EP3015181A1 - Biegeform für armbrust zum biegen eines rohrs - Google Patents

Biegeform für armbrust zum biegen eines rohrs Download PDF

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Publication number
EP3015181A1
EP3015181A1 EP15191693.9A EP15191693A EP3015181A1 EP 3015181 A1 EP3015181 A1 EP 3015181A1 EP 15191693 A EP15191693 A EP 15191693A EP 3015181 A1 EP3015181 A1 EP 3015181A1
Authority
EP
European Patent Office
Prior art keywords
bending
tube
shape
notches
groove
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP15191693.9A
Other languages
English (en)
French (fr)
Other versions
EP3015181B1 (de
Inventor
Benoît HAMM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Virax SA
Original Assignee
Virax SA
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 Virax SA filed Critical Virax SA
Publication of EP3015181A1 publication Critical patent/EP3015181A1/de
Application granted granted Critical
Publication of EP3015181B1 publication Critical patent/EP3015181B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
    • B21D7/063—Pliers with forming dies

Definitions

  • the present invention relates to a half-moon bending form for crossbow bending a tube, having a groove section substantially "U" arranged to accommodate a portion to be bent of a tube whose dimensions were previously raised, said groove extending between the respective rounded edges of two opposite faces of said shape, said shape further comprising means-marks for positioning the tube portion in the groove in such a way that it is properly positioned in the throat in order to undergo bending with respect to the previously measured dimensions.
  • Crossbows for bending a tube are conventionally composed of a half-moon bending form, and a transverse bar supporting a pair of generally identical counter-forms called to cooperate with the half-moon bending form.
  • the pair of bending forms is pivotally mounted on the transverse bar, so as to progressively follow the movement of each of the linear parts of the tube located on either side of the portion being bent and which itself is lodged in the groove of the half-moon shape.
  • WO 2012/129345 also discloses an apparatus for bending a crossbow type tube having two counter-shaped pave-shaped having two opposite faces equipped with grooves whose profile is adapted to accommodate respectively two different diameters of tube and a removable half-moon bending shape and interchangeable.
  • Half-moon bending forms are also known, at least one of the two opposite faces of which comprises two lines each extending from its rounded edge, parallel to the axis of symmetry of said shape, on either side. and equidistant from said axis of symmetry.
  • the user of a bending crossbow takes measurements beforehand allowing him to know the length of a tube between a given point of this tube and the neutral fiber of the return of the bend he hears. achieve. It has for use to affix then on the tube to bend a line materializing the desired dimension. To make the bend, it positions the tube in the groove of the bending form, so that the marked line on the tube is aligned with one of the lines that comprises at least one of the faces of said shape.
  • Such a procedure is supposed to allow bending of the tube in line with the measurements previously recorded by the user at the location where the tube is to be installed.
  • the portion to be bent of the tube is generally housed deep in the groove of the half-moon shape, to the point of hindering or preventing any visualization of the line previously marked by the operator on the tube.
  • reading this feature is usually only possible by properly raising and orienting the bending crossbow, which is both imprecise, time-consuming and tedious, especially when the bending tube is measuring several times. meters, which is frequently the case.
  • the present invention aims to overcome this disadvantage by proposing a form of half-moon bending to proceed easily, quickly and accurately to the proper positioning of the tube in the groove relative to the reference means of which is provided with said bending form, in order to to bend, for example at 90 °, a portion of this tube.
  • the subject of the invention is a form of half-moon bending of the kind indicated in the preamble, characterized in that the reference means are defined by at least one pair notches formed in the rounded edge of at least one of the opposite faces of said shape, said notches communicating with the groove and each extending equidistant from the axis of symmetry of said shape.
  • the user can immediately locate the marking previously affixed to the tube, since it is visible through a notch.
  • the portion to be bent of the tube can thus be properly housed in the groove in a reduced time and without trial and error.
  • said notches of said at least one pair of notches are symmetrical with respect to the axis of symmetry of the shape.
  • said shape comprises at least a first pair of notches formed in the rounded edge of a first opposite face of the shape and at least a second pair of notches formed in the rounded edge of the second opposite face of the form.
  • the half-moon bending form according to the invention is further characterized in that the first pair of notches and the second pair of notches are symmetrical with respect to a plane of symmetry of said parallel extending form. said first and second opposite sides of said shape.
  • the present application also aims to protect a bending crossbow of a tube, characterized in that it comprises a form of half-moon bending as previously described.
  • the present invention aims at a half-moon bending form 1 for a bending crossbow 2 of a tube 3.
  • the bending form 1 comprises a groove 4 of substantially "U" -shaped section extending between the rounded edges 6, 7 respectively of its two opposite faces 8, 9.
  • the groove 4 is arranged to house a portion 5 to bend at 90 ° of the tube 3 and has a radius of curvature adapted according to the diameter of said tube 3.
  • the bending form 1 is capable of cooperating with a pair of counterforms 10, 11, such as in particular those illustrated in FIG. figure 2 each of which is substantially in the form of a pad pivotally mounted on a transverse bar 12 of the crossbow 2 bending.
  • the bending form 1 comprises a first pair of identical notches 13, 14 formed in the rounded edge 6 of a first opposite face 8 of the form 1 and at least one second pair of identical notches 15, 16 formed in the rounded edge 7 of the second opposite face 9 of the shape 1.
  • These notches 13, 14, 15, 16 each extend equidistant from the axis of symmetry S of the shape 1 and each communicate with the groove 4 which allows to visualize a portion 5 to be bent of a tube 3 which is housed, and therefore a possible line 17 or 18 affixed by a user on said portion 5.
  • the user can properly position the portion 5 to be bent of the tube 3 by matching a line 17, 18 with a notch 13, 14.
  • first pair of notches 13, 14 and the second pair of notches 15, 16 are symmetrical with respect to a plane of symmetry of said shape 1 extending parallel to said first and second opposite faces 8, 9 of said shape 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP15191693.9A 2014-10-28 2015-10-27 Biegeform für armbrust zum biegen eines rohrs Active EP3015181B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1460333A FR3027537B1 (fr) 2014-10-28 2014-10-28 Forme de cintrage pour arbalete de cintrage d'un tube.

Publications (2)

Publication Number Publication Date
EP3015181A1 true EP3015181A1 (de) 2016-05-04
EP3015181B1 EP3015181B1 (de) 2017-04-26

Family

ID=52021339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15191693.9A Active EP3015181B1 (de) 2014-10-28 2015-10-27 Biegeform für armbrust zum biegen eines rohrs

Country Status (3)

Country Link
EP (1) EP3015181B1 (de)
ES (1) ES2634674T3 (de)
FR (1) FR3027537B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113059037B (zh) * 2021-03-30 2022-09-13 韶山市天盛机械制造有限公司 一种汽车尾气管的精密加工模具及其加工方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626505A1 (fr) 1988-02-03 1989-08-04 Foell Remswerk Appareil a cintrer des tubes
WO2012129345A1 (en) 2011-03-21 2012-09-27 Irwin Industrial Tool Company Tube and pipe benders and methods of bending same
WO2013131179A1 (en) * 2012-03-05 2013-09-12 Michel Leclerc Pipe bending apparatus and method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626505A1 (fr) 1988-02-03 1989-08-04 Foell Remswerk Appareil a cintrer des tubes
WO2012129345A1 (en) 2011-03-21 2012-09-27 Irwin Industrial Tool Company Tube and pipe benders and methods of bending same
WO2013131179A1 (en) * 2012-03-05 2013-09-12 Michel Leclerc Pipe bending apparatus and method thereof

Also Published As

Publication number Publication date
ES2634674T3 (es) 2017-09-28
FR3027537B1 (fr) 2016-12-23
EP3015181B1 (de) 2017-04-26
FR3027537A1 (fr) 2016-04-29

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