US3908434A - Hammer forging device - Google Patents

Hammer forging device Download PDF

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Publication number
US3908434A
US3908434A US454518A US45451874A US3908434A US 3908434 A US3908434 A US 3908434A US 454518 A US454518 A US 454518A US 45451874 A US45451874 A US 45451874A US 3908434 A US3908434 A US 3908434A
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US
United States
Prior art keywords
hammers
forging
arm levers
forging device
supports
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.)
Expired - Lifetime
Application number
US454518A
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English (en)
Inventor
Bernd Ribback
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Individual
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Individual
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Filing date
Publication date
Priority claimed from DE19732316801 external-priority patent/DE2316801C3/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3908434A publication Critical patent/US3908434A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • ABSTRACT Foreign pp Priority Data A forging device for forging a variety of cross sec- Apr. 4 1973 Germany 2316801 tional profiles preferably of rod material so that the material can be deformed between hammers and pres- [52] US. Cl. 72/400; 72/403; 72/452 sure surfaces.
  • the hammers are inclined at right an- [51] Int. Cl.- B21J 7/20 gles toward each other wherein the axis of the work [58] Field of Search 72/400, 402, 403, 452, piece lies in a vertical symmetric plane between the 72/407 two hammers.
  • the hammers are connected at the ends of a pair of arms having their opposite ends pivoted to [56] References Cited the ends of a lever.
  • the present invention relates to a forging device for forging all types of cross-sectional profiles, preferably in rod material which is formed between feeding and pressing surfaces.
  • the material of the forged portion thus moves in the direction of the lowest flow resistance so that during hammer forging, single lengths of the forged portion will be obtained due to adjacent hammering.
  • forging rollers When complicated parts are formed from rod material in mass production, forging rollers are used so that the pair of rollers having a periodic groove move only one revolution.
  • the periodic grooves extend at most, about half way around the roller circumference, and are arranged with respect to a defined shape of a work piece.
  • the metal When free forms are hammered, the metal is forged with aimed or accurate hammering, and brought into the desired shape without using the actual form for the work piece.
  • Known forging devices operate with four tools so that each tool is driven by its own associated eccentric shaft and articulated type connecting rod.
  • the eccentric shafts are moved synchronously by means of gear drives. In order to adjust the tools into their proper stroke positions, the eccentric shafts are adjusted into position by separate means.
  • the work piece axis is cut from a vertical symmetrical plane between two hammers, inclined toward each other at right angles, and driven by a common drive shaft.
  • the hammers are guided linearly by means of carriers against one or a plurality of forging supports for the anvil plate.
  • FIG. 1 is a front view of a forging device according to the invention, partly in cross section;
  • FIGS. 2 and 3 show the carrier hammers of the machine of FIG. 1 in plan view.
  • the forging device of the subject type consists essentially of two double arm levers l and 2. Double arm levers 1 and 2 are driven back and forth in a pivotable movement around pivot axes 3. Pivot axes 3 for double arm levers 1 and 2 are rotatably mounted. on eccentric shafts 7, and are adjustable for the tool position laterally with respect to the work piece axis 9 by means of a worm gear drive 8.
  • axis 9 of the work piece be in a vertical symmetric plane A-A between two hammers 10, which are inclined toward each other at right angles.
  • the hammers are driven by a common drive shaft 4, and are guided linearly by means of one or a plurality of carriers 11 against one or a plurality of forging supports 17 for the anvil plate.
  • Carriers 11 of hammers 10 which run in linear guides 14 are provided with rotatable shaft bodies or bushings l3. Ends or trunnions 12, which move hammers 10, extend vertically with respect to their rotating axis, and are pivotably responsive to the common eccentric shaft, which is displaceably coupled to double arm levers 1 and 2. In this way, a balanced movement is created between the circular path of lever ends 12, and linear path 14 of hammer carriers 1 1.
  • eccentric drive 21 which is mounted on the drive shaft for double arm levers 1 and 2, are adjustably mounted, and fixed against each other in the rotatable direction.
  • driving eccentric shaft 4 may be formed in two portions, receiving at each portion an eccentric 21 onto which one of the double arm lever l or 2, respectively, is mounted.
  • the forging portion of the forging device consists of two or a plurality of striking surfaces 19 or 19a, respectively, at hammers 10, and pressure surfaces 22 and 22a, respectively, on anvil plates 17, arranged in series in the direction of forging axis 9.
  • the striking surfaces 19 and 19a on hammers l0 and pressure surfaces 22 and 22a, respectively, on anvil plates 17, are spaced apart from each other, depending on the cross section of the part to be forged in direction of forging axis 9. It is also possible to set off the various surfaces 19 and 19a on hammers 10, and pressure surfaces 22 and 22:: on anvil plates 17 in a rotatable direction with respect to forging axis 9.
  • a forging device for forging a variety of cross sectional profiles preferably from rod material which is deformed between hammer and pressure surfaces comprising two hammers inclined at right angles toward each other, a common drive means for driving the hammers against forging supports, and carrier means for guiding the hammers linearly against the forging supports, linear guides inclined at right angles to each other for guiding said carrier means, rotatable shaft bodies for moving the inclined hammers, and wherein said common drive means comprises arm levers each pivotably mounted on an eccentric pivot shaft, the ends of said levers moving said hammers toward the forging supports.
  • each of said arm levers includes bearings and adjustment means coupled to said bearings for independently adjusting the eccentricity of said arm levers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Press Drives And Press Lines (AREA)
US454518A 1973-04-04 1974-03-25 Hammer forging device Expired - Lifetime US3908434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732316801 DE2316801C3 (de) 1973-04-04 Hämmermaschine

Publications (1)

Publication Number Publication Date
US3908434A true US3908434A (en) 1975-09-30

Family

ID=5876969

Family Applications (1)

Application Number Title Priority Date Filing Date
US454518A Expired - Lifetime US3908434A (en) 1973-04-04 1974-03-25 Hammer forging device

Country Status (10)

Country Link
US (1) US3908434A (fr)
JP (1) JPS5339010B2 (fr)
BR (1) BR7402640D0 (fr)
CA (1) CA997178A (fr)
DD (1) DD110189A5 (fr)
ES (1) ES419826A1 (fr)
FR (1) FR2224222B1 (fr)
GB (1) GB1405585A (fr)
IT (1) IT998958B (fr)
PL (1) PL90921B1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4203477A (en) * 1977-09-15 1980-05-20 Otto Bihler Maschinenfabrik Gmbh & Co. Kg Material working machine mounting tools in several planes
US4229963A (en) * 1978-05-26 1980-10-28 Savinov Evgeny A Machine for noncutting metal shaping
US4571981A (en) * 1984-03-15 1986-02-25 Southern Railway Company Spike straightening apparatus
US5666850A (en) * 1994-11-29 1997-09-16 Apic Yamada Corporation Motor-operated press mechanism
US20100126457A1 (en) * 2007-04-21 2010-05-27 Schaeffler Kg Method for the production of a drop-forged balancing shaft
RU2480307C2 (ru) * 2011-05-10 2013-04-27 Виктор Андреевич ЛАЗОРКИН Ковочный молот для кузнечной протяжки заготовок
CN104368738A (zh) * 2014-11-07 2015-02-25 二重集团（德阳）重型装备股份有限公司 楔式热模锻压力机偏心套调整装置
US20150336163A1 (en) * 2014-05-23 2015-11-26 Hirschvogel Umformtechnik Gmbh Method for producing a shaft
CN107913965A (zh) * 2017-12-29 2018-04-17 芜湖市恒浩机械制造有限公司 一种矩形零件三面自动锻造装置
CN108213298A (zh) * 2017-12-29 2018-06-29 芜湖市恒浩机械制造有限公司 一种轮转换向式矩形零件双面自动锻造装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531356B2 (de) * 1975-07-14 1977-07-28 Ribback, Erich, 5500 Trier Haemmermaschine
IT1236317B (it) * 1989-11-24 1993-02-09 Danieli Off Mecc Martellatrice idraulica semplificata

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US186999A (en) * 1877-02-06 Improvement in manufacture of elliptic springs
US3246502A (en) * 1960-04-12 1966-04-19 Brignoli Silvio Speed hammer swaging machine
US3395563A (en) * 1965-04-22 1968-08-06 Ribback Erich Forging machine
US3690142A (en) * 1969-12-19 1972-09-12 Gfm Fertigungstechnik Swaging machine for a continuous swaging of rod-shaped workpieces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US186999A (en) * 1877-02-06 Improvement in manufacture of elliptic springs
US3246502A (en) * 1960-04-12 1966-04-19 Brignoli Silvio Speed hammer swaging machine
US3395563A (en) * 1965-04-22 1968-08-06 Ribback Erich Forging machine
US3690142A (en) * 1969-12-19 1972-09-12 Gfm Fertigungstechnik Swaging machine for a continuous swaging of rod-shaped workpieces

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4203477A (en) * 1977-09-15 1980-05-20 Otto Bihler Maschinenfabrik Gmbh & Co. Kg Material working machine mounting tools in several planes
US4229963A (en) * 1978-05-26 1980-10-28 Savinov Evgeny A Machine for noncutting metal shaping
US4571981A (en) * 1984-03-15 1986-02-25 Southern Railway Company Spike straightening apparatus
US5666850A (en) * 1994-11-29 1997-09-16 Apic Yamada Corporation Motor-operated press mechanism
US20100126457A1 (en) * 2007-04-21 2010-05-27 Schaeffler Kg Method for the production of a drop-forged balancing shaft
US8327542B2 (en) * 2007-04-21 2012-12-11 Schaeffler Kg Method for the production of a drop-forged balancing shaft
RU2480307C2 (ru) * 2011-05-10 2013-04-27 Виктор Андреевич ЛАЗОРКИН Ковочный молот для кузнечной протяжки заготовок
US20150336163A1 (en) * 2014-05-23 2015-11-26 Hirschvogel Umformtechnik Gmbh Method for producing a shaft
US9884361B2 (en) * 2014-05-23 2018-02-06 Hirschvogel Umformtechnik Gmbh Method for producing a shaft
CN104368738A (zh) * 2014-11-07 2015-02-25 二重集团（德阳）重型装备股份有限公司 楔式热模锻压力机偏心套调整装置
CN107913965A (zh) * 2017-12-29 2018-04-17 芜湖市恒浩机械制造有限公司 一种矩形零件三面自动锻造装置
CN108213298A (zh) * 2017-12-29 2018-06-29 芜湖市恒浩机械制造有限公司 一种轮转换向式矩形零件双面自动锻造装置
CN108213298B (zh) * 2017-12-29 2019-06-11 芜湖市恒浩机械制造有限公司 一种轮转换向式矩形零件双面自动锻造装置

Also Published As

Publication number Publication date
CA997178A (en) 1976-09-21
DE2316801B2 (de) 1977-06-16
FR2224222B1 (fr) 1979-06-29
PL90921B1 (fr) 1977-02-28
IT998958B (it) 1976-02-20
DD110189A5 (fr) 1974-12-12
ES419826A1 (es) 1976-05-01
DE2316801A1 (de) 1974-10-24
JPS5339010B2 (fr) 1978-10-19
JPS507758A (fr) 1975-01-27
FR2224222A1 (fr) 1974-10-31
GB1405585A (en) 1975-09-10
BR7402640D0 (pt) 1974-11-19

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