EP0143257B1 - Raccordement d'outil d'une presse de découpage, notamment d'une presse de découpage à plateau revolver, pour le changement d'outil - Google Patents

Raccordement d'outil d'une presse de découpage, notamment d'une presse de découpage à plateau revolver, pour le changement d'outil Download PDF

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Publication number
EP0143257B1
EP0143257B1 EP84111506A EP84111506A EP0143257B1 EP 0143257 B1 EP0143257 B1 EP 0143257B1 EP 84111506 A EP84111506 A EP 84111506A EP 84111506 A EP84111506 A EP 84111506A EP 0143257 B1 EP0143257 B1 EP 0143257B1
Authority
EP
European Patent Office
Prior art keywords
ram
tool
piercing press
holder
press according
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
Application number
EP84111506A
Other languages
German (de)
English (en)
Other versions
EP0143257A1 (fr
Inventor
Walter Bredow
Albert Schwarze
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.)
C Behrens AG
Original Assignee
C Behrens AG
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 C Behrens AG filed Critical C Behrens AG
Publication of EP0143257A1 publication Critical patent/EP0143257A1/fr
Application granted granted Critical
Publication of EP0143257B1 publication Critical patent/EP0143257B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B21D28/12—Punching using rotatable carriers
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/9425—Tool pair
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/9428—Shear-type male tool
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/9437—Shear-type female tool
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9473—For rectilinearly reciprocating tool
    • Y10T83/9476—Tool is single element with continuous cutting edge [e.g., punch, etc.]

Definitions

  • the invention relates to a tool holder according to the preamble of claim 1, starting from DE-A1-331 667.
  • the individual tool sets of a turret cutting press are inserted into bores distributed along the circumference of the turret plates arranged one above the other and each consist of at least one punch, one die and one stripper.
  • a manual conversion process i.e. the removal of complete tool sets and their replacement by others with numerous handicrafts and thus a great deal of work.
  • the die In the inserted state, the die is fixed in the U-shaped recess by means of two spring-loaded clamping levers which engage it laterally.
  • an interchangeable device which releases both the pawl and the clamping lever, both the stripper and the die can be removed from the turret adjusters.
  • the tool holder known from this publication is not suitable for the simultaneous replacement of the stamp.
  • all devices which serve to solve locking elements for fastening the tools are moved together with the changing device.
  • a hydraulic press for punching work is known from AT-B-37 00 16, the upper and lower tools of which can be inserted into special holding devices.
  • the upper tool consists of a punch insert, to which a sleeve, which cooperates with a stripper, is movably attached, while the lower tool consists of a die insert with inserted die.
  • the upper and lower tools are fixed in their working position by spring force and can be released hydraulically, the connection between the parts of the upper and lower tools and the above-mentioned inserts being releasable with the aid of hand tools. It is therefore not possible with this known press to directly remove or insert a complete tool set in a simple manner.
  • the object of the invention to design a tool holder of the type described in the introduction in such a way that a complete tool set, consisting at least of punch, stripper and die, can be exchanged in a simple manner.
  • This object is achieved by the features of the characterizing part of claim 1.
  • the stamp is also arranged in a receiving device which is open, for example, in the radial direction and which can be configured, for example, as a groove which carries the stamp in the vertical direction . In order to give the punch a defined end position during its insertion into this groove, it is expediently equipped with a stop.
  • All tools of a tool set are fixed in the receiving devices assigned to them by means of special locking elements, which, however, according to the invention can be released by actuating devices located on the machine frame of the turret cutting press. It is therefore advantageous that the functions of a tool changing device to be adapted to this turret cutting press can be limited to the gripping of the tools to be exchanged, since the functions of releasing the locking devices can be carried out by means of special devices already attached to the turret cutting press. A tool changing device can be made much simpler in this way, so that overall the integration of a turret cutting press equipped in this way is simplified in a computer-controlled production.
  • the features of claim 2 have the advantage that an existing functional element, namely the stamp holder is used as the receiving device for the stamp, which is thus equipped with a groove receiving the stamp. Numerous forms of the groove are available for the form-fitting securing of the stamp with respect to its working direction, which essentially means the vertical direction.
  • claims 3 and 4 represent a particularly easy to implement locking option of the stamp.
  • the essential functional elements of which consist of the retaining screw, the driving piece and the centering pin, the only requirement being that when screwing in Retaining screw of the centering pin is inserted into the associated bore of the stamp and is pulled out of this bore of the stamp while unscrewing the retaining screw.
  • claims 5 and 6 give a constructive embodiment again in which way the movements of the retaining screw and the centering pin over the driving piece with the assistance of springs, which here move the driving piece while unscrewing the holding screw from the threaded bore of the stamp influence each other, so that as a result, the blocking effect exerted by the carrier piece on the collar on the centering pin is canceled and the latter is also displaced under the action of the spring assigned to it.
  • the head of the retaining screw serves as a coupling element for an actuating device.
  • the actuating device has the purpose here of unscrewing the retaining screw from the associated threaded bore of the punch, so that the head can be equipped, for example, with an internal hexagon or an internal square, into which a correspondingly profiled counterpart of the actuating device can be inserted.
  • the die or the die shoe carrying the die is pushed, for example, radially onto the upper side of the lower turret plate, and abuts a securing bolt, through the position of which the die is also given a precisely defined radial position with respect to the turret plate.
  • the connection between the securing bolt and the die or the die shoe can be designed in such a way that the securing bolt in the end position of the die is in a semicircular recess of the die or the die shoe which is open towards the center of the turret plate, so that an exact fixation is possible.
  • a head of this securing bolt which projects slightly beyond the die or the die shoe, can at the same time provide vertical securing at this point.
  • the two clamping bolts arranged on the side of the die can in principle be of any design, the only thing that is important is that their form-fitting connection to the die or the die shoe can be released by as simple a movement as possible. In this way, the die is reliably locked at three points, with a corresponding design of the tensioning bolts, which should at the same time have a securing function in the vertical direction.
  • the component taking over a coupling function between the clamping bolts and an actuating device according to claim 10 can in principle be of any shape.
  • the arrangement of an internal hexagon or square is appropriate, which is brought into engagement with a corresponding counterpart of the actuating device.
  • the design effort in handling the individual tools of a tool set can be kept low.
  • the bores equipped without a pin only take on a vertical support function, while the bores equipped with a pin take on both such a support function and a securing function.
  • a tool changing device to be adapted to these tools could thus be characterized, for example, by a total of three pairs of bolts which can be individually displaced in the direction of the tools, the bolts which are inserted into the bores equipped with the pins having to have a corresponding profile so that a positive fit via the pins mentioned Fixation of the tools can take place.
  • FIG. 1 each designate the upper and lower turret plates of a turret cutting press, not shown, which are rotatably mounted about a vertical axis.
  • the revolver plates 1 and 2 each have locking bushes 3, 4 on the circumference, by means of which the revolver plates can be determined in certain rotational angle positions, for example the punching position. This locking is carried out by means of, for example, pneumatically operated locking bolts, not shown here, which are inserted into these locking bushes.
  • the upper turret plate 1 is provided with a series of holes 5 arranged on the circumference, in each of which a punch holder 6 is inserted in a sliding manner.
  • the stamp holder 6 ends in its upper region in a head plate 7, which is equipped with a central bore 14 extending in the longitudinal direction of the stamp holder.
  • a coupling pin 13 protrudes from the plane of the head plate 7, through which the bore 14 is passed.
  • the stamp holder 6 is secured vertically by a stamp holder plate 35 in the position shown in that the coupling pin rests on the edge of the stamp holder plate.
  • the coupling pin 13 is coupled with a machine tappet, not shown here, which moves the punch holder 6 in the vertical direction to carry out punching work.
  • the punch 22 is screwed essentially by a centrally arranged retaining screw 12.
  • the head 37 of the retaining screw 12, which is equipped with a hexagon socket, is supported via a driving piece 50 on an annular pressure surface 51, the retaining screw further extending in a bore 11 which merges at a point 52 into a bore 53 of smaller diameter, to which in turn a threaded bore 24 connects which runs in the punch 22.
  • a spring 15 is supported on the annular surface of the stamp holder 6 thus resulting at the point 52, the end of which, opposite the point 52, presses against the lower side of the driving piece 50.
  • the spring 15 is under tension in the installation position shown here.
  • a centering pin 16 which in the installed state extends through a hole 54 in the punch holder 6 into one
  • Bore 25 extends into it, which is located in the stamp 22.
  • the bore 54 merges into a bore 20 of larger diameter at the point 55.
  • the centering pin 16 has at its upper end two bundles arranged at a distance from one another, which are each arranged below and above the driving piece 50.
  • the lower collar 18 is pressed against a lower side of the driving piece 50 by a spring 17 which is supported on the one hand on an annular surface located at point 55 and on the other hand with respect to this collar 18.
  • the upper collar 19 is in this installed position at a distance above the associated upper side of the driving piece 50.
  • the head plate 7 is fastened to the stamp holder 6 by means of screws 56.
  • a scraper shoe 27 is held by scraper bolts 28, the scraper bolts being guided through holes 57 in the upper turret plate 1, which pass into holes 59 of larger diameter at point 58.
  • the upper end of the scraper bolt 28 is formed by a collar 30, the scraper bolt being held in the rest position shown by a spring element 60 which is supported on the one hand on the annular surface resulting at point 58 and on the other hand on the underside of the collar 30.
  • the scraper bolts 28 are slidably guided in the bores 57 and can be actuated by plungers (not shown in FIG. 1) in order to move the scraper shoe 27 to carry out punching work.
  • the scraper shoe 27 has a substantially U-shaped recess which is open in the direction of the arrow 61 and into which the scraper 31 is inserted and is here positively secured essentially by a circumferential groove 32 into which a flange 33 of the scraper projects. Further securing of the position of the scraper 31 will be discussed in the following. It is essential that both the punch 22 and the scraper 31 can be removed from the turret plate 1 in the direction of the arrow 61 or in the opposite direction, respectively, or can be inserted therein.
  • the lower turret plate 2 carries a mounting plate 38 which is fastened thereon by screws, not shown here, for example.
  • the mounting plate 38 is equipped with a central bore 62 serving for the stamping process, which is aligned with a bore 63 in the lower turret plate 2 and carries on its one the outer peripheral surface of the turret 2 opposite end a locking pin 64 which is screwed into the mounting plate 38.
  • the securing bolt 64 is used for radial support of a die shoe 39 with respect to the turret plate 2, which is provided at this point with a flattened portion 65, which is characterized by a U-shaped recess which is open in the direction of the arrow 66 and which engages under a collar of the securing bolt 64 . Further securing or fastening elements of the die shoe 39 will be discussed in the following.
  • the die shoe 39 carries a die 21.
  • FIG. 2 and the other graphical representations functional elements that correspond to those of FIG. 1 are designated with the same reference numerals, so that a repeated description is unnecessary.
  • FIG. 2 shows a view of the tool set of a turret cutting press from the direction in which this tool set, which consists of the punch 22, the stripper 31 and the die shoe 39 with the die 21 held therein, is replaced.
  • the stamp 22 is equipped on both sides in this viewing direction with a flange 23 which is held in a corresponding groove of the stamp holder 6 which runs perpendicular to the plane of the drawing in FIG. 2, so that the stamp 22 is positively locked in the vertical direction in this way is secured.
  • the stamp 22 finds a radial stop within the stamp holder 6 in a pin 34 (FIG. 1) which is inserted into a bore 92 extending parallel to the retaining screw 12.
  • the die shoe 39 is secured against unintentional removal perpendicular to the plane of the drawing in FIG. 2 by means of clamping bolts 26 which are arranged on both sides. The detailed design and operation of these clamping bolts 26 will be explained.
  • the punch 22, the stripper 31 and the die shoe 39 are each equipped with two bores 40, 41 arranged next to one another, which essentially extend horizontally.
  • the bores 40 which are essentially arranged one below the other, have in common that they are partially penetrated in their respective right-hand edge region by a further bore 36 of smaller diameter, in each case pins 94 being inserted into these bores 36, as shown in the projection in FIG. 2 thus partially protrude into the bores 40.
  • the meaning of these pins 94 in the context of the embodiment will also be explained in the following.
  • FIG. 3 shows different configurations of the lower region of the stamp holder 6, which serve to guide the stamp 22. While only a rectangular groove 47 is present in FIG. 3, which therefore does not permit vertical fixation of the stamp, FIG. 4 shows a dovetail-shaped groove 48 or a rectangular groove 49 provided with an underhand grip. The embodiments according to FIGS. 4 and 5 confer the stamp 22 thus a vertical fixation.
  • a rectangular groove with a grip is shown schematically at 49.
  • FIGS. 9 and 10 show the mechanism by means of which the attachment of the stamp 22 and the scraper 31 to the upper turret plate 1 can be released by machine.
  • the turret cutting press is on the machine frame 42 a vertically movable carriage 44 is attached, which can be moved by means of a piston-cylinder unit 45 which can be loaded on both sides.
  • the cylinder of the piston-cylinder unit 45 is fastened to the machine frame 42 via a mounting plate 71, while its piston rod 72 is connected to the slide 44.
  • a mechanical screwdriver 73 is fastened on the slide 44, and the screw spindle 74 provided with an external hexagon can be inserted through the bore 14 of the coupling pin and into the head 37 of the retaining screw 12.
  • the slide 44 is mounted on the machine frame 42 so as to be pivotable about a vertical axis 74 ', so that the complete punch holder 6 can occasionally be removed from the turret plate 1 for maintenance purposes.
  • the carriage 44 In the working position shown in the drawings, the carriage 44 is secured by a pawl 75, which is only indicated schematically.
  • the clamping bolt 26 is provided below its head with a recess 76 which is designed as a flattening of the shaft of the clamping bolt which is otherwise circular in cross section.
  • the die shoe 39 also has flattened areas 77, which are provided with semicircular recesses 78, the radius of these semicircular recesses 78 essentially corresponding to the radius of the shaft of the clamping bolts 26 in this area. If the clamping bolt 26 is thus in a rotational angle position with respect to its longitudinal axis, in which the round section of the cross section engages in the respective semicircular recess 78, the die shoe 39 is positively secured with respect to a movement perpendicular to the plane of the drawing in FIG. 11.
  • the depth of the recess 76 radially to the shaft of the clamping bolt 26 is such that after rotation of the clamping bolt 26 by 180 ° with respect to the position shown in FIG. 11, the recess 76 now faces the respective recess 78, in which position the die shoe 39 is no longer locked by the clamping bolt 26.
  • a boom 79 is attached to the machine frame 42 below the lower turret plate 2 and carries a piston-cylinder unit 81, which can preferably be acted upon on both sides, on an angle bracket 80.
  • a mounting plate 83 is fastened to the piston rod 82 of this piston-cylinder unit 81 and can be moved along two stationary, vertically arranged guide bolts 84.
  • the mounting plate 83 carries two rotary assemblies 85 at a distance from one another and in a position which enables the coupling pins 86 connected to the output shafts of these rotary assemblies 85 to be inserted into depressions 87 in a component 88 which is connected in a rotationally rigid manner to the clamping bolt 26.
  • the slide 44 is moved vertically in the direction of arrow 89 (FIG. 9) by acting on the piston-cylinder unit 45, so that the screw spindle 74 , in particular whose end region provided with an external hexagon is brought into engagement with the internal hexagon of the head 37 of the retaining screw 12 through the bore 14 of the coupling pin 13.
  • the mounting plate 83 is moved upward in the direction of arrow 90 (FIG. 12) by pressurizing the piston-cylinder unit 81, so that the coupling pins 86 are coupled to the recesses 87.
  • the screwdriver 73 By actuating the screwdriver 73, the retaining screw 12 is released, which, after it has been completely screwed out of the threaded bore 24, is raised by the relaxing spring 15, which presses on the underside of the driving piece 50. This lifting is achieved in that the driving piece 50 acts on the form-fitting head 37 held in this.
  • the lifting of the driving piece 50 has the result that the centering pin 16 can also be raised under the action of the relaxing spring 17 after the lower collar 18 no longer abuts the underside of the driving piece 50. In this way, the centering pin is completely pulled out of the bore 25 of the punch 22, so that the locking of the punch caused thereby is released.
  • the clamping bolts 26 are now rotated by 180 °, so that the recesses 76 of the clamping bolts 26 are now on the side facing the recesses 78 of the die shoe 39 and the locking achieved by the clamping bolts 26 is also released.
  • removal pins 43, 46 of a tool changing device are inserted into the holes 40, 41 assigned to them, the removal pins 43 being in such an insertion phase in such an angular position that their flats 69 are on the side facing the pins 94.
  • Subsequent rotation of the removal pins 43 through 180 ° achieves a fixation of the plunger 22, the stripper 31 and the die shoe 39 with respect to the tool changing device, which acts in the horizontal plane, so that a subsequent removal of this tool set from the turret plates 1, 2 is possible without that some manual intervention is required.
  • a tool set is inserted in the opposite way, i.e. by means of the removal pins 43, 46, on which the tool set is located, it is inserted into the corresponding receptacles of the turret plates 1, 2, namely the punch 22 into the rectangular groove 49, the stripper 31 into the groove 32, while the die shoe 39 is on the mounting plate 38 is shifted until its semicircular recess in the area of the flat 65 engages under the head of the securing bolt 64 and the wiper shoe is locked in this way in this way.
  • the pawl 93 must be released, which must also be carried out simultaneously with its insertion.
  • the retaining screw 12 of the punch holder 6 is in the unscrewed position during this insertion phase of the tool set, so that the centering pin 16 is also withdrawn, i.e. is located completely within the bore 54 of the punch holder 6. Subsequently, the holding screw 12 is screwed into the threaded bore 24 of the plunger 22 by actuating the screwdriver 73, as a result of which the driving piece 50 is pressed downward and the spring 15 is compressed. This displacement of the driving piece 50 also has a
  • the locking grooves 70 are then rotated out of the area of the pins 94 by rotating the removal pins 43 through 180 °, so that the removal pins 46, 43 can then be withdrawn.
  • the turret cutting press described is thus characterized by a tool holding system, which enables a complete removal of a complete tool set in the radial direction to the turret adjusters 1, 2, whereby the prerequisites for interaction with a computer-controlled tool changing device have been created.
  • a in FIGS. 6 to 8 denotes the identical distances between the bores 36 (FIG. 2) and the pins 94 from the outer boundary surfaces 95 of the stamp 22, the stripper 31 and the die shoe 39.

Claims (14)

1. Système porte-outils de presse à découper, en particulier de presse à découper revolver dont les plateaux revolvers (1, 2) sont agencés pour recevoir plusieurs jeux d'outils constitués chacun, au moins, d'un poinçon (22), d'un éjecteur (31) et d'une matrice (21), l'éjecteur (31) et la matrice (21) étant placés, avec le concours d'éléments de verrouillage, dans des dispositifs porte-outil ouverts horizontalement ou dans la direction radiale des plateaux revolvers (1, 2), caractérisé en ce que chaque outil d'un jeu est placé dans un dispositif porte-outil correspondant (1, 2) du plateau revolver, ouvert dans une direction horizontale, en particulier dans la direction radiale, de sorte que le montage et l'enlèvement de tous les outils d'un jeu sont possibles dans une direction horizontale, en particulier dans la direction radiale, au moyen d'un dispositif de changement d'outils, que le poinçon (22), l'éjecteur (31) et la matrice (21) sont immobilisés par conjugaison de formes dans leur dispositif porte-outil avec le concours d'éléments de verrouillage, et que, des dispositifis de manoeuvre individuels actionnables indépendamment du dispositif de changement d'outils sont placée, sur le bâti de la presse à découper pour le déblocage et l'arrêt des éléments de verrouillage.
2. Système porte-outils de presse à découper selon la revendication 1, caractérisé en ce que le dispositif porte-outil coopérant avec le poinçon (22) est un porte-poinçon (6) dont la partie inférieure, c'est-à-dire celle qui est dirigée vers le poinçon (22), présente une rainure (48,49) dont la forme de la section immobilise le poinçon (22) dans sa direction de travail par conjugaison de formes.
3. Système porte-outils de presse a découper selon l'une des revendicatione 1 et 2, caractérisé en ce que l'élément de verrouillage coopérant avec le poinçon (22) est constitué au moins d'une broche de centrage (16) qui peut être mise en prise avec un trou (25) du poinçon (22) et est par ailleurs guidée à l'intérieur du dispositif porte-outil portant le poinçon (22), par exemple dans un trou (54) du porte-poinçon (6).
4. Système porte-outils de presse à découper selon la revendication 3, caractérisé en ce que la broche de centrage (16) peut, pour le verrouillage du poinçon (22), être introduite dans le trou (25) à l'aide d'une vis de fixation (12) placée à une certaine distance de la broche de centrage et pouvant être vissée dans un trou taraudé (24) du poinçon (22) et grâce à une pièce d'entraînement (50) montée coulissante dans le porte-poinçon (6).
5. Système porte-outils de presse à découper selon la revendication 4, caractérisé en ce que, entre la pièce d'entraînement (50) et le porte-poinçon (6), est placé un ressort (15) qu'on comprime lorsqu'on visse la vis de fixation (1, 2) dans le trou taraudé (24) et qui déplace la pièce d'entraînement (50) relativement au porte-poinçon (6) lorsqu'on dévisse ladite vis (12).
6. Système porte-outils de presse à découper selon l'une des revendications 4 et 5 caractérisé en ce qu'entre le porte-poinçon (6) et un collet (18) fait sur la broche de centrage (1, 6) est placé un ressort (17), et que le collet (18) s'appuie contre une face de la pièce d'entraînement (50) de façon telle que par vissage de la vis de fixation (12), la broche de centrage (16) est introduite dans le trou (25) par l'intermédiaire de la pièce d'entraînement (50) et du collet (18) avec compression du ressort (17).
7. Système porte-outils de presse à découper selon l'une des revendications 4 à 6, caractérisé en ce que la vis de fixation (12) est pourvue d'une tête (37) qui forme un élément d'accouplement à un dispositif de manoeuvre.
8. Système porte-outils de presse à découper selon l'une des revendications précédentes, caractérisé en ce que les éléments de verrouillage coopérant avec la matrice (21) sont constitués d'une cheville d'arrêt (64) et de deux chevilles de serrage (26), les chevilles de serrage (26) étant placées des deux côtés relativement à la direction de montage et d'enlèvement de la matrice (21) et étant montées mobiles, de préférence tournantes autour de leur axe longitudinal, pour la réalisation d'une liaison par conjugaison de formes avec la matrice (21), cette liaison étant telle que la matrice (21) soit fixée aussi bien dans la direction d'enlèvement et de montage de celle-ci que dans une direction perpendiculaire à cette direction, et la cheville d'arrêt (64) formant un point de butée.
9. Système porte-outils de presse à découper selon la revendication 8, caractérisé en ce que les chevilles de serrage (26) présentent à leur partie extrême supérieure, c'est-à-dire dirigée vers la matrice (21), sous leur tête, un évidement (76), tel que la section des chevilles de serrage (26) a, dans la zone de cet évidement, la forme d'un segment de cercle, la partie ronde de ce dernier étant, quand les chevilles de serrage (26) sont en position d'arrêt, en prise avec des évidements (78) approximativement semi-circulaires et de même rayon de la matrice (21) ou d'un coussinet (39) portant celle-ci, et les parties rondes des chevilles de serrage (26) se trouvant, quand celles-ci sont en position d'ouverture, du côté opposé aux évidements (78), de sorte que les chevilles de serrage (26) ne sont pas en prise avec lesdits évidements (78).
10. Système porte-outils de presse à découper selon l'une des revendications 8 et 9, caractérisé en ce que les chevilles de serrage (26) sont, à leur extrémité opposée à la matrice (21), liées à un élément (88) qui forme un élément d'accouplement à un dispositif de manoeuvre.
11. Système porte-outils de presse à découper selon l'une des revendications précédentes, caractérisé en ce que l'élément de verrouillage coopérant avec l'éjecteur (31) est un cliquet (93) connu en soi, en particulier à ressort.
12. Système porte-outils de presse à découper selon l'une des revendications 7 à 11, caractérisé en ce que le dispositif de manoeuvre coopérant avec la tête (37), formant élément d'accouplement, de la vis de fixation (12) est un dispositif d'entraînement en rotation, en particulier une visseuse (73), pouvant être mû par moteur vers la tête (37) et être accouplé à celle-ci.
13. Système porte-outils de presse à découper selon l'une des revendications 10 et 11, caractérisé en ce que les éléments (88) des deux chevilles de serrage (26) affectées à une matrice (21) peuvent être accouplés à un dispositif d'entraînement en rotation qui peut être déplacé par un moteur vers ces éléments (88).
14. Système porte-outils de presse à découper selon l'une des revendications précédentes, caractérisé en ce que le poinçon (22), l'éjecteur (31), et la matrice (21) ou le coussinet de matrice (39) sont pourvus de deux trous espacés (40,41) s'étendant dans la direction d'enlèvement et de montage de ces outils, que chaque trou (40) est traversé dans la zone de son bord par un trou perpendiculaire (36) dans lequel est placée une goupille (94) qui ainsi entre en partie dans le trou (40), et que les trous (36) sont à une distance déterminée (A) de la surface limite extérieure (95) de l'outil correspondant.
EP84111506A 1983-09-29 1984-09-27 Raccordement d'outil d'une presse de découpage, notamment d'une presse de découpage à plateau revolver, pour le changement d'outil Expired EP0143257B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833335329 DE3335329A1 (de) 1983-09-29 1983-09-29 Werkzeugmaschine, insbesondere revolverschneidpresse mit fuer einen ferngesteuerten wechsel geeigneter werkzeugaufnahme
DE3335329 1983-09-29

Publications (2)

Publication Number Publication Date
EP0143257A1 EP0143257A1 (fr) 1985-06-05
EP0143257B1 true EP0143257B1 (fr) 1987-11-25

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EP84111506A Expired EP0143257B1 (fr) 1983-09-29 1984-09-27 Raccordement d'outil d'une presse de découpage, notamment d'une presse de découpage à plateau revolver, pour le changement d'outil

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US (1) US4624165A (fr)
EP (1) EP0143257B1 (fr)
DE (2) DE3335329A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1289814B1 (it) * 1996-12-27 1998-10-16 Rainer Srl Macchina per la punzonatura di lamiere.
FR2580988B1 (fr) * 1985-04-30 1988-11-18 Esswein Sa Outil de presse a parties travaillantes interchangeables
DE3720777C2 (de) * 1987-06-24 1993-10-07 Behrens Ag C Revolverschneidpresse
IT1233941B (it) * 1989-02-21 1992-04-22 Rainer Srl Impianto per la punzonatura di lamiere
JPH07108425B2 (ja) * 1990-03-23 1995-11-22 株式会社小松製作所 パンチプレス
DE69108282T2 (de) * 1990-05-01 1995-08-03 Amada Co Revolverstanze mit einer Matrizenwechseleinrichtung.
CN1281356C (zh) * 2000-11-06 2006-10-25 株式会社阿玛达 对冲孔机的冲头和／或模具的更换方法以及冲孔系统
DE102007011423A1 (de) * 2007-03-08 2008-09-11 Poly-Clip System Gmbh & Co Kg Schließwerkzeugbaugruppe
JP5635206B1 (ja) * 2014-03-12 2014-12-03 株式会社原田木型工業 シート部材加工装置の補助プレートおよびそれを使用するシート部材加工装置
CN111804794A (zh) * 2020-07-07 2020-10-23 芜湖常瑞汽车部件有限公司 一种具有自动定位功能的多工位冲压装置及其使用方法

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US3229791A (en) * 1962-07-11 1966-01-18 Federal Warco Division Apparatus for use with presses and the like
DE1232917B (de) * 1963-01-29 1967-01-26 Oscar W Stoeckli Stanzvorrichtung zum Fertigen von genauen Blechteilen durch repassierendes Nachschneiden
US3238832A (en) * 1963-07-11 1966-03-08 Dro Engineering Company Di Pierce unit and means for setting up the same
US3296905A (en) * 1965-01-08 1967-01-10 John S Killaly Compressive stripping unit and indexing type nibbling punch for turret punch presses and the like
US3610021A (en) * 1969-03-07 1971-10-05 Albert Trostel Packings Ltd Universal die set with quick change die plates
DE1938815A1 (de) * 1969-07-30 1971-02-11 Toledo Stamping & Mfg Company Stanzvorrichtung
US3638473A (en) * 1969-11-19 1972-02-01 Wyman Gordon Co Block and die shoe clamping assembly
US3719117A (en) * 1971-07-29 1973-03-06 W Scott Punch holder
GB1446708A (en) * 1972-06-21 1976-08-18 Cincinnati Milacron Inc Mounting of tools on presses
CH627965A5 (en) * 1978-05-03 1982-02-15 Standard Telephon & Radio Ag Punching machine

Also Published As

Publication number Publication date
DE3335329A1 (de) 1985-05-02
EP0143257A1 (fr) 1985-06-05
DE3467722D1 (en) 1988-01-07
US4624165A (en) 1986-11-25

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