Adjustment and cutting devices

Abstract

It is proposed to provide an adjusting device (1) for adjusting a cutting tool, which can be driven in rotation about a longitudinal axis (2), enabling an improved compact design, thereby better avoiding instabilities of the main drive, in particular the tool spindle, and making better use of the machining space, the adjusting device (1) comprising a cutting tool receiving part (3) supported to perform an adjusting movement (6), a drive unit (13, 13b) for driving the cutting tool receiving part (3), and a circuit carrier part (200) having a surface area facing the drive unit (13, 13b) and for forming at least one electronic control circuit (500, 510, 520, 530) provided for controlling the drive unit (13, 13b), wherein two surface points (600, 610) of the surface area (220) can be connected outside the circuit carrier part (200) by a connecting straight line (620), and both end points of the connecting straight line (620) are the surface points (600, 610).

Description

[Technical field]

[0001] The present invention relates to an adjusting device for adjusting a cutting tool, which is drivable in rotation about a longitudinal axis, comprising a cutting tool receiving part supported for performing an adjustment movement, a drive unit for driving the cutting tool receiving part, and a circuit carrier part having a surface area facing the drive unit and for forming at least one electronic control circuit provided for controlling the drive unit.

[0002] The present invention further relates to a cutting apparatus including a cutting tool, an adjustment device operably connected to the cutting tool for adjusting the cutting tool, and a rotatably drivable main drive operably connected to the adjustment device for providing a machining movement of the cutting tool. [Background technology]

[0003] According to the prior art shown in FIG. 1 of DE 44 31 845 A1, such a cutting device comprises a main drive 14 which is rotatable, lowerable and displaceable about a longitudinal axis 12, in whose tool receptacle 16 such an adjustment device 18 is clamped. The adjustment device 18 has a cutting tool receptacle 24 which can be displaced by a motor in the direction of the double arrow 22 and has a tool receptacle 26 for a cutting tool 30 on which a cutting edge plate 28 is mounted. When the adjustment device 18 together with the main drive 14 rotates about the longitudinal axis 12, the cutting edge plate 28 moves along a circular path relative to the longitudinal axis 12 according to a radial adjustment set by the motor. This allows the cutting edge plate 28 to come into contact with the workpiece, for example for drilling or enlarging a hole in the workpiece. The diameter of the circular path is usually called the rolling circle diameter. By arranging the cutting tool receptacle 24 for an adjustment movement, the turning circle diameter can be varied by a motor in the direction of the double arrow 22. Differently radially spaced inner and / or outer areas of the workpiece relative to the longitudinal axis 12 can then be machined. In this way, for example, different apertures can be realized. In particular, wear of the cutting wedges can be compensated for by the adjustment device 18 in order to maintain a predetermined machining diameter by an appropriate adjustment of the turning circle diameter by the motorized adjustment of the cutting tool receptacle 24. Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned adjustment device 18 or cutting device requires a relatively large installation space, particularly along the longitudinal axis 12, i.e. in the axial direction. This is disadvantageous since it reduces the stability of the main drive 14, i.e. in particular the tool spindle, and also reduces the processing space, particularly in the case of stationary clamped workpieces.

[0005] The object of the present invention is therefore to provide an adjustment device as described above and a cutting device as described above, each of which allows for a more compact design, thereby better preventing instabilities of the main drive, in particular the tool spindle, and better utilising the machining installation space. [Means for solving the problem]

[0006] As regards the adjustment device, this problem is solved by an adjustment device according to claim 1. Further preferred embodiments are given in the dependent claims.

[0007] The adjusting device for adjusting a cutting tool, which can be driven in rotation about its longitudinal axis, comprises a cutting tool receiving part supported for performing an adjusting movement, a drive unit for driving the cutting tool receiving part, and a circuit carrier part having a surface area facing the drive unit and for forming at least one electronic control circuit provided for controlling the drive unit, with two surface points of the surface area arranged to be connected outside the circuit carrier part by a connecting line, the two end points of the connecting line being the two surface points. The fact that the two surface points of the surface area can be connected outside the circuit carrier part by a connecting line having the two surface points as its end points means that the circuit carrier part can control the drive unit in the circumferential direction of the drive unit, for example in the area of ​​a gearbox of the drive unit and / or in the area of ​​a shaft part of the drive unit and / or in the area of ​​a shaft part of the drive unit and / or of a motor of the drive unit. Here, the circuit carrier part is preferably a printed circuit board, in particular a multilayer printed circuit board, the gearbox is in particular a planetary gearbox or a spur gearbox, the shaft part is in particular a gearbox shaft part and / or a motor shaft part, and the motor is in particular an electric motor. Thus, in particular the axial dimension of the circuit carrier part and thus the axial dimension of the adjustment device are reduced, in particular when the circuit carrier part is arranged in the housing and / or base part of the adjustment device. As a result, in particular the bending moments acting on the tool spindle, which can be connected by the adjustment device to the main drive, in particular to the adjustment device, are reduced. The tool spindle can therefore be operated at higher speeds, which results in shorter processing times and more cost-effective processing operations, i.e. improved removal performance. Due to the fact that two surface points of the surface area can be connected outside the circuit carrier part by a connecting straight line, the two surface points being both end points, the correspondingly shortened axial construction of the circuit carrier part preferably increases the maximum available space between the clamped and fixed workpiece and the adjustment device, in particular when the circuit carrier part is arranged in the housing and / or base part of the adjustment device, and a larger axial dimension of the workpiece, which the workpiece takes in the clamped state, can be selected.The resulting larger machining space therefore makes it possible to machine workpieces of different sizes and hard-to-reach workpiece contours of such workpieces in an improved manner, especially when the adjustment device is arranged in the machining center.

[0008] The circuit carrier part can also be formed to bend around the longitudinal axis, in particular by means of a recess, since two surface points of the surface area can be connected outside the circuit carrier part by a connecting line whose both end points are the two surface points. This reduces possible imbalances caused by a rotation of the adjustment device around the longitudinal axis, i.e. the connecting line whose both end points are the two surface points extends outside the circuit carrier part. This is because the shape of the surface area allows the mass of the circuit carrier part to be arranged uniformly, or at least more uniformly, around the longitudinal axis. In this way, it is particularly advantageous that the mass distribution of the circuit carrier part relative to the circumferential direction of the drive unit is more uniformly distributed around the longitudinal axis. The circuit carrier part can therefore be formed as a printed circuit board, preferably with a hollow cylinder or preferably with a plate, in particular with a recess, the longitudinal axis of which passes partly inside the hollow cylinder or in the recess, in particular in a hole. In the case of a hollow cylinder, the connecting line whose both end points are the two surface points mentioned for example connects two diametrically opposite surface points inside the hollow cylinder to each other. In the case of a board, i.e. in particular a printed circuit board, the connecting line, the two end points of which are the abovementioned two surface points, for example connects two surface points which are surface points of a surface which radially bounds a recess, i.e. in particular of an inner wall of a hole in the circuit carrier part. In these two cases, the volume of the installation space of the adjustment device is reduced in a particularly simple way, and at the same time also the imbalances which the circuit carrier part may cause when rotating about its longitudinal axis.

[0009] The fact that two surface points of the surface area can be connected outside the circuit carrier part by a connecting straight line whose two end points are two surface points improves the axial and radial accessibility of the adjustment device, which can therefore be provided in a particularly simple and cost-effective manner, for example when adjusting the adjustment device or when replacing a drive unit or parts thereof, etc.

[0010] Since two surface points of the surface area can be connected outside the circuit carrier part by a connecting straight line whose both end points are two surface points, the dimensions and material of the adjusting device can be reduced, especially if the circuit carrier part is arranged on the housing and / or base part of the adjusting device, since the housing or base part can be made shorter and lighter without compromising the functionality. Due to the shortened axial configuration of the circuit carrier part, the mass of the adjusting device can also be reduced at the same time, which has a positive effect on the stability of the main drive, especially the tool spindle.

[0011] It is specified here that the circuit carrier part can preferably be monolithic. It can for example comprise one, in particular a multi-layered, base plate, which can in particular be formed as a printed circuit board. It can also preferably be modular, for example comprise several, removably connected to one another, base plates, in particular printed circuit boards. The former is preferred for bending strength, the latter for design freedom.

[0012] Since the circuit carrier part is shaped to form an electronic control circuit, it is preferred that the circuit carrier part provides an electrical conductor path on and / or in the circuit carrier part, in particular between two circuit carrier part layers of the circuit carrier part, and / or that the circuit carrier part is provided with and / or capable of mounting at least one electronic component, such as a microchip, an electrical resistive element, a capacitor or an induction coil, by means of a circuit.

[0013] By control circuit is meant in particular a control circuit suitable for operating the drive unit in a defined manner on the basis of one or more input signals, i.e. for putting a motor of the drive unit, in particular an electric motor, into a state in which energy flows.

[0014] Preferably, the circuit carrier part already includes the control circuit. Still more preferably, the circuit carrier part comprises means for receiving said at least one input signal, for example comprising at least one electrical connection. Still more preferably, the circuit carrier part comprises means for processing said at least one input signal according to data, for example comprising at least one microchip. Still more preferably, the circuit carrier part comprises means for transmitting said at least one input signal in a data-processed and / or non-data-processed state to the drive unit.

[0015] A surface area of ​​the circuit carrier part facing the drive unit preferably means that the surface area of ​​the drive unit can be connected to the surface area of ​​the circuit carrier part by an azimuth line whose two end points are located on the drive unit and on the circuit carrier part, the azimuth line passing between these two different surface areas on the outside of the circuit carrier part. The azimuth line may be located in an azimuth plane whose normal vector contains an azimuth angle with the longitudinal axis, the azimuth angle being 0°, 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85° or more and less than 90°. The azimuth angle is preferably 0°, in which case the azimuth plane is oriented perpendicular to the longitudinal axis, allowing a particularly optimal reduction of the imbalance caused by the circuit carrier part, in particular in the radial and axial directions, respectively, with respect to the longitudinal axis.

[0016] Passing outside the circuit carrier part means in particular that the connecting straight line between two surface points passes or runs outside the materially solid area of ​​the circuit carrier part, in particular if the connecting straight line passes or runs through a recess, preferably a hole, in the circuit carrier part.

[0017] It is here stipulated that for the purposes of the present disclosure, the term "longitudinal axis" is to be understood in a geometric sense, unless otherwise stated. Particularly preferably, the longitudinal axis is aligned or can be aligned with the axis of rotation of the main drive, in particular the tool spindle.

[0018] In particular, the adjustment device is configured to extend along a longitudinal axis, which is preferably located inside the adjustment device.

[0019] The surface area of ​​the circuit carrier part facing the drive unit can preferably be composed of one or more curved individual surface areas of the circuit carrier part. Alternatively or additionally, the surface area of ​​the circuit carrier part facing the drive unit can be composed of several flat surface areas arranged at an angle to each other, for example with an internal surface angle of 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160°, 165°, 170° or 175°. The flat surface parts can preferably be arranged in pairs, each forming a right angle, i.e. an internal angle of 90°. It is also conceivable and possible for the surface area of ​​the circuit carrier part facing the drive unit to be composed of the abovementioned curved and flat surface areas.

[0020] The surface area of ​​the circuit carrier part facing the drive unit is preferably the surface area that is initially formed by the recess in the circuit carrier part, which is a cost-effective measure that saves installation space.

[0021] In the direction of viewing the circuit carrier part from the drive unit, the surface area of ​​the circuit carrier part facing the drive unit is preferably seen as a concave surface area of ​​the circuit carrier part. By this measure, the imbalance caused by the circuit carrier part is further reduced and at the same time the installation space volume of the adjustment device is reduced. Particularly preferably, the surface area facing the drive unit is hemispherically concave when viewed in the direction of the drive unit.

[0022] In the sense of the present disclosure, the drive unit is configured to drive the cutting tool receptacle, whereby an adjustment movement can be performed. For this purpose, the drive unit comprises, for example, a motor, in particular an electric motor, with a motor shaft. Further preferably, the motor shaft is operatively connected to the gearbox, in particular by means of a gear connection. The gearbox particularly preferably comprises a gearbox output shaft, whereby the rotational speed n1 of the gearbox output shaft in the gearbox driven state is lower than the rotational speed n2 of the motor shaft. The gearbox is therefore designed as a reduction gearbox. This allows a particularly precise adjustment of the cutting tool receptacle. Preferably, the speed n2 of the motor shaft is at least 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000 or more times greater than the speed n1 of the gearbox output shaft. This measure makes it particularly suitable for use in compact, high-speed rotating electric motors, for example as used in the field of toy construction.

[0023] Preferably, the adjustment movement is linear, as this is particularly convenient for drilling holes, for example.More preferably, the adjustment movement is also a linear translation.

[0024] The adjustment movement is preferably oriented or can be oriented radially, i.e. in particular transversely to the longitudinal axis. Preferably, the adjustment movement can be assigned a corresponding radial, in particular maximum possible, distance. The distance is 100 mm, 95 mm, 90 mm, 85 mm, 80 mm, 75 mm, 70 mm, 65 mm, 60 mm, 55 mm, 50 mm, 45 mm, 40 mm, 35 mm, 30 mm, 25 mm, 20 mm, 15 mm, 10 mm, 9 mm, 8 mm, 7 mm, 6 mm, 5 mm, 4 mm, 3 mm, 2 mm, 1 mm, 0.9 mm, 0.8 mm, 0.7 mm, 0.6 mm, 0.5 mm, 0.4 mm, 0.3 mm, 0.25 mm, 0.2 mm, 0.15 mm, 0.1 mm, 500 μm, 400 μm, 300 μm, 100 μm, 50 μm, 25 μm, 10 μm, 5 μm, 1 μm, 0.5 μm, or 0.25 μm or less. These are particularly convenient adjustment ranges for processing metal workpieces.

[0025] Preferably, the drive unit is arranged such that the adjustment movement is performed in linear increments of 10 μm, 9 μm, 8 μm, 7 μm, 6 μm, 5 μm, 4 μm, 3 μm, 2 μm, 1 μm or 0.5 μm, which can also be expressed by the corresponding incremental rotation angles of the gear shaft.

[0026] The drive unit is preferably of self-locking design, so that when the drive unit is not driven, the adjusted position of the tool receptacle is preferably constant radially, i.e. in particular the radial distance to the longitudinal axis of the tool receptacle remains constant, so that when a cutting tool is connected to the cutting tool receptacle, the adjustment device advantageously provides for precise chip removal processing.

[0027] The cutting tool receiving part is preferably designed for reversibly releasably fixing the cutting tool. Preferably, at least one mechanical fixing part, in particular a threaded element, is further provided, which can be reversibly releasably connected to at least one threaded element of the cutting tool receiving part. This measure makes it particularly easy to exchange the cutting tool.

[0028] The circuit carrier part preferably comprises at least one or more electrical insulating layers, preferably at least two insulating layers, which may comprise, for example, a plastic, in particular a hardened plastic. In the case of at least two insulating layers, it is preferred that one or more electrical conductor paths, preferably comprising copper or its alloys, gold or its alloys or silver or its alloys, are arranged and / or are positionable between at least two adjacent insulating layers. Similarly, the material of the conductor path or paths may also be selected in the case of one insulating layer, which conductor paths are arranged and / or are positionable on its surface.

[0029] More preferably, the circuit carrier part has a locating recess, preferably a hole, into which electrical contacts of one or more components forming the electronic control circuit can be located, preferably at least partially, form-fittingly, so that said electrical contacts can thus be connected to the circuit carrier part and its electrical conductor path or paths by one or more solders.

[0030] The circuit carrier part preferably already comprises an electronic control circuit, for example by providing a microchip on the circuit carrier part. This is a particularly advantageous measure, as it provides a particularly cost-effective control of the drive unit. Alternatively or additionally, at least one electrical resistance element, at least one capacitor or at least one electrical coil, in particular at least one induction coil, are also conceivable for forming the electronic control circuit.

[0031] Preferably, the adjustment device comprises a control assembly comprising said circuit carrier part. More preferably, the control assembly comprises a circuit carrier part in which an electronic control circuit is formed. The control assembly is preferably arranged to operate the drive unit in a predetermined manner, for example by the circuit carrier part comprising receiving and signal processing means.

[0032] The cutting tool receptacle can preferably be plate-shaped, and the support plate of the cutting tool receptacle can have a contact surface with a groove. This contact surface can mesh and / or engage with a contact surface of a cutting wedge receptacle of the cutting tool, which is in particular U-shaped. This contact surface of the cutting wedge receptacle has a corresponding shape with the support plate. The cutting wedge receptacle, which may be included in the adjustment device, is preferably U-shaped. The corresponding cutting wedge, which may be included in the adjustment device, has at least one cutting edge and a clearance surface assigned thereto and a rake surface assigned thereto. These cutting wedge receptacles and the cutting wedges may form a cutting tool, which may be a milling cutter, a drill, a reamer or another cutting tool depending on the shape of the cutting wedge receptacle and the structure of the cutting wedge. It is also conceivable and possible that several cutting wedges are in and / or on the cutting tool.

[0033] According to a further embodiment of the adjusting device, the connecting line passes through the drive unit, so that the drive unit can be surrounded particularly closely at least partially tangentially by the circuit carrier part. This further reduces the volume of the installation space of the adjusting device, particularly in the axial direction, and also the imbalance caused by the circuit carrier part. Passing through preferably means that the connecting line enters in a geometric sense at one point of the drive unit and exits in a geometric sense at another point of the drive unit. These two points are preferably diametrically opposed to each other. Preferably, the connecting line passes through the drive unit, for example in the region of a gearbox of the drive unit, in particular a planetary or spur gearbox and / or a shaft section of the drive unit and / or a motor of the drive unit, in particular an electric motor, in particular a gearbox shaft section and / or a motor shaft section.

[0034] It is conceivable and possible that the connecting straight line is a tangent to the drive unit, for example in the region of a gearbox of the drive unit, in particular a planetary or spur gearbox and / or a shaft section of the drive unit and / or a motor of the drive unit, in particular an electric motor, in particular a gearbox shaft section and / or a motor shaft section. This is an example of a boundary where the connecting straight line passes through the drive unit. This is another way to save installation space. However, it is also conceivable and possible that this example of a boundary does not apply.

[0035] According to a further embodiment of the adjustment device, the drive unit is arranged to be implemented at least partially in a recess of the circuit carrier part. According to this, the circuit carrier part has a recess, which is obtained, for example, by drilling and / or milling. Here, the surface area of ​​the circuit carrier part facing the drive unit is the surface area of ​​the surface of the circuit carrier part which radially bounds the recess, i.e. in particular the inner wall of the hole. As a result, the drive unit can be at least partially even more closely surrounded by the circuit carrier part in the tangential direction. This further reduces the volume of the installation space and the imbalance caused by the circuit carrier part. The recess is preferably assigned to two openings of the circuit carrier part which are connected to each other in a communicating manner and through which the longitudinal axis partially passes. The openings are preferably of circular or polygonal shape.

[0036] It is specified here that the recess in the circuit carrier part can be annularly closed, for example obtained by drilling and / or milling in a feed direction parallel to the longitudinal axis, or radially open, for example obtained by drilling and / or milling in a feed direction parallel and transverse to the longitudinal axis. With annularly closed recesses, the imbalance caused by the circuit carrier part can be reduced particularly effectively. With radially open recesses, the radial installation of the circuit carrier part can be achieved particularly effectively by pressing laterally onto the drive unit.

[0037] Particularly preferably, the recess, in the sense of the present disclosure, is circular, the coordinates of whose centre correspond to the coordinates of the preferably two-dimensional centre of gravity of the circuit carrier part, in particular in the absence of a circuit, so that imbalances caused by the circuit carrier part are reduced in a particularly optimal manner.

[0038] Preferably, the flat surface portion of the circuit carrier part adjacent to the recess can be assigned a normal vector oriented parallel to the longitudinal axis, whereby the circuit carrier part is oriented perpendicular to the longitudinal axis at least in the area of ​​the surface portion, thereby saving a volume of installation space.

[0039] According to a further embodiment of the adjustment device, the recess is delimited by a circumferentially closed edge of the circuit carrier part. In this way, a circumferentially closed, preferably annular, recess is preferably provided. The circuit carrier part thus surrounds the drive unit in a circumferentially closed manner in the circumferential direction of the drive unit. This surrounding is, for example, in the region of a gearbox of the drive unit, in particular a planetary or spur gearbox and / or a shaft section of the drive unit and / or a motor of the drive unit, in particular an electric motor, in particular a gearbox shaft section and / or a motor shaft section. The circumferentially closed edge is obtained in particular by drilling and / or milling the circuit carrier blank. This further reduces the installation space volume and the imbalance caused by the circuit carrier part, since in particular the circuit carrier part can be arranged rotationally symmetrically around the longitudinal axis. The circumferentially closed edge is further preferably rotationally symmetric with the longitudinal axis as the corresponding axis of rotational symmetry. The circumferentially closed edge can preferably be circular or polygonal, i.e. preferably square, rectangular, quadrilateral, pentagonal, hexagonal, heptagonal, octagonal, nonagonal or decagonal. Preferably, in the case of polygonal recesses, the corners, i.e. the transitions between two adjacent surface regions, are characterized by a finite radius of curvature and these transitions are of continuous shape. It is further preferred that the polygonal recesses are equilateral.

[0040] The centre of gravity of the circuit carrier part is preferably arranged within the recess, so that the circuit carrier part is balanced or at least substantially balanced, which effectively increases the mobility of the adjustment device.

[0041] The circuit carrier part is preferably formed in the shape of a plate. This is a particularly advantageous measure, since the volume of the installation space is further reduced. Furthermore, the circuit carrier part is preferably designed as a circular, in particular multi-layer, printed circuit board, more preferably along its periphery. If the circuit carrier part is formed in the shape of a plate, a preferably constant plate thickness can be assigned, which reduces the risk of collisions when assembling the circuit carrier part and at the same time saves the volume of the installation space.

[0042] According to a further embodiment of the adjustment device, the maximum longitudinal dimension of the circuit carrier part, taken parallel to the longitudinal axis, is less than or equal to the maximum transverse dimension of the circuit carrier part, taken parallel to a transverse axis oriented perpendicular to the longitudinal axis. This reduces the volume of the installation space, particularly in the longitudinal direction. If the circuit carrier part is designed in a plate-like manner, this can be achieved by the circuit carrier part being correspondingly inclined or, even more preferably, oriented perpendicular to the longitudinal axis.

[0043] According to a further embodiment of the adjusting device, a motion converter is provided which can be dynamically coupled to the cutting tool receiving part and the drive unit in order to convert the motion of the moving part of the drive unit into an adjusting motion. This allows the motion of the moving part, for example a rotational motion, provided by the drive unit, to be advantageously converted into an adjusting motion, which is in particular linear and transverse to the longitudinal axis. Here, the moving part can be, for example, a gear output shaft of a gearbox of the drive unit, in particular a planetary or spur gearbox, and / or a motor shaft of a motor, in particular an electric motor, for example a pinion. Particularly preferably, the motion converter is designed as an eccentric gear, which allows the rotational motion of the drive unit and / or of the motor, in particular an electric motor, in particular a gear output shaft of a pinion, in particular a planetary or spur gear, to be converted into an adjusting motion, which is in particular linear and transverse to the longitudinal axis. Particularly preferably, in order to further increase the compactness of the adjusting device, the motion converter is arranged adjacent to the circuit carrier part.

[0044] The motion converter is preferably dynamically coupled to the drive unit in such a way that the adjusted position of the cutting tool receptacle when the motion converter is not driven remains constant, preferably radially, i.e. transversely to the longitudinal axis. This advantageously provides a precise chip removal process by the adjustment device when a cutting tool is connected to the cutting tool receptacle. The self-locking provided in this way can be achieved in particular by a gear of the drive unit, in particular a planetary or spur gear, if this gear is designed as a reduction gear.

[0045] According to a further embodiment of the adjustment device, the motion converter has a drive, which when the motion converter is driven can rotate around the rotation axis and engage with a drive guide of the cutting tool receptacle facing in a different direction from the rotation axis, the cutting tool receptacle having the drive guide. This provides a particularly space-saving eccentric mechanism, which also allows the adjustment movement to be realized in a particularly robust manner. Preferably, the rotation axis is aligned with the longitudinal axis, further saving on the volume of the installation space in the axial direction. The drive is preferably formed as an axial projection of the coupling, for example a shaft journal, preferably a cylindrical shaft journal. This coupling is arranged rotatably relative to the base part and / or the housing of the adjustment device and can be formed, for example, in the form of a disk. The coupling can then be rotated, for example, around the longitudinal axis, for example by being mounted on a rolling or sliding body. This is a particularly cost-effective and mechanically robust measure. The drive can also be called an eccentric pin. The drive guide is preferably oriented transversely to the longitudinal axis. The drive guide is preferably formed as a recess, preferably a longitudinal groove, in the cutting tool receiving part, into which the drive engages. This is a particularly cost-effective and mechanically robust measure, particularly with regard to the interaction with the drive. Transverse to the longitudinal axis may for example mean that the area of ​​projection of the orthogonal projection of the drive guide into a projection face perpendicular to the longitudinal axis is greater than the area of ​​projection of the orthogonal projection of the drive guide into a projection face parallel to the longitudinal axis. The drive guide is preferably radial to the longitudinal axis. The motion converter preferably has a recess for positive and / or non-positive reception of the drive. The coupling is preferably connected to a moving part of the drive unit in a rotationally fixed manner. The moving part may then be a gear shaft, in particular a gear output shaft, of a gearbox, preferably a planetary or spur gearbox, of the drive unit, and / or a motor shaft, in particular a pinion, of a drive unit motor, preferably an electric motor. The drive unit can then drive the coupling in rotation, whereby the drive turns around the longitudinal axis.That is, the drive is located at a non-zero radial distance from the longitudinal axis and orbits preferably in a circular path about the longitudinal axis.

[0046] According to a further embodiment of the adjustment device, the motion converter is mounted in the bearing housing and the drive unit is reversibly and removably connected to one side of the bearing housing. This measure allows the adjustment device to be assembled or disassembled particularly simply. In the bearing housing, in particular a coupling with the drive part, in particular with an axial projection, for example in the form of a shaft journal, preferably a cylindrical shaft journal, can be arranged on a rolling or plain bearing. In particular a mounting plate of a gearbox of the drive unit, in particular a planetary or spur gearbox, and / or a mounting post connected to a motor of the drive unit, preferably an electric motor, can be arranged on the bearing housing. The bearing housing is preferably connected to the housing and / or base part of the adjustment device in a non-rotatable manner.

[0047] According to a further embodiment of the adjustment device, at least one slide is provided for sliding in and / or on the drive guide, the drive being operably connected to the slide. This provides an optimal measure for sliding in the drive guide, which in particular increases the efficiency and therefore the effectiveness of the motion converter. This increases the efficiency and therefore the effectiveness of the adjustment device. Preferably, the slide is formed as a slider, whose structure is adapted to the shape of such a groove, in case the drive guide is formed as a longitudinal groove, so that the frictional resistance is further reduced. The slide preferably has a recess for receiving the drive. Preferably, the slide is formed in such a way that the maximum free sliding distance of the slide in the drive guide, in particular in the longitudinal groove, in the sliding direction is shorter than the radial length of the slide. This measure provides a particularly stable guidance of the slide in the drive guide.

[0048] According to a further embodiment of the adjustment device, the drive is mounted in and / or on the slide in a rolling and / or plain bearing. This further increases the efficiency of the motion converter and thus the adjustment device, since according to this further embodiment, friction between the slide and the drive is reduced. If the slide is mounted on rolling bodies, it is preferably mounted by at least one needle bearing and / or at least one ball bearing. This is a particularly useful measure for reducing friction.

[0049] According to a further embodiment of the adjusting device, the circuit carrier part is connected in a rotationally fixed manner to a base part of the adjusting device which is rotatable about a longitudinal axis. Here, the base part has a connection part for connection with a tool spindle. This further increases the compactness of the adjusting device, since the base part serves on the one hand to fix the circuit carrier part and on the other hand to connect the circuit carrier part to the tool spindle, and when the base part rotates, the circuit carrier part rotates at the rotation speed of the base part or the tool spindle. This rotationally fixed connection can be realized directly or indirectly. When the connection is performed directly, the circuit carrier part is connected directly to the base part in a rotationally fixed manner, for example by a screw element connection, in which at least one screw for fixing the circuit carrier part is arranged in a threaded part of the base part. When the connection is performed indirectly, the circuit carrier part is connected in a rotationally fixed manner to a housing different from the base part, and at least one screw for fixing the circuit carrier part is arranged in a threaded part of the housing and connected to the base part in a rotationally fixed manner. The connection part is especially designed to connect the base part and thus the adjustment device with the anti-rotation device and / or the axial pretensioning means of the base part.

[0050] According to a further embodiment of the adjusting device, the drive unit is arranged axially. This allows the imbalance caused by the drive unit to be particularly effectively reduced when the adjusting device rotates around the longitudinal axis. Furthermore, in the case of one or more lubricants which the drive unit may contain in order to reduce the friction of the parts which are movable relative to one another, centrifugation of these parts is avoided and the service life of the drive unit and thus of the adjusting device is improved. The parts which are movable relative to one another may for example be a motor shaft of an electric motor of the drive unit and a corresponding bearing and / or a gear shaft of a gearbox of the drive unit and a corresponding bearing and / or two or more meshing gears of a gearbox of the drive unit, for example a planetary gearbox or a spur gearbox. Furthermore, it is particularly preferred that the longitudinal axis is aligned with the motor of the drive unit, in particular with the motor shaft of the electric motor and / or with the gear output shaft of a gearbox of the drive unit, for example a planetary gearbox or a spur gearbox.

[0051] According to a further embodiment of the adjustment device, the drive unit and the motion converter are connected to one another to form a first assembly which is axially dismantlable or axially assemblable separately from the circuit carrier part, whereby the adjustment device can be dismantled, for example during maintenance, and reassembled, for example during assembly. It gets easier. This is because in each case the time required is reduced and at the same time it is possible to pre-assemble the first assembly. Thus, the drive unit, in particular if it comprises a gear, may be reversibly releasably fastened by at least one screw element to a bearing housing in which the motion converter is rotatably mounted. The drive unit and the motion converter are thereby connected to each other by the bearing housing and form an axially dismountable or axially assemblable first assembly. By being axially dismountable or axially assemblable, the first assembly can in particular be accessed from one side of the adjusting device, for example the front side, which further contributes to a simple removal or installation. Axially dismountable or axially assemblable separately from the circuit carrier part means that, in particular when removing or installing the first assembly, the circuit carrier part remains in and / or on the housing or base part of the adjusting device.

[0052] According to a further embodiment of the adjustment device, the drive unit, the motion converter, the cutting tool receiving part and the circuit carrier part are connected to one another to form an axially disassembleable or axially assemblable second assembly, whereby the adjustment device can be disassembled, e.g. during maintenance, and reassembled, e.g. during assembly, in a much easier manner. It gets easier. This is because in each case the time required is reduced and it is possible to preassemble the second assembly at the same time. In this way, the drive unit, in particular if it comprises a gear, may be reversibly releasably fixed by at least one screw element to a bearing housing in which the motion converter is rotatably arranged. This allows the drive unit and the motion converter to be assembled to form an axially disassembled or axially assemblable first subassembly by at least one screw element. The drive unit and the motion converter are connected to one another with the help of a bearing housing and form an axially disassembled or axially assemblable first subassembly. The bearing housing is reversibly releasably fixed in and / or on the housing of the adjustment device, in particular by at least one screw element. The housing has a sliding surface for sliding the cutting tool receptacle. The cutting tool receptacle is axially locked by a housing cover, which is reversibly releasably connected to the housing, in particular by at least one screw element. The second subassembly is formed for example in this way. By being axially disassemblable or axially assemblable, the second assembly can in particular be accessed from one side of the adjustment device, for example the front side, which further contributes to easy removal or installation.

[0053] According to a further embodiment of the adjusting device, the circuit carrier part is designed for data communication with the drive unit on the side opposite the cutting tool reception part. This makes assembly and disassembly easier, since the drive unit, which may for example be a component of the first and / or second assembly, can be particularly simply separated from or connected to the circuit carrier part. That the circuit carrier part is designed for data communication with the drive unit on the side opposite the cutting tool reception part means that preferably at least one plug-in contact is provided for connection with a conducting means, in particular a multi-core power cable, which conducting means is preferably connected to a printed circuit board of the electric motor of the drive unit.

[0054] According to a further embodiment of the adjustment device, the circuit carrier part has a functional surface facing away from the cutting tool receptacle and / or towards the cutting tool receptacle for standard assembly of the circuit. In the case of a functional surface facing away from the cutting tool receptacle, the functional surface has at least one elevated portion in the mounted state in which the circuit carrier part is or will be equipped with at least one component of the electronic control circuit according to the circuit, so that the circuit carrier part can be positioned particularly effectively close to the cutting tool receptacle. In the case of a functional surface facing towards the cutting tool receptacle, the functional surface faces the corresponding assembler during assembly, so that the assembler can monitor the assembly accordingly and the risk of assembly-related damage to the functional surface is minimized.

[0055] According to a further embodiment of the adjusting device, data transmission means are provided for data communication with the drive unit, the surface area facing the drive unit at least partially facing the data transmission means. This provides a particularly simple construction of the adjusting device. The data transmission means is preferably designed as a multi-core power cable, in particular a multi-core power cable of flat design, which is threaded into a recess in the circuit carrier part. One end of the data transmission means is preferably connected in the sense of a plug contact with the circuit carrier part, and the other end of the data transmission means is preferably connected in the sense of another plug contact with a second circuit carrier part, preferably having power electronics or a correspondingly designed circuit. The second circuit carrier part is preferably arranged perpendicular to the longitudinal axis. The second circuit carrier part is preferably configured as a printed circuit board. Preferably, the second circuit carrier part is operably connected to a motor of the drive unit, preferably an electric motor, i.e. in particular to one or more stator windings of the electric motor. The data communication can preferably be a unidirectional or bidirectional transmission of an electric signal, which can also be called a control or feedback signal. The data communication can preferably be a unidirectional or bidirectional transmission of an electrical signal, which can be referred to as a control or feedback signal, provided by a control circuit of the circuit carrier part, which can be referred to as a first circuit carrier part, to the second circuit carrier part, whereby the drive unit can drive the cutting tool receiving part in a defined manner, preferably by means of gears and / or motion converters of the drive unit, to perform an adjustment movement, preferably linear, preferably transverse to the longitudinal axis.

[0056] According to a further embodiment of the adjusting device, in order to measure the adjustment distance assigned to the adjustment movement, measuring means are provided adjacent to the circuit carrier part, which is designed to provide a control signal on the basis of measurement data obtained by the measuring means. This is advantageous, in particular in view of the aspect that the cutting tool wears, in particular in the area of ​​one or more cutting wedges, since it can be checked whether a predefined adjustment movement is maintained. The measuring means preferably comprises electronic data processing means for processing the measurement data obtained by the measuring means, which is or can be provided on the circuit carrier part according to the circuit. The measuring means preferably comprises a deviation measuring device designed to detect deviations according to inductive and / or resistive and / or capacitive and / or optical principles. Further preferably, the cutting tool receiving part has at least one scale, and the base part and / or the housing of the adjusting device, on which the cutting tool receiving part is placed relative to the base part and / or the housing so that the adjustment movement can be performed, has a sensor capable of sensing the scale, or vice versa.

[0057] According to a further embodiment of the adjustment device, the drive unit comprises a gear and an electric motor operably connected to said gear, the gear shaft of which can be meshed with the motion converter, the circuit carrier part being arranged perpendicular to the gear axis assigned to the gear shaft. This is a particularly advantageous measure, since depending on the number, arrangement or size of the corresponding gears, a number of different speeds of the gear shaft, in particular in the form of a gear output shaft, can be provided at a predefined drive speed of the motor shaft of the electric motor by means of the gear transmission, which may be a planetary gear transmission and / or a spur gear transmission. The volume of the installation space can also be reduced by arranging the circuit carrier part perpendicular to the gear axis, for example by arranging the normal vector of the surface portion of the circuit carrier part parallel to the gear axis.

[0058] According to a further embodiment of the adjustment device, the adjustment device comprises a coolant channel system, which is connected to communicate with the coolant channel system of the cutting tool receiving part, and the circuit carrier part is arranged adjacent to at least one of these coolant channel systems. By filling these two coolant channel systems with coolant, the cutting tool can be cooled in chip removal state by the two coolant channel systems, and the removed chips can be transported, for example, from the inner wall of the hole, so that the adjustment device is optimized for increasing the service life of the cutting tool. The coolant channel system of the cutting tool receiving part preferably comprises coolant channel openings, by which the coolant can exit from the cutting tool receiving part. Preferably, as a measure against coolant leakage, sealing means are provided for sealing the interface between the cutting tool receiving part and the housing and / or base part of the adjustment device, on which the cutting tool receiving part can or is installed so as to be relatively movable.

[0059] According to a further embodiment of the adjustment device, the adjustment device is designed for connection with a tool spindle. This allows the adjustment device to be effectively connected to the tool spindle and in this way the rotational movement of the tool spindle can be transferred to the adjustment movement and thus to the cutting tool receptacle. The adjustment device preferably has a tool spindle or a hollow tapered shank for connection with the tool spindle. This is a particularly practical measure which provides a non-positive and a positive connection with a correspondingly shaped tool spindle.

[0060] According to a further embodiment of the adjustment device, the adjustment device comprises a cutting tool, which is reversibly releasably and operably connected to the cutting tool receptacle, so that in the operating state of the drive unit, the cutting tool performs an adjustment movement. Here, the cutting tool has at least one cutting wedge for chip removal. This effectively provides an adjustable cutting tool, which can be driven in rotation about its longitudinal axis at a relatively high speed, since the adjustment device does not cause imbalance, or at least to a lesser extent, and also due to its compact design. According to this further embodiment, the adjustment device is preferably designed as a facing head and / or a boring head. The cutting tool may preferably be a cutting tool, a drilling tool, a milling tool or a reamer tool, etc. When the adjustment device is provided with measuring means according to this further embodiment, it is preferable to provide a measuring tool, which can measure the caliber by contact with the inner wall of the hole, in particular of the cutting wedge.

[0061] According to a further advantageous aspect of the present invention, the invention is directed to adjusting a cutting tool, preferably radially, i.e. transversely to the longitudinal axis, using an adjustment device and / or an embodiment and / or further embodiment of the adjustment device as defined in any one of claims 1 to 13 herein.

[0062] According to a further advantageous aspect, the invention is directed to a method for manufacturing an adjustment device for adjusting a cutting tool, which can be driven in rotation about a longitudinal axis, said method comprising at least the following steps: a) supporting a cutting tool receiving part for performing an adjustment movement; b) providing a drive unit for driving the cutting tool receiving part; c) optionally dynamically coupling the cutting tool receiving part with a movement converter for converting a movement of a movement part of the drive unit into an adjustment movement, and optionally dynamically coupling the movement part with the movement converter; d) providing a circuit carrier part for forming at least one electronic control circuit provided for controlling the drive unit; e) arranging the circuit carrier part such that a surface area of ​​the circuit carrier part faces the drive unit; f) arranging the circuit carrier part such that two surface points of the surface area can be connected outside the circuit carrier part by a connecting straight line whose two end points are said two surface points. In this way, an adjustment device is manufactured with a reduced volume of installation space, which is at the same time designed to reduce the imbalance caused thereby. Before and / or during step d), a recess may be formed in and / or on the circuit carrier part, for example by drilling and / or milling, and in step f) the drive unit may be arranged to be at least partially implemented within the recess, in particular if the recess is a hole.

[0063] The problem is further solved by a cutting device according to claim 14.

[0064] The cutting device comprises a cutting tool, an adjustment device operably connected to the cutting tool for adjusting the cutting tool, and a rotationally drivable main drive unit part operably connected to the adjustment device for providing a machining movement of the cutting tool, the adjustment device being designed according to any one of claims 1 to 14 and / or the embodiments and / or further embodiments of the adjustment device described herein. This provides a cutting device which is designed to reduce the volume of the installation space, particularly in the region of the adjustment device, and at the same time to reduce the imbalance caused by the adjustment device. With this cutting device, the main drive unit part can be operated preferably at a relatively high rotational speed, so that the workpiece can be located particularly close to the cutting tool for removing chips from the workpiece to form a predetermined profile. Furthermore, the longitudinal axis is preferably the longitudinal axis of the main drive unit part, e.g. a tool spindle which may be operably connected to a machining centre. The adjustment movement is preferably oriented transversely to the longitudinal axis and is linear.

[0065] According to a further advantageous aspect of the present disclosure, the present disclosure is directed to cutting a workpiece, preferably made of metal, using the cutting device and / or embodiments and / or further embodiments of the cutting device as defined in claim 14 herein.

[0066] Further advantages and benefits of the present invention will become apparent from the following description of the embodiments with reference to the accompanying drawings. [Brief description of the drawings]

[0067] [Figure 1] 1 shows a schematic perspective view of an adjustment device according to one embodiment, viewed obliquely from the upper right. [Diagram 2] 2 shows a schematic front view of the adjustment device in FIG. 1, seen in the direction of the arrow II in FIG. [Diagram 3] 2 shows a schematic cross-sectional view of the adjustment device in FIG. 1 along the section line III in FIG. 2, seen in the direction of the arrow assigned to the section line III in FIG. 2. [Figure 4]4 shows a schematic cross-sectional view of the adjustment device in FIG. 1 along section line IV in FIG. 3, seen in the direction of the arrow assigned to section line IV in FIG. 3; [Diagram 5] 2 shows a schematic rear view of the adjustment device in FIG. 1, seen in the direction of the arrow V in FIG.

[0068] In Figures 1 to 5, identical, similar or similarly functioning elements are assigned the same reference numerals, and repeated descriptions of these elements will be omitted in the following description to avoid redundancy.

[0069] FIG. 1 shows a schematic perspective view of an embodiment of the adjusting device 1, seen obliquely from the top right. The adjusting device 1 can be rotated in either direction of rotation 2a around a longitudinal axis 2. Thus, when a cutting tool (not shown) is connected to the receiving plate 3 and the adjusting device 1 is rotated around the longitudinal axis 2 by a spindle (not shown), the cutting tool rotates around the longitudinal axis 2. For this purpose, the adjusting device 1 is reversibly releasably fixed by a spindle to a connection part 8 of the base part 12, and the cutting tool is reversibly releasably fixed to a grooved surface 4 of the receiving plate 3 via a tool receiving part (not shown) by a screw (not shown) which can engage in a threaded hole 5 of the receiving plate 3. The groove of the surface 4 engages with a corresponding groove of the tool receiving part. This results in a form-fit across the groove line and the positioning of the tool receiving part is guided in a direction parallel to the groove line. The receiving plate 3, and therefore the cutting tool, can be adjusted by a motor in a direction 6 radial to the longitudinal axis. This allows the cutting tool to be moved around the longitudinal axis 2 according to the adjustment of the rolling circle diameter, for example, in order to drill a hole in the workpiece with a diameter corresponding to the rolling circle diameter. The adjustment of the receiving plate 3 in one of the directions 6, i.e. the back and forth movement for adjusting the rolling circle diameter, is decoupled from the rotation of the adjusting device 1 around the longitudinal axis 2. The rolling circle diameter is therefore independent of the rotation speed assigned to the rotation of the adjusting device 1 around the longitudinal axis 2. The maximum adjustment of the receiving plate 3 in one of the directions 6 is, for example, 0.25 mm, measured transversely to the longitudinal axis 2. However, different adjustment amounts of the receiving plate 3 are also conceivable and possible.

[0070] It can also be seen in Figure 1 that the receiving plate 3 has holes 7 which are connected with a coolant channel system which will be considered in more detail with reference to Figure 3. The holes 7 further serve as anchors for the anchoring parts of the tool receiving part which are biasedly locked in their inserted state in the holes 7 by means of pins 7a.

[0071] 1 also shows that the receiving plate 3 protrudes through an opening 9a in the cover plate 9, which forms a radial stop for the receiving plate 3 along the wall of the cover plate 9 which defines it. The cover plate 9 is adapted to be fitted into a housing 11 with a corresponding thread by means of a hole 9b in the cover plate 9 (a similar hole 9b on the opposite side to the visible hole 9b is shown in the drawing). 3 2) in the plan view of the housing 11. This causes the cover plate 9 to be locked tangentially and centered on the longitudinal axis 2, and the receiving plate 3 to be locked axially. Between the housing 11 and the cover plate 9, a casing ring 10 made of an aluminum alloy (glass or steel are conceivable and possible in each case instead of the aluminum alloy), is subjected to an axial compressive stress, so that the transition area between the cover plate 9 and the housing 11 is sealed.

[0072] The cover plate 9 and the housing 11 are screwed to the housing 11 with a corresponding thread by another larger threaded bolt (not shown) which is or can be inserted into a corresponding hole 9c in the cover plate 9 (all visible in the plan view of FIG. 2), thereby forming an assembly which can be axially disassembled or axially assembled by loosening or tightening the threaded bolt. In this way, an assembly is formed which can be axially disassembled or axially assembled by loosening or tightening the threaded bolt, including the receiving plate 3, the cover plate 9, the casing ring 10, the housing 11, as well as a motorized adjustment mechanism attached to the housing 11, not seen in FIG. 1. The motorized adjustment mechanism will be described in more detail with reference to FIG. 3.

[0073] The housing 11 is provided on the circumference with threaded holes 11a for fastening threaded bolts which, if necessary, can be screwed into the threaded holes 11 to different depths to compensate for imbalances of the adjustment device and for this purpose the centre of gravity of the adjustment device 1 is thus located on the longitudinal axis 2.

[0074] The housing 11 is connected to the base part 12 of the adjustment device 1 by a threaded bolt, which is arranged or can be arranged to pass partially through a corresponding hole in the base part 12, where the housing 11 has a corresponding threaded hole.

[0075] Figure 2 shows a schematic front view of the adjustment device 1 in the direction of the arrow II in figure 1. It can be particularly seen in figure 2 that the direction 6 is radial to the longitudinal axis 2.

[0076] FIG. 3 shows a schematic cross-section of the adjusting device 1 along the section line III in FIG. 2, in the direction of the arrow assigned to the section line III in FIG. 2. In FIG. 3, the internal structure of the adjusting device 1 is particularly clear. From FIG. 3, it can be seen that the electric motor 13 is cantilevered in the adjusting device 1. The electric motor 13 is furthermore arranged around the longitudinal axis 2, so that the electric motor 13 is substantially balanced (i.e. insofar as the electric motor 13 is rotationally symmetrical) when the adjusting device 1 rotates around the longitudinal axis 2. This can also be referred to as an axial arrangement of the electric motor 13. When the electric motor 13 is activated, for example by an induction device (not shown), for example by passing a current through its stator windings (not shown), the pinion 13a of the electric motor 13, which is connected to the motor shaft of the electric motor 13 in such a way that it cannot rotate, rotates around the longitudinal axis 2. Here, the pinion 13a is aligned with the longitudinal axis 2. The pinion 13a meshes with the multi-stage spur gear 13b, thereby reducing the relatively high speed of the pinion 13a, e.g. 1000 revolutions per minute, to a relatively low speed, e.g. 1 revolution per minute, of the output shaft 13c of the spur gear 13b. It is noted here that the electric motor 13 including the pinion 13a together with the spur gear 13b including the gear output shaft 13c form a drive unit.

[0077] Pinion 13 so it cannot rotate a The gear 13b, which is screwed to the electric motor 13 outside the region of the bearing 13, is connected to the bearing cover 15 by means of screws 14. The output shaft 13c is arranged through the bearing cover 15 and is non-rotatably connected to a journal carrier wheel 16, which is mounted in the bearing cover 15 so as to be rotatable about the longitudinal axis 2 by means of a rolling ball bearing 17. The radially inner ring 17a of the rolling ball bearing 17 is preloaded axially by a threaded ring 17b, which is screwed to the journal carrier wheel 16. The ring 17a is thereby pressed against a radially protruding stop of the journal carrier wheel 16. The radially outer ring 17c of the rolling ball bearing 17 is preloaded axially against the housing 11 by a retaining plate 17d, which is hereby screwed to the housing 11. To set a defined preload, the retaining plate 17d and the bearing cover 15 are spaced apart by a tangential circumferential gap. Here, the retaining plate 17d is Bearings The cover 15 and thus the journal carrier wheel 16 mounted therein are connected to the housing 11. This allows the journal carrier wheel 16 to be driven by the electric motor 13 via the gear output shaft 13c. In this driven state, the eccentric pin 18, which is monolithically connected to the journal carrier wheel 16, rotates in a circular orbit around the longitudinal axis 2, since the axis of rotational symmetry of the eccentric pin 18 is radially offset with respect to the longitudinal axis 2.

[0078] Electric motor 13, gear 13b, and bearing cover 15 and the journal carrier wheel 16, in particular the gear 13 band journal carrier wheel 16 are each connected to bearing cover 15 as described, thus forming a further assembly. This assembly is threaded through printed wiring board 200, which allows this assembly to be axially assembled and axially disassembled without having to disassemble and assemble printed wiring board 200 for this purpose (printed wiring board 200 is discussed in more detail below). This is particularly true of retaining plate 17. d This is done by tightening or loosening the screws that reversibly and releasably connect it to the housing 11.

[0079] The eccentricity, i.e. the radial distance between the axis of rotational symmetry of the eccentric pin 18 and the longitudinal axis 2, is for example 0.25 mm. According to this, the adjustment device 1 can also be called a fine adjustment device or fine adjustment head. The eccentric pin 18, which is cylindrical, is rotatably mounted in a slider 20 by means of a needle bearing 19. The slider 20 is mounted to slide in a longitudinal groove 21 of the receiving plate 3, which extends perpendicularly to the drawing plane of FIG. 3. When the eccentric pin 18 is driven, the slider 20 slides along the longitudinal groove 21 due to the eccentricity of the eccentric pin 18 relative to the longitudinal axis 2, and thus relative to the longitudinal axis of the pinion 13a. On the other hand, due to the positive fit seen in FIG. 3, the receiving plate 3 rotates in the direction 6 relative to the longitudinal axis 2, and thus to the longitudinal axis of the pinion 13a, relative to the housing cover 9 and the housing ring 14 when the gear output shaft 13c, and thus the journal carrier wheel 16, rotates one complete revolution around the longitudinal axis 2. Gu and The gear output shaft 13c is therefore rotated by the gear 13b and the electric motor 13 part of a complete revolution around the longitudinal axis 2 in order to set a constant offset of the receiving plate 3 in one of the directions 6, which is locked by the self-locking of the gear 13b in the absence of power supply to the electric motor 13.

[0080] 3 shows even more particularly that a printed circuit board 200 with a control circuit including electronic components is provided in the adjustment device 1 on a functional surface 210 facing away from the receiving plate 3. This controls the electric motor 13, and thus the pinion 13a, the journal carrier wheel 16 and the receiving plate 3 on the basis of one or more measurement signals, which can also be called input signals (the measurement signals may correspond, for example, to information about a predefined aperture or a deviation from a predefined aperture). The printed circuit board 200 has a cylindrical surface 220 which encloses a corresponding hole 230 in the printed circuit board 200 in a circular manner with a centre point lying on the longitudinal axis 2. This allows the printed circuit board 200 to be balanced with respect to rotation around the longitudinal axis 2 without a control circuit (as long as the printed circuit board 200 is formed rotationally symmetrical). The printed wiring board 200 is connected to the housing 11 by a fixing screw 240 (a top view of which is shown in FIG. 4 ) in such a way that it is rotationally fixed, so that when the adjustment device 1 rotates about the longitudinal axis 2, the printed wiring board 200 rotates about the longitudinal axis 2. Here, the screw 240 is partially disposed within a sleeve 240a, so that the printed wiring board 200 is fixed in the sleeve 240. a The screw 240 is screwed into the housing 11.

[0081] The printed circuit board 200 or its control circuit can be connected directly or indirectly for data communication with another printed circuit board 300 provided with power electronics, not shown in more detail, for example by means of conductive means (not shown), which can be connected by passing the conductive means partially through the holes 230 with plug contacts on the side facing the receiving plate 3, i.e. opposite the functional surface 210. The printed circuit board 300 is thereby electrically connected with the stator windings of the electric motor 13.

[0082] From Fig. 3 it can also be seen particularly well that a first coolant duct system is formed in the housing 11 and in the base part 12. This system consists of a coolant pipe 400 arranged parallel to the longitudinal axis 2 in the connection part 8 and in the base part 12 and screwed into the end region of the base part 12, a duct hole 410 in the base part 12 arranged inclined, i.e. not parallel, to the longitudinal axis 2, a duct hole 420 in the base part 12 arranged parallel to the longitudinal axis 2, a coolant pipe 430 in the housing 11 arranged parallel to the longitudinal axis 2 and partially in the duct hole 420, and a duct hole 440 in the housing 11 arranged parallel to the longitudinal axis 2. The coolant pipe 430 is partially inserted into the duct hole 420 and into the duct hole 440 in the housing 11 arranged parallel to the longitudinal axis 2 and is arranged parallel to the longitudinal axis 2. Also, a second coolant channel system is formed on the side of the receiving plate, consisting of duct holes 450 in the receiving plate 3 arranged inclined to the longitudinal axis 2. Thus, the two coolant channel systems are connected to communicate with each other, so that the coolant entering from the coolant pipe 400 leaves the duct holes 450, thus filling a specific area of ​​the hole 7. The coolant is then supplied to the cutting tool (not shown) and / or the wall of the hole (not shown) in the workpiece.

[0083] 3 also shows particularly well that a bolt 5100 is arranged in the hole 5000 of the connection part 8 transversely to the longitudinal axis 2. This bolt is capable of positively coupling with the spindle adapter part, so that torque can be transmitted from the tool spindle to the adjusting device 1.

[0084] 3, the axial length from the base part 12 to the receiving plate 3, assigned the reference number 1000, is 3.4 times longer than the axial length assigned the reference number 1100 and indicating the dimension of the connecting part 8. This corresponds to a mutual measure of the compactness of the adjustment device 1. Smaller values ​​(<3.4) of this factor are conceivable and possible, for example 3.3, 3.2, 3.1, 3.0, 2.9, 2.8, 2.7, 2.6, 2.7, 2.6, 2.5, 2.4, 2.3, 2.2, 2.1 or 2.0.

[0085] Furthermore, it can be seen from FIG. 3 that the length 1000 is independent of the dimensions of the printed wiring board 200 since the printed wiring board 200 is axially shorter than the electric motor 13 and is disposed tangentially around the electric motor 13 .

[0086] FIG. 4 shows a schematic cross-section of the adjustment device 1 along the section line IV in FIG. 3 in the direction of the arrow in FIG. 3 assigned to the section line IV. In FIG. 4, the printed circuit board 200 is particularly visible. The control circuit therefore consists of electronic components 500, 510, 520 and 530, which are connected to one another by conductor paths passing in particular through the printed circuit board 200. Here, the component 530 is designed as an electronic connector for connecting to another printed circuit board. This allows the control circuit to receive input signals and to output corresponding output signals, calculated by the control circuit, for adjusting the receiving plate 3 in a predefined manner. The two surface points 600 and 610 of the surface 220 can be connected by a connecting line 620 as shown in FIG. 4. The connecting line 620 crosses or passes through the electric motor 13. The hole 230 in which the electric motor 13, the pinion 13a and the gear 13b are partially arranged is surrounded by a circular edge 630 shown in Figure 4, and the longitudinal axis 2 is the axis of rotational symmetry of the hole 230 or of the edge 630. It can be easily seen that the hole 230, i.e. the center of the circle bounded by the edge 630, is associated with the two-dimensional centroid coordinates of the printed wiring board 200 bounded by the outer edge 640 of the butterfly shape. The centroid coordinates are also a point on the longitudinal axis 2 in a geometrical sense.

[0087] FIG. 4 further shows that the housing 11 has threaded holes 1500a into which corresponding threaded bolts can be screwed in the area of ​​the respective threaded holes in order to connect the base part 12 with the housing 11.

[0088] Fig. 5 shows a schematic view of the rear of the adjustment device 1 as seen in the direction of the arrow V in Fig. 1. Thus, from the overview of Figs. 1 to 5, an adjustment device 1 is shown which is compactly formed along the longitudinal axis 2 and reduces imbalance with respect to rotation about the longitudinal axis 2.

[0089] Finally, in FIG. 5 it can be seen that the base part 12 has holes 1500 through which threaded bolts, not shown, can or will pass in order to connect the base part 12 to the housing 11 by way of threaded holes 1500a (which are shown in plan view in FIG. 4).

Claims

1. An adjusting device (1) for adjusting a cutting tool, drivable in rotation about a longitudinal axis (2), comprising a cutting tool receiving part (3) supported for performing an adjusting movement (6), a drive unit (13, 13b) for driving said cutting tool receiving part (3), and a circuit carrier part (200) having a surface area facing said drive unit (13, 13b) and for forming at least one electronic control circuit (500, 510, 520, 530) provided for controlling said drive unit (13, 13b), the surface area (220) having two surface points (600, 610) connected on the outside of the circuit carrier part (200) by a connecting line (620) and arranged so that the circuit carrier part is bent around the longitudinal axis by a through hole, the two end points of the connecting line (620) being the two surface points (600, 610); said adjustment movement (6) being transverse to said longitudinal axis (2); The circuit carrier portion (200) is a printed wiring board; the drive unit (13, 13b) is arranged to extend at least partially through the through hole (230) of the circuit carrier part (200); the circuit carrier part is connected in a rotationally fixed manner to a base part of the adjusting device rotatable about the longitudinal axis, the base part having a connection part for connection with a tool spindle; In the case of a direct realization of the connection which is fixed with respect to rotation, this is realized by a screw element connection, in which at least one screw for fixing the circuit carrier part is arranged in a threaded part of the base part, In the case of indirectly realizing the rotationally fixed connection, the circuit carrier part is connected to a housing different from the base part in a rotationally fixed manner, and at least one screw for fixing the circuit carrier part in a rotationally fixed manner is arranged in a threaded portion of the housing and connected to the base part.

2. 2. Adjusting device (1) according to claim 1, characterized in that said connecting line (620) is arranged transversely to said drive unit (13, 13b).

3. Adjusting device (1) according to claim 1 or 2, characterized in that the boundary of the through hole (230) is determined by a circumferentially closed edge (630) of the circuit carrier part (200).

4. An adjusting device (1) according to any one of claims 1 to 3, characterized in that the maximum longitudinal dimension of the circuit carrier part (200), taken parallel to the longitudinal axis (2), is less than or equal to the maximum transverse dimension of the circuit carrier part (200), taken parallel to a transverse axis perpendicular to the longitudinal axis (2).

5. The adjustment device (1) according to any one of claims 1 to 4, characterized in that a motion converter (16) dynamically coupled to the cutting tool receiving part (3) and to the drive unit (13, 13b) is provided for converting a motion of a motion part (13b) of the drive unit (13, 13b) into the adjustment motion (6).

6. Adjusting device (1) according to any one of the preceding claims, characterized in that the drive units (13, 13b) are arranged axially.

7. 6. The adjusting device (1) according to claim 5, characterized in that the drive unit (13, 13b) and the motion converter (16) are connected to each other to form a first assembly (13, 13b, 16) which is axially disassemblable or axially assemblable separately from the circuit carrier part (200).

8. 6. The adjusting device (1) according to claim 5, characterized in that the drive unit (13, 13b), the motion converter (16), the cutting tool receiving part (3) and the circuit carrier part (200) are connected to each other to form an axially disassembled or axially assemblable second assembly (3, 13, 13b, 16, 200).

9. 6. Adjusting device (1) according to claim 5, characterized in that the circuit carrier part (200) is arranged for data communication with the drive unit (13, 13b) on the side opposite the cutting tool receiving part (3).

10. 6. The adjusting device (1) according to claim 5, characterized in that for measuring the adjustment distance assigned to the adjustment movement (6), measuring means are provided adjacent to the circuit carrier part (200), the circuit carrier part (200) being configured to provide a control signal on the basis of measurement data obtained by the measuring means.

11. 6. The adjusting device (1) according to claim 5, characterized in that the drive unit (13, 13b) comprises a gear (13b) and an electric motor (13) operably connected to the gear (13b), a gear shaft (13c) of the gear (13b) is configured to mesh with the motion converter (16), and the circuit carrier part (200) is arranged perpendicular to a gear axis (2) assigned to the gear shaft (13c).

12. 10. A cutting apparatus comprising a cutting tool, an adjustment device (1) operably connected to the cutting tool for adjusting the cutting tool, and a rotationally drivable main drive operably connected to the adjustment device (1) for providing a machining movement (2a) of the cutting tool, characterized in that the adjustment device (1) is constructed according to claim 5.

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