EP0245623B1 - Machine à plier des tubes - Google Patents
Machine à plier des tubes Download PDFInfo
- Publication number
- EP0245623B1 EP0245623B1 EP87104356A EP87104356A EP0245623B1 EP 0245623 B1 EP0245623 B1 EP 0245623B1 EP 87104356 A EP87104356 A EP 87104356A EP 87104356 A EP87104356 A EP 87104356A EP 0245623 B1 EP0245623 B1 EP 0245623B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- pipe
- bending
- clamped
- jaw
- 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.)
- Expired - Lifetime
Links
Images
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
- B21D7/021—Construction of forming members having more than one groove
-
- 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
Definitions
- the invention relates to a pipe bending machine for bending pipes.
- a pipe bending machine with the features specified in the preamble of claim 1 is known from FR-A-2 530 980.
- This pipe bending machine has a bending template with a clamping body which encloses the pipe to be bent in cross-section by 180 °.
- a displaceable clamping jaw is provided, which is also provided with a clamping body, which encloses the cross section of the pipe to be bent by 180 °.
- the clamping jaw is arranged on a bending table which, together with the bending template, can be pivoted around the axis of the bending template, the tube clamped between the clamping bodies being pulled around the bending template and thereby being bent.
- each clamping body is provided with different clamping surfaces which are arranged at different heights.
- one clamping surface of one clamping body is adapted in its course to the associated opposite clamping surface of the other clamping body.
- the height of the clamping bodies can be adjusted in order to adjust the required pair of clamping surfaces to the height of the pipe.
- a similar pipe bending machine is also described in DE-A 0 200 979.
- Movable clamping bodies are also provided on the bending template and on the clamping jaw, which can be adjusted so that different clamping surfaces of both clamping bodies are brought into the working position in which they engage the pipe can.
- the clamping surfaces of both clamping bodies are each assigned to one another. This means that if one clamping body is adjusted, the other clamping body must also be adjusted in order to use the desired pair of clamping surfaces.
- the present invention is based on the object of creating a bending template with a clamping jaw fastened to this and a counter clamping jaw fastened to a clamping jaw carrier, which allow a large number of clamping surfaces of different spatial shapes with little construction effort or a few clamping jaws.
- the one clamping jaw has a clamping surface in the form of a half-shell, which is half-shell-shaped over its entire length, so that it encompasses the tube section in contact over the length of the clamping by an angular amount of 180 °, while the opposite jaw has several interlocking clamping surfaces of different spatial shapes has, which in certain areas only partially encompass the section of the pipe to be clamped by 180 °, so that in other words there is no complete clamping.
- the one clamping jaw with the several different clamping surfaces is fixed in place or can be in most cases and therefore does not need a drive.
- the clamping body arranged on the clamping jaw is rotatably arranged and has a plurality of clamping surfaces distributed over its circumference, each individual clamping surface being only one of the contours of the pipe section to be clamped has a corresponding clamping surface and the bending template has a clamping body with a clamping surface which has several different contours of the pipe sections to be clamped.
- This proposal has the advantage that the arrangement of several clamping surfaces of different designs in a jaw or, if necessary, one above the other, which is arranged axially displaceably on the bending template, due to their local concentration at one point, the unimpeded bending of a pipe by an amount up to Allow 180 °. It is particularly advantageous to arrange two and more than two different clamping surfaces in one clamping jaw on a clamping jaw arranged on the bending template.
- the solution according to the invention makes it possible to arrange many different clamping surfaces on one clamping jaw. This then gives the further advantage that this clamping jaw arranged on the bending template can be screwed to the bending template, so that only the counter-jaw arranged on the clamping jaw carrier needs to be adjusted in terms of movement.
- the clamping body of the bending template which has several different clamping surfaces, can also be axially movable or fixedly screwed onto the bending template.
- Figure 1 shows a conventional pipe bending machine with a feed carriage 10, which is on one or more guide rails 11 on the top of the machine housing 12 can slide back and forth.
- the feed carriage 10 has a hollow cylinder 13, in the interior of which there is a clamping sleeve 14 in which the end region of the pipe section or pipe 15 to be bent is clamped.
- the pipe section 15 is guided around a pivotably mounted bending template 16 which has a groove 17 for the pipe which corresponds to the pipe radius.
- a clamping jaw 19 is pressed by means of a clamping device 18, which also has a groove corresponding to the pipe radius as clamping surface and clamps the pipe 15 on the bending template 16.
- the bending template is provided with a releasably attached clamping jaw 25 arranged thereon.
- a hydraulic cylinder 20 is shown as an example, which moves the clamping device 18 of the clamping jaw 19 towards the bending template 16 for clamping the pipe or removes it from this template.
- the bending template 16 is fixedly arranged on the bending table 21, while the clamping device 18 can be pushed back and forth in the indicated arrow direction 22 via the cylinder 20 shown as an example. If the bending template 16 is pivoted over the bending table 21 together with the clamping jaw 19 in the direction of the arrow 23, so the pipe section 15 receives a curvature which corresponds to the profile of the bending template 16. During this bending process, the end part of the pipe section 15 remains clamped in the clamping sleeve 14 of the feed carriage 10 in order to safely guide the pipe section in all positions.
- a slide rail 24 is pressed onto this pipe section part, which also has a groove that corresponds to the pipe radius.
- the clamping sleeve 14 of the feed carriage 10 not only clamps the pipe section 15 firmly, but also turns it by amounts up to 360 ° if successive pipe bends are to be bent in different directions.
- a hydraulic motor rotates a worm which interacts with a worm wheel (not shown) which is connected to the clamping sleeve 14.
- FIG. 2 shows an exhaust pipe which can be produced with the bending machine and in which curved sections or pipe bends S 1 and S 2 as well as S 3 and S 4 are directly connected. There are also linear intermediate lengths L 1, L 2 and L 3, which, however, do not need to be present except for the length L 1.
- the tube is provided with an expansion 26 at its front end.
- Figure 3 shows that the jaw holder 18 is provided on both sides with cantilevers 27 and 27a, which protrude in the direction of the bending template 16 and carry at their front end via an axis of rotation 28 the counter jaw 19, which is designed according to the embodiment as a rectangular body and four Has clamping surfaces which are provided with semicircular depressions in cross section, which give the clamping surfaces 29, 30, 31 and 32. These clamping surfaces have different spatial shapes, but the common factor that they encompass the pipe section to be clamped in this in a semicircle over the entire clamping length.
- the clamping jaw 25 arranged on the bending template 16 has three different circumferential grooves 33, 34 and 35, which are also shown in FIG.
- the clamping jaw 25 is fastened to the bending template 16 by screws, not shown in the drawing, i.e. that this is not slidably disposed relative to the bending template. This solution is particularly advantageous because it does not require any movement mechanisms.
- FIG. 3 shows that the clamping jaw 25 is arranged on the bending template 16 opposite another clamping jaw 36 which has a clamping surface with different radii of its half-shells. So the part 37 is provided with a larger radius of curvature and the part 38 with a smaller radius. This is done in order to clamp the widened end 26 in a pipe 15 according to FIG. 2 through the half-shell-shaped section 37 and the subsequent part with the radius of smaller cross section 38.
- FIG. 4 shows that the clamping jaw 25 with the recesses 33, 34 and 35 arranged in it cannot grip around the tube section clamped in each case over half the circular area, but can only grip around incompletely in the areas in which the bends 34 and 35 intersect.
- FIG. 5 shows that two clamping bodies 25 and 25a are arranged one above the other on the bending template 16, the clamping body 25 having three different clamping surfaces and the clamping body 25a having two different clamping surfaces.
- the clamping bodies 25 and 25a can be adjusted in the vertical direction by means of a hydraulic piston-cylinder arrangement in such a way that the cylinder 36 is arranged inside the bending template 16 and the piston rod 37 protrudes upward, which has a cross member 38 which is connected to the jaws 25 and 25a.
- the piston-cylinder arrangement can thus, as shown in FIG. 5, selectively act on the clamping jaws 25, but also by lowering the clamping jaws 25a.
- the solution proposed in FIG. 5, shown on the bending template can also be present on the counter-jaw holder 18, with the proviso that, in contrast to FIG. 3, the clamping surfaces are not arranged on a body rotatable about a horizontal axis, but on a body that can be moved in the vertical plane.
- the clamping surfaces arranged one above the other are not as favorable as the clamping surfaces arranged in different planes, which are shown in FIG. 3 and can be rotated about the axis of rotation 28. In some cases, three surfaces, but also five or six surfaces can be used.
- FIG. 6 shows that the bending template 16, shown in the drawings FIG. 6B and FIG. 6C, has a clamping jaw 25 which has a uniform design of its clamping surface, which can also be seen in a perspective view from FIG. 6A with the proviso that one has a diameter there is an enlarged half-shell 39 and a half-shell 40 with a smaller diameter, for example with the tube end 26 widened in diameter with the subsequent one Pinch part of the tube with the usual diameter.
- the counter jaw 19 corresponding to FIG.
- FIG. 6A thus shows a design in which the pipe section to be clamped is completely grasped over the angular amount of 180 ° over the length of the pipe section to be clamped in, while the clamping jaw 25 arranged on the bending template 16 also has a full surface after the training in FIG. 6C 6 shows an entrapment extending over an angular amount of 180 °, but FIG. 6B shows this full-area entrapment only by the true pipe diameter, but not in the clamping section 39.
- FIG. 7 shows the counter clamping jaws 19 with the proviso that a plurality of clamping surfaces, in the present case two clamping surfaces, are also present on a clamping surface.
- these are individually designed over their entire surface so that, according to the invention, they interact with a counter-clamping surface that does not cover the entire surface of the tube, i.e. with respect to the length of the counter-clamping surface. over an amount of 180 °, as can be seen, for example, from the node of the drawing in FIG.
- the counter-clamping jaws 19 is displaceably mounted in the indicated double arrow direction 41.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Claims (2)
- Une machine à plier des tubes, avec un plateau de pliage (21), pivotable sur un axe, présentant un gabarit de pliage (16) et une mâchoire de serrage pouvant se déplacer par rapport à celui-ci, et avec un chariot d'avance (10) mobile présentant un mandrin de serrage rotatif (14), le gabarit de pliage (16) et la mâchoire présentant, chacun, des éléments de serrage (19, 25), en correspondance l'un avec l'autre, à faces de serrage (29, 30, 31, 32) adaptées à des segments droits et courbés pour le serrage du tube à plier, les faces de serrage (29, 30, 31, 32) de l'un des éléments de serrage (19) étant séparées dans l'espace et pouvant être amenées individuellement en position de travail, caractérisée en ce que l'autre élément de serrage (25) a plusieurs faces de serrage se développant l'une dans l'autre, qui présentent pour des segments de tube à serrer plusieurs contours différents (33,34,35), chacune d'elles coopérant, dans la même position de cet élément de serrage (25), avec une autre face de serrage (29,30,31,32), amenée dans la position de travail de l'un des éléments de serrage (19), chaque face de serrage de l'autre élément de serrage (25) n'entourant le segment de tube à serrer que par endroits sur toute la surface, du côté adjacent correspondant, suivant une valeur d'angle de 180°.
- Machine à plier des tubes suivant la revendication 1, caractérisée en ce que l'élément de serrage (19) disposé sur la mâchoire de serrage (18) est disposé de manière rotative et présente plusieurs faces de serrage (29, 30, 31, 32) réparties sur sa périphérie, chaque face de serrage individuelle ne présentant qu'une face de serrage correspondant au contour du segment de tube à serrer, et que le gabarit de pliage (16) présente un élément de serrage (25) à une seule face de serrage présentant plusieurs contours différents (33, 34, 35) du segment de tube à serrer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92113248A EP0513864B1 (fr) | 1986-05-14 | 1987-03-24 | Méthode d'utilisation d'une cintreuse de tubes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863616302 DE3616302A1 (de) | 1986-05-14 | 1986-05-14 | Rohrbiegemaschine |
DE3616302 | 1986-05-14 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92113248.6 Division-Into | 1992-08-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0245623A2 EP0245623A2 (fr) | 1987-11-19 |
EP0245623A3 EP0245623A3 (en) | 1990-03-28 |
EP0245623B1 true EP0245623B1 (fr) | 1993-10-13 |
Family
ID=6300854
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92113248A Expired - Lifetime EP0513864B1 (fr) | 1986-05-14 | 1987-03-24 | Méthode d'utilisation d'une cintreuse de tubes |
EP87104356A Expired - Lifetime EP0245623B1 (fr) | 1986-05-14 | 1987-03-24 | Machine à plier des tubes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92113248A Expired - Lifetime EP0513864B1 (fr) | 1986-05-14 | 1987-03-24 | Méthode d'utilisation d'une cintreuse de tubes |
Country Status (4)
Country | Link |
---|---|
US (1) | US4888971A (fr) |
EP (2) | EP0513864B1 (fr) |
CA (1) | CA1294196C (fr) |
DE (3) | DE3616302A1 (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2624038A1 (fr) * | 1987-12-02 | 1989-06-09 | Snecma | Outillage de cintrage de canalisations et procede de fabrication d'une canalisation a embout soude |
DE3835173A1 (de) * | 1988-10-15 | 1990-04-19 | Pulzer Guenther F | Verfahren und vorrichtung zum biegen von stangenfoermigen werkstuecken |
US5353622A (en) * | 1993-11-10 | 1994-10-11 | Theener Ronald E | Articulated three point pipe bending apparatus |
DE19530805A1 (de) * | 1995-08-22 | 1997-02-27 | Schwarze Rigobert | CNC-gesteuerte Rohrbiegemaschine |
US5784913A (en) * | 1995-10-06 | 1998-07-28 | Pines Manufacturing | Pressure die assist boost system for tube bending machine |
US5918496A (en) * | 1997-11-13 | 1999-07-06 | Eagle Precision Technologies, Inc. | Adjustable clamp die for tube bending machine |
FR2774317B1 (fr) * | 1998-01-30 | 2000-04-07 | Silfax | Machine a cintrer les tubes et son dispositif a barillet |
US6038903A (en) * | 1998-03-09 | 2000-03-21 | Eaton Leonard, Inc. | Dual headed bending machine |
US7076982B2 (en) * | 2004-01-09 | 2006-07-18 | Jeffrey & Connie Coop, Llc | Concentric bore bend die and clamp insert assembly |
FR2892648B1 (fr) * | 2005-10-28 | 2007-12-14 | Numalliance Soc Par Actions Si | Machine pour la cambrage, le fromage, le pliage ou le cintrage de barres, de fils ou de profiles |
DE102005058168B4 (de) * | 2005-12-05 | 2009-08-06 | Benteler Automobiltechnik Gmbh | Gleitschiene für eine Biegemaschine |
US7254972B1 (en) * | 2006-06-28 | 2007-08-14 | Chia Sheng Machinery Co., Ltd. | Moving mold mechanism of a pipe bending machine |
US10150154B2 (en) | 2013-11-14 | 2018-12-11 | Robert Kyle Hughes, JR. | Tube bending machine with reversible clamp assembly |
CN104148463A (zh) * | 2014-07-04 | 2014-11-19 | 珠海格力电器股份有限公司 | 空调器、空调器管路件及空调器管路件折弯方法 |
US10070909B2 (en) | 2015-05-27 | 2018-09-11 | Medos International Sàrl | Devices and methods for bending or cutting implants |
US10076376B2 (en) | 2015-05-27 | 2018-09-18 | Medos International Sàrl | Devices and methods for bending or cutting implants |
ITUA20161931A1 (it) * | 2016-03-23 | 2017-09-23 | Crippa Spa | Dispositivo per la curvatura di un materiale filiforme |
US10194957B2 (en) | 2016-05-13 | 2019-02-05 | Medos International Sarl | Devices and methods for bending or cutting implants |
CN109604397A (zh) * | 2018-12-07 | 2019-04-12 | 中国航发南方工业有限公司 | 弯管机 |
CN110421030A (zh) * | 2019-08-27 | 2019-11-08 | 武义义蓝日用金属制品有限公司 | 一种用于船舶钢材折弯的滚圆设备 |
CN114406385A (zh) * | 2022-03-01 | 2022-04-29 | 江苏斯普锐特智能装备有限公司 | 一种火花机夹具和具有其的火花机 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2306221A (en) * | 1940-01-16 | 1942-12-22 | Parker | Pipe bending machine |
DE1297064B (de) * | 1964-08-05 | 1969-06-12 | Hilgers Maschinen U App Bauans | Vollautomatische Rohrbiegemaschine zum Biegen von Rohren, bei welchen in verschiedenen Ebenen liegende Boegen unmittelbar aneinander schliessen |
US3394571A (en) * | 1966-04-14 | 1968-07-30 | William C. Rose | Conduit-bending machines |
FR1602951A (en) * | 1968-04-09 | 1971-03-01 | Tube bending apparatus | |
DE2626202C2 (de) * | 1976-06-11 | 1992-10-29 | Rigobert Dipl.-Ing. 5000 Köln Schwarze | Rohrbiegemaschine |
DE2711340C3 (de) * | 1977-03-16 | 1986-11-13 | Lang, Thomas Peter, Dipl.-Wirtsch.-Ing., 6120 Michelstadt | Vorrichtung zum Kaltbiegen von Strangmaterial |
DE3033300A1 (de) * | 1980-09-04 | 1982-04-01 | Rigobert Dipl.-Ing. 5000 Köln Schwarze | Rohrbiegemaschine |
DE3033950C2 (de) * | 1980-09-10 | 1985-06-27 | Thomas Peter Dipl.-Wirtsch.-Ing. 6120 Michelstadt Lang | Rohrbiegemaschine |
US4495788A (en) * | 1982-08-02 | 1985-01-29 | Eaton-Leonard Corporation | Multiple curvature bender |
DE3407499A1 (de) * | 1983-03-26 | 1984-09-27 | Rigobert Dipl.-Ing. 5000 Köln Schwarze | Rohrbiegemaschine |
JPS59178131A (ja) * | 1983-03-28 | 1984-10-09 | Suzuki Motor Co Ltd | 曲げ装置 |
DE3516923A1 (de) * | 1985-05-10 | 1986-11-13 | Rigobert Dipl.-Ing. 5000 Köln Schwarze | Rohrbiegemaschine |
-
1986
- 1986-05-14 DE DE19863616302 patent/DE3616302A1/de not_active Withdrawn
-
1987
- 1987-03-24 EP EP92113248A patent/EP0513864B1/fr not_active Expired - Lifetime
- 1987-03-24 DE DE3751861T patent/DE3751861D1/de not_active Expired - Fee Related
- 1987-03-24 DE DE87104356T patent/DE3787754D1/de not_active Expired - Fee Related
- 1987-03-24 EP EP87104356A patent/EP0245623B1/fr not_active Expired - Lifetime
- 1987-05-13 CA CA000537067A patent/CA1294196C/fr not_active Expired - Lifetime
-
1988
- 1988-09-19 US US07/246,453 patent/US4888971A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0513864B1 (fr) | 1996-07-24 |
DE3616302A1 (de) | 1987-11-19 |
EP0245623A2 (fr) | 1987-11-19 |
CA1294196C (fr) | 1992-01-14 |
EP0513864A3 (en) | 1993-01-13 |
DE3751861D1 (de) | 1996-08-29 |
US4888971A (en) | 1989-12-26 |
DE3787754D1 (de) | 1993-11-18 |
EP0245623A3 (en) | 1990-03-28 |
EP0513864A2 (fr) | 1992-11-19 |
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