US3657916A - Forging machine - Google Patents

Forging machine Download PDF

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Publication number
US3657916A
US3657916A US8242A US3657916DA US3657916A US 3657916 A US3657916 A US 3657916A US 8242 A US8242 A US 8242A US 3657916D A US3657916D A US 3657916DA US 3657916 A US3657916 A US 3657916A
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United States
Prior art keywords
forging
saddle
guiding arm
guiding
thrust
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
US8242A
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English (en)
Inventor
Hans Jochim Pahnke
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.)
Maschinenfabrik Sack GmbH
Original Assignee
Maschinenfabrik Sack 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 Maschinenfabrik Sack GmbH filed Critical Maschinenfabrik Sack GmbH
Application granted granted Critical
Publication of US3657916A publication Critical patent/US3657916A/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

  • Each forging saddle is adjustably connected to its guiding arm so that its position relatlve to the guiding arm can be ad usted 3,473,565 1 1/1969 Schenk "72/399 either parallel to or transversely of the direction of thrust of 3,453,914 7/1969 Lemperm "Mn/447 the forging saddle.
  • This arrangement enables the cross-sec- 1,437,024 2/1922 Schu "72/448 tional area of forged bars produced in such a machine to be 1,480,077 l/l924 Johnson... .... .72/402 adjusteci 3,263,478 8/1966 Brauer 72/402 3,451,249 6/1969 Sharon ..72/402 3 Claims, 1 Drawing Figure PATENTEBAPR 25 I972 3. 657', 916
  • This invention relates to forging machines for reducing the cross-sectional area of a workpiece which is positioned on the forging axis of the machine, the machine comprising four forging saddles arranged at intervals around the forging axis, a driving mechanism for each forging saddle and arranged to impart a thrust to its forging saddle in a lateral direction with respect to the forging axis, and a guiding arm associated with each driving mechanism and forging saddle for guiding the thrust of the forging saddle, each guiding arm being inclined at an angle to the direction of thrust of its associated forging saddle and being pivotally mounted about an axle which is parallel to the forging axis.
  • the machine is adjustable to give forged products having different side ratios.
  • This is obtained by having the axle of each guiding arm adjustable in position transversely with respect to itself and to the forging axis.
  • By suitably adjusting the positions of the guiding arm axles it is possible to produce forged bars with cross-sectional side ratios which differ in a desired manner.
  • the most usual arrangement has four forging saddles arranged at 90 intervals around the forging axis and produces rectangular sectioned forged bars. By adjusting the axle portions of the guiding arms, the side ratios of the rectangular bars are adjusted.
  • each forging saddle is connected'to its guiding arm so that it is adjustable in position relative to the guiding arm.
  • alternate forging saddles are each adjustable in position relative to its guiding arm in a direction parallel to its direction of thrust, andthe or each intermediate forging saddle is adjustable in position relative to its guiding arm transversely with respect to its direction of thrust.
  • each forging saddle is adjusted relative to its corresponding guiding arm by means which is mounted on the guiding arm, and this means preferably includes a screw threaded spindle.
  • this means preferably includes a screw threaded spindle.
  • other mechanical adjustment means may be used, for example wedges or eccentries.
  • each spindle preferably works in a rotary, internally threaded bushwhich is mounted on the guiding arm so that it .is rotatable but not axially movable relative to the guiding arm, the bush being rotatably driven by a motor through a bevel gear drive to cause the spindle to move. axially and thus adjust the position of the forging saddle.
  • each spindle is preferably mounted in a forked end piece forming the free end of the corresponding guiding arm
  • the forked end piece having bearing surfaces which slideably support a transverse flange of the forging saddle, and the screw threaded adjustment spindle working in an internally threaded transverse drilling in a projection of the forging saddle which projects into the forked end piece, the outer end of the screw threaded adjustment spindle being rotatably driven by a motor through a straight gear drive to cause the forging saddle to move transversely.
  • the forging machine shown in the drawing has four forging saddles l, 2, 3, 4 arranged at intervals around the path followed through the machine by a workpiece 5. This path is called the forging axis.
  • Each of the forging saddles has a drive comprising a hydraulic cylinder and a forging piston.
  • the cylinders are shown in the drawing at 6, 7, 8, 9, and are pivoted to the machine frame 14 about pivot axles 10, l1, 12, 13 respectively.
  • the forging pistons are shown at 15, 16, 17, 18, and when hydraulic pressure is applied to their cylinders they drive the forging saddles 1, 2, 3, 4, in towards the middle of the machine, i.e., the forging axis, squashing the workpiece 5 to give it a smaller cross-sectional area.
  • the forging movement of the saddles is guided by four guiding arms 19, 20, 21, 22, each of which is inclined at an angle to the direction of thrust of the respective forging saddle l, 2, 3, 4.
  • the guiding arms 19, 20, 21, 22 are pivoted respectively about pivot axles 23, 24, 25, 26 which extend parallel to the direction of advance of the workpiece 5, i.e., the forging axis. This axis extends perpendicularly to the plane of the drawing.
  • the forging machine is adjusted to produce from the workpiece 5 a forged bar of square cross section, as represented in the drawing, and that it is now desired to produce a bar of rectangular cross section, i.e., with a side ratio other than 1 1.
  • the forging saddles 1 and 2 are adjusted in position in the direction of the arrow 27.
  • the forging saddles 3 and 4 are adjusted in position in the opposite direction, that is to say in the direction of the arrow 28.
  • This adjustment of the position of the forging saddles 1, 2, 3, 4 is made possible by adjustable connections between the forging saddles and their corresponding guiding arms.
  • Each forging saddle is connected to its guiding arm through an adjustment device fitted at the free end of the guiding arm.
  • the four adjustment devices are arranged in such a way that the two forging saddles 1, 3 can be adjusted in position, relative to their guiding arms 19, 21, in directions parallel to the direction of the forging thrust of these two saddles, that is to say towards and away from the forging axis of the machine.
  • the other two forging saddles 2, 4, on the other hand, are adjustable in position relative to their guiding arms 20, 22, transversely with respect to the directions of the forging thrust of these two saddles.
  • the adjustment devices for the two forging saddles 1,3 consist, in each case, of a rotary, internally threaded bush 29, capable of rotating about its axis in the end of its guiding arm 19, 21, but not capable of moving axially in the end of the guiding arm.
  • a rotary, internally threaded bush 29 capable of rotating about its axis in the end of its guiding arm 19, 21, but not capable of moving axially in the end of the guiding arm.
  • the rotary bush 29 there works an externally threaded spindle 30 to the inner end of which there is fixed the forging saddle 1,3.
  • the rotary bush 29 is supported axially by a thrust plate 31 forming the thrust face of the forging piston 15, 17 of the hydraulic cylinder 6, 8.
  • the rotary bush 29 is rotatably driven by a positioning motor 33, through a bevel gear drive 32. 7
  • each forging saddle is constructed as follows.
  • Each of these two adjustment devices consists of a forked end piece 34, forming the free end of the guiding arm 20, 22.
  • the forging saddle 2, 4 has an axial extension 35 which projects into the interior of the fork 34.
  • An externally threaded adjustment spindle 36 works in an internally threaded drilling in the extension 35 of the forging saddle 2, 4.
  • the outer end of the adjustment spindle 36 is rotatably driven by a positioning motor 39 through a straight gear drive 38.
  • the forging saddles may be adjusted in position in pairs, for example the two adjustment spindles 30, 36 of the two neighboring forging saddles l, 2, (3, 4) can be actuated synchronously by a common positioning motor.
  • a forging machine for reducing the cross-sectional area of a workpiece, said machine comprising means defining a predetermined path for the workpiece to travel through said machine, said path being called the forging axis, four forging saddles positioned at intervals around said forging axis, a
  • each of said adjustable connection means connecting alternate forging saddles to their guiding arms whereby each of said alternate forging saddles is adjustable relative to its guiding ann in a direction parallel to the direction of thrust of said forging saddle comprises a screw threaded spindle mounted on said forging saddle, a rotary internally threaded bush engageable with said screw threaded spindle, means mounting said rotary internally threaded bush on said guiding arm whereby said bush is rotatable but not axially movable relative to said guiding arm, a motor for rotatably driving said internally threaded bush, and bevel gear means drivingly connecting said motor to said internally threaded bush, whereby said spindle is caused to move axially to adjust the position of said forging saddle when said motor rotates said internally threaded bush through said bevel gear mechanism.
  • each of said adjustable connection means which is associated with a forging saddle which is adjustable in position relative to its guiding arm transversely with respect to a direction of the forging thrust of said forging saddle comprises a forked end piece forming the free end of the associated guiding arm, transverse flange means on said forging saddle, bearing surfaces on said forked end piece slidablysu porting said transverse flange means, a pro ection on sald orging saddle projecting into said forked end piece, means defining an internally threaded drilling in said projection, a screw threaded spindle engageably mounted in said forked end piece and engaging in said internally threaded drilling, a motor mounted on said guiding arm for driving said screw threaded spindle, and a straight gear mechanism drivingly connecting said motor and said screw threaded spindle whereby rotation of said screw threaded spindle by said motor causes said forging saddle to move transversely.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
US8242A 1969-02-20 1970-02-03 Forging machine Expired - Lifetime US3657916A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691908362 DE1908362A1 (de) 1969-02-20 1969-02-20 Schmiedemaschine mit verstellbaren Schmiedesaetteln

Publications (1)

Publication Number Publication Date
US3657916A true US3657916A (en) 1972-04-25

Family

ID=5725740

Family Applications (1)

Application Number Title Priority Date Filing Date
US8242A Expired - Lifetime US3657916A (en) 1969-02-20 1970-02-03 Forging machine

Country Status (4)

Country Link
US (1) US3657916A (enExample)
BE (1) BE745818A (enExample)
DE (1) DE1908362A1 (enExample)
FR (1) FR2031550A7 (enExample)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837209A (en) * 1972-12-04 1974-09-24 R Siegfried Forging machine
US3841125A (en) * 1972-02-18 1974-10-15 Sack Gmbh Maschf Control device with hydraulic synchronising control for forging machines
US4674171A (en) * 1984-04-20 1987-06-23 Lor, Inc. Heavy wall drill pipe and method of manufacture of heavy wall drill pipe
EP0228030A2 (de) 1986-01-02 1987-07-08 SMS Hasenclever GmbH Schmiedemaschine
US4771811A (en) * 1984-04-20 1988-09-20 Lor, Inc. Heavy wall drill pipe and method of manufacture of heavy wall drill pipe
EP0297312A1 (en) * 1987-07-03 1989-01-04 DANIELI & C. OFFICINE MECCANICHE S.p.A. Multipurpose swaging machine
US4813263A (en) * 1986-09-16 1989-03-21 Sms Hasenclever Maschinenfabrik Gmbh Forging machine
US4831864A (en) * 1986-01-02 1989-05-23 Sms Hasenclever Machinenfabrik Gmbh Forging machine
US5000026A (en) * 1988-01-07 1991-03-19 Pahnke Engineering Gmbh & Co. Kg. Long forging machine for the forging of round or sharp-edged bars
EP0428940A3 (en) * 1989-11-24 1991-09-25 Danieli & C. Officine Meccaniche S.P.A. Simplified hydraulic forging machine
US5655402A (en) * 1993-12-16 1997-08-12 Schubert; Peter Forging machine
CN109731940A (zh) * 2019-03-03 2019-05-10 曹钧恩 一种成段铝合金的多种类造型装置的工作方法
CN109759469A (zh) * 2019-03-03 2019-05-17 曹钧恩 一种成段铝合金的多种类造型装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285709B (de) * 1965-03-18 1968-12-19 Betonwerk Wernau Gmbh & Co Kg Abstandhalter fuer Betonbewehrungen
AT368728B (de) * 1981-01-21 1982-11-10 Gfm Fertigungstechnik Schmiedemaschine
DE59100510D1 (de) * 1991-12-30 1993-11-25 Hasenclever Maschf Sms Schmiedemaschine.
ATE122942T1 (de) * 1993-12-16 1995-06-15 Hasenclever Maschf Sms Schmiedemaschine.
AT404441B (de) * 1996-09-17 1998-11-25 Gfm Holding Ag Schmiedemaschine
DE102017214961B4 (de) * 2017-03-22 2021-06-10 Sms Group Gmbh Radial-Schmiedeanlage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1437024A (en) * 1920-12-11 1922-11-28 Schull Leopold Press
US1480077A (en) * 1920-02-13 1924-01-08 Edward E Johnson Die-forging machine
DE449558C (de) * 1926-05-07 1927-09-15 Johannes Ingrisch Dipl Ing Presse zur Verdichtung oder Querschnittsaenderung von Koerpern aus Metall oder anderen Stoffen
US3263478A (en) * 1962-10-12 1966-08-02 Kieserling & Albrecht Forging machines
US3451249A (en) * 1966-10-10 1969-06-24 Wilfred J Sharon Forming machine
US3453914A (en) * 1966-04-21 1969-07-08 Mesta Machine Co Force-multiplying mechanisms
US3478565A (en) * 1966-09-30 1969-11-18 Sack Gmbh Maschf Forging machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1480077A (en) * 1920-02-13 1924-01-08 Edward E Johnson Die-forging machine
US1437024A (en) * 1920-12-11 1922-11-28 Schull Leopold Press
DE449558C (de) * 1926-05-07 1927-09-15 Johannes Ingrisch Dipl Ing Presse zur Verdichtung oder Querschnittsaenderung von Koerpern aus Metall oder anderen Stoffen
US3263478A (en) * 1962-10-12 1966-08-02 Kieserling & Albrecht Forging machines
US3453914A (en) * 1966-04-21 1969-07-08 Mesta Machine Co Force-multiplying mechanisms
US3478565A (en) * 1966-09-30 1969-11-18 Sack Gmbh Maschf Forging machine
US3451249A (en) * 1966-10-10 1969-06-24 Wilfred J Sharon Forming machine

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841125A (en) * 1972-02-18 1974-10-15 Sack Gmbh Maschf Control device with hydraulic synchronising control for forging machines
US3837209A (en) * 1972-12-04 1974-09-24 R Siegfried Forging machine
US4771811A (en) * 1984-04-20 1988-09-20 Lor, Inc. Heavy wall drill pipe and method of manufacture of heavy wall drill pipe
US4674171A (en) * 1984-04-20 1987-06-23 Lor, Inc. Heavy wall drill pipe and method of manufacture of heavy wall drill pipe
US4831864A (en) * 1986-01-02 1989-05-23 Sms Hasenclever Machinenfabrik Gmbh Forging machine
US4796456A (en) * 1986-01-02 1989-01-10 Sms Hasenclever Maschinenfabrik Gmbh Forging machine
EP0228030A2 (de) 1986-01-02 1987-07-08 SMS Hasenclever GmbH Schmiedemaschine
US4813263A (en) * 1986-09-16 1989-03-21 Sms Hasenclever Maschinenfabrik Gmbh Forging machine
EP0297312A1 (en) * 1987-07-03 1989-01-04 DANIELI & C. OFFICINE MECCANICHE S.p.A. Multipurpose swaging machine
US4879893A (en) * 1987-07-03 1989-11-14 Danieli & C. Officine Mecchaniche Spa Multipurpose swaging machine
US5000026A (en) * 1988-01-07 1991-03-19 Pahnke Engineering Gmbh & Co. Kg. Long forging machine for the forging of round or sharp-edged bars
EP0428940A3 (en) * 1989-11-24 1991-09-25 Danieli & C. Officine Meccaniche S.P.A. Simplified hydraulic forging machine
US5655402A (en) * 1993-12-16 1997-08-12 Schubert; Peter Forging machine
CN109731940A (zh) * 2019-03-03 2019-05-10 曹钧恩 一种成段铝合金的多种类造型装置的工作方法
CN109759469A (zh) * 2019-03-03 2019-05-17 曹钧恩 一种成段铝合金的多种类造型装置
CN109731940B (zh) * 2019-03-03 2020-11-27 睢宁县瑞歆金属制品有限公司 一种成段铝合金的多种类造型装置的工作方法
CN109759469B (zh) * 2019-03-03 2020-12-18 太仓力山机械设备有限公司 一种成段铝合金的多种类造型装置

Also Published As

Publication number Publication date
DE1908362A1 (de) 1970-09-10
FR2031550A7 (enExample) 1970-11-20
BE745818A (fr) 1970-07-16

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