EP1838471A1 - Biegevorrichtung für langgestreckte werkstücke, insbesondere rohre und längenmesser für eine biegevorrichtung - Google Patents
Biegevorrichtung für langgestreckte werkstücke, insbesondere rohre und längenmesser für eine biegevorrichtungInfo
- Publication number
- EP1838471A1 EP1838471A1 EP06701189A EP06701189A EP1838471A1 EP 1838471 A1 EP1838471 A1 EP 1838471A1 EP 06701189 A EP06701189 A EP 06701189A EP 06701189 A EP06701189 A EP 06701189A EP 1838471 A1 EP1838471 A1 EP 1838471A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- workpiece
- length
- point
- longitudinal position
- 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.)
- Withdrawn
Links
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
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
-
- 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
- B21D7/14—Bending rods, profiles, or tubes combined with measuring of bends or lengths
Definitions
- Bending device for elongate workpieces in particular tubes and length measuring device for a bending device
- the invention relates to a bending device for elongate workpieces, in particular pipes according to the preamble of claim 1 and a length meter for such a bending device according to claim 19.
- a generic bending device has a semicircular bending segment, which is rotatable by means of a drive motor, and an associated stationary counter-holder for pressing the tube to the bending segment.
- a bending device is known for example from DE 195 10 330 C2.
- the bending segment also has a driver, which engages around a free end of the tube and entrains it during a bending-actuation of the bending segment, whereby the tube is bent along a circular arc of the bending segment.
- the pipe bend formed in this case should expediently lie at a point predetermined by the user on the pipe, ie at a pipe longitudinal position predetermined by the user.
- a pipe longitudinal position predetermined by the user it is known that the user, starting from a freely selectable reference point, applies a specified dimension to the pipe and marks a corresponding pipe longitudinal position which exceeds the nominal dimension spaced from the reference point.
- the marked tube longitudinal position on the still unbent tube should usually coincide with the position of a central axis of a bent after the bending process pipe leg.
- a bending starting point is to be determined, which is spaced over a compensation length from the pipe longitudinal position.
- the tube is then positioned with its determined bending start point at the O-mark of the bending segment, whereupon the bending process is started.
- the determination of the above-mentioned bending start point is carried out in a complicated manner either empirically by means of tests or by means of tables in which corresponding compensation lengths for the respective pipe diameters and bending radii are listed.
- the compensation length determined in this way can then be added to or subtracted from the nominal dimension, as a result of which the bending start point is obtained.
- the object of the invention is to provide a bending device for elongated workpieces, in particular pipes, as well as a length meter for such a bending device, with the aid of which a sheet can be bent at a predetermined longitudinal position on the workpiece in a simple manner.
- the bending device has a length gauge which has at least one application point for applying the workpiece, in particular a pipe, with its user-side tig marked longitudinal position.
- the length meter automatically spaced the tube longitudinal position over a compensation length of the bending start point, which is positioned in the correct position at the O-mark of the bending segment.
- Such a positionally correct positioning of the pipe-side bending start point at the O-mark of the bending segment therefore takes place automatically, without empirical attempts to determine the bending start point or a user-side calculation of the bending starting point from the pipe longitudinal position is necessary.
- the user therefore sets a longitudinal pipe position and marks it. Subsequently, the user places the tube with the marked longitudinal position at the point of application of the longitudinal blade, whereupon the bending process with the correctly positioned bending start point is started immediately.
- the length meter may be formed as a separate component, preferably as a template.
- the length meter can thus be replaced in a simple manner depending on a bending radius, a pipe diameter, etc.
- the length gauge formed in this way can be provided as a retrofit to an already existing bending device.
- the length meter can be rotatably mounted as a pivot lever, preferably on a stationary counter-holder for pressing the workpiece against the bending segment.
- a correct position applying the marked longitudinal position on the length meter is ensured if the contact point is preferably formed as a contact edge at the free end of the length of the knife designed as a pivot lever.
- the length meter formed as a pivoting lever has a rotation stop which is in circumferential contact with the workpiece or the pipe in the operating position of the length-measuring element.
- this knife can be formed with a handle or an actuating tab, which is about a thumb of the user operable.
- the length meter is designed as a bent molding. This can be formed in a deep-drawing process in cross section U-shaped profile, whereby the dimensional stability of the length increases.
- the at least one application point and / or the rotation stop can be formed on one, the workpiece facing leg of the U-profile, while the opposite leg of the U-profile is formed as a handle.
- the length meter may be formed with two contact points.
- the first point of application of the length blade spaced the marked longitudinal position on the pipe over a first compensation length of the bending start point of the tube.
- the marked pipe length position shall be applied at the first point of application of the length meter, if the user-selected reference point of the pipe in the bending segment rotation direction is behind the 0-mark of the bending segment.
- the marked longitudinal position is to be applied to the second application point of the length meter when the reference point in the bending segment rotation direction is before the 0 mark of the bending segment.
- the second point of application of the length meter spaces the marked longitudinal position on the tube over a second compensation length from the bending start point. the two points of application of the length gauge allow the user to utilize the tube bending machine from both sides, regardless of whether the user-selected reference point in the bending segment bending direction lies in front of or behind the O-mark of the bending segment lies.
- a transverse web can be bent away from the leg of the U profile facing the pipe to form the contact edge.
- the transverse web forming the contact edge may extend over the pipe in the operating position of the length meter.
- a first and a second transverse web can each be formed on the length meter in an analogous manner.
- these can preferably be connected to one another at their free ends via a connecting web.
- the second transverse web facing the bending segment is formed with a mandrel extending in the workpiece longitudinal direction, at the tip of which the second contact edge is formed.
- the length meter can be designed as an electronic component that calculates the at least one application point for the user-marked longitudinal position and displays it by means of a light source in approximately a laser on the workpiece, ie the tube.
- the distance between the contact point provided by the length blade and the bending start point corresponds to the abovementioned compensation length.
- FIG. 2 is a perspective view of a length of the bending device
- FIG. 4 is a representation corresponding to FIG. 1,
- Fig. 5 is a representation corresponding to FIG. 3, and
- Fig. 6 shows a bending device according to the second embodiment in a representation corresponding to FIG. 1.
- FIG. 1 shows in a partial view a bending device with a still unbent, rectilinearly extending workpiece 1, which by way of example is a tube here.
- the bending device comprises a bending segment 3, which is approximately a semicircular disc, which is formed with a circular arc 5 and a flat segment base 7.
- the bending segment 3 is inserted in Fig. 1 on a square shaft 9, which can be driven by means of a drive motor, not shown, in a direction indicated by the arrow 11 bending direction.
- a bending angle scaling 13 is provided, which indicates to the user the respective bending angle of the pipe bend to be formed.
- Scaling 13 indicates bending angles between 0 ° and 180 °. Accordingly, pipe bends with a bending angle of up to 180 ° can be formed with the bending device shown.
- Fig. 1 the bending segment 3 of the bending device is shown in its initial position before the start of a bending operation.
- the tube 1 lies opposite in a peripheral groove of a counter-holder 15, against which the tube 1 is pressed during the bending process.
- the counter-holder 15 is fixedly held in the bending device via a locking pin 17 with associated rotary knob 19.
- the bending segment 3 has a chop-shaped driver 21 on its segment base 7.
- the driver 21 engages around a free end of the tube 1 and takes this in a rotational actuation of the bending segment 3 in the direction of arrow 11, whereby the tube 1 is bent along the circular arc 5 of the bending segment 3.
- the bending device shown in Fig. 1 in addition to the bending segment 3 and the anvil 15 as a separate component to a length meter 23.
- the length gauge 23 is formed with two abutment edges 25, 27, which are shown in FIG.
- the tube 1 can be applied with a pre-determined by the user longitudinal position X, which is marked user side in FIG. 1 as a hatched position. This ensures that a bending start point 29 of the tube 1 is automatically positioned in the correct position at the 0 mark of the bending segment 3.
- the marked longitudinal position X of the tube 1 is spaced as shown in FIG. 3 over a nominal dimension L of a, selected by the user reference point P.
- L of a selected by the user reference point P.
- the reference point P is identical to the pipe end of the pipe 1.
- a reference point P an already existing pipe bend can be used.
- the nominal dimension L indicates the desired distance between the reference point P after the bending operation up to a central axis 31 of a bent pipe leg 33 of the pipe 1 after the bending operation, as can be seen from FIG.
- the length meter 23 is a shaped sheet metal part and, like a pivoting lever, is formed with a hub portion 35, via which the length meter 23 is rotatably mounted on the plug pin 17.
- the sheet metal part is at its, the hub portion 35 opposite free end 37 U-shaped profile with two legs 39, 41 is formed.
- the indicated in Fig. 2 pipe 1 facing leg 39 is formed with a rotation stopper 43 and transverse webs 45, 47. These are bent at right angles from the leg 39 and spaced apart in the longitudinal direction of the length meter 23.
- the transverse webs 45, 47 extend above the tube 1.
- the two transverse webs 45, 47 are connected at their free ends via a connecting web 49.
- the transverse web 45 with its end face facing away from the hub portion 33 of the length meter, forms the first contact edge 25 for the marked longitudinal position X of the tube 1.
- the transverse web 47 is formed with a mandrel 53 on its end face facing the hub portion 35 of the length meter 23 whose tip the second contact edge 27 is formed for the marked longitudinal position X of the tube 1.
- the side facing away from the tube 1 leg 41 of the U-shaped sheet metal part is formed as a handle or actuating tab det, the simple pivot actuation of the blade 23 z. B. by means of a thumb of the user.
- the still unbent tube 1 can be applied with its user-marked longitudinal position X either at the first contact edge 25 or at the second contact edge 27 of the length meter 23.
- the first contact edge 25 of the length meter 23 facing away from the reference point P is used:
- the reference point P ie the pipe end of the pipe 1, in the bending segment direction of rotation 11 is behind the O mark of the bending segment 3 arranged. Ie. that in Fig. 1, the bending operation takes place in the direction away from the reference point P.
- the longitudinal position X marked as a hatched position after the bending process coincides with the center axis 31 of the bent pipe leg 33, the bending start point 29 is therefore to be arranged by a first compensation length X 1 in front of the longitudinal position X of the still unbent pipe 1, as shown in FIGS and FIG. 3 is shown.
- a 90 ° arc 55 is bent, which extends between the arc end points A and B over an arc length I and a bending radius R.
- the compensation length X 1 in this case corresponds approximately to the bending radius R of the pipe bend 55 to be bent in FIG. 3.
- the still unbent tube 1 with its marked longitudinal position X is to be applied to the first contact edge 25 of the length meter 23, which automatically spaces the longitudinal position X over the compensation length X 1 from the bending start point 29.
- the bending start point 29 of the tube 1 is automatically positioned in the correct position at the 0 mark of the bending segment 3-without expensive measuring or calculation processes.
- the reference point P is in the bending direction 11 not positioned behind the O-mark of the bending segment 3, but before the O-mark. That is, the following bending operation takes place in the direction of the reference point P, not away from it.
- the bending start point 29 is to be arranged by a second compensation length X 2 after the longitudinal position X, as shown in FIG Figs. 4 and 5 is shown. It is apparent from FIG. 5 that in this case not the arc end point A (FIG. 3) but the arc end point B is to be positioned as the bending start point 29 at the 0 mark of the bending segment 3 in FIG. 4.
- the orientation of the reference point P to the 0-mark of the bending segment 3 is first to be determined.
- the orientation of the reference point P to the 0 mark is indicated by the arrow 59, whose direction coincides with the marking arrow 57. Therefore, in Fig. 1, the indicated by the arrow 57 marking edge 25 of the blade 23 is authoritative.
- FIG. 6 shows a tube bending device according to the second exemplary embodiment.
- the tube bending device according to the second embodiment is identical to the tube bending device according to FIGS. 1 and 4, unlike the first embodiment.
- the length-measuring device 23 is not rotatably mounted on the counter-holder 15 as a template in the manner of a pivoting lever.
- the length meter 23 according to FIG. 6 is designed as an electronic component that is arranged on the upper side of the bending segment 3.
- the length meter 23 has a control device 62 which is in signal connection with light sources 63 and 64. With a corresponding signal of the control device 62 to the light sources 63 and 64, a light spot is projected onto the outer circumference of the tube 1, which provides the application point 25, 27 for the user-marked longitudinal position X of the tube 1.
- the control device 62 is further in signal communication with a selector switch 65. Depending on whether the user-selected reference point P is in the bending segment rotation direction 11 before or after the 0-mark of the bending segment, by means of the selector switch 65, the associated application point 25, 27 can be selected, which is projected on the outside of the tube 1 either by means of the laser device 63 or by means of the laser device 64.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202005000353 | 2005-01-11 | ||
DE202005008068U DE202005008068U1 (de) | 2005-01-11 | 2005-05-23 | Meßvorrichtung zum Anbringen an einem Handbiegegerät für Rohre und Stangen |
DE200520010145 DE202005010145U1 (de) | 2005-06-28 | 2005-06-28 | Meßvorrichtung zum Anbringen an einem Handbiegegerät für Rohre und Stangen |
DE102005032057A DE102005032057A1 (de) | 2005-01-11 | 2005-07-08 | Meßvorrichtung zum Anbringen an einem Handbiegegerät für Rohre und Stangen |
PCT/EP2006/000080 WO2006074880A1 (de) | 2005-01-11 | 2006-01-07 | Biegevorrichtung für langgestreckte werkstücke, insbesondere rohre und längenmesser für eine biegevorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1838471A1 true EP1838471A1 (de) | 2007-10-03 |
Family
ID=36129282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06701189A Withdrawn EP1838471A1 (de) | 2005-01-11 | 2006-01-07 | Biegevorrichtung für langgestreckte werkstücke, insbesondere rohre und längenmesser für eine biegevorrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1838471A1 (de) |
CN (1) | CN101128274B (de) |
WO (1) | WO2006074880A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106003478A (zh) * | 2016-06-07 | 2016-10-12 | 淮南市鸿裕工业产品设计有限公司 | 一种塑料弯管机可调进料隔料装置 |
CN106272657A (zh) * | 2016-11-01 | 2017-01-04 | 四川多联实业有限公司 | 可调式切割塑料管道弯头夹装*** |
CN107470407A (zh) * | 2017-08-09 | 2017-12-15 | 陕西建工第五建设集团有限公司 | 接地扁铁煨弯器及煨弯方法 |
CN109201805B (zh) * | 2018-10-22 | 2024-04-16 | 南京信息职业技术学院 | 一种电子产品生产用零部件折弯设备及其使用方法 |
CN110986856B (zh) * | 2019-11-21 | 2021-08-10 | 中国船舶重工集团公司第七0五研究所 | 一种软管弯曲半径测试设备 |
CN112139320B (zh) * | 2020-09-10 | 2023-03-03 | 中国航发贵州黎阳航空动力有限公司 | 一种螺旋状导管加工方法 |
CN113523043B (zh) * | 2021-07-20 | 2022-12-02 | 中国建筑第八工程局有限公司 | 工件弯曲装置及工件弯曲方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR60981E (fr) * | 1950-11-17 | 1955-02-21 | Perfectionnements aux cintreuses notamment pour tubes et barres | |
FR1477524A (fr) * | 1966-01-31 | 1967-04-21 | Appareil de contrôle à un angle déterminé sur les machines à cintrer par emboutissage | |
DE19510330C2 (de) * | 1995-03-22 | 1997-03-27 | Rothenberger Werkzeuge Masch | Biegegerät |
DE20309207U1 (de) * | 2002-06-21 | 2003-09-25 | Fluidtechnik GmbH, 99887 Georgenthal | Vorrichtung zum Biegen von Rohren und Profilen |
-
2006
- 2006-01-07 EP EP06701189A patent/EP1838471A1/de not_active Withdrawn
- 2006-01-07 CN CN2006800054147A patent/CN101128274B/zh not_active Expired - Fee Related
- 2006-01-07 WO PCT/EP2006/000080 patent/WO2006074880A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2006074880A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101128274B (zh) | 2010-08-18 |
WO2006074880A1 (de) | 2006-07-20 |
CN101128274A (zh) | 2008-02-20 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Effective date: 20070628 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: HAINZINGER, JOHANN |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: NIEDERMEIER, JOHANN Inventor name: HAINZINGER, JOHANN |
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DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NIEDERMAIER, JOHANN |
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17Q | First examination report despatched |
Effective date: 20110721 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20111201 |