US3824833A - Forging press - Google Patents

Forging press Download PDF

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Publication number
US3824833A
US3824833A US00330194A US33019473A US3824833A US 3824833 A US3824833 A US 3824833A US 00330194 A US00330194 A US 00330194A US 33019473 A US33019473 A US 33019473A US 3824833 A US3824833 A US 3824833A
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Prior art keywords
grippers
working space
handling lever
table plate
situated
Prior art date
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Expired - Lifetime
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US00330194A
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English (en)
Inventor
H Bachmann
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Langenstein and Schemann GmbH
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Langenstein and Schemann 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
Priority claimed from DE19722205608 external-priority patent/DE2205608A1/de
Priority claimed from DE19722205607 external-priority patent/DE2205607C3/de
Application filed by Langenstein and Schemann GmbH filed Critical Langenstein and Schemann GmbH
Application granted granted Critical
Publication of US3824833A publication Critical patent/US3824833A/en
Assigned to LANGENSTEIN & SCHEMANN GMBH reassignment LANGENSTEIN & SCHEMANN GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JAN. 4, 1983. Assignors: LANGENSTEIN & SCHEMANN AKTIENGESELLSCHAFT
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
    • B21K27/02—Feeding devices for rods, wire, or strips
    • B21K27/04—Feeding devices for rods, wire, or strips allowing successive working steps
    • 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

  • the invention relates to a forging press conprising a press frame, at least one die, a table plate and a work ing space.
  • the invention provides a forging press comprising a handling system, in which press several dies are arranged on a stationary rectangular table plate which is situated on a press frame and opposite to a single ram or hammer and above which is present a working space, with two opposite sidesof the table plate being clear of the press frame so that a workpiece can be passed through the working space, the handling system including a pair of pincers or grippers arranged on one extremity of a handling arm, another extremity of which is situated outside the working space, with 1 said one extremity being movable into or out of the working space and above the dies.
  • the dies are arranged on a straight line which is parallel to a central horizontal axis of the press and extends in the direction in which the workpiece passes through the working space.
  • the grippers are equally displaceare situated at a relatively great distance from the center of the table plate.
  • the dies should be situated as close to the center of the press however, to minimize tilting of the ram during the deforming operation. This is of importance because ever greater workpiece precision is required in processing technology ln the case of hand-fed presses it is customary, therefore, to position the dies as close as possible to the center of the press. The pattern of the dies is then irregular. a v
  • a variety of forging presses comprising handling systems incorporating pincers or grippers are known.
  • the manner in which the systems employed for actuation and displacement of the pincers or grippers or of banable along a straight line and merely serve for conveying a workpiece from the outside of theworking space dling levers carrying the pincers or grippers are to be devised is thus known in principle moreover.
  • OBJECTS AND SUMMARY OF THE INVENTION table plate and allows a workpiece to be passed through the working space, and in which press the table plate may beutilized in optimum manner, on the one hand, meaning that a maximum proportion of the table surface may be covered by dies and in which the dies are situated as close as possible to the center of the press, and on the other hand, the workpiece may be passed through the working space entirely by means of the handling system.
  • the handling system should not impede accessto the dies, and conjointly with its entraining mechanisms, it should be arranged independently of the press and as far as possible outside the working space, i.e., the deforming space.
  • the invention provides a forging press wherein a pivot spindle aroundwhich the handling lever is pivotable, is arranged vertically outside the working space beside the imaginary extension of the working space, with the dies concomitantly being positioned along an are about the pivot spindle and the straight line connecting two of the dies in each case s'ubtendin'g an angle with the twohorizontal axes of the press, and at the other side of the table plate from the aforesaid pivot spindle, a second pivot spindle aroung which a second handling lever bearing grippers is pivot-
  • each of the grippers may not only be pivoted into and out of the working space for infeed or removal of a workpiece, but is also displaceable within the working space over at least two dies.
  • Each of the grippers penetrates into the working space at the side of the latter which is opposed to the pivot spindle of the handling lever and may be displaced up to close to the side of the working space which is adjacent to the pivot spindle, with the pivot spindle as well as the entraining mechanisms being situated as close to the press frame as possible but not in front of the working space.
  • one of the two grippers, or one of the handling levers is employed to feed a workpiece into the working space, and the other gripper or the other handling lever is employed to withdraw the workpiece after deformation.
  • the invention renders it possible to position three or more dies particularly close to the center of the press, e.g., three dies forming a triangle being incorporated.
  • the transfer of the workpiece from one of the grippers into or to the other occurs at the point of intersection of the arcuate trajectories of the two grippers, which may coincide at the center of one least one die arranged on a table plate above which is present a working space, is situated opposite to a ram in a press frame, and pincers or grippers di splaceable above the die and away from the latter arearranged on one extremity of a handling lever.
  • the handling lever merely serves the purpose of carrying a blank relatively short workpiece into the working space and to a first die the blank workpiece being relatively short. If the handling lever is employed to convey a relatively long workpiece from one die to the next or out of the working space, the long workpiece should initially be moved out of the die in an upward direction, in a lengthwise direction.
  • ejector rod in a commonly known manner, which rod is arranged beneath the table plate together with a hydraulic ejection system andejects the workpiece from the die in the v upward direction.
  • the ejector rod or the hydraulic ejection system should be of appropriate length such. that the forging press has considerable structural depth below the table plate. It is an object of the invention to devisea forging press wherein a long workpiece may not only be conveyed by means of the handling system towards and away from the die but also out of the die, so that a reduction in the overall height of the forging press may be obtained.
  • the invention provides a forging press wherein the handling lever is upwardly and downwardly di'splaceable and can be releasably cou pled to the ram.
  • the grippers grasp a projecting portion of a long workpiece which is preponderantly inserted'into the die. After the deformation it hasundergone within the die, the workpiece may either still project a little in an upward direction, or it may have been pushed upwards through a short distance after the deforming action, by means of a short ejector rod. Once the grippers have secured a grip on the workpiece, the handling lever is coupled to the lowered ram The releasable coupling of the handling lever may be performed in different ways.
  • a catch plunger co-ordinated with the 'die and comprising an approximately horizontal detent step to be arranged to project in downward direction on the ram, and for a pivotable'pawl which may be positioned over the detent step when the ram is lowered and the grippers are positioned above the die, to be arranged on the handling lever.
  • One catch plunger is arranged on the ram for each die from which a long tightly fitting workpiece is to be withdrawn.
  • the displaceability in the upward and downward direction of the handling lever whichis always displaced parallel to itself while being moved up and down, may also be established in appropriate manner according to requirements. It is particularly appropriate, however, for the extremity of the handling lever opposed to that of the grippers to be displaceable upwards and downwards outside the working space, along a stay which rotatable around a central vertical axis.
  • the mechanisms for thepivoting of the rod may be stationarily arranged, so that they do not which is then moved upwards, thereby drawing the work-piece out of the die.
  • the handling lever is then disconnected from the ram, so that the workpiece may be handled, i.e., displaced by means of the handling lever. Forces occurring uponwithdrawal of the workpiece do not produce bending stresses along the length of the handling lever.
  • connection between the grippers or handling lever and the ram is advantageous in the case of particularly long workpieces which are jammed very firmly in the die after deformation, because it precludes considerable structural complexity in the press.
  • Several ejector bars are required moreover, if several dies are arranged within the press platform or table plate, in the case of known presses.
  • the ejector bars are supported on an ejector stage which is arranged below-the table plate and is moved up and down by means of a subjacent ejector cylinder.
  • the structural length of the press frame below the press table wouldbecome particularly great as a consequence of the relatively long ejection path.
  • the foundations would, moreover, have to have recesses of corresponding depth in view of the downwardly projecting ejector cylinder. All this may be eliminated by the invention.
  • the stay itself is rotatably journalled, to allow of turning the handling lever.
  • the upward and downward displacement of the handling'lever is performed by means of a hydraulic system, for example.
  • FIG. 1 shows a horizontal cross-section through a vertical forging press
  • FIG. 2 shows a side view of part of the forging press shown inFIG. l;
  • FIG. 3 shows a plan view of handling lever and per of the forging press shown in FIG. .1;
  • FIG. 4 shows a diagrammatic plan view of another forging press
  • FIG. 5 shows a partially sectioned plan view of another forging press
  • FIG. 6 shows a side view of the forging press shown in FIG. 5;
  • FIG. 7 shows a side view of a mechanism for releasable connection of the handling arm or lever or of the grippers arranged thereon to a ram of the press shown in FIG. 5.
  • the forging press shown in FIG. 1 comprises a table plate or press plate 1, whichis stationarily arranged, i.e., the table plate 1 is not displaced for the purpose of repositioning a workpiece.
  • the table plate 1 is approximately rectangular, with each of the shorter sides having a length greater than three-quarters of the length of each of the longer sides.
  • Two spaced columns 2 of a press frame are arranged at opposite sides of the table plate 1.
  • the columns 2 comprise guiding bars 3 for a ram or press carriage (not shown in FIG. 1), which can be moved up and down above the table plate 1.
  • each of the pivot spindles 7,7 can be turned a handling lever 9,9 which bears a pair of grippers 10,10 at its free extremity.
  • the centers of the grippers 10,10' are displaceable' along an arc 11,11 about the pivot spindles 7,7.
  • Thetwo arcs 11, 11 intersect each other on the press axis 5 at a distance from the center of the table plate 1.
  • FIG. 1 shows the grippers 10 outside the working space in dash-dotted illustrated 10".
  • Each pair of grippers has two movable jaws 12,13 and a piston-cylinder system 14 for actuation of the jaws.
  • the centers of four deforming stations are situated on the arcs11,11.
  • the front handling lever 9' carries a workpiece from the outside, into the working space 4 and to a first deforming station 15 which is situated close to the edge of the table plate 1.
  • the front handling lever 9 also carries the workpiece from the first deforming station, at which is situated, for example, a rough-forming tool, to a second deforming station 16, at which is situated, for example a roughing mandrel tool, and from the latter to a third deforming station 17, at which is situated, for example an extrusion molding tool.
  • Therear handling lever 9 carries the workpiece from the third deforming station 17 to a fourth deforming station 18 at which is situated, for example a sizing tool, and from the latter to the working space.
  • One of the impingement points consists of a single hydraulic damper 32, whereas the others consist of a piston-cylinder system 33 comrpising hydraulic dampers.
  • Four impingement points formed by hydraulic dampers on piston-cylinder systems 34,35 are informed by means of a piston-cylinder system 23 (see FIG. 2) which acts on the one hand-on a stationary block 24 and on'the other hand on -a projection 25 joined to the handling lever close to the pivot spindle -7.
  • the handling lever 9 is installed'at the bottom on a cylindrical unit 26 which may be displaced up and down on two vertical spaced rods '27.
  • Eachrod 27 is secured at the top and bottom in a circularplate which is not shown.
  • One of the circular plates is rotatably arranged at the top in the block 24, and the other circular plate is arranged in a block 28.
  • the position of the two blocks 24, 28 is apparent from 'FIG. 2.
  • Beneath the lower block 28 is situated a piston-cylinder system 29 whereof the piston rod, not illustrated, projects upwards through the lower block 28 for pushing the handling lever 9' upwards.
  • the front handling lever 9 comprising the grippers 10', but not the rear handling lever 9, is shown in FIG. 2.
  • a ram 30 whereof the underside carries upper tools 31 situated at the deforming stations referred to above. Lower tools are fastened on thetable plate 1 at the deforming stations.
  • Beneath the table plate 1 is situated an ejector mechanism which is known per se and not shown in detail, which mechanism comprises ejector rods whereby it is possible to lifta workpiece at least so far out of the die at each deforming station, that the grippers can secure a grip. Since the grippers may be moved up and down, even very long workpieces may be withdrawn upwards from the dies while gripped by the grippers.
  • both jaws 12, 13 of the grippers 10 or pincers are displaceably arranged. Displacement of the jaws 12,13 is performed by means of a pistoncylinder system 14 which is situated in the handling lever 9 or in the grippers 10.
  • the system whereby the piston-cylinder system 14 and the jaws 12,13 cooperate, is illustrated in detail in FIG. 2..
  • the forging presses shown in FIG. 4 and 1 have a bent handling lever at the front as well as at the rear.
  • the rear handling lever 9 is constructed and arranged symmetrically with respect to the front handling lever 9.
  • the pivot spindles 7,7 are precisely aligned opposite to each other and the grippers 10,10 are precisely aligned opposite to each other for identical positioning of the handling levers.
  • a deforming station 18 for a trimming operation On the other are 11 are situated a deforming station 18 for a trimming operation, a deforming station 19 for a first extrusion molding operation, a deforming station 20 for a second extrusion molding operation, and the transfer station 21.
  • the two deforming station 15 and 18 are a relatively great distance from the center of the table plate, whereas the other deforming stations are situated as close as possible to the center of the table plate and have their centers situated on a common circle 22, with the center of the transfer station 21 being situated at the center of the table plate.
  • the front grippers 10 carry the workpiece into the working space 4 to the first deforming station 15, from the latter while by passing the third deforming station 17 and the transfer station 21 to the second deforming station 16, from the latter to the third deforming station 17 and then to the transfer station 21.
  • the transfer station 21 is situated at the point of intersection of the arcs 11,11 and is utilized for a deforming operation as well as for the transfer of the workpiece from the front infeed grippers to the rear grippers 10'.
  • the latter remove the workpiece from the transfer station 21 and carry the same to the fourth deforming station 19, from the latter and while bypassing the transfer station 21, to the fifth deforming station 20. From the latter, the workpiece is carried to the sixth deforming station 18 and from this latter out of the working space 4 to an extraction station.
  • the forging press shown in FIG. 5- comprises a table plate or press plate 101, which is stationarily arranged, i.e., the table plate 101 is not'moved for re-positioning a workpiece.
  • the table plate 101 is approximately rectangular, each of the shorter sides having a length greater than three-quarters of the length of each of the longer sides.
  • Two columns 102 of a press frame are situated on opposite sides of the table plate 101.
  • the columns 102 comprise guiding bars 103 for a ram 131 or press carriage shown in FIG. 6, which can be moved up and down above the table plate.
  • the two sides of the table plate 101 which extend at right angles to the sides occupied by the columns102 are unobstructed, i.e., are clear of the press frame, so that a workpiece can be passed through a working space 104 present above the table plate 101.
  • Two press axes 105,106 which intersect at the center of the table plate and extend at right angles to each other may be allocated to the press as a whole.
  • a heated blank workpiece 108 may be carried into the working space 104, i.e., on to the table plate 101 and thereon to a first deforming'station 109,1at which the blank workpiece is subjected to arough forming operation.
  • the blank workpiece 108 is then carried from the first'deforming station 109 to a second deforming station 110 at which is situated a die wherein an extrusion molding operation is performed.
  • a handling lever 113 comprising grippers 114.
  • the centers of the second deforming station 110, the third deforming station 111 and the distributing station 112 are situated on a common are 115 along which the grippers 114 are displaceable. So that the grippers 114 may carry the workpiece away from the second deforming station or third deforming station, said workpiece is pulled upwards out of the dies situated at these deforming stations. To this end, it is pushed upwards a little by means of a short ejector (not shown) situated beneath the table plate 101.
  • the are 115 extends around a vertical pivot spindle 116 which is situated in front of the press frame, beside the imaginary extension of the working space 104 shown by dashdotted lines 117, and beside one of the columns 102, that is to say not within-the imaginary extension 117 of the working space.
  • the extremity of the handling lever 113 opposite to that of the grippers 114 is pivotably journalled around the pivot spindle 116.
  • the pivoting lever 113 has a bend 118 so that it enflanks the column 102 beside which is situated the pivot spindle 116, when the grippers 114' have been pivoted completely intothe working space 104. It is apparent that if the handling lever were straight, it would not be possible to pivot the grippers as far into the working space and that the handling lever would have to be shorter than in the case of a bent handling lever, for displacement into and out of the working space.
  • the turning of the handling lever l 13 is performed by means of a piston-cylinder system 119 which acts through joints on a block 120 on the one hand, and on a projection 121 joined to the handling lever close to the pivot spindle 116, on the other hand.
  • the grippers 114 comprise a jaw 122 rigidly joined to the handling lever 113, and a jaw 123 articulated on the handling lever 114.
  • the displacement of these jaws 123 is performed by means of mechanisms not shown in detail, which are situated in the grippers 114 and/or in the handling lever 113.
  • a stop 124 is provided, which determines the position at which the handling lever has been fully inserted by pivoting into the working space.
  • the handling lever 113 is employed to feed the blank workpiece 108 to the first deforming station 109 which, for this purpose, is situated close to the front edge of thetable plate 101 and whereof the center is situated on the are described by the grippers 114.
  • the first deforming station at which a rough forming operation only is performed may be situated at a relatively great distance from the press center, i.e., from the point of intersection of the press axes 105, 106, since no particular precision is'required during the rough forming operation and no great forces are applied.
  • FIG. 6 shows further details'of the handling system shown in FIG. 5.
  • the handling lever 133 is arranged at the bottom on a cylindrical unit 126 which may be displacedup and down on two vertical spaced rods 127.
  • the rods 127 are secured at the top and bottom in a circular plate in each case, which is not shown.
  • One of the cirular plates is rotatably journalled in the block and the other circular plate is arranged in another block 128.
  • the position of the two blocks 120,128 is apparent from FIG. 6.
  • Beneath the lower block 128 is situated a piston-cylinder system 129 whereof the piston rod, which is not shown, projects upwards through the lower block 128 and upwardly displaces the bandling lever 113 upon being extended.
  • a blank workpiece 108' is laid on a pivotable plate 130 which is then turned clockwise through approximately 120 so that the blank workpiece reaches the distributing station 112. At the latter, it is grasped by the grippers 114 situated on the bandling lever which concomitantly occupies the position 113'.
  • the blank workpiece is then carried to the first deforming station in the working space 104, at which it is deformed, e.g. upset, by lowering the ram 131 which carries upper tools, after the grippers have been pivoted out of the working space.
  • the ram 131 is then moved upwards again, so that the workpiece may be carried from the first deforming station 109 to the second deforming station 110 by means of the grippers 114.
  • the ram is lowered and deforms the workpiece at the second deforming station by an extrusion molding operation.
  • the grippers carry the extrusion-molded workpiece from the second deforming station 110 to the third deforming station 111 and are then pivoted out of the working space.
  • the ram then moves downwards, again, therebyfinish-pressing the workpiece, and subsequently moves upwards again.
  • the grippers may then carry the finished workpiece from the third deforming station 111 out of the working space, to the distributing station 112 and on to the plate 130 on which it is conveyed further by rotation through 120.
  • the grippers 114 are to convey the workpieces which had been deformed in the second deforming station 110 or in the third deforming station 111, the
  • a shackle 132 whereon a projection 133 is pivotable around a horizontal axis, is arranged on the grippers 114.
  • a piston-cylinder system 134 has one extremity jointedly coupledto theprojection 133 and the other jointedly coupled to the handling lever 113 and may displace the projectionback and forth between a position in which it points vertically upwards and a position in which itis horizontal.
  • a catch plunger 135 which comprises a detent step 136 and projects downwards, is situatedon the ram 131.
  • the catch plunger 135 or the ram maybe moved downwards in such manner that the projection may be pivoted into the horizontal position over the detent step 136.
  • the ram 131 is then moved upwards, it pulls the grippers 114 upwardslt is also possible on the other hand, to pivot the grippers 114 into the working space, for horizontal setting of the projection 133 and a position of such nature of the catch plunger 135 or of the detent step 136, that the projection is pushed overthe detent step upon being pivoted inwards.
  • the catch plunger 135 is arranged in each case on the ram beside an upper tool which is co-ordinated with a die for production of long workpieces.
  • a catch plunger is coordinated only with the deforming station 110, since a greater tractive force can be expected only upon withdrawal of the xtrusion-molded part.
  • the finishpressed workpiece may be pulled out of the deforming station 111 bythe handling lever itself.
  • the piston-cylinder system 134 acts an an overload safety device moreover. if a predetermined permissible force is exceeded, e. g. during extraction, the projection 133 is displaced upwards against the resistance of the piston-cylinder system 134 and is thus freed automati: cally from the ram 131.
  • the permissible force may be set in an infinitely variable manner by means of hydraulic setting elements. A description of the functional sequence for the extraction of long workpieces by means of the handling grippers in combination with the ram is given below.
  • the extrusionmolding operation is initiated.
  • the ram concomitantly moves downwards rapidly, performs the pressing action and moves upwards through a definite stroke distance.
  • the ejector situated beneath the table 101 pushes the piece upwards by the corresponding stroke length.
  • the grippers are then pivoted from position 112 to position 110 at which they are coupled with the ram.
  • the ram moves to its upper terminal position and concomitantly wholly pulls the workpiece held in the handling grippers out of the lower extrusion-molding die.
  • the grippers When the ram has reached its upper position, the grippers are uncoupled from the ram again, are pivoted over the die 111 and insert the workpiece into the die 111 into which the grippers are lowered. The grippers are thereupon pivoted to position 112 again and the finish-pressing operation is performed. After the finishpressing operation, i.e., after the ram has reached its upper terminal position again and the workpiece has been pushed partially out of the lower die by the ejector, the grippers are pivoted over the. die 111 again and pull the finish-forged part wholly out of the die without coupling .with the ram, and carry the same to the distributing station 112.
  • a forging press comprising a press frame; a table plate; a ram above the table plate; the ram and the table plate defining aworking space therebetween; a die situated on the table plate; a handling lever; and grippers for holding a workpiece, the grippers being carried by an extremity of the handling lever and being movable over. and away from the die whereby a workpiece gripped by the grippers can be moved to a position over the die and forged between the die and the ram; the
  • the press further comprising: further dies situated on the table plate; a first vertical pivot spindle around which the handling lever is pivotable, the spindle being situated outside the working space and beside an imaginary extension of the working space, some of the dies being situated on an arc about the pivot spindle, above which are the grippers move when the handling lever is pivoted about the pivot spindle; a second vertical pivot spindle situated outside the working space and beside an imaginary extension of the working space, the second pivot spindle being adjacent the side of the table opposite the first pivot spindle; a second handling lever pivotable about the second pivot spindle; further grippers for holding a workpiece and carried by an extremity of the second handling lever, some of the dies being situated on an are about the second pivot spindle, above which are the further grippers move when the second handling lever is pivoted about the second pivot spindle, and the two said
  • a forging press provided with means for handling long workpieces, including a press frame; a table plate; a ram; an upper tool provided on the ram; a die situated on .the table plate opposite the upper tool and above which is a working space; a handling lever; and grippers which can be moved over and away from the die; said grippers being mounted at one end of the handling lever; a stay outside the working space; the end of the handling lever remote from the grippers being displaceable up and down outside the working space on the stay; a lifting device for displacing the end of the handling lever up and down; the upper tool and the die being situated at an extrusion molding station constituting one of several deforming stations and being designed to be suitable for extrusion molding; anda detachable mechanical connection provided between the handling lever and the ram in the working space at the extrusion molding station.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Manipulator (AREA)
US00330194A 1972-02-07 1973-02-07 Forging press Expired - Lifetime US3824833A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722205608 DE2205608A1 (de) 1972-02-07 1972-02-07 Schmiedepresse mit manipuliereinrichtung
DE19722205607 DE2205607C3 (de) 1972-02-07 1972-02-07 Schmiedepresse mit Manipuliereinrichtung für lange Werkstücke

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US3824833A true US3824833A (en) 1974-07-23

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US00330194A Expired - Lifetime US3824833A (en) 1972-02-07 1973-02-07 Forging press

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US (1) US3824833A (it)
JP (1) JPS571339B2 (it)
FR (1) FR2171268B1 (it)
GB (1) GB1409979A (it)
IT (1) IT978844B (it)

Cited By (14)

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US4044462A (en) * 1976-10-26 1977-08-30 General-Electro Mechanical Corporation Rivet blank feeder for riveting apparatus
US4311031A (en) * 1978-07-27 1982-01-19 Rigobert Schwarze Pipe bending machine
FR2498501A1 (fr) * 1981-01-27 1982-07-30 Maffre Jean Systeme de tetes de tournage commandees a distance, adaptable sur machine-outil a broche tournante
US4449390A (en) * 1980-12-29 1984-05-22 Teksid, S.P.A. Automatic unit for hot molding and trimming of metal parts
US4463587A (en) * 1981-04-28 1984-08-07 Eumuco Aktiengesellschaft Fur Maschinenbau Article handling assembly for forging presses having a spraying mechanism for cleaning, lubricating and cooling the press
US4481896A (en) * 1982-01-13 1984-11-13 Wembley Industries, Inc. Flexible material stacker
US4566306A (en) * 1983-03-17 1986-01-28 Yugengaisha Kyodogiken Method and apparatus for feeding materials to be pressed
WO2005011894A1 (en) * 2003-08-01 2005-02-10 Amafa Service Srl Device for transferring semifinished products on multistation presses
WO2005037460A1 (de) * 2003-09-19 2005-04-28 Langenstein & Schemann Gmbh Verfahren und vorrichtung zum umformen von werkstrüken
US20050092052A1 (en) * 2003-11-05 2005-05-05 Paul Stone Forging apparatus and conveyor for forming complex articles
US20060065036A1 (en) * 2004-07-23 2006-03-30 Frank Reissenweber Method and device for transferring a workpiece
CN102773396A (zh) * 2012-07-25 2012-11-14 攀钢集团攀枝花钢铁研究院有限公司 一种快锻机上砧块的快速更换装置及方法
CN103192023A (zh) * 2013-03-21 2013-07-10 宁波海星机械制造有限公司 多工位冷镦机机械手传动机构
CN103433389A (zh) * 2013-09-10 2013-12-11 聊城市金帝保持器厂 一种轴承保持器压坡工序生产线

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JPH0248098Y2 (it) * 1986-04-28 1990-12-18

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US2293287A (en) * 1940-08-01 1942-08-18 Gen Motors Corp Material handling device
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US1387260A (en) * 1920-04-15 1921-08-09 Davy Brothers Ltd Tire slabbing and punching press
US2293287A (en) * 1940-08-01 1942-08-18 Gen Motors Corp Material handling device
US2811267A (en) * 1952-02-14 1957-10-29 Magnaflux Corp Feeding mechanism control system
US3135397A (en) * 1961-01-25 1964-06-02 Ajax Mfg Co Die lifter

Cited By (19)

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Publication number Priority date Publication date Assignee Title
US4044462A (en) * 1976-10-26 1977-08-30 General-Electro Mechanical Corporation Rivet blank feeder for riveting apparatus
US4311031A (en) * 1978-07-27 1982-01-19 Rigobert Schwarze Pipe bending machine
US4449390A (en) * 1980-12-29 1984-05-22 Teksid, S.P.A. Automatic unit for hot molding and trimming of metal parts
FR2498501A1 (fr) * 1981-01-27 1982-07-30 Maffre Jean Systeme de tetes de tournage commandees a distance, adaptable sur machine-outil a broche tournante
US4463587A (en) * 1981-04-28 1984-08-07 Eumuco Aktiengesellschaft Fur Maschinenbau Article handling assembly for forging presses having a spraying mechanism for cleaning, lubricating and cooling the press
US4481896A (en) * 1982-01-13 1984-11-13 Wembley Industries, Inc. Flexible material stacker
US4566306A (en) * 1983-03-17 1986-01-28 Yugengaisha Kyodogiken Method and apparatus for feeding materials to be pressed
WO2005011894A1 (en) * 2003-08-01 2005-02-10 Amafa Service Srl Device for transferring semifinished products on multistation presses
US20060174677A1 (en) * 2003-09-18 2006-08-10 Lothar Bauersachs Method and device for shaping workpieces
WO2005037460A1 (de) * 2003-09-19 2005-04-28 Langenstein & Schemann Gmbh Verfahren und vorrichtung zum umformen von werkstrüken
US7444850B2 (en) 2003-09-19 2008-11-04 Langenstein & Schemann Gmbh Method and device for shaping workpieces
US20050092052A1 (en) * 2003-11-05 2005-05-05 Paul Stone Forging apparatus and conveyor for forming complex articles
US7143624B2 (en) * 2003-11-05 2006-12-05 Paul Stone Forging apparatus and conveyor for forming complex articles
US20060065036A1 (en) * 2004-07-23 2006-03-30 Frank Reissenweber Method and device for transferring a workpiece
US7278288B2 (en) * 2004-07-23 2007-10-09 Langenstein & Schemann Gmbh Method and device for transferring a workpiece
CN102773396A (zh) * 2012-07-25 2012-11-14 攀钢集团攀枝花钢铁研究院有限公司 一种快锻机上砧块的快速更换装置及方法
CN102773396B (zh) * 2012-07-25 2014-12-03 攀钢集团攀枝花钢铁研究院有限公司 一种快锻机上砧块的快速更换装置及方法
CN103192023A (zh) * 2013-03-21 2013-07-10 宁波海星机械制造有限公司 多工位冷镦机机械手传动机构
CN103433389A (zh) * 2013-09-10 2013-12-11 聊城市金帝保持器厂 一种轴承保持器压坡工序生产线

Also Published As

Publication number Publication date
IT978844B (it) 1974-09-20
JPS4890958A (it) 1973-11-27
GB1409979A (en) 1975-10-15
JPS571339B2 (it) 1982-01-11
FR2171268B1 (it) 1980-08-08
FR2171268A1 (it) 1973-09-21

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