US2257546A - Self-propelled machine for handling forgings - Google Patents

Self-propelled machine for handling forgings Download PDF

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Publication number
US2257546A
US2257546A US240764A US24076438A US2257546A US 2257546 A US2257546 A US 2257546A US 240764 A US240764 A US 240764A US 24076438 A US24076438 A US 24076438A US 2257546 A US2257546 A US 2257546A
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United States
Prior art keywords
levers
tongs
frame
self
machine
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Expired - Lifetime
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US240764A
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English (en)
Inventor
Dienenthal Herbert
Zimmermann Theo
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Individual
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Individual
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Publication of US2257546A publication Critical patent/US2257546A/en
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    • 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
    • B21J13/08—Accessories for handling work or tools
    • B21J13/10—Manipulators

Definitions

  • Self-propelling machines for holding and turning heavy work to be forged are known in which a device which carries the tongs for holding the work comprises a number of parts which are able, to make angular movements relatively one to another, and pressure or tension springs, which are fitted between these parts take up the additional load which occurs during forging.
  • a device which carries the tongs behaves as if it were almost entirely rigid since the springs are too short to act as effective buffers.
  • advantage is that in the known machine the carrier for the tongs is supported by-twolifting cylinders which act independently. It is then impossible to prevent the movements of 'the lifting cylinders differing somewhat from one another, the result of whichis that the carrier does not maintain a horizontal position as is desired when forging.
  • the object of the present invention is to provide an'apparatusof the kind described in which the aforesaid disadvantages are" ob-- viated.
  • the carrier for the tongs is resiliently suspended from four points on a linkage whichis actuated by-a single lifting cylinder.
  • a pair of bell-crank levers is pivoted at each, side to the "frame of the machine, and the levers of each pair are linked together by a bar connected to the end of one arm of each of the levers while tothe ends of the other armsof the four levers are pivoted four upright rods whichcarry long helical springs on which the carrier for the tongs is supported.
  • the carrier is therefore able to makelongitudinal movements and can yieldunder the load which occurs owing to extension during forging while the vertical supporting springs can swing about the pivots on which the rods which support them are mounted.
  • FIG. 1 is a side elevation of the machine
  • Figure 2 shows the central portion of the machine with the carrier for the tongs displaced
  • Figure 3 shows three sections on the lines AB and CD of Figure 2 respectively
  • Figure 4 is a broken-off the 1ine AA of Figure 5, and
  • Figure 5 is a broken-off horizontal section on line 3-3 of Figure 4.
  • the frame I of the self-propelled machine is supported on wheels 2, 3, of which the steering wheel 2 isldriven by a
  • the driving gear of the vehicle has two separate controls.
  • the motor is controlled by means. of a controlling drum.
  • the machine can be intermittently moved for- Wards or backwards by foot-actuated pedals in accordance with the feed necessary during forging.
  • pivots 5 and 6 at each longitudinal side of theframe vl are pivotally mounted bell-crank levers 1, 8 which are connected transversely in pairs by pivot bars 9, l0 respectively, and longitudinally in pairs by rods II.
  • a lifting cylinder l2 in the centre of the machine acts on the pivot bar I 0.
  • the lifting cylinder ( Figures 4 and 5) is supported through trunnion pins c by. brackets d carried by a transverse plate e which is secured at each end to frame I.
  • Piston ,f carries piston rod a which is securedto pivot bar II).
  • the cylinder On each side of the piston, the cylinder is in communication through pipes g, h and suitable valves with a source of fluid under pressure, whereby the ,piston may be reciprocated to rock bell-crank levers 8 and, through rods H, levers 1.
  • the cylinder rocks in response to changes in elevation of bar Ill.
  • the other ends of the levers carry, on pivots l3, [4, long vertical bolts l5 and I6 around which are disposed helical springs I1 and IS on which 7 supporting arms 19, 20 for the member 2
  • the helical springs act, through the agency of the bushes 30, 3
  • the actual tongs 33 for holding the work to be forged are revolubly mounted the carrier 2
  • a self-propelled machine for holding and moving heavy work to be forged, comprising a wheeled frame, means for propelling the frame,
  • the machine may run without rails or; may be constructed as a rail vehicle.
  • a self-propelled machine for holding and moving heavy Work to be forged comprising a Wheeled frame, means for propelling the frame, a tongsfor holding the Work, apair, of "belle crank levers pivotally mounted at either side of said frame, aibar pivotedjto one arm ofgeach' lever of each pair of said levers, upright rods pivoted to the other arms .of said levers, helical springs disposed around said rods, a tongs-care rying member supported by said helical springs, and a single lifting cylinder by which said bellcrank levers can be turned about their pivots 2.
  • a self-propelled, machine forholding and moving heavy work to be forged comprising a wheeled frame, means for propelling the frame, a tongs for holding the work, apair of bell crank levers pivotally mounted at either side of said frame, a bar pivoted to one arm of each lever of each pair of said levers, upright rods pivoted to the. other arms of said levers,- helical; springs disposed around said rods, members sup-.
  • a self-propelled machine for. holding' a nd a tongs for holding the work, a pair of bellcrank levers pivotally mounted at either side of said frame, a bar pivoted to one arm of each lever of each pair of said levers, upright rods pivoted to the other arms of said levers, helical springs disposed around said rods, a tongs-carrying member supported by said helical springs, a buffer frame connected to one arm of each lever of each pair of said levers, resilient means whereby said buffer frame is normally held ina central position and a single lifting cylinder by which said bell-crank levers can be turned about their pivots.
  • a self-propelled machine for holding and moving heavy work to be forged comprising a wheeled frame, means for propelling the frame,
  • a tongs for holding the work, a pair of bellcrank leverspivotally mounted at either side of said frame, a bar-pivoted to one arm of each lever of each pair of levers, upright rods pivoted to the other arms of said levers, helical springs disposed around said rodsya tongs-carrying member supported by said helical springs, a buffer frame connected to one arm of each lever of each pair of said 'levers,helical springs parallel to the axis of the tongs-carrying member whereby saidbufier frame is held in a central position and a single lifting cylinder by which said bell-crank levers can be turned about their pivots.
  • a self-propelled machine for holding and movingheavy work to beforged comprising a wheeled frame, means for propelling the frame, a tongs for holding the work, a pair of bellcrank levers pivotally mounted at either side of said frame, a bar pivoted to one arm of'each lever of each pair of said levers, upright rods pivoted to the other arms of said levers helical springs disposed around said rods, a tongs-care rying member supported by said helical springs,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
US240764A 1937-11-19 1938-11-16 Self-propelled machine for handling forgings Expired - Lifetime US2257546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1937D0076617 DE700524C (de) 1937-11-19 1937-11-19 Selbstfahrende Vorrichtung zum Halten und Wenden schwerer Schmiedestuecke

Publications (1)

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US2257546A true US2257546A (en) 1941-09-30

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US240764A Expired - Lifetime US2257546A (en) 1937-11-19 1938-11-16 Self-propelled machine for handling forgings

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US (1) US2257546A (de)
DE (1) DE700524C (de)
FR (1) FR845256A (de)
GB (1) GB511734A (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417000A (en) * 1944-11-20 1947-03-04 Socony Vacuum Oil Co Inc Means for supporting and carrying filter elements
US2720800A (en) * 1950-11-30 1955-10-18 Wellman Smith Owen Eng Co Ltd Forging manipulator
US2792954A (en) * 1953-05-15 1957-05-21 Vulcan Res Corp Material handling device
US2812090A (en) * 1953-05-08 1957-11-05 Vulcan Res Corp Industrial truck mounted material handling and manipulating device
US2813291A (en) * 1955-08-23 1957-11-19 Marian E Wark Cleaning apparatus
US2864271A (en) * 1953-02-11 1958-12-16 Kendall Edgar Homer Forging manipulator
US3126770A (en) * 1964-03-31 Forge tongs
US3129616A (en) * 1962-03-01 1964-04-21 Morgan Engineering Co Peel control
US3270546A (en) * 1959-12-28 1966-09-06 Hydraulik Gmbh Drives for forge tongs
US3427853A (en) * 1965-12-06 1969-02-18 British Iron Steel Research Apparatus to avoid bending during forging
US3429455A (en) * 1965-04-01 1969-02-25 Davy & United Eng Co Ltd Manipulators
DE1752848A1 (de) * 1968-07-25 1971-04-08 Dango & Dienenthal Kg Fahrbarer Schmiedemanipulator
DE1777469B1 (de) * 1968-07-25 1980-01-03 Dango & Dienenthal Kg Fahrbarer Schmiedemanipulator
US4815311A (en) * 1986-07-31 1989-03-28 Sms Hasenclever Maschinenfabrik Gmbh Forging manipulator
US9517673B2 (en) * 2014-07-18 2016-12-13 GM Global Technology Operations LLC Vehicle and a suspension system for the vehicle

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2345572A (en) * 1940-09-23 1944-04-04 Edgar E Brosius Manipulator
DE970205C (de) * 1944-08-24 1958-08-28 Hydraulik G M B H Einspannvorrichtung fuer Schmiedemanipulatoren
DE972409C (de) * 1949-03-18 1959-07-16 Theodor Dr Wuppermann Fahrbare Schmiedezange
DE970262C (de) * 1949-03-18 1958-09-04 Theodor Wuppermann Dr Fahrbare Schmiedezange
DE915770C (de) * 1950-11-30 1954-07-29 Wellman Smith Owen Eng Co Ltd Vorrichtung zum Zubringen, Halten und Wenden von Schmiedestuecken
DE1004895B (de) * 1952-01-23 1957-03-21 Dr Theodor Wuppermann Einrichtung zum Freiformschmieden von Kesseln, dickwandigen Rohren od. ae. schweren Hohlkoerpern
DE1110993B (de) * 1953-05-08 1961-07-13 Vulcan Res Corp Fahrbarer Schmiedemanipulator
DE1088784B (de) * 1958-11-25 1960-09-08 Dango & Dienenthal Kommandit G Schmiedemanipulator mit axial federnder Blockzange
CN107262651A (zh) * 2017-07-26 2017-10-20 乐清市首智电子有限公司 一种锻压夹持装置以及锻压设备

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126770A (en) * 1964-03-31 Forge tongs
US2417000A (en) * 1944-11-20 1947-03-04 Socony Vacuum Oil Co Inc Means for supporting and carrying filter elements
US2720800A (en) * 1950-11-30 1955-10-18 Wellman Smith Owen Eng Co Ltd Forging manipulator
US2864271A (en) * 1953-02-11 1958-12-16 Kendall Edgar Homer Forging manipulator
US2812090A (en) * 1953-05-08 1957-11-05 Vulcan Res Corp Industrial truck mounted material handling and manipulating device
US2792954A (en) * 1953-05-15 1957-05-21 Vulcan Res Corp Material handling device
US2813291A (en) * 1955-08-23 1957-11-19 Marian E Wark Cleaning apparatus
US3270546A (en) * 1959-12-28 1966-09-06 Hydraulik Gmbh Drives for forge tongs
US3129616A (en) * 1962-03-01 1964-04-21 Morgan Engineering Co Peel control
US3429455A (en) * 1965-04-01 1969-02-25 Davy & United Eng Co Ltd Manipulators
US3427853A (en) * 1965-12-06 1969-02-18 British Iron Steel Research Apparatus to avoid bending during forging
DE1752848A1 (de) * 1968-07-25 1971-04-08 Dango & Dienenthal Kg Fahrbarer Schmiedemanipulator
DE1777469B1 (de) * 1968-07-25 1980-01-03 Dango & Dienenthal Kg Fahrbarer Schmiedemanipulator
US4815311A (en) * 1986-07-31 1989-03-28 Sms Hasenclever Maschinenfabrik Gmbh Forging manipulator
US9517673B2 (en) * 2014-07-18 2016-12-13 GM Global Technology Operations LLC Vehicle and a suspension system for the vehicle

Also Published As

Publication number Publication date
FR845256A (fr) 1939-08-17
GB511734A (en) 1939-08-23
DE700524C (de) 1940-12-21

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