EP1870230A1 - Presse, presse de poinçonnage ou dispositif de formage - Google Patents

Presse, presse de poinçonnage ou dispositif de formage Download PDF

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Publication number
EP1870230A1
EP1870230A1 EP06013045A EP06013045A EP1870230A1 EP 1870230 A1 EP1870230 A1 EP 1870230A1 EP 06013045 A EP06013045 A EP 06013045A EP 06013045 A EP06013045 A EP 06013045A EP 1870230 A1 EP1870230 A1 EP 1870230A1
Authority
EP
European Patent Office
Prior art keywords
press
plunger
piston
forming machine
stamping
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Withdrawn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
EP06013045A
Other languages
German (de)
English (en)
Inventor
Markus Roos
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.)
Haulick and Roos GmbH
Original Assignee
Haulick and Roos 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 Haulick and Roos GmbH filed Critical Haulick and Roos GmbH
Priority to EP06013045A priority Critical patent/EP1870230A1/fr
Publication of EP1870230A1 publication Critical patent/EP1870230A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/041—Guides
    • 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
    • B30B15/0035—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 using an adjustable connection between the press drive means and the press slide

Definitions

  • the invention relates to a press or a stamping or forming machine with a frame, on the upper part of a rotatably driven eccentric shaft is mounted, which is coupled via at least one connecting rod and at least one pushing device with a reciprocating plunger, wherein the pushing device on the upper part of Shelvings mounted and coupled by means of an adjusting device for adjusting the bottom dead center of the plunger.
  • Such presses, stamping or forming machines are from the EP 1 582 337 A1 known. They enable precise machining of a workpiece which is positioned between an upper tool fixed to the ram and a lower tool fixed to a clamping plate of the press or of the stamping or forming machine.
  • the plunger performs a reciprocating movement relative to the platen, wherein it can be held by means of guide elements in the vertical direction displaceable on the frame.
  • the plunger is driven by the eccentric shaft, which is connected via at least one connecting rod and at least one pushing device with the plunger and in turn is rotated by a drive motor.
  • the known press or the punching or forming machine according to the invention also has an adjusting device, with the help of which during operation the position of the bottom dead center of the plunger can be adjusted by the effective length of the thruster is varied.
  • the position of the bottom dead center of the plunger may change, and this change in position may result in a deterioration of the machining quality of a workpiece.
  • Object of the present invention is to develop a press or a stamping or forming machine of the type mentioned in such a way that it has a structurally simpler and easier to assemble construction.
  • the thrust device has a hingedly connected to the connecting rod and slidably mounted in a guide part fixed to the upper piston and an axially immovable and rotatable about its longitudinal axis Piston held push rod, which is adjustably coupled via a threaded connection with the plunger and which is displaceable by means of the adjusting device about its longitudinal axis in rotation.
  • the displaceable mounting of the thrust device is decoupled from the adjustment of the position of the bottom dead center of the plunger.
  • the displaceable bearing takes place by means of the displaceably held in the guide member piston, which is pivotally connected to the connecting rod.
  • the piston performs a reciprocating motion, but to adjust the effective length of the pusher, the piston need not be rotated.
  • the adjustment of the effective length of the thrust device is effected in that the push rod is rotated by means of the adjusting device about its longitudinal axis in rotation.
  • the push rod is rotatably mounted on the piston and is guided by this in the axial direction. It can be set in rotation by the adjusting device without the rotary movement being transmitted to the piston.
  • the effective length of the thrust device can be changed because the push rod is coupled via the threaded connection with the plunger. By rotating the push rod thus an axial change in position of the plunger can be generated.
  • the piston may have a relatively large diameter. This results in a relatively low surface pressure of its contact surface on the guide part, whereby the load on the piston is reduced. Since only the push rod, but not the piston for adjusting the position of the bottom dead center of the plunger must be rotated, a relatively short-sized adjustment can be used, the height is determined in the vertical direction only by the lifting height of the machine.
  • the construction according to the invention also has the advantage that the adjusting device has no guide function, the axial guidance of the thrust device takes place by means of the displaceably mounted in the guide member piston. Transverse forces of the connecting rod are absorbed by the piston and transmitted from this via the guide member on the frame.
  • the rotational movement of the push rod is transmitted via the threaded connection in a linear movement of the plunger.
  • the effective length of the pusher can thereby be changed in a simple manner during the operation of the machine. If a change is not required, then the threaded connection between the push rod and the plunger can be blocked in a structurally simple manner. As a result, all game shares in the thread can be eliminated. This in turn increases the machining quality of the machine and also its service life.
  • the adjusting device is arranged on the upper part of the frame.
  • such an arrangement is not absolutely necessary It would also be conceivable to position the adjusting device on the plunger.
  • the storage on the upper part of the frame has the advantage that the adjustment is not subject to the reciprocating motion of the plunger, so that the mechanical load of the adjustment is reduced and acting on the adjusting lateral forces can be transmitted directly to the frame.
  • the adjusting device on a rotatably connected to the push rod worm wheel, which meshes with a motor-driven worm.
  • the worm wheel is conveniently held axially immovably on the guide member.
  • the guide member thus serves for one of the axial guidance of the piston and on the other hand it can form a housing which receives the worm wheel and also the motor-driven worm. This allows a particularly compact design and increases the ease of installation of the entire construction.
  • the guide part may for example have a guide cylinder, in which the piston is mounted displaceably back and forth.
  • the guide member is formed as a gear housing, which is fixed to the upper part of the frame and forms a guide cylinder which supports the piston displaceable in the axial direction.
  • To the guide cylinder may adjoin the adjusting device in the direction of the plunger, which can be received by the transmission housing. From the gear housing may protrude in the direction of the plunger, the push rod, said the corresponding opening of the transmission housing can be sealed by means of at least one sealing ring, which bears against the outside of the push rod.
  • the push rod is designed in several parts. It can be provided, for example, that the push rod is formed by three rod parts which are releasably connected to each other, for example, are screwed together.
  • a first rod member may be rotatably connected to the piston. It is advantageous if the first rod part is also in operative connection with the adjusting device for rotating the push rod about its longitudinal axis.
  • a second rod part can connect in the direction of the plunger to the first rod part and on the outside form a sealing surface on which bears at least one held on the gear housing sealing ring.
  • a third rod part of the push rod can connect, which is connected via a threaded connection with the plunger.
  • the push rod carries in its end portion facing the plunger an external thread and is screwed into a rotatably held on the plunger threaded nut.
  • the push rod in its end region facing the plunger forms a threaded nut, which receives a threaded pin rotationally fixedly held on the plunger.
  • the threaded connection between the push rod and the plunger can be blocked. Thereby can eliminating all game shares on the thread between the push rod and the plunger, and this in turn allows a more accurate machining of a workpiece.
  • the blockage of the threaded connection must be released only for adjusting the position of the bottom dead center of the plunger.
  • a controllable clamping element is arranged to block the threaded connection on the plunger.
  • the clamping element is designed as an elastically deformable threaded nut.
  • the threaded nut is fixed to the plunger and the push rod is screwed into the threaded nut.
  • the threaded nut is elastically deformable.
  • the threaded nut for hydraulic deformation is acted upon hydraulically.
  • the threaded nut is surrounded by an annular space which can be acted upon by pressurized hydraulic fluid.
  • the piston is pivotally connected to the connecting rod. It is advantageous if a joint part, for example a pivot pin or a ball joint, is used, which is clamped between the piston and a releasably connected to the piston holding part. This allows a very simple assembly and disassembly of the hinge connection. To disassemble it is only necessary to remove the holding part of the piston. As a result, the hinge part is exposed and the hinge connection between the connecting rod and the piston can be solved in a simple manner. Vice versa it is only necessary for the manufacture of the joint connection to clamp the joint part between the piston and the holding part, wherein the holding part is releasably connected to the piston.
  • a joint part for example a pivot pin or a ball joint
  • the holding part is formed in a preferred embodiment of the invention as a lid, which covers the piston on the upper side.
  • the lid can be immersed together with the piston in the guide part. This allows a particularly compact and easy to install embodiment of the machine according to the invention.
  • a punching or forming machine is shown schematically, which is generally designated by the reference numeral 10. It has a frame-like frame 12 with a frame base 14 and a frame top 15. The frame top 15 is supported by means of four in a horizontal plane at the vertices of a rectangle arranged stand 16 on the frame base 14.
  • At Gestelloberteil 19 is an eccentric shaft 18 rotatably supported by a plurality of rolling or sliding bearing, which is rotatably driven by a known per se and therefore not shown in the drawing drive motor.
  • the eccentric shaft 18 serves to drive a plunger 20, which is coupled via two connecting rods 22, 23 and these respectively downstream thrust devices 24 and 25 with the eccentric shaft 18.
  • the design of the thrusters 24, 25 will be described in more detail below.
  • the plunger 20 On the plunger 20 are each a stator 16 adjacent a total of four guide columns 26 defined, which are each mounted by means of a first rolling guide 27 on the frame top 15 and by means of a second rolling guide 28 on the frame base 14 in the vertical direction.
  • the first rolling guides 27 are above a belt running plane 30 and the second rolling guides 28 are positioned below the belt running plane 30.
  • the strip running plane 30 forms the plane within which workpieces to be processed are positioned during operation of the punching machine 10.
  • rolling guides 27, 28 and sliding guides can be used, in particular hydrodynamically or hydrostatically lubricated sliding guides.
  • the sliding guides can be designed in the form of flat guides or in the form of circular guides.
  • the use of a total of four guide columns results in an eightfold storage of the plunger 20 on the frame 12, wherein the guide columns 26 above and below the strip running plane 30 can be performed without play in prestressed rolling elements.
  • the distance of the rolling guides 27, 28 may be a multiple of the maximum lifting height of the plunger 20, so that the guides of the plunger 20 may be configured particularly tipping.
  • the plunger 20 has an end face 32, which faces a platen 34 of the frame base 14. Upper tools can be mounted on the front side 32 and lower tools can be mounted on the clamping plate 34 for machining the workpieces in the strip running plane 30.
  • the connecting rods 22 and 23 are rotatably mounted on the eccentric shaft 18 and articulated with its eccentric shaft 18 facing away from the end of the thrust device 24 and 25 respectively.
  • the vertical movement of the connecting rods 22 and 23 can thus be transmitted via the respectively associated pushing device 24 or 25 to the plunger 20.
  • the thrusters 24 and 25 each include a piston 37 which is slidably mounted in a guide member in the form of a guide cylinder 38.
  • the guide cylinder 38 is lined by a guide bush 39 which receives the piston 37.
  • the guide cylinder 38 is part of a transmission housing 41 which is fixed to the bottom 42 of the Gestelloberteils 15.
  • the gear housing 41 surrounds an adjusting device 44 with a worm wheel 45 and a driving this worm 46 which meshes with the worm wheel 45 and with a known to those skilled and therefore not shown in the drawing to achieve a better overview engine, preferably a servomotor, is in rotary connection.
  • the piston 37 is connected to the plunger 20.
  • the thrust devices 24, 25 comprise a three-part push rod 51 with a rod upper part 52, a rod middle part 53 and a rod lower part 54.
  • the rod upper part 52 is essentially mushroom-shaped or T-shaped and dives with a rod head 56 into an associated receptacle 57 of the piston 37, which is arranged on the connecting rod 22 and 23 facing away from the underside of the piston 37.
  • the rod head 56 is engaged by a bottom plate 58, which is screwed to the piston 37 and is surrounded in the circumferential direction by a lower-side collar 59 of the piston 37.
  • the rod upper part 52 is immovable on the piston 37 in the axial direction, but held freely rotatable about the longitudinal axis 61 of the push rod 51.
  • the rod upper part 52 of the worm wheel 45th surrounded, which by means of a known per se and therefore not shown in the drawing key rotatably connected to the upper pole part 52.
  • the bar middle part 53 adjoins the upper bar part 52, which is screwed to the upper bar part 52 and forms a sealing surface 63 on the outside.
  • the sealing surface 63 are two sealing rings 64, which are each held in an annular groove which is formed in a bottom trough 66 of the gear housing 41.
  • the rod middle part 53 is screwed to the rod base 54.
  • the latter carries in its the ram 20 facing end portion of an external thread 68, passes through a sleeve 70 and is screwed into a threaded nut 72 which is rotatably held in the plunger 20.
  • the threaded nut 72 forms a clamping part and is elastically deformable. It can be acted upon externally hydraulically for clamping and is surrounded for this purpose by an annular oil receiving space 73, the pressurized hydraulic oil can be supplied. This makes it possible to block or release the threaded connection between the rod base 54 and the threaded nut 72 as needed.
  • the plunger 20 can be driven to reciprocate relative to the platen 34.
  • the eccentric shaft 18 is rotated. Due to their eccentric bearing, the connecting rods 22, 23 perform a reciprocating motion, which is transmitted via the piston 37 and the push rods 51 to the plunger 20.
  • the pistons 37 are displaceably mounted in the guide cylinders 38, so that occurring transverse forces can be transmitted from the connecting rod 22 and 23 via the piston 37 and the guide cylinder 38 on the Gestelloberteil 15, whereas vertical forces from the connecting rod 22 and 23 via the piston 37 and the push rod 51st be transferred directly to the plunger 20.
  • the effective length of the thrusters 24, 25 can be changed during operation of the punching machine 10.
  • the motor coupled with the worm 46 is activated, so that a rotational movement can be transmitted from the worm 46 to the worm wheel 45 and the push rod 51 connected thereto in a rotationally fixed manner.
  • the push rod 51 is freely rotatably mounted on the piston 37 about its longitudinal axis 61, when adjusting the effective length of the thrust means 24, 25, only the push rod 51 is subject to a rotational movement, but not the piston 37.
  • the threaded nut 72 is relieved, so that by rotating the push rod 51 via the threaded connection an axial change in position of the plunger 20 can be caused. After rotation of the push rod 51, the nut 72 can be hydraulically acted upon again to eliminate any play between the push rod 51 and the plunger 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
EP06013045A 2006-06-23 2006-06-23 Presse, presse de poinçonnage ou dispositif de formage Withdrawn EP1870230A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06013045A EP1870230A1 (fr) 2006-06-23 2006-06-23 Presse, presse de poinçonnage ou dispositif de formage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06013045A EP1870230A1 (fr) 2006-06-23 2006-06-23 Presse, presse de poinçonnage ou dispositif de formage

Publications (1)

Publication Number Publication Date
EP1870230A1 true EP1870230A1 (fr) 2007-12-26

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EP06013045A Withdrawn EP1870230A1 (fr) 2006-06-23 2006-06-23 Presse, presse de poinçonnage ou dispositif de formage

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EP (1) EP1870230A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102794921A (zh) * 2011-05-24 2012-11-28 辽宁鑫能机械设备制造有限公司 高效节能柱塞式秸秆燃料成型机
CN104816495A (zh) * 2015-04-16 2015-08-05 济南铸造锻压机械研究所有限公司 滑块长度调整机构及曲柄连杆传动机构
CN107732624A (zh) * 2017-09-22 2018-02-23 鹤壁海昌专用设备有限公司 一种线束端子压接机驱动机构

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE527272C (de) * 1929-08-23 1931-06-15 Eumuco Akt Ges Fuer Maschb Elektrisch angetriebene Schmiedepresse
EP0273604A1 (fr) * 1986-12-04 1988-07-06 Kabushiki Kaisha Kosmek Dispositif de réglage en hauteur d'un coulisseau de presse mécanique
US4923386A (en) * 1987-12-17 1990-05-08 Mitsubishi Denki Kabushiki Kaisha Apparatus for forming leads of a semiconductor device
EP0649733A1 (fr) * 1993-08-23 1995-04-26 Aida Engineering Ltd. Dispositif de correction de la position du point mort d'une presse mécanique
EP0659546A1 (fr) * 1993-12-27 1995-06-28 Aida Engineering Ltd. Dispositif de réglage de la position du point mort bas d'une presse mécanique
JP2001079697A (ja) * 1999-09-16 2001-03-27 Komatsu Ltd プレス機械のダイハイト調整装置
EP1258341A2 (fr) * 2001-05-17 2002-11-20 Aida Engineering, Ltd. Presse avec mécanisme de suspension
US20030200879A1 (en) * 2002-04-26 2003-10-30 Komatsu Ltd. Die height adjusting device for pressing machine
US20030217651A1 (en) * 2002-05-22 2003-11-27 Brewer W. Craig Method and apparatus for eliminating free clearances in a press shutheight adjustment mechanism
EP1582337A1 (fr) * 2004-03-30 2005-10-05 Haulick + Roos GmbH Presse, presse de poinçonnage ou dispositif de formage

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE527272C (de) * 1929-08-23 1931-06-15 Eumuco Akt Ges Fuer Maschb Elektrisch angetriebene Schmiedepresse
EP0273604A1 (fr) * 1986-12-04 1988-07-06 Kabushiki Kaisha Kosmek Dispositif de réglage en hauteur d'un coulisseau de presse mécanique
US4923386A (en) * 1987-12-17 1990-05-08 Mitsubishi Denki Kabushiki Kaisha Apparatus for forming leads of a semiconductor device
EP0649733A1 (fr) * 1993-08-23 1995-04-26 Aida Engineering Ltd. Dispositif de correction de la position du point mort d'une presse mécanique
EP0659546A1 (fr) * 1993-12-27 1995-06-28 Aida Engineering Ltd. Dispositif de réglage de la position du point mort bas d'une presse mécanique
JP2001079697A (ja) * 1999-09-16 2001-03-27 Komatsu Ltd プレス機械のダイハイト調整装置
EP1258341A2 (fr) * 2001-05-17 2002-11-20 Aida Engineering, Ltd. Presse avec mécanisme de suspension
US20030200879A1 (en) * 2002-04-26 2003-10-30 Komatsu Ltd. Die height adjusting device for pressing machine
US20030217651A1 (en) * 2002-05-22 2003-11-27 Brewer W. Craig Method and apparatus for eliminating free clearances in a press shutheight adjustment mechanism
EP1582337A1 (fr) * 2004-03-30 2005-10-05 Haulick + Roos GmbH Presse, presse de poinçonnage ou dispositif de formage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102794921A (zh) * 2011-05-24 2012-11-28 辽宁鑫能机械设备制造有限公司 高效节能柱塞式秸秆燃料成型机
CN102794921B (zh) * 2011-05-24 2015-06-03 辽宁鑫能机械设备制造有限公司 高效节能柱塞式秸秆燃料成型机
CN104816495A (zh) * 2015-04-16 2015-08-05 济南铸造锻压机械研究所有限公司 滑块长度调整机构及曲柄连杆传动机构
CN104816495B (zh) * 2015-04-16 2016-06-08 济南铸造锻压机械研究所有限公司 滑块长度调整机构及曲柄连杆传动机构
CN107732624A (zh) * 2017-09-22 2018-02-23 鹤壁海昌专用设备有限公司 一种线束端子压接机驱动机构

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