WO2022058082A1 - Procédé et machine-outil pour usiner un panneau de bois - Google Patents

Procédé et machine-outil pour usiner un panneau de bois Download PDF

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Publication number
WO2022058082A1
WO2022058082A1 PCT/EP2021/071583 EP2021071583W WO2022058082A1 WO 2022058082 A1 WO2022058082 A1 WO 2022058082A1 EP 2021071583 W EP2021071583 W EP 2021071583W WO 2022058082 A1 WO2022058082 A1 WO 2022058082A1
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WO
WIPO (PCT)
Prior art keywords
recess
wood
tool
furniture
panel
Prior art date
Application number
PCT/EP2021/071583
Other languages
German (de)
English (en)
Inventor
Bernd Butzer
Original Assignee
Multi-Cut Systems GmbH
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 Multi-Cut Systems GmbH filed Critical Multi-Cut Systems GmbH
Priority to EP21755421.1A priority Critical patent/EP4103373B1/fr
Publication of WO2022058082A1 publication Critical patent/WO2022058082A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
    • B27B5/06—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels
    • B27B5/065—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels with feedable saw blades, e.g. arranged on a carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C9/00—Multi-purpose machines; Universal machines; Equipment therefor
    • B27C9/04—Multi-purpose machines; Universal machines; Equipment therefor with a plurality of working spindles

Definitions

  • the present invention relates to a method for processing a wood-based panel using a machine tool, and a machine tool for carrying out the method.
  • DE 10 2012 110453 B4 discloses a method for processing a wood-based panel using a machine tool, comprising the following steps:
  • a recess is made in the wood-based panel in order to be able to use the recessing tool to create a recess parallel to the plane of the panel in the side wall of the recess.
  • the indentation tool is a drill, and the indentation made in a side wall of the recess is consequently limited to a substantially cylindrical bore.
  • the wood-based panel is divided into furniture panels in a separate step on the same machine tool and can be carried out before the recess is made or after the depression is made.
  • the steps of providing face holes and dividing the wood-based panel are carried out in an integrated manner on one machine, and a separate drilling process on another machine is not required. In this way, in particular, there is no personnel expenditure for transporting the furniture panels to a separate machine, which was planned earlier, on which, for example, end bores were made in the panels.
  • connection of connecting means in the depressions in the narrow surfaces of the furniture panels has so far continued to be either manual or automated on a separate machine.
  • the manual attachment of the connecting means or the transport of the furniture panels with the recesses already made to a separate machine is expensive and requires more time and additional personnel.
  • a further object of the invention is to provide a machine tool for carrying out the method according to the invention.
  • this object is achieved in a generic method in that the step of dividing the wood-based panel into furniture panels comprises a first sub-step and a second sub-step, the first sub-step comprising making at least one first separating cut in the wood-based panel, which one with a connecting means to provided connecting narrow surface of a furniture panel is produced, wherein the second partial step comprises making at least one second separating cut in the wood-based panel, which produces a connection-free narrow surface of the furniture panel, and wherein the method further comprises an attachment step of attaching the connecting means in the recess, wherein the attachment step between the first sub-step and the second sub-step is carried out.
  • the attachment step according to the invention of attaching the connecting means in the depression takes place on the same machine tool as the steps of the generic method. This eliminates the need for a separate machine for driving connecting means into the depressions in the narrow connecting surfaces of the furniture panels and also eliminates the time required for this transport. Additional personnel to transport the furniture panels to this machine is therefore not required.
  • the first partial step which produces narrow connecting surfaces of the furniture panel to be provided with a connecting means, takes place before the attachment step.
  • the connecting means attached in the attachment step would be destroyed in the first partial step due to the first separating cut to produce the narrow connection surface.
  • the second partial step which creates connection-free narrow surfaces of the furniture board, takes place after the attachment step. Carrying out the first partial step before the attachment step prevents a connecting means attached in the depression from being destroyed by the first separating cut in the first partial step. Furthermore, carrying out the second sub-step after the attachment step allows the wood-based panel to be firmly fixed to the machine tool during the first sub-step and the attachment step, and slipping or tipping can be reliably avoided.
  • At least some of the furniture panels are rectangular, with the first sub-step comprising making two first separating cuts to produce two opposing first connecting narrow surfaces of the rectangular furniture panel, and the second sub-step comprising making two second includes separating cuts for producing two opposing second connection-free narrow surfaces of the rectangular furniture panel, which are orthogonal to the first connection narrow surfaces.
  • box furniture and the associated furniture panels such as sides, cheeks, shelves or walls of furniture are rectangular.
  • the connecting means can be attached to the corresponding opposite narrow connecting surfaces on these rectangular furniture panels. Furthermore, the degree of utilization of the wood-based panel is increased by the rectangular shape of the furniture panels. After the first partial step, two opposing first narrow connecting surfaces are produced. The furniture panel is still connected to the wood-based panel on the orthogonal sides and is thus firmly fixed to the machine table. During the attachment step of attaching the connecting means, which can involve considerable forces on the connecting edge, the furniture panel is therefore held firmly in position.
  • the connecting means is preferably a round dowel and the indentation is a cylindrical bore and/or the connecting means is a flat dowel and the indentation is a groove.
  • a cylindrical bore is produced when a drill is used to make an indentation in a side wall of the recess.
  • a round dowel is attached to this hole as a fastener. It is also possible to create several bores and thus attach several round dowels to a narrow connection surface. This makes it possible to connect the furniture panel to another furniture panel at the connecting narrow surface via the attached round dowel(s).
  • a groove or a T-groove is produced when using a biscuit jointer to make an indentation in a side wall of the recess.
  • a biscuit dowel e.g. a Lamello® dowel, a FixChip® dowel or a Lamello® Clamex P connector
  • the first separating cut can be carried out in such a way that the narrow connecting surface of the furniture board is inclined at an angle of 45° to 90° relative to a main surface in the plane of the wood-based material board.
  • the use of the furniture board may require that the connecting narrow surface is not aligned perpendicularly to the main surface in the plane of the board.
  • a corner joint of two furniture panels may require a miter joint with joint faces that are not oriented perpendicular to the major surface in the plane of the panel.
  • the narrow connecting surfaces are often inclined by 45° relative to the main surface in the panel plane. Such a connection is called a miter connection.
  • the connecting narrow surfaces are often arranged at 90° relative to the plane of the plate. Carrying out the separating cut to produce the connecting narrow surface of the furniture panel at an angle of 45° to 90" thus increases the design freedom of the furniture panels and the flexibility of their use. A miter joint of furniture panels can thus be efficiently implemented.
  • the indentation is made orthogonally to the narrow connecting surface of the furniture panel.
  • the first partial step according to the invention and the step of making a recess in the wood-based panel can be carried out one after the other.
  • first partial step and the step of making a recess in the wood-based panel are carried out one after the other, for the individual steps different tools are used.
  • a saw can be used for the first separating cut and a milling machine can be used to make the recess.
  • the first partial step can be carried out before or after the recess is made.
  • the use of different tools can be preferred, since this can, for example, reduce tool wear or improve the quality of the separating cut.
  • a recessing tool By creating a recess (also often referred to as a pocket) in the wood-based panel, a recessing tool can be inserted into the recess to create the recess.
  • the first partial step and the step of making a recess in the wood-based panel can be carried out in one operation using a milling tool.
  • the milling tool performs the first separating cut and creates the connecting narrow surface of the furniture panel.
  • the milling tool traces a loop-shaped line adjacent to the narrow connecting surface and thereby creates the cutout in the wood-based panel.
  • Carrying out the first sub-step and making the recess in the wood-based panel in one operation simultaneously creates a clean, narrow connecting surface and enables subsequent insertion of a deepening tool into the recess. Because both steps are performed in one operation with one milling tool, no additional tools or tool changes are required, and the time required to complete the steps is reduced.
  • the recess adjoins the at least one first separating cut in such a way that the narrow connecting surface of the furniture panel encompasses the side wall of the recess in which the depression is made, or that the side wall of the recess is separated from the at least one first separating cut by a predetermined buffer distance is spaced.
  • the connecting narrow surface of the furniture panel includes the side wall of the recess, no more material of the wood-based panel has to be separated in this area during the at least one first separating cut, since this part of the narrow surface has already been exposed by the recess. If, on the other hand, the side wall of the recess is separated from the at least one first separating cut by a predetermined buffer distance is spaced apart, the material of the wood-based material board is separated in the at least one first separating cut over the entire length of the connecting narrow surface, as a result of which a clean and uniform cut edge can be achieved.
  • the buffer spacing is less than or equal to 5mm.
  • a buffer distance of less than or equal to 5 mm ensures on the one hand that a clean and even cut edge is achieved and on the other hand reduces the amount of waste generated by unused areas in the wood-based panel between the furniture panels.
  • connection means attachment unit for use in the method according to the invention, the connection means attachment unit comprising the following: a magazine for accommodating a plurality of connection means, a tank for accommodating at least one liquid, a liquid application device for introducing the at least a liquid from the tank into the cavity and/or onto the lanyard, and a driving device for driving the lanyard into the cavity, the driving device being provided in a lower region in operation of the lanyard application unit.
  • the connecting means attaching unit first moves to a predetermined position in the recess which is adjacent to the previously made recess.
  • the fasteners to be attached are located in an integrated magazine.
  • the lanyard attachment unit therefore does not have to be moved out of the predetermined position and manually provided with a new lanyard, thereby increasing the degree of automation of the method and reducing the process time.
  • the liquid application device By means of the liquid application device, the at least one liquid contained in the tank is introduced from the tank into the depression and/or applied to the connecting means.
  • the liquid therefore does not have to be supplied separately from the outside, but can be introduced into the depression directly from the tank by the liquid application device and/or applied to the connecting means. This also increases the degree of automation of the process and reduces the process time.
  • the connecting means is then driven into the depression by means of the driving-in device.
  • the driving-in device is provided in a lower region of the connecting means attachment unit.
  • the driving device integrated in the lanyard attachment unit drives this Connection means automated and with a high degree of accuracy in the recess, so that can be dispensed with a manual driving or the transport of furniture panels to another machine for driving a connection means.
  • the connecting means attachment unit can also have further rotational degrees of freedom (eg on a 5-axis machine tool), whereby the freedom of movement of the connecting means attachment unit is improved.
  • driving form-fitting fasteners such as the Lamello® Clamex P fastener
  • the driving-in takes place via a rotary movement of the fastener attachment unit and/or via a rotational movement Driving in using the driving device.
  • it is a positive or non-positive connection, which is why, for example, an additional adhesive can be dispensed with.
  • the space available in the recess for the connecting means attachment unit is limited downwards by the machine tool.
  • the connecting means attachment unit can be moved into the recess from above without any problems in order to attach connecting means.
  • the connecting means attachment unit enables the attaching step of attaching the connecting means to be carried out on the same machine tool as the other method steps according to the invention.
  • the need for a separate machine for driving connecting means into the depressions in the narrow connecting surfaces of the furniture panels and the time required for transport to such a machine is eliminated. Additional personnel to transport the furniture panels to this machine is therefore not required.
  • the at least one liquid preferably includes water and/or an adhesive.
  • the volume expands and the material "swells" at these points. If the fastener is driven into the depression after the water has been applied and before it swells, the subsequent Expansion of the volume of the connection means and the reduction of the volume of the recess a press fit and the connection means is held firmly in its position in the recess. If, in addition or instead, an adhesive is introduced into the recess and/or applied to the connection means, the connection means is additionally or instead held firmly in its position in the depression by the resulting adhesive force
  • Fasteners can also be pre-glued. However, it should be noted that when using so-called pre-glued fasteners, the introduction of water is usually necessary. The fasteners are already provided with adhesive in advance, which is activated by contact with water. Such pre-glued lanyards simplify the installation of the lanyard, reduce the complexity of the lanyard installation unit, and reduce the amount of maintenance required.
  • the connecting means attachment unit can also include an interface for the mechanical as well as for the pneumatic, hydraulic and/or electrical connection to the machine tool.
  • the interface which connects the connecting means attachment unit to the machine tool, mechanical, pneumatic, hydraulic and/or electrical energy can be transmitted to the connecting means attachment unit as required.
  • the universal interface also allows the lanyard attachment unit to be replaced and the lanyard attachment unit to be used on another machine tool.
  • a machine tool for carrying out the method according to the invention comprising a machine table on which a wood-based panel can be fixed, a milling tool for making a recess in the wood-based panel, and a deepening tool that can be replaced in the recess and is designed for this purpose in a side wall to create an indentation in the recess.
  • the machine tool of the present invention is characterized by further comprising the fastener attachment unit of the present invention.
  • the machine tool according to the present invention enables all method steps according to the invention to be carried out without the wood-based panel or the furniture panel obtained from it having to be further processed on another machine. As a result, the time required for transport to another machine to drive in the fasteners and the additional personnel required for this are eliminated. Therefore, the machine tool according to the present invention is capable of producing finished furniture panels of high quality with fasteners already attached, without any retooling operations or additional machines and with a small outlay in terms of manpower and time.
  • the machine tool according to the invention also comprises a tool carrier that can be moved along the machine table with a slide that can be moved thereon, and a drive unit that is arranged on the slide and has a tool receiving device, the tool receiving device being used for the mechanical as well as for the pneumatic, hydraulic and/or electrical connection to the milling tool and/or the indenting tool and/or the fastener application unit.
  • the tooling fixture serves as a universal interface (e.g. for an HSK style 63F tooling) between the milling tool and/or the gouging tool and/or the fastener attachment unit and the machine tool.
  • the tool is preferably on the
  • the tool holder device is connected to the drive unit (e.g. an electric spindle) of the machine tool and can therefore be arranged in any position in order to process the wood-based panel.
  • the tool can also have further rotational degrees of freedom (e.g. on a 5-axis machine tool), which further improves the freedom of movement and the arrangement of the tool for processing the wood-based panels.
  • the tools can be connected to the machine tool via the tool holder device.
  • mechanical as well as pneumatic, hydraulic and/or electrical energy can be transmitted between the machine tool and the tool via this interface.
  • the carriage with the drive unit and the tool holder device enable the wood-based panel to be processed quickly and flexibly on a machine tool with various tools, without the wood-based panel or the furniture panels made from it having to be transported to another machine.
  • the machine tool also includes an electronic control unit which is designed to cause the machine tool to carry out the method according to the invention automatically.
  • the electronic control unit controls the machine tool with commands for carrying out the method according to the invention and can adapt the commands as required.
  • the electronic control unit also makes it possible for a machine tool to be retrofitted with the connecting means attachment unit in order to be able to carry out the method according to the invention.
  • FIG. 1A shows a schematic side view of a machine tool according to the invention
  • FIG. 1B shows a schematic plan view of a machine tool according to the invention
  • FIG. 2A shows a schematic plan view of a wood-based material panel to be processed
  • FIG. 2B shows an enlarged detailed top view of FIG. 2A in the area of a depression for a round dowel
  • Fig. 2C is an enlarged detailed plan view of Fig. 2A in the area of a recess for a biscuit,
  • FIG. 3 shows a schematic partial side view of the wood-based panel during the process step of making a depression
  • FIG. 4 shows a schematic partial side view of the wood-based material board during the attachment step according to the invention of attaching the connecting means in the recess
  • Figure 5 is a schematic partial side view of a furniture panel having a sloping joint face for use in a miter joint
  • Figure 6 is a schematic view of a fastener application unit according to the present invention.
  • FIG. 1A shows a schematic side view
  • FIG. 1B shows a schematic top view of a machine tool 10 according to the present invention.
  • the machine tool 10 includes a machine table 11 , a guide 12 , a tool carrier 13 , a slide 14 and an electronic control unit (not shown), which controls all tools and other components of the machine tool 10 .
  • One or more wood-based panels 20 can be arranged next to one another and processed on the machine table 11 .
  • the machine table 11 also includes a fixing device, which in the illustrated embodiment includes a vacuum table 15, for fixing the wood-based panel 20 to the machine tool 10.
  • a fixing device which in the illustrated embodiment includes a vacuum table 15, for fixing the wood-based panel 20 to the machine tool 10.
  • the individual fields 151 are separated and sealed from one another by the sealing strips 153 .
  • a vacuum can be generated in each field 151, by means of which the wood-based panel 20 can be fixed on the machine tool 10.
  • the fields 151 can be controlled separately from one another by means of the electronic control unit, so that a vacuum is generated only on those fields 151 above where the wood-based panel 20 is located.
  • individually controllable valves are provided on the suction connections 152 .
  • An intermediate plate (e.g. an air-permeable sacrificial plate, not shown) may be placed between the vacuum table 15 and the wood-based panel 20 in order to protect the vacuum table 15 during processing of the wood-based panel 20 .
  • the air permeability of the intermediate sacrificial plate enables the wood-based material plate 20 to be fixed to the machine tool 10 while at the same time protecting the vacuum table 15.
  • the guide 12 is mounted such that it can be moved along a direction (shown by a horizontal double arrow in FIGS. 1A and 1B) of the machine table 11 and is connected to a tool carrier 13 .
  • a carriage 14 Arranged on the tool carrier 13 is a carriage 14 that can be moved essentially perpendicularly (in FIG. 1B with a vertical double arrow) to the guide 12 along the tool carrier 13 .
  • the carriage 14 is also mounted such that it can be moved in height relative to the machine table 11 (shown in Fig. 1 A with a vertical double arrow) and includes a drive unit (e.g. an electric spindle) with a tool holder device arranged at the head for receiving and/or supplying power to tools as well as various processing units.
  • a drive unit e.g. an electric spindle
  • a milling tool 30, a biscuit cutter 31, a horizontal drill 32 and a connecting means attachment unit 33 are shown arranged directly on the carriage 14 in a schematic manner.
  • the biscuit cutter 31 and the drill 32 are also referred to below as deepening tools 31 , 32 .
  • the drive unit on the carriage 14 can also only hold one tool and can supply it with energy via the tool holding device and deposit the tools into a tool magazine (not shown) and remove them therefrom as required.
  • the wood-based panel 20 can be machined on the machine tool 10 in an automated manner by means of the tools which are accommodated in the carriage 14 and supplied with energy, and furniture panels 40 can be produced.
  • the carriage 14 with the tool accommodated therein can reach every point of a wood-based panel on the machine table 11.
  • FIGS. 2A-5 schematically shows a wood-based panel 20 which is processed using the method according to the invention, the contours of smaller furniture panels 40 which are to be produced from the wood-based panel 20 being shown with different sizes.
  • the furniture panels 40 are usually essentially rectangular, although other shapes are also conceivable.
  • 2A shows in particular the processing of the wood-based panel 20 in a lower left area using the method according to the invention, which is described in more detail below. In the lower right area of the wood-based panel 20 in FIG.
  • a future furniture panel is shown as an example, which has indentations in the shape of a segment of a circle for receiving small Lamello® plates as connecting means.
  • a furniture panel with vertical bores in the main surface is also shown as an example, which can be drilled with a vertical drill (not shown).
  • a recess 21 (also often referred to as a “pocket”) is made in the wood-based panel 20 with the milling tool 30 at a distance from the side edges of the wood-based panel 20 .
  • two opposite narrow connecting surfaces 42 to be provided with connecting means are produced with a first separating cut TS1.
  • Illustrated in FIG. 2B is an enlarged detailed plan view in the area near the lower right corner of the furniture panel 40 of FIG. 2A. 2B shows an embodiment according to the invention, in which the first separating cut TS1 and the milling of the recess 21 in the wood-based panel 20 are carried out in one operation with a milling tool 30, which is indicated by arrows in FIG. 2B.
  • the milling tool 30 Adjacent to an area where a fastener is to be introduced into the furniture panel 40, the milling tool 30 interrupts the initially started creation of the rectilinear joint face 42 and proceeds in a loop-like manner, thereby creating the recess 21 in the wood-based panel 20. Immediately after the recess 21 is produced, the milling tool 30 moves further along the first separating cut TS1 in order to produce the remainder of the connecting narrow surface 42.
  • FIG. 2C Another embodiment in accordance with the present invention is shown in FIG. In contrast to FIG. 2B, however, the recess 41 is a groove for a biscuit.
  • the first separating cut TS1 and the milling of the recess 21 in the wood-based panel 20 are carried out in one operation with a milling tool 30 .
  • the recess 21 extends less far away from the connecting narrow surface 42, since the biscuit cutter 31 requires less space for milling the groove. This allows them Future furniture panels 40 are arranged closer together on the wood-based panel 20, whereby the utilization of the wood-based panel 20 is improved.
  • the design of the biscuit cutter 31 is simpler in this case and only a 3-axis machine is required to carry out the method.
  • a recess tool 31 , 32 is inserted into this recess 21 and a recess 41 is made in a side wall 22 of the recess 21 .
  • a round dowel is to be used as the connecting means
  • a drill 31 is used as the deepening tool and a bore is made in the side wall 22 of the recess 21 .
  • a flat dowel is to be used as the connecting means
  • a flat dowel cutter 32 is used as the deepening tool and a groove is made in the side wall 22 of the recess 21 .
  • the interface 311 , 321 of the deepening tool 31 , 32 for connection to the machine tool 10 is shown in FIG. 3 .
  • the interface 311, 321 of the deepening tool 31, 32 is used on the one hand to receive the deepening tool 31, 32 in the tool receiving device (e.g. in an HSK chuck) on the drive unit of the slide and on the other hand to receive energy from the drive unit (e.g. an electro-spindle). Furthermore, the interface 311, 321 allows the carriage to receive only one tool and supply it with energy and to deposit the tools in a tool magazine (not shown) and remove them therefrom as required.
  • the method according to the invention also includes the attachment of a connecting means in the depression 41, which is described in more detail below with reference to the schematic side view of the wood-based panel shown in FIG. 4 during the attachment step.
  • the attaching step of attaching the fastener takes place on the same machine tool 10, thereby eliminating the need for a separate fastener driving machine and thus the additional manpower and time required to transport the furniture panels 40 to such a machine.
  • the attachment step of attaching the connecting means takes place after the first partial step, which exposes two opposite narrow connecting surfaces 42 of the furniture board 40 to be provided with connecting means.
  • the fastener attachment unit 33 is received via an interface 331 in the tool receiving device (eg in an HSK chuck) of the carriage and via this receives power from the drive unit (eg an electrospindle).
  • the connector attaching unit 33 is moved to a predetermined position in the recess 21 .
  • the connecting means 50 to be driven in are initially in a magazine 332 integrated in the connecting means--to-bringing unit 33 and are removed from the magazine as required 332 provided. If a hole is made as a recess 41 in the side wall 22 of the recess 21, a round dowel is used as the connecting means 50. If a groove is made as a recess 41 in the side wall 22 of the recess 21, a flat dowel is used as the connecting means 50.
  • the connecting means attachment unit 33 also includes a liquid application device (not shown in Fig. 4) with which the at least one liquid (e.g. water and/or adhesive) contained in a tank (not shown in Fig. 4) can be removed from the tank into the depression 41 is introduced and/or applied to the connecting means 50.
  • the connecting means 50 is then driven into the depression 41 with the driving-in device (not shown), which is shown by a horizontal arrow in FIG. 4 .
  • the driving in of the connecting means 50 can take place on the one hand by holding the connecting means 50 firmly by the driving-in device and then moving the connecting means attachment unit 33 in the direction of the depression 41 .
  • the connecting means 50 is introduced into the depression 41 in which the connecting means attachment unit 33 remains in a fixed position and only the driving-in device attaches the connecting means 50 in the depression 41, for example by ejecting using a bolt that is driven by a Gear is moved out of the lanyard attachment unit 33 and can be retracted again.
  • the driving-in device is provided in a lower area of the connecting means attachment unit 33 .
  • the fastener attachment unit 33 is moved out of the recess 21 again and optionally moved into another recess 21 for attachment of another fastener 50 or placed in a tool magazine (not shown).
  • the furniture panel 40 is fixed on the one hand on the air-permeable sacrificial panel 16 by the vacuum table 15 of the fixing device.
  • the furniture panel 40 is additionally fixed via the connection to the wood-based panel 20 during the attachment step, since the second partial step and thus the production of the connection-free narrow surfaces 43 via the second separating cut TS2 according to the invention only takes place after the attachment step.
  • the future furniture panel 40 is still part of the wood-based panel 20 at this point in time because, with the exception of the narrow connecting surface 42 that has already been exposed, it is still in one piece with the wood-based panel 20.
  • the second partial step takes place, in which two opposite, connection-free narrow surfaces 43 of the furniture board 40 are produced with a second separating cut TS2 , as a result of which the wood-based material board 20 is divided into furniture boards 40 . Since the furniture panel 40 is thus still connected to the wood-based panel 20 during the attachment step, and the second sub-step through which the furniture panel first is completely detached from the larger wood-based panel, is only carried out afterwards, slipping or tipping of the furniture panel 40 is prevented by this additional fixation.
  • the directions of movement of the indenting tool 31, 32 and the fastener attaching unit 33 in a horizontal direction and a vertical direction are shown with double-headed arrows, respectively.
  • the vertical dash-dot line in Figs. 3 and 4 show the axis of rotation of the indenting tool 31, 32 and the fastener applicator unit 33, respectively.
  • the indenting tool 31, 32 and the fastener application unit 33 are rotatable about this axis.
  • the indentation tool 31 , 32 or the connecting means attachment unit 33 rotates through approximately 180° after the processing of the lower left furniture panel 40 .
  • the indenting tool 31, 32 or the connecting means attachment unit 33 can also be moved out of the recess 21 for a short time and then reinserted. Buffer distances are provided between the left connecting narrow surface of the lower middle furniture panel and the recesses 21 in FIG. 2A in order to achieve a clean and even cut edge on the left connecting narrow surface of this adjacent furniture panel.
  • FIG. 5 shows a schematic side view of an embodiment of a furniture panel 40 with a narrow connecting surface 42 inclined at an angle ⁇ and a connecting means 50 driven in orthogonally to the inclined narrow connecting surface 42, which is produced using the method according to the invention.
  • This type of furniture panels 40 is used in particular to create a miter joint in, for example, a corner joint between two furniture panels of a piece of furniture.
  • the individual method steps here are similar to those in the embodiments according to the invention described above.
  • the first separating cut is performed in such a way that the connecting narrow surface 42 of the furniture panel 40 is inclined at an angle ⁇ of approximately 45° relative to a main surface in the panel plane of the wood-based panel.
  • the angle ⁇ is ⁇ 45°, eg 60°, or that the angle ⁇ is ⁇ 45°, eg 30°.
  • the indentation 41 is introduced essentially orthogonally to the inclined narrow connecting surface 42 of the furniture panel 40 . In the mounting step of mounting the connecting means 50 in the recess 41 the connecting means 50 is therefore also driven orthogonally to the inclined connecting narrow surface 42.
  • the narrow connecting surfaces 42 are first exposed with the first separating cuts TS1 and recesses 21 are milled in predetermined areas of the wood-based panel 20 (see FIG. 2A).
  • the future furniture panel 40 initially remains connected to the wood-based panel 20 on the other two opposite sides.
  • the furniture panel 40 to be produced is thus held firmly on the wood-based panel 20 and the high forces acting during the subsequent presentation or drilling of the recesses 41 and the insertion of the connecting means 50 into the recesses 41 are prevented from displacing the furniture panel 40 from its position .
  • Only after the connecting means 50 have been inserted into the depressions 41 are the connection-free narrow surfaces 43 exposed with the second separating cuts TS2, e.g. by means of milling or sawing, and the furniture panel 40 is thus completely separated from the wood-based panel 20.
  • connection means attachment unit 33 has an interface 331.
  • the connection means attachment unit 33 can be accommodated in a tool receiving device of the carriage via this interface 331.
  • the connecting means attachment unit 33 can be moved by movements of the guide and/or the tool carrier in such a way that it reaches every recess (“pocket”) made in a wood-based panel 20 .
  • a subsequent separation of the connecting means attachment unit 33 and the tool holder after use is also possible by means of the interface 331 .
  • the interface 331 can include an HSK (hollow shank cone) interface, for example an HSK interface of type 63 F.
  • the interface 331 also serves to accommodate mechanical, pneumatic, hydraulic and/or or electrical energy from the machine tool.
  • the connecting means attachment unit 33 shown in Fig. 6 also includes a magazine 332 for receiving a plurality of connecting means 50 Magazine 332 can be accommodated.
  • the connecting means 50 are round dowels.
  • the lanyard attachment unit 33 further includes a tank 333 for accommodating at least one liquid such as water and/or glue.
  • the tank 333 is arranged directly on the connecting means attachment unit 33 .
  • the tank 333 is not attached directly to the connecting means attachment unit 33, but is arranged spatially separately from it (eg on the carriage 14) and is connected to the connecting means attachment unit 33 via a hydraulic interface.
  • a liquid application device 334 and a driving-in device 335 are arranged in a lower area of the connecting means attachment unit 33 .
  • the liquid contained in the tank 333 is introduced into the recess and/or applied to the connecting means 50 with the liquid application device 334 .
  • the liquid application device 334 can comprise a nozzle in the area most downstream, with which the liquid is discharged.
  • the connecting means 50 is driven into the depression with the driving-in device.
  • the fixing device is a vacuum table 15 .
  • the vacuum table 15 can be controlled (e.g. switched on, off and pressure-controlled) via a central electrical control unit, so that the machining process can be automated.
  • the fixing device can also be other systems for fixing the wood-based panel 20 to the machine table 11 . These can be mechanical clamps, for example.
  • connecting means 50 described herein can consist of wood, for example. However, it is also conceivable that connecting means 50 made of plastic or metal, for example, are used.
  • the machine tool 10 only includes a drive unit (e.g. an electrospindle) for supplying power to tools.
  • a drive unit e.g. an electrospindle
  • several electric spindles are provided and several tools can be operated simultaneously.
  • “Furniture panels” within the meaning of the invention are any wooden panels that are to be obtained from a wood-based panel and equipped with fasteners to produce a wooden structure.
  • this step is also carried out at the beginning of the method according to the invention.
  • the outer contours of the furniture panels are cut out of the wood-based panel.
  • the furniture panels are then detached from the wood-based panel and fixed on the machine table.
  • the process steps according to the invention described above are then carried out in order to produce the finished furniture panels.
  • connection means are attached to two opposite narrow surfaces.
  • the invention also allows the attachment of connecting means to two or more narrow surfaces adjoining one another.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Furniture Connections (AREA)

Abstract

L'invention concerne un procédé pour usiner un panneau de bois (20) au moyen d'une machine-outil (10), comprenant les étapes suivantes consistant à : introduire une découpe (21) dans le panneau de bois (20) à une certaine distance des bords latéraux du panneau de bois (20) ; insérer un outil d'évidement (31, 32) dans la découpe (21) ; introduire une encoche (41) dans une paroi latérale (22) de la découpe (21) au moyen de l'outil d'évidement (31, 32) ; et diviser le panneau de bois (20) en panneaux de meuble (40). Le procédé est caractérisé en ce que l'étape consistant à diviser le panneau de bois (20) en panneaux de meubles (40) comprend une première sous-étape et une seconde sous-étape, la première sous-étape consistant à introduire au moins une première découpe de séparation (TS1) dans le panneau de bois (20), ladite première découpe de séparation produisant une surface étroite de liaison (42) d'un panneau de meuble (40), ladite surface étroite de liaison étant destinée à être dotée d'un élément de liaison (50), et la seconde sous-étape consistant à introduire au moins une seconde coupe de séparation (TS2) dans le panneau de bois (20), ladite seconde découpe de séparation produisant une surface étroite sans liaison (43) du panneau de meuble (40). Le procédé comprend également une étape de montage consistant à monter l'élément de liaison (50) dans l'évidement (41), l'étape de montage étant réalisée entre la première sous-étape et la seconde sous-étape. L'invention se rapporte également à une unité de montage d'élément de liaison (33) à utiliser dans un procédé de ce type et à une machine-outil (10), qui comprend une unité de montage d'élément de liaison (33) de ce type et est appropriée pour la mise en œuvre du procédé selon l'invention.
PCT/EP2021/071583 2020-09-17 2021-08-02 Procédé et machine-outil pour usiner un panneau de bois WO2022058082A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21755421.1A EP4103373B1 (fr) 2020-09-17 2021-08-02 Procédé et machine-outil pour usiner un panneau de bois

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020124242.5A DE102020124242A1 (de) 2020-09-17 2020-09-17 Verfahren und Werkzeugmaschine zur Bearbeitung einer Holzwerkstoffplatte
DE102020124242.5 2020-09-17

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Publication Number Publication Date
WO2022058082A1 true WO2022058082A1 (fr) 2022-03-24

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DE (1) DE102020124242A1 (fr)
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012110453B4 (de) 2012-10-31 2015-12-10 Bernd Butzer Verfahren und Werkzeugmaschine zur Bearbeitung von Holzwerkstoffplatten

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6603750U (de) 1966-02-16 1969-11-06 Nottmeyer Maschf Heinrich Maschine zum einbringen von duebeln in eine vorgebohrte platte od. dgl. werkstueck
CH497948A (de) 1967-11-02 1970-10-31 Bilek Anton Tragbare, pneumatische Holzdübeleinschiessvorrichtung
DE10137839C5 (de) * 2001-08-02 2012-06-21 Michael Weinig Ag Maschine zum Bearbeiten von Werkstücken aus Holz, Kunststoff und dergleichen
DE102004016117A1 (de) 2003-04-01 2004-10-21 Scm Group S.P.A. Verfahren zur Bearbeitung von Holzteilen an einer Maschine mit Doppelstation
DE202007008227U1 (de) * 2007-06-12 2007-08-30 Meyenburger Möbel GmbH Fertigungslinie zur Herstellung von Einzelteilen für Möbel
DE102008050416B4 (de) 2008-10-04 2010-05-20 Abemaka Gmbh Bearbeitungszentrum zum Bearbeiten von wabenartigen Leichtbauplatten

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012110453B4 (de) 2012-10-31 2015-12-10 Bernd Butzer Verfahren und Werkzeugmaschine zur Bearbeitung von Holzwerkstoffplatten

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EP4103373A1 (fr) 2022-12-21
DE102020124242A1 (de) 2022-03-17
EP4103373C0 (fr) 2023-10-25
EP4103373B1 (fr) 2023-10-25

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