EP2611555B1 - Biegerichtmaschine für ein langes werkstück und zu- und abfördervorrichtung hierfür sowie verfahren zum biegerichten von langen werkstücken - Google Patents

Biegerichtmaschine für ein langes werkstück und zu- und abfördervorrichtung hierfür sowie verfahren zum biegerichten von langen werkstücken Download PDF

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Publication number
EP2611555B1
EP2611555B1 EP11767618.9A EP11767618A EP2611555B1 EP 2611555 B1 EP2611555 B1 EP 2611555B1 EP 11767618 A EP11767618 A EP 11767618A EP 2611555 B1 EP2611555 B1 EP 2611555B1
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EP
European Patent Office
Prior art keywords
workpiece
gripping head
straightening
long
head
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.)
Active
Application number
EP11767618.9A
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German (de)
English (en)
French (fr)
Other versions
EP2611555A1 (de
Inventor
Manfred Mitze
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.)
MAE Maschinen und Apparatebau Goetzen GmbH
Original Assignee
MAE Maschinen und Apparatebau Goetzen GmbH
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.)
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Publication date
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Publication of EP2611555A1 publication Critical patent/EP2611555A1/de
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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
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/026—Combination of two or more feeding devices provided for in B21D43/04 - B21D43/18
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers

Definitions

  • the invention relates to a feeding and Abvantvoriques for a bending machine according to claim 1 and a method for bending of long workpieces according to claim 8.
  • the bending machine is provided for a long workpiece with two height and distance variable, a processing line defining detection devices.
  • the two detection devices support the long workpiece at least between the bending steps in different tool positions, in particular at the workpiece ends, in approximately horizontal position and allow a rotary drive about the workpiece axis to Bieachvor réelle in different rotational angular positions of the long workpiece enable.
  • the bending machine has at least two in the longitudinal direction of the workpiece between the detection devices at a distance from each other - viewed in the longitudinal direction of the workpiece - arranged jambs for supporting the workpiece against the directionally pressing on the workpiece straightening forces.
  • At least one straightening stamp is directed from the opposite side of the strait amirs between the straightening anvils against the workpiece and generates the straightening forces.
  • the straightening die and the directional anvils are along the workpiece along the processing line and possibly - but not necessary - also moved beyond.
  • a device for feeding and discharging the long workpiece for the bending levels allows its supply and removal in and out of the processing line.
  • Manually controlled straightening equipment for steel bars used in steelworks and processing plants are usually equipped with a motorized roller conveyor to move and straighten the bar for straightening through the straightening press.
  • the rods to be straightened usually have a round cross-section with a diameter between 80 and 450 mm and lengths between 2 m and 30 m. They are transported rolling on the so-called roller conveyors from a feed position to the straightening position and from there to a discharge position horizontally, ie also in the area of the processing line.
  • the bending machine acts in a horizontal direction on the bar steel resting on the roller conveyor during the entire procedure.
  • the circumferential angle of the workpiece is changed for example by so-called chain turners, so that the bending is possible not only in all longitudinal positions but also in all angular or circumferential positions of the workpiece.
  • Such bending machines are offered for example by the company Röcher GmbH & Co. KG in Netphen.
  • the bending lights of resting on a roller conveyor long workpieces has accuracy limits, inter alia, because the elastic recovery of the long workpiece after each bending step are hindered by frictional forces between the workpiece and the roller conveyor.
  • bending machines DE 101 44 135 C1
  • a detection device is used, which also allows a rotation of the workpiece about its longitudinal axis and which define a processing path in the straightening press.
  • the straightening press can be moved along the workpiece, which is supported only at its ends, into the respectively desired bending-jaw positions.
  • the detection devices are variable in distance along the machining path.
  • the workpiece to be machined can in principle be inserted by means of a crane device into its supports on the detection devices.
  • This labor-intensive loading operation of the bending machine can be simplified by the detection means having pivot means which permit to detect a workpiece adjacent to the processing line and parallel to it and in an approximately 180 degree pivoting step from the feed position transverse to its longitudinal direction into the processing line to pivot into the bending machine.
  • the detection means having pivot means which permit to detect a workpiece adjacent to the processing line and parallel to it and in an approximately 180 degree pivoting step from the feed position transverse to its longitudinal direction into the processing line to pivot into the bending machine.
  • the supply and discharge device for a bending machine with the features of claim 1 proposed. Accordingly, it is provided that in extension of the processing line on at least one head end thereof excludes a horizontal conveyor for the long workpiece in a straight extension of the machining section. At least one of the two detection devices has a gripping head. The gripping head permits frictional gripping of an end region of the long workpiece conveyed by the horizontal conveying means. It is further provided to draw in the non-directional workpiece by means of the gripping head and a drive means in the processing section.
  • the gripping head pushes the directed workpiece onto the same or an opposite horizontal conveyor in a straight extension of the processing line. Accordingly, at least one of the detection devices can be moved virtually along the entire processing path along with the long workpiece held by its gripping head along the processing path. It may be provided the machining of workpieces of different lengths, with lengths of 3 m to 40 m, in particular from 4 m to 30 m, may be provided. As with MAE's ASV-L Series Bending Machines, the two workpiece end detectors can be height-adjustable to lower the workpiece to the anvils of the bending machines in its various bending positions.
  • the directional anvils can instead be raised to support the long workpiece and remain lowered between the bending steps during the longitudinal process of the bending machine along the processing path.
  • the workpiece is detected by the two detection devices regardless of its length at the ends, supported and rotated in any desired rotational position about the longitudinal direction of the workpiece.
  • the invention is also a processing machine, and a method for continuous line production or processing of long workpieces according to claims 7 or 8, which are each of independent inventive importance.
  • a bending machine designated overall by 100 comprises a press frame 1 which can be moved horizontally along guide rails 4, 4A, 4B and has a vertically acting straightening head 1A and distance-adjustable vertically acting straightening jambs 1 B, 1C.
  • Two detection devices 2A, 2B are, like the press frame 1, longitudinally displaceable along the guide rails 4, 4B of a machine base 5.
  • the press frame 1 is arranged stationary, which is not shown in the figures.
  • the detection devices 2A and 2B define, together with the straightening head 1A and the directional protuberances 1B and 1C, a processing line WP which is shown in dot-dash lines and which coincides with the workpiece W clamped for machining ( Figure 3A-C ). Accordingly, the processing zone defined by the straightening head 1A and the directional aprons 1B, 1C is a part of the processing path WP. Due to the movability of the press frame 1 along the processing path WP and the parallel thereto guide rails 4, 4A, 4B, the bending zones along the processing line can shift accordingly.
  • the processing path WP is (by definition) wholly or partially by the provided on the detection means 2A and 2B and otherwise described in more detail below gripping heads 8A, 8B for supporting and for the rotary drive of the horizontally disposed workpiece W. Consequently, the processing path WP is at least long as the longest possible machinable in the bending machine workpiece W together with the length of the gripping heads.
  • EPA and EPB of the processing path WP extends at least one head end WPA and / or WPB the processing line WP depending on a horizontal conveyor 3, as above all FIGS. 1 to 4 can be seen, for. B. as roller table 3A, 3B.
  • a horizontal conveyor 3 can extend only in one of the two extensions EPA or EPB (not shown).
  • FIG. 2A / B shown basic position of the detection devices 2A, 2B are the gripping zones of the gripping heads 8A, 8B with its center, in particular with its center of rotation, approximately in the center of the workpiece W.
  • the gripping head Due to the height variability of the detection devices, which are realized for example by a height variability of the gripping heads can, the gripping head is adjusted or preset according to the thickness of the workpiece W in height and thus adapted the gripping head to the height of the workpiece center relative to the roller table 3A, 3B.
  • the horizontal conveyor 3 can be adjusted in height. How out FIG.
  • the workpiece W is moved beyond the end of the roller table 3A during advancement in the direction of the processing path WP, so that it protrudes with respect to the roller table.
  • the right-hand end of the workpiece is advanced by the gripping head 8A of the left-hand detection device 2A into the gripping zone of the gripping head 8B in the right-hand detection device 2B.
  • the gripping or clamping means of the second gripping head 8B are moved up against the end zone of the workpiece W which encompasses the right-hand workpiece end WB and braced with it.
  • the gripping head 8B together with the workpiece W is then moved to the right by means of the right-hand detection device 2B along the processing path WP.
  • a suitable drive is provided. Meanwhile the gripping means of the left detection device 2A remain open, so that the workpiece can be guided more or less freely through the left detection device 2A.
  • FIG. 3A It can be seen that the gripping head 8B is in frictional connection to the workpiece W and is already displaced along the guide rail 4B as far to the right as the workpiece length requires to be subsequently clamped at its left end zone (WA) by the gripping head 8A as well to be able to, as in FIG. 3B shown for straightening operations.
  • the gripping heads 8A / 8B are rotatable about the workpiece longitudinal axis, so that the workpiece can be measured and bent in the usual way.
  • the press frame 1 moves along the processing path WP, in order to reach all the required Bie sharepositionen along the workpiece.
  • the workpiece W can either in the in FIG. 2A / B are pushed back or advanced in the opposite direction on the opposite roller table 3B, as in FIGS. 4 shown.
  • the corresponding detection device moves the gripper head (in the embodiment the left) along the processing path WP with the gripper head 8A closed and the gripper head 8B open to the right.
  • the Richtambossen or the straightening head to dodge it may be necessary that the workpiece W, for example, along the vertical directional arrows 45, raised and / or lowered.
  • the anvils 1 B, 1 C and / or the straightening head 1 A can be moved in particular in the vertical direction so that a feeding in or out of the workpiece W or passing at least one gripping head is possible.
  • FIGS. 3A to 3C A plan view of a bending machine, in particular according to the FIGS. 3A to 3C , is out Figure 3D seen.
  • the contours of the Press frame 1 with its components such as the straightening head 1A and / or the Richtambossen 1 B, 1C to be able to dodge
  • FIG. 4A shows a situation of the feed of a long workpiece W including its length measurement.
  • the position of two or more roller blocks 30 located between the detectors 2A / B is adjusted along the guide rail 4B of the workpiece length.
  • the belonging to the roller blocks 30 horizontal support means 33 may, in principle, also be formed as support rollers, as they are also used for the roller table 3A / 3B.
  • FIG. 4C It can be seen how, with the barrier 20 open, the long workpiece W, supported by the horizontal support means 33, is displaced into the detection position of the gripping heads.
  • FIG. 5 can be seen as a gripping head a three-point support using rollers, as they are already used in the series ASV-L by MAE. But are preferred novel gripping heads as in FIGS. 6 and 7 are shown and described below.
  • FIGS. 6 and 7A-C show a gripping head 8 in the manner of a two-jaw chuck.
  • a base housing 11 is connected via vertically movable guide scales 12 to the FIGS. 1 to 4 known detection devices 2A, 2B attached and this height adjustable.
  • the base housing 11 has a large center recess 11 A for pushing through to be machined workpieces W.
  • a turntable 13 adjoins the base housing 11 and carries a rotary head 14 that is rotatable in its circumferential direction through 360 °.
  • the turntable 13 is suitable for at least partially passing the workpiece W insofar as it comprises a substantially closed, ring-like component on the circumference, but in the middle at least one opening or a variable passage.
  • the rotary head 14 accommodates two motor-driven spindles 15A, 15B in lateral and in the present and in this case preferred non-centric alignment.
  • Each of the two spindles is connected to one of two opposing jaws 18A, 18B, which are independently adjustable along guide rails 16A, 16B and with guide carriages 17A, 17B.
  • the guide rails 16A, 16B may be disposed on one of the sides of the workpiece W or (as shown) on different sides.
  • the jaws fix the workpiece W, which can drive through the open construction for loading and unloading in the axial direction without collision through the chuck. Gripping heads with features of the aforementioned type are of independent inventive importance.
  • FIGS. 7A-C can be seen, with one and the same jaw pair clamping round, square, rectangular but also other polygonal cross-sectional shapes of the workpiece possible. Without manual intervention, a large clamping range is covered, such as round and square bars in the size range 120 to 150 mm or rectangular to 120 x 600 mm.
  • the independent adjustability of upper and lower jaw balances the different jaw geometries 19A, 19B (prismatic top and bottom straight) and workpiece cross-sections. Jaws with features of the aforementioned type are of independent inventive importance.
  • gripping heads are shown with two different clamping jaws from each other; but it is also possible to use instead three or more different jaws without leaving the inventive concept.
  • the prismatic jaw is turned downwards for better centering. Particularly advantageous is the free rotation. Round rods can thus be measured in a rotating manner and form errors can be better filtered out.
  • the concentricity error vectors on round bars can be positioned exactly upwards, so that the straightening process runs optimally.
  • FIG. 8 An end-face and schematic view of a bending machine 100 with closed machine frame 120, the FIG. 8 be removed.
  • a guide rail 4B is arranged, along which the gripping heads 8A, 8B and / or the detection devices 2A, 2B are movable.
  • the gripping heads 8 A, 8 B along the directional arrows 40, 45 vertically, ie in height and / or horizontally, ie substantially perpendicular to the line of action of the straightening head 1 A within the frame 120 movable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Jigs For Machine Tools (AREA)
EP11767618.9A 2010-08-30 2011-08-30 Biegerichtmaschine für ein langes werkstück und zu- und abfördervorrichtung hierfür sowie verfahren zum biegerichten von langen werkstücken Active EP2611555B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010011976U DE202010011976U1 (de) 2010-08-30 2010-08-30 Biegerichtmaschine für ein langes Werkstück und Zu- und Abfördervorrichtung hierfür
PCT/EP2011/004359 WO2012028296A1 (de) 2010-08-30 2011-08-30 Biegerichtmaschine für ein langes werkstück und zu- und abfördervorrichtung hierfür sowie verfahren zum biegerichten von langen werkstücken

Publications (2)

Publication Number Publication Date
EP2611555A1 EP2611555A1 (de) 2013-07-10
EP2611555B1 true EP2611555B1 (de) 2016-12-28

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EP11767618.9A Active EP2611555B1 (de) 2010-08-30 2011-08-30 Biegerichtmaschine für ein langes werkstück und zu- und abfördervorrichtung hierfür sowie verfahren zum biegerichten von langen werkstücken

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US (1) US9440274B2 (zh)
EP (1) EP2611555B1 (zh)
CN (1) CN103228373B (zh)
DE (1) DE202010011976U1 (zh)
WO (1) WO2012028296A1 (zh)

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DE10144135C1 (de) 2001-09-07 2003-07-03 Mae Maschinen U Appbau Goetzen Biegerichtmaschine für ein langes Werkstück
JP4855802B2 (ja) * 2006-02-28 2012-01-18 独立行政法人理化学研究所 長尺形材加工装置及び方法
DE202006008001U1 (de) * 2006-05-17 2007-09-27 MAE Maschinen- und Apparatebau Götzen GmbH & Co. KG Biegerichtmaschine für längliche Werkstücke
CN201552210U (zh) * 2009-07-03 2010-08-18 成都莱克冶金机械设备制造有限公司 卧式压力矫直机

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EP2611555A1 (de) 2013-07-10
CN103228373A (zh) 2013-07-31
WO2012028296A1 (de) 2012-03-08
CN103228373B (zh) 2016-08-03
US20130160514A1 (en) 2013-06-27
DE202010011976U1 (de) 2011-12-01

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