EP0260546A2 - Machine à forger - Google Patents

Machine à forger Download PDF

Info

Publication number
EP0260546A2
EP0260546A2 EP87112936A EP87112936A EP0260546A2 EP 0260546 A2 EP0260546 A2 EP 0260546A2 EP 87112936 A EP87112936 A EP 87112936A EP 87112936 A EP87112936 A EP 87112936A EP 0260546 A2 EP0260546 A2 EP 0260546A2
Authority
EP
European Patent Office
Prior art keywords
plunger
cylinder
armature
piston
spring
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.)
Granted
Application number
EP87112936A
Other languages
German (de)
English (en)
Other versions
EP0260546A3 (en
EP0260546B1 (fr
Inventor
Hans Albert Schubert
Klaus Schulze
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.)
SMS Hasenclever GmbH
Original Assignee
SMS Hasenclever GmbH
SMS Hasenclever Maschinenfabrik 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 SMS Hasenclever GmbH, SMS Hasenclever Maschinenfabrik GmbH filed Critical SMS Hasenclever GmbH
Priority to AT87112936T priority Critical patent/ATE58657T1/de
Publication of EP0260546A2 publication Critical patent/EP0260546A2/fr
Publication of EP0260546A3 publication Critical patent/EP0260546A3/de
Application granted granted Critical
Publication of EP0260546B1 publication Critical patent/EP0260546B1/fr
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
    • 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
    • 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
    • B21J13/02—Dies or mountings therefor
    • B21J13/03—Die mountings

Definitions

  • the invention relates to a forging machine known as a radial forming machine, with four plungers which are arranged in a working plane and are movable radially to the longitudinal axis of the workpiece and are fitted with tools. So that the tools in the stroke end positions of the plunger form a closed caliber, the tools are connected to the plunger by cross pieces, which form a support with the plungers and are adjustable in the working plane, the adjustment depending on the setting of the stroke end position in such a way
  • the extent is such that each tool with its unused width of the working surface is covered by a side surface of one neighboring tool and even with its side surface covers the unused width of the working surface of the other neighboring tool.
  • the cross pieces are connected to the plungers by releasable clamping devices which prevent the cross piece and plunger from being mutually braced by the force of a spring and the loosening of the clamping device by a piston acting against the spring force. Effect cylinder unit.
  • the clamping devices require a considerable amount of construction and their arrangement in the vicinity of the tools and the workpiece with its heat radiation is disadvantageous, while the adjustment of the crosspiece relative to the plunger is carried out via a shaft which, because of the larger space requirement on the plunger side facing away from the crosspiece arranged drive of the adjusting device connects to the cross piece on the end face of the plunger and penetrates an axial bore in the plunger.
  • the object of the invention is a clamping and adjusting device between the cross piece and its plunger, which is structurally less complex and removed from the area of direct heat radiation.
  • This object is achieved according to the invention in that each plunger and the cross piece assigned to it is penetrated by a collar-provided anchor which, together with the bundles, the cross-piece, the plunger and a spring underlaid on the collar on the free plunger side when the cross-piece is clamped against the plunger includes that on the collar supported by the spring, a piston which can be acted upon by the spring force in a cylinder connected to the plunger, then releases the tension of the crosspiece against the plunger, and that the armature extends beyond the collar supported by the spring extended and rotatably coupled with a rotary drive supported on the machine frame via the crossbar for stroke position adjustment, but axially displaceable.
  • the spring and the piston-cylinder unit which can be acted against against the spring force, can be used as elements of the clamping device on the side of the plunger facing away from the tool with a crosspiece, that is to say in the space that is removed from the heat radiation and less spatially restricted area.
  • the collar of the anchor assigned to the crosspiece, which braces the crosspiece against the plunger, is designed according to a further feature of the invention as a lever arm which is provided with a pin parallel to the anchor and a link piece pivotably seated on the pin, the crosspiece with a is provided transversely to its sliding direction guide, in which the Set piece engages.
  • the cross piece with the link guide, the lever with the link piece and the tie rod are particularly suitable in this design to transmit high clamping and displacement forces.
  • the surface of the crosspiece which is only occupied by the one collar of the tie rod, and which is protected by a cover carrying the tool, also permits a structurally simple, robust design of the connection of the crosspiece to the plunger.
  • the cross piece is guided opposite the plunger by guide blocks which lie in one part (plunger, cross piece) in grooves and lead in the adjustment of the cross piece to provide space in the other part.
  • form-locking bodies are provided which lie in recesses in the plunger and the cross piece and are provided on their opposing end faces with fine toothing which engage with one another when the cross piece is clamped against the plunger.
  • a spring cup which can be connected to the plunger is provided, in which the spring or the spring assembly is arranged between spring plates and the axial bearings supporting them.
  • the cover to the spring cup is designed as an annular cylinder in which there is an annular piston which is in operative connection with the axial bearing, which is assigned to the spring plate connected to the collar of the armature.
  • the arrangement of the axial bearing turns the armature for lateral adjustment of the crosspiece relative to the plunger is possible as soon as the spring or spring assembly is compressed by actuation of the piston, the crosspiece is pressed off the plunger and the fine toothing of the interlocking body is disengaged.
  • the anchor can be used in addition to bracing the crosspiece in a simple manner to move it transversely with respect to the plunger, according to a further feature of the invention it is provided with a multi-wedge pin on its end facing outward from the plunger, with which it is inserted a multi-spline hub engages, which is connected to a rotary drive via a radial offset coupling.
  • a gearwheel moved by two counter-rotating plungers via racks is provided as the rotary drive.
  • plungers of different designs are possible.
  • a ram can be provided with a cylinder which is axially movably guided in the machine frame and provided with a central shaft, the ring piston associated with the cylinder and surrounding the shaft being supported by a crossbar which can be adjusted relative to the stroke position relative to the machine frame.
  • a plunger which is guided in the bore of a cylinder connected to the machine frame and is provided with a shaft can be provided, a plug surrounding the piston shaft and closing the cylinder bore via a plunger Stroke adjustment against the machine frame adjustable crossbar is supported.
  • a plunger that is guided in a cylinder and has a shaft that penetrates the cylinder base can be provided as the plunger, the cylinder being adjustable in the machine frame for adjusting the stroke position.
  • a central shaft guided in the machine frame which is provided with an annular flange, can act on the piston-cylinder units, whereby the piston-cylinder units have a crossbar that can be adjusted relative to the stroke position relative to the machine frame are supported.
  • the shaft whether it is part of a piston or part of a cylinder, or whether it forms the tappet itself, is drilled through to receive the armature.
  • the rotary actuator connected to the armature is expediently stored in a bracket for the crossmember, so that it participates in the stroke position adjustment with the crossmember, so that only the working stroke and not the total stroke, as is supported by the rotary actuator, has to be compensated for between the anchor and its rotary actuator would be required directly on the machine frame.
  • a forging 1 can be seen in cross section in FIG.
  • the cross-sectional size is determined from the respective stroke end position of the tools 2 and the position of the tools 2 relative to one another, with the unused width of the working surface of a tool 2 being covered by the side surface of the adjacent tool 2 in a stroke end position. Shown in dashed lines in FIG. 1 are the largest cross section, determined by the tool width and the smallest, by the greatest possible mutual overlap of the tools 2.
  • the tools 2 are carried and moved by rams 3 which are arranged in the machine frame 4 so as to be axially movable.
  • the setting of the tools 1 to the plungers 3 takes place by means of cross pieces 5, which together with the plungers 3 form supports, so that the cross pieces 5 can be adjusted and locked transversely to the plunger axes in the working plane.
  • the stroke end position of a tool 2 which is dependent on the desired cross section, determines the adjustment dimension of an adjacent tool that covers the working surface of the first tool 2 with its unused width with its side surface.
  • the plunger 3 is designed as a cylinder 6, which in the machine frame 4 in guide pieces 7 and 8, which can be designed as round or surface guides - the latter around the cylinder 6 in the machine frame 4 against rotation secure - is led.
  • a shaft 9 is inserted into the perforated cylinder base and is connected to the cylinder 6 by a threaded nut 10.
  • An annular piston 11 surrounding the shaft 9 is supported on the machine frame 4 via a crossmember 12.
  • 4 anchors are used in the machine frame, which are extended to form spindles 13 with threaded shafts 14.
  • In the crossbeams 12 are externally toothed 19 and internally threaded nuts 20 rotatably supported and held by split bearing plates 21.
  • the four nuts 20 of a cross member 12 are rotated together by a ring gear 22 which can be rotated with balls 23 on a bearing ring 24 centered and fastened on the cross member 12.
  • a motor 28 with pinion is provided to drive the ring gear 22.
  • a plate 31 is placed on the crossmember 12, into which the cylinders 32 are incorporated, which receive the retraction pistons 30 and a further crossmember 33 is connected to the shaft 9, via which the pistons 30 limit the stroke of the ram 3 and its retraction cause.
  • the shaft 9 is drilled through its entire length and receives in its bore 35 a tie rod 36 which is provided with collars 37 and 38.
  • the tie rod 36 also passes through the cross piece 5 placed on the end face of the plunger 3.
  • the collar 37 placed on the end of the tie rod 36 and connected to it by wedges 39 abuts the cross piece 5.
  • the collar 37 is designed as a lever which, with a pin 40 and a link piece 41 placed on the pin 40, engages in one leg of a T-shaped opening of the cross piece 5 designed as a link guide 42, while the other leg 43 penetrates the tie rod 36 designed.
  • Guide blocks 44 which guide the cross piece 5 provided with a guide groove 45, are embedded in cutouts on the end face of the plunger 3.
  • Form-fit bodies 46 are inserted into further cutouts on the end face of the plunger 3 and corresponding cutouts in the cross piece 5, which are provided with fine toothing 47 on their opposite end faces.
  • the recess in the cross piece 5, which receives the collar 37, is closed by a cover 48 which encloses the collar 37 and at the same time serves as a support plate for the tool 2.
  • a spring head 50 On the shaft 9, a spring head 50 is attached, which receives a spring assembly 51.
  • Spring plates 52 and 53 support this Spring assembly 51 via axial bearings 54 and 55 on the one hand at the bottom of the spring cup 50 and on the one hand at the collar 38 of the armature 36.
  • a cover 56 of the spring cup 50 is designed as an annular cylinder 57 in which an annular piston 58 is guided, when it is acted upon by the collar 38 Armature 36 is axially displaced.
  • the armature 36 presses the cross piece 5 from the plunger 3 over the cover 48, the fine toothing 47 of the form-fitting body 46 disengaging, and by rotating the armature 36 via the collar 37 of the pin 40 and the link piece 41, the cross piece 5 in the working plane can be moved transversely to the ram axis.
  • the armature 36 is extended and designed as a splined pin 59 and this engages in a splined hub 60 which is mounted in a bracket 61 with axial clearance and fixed in a radial manner.
  • the console 61 is placed on the cross member 16.
  • a gear 62 is also mounted, which is rotatably connected to the splined hub 60 via an Oldham coupling 63.
  • the gear 62 is driven by two oppositely operating plungers 64 and 65 which are connected to racks 66 which engage in the gear 62.
  • the actuation of the rotating device ie the action of the pistons 64 is only possible if the annular piston 58 is also active is acted upon.
  • the tools 2 are displaced by acting on the pistons 64 and 65 as a function of the stroke position setting of the adjacent plunger 3 via the motor 28 as described.
  • FIGS. 7 to 8 show further exemplary embodiments in a schematic illustration, the same reference numerals being used for the corresponding parts.
  • the machine frame 4 is designed as a cylinder or is permanently connected to the cylinder.
  • the plunger 3a is designed as a piston 68 and the cylinder is closed by a plug 15 which is penetrated by the shaft 69 of the piston 68.
  • the plug 15 is connected to a crossmember 17 which is adjustable along the spindles 13 for adjusting the stroke position.
  • the plunger 3b designed as a piston 70 is guided in the embodiment shown in FIG. 8 in a cylinder 71 which is guided and adjustable in the machine frame 4, for which purpose the cylinder 71 is provided with a neck 72 which is threaded by one in the machine frame mounted nut 73 is adjustable for adjusting the stroke position.
  • the plunger 3c is guided directly in the machine frame 4.
  • the piston-cylinder units 74 which move the plunger 3c and which are connected to the plunger 3c via an annular flange 75 are supported on the machine frame 4 by means of a traverse 76, for which purpose the crossbar 76 is adjustable along spindles in order to adjust the stroke position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Disintegrating Or Milling (AREA)
EP87112936A 1986-09-16 1987-09-04 Machine à forger Expired - Lifetime EP0260546B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87112936T ATE58657T1 (de) 1986-09-16 1987-09-04 Schmiedemaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3631439 1986-09-16
DE3631439 1986-09-16

Publications (3)

Publication Number Publication Date
EP0260546A2 true EP0260546A2 (fr) 1988-03-23
EP0260546A3 EP0260546A3 (en) 1988-09-07
EP0260546B1 EP0260546B1 (fr) 1990-11-28

Family

ID=6309661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112936A Expired - Lifetime EP0260546B1 (fr) 1986-09-16 1987-09-04 Machine à forger

Country Status (5)

Country Link
US (1) US4813263A (fr)
EP (1) EP0260546B1 (fr)
JP (1) JPH0761521B2 (fr)
AT (1) ATE58657T1 (fr)
DE (1) DE3766454D1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6956032B1 (en) * 1986-04-18 2005-10-18 Carnegie Mellon University Cyanine dyes as labeling reagents for detection of biological and other materials by luminescence methods
DE4143176A1 (de) * 1991-12-30 1993-07-01 Hasenclever Maschf Sms Schmiedemaschine
DE4143175A1 (de) * 1991-12-30 1993-07-01 Hasenclever Maschf Sms Schmiedemaschine
DE4444493A1 (de) * 1993-12-16 1995-06-22 Hasenclever Maschf Sms Schmiedemaschine
JPH07121429B2 (ja) * 1993-12-16 1995-12-25 エス エム エス ハーゼンクレヴァー ゲゼルシャフト ミット ベシュレンクテル ハフツング 鍛造機
DE4444498A1 (de) * 1993-12-16 1995-06-22 Hasenclever Maschf Sms Schmiedemaschine
US20080307709A1 (en) * 2007-06-15 2008-12-18 Stull Edward J Dual swing powered gate actuator
CN102601280A (zh) * 2011-01-24 2012-07-25 西安宝信冶金技术有限公司 一种多锤头高频精密径向同步锻造方法
CN107931500A (zh) * 2017-11-14 2018-04-20 江苏海威锻造有限公司 环形支撑式液压径向锻造机
IT201900012960A1 (it) * 2019-07-26 2021-01-26 Mecolpress S P A Apparecchiatura per lo stampaggio di materiali.
WO2021064740A1 (fr) * 2019-10-03 2021-04-08 Shyam Newar Presse hydraulique à combinaison périphérique pour la forge et son procédé de fabrication
CN113680941B (zh) * 2021-08-03 2024-01-12 新余市本通特锻有限公司 一种双向锤击式锻压机
CN113828694B (zh) * 2021-10-29 2024-04-12 领先科技(东台)有限公司 一种调节限位式马达顶压成型机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1627492A1 (de) * 1966-09-13 1970-08-27 Davy & United Eng Co Ltd Werkzeughalter fuer Pressen od.dgl.
DE1960418A1 (de) * 1969-12-02 1971-06-24 Horst Schenk Werkzeug fuer Schmiedemaschine
EP0228030B1 (fr) * 1986-01-02 1991-04-24 SMS Hasenclever GmbH Machine de forgeage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1050154B (de) * 1956-03-19 1959-02-05 Champigny Seine Rene Etienne Bujon (Frankreich) Hämmermaschine zum Herstellen von Profilstäben
DE1908361A1 (de) * 1969-02-20 1970-09-10 Sack Gmbh Maschf Schmiedemaschine
DE1908362A1 (de) * 1969-02-20 1970-09-10 Sack Gmbh Maschf Schmiedemaschine mit verstellbaren Schmiedesaetteln
AT329349B (de) * 1973-11-15 1976-05-10 Gfm Fertigungstechnik Schnellaufende kurzhub-schmiedepresse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1627492A1 (de) * 1966-09-13 1970-08-27 Davy & United Eng Co Ltd Werkzeughalter fuer Pressen od.dgl.
DE1960418A1 (de) * 1969-12-02 1971-06-24 Horst Schenk Werkzeug fuer Schmiedemaschine
EP0228030B1 (fr) * 1986-01-02 1991-04-24 SMS Hasenclever GmbH Machine de forgeage

Also Published As

Publication number Publication date
US4813263A (en) 1989-03-21
ATE58657T1 (de) 1990-12-15
JPH0761521B2 (ja) 1995-07-05
EP0260546A3 (en) 1988-09-07
DE3766454D1 (de) 1991-01-10
EP0260546B1 (fr) 1990-11-28
JPS6376732A (ja) 1988-04-07

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