EP1005933A1 - Machine de forgeage à poinçons multiples - Google Patents

Machine de forgeage à poinçons multiples Download PDF

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Publication number
EP1005933A1
EP1005933A1 EP98117907A EP98117907A EP1005933A1 EP 1005933 A1 EP1005933 A1 EP 1005933A1 EP 98117907 A EP98117907 A EP 98117907A EP 98117907 A EP98117907 A EP 98117907A EP 1005933 A1 EP1005933 A1 EP 1005933A1
Authority
EP
European Patent Office
Prior art keywords
tools
plunger
forging machine
machine according
ram forging
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.)
Withdrawn
Application number
EP98117907A
Other languages
German (de)
English (en)
Inventor
Wilhelm Krieger
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.)
KRIEGER, WILHELM
Original Assignee
SMS Eumuco 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.)
Filing date
Publication date
Application filed by SMS Eumuco GmbH filed Critical SMS Eumuco GmbH
Priority to EP98117907A priority Critical patent/EP1005933A1/fr
Publication of EP1005933A1 publication Critical patent/EP1005933A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/03—Die mountings

Definitions

  • the radial forming machines referred to as forging machines are among those Workpiece longitudinal axis arranged as a system axis, radially on the workpiece acting plungers that carry the tools.
  • Usually four X-shaped Arranged rams enclose the workpiece with their tools to the extent that the forming takes place without free spreading, whereby a high forming capacity low number of stitches and good forging is guaranteed.
  • To one Tool collision is excluded the available tool width of the workpiece dimension adapt. This has been done for over seven decades ongoing development (DE-PS 449 558) of multi-ram forging machines Numerous proposals have been made which - insofar as they are noteworthy input have found practice - can be divided into two categories.
  • the tools of the tool set are offset against each other that the part of the tool width of the end face of the adjacent tool that adjoins the work surface is covered, the overlap by the handlebars leading tools (DE-AS 13 01 790; U.S. Patent 3,613,432; Pahnke's "Forge Machines” brochure Engineering GmbH & Co. KG, Düsseldorf; Brochure "THE NEW RADIALFORGER” from GFM GmbH, Steyr) or by transverse adjustment of the tools compared to theirs Tappets adapted to the respective workpiece dimensions End positions of the rams (EP 0 228 030 B1; brochure P1 / 317 of 4/90 "Radial Forming Forging Machine” SMS Hasenclever GmbH, Düsseldorf) is given.
  • the object of the invention is to change the tools from at least three, in particular four radially arranged around the workpiece axis in a plane structurally designed forging rams acting on the workpiece simplify and improve operationally.
  • This object is achieved according to the invention solved in that the plunger with the tools or the tools supporting head piece on the tappets rotatable about the tappet axis and in the Rotational positions can be determined, the work surfaces of the tools at least in two mutually perpendicular dimensions are different and the stroke the plunger on the tool contact in the respective rotary position Tools excluding end position is controllable.
  • 1 denotes one of two front panels of a machine frame.
  • the front panels 1 are provided with a through opening 2 and four notches 3 for receiving pins 4, with which yoke pieces 5 are supported in the front panels 1 and this to the Complement the machine frame.
  • Each yoke piece 5 - see Figure 2 - is with one Guide bush 6 provided for a plunger 7, the guide bush 6 as Cylinder liner is designed for the plunger 7 designed as a differential piston
  • the yoke piece 5 and the guide bush 6 are through a cover 8 completed, which is held by hollow tie rods 9 and nuts 10 of which a pull rod 9 with its nuts 10 (due to the illustration with a staggered Cut) is visible.
  • the differential piston is used Ram 7 via the main feed line 11 in the working direction and via the auxiliary feed line 12 for retreat.
  • the stroke control is carried out in DE-38 03 632 C2 known manner via the valve plug stem 13 from a servo unit 14. With 15 denotes the pressure medium discharge line.
  • the plunger 7 with the groove 17 is rotatably but axially movable.
  • the plunger 7 is at its end facing the system axis with a Round pin 18 provided which rotatably carries a head piece 19, which in turn a Tool 20 carries.
  • a tie rod 21 with an anchor plate 22 and a piston 23 is provided under the action of a spring 24 presses the head piece 19 against the End face of the plunger 7, wherein the spring 24 and the piston 23 of the tie rod 21 is located in a spring bushing 25 which is fastened in a bore in the plunger 7.
  • the head piece 19 is with a ring gear 26 provided which engages in one end position of the tappet 7 in a pinion.
  • the pinion 27 is attached to a shaft 28 which passes through the hollow tie rod 9 and on it other end is coupled to a rotary drive 29
  • the plunger 30 is in the guide bush 31 rotatable and it is the tool 32 via the head 33 with the plunger 30th connected.
  • the tool 32 is rotated with the plunger 30, for which purpose the head piece 33 is provided with a ring gear 34 in which a pinion 35 engages.
  • This pinion 35 has a tooth width on the entire stroke of the plunger 30 with the ring gear 34 covers, so that the rotational position of the plunger 30 and tool 32 via the pinion 35, the shaft 36 and the rotary drive 37 can be locked.
  • the modification according to Fig. 4 is that for rotating the head piece 19 a with this connected sprocket 38 is provided which is via a chain 39 and a chain sprocket 40 is rotatable, the chain sprocket 40 and its shaft 41 in a bearing box 42 moved with the tappet 7 are mounted.
  • The is driven Shaft 41 via a multi-spline coupling 43 of the hollow shaft 44 on one end face the rotary drive 45 attached to the machine frame.
  • Figure 5 shows a modification in which the guide bush 46 in which it receiving yoke piece 47 rotatably and the tool 48 on the Head piece 49 is fixedly connected to the plunger 50.
  • the plunger 50 is in the Guide bushing 46 is axially movable, but through a groove 51 that engages Key 52 is rotationally fixed.
  • the guide bush 46 is with a tooth or Sprocket 53 connected, which is rotatable via a rotary drive, not shown is.
  • FIG. 6 shows the section of another exemplary embodiment.
  • the yoke 55 is with a cylinder bore 56 in which a plunger 57 designed as a piston is guided axially.
  • the cylinder bore 56 is closed by a Cylinder cover 58 which allows passage of a piston rod 59 and with a square recess 60 has a square shoulder 61 on the piston rod 59 includes, with which the plunger 57 is rotationally fixed.
  • the cylinder cover 58 is supported by a traverse 62 which can be adjusted via threaded nuts 63 along spindles 64, to adjust the stroke position of the plunger 57, which is only in the cylinder bore 56 is movable by a short working stroke.
  • the spindles 64 are in bores 65 in the Yoke piece 55 anchored
  • a return piston 66 is fastened on the piston rod 59.
  • the plunger 57 is provided with an end plate 67 and a tool 68 Provide head 69.
  • the head piece 69 is with a pin 70 in a bore End plate 67 rotatably mounted.
  • the head 69 is rotated via a Shaft 71, which is held with a square head 72 in a rotationally fixed manner in the head piece 71 and on is provided at its opposite end with a spline 73 for Coupling with a rotary drive 74.
  • the shaft 71 is provided with a collar ring 75, Via which the shaft 71, which serves as a tie rod, extends from a piston rod 59 supporting spring assembly 76 is under tension and so that head 69th clamped against the plunger 57.
  • piston rod 59 is a ring cylinder 77 connected, from which an annular piston 78 with removal of the tensile stress the shaft 71, the spring assembly 76 spans, so that the rotation of the head piece 71 with the tool 68 is possible.
  • Figures 7a to 7d and 8a to 8f show a workflow in stitch plans, the first section shown in FIGS. 7a to 7d with a tool setting takes place in which the long side of the tools are transverse to the workpiece axis.
  • the round starting workpiece becomes a square formed, which after rotation of the workpiece in the second pass ( Figure 7b) to an octagon, in a third pass ( Figure 7c) again after turning the Workpiece by 45 ° to a square and finally after another rotation 45 ° in the fourth pass (Figure 7d) is formed into an octagon.
  • the turning of the tools offers further possibilities for using the Forging machines for the forging of workpieces emphasized along the longitudinal axis without a tool change.
  • plunging is possible up to one Square or round cross-section with an edge length or a diameter slightly larger than the long side of the tool, provided the four plungers are one Four ram forging machine are used. If only two opposite Tappets can also be used to produce smaller cross-sections become.
  • the work surfaces of the tools can - as in the embodiments of the Figures 1 to 11 provided - be rectangular, with an aspect ratio from 2.5: 1 to 3: 1 is particularly advantageous. Also within the scope of the invention other tool shapes up to that shown in Figures 12a to 12d elliptical shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
EP98117907A 1998-09-22 1998-09-22 Machine de forgeage à poinçons multiples Withdrawn EP1005933A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98117907A EP1005933A1 (fr) 1998-09-22 1998-09-22 Machine de forgeage à poinçons multiples

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98117907A EP1005933A1 (fr) 1998-09-22 1998-09-22 Machine de forgeage à poinçons multiples

Publications (1)

Publication Number Publication Date
EP1005933A1 true EP1005933A1 (fr) 2000-06-07

Family

ID=8232672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117907A Withdrawn EP1005933A1 (fr) 1998-09-22 1998-09-22 Machine de forgeage à poinçons multiples

Country Status (1)

Country Link
EP (1) EP1005933A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2538130C1 (ru) * 2013-06-24 2015-01-10 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ радиальной ковки шестигранных профилей
RU2538132C1 (ru) * 2013-08-06 2015-01-10 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ радиальной ковки шестигранных профилей
RU2541238C1 (ru) * 2013-12-10 2015-02-10 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ радиальной ковки шестигранных профилей
RU2607108C1 (ru) * 2015-09-08 2017-01-10 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ радиальной ковки шестигранных полых профилей
RU2634543C1 (ru) * 2016-12-08 2017-10-31 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ получения шестигранных профилей
RU2636610C2 (ru) * 2015-11-02 2017-11-24 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ радиальной ковки
RU2655527C1 (ru) * 2017-04-10 2018-05-28 Григорий Иванович Коваль Способ получения круглых профилей
RU2655504C1 (ru) * 2017-09-05 2018-05-28 Григорий Иванович Коваль Способ получения шестигранных профилей
RU2655514C1 (ru) * 2017-04-10 2018-05-28 Григорий Иванович Коваль Способ получения круглых профилей
RU2674369C1 (ru) * 2018-07-25 2018-12-07 Федеральное государственное бюджетное учреждение науки Институт машиноведения Уральского отделения Российской академии наук Способ ковки длинномерных заготовок
RU2676541C1 (ru) * 2017-08-15 2019-01-09 Григорий Иванович Коваль Способ получения круглых профилей

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472058A (en) * 1966-12-30 1969-10-14 Black Clawson Co Forging apparatus
US3526122A (en) * 1966-09-13 1970-09-01 Davy & United Eng Co Ltd Dieholder for a press
US3722255A (en) * 1971-09-08 1973-03-27 Gulf & Western Ind Prod Co Rotatable press die
EP0228030A2 (fr) * 1986-01-02 1987-07-08 SMS Hasenclever GmbH Machine de forgeage
DE3729631A1 (de) * 1986-09-16 1988-03-17 Hasenclever Maschf Sms Schmiedemaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526122A (en) * 1966-09-13 1970-09-01 Davy & United Eng Co Ltd Dieholder for a press
US3472058A (en) * 1966-12-30 1969-10-14 Black Clawson Co Forging apparatus
US3722255A (en) * 1971-09-08 1973-03-27 Gulf & Western Ind Prod Co Rotatable press die
EP0228030A2 (fr) * 1986-01-02 1987-07-08 SMS Hasenclever GmbH Machine de forgeage
DE3729631A1 (de) * 1986-09-16 1988-03-17 Hasenclever Maschf Sms Schmiedemaschine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2538130C1 (ru) * 2013-06-24 2015-01-10 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ радиальной ковки шестигранных профилей
RU2538132C1 (ru) * 2013-08-06 2015-01-10 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ радиальной ковки шестигранных профилей
RU2541238C1 (ru) * 2013-12-10 2015-02-10 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ радиальной ковки шестигранных профилей
RU2607108C1 (ru) * 2015-09-08 2017-01-10 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ радиальной ковки шестигранных полых профилей
RU2636610C2 (ru) * 2015-11-02 2017-11-24 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ радиальной ковки
RU2634543C1 (ru) * 2016-12-08 2017-10-31 Общество с ограниченной ответственностью Научно-производственное предприятие "МЕТЧИВ" (ООО НПП "МЕТЧИВ") Способ получения шестигранных профилей
RU2655527C1 (ru) * 2017-04-10 2018-05-28 Григорий Иванович Коваль Способ получения круглых профилей
RU2655514C1 (ru) * 2017-04-10 2018-05-28 Григорий Иванович Коваль Способ получения круглых профилей
RU2676541C1 (ru) * 2017-08-15 2019-01-09 Григорий Иванович Коваль Способ получения круглых профилей
RU2655504C1 (ru) * 2017-09-05 2018-05-28 Григорий Иванович Коваль Способ получения шестигранных профилей
RU2674369C1 (ru) * 2018-07-25 2018-12-07 Федеральное государственное бюджетное учреждение науки Институт машиноведения Уральского отделения Российской академии наук Способ ковки длинномерных заготовок

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