EP2258495B1 - Tête de découpage fin hydraulique pour une presse et procédé pour mouvoir cette dernière - Google Patents

Tête de découpage fin hydraulique pour une presse et procédé pour mouvoir cette dernière Download PDF

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Publication number
EP2258495B1
EP2258495B1 EP20090007352 EP09007352A EP2258495B1 EP 2258495 B1 EP2258495 B1 EP 2258495B1 EP 20090007352 EP20090007352 EP 20090007352 EP 09007352 A EP09007352 A EP 09007352A EP 2258495 B1 EP2258495 B1 EP 2258495B1
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EP
European Patent Office
Prior art keywords
pressure
fine blanking
head according
adjusting nut
hydraulic
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.)
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Application number
EP20090007352
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German (de)
English (en)
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EP2258495A1 (fr
Inventor
Markus Dipl.-Ing. Schaltegger
Alfio M-Ing. Cristofaro
Jürg M-Ing. Ochsenbein
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Feintool Intellectual Property AG
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Feintool Intellectual Property AG
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Publication date
Application filed by Feintool Intellectual Property AG filed Critical Feintool Intellectual Property AG
Priority to EP20090007352 priority Critical patent/EP2258495B1/fr
Priority to AT09007352T priority patent/ATE533574T1/de
Priority to CA2705666A priority patent/CA2705666C/fr
Priority to JP2010126758A priority patent/JP5715769B2/ja
Priority to KR1020100052462A priority patent/KR101722782B1/ko
Priority to CN201010197598XA priority patent/CN101905264A/zh
Priority to US12/792,977 priority patent/US8141482B2/en
Publication of EP2258495A1 publication Critical patent/EP2258495A1/fr
Application granted granted Critical
Publication of EP2258495B1 publication Critical patent/EP2258495B1/fr
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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
    • B30B15/0029—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
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/002—Drive of the tools
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/14—Dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/06—Blanking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8691—Unicyclic
    • Y10T83/8694—With brake or blocking means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8696—Means to change datum plane of tool or tool presser stroke

Definitions

  • the invention relates to a hydraulic fine blanking head for a mechanical press, in particular fineblanking press, which is held on a machine frame of the press head above a table top bearing, a lifting movement performing ram axially aligned with the lifting axis, with a tubular part formed in the headpiece of a flange whose collar is secured against rotation by screw on the side facing the plunger side of the head piece, with a concentric inserted in the tubular part master cylinder, arranged within the master cylinder pistons and bolts, the master cylinder with a pressure-tight lid or a holding plate is closed, and a hydraulic system for supplying the master cylinder with a fluid adjusted to a predetermined pressure.
  • the invention further relates to a method for feeding a hydraulic fine cutting head in a press, in particular fineblanking press, in which guided in the master cylinder of the fine blanking head piston and bolt for generating a pressure and or deformation force with an adjustable pressure of a hydraulic fluid from a high pressure source of a hydraulic Systems are acted upon and the press ram is driven mechanically or hydraulically.
  • the present invention seeks to develop a hydraulic fine cutting head for presses and a method for feeding a fine cutting head of the type mentioned, which is or to prevent the axial clearance between the adjusting elements during the cutting operation safe, to ensure a high infeed and repeat accuracy while improving operational safety in continuous operation.
  • the solution according to the invention is based on the knowledge that the adjustment function for the delivery of the fineblanking head should be integrated into existing functional elements of the head, i. an adjusting mechanism of a provided with an internal movement thread, rotatable about the stroke axis of the plunger lock nut, a frictionally mounted on an end face of the adjusting nut, arranged perpendicular to the Hubachse sprocket, held on the head hydraulic motor with drive shaft, the drive shaft of the motor and the sprocket wraps around Provide drive chain, one on the drive shaft undeliverable brake and attached to the head of the master cylinder outer movement thread.
  • the outer movement thread of the master cylinder is guided by the inner movement thread of the adjusting nut with axial play, wherein the movement thread via a common channel for supplying and discharging the set on a locking or unlocking fluid of the hydraulic system for the purpose of axial game suspension or clearance of the game between the Threads are related.
  • the delivery of the master cylinder with respect to the plunger is done by switching off the engine and switching on the brake as soon as the pistons and bolts are depressurized.
  • the adjusting nut on a shoulder having a paragraph, facing away from the plunger wall portion of the head piece is axially fixed and held by the tubular part of the flange against the lifting movement of the plunger. This makes it possible to reduce the number of parts and the mass of the fine cutting head.
  • the channel for supplying the fluid to the movement threads is connected by a line to a low-pressure hydraulic system via a switchable directional control valve for opening and closing the line.
  • a switchable directional control valve for opening and closing the line.
  • the head piece and the adjusting nut is provided with at least one channel which opens into the movement thread for supplying the thread with lubricant, whereby the ease of movement of the adjusting nut is ensured.
  • at least one further channel for discharging lubricant from the movement threads is provided, so that a continuous lubrication of the movement thread is made possible in each case via a line connected to the channels and connected to a lubricant reservoir.
  • the movement thread of adjusting nut and master cylinder are designed as PSDgegewinde that allow a one-sided static load during axial pressurization with hydraulic fluid under lock pressure, whereby the movement thread of the master cylinder against the movement thread of the adjusting nut and latter against the heel on the head suppressed. All fit games are then canceled and the actuating mechanism is locked in case of concern the displacement or working pressure.
  • An advantageous further embodiment of the fine cutting head according to the invention provides that the hydraulic motor is connected to a connected to a high-pressure hydraulic system feed and a discharge via a pilot proportional valve with which the speed of the motor via the setting to a certain preselectable control pressure is controlled accordingly ,
  • the brake which is operatively connected to the engine, to be connected by a line to the high-pressure hydraulic system via a switchable directional control valve for connecting and disconnecting the brake, thereby enabling an exact positionally accurate infeed of the fineblanking head according to the invention.
  • the drive chain is a hollow bolt chain, which engages expediently in the ring gear on the adjusting nut, wherein the sprocket can be associated with at least one further sprocket whose axis of rotation is arranged offset parallel to the sprocket of the adjusting nut on a supported on the head plate.
  • the sprockets lie horizontally in alignment with each other in a plane, so that a torsion-free drive of the hollow bolt chain is ensured.
  • a keypad is arranged on the plunger facing the holding plate, which is arranged against rotation in the tubular part of the flange axially parallel to the lifting axis guided in holes of the tubular part securing bolt.
  • An embodiment of the fine blanking head according to the invention which is particularly preferred for fineblanking processes provides for a ring-toothed piston for pressing the ring-toothed tooth into a workpiece to be machined, a plurality of ring-toothed pins coaxially supporting the ring-toothed piston and a feeler piston for detecting a stroke path provided between the holding plate and the keypad relative to one another Hubachse lying are added.
  • a the serrated pin coaxial with the lifting axis supporting pressure plate is arranged, in which a center support is provided in alignment of the lifting axis, wherein the Pressure plate is held by a retaining ring on the keypad.
  • the fine blanking head according to the invention is suitable not only for mechanically driven presses but also for hydraulic presses. By integrating the adjustment in the fine blanking succeeds to prevent the axial clearance between the adjusting elements during cutting safely, to ensure a high delivery and repeat accuracy while improving the reliability in continuous operation.
  • Fig. 1 a perspective view of the press with mounted in the head of the press fine cutting head according to the invention
  • Fig. 2 a section of the invention Fine cutting head in retracted state
  • Fig. 3 a section of the fine cutting head according to the invention in the extended state
  • Fig. 4 a top view of Fig. 1 in the extended state of the fine cutting head according to the invention
  • Fig. 5 a representation of the channel for supplying hydraulic fluid into the movement thread of the adjusting mechanism as a section AA of Fig. 4
  • Fig. 6 a perspective view of the actuating mechanism with hydraulic motor and hollow pin chain
  • Fig. 7 a plan view of the hydraulic motor with sprockets
  • Fig. 8 a hydraulic circuit diagram of Kpfver ein.
  • the Fig. 1 shows a perspective view of a mechanically operated fineblanking press of the toggle lever design.
  • the ram 1 of this press carrying a table top carries out a lifting movement in the direction of the lifting axis HU and in the direction of the head piece 2 of the press.
  • the fine cutting head 3 according to the invention is arranged in alignment with the stroke axis HU.
  • the Fig. 2 shows the fine cutting head 3 according to the invention in a sectional view.
  • the fine cutting head 3 is used as a compact unit in a receptacle in the head piece 2 and fixed there in a form-fitting manner.
  • the fine cutting head 3 according to the invention comprises an adjusting nut 6, ring gear 7, hydraulic motor 8, rotary encoder 4, drive chain 9 and master cylinder 10 assembled actuating mechanism 11 (see Fig. 6 ).
  • the rotatable about the stroke axis HU adjusting nut 6 and along the lifting axis HU displaceable master cylinder 10 are provided with movement threads 12 and 13 in the form of mutually matched in the flank angle sawing, which are coaxial with the stroke axis HU engaged, so that upon rotation of the adjusting nut. 6 the master cylinder 10 from a retracted to an extended position (see Figure 3 ) in relation to the plunger 1 can be brought.
  • the master cylinder is adjustable to the plunger 1 in height.
  • the head piece 2 has a step-like shoulder 15 projecting in the direction of the lifting axis HU, which is formed on the inner wall 14 of the head piece 2 on the head side and away from the plunger.
  • the collar 20 of the flange 19 is like Fig. 3 shows fixed on the ram-facing side by screw 21 frontally on the head piece 2.
  • In the collar 20 of the flange 19 are two diametrically opposite lying bores 22 are provided, which are introduced parallel to the lifting axis HU in the interior of the tubular part 18. These bores 22 serve to receive bolt-like anti-rotation devices 23 which axially guide a main plate 24 closing the main cylinder 10.
  • the end 25 of the anti-rotation 23 is fixed by a screw.
  • a serrated piston 27 and a Tastkolben 28 are received axially aligned with each other.
  • the serrated piston 27 is in mechanical abutment with the master cylinder 10.
  • the sensing piston 28 is hydraulically brought into positive connection with the serration pin 27.
  • the serrated pins 29 pass through the main plate 24 and are mounted on a serrated pressure plate 30 which is secured by a ring-holder ring 31 fixed to the scanning table 26.
  • the center support 32 is held, which supports the tool during the technology phase.
  • the master cylinder 10 is closed pressure-tight on the head side with a ring-toothed cover 33.
  • a ring-toothed cover 33 At the upper end face 34 of the adjusting nut 6 of the ring gear 7 is fixed non-positively, which rotates about the drive chain 9, for example, hollow pin chain, and the hydraulic motor 8, the adjusting nut 6 about their coincidence with the stroke axis HU axis.
  • the structure of this drive is described in section [0043].
  • the tubular part 18 of the flange 19 has on its the Hubachse HU facing inner wall 38 in the direction of lifting axis HU projecting step-like upper Paragraph 39 and another arranged below the paragraph 39 in the direction of lifting axis HU protruding paragraph 40.
  • the upper paragraph 39 has compared to the paragraph 40 a significantly larger heel height H, so that the inner wall 38 of the tubular member 18 in two mutually staggered axial support surfaces M1 and M2 is split for slidably supporting a correspondingly formed master cylinder 10.
  • the outer movement thread 13 on the head 41 of the master cylinder 10 extends over the entire length of the inner movement thread 12 of the adjusting nut 6, wherein the outer movement thread 13 on the head 41 of the master cylinder 10 at an upper in the direction of lifting axis HU recessed paragraph 43 of the outer wall 42 of the master cylinder 10 ends.
  • the outer wall 42 has a further lower shoulder 44 offset from the movement thread 13 in the direction of the lifting axis HU, so that two mutually offset support surfaces M3 and M4 for slidably supporting on the lateral surfaces M1 and M2 of the tubular part 18 are formed on the outer wall 42 of the master cylinder 10.
  • the movement threads 12 and 13 of the adjusting mechanism 11 are -as Fig. 2 retracted, so that below the movement threads 12 and 13, a clearance 45 is formed by the upper shoulder 39 of the tubular part 18, the movement thread 13 associated upper shoulder 43 on the outer wall 42 of the master cylinder 10 and the corresponding areas of the inner wall 38 and Outside wall 42 is limited.
  • This space 45 is via a channel 46 in the wall of the tubular part 18 and a channel 47 in the wall of the Head piece 2 is connected to a line 48 for discharging lubricant in a reservoir of a lubrication system not shown.
  • a further channel 49 is guided through the wall of the head piece 2 and a channel 50 through the wall of the adjusting nut 6, wherein the channel 50 opens into the movement thread 12 of the adjusting nut 6 for supplying lubricant.
  • the channel 49 is connected to a line 51, in which via a pump lubricant in the motion thread 12 and 13 can be fed.
  • the main cylinder 10 is supported with its axial support surfaces M3 and M4 on the axial support surfaces M1 and M2 of the tubular member 18 from.
  • an axially extending narrow space 52 Between the lower shoulder 44 of the outer wall 42 of the master cylinder 10 and the lower shoulder 40 of the inner wall 38 of the tubular member 18 is formed an axially extending narrow space 52.
  • a feed channel 54 which leads via a feed line 61 to a pressure line 53 of a Low-pressure hydraulic system is connected.
  • the feed channel 54 penetrates the wall of the Ko 5 and the wall of the tubular part 18.
  • the pressure line 53 is connected to a hydraulic system via a directional control valve 55 (see Fig. 8 ), which reduces the pressure of the hydraulic system to a sufficient magnitude for locking the movement threads 12 and 13.
  • Fig. 3 the fine cutting head 3 according to the invention is shown in the extended state of the movement thread 12 and 13.
  • the master cylinder 10 has moved by the rotation of the adjusting nut 6 with its upper shoulder 43 on the outer wall 42 to the upper shoulder 39 on the inner wall 38 of the tubular member 18 and is at a defined distance from Paragraph 39 held.
  • the maximum infeed height of the fine cutting head 3 with respect to the plunger 1 of the press is determined by means of a rotary encoder 4 on the hydraulic motor 8.
  • the master cylinder 10 has then adjusted the fine blanking plate 24 together with the keypad 26 by a corresponding amount to the plunger 1 out.
  • the Fig. 4 and 5 illustrate the location of the feed channel 56. Via the space 52, the surfaces 40 and 44 are hydraulically pressed in the opposite direction, so that set by the directional control valve 55 locking pressure of the hydraulic fluid can push the movement thread 13 of the master cylinder 10 against the movement thread 12 of the adjusting nut 6, which leads to the locking of the movement thread.
  • the Fig. 6 and 7 show the adjusting mechanism at the head of the fine cutting head according to the invention with the hydraulic motor 8 fixed to the head 2, drive chain 9, for example, hollow pin chain, and the encoder 4.
  • drive chain 9 for example, hollow pin chain
  • the Drive chain 9 wraps around the sprockets 7 and 35 torsion.
  • the hydraulic motor 8 is connected via a supply line 62 and a proportional valve 37 to the high-pressure hydraulic system.
  • a discharge line 58 connects the hydraulic motor 8 via the proportional valve 37 with a tank line 53.
  • Acts on the axis of the ring gear 35 a brake 59, which is connected to a supply line 60 via the directional control valve 55 to the hydraulic system.
  • the hydraulic system consists of a pressure line 62, which is stretched by a pressure source, not shown, to a pressure of 65 bar, and the tank line 53rd
  • the proportional line 37 is pilot-controlled to a presettable target pressure and regulates the applied pressure of the hydraulic fluid to a setting pressure in the range of 0 to 250 bar, preferably 220 bar for the adjusting nut 6 a
  • the proportional valve 37 is designed as a 4/3-way valve with locking middle position, so that the hydraulic motor 8 is always switched from the blocking function in the open function when the locking of the movement thread 12 and 13 described in more detail below and repositioned the fine cutting head 3 according to the invention with respect to the plunger 1 to be made.
  • the proportional valve 37 switches back into the closed position and the brake 59 thus holds the new position. This is done by opening the directional control valve 55,
  • the supply line 53 branches off, the hydraulic fluid via the directional control valve 55 through the channels 54 in the wall of the flange 19 and the tubular member 18 via the channel 56th into the free space 52, which supplies the hydraulic fluid to the actuating mechanism 11.
  • the directional control valve 55 allows the hydraulic fluid to pass, so that a secure locking of the movement thread 12 and 13 is ensured.
  • the motion thread remain locked, so that an adjustment of the feed height of the fine cutting head 3 with respect to the plunger is not possible.
  • the process according to the invention proceeds as follows:
  • the movement thread 12 of the threaded nut 6 and the movement thread 13 of the master cylinder 10 are hydraulically locked in the axial direction during the application of the compressive and deforming force by a permanent supply of a fluid adjusted to locking pressure.
  • the two movement threads are unlocked after completion of the application of the pressure and deformation force by switching off or shutting off the hydraulic fluid, so that the movement thread of the adjusting mechanism have a movement play.
  • a hydraulic motor 8 is set in operation, the sprocket 7 and a drive chain 9, the movement thread 12 of the adjusting nut 6 rotates until the master cylinder 10 its predetermined position with respect to has reached the plunger 1 by means of the encoder 4.
  • the hydraulic motor 8 is switched off by shutting off the hydraulic fluid and brought the drive shaft of the motor 8 with the brake 59 to a standstill.
  • the locking pressure for the movement threads 12 and 13 is switched on again, so that when concerns the Rangkackenund / or forming the movement thread on the force curve are completely free of play.

Claims (15)

  1. Tête de découpage fin hydraulique pour une presse mécanique, en particulier presse de découpage fin, qui est fixée sur une pièce de tête (2) rapportée sur un bâti de machine de la presse, au-dessus d'un poussoir (1) portant un plateau et effectuant un mouvement de levée, en alignement axial avec l'axe de levée (HU) de celui-ci, comportant une partie tubulaire (18) placée dans la pièce de tête (2), d'une bride (19) dont l'épaulement (20) est fixé de façon solidaire en rotation sur la face tournée vers le poussoir de la pièce de tête (2) par des assemblages vissés, un cylindre principal (10) inséré concentriquement dans la partie tubulaire (18), des pistons (27, 28) et boulons (29) disposés à l'intérieur du cylindre principal (10), le cylindre principal (10) étant fermé de manière étanche à la pression par un couvercle (33) resp. une plaque de support (24), et un système hydraulique pour alimenter le cylindre principal (10) avec un fluide réglé à une pression prédéfinie, caractérisée en ce qu'un mécanisme de réglage (11) est prévu, composé d'un écrou de réglage (6) muni d'un filet de déplacement intérieur (12), tournant autour de l'axe de levée (HU), d'une couronne dentée (7) fixée par adhérence sur une face frontale (34) de l'écrou de réglage (6), disposée perpendiculairement à l'axe de levée (HU), d'un moteur hydraulique (8) avec arbre d'entraînement, fixé sur la pièce de tête (2), d'une chaîne d'entraînement (9) enroulant l'arbre d'entraînement du moteur (8) et la couronne dentée (7), d'un frein (59) pouvant être déplacé sur l'arbre d'entraînement, et d'un filet de déplacement extérieur (13) disposé sur la tête (41) du cylindre principal (10) et qui est guidé par le filet de déplacement (12) de l'écrou de réglage (6) avec un jeu axial, lesdits filets de déplacement (12 ; 13) étant en relation avec un canal (56) destiné à amener le fluide, réglé à une pression de réglage, du système hydraulique pour annuler le jeu axial resp. valider le jeu des filets, et en ce que le déplacement du cylindre principal (10) par rapport au poussoir (1) est réglable par branchement et débranchement du moteur (8) et du frein (59).
  2. Tête de découpage fin selon la revendication 1, caractérisée en ce que l'écrou de réglage (6) est fixé axialement sur une partie de paroi dotée d'un épaulement (15) et opposée au poussoir (1) de la pièce de tête (5) et est maintenu contre le mouvement de levée du poussoir par la partie tubulaire (18) de la bride (19).
  3. Tête de découpage fin selon la revendication 1, caractérisée en ce que l'écrou de réglage (6) et la pièce de tête (2) sont pourvus d'au moins un canal (50) qui débouche dans le filet de déplacement pour alimenter les filets en lubrifiant.
  4. Tête de découpage fin selon la revendication 1, caractérisée en ce qu'au moins un canal (46) est prévu dans la partie tubulaire (18) de la bride (19), pour évacuer du lubrifiant des filets de déplacement (12 ; 13).
  5. Tête de découpage fin selon la revendication 3 et 4, caractérisée en ce que les canaux (46, 47) sont raccordés chacun par une conduite (48) à un réservoir de lubrifiant.
  6. Tête de découpage fin selon la revendication 1, caractérisée en ce que les filets de déplacement (12 ; 13) de l'écrou de réglage (6) et du cylindre principal (10) sont des filets en dents de scie.
  7. Tête de découpage fin selon la revendication 1, caractérisée en ce que le moteur hydraulique (8) est relié par une conduite d'alimentation (62) à un système hydraulique haute pression, par l'intermédiaire d'une vanne proportionnelle pilotée (37) destinée au réglage d'une pression de réglage présélectionnable.
  8. Tête de découpage fin selon la revendication 1, caractérisée en ce que le frein (59), en relation fonctionnelle avec le moteur (8), est relié par une conduite (59) à un système hydraulique basse pression, par l'intermédiaire d'une vanne de distribution (55) destinée à brancher et débrancher le frein (59).
  9. Tête de découpage fin selon la revendication 1, caractérisée en ce que le canal (54, 56) pour amener le fluide est relié par une conduite (61) au système hydraulique basse pression, par l'intermédiaire d'une vanne de distribution (55) destinée à ouvrir et fermer la conduite.
  10. Tête de découpage fin selon la revendication 1, caractérisée en ce que la chaîne d'entraînement (9) est une chaîne à boulons creux.
  11. Tête de découpage fin selon la revendication 1, caractérisée en ce qu'une autre couronne dentée (35) est associée à la couronne dentée (7), dont l'axe de rotation décalé parallèlement à la couronne dentée (7) est disposé sur une plaque (57), lesdites couronnes dentées (7, 35) étant alignées horizontalement l'une par rapport à l'autre dans un même plan.
  12. Tête de découpage fin selon la revendication 1, caractérisée en ce qu'une table à palpeur (26) est disposée de façon solidaire en rotation sur la plaque de support (24) tournée vers le poussoir (1), grâce à des boulons de sûreté (23) guidés dans la partie tubulaire (18) de la bride (19) dans des alésages (22), parallèlement à l'axe de levée (HU).
  13. Tête de découpage fin selon la revendication 1 et 12, caractérisée en ce qu'un piston à dentelure annulaire (27) destiné à déplacer la dentelure annulaire, plusieurs boulons à dentelure annulaire (29) et un piston palpeur (28) destiné à détecter une course définie entre plaque de support (24) et table à palpeur (26) l'une par rapport à l'autre, qui sont situés sur l'axe de levée (HU), sont reçus dans le cylindre principal (10).
  14. Tête de découpage fin selon la revendication 13, caractérisée en ce qu'une plaque d'appui (30) supportant plusieurs boulons à dentelure annulaire (29) coaxialement à l'axe de levée (HU) est disposée dans la plaque principale (24) et dans laquelle est prévu un support central (32) pour la plaque d'appui (30) en alignement avec l'axe de levée (HU), ladite plaque d'appui (30) étant fixée sur la table à palpeur (26) par un anneau de blocage (31).
  15. Procédé de déplacement d'une tête de découpage fin hydraulique dans une presse, en particulier presse de découpage fin, dans lequel les pistons et boulons guidés dans le cylindre principal, en vue de produire un effort de pression et/ou de déformation, sont alimentés avec une pression réglable de refoulement resp. de fonctionnement d'un fluide hydraulique provenant d'une source haute pression d'un système hydraulique, et dans lequel le poussoir de la presse est entrainé mécaniquement ou hydrauliquement, caractérisé par les étapes suivantes :
    a verrouiller un mécanisme de réglage (11) composé de filets de déplacement (12 ; 13) d'un écrou de réglage (6) tournant autour de l'axe de levée (HU) dans la pièce de tête de la tête de découpage fin et d'un cylindre principal (10) pendant l'application de l'effort de pression et de déformation par alimentation axiale permanente du fluide via un canal menant au mécanisme de réglage, pour annuler un jeu axial entre les filets de déplacement,
    b déverrouiller les deux filets de déplacement à la fin de l'application de l'effort de pression et de déformation en coupant la pression de verrouillage par fermeture du canal,
    c amener un fluide réglé à une pression d'entraînement à un moteur hydraulique pour actionner le mécanisme de réglage par mise en rotation d'une couronne dentée fixée sur l'écrou fileté au moyen d'une chaîne entraînée par le moteur, jusqu'à ce que le cylindre principal ait atteint une position prédéterminée par rapport à une position de déplacement présélectionnée,
    d arrêter le moteur en coupant l'alimentation du fluide réglé à une pression d'entraînement et amener le fluide passé de la pression de réglage à une pression de freinage pour maintenir la position réglée de la tête de découpage fin, et
    e réalimenter le mécanisme de réglage en pression de verrouillage pour verrouiller les filets de déplacement selon l'étape a.
EP20090007352 2009-06-03 2009-06-03 Tête de découpage fin hydraulique pour une presse et procédé pour mouvoir cette dernière Active EP2258495B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP20090007352 EP2258495B1 (fr) 2009-06-03 2009-06-03 Tête de découpage fin hydraulique pour une presse et procédé pour mouvoir cette dernière
AT09007352T ATE533574T1 (de) 2009-06-03 2009-06-03 Hydraulischer feinschneidkopf für eine presse und verfahren zu dessen zustellung
CA2705666A CA2705666C (fr) 2009-06-03 2010-05-27 Tete de decoupage fin a commande hydraulique pour presse et methode d'alimentation
JP2010126758A JP5715769B2 (ja) 2009-06-03 2010-06-02 プレス用の液圧式精密カッターヘッドおよびこの精密カッターヘッドの高さ位置を調節するための方法
KR1020100052462A KR101722782B1 (ko) 2009-06-03 2010-06-03 프레스용 유압 파인 블랭킹 헤드 및 그 인피드 방법
CN201010197598XA CN101905264A (zh) 2009-06-03 2010-06-03 用于压力机的液压精密冲裁头及其进给方法
US12/792,977 US8141482B2 (en) 2009-06-03 2010-06-03 Hydraulic fine blanking head for a press and method of its infeed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20090007352 EP2258495B1 (fr) 2009-06-03 2009-06-03 Tête de découpage fin hydraulique pour une presse et procédé pour mouvoir cette dernière

Publications (2)

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EP2258495A1 EP2258495A1 (fr) 2010-12-08
EP2258495B1 true EP2258495B1 (fr) 2011-11-16

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US (1) US8141482B2 (fr)
EP (1) EP2258495B1 (fr)
JP (1) JP5715769B2 (fr)
KR (1) KR101722782B1 (fr)
CN (1) CN101905264A (fr)
AT (1) ATE533574T1 (fr)
CA (1) CA2705666C (fr)

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EP3115120A1 (fr) * 2015-07-06 2017-01-11 Feintool International Holding AG Presse pour decoupage fin

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CN102729518B (zh) * 2011-04-13 2015-12-16 昆山永年先进制造技术有限公司 液压机、用于液压机的缸梁结构及其制造方法
DE102012102164B4 (de) * 2012-03-14 2014-04-03 Schuler Pressen Gmbh Verbindungsanordnung eines Antriebselementes an einem Stößel einer Presse
JP6067078B1 (ja) * 2015-09-09 2017-01-25 アイダエンジニアリング株式会社 サーボプレス機械、及びそれに用いるモータ、及びモータ組み付け取り外し方法
CN105301883B (zh) * 2015-11-06 2017-03-22 中国科学院长春光学精密机械与物理研究所 一种xyz三自由度液压调节装置
CN107838967A (zh) * 2017-11-03 2018-03-27 盐城工学院 压实切割机及压实切割设备
US10549393B2 (en) * 2018-06-05 2020-02-04 Universidad Nacional de Itapua Rotary base for securing tools to a work table
EP3736061A1 (fr) * 2019-05-06 2020-11-11 Lapmaster Wolters GmbH Système de découpage fin et son procédé de fonctionnement
CN110252874A (zh) * 2019-06-27 2019-09-20 乐清市小林模具科技有限公司 接线端自动断切模
EP3831590A1 (fr) * 2019-12-05 2021-06-09 Lapmaster Wolters GmbH Coulisseau de presse pour presse de découpage fin
IT202000004432A1 (it) * 2020-03-04 2021-09-04 Ferrari & Carena S R L Metodo di montaggio di pressa per tranciatura fine da 1400 t
CN113102603B (zh) * 2021-05-14 2023-08-01 佛山市天正机械有限公司 一种模切机

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CN106335209A (zh) * 2015-07-06 2017-01-18 法因图尔国际控股股份公司 精冲压力机
CN106335209B (zh) * 2015-07-06 2019-06-21 法因图尔国际控股股份公司 精冲压力机

Also Published As

Publication number Publication date
CN101905264A (zh) 2010-12-08
EP2258495A1 (fr) 2010-12-08
US20110000349A1 (en) 2011-01-06
KR101722782B1 (ko) 2017-04-11
US8141482B2 (en) 2012-03-27
CA2705666C (fr) 2017-02-14
JP5715769B2 (ja) 2015-05-13
CA2705666A1 (fr) 2010-12-03
ATE533574T1 (de) 2011-12-15
JP2010280000A (ja) 2010-12-16
KR20100130565A (ko) 2010-12-13

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