EP3106241B1 - Machine-outil et procédé destinés a l'évacuation de parties d'une pièce à usiner - Google Patents

Machine-outil et procédé destinés a l'évacuation de parties d'une pièce à usiner Download PDF

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Publication number
EP3106241B1
EP3106241B1 EP15172873.0A EP15172873A EP3106241B1 EP 3106241 B1 EP3106241 B1 EP 3106241B1 EP 15172873 A EP15172873 A EP 15172873A EP 3106241 B1 EP3106241 B1 EP 3106241B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
parts
receiving device
machine tool
gap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15172873.0A
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German (de)
English (en)
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EP3106241A1 (fr
Inventor
Dennis Tränklein
Frank Schmauder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trumpf Werkzeugmaschinen SE and Co KG
Original Assignee
Trumpf Werkzeugmaschinen SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trumpf Werkzeugmaschinen SE and Co KG filed Critical Trumpf Werkzeugmaschinen SE and Co KG
Priority to EP15172873.0A priority Critical patent/EP3106241B1/fr
Priority to EP17185041.5A priority patent/EP3269468A1/fr
Priority to PL15172873T priority patent/PL3106241T3/pl
Priority to JP2016120121A priority patent/JP6556098B2/ja
Priority to CN201610824397.5A priority patent/CN106391904B/zh
Priority to US15/186,902 priority patent/US10625330B2/en
Publication of EP3106241A1 publication Critical patent/EP3106241A1/fr
Application granted granted Critical
Publication of EP3106241B1 publication Critical patent/EP3106241B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B21D28/265—Perforating, i.e. punching holes in sheets or flat parts with relative movement of sheet and tools enabling the punching of holes in predetermined locations of the sheet, e.g. holes punching with template
    • 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/02—Ejecting devices
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/20—Storage arrangements; Piling or unpiling
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/28—Associations of cutting devices therewith
    • B21D43/282—Discharging crop ends or the like
    • 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools

Definitions

  • the present invention relates to a machine tool for punching and / or forming a plate-like workpiece according to the preamble of claim 1, in particular a sheet, and a method for discharging workpiece parts from such a machine tool.
  • a machine tool in the form of a press for machining workpieces, in particular sheets, is in the generic form EP 2 527 058 A1 described.
  • the machine tool described there has a lifting drive device by means of which a press tool can be moved along a lifting axis.
  • the lifting drive device can in turn be positioned along a positioning axis extending perpendicular to the lifting axis.
  • the sorting device has at least one controllable guide element. Different control states of the guide element are assigned to different Ab healthcardien of workpiece parts.
  • the device is mounted on a fixed cutting station of the sheet metal stamping machine.
  • the invention has for its object to provide a machine tool and a method for discharging workpiece parts, which simplify the sorting of workpiece parts during the machining of a workpiece on the machine tool.
  • a machine tool of the type mentioned comprising: a first movement means for moving the workpiece in a first direction, two workpiece support surfaces for supporting the workpiece, between which extending along a second, preferably to the first vertical direction A second movement means for moving a press tool in the second direction, the press tool having two tool components, which are movable relative to each other along a stroke direction to the workpiece in the gap punching and / or deforming to edit, characterized by a in the second direction in the gap (controlled) movable receiving device for storing at least one workpiece part formed during punching and / or forming machining of the workpiece.
  • the machine tool described herein is a hybrid motion machine tool in which the workpiece is moved in a first direction (X direction) and the press tool in a second direction (Y direction).
  • a first, in the stroke direction (Z direction) upper tool component e.g. in the form of a punch
  • a second lower-stroke tool component e.g. in the form of a punching die
  • the two tool components along the stroke direction for machining the workpiece for example, the second, lower tool component remain stationary along the stroke direction, while the first, upper tool component is moved toward the second tool component in the stroke direction, or vice versa.
  • both tool components can also be moved along the stroke direction in order to machine the workpiece.
  • the stored in the receiving device workpiece parts may in particular have a uniform geometry.
  • the receiving device can be moved together with the press tool or possibly one of the tool components in the gap, but it is also possible that the receiving device is mounted on a carriage which is independent of the press tool or of the tool components of the press tool in the second direction is displaceable in the gap.
  • the or in the Receiving device mounted workpiece parts automatically or manually removed from the receiving device, for example, when this is moved to one of the two outer edges of the gap.
  • a controlled mobility of the receiving device in the gap makes it possible to position the workpiece parts received in the receiving device at different discharge positions along the gap at which the workpiece parts can be discharged, for example, into different collecting containers or the like.
  • a workpiece support which is suitable to support the plate-shaped workpiece surface.
  • Such a workpiece support surface does not have to form a continuous surface, but it is sufficient if the workpiece is supported at several (at least three, usually significantly more) points by support elements (possibly only selectively) to support the workpiece in a support plane, i. the workpiece support surface is formed in this case by the tops of the support elements.
  • the workpiece support surfaces, between which the gap is formed may be formed, for example, in the form of a brush or ball table.
  • the work piece to be machined is supported by many support elements arranged on or in a table surface in the form of brushes or (rotatable) balls, which together form the workpiece support surface.
  • rotatable rollers parallel to the gap arranged, rotatable rollers whose axis of rotation extends parallel to the gap may be provided as support elements for forming workpiece support surfaces.
  • the receiving device is attached to one of the tool components of the pressing tool and moved together with the tool component in the gap.
  • the receiving device is in this case typically attached to the lower stroke in the tool component, such as a punching die, and the receiving device is typically at least partially, usually arranged completely below the workpiece plane, which is defined by the tops of the two workpiece support surfaces.
  • the receiving device is in this case Typically, in the gap in the second direction (Y-direction) arranged laterally adjacent to the second tool component, that is, the gap is not widened by the receiving device along the first direction (X-direction).
  • the receiving device is typically arranged only so far away from the tool component that workpiece parts which are completely separate from the workpiece can reach the receiving device by the action of gravity.
  • guide devices can serve, for example, in the form of chutes or the like.
  • the receiving device has a parts container for depositing at least one workpiece part, preferably a plurality of workpiece parts.
  • the parts container is open at the top and serves to deposit a plurality of workpiece parts, which are formed during machining on the workpiece.
  • the workpiece parts are collected in the parts container and can be removed manually or automatically if necessary.
  • the cross section of the parts container preferably increases continuously in the Z direction from the plane of the workpiece support surfaces to the bottom region of the parts container in order to prevent jamming of workpiece parts.
  • the parts container may for this purpose have a conically widening to the container bottom basic shape.
  • the receiving device on a controllable discharge device for discharging stored in the receiving device workpiece parts.
  • the discharge device typically has at least two control states, wherein in a first control state, the workpiece parts remain in the discharge device and are discharged in a second control state from the receiving device, for example via an opening.
  • the discharge device may have, in addition to the second, a third, fourth,... Control state in which, in each case, workpiece parts are removed from the receiving device in different discharge directions. As a rule, all the workpiece parts stored in the receiving device are ejected jointly by the discharge device.
  • the machine tool comprises a control device for moving the receiving device to different discharge positions along the gap, as well as for controlling the discharge device for discharging workpiece parts at the different discharge positions along the gap.
  • the control device serves for the numerical control of the machine tool, for example the first and the second movement device and a lifting drive. If the receiving device is attached to a tool component of the pressing tool, the control device acts on the second movement device in order to move the receiving device to a respective discharge position along the gap. If the receiving device is displaceable in the gap by means of its own movement device or its own drive, the control device acts on this movement device or on the drive in order to position the receiving device at a predetermined discharge position along the gap. If the receiving device is movable independently of the tool component along the gap, this can be moved between a respective discharge position for discharging workpiece parts and a position adjacent to the tool component, at which the receiving device receives workpiece parts which are formed on the tool component.
  • the reject positions are typically predetermined positions in the second direction (Y direction) along the nip.
  • a collecting container or the like may be arranged in order to collect workpiece parts discharged from the receiving device via the discharge device.
  • the collecting containers can be arranged, for example, in a row along the second direction laterally next to the gap in order to collect or sort workpiece parts.
  • two rows of collecting containers may be provided, which are arranged below a respective workpiece support surface laterally next to the gap.
  • the collecting containers in one or possibly both rows can be arranged, for example, on a trolley, which is positioned next to the gap or the machine frame and, if necessary, aligned with the aid of positioning aids relative to the machine or to the gap.
  • the controllable discharge device has at least one pivotable flap, which has a first pivot position for supporting workpiece parts stored in the receiving device and a second pivot position for removing workpiece parts from the receiving device.
  • a first switching position of the discharge device in this case corresponds to the first pivot position of the pivotable flap and a second switching position of the discharge device corresponds to the second pivot position of the pivotable flap.
  • the first pivot position of the flap this forms on its upper side a bearing surface for workpiece parts.
  • the flap in the first pivot position typically (approximately) extends horizontally or (approximately) parallel to a workpiece support plane formed by the workpiece support surfaces.
  • the flap In the second pivoting position, the flap is oriented at a larger angle to the horizontal or to the workpiece support plane (downward), so that the workpiece or parts slide in the second pivot position on the top of the flap and are discharged in this way from the receiving device.
  • a pivot axis of the pivotable flap is aligned parallel to the second direction.
  • the workpiece part (s) are laterally, i. transversely to the gap, discharged in the direction of one of the two workpiece support surfaces, between which the gap is formed.
  • a plurality of collecting containers can be arranged on one or optionally on both sides of the gap, in which the workpiece parts are discharged.
  • the flap has a third pivot position for the removal of workpiece parts from the receiving device, wherein a discharge direction in the second pivot position differs from a discharge direction in the third pivot position.
  • the flap may be turned to the right from the first, typically substantially horizontal, position into the second pivot position and to the left in the third pivot position, or vice versa. If the pivot axis runs parallel to the second direction (Y direction) in this case, the workpiece parts are discharged laterally to a first side of the gap along the first discharge direction and discharged laterally to a second side of the gap along the second discharge direction.
  • the workpiece parts can be discharged, for example, in receiving containers, which are positioned on both sides of the gap laterally to the gap. This is favorable because in this way the number of receptacles at which the workpiece parts can be received laterally from the gap is increased.
  • the pivotable flap forms a bottom region of the parts container.
  • the receiving device has a parts container for collecting workpiece parts, the bottom region of which forms a flap which is moved into the second (or possibly the third) pivot position in order to discharge workpiece parts from the parts container.
  • the workpiece parts can also be removed from the parts container in a manner other than by a pivotable flap.
  • the bottom region of the parts container may have one or more regions which are not pivoted for discharging workpiece parts but are moved laterally in order to produce an opening in the bottom region of the parts container.
  • the machine tool comprises a further pivotable flap which is formed on a side region of the parts container, wherein the further pivotable flap in a first pivot position adjacent to the formed by the pivotable flap bottom portion of the parts container and wherein the further pivotable flap in a second Pivoting position is spaced from the bottom portion of the parts container, so that between the bottom portion and the opened further flap an opening in the side region of the parts container is formed.
  • the further flap is typically hinged at its upper edge to the side or at a side region of the parts container and is made of the first, lower Pivoting position, in which the flap closes the side portion of the parts container, moves to the second, upper pivot position, in which the further flap pivots outwardly and an opening in the side region of the parts container releases.
  • the flap and the further flap are preferably pivoted synchronously, ie they reach the first and second pivot positions substantially simultaneously.
  • the pivot axes of the flap and the further flap are aligned in parallel and spaced from each other.
  • the pivotable flap and the further pivotable flap are coupled for movement via a coupling gear, for example.
  • a movement coupling means that both flaps can be pivoted synchronously from the first to the second pivot position and vice versa via a single actuator.
  • the pivot axes of the two flaps are aligned parallel to each other.
  • the receiving device does not necessarily have to have a parts container to accommodate or collect a plurality of workpiece parts. Rather, the pivotable flap in the first pivot position form a bearing surface on which, if necessary, several workpiece parts are collected before the workpiece parts are discharged by the flap in the second or possibly a third, fourth, ... pivoting position is pivoted.
  • the workpiece parts positioned on the flap forming a deposit surface can be moved together with the lower tool component in the second direction along the nip and brought to a suitable discharge position along the nip.
  • the flap may possibly be mounted pivotably about more than one pivot axis, as in the cited above EP 0 945 196 A2 which is incorporated herein by reference in its entirety.
  • the receiving device has a storage surface which is formed on a pivotable flap.
  • the shelf as in the EP 0 945 196 A2 described be formed at the top of an endless conveyor belt, which is used as a discharge device of the receiving device and which serves in a first switching position in which the conveyor belt is not moved, for storing workpiece parts and which serves as a discharge device in a second or possibly third switching position to eject laterally on the conveyor belt stored workpiece parts.
  • the endless conveyor belt can in particular be reversible in its direction of movement to discharge workpiece parts in a second or third switching position on both sides of the gap.
  • the discharge device has at least one discharge chute for discharging workpiece parts out of the receiving device in a discharge direction extending transversely to the second direction.
  • the workpiece parts can be moved along the discharge chute in a direction transverse to the gap and, for example, received in collecting containers or the like.
  • An upper end of the discharge chute typically follows the flap pivoted into the second, third, ... pivot position.
  • the receiving device may in particular have two discharge chutes, which are mounted on opposite sides of the parts container or on opposite sides of a pivotable flap or rocker todocumentschleusen workpiece parts on different sides of the gap.
  • the receiving device has a feed chute for feeding workpiece parts from one of the tool components of the pressing tool.
  • the tool component of the pressing tool can be, for example, a punching die.
  • the feed chute is typically formed for feeding workpiece parts from the tool component to the receiver substantially along the second direction (Y direction).
  • Y direction the second direction
  • an upper opening of the parts container or a storage surface can be arranged, on which the workpiece part is deposited before it is discharged.
  • the workpiece parts can tilt after the punching and / or forming processing by the action of gravity on the feed chute, provided that their focus is on the feed chute.
  • the machine tool has a sensor device for detecting workpiece parts which pass through the feed chute or which project upwards out of the parts container.
  • the sensor device can be designed, for example, as a light barrier or as a light grid, in which a plurality of light barriers are arranged next to one another in order to enable a planar detection of workpiece parts.
  • the sensor device can be arranged at the lower end of the feed chute. If the receiving device is designed as a parts container, the sensor device can monitor the upper opening of the parts container at which the feed chute opens.
  • the machine tool may alternatively or additionally comprise a (further) sensor device for detecting workpiece parts which pass through the respective or a respective discharge chute.
  • the sensor device may be attached for this purpose at the lower end of the discharge chute.
  • the sensor device can be designed, for example, as a light barrier or as a light grid.
  • Another aspect of the invention relates to a method for discharging workpiece parts from a machine tool as described above, the method comprising: moving the receiver in the second direction along the gap until one of a plurality of reject positions along the gap is achieved, and discharging at least one stored in the receiving device workpiece part at the Ausschleusposition.
  • a sorting of workpiece parts can be made by these are discharged at different Ausschleuspositionen along the gap from the receiving device.
  • the removal device is moved together with a tool component of the pressing tool in the gap, the machining of the workpiece for the removal is optionally interrupted until the one or more workpiece parts are discharged.
  • a relative movement for conveying the workpiece part from the tool component into the receiving device takes place between one of the tool components of the pressing tool and a workpiece part resting on the tool component.
  • a movement of the tool component in the second direction which is so fast that the tool component is pulled away under the workpiece part, so that it is conveyed by the tool component - possibly via a feed chute - in the adjacent receiving device, even if the center of gravity of the workpiece part is not above the feed chute.
  • Fig. 1 shows an example of a machine tool 1 in the form of a punch press, which is formed in the example shown for punching and, if necessary, for forming a plate-like workpiece 2 in the form of a sheet metal.
  • the machine tool 1 comprises a first movement device 3, which in Fig. 1 is indicated by a double arrow to the workpiece 2 resting on two workpiece support surfaces 4a, 4b shown in dashed lines in a first direction (hereinafter: X-direction) of an in Fig. 1 to move the displayed XYZ coordinate system.
  • the workpiece support surfaces 4a, 4b may be formed, for example, at the top of workpiece tables, which are provided with rollers for the support of the workpiece 2.
  • the first movement device 3 may have a coordinate guide which clamps the workpiece 2 laterally and moves in the X direction over the workpiece support surfaces 4a, 4b.
  • the machine tool 1 has a machine frame 5 arranged between the workpiece support surfaces 4a, 4b, in the example shown O-shaped, which encloses a frame interior 6, which forms the processing region of the stamping press.
  • a gap 7 is formed between the workpiece support surfaces 4a, 4b, which extends along a second direction (in the following: Y direction) perpendicular to the X direction.
  • a second movement device 8 serves to move a pressing tool 9 in the Y direction along the gap 7.
  • the pressing tool 9 comprises a first, upper tool component in the form of a punch 9a and a second, lower tool component in the form of a punching die 9b.
  • the punching die 9b has a die opening into which the punch 9a dips when punching the workpiece 2.
  • a lifting drive 10 which acts on a plunger, at the lower end of the punch 9a is mounted.
  • the second movement device 8 comprises an upper and lower drive spindle 11 a, 11 b, which are rotatably connected to the machine frame 5 and attached to the spindle nuts of the linear actuator 10 with the punch 9a and the punching die 9b, to these in the Y direction method.
  • the second movement device 8 has a motor drive not shown in detail, with which the punch 9a and the punching die 9b can be moved synchronously in the gap 7 or in the frame interior 6.
  • the second movement device 8 can be designed to displace the punching die 9b independently of the punching punch 9a in the Y direction.
  • the second movement device 8 may have two separately controllable drives, but it is also possible that the movement device 8 has for this purpose only a motor drive and the synchronous process of the punch 9a and the punching die 9b via a mechanical coupling gear.
  • the machine tool 1 has a receiving device 12 for the storage of workpiece parts 2a (see. Fig. 2c ), which were separated from the workpiece 2 during punching processing.
  • the receiving device 12 is movable in the gap 7 in the Y direction and in the example shown on the punching die 9b, more precisely attached to a connected with this punching console, mounted, which forms part of the spindle nut of the lower drive spindle 11b.
  • the receiving device 12 also forms part of the spindle nut of the lower drive spindle 11b and can be moved together with the punching die 9b in the gap 7 with the aid of the second movement device 8.
  • the machine tool 1 has a control device 13 which numerically controls, inter alia, the first and second movement means 3, 8 and the lifting drive 10.
  • the control device 13 is formed in the case shown, or programmed, the receiving means 12 together with the punch die 9b controlled to different Ausschleuspositionen Y A1, ..., Y A3 along the gap 7 to move to the receiving device 12 stored workpiece parts 2a laterally reinforcedschleusen from the gap 7.
  • the control device 13 selects the discharge position Y A1 ,..., Y A3 as a function of the type, in particular the geometry, of the workpiece parts 2a stored in the receiving device 12.
  • a respective Ausschleusposition Y A1 , ..., Y A3 is in the in Fig.
  • a box-shaped collecting container 14 arranged to receive the stored in the receiving device 12 and at the Ausschleusposition Y A1 , ..., Y A3 discharged workpiece parts 2a.
  • the receiving device 12 can be discharged in this way workpiece parts 2a depending on their type or their geometry in different collection container 14 and thus sorted. It is understood that in Fig. 1 For simplicity of illustration, only three receptacles 14 are shown, but typically receptacles 14 are arranged along the entire extent of the gap 7 in the Y direction.
  • the receiving device 12 For discharging workpiece parts 2a at a respective discharge position Y A1 ,..., Y A3 , the receiving device 12 has a discharge device 15, which is described below with reference to FIG Fig. 2a and Fig. 2b will be described in more detail.
  • the receiving device 12 has in the in Fig. 2a, b Example shown a box-shaped parts container 16, can be stored and collected in the workpiece parts 2a.
  • the parts container 16 has a cross section that widens toward the bottom portion to prevent jamming of workpiece parts 2a.
  • the discharge device 15 has a pivotable flap 17, which forms a bottom region of the parts container 16.
  • the flap 17 is of an in Fig.
  • FIG. 2a shown first, substantially horizontal pivot position S1 for supporting workpiece parts 2a in an in Fig. 2b shown second pivot position S2 pivotable.
  • the flap 17 closes the parts container 16, in the second pivot position S2, the flap 17 is inclined downwards by approximately 30 ° with respect to the first pivot position S1, whereby the workpiece parts 2a resting on the flap 17 at the top of the flap 17 slide along to empty the parts container 16 andnostischleusen the workpiece parts 2a laterally from the gap 7.
  • a pivot axis 18 of the pivotable flap 17 extends in the Y direction, so that the workpiece parts 2a are discharged via the flap in a discharge direction A1 which extends in a plane transverse to the Y direction and thus transversely to the gap 7.
  • the discharge device 15 has an actuator in the form of a pneumatically actuated by means of the control device 13 cylinder 19 (see. Fig. 2d ) mounted on the outside of the parts container 16 for pivoting the swingable flap 17 from the first pivot position S1 to the second pivot position S2 and vice versa.
  • the angle between the first pivot position S1 and the second pivot position S2 of the flap 17 in the example shown is only approximately 30 °, so that the flap 17 located between the lower end of the second pivot position S2 and the parts container 16 formed opening has a relatively low height.
  • a further pivotable flap 20 which is attached to a side portion of the parts container 16 and hinged approximately at the level of the lower third of the side region is connected to the parts container 16.
  • the further flap 20 borders in a first, in Fig. 2a shown in the first pivot position S1 flap 17 and forms in the first pivot position S1 part of the side wall of the parts container 16.
  • resting workpiece parts 2a are thus in the first pivot position S1 of the further flap 20 on the side Falling out of the parts container 16 prevented.
  • the further flap 20 is movably coupled on the side region of the parts container 16 with the flap 17 at the bottom region of the parts container 16 via a mechanical coupling mechanism 21.
  • the further flap 20 is pivoted synchronously with the flap 17 in the actuation of the actuator 19 and the cylinder, so that the flap 17 and the further flap 20 are pivoted together from the first pivot position S1 to the second pivot position S2, and vice versa.
  • the further flap 20 is pivoted by an angle of about 30 ° upwards and is laterally beyond the side region of the parts container 16 via.
  • the further flap 20 is thus spaced from the flap 17 forming the bottom region and increases the height of the opening, via which the parts container 16 can be emptied. Due to the enlarged opening and comparatively large workpiece parts 2a can be discharged from the parts container 16.
  • Fig. 2c shows a detail of the receiving device 12 with the lower end of the parts container 16, in which the pivotable flap 17 and the further pivotable flap 20 are arranged in the second switching position S2.
  • the discharge device 15 has a discharge chute 22, which adjoins the located in the second pivot position S2 flap 17 to classroomschleusen workpiece parts 2a along the discharge direction A1 transverse to the Y-direction and thus transversely to the gap 7.
  • a light barrier 23c is formed at the lower end of the discharge chute 22 between a transmitter 23a and a receiver 23b in order to detect workpiece parts 2a which have passed through the discharge chute 22 and thus into one of the in Fig.
  • a reject plate 24 is attached to guide the workpiece parts 2a along the discharge direction A1 to a respective collection container 14.
  • the deflector plate 24 prevents workpiece parts 2a due to process-related vibrations skip the photocell 23c and possibly the collecting container 14.
  • Fig. 2d shows a sectional view of the upper edge of the parts container 16, on which a sensor device 25 with formed on opposite sides of an upper opening of the parts container 16 transmitter 25a and receiver 25b, between which a flat light grid 25c is generated to monitor whether workpiece parts 2a from the parts container 16 projecting upwards, ie to check whether the parts container 16 is completely filled.
  • the sensor device 25 also makes it possible to monitor whether a workpiece part 2a has passed a feed chute 26 for feeding workpiece parts 2a from the punching die 9b to the parts container 16 or to the receiving device 12 or not.
  • the light grid 25c of the sensor device 25 is formed at the lower end of the feed chute 26.
  • the feed chute 26 at its upper end a collar 27, which the circular outer contour of the punching die 9b partially surrounds laterally.
  • the parts container 16 may be provided on its upper side with a (not shown) workpiece support surface, which is moved with the receiving device 12 in the gap 7. It is understood that in this case, between the supply chute 26 and the workpiece support surface remains a lateral opening which is large enough to spend workpiece parts 2a in the parts container 16. Also on the punching die 9b, if necessary, parts of a workpiece support surface can be attached, which is moved in the gap 7 with the punching die 9b.
  • Fig. 3a, b show a further example of a receiving device 12, which differs from that associated with Fig. 2a-d described recording device 12 differs in that no parts container 16 is provided for collecting workpiece parts 2a: In the in Fig. 3a, b Rather, a workpiece part 2a is placed directly on a flap 17, which at the same time is part of a discharge device 15 and which is located in Fig. 3a is in a first, horizontal pivot position S1.
  • a plurality of workpiece parts 2a can be stored or collected on the serving as a support surface flap 17 before they are discharged from the discharge device 12.
  • the pivotable flap 17 can for this purpose in a second, in Fig.
  • pivot position S2 are pivoted, in which the resting on the flap 17 workpiece part 2a along a first discharge direction A1 via a fixed discharge chute 22 in a in Fig. 3a, b Not shown collecting container is discharged, which can be arranged for example laterally next to the gap 7 under the second workpiece support surface 4b of the machine tool 1.
  • Fig. 3b shows the flap 17 in a third pivot position S3, which is about 30 ° relative to the in Fig. 3a shown first pivot position S1 is inclined downwards.
  • the workpiece part 2a is conveyed to a further discharge chute 22a, along which the workpiece part 2a can slide and be collected in a collecting container, not shown, which can be arranged below the first workpiece support surface 4a of the machine tool 1, for example.
  • a collecting container not shown
  • Shown receiving device 12 thus allows a discharge of workpiece parts 2a on both sides of the gap 7.
  • the in Fig. 2a-d Shown receiving device 12, more specifically their discharge device 15, may optionally be formed such that workpiece parts 2a can be discharged to both sides of the gap 7.
  • FIG. 3a, b Recording device 12 shown has analogous to in Fig. 2a-d shown receiving device 12 a feed chute 26 to carry workpiece parts 2a of the punching die 9b to the pivotable flap 17.
  • the flap 17 is pivoted by means of an actuator in the three different pivot positions S1 to S3, wherein the actuator, for example, as in the EP 0 945 196 A2 may be formed described.
  • the flap 17 may possibly also be pivoted about more than one pivot axis, as also in the EP 0 945 196 A2 is described.
  • the in Fig. 3a, b shown recording device 12 In place of the pivotable flap 17, the in Fig. 3a, b shown recording device 12, for example, have a possibly reversible in its direction endless conveyor belt are placed on the workpiece parts 2a and with the workpiece parts 2a either to one of the two Ausschleusloisen 22, 22a or possibly directly into the collection container 14 can be transported laterally are arranged next to the gap 7.
  • a pressing tool 9 with a punch 9a and a punching die 9b other pressing tools 9 can be used in the machine tool 1, for example pressing tools 9, which have a bending punch and a bending die.
  • the receiving device 12 can be controlled from a position adjacent to the stamping die 9b in which these workpiece parts 2a receive, and moved independently of the stamping die 9b to different discharge positions Y A1 ,..., Y A3 along the gap 7. As soon as the workpiece parts 2a accommodated in the receiving device 12 have been ejected at the discharge positions Y A1 ,..., Y A3 , the receiving device 12 can be moved into a position adjacent to the stamping die 9b in the gap 7 in order to again receive workpiece parts 2a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Feeding Of Workpieces (AREA)
  • Press Drives And Press Lines (AREA)
  • Punching Or Piercing (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (14)

  1. Machine-outil (1) conçue pour usiner, par poinçonnage et/ou déformation, une pièce (2) du type plaque se présentant notamment comme une tôle, comprenant :
    un premier dispositif (3) de mise en mouvement, conçu pour mouvoir la pièce (2) dans une première direction (X),
    deux surfaces (4a, 4b) de support de pièces, conçues pour procurer un appui à ladite pièce (2) et entre lesquelles est réservé un espace interstitiel (7) s'étendant le long d'une deuxième direction (Y) perpendiculaire, de préférence, à ladite première direction,
    un second dispositif (8) de mise en mouvement, conçu pour mouvoir un outil de pressage (9) dans ladite deuxième direction (Y), ledit outil de pressage (9) comportant deux éléments constitutifs (9a, 9b) pouvant êtres mus l'un par rapport à l'autre le long d'une direction de levage (Z), de manière à usiner ladite pièce (2) par poinçonnage et/ou déformation, dans ledit espace interstitiel (7), caractérisée par un dispositif de réception (12) pouvant être déplacé dans la deuxième direction (Y), dans l'espace interstitiel (7), en vue du dépôt d'au moins une partie (2a) de la pièce formée au cours de l'usinage de ladite pièce (2) par poinçonnage et/ou déformation.
  2. Machine-outil selon la revendication 1, dans laquelle le dispositif de réception (12) est implanté sur l'un (9b) des deux éléments constitutifs de l'outil et peut être déplacé, dans l'espace interstitiel (7), conjointement audit élément constitutif (9b) dudit outil.
  3. Machine-outil selon la revendication 1 ou 2, dans laquelle le dispositif de réception (12) est muni d'un réceptacle (16) de pièces, en vue du dépôt d'au moins une partie (2a) de la pièce.
  4. Machine-outil selon l'une des revendications précédentes, dans laquelle le dispositif de réception (12) est doté d'un dispositif d'évacuation (15) apte à la commande, en vue d'évacuer des parties (2a) de pièces déposées dans ledit dispositif de réception (12).
  5. Machine-outil selon la revendication 4, comprenant en outre :
    un dispositif de commande (13) dévolu à la mise en mouvement commandée du dispositif de réception (12) vers différents emplacements d'évacuation (YA1, ..., YA3), le long de l'espace interstitiel (7), ainsi qu'au pilotage du dispositif d'évacuation (15) en vue d'évacuer des parties (2a) de pièces auxdits différents emplacements d'évacuation (YA1,..., YA3).
  6. Machine-outil selon la revendication 4 ou 5, dans laquelle le dispositif d'évacuation (15), apte à la commande, présente au moins un volet pivotant (17) occupant une première position (S1) prise par pivotement, afin de procurer un appui à des parties (2a) de pièces déposées dans le dispositif de réception (12), et une deuxième position (S2) prise par pivotement, afin d'évacuer des parties (2a) de pièces hors dudit dispositif de réception (12).
  7. Machine-outil selon la revendication 6, dans laquelle un axe de pivotement (18) du volet pivotant (17) est orienté parallèlement à la deuxième direction (Y).
  8. Machine-outil selon la revendication 6 ou 7, dans laquelle le volet pivotant (17) occupe une troisième position (S3) prise par pivotement, afin d'évacuer des parties (2a) de pièces hors du dispositif de réception (12), une direction d'évacuation (A1), dans la deuxième position (S2) prise par pivotement, étant différente d'une direction d'évacuation (A2) dans ladite troisième position (S3) prise par pivotement.
  9. Machine-outil selon l'une des revendications 6 à 8, dans laquelle le volet pivotant (17) forme une région du fond du réceptacle (16) de pièces.
  10. Machine-outil selon la revendication 9, comprenant par ailleurs : un volet pivotant supplémentaire (20) qui est formé sur une région latérale du réceptacle (16) de pièces ; est limitrophe, dans une première position (S1) prise par pivotement, de la région du fond dudit réceptacle (16) de pièces, formée par le volet pivotant ; et est éloigné de ladite région du fond dudit réceptacle (16) de pièces, dans une deuxième position (S2) prise par pivotement, les mouvements dudit volet pivotant (17) et dudit volet pivotant supplémentaire (20) étant préférentiellement couplés.
  11. Machine-outil selon l'une des revendications 5 à 10, dans laquelle le dispositif d'évacuation (15) est muni d'au moins un glissoir d'évacuation (22, 22a) afin d'évacuer des parties (2a) de pièces, hors du dispositif de réception (12), dans une direction d'évacuation (A1, A2) s'étendant, de préférence, transversalement par rapport à la deuxième direction (Y).
  12. Machine-outil selon l'une des revendications précédentes, dans laquelle le dispositif de réception (12) est doté d'une goulotte d'amenée (26), affectée à la délivrance de parties (2a) de pièces émanant de l'un (9b) des éléments constitutifs de l'outil de pressage (9).
  13. Machine-outil selon la revendication 12, comprenant de surcroît : un dispositif détecteur (25), dévolu à la détection de parties (2a) de pièces qui franchissent la goulotte d'amenée (26) ou font saillie, vers le haut, au-delà du réceptacle (16) de pièces.
  14. Procédé d'évacuation de parties (2a) de pièces usinées, hors d'une machine-outil (1) conforme à l'une des revendications précédentes, ledit procédé consistant :
    à déplacer le dispositif de réception (12) dans la deuxième direction (Y), le long de l'espace interstitiel (7), jusqu'à ce que l'un de plusieurs emplacements d'évacuation (YA1, ..., YA3) soit atteint le long dudit espace interstitiel (7), et
    à évacuer, audit emplacement d'évacuation (YA1, ..., YA3), au moins une partie (2a) de pièce déposée dans ledit dispositif de réception (12).
EP15172873.0A 2015-06-19 2015-06-19 Machine-outil et procédé destinés a l'évacuation de parties d'une pièce à usiner Active EP3106241B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP15172873.0A EP3106241B1 (fr) 2015-06-19 2015-06-19 Machine-outil et procédé destinés a l'évacuation de parties d'une pièce à usiner
EP17185041.5A EP3269468A1 (fr) 2015-06-19 2015-06-19 Machine-outil de décharge des pièces d'ouvrage
PL15172873T PL3106241T3 (pl) 2015-06-19 2015-06-19 Obrabiarka oraz sposób odprowadzania części przedmiotu obrabianego
JP2016120121A JP6556098B2 (ja) 2015-06-19 2016-06-16 工作機械及びワークパーツを排出する方法
CN201610824397.5A CN106391904B (zh) 2015-06-19 2016-06-17 工具机以及用于提取工件部分的方法
US15/186,902 US10625330B2 (en) 2015-06-19 2016-06-20 Machine tools and methods for ejecting workpiece parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15172873.0A EP3106241B1 (fr) 2015-06-19 2015-06-19 Machine-outil et procédé destinés a l'évacuation de parties d'une pièce à usiner

Related Child Applications (1)

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EP17185041.5A Division EP3269468A1 (fr) 2015-06-19 2015-06-19 Machine-outil de décharge des pièces d'ouvrage

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Publication Number Publication Date
EP3106241A1 EP3106241A1 (fr) 2016-12-21
EP3106241B1 true EP3106241B1 (fr) 2017-08-09

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EP15172873.0A Active EP3106241B1 (fr) 2015-06-19 2015-06-19 Machine-outil et procédé destinés a l'évacuation de parties d'une pièce à usiner

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EP (2) EP3269468A1 (fr)
JP (1) JP6556098B2 (fr)
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Also Published As

Publication number Publication date
US10625330B2 (en) 2020-04-21
PL3106241T3 (pl) 2018-01-31
JP2017013128A (ja) 2017-01-19
JP6556098B2 (ja) 2019-08-07
EP3269468A1 (fr) 2018-01-17
US20160368040A1 (en) 2016-12-22
CN106391904B (zh) 2019-08-13
CN106391904A (zh) 2017-02-15
EP3106241A1 (fr) 2016-12-21

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