EP3442724A1 - Verfahren und vorrichtung zum richten eines werkstücks - Google Patents
Verfahren und vorrichtung zum richten eines werkstücksInfo
- Publication number
- EP3442724A1 EP3442724A1 EP17719794.4A EP17719794A EP3442724A1 EP 3442724 A1 EP3442724 A1 EP 3442724A1 EP 17719794 A EP17719794 A EP 17719794A EP 3442724 A1 EP3442724 A1 EP 3442724A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- longitudinal axis
- straightening
- bent
- axis
- 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
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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
-
- 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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
-
- 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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/12—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by stretching with or without twisting
Definitions
- the invention relates to a method for straightening a workpiece with a longitudinal axis, wherein the workpiece is bent out of a starting position transversely to the longitudinal axis and bent back again and on a
- the invention is therefore based on the object, a method for straightening elongated workpieces, in particular of profiles, hollow sections and tubes, so designed that the required straightening with relatively simple means without risk of surface damage to be addressed
- the invention is based on the finding that during the bending of a
- Workpiece is applied by applying corresponding bending moments in the region of its two longitudinal ends of the workpiece over its entire length with an approximately constant bending moment load, so that it is not necessary to apply bending forces in the area between the two longitudinal ends by appropriate straightening tools, as in the prior art of Case is. It only has to be ensured that the workpiece is bent at least once in different directions from the starting position and bent back into the starting position, depending on the cross-sectional shape of the workpiece at least in
- the mutual deflection of the recording heads can be influenced on the bending line.
- Simple bending conditions arise in this context when the workpiece is bent and bent back symmetrically to a center plane perpendicular to the longitudinal axis, which usually meets the straightening requirements.
- the bending stress in continuously changing directions can be achieved via a corresponding drive of the recording heads without rotation of the workpiece about its longitudinal axis. But it is also possible in a simple manner, the workpiece during its rotation about the longitudinal axis using the recording heads in a plane and bend back again.
- Pivotable mounting of the recording heads about two preferably mutually perpendicular pivot axes the workpiece continuously in changing directions with a bending load can be applied to a corresponding pivot drive about these pivot axes, which ensures effective in all directions straightening.
- the bending of the workpiece requires a relatively mutually displaceable mounting of the recording heads, so that the shorter by the deflection, the mutual distance of the recording heads corresponding chord length of the bending line can be considered.
- the two recording heads for end-side recording of the workpiece can also only about a transverse to the coaxial alignment axis
- Swivel axes of the recording heads are parallel, because in this case can be expected with symmetrical loads with respect to a plane perpendicular to the longitudinal axis of the workpiece center plane.
- FIG. 1 shows a device according to the invention for straightening a workpiece with a pronounced longitudinal axis in a partly torn, schematic side view
- Fig. 3 shows a construction variant of a straightening device according to the invention
- Fig. 4 shows the device of FIG. 3 in a plan view.
- the device for straightening a workpiece 1, for example a pipe has according to FIGS. 1 and 2 a frame 2 with guides 3 for two slides 4, each carrying a turntable 5 for receiving a receiving head 6.
- the recording heads 6 are thus rotatably mounted on the carriage 4 about a to the guides 3 transverse, dash-dotted lines indicated pivot axis 7 and can by means of pivot cylinders 8 from a starting position
- Recording heads 6 is determined. This extending in the direction of the guides 3 coaxial alignment axis of the recording heads 6 is denoted by 9.
- the two receiving heads 6, which include a rotatably mounted workpiece holder 10, each associated with a drive 1 1 for the workpiece holder 10 so that the workpiece 1 can be driven in rotation about its longitudinal axis from its two ends.
- a spindle drive 12 is provided with two opposing spindle sections which are driven by a drive 13, so that the carriage 4 can be moved apart or the same time.
- a transverse conveyor 14 which has movable receptacles 16 for rails 15 for workpieces 1 along rails. The workpieces 1 to be straightened can thus be moved apart
- Carriage be introduced via the cross conveyor 14 in the device in order by a collapse of the carriage 4 of the receiving heads. 6
- the receptacles 16 of the transverse conveyor 14 can be lowered and withdrawn from the region of the straightening device.
- the receptacles 16 are formed as acted upon by a pressure medium actuating piston, which are provided in along the rails 15 movable carrier 17 for this purpose.
- the actuator for the driver 17 is not shown for clarity.
- Recording heads 6 recorded. After an extension of the driver 16 from the straightening the straightening process can be initiated by first the drive 1 1 is turned on for the rotation of the workpiece 1 about its longitudinal axis. On the rotating workpiece 1 can then be applied via the detected by the recording heads 6 longitudinal ends a bending moment, by an appropriate action on the pivot cylinder 8, so that the
- Recording heads 6 are pivoted about the pivot axes 7 of the coaxial alignment axis 9. At the same time, the two recording heads 6 on the Spindle drive 12 are pulled against each other in order to take into account the taking place during bending of the workpiece 1 shortening of the mutual recording head distance can. After bending out of the predetermined by the coaxial alignment axis 9 starting position 1 this is bent back into the starting position with continuous rotation of the workpiece, wherein the
- Receptacles 6 swung back over the swing cylinder 8 and at the same time the carriage 4 are moved apart again.
- the workpiece 1 can be removed from the straightening device via the transverse conveyor 14, after the workpiece 1 has been released by moving the receiving heads 6 apart.
- the two receiving heads 6 are not only about a pivot axis, but about two preferably mutually perpendicular, transverse to the alignment axis.
- the receiving heads 6 are mounted in the manner of a universal joint in a frame structure 20, the
- Bearing body 21 for the pivot axis 18 forming a shaft 22 which carries the recording head 6.
- On the shaft 22 are two diametrically opposed
- axle stub 23 attached to which an actuator in the form of swing cylinders 24 engages, so that the shaft 22 and thus the
- Recording head 6 can be rotated about the adjusting cylinder 24 about the pivot axis 18.
- the recording heads 6 are additionally rotatably mounted on the stub axles 23, which thus determine the pivot axis 19.
- two pivot cylinders 25 are provided, which are hinged on the one hand on the receiving head 6 and on the other hand on the shaft 22.
- the opposite to the shaft 22 rotatably held recording head 6 can therefore be additionally pivoted about the stub axle 23. This is the Conditions created for the workpiece to be straightened 1 continuously bend in all directions and back again, without having to drive the workpiece itself rotating.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Wire Processing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA50321/2016A AT518414B1 (de) | 2016-04-13 | 2016-04-13 | Verfahren zum Richten eines Werkstücks |
| PCT/AT2017/050007 WO2017177245A1 (de) | 2016-04-13 | 2017-04-10 | Verfahren und vorrichtung zum richten eines werkstücks |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3442724A1 true EP3442724A1 (de) | 2019-02-20 |
| EP3442724C0 EP3442724C0 (de) | 2024-08-14 |
| EP3442724B1 EP3442724B1 (de) | 2024-08-14 |
Family
ID=58638614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17719794.4A Active EP3442724B1 (de) | 2016-04-13 | 2017-04-10 | Verfahren und vorrichtung zum richten eines werkstücks |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US11072010B2 (de) |
| EP (1) | EP3442724B1 (de) |
| AT (1) | AT518414B1 (de) |
| ES (1) | ES2986384T3 (de) |
| HU (1) | HUE069087T2 (de) |
| PL (1) | PL3442724T3 (de) |
| WO (1) | WO2017177245A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112222234A (zh) * | 2020-11-16 | 2021-01-15 | 江苏天港箱柜有限公司 | 一种柜体型材整形装置 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018000022A1 (de) * | 2018-01-05 | 2019-07-11 | M A E Maschinen- Und Apparatebau Götzen Gmbh | Verfahren zum Richten von Rundlauf- oder Gradheitsfehlern an langgestreckten Werkstücken, sowie hierfür Messvorrichtung, Richtmaschine und Richtsystem |
| CN109759473B (zh) * | 2019-03-01 | 2020-04-10 | 玉田县聚兴源科技有限公司 | 一种配合铝型材出料的拉伸矫直装置 |
| CN112192226A (zh) * | 2020-09-28 | 2021-01-08 | 重庆九源机械有限公司 | 一种汽车横梁钻铣装置 |
| CN115870419B (zh) * | 2022-12-30 | 2025-06-24 | 湖北幸福铝材有限公司 | 一种铝型材矫直装置 |
| CN117245021B (zh) * | 2023-11-20 | 2024-01-23 | 自贡长盈精密技术有限公司 | 一种高精度可转角度铝材矫直装置 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE150424C (de) * | 1902-07-19 | 1904-04-25 | Sienknecht J | Maschine zum richten von wagenachsen |
| US2016463A (en) * | 1933-05-15 | 1935-10-08 | Sunnen Joseph | Bending tool |
| US2431173A (en) * | 1943-01-29 | 1947-11-18 | Sheridan Iron Works | Apparatus for stretch-shaping metal blanks to conform to convex curved dies |
| US3583191A (en) * | 1969-02-13 | 1971-06-08 | Cargill Detroit Corp | Compressive straightener |
| AT377456B (de) * | 1981-07-04 | 1985-03-25 | Ver Edelstahlwerke Ag | Richtmaschine fuer langgestreckte metallteile |
| US4483175A (en) * | 1982-12-17 | 1984-11-20 | Hansen Edward L | Thin wall tube straightening apparatus |
| US4700439A (en) * | 1984-07-17 | 1987-10-20 | Hines Industries, Inc. | Driveshaft fabricating apparatus |
| US4912957A (en) * | 1989-04-28 | 1990-04-03 | Dayton Rogers Manufacturing Company | Smart straightening press |
| DE4022951C2 (de) | 1990-07-19 | 1994-05-11 | Mae Maschinen U Apparatebau Go | Biegerichtmaschine für Profilabschnitte |
| JP4013269B2 (ja) * | 1996-11-21 | 2007-11-28 | 日本精工株式会社 | 長尺部材の変形矯正方法 |
| DE102008059108A1 (de) * | 2008-10-16 | 2010-04-22 | Sms Meer Gmbh | Verfahren und Vorrichtung zum Richten von Rohren auf einem Expander |
| DE202010011975U1 (de) * | 2010-08-30 | 2011-12-01 | MAE Maschinen- u. Apparatebau Götzen GmbH | Greifkopf für Erfassungseinrichtungen zum Manipulieren von langen Werkstücken, Zu- und Abführvorrichtung für lange Werkstücke in eine und aus einer Bearbeitungsmaschine |
-
2016
- 2016-04-13 AT ATA50321/2016A patent/AT518414B1/de active
-
2017
- 2017-04-10 EP EP17719794.4A patent/EP3442724B1/de active Active
- 2017-04-10 ES ES17719794T patent/ES2986384T3/es active Active
- 2017-04-10 WO PCT/AT2017/050007 patent/WO2017177245A1/de not_active Ceased
- 2017-04-10 US US16/092,339 patent/US11072010B2/en active Active
- 2017-04-10 HU HUE17719794A patent/HUE069087T2/hu unknown
- 2017-04-10 PL PL17719794.4T patent/PL3442724T3/pl unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112222234A (zh) * | 2020-11-16 | 2021-01-15 | 江苏天港箱柜有限公司 | 一种柜体型材整形装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| AT518414A4 (de) | 2017-10-15 |
| WO2017177245A1 (de) | 2017-10-19 |
| US11072010B2 (en) | 2021-07-27 |
| EP3442724C0 (de) | 2024-08-14 |
| ES2986384T3 (es) | 2024-11-11 |
| US20190160506A1 (en) | 2019-05-30 |
| PL3442724T3 (pl) | 2024-12-02 |
| EP3442724B1 (de) | 2024-08-14 |
| HUE069087T2 (hu) | 2025-02-28 |
| AT518414B1 (de) | 2017-10-15 |
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