EP3722019B1 - Tool insertion aid - Google Patents

Tool insertion aid Download PDF

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Publication number
EP3722019B1
EP3722019B1 EP19168429.9A EP19168429A EP3722019B1 EP 3722019 B1 EP3722019 B1 EP 3722019B1 EP 19168429 A EP19168429 A EP 19168429A EP 3722019 B1 EP3722019 B1 EP 3722019B1
Authority
EP
European Patent Office
Prior art keywords
drive element
drive
tool
changing plate
tool changing
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.)
Active
Application number
EP19168429.9A
Other languages
German (de)
French (fr)
Other versions
EP3722019C0 (en
EP3722019A1 (en
Inventor
Marc Stämpfli
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.)
Feintool International Holding AG
Original Assignee
Feintool International Holding 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 Feintool International Holding AG filed Critical Feintool International Holding AG
Priority to EP19168429.9A priority Critical patent/EP3722019B1/en
Priority to ES19168429T priority patent/ES2951563T3/en
Priority to CA3074486A priority patent/CA3074486A1/en
Priority to JP2020045944A priority patent/JP2020171963A/en
Priority to US16/843,875 priority patent/US11691372B2/en
Priority to CN202010277565.XA priority patent/CN111805961B/en
Publication of EP3722019A1 publication Critical patent/EP3722019A1/en
Application granted granted Critical
Publication of EP3722019C0 publication Critical patent/EP3722019C0/en
Publication of EP3722019B1 publication Critical patent/EP3722019B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/028—Loading or unloading of dies, 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
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/026—Mounting of dies, platens or press rams
    • 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
    • B21D37/14—Particular arrangements for handling and holding in place complete dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/085—Accessories for handling work or tools handling of 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
    • Y10T483/00—Tool changing
    • Y10T483/17—Tool changing including machine tool or component
    • Y10T483/1729—Reciprocating tool machine tool [e.g., broaching machine, shaping machine, etc.]

Definitions

  • the invention relates to a tool installation aid for installing a tool in a press, in particular a fineblanking press according to the preamble of claim 1.
  • Such tool installation aids are known in principle in the prior art, for example from the publications U.S.A. 4,395,944 and CN 101 722 674 A . They are used to transfer a tool from a press to a press by means of a tool changing plate in or on which the tool is attached, in particular to the press table or the clamping plate of the press, in order to put the tool in the press into operation. For example, this is provided when a previous tool is worn out and has to be replaced with a new tool.
  • a tool changing plate is transferred from an area in front of the press into the press by means of a drive device, in particular a motorized drive device, which moves the tool changing plate in a horizontal plane into the press.
  • drive devices for the transfer of the tool changing plate are separate units, which are expensive and take up a lot of space in front of the press.
  • drive devices can be designed as motor-driven push link chains that exert a push force on the tool changing plate in order to move it into the press, in particular onto its clamping plate.
  • a tool installation aid of the type mentioned at the outset which includes a holding bracket which can be attached to the stand/frame of a press and which also includes a tool changing plate in or on which a tool to be changed can be attached, in particular in its recess changing tool can be used, wherein the tool changing plate can be placed on a receiving element of the holding console and is further developed by the characterizing features of claim 1.
  • the receiving element can be arranged with an area carrying the tool changing plate in the same plane as the receiving plane of the clamping platen of the press onto which the tool with the tool changing plate is to be transferred.
  • the tool changing plate can be transferred from the receiving element in the direction and onto the clamping plate of the press.
  • a drive device in particular a motor-driven or manually drivable drive device, is arranged in the tool changing plate, with which the tool changing plate can be displaced on the receiving element, in particular in the direction of the stand/frame, preferably from the receiving element onto the clamping plate of the stand / frame can be transferred.
  • the drive device of the tool changing plate comprises at least one driven first drive element
  • the receiving element comprises at least one non-driven second drive element, which is used to move the tool changing plate are operatively connected.
  • the second drive element itself is not driven to move the tool change plate, it is referred to as a drive element because it forms part of the kinematic drive train that is used to move the tool change plate.
  • the at least one second drive element is thus a passive element which is itself at rest, ie stationary, during the movement of the tool changing plate.
  • the drive for moving the tool changing plate is not separate from the tool changing plate, but in the invention a drive device is integrated into the tool changing plate.
  • the at least one first drive element mentioned can be driven relative to the receiving element, in particular directly if, for example, the drive device of the tool changing plate already includes a motor, or at least indirectly if a motor is not integrated in the tool changing plate, for example, but is external to it.
  • an indirect drive can, for example, take place in such a way that an external motor or a manually operated element, e.g. via a coupling element on the tool changing plate, transmits a driving force or a driving torque to the tool changing plate, with the drive device of the tool changing plate being provided to transmit the force or torque to the at least one first driven drive member.
  • the drive device of the tool changing plate can thus be designed as a force or torque transmission system, e.g. as a gear, for force or torque transmission between the coupling element and the at least one first drive element.
  • the operative connection between the at least one driven first drive element and the non-driven at least one second drive element on the receiving element causes a force or torque transmission between the tool changing plate and the Recording element, so that the tool change plate can be moved relative to the stationary to the press recording element through this transmission.
  • the at least partial integration of the drive device, that is to say possibly down to the motor or a manual actuating element, in the tool change plate reduces the requirements for the installation space required for a drive device in front of the press.
  • a motor for driving the tool changing plate does not have to be arranged stationary to the press, since in the invention the force acting for the drive unfolds between the tool changing plate and the receiving element, which in turn is connected to the press. The driving forces therefore actually act directly between the die change plate and the press. This means that a motor can also be moved with the tool change plate.
  • the at least one non-driven second drive element can be brought from a rest position into a working position, the at least one second drive element being operatively connected to the at least one first drive element only in the working position.
  • Rest and working positions are positions that the at least one second drive element assumes on the receiving element.
  • the drive element can be transferred between the two positions by means of a rotational movement relative to the receiving element. Since there is no operative connection between the at least one first and second drive element in the rest position, this rest position can be provided, for example, for the tool changing plate to be placed on the receiving element hang up, after which it is initially freely displaceable on the receiving element, in particular in the horizontal direction.
  • the at least one second non-driven drive element is transferred from the rest position to the working position, this creates an operative connection between the at least one first and second drive element, in particular they engage with one another.
  • the tool changing plate is no longer freely displaceable, but now displaceable with its integrated drive device in the direction of the press and away from the press.
  • the invention can provide that at least one driven front first drive element and at least one driven rear first drive element are arranged on the tool changing plate with respect to the displacement direction, in particular the direction towards the press, with the front and rear first drive elements being driven synchronously. Front and rear first drive element are both part of the drive device of the tool changing plate.
  • the force or torque for moving the tool changing plate can be transmitted to at least two driven first drive elements spaced apart in the displacement direction to a non-driven second drive element, in particular what evenly distributes the force transmission to several points.
  • the at least one front and the at least one rear first drive element are operatively connected at the same time to the same second drive element and in a second to the first only the at least one rear first drive element is operatively connected to the second drive element.
  • the at least one front first drive element can thus disengage from the second drive element solve, the drive is still guaranteed via the at least one rear first drive element. There is thus no power interruption, although the tool change plate moves out of the receiving element.
  • the at least one front first drive element can be brought into operative connection with at least one third non-driven drive element on the press, in particular when the tool installation aid is fastened to a press with at least one third non-driven drive element of the press .
  • the front first drive element thus disengages from the second drive element during transfer to the press and comes into operative connection with a third undriven drive element of the press, in particular while the at least one rear first drive element is continuously operatively connected with the second drive element.
  • the at least one front and rear first drive element have no operative connection to the at least one second drive element, particularly in the third displacement area when the tool installation aid is attached to a press at least one front and one rear first drive element are simultaneously operatively connected to at least one third non-driven drive element on the press.
  • the tool changing plate thus moves from the receiving element into the press, with the driving force initially being supported only on the receiving element, then simultaneously on the receiving element and the press and ultimately only on the press.
  • the invention can preferably provide that at least one front and at least one rear first drive element is arranged on the tool changing plate on each of the two opposite side walls running parallel to the direction of displacement, in particular the respective second drive element arranged along the respective side wall on the receiving element Drive element are operatively connected to the shift.
  • the tool changing plate can be moved in the desired direction of displacement particularly well without tilting.
  • the invention provides that the at least one first drive element, in particular the at least one front and rear first drive element, is designed as a driven gear and the at least one second, in particular also the third drive element is designed as a toothed rack meshing with it.
  • the receiving element has two opposite toothed racks as second, non-driven drive elements, between which the tool changing plate is arranged, with front and rear teeth protruding towards the toothed rack and meshing with it in a respective side wall of the tool changing plate, which is opposite a toothed rack Gears are provided as the respective first driven drive element.
  • the driving forces are thus transmitted outwards from the tool changing plate at at least four points, initially only to the receiving element, then to the receiving element and the press and then only to the press.
  • toothed racks are arranged opposite one another as the respective third drive element in such a way that the toothed racks of the third and second drive elements are aligned with one another and are positioned tooth-synchronously.
  • the respective toothed rack of the second drive element is, according to the invention, parallel to the displacement direction and parallel to the Rack extension axis of rotation lying be pivoted from the rest position to the working position.
  • the driven front and rear gears of the first drive elements on the two side walls of the tool changing plate are more preferably each attached to a common first drive shaft, and each first drive shaft is coupled at its rear end in the direction of displacement to a respective second drive shaft lying perpendicular thereto, in particular via bevel gears .
  • a rotary motion generated manually or by a motor can be transmitted to the second drive shaft via a rotatable coupling element, which is arranged on an end wall of the tool changing plate perpendicular to the side walls, in particular via a gear, such as an angular gear or worm gear.
  • a motor attached to the coupling element or a hand crank all at least four gears can be rotated, which are arranged at the front and rear in the displacement direction on a respective side wall of the tool changing plate.
  • the receiving element can be attached in an articulated manner to support brackets of the holding bracket.
  • the receiving element can, for example, be swiveled through 90 degrees from an initially parallel position between two preferably vertical support supports and then be fixed, e.g. by means of fixing struts, which are located between the lower end of the support support and that of the Press opposite end of the receiving element extend.
  • this can have fastening elements, in particular which protrude in the direction of the press and which can engage in corresponding fastening elements of the press.
  • the tool installation aid 1 comprises two vertical supports 1b, at the upper end of which a receiving element 1a is articulated, so that the receiving element 1a can be folded out into the horizontal position shown here.
  • the horizontal alignment of the receiving element 1a is secured with the fixing struts 1c.
  • a holding bracket 1 is formed from the receiving element 1a, the support brackets 1b and the fixing struts 1c.
  • the two vertical supports 1b of the holding bracket 1 are firmly connected to the press stand 2.
  • the receiving plane 1e can be aligned with the two eccentric bolts 1g, via which the fixing struts 1c are connected at the lower end to the support brackets 1b. After this, the receiving plane 1e is aligned with the level of the press bed or the platen 2a.
  • the recording level 1e is the level that the rollers 1f of the Recording element 1a affected in the upper positions.
  • a tool changing plate 3 can be moved in the direction of the press 2 on these rollers 1f.
  • the tool changing plate 3 has in the embodiment shown Figures 1a to 3a a recess 3c on or above which a tool can be fastened, which is not shown in these figures.
  • Figure 3b shows an example of the design of a possible tool 3d, which is attached to the tool changing plate 3 and can be moved into and out of the press together with it.
  • Two gear wheels are arranged in each of the two side walls 3a of the tool changing plate 3, the gear wheel 6a being arranged at the front with respect to the displacement direction pointing towards the press, and the gear wheel 6b at the rear.
  • the gears 6a and 6b in each of the two side walls 3a thus form front and rear first driven driving elements. These are synchronously driven by the shafts 6c and 6d, which can be set in rotation by means of the coupling element 10 on the end face 3b facing away from the press 2.
  • a hand crank or a motor can be attached to the coupling element.
  • the coupling element 10 has a gear 6f, which rotates the two shafts 6d parallel to the end wall, which in turn drive the shafts 6c via bevel gears in the corners of the tool changing plate 3.
  • Corresponding toothed racks 7 run parallel to the side walls 3a, which are arranged on the receiving element 1a and can be pivoted there about the axes of rotation 9 between a rest position and a working position. In the working position, the gears 6 mesh in the racks 7.
  • the gears 6 can all be set in rotation synchronously, so that they can move forwards or backwards in the toothed racks 7 in the direction of the press and thereby move the tool changing plate 3 forwards or backwards.
  • the front gears 6a When moving in the direction of the press, the front gears 6a disengage from the respective racks 7 from a certain range of movement, but the rear gears 6b remain engaged and ensure the feed. Thereafter, the front gears 6a engage with the racks 8 on the press 2 above the platen 2a, so that the driving force or torque is directly transmitted to the press.
  • the associated position of the tool changing plate is in the Figure 1b shown.
  • a motor can, for example, be designed in a simple design as a cordless screwdriver or a compressed air motor with practically no space requirements.
  • a motor can also be designed as a 2-channel secured drive.
  • the invention can therefore be implemented very compactly and inexpensively compared to the prior art, since the essential components of the drive device are already integrated in the die changing plate and the driving forces/torques act directly between the die changing plate and the receiving element or the press and no external support require.
  • the receiving element 1a can be folded onto the press frame 2 to save space when it is not required.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Polarising Elements (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Description

Die Erfindung betrifft eine Werkzeugeinbauhilfe für den Einbau eines Werkzeuges in eine Presse, insbesondere eine Feinschneidpresse gemäß dem Oberbegriff von Anspruch 1.The invention relates to a tool installation aid for installing a tool in a press, in particular a fineblanking press according to the preamble of claim 1.

Solche Werkzeugeinbauhilfen sind im Stand der Technik grundsätzlich bekannt, z.B. aus den Publikationen US 4 395 944 A und CN 101 722 674 A . Sie dienen dazu, ein Werkzeug einer Presse mittels einer Werkzeugwechselplatte, in oder an der das Werkzeug befestigt ist, in eine Presse zu transferieren, insbesondere auf den Pressentisch bzw. die Aufspannplatte der Presse, um so das Werkzeug in der Presse in Betrieb zu nehmen. Z.B. ist dies vorgesehen, wenn ein bisheriges Werkzeug abgenutzt ist und gegen ein neues Werkzeug ersetzt werden muss.Such tool installation aids are known in principle in the prior art, for example from the publications U.S.A. 4,395,944 and CN 101 722 674 A . They are used to transfer a tool from a press to a press by means of a tool changing plate in or on which the tool is attached, in particular to the press table or the clamping plate of the press, in order to put the tool in the press into operation. For example, this is provided when a previous tool is worn out and has to be replaced with a new tool.

Aufgrund der erheblichen Gewichte der Werkzeuge und der Werkzeugwechselplatte kann ein solcher Wechsel nicht rein manuell vorgenommen werden. Vielmehr erfolgt ein Transfer einer Werkzeugwechselplatte aus einem Bereich vor der Presse in die Presse hinein mittels einer Antriebsvorrichtung, insbesondere einer motorischen Antriebvorrichtung, die das Verschieben der Werkzeugwechselplatte in einer horizontalen Ebene in die Presse hinein vornimmt.Due to the considerable weight of the tools and the tool changing plate, such a change cannot be carried out purely manually. Rather, a tool changing plate is transferred from an area in front of the press into the press by means of a drive device, in particular a motorized drive device, which moves the tool changing plate in a horizontal plane into the press.

Gemäß dem bisherigen Stand der Technik sind Antriebsvorrichtungen für den Transfer der Werkzeugwechselplatte separate Einheiten, die teuer sind und viel Platz im Bereich vor der Presse beanspruchen. Z.B. können solche Antriebsvorrichtungen als motorisch angetriebene Schubgliederketten ausgebildet sein, die eine Schubkraft auf die Werkzeugwechselplatte ausüben, um dieser in die Presse, insbesondere auf deren Aufspannplatte zu verschieben.According to the prior art, drive devices for the transfer of the tool changing plate are separate units, which are expensive and take up a lot of space in front of the press. For example, such drive devices can be designed as motor-driven push link chains that exert a push force on the tool changing plate in order to move it into the press, in particular onto its clamping plate.

Es ist vor diesem geschilderten Hintergrund eine Aufgabe der Erfindung, eine Werkzeugeinbauhilfe bereitzustellen, die günstiger konstruiert sein kann und weniger Raum, bevorzugt gar keinen Extraraum in einem Bereich vor der Presse beansprucht und deren Werkzeugwechselplatte zunächst frei beweglich ist.Against this background, it is an object of the invention to provide a tool installation aid that can be constructed more cheaply and takes up less space, preferably no extra space at all, in an area in front of the press and whose tool changing plate is initially freely movable.

Diese Aufgabe wird mit einer Werkzeugeinbauhilfe der eingangs genannten Art gelöst, die eine Haltekonsole umfasst, die am Ständer / Gestell einer Presse befestigbar ist und die weiterhin eine Werkzeugwechselplatte umfasst, in oder an der ein zu wechselndes Werkzeug befestigbar ist, insbesondere in deren Ausnehmung ein zu wechselndes Werkzeug einsetzbar ist, wobei die Werkzeugwechselplatte auf ein Aufnahmeelement der Haltekonsole auflegbar ist und die durch die kennzeichnenden Merkmale des Anspruches 1 weitergebildet ist.This object is achieved with a tool installation aid of the type mentioned at the outset, which includes a holding bracket which can be attached to the stand/frame of a press and which also includes a tool changing plate in or on which a tool to be changed can be attached, in particular in its recess changing tool can be used, wherein the tool changing plate can be placed on a receiving element of the holding console and is further developed by the characterizing features of claim 1.

Hier kann es vorgesehen sein, dass das Aufnahmeelement mit einem die Werkzeugwechselplatte tragenden Bereich in derselben Ebene angeordnet ist, wie die Aufnahmeebene der Aufspannplatte der Presse, auf die das Werkzeug mit der Werkzeugwechselplatte transferiert werden soll. So kann erfindungsgemäß nach der Befestigung der Haltekonsole an der Presse die Werkzeugwechselplatte von dem Aufnahmeelement in die Richtung und auf die Aufspannplatte der Presse überführt werden.Provision can be made here for the receiving element to be arranged with an area carrying the tool changing plate in the same plane as the receiving plane of the clamping platen of the press onto which the tool with the tool changing plate is to be transferred. According to the invention, after the mounting bracket has been attached to the press, the tool changing plate can be transferred from the receiving element in the direction and onto the clamping plate of the press.

Erfindungsgemäß ist es weiterhin vorgesehen, dass in der Werkzeugwechselplatte eine Antriebsvorrichtung, insbesondere eine motorisch oder manuell antreibbare Antriebsvorrichtung angeordnet ist, mit der die Werkzeugwechselplatte auf dem Aufnahmeelement verschiebbar ist, insbesondere in Richtung zum Ständer / Gestell transportierbar ist, bevorzugt von dem Aufnahmeelement auf die Aufspannplatte des Ständers / Gestell überführbar ist.According to the invention, it is also provided that a drive device, in particular a motor-driven or manually drivable drive device, is arranged in the tool changing plate, with which the tool changing plate can be displaced on the receiving element, in particular in the direction of the stand/frame, preferably from the receiving element onto the clamping plate of the stand / frame can be transferred.

Weiterhin ist es gemäß der Erfindung vorgesehen, dass die Antriebsvorrichtung der Werkzeugwechselplatte wenigstens ein angetriebenes erstes Antriebselement umfasst, und das Aufnahmeelement wenigstens ein nicht angetriebenes zweites Antriebselement umfasst, die zur Verschiebung der Werkzeugwechselplatte wirkverbunden sind. Obwohl das zweite Antriebselement selbst nicht angetrieben ist, um die Werkzeugwechselplatte zu bewegen wird es als Antriebselement bezeichnet, weil es einen Teil des kinematischen Antriebsstrangs darstellt, der zur Bewegung der Werkzeugwechselplatte zum Einsatz kommt. Das wenigstens eine zweite Antriebselement ist somit ein passives Element, das während der Bewegung der Werkzeugwechselplatte selbst in Ruhe, also ortsfest ist.Furthermore, it is provided according to the invention that the drive device of the tool changing plate comprises at least one driven first drive element, and the receiving element comprises at least one non-driven second drive element, which is used to move the tool changing plate are operatively connected. Although the second drive element itself is not driven to move the tool change plate, it is referred to as a drive element because it forms part of the kinematic drive train that is used to move the tool change plate. The at least one second drive element is thus a passive element which is itself at rest, ie stationary, during the movement of the tool changing plate.

Es ist ein wesentlicher Unterschied der Erfindung gegenüber dem Stand der Technik, dass der Antrieb für die Bewegung der Werkzeugwechselplatte nicht separat von der Werkzeugwechselplatte ist, sondern bei der Erfindung eine Antriebsvorrichtung in die Werkzeugwechselplatte integriert ist. Mittels dieser Antriebsvorrichtung kann das genannte wenigstens eine erste Antriebselement gegenüber dem Aufnahmeelement angetrieben werden, insbesondere direkt, wenn z.B. die Antriebsvorrichtung der Werkzeugwechselplatte einen Motor bereits umfasst oder zumindest indirekt, wenn ein Motor z.B. nicht in der Werkzeugwechselplatte integriert, sondern extern zu dieser ist.It is an essential difference between the invention and the prior art that the drive for moving the tool changing plate is not separate from the tool changing plate, but in the invention a drive device is integrated into the tool changing plate. By means of this drive device, the at least one first drive element mentioned can be driven relative to the receiving element, in particular directly if, for example, the drive device of the tool changing plate already includes a motor, or at least indirectly if a motor is not integrated in the tool changing plate, for example, but is external to it.

In letzterem Fall kann ein indirekter Antrieb z.B. so erfolgen, dass von einem externen Motor oder auch einem manuell betätigten Element, z.B. über ein Kupplungselement an der Werkzeugwechselplatte eine antreibende Kraft oder ein antreibendes Drehmoment in die Werkzeugwechselplatte übertragen wird, wobei die Antriebsvorrichtung der Werkzeugwechselplatte vorgesehen ist, die Kraft oder das Drehmoment auf das wenigstens eine erste angetriebene Antriebselement zu übertragen. Die Antriebsvorrichtung der Werkzeugwechselplatte kann somit als ein Kraft- oder Drehmomentübertragungssystem, z.B. als ein Getriebe ausgebildet sein zur Kraft- oder Drehmomentübertragung zwischen dem Kupplungselement und dem wenigstens einen ersten Antriebselement.In the latter case, an indirect drive can, for example, take place in such a way that an external motor or a manually operated element, e.g. via a coupling element on the tool changing plate, transmits a driving force or a driving torque to the tool changing plate, with the drive device of the tool changing plate being provided to transmit the force or torque to the at least one first driven drive member. The drive device of the tool changing plate can thus be designed as a force or torque transmission system, e.g. as a gear, for force or torque transmission between the coupling element and the at least one first drive element.

Die Wirkverbindung zwischen dem wenigstens einen angetriebenen ersten Antriebselement und dem nicht angetriebenen wenigstens einen zweiten Antriebselement an dem Aufnahmeelement bewirkt eine Kraft- oder Drehmomentübertragung zwischen der Werkzeugwechselplatte und dem Aufnahmeelement, so dass durch diese Übertragung die Werkzeugwechselplatte relativ zu dem zur Presse ruhenden Aufnahmeelement bewegt werden kann. Durch die zumindest teilweise Integration der Antriebsvorrichtung, also ggfs. bis auf den Motor oder ein manuelles Betätigungselement, in die Werkzeugwechselplatte reduzieren sich die Anforderungen für den benötigten Bauraum für eine Antriebsvorrichtung vor der Presse.The operative connection between the at least one driven first drive element and the non-driven at least one second drive element on the receiving element causes a force or torque transmission between the tool changing plate and the Recording element, so that the tool change plate can be moved relative to the stationary to the press recording element through this transmission. The at least partial integration of the drive device, that is to say possibly down to the motor or a manual actuating element, in the tool change plate reduces the requirements for the installation space required for a drive device in front of the press.

Darüber hinaus reduziert sich der Aufwand für die Kraftübertragung zwischen der Antriebsvorrichtung und der Werkzeugwechselplatte, da die dafür nötigen Komponenten, insbesondere Getriebekomponenten in der Werkzeugwechselplatte enthalten sind. Insbesondere muss ein Motor zum Antrieb der Werkzeugwechselplatte nicht ortsfest zur Presse angeordnet werden, da sich bei der Erfindung die für den Antrieb wirkende Kraft zwischen der Werkzeugwechselplatte und dem Aufnahmeelement entfaltet, welches seinerseits mit der Presse verbunden ist. Die antreibenden Kräfte wirken somit faktisch direkt zwischen der Werkzeugwechselplatte und der Presse. Somit kann ein Motor auch mit der Werkzeugwechselplatte mitbewegt werden.In addition, the cost of the power transmission between the drive device and the tool changing plate is reduced, since the components required for this, in particular gear components, are contained in the tool changing plate. In particular, a motor for driving the tool changing plate does not have to be arranged stationary to the press, since in the invention the force acting for the drive unfolds between the tool changing plate and the receiving element, which in turn is connected to the press. The driving forces therefore actually act directly between the die change plate and the press. This means that a motor can also be moved with the tool change plate.

Gemäß der Erfindung ist es vorgesehen, dass das wenigstens eine nicht angetriebene zweite Antriebselement aus einer Ruheposition in eine Arbeitsposition bringbar ist, wobei das wenigstens eine zweite Antriebselement nur in der Arbeitsposition mit dem wenigstens einen ersten Antriebselement wirkverbunden ist.According to the invention, it is provided that the at least one non-driven second drive element can be brought from a rest position into a working position, the at least one second drive element being operatively connected to the at least one first drive element only in the working position.

Ruhe- und Arbeitsposition sind Positionen, die das wenigstens eine zweite Antriebselement am Aufnahmeelement einnimmt. Zwischen den beiden Positionen kann das Antriebselementmittels einer rotatorischen Bewegung relativ zum Aufnahmeelement überführt werden. Da in der Ruheposition keine Wirkverbindung zwischen dem wenigstens einen ersten und zweiten Antriebselement vorliegt, kann diese Ruheposition z.B. dafür vorgesehen sein, die Werkzeugwechselplatte auf das Aufnahmeelement aufzulegen, wobei es hiernach zunächst frei auf dem Aufnahmeelement verschieblich ist, insbesondere in horizontaler Richtung.Rest and working positions are positions that the at least one second drive element assumes on the receiving element. The drive element can be transferred between the two positions by means of a rotational movement relative to the receiving element. Since there is no operative connection between the at least one first and second drive element in the rest position, this rest position can be provided, for example, for the tool changing plate to be placed on the receiving element hang up, after which it is initially freely displaceable on the receiving element, in particular in the horizontal direction.

Wird das wenigstens eine zweite nicht angetriebene Antriebselement aus der Ruheposition in die Arbeitsposition überführt, so entsteht hierbei die Wirkverbindung zwischen dem wenigstens einen ersten und zweiten Antriebselement, insbesondere gelangen diese hierbei miteinander in Eingriff. Die Werkzeugwechselplatte ist hiernach nicht mehr frei verschieblich, jedoch nun mit seiner integrierten Antriebsvorrichtung verschiebbar in Richtung zur Presse und weg von der Presse.If the at least one second non-driven drive element is transferred from the rest position to the working position, this creates an operative connection between the at least one first and second drive element, in particular they engage with one another. After this, the tool changing plate is no longer freely displaceable, but now displaceable with its integrated drive device in the direction of the press and away from the press.

Die Erfindung kann in einer bevorzugten Weiterbildung vorsehen, dass an der Werkzeugwechselplatte bezüglich der Verschieberichtung, insbesondere der Richtung zur Presse wenigstens ein angetriebenes vorderes erstes Antriebselement und wenigstens ein angetriebenes hinteres erstes Antriebselement angeordnet ist, wobei vorderes und hinteres erstes Antriebselement synchron angetrieben sind. Vorderes und hinteres erstes Antriebselement sind beide Teil der Antriebvorrichtung der Werkzeugwechselplatte. Hierdurch kann die Kraft oder ein Drehmoment zur Bewegung der Werkzeugwechselplatte an wenigstens zwei in der Verschieberichtung beabstandete angetriebene erste Antriebelemente auf ein nicht angetriebenes zweites Antriebelement übertragen werden, insbesondere, was die Kraftübertragung auf mehrere Stellen gleichmäßig verteilt.In a preferred development, the invention can provide that at least one driven front first drive element and at least one driven rear first drive element are arranged on the tool changing plate with respect to the displacement direction, in particular the direction towards the press, with the front and rear first drive elements being driven synchronously. Front and rear first drive element are both part of the drive device of the tool changing plate. As a result, the force or torque for moving the tool changing plate can be transmitted to at least two driven first drive elements spaced apart in the displacement direction to a non-driven second drive element, in particular what evenly distributes the force transmission to several points.

Dies bietet den Vorteil, dass in einer Weiterbildung es vorgesehen sein kann, dass in einem ersten Verschiebebereich, insbesondere anfänglichen Verschiebebereich, das wenigstens eine vordere und das wenigstens eine hintere erste Antriebelement gleichzeitig mit demselben zweiten Antriebselement wirkverbunden sind und in einem zweiten, auf den ersten in Verschieberichtung nachfolgenden Verschiebebereich nur das wenigstens eine hintere erste Antriebselement mit dem zweiten Antriebselement wirkverbunden ist. Während des Transfers der Werkzeugwechselplatte, kann sich somit das wenigstens eine vordere erste Antriebselement aus dem Eingriff mit dem zweiten Antriebselement lösen, wobei der Antrieb weiterhin über das wenigstens eine hintere erste Antriebselement gewährleistet wird. Es kommt somit nicht zu einer Kraftunterbrechung, obwohl sich die Werkzeugwechselplatte aus dem Aufnahmeelement herausbewegt.This offers the advantage that in a further development it can be provided that in a first displacement range, in particular the initial displacement range, the at least one front and the at least one rear first drive element are operatively connected at the same time to the same second drive element and in a second to the first only the at least one rear first drive element is operatively connected to the second drive element. During the transfer of the tool changing plate, the at least one front first drive element can thus disengage from the second drive element solve, the drive is still guaranteed via the at least one rear first drive element. There is thus no power interruption, although the tool change plate moves out of the receiving element.

Besonders vorteilhaft ist es, wenn im zweiten Verschiebebereich das wenigstens eine vordere erste Antriebselement mit wenigstens einem dritten nicht angetriebenen Antriebselement an der Presse in Wirkverbindung bringbar ist, insbesondere bei Befestigung der Werkzeugeinbauhilfe an einer Presse mit wenigstens einem dritten nicht angetriebenen Antriebselement der Presse in Wirkverbindung steht.It is particularly advantageous if, in the second displacement region, the at least one front first drive element can be brought into operative connection with at least one third non-driven drive element on the press, in particular when the tool installation aid is fastened to a press with at least one third non-driven drive element of the press .

Das vordere erste Antriebselement löst sich somit während des Transfers zur Presse aus dem Eingriff mit dem zweiten Antriebselement und gelangt mit einem dritten nicht angetriebenen Antriebselement der Presse in Wirkverbindung, insbesondere während das wenigstens eine hintere erste Antriebelement kontinuierlich mit dem zweiten Antriebelement wirkverbunden ist.The front first drive element thus disengages from the second drive element during transfer to the press and comes into operative connection with a third undriven drive element of the press, in particular while the at least one rear first drive element is continuously operatively connected with the second drive element.

Weiter bevorzugt ist es, wenn in einem dritten Verschiebebereich, der in Verschieberichtung auf den zweiten Verschiebereich folgt das wenigstens eine vordere und hintere erste Antriebselement keine Wirkverbindung zu dem wenigstens einen zweiten Antriebselement aufweisen, insbesondere in dem dritten Verschiebebereich bei Befestigung der Werkzeugeinbauhilfe an einer Presse das wenigstens eine vordere und hintere erste Antriebselement gleichzeitig mit wenigstens einem dritten nicht angetriebenen Antriebselement an der Presse in Wirkverbindung stehen.It is also preferred if in a third displacement area, which follows the second displacement area in the direction of displacement, the at least one front and rear first drive element have no operative connection to the at least one second drive element, particularly in the third displacement area when the tool installation aid is attached to a press at least one front and one rear first drive element are simultaneously operatively connected to at least one third non-driven drive element on the press.

Die Werkzeugwechselplatte fährt somit vom Aufnahmeelement in die Presse hinein, wobei die antreibende Kraft sich zunächst nur am Aufnahmeelement abstützt, dann gleichzeitig am Aufnahmeelement und der Presse und sich letztendlich nur an der Presse abstützt.The tool changing plate thus moves from the receiving element into the press, with the driving force initially being supported only on the receiving element, then simultaneously on the receiving element and the press and ultimately only on the press.

Bevorzugt kann es die Erfindung vorsehen, dass an der Werkzeugwechselplatte an jeder der beiden sich gegenüberliegenden, parallel zur Verschieberichtung verlaufenden Seitenwänden jeweils wenigstens ein vorderes und wenigstens ein hinteres erstes Antriebselement angeordnet ist, insbesondere die mit wenigstens einem entlang der jeweiligen Seitenwand am Aufnahmeelement angeordneten jeweiligen zweiten Antriebelement zur Verschiebung wirkverbunden sind.The invention can preferably provide that at least one front and at least one rear first drive element is arranged on the tool changing plate on each of the two opposite side walls running parallel to the direction of displacement, in particular the respective second drive element arranged along the respective side wall on the receiving element Drive element are operatively connected to the shift.

So kann die Werkzeugwechselplatte besonders gut verkippungsfrei in der gewünschten Verschieberichtung bewegt werden.In this way, the tool changing plate can be moved in the desired direction of displacement particularly well without tilting.

Die Erfindung sieht vor, dass das wenigstens eine erste Antriebselement, insbesondere das wenigstens eine vordere und hintere erste Antriebselement als angetriebenes Zahnrad ausgebildet ist und das wenigstens eine zweite, insbesondere auch das dritte Antriebselement als damit kämmend in Eingriff stehende Zahnstange ausgebildet ist.The invention provides that the at least one first drive element, in particular the at least one front and rear first drive element, is designed as a driven gear and the at least one second, in particular also the third drive element is designed as a toothed rack meshing with it.

In einer möglichen Konstruktion weist somit das Aufnahmeelement zwei sich gegenüberliegende Zahnstangen als zweite nicht angetriebene Antriebselemente auf, zwischen denen die Werkzeugwechselplatte angeordnet ist, wobei in einer jeweiligen Seitenwand der Werkzeugwechselplatte, die jeweils einer Zahnstange gegenüberliegt, zur Zahnstange vorspringende und mit dieser kämmende vordere und hintere Zahnräder als jeweiliges erstes angeriebenes Antriebselement vorgesehen sind. Die antreibenden Kräfte werden somit an wenigstens vier Punkten von der Werkzeugwechselplatte nach außen übertragen, zunächst nur auf das Aufnahmeelement, dann auf Aufnahmeelement und die Presse und hiernach nur auf die Presse. In der Presse sind sich gegenüberliegend Zahnstangen als jeweiliges drittes Antriebselement so angeordnet, dass die Zahnstangen von dritten und zweiten Antriebselement miteinander fluchtend ausgerichtet sind und zahnsynchron positioniert sind.In one possible construction, the receiving element has two opposite toothed racks as second, non-driven drive elements, between which the tool changing plate is arranged, with front and rear teeth protruding towards the toothed rack and meshing with it in a respective side wall of the tool changing plate, which is opposite a toothed rack Gears are provided as the respective first driven drive element. The driving forces are thus transmitted outwards from the tool changing plate at at least four points, initially only to the receiving element, then to the receiving element and the press and then only to the press. In the press, toothed racks are arranged opposite one another as the respective third drive element in such a way that the toothed racks of the third and second drive elements are aligned with one another and are positioned tooth-synchronously.

Die jeweilige Zahnstange des zweiten Antriebselementes ist dabei erfindungsgemäß um eine parallel zur Verschieberichtung und parallel zur Zahnstangenerstreckung liegende Drehachse aus der Ruheposition in die Arbeitsposition verschwenkbar sein.The respective toothed rack of the second drive element is, according to the invention, parallel to the displacement direction and parallel to the Rack extension axis of rotation lying be pivoted from the rest position to the working position.

Die angetriebenen vorderen und hinteren Zahnräder der ersten Antriebselemente an den beiden Seitenwänden der Werkzeugwechselplatte sind weiter bevorzugt jeweils auf einer gemeinsamen ersten Antriebswelle befestigt, und jede erste Antriebswelle ist an deren in Verschieberichtung hinteren Ende mit einer jeweiligen dazu senkrecht liegenden zweiten Antriebswelle gekoppelt, insbesondere über Kegelzahnräder. Über ein drehbares Kupplungselement, das an einer senkrecht zu den Seitenwänden liegenden Stirnwand der Werkzeugwechselplatte angeordnet ist, kann eine manuell oder motorisch erzeugte Drehbewegung auf die zweiten Antriebswellen übertragen werden, insbesondere über ein Getriebe, wie z.B. ein Winkelgetriebe oder Schneckengetriebe. Mit einem an dem Kupplungselement befestigten Motor oder auch einer Handkurbel kann eine Drehung aller wenigstens vier Zahnräder bewirkt werden, die in Verschieberichtung vorne und hinten jeweils an einer jeweiligen Seitenwand der Werkzeugwechselplatte angeordnet sind.The driven front and rear gears of the first drive elements on the two side walls of the tool changing plate are more preferably each attached to a common first drive shaft, and each first drive shaft is coupled at its rear end in the direction of displacement to a respective second drive shaft lying perpendicular thereto, in particular via bevel gears . A rotary motion generated manually or by a motor can be transmitted to the second drive shaft via a rotatable coupling element, which is arranged on an end wall of the tool changing plate perpendicular to the side walls, in particular via a gear, such as an angular gear or worm gear. With a motor attached to the coupling element or a hand crank, all at least four gears can be rotated, which are arranged at the front and rear in the displacement direction on a respective side wall of the tool changing plate.

Das Aufnahmeelement kann an Tragstützen der Haltekonsole gelenkig befestigt sein. Um die Haltekonsole an einer Presse zu befestigen, kann das Aufnahmeelement z.B. aus einer zunächst parallelen Lage zwischen zwei bevorzugt vertikalen Tragstützen um 90 Grad verschwenkt werden und hiernach fixiert werden, z.B. durch Fixierstreben, die sich jeweils zwischen dem unteren Ende der Tragstütze und dem von der Presse abgewandten Ende des Aufnahmeelementes erstrecken.The receiving element can be attached in an articulated manner to support brackets of the holding bracket. In order to fasten the holding console to a press, the receiving element can, for example, be swiveled through 90 degrees from an initially parallel position between two preferably vertical support supports and then be fixed, e.g. by means of fixing struts, which are located between the lower end of the support support and that of the Press opposite end of the receiving element extend.

An dem zur Presse weisenden Ende des Aufnahmeelements kann dieses Befestigungselemente aufweisen, insbesondere die in Richtung zur Presse vorspringen und die in korrespondierenden Befestigungselemente der Presse eingreifen können.At the end of the receiving element pointing towards the press, this can have fastening elements, in particular which protrude in the direction of the press and which can engage in corresponding fastening elements of the press.

Eine bevorzugte Ausführung wird anhand der Figuren näher erläutert. Alle Figuren zeigen dieselbe Ausführung der Erfindung in verschiedenen Ansichten, so dass die Figuren nachfolgend insgesamt gemeinschaftlich beschrieben werden. Hierbei zeigen:

Figur 1a:
in perspektivischer Ansicht die Werkzeugeinbauhilfe an einer Presse mit der Werkzeugwechselplatte in einer Anfangsposition
Figur 1b:
in perspektivischer Ansicht die Werkzeugeinbauhilfe an einer Presse mit der Werkzeugwechselplatte in einer Übergangsposition
Figur 1c:
in perspektivischer Ansicht die Werkzeugeinbauhilfe an einer Presse mit der Werkzeugwechselplatte in der Endposition
Figur 2:
Seitenansichten der Werkzeugeinbauhilfe an einer Presse mit der Werkzeugwechselplatte in einer Anfangsposition
Figur 3a:
die Werkzeugwechselplatte ohne Werkzeug
Figur 3b:
die Werkzeugwechselplatte mit Werkzeug.
A preferred embodiment is explained in more detail with reference to the figures. All figures show the same embodiment of the invention in different views, so that the figures are collectively described below. Here show:
Figure 1a:
a perspective view of the tool installation aid on a press with the tool changing plate in an initial position
Figure 1b:
a perspective view of the tool installation aid on a press with the tool changing plate in a transitional position
Figure 1c:
perspective view of the tool installation aid on a press with the tool changing plate in the end position
Figure 2:
Side views of the tool mounting aid on a press with the tool changing plate in an initial position
Figure 3a:
the tool change plate without tools
Figure 3b:
the tool change plate with tool.

Gezeigt ist eine Werkzeugeinbauhilfe 1 für eine Presse 2, die hier zusammen mit einem Teil der Presse 2 gezeigt ist.Shown is a tool installation aid 1 for a press 2, which is shown here together with a part of the press 2.

Die Werkzeugeinbauhilfe 1 umfasst zwei vertikale Tragstützen 1b, an deren oberen Ende ein Aufnahmeelement 1a gelenkig befestigt ist, so dass das Aufnahmeelement 1a in die hier gezeigte horizontale Position aufgeklappt werden kann. Mit den Fixierstreben 1c wird die horizontale Ausrichtung des Aufnahmeelementes 1a gesichert. Aus dem Aufnahmeelement 1a, den Tragstützen 1b und den Fixierstreben 1c wird eine Haltekonsole 1 gebildet.The tool installation aid 1 comprises two vertical supports 1b, at the upper end of which a receiving element 1a is articulated, so that the receiving element 1a can be folded out into the horizontal position shown here. The horizontal alignment of the receiving element 1a is secured with the fixing struts 1c. A holding bracket 1 is formed from the receiving element 1a, the support brackets 1b and the fixing struts 1c.

Die beiden vertikalen Tragstützen 1b der Haltekonsole 1 sind fest mit dem Pressenständer 2 verbunden. Mit den beiden Exzenterbolzen 1g, über welche die Fixierstreben 1c an deren unteren Ende mit den Tragstützen 1b verbunden sind, kann die Aufnahmeebene 1e ausgerichtet werden. Hiernach ist die Aufnahmeebene 1e zur Ebene des Pressentisches bzw. der Aufspannplatte 2a fluchtend. Die Aufnahmeebene 1e ist hierbei die Ebene, welche die Rollen 1f des Aufnahmeelementes 1a in den oberen Positionen tangiert. Auf diesen Rollen 1f kann eine Werkzeugwechselplatte 3 in Richtung zur Presse 2 bewegt werden.The two vertical supports 1b of the holding bracket 1 are firmly connected to the press stand 2. The receiving plane 1e can be aligned with the two eccentric bolts 1g, via which the fixing struts 1c are connected at the lower end to the support brackets 1b. After this, the receiving plane 1e is aligned with the level of the press bed or the platen 2a. The recording level 1e is the level that the rollers 1f of the Recording element 1a affected in the upper positions. A tool changing plate 3 can be moved in the direction of the press 2 on these rollers 1f.

Die Werkzeugwechselplatte 3 hat in der gezeigten Ausführung der Figuren 1a bis 3a eine Ausnehmung 3c an oder über der ein Werkzeug befestigbar ist, welches in diesen Figuren nicht dargestellt ist. Figur 3b zeigt beispielhaft die Ausführung eines möglichen Werkzeuges 3d, welches an der Werkzeugwechselplatte 3 befestigt ist und zusammen mit dieser in die Presse hineinbewegt und aus dieser herausbewegt werden kann.The tool changing plate 3 has in the embodiment shown Figures 1a to 3a a recess 3c on or above which a tool can be fastened, which is not shown in these figures. Figure 3b shows an example of the design of a possible tool 3d, which is attached to the tool changing plate 3 and can be moved into and out of the press together with it.

In den beiden Seitenwänden 3a der Werkzeugwechselplatte 3 sind jeweils zwei Zahnräder angeordnet, wobei das Zahnrad 6a mit Bezug auf die zur Presse weisende Verschieberichtung vorne angeordnet ist und das Zahnrad 6b hinten. Die Zahnräder 6a und 6b in jeder der beiden Seitenwände 3a bilden somit vordere und hintere erste angetriebene Antriebselemente. Diese sind synchron angetrieben durch die Wellen 6c und 6d, die mittels des Kupplungselementes 10 auf der von der Presse 2 abgewandten Stirnseite 3b, in Rotation versetzt werden können. Dazu kann an dem Kupplungselement z.B. eine Handkurbel oder ein Motor angesetzt werden. Das Kupplungselement 10 weist ein Getriebe 6f auf, das die beiden zur Stirnwand parallelen Wellen 6d in Rotation versetzt, die wiederum über Kegelgetriebe in den Ecken der Werkzeugwechselplatte 3 die Wellen 6c antreiben.Two gear wheels are arranged in each of the two side walls 3a of the tool changing plate 3, the gear wheel 6a being arranged at the front with respect to the displacement direction pointing towards the press, and the gear wheel 6b at the rear. The gears 6a and 6b in each of the two side walls 3a thus form front and rear first driven driving elements. These are synchronously driven by the shafts 6c and 6d, which can be set in rotation by means of the coupling element 10 on the end face 3b facing away from the press 2. For this purpose, e.g. a hand crank or a motor can be attached to the coupling element. The coupling element 10 has a gear 6f, which rotates the two shafts 6d parallel to the end wall, which in turn drive the shafts 6c via bevel gears in the corners of the tool changing plate 3.

Parallel zu den Seitenwänden 3a verlaufen jeweilige Zahnstangen 7, die an dem Aufnahmeelement 1a angeordnet sind und dort zwischen einer Ruheposition und einer Arbeitsposition um die Drehachsen 9 verschwenkt werden können. In der Arbeitsposition kämmen die Zahnräder 6 in den Zahnstangen 7.Corresponding toothed racks 7 run parallel to the side walls 3a, which are arranged on the receiving element 1a and can be pivoted there about the axes of rotation 9 between a rest position and a working position. In the working position, the gears 6 mesh in the racks 7.

Durch Rotation der Welle im Kupplungselement 10 können somit die Zahnräder 6 alle synchron in Rotation versetzt werden, so dass diese in den Zahnstangen 7 in Richtung zur Presse vor oder auch zurückfahren können und hierbei die Werkzeugwechselplatte 3 vor oder zurückbewegen.By rotating the shaft in the coupling element 10, the gears 6 can all be set in rotation synchronously, so that they can move forwards or backwards in the toothed racks 7 in the direction of the press and thereby move the tool changing plate 3 forwards or backwards.

Bei einer Bewegung in Richtung zur Presse kommen ab einer bestimmten Bewegungsweite die vorderen Zahnräder 6a außer Eingriff mit den jeweiligen Zahnstangen 7, wobei aber die hinteren Zahnräder 6b in Eingriff bleiben und für den Vorschub sorgen. Hiernach gelangen die vorderen Zahnräder 6a in Eingriff mit den Zahnstangen 8 an der Presse 2 oberhalb der Aufspannplatte 2a, so dass die Antriebskraft oder das Antriebsdrehmoment direkt auf die Presse übertragen wird. Die zugehörige Position der Werkzeugwechselplatte ist in der Figur 1b gezeigt.When moving in the direction of the press, the front gears 6a disengage from the respective racks 7 from a certain range of movement, but the rear gears 6b remain engaged and ensure the feed. Thereafter, the front gears 6a engage with the racks 8 on the press 2 above the platen 2a, so that the driving force or torque is directly transmitted to the press. The associated position of the tool changing plate is in the Figure 1b shown.

Anschließend gelangen die hinteren Zahnräder 6b außer Eingriff mit den Zahnstangen 7, wobei der weitere Antrieb sodann alleinig über die vorderen Zahnräder 6a erfolgt die bereits in den Zahnstangen 8 kämmen. Hiernach kommen auch die hinteren Zahnräder 6b in Eingriff mit den Zahnstangen 8. Die dann erreichte Endposition ist in der Figur 1c gezeigt.Then the rear gears 6b are disengaged from the racks 7, with the further drive then taking place solely via the front gears 6a which already mesh in the racks 8. After this, the rear gears 6b come into engagement with the racks 8. The end position then reached is in the Figure 1c shown.

Der beschriebene Transfer eines nicht gezeigten Werkzeuges mit der Werkzeugwechselplatte 3 kann in umgekehrter Richtung und Weise ebenso erfolgen.The described transfer of a tool, not shown, with the tool changing plate 3 can also take place in the opposite direction and manner.

Erkennbar ist in den Figuren, dass außer dem Raum für die Haltekonsole aus Tragstützen 1b, Aufnahmeelement 1a und den Fixierstreben 1c kein weiterer Raum für eine Antriebseinheit benötigt wird. Ein Motor kann z.B. in einfacher Ausführung als Akkuschrauber ausgebildet sein oder Druckluftmotor mit faktisch keiner Bauraumanforderung. Ein Motor kann auch als 2-kanalig abgesicherter Antrieb ausgebildet sein.It can be seen in the figures that no further space is required for a drive unit apart from the space for the holding bracket made up of support brackets 1b, receiving element 1a and the fixing struts 1c. A motor can, for example, be designed in a simple design as a cordless screwdriver or a compressed air motor with practically no space requirements. A motor can also be designed as a 2-channel secured drive.

Die Erfindung ist somit gegenüber dem Stand der Technik sehr kleinbauend und günstig zu realisieren, da die wesentlichen Komponenten der Antriebsvorrichtung in die Werkzeugwechselplatte bereits integriert sind und die antreibenden Kräfte / Drehmomente direkt zwischen der Werkzeugwechselplatte und dem Aufnahmeelement bzw. der Presse wirken und keine externe Abstützung benötigen. Darüber hinaus kann das Aufnahmeelement 1a platzsparend an das Pressengestell 2 geklappt werden, wenn es nicht benötigt wird.The invention can therefore be implemented very compactly and inexpensively compared to the prior art, since the essential components of the drive device are already integrated in the die changing plate and the driving forces/torques act directly between the die changing plate and the receiving element or the press and no external support require. In addition, the receiving element 1a can be folded onto the press frame 2 to save space when it is not required.

Claims (8)

  1. Tool fitting aid for fitting a tool (3d) in a press, in particular a fine blanking press, comprising:
    a. a retaining bracket (1) which is able to be fastened to a column/frame (2) of a press,
    b. a tool changing plate (3) in or on which a tool (3d) to be changed is able to be fastened, wherein the tool changing plate (3) is able to be placed on a receiving element (1a) of the retaining bracket (1),
    c. wherein a drive device (4) with which the tool changing plate (3) is able to be displaced on the receiving element (1a) is arranged in the tool changing plate (3),
    d. wherein the drive device (4) of the tool changing plate (3) comprises at least one driven first drive element (6) and the receiving element (1a) comprises at least one non-driven second drive element (7), which are operatively connected in order to displace the tool changing plate (3),
    e. wherein the at least one first drive element (6a) is in the form of a driven gear and the at least one second drive element (7) is in the form of a rack engaging therewith by meshing,
    characterized in that
    f. the rack of the second drive element (7) is pivotable from a rest position into a working position about an axis of rotation (9) lying parallel to the displacement direction and parallel to the rack extent, and the at least one second drive element (7) is operatively connected to the at least one first drive element (6) only in the working position.
  2. Tool fitting aid according to Claim 1, characterized in that at least one driven front first drive element (6a) and at least one driven rear first element (6b) are arranged on the tool changing plate (3) with regard to the displacement direction, wherein the front and rear drive elements (6a, 6b) are driven synchronously and the at least one front and at least one rear first drive element (6a, 6b) are in the form of a driven gear and the at least one second drive element (7) is in the form of a rack engaging therewith by meshing.
  3. Tool fitting aid according to Claim 2, characterized in that, in a first displacement region, in particular an initial displacement region, the at least one front (6a) and the at least one rear (6b) drive element are operatively connected simultaneously to the same second drive element (7) and in a second displacement region following the first in the displacement direction, only the at least one rear (6b) first drive element is operatively connected to the second drive element (7) .
  4. Tool fitting aid according to Claim 3, characterized in that, in a third displacement region, which follows the second displacement region in the displacement direction, the at least one front and at least one rear first drive element (6a, 6b) are not operatively connected to the at least one second drive element (7).
  5. Tool fitting aid according to any of the preceding claims, characterized in that at least one front and at least one rear first drive element (6a, 6b) is arranged on the tool changing plate (3) on each of the two opposite side walls (3a) that extend parallel to the displacement direction, said at least one front and at least one rear first drive element in particular being operatively connected to at least one respective second drive element (7), arranged on the receiving element (1a) along the respective side wall (3a), for displacement.
  6. Tool fitting aid according to any of the preceding claims and Claim 2, characterized in that the driven front and rear gears of the first drive elements (6a, 6b) are each fastened to a common first drive shaft (6c), and each first drive shaft (6c) is coupled, at its rear end (6c') in the displacement direction to a respective second drive shaft (6d) lying perpendicularly thereto, in particular via bevel gears (6e).
  7. Tool fitting aid according to Claim 6, characterized in that, via a rotatable coupling element (10) which is arranged on an end wall (3b), lying perpendicularly to the side walls (3a), of the tool changing plate (3), a rotary movement generated manually or by a motor is able to be transmitted to the second drive shafts (6d), in particular via a gear mechanism (6f).
  8. Tool fitting aid according to any of the preceding claims, characterized in that the receiving element (1a) is fastened in an articulated manner to bearing supports (1b) of the retaining bracket (1).
EP19168429.9A 2019-04-10 2019-04-10 Tool insertion aid Active EP3722019B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP19168429.9A EP3722019B1 (en) 2019-04-10 2019-04-10 Tool insertion aid
ES19168429T ES2951563T3 (en) 2019-04-10 2019-04-10 Tool installation help
CA3074486A CA3074486A1 (en) 2019-04-10 2020-03-04 Tool installation aid
JP2020045944A JP2020171963A (en) 2019-04-10 2020-03-17 Tool incorporation auxiliary body
US16/843,875 US11691372B2 (en) 2019-04-10 2020-04-08 Tool installation aid
CN202010277565.XA CN111805961B (en) 2019-04-10 2020-04-10 Auxiliary device for tool installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19168429.9A EP3722019B1 (en) 2019-04-10 2019-04-10 Tool insertion aid

Publications (3)

Publication Number Publication Date
EP3722019A1 EP3722019A1 (en) 2020-10-14
EP3722019C0 EP3722019C0 (en) 2023-06-07
EP3722019B1 true EP3722019B1 (en) 2023-06-07

Family

ID=66105063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19168429.9A Active EP3722019B1 (en) 2019-04-10 2019-04-10 Tool insertion aid

Country Status (6)

Country Link
US (1) US11691372B2 (en)
EP (1) EP3722019B1 (en)
JP (1) JP2020171963A (en)
CN (1) CN111805961B (en)
CA (1) CA3074486A1 (en)
ES (1) ES2951563T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113458914B (en) * 2021-07-15 2022-06-14 安徽新境界自动化技术有限公司 Robot is polished and is used cutter quick replacement system

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Also Published As

Publication number Publication date
ES2951563T3 (en) 2023-10-23
EP3722019C0 (en) 2023-06-07
CN111805961A (en) 2020-10-23
US11691372B2 (en) 2023-07-04
CA3074486A1 (en) 2020-10-10
EP3722019A1 (en) 2020-10-14
US20200324502A1 (en) 2020-10-15
CN111805961B (en) 2023-10-03
JP2020171963A (en) 2020-10-22

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