• 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:
    PCT No. PCT/GB83/00245 Sec. 371 Date May 10, 1984 Sec. 102(e) Date May 10, 1984 PCT Filed Oct. 3, 1983 PCT Pub. No. WO84/01529 PCT Pub. Date Apr. 26, 1984.A tool for use in manufacture of a hollow article with an undercut internal surface, such as the outer member of a constant velocity ratio universal joint, comprising first and second elements (34,38) together defining the shape required in the article interior and an internal cavity (40). An expander (23) fits in the cavity to hold the elements in their operative positions, and the first elements have parallel or outwardly convergent sides which enable their inward movement between the second elements after withdrawal of the expander from the cavity. After such inward movement, the first elements can be withdrawn from the shaped article, followed by the second elements.
    公开号:SU1657050A3
    申请号:SU843749936
    申请日:1984-06-11
    公开日:1991-06-15
    发明作者:Альфред Лангфорд Эдвард；Лесли Нил Реджинальд；Аллен Морден Джеффри
    申请人:Пфд Лимитед (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the processing of metals by pressure, in particular, to devices for the formation of hollow products.
    The purpose of the invention is the expansion of technological capabilities.
    FIG. 1 shows the device, the first stage of its work; in fig. 2 - forming elements, cross section, in the first stage of work; in fig. 3 - the device, the second stage of work; in fig. 4 - formative elements, cross section, in the second stage of work; in fig. 5 - the device, the third stage of work; in fig. 6 - forming elements, cross section, at the third stage of work; in fig. 7 - view of the resulting product.
    A device for forming hollow products comprises a punch consisting of a central rod 1 with a base and a conical side surface 2, enclosing the rod of several shaping elements in the form of sets formed by elements 3 and 4 arranged alternately in the circumferential direction. Forming elements have external working surfaces and conical surfaces 5.
    ABOUT
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    with
    The forming elements 4 have supporting longitudinal surfaces 6. The device also contains a holder 7 mounted with the possibility of axial movement relative to the rod 1 within the limits of the pin 8. The holder has a flange 9 and a ring 10 moving along the holder. The ring 10 is pushed up by means of several tension springs 11. The springs are evenly distributed around the ring 10. The yoke is made with longitudinal grooves 12, in which the studs 13 are connected to the forming elements 4. The forming elements 3 have working lugs 14, and the forming elements 4 have working lugs 15. The forming elements 3 are connected to clip by means of studs 16.
    The device is attached to the press plug 17 and is intended to process a workpiece having a hollow cup-shaped portion 18 and a centering protrusion 19. The surface shape of the molded workpiece is shown by dotted lines. The original blank does not contain any recessed areas and can be obtained by conventional punching methods using a single element tool.
    The tool works as follows.
    As the press plunger moves downward, the shaping elements are introduced into the cavity of the workpiece and are deformed, after which the tool must be removed from the cavity of the resulting product. The first removal step is shown in FIG. 3 and 4. Removing the tool takes place in the locked position of the product, preventing its upward movement. When the press plunger is raised, the stud 8 rests on the edge of the groove of the base of the rod, tension of the springs 11 occurs, and the rod 1 is brought out of contact with elements 3 and 4. As a result, elements 3 are released and can deviate inside the cavity due to the fact that the ends of the studs 16 are inserted into the corresponding holes of the clip. Thus, elements 3 are derived from the product. The forming elements 4 at this stage cannot be removed from the product, since the rod 1 still remains in contact with their support surfaces 6. As the press plunger moves upwards, the springs 11 tighten even more, as the studs 13 associated with the elements 4, are moved downwardly relative to the grooves 12, moving, in turn, down the ring 7 over the ring 7,
    As a result, the position shown in FIG. 5. The rod 1 comes out of contact with the supporting surfaces of the elements 4.
    Thereafter, elements 4 are shifted
    inside the cavity of the product and can be removed from it. The finished product is removed from the processing position.
    Elements of the device take the initial position. The cycle is repeated.
    权利要求:
    Claims (5)
    [1]
    1. Tool for forming hollow products mainly with partially
    an undercut surface containing a punch consisting of a central rod with a base and a conical side surface adjacent to its working end, and also covering several pillars with working surfaces for shaping the inner surface of the product with protrusions and contact areas with the rod and plots, the inner surface
    a reciprocal conical surface of the rod radially located relative to the rod with the possibility of movement along its axis and radial movement, as well as means for holding the forming elements in the form of a cage mounted concentrically with the rod with the possibility of moving along its axis covering the forming elements along part of their lateral outer surface having stops for limiting its axial movement, characterized in that, in order to expand technological capabilities, the forming elements you are made in the form of two sets,
    elements of one set are arranged in a circumferential direction with alternation with elements of another set; each of the sets is placed with the possibility of alternate movement when removed from
    the cavity of the product relative to the rod in the directions along and across its axis, while the elements of the kit, moved in the final stage of extraction from the cavity of the product, are installed with the possibility of placement in zones free from contact with the elements of the other kit.
    [2]
    2. The tool according to claim 1, characterized in that the side contact surfaces of each element of one of the sets are made parallel to each other,
    [3]
    3. Tool pop, 1. distinguishing so. that the side contact surfaces of each element of one of the sets are converging towards the cage.
    [4]
    4. Tool on PP. 1-3, characterized in that the shaping elements of one of the sets are made with supporting longitudinal sections of interaction with the core, having a response form and located on the side of their working ends.
    [5]
    5. The tool on the PP. 1-4, about 1 and y and y with the fact that the cage is made with radial holes and by means of
    the studs located therein are associated with shaping elements.
    6, Tool according to Claims 1-4, characterized in that the forming elements with said supporting longitudinal sections are installed with relative movement along the cage, and the forming elements of both sets are spring-loaded relative to the rod in its axial direction.
    -
    Fig1
    FIG. 2
    75
    Fig s
    7V
    Fig 5
    FIG. 6
    Fig 7
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1657050A3|1991-06-15|Tool for shaping hollow articles, particularly with partly undercut surface
    US5634367A|1997-06-03|Press forming device
    KR950011255B1|1995-09-30|Die assembly for and method of forming metal end unit
    US4748836A|1988-06-07|Method of forming a ridge in a tube member
    KR950005405A|1995-03-20|Cold forming method of toothed ring shaped article and molding apparatus using same
    US5697245A|1997-12-16|Apparatus for forge-forming outer-ring of constant velocity joint and method thereof
    CA1272371A|1990-08-07|Tool for and method of making hollow articles
    CN210435171U|2020-05-01|Shaping die for section steel groove ring
    US2843173A|1958-07-15|Beading dies for flanging and ribbing cylindrical member
    SU1342565A1|1987-10-07|Die for making holes and slots in hollow articles
    SU925480A1|1982-05-07|Apparatus for forming barrel-shaped parts
    US1541952A|1925-06-16|Method for producing ornaments
    KR0137326B1|1998-07-01|Ball jointer making method and machine
    US1622179A|1927-03-22|Method of making clamping rings for commutators
    SU974473A1|1982-11-15|Device for manufacturing collector current-feeding part
    SU1362541A1|1987-12-30|Die for drawing
    SU1655645A1|1991-06-15|Die for isothermal forging
    JP2002106535A|2002-04-10|Nut case and its manufacturing method in push-on nut
    KR100216405B1|1999-08-16|Head part deformation method and apparatus of anchor bolt
    SU1712120A1|1992-02-15|Device for assembly of ceramic part to metal part
    SU1593774A1|1990-09-23|Die for cubic straining
    SU1319997A1|1987-06-30|Stamp insert for pressworking parts
    US3322086A|1967-05-30|Method and apparatus for forming screw threads
    SU1505663A1|1989-09-07|Die for extruding articles with cavities
    SU1593775A1|1990-09-23|Extruding die
    同族专利:
    公开号 | 公开日
    DE3372327D1|1987-08-13|
    YU207683A|1986-08-31|
    CA1214928A|1986-12-09|
    AU2071183A|1984-05-04|
    WO1984001529A1|1984-04-26|
    ES526494A0|1984-08-16|
    YU44387B|1990-06-30|
    DD211498A5|1984-07-18|
    KR900008352B1|1990-11-17|
    US4610155A|1986-09-09|
    ES8406914A1|1984-08-16|
    ZA837328B|1984-05-30|
    AU565956B2|1987-10-01|
    IT1193446B|1988-06-22|
    MX158807A|1989-03-15|
    EP0122921A1|1984-10-31|
    KR840006297A|1984-11-29|
    EP0122921B1|1987-07-08|
    IT8368057D0|1983-10-13|
    JPS59501857A|1984-11-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1347448A|1963-02-06|1963-12-27|Boucke & Co Gmbh|Method and device for forging blanks for steering roller shafts intended for motor cars from sections of bar|
    JPS5213388A|1975-07-23|1977-02-01|Hitachi Ltd|Ion analyzer|
    JPS5944138B2|1975-08-20|1984-10-26|Ntn Toyo Bearing Co Ltd|
    DE2830275C3|1978-07-10|1984-02-09|Volkswagenwerk Ag, 3180 Wolfsburg|Press tool for producing an inner contour of a preformed workpiece|
    AT358365B|1978-11-29|1980-09-10|Ver Edelstahlwerke Ag|FORGED DIE|
    DE3004024C2|1980-02-05|1985-08-01|Liebergeld, Rudolf, Dipl.-Ing., 8500 Nürnberg|Tool for producing a joint body|
    JPS5762831A|1980-10-02|1982-04-16|Nissan Motor Co Ltd|Forging die for part having reverse gradient|
    JPS63138B2|1980-11-28|1988-01-05|Toyota Motor Co Ltd|
    JPS6341666B2|1981-04-28|1988-08-18|Aida Eng Ltd|GB8404321D0|1984-02-18|1984-03-21|Pfd Ltd|Tool|
    GB8520641D0|1985-08-17|1985-09-25|Pfd Ltd|Tool|
    DE3712301C2|1987-04-10|1994-04-28|Loehr & Bromkamp Gmbh|Press tool|
    JPH0341249B2|1987-07-03|1991-06-21|
    FR2649024B1|1989-07-03|1994-05-13|Peugeot Automobiles|METHOD FOR MANUFACTURING A PART HAVING A PARTIALLY SPHERICAL INTERNAL SURFACE AND AN OPEN END|
    JP2729852B2|1990-08-07|1998-03-18|本田技研工業株式会社|Manufacturing method of ironing punch used for molding of outer ring for ball joint|
    DE4214444B4|1992-05-06|2004-07-29|Hmp Engineering Gmbh|Process for the production of spherical shells for constant velocity joints and profile mandrel for use in the process|
    US6256853B1|2000-01-31|2001-07-10|Eveready Battery Company, Inc.|Crimping die employing powered chuck|
    DE102004027950A1|2004-06-08|2006-02-16|Ina-Schaeffler Kg|Vane-type camshaft adjuster|
    EP2532924B1|2010-03-17|2019-11-20|NSK Ltd.|Ball screw, manufacturing method of nut for ball screw|
    CN102861848A|2011-07-06|2013-01-09|江苏威鹰机械有限公司|Cold-forging molded concave die of bell shell of ball-cage type universal joint|
    CN102744359A|2012-06-07|2012-10-24|安徽铖友汽车零部件制造有限公司|Cold extrusion forming process of inner cavity of outer ball cage|
    CN105317861B|2014-07-29|2017-10-27|上海纳铁福传动系统有限公司|Interior external ball cage disjunctor forging and its forging mold|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8229391|1982-10-14|
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