手段は、駆動側回転軸に対して従動側支軸を移動させる構成とすることが好ましい。このようにすれば、駆動側回転軸を移動させることなく、当該駆動側回転軸に回転駆動力を伝えることができるので、その駆動力伝達機構が簡単になり、しかも確実に回転駆動力を伝えることが可能となる。   Further, it is preferable that the pressing means is configured to move the driven side support shaft with respect to the drive side rotation shaft. In this way, since the rotational driving force can be transmitted to the driving side rotational shaft without moving the driving side rotational shaft, the driving force transmission mechanism is simplified and the rotational driving force is reliably transmitted. It becomes possible.

駆動成形部及び従動成形部によって挟持される曲げ形状をしたパイプの回転軌道から、当該パイプと干渉する障害物を排除した構成とすれば、曲げ形状をしたパイプに膨出部を形成することが可能となる。   If the configuration is such that obstacles interfering with the pipe are excluded from the rotation trajectory of the bent pipe sandwiched between the drive molding section and the driven molding section, the bulging section can be formed on the bent pipe. It becomes possible.

以上説明したように、本発明によれば、簡易な構成で設備コストが安く、高精度な膨出部や溝部を簡単な操作で成形することができる。   As described above, according to the present invention, the equipment cost is low with a simple configuration, and a high-precision bulge or groove can be formed by a simple operation.

以下、この発明の実施の形態について図面を参照して詳細に説明する。
図１乃至図１０は、本発明の実施形態に係るパイプ加工装置を示す図であり、図１は、パイプ加工装置の全体構成を示す斜視図、図２は、パイプ加工装置の全体構成を示す側面図である。また、図３は、パイプ加工装置の各軸の先端部側を示す図であり、（ａ）は正面図、（ｂ）は側面断面図、（ｃ）は（ａ）のＡ-Ａ線断面図である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 10 are views showing a pipe processing apparatus according to an embodiment of the present invention. FIG. 1 is a perspective view showing an overall configuration of the pipe processing apparatus. FIG. 2 shows an overall configuration of the pipe processing apparatus. It is a side view. FIG. 3 is a view showing the tip side of each axis of the pipe machining apparatus, where (a) is a front view, (b) is a side cross-sectional view, and (c) is a cross-sectional view taken along line AA in (a). FIG.

図１に示すように、本実施形態のパイプ加工装置は、支持体１と、駆動側回転軸２と、駆動成形部３と、従動側支軸４と、従動成形部５と、を備えている。   As shown in FIG. 1, the pipe machining apparatus according to the present embodiment includes a support 1, a drive side rotating shaft 2, a drive forming unit 3, a driven side support shaft 4, and a driven forming unit 5. Yes.

支持体１は、基盤１０および左右一対の支柱１１によって構成される。基盤１０は、例えば、作業台の縁部から突き出すようにして配設される。一対の支柱１１は、一定の間隔をあけて基盤１０の上面に起立するように設置してある。両支柱１１には、基端から任意の高さ位置まで切欠部１２が形成してある。この切欠部１２には、後述する押圧機構１４（押圧手段）が組み込まれる。なお、基盤１０の切欠部１２と対向する部位には、ねじ孔１３（図３（ａ）参照）が形成してある。   The support 1 is composed of a base 10 and a pair of left and right columns 11. The board | substrate 10 is arrange | positioned so that it may protrude from the edge of a work table, for example. A pair of support | pillars 11 are installed so that it may stand on the upper surface of the base | substrate 10 with a fixed space | interval. Both struts 11 are formed with notches 12 from the base end to any height position. The notch portion 12 incorporates a pressing mechanism 14 (pressing means) described later. A screw hole 13 (see FIG. 3A) is formed in a portion of the base 10 that faces the notch 12.

駆動側回転軸２および従動側支軸４は、上下に一定の間隔をあけて平行に配置され、一対の支柱１１によって回転自在に支持されている。駆動成形部３は駆動側回転軸２の一端部に一体形成してあり、また従動成形部５は従動側支軸４の一端部に装着されている。   The driving side rotating shaft 2 and the driven side supporting shaft 4 are arranged in parallel with a certain interval in the vertical direction, and are rotatably supported by a pair of support columns 11. The drive molding unit 3 is integrally formed with one end of the drive side rotating shaft 2, and the driven molding unit 5 is attached to one end of the driven side support shaft 4.

押圧機構１４は、駆動側回転軸２および従動側支軸４を相対移動させることにより、駆動成形部３と従動成形部５との間の間隔を変える機能を有している。この押圧機構１４は、軸受ブロック１５、雄ねじ１６、および押圧用ハンドル１７で構成される。
軸受ブロック１５は、各支柱１１に形成した切欠部１２内にそれぞれ配置してあり、両側面が図３（ｃ）に示すごとく、支柱１１の内縁部と係合し、支柱１１に沿って上下方向に摺動自在となっている。
雄ねじ１６は、基盤１０に形成したねじ孔１３に螺合している。雄ねじ１６の上端は、軸受ブロック１５に当接している。
押圧用ハンドル１７は、雄ねじ１６の下端に装着してあり、この押圧用ハンドル１７を回転操作することにより、雄ねじ１６を介して軸受ブロック１５を押し上げることができる。 The pressing mechanism 14 has a function of changing the interval between the drive molding unit 3 and the driven molding unit 5 by relatively moving the driving side rotating shaft 2 and the driven side supporting shaft 4. The pressing mechanism 14 includes a bearing block 15, a male screw 16, and a pressing handle 17.
The bearing blocks 15 are respectively arranged in the notches 12 formed in the respective columns 11, and both side surfaces engage with the inner edge of the columns 11 as shown in FIG. It is slidable in the direction.
The male screw 16 is screwed into a screw hole 13 formed in the base 10. The upper end of the male screw 16 is in contact with the bearing block 15.
The pressing handle 17 is attached to the lower end of the male screw 16, and the bearing block 15 can be pushed up via the male screw 16 by rotating the pressing handle 17.

各軸受ブロック１５には、支軸用ベアリング１８が組み込んであり、従動側支軸４はこの支持用ベアリング１８によって回転自在に支持されている。また、図２に示すように、各支柱１１の上部には、回転軸用ベアリング１９が組み込んであり、駆動側回転軸２はこの回転軸用ベアリング１９によって回転自在に支持されている。   Each bearing block 15 incorporates a bearing 18 for a support shaft, and the driven support shaft 4 is rotatably supported by the support bearing 18. As shown in FIG. 2, a rotary shaft bearing 19 is incorporated in the upper portion of each column 11, and the drive side rotary shaft 2 is rotatably supported by the rotary shaft bearing 19.

駆動側回転軸２の基端部付近には、一方の支柱１１を間に挟んで、着脱用リング２０と回転用リング２２とが装着してある。着脱用リング２０は、支柱１１の内側に位置しており、着脱用ねじ２１で駆動側回転軸２に固定してある。回転用リング２２は、支柱１１の外側に位置し、駆動用ハンドル２４（駆動手段）とともに固定ねじ２３をもって駆動側回転軸２に装着されている。これら着脱用リング２０と回転用リング２２により、駆動側回転軸２の軸方向の移動（抜け）が規制されている。
駆動用ハンドル２４は、駆動回転軸２を回転操作するための部品である。 An attachment / detachment ring 20 and a rotation ring 22 are mounted in the vicinity of the base end portion of the drive side rotation shaft 2 with one support column 11 interposed therebetween. The attachment / detachment ring 20 is located inside the support column 11 and is fixed to the drive-side rotating shaft 2 by an attachment / detachment screw 21. The rotation ring 22 is located outside the support column 11 and is attached to the drive side rotary shaft 2 with a fixing screw 23 together with a drive handle 24 (drive means). The attaching / detaching ring 20 and the rotating ring 22 restrict the movement (detachment) of the driving-side rotating shaft 2 in the axial direction.
The drive handle 24 is a component for rotating the drive rotary shaft 2.

図３（ｂ）に示すように、駆動側回転軸２の先端部２５は、支柱１１の側方に延出しており、この先端部２５（延出部）に駆動成形部３が一体形成してある。このように、駆動成形部３を駆動回転軸２に一体形成することで剛性が高まり、駆動用ハンドル２４の駆動力を、駆動側回転軸２を介して駆動成形部３へ確実に伝達することができる。   As shown in FIG. 3B, the distal end portion 25 of the drive side rotating shaft 2 extends to the side of the support column 11, and the drive molding portion 3 is integrally formed with the distal end portion 25 (extension portion). It is. As described above, the drive molding portion 3 is integrally formed with the drive rotary shaft 2, so that the rigidity is increased, and the driving force of the drive handle 24 is reliably transmitted to the drive molding portion 3 through the drive side rotary shaft 2. Can do.

既述したように、従動側支軸４は、軸受ブロック１５に組み込まれた支軸用ベアリング１８によって回転自在に支持されている（図２参照）。
従動側支軸４の基端部付近には、一方の軸受ブロック１５を間に挟んで、着脱用リング４０と座金４２とが装着してある。着脱用リング４０は、軸受用ブロック１５の内側に位置しており、着脱用ねじ４１で従動側支軸４に固定してある。座金４２は、軸受用ブロック１５の外側に位置し、固定ねじ４３をもって従動側支軸４に装着されている。これら着脱用リング４０と座金４２により、従動側支軸４の軸方向の移動（抜け）が規制されている。 As described above, the driven side support shaft 4 is rotatably supported by the support shaft bearing 18 incorporated in the bearing block 15 (see FIG. 2).
An attachment / detachment ring 40 and a washer 42 are mounted in the vicinity of the base end portion of the driven side support shaft 4 with one bearing block 15 interposed therebetween. The attachment / detachment ring 40 is positioned inside the bearing block 15 and is fixed to the driven side support shaft 4 by an attachment / detachment screw 41. The washer 42 is positioned outside the bearing block 15 and is attached to the driven side support shaft 4 with a fixing screw 43. The attachment / detachment ring 40 and the washer 42 restrict the axial movement (detachment) of the driven support shaft 4.

図３（ｂ）に示すように、従動側支軸４の先端部４４は、支柱１１の側方に延出しており、この先端部４４（延出部）に従動成形部５が別の部品として装着されている。従動成形部５は、中心軸に沿って装着孔が穿設してあり、従動側支軸４の先端部４４に外嵌した状態で、従動成形用ねじ５０をもって締結される構成となっている。従動側支軸４には、従動成形部５の装着端に段差４５が形成してあり、従動成形部５は、この段差４５と従動成形用ねじ５０との間で保持される。
従動成形部５を別の部品として従動側支軸４に着脱自在とすることで、各種の従動成形部５を用意しておき、一本の従動側支軸４に対し適宜選択して装着可能となる。 As shown in FIG. 3 (b), the distal end portion 44 of the driven side support shaft 4 extends to the side of the column 11, and the driven molding portion 5 is a separate component from the distal end portion 44 (extended portion). It is installed as. The driven molding portion 5 has a mounting hole formed along the central axis, and is configured to be fastened with a driven molding screw 50 in a state of being fitted around the distal end portion 44 of the driven side support shaft 4. . The driven side support shaft 4 is formed with a step 45 at the mounting end of the driven forming portion 5, and the driven forming portion 5 is held between the step 45 and the driven forming screw 50.
By making the driven molding portion 5 as a separate part detachable from the driven side support shaft 4, various driven molding portions 5 are prepared, and can be appropriately selected and mounted on one driven side support shaft 4. It becomes.

駆動成形部３には、所定の位置に周方向に延在する成形用凸部３０が形成してある。一方、従動成形部５には、周方向に延在する成形用凹部５１が形成してある。これら成形用凸部３０と成形用凹部５１は、加工対象であるパイプの周面に成形する膨出部に合わせての形状や寸法が設定される。
駆動成形部３および従動成形部５は、成形用凸部３０と成形用凹部５１とが上下に対向するように配置される。 The drive molding portion 3 is formed with a molding convex portion 30 extending in the circumferential direction at a predetermined position. On the other hand, the driven molding portion 5 is formed with a molding recess 51 extending in the circumferential direction. The shape and dimensions of the forming convex portion 30 and the forming concave portion 51 are set in accordance with the bulging portion formed on the peripheral surface of the pipe to be processed.
The drive molding part 3 and the driven molding part 5 are arranged so that the molding convex part 30 and the molding concave part 51 face each other vertically.

図４は、パイプ加工装置による膨出部の成形工程を示す側面断面図であり、（ａ）は成形前の状態、（ｂ）は成形後の状態を示している。
図４（ａ）に示すように、まず、駆動成形部３にパイプＰを嵌め込む。このとき、従動成形部５と駆動成形部３との間には、パイプＰが挿入配置できる程度の隙間をあけておく。
駆動成形部３ｂにパイプＰを嵌め込んだ後、押圧用ハンドル１７を回して、徐々に軸受ブロック１５を上昇させるとともに、駆動用ハンドル２４を回して駆動成形部３を回転させる。軸受ブロック１５の上昇にともなって、従動成形部５が上方向（駆動成形部３に接近する方向）へ移動していく。この従動成形部５の移動により、駆動成形部３と従動成形部５との間にパイプＰが挟持され、その後は、駆動成形部３の回転にパイプＰと従動成形部５とが連れ回りするようになる。
この状態で、押圧用ハンドル１７を更に回して従動成形部５に押圧力を加えていくと、成形用凸部３０と成形用凹部５１との間でパイプＰがプレスされ、その周面に膨出部Ｂが成形される（図４（ｂ）参照）。 FIGS. 4A and 4B are side cross-sectional views showing the forming process of the bulging portion by the pipe processing apparatus, where FIG. 4A shows a state before forming, and FIG. 4B shows a state after forming.
As shown in FIG. 4A, first, the pipe P is fitted into the drive molding portion 3. At this time, a gap is formed between the driven molding unit 5 and the drive molding unit 3 so that the pipe P can be inserted and arranged.
After fitting the pipe P into the drive molding portion 3b, the pressing handle 17 is rotated to gradually raise the bearing block 15, and the drive handle 24 is rotated to rotate the drive molding portion 3. As the bearing block 15 rises, the driven molding portion 5 moves upward (in the direction approaching the drive molding portion 3). Due to the movement of the driven molding unit 5, the pipe P is sandwiched between the drive molding unit 3 and the driven molding unit 5, and thereafter, the pipe P and the driven molding unit 5 are rotated along with the rotation of the drive molding unit 3. It becomes like this.
In this state, when the pressing handle 17 is further rotated to apply a pressing force to the driven molding portion 5, the pipe P is pressed between the molding convex portion 30 and the molding concave portion 51, and the peripheral surface thereof expands. A protruding portion B is formed (see FIG. 4B).

図５は、本実施形態に係るパイプ加工装置によりパイプに溝部を成形する場合の構成を示す側面断面図である。
上述した構成では、パイプの周面に膨出部を成形することができたが、本実施形態のパイプ加工装置によれば、簡単な部品交換をもって、パイプの周面に溝部を成形することもできる。 FIG. 5 is a side cross-sectional view showing a configuration when a groove is formed in a pipe by the pipe processing apparatus according to the present embodiment.
In the configuration described above, the bulging portion could be formed on the peripheral surface of the pipe. However, according to the pipe processing apparatus of the present embodiment, the groove portion can also be formed on the peripheral surface of the pipe with simple component replacement. it can.

すなわち、パイプの周面に溝部を成形する場合は、成形用凹部３１が周面に形成された駆動成形部３と、成形用凸部５２が周面に形成された従動成形部５とを用いる。
本実施形態では、駆動成形部３を駆動側回転軸２と一体に形成してあるので、駆動成形部３は駆動側回転軸２といっしょに交換することになる。
駆動側回転軸２から着脱用ねじ２１と固定ねじ２３を取りはずせば（図２参照）、着脱用リング２０の固定状態が解除されるとともに、回転用リング２２および駆動用ハンドル２４が駆動側回転軸２からはずれる。これにより、駆動側回転軸２を回転軸用ベアリング１９から引き抜くことができるようになる。
続いて、逆の手順で成形用凹部３１が周面に形成された駆動成形部３を、回転軸用ベアリング１９に装着すればよい。 That is, when the groove is formed on the peripheral surface of the pipe, the drive forming portion 3 in which the forming concave portion 31 is formed on the peripheral surface and the driven forming portion 5 in which the forming convex portion 52 is formed on the peripheral surface are used. .
In the present embodiment, since the drive molding unit 3 is formed integrally with the drive side rotary shaft 2, the drive molding unit 3 is exchanged together with the drive side rotary shaft 2.
When the attaching / detaching screw 21 and the fixing screw 23 are removed from the driving side rotating shaft 2 (see FIG. 2), the attaching / detaching ring 20 is released from the fixed state, and the rotating ring 22 and the driving handle 24 rotate on the driving side. Deviates from axis 2. As a result, the drive-side rotary shaft 2 can be pulled out from the rotary shaft bearing 19.
Subsequently, the drive molding portion 3 in which the molding recess 31 is formed on the circumferential surface in the reverse procedure may be attached to the rotary shaft bearing 19.

従動側成形部５は、従動用成形ねじ５０を外すことで、従動側支軸との固定が解除され、支持体１から抜き出すことができる。したがって、成形用凹部５１から成形用凸部５２へ簡単に交換することができる。   The driven-side molded portion 5 can be removed from the support 1 by being removed from the driven-side support shaft by removing the driven molding screw 50. Therefore, the molding recess 51 can be easily replaced with the molding projection 52.

図６は、本実施形態に係るパイプ加工装置により曲げ形状のパイプに膨出部を成形する場合を示す側面断面図である。
図６に示すように、パイプ加工措置は、駆動成形部３と従動成形部５が支柱１１の側面から突き出るように設けられ、且つ、その側面には他の部材が延出していない。このため、膨出部及び溝部の成形時に、各成形部３、５によって曲げ形状のパイプ（図１２（ｂ）参照）が回転しても、他の部材に干渉することがない。したがって、パイプ加工装置は、棒状のパイプだけでなく、すでに曲げ形状に形成されたパイプでも、膨出部または溝部を成形することができる。 FIG. 6 is a side cross-sectional view showing a case where a bulging portion is formed on a bent pipe by the pipe machining apparatus according to the present embodiment.
As shown in FIG. 6, the pipe processing measure is provided so that the drive molding portion 3 and the driven molding portion 5 protrude from the side surface of the support column 11, and no other members extend on the side surface. For this reason, even when a bent pipe (see FIG. 12B) is rotated by the molding parts 3 and 5 during molding of the bulging part and the groove part, it does not interfere with other members. Therefore, the pipe processing apparatus can form the bulging portion or the groove portion not only with the rod-shaped pipe but also with the pipe already formed in a bent shape.

以上のように、本実施形態に係るパイプ加工装置は簡単な構造で安価に製作でき、しかも、簡単な操作で膨出部や溝部をパイプに成形できる。
なお、本発明のパイプ加工装置は、上述した一実施形態に限定されるものではなく、例えば、以下に示すような変形例や応用例をもって構成することも可能である。 As described above, the pipe processing apparatus according to the present embodiment can be manufactured with a simple structure at low cost, and the bulging portion and the groove portion can be formed into a pipe by a simple operation.
In addition, the pipe processing apparatus of this invention is not limited to one Embodiment mentioned above, For example, it is also possible to comprise with the modification and application example as shown below.

図７に示すように、駆動側回転軸２と駆動成形部３は、別体に構成してもよい。駆動成形部３は、駆動側回転軸２の先端部２５に外嵌され、段差２６と駆動成形用ねじ３２との間で保持される。駆動成形部３を別体にすることで、その交換が容易となる。
一方、従動側支軸４と従動成形部５を、一体形成することもできる。 As shown in FIG. 7, the drive-side rotating shaft 2 and the drive molding unit 3 may be configured separately. The drive molding portion 3 is fitted on the tip end portion 25 of the drive side rotating shaft 2 and is held between the step 26 and the drive molding screw 32. By making the drive molding part 3 separate, the replacement becomes easy.
On the other hand, the driven side support shaft 4 and the driven forming portion 5 can be integrally formed.

さて、図６に示したように、曲げ形状のパイプに膨出部または溝部を形成するような場合、回転に伴いパイプの重心位置が変化するため、駆動成形部３と従動成形部５との間の挟持点（支点）に触れが生じるおそれがある。パイプの回転が遅いときや、作業員が人手をもって支える等の対応をした場合はさほど問題とならないが、パイプの回転が速くなると、この振れの影響が無視し得なくなる。   Now, as shown in FIG. 6, when a bulging part or a groove part is formed in a bent pipe, the center of gravity position of the pipe changes with rotation, so that the drive molding part 3 and the driven molding part 5 There is a risk of touching the pinching point (fulcrum) between them. There is no problem when the pipe is slow to rotate or when the worker supports it manually. However, if the pipe rotates faster, the influence of this vibration cannot be ignored.

その場合は、パイプ支持手段を設け、駆動成形部３と従動成形部５との間の挟持点とは別の位置でもパイプを支持する構成とすることが好ましい。
例えば、図８に示すように、弾力性を有するパイプ支持体３３、５３をパイプ支持手段として、各成形部３、５の先端部に設けることができる。パイプ支持体３３、５３によって、パイプは、駆動成形部３及び従動成形部５とは別の回転軸上の位置でも挟持され、支点が２箇所になる。このため、膨出部及び溝部の成形時に生じるパイプ自体の振れが抑えられ、曲げ形状のパイプでも精度の高い加工が可能となる。なお、パイプ支持手段は、図８に示した構成に限定されないことは勿論である。 In that case, it is preferable that a pipe support means is provided so that the pipe is supported even at a position different from the clamping point between the drive molding unit 3 and the driven molding unit 5.
For example, as shown in FIG. 8, the pipe supports 33 and 53 having elasticity can be provided as pipe support means at the tip portions of the molding parts 3 and 5. The pipe supports 33 and 53 hold the pipe at a position on the rotation axis different from that of the drive molding unit 3 and the driven molding unit 5 and have two supporting points. For this reason, the vibration of the pipe itself that occurs during the formation of the bulging portion and the groove portion is suppressed, and even a bent pipe can be processed with high accuracy. Needless to say, the pipe support means is not limited to the structure shown in FIG.

図９（ａ）（ｂ）に示すように、駆動成形部３と従動成形部５には、複数の成形用凸部３０，５２や成形用凹部３１，５１を並べて形成してもよい。また、図９（ｃ）（ｄ）に示すように、成形用凸部３０と成形用凹部３１を並べて駆動成形部３に形成するとともに、対応する従動成形部５には、成形用凸部５２と成形用凹部５１を並べて形成することもできる。これに限らず、駆動成形部３と従動成形部５の周面には、パイプの周面に形成する膨出部や溝部の本数、形状、寸法等に対応して、任意に成形用凸部や成形用凹部を形成することが可能である。   As shown in FIGS. 9A and 9B, the drive molding portion 3 and the driven molding portion 5 may be formed by arranging a plurality of molding convex portions 30 and 52 and molding concave portions 31 and 51 side by side. Further, as shown in FIGS. 9C and 9D, the molding convex portion 30 and the molding concave portion 31 are formed side by side in the drive molding portion 3, and the corresponding driven molding portion 5 has a molding convex portion 52. And the molding recess 51 can be formed side by side. Not limited to this, the peripheral surfaces of the drive molding portion 3 and the driven molding portion 5 are arbitrarily shaped convex portions corresponding to the number, shape, dimensions, etc. of the bulging portions and groove portions formed on the peripheral surface of the pipe. It is possible to form a molding recess.

駆動側回転軸２と従動側支軸４の配置を上下逆転し、上側に従動側支軸４を、下側に駆動側回転軸２を配置した構成としてもよい。押圧手段は、従動側支軸４を駆動側回転軸２に向けて押圧する構成に限定されず、駆動側回転軸２を従動側支軸４に向けて押圧する構成としてもよい。   The arrangement of the drive side rotating shaft 2 and the driven side support shaft 4 may be reversed upside down, and the upper driven side support shaft 4 may be arranged on the lower side and the drive side rotating shaft 2 may be arranged on the lower side. The pressing means is not limited to the configuration in which the driven side support shaft 4 is pressed toward the drive side rotation shaft 2, and the drive side rotation shaft 2 may be pressed toward the driven side support shaft 4.

図１０に示すように、モータ等の回転駆動装置６０によって駆動側回転軸２を回転駆動する構成とすることもできる。回転駆動装置６０は、スイッチ６１を入れるだけで駆動成形部３を自動的に回転駆動するので、作業性が格段に向上する。   As shown in FIG. 10, the drive-side rotary shaft 2 can be rotationally driven by a rotary drive device 60 such as a motor. Since the rotation driving device 60 automatically rotates and drives the drive molding unit 3 only by turning on the switch 61, workability is remarkably improved.

さらに、油圧装置６２（例えば、油圧シリンダ）等の機器を用いて押圧手段を構成することもできる。ここで、回転駆動装置６０により駆動側回転軸２を自動回転させるとともに、フットスイッチ６３によって油圧装置６２をＯＮ／ＯＦＦできる構成にすれば、作業員はパイプの操作に両手を使うことができ、いっそう作業性が向上するとともに、パイプの加工精度を格段に上げることが可能となる。
また、本発明のパイプ加工装置は、回転駆動装置６０と油圧装置６２をマイコン制御した自動装置に構成することも可能である。 Furthermore, the pressing means can be configured using a device such as a hydraulic device 62 (for example, a hydraulic cylinder). Here, if the rotation side drive shaft 60 is automatically rotated by the rotation drive device 60 and the hydraulic device 62 is turned ON / OFF by the foot switch 63, the worker can use both hands for the operation of the pipe. The workability is further improved and the processing accuracy of the pipe can be remarkably increased.
Further, the pipe machining apparatus of the present invention can also be configured as an automatic apparatus in which the rotation drive device 60 and the hydraulic device 62 are controlled by a microcomputer.

本発明の実施形態に係るパイプ加工装置の全体構成を示す斜視図である。It is a perspective view showing the whole pipe processing device composition concerning an embodiment of the present invention. 同パイプ加工装置の全体構成を示す側面図である。It is a side view which shows the whole structure of the pipe processing apparatus. 同パイプ加工装置の各軸の延出部側を示す図であり、（ａ）は正面図、（ｂ）は側面断面図、（ｃ）は（ａ）のＡ-Ａ線断面図である。It is a figure which shows the extension part side of each axis | shaft of the pipe processing apparatus, (a) is a front view, (b) is side surface sectional drawing, (c) is the sectional view on the AA line of (a). 同パイプ加工装置による膨出部の成形工程を示す側面断面図であり、（ａ）は成形前の状態、（ｂ）は成形後の状態を示している。It is side surface sectional drawing which shows the formation process of the bulging part by the same pipe processing apparatus, (a) has shown the state before shaping | molding, (b) has shown the state after shaping | molding. 本実施形態に係るパイプ加工装置によりパイプに溝部を成形する場合の構成を示す側面断面図である。It is side surface sectional drawing which shows the structure in the case of shape | molding a groove part in a pipe with the pipe processing apparatus which concerns on this embodiment. 本実施形態に係るパイプ加工装置により曲げ形状のパイプに膨出部を成形する場合を示す側面断面図である。It is side surface sectional drawing which shows the case where a bulging part is shape | molded by the pipe processing apparatus which concerns on this embodiment in a bending-shaped pipe. 本発明のパイプ加工装置の変形例・応用例を示す側面断面図である。It is side surface sectional drawing which shows the modification and application example of the pipe processing apparatus of this invention. 本発明のパイプ加工装置の他の変形例・応用例を示す側面断面図である。It is side surface sectional drawing which shows the other modification and application example of the pipe processing apparatus of this invention. 本発明のパイプ加工装置の更に他の変形例・応用例を示す側面図である。It is a side view which shows the other modification and application example of the pipe processing apparatus of this invention. 本発明のパイプ加工装置の更に他の変形例・応用例を示す概要図である。It is a schematic diagram which shows the other modification and application example of the pipe processing apparatus of this invention. パイプの成形例を示す斜視図である。It is a perspective view which shows the example of shaping | molding of a pipe. 曲げ形状のパイプの成形例を示す斜視図である。It is a perspective view which shows the example of shaping | molding of a bending-shaped pipe.

符号の説明Explanation of symbols

１：支持体、２：駆動側回転軸、３：駆動成形部、４：従動側支軸、５従動成形部、
１０：基盤、１１：支柱、１２：切欠部、１３：雌ねじ部、
１４：押圧機構、１５：軸受ブロック、１６：雄ねじ、１７：押圧用ハンドル、
１８：支軸用ベアリング、１９：回転軸用ベアリング、
２０：着脱用リング（駆動側回転軸）、２１：着脱用ねじ（駆動側回転軸）、
２２：回転用リング、２３：固定ねじ（駆動側回転軸）、２４：駆動用ハンドル、
２５：先端部（駆動側回転軸）、２６：段差（駆動側回転軸）
３０：成形用凸部（駆動成形部）、３１：成形用凹部（駆動成形部）、
３２：駆動成形用ねじ、３３：パイプ支持体（駆動成形部）、
４０：着脱用リング（従動側支軸）、４１：着脱用ねじ（従動側支軸）、４２：座金、
４３：固定ねじ（従動側支軸）、４４：先端部（従動側支軸）、
４５：段差（従動側支軸）、
５０：従動成形用ねじ、５１：成形用凹部（従動成形部）、
５２：成形用凸部（従動成形部）、５３：パイプ支持体（従動成形部）
６０：回転駆動装置、６２：油圧装置、６３：フットスイッチ
1: support body, 2: drive side rotating shaft, 3: drive forming part, 4: driven side support shaft, 5 driven forming part,
10: base, 11: support, 12: notch, 13: female thread,
14: pressing mechanism, 15: bearing block, 16: male screw, 17: pressing handle,
18: Bearing for support shaft, 19: Bearing for rotating shaft,
20: Ring for attaching / detaching (drive side rotating shaft), 21: Screw for attaching / detaching (driving side rotating shaft),
22: Ring for rotation, 23: Fixing screw (drive-side rotating shaft), 24: Drive handle,
25: Tip portion (drive-side rotation shaft), 26: Step (drive-side rotation shaft)
30: Molding convex part (drive molding part), 31: Molding concave part (drive molding part),
32: Screw for drive molding, 33: Pipe support (drive molding part),
40: Detachable ring (driven side spindle), 41: Detachable screw (driven side spindle), 42: Washer,
43: fixing screw (driven side spindle), 44: tip (driven side spindle),
45: Step (driven spindle),
50: Screw for driven molding, 51: Recess for molding (driven molding part),
52: convex part for molding (driven molding part), 53: pipe support (driven molding part)
60: Rotation drive device, 62: Hydraulic device, 63: Foot switch

Claims (6)

周方向に延在する膨出部または溝部をパイプに成形するためのパイプ加工装置であって、
駆動側回転軸および従動側支軸と、
これら各軸を略平行に配置するとともに、各軸の一端部を側方に延出させ、かつ少なくとも前記駆動側回転軸を回転自在に支持する支持体と、
前記駆動側回転軸の延出部に設けられた駆動成形部と、
前記従動側支軸の延出部に設けられた従動成形部と、
前記駆動側回転軸および前記従動側支軸を相対移動させることにより、前記駆動成形部と従動成形部との間の間隔を変える押圧手段と、
前記駆動側回転軸を回転駆動する駆動手段とを備え、
前記従動側支軸は、少なくとも前記従動成形部が回転自在となっており、
前記駆動成形部または従動成形部の一方にパイプを嵌め込み、これら各成形部が協働して当該パイプに膨出部または溝部を成形する構成のパイプ加工装置。 A pipe processing device for forming a bulging portion or groove portion extending in the circumferential direction into a pipe,
A driving side rotating shaft and a driven side supporting shaft;
These shafts are arranged substantially in parallel, and one end of each shaft extends laterally, and at least the support-side rotating shaft is rotatably supported.
A drive molding part provided in the extension part of the drive side rotary shaft;
A driven molding portion provided at an extension portion of the driven side support shaft;
A pressing means for changing an interval between the drive molding portion and the driven molding portion by relatively moving the drive side rotation shaft and the driven side support shaft;
Drive means for rotationally driving the drive side rotary shaft;
The driven side spindle has at least the driven molding portion rotatable,
A pipe machining apparatus configured to fit a pipe into one of the drive molding section or the driven molding section, and to form a bulging section or a groove section in the pipe in cooperation with each other. 前記駆動成形部および従動成形部は、一方が周方向に延在する成形用凸部を有し、他方が周方向に延在する成形用凹部を有することを特徴とする請求項１のパイプ加工装置。 2. The pipe processing according to claim 1, wherein one of the drive molding portion and the driven molding portion has a molding convex portion extending in the circumferential direction and the other has a molding concave portion extending in the circumferential direction. apparatus. 前記駆動成形部は、前記駆動側回転軸の延出部に一体形成されており、
前記駆動側回転軸とともに前記支持体から着脱自在であることを特徴とする請求項１または２のパイプ加工装置。 The drive molding part is integrally formed with the extension part of the drive side rotating shaft,
3. The pipe machining apparatus according to claim 1, wherein the pipe machining apparatus is detachable from the support body together with the driving side rotating shaft. 前記従動成形部は、前記従動側支軸とは別の部品として構成され、前記従動側支軸の延出部に着脱自在となっていることを特徴とする請求項１乃至３のいずれか一項に記載のパイプ加工装置。 4. The driven molding portion is configured as a part different from the driven side support shaft, and is detachable from an extension portion of the driven side support shaft. The pipe processing apparatus according to item. 前記押圧手段は、前記駆動側回転軸に対して前記従動側支軸を移動させる構成であることを特徴とする請求項１乃至４のいずれか一項に記載のパイプ加工装置。 5. The pipe machining apparatus according to claim 1, wherein the pressing unit is configured to move the driven-side support shaft with respect to the drive-side rotation shaft. 6. 前記駆動成形部及び従動成形部によって挟持される曲げ形状のパイプの回転軌道から、当該パイプと干渉する障害物を排除したことを特徴とする請求項１乃至５のいずれか一項に記載のパイプ加工装置。
The pipe according to any one of claims 1 to 5, wherein an obstacle that interferes with the pipe is excluded from a rotation trajectory of the bent pipe sandwiched between the drive molding section and the driven molding section. Processing equipment.
JP2005208858A 2005-07-19 2005-07-19 Apparatus for working pipe Pending JP2007021547A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586320A (en) * 2013-11-01 2014-02-19 海宁金能热水器有限公司 Circumferential grooving machine of solar water heater barrel
CN108213138A (en) * 2018-02-02 2018-06-29 芜湖市皖南造船有限公司 A kind of grooving machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01114115A (en) * 1987-10-27 1989-05-02 Yaskawa Electric Mfg Co Ltd Drive circuit for voltage drive type power element
JP2003527970A (en) * 2000-03-20 2003-09-24 ラインハルト マシーネンバウ ゲゼルシャフト ミット ベシュレンクテル ハフツング Sheet metal forming machine
JP2004230422A (en) * 2003-01-30 2004-08-19 Kawaguchi Kogyo Kk Apparatus for forming groove

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01114115A (en) * 1987-10-27 1989-05-02 Yaskawa Electric Mfg Co Ltd Drive circuit for voltage drive type power element
JP2003527970A (en) * 2000-03-20 2003-09-24 ラインハルト マシーネンバウ ゲゼルシャフト ミット ベシュレンクテル ハフツング Sheet metal forming machine
JP2004230422A (en) * 2003-01-30 2004-08-19 Kawaguchi Kogyo Kk Apparatus for forming groove

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586320A (en) * 2013-11-01 2014-02-19 海宁金能热水器有限公司 Circumferential grooving machine of solar water heater barrel
CN108213138A (en) * 2018-02-02 2018-06-29 芜湖市皖南造船有限公司 A kind of grooving machine

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