• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to the processing of metals by pressure, to pipe bending production, and makes it possible to increase the accuracy of bending. The pipe to be subjected to bending is placed in a template and fastened. The template is made in the form of an elastic tape of adjustable curvature. Bending is carried out using bending tools hinged on the rods of the power cylinders placed along the entire length of the template. In the zones of the smallest radii of curvature of the pattern, bending is accomplished by moving the bending tools along the pattern from the drive. 10 3. p. F-crystals, 3 Il.
    公开号:SU1373301A3
    申请号:SU843709056
    申请日:1984-03-02
    公开日:1988-02-07
    发明作者:Мольц Теодор
    申请人:В.Эколд, А.Г. (Фирма)；
    IPC主号:
    专利说明:

    FROM
    00

    with so

    cm
    eleven
    The invention relates to devices for bending pipes.
    The aim of the invention is to improve the quality of bending,
    FIG. 1 shows a device for bending pipes, half right, top view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG.
    On the caliper (not shown), the base 1 is horizontally arranged at such a height that it is possible to conveniently stack the pipe to be subjected to bending. Auxiliary units are placed under the base in the caliper, in particular hydraulic pumps (not shown). A template 2 is placed on the base, against which the workpiece is bent under the action of perpendicularly directed to the longitudinal axis of the pipe forces. The template 2 is made in the form of an elastic tape of adjustable curvature and can be deformed within relatively wide limits. At the base there is a groove 3, into which the elements of the 4 supports are inserted and fixed by means of screws 5 with a cylindrical head. Parallel to the surface of the support are screws 6, passed through the through holes 7 of the support and threaded holes 8 made in the template 2. On both lateral sides of the elements 4 of the bearing on the screw 6 there are nuts 9. With the nuts 9 tightened, the template is rigidly connected to the base 1 through elements 4 support.
    In the zone of the largest radii of curvature (FIG. 1), in the holes 10 of the base, pivot pins 11 of the support pillars 12 are located, in which one hydraulic cylinder 13 is located. screws on the elastic tape 17. The return of the bending tool 16 to its original position occurs by means of stretching springs 18. Elastic tape 17, made of spring steel, prevents the tube from deviating between adjacent tools 16. In the zone of the smallest radii of curvature (on the right in Fig. 1) for fixing in the vertical direction, the device contains a support plate 19 with which piston rods 20









    two hydraulic power cylinders 21, transmitting force through the nuts 22 to the base plate 19. Springs
    23 compressors are used to return the plate to its original position. Outside the pipe, the support plate is adjacent to the elements 4, and with the help of spacers (not shown), the pipes can be fitted to different heights. The support plate also rests on template 2,
    In the zone of the smallest radii of curvature on both sides of the template, power cylinders 24 are mounted, which are fixed to holders 25, made in the form of pivoting levers 26 (upper and lower), which are mounted on bearings 27
    turning around them. The bearings 27 are mounted on axles fixedly mounted in the base 1. On the lower arms 26, elements 28 are guided, which cooperate with the groove 29 of the base 1. The levers 26 are pivoted from the power cylinders 30.
    The stroke of the piston 31 of the working cylinder 24 is transmitted by means of the hinge 32 to the pressure block 33, to which the bending tools 34 and .35 are hinged. Due to the fact that the holders 25 move along an arc of a circle, and the tube 36 must bend in a different curve from it, the stroke of the working cylinder 24 must be sufficient to compensate for this difference.
    The device can be converted to expand its range of applications.
    For example, the base 1 can be divided in the middle along with the unit # 1 located on it of the aggregate-sh, and both parts of the plate can be moved away from each other, and the slot created with the gap can be blocked by an additional plate.
    Then the template should be replaced.
    or added with an inserted intermediate element. Due to this, the device can quickly be converted for pipes of various lengths.
    In addition, the support plate 19 can be designed in such a way and placed so that when the pipe is removed it can move not only upwards, but towards the center from
    31
    bending, which simplifies the removal of the finished pipe.
    If the bending tool 16 is not screwed to the elastic band 17, but is mounted on it with the possibility of movement in the direction of the pipe, it is possible to laterally move individual bending tools. This is necessary, in particular, when a two-part base 1 is used.
    The cylinders 24 can only be mounted on the lower pivot arm 26, as a result of which the device will be open at the top in the area where the pipe is placed, which facilitates manipulation with it. However, it is necessary to compensate for significant bending moments in order to prevent the power cylinders from tilting, which leads to their premature wear. The drive for turning can be performed, for example, in the form of a hydraulic drive acting on the gear segment. In the event that such a construction unit is supplied not with one but with two hydraulic cylinders acting together on the pipe, the bending tools must be connected with an elastic band, as is the case in the zone of the largest bending radii.
    The device works as follows.
    To measure the shape of the template, one of the nuts 9 is released, and the other is tightened more depending on whether the template should have more or less curvature. The original basic form of the template is pre-installed.
    After laying the workpiece on the side of the bend pipe that is distant from the template, they are subjected to bending tools 16. They deform the pipe beyond the elastic limit towards the template, and measures are taken for Toi o to prevent crushing or other undesirable deformation of the pipe. First, power cylinders that are closest to the plane of symmetry of the device and are connected to the pressure source are power cylinders that tightly clamp the workpiece. Thereafter, the following power cylinders 13 are actuated and bending is performed with large radii


    0
    five
    0
    five
    0
    five
    0
    five
    0
    five
    yourself. A mandrel is then inserted from the free ends of the pipe, and then the power cylinders 1, 24 and 21 are introduced and alternately with the last cylinders a cylinder 30 is driven. Thus, the workpiece is deformed with decreasing radii of curvature, and all decreasing angular steps are predetermined by adjusting the stroke cylinder 30.
    After reaching the final position, the bending tools are retracted and the pipe can be bent away from the raised base plate 19.
    The first blanks are checked after they are completely bent by means of a template, and if necessary, an adjustment of the curvature of the template is made.
    All power cylinders can be powered from a single source of pressure medium or, depending on the power consumption, of appropriately designed pumps. Power is supplied through control valves, which, when simple installed, can be manually actuated or can be connected to the next control. To reduce the power of the pumps, the power to the cylinders 13 and 24 occurs in series.
    权利要求:
    Claims (11)
    [1]
    1. A device for bending pipes containing an adjustable curvature template fixed on the base by means of base elements associated with the base, two bending tools driven by power cylinders placed in a plane parallel to the base in the zones of the smallest curvature radii of the pattern from the opposite side elements and associated with the holders, characterized in that, in order to improve the quality of the products, it is equipped with additional bending tools with a drive in the form of power cylinders s arranged in a plane parallel to the base in the areas of largest radius of curvature as the template on the side opposite the mounting elements, and bending tools arranged in the zones of least radius
    the curvature of the template is mounted so that it can move along the template, the template being made in the form of an elastic band.
    [2]
    2. The device according to claim 1, 1, and 2 of t and the fact that each holder of the bending tool is made in the form of a pivoting lever, which is pivotally mounted on the base from the mounting elements and can be rotated in a plane parallel to the base,
    [3]
    3. The device according to paragraphs. 1 and 2, which is due to the fact that each pivot arm is pivotally mounted on the base with the possibility of rotation in a plane parallel to the base.
    [4]
    4. The device according to claim 1, characterized in that the installation elements are mounted with the possibility of adjusting movement by means of a threaded connection
    [5]
    5. Device on PP. 1 and 4, characterized in that the connection of the installation elements with the base is made in the form of a support rigidly mounted on the base.
    [6]
    6. The device according to claim 1, of which is - that the case
    five
    0
    five
    0
    power cylinders of additional bending tools are rigidly mounted on the base.
    [7]
    7. The device according to claim 1, characterized in that the additional bending tools are interconnected by means of an elastic band.
    [8]
    8. The device according to claim 1, characterized in that, in order to prevent the blanks from being removed during bending, it is provided with a support plate.
    [9]
    9. The device according to paragraphs. 1 and 8, characterized in that the pivoting arms and the support plate are driven by means of power cylinders.
    [10]
    10. Device on PP. 1-9, characterized in that the power cylinders of the base plate and the swivel arms are mounted with the possibility of alternate interaction
    with cylinders of the main and additional bending tools.
    [11]
    11. Device on PP. 1-10, in that the power cylinders of the main and additional bending tools are mounted with the possibility of their successive interaction. 9, 36
    Fig.Z
    13
    g
    类似技术:
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    SU1207390A3|1986-01-23|Method of cross bending of shaped or longitudinally corrugated sheet material and device for effecting same
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    US3295350A|1967-01-03|Continuous rail straightening press
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    SU647034A1|1979-02-15|Work-bending apparatus
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    US3483725A|1969-12-16|Flattener for tube bender
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    SU1687327A1|1991-10-30|Device foe manufacture of curved articles with bent-out ends
    RU2107569C1|1998-03-27|Gear to dress cylindrical articles
    US3934439A|1976-01-27|Draw-bending apparatus and method
    同族专利:
    公开号 | 公开日
    AT26547T|1987-05-15|
    CS250239B2|1987-04-16|
    JPS59193719A|1984-11-02|
    JPS6110212B2|1986-03-28|
    ES530615A0|1984-11-16|
    ES8501262A1|1984-11-16|
    EP0118739A3|1984-12-19|
    DE3307283A1|1984-09-06|
    EP0118739B1|1987-04-15|
    US4712406A|1987-12-15|
    EP0118739A2|1984-09-19|
    DE3463121D1|1987-05-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE77950C|F- A. PlAT, Paris, 10 rue St. Martin|Machine for bending metal rods, tubes, profile iron and the like|
    US736835A|1902-08-16|1903-08-18|Pressed Steel Car Co|Bending-machine.|
    US1349219A|1919-10-02|1920-08-10|George R Moore|Pipe-bender|
    US2044322A|1934-06-16|1936-06-16|Murray Corp|Method and means for bending tubing|
    US2018040A|1934-10-18|1935-10-22|Ternstedt Mfg Co|Metal bending machine|
    US2190423A|1937-12-06|1940-02-13|Motor Products Corp|Windshield frame bending machine|
    US2305850A|1940-05-27|1942-12-22|Briggs Mfg Co|Bending machine|
    US2399348A|1943-03-01|1946-04-30|Hobbs Frank|Bending mechanism|
    US2406182A|1943-09-11|1946-08-20|Charles S Foreman|Bending apparatus|
    US2533470A|1945-03-10|1950-12-12|Socrates H Kapelis|Bending apparatus|
    US2557346A|1948-06-12|1951-06-19|Lee B Green|Multiple-bend metal-bending machine|
    US2850071A|1954-10-18|1958-09-02|Daniel W Kraybill|Method and apparatus for stretchforming metal and controlling direction of pull|
    FR1128681A|1955-07-05|1957-01-09|Improvements made to the cutting of profiles, in particular metal|
    US3181331A|1962-06-27|1965-05-04|Ite Circuit Breaker Ltd|Article bending machine|
    GB1200178A|1966-11-29|1970-07-29|Harry Goble|Improvements relating to bending machines for bending metal bars|
    JPS5220023B2|1973-06-25|1977-06-01|
    JPS5625896B2|1977-01-24|1981-06-15|
    SU766706A1|1978-12-14|1980-09-30|Предприятие П/Я В-2775|Universal bending die|
    US4212188A|1979-01-18|1980-07-15|The Boeing Company|Apparatus for forming sheet metal|
    DE3000170C2|1980-01-04|1984-09-06|W. Eckold AG, Trimmis|A mandrel for a pipe to be bent|EP0177027A3|1984-10-04|1987-09-30|PINICAL YACHTBAU Gesellschaft mbH|Apparatus for stretch-bending elongate material|
    JPS6296127A|1985-10-23|1987-05-02|Mazda Motor Corp|Ground clearance adjuster for automobile|
    JPH0158304U|1987-10-09|1989-04-12|
    DE3915855C2|1989-05-16|1992-09-03|Walter E. 7760 Radolfzell De Spaeth|
    US5131254A|1991-01-29|1992-07-21|Whitefab, Inc|Apparatus for bending beams|
    GB2275219B|1993-02-20|1995-06-07|Btr Plc|Bending of elongate material|
    DE102008003067B4|2008-01-03|2013-05-29|Edag Gmbh & Co. Kgaa|Method and bending tool for bending a workpiece|
    CN102581085B|2012-02-28|2014-05-14|江苏奔宇车身制造有限公司|Integrated bending forming device for abnormally-shaped tube|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19833307283|DE3307283A1|1983-03-02|1983-03-02|PIPE BENDING SYSTEM|
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