A chain miller for milling pocket recesses in furniture panels to accommodate furniture fittings

Abstract

The present invention relates to a chain milling apparatus (1) for milling bag-shaped grooves (2) in furniture panels (3) to accommodate furniture fittings (4), comprising at least one chain milling machine (5) having at least one linear guide (6) and at least one height-adjustable worktable (7), the at least one height-adjustable worktable (7) comprising a stop (8), a mating stop (9) having a support surface (10) for arranging the furniture panel (3) on the support surface (10), the support surface (10) being arranged substantially parallel to the stop (8), and at least one adjusting device (11) by means of which the distance (12) between the stop (8) and the mating stop (9) can be adjusted, the at least one chain milling machine (5) being able to partially mill along, particularly manually or automatically. The at least one linear guide (6) moves, particularly in a direction extending perpendicular to the end face (13) of the furniture board (3), to mill out a bag-shaped groove (2), and the at least one adjusting device (11) includes at least two adjusting elements (14, 15) and at least one synchronizing device (16), the at least two adjusting elements (14, 15) being kinetically coupled to each other by the at least one synchronizing device (16) such that when adjusting at least one of the at least two adjusting elements (14), at least one other adjusting element (15) of the at least two adjusting elements (14, 15) moves together simultaneously, particularly synchronously, particularly rotating together, thereby adjusting the gap (12) between the stop (8) and the mating stop (9).

Description

Technical Field

[0001] This invention relates to a chain milling machine for milling pocket-shaped grooves in furniture panels. The invention also relates to a method for adjusting the height of a height-adjustable worktable, particularly the worktable of such a chain milling machine. Furthermore, the invention relates to a method for creating at least one pocket-shaped groove in at least one furniture panel using at least one such chain milling machine, and a method for creating at least one wall for a furniture body. Background Technology

[0002] WO 2020 / 232484 A1 illustrates a furniture actuator for moving a furniture cover, wherein the housing of the furniture actuator is configured to be received within a groove in the furniture panel in the assembled state. The groove is formed in the form of a blind hole, wherein the housing of the furniture actuator is completely received within the blind hole and completely within the material thickness of the furniture panel in the assembled state. In this way, the furniture actuator can be compactly arranged, with no restriction on the available space inside the furniture body. Because the furniture actuator is almost invisible in the assembled state, the overall visual impression is also improved. For example, a visually appealing, uniform, and complete surface characteristic of the furniture panel can be achieved on both the inner and outer sides. However, manufacturing grooves in furniture panels is associated with several challenges. Summary of the Invention

[0003] Therefore, the object of the present invention is to simplify the manufacturing of grooves in furniture panels, especially to ensure the precise orientation of the grooves relative to the furniture panel, and / or the orientation can be flexibly and / or user-friendly adjusted to meet the requirements of the furniture panel.

[0004] This objective is achieved by a chain milling machine used to mill bag-shaped grooves in furniture panels to accommodate furniture fittings.

[0005] Therefore, according to the invention, the at least one chain milling machine is capable—partially manually or automatically—of moving along the at least one linear guide, particularly in a direction perpendicular to the end face of the furniture board, to mill a bag-shaped groove, and the at least one adjusting device comprises at least two adjusting elements and at least one synchronizing device, wherein the at least two adjusting elements are kinetically coupled to each other through the at least one synchronizing device, such that when adjusting at least one of the at least two adjusting elements, at least one other of the at least two adjusting elements moves simultaneously, particularly synchronously, particularly rotates together, thereby adjusting the distance between the stop and the mating stop.

[0006] This allows for the introduction of pocket-shaped grooves into furniture panels via the end face of a chain milling machine. This enables precise adjustment of the remaining wall thickness around the pocket-shaped grooves, allowing for the milling of aesthetically pleasing and / or symmetrical grooves into the furniture panel, for example. Furthermore, it also allows for the creation of grooves with a specified wall thickness that are asymmetrically positioned on the center plane of the furniture panel.

[0007] This synchronization device ensures that the user can easily adjust the worktable to accommodate the groove requirements using a single-handed movement. Because installing grooves at an angle and / or with inaccuracy, especially in thin furniture panels, presents serious disadvantages not only visually but also in terms of the operation of the furniture actuators arranged therein—particularly an increased risk of furniture panel breakage, for example—an additional positive effect is that the spacing can be moved parallel and with high precision via the coupled movement of the adjusting elements. According to the invention, it is unnecessary to adjust in two separate positions for parallel movement of the stops and / or engagement stops.

[0008] Furthermore, it can be flexibly and comfortably matched with chain milling equipment for furniture panels of different wall thicknesses, where the positioning of the grooves can be easily, quickly and accurately adapted to the requirements of the furniture panels.

[0009] As mentioned at the beginning, a method for adjusting the height of a height-adjustable worktable, particularly the worktable of such a chain milling machine, is also claimed, characterized by the following method steps:

[0010] - Provide a stop and a mating stop at the first spacing.

[0011] - The first pitch is changed by an adjusting element of at least one adjusting device, wherein the adjusting element is kinematically coupled to at least one other adjusting element via at least one synchronizing device.

[0012] - While changing the spacing through the adjusting element, at least one other adjusting element moves together, causing the first spacing to transition to a second spacing different from the first spacing.

[0013] - Optionally, the stop and the mating stop are oriented parallel to each other, especially at any time, as the first pitch transitions to the second pitch.

[0014] As mentioned at the beginning, a method for creating at least one bag-shaped groove in at least one furniture board by means of at least one such chain milling device is also claimed, characterized in particular by the following method steps performed in chronological order:

[0015] - The distance between the stop and the mating stop is adjusted by the at least one adjusting device.

[0016] -The at least one furniture panel is placed against the support surface of the mating stop and optionally secured to the mating stop by a clamping device.

[0017] - To move the at least one chain milling machine, in particular manually or automatically, in part along at least one linear guide in a direction extending perpendicular to the end face of the furniture panel, wherein the at least one bag-shaped groove is milled into the furniture panel from the end face of the furniture panel.

[0018] As mentioned at the beginning, a method for manufacturing at least one wall for a furniture body is also claimed, which includes the method for manufacturing at least one pocket-shaped recess, wherein, in a further method step, at least one furniture fitting for movably supporting furniture components is arranged in the at least one pocket-shaped recess.

[0019] A particularly preferred arrangement system is one consisting of a chain milling machine and furniture panels.

[0020] According to an advantageous embodiment of the invention, the mating stop can move substantially parallel to the stop or the stop can move relative to the mating stop when adjusted by the at least one adjusting device, preferably exactly one adjusting element. Preferably, the stop and / or the mating stop can move parallel to each other at any time.

[0021] The at least one adjusting device eliminates the following method step, in which the stop or mating stop must be switched to parallel orientation via two tilting movements.

[0022] Advantageously, the at least one adjusting element is configured as a fixing device, preferably a lead screw, particularly preferably a self-locking lead screw, wherein the fixing device has threads and / or is engaged in threads, preferably engaged in threads of a threaded bushing arranged in the stop member, and preferably, the at least one fixing device includes at least one tool receiving portion.

[0023] Since it is an adjusting element of a fixed device, there is no need for expensive instrument rods to make the stop move parallel to the mating stop, and it can be operated, for example, with a conventional screwdriver, to change the pitch as desired.

[0024] It has proven advantageous that the at least one synchronization device is arranged on at least two regulating elements for motion coupling and / or is configured in the form of a chain or belt.

[0025] The number of adjusting elements is usually arbitrary. Preferably, at least one additional adjusting element is provided, and more preferably three additional adjusting elements are provided. The fixing devices, as adjusting elements, enable the defined spacing between the stop and the mating stop, wherein the fixing devices (lead screw, screw or the like) are preferably spatially separated from each other and are kinematically coupled to each other by independent synchronizing devices (e.g., chains) arranged on or in contact with the fixing devices.

[0026] According to an advantageous embodiment of the invention, at least one gear is arranged on the at least two adjusting elements and the at least one synchronizing device, wherein the at least two adjusting elements can move simultaneously by the movement of the at least one synchronizing device to change the distance between the stop and the mating stop.

[0027] The rotation of an adjusting element can be particularly advantageously transmitted to another adjusting element via at least one gear—for example, via a synchronizing device in the form of a chain—so that the adjusting elements can move simultaneously to adjust the pitch, the synchronizing device being engaged in at least one tooth connected to the adjusting element.

[0028] It has proven advantageous to provide at least one tensioning device arranged on at least one synchronizing device, preferably wherein the at least one tensioning device includes an adjusting device by means of which the tension of the at least one synchronizing device can be adjusted.

[0029] The at least one tensioning device ensures that other adjusting elements are reliably guided together by the adjusting element provided for changing the spacing, wherein the adjusting device can reduce the time spent on maintenance work.

[0030] An advantageous variation is that at least one guiding device, preferably configured as a guide pin, is arranged on the stop and / or the mating stop.

[0031] The at least one guiding device prevents or prohibits undesirable tilting of the stop relative to the mating stop when the spacing changes.

[0032] Particularly preferred is that at least one spacer element, preferably a spring-loaded bolt, is arranged on the stop and / or the mating stop.

[0033] For example, thread clearance relative to the at least one adjusting element can be compensated by applying a force using at least one spacer element. For example, the spacer element can utilize spring force or another force storage device to press or push the mating stop and the stop apart to eliminate clearance in the thread for precise adjustment of the pitch.

[0034] In one embodiment of the invention, exactly four adjustment elements are provided, wherein the four adjustment elements are substantially arranged on an imaginary rectangle.

[0035] This arrangement of the adjusting elements has been shown to be particularly advantageous for parallel movement; for example, a triangular arrangement of the adjusting elements can also be considered.

[0036] According to a preferred embodiment of the present invention, at least one scale is provided, preferably arranged on the mating stop and / or the stop, and the height-adjustable worktable includes at least one indicating device, the distance between the stop and the mating stop can be read by the relative position of the at least one indicating device with respect to the at least one scale, preferably, the at least one scale is arranged on the side of the mating stop and / or the stop.

[0037] This allows users of milling equipment to instantly recognize the current spacing and quickly identify improper adjustments to the spacing of specific furniture panels.

[0038] It has proven advantageous that the at least one indicating device is rotatably fixed to the mating stop and / or rotatably supported on the stop, or vice versa. Preferably, the at least one indicating device is constructed substantially in a plate-like manner, and is particularly preferably equipped with a pointer.

[0039] The rotatable support is particularly advantageous in transmitting the movement of the mating stop or stop to the indicating device, wherein the plate-shaped indicating device enables the possibility of compact visualization.

[0040] Furthermore, it is preferred to provide at least one additional scale, preferably arranged on the support surface of the mating stop, through which the distance between the stop and the mating stop can be read by the relative position of the at least one additional indicator relative to the at least one additional scale.

[0041] This allows users to have (especially spatially) separate indicators, for example, with different levels of precision, in order to precisely adjust the spacing.

[0042] According to a preferred embodiment, the at least one additional scale may be arranged in the region of and / or around the at least one adjustment element, and / or the at least one additional indicating device may be constituted by at least one mark on the at least one adjustment element.

[0043] Fine-tuning of the spacing can be achieved, for example, by means of a mark on the at least one adjusting element, without the need for a separate indicating device, and by means of rotation of the fixing device via the relative position of the mark with respect to a scale arranged around the fixing device.

[0044] This scale can be matched with the pitch of the fixing device, so that the rotation angle of the fixing device directly corresponds to the longitudinal pitch change and can be indicated by the scale.

[0045] In another embodiment, it may be specified that the at least one indicating device and the at least one additional indicating device are preferably indirectly coupled through a mating stop and / or a stop movement.

[0046] This ensures that the two indicating devices indicate the same spacing (with different precision if necessary), and optionally, a scale that is more important for the current activity can be used.

[0047] According to an advantageous embodiment of the invention, the spacing can be adjusted and / or read by the at least one adjustment device within a range of 10 mm to 40 mm, preferably within a range of 15 mm to 25 mm, and / or with an accuracy within a range of 0.01 mm to 1 mm, preferably within a range of 0.03 mm to 0.1 mm.

[0048] According to an advantageous embodiment of the invention, at least one indicator and at least one scale and / or at least one additional indicator and at least one additional scale are provided, wherein coarse adjustment of the spacing can be read by the relative position of the at least one indicator relative to the at least one scale, and / or fine adjustment of the spacing can be read and / or adjusted by the relative position of the at least one additional indicator relative to the at least one additional scale. Preferably, the coarse and fine adjustments of the spacing can be adjusted by the same adjustment element.

[0049] Generally, coarse and fine adjustments do not require separate adjustment elements. For example, the plate thickness can be adjusted by the display on the first scale, and after trial milling, the desired wall thickness and / or groove can be precisely adjusted by the display on the second scale (with the same adjustment element).

[0050] Advantageously, the furniture panel can be pressed onto the mating stop by at least one clamping device. Preferably, the clamping device includes an operating element, a tensioning element, and at least one pressing element. The furniture panel can be pressed onto the tensioning element and the mating stop by operating the operating element, preferably sequentially, by the at least one pressing element.

[0051] The at least one clamping device prevents undesirable slippage of the furniture panel during groove formation, and clamping in two spatial directions can be achieved by a single hand movement. Particularly preferred are two pressing elements that sequentially, first in the direction of a mating stop plane, and then orthogonally to that mating stop plane, secure the furniture panel through two moving sections of exactly one actuating element.

[0052] It has been proven advantageous that the at least one chain milling machine has at least one chain guide on which at least one milling chain is arranged circumferentially, the milling chain having a plurality of links hinged to each other and hard metal teeth arranged on the links.

[0053] In other words, a milling chain for creating grooves is provided, guided in a circular manner, wherein the milling chain includes multiple hard metal teeth. Due to the hard metal teeth, the milling chain maintains its wear resistance without regrinding, reducing maintenance and increasing productivity.

[0054] The precise movement of the chain milling machine can be achieved through a linear guide, which can move into and out of the furniture board in a straight line and is guided parallel to the two outer sides of the furniture board.

[0055] According to an advantageous embodiment of the invention, the carbide teeth of the at least one chain milling machine have two cutting edges, wherein the spacing between the cutting edges of the carbide teeth defines the width of the bag-shaped groove to be milled, preferably the spacing is 10.0 mm to 15.0 mm, and particularly preferably the spacing is 12.5 mm.

[0056] It has proven advantageous that the at least one chain milling machine is capable of moving along the at least one linear guide in a stroke greater than 200 mm, preferably greater than 250 mm, wherein the stroke of the at least one chain milling machine defines the depth of the bag-shaped groove to be milled.

[0057] An advantageous variation is provided with at least one lifting device, by which the at least one chain milling machine can move along the at least one linear guide at a lifting speed of 10 mm / s to 20 mm / s, preferably 15 mm / s, and preferably the at least one lifting device has at least one pneumatic actuator.

[0058] Particularly preferably, the chain milling machine has at least one preferably electrically powered chain drive for moving the at least one milling chain around the at least one chain guide, and / or the at least one chain milling machine is arranged directly, i.e. without liquid lubrication, in a ring on the at least one chain guide.

[0059] In one embodiment of the invention, when adjusting the second pitch by means of an adjusting element, the current pitch can be read during or after the relative movement of the stop and / or the mating stop by means of the relative position of at least one indicating device relative to at least one scale and / or the relative position of at least one additional indicating device relative to at least one additional scale, and / or the coarse adjustment of the pitch can be read by means of the relative position of the at least one indicating device relative to the at least one scale, and / or the fine adjustment of the pitch can be read by means of the relative position of the at least one additional indicating device relative to the at least one additional scale. Preferably, the coarse and fine adjustments of the pitch are made by the same adjusting element.

[0060] Therefore, the adjusting element has multiple functions: the adjusting element ensures that the pitch changes when the mating stop and / or the stop moves in parallel, while allowing the user of the chain milling equipment to read the pitch directly on the adjusting element or through spatially separated indicators.

[0061] According to a preferred embodiment of the invention, in a subsequent method step, the outer wall thickness is measured in the region of the at least one pocket-shaped groove, the spacing is readjusted if necessary by the at least one adjusting device, and at least one additional furniture panel is abutted against the support surface of the mating stop, and at least one pocket-shaped groove is introduced into the at least one additional furniture panel by the at least one chain milling machine. Preferably, the spacing is readjusted by at least one additional indicating device and / or at least one additional scale.

[0062] Trial milling can be used to measure the orientation of grooves and / or the remaining wall thickness of furniture panels, and, if necessary, to recalibrate the height-adjustable worktable, enabling chain milling equipment to, for example, manufacture grooves for mass production. It can also be particularly effective and / or efficient in accurately placing grooves with varying wall thicknesses into furniture panels. Attached Figure Description

[0063] Other details and advantages of the invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. In the drawings:

[0064] Figures 1a-1d A schematic perspective view of a furniture panel is shown, in which bag-shaped grooves are gradually milled at the ends by a chain milling machine so that furniture drives can be subsequently integrated into the grooves;

[0065] Figure 2 An exploded view of a chain milling apparatus according to a particularly preferred embodiment of the invention is shown.

[0066] Figure 3 Showing according to Figure 2A perspective view of the chain milling equipment in the installed state according to an embodiment;

[0067] Figure 4 Shown in side view and perspective view according to Figure 3 A partial cross-sectional view of the height-adjustable worktable of a chain milling machine, which has a first distance between the stop and the mating stop.

[0068] Figure 5 Shown in side view and perspective view according to Figure 4 A partial cross-sectional view of the height-adjustable worktable, in which the spacing has been changed;

[0069] Figure 6 Showing according to Figure 4 Exploded view and perspective view of the components of the height-adjustable worktable in the assembled state;

[0070] Figure 7 Showing according to Figure 4 Exploded view of a height-adjustable worktable without stops;

[0071] Figure 8 Showing according to Figure 4 A perspective view of a height-adjustable worktable without stops during pitch changes.

[0072] Figure 9 Showing according to Figure 4 The components of a height-adjustable worktable, showing a side view and enlarged detail view of the scale and indicator devices at the first pitch;

[0073] Figures 10a-10c Showing according to Figure 4 The components of the height-adjustable worktable, showing a side view and enlarged detailed partial view of the scale and indicator at the second pitch, and a top view of two detailed partial views of the additional indicator and additional scale.

[0074] Figure 11 Showing what is exposed in the view, and according to Figure 4 A perspective view and a side view of a clamping device for fixing furniture panels to a height-adjustable worktable, connected to a stop member;

[0075] Figures 12a-12c A perspective view of an alternative adjustment device according to a preferred embodiment is shown, which has a mating stop or does not have a mating stop in two different adjustment positions;

[0076] Figures 13a-13b A perspective view of two alternative adjustment elements according to a preferred embodiment is shown. Detailed Implementation

[0077] Figures 1a to 1d A method for creating a pocket-shaped groove 2 in a furniture panel 3 by means of a chain milling machine 1 and a method for creating a wall 48 for the main body of furniture are illustrated, wherein furniture fittings 4 for movably supporting furniture components are arranged in the pocket-shaped groove 2 in subsequent method steps.

[0078] Figure 2 The chain milling equipment 1 is shown in a disassembled state, wherein the chain milling equipment 1 for milling bag-shaped grooves 2 in furniture panels 3 to accommodate furniture fittings 4 includes a chain milling machine 5 having two linear guides 6 and a height-adjustable worktable 7.

[0079] The chain milling machine 5 has a chain guide 38 on which a milling chain 39 is arranged around the chain guide. The milling chain has a plurality of links 40 that are hinged to each other and hard metal teeth 41 arranged on the links 40.

[0080] The carbide teeth 41 of the chain milling machine 5 have two cutting edges 42, wherein the spacing between the cutting edges 42 of the carbide teeth 41 defines the width of the bag-shaped groove 2 to be milled, wherein the spacing is 12.5 mm.

[0081] The chain milling machine 5 can travel a stroke of more than 250 mm along the two linear guides 6, wherein the stroke of the chain milling machine 5 defines the depth of the bag-shaped groove 2 to be milled. The number of linear guides 6 is usually arbitrary; for example, only one linear guide 6 may be provided.

[0082] A lifting device 43 is provided, which enables the chain milling machine 5 to move along the two linear guides 6 at a lifting speed between 10 mm / s and 20 mm / s. The lifting device 43 has a pneumatic drive 44.

[0083] The chain milling machine 1 has an electric chain drive 45 for moving the milling chain 39 around the chain guide 38. The chain milling machine 5 is arranged directly, i.e. without liquid lubrication, around the chain guide 38.

[0084] Figure 3 The diagram shows a chain milling machine 1 in an assembled state of components, wherein the height-adjustable worktable 7 includes a stop 8, a mating stop 9 having a support surface 10 for arranging furniture panels 3 on the support surface 10, and an adjustment device 11, by which a first gap 12 between the stop 8 and the mating stop 9 can be adjusted. The support surface 10 is arranged substantially parallel to the stop 8.

[0085] The chain milling machine 5 can move manually or automatically along two linear guides 6 in a direction extending perpendicular to the end face 13 of the furniture board 3 to mill out bag-shaped grooves 2.

[0086] Figure 4 A portion of the height-adjustable worktable 7 is shown, in which two indicators for displaying the first spacing 12 are visible. Stops 8 and mating stops 9 are arranged parallel to each other at the first spacing 12, wherein the stops 8 and mating stops 9 exist in the form of plates.

[0087] The worktable 7 of the chain milling machine 1 includes a scale 27 arranged on a mating stop 9, wherein the scale 27 is arranged on the side 29 of the mating stop 9. The scale 27 may also typically be positioned on the side 29 of the stop. The worktable 7 includes an indicator 28, the relative position of which with respect to the scale 27 allows reading of a first gap 12 (for coarse adjustment) between the stop 8 and the mating stop 9.

[0088] The indicator 28 is rotatably fixed to the mating stop 9 by a threaded connection and is rotatably supported on the stop 8 by a pin embedded in the groove of the stop 28, wherein the indicator 28 is plate-shaped and has a pointer 30.

[0089] The worktable 7 includes an additional scale 31 arranged on the support surface 10 of the mating stop 9, and the first gap 12 between the stop 8 and the mating stop 9 can be read by the relative position of the additional indicator 32 with respect to the additional scale 31 (for fine adjustment).

[0090] The additional scale 31 is arranged in the area and around the adjustment element 14. The additional indicator 32 is formed by a mark 33 on the adjustment element 14, thereby enabling not only the adjustment of the first pitch 12, but also the indication of the first pitch 12 by the adjustment element 14.

[0091] Indicator 28 and the other indicator 32 are indirectly coupled by the movement of mating stops 9 and 8. If the first pitch 12 changes, the change in pitch is transmitted to indicator 28 to make it visible.

[0092] The first pitch 12 can be adjusted within the range of 13 mm to 28 mm by means of the adjustment device 11. The scale 27 has marks spaced equidistantly at 3 mm intervals between 16 mm and 25 mm. The adjustment device 11 can be adjusted and read with an accuracy of 0.03 mm to 0.05 mm. The additional scale 31 has marks spaced at 0.1 mm intervals, which are arranged in a circle around the adjustment element 14.

[0093] Figure 5The worktable 7 is shown, which has relative to Figure 4 The second spacing 46 is changed, so that the chain milling machine 5 is also installed in the furniture board 3 with a changed spacing relative to the top surface of the furniture board 3. The adjusting element 14 exists in the form of a fixing device 17 as a self-locking screw, the fixing device 17 having threads (not visible in the figure for clarity) and being engaged in the threads of a threaded bushing arranged in the stop 8.

[0094] The fixing device 17 includes a tool receiving portion 20, and the second gap 46 is generated by rotating the adjusting element 14 via a screwdriver in the tool receiving portion 20, thereby moving the stop 8 toward the mating stop 9. Typically, the mating stop 9 can also be moved toward the stop 8, or the two components can be moved toward each other. Similar considerations apply to increasing the gap. For example, the adjusting element 14 can be fixed in the mating stop 9 and act via threads in the stop 8, or fixed in the stop 8 and act via threads in the mating stop 9. Translational movement is achieved through the pitch of the thread.

[0095] The stop 8 and the mating stop 9 are parallel, and the stop 8 moves parallel to the mating stop 9 when adjusted by the adjusting device 11—by operating exactly one adjusting element 14 along with three other adjusting elements 15 motion-coupled. The stop 8 and the mating stop 9 can move parallel to each other at any time.

[0096] Figure 6 An adjustment device 11 is shown, comprising four adjustment elements 14, 15 and a synchronization device 16, wherein the four adjustment elements 14, 15 are motionally coupled to each other through the synchronization device 16, such that when exactly one of the four adjustment elements 14 is adjusted, the other three adjustment elements 15 move or rotate together simultaneously and synchronously, thereby allowing the first gap 12 between the stop 8 and the mating stop 9 to be continuously adjusted.

[0097] The synchronizing device 16 is disposed on four adjusting elements 14, 15 for motion coupling and exists in the form of a chain 21. However, the synchronizing device can also typically be constructed as a belt or the like.

[0098] The chain milling machine 1 is provided with a tensioning device 23, which is arranged on the synchronization device 16. The tensioning device 23 includes an adjustment device 24, which can be used to adjust the tension of the synchronization device 16.

[0099] The worktable 7 includes four gears 22 arranged on four adjusting elements 14, 15 and a synchronizing device 16. Through the movement of the synchronizing device 16—achieved via the adjusting elements 14—the other three adjusting elements 15 can move simultaneously to change the first gap 12 between the stop 8 and the mating stop 9. The gears 22 can be connected to the adjusting elements 14, 15, for example, by material locking, form locking, or press fitting, wherein the gears 22 rotate during the longitudinal movement of the synchronizing device 16.

[0100] Figure 7 The components of the worktable 7 are shown, wherein four guide devices 25 are configured as guide bolts arranged on the stop 8 and the mating stop 9. The guide devices 25 are also spacers 26 in the form of spring-loaded bolts, which are arranged on the stop 8 and the mating stop 9. The number of guide devices 25 and spacers 26 is generally arbitrary, and it can also be specified that only spacers 26 without guide devices 25 are considered.

[0101] Four adjustment elements 14 and 15 are provided, wherein the four adjustment elements 14 and 15 are arranged on an imaginary rectangle. However, three adjustment elements 14 and 15 may also be installed in a triangular arrangement, or only two adjustment elements 14 and 15 or more than four adjustment elements 14 and 15 may be provided.

[0102] Figure 8 The worktable 7 of the chain milling machine is shown in its installed state, wherein a support structure is provided on the side of the stop member, and a positioning auxiliary device is provided on the side of the mating stop member. The first gap 12 can be comfortably adjusted from the support surface 10 and with the furniture board 3 positioned on the support surface 10 by the adjustment device 11.

[0103] Figure 9 and 10a The only difference is that workbench 7 is in Figure 9 The first spacing between the two is 12 and in Figure 10a The second spacing 46 is adjusted by the adjusting device 11.

[0104] For example, the first spacing 12 can be adjusted by the worktable 7 of the chain milling machine 1 as follows:

[0105] - A stop 8 and a mating stop 9 are provided at a first spacing 12.

[0106] - The first pitch 12 is changed by adjusting element 14 of adjusting device 11, wherein adjusting element 14 is motion-coupled with another adjusting element 15 through synchronizing device 16.

[0107] - While the first pitch 12 is changed by the adjusting element 14, the other adjusting element 15 is moved together, so that the first pitch 12 transitions to a second pitch 46 that is different from the first pitch 12.

[0108] - When transitioning from the first spacing 12 to the second spacing 46, the stop 8 and the mating stop 9 remain parallel to each other at all times.

[0109] When adjusting the second pitch 46 via the adjusting element 14, the current second pitch 46 can be read during or after the relative movement of the stop 8 and / or the mating stop 9 by the relative position of the indicating device 28 relative to the scale 27 and / or the relative position of the additional indicating device 32 relative to the additional scale 31. The coarse adjustment of the second pitch 46 can be read by the relative position of the indicating device 28 relative to the scale 27, and the fine adjustment of the second pitch 46 can be read by the relative position of the additional indicating device 32 relative to the additional scale 31. Both the coarse and fine adjustments of the second pitch 46 can be made using the same adjusting element 14.

[0110] For example, the bag-shaped groove 2 can be installed into the furniture panel 3 in the following manner:

[0111] - The first distance 12 between the stop 8 and the mating stop 9 is adjusted by the adjusting device 11.

[0112] - The furniture board 3 is placed against the support surface 10 of the mating stop 9 and fixed to the mating stop 9 by the clamping device 34.

[0113] - The chain milling machine 5 is moved manually or automatically along the linear guide 6 in a direction perpendicular to the end face 13 of the furniture board 3, where the bag-shaped groove 2 is milled into the furniture board 3 from the end face 13.

[0114] - In a subsequent method step, the outer wall thickness 47 is measured in the area of ​​the bag-shaped groove 2, the first gap 12 is readjusted by the adjusting device 11 if necessary, and another furniture board 3 is brought against the support surface 10 of the mating stop 9, and at least one bag-shaped groove 2 is introduced into the other furniture board 3 by the chain milling machine 5.

[0115] Figure 10b and Figure 10cThe fine-tuning of the second pitch 46 is shown in two adjustment states, wherein the readjustment of the second pitch 46 can be precisely achieved by rotating the adjusting element 14 via the additional indicating device 32 and the additional scale 31. The fine-tuning of the second pitch 46 can be read and adjusted by the relative position of the additional indicating device 32 with respect to the additional scale 31. Marker 33 reflects the current first pitch 12.

[0116] The coarse adjustment of the first pitch 12—for example, to prepare a workbench 7 for a specific board thickness for furniture board 3—can be read by the relative position of the indicating device 28 with respect to the scale 27. The coarse and fine adjustments of the first pitch 12 or the second pitch 46 can be adjusted by the same adjusting element 14.

[0117] Figure 11 The height-adjustable worktable 7 of the chain milling machine 1 is shown, in which the furniture panel 3 can be pressed onto the support surface 10 by a clamping device 34 on the mating stop 9. The clamping device 34 includes an operating element 35, a tensioning element 36, and two pressing elements 37, wherein the furniture panel 3 can be pressed sequentially onto the tensioning element 36 and the mating stop 9 by operating the operating element 35 via the pressing elements 37. The clamping process is carried out through two moving sections of the operating element 35, wherein the operating element 35 has a hinged connection with a dead point.

[0118] Figure 12a The diagram shows a stop 9, which has a turntable-shaped adjustment device 11 in another preferred embodiment. This adjustment device has three sections arranged circumferentially as adjustment elements 14, 15, which, along with three wedge-shaped elements (see...). Figure 12b The wedge element interacts with the turntable, causing the mating stop 9 to move parallel to the stop 8.

[0119] The fixing element located on the mating stop 9 can be used as a fixing device for the mating stop 9, but is generally not necessary. It is also conceivable that the adjusting elements 14, 15 are embedded in the wedge-shaped groove of the mating stop 9 to cause a change in the first pitch 12.

[0120] exist Figure 12b As can be seen from the above, and according to Figure 6 In different embodiments, adjusting elements 14 and 15 are material-locked to the synchronization device. Figure 6 In this context, these elements are constructed as spatially separated components.

[0121] The adjustment device 11 has an operating element in the form of a handle, wherein an indicator 28 is arranged on the handle, which is movable relative to a scale 27 positioned on a separate component of the adjustment device 11. The indicator 28 includes a covered pin that is inserted into a groove in the scale 27 for adjusting the first pitch 12 with an accuracy of 0.1 mm.

[0122] Figure 12c The change in position of the adjusting device 11 is shown, wherein the adjusting elements 14 and 15 move along an inclined plane so as to move the mating stop 9 away from the stop 8 to change the spacing.

[0123] Figure 13a An alternative adjusting element 14 is shown, which is kinetically coupled to another (preferably of the same type) adjusting element 15 via a synchronizing device 16 (not shown). Adjusting elements 14 and 15 slide along the inclined surface of the elongated hole to change the first gap 12. Guide devices 25, provided for mating with the stop 9, are shown in dashed lines; these guide devices are generally not necessary and can also function as fixing devices, for example. The stop point of the adjusting element 14 can also serve as the guide device 25.

[0124] When the adjusting elements 14 and 15 move, the cooperating stop 9 moves laterally relative to the stop 8. The movement of the adjusting element 14 is achieved by a linear actuator—preferably electrically driven. Typically, the additional adjusting element 15 can also have a linear actuator, which is electronically synchronized, for example, with the linear actuator of the adjusting element 14—for example, via an electronic control device as a synchronization device 16. According to... Figure 6 The synchronizing device 16 is mechanically constructed, and the mechanical synchronizing device 16, for example in the form of a rod, can also cause the movement of the adjusting elements 14, 15 shown to be coupled.

[0125] Figure 13b Another embodiment of the adjusting element 14 is shown, wherein the adjusting element 14 of the adjusting device 11 is kinetically coupled to another (preferably of the same type) adjusting element 15 via a synchronizing device 16 (not shown). Lateral fixing of the mating stop 9 can be provided, for example, by a guide device 25 or a fixing device in the mating stop 9. The adjusting element 14 contacts a groove with an inclined surface, which serves as the guide device 25.

Claims

1. A chain milling machine (1) for milling bag-shaped grooves (2) in a furniture board (3) to accommodate furniture fittings (4), the chain milling machine comprising: At least one chain milling machine (5) having at least one linear guide (6) and at least one height-adjustable worktable (7), wherein the at least one height-adjustable worktable (7) comprises: - Stop (8) - A mating stop (9) having a support surface (10) for arranging the furniture panel (3) on the support surface (10), wherein the support surface (10) is arranged substantially parallel to the stop (8), and - At least one adjusting device (11) by means of which the first gap (12) between the stop (8) and the mating stop (9) can be adjusted. The at least one chain milling machine (5) is characterized in that it is partially movable along the at least one linear guide (6) for milling out a bag-shaped groove (2), and the at least one adjusting device (11) includes at least two adjusting elements (14, 15) and at least one synchronizing device (16), wherein the at least two adjusting elements (14, 15) are kinetically coupled to each other through the at least one synchronizing device (16) such that when adjusting at least one of the at least two adjusting elements (14), at least one other adjusting element (15) of the at least two adjusting elements (14, 15) simultaneously moves and / or rotates together synchronously, thereby adjusting the first gap (12) between the stop (8) and the mating stop (9).

2. The chain milling equipment (1) according to claim 1, wherein, The at least one chain milling machine (5) is capable of moving manually or automatically in part along the at least one linear guide (6) in a direction extending perpendicular to the end face (13) of the furniture board (3).

3. The chain milling equipment (1) according to claim 1, wherein, When adjusted by the at least one adjusting device (11), the mating stop (9) can move substantially parallel to the stop (8) or the stop can move substantially parallel to the mating stop.

4. The chain milling equipment (1) according to claim 1, wherein, When adjusted by just one adjusting element (14), the mating stop (9) can move substantially parallel to the stop (8) or the stop can move substantially parallel to the mating stop.

5. The chain milling equipment (1) according to claim 3, wherein, The stop (8) and / or the cooperating stop (9) can move parallel to each other at any time.

6. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, The at least one adjusting element is configured as a fixing device (17), wherein the fixing device (17) has threads and / or is engaged in threads.

7. The chain milling equipment (1) according to claim 6, wherein, The fixing device (17) is a lead screw.

8. The chain milling equipment (1) according to claim 6, wherein, The fixing device (17) is a self-locking lead screw.

9. The chain milling equipment (1) according to claim 6, wherein, The fixing device (17) is fitted into the thread of the threaded bushing arranged in the stop (8).

10. The chain milling equipment (1) according to claim 6, wherein, The at least one fixing device (17) includes at least one tool receiving part (20).

11. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, The at least one synchronization device (16) is arranged on at least two adjustment elements (14, 15) for motion coupling and / or configured as a chain (21) or belt.

12. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, At least one gear (22) is arranged on the at least two adjusting elements (14, 15) and the at least one synchronizing device (16), wherein the at least two adjusting elements (14, 15) can move simultaneously by means of the movement of the at least one synchronizing device (16) to change the first gap (12) between the stop (8) and the mating stop (9).

13. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, At least one tensioning device (23) is provided, which is arranged on the at least one synchronization device (16).

14. The chain milling equipment (1) according to claim 13, wherein, The at least one tensioning device (23) includes an adjustment device (24) by means of which the tension of the at least one synchronization device (16) can be adjusted.

15. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, At least one guide device (25) is arranged on the stop (8) and / or the mating stop (9).

16. The chain milling equipment (1) according to claim 15, wherein, The at least one guiding device (25) is configured as a guide bolt.

17. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, At least one spacer element (26) is arranged on the stop (8) and / or the mating stop (9).

18. The chain milling equipment (1) according to claim 17, wherein, The spacer element (26) is a spring-loaded bolt.

19. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, There are exactly four adjustment elements (14, 15), which are arranged substantially on an imaginary rectangle.

20. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, The table (7) is provided with at least one scale (27) and includes at least one indicator (28) by which the first gap (12) between the stop (8) and the mating stop (9) can be read by the relative position of the at least one indicator (28) with respect to the at least one scale (27).

21. The chain milling equipment (1) according to claim 20, wherein, The scale (27) is arranged on the mating stop (9) and / or the stop (8).

22. The chain milling equipment (1) according to claim 20, wherein, The at least one scale (27) is arranged on the side (29) of the mating stop (9) and / or the stop (8).

23. The chain milling equipment (1) according to claim 20, wherein, The at least one indicator (28) is rotatably fixed to the mating stop (9) and / or rotatably supported on the stop (8), or the at least one indicator is rotatably fixed to the stop and / or rotatably supported on the mating stop.

24. The chain milling equipment (1) according to claim 23, wherein, The at least one indicator (28) is constructed in a substantially plate-like manner.

25. The chain milling equipment (1) according to claim 24, wherein, The at least one indicating device (28) has a pointer (30).

26. The chain milling equipment (1) according to claim 20, wherein, The first gap (12) between the stop (8) and the mating stop (9) can be read by the relative position of the at least one additional indicator (32) with respect to the at least one additional scale (31).

27. The chain milling equipment (1) according to claim 26, wherein, The additional scale (31) is arranged on the support surface (10) of the mating stop (9).

28. The chain milling equipment (1) according to claim 26, wherein, The at least one additional scale (31) is arranged in the region of at least one adjustment element (14, 15) and / or around at least one adjustment element, and / or the at least one additional indicating device (32) is constituted by at least one mark (33) on at least one adjustment element (14, 15).

29. The chain milling equipment (1) according to any one of claims 26 to 28, wherein, The at least one indicator (28) and the at least one additional indicator (32) are motion-coupled.

30. The chain milling equipment (1) according to any one of claims 26 to 28, wherein, The at least one indicator (28) and the at least one additional indicator (32) are indirectly kinematically coupled by a mating stop (9) and / or a stop (8).

31. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, The first pitch (12) can be adjusted and / or read by the at least one adjustment device (11) in the range of 10 mm to 40 mm and / or with an accuracy in the range of 0.01 mm to 1 mm.

32. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, The first pitch (12) can be adjusted and / or read by the at least one adjustment device (11) in the range of 15 mm to 25 mm and / or with an accuracy in the range of 0.03 mm to 0.1 mm.

33. The chain milling equipment (1) according to claim 31, wherein, The system is provided with at least one indicator (28) and at least one scale (27) and / or at least one additional indicator (32) and at least one additional scale (31), wherein coarse adjustment of the first pitch (12) can be read by the relative position of the at least one indicator (28) with respect to the at least one scale (27), and / or fine adjustment of the first pitch (12) can be read and / or adjusted by the relative position of the at least one additional indicator (32) with respect to the at least one additional scale (31).

34. The chain milling equipment (1) according to claim 33, wherein, The coarse and fine adjustments of the first pitch (12) can be made by the same adjustment element (14).

35. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, The furniture board (3) can be pressed onto the mating stop (9) by at least one clamping device (34).

36. The chain milling equipment (1) according to claim 35, wherein, The clamping device (34) includes an operating element (35), a tensioning element (36) and at least one pressing element (37), which allows the furniture board (3) to be pressed onto the tensioning element (36) and the mating stop (9) via the at least one pressing element (37) by operating the operating element (35).

37. The chain milling equipment (1) according to claim 36, wherein, By operating the operating element (35), the furniture board (3) can be pressed sequentially onto the tensioning element (36) and the mating stop (9) via the at least one pressing element (37).

38. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, The at least one chain milling machine (5) has at least one chain guide (38) on which at least one milling chain (39) is arranged around the chain guide, the milling chain having a plurality of chain links (40) hinged to each other and hard metal teeth (41) arranged on the chain links (40).

39. The chain milling equipment (1) according to claim 38, wherein, The carbide teeth (41) of the at least one chain milling machine (5) have two cutting edges (42), the spacing of which defines the width of the bag-shaped groove (2) to be milled.

40. The chain milling equipment (1) according to claim 39, wherein, The spacing of the cutting edges (42) of the hard metal teeth (41) is 10.0 mm to 15.0 mm.

41. The chain milling equipment (1) according to claim 39, wherein, The spacing between the cutting edges (42) of the hard metal teeth (41) is 12.5 mm.

42. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, The at least one chain milling machine (5) is capable of moving along the at least one linear guide (6) over a stroke greater than 200 mm, wherein the stroke of the at least one chain milling machine (5) defines the depth of the bag-shaped groove (2) to be milled.

43. The chain milling equipment (1) according to claim 42, wherein, The at least one chain milling machine (5) is capable of moving along the at least one linear guide (6) over a stroke greater than 250 mm.

44. The chain milling equipment (1) according to any one of claims 1 to 5, wherein, The machine is provided with at least one lifting device (43), by means of which the at least one chain milling machine (5) can move along the at least one linear guide (6) at a lifting speed of 10 mm / s to 20 mm / s.

45. The chain milling equipment (1) according to claim 44, wherein, The at least one chain milling machine (5) is capable of moving along the at least one linear guide (6) at a lifting speed of 15 mm / s.

46. ​​The chain milling equipment (1) according to claim 44, wherein, The at least one lifting device (43) has at least one pneumatic actuator (44).

47. The chain milling equipment (1) according to claim 38, wherein, - The chain milling device (1) has at least one chain driver (45) for moving the at least one milling chain (39) around the at least one chain guide (38), and / or - The at least one chain milling machine (5) is arranged directly, i.e. without liquid lubrication, in a ring on the at least one chain guide (38).

48. The chain milling equipment (1) according to claim 47, wherein, The chain drive (45) is electric.

49. A method for adjusting the height of a height-adjustable worktable of a chain milling machine (1) according to any one of claims 1 to 48, characterized in that... The following are the steps: - A stop (8) and a mating stop (9) are provided at a first spacing (12). - The first pitch (12) is changed by adjusting element (14) of at least one adjusting device (11), wherein the adjusting element (14) is kinematically coupled to at least one other adjusting element (15) by at least one synchronizing device (16). - While changing the first pitch (12) by the adjustment element (14), the at least one other adjustment element (15) is moved together, so that the first pitch (12) transitions to a second pitch (46) that is different from the first pitch (12).

50. The method according to claim 49, wherein, When transitioning from the first spacing (12) to the second spacing (46), the stop (8) and the mating stop (9) remain parallel to each other at any time.

51. The method according to claim 49, wherein, When adjusting the second pitch (46) by means of the adjusting element (14), the current second pitch (46) can be read by means of the relative position of at least one indicator (28) with at least one scale (27) and / or the relative position of at least one additional indicator (32) with at least one additional scale (31) during or after the relative movement of the stop (8) and / or the cooperating stop (9), and / or the coarse adjustment of the second pitch (46) can be read by means of the relative position of the at least one indicator (28) with respect to the at least one scale (27), and / or the fine adjustment of the second pitch (46) can be read by means of the relative position of the at least one additional indicator (32) with respect to the at least one additional scale (31).

52. The method according to claim 51, wherein, The coarse and fine adjustments of the second pitch (46) are made by the same adjustment element (14).

53. A method for producing at least one bag-shaped groove (2) in at least one furniture board (3) by means of at least one chain milling machine (1) according to any one of claims 1 to 48, characterized in that The following are the steps: - The first gap (12) between the stop (8) and the mating stop (9) is adjusted by the at least one adjusting device (11). - Make the at least one furniture panel (3) abut against the support surface (10) of the mating stop (9), - Move the at least one chain milling machine (5) partially along at least one linear guide (6) in a direction extending perpendicular to the end face (13) of the furniture board (3), wherein the at least one bag-shaped groove (2) is milled into the furniture board (3) from the end face (13).

54. The method according to claim 53, wherein, Perform the following steps in chronological order: - The first gap (12) between the stop (8) and the mating stop (9) is adjusted by the at least one adjusting device (11). - The at least one furniture panel (3) is placed against the support surface (10) of the mating stop (9) and the at least one furniture panel is fixed to the mating stop (9) by a clamping device (34). - The at least one chain milling machine (5) is moved manually or automatically in a direction extending perpendicular to the end face (13) of the furniture board (3) along the at least one linear guide (6), wherein the at least one bag-shaped groove (2) is milled into the furniture board (3) from the end face (13).

55. The method according to claim 53, wherein, In a subsequent method step, the outer wall thickness (47) is measured in the region of the at least one bag-shaped groove (2), and the at least one bag-shaped groove (2) is introduced into the at least one additional furniture board (3) by the at least one chain milling machine (5).

56. The method according to claim 55, wherein, The first gap (12) is readjusted by the at least one adjusting device (11), and at least one additional furniture board (3) is placed against the support surface (10) of the mating stop (9).

57. The method of claim 55, wherein, The first pitch (12) is readjusted by at least one additional indicator (32) and / or at least one additional scale (31).

58. A method for manufacturing at least one wall (48) for a furniture body, said method comprising the method according to any one of claims 53 to 57, wherein, In another method step, at least one furniture fitting (4) for movably supporting furniture components is arranged in the at least one bag-shaped groove (2).

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