EP1392457A1 - Verfahren zum ablängen von strangpressprofilen - Google Patents
Verfahren zum ablängen von strangpressprofilenInfo
- Publication number
- EP1392457A1 EP1392457A1 EP03714774A EP03714774A EP1392457A1 EP 1392457 A1 EP1392457 A1 EP 1392457A1 EP 03714774 A EP03714774 A EP 03714774A EP 03714774 A EP03714774 A EP 03714774A EP 1392457 A1 EP1392457 A1 EP 1392457A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extruded profile
- saw
- cut
- profile
- length
- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
- B21C23/12—Extruding bent tubes or rods
Definitions
- the present invention relates to a method for cutting an extrusion profile to length in the press flow of an extrusion device. More specifically, it relates to a method for cutting an extruded profile to length, which is bent after the press exit simultaneously with or immediately after the shaping extrusion process by a force acting transversely to the extrusion direction on the extruded profile, a force component being used as a tensile or compressive force when the mold is given! the extrusion process acts on the cross-sectional area of the resulting profile walls.
- Profiled workpieces are often manufactured industrially on the basis of profiles formed by extrusion of semi-finished products. Depending on the material used for the semi-finished product, the extrusion is carried out at a temperature which guarantees the plastic deformability. For example, aluminum or magnesium alloys are generally pressed at temperatures from 250 ° C to 600 ° C. For further processing of the extruded profiles, these must be cut to length according to the respective dimensions of the profiled workpieces to be produced. Mechanical cutting tools such as saws or scissors are mainly used for cutting to length.
- profiles in particular are subjected to at least one further process step for calibrating the final contour of the profiles, for which purpose conventional straightening devices are generally used. If the release agent causes contour inaccuracies during the cutting process, these are eliminated during straightening.
- Typical lengths of profile sections cut to length lie in the range of 30 to 50 meters in the case of straight profiles in order to keep the material losses of approximately 1 to 2 meters that occur with straightening relatively low due to the clamping of the profile section.
- the object of the present invention is to show a method of the type mentioned at the outset, with which the still warm extruded profile can be cut to length in the press flow without fear of deformation of the profile.
- a method for cutting a hollow extruded profile in the press flow is shown, which method is characterized in that the bent extruded profile is cut to length in the press flow by the mechanical action of a saw, the force exerted on the extruded profile by cutting to a force by the extruded profile adjacent support device is compensated in such a way that deformation of the bent extruded profile is avoided, the extruded profile consisting of an aluminum alloy or a magnesium alloy and, when cut to length, has a temperature in the range from 200 ° C. to 600 ° C., preferably 500 ° C. to 600 ° C. ,
- an extruded profile is considered here, which is bent after the press exit at the same time as or immediately after the shaping extrusion process by a force acting transversely to the extrusion direction on the extruded profile, a force component as a tensile or compressive force during the shaping extrusion process on the cross-sectional area of the resulting Profile walls.
- a force acting transversely to the extrusion direction on the extruded profile a force component as a tensile or compressive force during the shaping extrusion process on the cross-sectional area of the resulting Profile walls.
- the saw is advantageously guided on a guide tool, wherein the saw can be supported on the guide tool or, alternatively, the guide tool on the saw.
- the saw is advantageously dimensioned such that the entire cross section of the extruded profile is covered by its depth of cut. This ensures that the extruded profile can be cut in a time-saving manner with a single feed of the cutting tool.
- the extrusion profile can either be cut while the extrusion profile is at a standstill, or the saw can be moved with the extrusion profile moving in the press flow during the cutting process.
- the saw is provided with a device for compensating for play in the pressing direction.
- a device for compensating for play in the pressing direction This enables the speed of the press flow to be advantageously maintained undiminished, even if relatively long separation times are to be expected, especially if relatively thick profiles are present.
- This compensation option avoids undesirable, possibly even damaging influences on the saw and / or extruded profile through which the saw during of the cutting process in a transverse direction is a stressful movement of the extruded profile in the press flow.
- the feed rate of the saw is advantageously adapted to different profile cross sections, as a result of which increased wear due to excessive stress on the material of the saw can be prevented. As a result, longer tool life can be achieved, which further improves the economy of the process.
- a conventional separating aid is continuously applied to the saw blade during the cutting process, which prevents the warm chips from sticking to the teeth and the teeth are clogged by the chips.
- the cutting aid is applied to the saw blade, for example by atomization. This can also serve as a coolant for the saw blade.
- the guide tool for guiding the separating tool is a robot.
- the robot is provided with a robot arm that can be controlled according to the movement and / or curvature of the extruded profile.
- the robot arm can position the saw in a selectable position on the extruded profile.
- Such positioning advantageously takes place as close as possible to the extruded profile, so that the separation process takes place as quickly as possible due to short distances to be covered, and comparatively high extrusion speeds are possible.
- the saw is advantageously positioned by means of the robot arm by controlling a higher-level control Central, which has the data required for this in relation to the exact course of the stretched, bent or curved extruded profile. In this way, the saw can, of course, be brought to practically arbitrary positions near the extruded profile within the framework of the movement possibilities given to the robot arm, in order to cut through the extruded profile at the location there.
- the control of the robot arm by a higher-level control center also enables the robot arm to be guided during the cutting to such an extent that there is practically no relative movement to the extruded profile moving in the press flow.
- the saw is advanced with respect to a guide device which is moved along with the robot arm and in particular permits one-dimensional movement. Because of this possibility of movement, the saw can therefore be guided through the extruded profile without a corresponding movement of the robot arm.
- This significantly simplifies the computational effort to control the robot arm if the robot arm is to be moved with the extruded profile during the cutting process and a combined movement of the robot arm is required to move the robot arm and to move the saw during the cutting process.
- the extrusion speed during cutting can be in the range of 10 to 30 m / min. This is preferably between 20 and 30 m / min and is particularly preferably approximately 25 m / min.
- the extrusion speed is usually between 1 and 5 m / min, and is particularly preferably about 2 to 3 m / min.
- the separation time for profiles made of aluminum or magnesium alloys is preferably less than approximately 4 seconds, and is particularly preferably approximately 2 seconds.
- FIG. 1 It shows:
- Fig. 1 is a schematic view of an apparatus for performing the method according to the invention.
- Figure 1 is to illustrate the inventive method.
- the representation takes place in a Cartesian coordinate system, whose XY plane is parallel to the paper plane, and whose Z axis is perpendicular to the XY plane.
- a robot arm 3 is shown, which at its end guides a cutting tool designed as a saw, which is positioned near an extruded profile 5.
- the extruded profile 5 is shown in cross section, i. H. it moves in the press flow in the Z direction.
- the hollow extruded profile in the present case consists of an aluminum alloy. Nevertheless, it could instead consist of a magnesium alloy.
- the mechanical separation of the extruded profile 5 takes place by means of the saw blade 6 arranged in the XY plane, which is set in rotation by the main drive 7.
- the saw blade 6 is guided in the Y direction through the extruded profile 5, the saw being moved along a feed axis 1 in the direction of the Y axis.
- the hollow extruded profile has a temperature in the range from 200 ° C. to 600 ° C., preferably 500 ° C. to 600 ° C.
- a counter-holder 4 in the form of a ⁇ in the XZ plane located flat plate for its support on.
- the counterholder 4 absorbs the mechanical forces exerted by the saw on the extruded profile 5 in the Y direction and thus prevents deformation and a change in the contour of the extruded profile 5.
- the saw is also equipped with a device for axial play compensation in the form of a compensating bearing 2 equipped to compensate for the movement of the extruded profile 5 in the Z direction during the cutting process.
- the robot arm 3 can be moved with the extruded profile 5 in the Z direction while maintaining its relative position to the extruded profile 5.
- the control of the robot arm of the robot arm is carried out by a control center (not shown) which knows the exact course of the extruded profile.
- the movement of the robot arm 3 in accordance with the moving extruded profile and the movement of the saw through the extruded profile 5 during the cutting process are decoupled in the Y direction due to the existing feed axis 1.
- Carrying the robot arm 3 with the moving extruded profile in the press flow is particularly important for thick profiles that require a comparatively long cutting time. and / or rapid extrusion speeds. Often, however, the axial play compensation possibility created by the compensation bearing 2 of the saw blade 6 will suffice to avoid damage to the saw blade 6 and / or the extruded profile 5 during the cutting process due to different directions of movement of the cutting tool and the extruded profile.
- the method according to the invention can ensure that desired partial lengths of extruded profiles can be cut off quickly and exactly in the press flow without having to accept an adverse effect on the contour.
- the significantly shorter total production time of the profiled workpieces compared to conventional cutting processes enables higher quantities per unit of time, which has a favorable effect on the economy of the process.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Sawing (AREA)
- Fats And Perfumes (AREA)
- Meat, Egg Or Seafood Products (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10209481A DE10209481C1 (de) | 2002-03-05 | 2002-03-05 | Verfahren zum Ablängen eines Strangpressprofils |
DE10209481 | 2002-03-05 | ||
PCT/EP2003/002231 WO2003074205A1 (de) | 2002-03-05 | 2003-03-05 | Verfahren zum ablängen von strangpressprofilen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1392457A1 true EP1392457A1 (de) | 2004-03-03 |
EP1392457B1 EP1392457B1 (de) | 2005-06-08 |
Family
ID=27770965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03714774A Expired - Lifetime EP1392457B1 (de) | 2002-03-05 | 2003-03-05 | Verfahren zum ablängen von strangpressprofilen |
Country Status (11)
Country | Link |
---|---|
US (1) | US6862911B2 (de) |
EP (1) | EP1392457B1 (de) |
JP (1) | JP2005518283A (de) |
CN (1) | CN1253263C (de) |
AT (1) | ATE297269T1 (de) |
AU (1) | AU2003219014A1 (de) |
CA (1) | CA2462533A1 (de) |
DE (2) | DE10209481C1 (de) |
DK (1) | DK1392457T3 (de) |
NO (1) | NO20034933D0 (de) |
WO (1) | WO2003074205A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10340772A1 (de) * | 2003-09-02 | 2005-03-24 | Sms Eumuco Gmbh | Verfahren und Vorrichtung zum Strangpressen von gekrümmten Strangpressprofilen |
CN100391687C (zh) * | 2005-08-01 | 2008-06-04 | 沈阳华铁异型材有限公司 | 机油冷却器气室腔的生产工艺及产品 |
DE102013008635B3 (de) * | 2013-05-18 | 2014-06-26 | Ulrich Bruhnke | Verfahren und Anlage zur Herstellung von Blechtafeln |
CN106914505B (zh) * | 2017-03-03 | 2019-03-01 | 东莞市闻誉实业有限公司 | 铝合金挤压机构 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2421425C2 (de) * | 1974-05-03 | 1982-03-25 | Gebr. Happich Gmbh, 5600 Wuppertal | Einrichtung zum Aufteilen von aus einer Strangpreß- oder Profilstrangrollmaschine auslaufenden Werkstücken in gleich oder unterschiedlich lange Abschnitte |
IT1171937B (it) * | 1983-06-21 | 1987-06-10 | Sica Spa | Apparecchiatura e procedimento di controllo delle fasi di lavoro di un dispositivo di taglio mobile su tubi estrusi in continuo |
DE3630601A1 (de) * | 1986-09-09 | 1988-03-17 | Erbsloeh Julius & August | Schereinrichtung zum abtrennen von metallprofilen, insbesondere von auf einem pressenauslauftisch abgelegten strangpressprofilen |
NL9200138A (nl) * | 1992-01-24 | 1993-08-16 | Reynolds Aluminium Bv | Extrusiewerkwijze en extrusieinrichting. |
JP3022036B2 (ja) * | 1992-02-24 | 2000-03-15 | テイエチケー株式会社 | レールの製造方法及び製造装置 |
JP2735171B2 (ja) * | 1993-12-27 | 1998-04-02 | 本田技研工業株式会社 | 軽合金の押出し加工方法 |
DE4428827A1 (de) * | 1994-08-17 | 1996-03-14 | Kleiner Matthias Prof Dr Ing H | Verfahren zur Herstellung von gekrümmten Werkstücken durch eine Kombination von Strangpressen und Biegen |
EP0759331B1 (de) * | 1995-08-12 | 1997-04-09 | SMS HASENCLEVER GmbH | Vorrichtung zum schrittweisen Quertransport von Profilen zwischen dem Auslauf einer Metallstrangpresse und einer Streckrichtmaschine |
DE19637175C2 (de) * | 1995-09-13 | 2001-12-06 | Aisin Seiki | Vorrichtung zum Schneiden eines gekrümmten, kontinuierlich zugeführten Werkstücks |
JP3548971B2 (ja) * | 1995-11-16 | 2004-08-04 | 日本軽金属株式会社 | 押出し形材の曲げ加工方法 |
DE19913402A1 (de) * | 1999-03-25 | 2000-09-28 | Km Europa Metal Ag | Vorrichtung zum Ablängen von Langmaterial |
FR2837409B1 (fr) * | 2002-03-20 | 2004-06-04 | Airbus France | Procede de formage d'un secteur de levre d'entree d'air, dispositif pour sa mise en oeuvre et secteur ainsi obtenu |
-
2002
- 2002-03-05 DE DE10209481A patent/DE10209481C1/de not_active Expired - Fee Related
-
2003
- 2003-03-05 JP JP2003572705A patent/JP2005518283A/ja active Pending
- 2003-03-05 CN CNB038003597A patent/CN1253263C/zh not_active Expired - Fee Related
- 2003-03-05 EP EP03714774A patent/EP1392457B1/de not_active Expired - Lifetime
- 2003-03-05 DK DK03714774T patent/DK1392457T3/da active
- 2003-03-05 AT AT03714774T patent/ATE297269T1/de not_active IP Right Cessation
- 2003-03-05 DE DE50300620T patent/DE50300620D1/de not_active Expired - Fee Related
- 2003-03-05 WO PCT/EP2003/002231 patent/WO2003074205A1/de active IP Right Grant
- 2003-03-05 CA CA002462533A patent/CA2462533A1/en not_active Abandoned
- 2003-03-05 AU AU2003219014A patent/AU2003219014A1/en not_active Abandoned
- 2003-11-05 NO NO20034933A patent/NO20034933D0/no not_active Application Discontinuation
- 2003-12-15 US US10/736,240 patent/US6862911B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO03074205A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2003219014A1 (en) | 2003-09-16 |
DE50300620D1 (de) | 2005-07-14 |
DK1392457T3 (da) | 2005-10-10 |
JP2005518283A (ja) | 2005-06-23 |
DE10209481C1 (de) | 2003-12-04 |
EP1392457B1 (de) | 2005-06-08 |
US6862911B2 (en) | 2005-03-08 |
NO20034933L (no) | 2003-11-05 |
NO20034933D0 (no) | 2003-11-05 |
ATE297269T1 (de) | 2005-06-15 |
US20040163438A1 (en) | 2004-08-26 |
CN1514750A (zh) | 2004-07-21 |
CA2462533A1 (en) | 2003-09-12 |
WO2003074205A1 (de) | 2003-09-12 |
CN1253263C (zh) | 2006-04-26 |
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