Multi-profile milling apparatus and machining device

Abstract

The invention relates to a multi-profile milling device (10) for cutting workpieces, preferably made of wood, wood-based boards, plastic, composite materials and / or the like, in particular for machining edges of workpieces, having a first milling device (11) with at least one first milling tool (18) with a first machining profile (19), wherein the first milling device (11) is arranged in a working position and can be coupled to a drive shaft (13), and having at least one second milling device (12) with at least one second milling tool (21) with a second machining profile (22), wherein the at least one second milling device (12) can be moved relative to the first milling device (11) between a position of use (24) and a position of non-use (23), characterized in that a locking device (27) with at least one centrifugal element (28, 29) is provided, and the at least one centrifugal element (28, 29) locks the at least one second milling device (12) in the position of use (24) or in the position of non-use (23) during a rotational movement of the milling device (11, 12), and to a machining device (20).

Description

Technical Field

[0001] This invention relates to a multi-profile milling machine for cutting and machining workpieces, and a machining apparatus. Background Technology

[0002] DE 19 915 672A1 discloses a profile milling apparatus for machining the edges of a workpiece. The apparatus comprises two milling units, each having a milling cutter with a different machining profile. The first milling unit is positioned in a working position to machine the edge of a workpiece having a first machining profile. The second milling unit is axially movable relative to the first milling unit between a rest position and a working position, whereby the machining profile of the second milling unit is superimposed on the machining profile of the first milling unit to perform the machining process. Adjustment of the second milling unit is achieved via a connecting fork, which is operated by a pneumatic cylinder. To lock the second milling unit during machining, it is positioned without clearance, particularly in the working position, by means of a hydraulic tensioning device. This hydraulic tensioning device has a complex construction and increases the cost of the profile milling apparatus. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-profile milling machine with a simplified structure and the ability to be flexibly integrated into a machining apparatus. Furthermore, the purpose of this invention is to provide a machining apparatus that exhibits high operational reliability in multi-profile milling operations.

[0004] This document defines a multi-profile milling machine. It also defines a machining apparatus. Furthermore, specific embodiments are described herein.

[0005] The objective is achieved by a profile milling apparatus for cutting workpieces, preferably made of wood, engineered wood, plastic, composite materials and / or similar materials, the profile milling apparatus being particularly used for machining the edges of workpieces, the profile milling apparatus having a first milling device disposed in a working position and capable of being coupled to a drive shaft, and the profile milling apparatus having at least one second milling device capable of moving relative to the first milling device between a working position and an unworking position, wherein a locking device having at least one centrifugal force element is provided, and the at least one centrifugal force element locks at least one second milling device in the working position or the unworking position during the rotational movement of the milling device.

[0006] This multi-profile milling equipment can be used to process workpieces with different machining profiles, such as different radii or chamfers, especially the edges of the workpiece. This is achieved by enabling the second milling device to move axially, thereby setting up a superposition of different machining profiles for the machining process. Here, the second milling device is fixed by at least one centrifugal force element of the locking device, in a way that the centrifugal force element locks the second milling device in a used or unused position due to the centrifugal force generated during the rotational motion. Furthermore, the multi-profile milling equipment can perform multi-profile machining on the circumferential edges of a workpiece, such as the circumferential edges of the narrow side of a plate-shaped workpiece.

[0007] A preferred design of a multi-profile milling machine may be configured such that a first milling device and at least one second milling device are coaxially arranged with each other, and a locking device is functionally provided between the milling devices.

[0008] By coaxially arranging two milling devices, a simple structural design for a multi-profile milling machine can be achieved, wherein the second milling device is configured to move axially about the first milling device. Furthermore, a compact design can be achieved by using a locking device between the milling devices.

[0009] In another preferred design of the multi-profile milling equipment, at least one second milling device can be axially movable and is torsionally coupled to the first milling device.

[0010] In this manner, the torque transmitted to the first milling device can be transmitted to the second milling device, while axial mobility of the second milling device between the working position and the non-working position can be achieved.

[0011] An advantageous improvement to the multi-profile milling equipment can further be provided that the locking device has at least two centrifugal force elements, wherein at least one first centrifugal force element locks the second milling device in the use position, and at least one second centrifugal force element locks the second milling device in the non-use position.

[0012] Therefore, in order to lock the second milling device in the use position or the non-use position, at least one centrifugal force element can be provided respectively, so that the second milling device can be safely locked during the machining process.

[0013] Advantageously, at least two centrifugal force elements can be arranged spaced apart from each other in the axial direction in a multi-profile milling machine.

[0014] Due to this axial spacing of at least two centrifugal force elements, the second milling device can be precisely positioned in both the active and inactive positions when the distance between the centrifugal force elements is defined. Furthermore, by minimizing the axial spacing between the at least two centrifugal force elements, a short adjustment path can be formed between the active and inactive positions.

[0015] Particularly advantageously, in a multi-profile milling device, at least two centrifugal force elements can be respectively housed in a vacancy on the outer circumference of the first milling device, and at least one recess is formed on the inner circumference of the second milling device, the recess being positioned toward at least one first centrifugal force element in the use position of the second milling device, and toward at least one second centrifugal force element in the non-use position of the second milling device.

[0016] In addition to the particularly simple and compact design of the locking device, this also allows the locking device to be directly and functionally installed between the milling machines. Furthermore, the locking device can be protectively installed between the milling machines, thereby reducing damage caused by dirt, dust, sawdust, etc.

[0017] In an alternative design of the multi-profile milling equipment, it can be further configured such that at least one centrifugal force element is housed in a recess on the outer circumference of the first milling device, and at least two recesses are formed axially spaced apart from each other on the inner circumference of the second milling device, wherein in the use position of the second milling device, the first recess is positioned toward the centrifugal force element, and in the non-use position, the second recess is positioned toward the centrifugal force element.

[0018] The design of the locking device can reduce the number of centrifugal force components.

[0019] Advantageously, in a multi-profile milling device, at least one centrifugal force element can be configured to move into a locked position by the rotational movement of the milling device, in which at least one centrifugal force element is partially disposed in a void on the outer circumference of the first milling device and partially disposed in a corresponding recess on the inner circumference of the second milling device.

[0020] This allows at least one centrifugal force element to securely lock the second milling device during the rotational motion of the milling device, and during the stationary state, at least one second milling device is released for switching between a use position and an inactive position.

[0021] Particularly advantageously, in multi-profile milling equipment, at least one centrifugal force element can be configured as a sphere or column with its radially outward-pointing end being rounded or conical.

[0022] Corresponding to the spherical or cylindrical centrifugal force element, the corresponding void can be configured as a hole with a minimum diameter larger than that of the spherical or cylindrical centrifugal force element. Therefore, the axial clearance of the spherical or cylindrical centrifugal force element can be minimized or eliminated.

[0023] Another preferred design of the multi-profile milling equipment can be configured such that at least one recess on the inner circumference of the second milling device has an inclined surface on the side of the use position in the longitudinal section of the second milling device, and is preferably V-shaped.

[0024] By abutting the centrifugal force element against the inclined surface of the V-shaped recess in the locked position, and by applying a radial force to the inclined surface due to the centrifugal force, the V-shaped structure of the recess can be used to automatically center the second milling device in the use position and / or the non-use position.

[0025] A particularly advantageous design of a multi-profile milling machine can be configured such that at least one first centrifugal force element acts on the inclined surface of at least one recess in a locked position in such a way as to form an axial force component, the axial force component pressing the second milling device against at least one stop that defines the use position in the use position.

[0026] With the aforementioned design, a defined axial stop can be formed for the usage position, allowing the second milling device to be positioned without clearance during the machining process. The stop can be formed in connection with at least one stop element between the first and second milling devices. In particular, at least one centrifugal force element is sized such that the axial force component generated by centrifugal force is greater than the axial force generated during the machining process. Furthermore, it can be configured such that at least one second centrifugal force element, in the locked position, acts on the inclined surface of the recess on the side of the non-use position such that the axial force component presses the second milling device against at least one stop defining the non-use position in the non-use position.

[0027] In an advantageous design of a multi-profile milling machine, at least one stop portion defining the use position and / or non-use position may have at least one point-like or bump-like stop surface.

[0028] This allows for a particularly small contact surface of the stop, minimizing the possibility of precision loss due to contaminants such as adhering foreign matter, dust, or debris. Preferably, the stop is formed by three point-like or bump-like stop surfaces. In this manner, a defined stop plane can be formed, enabling precise positioning of the second milling device, especially in its operating position. Advantageously, at least one stop can be concealed between the outer circumference of the first milling device and the inner circumference of the second milling device. In this way, at least one stop is protected from contamination.

[0029] Another advantageous design of the multi-profile milling equipment is that at least one stop portion defining the use position is axially movable by means of an adjustment device.

[0030] In this manner, the axial position of the stop surfaces relative to each other can be changed, for example by an eccentric, thereby enabling precise axial positioning of the second milling device.

[0031] An advantageous improvement to the multi-profile milling equipment can also be provided that the depth of the recess is configured such that at least one spherical or cylindrical centrifugal force element is disposed at least halfway in the recess in the locked position.

[0032] Thus, a minimal axial clearance can be formed between at least one spherical centrifugal force element and the empty space, because in the locked position, the centrifugal force element remains in the empty space with its maximum diameter. In this manner, axial movement of the centrifugal force element can be prevented in the locked position.

[0033] In another design of the multi-profile milling equipment, a template roller can also be provided, which is rotatably decoupled from the first milling device and / or drive shaft.

[0034] The guide roller can be used to guide the multi-profile milling equipment toward the workpiece during the machining process, thereby achieving uniform and high-quality machining results.

[0035] The objective is also achieved by a processing apparatus for cutting workpieces, preferably made of wood, engineered wood, plastic, composite materials and / or similar materials, the processing apparatus being particularly for processing the edges of workpieces, the processing apparatus having a workpiece holder for accommodating at least one workpiece, a profile milling device for performing the cutting process on the workpiece, a drive device for driving the profile milling device, and a conveying device for causing relative movement between the workpiece and the profile milling device, wherein the profile milling device is configured according to one of the foregoing embodiments.

[0036] Machining apparatuses equipped with this type of multi-profile milling equipment can machine workpieces with different machining profiles, especially the edges of the workpieces. For example, the machining profiles can have different radii or chamfers. In this way, the setup and adjustment time for changing tools for different machining profiles can be avoided, thereby achieving time-saving and cost-effective machining of the workpieces.

[0037] A preferred improvement to the machining apparatus may be to provide an adjustment device that controls the adjustment movement of at least one second milling device between a used position and an unused position.

[0038] Using this adjustment device, multi-profile machining can be automated, for example by controlling the adjustment device so that the axial adjustment movement of the second milling device is executed according to the machining profile to be produced.

[0039] In another advantageous design of the machining apparatus, a sensor device can be provided that detects the adjustment position of at least one second milling device.

[0040] Such a sensor device can accurately detect the adjustment position of the second milling device, enabling control of the machining process based on the detection signal. Attached Figure Description

[0041] Other features and advantages of the apparatus, use, and / or method will become apparent from the following description of the embodiments with reference to the accompanying drawings. As illustrated in the drawings:

[0042] Figure 1 A side view of one embodiment of a multi-profile milling apparatus according to this disclosure is shown;

[0043] Figure 2 Show Figure 1 An exploded three-dimensional view of a multi-profile milling machine, the multi-profile milling machine having detachable template rollers;

[0044] Figure 3 A schematic cross-sectional view of a multi-profile milling apparatus having a second milling device in the use position is shown;

[0045] Figure 4 Showing according to Figure 3 Detailed view of the centrifugal force device of the multi-profile milling equipment in detail A;

[0046] Figure 5 A schematic cross-sectional view of a multi-profile milling apparatus having a second milling device in an unused position is shown.

[0047] Figure 6 Showing according to Figure 5 Detailed view of the centrifugal force device of the multi-profile milling equipment in detail B;

[0048] Figure 7 A schematic cross-sectional view of an alternative embodiment of a profile milling apparatus having a second milling device in the use position is shown.

[0049] Figure 8 Showing according to Figure 7 Detailed view of the centrifugal force device in the alternative implementation of the multi-profile milling equipment in detail C;

[0050] Figure 9A schematic cross-sectional view showing an alternative embodiment of a profile milling machine having a second milling device in an unused position;

[0051] Figure 10 Showing according to Figure 9 Detailed view of the centrifugal device in the alternative implementation of the multi-profile milling equipment in detail D. Detailed Implementation

[0052] The same reference numerals listed in different figures refer to the same, corresponding to, or functionally similar elements.

[0053] Figure 1 A side view of one embodiment of the multi-profile milling apparatus 10 according to this disclosure is shown, and Figure 2 A partially exploded perspective view of a profile milling machine 10 is shown, which includes a detachable template roller 26. This profile milling machine 10 is configured for cutting workpieces with different machining profiles or milling profiles. In particular, the profile milling machine 10 is configured for machining the edges of the workpiece. For this purpose, the profile milling machine 10 can connect to... Figure 1 The processing device 20 shown in the figure is coupled.

[0054] The machining device 20 can be any machine tool used for machining workpieces. In particular, the machining device 20 is configured as a woodworking device. The machining device 20 can be configured as a continuous machining machine or a stationary machine tool. In the case of a continuous machining machine, the machining of the workpiece is performed in a continuous operation method, wherein the workpiece moves relative to the profile milling machine 10 via a transport device. Furthermore, the profile milling machine 10 can be movably positioned relative to the workpiece in the X, Y, and / or Z directions via an adjustment device. In the case of a stationary machine tool, the workpiece can be held statically, and the profile milling machine 10 can be movable relative to the workpiece via an adjustment device. The machining device can also be configured as a CNC-controlled machining device or a CNC-controlled machining center.

[0055] The workpiece to be processed is particularly one at least partially composed of wood, engineered wood, plastic, composite materials, or the like. Various workpieces may be involved, such as solid wood or particleboard, lightweight structural panels, plywood, floor strips, profiles, etc. The workpiece is preferably a plate-shaped workpiece. However, the invention is not limited to processing such workpieces and materials.

[0056] The multi-profile milling machine 10 includes a first milling device 11, a second milling device 12, and a template roller 26. The two milling devices 11 and 12 are each formed by a base, and the milling devices are coaxially arranged and can rotate about a common axis of rotation R. The milling devices 11 and 12 are each formed with substantially rotationally symmetrical bodies.

[0057] The first milling device 11 can be torsionally coupled to the drive shaft 13, for example, via a bolted connection, to transmit torque. Alternatively, the first milling device 11 and the drive shaft 13 can be integrally formed. The drive shaft 13 can be coupled to the drive mechanism of the machining apparatus 20 via an interface not shown in detail. Similarly, the drive shaft 13 can be a component of the machining apparatus 20 and can be torsionally coupled to the first milling device 11 via an interface.

[0058] The second milling device 12 is coaxially arranged with the first milling device 11 and is positioned at the outer circumference 16 of the first milling device 11 via an inner circumference 14. The outer circumference 16 of the first milling device 11 and the inner circumference 14 of the second milling device 12 are at least partially parallel to a common axis of rotation R. Thus, the second milling device 12 is positioned at the outer circumference 14 of the first milling device 11 in a manner axially movable relative to the first milling device 11. Torque introduced via the drive shaft 13 can be transmitted to the second milling device 12 via the first milling device 11, causing the two milling devices 11 and 12 to operate in the same direction. This axial operation can be achieved, for example, by a drive member or a profile. Therefore, the second milling device 12 is coupled to the first milling device 11 not only in an axially movable manner but also in a torsional-resistant manner.

[0059] A first milling cutter 18 is provided at the end of the first milling device 11, and the first milling cutter forms a first machining profile 19 for machining the workpiece. In particular, the first machining profile 19 is configured to have a defined milling radius or a defined milling chamfer for machining the edge of the workpiece. The first milling cutter 18 can be detachably fastened to the first milling device 11 by a fastening mechanism. The first milling cutter 18 is set in a fixed working position, and the edge of the workpiece is milled onto the corresponding first machining profile 19 by rotational movement about the rotation axis R and relative movement between the workpiece and the multi-profile milling device 10.

[0060] A second milling cutter 21 is provided at the end of the second milling apparatus 12 associated with the first milling cutter 18. The second milling cutter forms a second machining profile 22 for machining the workpiece. In particular, the second machining profile 22 is configured with a different milling radius or a different milling chamfer than the first machining profile 19. The second machining profile 22 of the second milling cutter 21 may have a smaller milling radius than the first machining profile 19 of the first milling cutter 18. The second milling cutter 21 can be fastened to the second milling apparatus 12 by a fastening mechanism.

[0061] Figure 3 and Figure 5 Cross-sectional views of the multi-profile milling machine 10 are shown respectively, wherein... Figure 3 In the middle, the second milling device 12 is arranged in the use position 24, and in Figure 5 In the middle, the first milling device 11 is arranged in the working position. Through the axial movement of the second milling device 12 relative to the first milling device 11, the second milling device moves from... Figure 3 The usage position 24 shown is changed to Figure 5 The non-use position 23 is shown. In the use position 24, the second milling cutter 21 is positioned in the working position such that the cutting element of the second milling cutter 21 of the second milling device 12 engages in the gap between the cutting elements of the first milling cutter 18 of the first milling device 11, such that the second machining profile 22 of the second milling cutter 21 overlaps with the first machining profile 19 of the first milling cutter 18. Therefore, the multi-profile milling equipment 10 is configured such that when the second milling device 12 is in the use position 24, the second machining profile 22 of the second milling cutter 21 overlaps with the first machining profile 19 of the first milling cutter 18 in such a way that the workpiece is machined by the second machining profile 22. This ensures that although both milling cutters 18 and 21 machine the workpiece simultaneously, only the machining profile 22 of the second milling cutter 21 is transferred to the workpiece.

[0062] To perform the guided machining process, the profile milling machine 10 also includes a template roller 26. The template roller rolls circumferentially on the workpiece surface adjacent to the workpiece edge during the machining process, guiding the profile milling machine 10 to the workpiece in this manner. The template roller 26 is supported, for example, at the first milling device 11 in a rotationally decoupled manner by one or more rolling bearings. Therefore, the template roller 26 can perform rolling motion on the workpiece surface in a manner independent of the rotational motion of the milling devices 11 and 12. The template roller 26 can, for example, be supported in a hole on the end side of the first milling device 11. The first and second milling devices 11 and 12 have the same base diameter, allowing the machining process to be performed in conjunction with the template roller 26 by means of each of the milling devices 11 and 12.

[0063] Figure 3 A locking device 27 is shown, which locks the second milling device 12 in the axial direction during the rotational movement of the milling devices 11 and 12. The locking device 27 has a plurality of centrifugal force elements 28 and 29 and is operatively disposed between the two milling devices 11 and 12 during rotational movement. During the rotational movement of the milling devices 11 and 12, the first centrifugal force element 28 locks the second milling device 12 in the use position 24. Figure 3 The second centrifugal force element 29 locks the second milling device 12 in the non-use position 23. Figure 5 ).

[0064] Centrifugal force elements 28 and 29 are axially spaced apart from each other at a distance a at the outer circumference 16 of the first milling device 11. Thus, the centrifugal force elements 28 and 29 are arranged in two axially spaced planes at the outer circumference 16, the two planes extending perpendicular to the axis of rotation R. The distance a is preferably set relatively small to form the shortest possible adjustment path between the used position 24 and the unused position 23. For this purpose, the centrifugal force elements 28 and 29 can at least partially overlap in radial planes within the distance a. It is advantageous to use centrifugal force elements 28 and 29 with the smallest possible diameter. Multiple centrifugal force elements 28 and 29 can be used to generate the centrifugal force required for safety locking using the small centrifugal force elements 28 and 29. Similarly, the centrifugal force elements 28 and 29 can be made of a high-density material, such as a hard metal. Preferably, the centrifugal force elements 28 and 29 are arranged relative to each other at the first milling device 11 in a manner to prevent imbalance.

[0065] In the following description, it should be noted that multiple centrifugal force elements 28, 29 can be respectively arranged in a common plane perpendicular to the rotation axis R, at the outer circumference 16 of the first milling device 11, even though only one centrifugal force element 28, 29 is described below. The centrifugal force elements 28, 29 are respectively housed in a recess 31 at the outer circumference 16 of the first milling device 11. The recess 31 is particularly configured as a hole.

[0066] Corresponding to the centrifugal force elements 28 and 29, a recess 32 is formed at the inner circumference 14 of the second milling device 12. This recess can be positioned toward the centrifugal force elements 28 and 29 by axial displacement of the second milling device 12 relative to the first milling device 11. The recess 32 can be formed circumferentially along the entire inner circumference 14 in an axial plane. The recess can be a groove or a recess. It is also possible to propose that multiple recesses 32 are formed in a common axial plane along the inner circumference 14, wherein the recesses 32 are respectively oriented toward the corresponding centrifugal force elements 28 and 29.

[0067] In the operating position 24, the recess 32 is positioned toward the first centrifugal force element 28, such that during the rotational movement of the milling devices 11 and 12, the first centrifugal force element 28 is moved to the locking position 33 due to centrifugal force, in which the first centrifugal force element 28 is partially disposed not only in the empty portion 31 but also partially disposed in the recess 32. As long as the rotational movement is performed, the second milling device 12 is axially locked in the operating position 23 in this manner.

[0068] According to Figure 3In the embodiment of the multi-profile milling machine 10, the centrifugal force elements 28 and 29 are each configured as spheres. The diameters of the spherical centrifugal force elements 28 and 29 are set such that they are at least smaller than the diameter or axial width of the clearance portion 31. This minimizes the axial clearance between the centrifugal force elements 28 and 29 in the clearance portion 31 while simultaneously enabling radial movement of the centrifugal force elements 28 and 29. To generate a large centrifugal force for locking during rotational motion, the centrifugal force elements 28 and 29 are particularly made of metallic material.

[0069] The recess 32 is V-shaped in the longitudinal section of the multi-profile milling machine 10. The depth of the V-shaped recess 32 can be configured such that at least half of the spherical centrifugal force elements 28 and 29 are disposed in the empty portion 31 in the locking position 33.

[0070] By combining the V-shaped design of the recess 32 with the stop element 30 and the two stop portions 15a and 15b of the clearance 15 between the first milling device and the second milling devices 11 and 12, if the centrifugal force elements 28 and 29 are positioned in the locking position 33 during rotational motion and abut against one of the inclined surfaces 32a and 32b of the V-shaped recess 32, the second milling device 12 is centered in the use position 24 and / or the non-use position 23. Due to this centering, the second milling cutter 18 is precisely positioned in the use position 24 or the non-use position 23 during the machining process at the workpiece.

[0071] Figure 4 Showing according to Figure 3 A detailed view of the locking device 27 in detail A, wherein the centrifugal force element 28 is shifted into the locking position 33 and the second milling device 12 is locked in the use position 24. The recess 32 is positioned relative to the centrifugal force element 28 such that the centrifugal force element 28 acts only on the inclined surface 32a of the V-shaped recess 32 on the side provided in the use position 24. Thus, the radially acting centrifugal force F... r It deflects at inclined plane 32a and forms an axial force component F. a The axial force component presses the second milling device 12 against the stop portion 15a that defines the use position 24 by means of the stop element 30. a and F r Together, we can derive the normal force F. n The normal force acts perpendicularly on the sidewall 32a.

[0072] By using the spherical design of the centrifugal force elements 28 and 29, and the V-shaped design of the recess 32, the second milling device 12 is automatically released when the rotational speed of the multi-profile milling equipment 10 decreases or stops, making the axial movement of the second milling device 12 possible.

[0073] Figure 5 A schematic cross-sectional view of a multi-profile milling machine 10 with a second milling cutter 12 is shown in its non-use position 23. Figure 6 Showing according to Figure 5 Detailed view of the locking device 27 in detail B.

[0074] In the non-use position 23, the recess 32 is positioned relative to the second centrifugal force element 29 such that during the rotational movement of the milling devices 11 and 12, the second centrifugal force element 29 is transferred to the locked position 33 due to centrifugal force, in which the second centrifugal force element 29 is partially disposed not only in the empty portion 31 but also partially disposed in the recess 32. As long as rotational movement is performed, the second milling device 12 is axially locked in the non-use position 23 in this manner.

[0075] According to Figure 6 The detailed view shows that the centrifugal force element 29 in the locking position 33 acts only on the inclined surface 32b of the V-shaped recess 32 located on the side of the non-use position 23. The radially acting centrifugal force F r It deflects at inclined plane 32b and generates an axial force component F. a The axial force component presses the second milling device 12 against the stop portion 15b that defines the non-use position 23 by means of the stop element 30.

[0076] The locking device 27 of the first embodiment of the multi-profile milling machine 10 can alternatively be designed such that the second milling device 12 is locked in the non-use position 23 by the contact of the second centrifugal force element 29 at the two inclined surfaces 32a, 32b of the recess 32. In this case, it should not be configured such that the stop element 30 contacts the stop portion 15b in the non-use position 23.

[0077] Figures 7 to 10 A cross-sectional view showing an alternative embodiment of the multi-profile milling machine 10, wherein... Figure 7 The second milling device 12 is installed in the use position 24 and in Figure 9 The second milling device 12 is located in the non-use position 23. Figure 8 and Figure 10 A detailed view of the locking device 27 is shown. In the alternative embodiment of the multi-profile milling machine 10, the positioning of the second milling device 12 in the use position 24 and the non-use position 23 is achieved solely by centrifugal force elements 28 and 29.

[0078] In the described embodiment, the centrifugal force elements 28 and 29 are configured in a columnar shape with conical end sides. Compared to spherical centrifugal force elements 28 and 29, the columnar shape allows for increased mass and thus increased centrifugal force for the same diameter. However, in the described embodiment, the centrifugal force elements 28 and 29 can also be configured as spheres. The spherical centrifugal force elements 28 and 29 of the first embodiment of the multi-profile milling machine 10 can also be configured as such columnar centrifugal force elements 28 and 29.

[0079] Not only in position 24 ( Figure 7 and Figure 8 Moreover, in non-use location 23 ( Figure 9 and Figure 10 Centrifugal force element 28 or 29 acts on the two inclined surfaces 32a and 32b of the V-shaped recess 32 via its conical end. This generates two axial force components F in opposite axial directions. a Thus, the second milling device 12 is axially fixed.

[0080] Here, facing the use position 24, an axial limiting portion for the maximum adjustment path is provided through the contact between the shoulder of the second milling device 12 and the first milling device 11. Facing the non-use position 23, an axial limiting portion for the adjustment path of the second milling device 12 is provided through another shoulder 17, which is, for example, formed in the form of a retaining ring.

[0081] Instead of limiting the axial adjustment path via shoulder 17 and another shoulder, a stop element 30 can be provided at the second milling device 12, similar to the first embodiment, where the adjustment path of the second milling device is limited by the stop surfaces 15a and 15b of the clearance portion 15. However, in this embodiment, the stop element 30 is only provided for limiting the maximum axial adjustment path and not for positioning the second milling device 12 in the use position 24 or the non-use position 23.

[0082] To enable the second milling device 12 to move axially between the non-use position 23 and the use position 24, an adjustment device 35 can be provided at the machining device 20. This adjustment device controls the axial adjustment movement. The adjustment device 35 can be constructed not only by a mechanical mechanism or a pneumatic mechanism, but also by an electric drive device or a magnetic drive device. For example, in... Figure 3 , Figure 5 , Figure 7 and Figure 9As shown, the adjusting device 35 works together with the protrusion 25 at the second milling device 12, and changes the position of the second milling device in the axial direction y between the used position 24 and the non-used position 23. Here, the adjusting movement can be performed not only by the adjusting device 35 relative to the fixed machining device 20, but also, conversely, by the adjusting movement of the machining device 20 relative to the fixed adjusting device 35.

[0083] Additionally, the machining apparatus may have a sensor device 34 for detecting the position of the second milling device 12. Figure 1 The sensor device 34 may have at least two sensors that detect the positioning of the second milling device 12 in the use position 24 and the non-use position 23. The sensor device 34 can transmit sensor signals to the control device of the machining apparatus and can manipulate the machining process and / or the adjustment movement of the second milling device 12 according to the control signals.

[0084] It will be apparent to those skilled in the art that the various features described in different embodiments can also be implemented in a single embodiment, provided that the features are not structurally incompatible. Similarly, the different features described within the scope of a single embodiment can also be presented individually or in any suitable sub-combination in multiple embodiments.

Claims

1. A profile milling machine (10) for machining workpieces, the profile milling machine having a first milling device (11) having at least one first milling cutter (18) with a first machining profile (19), wherein the first milling device (11) is arranged in a working position and is capable of being coupled to a drive shaft (13), and the profile milling machine having at least one second milling device (12) having at least one second milling cutter (21) with a second machining profile (22), wherein the at least one second milling device (12) is movable relative to the first milling device (11) between a working position (24) and a non-working position (23). Its features are, A locking device (27) with at least one centrifugal force element is provided, and the at least one centrifugal force element locks the at least one second milling device (12) in the use position (24) or the non-use position (23) during the rotational movement of the first milling device and the second milling device. Through the rotational movement of the first milling device and the second milling device, at least one centrifugal force element is moved to a locked position (33). In the locked position, the at least one centrifugal force element is partially disposed in a void (31) on the outer circumference (16) of the first milling device (11) and partially disposed in at least one recess (32) on the inner circumference (14) of the second milling device (12) corresponding to the void.

2. The multi-profile milling equipment according to claim 1, wherein the workpiece is made of wood, engineered wood, plastic and / or composite materials.

3. The multi-profile milling equipment according to claim 1 or 2, wherein the multi-profile milling equipment is used to process the edge of the workpiece.

4. The multi-profile milling apparatus according to claim 1 or 2, wherein the first milling device (11) and the at least one second milling device (12) are coaxially arranged with each other, and the locking device (27) is functionally arranged between the first milling device and the second milling device.

5. The multi-profile milling apparatus according to claim 1 or 2, wherein the at least one second milling device (12) is axially movable and is torsionally coupled to the first milling device (11).

6. The multi-profile milling apparatus according to claim 1 or 2, wherein the locking device (27) further comprises at least two centrifugal force elements, wherein at least one first centrifugal force element (28) locks the second milling device (12) in the use position (24), and at least one second centrifugal force element (29) locks the second milling device (12) in the non-use position (23).

7. The multi-profile milling apparatus according to claim 6, wherein the at least two centrifugal force elements are respectively housed in a recess (31) on the outer circumference (16) of the first milling device (11), and at least one recess (32) is formed on the inner circumference (14) of the second milling device (12), the recess being positioned toward the at least one first centrifugal force element (28) in the used position (24) of the second milling device (12), and being positioned toward the at least one second centrifugal force element (29) in the unused position (23) of the second milling device (12).

8. The multi-profile milling apparatus according to claim 1 or 2, wherein the at least one centrifugal force element is further housed in a recess (31) on the outer circumference (16) of the first milling device (11), and at least two recesses (32) are formed axially spaced apart from each other on the inner circumference (14) of the second milling device (12), wherein in the used position (24) of the second milling device (12), the first recess is positioned toward the centrifugal force element, and in the unused position (23), the second recess is positioned toward the centrifugal force element.

9. The multi-profile milling apparatus according to claim 1 or 2, wherein the at least one centrifugal force element is configured as a sphere with its radially outward-pointing end rounded; or the at least one centrifugal force element is configured as a column with its radially outward-pointing end tapered.

10. The multi-profile milling apparatus according to claim 1 or 2, wherein the at least one recess (32) on the inner circumference (14) of the second milling device (12) has an inclined surface (32a) disposed on the side of the use position (24) in the longitudinal section of the second milling device (12).

11. The multi-profile milling apparatus according to claim 10, wherein the at least one recess (32) is V-shaped in the longitudinal section of the second milling device (12).

12. The multi-profile milling apparatus according to claim 10, wherein the at least one first centrifugal force element (28) is in the locked position (33) to form an axial force component (F). a The axial force component acts on the inclined surface (32a) of the at least one recess (32) in a manner that presses the second milling device (12) in the use position (24) against at least one stop (15a) that defines the use position (24).

13. The multi-profile milling apparatus according to claim 12, wherein at least one of the stops defining the use position (24) and / or the non-use position (23) has at least one dot-shaped or protruding stop surface.

14. The multi-profile milling apparatus according to claim 12, wherein the at least one stop (15a) defining the use position (24) is axially movable by means of an adjustment device.

15. The multi-profile milling apparatus according to claim 9, wherein the depth of the recess (32) is configured such that at least half of the spherical or cylindrical centrifugal force element is disposed in the empty portion (31) in the locked position (33).

16. A machining apparatus (20) for cutting a workpiece, the machining apparatus having a workpiece holder for accommodating at least one workpiece, a profile milling device (10) for performing a cutting process on the workpiece, a drive device for driving the profile milling device (10), and a conveying device for causing relative movement between the workpiece and the profile milling device (10). Its features are, The multi-profile milling equipment (10) is configured according to any one of claims 1 to 15.

17. The processing apparatus according to claim 16, wherein the workpiece is made of wood, engineered wood, plastic and / or composite materials.

18. The processing apparatus according to claim 16 or 17, wherein the processing apparatus is used to process the edge of the workpiece.

19. The machining apparatus according to claim 16 or 17, wherein an adjustment device (35) is further provided, the adjustment device controlling the adjustment movement of the at least one second milling device (12) between the use position (24) and the non-use position (23).

20. The machining apparatus according to claim 16 or 17, wherein a sensor device (34) is further provided, the sensor device detecting the adjustment position of the at least one second milling device (12).

Images