WO2006043316A1 - 樹脂チューブの高速曲げ方法とこの方法に用いる三次元曲げ型 - Google Patents
樹脂チューブの高速曲げ方法とこの方法に用いる三次元曲げ型 Download PDFInfo
- Publication number
- WO2006043316A1 WO2006043316A1 PCT/JP2004/015492 JP2004015492W WO2006043316A1 WO 2006043316 A1 WO2006043316 A1 WO 2006043316A1 JP 2004015492 W JP2004015492 W JP 2004015492W WO 2006043316 A1 WO2006043316 A1 WO 2006043316A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- bending
- angle
- raceway groove
- bent
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/08—Bending or folding of tubes or other profiled members
- B29C53/083—Bending or folding of tubes or other profiled members bending longitudinally, i.e. modifying the curvature of the tube axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/08—Bending or folding of tubes or other profiled members
Definitions
- the present invention relates to a tube bending method capable of bending a synthetic resin tube at high speed three-dimensionally, and a tube three-dimensional bending die used in this method.
- the bending mechanism B is provided at only one place, the straight portion of the tube T is gripped by the chuck Ch, and the tube T is twisted by the chuck Ch to be fed and bent.
- One-dimensional 3D bending is also widespread.
- this bending method is a mechanism that repeats the combined work of feeding (propulsion) and rotation (twisting) of the tube T by the chuck Ch. Therefore, the work becomes intermittent and requires time for the bending work.
- the track is swirling and approaching, there are theoretical limits such as not being able to use it when, for example, two bending parts are approaching and the force is not in the same plane.
- the present invention is capable of bending a tube three-dimensionally only by moving a bending carriage head that applies force in the vertical and horizontal directions following the bending trajectory. It is an object to provide a technique that can be molded.
- the configuration of the three-dimensional bending method of the present invention made for the purpose of solving the above-described problem is that a terminal on the near side of the tube (hereinafter referred to as a front terminal) in a three-dimensional bending-formed form is defined as X, Y , Place it at the origin of Cartesian coordinates by the Z-axis and set it as the cache reference point, and at multiple points including the bent part from the front end of the tube to the far end (hereinafter referred to as the rear end), The position on each axis of the coordinates, the angle with respect to two vertical planes on the coordinates at each position, and the angle with respect to the horizontal plane are obtained, and based on the obtained position data and angle data!
- the tube The bending end of the straight tube is formed as a three-dimensional bending track groove on the block-shaped mold member, and the front end of the straight tubular tube to be bent is the starting end of the bending track groove.
- Set to the front end of the tube and the rear end By moving while modeled after the horizontal rollers on the raceway groove toward, and is characterized in that to bend three-dimensionally the tube do pushing the raceway groove.
- a three-dimensional bending molded resin tube is rotated around the central axis of the tube at the origin on the orthogonal coordinates of the X, ,, and Z axes, and the XY
- the XZ plane, and the YZ plane by rotating in units of ⁇ XY degrees, ⁇ XZ degrees, and ⁇ YZ degrees (0> 1 °), respectively, this 360 degrees around the central axis of the resin tube
- the bending trajectory of the tube is expressed by position data and angle data in 3D space (on the Cartesian coordinates), and this defines the posture in which the tube is 3D bent.
- This resin tube obtained by rotating these two angles ⁇ and ⁇ 360 degrees around the central axis. Obtain all the bending trajectories of the probe and calculate the maximum value. The maximum value in each posture at 360 degrees around the central axis is defined as the reference value, and the tube posture that minimizes this value, that is, the rotation angle around the central axis of the tube is calculated. Determine the tube orientation (orientation).
- the position data on the orthogonal coordinates and the angle data with respect to the vertical plane and the horizontal plane at each position for a plurality of points including the bent portion of the tube It is formed by rotating at an appropriate angle pitch about 360 degrees around the central axis, and the posture of the rotation angle of the tube in the angle data that minimizes the sum of the angle data with respect to the vertical plane and the horizontal plane at each rotation position is used as the mold member.
- a 3D bending die for the tube is formed, and a 3D high-speed bending of the tube is performed using this bending die and a horizontal roller that applies a force to push the tube into the raceway groove of this bending die.
- a three-dimensional bending mold is processed by placing the end on the front side of the tube (hereinafter referred to as the front end) in the three-dimensional bending-molded form at the origin of the orthogonal coordinates of the X, Y, and Z axes. For a plurality of points including a bent portion from the front end of the tube to the other end (hereinafter referred to as the rear end) as a reference point, the position on each axis of the coordinates and 2 on the coordinates at each position.
- the rectangular coordinates are defined as the X axis in the direction in which the groove extends in block B, the Y axis in the direction perpendicular to the groove, the Z axis in the vertical direction, and the origin of the groove as the origin.
- block B made of materials according to the purpose, such as metal, resin, ceramic, etc.
- the trajectory in the 3D bending form of the tube to be 3D bent is engraved as a groove 1.
- the surface of the track that passes through the center line of the groove 1 and that is perpendicular to both the vertically lower side and the center line of the groove and that is at an equal distance from the center line force of the groove and has an appropriate width Create 2. (Hereafter, this surface is referred to as the upper surface 2 of the mold). Further, the block B other than the upper surface 2 of the mold is cut vertically downward, so that the vertical surface 3 that is equidistant in the horizontal direction with the tube bending trajectory (hereinafter this surface is referred to as the vertical surface 3 of the mold). Create The entire part with the groove 1, the upper surface 2 and the vertical surface 3 created in the material block B in this way is called a bending die G. Since the function of the bending die G in the present invention depends on the shape, the manufacturing method can be formed by cast molding, optical molding, or the like in addition to the cutting process described above, and the forming method is not limited.
- a cylindrical horizontal roller 4 is disposed above the upper surface 2 of the mold G, and the vertical axis with the vertical lower side as the central axis on the extension line of the central axis of the horizontal roller 4 is disposed.
- the roller 5 is provided on both sides of the horizontal roller 4, and the posture is fixed by the vertical roller 5 sandwiching the vertical surface 3, and the vertical roller 5 and the horizontal roller 4 are held by the roller support member 6.
- a bending carriage head ⁇ in which the horizontal roller 4 and the vertical roller 5 are incorporated in the support member 6 is created.
- the machining head ⁇ has a rotating shaft 7 at the top in the vertical direction, and the shaft 7 is held by a bearing 8a of the holder 8.
- the machining head H includes a cylinder 9 in its holder 9a for receiving a pressing force from the upper side. Further, the machining head ⁇ is supported by the holding member 6 while being kept horizontal, and the support member 6 is formed so as to move in the horizontal direction by the cylinder 10 and in the vertical direction by the cylinder 9. Thus, the head P is pressed against the inside of the groove 1 by the horizontal roller 4 while moving the head H along the upper surface 2 of the die G.
- control method of the cylinders 9 and 10 for moving the processing head H horizontally and vertically in the three-dimensional bending process of the tube mechanical control of the cam mechanism, electrical NC drive control, Control by a sequencer can be used, and the control method is not limited in the present invention.
- the bearing 8a of the holder 8 can also be used by using a rotation control device that rotates the shaft 7.
- the vertical roller 5 can be omitted.
- the horizontal roller 4 itself has a driving force, the driving mechanism and its control mechanism are simplified. You may be able to Thus, an example of the bending apparatus which can implement the method of the present invention is formed.
- the force of the horizontal roller 4 generates a force that presses the tube P against the wall surfaces on both sides of the raceway groove 1, and the stress of the raceway groove 1 bent while the tube P is bent by the stress. It is bent in the inside and inserted. In this way, the tube P can be bent along any three-dimensional track groove 1 formed in the mold G by moving the head ⁇ along the track groove 1.
- the tube P can be three-dimensionally bent by the above-described embodiment.
- the tube P is preheated prior to bending, and the Young's modulus of the tube P is determined. If the limit strain is reduced, three-dimensional bending can be performed at a higher speed, and the effect is extremely remarkable as compared to the conventional three-dimensional bending process.
- the tube P at room temperature that is not heated is bent.
- the tube P can be heated in the raceway groove 1 after bending.
- the heat source and heating method such as an electric resistance heater, a heat exchange tube, microwave heating, high frequency heating, far infrared heating, etc. are not limited.
- the present invention it is possible to cope with the physical properties of the tube P. That is, the force that can be dealt with by strengthening the mechanical strength of the bending device to deal with the tube P with a large Young's modulus, as shown in Fig. 3, depending on the diameter of the tube P on the horizontal roller 4 Adding a dimple 4a is effective for bending force. It is also effective to install a guide roller on the head ⁇ . That is, in FIG. 3, guide rollers 12 and 12 having the same orientation as the vertical rollers 5 and 5 are provided on both sides of the roller holder 11 provided on the extension 8b of the holder 8 via the vertical shaft 8c. The movement along 1 is guided and supported on the moving tip side.
- the bending method of the present invention is also effective for a tube P using a composite material such as a multilayer structure tube and a resin tube p equipped with an attached rubber protector.
- a composite material such as a multilayer structure tube and a resin tube p equipped with an attached rubber protector.
- it is effective to apply friction reduction treatment such as hard plating, grease coating, and silicon coating on the inner surface of groove 1 of bending jig G.
- the raceway groove 1 formed in the mold G is always displaced (moved) in the positive direction with respect to the traveling direction (moving direction, X-axis direction) of the horizontal roller 4 (or machining head ⁇ ).
- This is an example having a planar shape.
- the raceway groove 1 is reversed (in other words, the figure 4, As indicated by the solid line in FIG. 5, the horizontal roller 4 may move backward (return to the reverse direction) in the direction indicated by the straight line AB.
- the mold G itself in which the groove 1 is formed is placed in the plane. It was made to turn with. That is, as shown by phantom lines in FIGS. 4 and 5, in the case of FIG. 4, the mold G is rotated clockwise at the starting point of the mold G groove 1 or a point P1 in the vicinity thereof, In the case of 5, the inversion of the raceway groove 1 was canceled by rotating the mold G clockwise at a point P2 at or near the center of the mold G. In the present invention, inversion and a large bending angle are Therefore, the rotation direction at the points PI and P2 may be either the clockwise direction or the counterclockwise direction.
- the equipment used is a three-dimensional bending apparatus that implements the method of the present invention described with reference to FIGS.
- the tube to be bent was heated to about 150 ° C-160 ° C at room temperature.
- the front end of this tube was set in the groove 1 of the bending apparatus, and the machining head H was moved from the start end of the groove 1 to the end in 3 seconds. After moving the head ⁇ , the inside of the tube was cooled to room temperature by cooling for about 15 seconds.
- the cycle time required for bending the tube was about 20 seconds excluding the preheating time.
- the present invention is as described above, and processing is performed by placing the end on the front side of the tube (hereinafter referred to as the front end) in the three-dimensional bending-molded form at the origin of orthogonal coordinates by the X, Y, and Z axes.
- the front end For a plurality of points including a bent portion from the front end of the tube to the other end (hereinafter referred to as the rear end) as a reference point, the position on each axis of the coordinates and 2 on the coordinates at each position.
- the angle with respect to two vertical planes and the angle with respect to the horizontal plane are obtained, and the bending trajectory of the tube is divided into three block-shaped mold members based on the obtained position data and angle data.
- the method of the present invention since the method of the present invention is as described above, it can be applied to a metal tube such as aluminum with little return after being bent, and in particular, to the bending of a resin tube accompanied by heat softening treatment. It is extremely effective.
- FIG. 1 is a plan view of an example of a bending apparatus for carrying out the method of the present invention.
- FIG. 2 is a front view of the bending apparatus of FIG.
- FIG. 3 is a perspective view showing an outline of a bending mechanism for explaining the method of the present invention.
- FIG. 4 is a plan view of an example in which a bending die G used in the method of the present invention is rotated in a horizontal plane.
- FIG. 5 is a plan view of another example in which the bending die G used in the method of the present invention is rotated in a horizontal plane.
- FIG. 6 is a perspective view for explaining a conventional roll bending apparatus.
- FIG. 7 is a perspective view for explaining a conventional NC vendor.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/015492 WO2006043316A1 (ja) | 2004-10-20 | 2004-10-20 | 樹脂チューブの高速曲げ方法とこの方法に用いる三次元曲げ型 |
CNB2004800442726A CN100551674C (zh) | 2004-10-20 | 2004-10-20 | 树脂管件的高速弯曲方法以及该方法中所使用的三维弯曲模具 |
KR1020077006731A KR101112503B1 (ko) | 2004-10-20 | 2004-10-20 | 수지 튜브의 고속 굽힘 방법과 이 방법에 사용하는 3차원굽힘 형 |
JP2005518941A JPWO2006043316A1 (ja) | 2004-10-20 | 2004-10-20 | 樹脂チューブの高速曲げ方法とこの方法に用いる三次元曲げ型 |
TW094136822A TW200630204A (en) | 2004-10-20 | 2005-10-20 | High speed bending method of resin tube and three-dimensional bending die employing that method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/015492 WO2006043316A1 (ja) | 2004-10-20 | 2004-10-20 | 樹脂チューブの高速曲げ方法とこの方法に用いる三次元曲げ型 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006043316A1 true WO2006043316A1 (ja) | 2006-04-27 |
Family
ID=36202741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/015492 WO2006043316A1 (ja) | 2004-10-20 | 2004-10-20 | 樹脂チューブの高速曲げ方法とこの方法に用いる三次元曲げ型 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPWO2006043316A1 (ja) |
KR (1) | KR101112503B1 (ja) |
CN (1) | CN100551674C (ja) |
TW (1) | TW200630204A (ja) |
WO (1) | WO2006043316A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107127959A (zh) * | 2017-07-02 | 2017-09-05 | 浙江波士特机械有限公司 | 成型尼龙管自动热成型设备 |
WO2019163187A1 (ja) * | 2018-02-22 | 2019-08-29 | 三桜工業株式会社 | 曲げ型へのチューブ自動嵌め込み装置 |
IT202000030371A1 (it) * | 2020-12-10 | 2022-06-10 | Cte Sistemi Srl | Procedimento per ricavare una curva tridimensionale in un prodotto tubolare, e procedimento per la fabbricazione di prodotti tubolari a curvatura complessa |
Families Citing this family (10)
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CN101537449B (zh) * | 2009-04-10 | 2012-01-25 | 哈尔滨工业大学 | 型材变曲率零件弯曲成形的装置 |
CN103990666B (zh) * | 2014-06-03 | 2016-04-20 | 安庆市汇通汽车部件有限公司 | 多工位冷弯曲数控液压弯管机 |
KR101542521B1 (ko) * | 2015-05-20 | 2015-08-06 | 주식회사 유림모비스 | 밴딩장치 |
JP7060982B2 (ja) * | 2018-02-22 | 2022-04-27 | 三桜工業株式会社 | 曲げ型及び曲げ型の製造方法 |
CN109013772B (zh) * | 2018-09-29 | 2020-01-17 | 惠安闽居机械有限公司 | 一种汽车制造用管件加工的弯管机 |
CN111659780B (zh) * | 2020-06-18 | 2022-07-01 | 上海发那科机器人有限公司 | 一种机器人弯管加工方法及弯管加工装置 |
CN111842536A (zh) * | 2020-07-01 | 2020-10-30 | 北京航天新立科技有限公司 | 一种异形管路成型工艺及成型系统 |
CN112644002B (zh) * | 2020-12-18 | 2022-05-27 | 常州市新创智能科技有限公司 | 一种复合材料自动辊压成型系统及其控制方法 |
CN113458212B (zh) * | 2021-07-30 | 2023-05-02 | 浙江金马逊智能制造股份有限公司 | 手动弯管设备及其弯管方法 |
CN113458210B (zh) * | 2021-07-30 | 2023-05-26 | 浙江金马逊智能制造股份有限公司 | 弯管设备及其弯管组件 |
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JPS5959417A (ja) * | 1982-09-30 | 1984-04-05 | Toyoda Gosei Co Ltd | 合成樹脂ホ−スの曲げ加工方法 |
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JPH0885149A (ja) * | 1994-09-20 | 1996-04-02 | Mitsubishi Plastics Ind Ltd | 弯曲管の成形法 |
JP2000185324A (ja) * | 1998-12-22 | 2000-07-04 | Matsushita Electric Works Ltd | 金型のキャビティ形状創成方法 |
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US6257864B1 (en) | 1999-06-18 | 2001-07-10 | Itt Manufacturing Enterprises, Inc. | Apparatus for directing heat in a tube bending machine |
-
2004
- 2004-10-20 JP JP2005518941A patent/JPWO2006043316A1/ja active Pending
- 2004-10-20 CN CNB2004800442726A patent/CN100551674C/zh active Active
- 2004-10-20 WO PCT/JP2004/015492 patent/WO2006043316A1/ja active Application Filing
- 2004-10-20 KR KR1020077006731A patent/KR101112503B1/ko active IP Right Grant
-
2005
- 2005-10-20 TW TW094136822A patent/TW200630204A/zh unknown
Patent Citations (6)
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JPS5959417A (ja) * | 1982-09-30 | 1984-04-05 | Toyoda Gosei Co Ltd | 合成樹脂ホ−スの曲げ加工方法 |
JPH0251374B2 (ja) * | 1984-06-27 | 1990-11-07 | Tokai Rubber Ind Ltd | |
DE3939352A1 (de) * | 1989-11-29 | 1991-06-06 | Bundy Gmbh | Vorrichtung zum biegen von kleinkalibrigen rohrstuecken aus thermoplastischen kunststoffen |
JPH0885149A (ja) * | 1994-09-20 | 1996-04-02 | Mitsubishi Plastics Ind Ltd | 弯曲管の成形法 |
JP2000185324A (ja) * | 1998-12-22 | 2000-07-04 | Matsushita Electric Works Ltd | 金型のキャビティ形状創成方法 |
JP2004243347A (ja) * | 2003-02-12 | 2004-09-02 | Babcock Hitachi Kk | ボイラ耐圧部における3次元曲管の自動管曲げ方法及び自動管曲げ装置 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107127959A (zh) * | 2017-07-02 | 2017-09-05 | 浙江波士特机械有限公司 | 成型尼龙管自动热成型设备 |
WO2019163187A1 (ja) * | 2018-02-22 | 2019-08-29 | 三桜工業株式会社 | 曲げ型へのチューブ自動嵌め込み装置 |
JP2019142161A (ja) * | 2018-02-22 | 2019-08-29 | 三桜工業株式会社 | 曲げ型へのチューブ自動嵌め込み装置 |
KR20200121789A (ko) * | 2018-02-22 | 2020-10-26 | 사노 인더스트리얼 캄파니 리미티드 | 벤딩 다이에 대한 튜브 자동 끼움 삽입 장치 |
JP7025955B2 (ja) | 2018-02-22 | 2022-02-25 | 三桜工業株式会社 | 曲げ型へのチューブ自動嵌め込み装置 |
KR102413900B1 (ko) | 2018-02-22 | 2022-06-28 | 사노 인더스트리얼 캄파니 리미티드 | 벤딩 다이에 대한 튜브 자동 끼움 삽입 장치 |
IT202000030371A1 (it) * | 2020-12-10 | 2022-06-10 | Cte Sistemi Srl | Procedimento per ricavare una curva tridimensionale in un prodotto tubolare, e procedimento per la fabbricazione di prodotti tubolari a curvatura complessa |
EP4011516A1 (en) * | 2020-12-10 | 2022-06-15 | CTE Sistemi S.r.l. | Method for obtaining a three-dimensional curve in a tubular product, and method for manufacturing complex-curvature tubular products |
Also Published As
Publication number | Publication date |
---|---|
TW200630204A (en) | 2006-09-01 |
CN101044012A (zh) | 2007-09-26 |
CN100551674C (zh) | 2009-10-21 |
JPWO2006043316A1 (ja) | 2008-05-22 |
KR101112503B1 (ko) | 2012-02-24 |
KR20070065339A (ko) | 2007-06-22 |
TWI365133B (ja) | 2012-06-01 |
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