WO2016203847A1 - Pipe bending device - Google Patents

Pipe bending device Download PDF

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Publication number
WO2016203847A1
WO2016203847A1 PCT/JP2016/062949 JP2016062949W WO2016203847A1 WO 2016203847 A1 WO2016203847 A1 WO 2016203847A1 JP 2016062949 W JP2016062949 W JP 2016062949W WO 2016203847 A1 WO2016203847 A1 WO 2016203847A1
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WIPO (PCT)
Prior art keywords
clamp
pipe
slide member
machine frame
bending
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PCT/JP2016/062949
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French (fr)
Japanese (ja)
Inventor
光平 蘭
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三桜工業株式会社
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Publication of WO2016203847A1 publication Critical patent/WO2016203847A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/02Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • B21D7/025Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member and pulling or pushing the ends of the work

Definitions

  • the present invention relates to a pipe bending apparatus.
  • a bending die and a clamp having a groove with a radius corresponding to the diameter of the pipe are provided on the peripheral surface, and the pipe is sandwiched between the bending die and the groove of the clamp, with the axis of the bending die as the center.
  • the present invention has been made in view of the above circumstances, and an object thereof is to propose a pipe bending apparatus that has a simple structure and can cope with various bending processes.
  • a pipe bending apparatus that includes a bending die and a clamp, holds the pipe between them and rotates them around a rotating shaft core of the bending die, and has a bending die at the tip.
  • Clamping machine comprising a machine frame that rotatably supports the main shaft and includes a main shaft driving motor, and a clamp driving mechanism that is rotatably supported by the main shaft and moves the clamp in a detachable manner with respect to the bending mold.
  • the clamp drive mechanism includes a slide member that has one end slidably fitted to the main shaft and moves up and down relative to the clamp machine frame, and the clamp is attached to the clamp machine frame and the slide member.
  • the slide member is provided with a key groove to be inserted into and removed from the key, the slide member is moved up by driving the clamp drive motor, and the key groove of the slide member is fitted to the key of the main shaft,
  • An apparatus for bending a pipe wherein the clamp machine frame and the main shaft are integrated, and the clamp is brought close to the bending mold to sandwich the pipe.
  • the slide member is actuated by the clamp driving motor, whereby the clamp machine frame can be integrated with or separated from the main shaft, and the clamp is bent.
  • the pipe can be held close to each other, that is, the clamp machine frame can be integrated or separated from the main shaft and the pipe can be held only by driving the clamp drive motor.
  • the structure is simple.
  • the clamp machine frame and the main shaft can be separated, that is, move independently of each other, so the arrangement of the clamp and bending mold relative to the pipe can be changed freely, such as right bending, left bending, etc.
  • the apparatus can cope with various pipe bending processes.
  • a pipe bending apparatus (hereinafter referred to as a processing apparatus) 1 includes a bending mold drive mechanism 10, a clamp drive mechanism 20, and a tension drive mechanism 30 in an apparatus machine frame 2 that extends in the horizontal direction. Yes.
  • the bending type drive mechanism 10 includes a main shaft 11 inserted and supported by a bearing 2 a provided in the apparatus machine frame 2, and a main shaft drive motor 12 that rotates the main shaft 11.
  • the main shaft drive motor 12 is installed on the lower surface of the apparatus frame 2, and the main shaft 11 is driven forward and backward by the motor 12.
  • Two keys 13 are implanted on the upper peripheral surface of the main shaft 11 with an interval of 180 degrees.
  • a bending die 14 is disposed at the upper end of the main shaft 11. As apparent from FIG.
  • the bending die 14 has a horseshoe shape in the horizontal cross section, and a large-diameter circumferential groove 14a and a small-diameter circumferential groove 14b having a substantially radius corresponding to the thickness of the pipe P are formed in two stages. Has been.
  • the clamp drive mechanism 20 is incorporated in the clamp machine frame 3.
  • the clamp machine frame 3 includes bearings 3a and 3b on the upper and lower side ends, and the main shaft 11 is fitted to the bearings 3a and 3b, so that the clamp machine frame 3 is rotatably supported by the main shaft 11.
  • the clamp drive mechanism 20 includes a slide member 21.
  • the slide member 21 includes a slide part 21a extending downward and a bearing part 21b extending in the horizontal direction.
  • the slide part 21a is slidably held at the lower part of the clamp machine frame 3, and has a rack 22 on its plate surface.
  • a bearing 23 is formed on the bearing portion 21b, and four key grooves 24 are formed on the periphery of the bearing 23 at intervals of 90 degrees.
  • the key groove 24 is inserted into and removed from the key 13 of the main shaft 11.
  • the slide member 21 has a pin 21c extending downward.
  • the pin 21c is inserted into and removed from the hole 2b formed in the peripheral edge of the bearing 2a of the apparatus machine frame 2.
  • Two holes 2b are formed on the periphery of the bearing 2a at intervals of 180 degrees.
  • a clamp 25 is disposed above the slide member 21, and the clamp 25 is supported by the clamp machine frame 3 via link rods 26a and 26b. These link rods 26a and 26b constitute so-called parallel links.
  • the link rod 26 a is connected to the slide member 21 by the link rod 26 c and is operated in accordance with the operation of the slide member 21.
  • a large-diameter groove 25a and a small-diameter groove 25b having a substantially radius corresponding to the thickness of the pipe P are formed in two stages.
  • the clamp drive motor 27 is installed in the lower part of the clamp machine frame 3.
  • An output shaft 27a of the clamp drive motor 27 extends toward the main shaft 11, and a pinion 28 is disposed at the tip thereof.
  • the pinion 28 meshes with the rack 22 of the slide member 21 described above.
  • the unclamped state that is, the state shown in FIG. 3, when the clamp drive motor 27 is driven to rotate forward, the pinion 28 is rotated, and thereby the slide member 21 is moved upward via the rack 22.
  • the link mechanism 26 is actuated via the link rod 26c, and the clamp 25 approaches the bending die 14 while being raised as shown in FIG.
  • the grooves 25a and 25b face the grooves 14a and 14b of the bending die 14, and the pipe P is sandwiched between them.
  • the key groove 24 of the slide member 21 is engaged with the key 13 of the main shaft 11, and the slide member 21 (clamp machine frame 3) and the main shaft 11 are integrated in the rotation direction. Therefore, in this state, the clamp machine frame 3 revolves around the main shaft 11 as the main shaft 11 rotates.
  • the clamp 25 is lowered while being separated from the bending die 14 by an operation opposite to the above operation. Then, the key groove 24 of the slide member 21 is detached from the key 13 of the main shaft 11, and the slide member 21 (clamp machine frame 3) and the main shaft 11 are separated in the rotation direction. As shown in FIG. 3, the pin 21 c of the slide member 21 is inserted into the hole 2 b of the device machine frame 2. Therefore, in this state, the clamp machine frame 3 is integrated with the apparatus machine frame 2.
  • the tension drive mechanism 30 includes a tension roll drive motor 31 as shown in FIG.
  • the tension roll drive motor 31 is installed in the lower part of the apparatus frame 2.
  • the output shaft 31a of the motor 31 is extended upward from the device frame 2, and a gear 32 is fixed to the tip thereof.
  • the tension driving mechanism 30 includes a tension roll machine frame 33.
  • the tension roll machine frame 33 is U-shaped and has bearings 33a and 33b at the upper and lower ends.
  • a gear 34 is provided concentrically with the bearing 33b on the lower surface of the lower bearing 33b, and a tension roll 35 is disposed on the upper end.
  • the bearings 33 a and 33 b of the tension roll machine frame 33 are fitted to the main shaft 11, and the gear 34 is meshed with the gear 32 of the tension roll drive motor 31. Therefore, when the tension roll drive motor 31 is driven, the tension roll machine frame 33 is rotated around the main shaft 11 via the gear 32 and the gear 34, whereby the tension roll 35 is revolved with respect to the bending die 14. To do.
  • the pipe P is processed as follows, for example.
  • the clamp machine frame 3 holding the clamp 25 is positioned to the left of the pipe P as shown in FIG.
  • the bending die 14 is set so that the curved portion is located forward (downward in the figure) and to the right of the pipe P.
  • the tension roll 35 is positioned in front of the clamp 25 and the bending die 14 (downward in the drawing) and in a portion where the pipe P is pressed from the left direction.
  • the clamp drive motor 27 is driven to rotate forward.
  • the clamp 25 is moved toward the bending die 14, thereby holding the pipe P between the bending die 14 and the clamp 25 (state of FIG. 4A).
  • the key groove 24 of the clamp machine frame 3 is fitted to the key 13 of the main shaft 11 so that the clamp machine frame 3 and the main shaft 11 are integrated.
  • the pipe P is fed by a predetermined amount S, and this time bent to the left by ⁇ degrees.
  • the clamp drive motor 27 is slightly driven in the direction opposite to the above, and the clamp 25 is moved away from the bending die 14 to release the pipe P.
  • the key groove 24 of the clamp machine frame 3 is still fitted to the key 13 of the main shaft 11, and the clamp machine frame 3 and the main shaft 11 are integrated in the rotation direction.
  • the pipe P is fed by a predetermined amount S
  • the spindle drive motor 12 is driven rightward, and the clamp machine frame 3 holding the clamp 25 is now positioned rightward of the pipe P.
  • the tension roll drive motor 31 is driven, and the tension roll 35 is positioned in front of the clamp 25 and the bending die 14 (downward in the drawing), and this time the pipe P is pressed from the right direction.
  • the clamp drive motor 27 is further driven in reverse to move the clamp 25 further away from the bending die 14, and the key groove 24 of the clamp machine frame 3 is removed from the key 13 of the main shaft 11, and the pin 21 c is formed in the apparatus machine frame 2.
  • the clamp machine frame 3 is fixed to the apparatus machine frame 2 by being inserted into the formed holes 2b.
  • the main shaft drive motor 12 is driven, and only the main shaft 11 is rotated.
  • the bending die 14 is positioned forward (downward in the drawing), and Set so that it is positioned to the left of pipe P.
  • the clamp drive motor 27 is driven forward. Then, as shown in FIG.
  • the clamp 25 is moved toward the bending die 14, thereby holding the pipe P between the bending die 14 and the clamp 25 (state of FIG. 5A).
  • the key groove 24 of the clamp machine frame 3 is fitted to the key 13 of the main shaft 11 so that the clamp machine frame 3 and the main shaft 11 are integrated.
  • the clamp machine frame 3 holding the clamp 25 is positioned in the left direction of the pipe P as shown in FIG.
  • the bending die 14 is set so that the curved portion is located rearward (upward in the drawing) and to the right of the pipe P.
  • the tension roll 35 is positioned behind the clamp 25 and the bending die 14 (upward in the drawing) and at a portion that holds the pipe P from the left.
  • the pipe P is sandwiched between the bending die 14 and the clamp 25 (state shown in FIG. 6A), and the tension roll drive motor 31 is rotated.
  • the tension roll 35 is revolved around the rotation axis of the bending die 14, and a part of the pipe P is bent and deformed.
  • the clamping machine frame 3 and the bending die 14 are arranged in directions opposite to those in the case of FIG.
  • the tension roll 35 is positioned behind the clamp 25 and the bending die 14 (upward in the drawing) and at a portion where the pipe P is pressed from the right. Then, the tension roll drive motor 31 is rotated to the other side. Then, the tension roll 35 is revolved leftward about the rotation axis of the bending die 14, and a part of the pipe P is bent and deformed to the left.
  • the above-described bending method of the pipe P is only an example of a bending method using the processing device 1 according to the present invention.
  • the bending bending process is performed.
  • Other processing such as processing can also be performed.
  • the arrangement of the clamp 25, the bending die 14 and the tension roll 35 with respect to the pipe P must be changed as described above.
  • Control means capable of controlling the start, stop, forward rotation, reverse rotation, etc. of the drive motor 27, the spindle drive motor 12, and further the tension roll drive motor 31 is provided, and can be realized by program control by the control means. Since design of program control belongs to the category of routine design activities of engineers in this industry, its description is omitted.
  • the pipe bending apparatus according to the present invention has a simple structure and can cope with various bending processes, it can be widely used as a pipe bending apparatus used in automobiles, home appliances, and the like. It is.

Abstract

[Problem] To provide a pipe bending device which has a simple structure and is suitable for various types of bending. [Solution] A pipe bending device is provided with: a device machine frame 2 for rotatably supporting a main shaft 11 having a bending die 14 at the distal end thereof, the device machine frame 2 being provided with a main shaft driving motor 12; and a clamp machine frame 3 rotatably supported by the main shaft and being provided with a clamp driving mechanism 26 for moving a clamp 25. The clamp driving mechanism is provided with: a slide member 21 for moving up and down, one end of the slide member 21 being slidably fitted with the main shaft; a link mechanism 26 for connecting and supporting the clamp on the clamp machine frame and the slide member; and a clamp driving motor 27 for moving the slide member up and down. A key 13 is furthermore formed in the main shaft, a key groove 24 is provided in the slide member, the slide member is moved up by driving of the clamp driving motor, the key groove of the slide member is fitted with the key of the main shaft, and the clamp is caused to hold a pipe therein so as to approach the bending die. 

Description

パイプの曲げ加工装置Pipe bending machine
 本発明は、パイプの曲げ加工装置に関するものである。 The present invention relates to a pipe bending apparatus.
 パイプの曲げ加工装置として、周面にパイプの径に対応した半径の溝を有する曲げ型およびクランプを備え、それらの曲げ型およびクランプの溝でパイプを挟持させ、曲げ型の軸心を中心にしてクランプを公転させることによって、パイプを曲げるようにしたものがある。 As a pipe bending device, a bending die and a clamp having a groove with a radius corresponding to the diameter of the pipe are provided on the peripheral surface, and the pipe is sandwiched between the bending die and the groove of the clamp, with the axis of the bending die as the center. Some pipes are bent by revolving the clamp.
 このようなパイプの曲げ加工装置では、パイプを左右両方向等に湾曲形成するためには、当然、パイプを左右両方向に曲げるための構造を備える必要があるが、その構造は、特許文献1,2等に開示されているように、複雑なものであった。 In such a pipe bending apparatus, in order to bend the pipe in both the left and right directions, naturally, it is necessary to have a structure for bending the pipe in both the left and right directions. As disclosed in the above, it was complicated.
特開2012-30266号公報JP 2012-30266 A 特開2014-94393号公報JP 2014-94393 A
 本発明は、上記のような実情に鑑みて成されたものであり、構造が単純であり、しかも、種々の曲げ加工に対応できるパイプの曲げ加工装置を提案することを目的とする。 The present invention has been made in view of the above circumstances, and an object thereof is to propose a pipe bending apparatus that has a simple structure and can cope with various bending processes.
 上記した目的を達成するため、本発明は、次の(1)~(3)に記載したパイプの曲げ加工装置とした。
 (1)曲げ型およびクランプを備え、それらでパイプを挟持し、それらを曲げ型の回転軸芯を中心に回転させることによってパイプを曲げるパイプの曲げ加工装置であって、先端に曲げ型を有する主軸を回転自在に支持し、主軸駆動モータを備えた装置機枠と、前記主軸に回転自在に支持され、クランプを前記曲げ型に対して離接可能に移動させるクランプ駆動機構を備えたクランプ機枠とを備え、前記クランプ駆動機構は、一端を前記主軸に摺動自在に嵌合させ、前記クランプ機枠に対して上下動するスライド部材と、前記クランプを前記クランプ機枠および前記スライド部材に連結支持させるリンク機構と、前記クランプ機枠に設置され、前記スライド部材を上下動させるクランプ駆動モータとを備え、さらに、前記主軸にキーを形成するとともに、前記スライド部材に、前記キーに挿脱するキー溝を設け、前記クランプ駆動モータの駆動によって前記スライド部材を上動させ、当該スライド部材のキー溝を前記主軸のキーに嵌合させて、前記クランプ機枠と前記主軸とを一体化するとともに、前記クランプを前記曲げ型に近接させてパイプを挟持させることを特徴とする、パイプの曲げ加工装置。
 (2)前記クランプと前記スライド部材とを連結するリンク竿が、平行リンクを構成していることを特徴とする、上記(1)に記載のパイプの曲げ加工装置。
 (3)前記スライド部材に、下方に向けて延設されたピンを備えるとともに、前記装置機枠に孔を形成し、前記スライド部材が下降し、前記キー溝が前記主軸のキーから離脱したときに、前記ピンが前記装置機枠の孔に挿通するようにしたことを特徴とする、上記(1)または(2)に記載のパイプの曲げ加工装置。
In order to achieve the above object, the present invention is a pipe bending apparatus described in the following (1) to (3).
(1) A pipe bending apparatus that includes a bending die and a clamp, holds the pipe between them and rotates them around a rotating shaft core of the bending die, and has a bending die at the tip. Clamping machine comprising a machine frame that rotatably supports the main shaft and includes a main shaft driving motor, and a clamp driving mechanism that is rotatably supported by the main shaft and moves the clamp in a detachable manner with respect to the bending mold. The clamp drive mechanism includes a slide member that has one end slidably fitted to the main shaft and moves up and down relative to the clamp machine frame, and the clamp is attached to the clamp machine frame and the slide member. A link mechanism for connecting and supporting; a clamp drive motor installed on the clamp machine frame for moving the slide member up and down; and forming a key on the main shaft In addition, the slide member is provided with a key groove to be inserted into and removed from the key, the slide member is moved up by driving the clamp drive motor, and the key groove of the slide member is fitted to the key of the main shaft, An apparatus for bending a pipe, wherein the clamp machine frame and the main shaft are integrated, and the clamp is brought close to the bending mold to sandwich the pipe.
(2) The pipe bending apparatus according to (1) above, wherein the link rod connecting the clamp and the slide member constitutes a parallel link.
(3) When the slide member is provided with a pin extending downward, a hole is formed in the device frame, the slide member is lowered, and the keyway is detached from the key of the main shaft Further, the pipe bending apparatus according to (1) or (2) above, wherein the pin is inserted into a hole of the machine frame.
 上記した本発明に係るパイプの曲げ加工装置によれば、クランプ駆動モータによってスライド部材を作動させ、それによってクランプ機枠を主軸と一体化或いは別体化することができるとともに、クランプを曲げ型に近接させてパイプを挟持することができる、即ち、クランプ機枠を主軸に一体化或いは別体化することと、パイプを挟持させることをクランプ駆動モータの駆動だけで行うことができるので、装置の構造が単純なものとなる。また、クランプ機枠と主軸とを別体化、即ちそれぞれ独立して動くものとすることができるので、パイプに対するクランプと曲げ型の配置を自由に変えることができ、右曲げ、左曲げ等の種々のパイプの曲げ加工に対応できる装置となる。 According to the above-described pipe bending apparatus according to the present invention, the slide member is actuated by the clamp driving motor, whereby the clamp machine frame can be integrated with or separated from the main shaft, and the clamp is bent. The pipe can be held close to each other, that is, the clamp machine frame can be integrated or separated from the main shaft and the pipe can be held only by driving the clamp drive motor. The structure is simple. In addition, the clamp machine frame and the main shaft can be separated, that is, move independently of each other, so the arrangement of the clamp and bending mold relative to the pipe can be changed freely, such as right bending, left bending, etc. The apparatus can cope with various pipe bending processes.
本発明に係るパイプの曲げ加工装置の一実施形態を示した斜視図である。It is the perspective view which showed one Embodiment of the bending apparatus of the pipe which concerns on this invention. 図1に示した実施形態のパイプの曲げ加工装置のクランプ駆動機構を示した概念図である。It is the conceptual diagram which showed the clamp drive mechanism of the bending apparatus of the embodiment shown in FIG. 図2に示したクランプ駆動機構の非クランプ状態を示した概念図である。It is the conceptual diagram which showed the unclamped state of the clamp drive mechanism shown in FIG. 図1に示した実施形態のパイプの曲げ加工装置によるパイプの曲げ加工態様を示した説明図で、(a)はパイプのセット状態を示し、(b)はパイプの加工状態を示している。It is explanatory drawing which showed the bending process mode of the pipe by the pipe bending apparatus of embodiment shown in FIG. 1, (a) has shown the set state of the pipe, (b) has shown the processing state of the pipe. 図1に示した実施形態のパイプの曲げ加工装置によるパイプの曲げ加工の他の態様を示した説明図で、(a)はパイプのセット状態を示し、(b)はパイプの加工状態を示している。It is explanatory drawing which showed the other aspect of the bending of the pipe by the pipe bending apparatus of embodiment shown in FIG. 1, (a) shows the set state of a pipe, (b) shows the processing state of a pipe ing. 図1に示した実施形態のパイプの曲げ加工装置によるパイプの曲げ加工のさらに他の態様を示した説明図で、(a)はパイプのセット状態を示し、(b)はパイプの加工状態を示している。It is explanatory drawing which showed the further another aspect of the bending process of the pipe by the pipe bending apparatus of embodiment shown in FIG. 1, (a) shows the set state of a pipe, (b) shows the processing state of a pipe. Show.
 以下、本発明に係るパイプの曲げ加工装置の一実施形態を、図面を参照しながら詳細に説明する。 Hereinafter, an embodiment of a pipe bending apparatus according to the present invention will be described in detail with reference to the drawings.
 図1に示すように、パイプの曲げ加工装置(以下、加工装置という)1は、水平方向に張出す装置機枠2に曲げ型駆動機構10,クランプ駆動機構20,テンション駆動機構30を備えている。 As shown in FIG. 1, a pipe bending apparatus (hereinafter referred to as a processing apparatus) 1 includes a bending mold drive mechanism 10, a clamp drive mechanism 20, and a tension drive mechanism 30 in an apparatus machine frame 2 that extends in the horizontal direction. Yes.
 曲げ型駆動機構10は、装置機枠2に設けられた軸受け2aに挿通支持された主軸11と、当該主軸11を回転させる主軸駆動モータ12を備えている。主軸駆動モータ12は、装置機枠2の下面に設置され、このモータ12によって主軸11が正逆転駆動される。主軸11の上部周面には、180度の間隔をもって2つのキー13が植設されている。また、主軸11の上端には、曲げ型14が配設されている。この曲げ型14は、図1から明らかなように、水平断面が馬蹄形状を成し、パイプPの太さに対応する略半径の大径周溝14aおよび小径周溝14bが、2段に形成されている。 The bending type drive mechanism 10 includes a main shaft 11 inserted and supported by a bearing 2 a provided in the apparatus machine frame 2, and a main shaft drive motor 12 that rotates the main shaft 11. The main shaft drive motor 12 is installed on the lower surface of the apparatus frame 2, and the main shaft 11 is driven forward and backward by the motor 12. Two keys 13 are implanted on the upper peripheral surface of the main shaft 11 with an interval of 180 degrees. A bending die 14 is disposed at the upper end of the main shaft 11. As apparent from FIG. 1, the bending die 14 has a horseshoe shape in the horizontal cross section, and a large-diameter circumferential groove 14a and a small-diameter circumferential groove 14b having a substantially radius corresponding to the thickness of the pipe P are formed in two stages. Has been.
 クランプ駆動機構20は、クランプ機枠3内に組み込まれている。クランプ機枠3は、側端上下に軸受け3a,3bを備え、それらの軸受け3a,3bに上記した主軸11が嵌合されることによって、主軸11に回転自在に支持されている。図2に示すように、クランプ駆動機構20は、スライド部材21を備えている。このスライド部材21は、下方に延設されたスライド部21aと、水平方向に張出された軸受け部21bとを備えている。スライド部21aは、クランプ機枠3の下部に摺動自在に保持され、その板面にラック22を備えている。軸受け部21bには、軸受け23が形成され、その軸受け23の周縁には、90度の間隔で4つのキー溝24が形成されている。このキー溝24は、主軸11の上記したキー13に対して挿脱されるものである。 The clamp drive mechanism 20 is incorporated in the clamp machine frame 3. The clamp machine frame 3 includes bearings 3a and 3b on the upper and lower side ends, and the main shaft 11 is fitted to the bearings 3a and 3b, so that the clamp machine frame 3 is rotatably supported by the main shaft 11. As shown in FIG. 2, the clamp drive mechanism 20 includes a slide member 21. The slide member 21 includes a slide part 21a extending downward and a bearing part 21b extending in the horizontal direction. The slide part 21a is slidably held at the lower part of the clamp machine frame 3, and has a rack 22 on its plate surface. A bearing 23 is formed on the bearing portion 21b, and four key grooves 24 are formed on the periphery of the bearing 23 at intervals of 90 degrees. The key groove 24 is inserted into and removed from the key 13 of the main shaft 11.
また、スライド部材21には、下方に向けてピン21cが延設されている。このピン21cは、装置機枠2の軸受け2aの周縁に形成された孔2bに対して挿脱される。孔2bは、180度間隔で軸受け2aの周縁に2つ形成されている。 The slide member 21 has a pin 21c extending downward. The pin 21c is inserted into and removed from the hole 2b formed in the peripheral edge of the bearing 2a of the apparatus machine frame 2. Two holes 2b are formed on the periphery of the bearing 2a at intervals of 180 degrees.
 スライド部材21の上方には、クランプ25が配置され、このクランプ25は、リンク竿26a,26bを介してクランプ機枠3に支持されている。これらのリンク竿26a,26bは、所謂平行リンクを構成している。リンク竿26aは、リンク竿26cによってスライド部材21に連結され、スライド部材21の動作に伴って作動される。クランプ25の端部には、パイプPの太さに対応する略半径の大径溝25aおよび小径溝25bが、2段に形成されている。 A clamp 25 is disposed above the slide member 21, and the clamp 25 is supported by the clamp machine frame 3 via link rods 26a and 26b. These link rods 26a and 26b constitute so-called parallel links. The link rod 26 a is connected to the slide member 21 by the link rod 26 c and is operated in accordance with the operation of the slide member 21. At the end of the clamp 25, a large-diameter groove 25a and a small-diameter groove 25b having a substantially radius corresponding to the thickness of the pipe P are formed in two stages.
 クランプ機枠3の下部には、クランプ駆動モータ27が設置されている。このクランプ駆動モータ27の出力軸27aは、主軸11へ向けて延設され、その先端には、ピニオン28が配設されている。そして、このピニオン28は、スライド部材21の上記したラック22に噛合している。 The clamp drive motor 27 is installed in the lower part of the clamp machine frame 3. An output shaft 27a of the clamp drive motor 27 extends toward the main shaft 11, and a pinion 28 is disposed at the tip thereof. The pinion 28 meshes with the rack 22 of the slide member 21 described above.
 非クランプ状態、即ち、図3に示した状態で、クランプ駆動モータ27が正転駆動されると、ピニオン28が回転され、それによってラック22を介してスライド部材21が上方に移動される。スライド部材21が上方に移動されると、リンク竿26cを介してリンク機構26が作動され、クランプ25が、図2に示したように、上昇しながら曲げ型14に向かって近接し、遂には、溝25a,25bが曲げ型14の溝14a,14bに対峙し、それらの間でパイプPを挟持する。この状態では、スライド部材21のキー溝24が主軸11のキー13に係合し、スライド部材21(クランプ機枠3)と主軸11とが回転方向で一体化する。したがって、この状態では、主軸11の回転に伴ってクランプ機枠3が主軸11を中心として公転する。 In the unclamped state, that is, the state shown in FIG. 3, when the clamp drive motor 27 is driven to rotate forward, the pinion 28 is rotated, and thereby the slide member 21 is moved upward via the rack 22. When the slide member 21 is moved upward, the link mechanism 26 is actuated via the link rod 26c, and the clamp 25 approaches the bending die 14 while being raised as shown in FIG. The grooves 25a and 25b face the grooves 14a and 14b of the bending die 14, and the pipe P is sandwiched between them. In this state, the key groove 24 of the slide member 21 is engaged with the key 13 of the main shaft 11, and the slide member 21 (clamp machine frame 3) and the main shaft 11 are integrated in the rotation direction. Therefore, in this state, the clamp machine frame 3 revolves around the main shaft 11 as the main shaft 11 rotates.
 パイプPの挟持状態で、クランプ駆動モータ27を逆転駆動させると、上記動作とは逆の作動によって、クランプ25が曲げ型14から離反しながら降下する。そして、スライド部材21のキー溝24が主軸11のキー13から離脱し、スライド部材21(クランプ機枠3)と主軸11とが回転方向で別体化する。そして、図3に示したように、スライド部材21のピン21cが装置機枠2の孔2bに挿嵌される。したがって、この状態では、クランプ機枠3が装置機枠2に一体化される。 When the clamp drive motor 27 is driven in the reverse direction while the pipe P is sandwiched, the clamp 25 is lowered while being separated from the bending die 14 by an operation opposite to the above operation. Then, the key groove 24 of the slide member 21 is detached from the key 13 of the main shaft 11, and the slide member 21 (clamp machine frame 3) and the main shaft 11 are separated in the rotation direction. As shown in FIG. 3, the pin 21 c of the slide member 21 is inserted into the hole 2 b of the device machine frame 2. Therefore, in this state, the clamp machine frame 3 is integrated with the apparatus machine frame 2.
 テンション駆動機構30は、図1に示すように、テンションロール駆動モータ31を備えている。このテンションロール駆動モータ31は、装置機枠2の下部に設置されている。そして、このモータ31の出力軸31aは、装置機枠2から上方へ延設され、その先端に歯車32が固設されている。 The tension drive mechanism 30 includes a tension roll drive motor 31 as shown in FIG. The tension roll drive motor 31 is installed in the lower part of the apparatus frame 2. The output shaft 31a of the motor 31 is extended upward from the device frame 2, and a gear 32 is fixed to the tip thereof.
 また、テンション駆動機構30は、テンションロール機枠33を備えている。テンションロール機枠33はコ字状を成し、上下側端に軸受け33a,33bを有している。下方の軸受け33bの下面には、軸受け33bと同芯に歯車34が添設され、上端にはテンションロール35が配設されている。そして、このテンションロール機枠33の軸受け33a,33bは、上記した主軸11に嵌合され、歯車34が、テンションロール駆動モータ31の歯車32に噛合されている。したがって、テンションロール駆動モータ31が駆動されると、歯車32,歯車34を介してテンションロール機枠33が主軸11を中心に回動され、それによってテンションロール35が、曲げ型14に対して公転する。 The tension driving mechanism 30 includes a tension roll machine frame 33. The tension roll machine frame 33 is U-shaped and has bearings 33a and 33b at the upper and lower ends. A gear 34 is provided concentrically with the bearing 33b on the lower surface of the lower bearing 33b, and a tension roll 35 is disposed on the upper end. The bearings 33 a and 33 b of the tension roll machine frame 33 are fitted to the main shaft 11, and the gear 34 is meshed with the gear 32 of the tension roll drive motor 31. Therefore, when the tension roll drive motor 31 is driven, the tension roll machine frame 33 is rotated around the main shaft 11 via the gear 32 and the gear 34, whereby the tension roll 35 is revolved with respect to the bending die 14. To do.
 上記のように構成された加工装置1を使用して、パイプPは、例えば、以下のように加工される。 Using the processing device 1 configured as described above, the pipe P is processed as follows, for example.
 パイプPを、先ず右にα度湾曲変形(右引き曲げ)させる場合には、図4(a)に示すように、クランプ25を保持するクランプ機枠3を、パイプPの左方向に位置させ、曲げ型14を、その湾曲部が前方(図において下方)に位置し、且つパイプPの右方向に位置するようにセットする。また、テンションロール35を、上記クランプ25および曲げ型14の前方(図において下方)であって、且つパイプPを左方向から押える部分に位置させる。上記の状態で、クランプ駆動モータ27を正転駆動させる。すると、図3に示すように、クランプ25が曲げ型14に向けて移動され、それによって、パイプPを曲げ型14とクランプ25とによって挟持する〔図4(a)の状態〕。この状態では、クランプ機枠3のキー溝24は、主軸11のキー13に嵌合し、クランプ機枠3と主軸11とが一体化している。 When the pipe P is first bent to the right by α-degree bending (rightward bending), the clamp machine frame 3 holding the clamp 25 is positioned to the left of the pipe P as shown in FIG. The bending die 14 is set so that the curved portion is located forward (downward in the figure) and to the right of the pipe P. Further, the tension roll 35 is positioned in front of the clamp 25 and the bending die 14 (downward in the drawing) and in a portion where the pipe P is pressed from the left direction. In the above state, the clamp drive motor 27 is driven to rotate forward. Then, as shown in FIG. 3, the clamp 25 is moved toward the bending die 14, thereby holding the pipe P between the bending die 14 and the clamp 25 (state of FIG. 4A). In this state, the key groove 24 of the clamp machine frame 3 is fitted to the key 13 of the main shaft 11 so that the clamp machine frame 3 and the main shaft 11 are integrated.
 次いで、主軸駆動モータ12を右方向に駆動させると、図4(b)に示したように、曲げ型14が右方向に回転され、それに伴ってクランプ25もパイプPを挟持した状態で、曲げ型14の回転軸芯を中心にして右方向に駆動される。したがって、パイプPは、曲げ型14の周溝14a(14b)に沿って変形され、右方向にα度曲げられる。 Next, when the spindle drive motor 12 is driven to the right, as shown in FIG. 4B, the bending die 14 is rotated to the right, and the clamp 25 also holds the pipe P while being bent. It is driven in the right direction around the rotational axis of the mold 14. Therefore, the pipe P is deformed along the circumferential groove 14a (14b) of the bending die 14, and is bent α degrees in the right direction.
 引き続いて、パイプPを所定量S送り、今度は左にβ度湾曲変形させる。この場合には、先ずクランプ駆動モータ27を、上記とは逆方向に若干駆動させ、クランプ25を曲げ型14から遠ざけ、パイプPの挟持を解除する。この状態では、未だクランプ機枠3のキー溝24は、主軸11のキー13に嵌合しており、クランプ機枠3と主軸11とが回転方向で一体化している。そして、図示しないチャック機構を用いて、パイプPを所定量S送るとともに、主軸駆動モータ12を右方向に駆動させ、クランプ25を保持するクランプ機枠3を、今度はパイプPの右方向に位置させる。また、テンションロール駆動モータ31を駆動し、テンションロール35を、クランプ25及び曲げ型14の前方(図において下方)であって、且つ今度はパイプPを右方向から押える部分に位置させる。 Subsequently, the pipe P is fed by a predetermined amount S, and this time bent to the left by β degrees. In this case, first, the clamp drive motor 27 is slightly driven in the direction opposite to the above, and the clamp 25 is moved away from the bending die 14 to release the pipe P. In this state, the key groove 24 of the clamp machine frame 3 is still fitted to the key 13 of the main shaft 11, and the clamp machine frame 3 and the main shaft 11 are integrated in the rotation direction. Then, using a chuck mechanism (not shown), the pipe P is fed by a predetermined amount S, the spindle drive motor 12 is driven rightward, and the clamp machine frame 3 holding the clamp 25 is now positioned rightward of the pipe P. Let Further, the tension roll drive motor 31 is driven, and the tension roll 35 is positioned in front of the clamp 25 and the bending die 14 (downward in the drawing), and this time the pipe P is pressed from the right direction.
 続いて、クランプ駆動モータ27を更に逆転駆動させ、クランプ25を曲げ型14から更に遠ざけるとともに、クランプ機枠3のキー溝24を主軸11のキー13から外し、ピン21cを装置機枠2に形成された孔2bに挿入させ、クランプ機枠3を装置機枠2に固定する。この状態で、主軸駆動モータ12を駆動させ、主軸11のみを回動し、図5(a)に示すように、曲げ型14を、その湾曲部が前方(図において下方)に位置し、且つパイプPの左方向に位置するようにセットする。この状態で、クランプ駆動モータ27を正転駆動させる。すると、図3に示すように、クランプ25が曲げ型14に向けて移動され、それによって、パイプPを曲げ型14とクランプ25とによって挟持する〔図5(a)の状態〕。この状態では、クランプ機枠3のキー溝24は、主軸11のキー13に嵌合し、クランプ機枠3と主軸11とが一体化している。 Subsequently, the clamp drive motor 27 is further driven in reverse to move the clamp 25 further away from the bending die 14, and the key groove 24 of the clamp machine frame 3 is removed from the key 13 of the main shaft 11, and the pin 21 c is formed in the apparatus machine frame 2. The clamp machine frame 3 is fixed to the apparatus machine frame 2 by being inserted into the formed holes 2b. In this state, the main shaft drive motor 12 is driven, and only the main shaft 11 is rotated. As shown in FIG. 5A, the bending die 14 is positioned forward (downward in the drawing), and Set so that it is positioned to the left of pipe P. In this state, the clamp drive motor 27 is driven forward. Then, as shown in FIG. 3, the clamp 25 is moved toward the bending die 14, thereby holding the pipe P between the bending die 14 and the clamp 25 (state of FIG. 5A). In this state, the key groove 24 of the clamp machine frame 3 is fitted to the key 13 of the main shaft 11 so that the clamp machine frame 3 and the main shaft 11 are integrated.
 次いで、主軸駆動モータ12を左方向に駆動させると、図5(b)に示したように、曲げ型14が左方向に回転され、それに伴ってクランプ25もパイプPを挟持した状態で、曲げ型14の回転軸芯を中心にして左方向に駆動される。したがって、パイプPは、曲げ型14の周溝14a(14b)に沿って変形され、左方向にβ度曲げられる。 Next, when the spindle driving motor 12 is driven to the left, as shown in FIG. 5 (b), the bending die 14 is rotated to the left, and the clamp 25 also holds the pipe P while being bent. The mold 14 is driven leftward about the rotation axis. Therefore, the pipe P is deformed along the circumferential groove 14a (14b) of the bending die 14, and is bent β degrees in the left direction.
 また、パイプPの一部を右に湾曲変形(右押し曲げ)させる場合は、図6(a)に示すように、クランプ25を保持するクランプ機枠3を、パイプPの左方向に位置させ、曲げ型14を、その湾曲部が後方(図において上方)に位置し、且つパイプPの右方向に位置するようにセットする。また、テンションロール35を、上記クランプ25および曲げ型14の後方(図において上方)であって、且つパイプPを左方向から押える部分に位置させる。そして、この状態で、パイプPを曲げ型14とクランプ25によって挟持し〔図6(a)の状態〕、テンションロール駆動モータ31を回転させる。すると、図6(b)に示すように、テンションロール35が曲げ型14の回転軸芯を中心に公転され、パイプPの一部が湾曲変形される。 When a part of the pipe P is bent and deformed to the right (right push bending), the clamp machine frame 3 holding the clamp 25 is positioned in the left direction of the pipe P as shown in FIG. The bending die 14 is set so that the curved portion is located rearward (upward in the drawing) and to the right of the pipe P. Further, the tension roll 35 is positioned behind the clamp 25 and the bending die 14 (upward in the drawing) and at a portion that holds the pipe P from the left. In this state, the pipe P is sandwiched between the bending die 14 and the clamp 25 (state shown in FIG. 6A), and the tension roll drive motor 31 is rotated. Then, as shown in FIG. 6B, the tension roll 35 is revolved around the rotation axis of the bending die 14, and a part of the pipe P is bent and deformed.
 なお、パイプPの一部を左に湾曲変形(左押し曲げ)させる場合には、図示しないが、クランプ機枠3と曲げ型14とを、図6の場合とパイプPに対して反対の方向に位置させ、テンションロール35を、上記クランプ25および曲げ型14の後方(図において上方)であって、且つパイプPを右方向から押える部分に位置させる。そして、テンションロール駆動モータ31を他方へ回転させる。すると、テンションロール35が曲げ型14の回転軸芯を中心に左方に公転され、パイプPの一部が左に湾曲変形される。 In the case where a part of the pipe P is bent and deformed to the left (left-handed bending), although not shown, the clamping machine frame 3 and the bending die 14 are arranged in directions opposite to those in the case of FIG. The tension roll 35 is positioned behind the clamp 25 and the bending die 14 (upward in the drawing) and at a portion where the pipe P is pressed from the right. Then, the tension roll drive motor 31 is rotated to the other side. Then, the tension roll 35 is revolved leftward about the rotation axis of the bending die 14, and a part of the pipe P is bent and deformed to the left.
 上記したパイプPの曲げ加工方法は、本発明に係る加工装置1を用いた曲げ加工形態の一部を例示したに過ぎず、例えば、送り機構を持ったチャック機構を併用することにより、押し出し曲げ加工等の他の加工も実施することができる。なお、上記した種々の曲げ加工を実施するためには、上記したようにパイプPに対するクランプ25、曲げ型14そしてテンションロール35の配置等を変更しなければならないが、その変更は、例えば、クランプ駆動モータ27、主軸駆動モータ12、更にはテンションロール駆動モータ31の始動、停止、正転、逆転等を制御できる制御手段を設け、該制御手段によるプログラム制御によって実現することができ、このようなプログラム制御を設計することは、この業界の技術者の日常的設計行為の範疇に属するため、その説明は省略する。 The above-described bending method of the pipe P is only an example of a bending method using the processing device 1 according to the present invention. For example, by using a chuck mechanism having a feeding mechanism in combination, the bending bending process is performed. Other processing such as processing can also be performed. In order to perform the above-described various bending processes, the arrangement of the clamp 25, the bending die 14 and the tension roll 35 with respect to the pipe P must be changed as described above. Control means capable of controlling the start, stop, forward rotation, reverse rotation, etc. of the drive motor 27, the spindle drive motor 12, and further the tension roll drive motor 31 is provided, and can be realized by program control by the control means. Since design of program control belongs to the category of routine design activities of engineers in this industry, its description is omitted.
 以上、本発明に係るパイプの曲げ加工装置の実施形態を説明したが、本発明は、何ら既述の実施形態に限定されるものではなく、特許請求の範囲に記載した本発明の技術的思想の範囲内において、種々の変形および変更が可能であることは当然である。 The embodiment of the pipe bending apparatus according to the present invention has been described above, but the present invention is not limited to the embodiment described above, and the technical idea of the present invention described in the claims. It goes without saying that various modifications and changes can be made within the scope of the above.
 本発明に係るパイプの曲げ加工装置は、構造が単純であり、しかも、種々の曲げ加工に対応できるものであるので、自動車、家電等に用いられるパイプの曲げ加工装置として、広く利用可能なものである。 Since the pipe bending apparatus according to the present invention has a simple structure and can cope with various bending processes, it can be widely used as a pipe bending apparatus used in automobiles, home appliances, and the like. It is.
  1  パイプの曲げ加工装置
  2  装置機枠
  2a  軸受け
  2b  孔
  3  クランプ機枠
  3a,3b  軸受け
  10  曲げ型駆動機構
  11  主軸
  12  主軸駆動モータ
  13  キー
  14  曲げ型
  14a  大径周溝
  14b  小径周溝
  20  クランプ駆動機構
  21  スライド部材
  21a  スライド部
  21b  軸受け部
  21c  ピン
  22  ラック
  23  軸受け
  24  キー溝
  25  クランプ
  26  リンク機構
  26a,26b,26c  リンク竿
  27  クランプ駆動モータ
  27a  駆動軸
  28  ピニオン
  30  テンション駆動機構
  31  テンションロール駆動モータ
  31a  出力軸
  32  歯車
  33a,33b  軸受け
  34  歯車
  35  テンションロール
  P  パイプ
DESCRIPTION OF SYMBOLS 1 Pipe bending apparatus 2 Apparatus machine frame 2a Bearing 2b Hole 3 Clamp machine frame 3a, 3b Bearing 10 Bending type drive mechanism 11 Main axis 12 Main axis drive motor 13 Key 14 Bending type 14a Large diameter circumferential groove 14b Small diameter circumferential groove 20 Clamp driving Mechanism 21 Slide member 21a Slide portion 21b Bearing portion 21c Pin 22 Rack 23 Bearing 24 Key groove 25 Clamp 26 Link mechanism 26a, 26b, 26c Link rod 27 Clamp drive motor 27a Drive shaft 28 Pinion 30 Tension drive mechanism 31 Tension roll drive motor 31a Output shaft 32 Gear 33a, 33b Bearing 34 Gear 35 Tension roll P Pipe

Claims (3)

  1.  曲げ型およびクランプを備え、それらでパイプを挟持し、それらを曲げ型の回転軸芯を中心に回転させることによってパイプを曲げるパイプの曲げ加工装置であって、
     先端に曲げ型を有する主軸を回転自在に支持し、主軸駆動モータを備えた装置機枠と、前記主軸に回転自在に支持され、クランプを前記曲げ型に対して離接可能に移動させるクランプ駆動機構を備えたクランプ機枠とを備え、
     前記クランプ駆動機構は、一端を前記主軸に摺動自在に嵌合させ、前記クランプ機枠に対して上下動するスライド部材と、前記クランプを前記クランプ機枠および前記スライド部材に連結支持させるリンク機構と、前記クランプ機枠に設置され、前記スライド部材を上下動させるクランプ駆動モータとを備え、
     さらに、前記主軸にキーを形成するとともに、前記スライド部材に、前記キーに挿脱するキー溝を設け、
     前記クランプ駆動モータの駆動によって前記スライド部材を上動させ、当該スライド部材のキー溝を前記主軸のキーに嵌合させて、前記クランプ機枠と前記主軸とを一体化するとともに、前記クランプを前記曲げ型に近接させてパイプを挟持させる、
     ことを特徴とするパイプの曲げ加工装置。
    A pipe bending apparatus comprising a bending die and a clamp, sandwiching the pipe with them, and bending the pipe by rotating them around the rotation axis of the bending die,
    An apparatus machine frame having a main spindle having a bending mold at the tip and rotatably supporting the main spindle, and a clamp drive that is rotatably supported by the main spindle and moves the clamp to and from the bending mold. A clamping machine frame with a mechanism,
    The clamp drive mechanism is slidably fitted at one end to the main shaft, and a slide member that moves up and down relative to the clamp machine frame, and a link mechanism that connects and supports the clamp to the clamp machine frame and the slide member. And a clamp drive motor that is installed on the clamp machine frame and moves the slide member up and down,
    Furthermore, a key is formed on the main shaft, and a key groove is provided on the slide member to be inserted into and removed from the key.
    The clamp drive motor is driven to move the slide member upward, the key groove of the slide member is fitted to the key of the main shaft, the clamp machine frame and the main shaft are integrated, and the clamp is Hold the pipe close to the bending mold,
    A pipe bending apparatus characterized by that.
  2.  前記クランプと前記スライド部材とを連結するリンク竿が、平行リンクを構成している、ことを特徴とする請求項1に記載のパイプの曲げ加工装置。 The pipe bending apparatus according to claim 1, wherein the link rod connecting the clamp and the slide member constitutes a parallel link.
  3.  前記スライド部材に、下方に向けて延設されたピンを備えるとともに、前記装置機枠に孔を形成し、前記スライド部材が下降し、前記キー溝が前記主軸のキーから離脱したときに、前記ピンが前記装置機枠の孔に挿通するようにした、ことを特徴とする請求項1または2に記載のパイプの曲げ加工装置。 The slide member is provided with a pin extending downward, a hole is formed in the machine frame, the slide member is lowered, and the keyway is detached from the key of the main shaft, The pipe bending apparatus according to claim 1 or 2, wherein a pin is inserted into a hole of the machine frame.
PCT/JP2016/062949 2015-06-18 2016-04-25 Pipe bending device WO2016203847A1 (en)

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CN108772451A (en) * 2018-07-03 2018-11-09 张家港市友胜机械制造有限公司 Upper and lower curved New Type Bending Pipe Unit
CN109482685A (en) * 2018-12-11 2019-03-19 广东捷泰克智能装备有限公司 It include the bending machine for improving spindle positioning structure
CN112453133A (en) * 2020-09-17 2021-03-09 上海发那科机器人有限公司 Rotary clamping device

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JP6485465B2 (en) 2017-01-18 2019-03-20 アンデン株式会社 Contact device and electromagnetic relay
CN108356112A (en) * 2018-02-09 2018-08-03 佛山市佳锐智能装备有限公司 A kind of bending machine
CN108889833B (en) * 2018-07-11 2019-10-11 安徽黄山中友链条制造有限公司 A kind of drive chain drive block manufacture processing unit (plant)
CN112893549B (en) * 2021-01-25 2021-12-10 浙江大学 Bending forming device for pipe fitting capable of bending and changing pipe diameter and bending diameter

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CN108772451A (en) * 2018-07-03 2018-11-09 张家港市友胜机械制造有限公司 Upper and lower curved New Type Bending Pipe Unit
CN109482685A (en) * 2018-12-11 2019-03-19 广东捷泰克智能装备有限公司 It include the bending machine for improving spindle positioning structure
CN112453133A (en) * 2020-09-17 2021-03-09 上海发那科机器人有限公司 Rotary clamping device
CN112453133B (en) * 2020-09-17 2022-08-19 上海发那科机器人有限公司 Rotary clamping device

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