EP1345715B1 - Schmiedepresse mit stellvorrichtung auf matrizenseite - Google Patents

Schmiedepresse mit stellvorrichtung auf matrizenseite Download PDF

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Publication number
EP1345715B1
EP1345715B1 EP01985418A EP01985418A EP1345715B1 EP 1345715 B1 EP1345715 B1 EP 1345715B1 EP 01985418 A EP01985418 A EP 01985418A EP 01985418 A EP01985418 A EP 01985418A EP 1345715 B1 EP1345715 B1 EP 1345715B1
Authority
EP
European Patent Office
Prior art keywords
forging press
die
wedge
press according
setting
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
EP01985418A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1345715A1 (de
Inventor
Luc Hoorelbeke
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.)
Nedschroef Herentals NV
Original Assignee
Nedschroef Herentals NV
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 Nedschroef Herentals NV filed Critical Nedschroef Herentals NV
Publication of EP1345715A1 publication Critical patent/EP1345715A1/de
Application granted granted Critical
Publication of EP1345715B1 publication Critical patent/EP1345715B1/de
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
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • 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
    • 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
    • B21J13/14—Ejecting devices
    • 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
    • B21J9/02—Special design or construction
    • 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
    • B21J9/02—Special design or construction
    • B21J9/022—Special design or construction multi-stage forging presses
    • 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

Definitions

  • the invention relates to improvements in the adjustment of tools Schmeidepressen.
  • a workpiece is used in forging presses, especially horizontal transfer presses brought to the desired shape by reshaping it between a fixed die and a movable punch so strongly pressed is that the desired transformation takes place.
  • the stamp is not pushed to the stop when the machine is in operation moved towards the die, but only up to a so-called closing height distance, which of course is decisive for the deformation result.
  • the closing height distance can be adjusted, i.e. adjusted subsequently.
  • an adjusting device which has an adjusting cell in the wedge direction, transverse to Longitudinal direction, more or less between the stamp and the rest of the Pushes in the carriage carrying the stamp.
  • the disadvantage is that the entire adjusting device in the moving part of the Machine, the impact side, and not in the stationary support side, due to the high acceleration forces (approx. 300 strokes per minute) is disadvantageous and also has the disadvantage that to repair not only stopped the machine, but also U. also the complete sled must be expanded, which causes high production losses.
  • This solution is particularly suitable for horizontal transfer presses, which means the longitudinal direction of the machine, the lifting direction, is arranged horizontally, and which are integrated in a transfer line, so that the workpieces cross to Longitudinal direction of the individual machine from one processing station to next are transported by means of a transfer device.
  • the transport from one forging position to the next, if necessary within the same machine but in a different tool be carried out when the machine has multiple tools, i.e. dies and Stamp, embraced side by side.
  • the solution is also particularly suitable for forging presses that do not with continuous material, e.g. B. wire material, but the raw parts individually inserted into the machine, i.e. into the die, before each forming process be what is usually also automatically by means of a transfer facility happens.
  • continuous material e.g. B. wire material
  • the spacing is preferably changed by inserting a wedge more or less in the wedge direction and across to the longitudinal direction, the stroke direction, this wedge preferably on a analogous opposite, equally steep counter surface of a counter wedge supported.
  • the die block and die are in the longitudinal direction already tight against the wedge and thus against the body biased as free of play as possible.
  • this pretension which is usually via a lever mechanism and a hydraulic cylinder is realized, at least in part be lifted in order not to let the displacement force become too high.
  • the adjustment is preferably carried out by means of a motor in the direction of adjustment Wedge-running threaded spindle, which is preferred - especially with horizontal transfer presses - Attacks from the bottom while the workpiece feed done from the top.
  • the threaded spindle runs u. a. through a hydraulically clampable nut that works during the forging process the machine is left in the clamped state around the threaded spindle to fix.
  • This change also causes a change in the workpiece to be manufactured the shaft length L1 which has not been changed by reshaping, for example if the round material is cut to length by inserting it into the die and Protruding over their front stop surface by means of the stamp of Screw head should be formed on the blank, because then the distance between the front stop surface and the rear stop the Shaft length of the later screw, on which the thread is then is rolled up or pressed, is changed.
  • the second adjusting device also comprises a threaded spindle for the adjustment, which is also in the body, but this time in the longitudinal direction, is screwable.
  • a coupling of the two adjusting devices is possible, for example, by that both threaded spindles each have an electric motor, for example one Servomotor, driven and by means of a common or two individual, functionally linked controls can be controlled can.
  • Another problem is the transfer device, which is usually the Workpiece using grippers immediately in front of the front end of the front Grip surface of the die grips and to the next processing station transported. By changing this front stop surface could their relative position (distance s) to the transfer device can also be changed.
  • the clamping device for clamping and releasing the die block can also with another tensioning device for tensioning and releasing the transfer device be equipped with the base body or tension or loosen this in addition to the die block.
  • Fig. 1 shows a forging press according to the prior art, in which a workpiece 7 between a die 2 and a movable punch 1 is formed by pressing.
  • the die 2 is in the fixed part of the machine, the support side 100, added.
  • the stamp 1, however, is part of the in the stroke direction Press, the longitudinal direction 10, movably driven carriage 3 on the Impact page 101 of the machine.
  • the carriage 3 is in the longitudinal direction 10 - as in the left part of FIG. 1 shown - oscillatingly driven by a lever mechanism, it being for the design of the workpiece, in this case a screw head, above all depends on the flow height distance h, i.e. what distance the punch 1 in Reversal point of its movement in the longitudinal direction 10 of the die 2, that is, the die front stop surface 2a, occupies.
  • a wedge 6 was made transversely to the longitudinal direction in this known solution 10 inserted between the stamp 1 and the body of the slide, with other components that are unchangeable in length, between the wedge 6 and the stamp 1 can be arranged.
  • the Closing height distance h and thus in this case the head height h1 of to be manufactured screw head can be varied in that the wedge 6 more or less is inserted and fixed in the transverse direction, which is achieved by means of the also happens in the direction of insertion adjusting bolt 4.
  • the adjusting device 5 comprising the wedge 6 is located on the Carriage 3, that is the part of the forging press that oscillates at high frequency, which is particularly important in the case of a motorized actuating device, that is to say a motorized one Drive for the wedge 6, this drive is exposed to high loads.
  • the impact side 101 in FIG. 2a and in Fig. 2b primarily shows the support side 100 of the forging press, between which should be the workpiece shown separately in FIG. 3.
  • the workpiece is a screw blank with a head, the shank length of which should be L1 and its head height in the same direction, namely in the longitudinal direction of the Screw and also the machine, should be a1.
  • the support side 100 of the machine according to FIG. 2a differs from that known solution according to FIG. 1 only in that the carriage 3 no Actuator for changing the longitudinal position of the stamp 1 opposite the carriage 3 includes more, but the stamp 1 directly in one Stamp block is recorded and fixed, which is moved with the carriage 3.
  • FIG. 2b shows the support side 100 of the forging press separately, with an inserted one and already formed workpiece 7, that is after the forming. It is Workpiece 7 with its shank in a corresponding bore in the die 2 added. The rear free end of the shaft is supported a drive pin 21 from the rear into the bore of the die 2 protrudes to a predetermined position, and thereby a stop 28 for forms the rear end of the workpiece 7.
  • the front free end of the blank is shown by the not visible in Fig. 2b Stamp 1, ie from the left according to FIG. 2a, acted upon and deformed in the process, that widening of the head of the blank occurs and against the front End face, the stop surface 2a of the die 2 is pressed.
  • the die 2 is received in a die block 15, which is on the back is closed by a screwed block cover 15a, which is also has a through opening aligned with the bore of the die 2.
  • the Entire die block 15 including the block cover 15a is supported indirectly compared to the underlying body 9 from, namely via a Support plate 16, which in contrast to the base body 9 thus as a wearing part is interchangeable.
  • the Setting device 5 for the adjustment of the longitudinal position of the die 2, that is to say the die front stop surface 2a opposite the base body 9, arranged.
  • This adjusting device 5 consists of a wedge 6, the wedge shape in the insertion direction runs, which is transverse to the longitudinal direction 10 and thus the stroke direction of the Machine lies, so that by the transverse position of the wedge 6 due to the Wedge effect the longitudinal position of the component supported on the wedge, u. a. the die 2 and thus also its front stop surface 2a is determined.
  • the wedge 6 is in turn supported with its obliquely to the radial plane Wedge surface on an analog, oppositely positioned, firmly positioned counter wedge 19 from which is supported with its back on the support plate 16.
  • Wedge 6, counter wedge 19 and support plate 16 are - just like the base body 9 - in alignment with one Through hole penetrates to feed the push pin 21, which is not only represents the stop for the workpiece during forming, but then also to eject the workpiece.
  • the wedge 6 is adjusted via a threaded spindle 33, which is guided by a Threaded hole in the base body 9 is screwed through and with her head is rotatable in the wedge 6, but axially fixed, and is therefore in Can shift direction.
  • the rear end of the threaded spindle 33 protrudes from the base body 9 below and is connected to the threaded spindle 33 in a rotationally fixed manner Gear 30 from a servo motor 11 via a plurality arranged therebetween Gears driven.
  • a further gear meshes with the gear 30 32, whose axis of rotation is parallel to that of the threaded spindle 33 and whose axial extent is as large as the adjustment range of the threaded spindle 33, so that the gear 30 always with this gear despite longitudinal screwing 32 combs.
  • the engine Due to the arrangement of bevel gears in the drive train, the engine is seated in the right Angle to the threaded spindle 33 and therefore not far below the lower end of the Base body 9 so that its height is not increased unnecessarily.
  • a position sensor 12 is connected, which is constantly or in the axial position at regular intervals or only on request the threaded spindle 33 determines based on a known starting position and counting the rotations or angular changes that have now occurred of the servo motor 11.
  • the ejection pin 21 is used by the back into the corresponding through hole of the die 2 is introduced, which is usually the diameter of the other side corresponds to the workpiece to be inserted into the die.
  • the push pin 21 must, in particular, in its retracted position which has its front end as a stop 28 for the to be inserted Workpiece 7 is used, can be adjusted precisely. This position is in Fig. 2b shown. In contrast, to the left in a not shown in Fig. 2 shifted position of the pressure pin 21, this can be moved as far forward be that its front end the front stop surface 2 of the die reached or nearly reached.
  • the pressure pin 21 is at its rear end with a cylindrical widened head 31 equipped in a corresponding pin bushing 23 is guided in the longitudinal direction 10, which also the Block cover penetrates 15a. Presses on the head 31 from the rear Machine pin 22, which is also with its front end inside the Pin bushing 23 is guided, and in the rear area with a shoulder is supported at the front end of a threaded bushing 8.
  • the Operating position of the forging press i.e. in the retracted position from Expressing pin 21 and also the machine pin 22 is located with it rear shoulder 22a on the threaded bushing 8.
  • the Workpiece 7 are both by means of an ejector, which is inside the Threaded bushing 8 is guided and the machine pin 22 in from the rear Applied in the longitudinal direction, pushed forward in the longitudinal direction.
  • the threaded bushing 8 is in a corresponding manner by means of its external thread Internal thread of the base body 9 screwed in the longitudinal direction.
  • the screwable threaded bushing 8, via which the stop position of the Pressure pin 21 is set, are part of the second actuator 5 '.
  • the threaded bushing 8 is in turn driven - as in the first Adjustment device 5 for adjusting the position of the wedge 6 - via gears and a servo motor 13 and an associated position sensor 14, which behind the rear end of the base body 9 are arranged. Since a redirection of the Drive train by 90 ° is not necessary, there are none in the drive train Bevel gears installed.
  • the die block 15 including its block cover 15a is over a Clamping device 29 for forging in the longitudinal direction and against the on the base body 9 supported wedge 6 pressed and transverse to it corresponding stop surfaces of the base body 9, so that an always defined Position of the die 2 is given in forging.
  • a hydraulic piston 18 on a lever on which another lever 17 is eccentric is attached, which on the one hand about an axis 24 of the die block 15 and on the other hand is rotatably mounted about a bolt 26 of the first lever and the the first lever is additionally around a block bolt 27 of the die block 15 pivotally attached. All swivel axes run transversely to the longitudinal direction 10 and are aligned parallel to each other.
  • Fig. 5 shows - in the direction of view analogous to Fig. 1 or 2 - a transfer device 42, which is not above the base body and above that in FIG. 5 workpiece 7 shown is arranged. 5, the ejection pin 21 is in its advanced position, the ejection position.
  • the transfer device is used by means of two on the transfer device 42 pivotably arranged grippers 40, 41, which together form a pair of pliers, to grasp the workpiece and remove it, for example to a next, next to it, processing station, and / or a new one Insert blank.
  • the transfer device 42 is above the base body 9 in Movable in the transverse direction and preferably comprises - as the illustration in FIG. 4a shows with open grippers looking in the longitudinal direction - at least two or also more pairs of grabs to perform unloading and loading at the same time to be able to.
  • the grippers 40, 41 are so long that they have their free ends can hold the workpiece 7 between them, pivot in the open state the grippers 40, 41 around their above the workpiece, in particular above the Base body 9, arranged pivot axes so far that the free Ends of the grippers 40, 41 do not have the highest point, namely one in Tangent 20 ′ running horizontally in the transverse direction, reach down to the die 2.
  • the grippers 40, 41 - as can best be seen in FIG. 5 - immediately in front of the front end of the die 2, that is, in front of its front Stop surface 2a, positioned.
  • the distance s between the front end surface 2a of the die 2 and the The grippers must be set so that when the die 2 is adjusted there is no collision with the grippers by means of the wedge.
  • the second adjusting device 5 not only the Ejection pin 21, but also the transfer device 42 in the longitudinal direction shifts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Control Of Presses (AREA)
  • Presses And Accessory Devices Thereof (AREA)
EP01985418A 2000-12-18 2001-12-17 Schmiedepresse mit stellvorrichtung auf matrizenseite Expired - Lifetime EP1345715B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10063154 2000-12-18
DE10063154A DE10063154B4 (de) 2000-12-18 2000-12-18 Schmiedepresse mit Stellvorrichtung auf Matrizenseite
PCT/EP2001/014905 WO2002049788A1 (de) 2000-12-18 2001-12-17 Schmiedepresse mit stellvorrichtung auf matrizenseite

Publications (2)

Publication Number Publication Date
EP1345715A1 EP1345715A1 (de) 2003-09-24
EP1345715B1 true EP1345715B1 (de) 2004-11-03

Family

ID=7667697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01985418A Expired - Lifetime EP1345715B1 (de) 2000-12-18 2001-12-17 Schmiedepresse mit stellvorrichtung auf matrizenseite

Country Status (10)

Country Link
US (1) US7082807B2 (ja)
EP (1) EP1345715B1 (ja)
JP (1) JP2004520164A (ja)
AT (1) ATE281258T1 (ja)
BR (1) BR0115705A (ja)
CA (1) CA2424367C (ja)
DE (2) DE10063154B4 (ja)
ES (1) ES2230380T3 (ja)
TW (1) TW544350B (ja)
WO (1) WO2002049788A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100464894C (zh) * 2005-04-05 2009-03-04 运通工业股份有限公司 锻造部件成型机的可调整进料长度的进料装置
US20110158767A1 (en) * 2009-12-29 2011-06-30 Ohio Rod Products Reduced material, content fasteners and systems and methods for manufacturing the same
WO2012124199A1 (ja) * 2011-03-14 2012-09-20 東洋機械金属株式会社 縦型射出成形機
TWI464049B (zh) * 2012-07-26 2014-12-11 Techwin Opto Electronics Co Ltd Injection Molding Machine Lever Mold Extrusion Mechanism

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1718265A (en) * 1924-03-13 1929-06-25 Ward William Lukens Bolt-heading machine
US3559446A (en) 1968-03-29 1971-02-02 Nat Machinery Co The Forging machine
US3599446A (en) * 1969-03-21 1971-08-17 Reid Meredith Inc Terry knit fabric, machine and method of producing same
US4137748A (en) * 1977-09-28 1979-02-06 The National Machinery Company Wedging structure for presses or the like
US4170051A (en) * 1977-10-25 1979-10-09 Textron Inc. Hydraulic and mechanical punch holder adjustment
JPS5994549A (ja) * 1982-11-20 1984-05-31 Sakamura Kikai Seisakusho:Kk ホ−マにおける自動段取替え装置
US4791803A (en) 1985-11-28 1988-12-20 Hatebur Umformmaschinen Ag Die-change device for a multi-stage forming machine
DE3806352A1 (de) * 1988-02-27 1989-09-07 Schuler Gmbh L Vorrichtung zum auswerfen von werkstuecken aus matrizen in einer umformpresse
US4966028A (en) * 1988-11-14 1990-10-30 Kabushiki Kaisha Sakamurakikai Seisakusho Multi-stage cold forging machine
JP2870141B2 (ja) * 1990-07-16 1999-03-10 旭サナック株式会社 ヘツダー
JP3393010B2 (ja) * 1996-05-09 2003-04-07 株式会社阪村機械製作所 圧造成形機におけるパンチの取付位置調整装置
US5704245A (en) * 1996-05-31 1998-01-06 The National Machinery Company Progressive forging machine with individually adjustable tools

Also Published As

Publication number Publication date
ATE281258T1 (de) 2004-11-15
CA2424367A1 (en) 2003-03-28
DE10063154B4 (de) 2005-02-10
WO2002049788A1 (de) 2002-06-27
DE50104436D1 (de) 2004-12-09
ES2230380T3 (es) 2005-05-01
CA2424367C (en) 2007-10-02
US7082807B2 (en) 2006-08-01
BR0115705A (pt) 2003-09-02
JP2004520164A (ja) 2004-07-08
DE10063154A1 (de) 2002-06-27
TW544350B (en) 2003-08-01
US20040040362A1 (en) 2004-03-04
EP1345715A1 (de) 2003-09-24

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