EP1507650B1 - Presse a main - Google Patents

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Publication number
EP1507650B1
EP1507650B1 EP03720381A EP03720381A EP1507650B1 EP 1507650 B1 EP1507650 B1 EP 1507650B1 EP 03720381 A EP03720381 A EP 03720381A EP 03720381 A EP03720381 A EP 03720381A EP 1507650 B1 EP1507650 B1 EP 1507650B1
Authority
EP
European Patent Office
Prior art keywords
press
clutch
stroke
ram
press ram
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
EP03720381A
Other languages
German (de)
English (en)
Other versions
EP1507650A1 (fr
Inventor
Hartmut Babiel
Werner Schubert
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.)
Gebrueder Schmidt Fabrik fuer Feinmechanik GmbH and Co KG
Original Assignee
Gebrueder Schmidt Fabrik fuer Feinmechanik GmbH and Co KG
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 Gebrueder Schmidt Fabrik fuer Feinmechanik GmbH and Co KG filed Critical Gebrueder Schmidt Fabrik fuer Feinmechanik GmbH and Co KG
Publication of EP1507650A1 publication Critical patent/EP1507650A1/fr
Application granted granted Critical
Publication of EP1507650B1 publication Critical patent/EP1507650B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B30B15/14—Control arrangements for mechanically-driven presses
    • B30B15/142—Control arrangements for mechanically-driven presses controlling the brake or the clutch
    • 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
    • B30B1/24—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 rack-and-pinion 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
    • B30B15/0094—Press load monitoring 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
    • B30B15/10—Brakes specially adapted for presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
    • B30B15/288—Arrangements for preventing distortion of, or damage to, presses or parts thereof preventing over-run or reverse-run of the press shaft

Definitions

  • the invention relates to a hand-operated press with an actuator whose movement is converted into a lifting movement of a press ram, wherein a lifting lock is provided to prevent a predetermined lifting movement of the press ram.
  • a press of the aforementioned type, in which the stroke lock is designed as remindhubsperre is from the DE 199 59 627 A1 known.
  • Hand-operated presses of the type described above are usually used in chord workstations. Since the effort of manually pressing the press increases toward the end of the press stroke, some operators tend to incomplete the press stroke and initiate the return stroke before reaching the intended lower end point of the press stroke. Then, however, the pressing process is not completed correctly, so that inferior quality pressed workpieces or even broke arise.
  • the return stroke lock is constructed mechanically.
  • the mechanical remindhubsperre is realized by a Nutenthrough with a locking pin.
  • the Nutenthrough Upon actuation of a hand lever of the press the Nutenusion is rotated and the locking bolt runs in a predetermined groove track of the grooved disc.
  • the groove track has steps at two positions corresponding to the end of the rough stroke and the end of the fine stroke, respectively.
  • the locking pin Once the locking pin has skipped a step, the groove plate can not be rotated backwards over the stage, ie the press ram no longer be moved back up. Only when the press ram has passed through the entire pressing stroke, the locking pin comes into a position in which he can automatically return to the beginning of the groove track. This means that the press ram only can be moved back to its original position after fully traveled way back up.
  • a first problem is that conventional manual press operations are not documented, unlike automatically performed press operations which typically employ numerically controlled pneumatic presses. This is no longer acceptable in many applications today, especially if manufacturing processes are to be ISO 9000 certified.
  • a second problem with hand-operated presses of the type mentioned is that for each pressing an individual Nutenin must be made. This is due to the fact that the length of the rough stroke and the length of the fine stroke each depend individually on the workpieces to be joined. All this, however, has a disadvantageous effect in so-called sequential multiple compression. Namely, in such operations, several parts are successively assembled in several pressing operations, for example, a Seegering, a bearing, a crack, a seal, etc. are successively added to a shaft.
  • the document FR 2 041 420 relates to an electromagnetically assisted control device for manual hot glueing.
  • press models There are several press models that are operated either manually or by levers and control levers. Alternatively, they can be automatically controlled using conventional mechanical or pneumatic means. Manual presses require the exercise of a large force or perform large amplitude movements.
  • the document FR 2 041 420 discloses a supported control device applicable to manual presses having a heat frame.
  • the heat frame is used for hot bonding of fibers and is characterized in that the support mechanism is used only at low strengths of products to be bonded only when the frame is only 3 mm apart.
  • the upper frame is movable about an axis and its temperature can be increased by at least 35 ° C, with a sufficient clearance is ensured, so that the workplace is well visible.
  • the stroke is ensured by an electromagnet.
  • the lower frame is attached to one end of an arm.
  • the invention has the object of developing a hand-operated press of the type mentioned in such a way that the described problems are avoided.
  • a hand-operated press is to be made available, the pressing operations are documented, in which easily and without mechanical interventions and Mehrfachverpressungen can be performed and finally provides the opportunity to provide provisions that a departure of bad parts are ensured with high probability can.
  • the lifting lock has a first sensor for continuously detecting the lifting movement of the press ram and a function of signals of the first sensor actuated clutch, with a power transmission between the actuator and the press ram is preventable.
  • the lifting lock is realized electronically opens up the possibility, unlike previously, of being able to document pressing operations, so that for the first time manufacturing processes with hand-operated presses can be certified in accordance with ISO 9000.
  • the control by means of sensor signals used in the press according to the invention also has the advantage that the locking points of the lift lock are programmable from the outside, so that the press can be parameterized and remotely controlled.
  • appropriate programming can therefore perform the aforementioned sequential Mehrfachverpressungen, because the locking points to be set for this purpose, for example, for each three or four consecutive pressing operations, can be adjusted individually, to then repeat cyclically.
  • the press can be provided in a conventional manner with a gearboxsperre, which prevents a return stroke of the press ram before it has reached a predetermined end position.
  • the Hubsperre can also be designed as Hästubsperre, which prevents further Schwarziolo the press ram over a predetermined stroke position addition.
  • the press ram can be firmly fixed in space by means of the coupling.
  • This measure has the advantage that the entire press is immobilized, so that an operator can no longer make any manipulations to the press if, contrary to the requirement, a return stroke is initiated before reaching the end point of the pressing stroke.
  • the actuating member is formed in a conventional manner as an actuating lever which is connected to a shaft which rotates during a pivoting movement of the actuating lever becomes.
  • a first disc is rotatably mounted on the shaft, next to the first disc, a second space-fixed disc is arranged and the discs are formed as clutch discs of the clutch.
  • This measure has the advantage that an angle sensor can be used to detect the lifting movement of the press ram, for example a commercially available angle sensor which detects the increment marks arranged on the circumference of the rotatable disk.
  • a sensor may for example be fork-shaped or the like.
  • the coupling can also be switched on in the force flow between the actuating member and the press ram. In this case, it is also prevented that a return stroke of the press ram is initiated by a movement of the actuator in the wrong direction, because the actuator idles when the clutch is actuated, since a power transmission is suppressed on the press ram.
  • the coupling is a magnetic coupling. But it can also be operated pneumatically or hydraulically.
  • this measure has the advantage that commercially available components can be used, which are easy to assemble and control.
  • a second sensor for detecting the pressing force exerted by the press ram and means are provided in order to derive a signal characterizing the quality of the pressing process from the dependence of the pressing force on the lifting movement.
  • This measure has the advantage that an immediate quality control via a force-displacement diagram is now also possible for manually operated presses, which particularly accommodates the desired certifiability.
  • the invention makes use of the extent that for the realization of the already described electronic remindhubsperre a first sensor must be provided for the press stroke, which can then be used as a secondary benefit for creating force-displacement diagrams.
  • a particularly preferred development of the latter variant is that at the end of a pressing operation, the power transmission between the actuator and press ram first interrupted and only released again when the signal corresponds to a good pressing operation.
  • This measure has the advantage that only in the cases an immediate removal of the pressed workpiece is possible in which the aforementioned quality control has recognized a good part. Only then will the next pressing process be released. In all other cases, the poorly pressed workpiece remains in the press and then it takes special measures to remove this bad part of the press, whereby sufficient attention has been created to ensure proper disposal of the bad part.
  • the single FIGURE shows an extremely schematic side view (partially broken away) of an embodiment of a hand-operated press according to the invention.
  • 10 generally indicates a hand-operated press of basically known type.
  • the press 10 has a base part 12 which stands on a suitable base, for example a workbench. From the base part 12, supports 14 lead upwards to a head part 16 whose housing is indicated at 17. Laterally on the head part 16, an actuating lever 18 can be seen, which is connected to a mounted in bearings 19 in the housing 17 shaft 20. On This way can be rotated by pivoting the actuating lever 18, the shaft 20 about its axis 22, as indicated by an arrow 24.
  • a very schematically indicated gear 26 in the simplest case, a pinion-rack arrangement. This serves to implement the rotational movement of the shaft 20 in a direction indicated by an arrow 28 vertical lifting movement of a press ram 30.
  • Its lower end face 32 sets in the pressing operation on an upper workpiece 34 of a pair of workpieces 34, 36 which are to be pressed together.
  • the press is of conventional design.
  • the press 10 has a first disk 40 which is non-rotatably connected to the shaft 20.
  • a second disc 42 which, as indicated by the sectional view in the figure, is formed as a ring, so that the shaft 20 can be passed through the second disc 42 therethrough.
  • the second disc 42 is rigidly connected by means of a support 43 to the housing 17 and therefore spatially fixed.
  • a clutch which comprises both discs 40, 42, wherein the discs 40, 42 serve as clutch discs.
  • the coupling 44 is preferably a magnetic coupling. However, it can also be performed with pneumatic or hydraulic actuation.
  • the coupling 44 is preferably a magnetic coupling. It is electrically connected to an electronic control unit 46.
  • the electronic control unit 46 can be supplied via inputs 48 control signals from the outside, for example, from a numerical control unit.
  • a first sensor 50 is arranged, which cooperates with marks on the first disk 40, in particular with increment marks, which are arranged on the circumference of the first disk 40.
  • the first sensor 50 may be rod-shaped, fork-shaped or the like. It detects the rotation of the first disc 40 and thus on the transmission factor of the transmission 26, the lifting movement and thus the path of the press ram 30.
  • the first sensor 50 is also connected to the electronic control unit 46.
  • the press ram 30 may be provided with a second sensor 52, with which the respective pressing force can be detected. Also, the second sensor 52 is connected to the electronic control unit 46.
  • a first sensor 50 is provided for detecting the displacement of the press ram 30, one can make use of this invention, by the second sensor 52 is provided for measuring force in a conventional manner. Then, namely, the electronic control unit 46 form a force-displacement diagram and thereby generate a criterion for whether the workpieces 34, 36 were "good” or "bad” pressed.
  • the force-displacement diagrams can be retrieved by the electronic control unit 46 and fed to a central data processing unit in order to document the entire production process.
  • the control of the press 10 can preferably be adjusted via the electronic control unit 46 so that at the end of the pressing process, the clutch 44 is closed and thus the entire arrangement is first immobilized.
  • This immobilization causes the press 10 initially can not be operated. Of course, this condition is maintained only until the quality of the just completed pressing process has been determined. If this check shows that a good part has been produced, the coupling 44 is released immediately and the operator can remove the pressed workpiece and start the next pressing operation.
  • the coupling 44 remains closed, so that the operator can no longer carry out any further pressing operations with the press 10. Only when overridden by the electronic control unit 46, the lock is released, i. the clutch 44 is opened again by a corresponding higher-level signal can be continued with the pressing operations. Since all this requires the intervention of a superior person and thus the process has attracted a certain amount of attention, it can also be ensured in this way that the bad part produced is actually disposed of in the manner intended and not mistakenly returned to the good parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)
  • Press Drives And Press Lines (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Claims (13)

  1. Presse à commande manuelle (10) pourvue d'un organe de commande, dont le mouvement est converti en un mouvement de levage d'un coulisseau de presse (30), dans laquelle il est prévu un arrêt de course pour empêcher un mouvement de levage prédéterminé du coulisseau de presse (30), caractérisée en ce que l'arrêt de course présente un premier capteur (50) pour l'enregistrement en continu du mouvement de levage du coulisseau de presse (30), ainsi qu'un couplage (44) commandé en fonction de signaux du premier capteur (50), à l'aide duquel peut être empêchée une transmission de force entre l'organe de commande et le coulisseau de presse.
  2. Presse selon la revendication 1, caractérisée en ce que l'arrêt de course est un arrêt de course de retour, qui empêche un mouvement de course de retour du coulisseau de presse (30), avant que celui-ci n'ait atteint une position finale prédéterminée.
  3. Presse selon la revendication 1, caractérisée en ce que l'arrêt de course est un arrêt de course de travail, qui empêche un autre mouvement de course de travail du coulisseau de presse (30) au-delà d'une position de levage prédéterminée.
  4. Presse selon l'une quelconque ou plusieurs des revendications 1 à 3, caractérisée en ce que le coulisseau de presse (30) peut être fixé de manière stabilisée au moyen du couplage (44).
  5. Presse selon la revendication 4, caractérisée en ce que l'organe de commande se présente sous la forme d'un levier de commande (18), qui est raccordé à un arbre (20), qui est soumis à une torsion lors d'un mouvement pivotant du levier de commande (18).
  6. Presse selon la revendication 5, caractérisée en ce que l'on aménage de manière solidaire en rotation un premier disque (40) sur l'arbre (20), on aménage à côté du premier disque (40) un second disque stabilisé (42) et on conçoit les disques (40, 42) sous la forme de disques du couplage (44).
  7. Presse selon la revendication 6, caractérisée en ce que le premier capteur (50) coopère avec des repères ménagés sur le premier disque (40).
  8. Presse selon l'une quelconque ou plusieurs des revendications 1 à 7, caractérisée en ce que le couplage (44) est enclenché dans le flux de force entre l'organe de commande et le coulisseau de presse (30).
  9. Presse selon l'une quelconque ou plusieurs des revendications 1 à 8, caractérisée en ce que le couplage (44) est un couplage magnétique.
  10. Presse selon l'une quelconque ou plusieurs des revendications 1 à 8, caractérisée en ce que le couplage est un couplage pneumatique.
  11. Presse selon l'une quelconque ou plusieurs des revendications 1 à 8, caractérisée en ce que le couplage est un couplage hydraulique.
  12. Presse selon l'une quelconque ou plusieurs des revendications 1 à 11, caractérisée en ce qu'il est prévu un second capteur (52) pour enregistrer la force de compression exercée par le coulisseau de presse (30), ainsi qu'un moyen pour induire un signal caractérisant la qualité de l'opération de presse en fonction de la force de compression du mouvement de levage.
  13. Presse selon la revendication 12, caractérisée en ce qu'à la fin d'une opération de presse, la transmission de force entre l'organe de commande et le coulisseau de presse (30) est d'abord interrompue, puis autorisée à nouveau lorsque le signal correspond à une bonne opération de presse.
EP03720381A 2002-05-16 2003-03-28 Presse a main Expired - Lifetime EP1507650B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10223153 2002-05-16
DE10223153A DE10223153C1 (de) 2002-05-16 2002-05-16 Handbetätigte Presse
PCT/EP2003/003238 WO2003097339A1 (fr) 2002-05-16 2003-03-28 Presse a main

Publications (2)

Publication Number Publication Date
EP1507650A1 EP1507650A1 (fr) 2005-02-23
EP1507650B1 true EP1507650B1 (fr) 2009-08-26

Family

ID=7714573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03720381A Expired - Lifetime EP1507650B1 (fr) 2002-05-16 2003-03-28 Presse a main

Country Status (5)

Country Link
EP (1) EP1507650B1 (fr)
AT (1) ATE440719T1 (fr)
DE (2) DE10223153C1 (fr)
ES (1) ES2329353T3 (fr)
WO (1) WO2003097339A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005034424B4 (de) 2005-07-13 2007-09-27 Gebr. Schmidt Fabrik für Feinmechanik GmbH & Co. KG Handbetätigte Presse mit Überlastsicherung
DE102011080030A1 (de) * 2011-07-28 2013-01-31 Hartmut Babiel Handbetätigte Presse

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2041420A5 (fr) * 1969-04-23 1971-01-29 But Ste
FR2286339A1 (fr) * 1974-09-24 1976-04-23 Lbm Presses Dispositif de protection anti-chute d'un plateau mobile de presse
DE3533003A1 (de) * 1985-09-16 1987-03-26 Schmidt Feintechnik Gmbh Handbetaetigbare presse
DE4314062C2 (de) * 1993-04-29 1996-02-01 Schmidt Feinmech Handbetätigbare Presse
DE19705462C2 (de) * 1997-02-13 2002-01-10 Schmidt Feinmech Verfahren zum Betreiben einer Elektropresse
JPH11230191A (ja) * 1998-02-13 1999-08-27 Kodera Denshi Seisakusho:Kk 手動動力伝達クラッチ
DE19959627C2 (de) * 1999-12-10 2002-05-02 Schmidt Feinmech Handbetätigte Presse mit Not-Entriegelungsknopf

Also Published As

Publication number Publication date
DE50311851D1 (de) 2009-10-08
WO2003097339A1 (fr) 2003-11-27
EP1507650A1 (fr) 2005-02-23
ATE440719T1 (de) 2009-09-15
ES2329353T3 (es) 2009-11-25
DE10223153C1 (de) 2003-07-31

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