US3888104A - Forging machine - Google Patents

Forging machine Download PDF

Info

Publication number
US3888104A
US3888104A US431470A US43147074A US3888104A US 3888104 A US3888104 A US 3888104A US 431470 A US431470 A US 431470A US 43147074 A US43147074 A US 43147074A US 3888104 A US3888104 A US 3888104A
Authority
US
United States
Prior art keywords
tools
forging
carriers
levers
pivot axes
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
US431470A
Other languages
English (en)
Inventor
Bernd Ribback
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3888104A publication Critical patent/US3888104A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 A forging machine having a pair of opposed double- [30] Foreign Application Priority Data arm levers pivotably mounted on eccentric shafts.
  • One Jan 12 1973 Germany N 2301537 end of each arm includes a trunnion having a shaft body or bushing for receiving a tool carrier and a tool. 52 us. Cl 72/407; 72/452 T 1001 Carrier Preferably in the form of 511 Im.
  • the tool carriers are mounted on double-arm type levers which are in turn mounted on pivotable axes. On both sides of the pivot axes, at the end of each lever arm are mounted means for producing the drive moment for the form shaping, or the release moment for the shaped article.
  • a large mechanical advantage on the smaller lever arms makes it possible to obtain large shaping forces on the longer lever arms with a relatively small exertion of force.
  • the tools can be rapidly brought to the material.
  • the tool positions which are lateral with respect to the common forging axis, can be easily adjusted by mounting the pivot axes to rotatable and adjustable eccentrics.
  • the invention takes note of the basic conception that the effective forces, which run from the lever arms laterally to the linear forging axis, are in an arcuate direction, thus causing a partly circular movement of the tool carriers, resulting in a poor and inexact forging.
  • each driven tool which is mounted on two armed levers pivotally around a respective pivot axis, is guided in a linear direction laterally with respect to the forging axis.
  • the invention is shown schematically in the drawing, by means of an example, constituted by a sole FIGURE which is a partially cross-sectional view.
  • An exemplary forging machine of the subject invention essentially consists of a pair of double-armed levers 1, 2 which are pivotably reciprocated at their outer ends about pivot axes 3 3, for respective tools 10 of the machine.
  • This drive is performed with a central, eccentric drive shaft 4 and by pressure elements 5, 6.
  • the pivot axes 3 of the levers 1 and 2 are rotatably mounted at their other ends on eccentric shafts 7 7 and are adjustable laterally with respect to a common linear forging axis 9, by means of respective worm gear drives 8 8.
  • each forming tool 10, driven by the respective pivotable lever l, 2 around the pivot axes 3, is in the form of a piston, guided linearly and laterally with respect to the linear forging axis 9.
  • the forming tools 10 are mounted on linear carriers 11.
  • the ends of levers l and 2, which pivot around their pivot axes 3, are in the form of couple trunnions l2 12 which axially engage shaft bodies or bushings 13 13.
  • the lat ter 13 are rotatably moveable in the linear carriers 11 or directly in the tools 10, laterally with respect to the linear forging axis 9.
  • the tool carriers 11 are in the form of pistons which are guided for reciprocation along the forging axis, namely in cylinders 14 14 that are disposed laterally with respect to the forging axis 9, axially on both sides of the rotatably moveable shaft bodies 13, as can be seen in the drawing.
  • adjustable indicating means 15 15 are provided.
  • Associated fingers l6 16 are spaced apart from each other and correspond to the stroke paths, so that they are only engaged by the outer ends of the respective strokes and thus displaced.
  • a plurality of the linearly guided forging tools 10 and their carriers 11, together with their associated pivot lever arms 1, 2, axes 3 and trunnions 12 may be assembled in series into a single machine unit, coaxially with respect to the forging axis 9. In this way, it is possible to pre-forge and rough forge as well as perform the finished forging of a piece of material at the same high temperature or from the same batch, and in a single shaping step.
  • a forging machine for providing linear movements for at least two forging tools along a common forging axis, despite arcuate movements of the associated drive, the machine comprising: two double-arm levers pivotably disposed adjacent one another and having respective pivot axes, for actuating the tools; linear displacement means for coupling the tools to outer arms of said levers, and for guiding the tools in areas that are laterally within the forging axis, so that the tools recip rocate linearly therealong; the tools having respective carriers coaxially aligned on the forging axis for linearly moving the tools into respective operative positions; said linear displacement means including coupling trunnions formed on said outer lever arms, having extensions substantially perpendicular to those of the respective carriers, bushings partly rotatable in said carriers and axially engaged by said trunnions for pivotably mounting and supporting said carriers, said bushings having bores therein for slidably journaling said trunnions, and cylindrical guides disposed laterally with respect to the forging

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
US431470A 1973-01-12 1974-01-07 Forging machine Expired - Lifetime US3888104A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2301537A DE2301537A1 (de) 1973-01-12 1973-01-12 Haemmermaschine

Publications (1)

Publication Number Publication Date
US3888104A true US3888104A (en) 1975-06-10

Family

ID=5868905

Family Applications (1)

Application Number Title Priority Date Filing Date
US431470A Expired - Lifetime US3888104A (en) 1973-01-12 1974-01-07 Forging machine

Country Status (10)

Country Link
US (1) US3888104A (enrdf_load_stackoverflow)
JP (1) JPS506556A (enrdf_load_stackoverflow)
BR (1) BR7400103D0 (enrdf_load_stackoverflow)
CA (1) CA992363A (enrdf_load_stackoverflow)
DD (1) DD109536A5 (enrdf_load_stackoverflow)
DE (1) DE2301537A1 (enrdf_load_stackoverflow)
ES (1) ES419827A1 (enrdf_load_stackoverflow)
FR (1) FR2213818B3 (enrdf_load_stackoverflow)
IT (1) IT998957B (enrdf_load_stackoverflow)
PL (1) PL90134B1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955222A (en) * 1988-03-16 1990-09-11 Dornier Luftfahrt Gmbh Deforming panels having ribs
US5321969A (en) * 1992-10-29 1994-06-21 The Whitaker Corporation Stamping and forming machine having adjustable stroke rams
US5408859A (en) * 1993-06-02 1995-04-25 The Whitaker Corporation Method of distributing torque between multiple press modules
US20120266642A1 (en) * 2009-10-06 2012-10-25 Ernst Schardt Forming machine for forging, in particular, stretch-forging, workpieces

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904308C2 (de) * 1979-02-05 1986-10-23 Hauni-Werke Körber & Co KG, 2050 Hamburg Verfahren und Anordnung zum Trocknen von Tabak
DE2531356B2 (de) * 1975-07-14 1977-07-28 Ribback, Erich, 5500 Trier Haemmermaschine
JPS53137859A (en) * 1977-05-09 1978-12-01 Kameo Doi Pinch pointing device
AT390902B (de) * 1989-02-07 1990-07-25 Gfm Fertigungstechnik Schmiedemaschine zum durchlaufschmieden strangfoermigen gutes, insbesondere stranggegossener brammen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798945A (en) * 1953-11-02 1957-07-09 Rca Corp Ultra-high frequency tuner of constant band-width
US3621702A (en) * 1969-02-25 1971-11-23 Bruno Kralowetz Continuous swaging apparatus
US3690142A (en) * 1969-12-19 1972-09-12 Gfm Fertigungstechnik Swaging machine for a continuous swaging of rod-shaped workpieces

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798945A (en) * 1953-11-02 1957-07-09 Rca Corp Ultra-high frequency tuner of constant band-width
US3621702A (en) * 1969-02-25 1971-11-23 Bruno Kralowetz Continuous swaging apparatus
US3690142A (en) * 1969-12-19 1972-09-12 Gfm Fertigungstechnik Swaging machine for a continuous swaging of rod-shaped workpieces

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955222A (en) * 1988-03-16 1990-09-11 Dornier Luftfahrt Gmbh Deforming panels having ribs
US5321969A (en) * 1992-10-29 1994-06-21 The Whitaker Corporation Stamping and forming machine having adjustable stroke rams
US5408859A (en) * 1993-06-02 1995-04-25 The Whitaker Corporation Method of distributing torque between multiple press modules
US20120266642A1 (en) * 2009-10-06 2012-10-25 Ernst Schardt Forming machine for forging, in particular, stretch-forging, workpieces
US9457393B2 (en) * 2009-10-06 2016-10-04 Langenstein & Schemann Gmbh Forming machine for forging, in particular, stretch-forging, workpieces

Also Published As

Publication number Publication date
PL90134B1 (enrdf_load_stackoverflow) 1977-01-31
FR2213818B3 (enrdf_load_stackoverflow) 1976-10-15
DE2301537A1 (de) 1974-07-18
CA992363A (en) 1976-07-06
DD109536A5 (enrdf_load_stackoverflow) 1974-11-12
BR7400103D0 (pt) 1974-08-15
FR2213818A1 (enrdf_load_stackoverflow) 1974-08-09
IT998957B (it) 1976-02-20
ES419827A1 (es) 1976-05-01
JPS506556A (enrdf_load_stackoverflow) 1975-01-23

Similar Documents

Publication Publication Date Title
US3696657A (en) Metal working crank and slide press mechanism
US4356716A (en) Bending machine
US6041699A (en) Ram driving device and press machine using same
US4741195A (en) Apparatus for clamping and unclamping feed bars for a transfer press
US3888104A (en) Forging machine
US4276823A (en) Eccentric press
US3929000A (en) High-speed short-stroke forging press
US3834214A (en) Forging press
US3844152A (en) Continuous drawing bench
US3572077A (en) Apparatus for a continuous swaging of rod-shaped workpieces
US1986410A (en) Sheet metal press
US3751996A (en) Device for transmitting adjustable translatory movements in two axis-directions
US3328995A (en) Vibratory straightening machines
US3570300A (en) Apparatus for ejecting articles in cold forming presses or the like
US4416198A (en) Drive for producing motion with dwells
US3690142A (en) Swaging machine for a continuous swaging of rod-shaped workpieces
JPH0231619B2 (enrdf_load_stackoverflow)
US3948134A (en) Machine tool driving apparatus
US3570298A (en) Forging
EP0297312B1 (en) Multipurpose swaging machine
US2962993A (en) Guide mechanism for metal drawing press
US3357223A (en) Tube reducing machine
US3835689A (en) Device for corrugation of strips
US4331416A (en) Article transfer device
US3433048A (en) High-speed multiple-action press