• 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:
    A motor vehicle light metal tire manufacturing device is made available from a rotary stretch forming device, with a main spindle (1) with a clamping device (15) for a tire blank. (2) in the form of a container and at least one rotating outer pressing roller (4; 5) that can be placed radially from the outside to the inside on it and movable in parallel with respect to the spindle axis (3), to produce a contour exterior of the light metal rim (11), which does not require solid internal tools and therefore significantly reduces the manufacturing effort and clearly improves the effectiveness of the production of rims, which is achieved because the forming device by rotary stretching it has at least two inner pinch rollers (6; 7) for the production of a hollow cylinder-type inner contour of the light metal rim (11), which are They are arranged in the area of the inner sides of the rim blank (2) arranged on the side opposite the outer pinch rollers (4; 5) and that they can move in parallel with respect to the spindle axis (3), housed so that they can rotatably and radially approach from the inside to the outside towards the rim blank (2). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2729706A1
    申请号:ES201830990
    申请日:2018-10-15
    公开日:2019-11-05
    发明作者:Holger Klatte；Thomas Beyer
    申请人:SSB MASCHB GmbH；
    IPC主号:
    专利说明:

    [0001]
    [0002] Light metal motor vehicle tire manufacturing device
    [0003]
    [0004] The invention relates to a device for manufacturing light metal rims of a motor vehicle from a rotary drawing forming device for pressure lamination, with a main spindle with a clamping device for a blank part of a tire in container shape and at least one rotating outer clamping roller that can be placed radially from the outside inwards on it and movable in parallel with respect to the spindle axis, to produce an outer contour of the light metal rim.
    [0005] A rotational forging device is known, document EP 0652061 A1, which also has an external pressure roller, also an internal pressure tool, which does not, however, directly machine a rim blank, but serves as a device of opposite clamping of a hollow tool inside.
    [0006]
    [0007] It is disadvantageous in this previously known rotational forging device that the tool, as well as in the case of conventional solid forged rotation forging devices, has to have a preformed interior shape of a wheel disk of a light metal rim , so that a separate tool must be kept available for each variant of a light metal rim. This is very labor intensive and cost intensive and requires the provision of large storage capacities for different tools.
    [0008]
    [0009] In addition, the overall contour of the tool must be manufactured in such a way that the fabricated lightweight metal tire can be unmold from the tool, which significantly limits the freedom of configuration of a tire manufacturer.
    [0010]
    [0011] It is also known a projection stretching press machine for the production of hollow bodies with rotational symmetry, document DE 1 900 354 A, by means of which they can be manufactured from round and low-angle reduced-thickness plate discs with with respect to a spindle axis of the device, deformed hollow bodies with conical or conical base. For the fabrication of light metal rims with a hollow cylinder type shape this metal pressing procedure is however not suitable.
    [0012]
    [0013] It is the task of the invention to make available a device for manufacturing light metal rims of a motor vehicle, which does not require solid interior tools and reduces Due to this, the manufacturing effort is noticeable and the effectiveness of tire production is clearly improved.
    [0014]
    [0015] The solution to this task is produced in conjunction with the features of the preamble according to the invention because the rotary stretch forming device has at least two inner pressing rollers for the generation of a hollow cylinder-type interior contour of the light metal rim , which are arranged in the area of the inner sides of the rim blank disposed on the side opposite to the at least two outer pressing rollers and which can move in parallel with respect to the spindle axis, housed so that they can approximate rotatably and radially from the inside out towards the tire blank.
    [0016]
    [0017] This rotational stretch forming device according to the invention makes it possible to manufacture a light metal rim completely without the presence of a predetermined solid tool, since the inner shape of the wheel disc can be shaped by the inner pressing rollers, which can move from the outside towards the inside against the inner wall of a blank part of the rim and move in a parallel direction with respect to the spindle axis, so that inner shapes of wheel discs can also be manufactured, from which it could not Having formed a conventional tool.
    [0018]
    [0019] This pressure lamination leads to complete deformation of the light metal unlike known metal pressures, so that a high thin-walled rim profile can be produced from a short thick-walled container of a rim blank. .
    [0020]
    [0021] Another essential advantage of the rotational stretch forming device according to the invention is that the requirement for a retrofitting of tools is also completely suppressed, since such tools no longer exist, so that they also do not have to be stored or kept available, because to which an essential cost factor in the manufacture of light metal wheels is completely eliminated.
    [0022]
    [0023] Other advantageous configurations of the object of the invention result with and in combination from the subsequent secondary claims.
    [0024]
    [0025] In correspondence with a preferred embodiment of the invention, the inner pressing roller is provided with an axis of rotation arranged at an angle against the spindle axis, which in a further variant can also be housed by the length of the travel parallel to the spindle axis in a way that can be modified in its angle of attack, so that it can also machine, for example, interior areas of the wheel disc, due to which, in general, an optimum deformation of the tire blank can occur resulting in a light metal rim.
    [0026]
    [0027] A very particularly preferred embodiment of the manufacturing device according to the invention is equipped with inner pressing rollers, which are arranged on the side opposite to the main spindle of the rotary drawing forming device, in a common feed unit, in which they are housed transversely independently of each other radially with respect to the spindle axis, the advance unit itself being configured together with the pressing rollers longitudinally movable axially in the direction of the spindle axis. Such an arrangement is extremely stable and durable, since the opposing radial deformation forces rest on the feed unit and in this case cancel each other out.
    [0028]
    [0029] According to another advantageous embodiment of the invention there is arranged a pair formed by an outer clamping roller and an inner clamping roller of opposite operation on the inside, in a common stirrup component, which is configured in a mobile way in parallel with respect to the spindle shaft, so that the forces directed inwards and outwards of the inner clamping roller and the outer clamping roller cancel each other out and the system remains free of outward forces.
    [0030]
    [0031] It is also advantageous to have a configuration of the object of the invention that has several external pressing rollers and one or several internal pressing rollers, which in particular in the presence of two or three external pressing rollers has a number of internal pressing rollers, which corresponds with the amount of outer pressing rollers, the inner and outer pressing rollers being arranged respectively opposite each other, so as to also achieve here a wide or even complete absence of forces.
    [0032]
    [0033] In a particularly preferred configuration of the invention, two pairs of outer and inner pressing rollers are disposed facing each other in the 180 ° range around the spindle axis, so that the forces applied laterally from the outside cancel each other out or at the Less are partially compensated. A third pair of an outer and an inner pressing roller can be arranged here additionally in the 90 ° range around the spindle axis displaced between the first pairs, in order to continue increasing the deformation performance required.
    [0034]
    [0035] Another advantageous version of the object of the invention has, on the contrary, three pairs of outer and inner pressing rollers, which are arranged displaced from each other in the range of 120 ° around the spindle axis, in order to mutually annul the laterally introduced forces. or compensate them as much as possible.
    [0036]
    [0037] The rotational stretch forming device preferably has a main spindle with a clamping device, on which the rear exterior front side of a wheel disk of a light metal rim is held, preferably presenting a device for inner fastening, with which a tire blank is held from its rear inner front side of the wheel disc towards the main spindle through openings in the tire blank pressed on it. The use of a separate clamp male with axial clamping force in the direction of the clamping device is also advantageously possible in this case.
    [0038]
    [0039] An embodiment of the invention is very particularly preferred, in which there are arranged in the main spindle and / or in the pressing roller (s) and / or internally and / or externally in a contact-free arrangement with respect to the cylinder-like surface of the wheel disk of the blank part of the rim or of the light metal rim, heating shoes, which are equipped with induction heaters, so that the light metal to be deformed can be maintained at a temperature required for it, so which fits this contact-free heating system excellently.
    [0040]
    [0041] An exemplary embodiment of the invention will be described in greater detail in the following by means of an outline of principle. Sample:
    [0042]
    [0043] Fig. 1 a clamping device for a rotational stretching forming device with a common feed unit of the inner pressing rollers and with a blank part of a clamped rim or a clamped light metal rim;
    [0044]
    [0045] Fig. 2 a clamping device for a rotational stretching forming device with a common stirrup element of an outer and an inner clamping roller and with a blank part of a clamped rim or clamped rim of a light metal.
    [0046]
    [0047] The rotational stretch forming device has a main spindle 1 with a clamping device 15, on which a blank rim 2 is held. shaped like a container and transformed there giving rise to a light metal rim 11, for which the main spindle 1 of the rotary drawing forming device is rotated around the spindle axis 3 and from the outside the pressing rollers are pressed exterior 4; 5 and from the inside the inner pressing rollers 6; 7 against the blank of the rim 2 and are moved in such a longitudinal direction of the spindle shaft 3, that a light metal rim 11 is produced with inner and outer contours essentially hollow cylinder type of the desired wheel disc.
    [0048]
    [0049] 12 'turning axes; 13 ’of the outer pressing rollers 4; 5 are normally aligned in parallel with respect to the spindle axis 3, the rotation axes 12 being arranged on the contrary; 13 of the inner pressing rollers 5; 6 due to an angle with respect to the spindle axis 3, this angle can be configured in a modifiable manner, so that a partial deformation can still occur, for example, in the area of the wheel disk, and the rollers may instead be adopted inner presses 6; 7 in the end zone of the light metal rim 11 opposite the wheel disk, also a parallel or even more pivoted position with respect to the spindle axis 3.
    [0050]
    [0051] The inner pressing rollers 4; 5 of a first version of the manufacturing device, as shown in Fig. 1, are arranged in a common feed unit 19, in which they are housed transversely independently of each other radially with respect to the spindle axis (3), the advancing unit 19 being axially movable axially in the direction of the spindle axis 3.
    [0052] A pair of an outer pressing roller 4; 5 and an inner pressing roller 6; 7 of opposite operation from the inside is arranged in a second version of the manufacturing device, as shown in Fig. 2, in a common stirrup element 14, which is configured in a movable manner in parallel with respect to the spindle axis 3.
    [0053]
    [0054] The manufacturing device also has a clamping device 15, with which a rim blank 2 is held from its rear inner front side 10 towards the main spindle 1 through openings in the blank of 2 tire pressed on it.
    [0055]
    [0056] In addition, the main spindle 1 and / or the pressing rollers 4; 5; 6; 7 and / or internally and / or externally in a contact-free arrangement with respect to the cylinder-like surface of the rim blank 2 or the light metal rim 11 is or are equipped with heating shoes 16; 17; 18 of an induction heating.
    权利要求:
    Claims (13)
    [1]
    1. Device for manufacturing light metal rims of a motor vehicle from a rotational stretch forming device, with a main spindle (1) with a clamping device (15) for a rim blank (2) in the form of a container and at least one rotating external pressing roller (4; 5) that can be placed radially from the outside inwards on it and movable in parallel with respect to the spindle axis (3), to produce an external contour of the light metal rim (11), characterized in that the rotational stretch forming device has at least two inner pressing rollers (6; 7) for the production of a hollow cylinder inner contour of the light metal rim (11), which are arranged in the area of the inner sides of the rim blank (2) arranged on the opposite side of the at least two outer pressing rollers (4; 5) and which can move in parallel with n with respect to the spindle axis (3), housed so that they can be rotatably and radially approached from the inside outwards towards the rim blank (2).
    [2]
    2. Manufacturing device according to claim 1, characterized in that the inner pressing rollers (6; 7) respectively have rotating axes (12; 13) arranged or that can be arranged at an angle with respect to the spindle axis (3).
    [3]
    3. Manufacturing device according to claim 2, characterized in that the rotation shafts (12; 13) of the inner pressing rollers (6; 7) are housed by the length of the parallel travel path relative to the spindle axis (3 ), modifiable in the angle of attack (8).
    [4]
    4. Manufacturing device according to one of the preceding claims, characterized in that the inner pressing rollers (4; 5) are arranged in a common feed unit (19), in which they are housed transversely movable independently of each other. radially with respect to the spindle axis (3) and that the feed unit (19) together with the pressing rollers (4; 5) is axially movable axially in the direction of the spindle axis (3).
    [5]
    5. Manufacturing device according to one of the preceding claims, characterized in that there is a pair formed by an outer clamping roller (4; 5) and an inner clamping roller (6; 7) of opposite operation on the inside, in a component of common stirrup (14), which is configured in a mobile way in parallel with respect to the spindle axis (3).
    [6]
    6. Manufacturing device according to one of the preceding claims, characterized in that it has more than two outer pressing rollers (4; 5) and more than two inner pressing rollers (6; 7).
    [7]
    7. Manufacturing device according to one of the preceding claims, characterized in that it has two or three outer pressing rollers (4; 5) and in correspondence with the amount of the outer pressing rollers (4; 5), two or three inner pressing rollers (6; 7), which are arranged respectively opposite to each other.
    [8]
    A manufacturing device according to one of the preceding claims, characterized in that two pairs of outer pressing rollers (4; 5) and inner pressing rollers (6; 7) are arranged relative to each other in the range of around 180 °. of the spindle shaft (3).
    [9]
    9. Manufacturing device according to claim 8, characterized in that a third pair of an outer clamping roller (4; 5) and an inner clamping roller (6; 7), arranged between the first two pairs in the range of 90 ° around the spindle axis (3).
    [10]
    10. Manufacturing device according to claim 6, characterized in that three pairs of outer pressing rollers (4; 5) and inner pressing rollers (6; 7) are arranged relative to each other in the range of 120 ° around the axis spindle (3).
    [11]
    11. Manufacturing device according to one of the preceding claims, characterized in that the main spindle (1) has a clamping device (15), on which the rear exterior front side (9) of a light metal rim is held attached (eleven).
    [12]
    12. Manufacturing device according to claim 11, characterized in that it has a clamping device (15) with which a rim blank (2) is attached from its rear inner front side (10) towards the main spindle (1) through openings in the tire blank (2) pressed on it.
    [13]
    13. Manufacturing device according to one of the preceding claims, characterized in that the main spindle (1) and / or the pressing rollers (4; 5; 6; 7) and / or internally and / or externally in a contact-free arrangement with respect to the cylinder type surface of the rim blank (2) or the light metal rim (11) this or these are or are equipped with heating shoes (16; 17; 18) of an induction heating .
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE102018124997A1|2019-04-18|
    US20190111466A1|2019-04-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20130152652A1|2010-10-01|2013-06-20|Cambridge Enterprise Limited|Spin forming process and apparatus for manufacturing articles by spin forming|
    KR20150019621A|2013-08-14|2015-02-25|현진테크|Method for forming tire rim of heavy equipment vehicle and the forming machine|
    US20170001229A1|2013-11-29|2017-01-05|Kawasaki Jukogyo Kabushiki Kaisha|Spinning forming device and spinning forming method|
    CN103752720A|2014-01-24|2014-04-30|晋江腾云祥贸易有限公司|Double rolling wheel type aluminum alloy wheel hub rolling machine and rolling technological process thereof|
    EP3351313A1|2017-01-18|2018-07-25|Leifeld Metal Spinning AG|Method and device for pressure rolling|
    DE1900354A1|1969-01-04|1970-07-30|Leifeld & Co|Projection pressure drawing large rotationally - symmetrical hollow workpieces|
    JP2652334B2|1993-11-10|1997-09-10|株式会社レイズエンジニアリング|Rotary forging equipment|CN109590137A|2019-01-15|2019-04-09|中信戴卡股份有限公司|A kind of wheel ornament ring spray painting positioning fixture|
    CN112846644A|2020-12-15|2021-05-28|浙江中硅新材料有限公司|Method for producing automobile hub through hot forming process|
    法律状态:
    2019-11-05| BA2A| Patent application published|Ref document number: 2729706 Country of ref document: ES Kind code of ref document: A1 Effective date: 20191105 |
    2020-10-30| FC2A| Grant refused|Effective date: 20201026 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017123997|2017-10-16|
    DE102018124997.7A|DE102018124997A1|2017-10-16|2018-10-10|Production device of light metal motor vehicle rims|
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