WO2010137467A1 - Procédé et appareil de mise en forme incrémentale - Google Patents

Procédé et appareil de mise en forme incrémentale Download PDF

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Publication number
WO2010137467A1
WO2010137467A1 PCT/JP2010/058143 JP2010058143W WO2010137467A1 WO 2010137467 A1 WO2010137467 A1 WO 2010137467A1 JP 2010058143 W JP2010058143 W JP 2010058143W WO 2010137467 A1 WO2010137467 A1 WO 2010137467A1
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WO
WIPO (PCT)
Prior art keywords
workpiece
tool
plane
mold
shape
Prior art date
Application number
PCT/JP2010/058143
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English (en)
Japanese (ja)
Inventor
明生 関口
Original Assignee
Sekiguchi Akio
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sekiguchi Akio filed Critical Sekiguchi Akio
Publication of WO2010137467A1 publication Critical patent/WO2010137467A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/18—Spinning using tools guided to produce the required profile
    • B21D22/185—Spinning using tools guided to produce the required profile making domed objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/005—Incremental shaping or bending, e.g. stepwise moving a shaping tool along the surface of the workpiece

Definitions

  • the present invention relates to a sequential molding method and apparatus for molding a workpiece into a predetermined three-dimensional shape.
  • drawing and counter-hydraulic forming are known as methods for obtaining irregularities and cup-shaped shapes by plastically deforming thin steel plates, aluminum plates, copper plates and the like.
  • tube hydroforming is known as a method for producing a product by applying plastic deformation to a pipe material.
  • Sequential stretch forming is to move the base plate fixed to the support frame with a tool trajectory that draws a contour trajectory along the mold using a rod-like tool that is just attached to the spindle of the milling machine.
  • the plate material is formed.
  • this processing method there are many cases where only a part of the mold is required or a general-purpose mold can be substituted, and it is possible to reduce the cost of the mold, especially for various types such as prototypes and custom-made products. Suitable for small volume production.
  • the shape of the part from which the mold is omitted is characterized in that its shape is determined mainly by the movement pattern of the tool.
  • JP-A-9-85355 Japanese Patent Laid-Open No. 10-314855
  • Sequential stretch forming is advantageous in terms of cost compared to other processing methods, especially in high-mix low-volume production because the cost of the mold can be suppressed.
  • this processing method the steeper inclination of the portion to be processed with respect to the plane on which the workpiece is placed, the more the thickness of the portion to be processed decreases, and the more easily breaks. For this reason, it is impossible to process a shape with a vertical wall or a recessed wall, or even if it can be molded, trial and error, special contrivance, and particularly time required for processing are difficult. .
  • an object of the present invention is to provide a sequential molding method and a processing method that can easily and quickly be molded without causing molding defects such as fractures by suppressing the reduction in thickness of shapes that have been difficult to mold. It is in providing the apparatus for implementation of.
  • a plate-like workpiece is fixed to a work support device, and a tool is moved in a three-dimensional direction relative to a predetermined shape.
  • the tool is moved on the XY plane parallel to the plane on which the plate-like workpiece is fixed, and the workpiece is kept parallel to the XY plane.
  • the mold is tilted with respect to the XY plane at the time of machining, and moved in the Z direction relative to the mold having a predetermined three-dimensional shape, so that the XY plane on which the tool moves at the time of the machining is
  • the machining is performed by relatively moving in the Z direction and relatively tilting in at least one direction.
  • the workpiece in the sequential molding method of the plate material according to the first aspect, is moved in the Z direction relative to a predetermined three-dimensional shape while keeping the workpiece parallel to the XY plane in which the tool moves during machining.
  • a forming die or a partial forming die When the workpiece is distorted by tilting the mold relative to the XY plane while fixing the workpiece with the workpiece support device, the workpiece is fixed by the support device and Machining is performed by freely moving the workpiece on the XY plane.
  • a forming die or a partial forming die a tool attached to the main shaft, a drive mechanism for driving the tool in a three-dimensional direction relative to the forming die, and A sequential molding apparatus for molding a plate-shaped workpiece with a molding die support, and a mounting portion for fixing the molding die to perform the sequential molding method for a plate material according to claim 1, and the mounting portion And a drive device for the tilt mechanism.
  • the plate-like workpiece is fixed to the workpiece support device, and the tool is moved relative to the predetermined shape in the three-dimensional direction, thereby sequentially forming the workpiece.
  • the tool is moved on the XY plane parallel to the plane on which the plate-like workpiece is fixed, and the workpiece is kept parallel to the XY plane, and the molding die is moved with respect to the XY plane at the time of machining.
  • the XY plane on which the tool moves during machining is moved in the Z direction relative to the predetermined three-dimensional shape by moving the tool in the Z direction relative to the predetermined three-dimensional mold.
  • the Z direction is relatively relative to a predetermined three-dimensional shape while keeping the workpiece parallel to the XY plane in which the tool moves during processing.
  • the workpiece is fixed by the support device when the workpiece is distorted by tilting the mold relative to the XY plane while fixing the workpiece with the workpiece support device.
  • molding die the tool attached to the main axis
  • a sequential molding apparatus for molding a plate-shaped workpiece comprising: a mounting portion for fixing a molding die, and an inclination for tilting the mounting portion in order to perform the sequential molding method for a plate material according to claim 1. Since at least one tilting mechanism and a drive device for the tilting mechanism are provided, it is possible to tilt a mold or a part of the mold during processing and to support the mold with high rigidity.
  • the invention of Item 2 can be implemented with high accuracy.
  • FIG. 1 is a three-dimensional view of an apparatus in a sequential molding method according to the present invention.
  • FIG. 2 is a view showing the structure of an apparatus for inclining a mold or a workpiece during processing.
  • FIG. 3 is an example of a tool that can be used in the present invention.
  • FIG. 4 is an example of a processing machine in which the present invention can be implemented.
  • FIG. 5 is an example of a processing machine in which the present invention can be implemented.
  • FIG. 6 is an example of a processing machine in which the present invention can be implemented.
  • FIG. 7 is a diagram showing the procedure of the embodiment of the present invention.
  • Example 1 is an example of the shape of a product molded by the implementation of the present invention.
  • FIG. 9 is a diagram showing the procedure of the embodiment of the present invention.
  • FIG. 10 is an example of the shape of a product molded by the implementation of the present invention.
  • FIG. 11 is a diagram showing the procedure of the embodiment of the present invention.
  • FIG. 12 is an example of the shape of a product molded by the implementation of the present invention.
  • FIG. 13 is a diagram showing the procedure of the embodiment of the present invention.
  • Example 4 FIG. 14 is an example of the shape of a product molded by the implementation of the present invention.
  • Example 4 FIG. 15 is a diagram showing the procedure of the embodiment of the present invention.
  • FIG. 16 is an example of the shape of a product molded by the implementation of the present invention. (Example 5)
  • the sequential forming apparatus of the present invention includes an apparatus for inclining a forming die or a workpiece at the time of processing according to claim 3 and an apparatus for horizontally supporting a plate-shaped workpiece at the time of processing.
  • an apparatus for inclining a forming die or a workpiece during processing according to claim 3 is referred to as an inclination supporting apparatus
  • an apparatus for horizontally supporting a plate-shaped workpiece during processing is referred to as a horizontal supporting apparatus.
  • the inclined support device and the horizontal support device are used.
  • only the inclined support device is used.
  • the inclined support device has a structure shown in FIG.
  • the face plate 10 to which the forming die or the work is attached can be given an arbitrary inclination in two directions orthogonal to each other along the rotation center 14 separated above the base 13 of the inclination apparatus by the inclination mechanism and the drive units 11 and 12. it can.
  • the horizontal support device can sandwich the base plate between the work support frames 20 and 21 at the start of processing, and can restrain the movement in the XY directions by the work fixing mechanism 22, and can be fixed as necessary. Can be released to freely move the workpiece in the XY directions. Further, the position of the workpiece at the time of machining can be appropriately maintained by the cylinder 23.
  • FIG. 1 can be moved in three-dimensional directions such as horizontal and vertical directions or rotation. Moreover, it can change to the shape suitable for every use not only in the shape of FIG. FIG. 3 is an example of a tool that can be replaced. Since these could also be used in conventional sequential molding methods, their usage is not explained for each. 4, 5, and 6 are examples of processing machines that can implement the present invention by moving a tool in a three-dimensional direction. Since the tool can be supported with high rigidity in the processing machine shown in FIG. 4, it is suitable for processing a hard work material. In the processing machine of FIG. 5, since the contact angle of a tool can be changed flexibly, a product with good surface quality can be processed. The processing machine of FIG.
  • FIG. 6 shows an example of an embodiment of the present invention. Moreover, the example of the shape of the product shape
  • the workpiece is sandwiched between the work support frames 20 and 21 of the horizontal support device as in Procedure 1 of FIG. 7, and the movement in the XY directions is restricted by the work fixing mechanism. Moreover, the partial shaping
  • the inclination mechanism is inclined by a predetermined minute amount, the tool is returned to the position where it contacts the workpiece, and the tool 30 is lowered by a predetermined minute amount in the vertical direction. After that, the tool is rotated in the horizontal direction so as to trace the surface of the predetermined product shape 43.
  • a predetermined product shape is obtained as shown in Procedure 2, Procedure 3, and Procedure 4 of FIG.
  • the workpiece may be distorted by giving an inclination while fixing the workpiece with the support frame 20 during machining.
  • FIG. 8 is an example of the shape of the product molded by this embodiment, and is a shape in which the cross section at the end of processing is translated / inclined with respect to the original surface where the workpiece was located. As an effect of this processing, the thickness of the original surface of the workpiece of the product is kept at the original plate thickness of the workpiece.
  • FIG. 9 shows another example of the embodiment of the present invention.
  • molded by this example is shown in FIG.
  • molding die 42 is attached to the face plate 10 of an inclination support mechanism.
  • a tool 30 suitable for processing is attached to the processing machine.
  • the tool 30 is rotated in the horizontal direction so as to trace the surface of the predetermined product shape 43. Repeat this several times if necessary.
  • the inclination mechanism is inclined by a predetermined minute amount, the tool is returned to the position where it contacts the workpiece, and the tool 30 is lowered by a predetermined minute amount in the vertical direction. After that, the tool is rotated in the horizontal direction so as to trace the surface of the predetermined product shape 43.
  • a predetermined product shape is obtained as shown in Procedure 2, Procedure 3, and Procedure 4 of FIG.
  • the workpiece may be distorted by giving an inclination while fixing the workpiece with the support frame 20 during machining.
  • FIG. 10 shows an example of the shape of a product molded according to this embodiment.
  • the shape is such that the original surface on which the workpiece is located and the cross section at the end of processing are concentric, similar and horizontal.
  • the thickness on the side surface of the product can be controlled by tilting the tilt mechanism during processing. That is, products having different thickness distributions can be formed even if the shapes are the same.
  • FIG. 11 shows another example of the embodiment of the present invention.
  • molded by this example is shown in FIG.
  • molding die 42 is attached to the face plate 10 of an inclination support mechanism.
  • a tool 30 suitable for processing is attached to the processing machine.
  • the tool 30 is lowered by a predetermined minute amount in the vertical direction, the tool is rotated in the horizontal direction so as to trace the surface of the predetermined product shape 43. Repeat this several times if necessary.
  • the inclination mechanism is inclined by a predetermined minute amount, the tool is returned to the position where it contacts the workpiece, and the tool 30 is lowered by a predetermined minute amount in the vertical direction. After that, the tool is rotated in the horizontal direction so as to trace the surface of the predetermined product shape 43.
  • a predetermined product shape is obtained as shown in Procedure 2, Procedure 3, and Procedure 4 of FIG.
  • the workpiece may be distorted by giving an inclination while fixing the workpiece with the support frame 20 during machining.
  • FIG. 12 is an example of the shape of the product molded by this embodiment, and is a shape that cannot be represented by simple projection from the plane remaining on the support frame. Such a shape is difficult or time-consuming to be formed by the conventional forming method, but according to this processing of the present invention, it can be formed at high speed and easily.
  • FIG. 13 shows another example of the embodiment of the present invention. Moreover, the example of the shape of the product shape
  • the workpiece is sandwiched between the work support frames 20 and 21 of the horizontal support device, and the movement in the XY directions is restricted by the work fixing mechanism. Further, the forming die 41 is attached to the face plate 10 of the inclined support mechanism. A tool 30 suitable for processing is attached to the processing machine. As shown in the procedure 2 of FIG. 13, when there is a part to be processed in advance, the mold 41 is processed in accordance with an example of a conventional sequential forming method.
  • the tool is rotated in the horizontal direction so as to press the work along the mold 41. Repeat this several times if necessary. Thereafter, in order to make an inclination, after the tool 30 is retracted to a position where it does not interfere, the inclination mechanism is inclined by a predetermined minute amount, the tool is returned to the position where it contacts the workpiece, and the tool 30 is lowered by a predetermined minute amount in the vertical direction. After that, the tool is rotated in the horizontal direction so as to trace the surface of the predetermined product shape 43. By repeating this, a predetermined product shape is obtained as shown in Procedure 2, Procedure 3, Procedure 4, Procedure 5, and Procedure 6 in FIG.
  • FIG. 14 is an example of the shape of the product molded by this embodiment, and has a shape having a dent on the head and a wall surface perpendicular to the head plane. Such a shape is difficult or time-consuming to be formed by the conventional forming method, but according to this processing of the present invention, it can be formed at high speed and easily.
  • the wall thickness of the vertical wall portion can be adjusted by changing the inclination of the mold by the inclined support mechanism.
  • FIG. 15 shows another example of the embodiment of the present invention. Moreover, the example of the shape of the product shape
  • the inclination mechanism is inclined by a predetermined minute amount
  • the tool is returned to the position where it contacts the workpiece, and the tool 30 is lowered by a predetermined minute amount in the vertical direction.
  • the tool is rotated in the horizontal direction so as to trace the surface of the predetermined product shape 43.
  • the strength of the workpiece is high, and a predetermined molding amount cannot be given only by one cycle.
  • FIG. 16 is an example of the shape of a product molded according to this embodiment, and is a shape having a processed portion that is inclined with respect to the central axis of the material and has a non-circular cross section.
  • Such a shape is not easy to determine the trajectory of the tool in the conventional forming method because the tool must be actively moved in the vertical direction with respect to the circumference of the work, and it takes extra time.
  • this shape can be formed relatively easily and at high speed by using this processing method.
  • the processing apparatus of the present invention has the feature that it can be easily used by combining it with a conventional processing apparatus, the processing apparatus itself becomes a product, or the processing machine itself incorporating this apparatus becomes a product. Can do.

Abstract

L'invention porte sur un procédé et sur un appareil de mise en forme incrémentale dans lequel on peut mettre en forme un produit classiquement difficile. On place une plaque de pièce à usiner entre des armatures de support (20, 21) et on la fixe à l'aide d'un mécanisme de fixation (22), et on fixe ensuite une matrice de mise en forme (42) au plan supérieur d'un dispositif de support de matrice de mise en forme (10). On comprime un outil (30) à partir du dessus tandis qu'on le déplace dans la direction XY, de telle sorte qu'on maintient la pièce à usiner le long de la matrice de mise en forme (42) et, en même temps, on abaisse un cylindre (23). Ensuite, on met en forme de manière incrémentale la pièce à usiner dans la direction Z tout en inclinant la matrice de mise en forme (42) d'un angle souhaité à l'aide du mécanisme d'inclinaison de matrice de mise en forme (11, 12). Lorsque la pièce à usiner est complètement portée par l'outil (30) et la matrice de mise en forme (42), on libère le mécanisme de fixation (22) de telle sorte que la pièce à usiner peut se déplacer dans la direction horizontale.
PCT/JP2010/058143 2009-05-25 2010-05-07 Procédé et appareil de mise en forme incrémentale WO2010137467A1 (fr)

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JP2009124807A JP4530301B1 (ja) 2009-05-25 2009-05-25 逐次成形方法および装置
JP2009-124807 2009-05-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113477796A (zh) * 2021-07-29 2021-10-08 山东科技大学 一种用于单点渐进成形的柔性支撑装置及成形方法
CN113857767A (zh) * 2021-10-26 2021-12-31 山东大学 曲面薄壁件表面微织构自适应加工成形的工具头及方法
US20230035585A1 (en) * 2021-07-21 2023-02-02 The Boeing Company Slope-matched stylus tool for incremental sheet forming

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107030219B (zh) * 2017-05-26 2018-11-27 西安理工大学 一种板料渐进成形自动夹持装置
JP6868534B2 (ja) * 2017-10-31 2021-05-12 明生 関口 逐次成形方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0985355A (ja) * 1995-07-20 1997-03-31 Hitachi Ltd 金属板の逐次張出し成形方法及びその装置
JP2003245727A (ja) * 2002-02-20 2003-09-02 Honda Motor Co Ltd 逐次成形装置
JP2005028422A (ja) * 2003-07-09 2005-02-03 Yokohama Seiki Kk 逐次成形方法及び該方法で成形された成形品
JP2006341262A (ja) * 2005-06-07 2006-12-21 Amino:Kk 薄板の成形方法および装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5143338B2 (ja) * 2004-12-27 2013-02-13 株式会社三五 ワークの異径部成形方法及び装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0985355A (ja) * 1995-07-20 1997-03-31 Hitachi Ltd 金属板の逐次張出し成形方法及びその装置
JP2003245727A (ja) * 2002-02-20 2003-09-02 Honda Motor Co Ltd 逐次成形装置
JP2005028422A (ja) * 2003-07-09 2005-02-03 Yokohama Seiki Kk 逐次成形方法及び該方法で成形された成形品
JP2006341262A (ja) * 2005-06-07 2006-12-21 Amino:Kk 薄板の成形方法および装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230035585A1 (en) * 2021-07-21 2023-02-02 The Boeing Company Slope-matched stylus tool for incremental sheet forming
CN113477796A (zh) * 2021-07-29 2021-10-08 山东科技大学 一种用于单点渐进成形的柔性支撑装置及成形方法
CN113477796B (zh) * 2021-07-29 2022-12-16 山东科技大学 一种用于单点渐进成形的柔性支撑装置及成形方法
CN113857767A (zh) * 2021-10-26 2021-12-31 山东大学 曲面薄壁件表面微织构自适应加工成形的工具头及方法
CN113857767B (zh) * 2021-10-26 2022-08-12 山东大学 曲面薄壁件表面微织构自适应加工成形的工具头及方法

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