EP3318397B1 - Method for handling a load, in particular a press tool, corresponding handling device and press provided with such a device - Google Patents

Method for handling a load, in particular a press tool, corresponding handling device and press provided with such a device Download PDF

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Publication number
EP3318397B1
EP3318397B1 EP17197951.1A EP17197951A EP3318397B1 EP 3318397 B1 EP3318397 B1 EP 3318397B1 EP 17197951 A EP17197951 A EP 17197951A EP 3318397 B1 EP3318397 B1 EP 3318397B1
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EP
European Patent Office
Prior art keywords
tool
press
handling device
transfer
press table
Prior art date
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Active
Application number
EP17197951.1A
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German (de)
French (fr)
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EP3318397A1 (en
Inventor
Marc Gelinotte
Julien Marcelli
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Dimeco SAS
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Dimeco SAS
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Publication date
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Priority to PL17197951T priority Critical patent/PL3318397T3/en
Publication of EP3318397A1 publication Critical patent/EP3318397A1/en
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Publication of EP3318397B1 publication Critical patent/EP3318397B1/en
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    • 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
    • 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

Definitions

  • the present invention relates to a method of handling a load, in particular of a tool on a press, said press comprising a frame provided with lateral columns, and a press table situated between said lateral columns, providing on both sides from the press table a free gap passing through, said press table defining a transfer plane and being arranged to receive said tool in a working position, said press being equipped with a handling device arranged to move said tool by pushing and traction in said transfer plane between a waiting position and a working position, this handling device comprising two transfer mechanisms each provided with hooking members intended to cooperate with complementary receiving members provided on said tool, and drive means coupled to said latching members to move them in translation in said transfer plane t selectively in one direction and in the opposite direction between two extreme positions covering at least the standby position and the working position of said tool, said means for driving the two transfer mechanisms being coupled to operate synchronously.
  • the invention relates to a press equipped with a handling device allowing the implementation of the above handling process, a handling device arranged to equip said press, as well as a press tool comprising a sole provided with at least two parallel lateral edges arranged to be able to operate with said handling device.
  • Press tools used for cutting, stamping, etc. are usually deposited on a press and then taken up from said press by conventional handling means, such as an overhead crane, forklift or the like. They are generally placed on standby on one or more tool holder supports arranged in front of the press table, and are transferred from the tool holder to the press table and vice versa by pushing and pulling in a transfer plane by means of a specific handling device external or integrated into the press.
  • Tool holders are commonly called tool consoles. They are used in pairs, arranged in parallel, and made up of mechanical parts in the form of a square defining the transfer plane, generally horizontal, on which the tool is stored. To facilitate the movement of the tool relative to the tool holder consoles, the latter comprise rolling means in said transfer plane, these rolling means generally comprising cylindrical rollers to guarantee a displacement of the tool parallel to it- even.
  • the tool holder consoles can be fixed, adjoining the press table and bolted to the press frame. They can also be mobile, on board trolleys, which run on rails on the ground in order to be able to move the tool-holder consoles in translation perpendicular to the press table.
  • the push and pull handling devices are associated either with the tool holder consoles or with the press, to carry out the tool change. They consist in removing the working tool from the press table and depositing a new standby tool there. They can be installed on one side of the press opposite the tool holders or on the side containing the tool holders. Most handling devices have the disadvantage of blocking access to at least one side of the press, or even to both sides of the press, due to the space occupied by the handling device and the tool-holder consoles. the tool development operations considerably. In addition, when changing tools, either to change production, or to replace a defective tool, the press is immobilized and production is interrupted. Indeed, known handling devices do not allow to work in hidden time, that is to say to load a tool for the next production, without interrupting the production of the press with the tool in work.
  • the publications JP 58 053 334 and EP 468 855 A1 propose a solution in which the handling device is installed in a fixed position in front of the press on the side opposite to a mobile tool table perpendicular to the press. In addition to blocking access from both sides of the press, this handling device requires equipping the press during its construction with specific rails mounted inside the press table to allow the circulation of the coupling members for temporarily link the handling device to the tool.
  • EP 468 855 A1 describes in particular a press tool according to the preamble of claim 18.
  • the publication DE 34 33 566 A1 describes a press tool handling system according to the preamble of claim 7 comprising two transfer mechanisms housed in longitudinal grooves crossing the press table right through so as to be able to extend well beyond the press table in complementary grooves of a tool changer carriage adjacent to the press.
  • This system also requires lifting means to raise and lower the tool relative to the press table, the raised position allowing the change of tools.
  • the publication GB 1,418,250 describes a press tool handling system comprising two transfer mechanisms housed in grooves longitudinal provided in the press table, and bearing rollers arranged opposite rolling rollers provided in a console adjacent to the press table. Each transfer mechanism is movable vertically by a piston between a raised position above the level of the press table allowing the tool change and a lowered position below the level of the press table.
  • the present invention aims to overcome the drawbacks of the state of the art by proposing a compact and versatile handling device, designed to minimize the trajectories of the tools and therefore the tool change times, making it possible to work in masked time.
  • a compact and versatile handling device designed to minimize the trajectories of the tools and therefore the tool change times, making it possible to work in masked time.
  • the invention relates to a handling method according to claim 1.
  • One of the sides of the press table can be equipped with a pair of tool consoles and control said handling device to move a tool from a standby position on the pair of tool consoles to a position of work on the press table and vice versa.
  • said tool is fitted with a receiving member on each of its lateral sides.
  • each transfer mechanism may include a movable drive finger along an axis perpendicular to said transfer plane, projecting into said transfer plane and intended to be housed in an orifice 'a sole of said tool forming said complementary receiving member.
  • each transfer mechanism may comprise a drive finger pivoting between an unlocked position in which it is not engaged with the receiving member of said tool and a position locked in which it is engaged with the receiving member of said tool
  • said receiving members may each comprise a laterally open orifice provided in a sole of said tool and arranged to receive the drive finger of one of the transfer mechanisms when in the locked position.
  • Said drive means of each transfer mechanism may comprise a mechanical transmission coupled on the one hand to said movable carriage and on the other hand to a rotary actuator, said mechanical transmission being arranged to transform the rotational movement of said rotary actuator into a movement of translation of said mobile carriage.
  • Said drive means may include an actuator common to the two transfer mechanisms.
  • the mechanical transmissions of the two transfer mechanisms are linked together by a connecting shaft.
  • They can also include two actuators, each coupled to a mechanical transmission of one of the transfer mechanisms.
  • said actuators are slaved to each other to operate synchronously.
  • each transfer mechanism may include a drive finger extending in said movable carriage along an axis perpendicular to said transfer plane, projecting into said transfer plane and intended to be housed in an orifice or a recess in the sole of said tool forming said complementary receiving member.
  • the handling device can comprise at least two specific receiving members, separate from said transfer mechanisms, each provided with an orifice for receiving a drive finger, and intended to be attached to the sole of said tool.
  • the drive finger can be fixed or mounted movable in axial translation in said movable carriage. In this case, it is secured by a return member in its projecting position in the transfer plane when it is at rest, and authorizing its retraction in a retracted position relative to said transfer plane when it is constrained by a support. outside opposing said return member.
  • each transfer mechanism may comprise a drive finger mounted to pivot in said movable carriage around a pivot axis, secured by a control system between an unlocked position in which it is not engaged with the receiving member of said tool and a locked position in which it is engaged with the receiving member of said tool.
  • control system advantageously comprises a return member arranged to automatically recall said drive finger from the unlocked position to the locked position and an unlocking handle arranged to move said drive finger from its locked position to a unlocked position.
  • the drive finger can be mounted on a lever integral with said unlocking handle, and said return member extends between said lever and the movable carriage.
  • the control system may further include an indexing finger arranged to lock said unlocking handle in the unlocked position.
  • the invention relates to a press tool according to claim 18.
  • said sole may comprise in each of its two lateral edges at least one through orifice arranged to receive the drive finger of one of the transfer mechanisms of said handling device.
  • the receiving members can be attached to the lateral edges of the sole of said tool and each comprise a plate provided with a through hole arranged to receive the drive finger of one of the transfer mechanisms of said handling device.
  • said sole may include in each of its two lateral edges two orifices open laterally, in the end zones of said lateral edge, and arranged to selectively receive the drive finger of one of the transfer mechanisms of said handling device.
  • said receiving members can be attached to the lateral edges of the sole of said tool and comprise two plates provided with an orifice open laterally, in the end zones of each lateral edge, and arranged to receive selectively the drive finger of one of the transfer mechanisms of said handling device.
  • the handling device 10, 20 allows the handling of a load, such as a tool 2, by linear displacement of the tool 2 in a transfer plane T by pushing and pulling. It is commonly called a rickshaw device.
  • This handling device 10, 20 is more particularly designed to be integrated in a machine tool, such as a press 1.
  • the use of the handling device of the invention in a press 1 for loading and unloading the tools 2, with reference to the figures, is however not limiting and extends to any other machine tool requiring the movement of a load, a tool, a metal mass, etc. To simplify the rest of the description, we will speak of press 1 and tool 2, without these terms being limiting.
  • the press 1 comprises a frame 4 provided with uprights or lateral columns 6, and a press table 5 situated between the lateral columns 6, providing a free interval I on either side of the press table crossing.
  • the press 1 is only partially shown to simplify the drawings.
  • the press table 5 is shown with only part of the frame 4 and columns 6 for viewing the two intervals I, delimited between the parallel lateral edges of the press table 5 and the side columns 6.
  • the press table 5 comprises two transverse edges, mutually parallel, defining the so-called accessible sides of the press 1, which are perpendicular to the lateral columns 6 and allow access to the press table 5 for loading and unloading a tool 2.
  • the press table 5 is flat and defines a transfer plane T in which a tool 2 is moved by a handling device 10, 20, such as that of the invention, between a standby position outside and near the press table 5 at least one of its accessible sides, and a working position on the press table 5 and vice versa.
  • the press 1 is equipped on one and / or the other of its accessible sides with a pair of tool holder consoles 7 defining the standby position of said tool 2.
  • the tool holder consoles 7 are , in the examples illustrated, fixed to the frame 4 of the press 1, and constitute known mechanical elements which will not be described in more detail.
  • the plane defined by the pair of tool holder consoles 7 is arranged in the extension of the plane defined by the press table 5 together forming said transfer plane T.
  • the tool 2 is generally supported by a sole 3 whose surface is greater than that of tool 2, which is used to handle tool 2 and to fix it securely on the press table 5.
  • the press 1 is therefore equipped with a handling device 10, 20 which will make it possible to move the tool 2 by pushing and pulling in the transfer plane T between a waiting position and a working position.
  • This handling device 10, 20 is particularly suitable for integration into the press 1, as an initial assembly on a new press or as a second assembly on a press already in service, so as to not condemn either of the two accessible sides of the tables press 5.
  • the operator can more easily intervene on the tool 2 to adjust its position on the press table 5 before securing it therein.
  • the handling device for this purpose comprises two transfer mechanisms 11, 12 specially designed to integrate in the interval I existing between the press table 5 and the lateral columns 6, making it possible to very easily mount the handling device 10 to the interior of the press 1, on either side of the press table 5, thus requiring no modification of the press table 5.
  • These two transfer mechanisms 11, 12 are therefore positioned parallel to each other to the other and extend beyond the accessible sides of the press table 5, since their length is greater than the depth of the press table 5 while remaining close to its two accessible sides.
  • These two transfer mechanisms 11, 12 are structurally identical. They each comprise a latching member 40, 50 arranged to cooperate with a complementary receiving member 60, 70 provided on the tool 2, and drive means 80 coupled to said latching member 40, 50 to move it in translation in the transfer plane T selectively in one direction and in the opposite direction between two extreme positions covering at least the standby position and the working position of said tool 2. Due to their integration in the press 1, the organs of 'hooking 40, 50 of the two transfer mechanisms 11, 12 circulate laterally outside the press table 5 between two extreme positions which are located outside the press table 5 while remaining close to its two accessible sides.
  • FIGS 1 to 5 illustrate a first embodiment of the handling device 10 according to the invention mounted on a press 1 equipped with a pair of tool holder consoles 7 on only one of the accessible sides making it possible to load and unload a tool 2 by the same side of the press 1, as shown in the Figures 1A and 1B where tool 2 is in the waiting position in the figure 1A and in working position in the figure 1B .
  • Each transfer mechanism 11, 12 comprises a guide rail 13 of width less than the width of the gap I in which it is mounted. It contains at least partially the drive means 80 and the hooking member 40 is carried by a mobile carriage 41 coupled to the drive means 80 and guided in translation in the guide rail 13.
  • the drive means 80 comprise, in each transfer mechanism 11, 12, a mechanical transmission arranged to transform the rotational movement of a rotary actuator into a translational movement of the fastening members 40. This translational movement is alternating in one direction and in the opposite direction to move the hooking members 40 from one end to the other end of the transfer mechanisms 11, 12 to define their two extreme positions.
  • the two mechanical transmissions are coupled together to guarantee a synchronous movement of said hooking members 40 parallel to themselves.
  • each mechanical transmission comprises a transmission chain 81 circulating in a loop between a driving pinion 82 and a driven pinion 83, both carried by bearings provided in the ends of the guide rails 13.
  • the driving pinions 83 of the two mechanical transmissions are coupled by a connecting shaft 84, which is rotated by a motor 85 and a transmission 88, arranged outside of the guide rails 13.
  • the motor 85 is a reversible motor and can be made of any type of motor, gear motor, servomotor, or similar.
  • the movable carriages 41 of the hooking members 40 are secured to the upper strand of the transmission chain 81 by jumpers 42 fixed in place of one or more links of the transmission chain 81 and are guided linearly in the rail. guide 13 by means of a guide shoe 86 circulating on a slide 87 integral with the guide rail 13 (see figure 4A ).
  • the slide 87 has a diabolo-shaped section delimiting two frustoconical and opposite circulation grooves.
  • the guide shoe 86 includes means of rolling such as cylindrical rollers (not shown) arranged to roll in said grooves of circulation of the slide 87.
  • the transfer mechanisms 11, 12 comprise a bracket 14 at each of their ends allowing their attachment to the frame 4 of the press 1.
  • One of the brackets 14 comprises a support plate on which the motor 85 is fixed.
  • the drive means for the attachment members 40 may comprise two motors, one for each transfer mechanism 11, 12. In this case, the two motors are synchronized by a control unit.
  • the transmission chains 81 and the driving sprockets 82 and driven 83 can be replaced by a toothed belt and toothed wheels, or by a worm and a nut. It is also possible to envisage double-acting cylinders in place of the mechanical transmissions and of the motor or motors 85. These examples show some possible embodiments without departing from the invention.
  • the fastening members 40 include, in the example, Figures 1 to 3 a drive finger 43 extending in the movable carriage 41 along an axis A perpendicular to the transfer plane T to be projecting in the transfer plane T so as to be able to be housed in an orifice 61 in the sole 3 of the tool 2 forming the complementary receiving member 60.
  • the tool 2 is coupled to the handling device 10 and can be moved in translation in the transfer plane T.
  • the sole 3 of the tool 2 comprises, in each of its two lateral edges and near one of its transverse edges, at least one through hole 61 arranged to receive the drive finger 43 of a transfer mechanisms 11, 12.
  • the stroke of the tool 2 is limited to a round trip on the same pair of tool-holder consoles 7.
  • the sole 3 of the tool 2 could include an orifice 61 in each of its angles. Providing for orifices 61 directly in the sole 3 of the tool 2, for example by machining, is a coupling solution which is simple to produce and very inexpensive. This solution is however only possible if the sole 3 of the tool 2 has a width greater than the width of the press table 5 and protrudes laterally from the press table 5 to be located above the existing intervals I between the press table 5 and the lateral columns 6.
  • the drive fingers 43 form at the same time indexing means of the tool 2 on the tool holder consoles 7 facilitating its positioning on the press table 5.
  • These drive fingers 43 can be mounted fixed in the mobile carriage 41. However, they are mounted movable in axial translation along axis A in the mobile carriage 41 so that they can retract automatically when the tool 2 is removed when the latter is placed on the consoles. tools 7.
  • the movable drive fingers 43 have no external control. They are simply secured by a return member 44 in projecting position in the transfer plane T when they are at rest.
  • This return member 44 consists of a helical spring, or any similar return member, disposed in the axis A between the mobile carriage 41 and the drive finger 43.
  • each mobile drive finger 43 in the projecting position is limited for example by means of a stroke limit screw 45 or any other equivalent means.
  • the advantage of this elastic mounting is to preserve the drive fingers 43 from any damage during the installation and removal of the tool 2 by a handling machine on the tool holder consoles 7 and therefore on the drive fingers 43 of the transfer mechanisms 11, 12.
  • the fingers drive 43 can then, under the effect of a pressing force exerted by the tool 2, automatically retract into a retracted position relative to the transfer plane T avoiding any deterioration or breakage.
  • the receiving members 70 are attached to the tool 2 and no longer integrated as in the previous example. They thus comprise two plates 71 fixed to the sole 3 of the tool 2 in at least two of its angles and on the same transverse side, each plate 71 being provided with a through hole 72 for receiving a drive finger 42 of the device handling 10.
  • the stroke of the tool 2 is limited to a round trip on the same pair of tool-holder consoles 7.
  • the sole 3 of the tool 2 could include a plate 71 in each of its angles.
  • This coupling solution is also very simple and inexpensive, making it possible to equip tools 2 having a sole 3 whose width corresponds substantially to the width of the press table 5 and does not allow the holes 61 to be machined directly in its side edges, as in the example described above.
  • the figures 6 to 10 illustrate a second embodiment of the handling device 20 according to the invention mounted on a press 1 equipped in this version with two pairs of tool holder consoles 7 on its two accessible sides making it possible to load a tool 2 from one of the sides and unload the tool 2 from the other side of the press 1.
  • This solution is particularly advantageous because it makes it possible to work in hidden time, that is to say to load a tool 2 in the waiting position on a pair of tool holder consoles 7 while another tool 2 is in the working position on the press table 5, as explained with reference to Figures 10A to 10D .
  • Parts, parts of parts and subassemblies which are identical to the previous example have the same reference numbers.
  • the transfer mechanisms 11, 12 of the handling device 20 are identical to the previous example.
  • the hooking members 50 are, as in the previous example, each carried by a mobile carriage 51, fixed to the upper strand of the transmission chain 81 by jumpers 52 fixed in place of one or more links of the chain 81. They differ from the previous example in that they each comprise a drive finger 53 pivotally mounted in the mobile carriage 51 along an axis B. This pivot axis B is parallel to the guide rail 13.
  • Each drive finger 53 is secured by a control system between an unlocked inclined position as shown in the figures 6 and 9 , in which it is not engaged with the receiving member 70 of the tool 2 and a vertical locked position, in which it is engaged with the receiving member 70 of the tool 2 making it possible to move the 'hooking member 50 relative to the tool 2.
  • This control system comprises, in the example shown, a return member 54 arranged to return the drive finger 53 from the unlocked position to the locked position and a unlocking handle 55 arranged to move the drive finger 53 from its locked position to an unlocked position.
  • the drive finger 53 is mounted on a lever 56 by a fixing piece 57 and the return member 54 extends between the lever 56 and the movable carriage 51.
  • the unlocking handle 55 is arranged at one of the ends of each transfer mechanism 11, 12 and secured to the lever 56 by a splined shaft 58 which extends all along and parallel to the guide rail 13.
  • This unlocking handle 55 is held in the unlocked position by an indexing finger 59 oriented perpendicular to the pivot plane of the release handle 55, and mounted in a stirrup 15 fixed to the guide rail 13 ( figure 6A ).
  • This indexing finger 59 is secured by a return member (not visible) in the direction of the unlocking handle 55 which has an indexing hole (not visible) for receiving the indexing finger 59 when it is in position unlocked.
  • the unlocking handle 55 and the indexing finger 59 of each transfer mechanism 11, 12 are intended to be handled by a press operator.
  • the receiving members 70 are attached to the tool 2 and comprise four plates 71 fixed on the sole 3 of the tool 2 in its four angles, each plate 71 being provided with an orifice 73 open laterally to receive a drive finger 53 when it passes from an unlocked position to a locked position.
  • the stroke of the tool 2 is extended to a crossing of the press table 5 from a pair of tool holder consoles 7 to the pair of opposite tool holder consoles 7, and is limited to this crossing, which represents a reduced stroke compared to the state of the art.
  • this coupling solution is also very simple and inexpensive, making it possible to equip tools 2 having a sole 3 whose width is substantially equal to the width of the press table 5 and does not allow machining directly openings laterally open in its lateral edges.
  • these orifices open laterally could be machined directly in its lateral edges.
  • the handling device 10 makes it possible to load and unload the tools 2 from a single accessible side of the press table 5, namely the side where the tool holder consoles are located.
  • the handling device 20 makes it possible to load and unload the press tools 2 from the two accessible sides of the press table 5, since they are each equipped with tool holder consoles 7, thus making it possible to work in hidden time, as explained below, therefore saving considerable time in tool change operations.
  • the Figures 10A to 10D illustrate a process for handling press tools 2 on a press 1, equipped with a pair of tool holder consoles 7 on each of its sides, and the handling device 20 according to the invention, which makes it possible to work in masked time as explained below.
  • the tools 2 are equipped with four receiving members 70, ie a receiving member 70 in each corner of the sole 3.
  • the figure 10A illustrates a first tool 2 which has been deposited by any known handling means in the standby position on the tool holder consoles 7 on the front side AV of the press 1.
  • the front side AV of the press 1 is called its right side in the figures, and the rear rear side of the press 1, its left side on the Figures 10A to 10D .
  • the attachment means 50 of the transfer mechanisms 11, 12 are positioned on the front side AV of the press 1 and in the locked position in the reception means 70 of the first tool 2 which are near the press table 5.
  • the handling device 20 is actuated in order to move the hooking members 50 from the front side AV towards the rear side AR of the press 1, and consequently the first tool 2 of the tool holder consoles 7 at the press table 5
  • the press 1 can start quickly to work with the first tool 2 after having fixed it on the press table 5.
  • a second tool 2 is deposited, by any known handling means, on the tool holder consoles 7 on the front side AV of the press 1 while the press 1 is working with the first tool 2.
  • the operator can unlock the hooking members 50 of the first tool 2 by pulling on the indexing finger 59 and pivoting the unlocking handle 55 downwards of each transfer mechanism 11, 12 to release the receiving means 70 of the first tool 2
  • It actuates the handling device 20 in order to move the organs hooking 50 from the rear side AR towards the front side AV of the press 1 to bring them opposite the receiving members 70 of the second tool 2, which are close to the press table 5.
  • the handling device 20 is actuated in order to move the hooking members 50 from the front side AV towards the rear side AR of the press 1, and by Consequently, the second tool 2 from the tool holder consoles 7 to the press table 5, by simultaneously pushing the first tool 2 to move it from the press table 5 to the tool consoles 7 on the rear side AR of the press 1.
  • the press 1 can be restarted quickly to work with the second tool 2 after having fixed it on the press table 5.
  • the first tool 2 in the standby position on the tool holder consoles on the rear side AR of the press 1 can be removed by any known handling means, and a third tool 2 (not shown) can be placed on the tool holder consoles 7 on the front side AV of press 1.
  • the invention achieves the goals set, namely a handling device 10, 20 simple, economical, versatile, very space-saving, being able to integrate very easily and inexpensively in a press without penalizing its operation, nor its accesses on its two sides, allowing a reduction in the stroke of the tools, and offering a possibility of loading and unloading a tool in hidden time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Press Drives And Press Lines (AREA)

Description

Domaine technique :Technical area :

La présente invention concerne un procédé de manutention d'une charge, notamment d'un outil sur une presse, ladite presse comportant un bâti pourvu de colonnes latérales, et une table de presse située entre lesdites colonnes latérales en ménageant de part et d'autre de la table de presse un intervalle libre traversant, ladite table de presse définissant un plan de transfert et étant agencée pour recevoir ledit outil dans une position de travail, ladite presse étant équipée d'un dispositif de manutention agencé pour déplacer ledit outil par poussée et traction dans ledit plan de transfert entre une position d'attente et une position de travail, ce dispositif de manutention comportant deux mécanismes de transfert chacun pourvu d'organes d'accrochage destinés à coopérer avec des organes de réception complémentaires prévus sur ledit outil, et de moyens d'entraînement couplés auxdits organes d'accrochage pour les déplacer en translation dans ledit plan de transfert sélectivement dans un sens et dans le sens inverse entre deux positions extrêmes recouvrant au moins la position d'attente et la position de travail dudit outil, lesdits moyens d'entraînement des deux mécanismes de transfert étant couplés pour fonctionner de manière synchrone.The present invention relates to a method of handling a load, in particular of a tool on a press, said press comprising a frame provided with lateral columns, and a press table situated between said lateral columns, providing on both sides from the press table a free gap passing through, said press table defining a transfer plane and being arranged to receive said tool in a working position, said press being equipped with a handling device arranged to move said tool by pushing and traction in said transfer plane between a waiting position and a working position, this handling device comprising two transfer mechanisms each provided with hooking members intended to cooperate with complementary receiving members provided on said tool, and drive means coupled to said latching members to move them in translation in said transfer plane t selectively in one direction and in the opposite direction between two extreme positions covering at least the standby position and the working position of said tool, said means for driving the two transfer mechanisms being coupled to operate synchronously.

L'invention concerne une presse équipée d'un dispositif de manutention permettant la mise en œuvre du procédé de manutention ci-dessus, un dispositif de manutention agencé pour équiper ladite presse, ainsi qu'un outil de presse comportant une semelle pourvue d'au moins deux bords latéraux parallèles agencé pour pouvoir fonctionner avec ledit dispositif de manutention.The invention relates to a press equipped with a handling device allowing the implementation of the above handling process, a handling device arranged to equip said press, as well as a press tool comprising a sole provided with at least two parallel lateral edges arranged to be able to operate with said handling device.

Technique antérieure :Prior art:

Les outils de presse, appelés par la suite « outils », utilisés pour la découpe, l'emboutissage, etc. sont habituellement déposés sur une presse puis repris de ladite presse par des moyens de manutention classiques, tels que pont roulant, chariot élévateur ou similaire. Ils sont généralement déposés en attente sur un ou plusieurs supports porte-outils disposés devant la table de presse, et sont transférés du support porte-outils à la table de presse et inversement par poussée et traction dans un plan de transfert au moyen d'un dispositif de manutention spécifique externe ou intégré à la presse.Press tools, hereinafter called "tools", used for cutting, stamping, etc. are usually deposited on a press and then taken up from said press by conventional handling means, such as an overhead crane, forklift or the like. They are generally placed on standby on one or more tool holder supports arranged in front of the press table, and are transferred from the tool holder to the press table and vice versa by pushing and pulling in a transfer plane by means of a specific handling device external or integrated into the press.

Les supports porte-outils sont appelés communément des consoles porte-outils. Elles sont utilisées par deux, disposées en parallèle, et constituées de pièces mécaniques en forme d'équerre définissant le plan de transfert, généralement horizontal, sur lequel est entreposé l'outil. Pour faciliter le déplacement de l'outil par rapport aux consoles porte-outils, ces dernières comportent des moyens de roulement dans ledit plan de transfert, ces moyens de roulement comportant généralement des rouleaux cylindriques pour garantir un déplacement de l'outil parallèle à lui-même. Les consoles porte-outil peuvent être fixes, attenantes à la table de presse et boulonnées au bâti de la presse. Elles peuvent également être mobiles, embarquées sur des chariots, lesquels circulent sur des rails au sol pour pouvoir déplacer les consoles porte-outils en translation perpendiculaire par rapport à la table de presse.Tool holders are commonly called tool consoles. They are used in pairs, arranged in parallel, and made up of mechanical parts in the form of a square defining the transfer plane, generally horizontal, on which the tool is stored. To facilitate the movement of the tool relative to the tool holder consoles, the latter comprise rolling means in said transfer plane, these rolling means generally comprising cylindrical rollers to guarantee a displacement of the tool parallel to it- even. The tool holder consoles can be fixed, adjoining the press table and bolted to the press frame. They can also be mobile, on board trolleys, which run on rails on the ground in order to be able to move the tool-holder consoles in translation perpendicular to the press table.

Les dispositifs de manutention par poussée et traction sont associés soit aux consoles porte-outils, soit à la presse, pour effectuer le changement d'outil. Ils consistent à retirer l'outil en travail de la table de presse et à y déposer un nouvel outil en attente. Ils peuvent être installés d'un côté de la presse qui est opposé aux consoles porte-outils ou du côté comportant les consoles porte-outils. La plupart des dispositifs de manutention a pour inconvénient de condamner l'accès à au moins un des côtés de la presse, voire aux deux côtés de la presse, du fait de l'encombrement du dispositif de manutention et des consoles porte-outils, gênant considérablement les opérations de mise au point de l'outil. De plus, lors d'un changement d'outil, soit pour changer de production, soit pour remplacer un outil défectueux, la presse est immobilisée et la production est interrompue. En effet, les dispositifs de manutention connus ne permettent pas de travailler en temps masqué, c'est-à-dire de charger un outil pour la production suivante, sans interrompre la production de la presse avec l'outil en travail.The push and pull handling devices are associated either with the tool holder consoles or with the press, to carry out the tool change. They consist in removing the working tool from the press table and depositing a new standby tool there. They can be installed on one side of the press opposite the tool holders or on the side containing the tool holders. Most handling devices have the disadvantage of blocking access to at least one side of the press, or even to both sides of the press, due to the space occupied by the handling device and the tool-holder consoles. the tool development operations considerably. In addition, when changing tools, either to change production, or to replace a defective tool, the press is immobilized and production is interrupted. Indeed, known handling devices do not allow to work in hidden time, that is to say to load a tool for the next production, without interrupting the production of the press with the tool in work.

La publication FR 2 966 070 du demandeur propose une solution dans laquelle le dispositif de manutention est installé en poste fixe devant la presse du même côté que la paire de consoles porte-outils. Toutefois, ce mécanisme a également pour inconvénient de condamner l'accès d'un côté de la presse, gênant considérablement les opérations de mise au point de l'outil.The publication FR 2 966 070 of the applicant proposes a solution in which the handling device is installed in a fixed position in front of the press on the same side as the pair of tool consoles. However, this mechanism also has the disadvantage of blocking access from one side of the press, considerably hampering the tool development operations.

Les publications JP 58 053 334 et EP 468 855 A1 proposent une solution dans laquelle le dispositif de manutention est installé en poste fixe devant la presse du côté opposé à une table porte-outils mobile perpendiculairement à la presse. En plus de condamner l'accès des deux côtés de la presse, ce dispositif de manutention nécessite d'équiper la presse lors de sa construction de rails spécifiques montés à l'intérieur de la table de presse pour permettre la circulation des organes de couplage pour lier temporairement le dispositif de manutention à l'outil. EP 468 855 A1 décrit en particulier un outil de presse selon le préambule de la revendication 18.The publications JP 58 053 334 and EP 468 855 A1 propose a solution in which the handling device is installed in a fixed position in front of the press on the side opposite to a mobile tool table perpendicular to the press. In addition to blocking access from both sides of the press, this handling device requires equipping the press during its construction with specific rails mounted inside the press table to allow the circulation of the coupling members for temporarily link the handling device to the tool. EP 468 855 A1 describes in particular a press tool according to the preamble of claim 18.

De manière similaire, la publication DE 34 33 566 A1 décrit un système de manutention d'outils de presse selon le préambule de la revendication 7 comportant deux mécanismes de transfert logés dans des rainures longitudinales traversant la table de presse de part en part pour pouvoir s'étendre bien au-delà de la table de presse dans des rainures complémentaires d'un chariot changeur d'outils adjacent à la presse. Ce système nécessite en outre des moyens de levage pour soulever et abaisser l'outil par rapport à la table de presse, la position levée permettant le changement d'outils.Similarly, the publication DE 34 33 566 A1 describes a press tool handling system according to the preamble of claim 7 comprising two transfer mechanisms housed in longitudinal grooves crossing the press table right through so as to be able to extend well beyond the press table in complementary grooves of a tool changer carriage adjacent to the press. This system also requires lifting means to raise and lower the tool relative to the press table, the raised position allowing the change of tools.

Dans le même esprit, la publication GB 1 418 250 décrit un système de manutention d'outils de presse comportant deux mécanismes de transfert logés dans des rainures longitudinales prévues dans la table de presse, et portant des galets de roulement disposés en regard de galets de roulement prévus dans une console attenante à la table de presse. Chaque mécanisme de transfert est mobile verticalement par un piston entre une position levée au-dessus du niveau de la table de presse permettant le changement d'outil et une position abaissée sous le niveau de la table de presse.In the same spirit, the publication GB 1,418,250 describes a press tool handling system comprising two transfer mechanisms housed in grooves longitudinal provided in the press table, and bearing rollers arranged opposite rolling rollers provided in a console adjacent to the press table. Each transfer mechanism is movable vertically by a piston between a raised position above the level of the press table allowing the tool change and a lowered position below the level of the press table.

Il existe encore des dispositifs de manutention externes à la presse qui comportent des consoles porte-outils, se positionnent devant la presse pour charger et décharger l'outil du même côté, et condamnent là encore au moins un des côtés de la presse, comme dans les dispositifs décrits dans les publications US 3 841 141 , US 4 614 108 et US 4 635 465 .There are also handling devices external to the press which include tool holder consoles, are positioned in front of the press to load and unload the tool on the same side, and again condemn at least one of the sides of the press, as in the devices described in the publications US 3,841,141 , US 4,614,108 and US 4,635,465 .

Aucune solution connue n'est satisfaisante et ne permet de réduire significativement les temps de changement d'outils compte tenu notamment des trajectoires nécessaires aux dispositifs de manutention pour d'une part évacuer l'outil d'une production terminée et d'autre part positionner un nouvel outil pour démarrer une nouvelle production.No known solution is satisfactory and does not allow to significantly reduce the tool change times taking into account in particular the trajectories necessary for the handling devices for on the one hand removing the tool from a finished production and on the other hand positioning a new tool to start a new production.

Exposé de l'invention :Statement of the invention:

La présente invention vise à pallier les inconvénients de l'état de la technique en proposant un dispositif de manutention compact et polyvalent, conçu pour réduire au minimum les trajectoires des outils et donc les temps de changement d'outils, permettant de travailler en temps masqué en fonction de ses variantes de réalisation, convenant aussi bien pour des presses neuves que pour des presses déjà en service quel que soit leur type, conçu pour pouvoir être intégré facilement à la presse, totalement escamoté par rapport à la table de presse, ne gênant pas l'accès ni d'un côté ni de l'autre de la presse, ce dispositif de manutention étant de conception simple et économiquement très compétitif, garantissant en outre une trajectoire précise de l'outil et reproductible.The present invention aims to overcome the drawbacks of the state of the art by proposing a compact and versatile handling device, designed to minimize the trajectories of the tools and therefore the tool change times, making it possible to work in masked time. according to its variant embodiments, suitable for both new presses and for presses already in service, whatever their type, designed to be easily integrated into the press, completely retracted from the press table, not annoying not access either on one side or the other of the press, this handling device being of simple design and economically very competitive, guaranteeing in addition a precise trajectory of the tool and reproducible.

Dans ce but, l'invention concerne un procédé de manutention selon la revendication 1.For this purpose, the invention relates to a handling method according to claim 1.

L'on peut équiper un des côtés de la table de presse avec une paire de consoles porte-outils et commander ledit dispositif de manutention pour déplacer un outil d'une position d'attente sur la paire de consoles porte-outils à une position de travail sur la table de presse et inversement. Dans ce cas, l'on équipe ledit outil d'un organe de réception sur chacun de ses côtés latéraux.One of the sides of the press table can be equipped with a pair of tool consoles and control said handling device to move a tool from a standby position on the pair of tool consoles to a position of work on the press table and vice versa. In this case, said tool is fitted with a receiving member on each of its lateral sides.

L'on peut également équiper les deux côtés de la table de presse avec une paire de consoles porte-outils et commander ledit dispositif de manutention pour déplacer un outil d'une position d'attente sur une paire de consoles porte-outils à une position de travail sur la table de presse, puis de la position de travail sur la table de presse à une position d'attente sur l'autre paire de consoles porte-outils, et inversement. Dans ce cas, l'on équipe ledit outil de deux organes de réception sur chacun de ses côtés latéraux.It is also possible to equip the two sides of the press table with a pair of tool holder consoles and control said handling device to move a tool from a standby position on a pair of tool holder consoles to a position working on the press table, then from the working position on the press table to a standby position on the other pair of tool consoles, and vice versa. In this case, said tool is fitted with two receiving members on each of its lateral sides.

Ce but est atteint par une presse telle que définie par la revendication 4.This object is achieved by a press as defined by claim 4.

Dans une première variante de réalisation, l'organe d'accrochage de chaque mécanisme de transfert peut comporter un doigt d'entraînement mobile selon un axe perpendiculaire audit plan de transfert, saillant dans ledit plan de transfert et destiné à se loger dans un orifice d'une semelle dudit outil formant ledit organe de réception complémentaire.In a first alternative embodiment, the attachment member of each transfer mechanism may include a movable drive finger along an axis perpendicular to said transfer plane, projecting into said transfer plane and intended to be housed in an orifice 'a sole of said tool forming said complementary receiving member.

Dans une seconde variante de réalisation, l'organe d'accrochage de chaque mécanisme de transfert peut comporter un doigt d'entraînement pivotant entre une position déverrouillée dans laquelle il n'est pas en prise avec l'organe de réception dudit outil et une position verrouillée dans laquelle il est en prise avec l'organe de réception dudit outil, et lesdits organes de réception peuvent comportent chacun un orifice ouvert latéralement prévu dans une semelle dudit outil et agencé pour recevoir le doigt d'entraînement d'un des mécanismes de transfert lorsqu'il est en position verrouillée.In a second alternative embodiment, the attachment member of each transfer mechanism may comprise a drive finger pivoting between an unlocked position in which it is not engaged with the receiving member of said tool and a position locked in which it is engaged with the receiving member of said tool, and said receiving members may each comprise a laterally open orifice provided in a sole of said tool and arranged to receive the drive finger of one of the transfer mechanisms when in the locked position.

Ce but est également atteint par un dispositif de manutention selon la revendication 7.This object is also achieved by a handling device according to claim 7.

Lesdits moyens d'entraînement de chaque mécanisme de transfert peuvent comporter une transmission mécanique couplée d'une part audit chariot mobile et d'autre part à un actionneur rotatif, ladite transmission mécanique étant agencée pour transformer le mouvement de rotation dudit actionneur rotatif en un mouvement de translation dudit chariot mobile.Said drive means of each transfer mechanism may comprise a mechanical transmission coupled on the one hand to said movable carriage and on the other hand to a rotary actuator, said mechanical transmission being arranged to transform the rotational movement of said rotary actuator into a movement of translation of said mobile carriage.

Lesdits moyens d'entraînement peuvent comporter un actionneur commun aux deux mécanismes de transfert. Dans ce cas, les transmissions mécaniques des deux mécanismes de transfert sont liées entre elles par un arbre de liaison.Said drive means may include an actuator common to the two transfer mechanisms. In this case, the mechanical transmissions of the two transfer mechanisms are linked together by a connecting shaft.

Ils peuvent également comporter deux actionneurs, chacun couplé à une transmission mécanique d'un des mécanismes de transfert. Dans ce cas, lesdits actionneurs sont asservis entre eux pour fonctionner de manière synchrone.They can also include two actuators, each coupled to a mechanical transmission of one of the transfer mechanisms. In this case, said actuators are slaved to each other to operate synchronously.

L'organe d'accrochage de chaque mécanisme de transfert peut comporter un doigt d'entraînement s'étendant dans ledit chariot mobile selon un axe perpendiculaire audit plan de transfert, saillant dans ledit plan de transfert et destiné à se loger dans un orifice ou un évidement de la semelle dudit outil formant ledit organe de réception complémentaire.The attachment member of each transfer mechanism may include a drive finger extending in said movable carriage along an axis perpendicular to said transfer plane, projecting into said transfer plane and intended to be housed in an orifice or a recess in the sole of said tool forming said complementary receiving member.

Dans une variante de réalisation, le dispositif de manutention selon la revendication peut comporter au moins deux organes de réception spécifiques, séparés desdits mécanismes de transfert, pourvus chacun d'un orifice pour recevoir un doigt d'entraînement, et destinés à être rapportés sur la semelle dudit outil.In an alternative embodiment, the handling device according to claim can comprise at least two specific receiving members, separate from said transfer mechanisms, each provided with an orifice for receiving a drive finger, and intended to be attached to the sole of said tool.

Le doigt d'entraînement peut être fixe ou monté mobile en translation axiale dans ledit chariot mobile. Dans ce cas, il est assujetti par un organe de rappel dans sa position saillante dans le plan de transfert lorsqu'il est au repos, et autorisant sa rétractation dans une position escamotée par rapport audit plan de transfert lorsqu'il est contraint par un appui extérieur s'opposant audit organe de rappel.The drive finger can be fixed or mounted movable in axial translation in said movable carriage. In this case, it is secured by a return member in its projecting position in the transfer plane when it is at rest, and authorizing its retraction in a retracted position relative to said transfer plane when it is constrained by a support. outside opposing said return member.

Dans un autre mode de réalisation de l'invention, l'organe d'accrochage de chaque mécanisme de transfert peut comporter un doigt d'entraînement monté pivotant dans ledit chariot mobile autour d'un axe de pivotement, assujetti par un système de commande entre une position déverrouillée dans laquelle il n'est pas en prise avec l'organe de réception dudit outil et une position verrouillée dans laquelle il est en prise avec l'organe de réception dudit outil.In another embodiment of the invention, the attachment member of each transfer mechanism may comprise a drive finger mounted to pivot in said movable carriage around a pivot axis, secured by a control system between an unlocked position in which it is not engaged with the receiving member of said tool and a locked position in which it is engaged with the receiving member of said tool.

Dans ce cas, le système de commande comporte avantageusement un organe de rappel agencé pour rappeler automatiquement ledit doigt d'entraînement de la position déverrouillée à la position verrouillée et une poignée de déverrouillage agencée pour déplacer ledit doigt d'entrainement de sa position verrouillée à une position déverrouillée. Le doigt d'entraînement peut être monté sur un levier solidaire de ladite poignée de déverrouillage, et ledit organe de rappel s'étend entre ledit levier et le chariot mobile. Le système de commande peut en outre comporter un doigt d'indexage agencé pour bloquer ladite poignée de déverrouillage dans la position déverrouillée.In this case, the control system advantageously comprises a return member arranged to automatically recall said drive finger from the unlocked position to the locked position and an unlocking handle arranged to move said drive finger from its locked position to a unlocked position. The drive finger can be mounted on a lever integral with said unlocking handle, and said return member extends between said lever and the movable carriage. The control system may further include an indexing finger arranged to lock said unlocking handle in the unlocked position.

Dans ce but enfin, l'invention concerne un outil de presse selon la revendication 18.For this purpose finally, the invention relates to a press tool according to claim 18.

Selon une première variante de réalisation, ladite semelle peut comporter dans chacun de ses deux bords latéraux au moins un orifice traversant agencé pour recevoir le doigt d'entraînement d'un des mécanismes de transfert dudit dispositif de manutention.According to a first alternative embodiment, said sole may comprise in each of its two lateral edges at least one through orifice arranged to receive the drive finger of one of the transfer mechanisms of said handling device.

Dans une deuxième variante de réalisation, les organes de réception peuvent être rapportés sur les bords latéraux de la semelle dudit outil et comporter chacun une plaque pourvue d'un orifice traversant agencé pour recevoir le doigt d'entraînement d'un des mécanismes de transfert dudit dispositif de manutention.In a second alternative embodiment, the receiving members can be attached to the lateral edges of the sole of said tool and each comprise a plate provided with a through hole arranged to receive the drive finger of one of the transfer mechanisms of said handling device.

Dans une troisième variante de réalisation, ladite semelle peut comporter dans chacun de ses deux bords latéraux deux orifices ouverts latéralement, dans les zones d'extrémité dudit bord latéral, et agencés pour recevoir sélectivement le doigt d'entraînement d'un des mécanismes de transfert dudit dispositif de manutention.In a third alternative embodiment, said sole may include in each of its two lateral edges two orifices open laterally, in the end zones of said lateral edge, and arranged to selectively receive the drive finger of one of the transfer mechanisms of said handling device.

Dans une quatrième variante de réalisation, lesdits organes de réception peuvent être rapportés sur les bords latéraux de la semelle dudit outil et comporter deux plaques pourvues d'un orifice ouvert latéralement, dans les zones d'extrémité de chaque bord latéral, et agencé pour recevoir sélectivement le doigt d'entraînement d'un des mécanismes de transfert dudit dispositif de manutention.In a fourth alternative embodiment, said receiving members can be attached to the lateral edges of the sole of said tool and comprise two plates provided with an orifice open laterally, in the end zones of each lateral edge, and arranged to receive selectively the drive finger of one of the transfer mechanisms of said handling device.

Description sommaire des dessins :Brief description of the drawings:

La présente invention et ses avantages apparaîtront mieux dans la description suivante de plusieurs modes de réalisation donnés à titre d'exemples non limitatifs, en référence aux dessins annexés, dans lesquels :

  • les figures 1A et 1B sont des vues en perspective d'une table de presse équipée d'un dispositif de manutention selon une première forme de réalisation de l'invention, montrant l'outil respectivement en attente et en travail,
  • la figure 2 est une vue du côté gauche de la table de presse de la figure 1B, sans les consoles porte-outils,
  • la figure 3 est une vue de dessus de la table de presse de la figure 1B,
  • la figure 4 est une vue en coupe de la table de presse de la figure 1B selon le plan de coupe IV-IV, et la figure 4B est une vue agrandie du détail de la figure 4,
  • la figure 5 est une vue en coupe de la table de presse similaire à la figure 4 avec une variante de réalisation des organes de réception prévus sur l'outil, et la figure 5A est une vue agrandie du détail de la figure 5,
  • la figure 6 est une vue en perspective d'une table de presse équipée d'un dispositif de manutention selon une troisième forme de réalisation de l'invention, sans outil, et la figure 6A est une vue agrandie du détail de la figure 6,
  • la figure 7 est une vue du côté gauche de la table de presse de la figure 6, avec un outil en travail, sans les consoles porte-outils,
  • la figure 8 est une vue de dessus de la table de presse de la figure 7,
  • la figure 9 est une vue en coupe de la table de presse de la figure 9 selon le plan de coupe IX-IX, et la figure 9A est une vue agrandie du détail de la figure 9, et
  • les figures 10A, 10B, 10C et 10D sont des vues en perspective de la table de presse de la figure 6 montrant les étapes de chargement et de déchargement d'outils en temps masque au moyen du dispositif de manutention selon la troisième forme de réalisation de l'invention.
The present invention and its advantages will appear better in the following description of several embodiments given by way of nonlimiting examples, with reference to the appended drawings, in which:
  • the Figures 1A and 1B are perspective views of a press table equipped with a handling device according to a first embodiment of the invention, showing the tool respectively on standby and in work,
  • the figure 2 is a view from the left side of the press table of the figure 1B , without the tool consoles,
  • the figure 3 is a top view of the press table of the figure 1B ,
  • the figure 4 is a sectional view of the press table of the figure 1B according to the section plane IV-IV, and FIG. 4B is an enlarged view of the detail of the figure 4 ,
  • the figure 5 is a sectional view of the press table similar to the figure 4 with an alternative embodiment of the receiving members provided on the tool, and the figure 5A is an enlarged view of the detail of the figure 5 ,
  • the figure 6 is a perspective view of a press table equipped with a handling device according to a third embodiment of the invention, without tools, and the figure 6A is an enlarged view of the detail of the figure 6 ,
  • the figure 7 is a view from the left side of the press table of the figure 6 , with a tool at work, without the tool consoles,
  • the figure 8 is a top view of the press table of the figure 7 ,
  • the figure 9 is a sectional view of the press table of the figure 9 according to the sectional plane IX-IX, and the figure 9A is an enlarged view of the detail of the figure 9 , and
  • the Figures 10A, 10B , 10C and 10D are perspective views of the press table of the figure 6 showing the steps of loading and unloading tools in mask time by means of the handling device according to the third embodiment of the invention.

Illustrations de l'invention et différentes manières de la réaliser :Illustrations of the invention and different ways of carrying it out:

En référence aux figures, le dispositif de manutention 10, 20 selon l'invention permet la manutention d'une charge, telle qu'un outil 2, par déplacement linéaire de l'outil 2 dans un plan de transfert T par poussée et traction. Il est communément appelé un dispositif tire-pousse. Ce dispositif de manutention 10, 20 est plus particulièrement conçu pour être intégré dans une machine-outil, telle qu'une presse 1. L'utilisation du dispositif de manutention de l'invention dans une presse 1 pour charger et décharger les outils 2, en référence aux figures, n'est toutefois pas limitative et s'étend à toute autre machine-outil nécessitant le déplacement d'une charge, d'un outil, d'une masse métallique, etc. Pour simplifier la suite de la description, on parlera de presse 1 et d'outil 2, sans que ces termes ne soient limitatifs.With reference to the figures, the handling device 10, 20 according to the invention allows the handling of a load, such as a tool 2, by linear displacement of the tool 2 in a transfer plane T by pushing and pulling. It is commonly called a rickshaw device. This handling device 10, 20 is more particularly designed to be integrated in a machine tool, such as a press 1. The use of the handling device of the invention in a press 1 for loading and unloading the tools 2, with reference to the figures, is however not limiting and extends to any other machine tool requiring the movement of a load, a tool, a metal mass, etc. To simplify the rest of the description, we will speak of press 1 and tool 2, without these terms being limiting.

D'une manière générale, la presse 1 comporte un bâti 4 pourvu de montants ou colonnes latérales 6, et une table de presse 5 située entre les colonnes latérales 6 en ménageant de part et d'autre de la table de presse un intervalle I libre traversant. Dans les figures annexées, la presse 1 n'est représentée que partiellement pour simplifier les dessins. La table de presse 5 est représentée avec uniquement une partie du bâti 4 et des colonnes 6 pour visualiser les deux intervalles I, délimités entre les bords latéraux parallèles de la table de presse 5 et les colonnes latérales 6. La table de presse 5 comporte deux bords transversaux, parallèles entre eux, définissant les côtés dits accessibles de la presse 1, qui sont perpendiculaires aux colonnes latérales 6 et permettent d'accéder à la table de presse 5 pour charger et décharger un outil 2. La table de presse 5 est plane et définit un plan de transfert T dans lequel est déplacé un outil 2 par un dispositif de manutention 10, 20, tel que celui de l'invention, entre une position d'attente à l'extérieur de la table de presse 5 et à proximité d'au moins un de ses côtés accessibles, et une position de travail sur la table de presse 5 et inversement. A cet effet, la presse 1 est équipée sur l'un et/ou l'autre de ses côtés accessibles d'une paire de consoles porte-outils 7 définissant la position d'attente dudit outil 2. Les consoles porte-outils 7 sont, dans les exemples illustrés, fixées au bâti 4 de la presse 1, et constituent des éléments mécaniques connus qui ne seront pas décrits plus en détail. Le plan défini par la paire de consoles porte-outils 7 est disposé dans le prolongement du plan défini par la table de presse 5 formant ensemble ledit plan de transfert T. L'outil 2 est quant à lui généralement supporté par une semelle 3 dont la surface est supérieure à celle de l'outil 2, qui sert à manutentionner l'outil 2 et à le fixer solidairement sur la table de presse 5.In general, the press 1 comprises a frame 4 provided with uprights or lateral columns 6, and a press table 5 situated between the lateral columns 6, providing a free interval I on either side of the press table crossing. In the appended figures, the press 1 is only partially shown to simplify the drawings. The press table 5 is shown with only part of the frame 4 and columns 6 for viewing the two intervals I, delimited between the parallel lateral edges of the press table 5 and the side columns 6. The press table 5 comprises two transverse edges, mutually parallel, defining the so-called accessible sides of the press 1, which are perpendicular to the lateral columns 6 and allow access to the press table 5 for loading and unloading a tool 2. The press table 5 is flat and defines a transfer plane T in which a tool 2 is moved by a handling device 10, 20, such as that of the invention, between a standby position outside and near the press table 5 at least one of its accessible sides, and a working position on the press table 5 and vice versa. To this end, the press 1 is equipped on one and / or the other of its accessible sides with a pair of tool holder consoles 7 defining the standby position of said tool 2. The tool holder consoles 7 are , in the examples illustrated, fixed to the frame 4 of the press 1, and constitute known mechanical elements which will not be described in more detail. The plane defined by the pair of tool holder consoles 7 is arranged in the extension of the plane defined by the press table 5 together forming said transfer plane T. The tool 2 is generally supported by a sole 3 whose surface is greater than that of tool 2, which is used to handle tool 2 and to fix it securely on the press table 5.

La presse 1 est par conséquent équipée d'un dispositif de manutention 10, 20 qui va permettre de déplacer l'outil 2 par poussée et traction dans le plan de transfert T entre une position d'attente et une position de travail. Ce dispositif de manutention 10, 20 est particulièrement adapté pour s'intégrer dans la presse 1, en première monte sur une presse neuve ou en seconde monte sur une presse déjà en service, de manière à ne condamner aucun des deux côtés accessibles de la tables de presse 5. Ainsi, l'opérateur peut intervenir plus facilement sur l'outil 2 pour régler sa position sur la table de presse 5 avant de l'y fixer solidairement. Le dispositif de manutention comporte à cet effet deux mécanismes de transfert 11, 12 spécialement conçus pour s'intégrer dans l'intervalle I existant entre la table de presse 5 et les colonnes latérales 6, permettant de monter très facilement le dispositif de manutention 10 à l'intérieur de la presse 1, de part et d'autre de la table de presse 5, ne nécessitant ainsi aucune modification de la table de presse 5. Ces deux mécanismes de transfert 11, 12 sont donc positionnés parallèlement l'un par rapport à l'autre et débordent sur les côtés accessibles de la table de presse 5, puisque leur longueur est supérieure à la profondeur de la table de presse 5 tout en restant à proximité de ses deux côtés accessibles.The press 1 is therefore equipped with a handling device 10, 20 which will make it possible to move the tool 2 by pushing and pulling in the transfer plane T between a waiting position and a working position. This handling device 10, 20 is particularly suitable for integration into the press 1, as an initial assembly on a new press or as a second assembly on a press already in service, so as to not condemn either of the two accessible sides of the tables press 5. Thus, the operator can more easily intervene on the tool 2 to adjust its position on the press table 5 before securing it therein. The handling device for this purpose comprises two transfer mechanisms 11, 12 specially designed to integrate in the interval I existing between the press table 5 and the lateral columns 6, making it possible to very easily mount the handling device 10 to the interior of the press 1, on either side of the press table 5, thus requiring no modification of the press table 5. These two transfer mechanisms 11, 12 are therefore positioned parallel to each other to the other and extend beyond the accessible sides of the press table 5, since their length is greater than the depth of the press table 5 while remaining close to its two accessible sides.

Ces deux mécanismes de transfert 11, 12 sont structurellement identiques. Ils comportent chacun un organe d'accrochage 40, 50 agencé pour coopérer avec un organe de réception 60, 70 complémentaire prévu sur l'outil 2, et des moyens d'entraînement 80 couplés audit organe d'accrochage 40, 50 pour le déplacer en translation dans le plan de transfert T sélectivement dans un sens et dans le sens inverse entre deux positions extrêmes recouvrant au moins la position d'attente et la position de travail dudit outil 2. Du fait de leur intégration dans la presse 1, les organes d'accrochage 40, 50 des deux mécanismes de transfert 11, 12 circulent latéralement à l'extérieur de la table de presse 5 entre deux positions extrêmes qui se situent à l'extérieur de la table de presse 5 tout en restant à proximité de ses deux côtés accessibles.These two transfer mechanisms 11, 12 are structurally identical. They each comprise a latching member 40, 50 arranged to cooperate with a complementary receiving member 60, 70 provided on the tool 2, and drive means 80 coupled to said latching member 40, 50 to move it in translation in the transfer plane T selectively in one direction and in the opposite direction between two extreme positions covering at least the standby position and the working position of said tool 2. Due to their integration in the press 1, the organs of 'hooking 40, 50 of the two transfer mechanisms 11, 12 circulate laterally outside the press table 5 between two extreme positions which are located outside the press table 5 while remaining close to its two accessible sides.

Les figures 1 à 5 illustrent un premier mode de réalisation du dispositif de manutention 10 selon l'invention monté sur une presse 1 équipée d'une paire de consoles porte-outils 7 sur un seul des côtés accessibles permettant de charger et de décharger un outil 2 par le même côté de la presse 1, comme représenté dans les figures 1A et 1B où l'outil 2 est en position d'attente dans la figure 1A et en position de travail dans la figure 1B. Chaque mécanisme de transfert 11, 12 comporte un rail de guidage 13 de largeur inférieure à la largeur de l'intervalle I dans lequel il est monté. Il renferme au moins en partie les moyens d'entraînement 80 et l'organe d'accrochage 40 est porté par un chariot mobile 41 couplé aux moyens d'entraînement 80 et guidé en translation dans le rail de guidage 13. Les moyens d'entraînement 80 comportent, dans chaque mécanisme de transfert 11, 12, une transmission mécanique agencée pour transformer le mouvement de rotation d'un actionneur rotatif en un mouvement de translation des organes d'accrochage 40. Ce mouvement de translation est alternatif dans un sens et dans le sens inverse pour déplacer les organes d'accrochage 40 d'une extrémité à l'autre extrémité des mécanismes de transfert 11, 12 pour définir leurs deux positions extrêmes. Les deux transmissions mécaniques sont couplées entre-elles pour garantir un déplacement synchrone desdits organes d'accrochage 40 parallèlement à eux-mêmes. Dans l'exemple représenté, chaque transmission mécanique comporte une chaîne de transmission 81 circulant en boucle entre un pignon menant 82 et un pignon mené 83, tous deux portés par des paliers prévus dans les extrémités des rails de guidage 13. Les pignons menants 83 des deux transmissions mécaniques sont couplés par un arbre de liaison 84, lequel est entraîné en rotation par un moteur 85 et une transmission 88, disposés à l'extérieur des rails de guidage 13. Le moteur 85 est un moteur réversible et peut être constitué de tout type de moteur, motoréducteur, servomoteur, ou similaire. Les chariots mobiles 41 des organes d'accrochage 40 sont solidarisés au brin supérieur de la chaîne de transmission 81 par des cavaliers 42 fixés en lieu et place d'un ou de plusieurs maillons de la chaîne de transmission 81 et sont guidés linéairement dans le rail de guidage 13 par l'intermédiaire d'un patin de guidage 86 circulant sur une glissière 87 solidaire du rail de guidage 13 (voir figure 4A). La glissière 87 a une section en forme de diabolo délimitant deux gorges de circulation tronconiques et opposées. Le patin de guidage 86 comporte des moyens de roulement tels que des rouleaux cylindriques (non représentés) agencés pour rouler dans lesdites gorges de circulation de la glissière 87. Bien entendu, tout autre type de transmission mécanique équivalente peut convenir. Les mécanismes de transfert 11, 12 comportent une équerre 14 à chacune de leurs extrémités permettant leur fixation au bâti 4 de la presse 1. Une des équerres 14 comporte une platine de support sur laquelle est fixé le moteur 85.The Figures 1 to 5 illustrate a first embodiment of the handling device 10 according to the invention mounted on a press 1 equipped with a pair of tool holder consoles 7 on only one of the accessible sides making it possible to load and unload a tool 2 by the same side of the press 1, as shown in the Figures 1A and 1B where tool 2 is in the waiting position in the figure 1A and in working position in the figure 1B . Each transfer mechanism 11, 12 comprises a guide rail 13 of width less than the width of the gap I in which it is mounted. It contains at least partially the drive means 80 and the hooking member 40 is carried by a mobile carriage 41 coupled to the drive means 80 and guided in translation in the guide rail 13. The drive means 80 comprise, in each transfer mechanism 11, 12, a mechanical transmission arranged to transform the rotational movement of a rotary actuator into a translational movement of the fastening members 40. This translational movement is alternating in one direction and in the opposite direction to move the hooking members 40 from one end to the other end of the transfer mechanisms 11, 12 to define their two extreme positions. The two mechanical transmissions are coupled together to guarantee a synchronous movement of said hooking members 40 parallel to themselves. In the example shown, each mechanical transmission comprises a transmission chain 81 circulating in a loop between a driving pinion 82 and a driven pinion 83, both carried by bearings provided in the ends of the guide rails 13. The driving pinions 83 of the two mechanical transmissions are coupled by a connecting shaft 84, which is rotated by a motor 85 and a transmission 88, arranged outside of the guide rails 13. The motor 85 is a reversible motor and can be made of any type of motor, gear motor, servomotor, or similar. The movable carriages 41 of the hooking members 40 are secured to the upper strand of the transmission chain 81 by jumpers 42 fixed in place of one or more links of the transmission chain 81 and are guided linearly in the rail. guide 13 by means of a guide shoe 86 circulating on a slide 87 integral with the guide rail 13 (see figure 4A ). The slide 87 has a diabolo-shaped section delimiting two frustoconical and opposite circulation grooves. The guide shoe 86 includes means of rolling such as cylindrical rollers (not shown) arranged to roll in said grooves of circulation of the slide 87. Of course, any other equivalent type of mechanical transmission may be suitable. The transfer mechanisms 11, 12 comprise a bracket 14 at each of their ends allowing their attachment to the frame 4 of the press 1. One of the brackets 14 comprises a support plate on which the motor 85 is fixed.

L'exemple qui vient d'être décrit n'est bien entendu pas restrictif. Les moyens d'entraînement des organes d'accrochage 40 peuvent comporter deux moteurs, un pour chaque mécanisme transfert 11, 12. Dans ce cas, les deux moteurs sont synchronisés par une unité de pilotage. Les chaînes de transmission 81 et les pignons menant 82 et mené 83 peuvent être remplacés par une courroie crantée et des roues crantées, ou par une vis sans fin et un écrou. Il est également possible d'envisager des vérins à double effet en lieu et place des transmissions mécaniques et du ou des moteurs 85. Ces exemples montrent quelques variantes de réalisation possibles sans sortir de l'invention.The example which has just been described is of course not restrictive. The drive means for the attachment members 40 may comprise two motors, one for each transfer mechanism 11, 12. In this case, the two motors are synchronized by a control unit. The transmission chains 81 and the driving sprockets 82 and driven 83 can be replaced by a toothed belt and toothed wheels, or by a worm and a nut. It is also possible to envisage double-acting cylinders in place of the mechanical transmissions and of the motor or motors 85. These examples show some possible embodiments without departing from the invention.

Les organes d'accrochage 40 comportent dans l'exemple des figures 1 à 3 un doigt d'entraînement 43 s'étendant dans le chariot mobile 41 selon un axe A perpendiculaire au plan de transfert T pour être saillant dans le plan de transfert T afin de pouvoir se loger dans un orifice 61 de la semelle 3 de l'outil 2 formant l'organe de réception 60 complémentaire. Ainsi, l'outil 2 est couplé au dispositif de manutention 10 et peut être déplacé en translation dans le plan de transfert T.The fastening members 40 include, in the example, Figures 1 to 3 a drive finger 43 extending in the movable carriage 41 along an axis A perpendicular to the transfer plane T to be projecting in the transfer plane T so as to be able to be housed in an orifice 61 in the sole 3 of the tool 2 forming the complementary receiving member 60. Thus, the tool 2 is coupled to the handling device 10 and can be moved in translation in the transfer plane T.

Dans cette variante, la semelle 3 de l'outil 2 comporte, dans chacun de ses deux bords latéraux et à proximité d'un de ses bords transversaux, au moins un orifice 61 traversant agencé pour recevoir le doigt d'entraînement 43 d'un des mécanismes de transfert 11, 12. Dans ce cas, la course de l'outil 2 est limitée à un aller-retour sur une même paire de consoles porte-outils 7. Bien entendu, la semelle 3 de l'outil 2 pourrait comporter un orifice 61 dans chacun de ses angles. Le fait de prévoir les orifices 61 directement dans la semelle 3 de l'outil 2, par exemple par usinage, est une solution de couplage simple à réaliser et très peu couteuse. Cette solution n'est toutefois possible que si la semelle 3 de l'outil 2 a une largeur supérieure à la largeur de la table de presse 5 et dépasse latéralement de la table de presse 5 pour se situer au-dessus des intervalles I existants entre la table de presse 5 et les colonnes latérales 6.In this variant, the sole 3 of the tool 2 comprises, in each of its two lateral edges and near one of its transverse edges, at least one through hole 61 arranged to receive the drive finger 43 of a transfer mechanisms 11, 12. In this case, the stroke of the tool 2 is limited to a round trip on the same pair of tool-holder consoles 7. Of course, the sole 3 of the tool 2 could include an orifice 61 in each of its angles. Providing for orifices 61 directly in the sole 3 of the tool 2, for example by machining, is a coupling solution which is simple to produce and very inexpensive. This solution is however only possible if the sole 3 of the tool 2 has a width greater than the width of the press table 5 and protrudes laterally from the press table 5 to be located above the existing intervals I between the press table 5 and the lateral columns 6.

Les doigts d'entraînement 43 forment par la même occasion des moyens d'indexage de l'outil 2 sur les consoles porte-outils 7 facilitant son positionnement sur la table de presse 5. Ces doigts d'entraînement 43 peuvent être montés fixes dans le chariot mobile 41. Ils sont toutefois montés mobiles en translation axiale selon l'axe A dans le chariot mobile 41 pour pouvoir s'escamoter automatiquement en phase de dépose de l'outil 2 lorsque celui-ci est mis en place sur les consoles porte-outils 7. A cet effet, les doigts d'entraînement 43 mobiles ne comportent aucune commande externe. Ils sont simplement assujettis par un organe de rappel 44 en position saillante dans le plan de transfert T lorsqu'ils sont au repos. Cet organe de rappel 44 est constitué d'un ressort hélicoïdal, ou tout organe de rappel similaire, disposé dans l'axe A entre le chariot mobile 41 et le doigt d'entraînement 43. La course axiale de chaque doigt d'entraînement 43 mobile en position saillante est limitée par exemple au moyen d'une vis de limite de course 45 ou de tout autre moyen équivalent. L'intérêt de ce montage élastique est de préserver les doigts d'entraînement 43 de tout dommage lors de la mise en place et de la dépose de l'outil 2 par un engin de manutention sur les consoles porte-outils 7 et par conséquent sur les doigts d'entraînement 43 des mécanismes de transfert 11, 12. Ainsi et dans l'hypothèse où l'outil 2 n'est pas correctement aligné sur les doigts d'entraînement 43 et qu'il entre en collision avec eux, les doigts d'entraînement 43 peuvent alors, sous l'effet d'une force d'appui exercée par l'outil 2, se rétracter automatiquement dans une position escamotée par rapport au plan de transfert T évitant toute détérioration ou casse.The drive fingers 43 form at the same time indexing means of the tool 2 on the tool holder consoles 7 facilitating its positioning on the press table 5. These drive fingers 43 can be mounted fixed in the mobile carriage 41. However, they are mounted movable in axial translation along axis A in the mobile carriage 41 so that they can retract automatically when the tool 2 is removed when the latter is placed on the consoles. tools 7. To this end, the movable drive fingers 43 have no external control. They are simply secured by a return member 44 in projecting position in the transfer plane T when they are at rest. This return member 44 consists of a helical spring, or any similar return member, disposed in the axis A between the mobile carriage 41 and the drive finger 43. The axial stroke of each mobile drive finger 43 in the projecting position is limited for example by means of a stroke limit screw 45 or any other equivalent means. The advantage of this elastic mounting is to preserve the drive fingers 43 from any damage during the installation and removal of the tool 2 by a handling machine on the tool holder consoles 7 and therefore on the drive fingers 43 of the transfer mechanisms 11, 12. Thus and in the event that the tool 2 is not correctly aligned on the drive fingers 43 and that it collides with them, the fingers drive 43 can then, under the effect of a pressing force exerted by the tool 2, automatically retract into a retracted position relative to the transfer plane T avoiding any deterioration or breakage.

Dans la variante de réalisation des figures 5 et 5A, les organes de réception 70 sont rapportés sur l'outil 2 et non plus intégrés comme dans l'exemple précédent. Ils comportent ainsi deux plaques 71 fixées sur la semelle 3 de l'outil 2 dans au moins deux de ses angles et du même côté transversal, chaque plaque 71 étant pourvue d'un orifice 72 traversant pour recevoir un doigt d'entraînement 42 du dispositif de manutention 10. Comme dans l'exemple précédent, la course de l'outil 2 est limitée à un aller-retour sur une même paire de consoles porte-outils 7. Bien entendu, la semelle 3 de l'outil 2 pourrait comporter une plaque 71 dans chacun de ses angles. Cette solution de couplage est également très simple et peu couteuse, permettant d'équiper des outils 2 ayant une semelle 3 dont la largeur correspond sensiblement à la largeur de la table de presse 5 et ne permet pas d'usiner directement les orifices 61 dans ses bords latéraux, comme dans l'exemple décrit précédemment.In the variant of the Figures 5 and 5A , the receiving members 70 are attached to the tool 2 and no longer integrated as in the previous example. They thus comprise two plates 71 fixed to the sole 3 of the tool 2 in at least two of its angles and on the same transverse side, each plate 71 being provided with a through hole 72 for receiving a drive finger 42 of the device handling 10. As in the previous example, the stroke of the tool 2 is limited to a round trip on the same pair of tool-holder consoles 7. Of course, the sole 3 of the tool 2 could include a plate 71 in each of its angles. This coupling solution is also very simple and inexpensive, making it possible to equip tools 2 having a sole 3 whose width corresponds substantially to the width of the press table 5 and does not allow the holes 61 to be machined directly in its side edges, as in the example described above.

Les figures 6 à 10 illustrent un second mode de réalisation du dispositif de manutention 20 selon l'invention monté sur une presse 1 équipée dans cette version de deux paires de consoles porte-outils 7 sur ses deux côtés accessibles permettant de charger un outil 2 par un des côtés et de décharger l'outil 2 par l'autre côté de la presse 1. Cette solution est particulièrement avantageuse car elle permet de travailler en temps masqué, c'est-à-dire de charger un outil 2 en position d'attente sur une paire de consoles porte-outils 7 pendant qu'un autre outil 2 est en position de travail sur la table de presse 5, comme expliqué en référence aux figures 10A à 10D. Les pièces, parties de pièce et sous-ensembles qui sont identiques à l'exemple précédent portent les mêmes numéros de référence.The figures 6 to 10 illustrate a second embodiment of the handling device 20 according to the invention mounted on a press 1 equipped in this version with two pairs of tool holder consoles 7 on its two accessible sides making it possible to load a tool 2 from one of the sides and unload the tool 2 from the other side of the press 1. This solution is particularly advantageous because it makes it possible to work in hidden time, that is to say to load a tool 2 in the waiting position on a pair of tool holder consoles 7 while another tool 2 is in the working position on the press table 5, as explained with reference to Figures 10A to 10D . Parts, parts of parts and subassemblies which are identical to the previous example have the same reference numbers.

Les mécanismes de transfert 11, 12 du dispositif de manutention 20 sont identiques à l'exemple précédent. Les organes d'accrochage 50 sont comme dans l'exemple précédent portés chacun par un chariot mobile 51, fixé au brin supérieur de la chaîne de transmission 81 par des cavaliers 52 fixés en lieu et place d'un ou de plusieurs maillons de la chaîne de transmission 81. Ils se différencient de l'exemple précédent en ce qu'ils comportent chacun un doigt d'entraînement 53 monté pivotant dans le chariot mobile 51 selon un axe B. Cet axe de pivotement B est parallèle au rail de guidage 13. Chaque doigt d'entraînement 53 est assujetti par un système de commande entre une position déverrouillée inclinée telle que représentée dans les figures 6 et 9, dans laquelle il n'est pas en prise avec l'organe de réception 70 de l'outil 2 et une position verrouillée verticale, dans laquelle il est en prise avec l'organe de réception 70 de l'outil 2 permettant de déplacer l'organe d'accrochage 50 par rapport à l'outil 2. Ce système de commande comporte, dans l'exemple représenté, un organe de rappel 54 agencé pour rappeler le doigt d'entraînement 53 de la position déverrouillée à la position verrouillée et une poignée de déverrouillage 55 agencée pour déplacer le doigt d'entrainement 53 de sa position verrouillée à une position déverrouillée. Le doigt d'entraînement 53 est monté sur un levier 56 par une pièce de fixation 57 et l'organe de rappel 54 s'étend entre le levier 56 et le chariot mobile 51. La poignée de déverrouillage 55 est disposée à une des extrémités de chaque mécanisme de transfert 11, 12 et solidaire du levier 56 par un arbre cannelé 58 qui s'étend tout le long et parallèlement au rail de guidage 13. Cette poignée de déverrouillage 55 est maintenue en position déverrouillée par un doigt d'indexage 59 orienté perpendiculairement au plan de pivotement de la poignée de déverrouillage 55, et monté dans un étrier 15 fixé au rail de guidage 13 (figure 6A). Ce doigt d'indexage 59 est assujetti par un organe de rappel (non visible) en direction de la poignée de déverrouillage 55 qui comporte un trou d'indexage (non visible) pour recevoir le doigt d'indexage 59 lorsqu'elle est en position déverrouillée. La poignée de déverrouillage 55 et le doigt d'indexage 59 de chaque mécanisme de transfert 11, 12 sont destinés à être manipulés par un opérateur de la presse. Lorsque l'opérateur souhaite déplacer les organes d'accrochage 50 par rapport à un outil 2, il déverrouille les organes d'accrochage 50 en prise avec les organes de réception 70 de l'outil 2 en tirant sur le doigt d'indexage 59 pour pouvoir abaisser la poignée de déverrouillage 55 vers le bas en position déverrouillée (voir flèche F sur la figure 6A) qu'il bloque en relâchant la traction sur le doigt d'indexage 59 pour que ce dernier se loge dans le trou d'indexage correspondant prévu sur la poignée de déverrouillage 55. Il peut ensuite commander le moteur 85 pour déplacer les organes d'accrochage 50 librement sans emporter l'outil 2. Lorsqu'il veut à nouveau coupler les mécanismes de transfert 11, 12 à l'outil 2 pour le déplacer, il tire sur chaque doigt d'indexage 59 pour libérer la poignée de déverrouillage 55 laquelle remonte sous l'action de l'organe de rappel 54 rappelant le doigt d'entraînement 53 en position verrouillée dans un des organes de réception 70 prévus sur l'outil 2.The transfer mechanisms 11, 12 of the handling device 20 are identical to the previous example. The hooking members 50 are, as in the previous example, each carried by a mobile carriage 51, fixed to the upper strand of the transmission chain 81 by jumpers 52 fixed in place of one or more links of the chain 81. They differ from the previous example in that they each comprise a drive finger 53 pivotally mounted in the mobile carriage 51 along an axis B. This pivot axis B is parallel to the guide rail 13. Each drive finger 53 is secured by a control system between an unlocked inclined position as shown in the figures 6 and 9 , in which it is not engaged with the receiving member 70 of the tool 2 and a vertical locked position, in which it is engaged with the receiving member 70 of the tool 2 making it possible to move the 'hooking member 50 relative to the tool 2. This control system comprises, in the example shown, a return member 54 arranged to return the drive finger 53 from the unlocked position to the locked position and a unlocking handle 55 arranged to move the drive finger 53 from its locked position to an unlocked position. The drive finger 53 is mounted on a lever 56 by a fixing piece 57 and the return member 54 extends between the lever 56 and the movable carriage 51. The unlocking handle 55 is arranged at one of the ends of each transfer mechanism 11, 12 and secured to the lever 56 by a splined shaft 58 which extends all along and parallel to the guide rail 13. This unlocking handle 55 is held in the unlocked position by an indexing finger 59 oriented perpendicular to the pivot plane of the release handle 55, and mounted in a stirrup 15 fixed to the guide rail 13 ( figure 6A ). This indexing finger 59 is secured by a return member (not visible) in the direction of the unlocking handle 55 which has an indexing hole (not visible) for receiving the indexing finger 59 when it is in position unlocked. The unlocking handle 55 and the indexing finger 59 of each transfer mechanism 11, 12 are intended to be handled by a press operator. When the operator wishes to move the latching members 50 relative to a tool 2, he unlocks the latching members 50 in engagement with the receiving members 70 of the tool 2 by pulling on the indexing finger 59 to ability to lower the release handle 55 down to the unlocked position (see arrow F on the figure 6A ) that it blocks by releasing the traction on the indexing finger 59 so that the latter is housed in the corresponding indexing hole provided on the unlocking handle 55. It can then control the motor 85 to move the members of hanging 50 freely without carrying the tool 2. When it again wants to couple the transfer mechanisms 11, 12 to the tool 2 to move it, it pulls on each indexing finger 59 to release the unlocking handle 55 which goes back under the action of the return member 54 recalling the drive finger 53 in the locked position in one of the receiving members 70 provided on the tool 2.

Dans cette variante de réalisation, les organes de réception 70 sont rapportés sur l'outil 2 et comportent quatre plaques 71 fixées sur la semelle 3 de l'outil 2 dans ses quatre angles, chaque plaque 71 étant pourvue d'un orifice 73 ouvert latéralement pour recevoir un doigt d'entraînement 53 lorsqu'il passe d'une position déverrouillée à une position verrouillée. Dans ce cas, la course de l'outil 2 est étendue à une traversée de la table de presse 5 d'une paire de consoles porte-outils 7 à la paire de consoles porte-outils 7 opposée, et est limitée à cette traversée, ce qui représente une course réduite par rapport à l'état de l'art. Là encore, cette solution de couplage est également très simple et peu couteuse, permettant d'équiper des outils 2 ayant une semelle 3 dont la largeur est sensiblement égale à la largeur de la table de presse 5 et ne permet pas d'usiner directement des orifices ouverts latéralement dans ses bords latéraux. Toutefois, pour les autres outils 2 ayant une semelle 3 dont la largeur est supérieure à la largeur de la table de presse 5, ces orifices ouverts latéralement pourraient être usinés directement dans ses bords latéraux.In this alternative embodiment, the receiving members 70 are attached to the tool 2 and comprise four plates 71 fixed on the sole 3 of the tool 2 in its four angles, each plate 71 being provided with an orifice 73 open laterally to receive a drive finger 53 when it passes from an unlocked position to a locked position. In this case, the stroke of the tool 2 is extended to a crossing of the press table 5 from a pair of tool holder consoles 7 to the pair of opposite tool holder consoles 7, and is limited to this crossing, which represents a reduced stroke compared to the state of the art. Again, this coupling solution is also very simple and inexpensive, making it possible to equip tools 2 having a sole 3 whose width is substantially equal to the width of the press table 5 and does not allow machining directly openings laterally open in its lateral edges. However, for the other tools 2 having a sole 3 whose width is greater than the width of the press table 5, these orifices open laterally could be machined directly in its lateral edges.

Possibilités d'application industrielle :Industrial application possibilities:

Lorsque la presse 1 est équipée d'une seule paire de consoles porte-outils 7 comme illustré dans les figures 1 à 5, le dispositif de manutention 10 permet de charger et décharger les outils 2 d'un seul et même côté accessible de la table de presse 5, à savoir le côté où se situe les consoles porte-outils 7. Lorsque la presse 1 est équipée de deux paires de consoles porte-outils 7 comme illustré dans les figures 6 à 10, le dispositif de manutention 20 permet de charger et décharger les outils de presse 2 des deux côtés accessibles de la table de presse 5, puisqu'ils sont équipés chacun de consoles porte-outils 7, permettant ainsi de travailler en temps masqué, comme expliqué ci-après, donc de gagner un temps considérable dans les opérations de changement d'outils.When the press 1 is equipped with a single pair of tool holder consoles 7 as illustrated in the Figures 1 to 5 , the handling device 10 makes it possible to load and unload the tools 2 from a single accessible side of the press table 5, namely the side where the tool holder consoles are located. When the press 1 is equipped with two pairs of tool consoles 7 as illustrated in the figures 6 to 10 , the handling device 20 makes it possible to load and unload the press tools 2 from the two accessible sides of the press table 5, since they are each equipped with tool holder consoles 7, thus making it possible to work in hidden time, as explained below, therefore saving considerable time in tool change operations.

Les figures 10A à 10D illustrent un procédé de manutention des outils de presse 2 sur une presse 1, équipée d'une paire de consoles porte-outils 7 sur chacun de ses côtés, et du dispositif de manutention 20 selon l'invention, qui permet de travailler en temps masqué comme expliqué ci-après. Dans ce cas, les outils 2 sont équipés de quatre organes de réception 70 soit un organe de réception 70 dans chaque angle de la semelle 3. La figure 10A illustre un premier outil 2 qui a été déposé par tout moyen de manutention connu en position d'attente sur les consoles porte-outils 7 du côté avant AV de la presse 1. On appelle le côté avant AV de la presse 1, son côté droit sur les figures, et le côté arrière AR de la presse 1, son côté gauche sur les figures 10A à 10D. Les moyens d'accrochage 50 des mécanismes de transfert 11, 12 sont positionnés du côté avant AV de la presse 1 et en position verrouillée dans les moyens de réception 70 du premier outil 2 qui sont à proximité de la table de presse 5. Pour charger le premier outil 2 en position de travail, conformément à la figure 10B, le dispositif de manutention 20 est actionné afin de déplacer les organes d'accrochage 50 du côté avant AV vers le côté arrière AR de la presse 1, et par conséquent le premier outil 2 des consoles porte-outils 7 à la table de presse 5. La presse 1 peut démarrer rapidement pour travailler avec le premier outil 2 après avoir procédé à sa fixation sur la table de presse 5.The Figures 10A to 10D illustrate a process for handling press tools 2 on a press 1, equipped with a pair of tool holder consoles 7 on each of its sides, and the handling device 20 according to the invention, which makes it possible to work in masked time as explained below. In this case, the tools 2 are equipped with four receiving members 70, ie a receiving member 70 in each corner of the sole 3. The figure 10A illustrates a first tool 2 which has been deposited by any known handling means in the standby position on the tool holder consoles 7 on the front side AV of the press 1. The front side AV of the press 1 is called its right side in the figures, and the rear rear side of the press 1, its left side on the Figures 10A to 10D . The attachment means 50 of the transfer mechanisms 11, 12 are positioned on the front side AV of the press 1 and in the locked position in the reception means 70 of the first tool 2 which are near the press table 5. To load the first tool 2 in the working position, in accordance with the figure 10B , the handling device 20 is actuated in order to move the hooking members 50 from the front side AV towards the rear side AR of the press 1, and consequently the first tool 2 of the tool holder consoles 7 at the press table 5 The press 1 can start quickly to work with the first tool 2 after having fixed it on the press table 5.

Dans la figure 10C, un deuxième outil 2 est déposé, par tout moyen de manutention connu, sur les consoles porte-outils 7 du côté avant AV de la presse 1 pendant que la presse 1 travaille avec le premier outil 2. Pendant ce temps, l'opérateur peut déverrouiller les organes d'accrochage 50 du premier outil 2 en tirant sur le doigt d'indexage 59 et en pivotant la poignée de déverrouillage 55 vers le bas de chaque mécanisme de transfert 11, 12 pour libérer les moyens de réception 70 du premier outil 2. Il actionne le dispositif de manutention 20 afin de déplacer les organes d'accrochage 50 du côté arrière AR vers le côté avant AV de la presse 1 pour les amener en regard des organes de réception 70 du second outil 2, qui sont à proximité de la table de presse 5. Il tire ensuite sur le doigt d'indexage 59 de chaque mécanisme de transfert 11, 12 pour libérer la poignée de déverrouillage 55 qui permet le retour automatique de l'organe d'accrochage 50 en position verrouillée sous l'action de son organe de rappel 54. Le dispositif de manutention 20 est couplé cette fois-ci au deuxième outil 2 en attente. Dès que la presse 1 a terminé de travailler avec le premier outil 2, le deuxième outil 2 peut être chargé sans perte de temps, comme le montre la figure 10D, après avoir retiré les fixations liant le premier outil 2 à la table de presse 5. Le dispositif de manutention 20 est actionné afin de déplacer les organes d'accrochage 50 du côté avant AV vers le côté arrière AR de la presse 1, et par conséquent le deuxième outil 2 des consoles porte-outils 7 à la table de presse 5, en poussant simultanément le premier outil 2 pour le déplacer de la table de presse 5 aux consoles porte-outils 7 du côté arrière AR de la presse 1. La presse 1 peut redémarrée rapidement pour travailler avec le deuxième outil 2 après avoir procédé à sa fixation sur la table de presse 5. Pendant ce temps, le premier outil 2 en position d'attente sur les consoles porte-outils du côté arrière AR de la presse 1 peut être retiré par tout moyen de manutention connu, et un troisième outil 2 (non représenté) peut être déposé sur les consoles porte-outils 7 du côté avant AV de la presse 1.In the figure 10C , a second tool 2 is deposited, by any known handling means, on the tool holder consoles 7 on the front side AV of the press 1 while the press 1 is working with the first tool 2. During this time, the operator can unlock the hooking members 50 of the first tool 2 by pulling on the indexing finger 59 and pivoting the unlocking handle 55 downwards of each transfer mechanism 11, 12 to release the receiving means 70 of the first tool 2 It actuates the handling device 20 in order to move the organs hooking 50 from the rear side AR towards the front side AV of the press 1 to bring them opposite the receiving members 70 of the second tool 2, which are close to the press table 5. He then pulls on the finger d indexing 59 of each transfer mechanism 11, 12 to release the unlocking handle 55 which allows the automatic return of the latching member 50 in the locked position under the action of its return member 54. The handling device 20 is coupled this time to the second tool 2 on standby. As soon as the press 1 has finished working with the first tool 2, the second tool 2 can be loaded without loss of time, as shown in the figure 10D , after having removed the fixings linking the first tool 2 to the press table 5. The handling device 20 is actuated in order to move the hooking members 50 from the front side AV towards the rear side AR of the press 1, and by Consequently, the second tool 2 from the tool holder consoles 7 to the press table 5, by simultaneously pushing the first tool 2 to move it from the press table 5 to the tool consoles 7 on the rear side AR of the press 1. The press 1 can be restarted quickly to work with the second tool 2 after having fixed it on the press table 5. During this time, the first tool 2 in the standby position on the tool holder consoles on the rear side AR of the press 1 can be removed by any known handling means, and a third tool 2 (not shown) can be placed on the tool holder consoles 7 on the front side AV of press 1.

Dans le procédé qui vient d'être décrit, le dispositif de manutention 20 transfère simultanément les deux outils 2, le premier outil 2 de l'ancienne production et le deuxième outil 2 de la nouvelle production. Pour des raisons de taille des gros outils 2 et d'inertie, le transfert de ces deux outils 2 pourra se faire en deux séquences :

  • 1ère séquence : translation du premier outil 2,
  • 2ème séquence : translation du deuxième outil 2.
Le temps de changement d'outil n'en sera que légèrement affecté.In the process which has just been described, the handling device 20 simultaneously transfers the two tools 2, the first tool 2 from the old production and the second tool 2 from the new production. For reasons of size of the large tools 2 and of inertia, the transfer of these two tools 2 can be done in two sequences:
  • 1 st sequence: translation of the first tool 2,
  • 2nd sequence: translation of the second tool 2.
The tool change time will only be slightly affected.

Il ressort clairement de cette description que l'invention permet d'atteindre les buts fixés, à savoir un dispositif de manutention 10, 20 simple, économique, polyvalent, très peu encombrant, pouvant s'intégrer très facilement et à moindre coût dans une presse sans pénaliser son fonctionnement, ni ses accès sur ses deux côtés, permettant une réduction au minimum de la course des outils, et offrant une possibilité de charger et décharger un outil en temps masqué.It is clear from this description that the invention achieves the goals set, namely a handling device 10, 20 simple, economical, versatile, very space-saving, being able to integrate very easily and inexpensively in a press without penalizing its operation, nor its accesses on its two sides, allowing a reduction in the stroke of the tools, and offering a possibility of loading and unloading a tool in hidden time.

Claims (22)

  1. Method of handling a load, especially a tool (2) on a press, said press (1) comprising a frame (4) provided with lateral columns (6), and a press table (5) located between said lateral columns (6) with a free gap (I) passing through on either side of the press table (5), said press table (5) defining a transfer plane (T) and being arranged to receive said tool (2) in a working position, said press (1) being equipped with a handling device (10, 20) arranged for moving the said tool (2) by pushing and pulling in the said transfer plane (T) between a standby position and a working position, this handling device comprising two transfer mechanisms (11, 12) each provided with attaching devices (40, 50) designed to cooperate with complementary receiving devices (60, 70) provided on the said tool (2), and drive means (80) coupled to the said attaching devices (40, 50) for moving them in translation in said transfer plane (T) selectively in one direction and in the opposite direction between two extreme positions covering at least both the standby position and the working position of said tool (2), said drive means (80) of the two transfer mechanisms (11, 12) being coupled to operate synchronously, which method is characterized in that one installs the two transfer mechanisms (11, 12) of said handling device (10, 20) inside the press (1) on either side of the press table (5), parallel to one another, in the free through gap (I) existing between the press table (5) and the lateral columns (6), so that the attaching devices (40, 50) circulate laterally outside the press table (5), the two transfer mechanisms (11, 12) having a length greater than the depth of the press table (5) so that the two end positions of said attaching devices (40, 50) are located outside the press table (5) and close to its two accessible sides.
  2. Handling method according to claim 1, characterized in that one equips one of the sides of the press table (5) with a pair of tool holder consoles (7) and in that one controls said handling device (10) to move a tool (2) from a standby position on the pair of tool holder consoles (7) to a working position on the press table (5, 5') and vice versa.
  3. Handling method according to claim 1, characterized in that one equips both sides of the press table (5) with a pair of tool consoles (7) and in that said one controls handling device (20) to move a tool (2) from a standby position on one of the pairs of tool holder consoles (7) to a working position on the press table (5), then from the working position on the press table (5) to a standby position on the other pair of tool holder consoles (7), and vice versa.
  4. Press (1) comprising a frame (4) provided with lateral columns (6), and a press table (5) located between said lateral columns (6), leaving a free through gap (I) on either side of the press table, said press table (5) defining a transfer plane (T) and being arranged to receive a load, in particular a tool (2) in a working position, said press comprising a handling device (10, 20) arranged to move said tool (2) by pushing and pulling in said transfer plane (T) between a standby position and a working position, this handling device comprising two transfer mechanisms (11), 12) each provided with attaching devices (40, 50) intended to cooperate with complementary receiving devices (60, 70) provided on the said tool (2), and drive means (80) coupled to the said attaching devices (40, 50) for translating them in said transfer plane (T) selectively in one direction and in the opposite direction between two extreme positions covering both the standby position and the working position of said tool (2), said drive means (80) of the two transfer mechanisms (11, 12) being coupled to operate synchronously, characterized in that the two transfer mechanisms (11, 12) of said handling device are mounted inside the press (1) on both sides of the press table (5), parallel to each other, in the free through gap (I) existing between the press table (5) and the side columns (6), so that the attaching devices (40, 50) circulate laterally outside the press table (5), and in that the two transfer mechanisms (11, 12) have a length greater than the depth of the press table (5) so that the two end positions of said attaching devices (40, 50) are located outside the press table (5) and close to its two accessible sides.
  5. Press according to claim 4, characterized in that the attaching device (40) of each transfer mechanism (11, 12) comprises a drive pin (43) movable along an axis (A) perpendicular to said transfer plane (T), projecting in said transfer plane (T) and intended to be housed in an hole (61) of a base plate (3) of said tool (2) forming said additional receiving device (60).
  6. Press according to claim 4, characterized in that the attaching device (50) of each transfer mechanism (11, 12) comprises a drive pin (53) pivoting between an unlocked position in which it is not engaged with the receiving device (70) of said tool (2) and a locked position in which it is engaged with the receiving device (70) of said tool (2), and in that said receiving devices (70) each comprise a laterally open hole (73) provided in a base plate (3) of said tool (2) and arranged to receive the drive pin (53) of one of the transfer mechanisms (11, 12) when it is in the locked position.
  7. Handling device (10, 20) for handling a load, in particular a tool (2), intended to be installed on a press (1) comprising a press table (5) receiving the tool in a working position, and arrangement for moving the said tool (2) by pushing and pulling in a transfer plane (T) between a standby position and a working position, this handling device comprising two transfer mechanisms (11, 12) each provided with attaching devices (40, 50) intended to cooperate with complementary receiving devices (60, 70) provided on said tool (2), and drive means (80) coupled to said attaching devices (40, 50) for moving them in translation in said transfer plane (T) selectively in one direction and in the opposite direction between at least two extreme positions covering the standby position and the working position of said tool (2), said drive means (80) of the two transfer mechanisms (11, 12) being coupled together to operate in a synchronous manner, said handling device (10, 20) being arranged for equipping a press (1) according to any one of claims 4 to 6 for carrying out the handling method according to any one of claims 1 to 3, in that the two transfer mechanisms (11, 12) are dimensioned to be mounted inside the press (1), on either side of the press table (5), parallel to each other, that the two transfer mechanisms (11, 12) have a length greater than the depth of the press table (5) so that the two extreme positions of said attaching devices (40, 50) are located outside the press table (5) and close to its two accessible sides when said handling device (10, 20) is mounted on said press (1), characterized in that that each transfer mechanism (11, 12) comprises a guide rail (13), and in that said attaching device (40, 50) is carried by a mobile carriage (41, 51) coupled to said drive means (80) and guided in translation in said guide rail (13) between said extreme positions in order to move said attaching devices (40, 50) from one end to the other end of said transfer mechanisms (11, 12).
  8. Handling device according to claim 7, characterized in that the drive means (80) of each transfer mechanism (11, 12) comprise a mechanical transmission coupled on the one hand to said movable carriage (41, 51) and on the other hand to a rotary actuator (85), said mechanical transmission being arranged to transform the rotary movement of said rotary actuator (85) into a translational movement of said movable carriage (41, 51).
  9. Handling device according to claim 8, characterized in that said drive means (80) comprise an actuator (85) common to both transfer mechanisms (11, 12), and in that the mechanical transmissions of the two transfer mechanisms (11, 12) are connected to each other by a connecting shaft (84).
  10. Handling device according to claim 8, characterized in that said drive means comprise two actuators, each coupling to a mechanical transmission of one of the transfer mechanisms, and in that said actuators are enslaved to each other to operate synchronously.
  11. Handling device according to claim 7, characterized in that the attaching device (40) of each transfer mechanism (11, 12) comprises a drive pin (43) extending in said mobile carriage (41) along an axis (A) perpendicular to said transfer plane (T), projecting in said transfer plane (T) and intended to be housed in an hole (61, 72) of a base plate (3) of said tool (2) forming said complementary receiving device (60, 70).
  12. Handling device according to the claim 11, characterized in that it comprises at least two specific receiving devices (70), separate from said transfer mechanisms (11, 12), each provided with an hole (71) for receiving a drive pin (43), and intended to be attached to the base plate (3) of said tool (2).
  13. Handling device according to claim 11, characterized in that said drive pin (43) is mounted movable in axial translation in said movable carriage (41) and secured by a return device (44) in its projecting position in the transfer plane (T) when it is at rest, and allowing its retraction into a retracted position with respect to said transfer plane (T) when it is constrained by an external support opposing said return device (44).
  14. Handling device according to the claim 7, characterized in that the attaching device (50) of each transfer mechanism (11, 12) comprises a drive pin (53) pivotally mounted in said mobile carriage (51) about a pivot axis (B), secured by a control system between an unlocked position in which it is not engaged with the receiving device (70) of said tool (2) and a locked position in which it is in engagement with the receiving device (70) of said tool (2).
  15. Handling device according to the claim 14, characterized in that the control system comprises a return device (54) arranged to automatically return said drive pin (53) from the unlocked position to the locked position and an unlocking handle (55) arranged to move said drive pin (53) from its locked position to an unlocked position.
  16. Handling device according to the claim 15, characterized in that the drive pin (53) is mounted on a lever (56) integral with said unlocking handle (55), and in that said return device (54) extends between said lever (56) and the movable carriage (51).
  17. Handling device according to claim 16, characterized in that the control system further comprises an indexing pin (59) arranged to block said unlocking handle (55) in the unlocked position.
  18. Press tool (2) comprising a base plate (3) provided with two parallel lateral edges and two parallel transverse edges, characterized in that it comprises receiving devices (60, 70) integrated in each of its two lateral edges and in the vicinity of one of its transverse edges or attached in at least two of its corners and on the same transverse side, said receiving means being complementary to attaching devices (40, 50) provided on a handling device (10, 20) according to any of claims 7 to 17 arrangement for placing said tool (2) by pushing and pulling in a transfer plane (T) between a standby position and a working position in a press (1) according to any of claims 4 to 6, characterized in that the receiving devices are formed of a through-hole or laterally open hole.
  19. Tool according to claim 18, characterized in that said base plate (3) has in each of its two lateral edges at least one through hole (61) arranged to receive the drive pin (43) of one of the transfer mechanisms (11, 12) of said handling device (10, 20).
  20. Tool according to claim 18, characterized in that said receiving devices (70) are mounted on the lateral edges of the base plate (3) of said tool (2) and each comprise a plate (71) provided with a through hole (72) arranged to receive the drive pin (43) of one of the transfer mechanisms (11, 12) of said handling device (10, 20).
  21. Tool according to claim 18, characterized in that said base plate (3) has, in each of its two lateral edges, two holes (73) open laterally, in the end zones of said lateral edge, and arranged to selectively receive the drive pin (53) of one of the transfer mechanisms (11, 12) of said handling device (10, 20).
  22. Tool according to claim 18, characterized in that the said receiving devices (70) are mounted on the lateral edges of the base plate (3) of said tool (2) and comprise two plates (71) provided with a laterally open hole (73) in the end zones of each lateral edge, and arranged to selectively receive the drive pin (53) of one of the transfer mechanisms (11, 12) of said handling device (10, 20).
EP17197951.1A 2016-10-24 2017-10-24 Method for handling a load, in particular a press tool, corresponding handling device and press provided with such a device Active EP3318397B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17197951T PL3318397T3 (en) 2016-10-24 2017-10-24 Method for handling a load, in particular a press tool, corresponding handling device and press provided with such a device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1660304A FR3057800B1 (en) 2016-10-24 2016-10-24 DEVICE FOR HANDLING A LOAD, IN PARTICULAR A PRESS TOOL, PRESS EQUIPPED WITH SUCH A DEVICE AND CORRESPONDING HANDLING PROCEDURE

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EP3318397A1 EP3318397A1 (en) 2018-05-09
EP3318397B1 true EP3318397B1 (en) 2020-03-18

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EP17197951.1A Active EP3318397B1 (en) 2016-10-24 2017-10-24 Method for handling a load, in particular a press tool, corresponding handling device and press provided with such a device

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US3841141A (en) 1973-07-09 1974-10-15 S Rachwal Die changing apparatus
DE2343682C2 (en) * 1973-08-30 1975-04-30 L. Schuler Gmbh, 7320 Goeppingen Tool changing device on a press
JPS5853334B2 (en) 1975-07-25 1983-11-29 株式会社リコー Atsuriyokuro-Rateichiyakouchi
DE2738081C2 (en) * 1977-08-24 1985-09-12 L. Schuler GmbH, 7320 Göppingen Tool changing device on a press
DE3433566C2 (en) * 1983-12-23 1986-10-23 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Press training for the automatic change of heavy tools, in which the tool is pulled out of the press onto a tool change carriage or pushed into the press by this
US4614108A (en) 1985-04-12 1986-09-30 Tek-Matik, Inc. Die cart
DE3533768A1 (en) * 1985-09-21 1987-04-02 Schuler Gmbh L Device for moving the clamping plate of a press
US4635465A (en) 1985-10-31 1987-01-13 Karder Machine Co. Die pulling apparatus
FR2665113B1 (en) 1990-07-25 1995-06-02 Peugeot ARRANGEMENT FOR THE QUICK CHANGE OF A PRESS TOOL.
JP4567174B2 (en) * 2000-11-16 2010-10-20 本田技研工業株式会社 Mold changer for press machine
US7204793B2 (en) * 2005-03-17 2007-04-17 Hedin Lagan Ab Device for moving die tools and moulds in a press
FR2966070B1 (en) 2010-10-18 2012-11-23 Rotobloc Psp DEVICE FOR HANDLING A LOAD IN PARTICULAR OF A PRESS TOOL
DE202015101311U1 (en) * 2015-03-13 2015-06-03 Dreistern Gmbh & Co. Kg Processing station for processing endless metal profiles

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PL3318397T3 (en) 2020-11-02
FR3057800A1 (en) 2018-04-27
FR3057800B1 (en) 2020-11-06
EP3318397A1 (en) 2018-05-09

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