EP3277492A1 - Procédé de formage et presse - Google Patents

Procédé de formage et presse

Info

Publication number
EP3277492A1
EP3277492A1 EP16715437.6A EP16715437A EP3277492A1 EP 3277492 A1 EP3277492 A1 EP 3277492A1 EP 16715437 A EP16715437 A EP 16715437A EP 3277492 A1 EP3277492 A1 EP 3277492A1
Authority
EP
European Patent Office
Prior art keywords
press
lever
toggle
piston
rotation
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.)
Withdrawn
Application number
EP16715437.6A
Other languages
German (de)
English (en)
Inventor
Hilmar Hubbes
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
Publication of EP3277492A1 publication Critical patent/EP3277492A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/039—Means for controlling the clamping or opening of the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/12—Drives for forging presses operated by hydraulic or liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/26—Mechanisms or devices for locking or opening dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/002—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/02—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by lever mechanism
    • B30B1/08—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by lever mechanism operated by fluid-pressure means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/106—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by another toggle mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/16—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by fluid-pressure means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height

Definitions

  • the invention relates to a forming process, in particular a hot forming process, as well as a press in which in a frame by a force of a cylinder with a
  • Presses are known and proven in various embodiments. In particular hydraulically operated presses have a wide range of applications. Mechanically operated
  • Forming method with a press having in a Ge entitled a closing by the force of a cylinder with a movable piston against a press table in a rectilinear motion stamp according to. of the claim 1 by the measures that the piston initially acts on the closing of the press on at least one toggle lever system and that with extension of the toggle lever system in the direction of movement of the piston and its rectilinear support against the
  • the forming process according to the invention has a number of advantages, which in the division of the forming of a
  • Another advantage results from the measure that when closing the press initially the hydraulic pad is extended, that the hydraulic pad is retracted with impact on a workpiece and that after stretching of the at least one toggle systems, the re-extending hydraulic pad completes the forming process.
  • Knee lever systems is connected frame-fixed and that the punch has a hydraulic pad.
  • the press according to the invention also has a number of advantages. When using a quick-lift piston, initial closing speeds of the toggle systems from 800 mm / s to 900 mm / s can be achieved. In addition, the
  • Knee lever system has a lever which is connected to a first
  • Tied axis is connected, that the continuous leg is connected at the other end on a third axis of rotation in a frame-fixed receptacle, wherein the three axes of rotation in the closed position of the press in a line in the
  • Cylinder or its height adjustment is a simple one Adapting to workpieces and dies of different
  • the receptacles are arranged at the free ends of threaded spindles, in particular with a trapezoidal thread extending in
  • Stands in spindle nuts set adjustable in height and, for example, motorized.
  • Lock can then secure the height adjustment.
  • the geometry of the toggle systems is primarily geared towards a quick closing of the press. It is therefore provided that the distances between the first and the second axis of rotation and the second and the third axis of rotation are equal. Thus, these lever sections form an isosceles triangle when opening the press.
  • the measure that the second and the fourth axis of rotation are arranged on a circular path about the third axis of rotation, may serve this purpose.
  • At least two toggle lever systems will be provided, which are arranged with each pointing toward each other, outgoing legs of the toggle lever on the stamp, and that the free ends of the outgoing legs of the toggle lever are connected via the connecting lever to a common, piston-resistant platform. If four toggle systems are used, these will be in two next to each other
  • connection levers are rotatably connected.
  • connections between levers, receptacles and / or webs are formed like pliers by a first part to be connected of two tabs of the sections in a cross section
  • U-shaped second part is bordered and by both parts by a bolt in aligned holes as
  • Rotary axis are connected.
  • one end of the first part is weakened to a pin and provided with a rounding, that by weakening two perpendicular to the pin flat sides
  • FIG. 1 is a front view of a press according to the invention
  • Fig. 4 is an isometric view, Fig. 5; a front view of a isolated
  • FIG. 6 a side view
  • FIG. 7 an isometric view
  • 10 is a side view
  • 11 is a front view of a deflected toggle system
  • FIG. 14 a second side view
  • FIG. 15 a front view of an opened press
  • Fig. 16 the impact of the upper die on a workpiece when closing the press
  • Fig. 17 the press with locked toggle systems and retracted inner box of the hydraulic
  • Fig. 18 the press position after completion of the
  • 19 is a side view of a hydraulic pad
  • Fig. 21 an end view
  • FIG. 22 an isometric view
  • FIG. 23 a front view with a hydraulic cushion in a lowermost position
  • FIG. 24 a front view with a hydraulic cushion in an uppermost position
  • Fig. 25 schematically the connection of a threaded spindle to the upper flange and Fig. 26: a detail of a toggle lever system.
  • FIGS. 1-3 a press 1 according to the invention is shown in a three-sided view.
  • the press 1 is of per se conventional gantry design with two stands 2,3 and the uprights 2, 3 connecting top chord 4 of
  • Fig. 1 shows the press 1 in a closed position in which an upper die 5 of a punch 6 is moved against a lower die 7 of a press table.
  • Stamp 6 is defined in the upper flange 4
  • Hydraulic cylinder 8 is provided, the piston 9 acts on here four identically formed toggle lever systems 10,11, see. Figures 15-18.
  • a comparatively long double cylinder is preferably used, which is designed for very fast strokes, so that in particular for a hot forming of a workpiece on the toggle systems 10,11 the dies 5,7 can be quickly closed.
  • the punch 6 further has a dioecious hydraulic pad 14, on the underside of the upper die 5 is fixed.
  • Fig. 1 shows the hydraulic pad 14 extended, thus the upper die 5 in its understen position.
  • Each knee lever system 10,11 has a first lever 15 which at a first, here lower end 16 via a rotation axis 17 on the hydraulic pad 14 of the punch. 6
  • the pin 32 is bordered by two tabs 27,28 of the continuous leg 29 of the toggle lever 25, which also again have aligned holes 30,31.
  • the aligned holes 26,30,31 bolt as a rotation axis 35 of the lever 15 and the toggle lever 25 are hinged together.
  • the other end 34 of the continuous leg 29 of the toggle lever 25 is weakened again to a pin 36 and provided with a bore 37.
  • the pin 36 is bordered by two tabs with aligned holes of a receptacle 38 and there is a connection by a bolt as a rotation axis 39th
  • connecting lever 46 also holds in the manner explained above with two tabs like a pliers a web 48, the underside of a piston-fixed
  • Platform 49 protrudes, and is pivotally connected thereto via a bolt as a rotation axis 50.
  • toggle systems are arranged in a uniform pitch on a circular track centrally above the hydraulic pad with inwardly pointing, outgoing legs of the toggle lever, then the bottom of the platform crosses the webs in the center.
  • Hydraulic pad 14 is not exclusively on the axes of rotation 17,35,39,47,50, but in particular Figure 11 shows that the connections of the levers 15,25,46 are tailor-matched to each other.
  • the end faces 55,56 of the tabs 27,28 of the bell crank 25 are based on the front side
  • the end face 61 is supported at the upper end 16 of the lever 15 on the groove bottom 62 between the tabs 55,56 of the toggle lever 25, and is the end face 61 for pivoting with a rolling on the groove bottom 62
  • connection of the toggle lever 25 to the receptacle 38 and the connecting lever 46 is carried out in the same way.
  • stretched arrangement of the lever is a further deflection of the lever is not possible.
  • the connecting lever 46 locks by abutment of its narrow side 69 on the underside 51 of the platform 49.
  • the levers 15,25 only in Fig. 1 only to the right, are deflected in the direction of the outgoing lever 40.
  • the geometry of the toggle lever systems 10,11 is on a
  • FIG. 26 shows that in the toggle lever system 11, the distances a, a between the first axis of rotation 75 of the lever 76 and the second axis of rotation 77 as well as this axis of rotation 77 and the third axis of rotation 78 of the toggle lever 79 are the same.
  • Connection lever is connected, on a circular path r about the third axis of rotation 78th
  • the three axes of rotation are 75,77,78 with closed dies 5.7 on a line b.
  • the receptacles 38, 85 are height-adjustable, cf. Fig. 23, 24. Also in the cylinder 8 can be connected to a
  • receptacles 38,85 are arranged at the free end of threaded spindles 86,87, preferably with a trapezoidal thread, which are trapped in the upper flange 4 adjustable in height.
  • the threaded spindles 86, 87 are shown in FIG. 25 in two
  • the height position of the threaded spindle 86 is effected by two motors 90,91, for example, very precisely adjustable stepper motors.
  • Fig. 25 also shows that the closing of the hydraulic pad 14 at the termination of
  • Fig. 15 shows the press 1 with over a workpiece 95 with largely shortened toggle levers 10,11.
  • the hydraulic pad 14 is in an uppermost position above the
  • the hydraulic cushion 14, cf. also the figures 19-22, has an outer box 96, in which an inner box 97 is guided.
  • an inner box 97 is guided.
  • Knee lever system 35 Rotary axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

L'invention concerne un procédé de formage au moyen d'une presse qui présente dans un bâti un poinçon se fermant dans un mouvement rectiligne contre un plateau de presse sous l'effet de la force d'un cylindre comportant un piston mobile. Lors de la fermeture de la presse (1), le piston (9) commence à agir sur au moins un système de genouillère (10, 11) et, avec l'extension du système de genouillère dans la direction de déplacement du piston (9) et son appui rectiligne contre le bâti, un patin hydraulique (14) du poinçon (6) termine le processus de fermeture. La presse, qui présente dans un bâti un poinçon se fermant dans un mouvement rectiligne contre un plateau de presse sous l'effet de la force d'un cylindre comportant un piston mobile, est caractérisée en ce que le poinçon (6) est raccordé solidaire au bâti par l'intermédiaire d'au moins deux systèmes de genouillère (10, 11) de conception identique et en ce que le poinçon (6) présente un patin hydraulique (14).
EP16715437.6A 2015-03-31 2016-02-24 Procédé de formage et presse Withdrawn EP3277492A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015004108.8A DE102015004108A1 (de) 2015-03-31 2015-03-31 Umformverfahren und Presse
PCT/DE2016/000076 WO2016155689A1 (fr) 2015-03-31 2016-02-24 Procédé de formage et presse

Publications (1)

Publication Number Publication Date
EP3277492A1 true EP3277492A1 (fr) 2018-02-07

Family

ID=55701644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16715437.6A Withdrawn EP3277492A1 (fr) 2015-03-31 2016-02-24 Procédé de formage et presse

Country Status (7)

Country Link
US (1) US10556263B2 (fr)
EP (1) EP3277492A1 (fr)
JP (1) JP6676652B2 (fr)
KR (1) KR20170132781A (fr)
CN (1) CN107405852B (fr)
DE (2) DE102015004108A1 (fr)
WO (1) WO2016155689A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3284678B1 (fr) * 2016-08-19 2019-04-24 Hamilton Sundstrand Corporation Mécanisme de libération
US11072011B2 (en) 2018-10-18 2021-07-27 The Boeing Company Hot boxes for hot-forming presses
US11253898B2 (en) * 2018-10-18 2022-02-22 The Boeing Company Hot-forming presses and methods of hot-forming workpieces
CN110315791B (zh) * 2019-08-08 2021-04-02 西安理工大学 模具压紧机构及具有其的锁模装置、制芯机
JP7341795B2 (ja) * 2019-08-30 2023-09-11 住友重機械工業株式会社 離型剤吹付装置及びプレス装置
CN110743998A (zh) * 2019-11-06 2020-02-04 南通锻压设备如皋有限公司 一种混合驱动冲压机
CN111730897A (zh) * 2020-07-02 2020-10-02 赵月亭 一种粉末液压机杠杆式机械送料机构

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US2105053A (en) * 1934-06-15 1938-01-11 Hydraulic Press Corp Inc Four-point hydraulically operated press
US2780117A (en) * 1952-11-25 1957-02-05 Nat Lead Co Press for forging metal
DE1459339A1 (de) * 1962-04-12 1968-11-28 Rheinmetall Gmbh Kniehebelpresse
DE2516454A1 (de) * 1975-04-15 1976-10-28 Maschinenbaugesellschaft Mbh Druckmittelbetaetigte presse zur spanlosen formgebung
DE2925416C2 (de) * 1979-06-23 1983-02-24 Werner Ing.(Grad.) 6460 Gelnhausen Leinhaas Kniehebel-Blechschneidepresse
DE3517492A1 (de) * 1984-11-05 1986-05-07 Werner Ing.(Grad.) 6460 Gelnhausen Leinhaas Kniehebel-blechschneidepresse, bestehend aus einem pressenstaender und einem pressenstoessel
DE3670043D1 (de) * 1986-06-20 1990-05-10 Bruderer Maschinenfabrik Ag E Gelenkhebel-, schneid- und umformpresse.
US5600995A (en) * 1995-06-07 1997-02-11 Sherman; Alden O. Useful improvements in press apparatus
JP2000042797A (ja) * 1998-07-23 2000-02-15 Toyota Shatai Seiko Kk プレス機械
DE20216874U1 (de) * 2002-10-30 2003-02-06 Händle GmbH, 75417 Mühlacker Presse für keramische Industrie
DE102004046493B4 (de) * 2004-08-18 2013-02-28 Schuler Pressen Gmbh Presse insbesondere zur Herstellung von Formteilen aus Kunststoff
JP2007045091A (ja) * 2005-08-12 2007-02-22 Sumitomo Heavy Ind Ltd 電動式竪型成形機及びそれによる成形方法
US7124618B1 (en) * 2006-03-07 2006-10-24 Gm Global Technology Operations, Inc. Clamp assembly for hydroforming die
CN201823859U (zh) * 2010-04-21 2011-05-11 重庆全悦机械制造有限公司 液压锻压机
DE202010013067U1 (de) 2010-12-06 2011-03-24 Foliotec Gmbh Kniehebelpresse mit Verstellvorrichtung für ein Werkzeugteil
CN102363375A (zh) * 2011-06-30 2012-02-29 天津市天锻压力机有限公司 快速节能单动液压机
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Also Published As

Publication number Publication date
US10556263B2 (en) 2020-02-11
DE112016001500A5 (de) 2018-04-05
CN107405852A (zh) 2017-11-28
KR20170132781A (ko) 2017-12-04
WO2016155689A1 (fr) 2016-10-06
CN107405852B (zh) 2020-01-03
JP2018510067A (ja) 2018-04-12
JP6676652B2 (ja) 2020-04-08
DE102015004108A1 (de) 2016-10-06
US20180117654A1 (en) 2018-05-03

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