Cutting device, in particular pipe cutting device

Abstract

The invention relates to a cutting device (10), in particular a pipe cutting device, comprising at least one gripping unit (12), at least one upper slider unit (14) and at least one lower slider unit (16), the upper slider unit (14) having a cutting element (18), the lower slider unit (16) having at least one holding unit (20), the holding unit (20) being arranged in the upper slider unit (14), and the holding unit (20) being arranged in the lower slider unit (16). The upper slide unit (14) is designed to be movably mounted in the direction of the lower slide unit (16), and at least one locking unit (22), which is provided for locking the upper slide unit (14) relative to the lower slide unit (16). According to the invention, the locking unit (22) has a frictional locking element (24), by means of which the locking unit (22) is locked.

Description

Field of the Invention

[0001] The present invention relates to a cutting device, in particular a pipe cutting device, and a method for operating a cutting device, in particular a pipe cutting device. Background Art

[0002] There has been proposed a cutting device, in particular a pipe cutting device, having at least one gripping unit, at least one upper slide unit and at least one lower slide unit, wherein the upper slide unit has a cutting element, and the lower slide unit has at least one holding unit, wherein the upper slide unit is movably supported towards the lower slide unit and has at least one locking unit configured to lock the upper slide unit relative to the lower slide unit. Summary of the Invention

[0003] The present invention starts from a cutting device, in particular a pipe cutting device, having at least one gripping unit, at least one upper slide unit and at least one lower slide unit, wherein the upper slide unit has a cutting element, and the lower slide unit has at least one holding unit, wherein the upper slide unit is movably supported towards the lower slide unit and has at least one locking unit configured to lock the upper slide unit relative to the lower slide unit.

[0004] The present invention proposes that the locking unit has a friction-locking element by means of which the locking unit is locked.

[0005] "Cutting device" should in particular be understood as a device which is arranged to divide a cylindrical member, in particular a tube, into two sections. The cutting device is preferably arranged to completely divide a cylindrical member, in particular a tube, into two sections. The cutting device is preferably arranged to divide a cylindrical member, in particular a tube, at least partially automatically, in particular automatically, into two sections. The cutting device is preferably arranged to be picked up by a user. The cutting device is in particular hand-held during operation, and "arranged" should in particular be understood as being specifically programmed, designed and / or equipped. An object arranged to perform a specific function should in particular be understood as the object fulfilling and / or implementing the specific function in at least one application and / or operating state. The cutting device preferably has a gripping unit. "Gripping unit" should in particular be understood as a unit by means of which a user holds the cutting device in the operating state. The gripping unit is preferably configured to match the requirements of the user. In particular, it can be considered that the gripping unit has an anti-slip surface in the hand area of the gripping unit, by means of which the safety of the user is increased. Preferably, the gripping unit at least partially forms the housing of the cutting device. The gripping unit preferably receives an upper slider unit and a lower slider unit. Particularly preferably, the gripping unit receives all the components of the cutting device. The gripping unit is preferably constructed in multiple parts. The gripping unit is preferably made of plastic. Alternatively, the gripping unit is made of a metallic material and / or multiple different materials. In addition, any other material for the gripping unit that appears meaningful to a person skilled in the art can also be considered.

[0006] The "upper slider unit" should in particular be understood as a unit that has a receiving portion for the cutting element and is configured to be linearly movable towards the lower slider unit. The upper slider unit preferably has a first guiding element. The upper slider unit is preferably the first guiding element. Alternatively, it can also be considered that the first guiding element is integrally, in particular monolithically, connected to the upper slider unit. "Integrally" should in particular be understood as a material-locking connection, for example by a welding process and / or an adhesive process, etc. and is particularly advantageously shaped, such as by manufacturing from a casting and / or by a single-component or multi-component injection molding method. Integrally is also advantageously to be understood as or monolithically. "Monolithically" should in particular be understood as being molded in one piece. Preferably, the piece is manufactured from a single blank, block, and / or casting, particularly preferably by an injection molding method, in particular a single-component and / or multi-component injection molding method. The first guiding element is preferably configured as a particularly cuboid. Alternatively, other shapes that are meaningful to those skilled in the art can also be considered. The first guiding element preferably has a through-hole. Preferably, the through-hole has a circular cross-section in a cross-section perpendicular to the main extension direction of the through-hole. Alternatively, any other cross-section perpendicular to the main extension direction of the through-hole that is meaningful to those skilled in the art can be considered, such as a polygon or an ellipse. The first guiding element is preferably configured as a sliding bearing. The cutting element is preferably connected to the upper slider unit by a rotating shaft. The "cutting element" should in particular be understood as an element that is arranged for cutting a cylindrical member, in particular a tube. The cutting element is preferably movably supported in the receiving portion of the upper slider unit. The expression "movably supported" should in particular define the support of an element, where the element in particular has the possibility of moving at an angle of more than 270°, preferably more than 315°, and particularly preferably 360° around at least one axis, and / or has the possibility of moving along at least one distance of more than 10 mm, preferably more than 15 mm, and particularly preferably more than 30 mm, decoupled from the elastic deformation of the element. The cutting element is preferably rotatably supported in the receiving portion of the upper slider unit. The cutting element is preferably configured as a rotatably supported blade. The expression "rotatably supported" should in particular be defined as the support of an element, where the element in particular has the possibility of moving 360° around at least one axis, decoupled from the elastic deformation of the element. Alternatively, any other cutting element that is meaningful to those skilled in the art can be considered. The cutting element is preferably configured as a circular blade. The cutting element is preferably arranged for cutting the cylindrical member, in particular the tube, on the circumferential surface of the cylindrical member, in particular the tube, by rotation of the cutting element around the rotation axis of the cylindrical member, in particular the tube.

[0007] The "lower slider unit" should in particular be understood as a unit which is arranged to provide a receiving part for a cylindrical member, in particular a tube. The lower slider unit preferably has a second guiding element. The lower slider unit preferably constitutes the second guiding element. Alternatively, it can be considered that the second guiding element is constructed integrally, in particular in one-piece connection, with the lower slider unit. The second guiding element is preferably constructed as an elongate member which, in the designed state, has a height extension dimension which is many times larger than the longitudinal extension dimension and the transverse extension dimension of the member. The second guiding element is preferably arranged to define a track. The second guiding element is preferably arranged to define a track for the first guiding element. The first guiding element preferably slides on the second guiding element. The second guiding element is preferably constructed as a guiding tab. The first guiding element is preferably constructed to be movably supported along the second guiding element. The first guiding element is preferably arranged to be linearly movably supported along the second guiding element. The second guiding element preferably has a circular cross-section in a cross-section perpendicular to the main extension direction of the second guiding element. Alternatively, any other cross-section perpendicular to the main extension direction of the second guiding element which appears meaningful to a person skilled in the art can be considered, such as a polygon or an ellipse. Particularly preferably, the cross-section perpendicular to the main extension direction of the second guiding element and the cross-section of the through portion of the first guiding element perpendicular to the main extension direction of the through portion are constructed in a coordinated manner. Preferably, the cross-section perpendicular to the main extension direction of the second guiding element and the cross-section of the through portion of the first guiding element perpendicular to the main extension direction of the through portion have a clearance fit. The lower slider unit preferably has at least one holding unit. The "holding unit" should in particular be understood as a unit which is arranged to receive a cylindrical member, in particular a tube. Preferably, the holding unit is arranged to receive a cylindrical member, in particular a tube, in a rotatably supported manner. The holding unit preferably has at least one roller, preferably at least two rollers. The rollers are preferably rotatably supported. Preferably, the rollers are arranged to rotatably support a cylindrical member, in particular a tube. The cylindrical member, in particular the tube, is preferably received by the rollers. The "main extension direction" of an object should in particular be understood as the direction which extends parallel to the longest edge of the smallest geometric cuboid which exactly completely encloses the object.

[0008] The "locking unit" should in particular be understood as a mechanical unit which is arranged to fix a movable part. Preferably, the frictional force is transmitted from the frictional engagement element to the upper slide unit by means of the locking unit. The locking unit is preferably arranged to lock the upper slide unit relative to the lower slide unit. The locking unit is preferably constructed in a multi-piece manner. The locking unit is preferably arranged to orient a cylindrical member, in particular a tube, in a cutting device during a machining step. In the context, "locking" should in particular be understood as a mechanical process of fixing a movable part, and the locking unit preferably has at least one frictional engagement element. The "frictional engagement element" should in particular be understood as an element by means of which the locking of the locking unit is carried out. The frictional engagement element is preferably arranged to produce a frictional engagement, in particular a force fit, with the upper slide unit. Preferably, the frictional engagement element is arranged to maintain the locking of the upper slide unit relative to the lower slide unit by means of frictional engagement, in particular force fit, during an operating step. The frictional engagement element is preferably arranged to release the frictional engagement, in particular force fit, during a release step. Preferably, the frictional engagement element is arranged to transmit the frictional force to the upper slide unit. Preferably, the rotational movement is converted into a linear movement by means of the frictional engagement element. Preferably, the rotational movement is converted into a linear movement by means of the transmission of the frictional force by the frictional engagement element. Preferably, the frictional force is transferred to the upper slide unit by means of the frictional engagement element. Preferably, the upper slide unit moves linearly towards the lower slide unit by means of the frictional force. The frictional engagement element is preferably constructed to be rotatably supported.

[0009] The configuration according to the invention of the cutting device can provide advantageous characteristics in terms of the automatic locking of the cutting device. In particular, a cutting device with a simplified structural design can be achieved by the configuration according to the invention of the cutting device. In particular, advantageous characteristics in terms of the uniform cutting of a cylindrical member can be achieved. In particular, a mounted cylindrical member, in particular a tube, can be cut. Thereby, advantageous characteristics can be achieved especially in terms of the comfort of use.

[0010] Furthermore, it is proposed that the cutting device has a rotating element, which is arranged to rotatably support the upper slider unit and the lower slider unit about a rotation axis. Preferably, the rotating element is arranged to rotatably support the upper slider unit and the lower slider unit relative to the gripping unit about the rotation axis. Preferably, the rotating element is movably supported on the gripping unit. The lower slider unit is preferably fixedly connected to the rotating element. The connection of at least one first element to at least one further element should in particular be understood to mean that the first element is advantageously connected to the further element by at least one force fit and / or at least one form fit, for example by riveting and / or snap locking and / or tenon-mortise connection and / or clamping connection and / or any other connection that appears meaningful to a person skilled in the art, and / or materially connected to the further element, for example by a welding process, an adhesive process, an injection molding process and / or any other process that appears meaningful to a person skilled in the art. The upper slider unit is preferably movably arranged on the rotating element via the lower slider unit. The "rotating element" should in particular be understood as an element which is arranged to provide a rotational movement of the cutting element about the rotation axis of a cylindrical member, in particular a tube. The rotating element preferably has an annular cross-section in a cross-section parallel to the main extension direction of the rotating element. Preferably, the annular shape of the rotating element extends over at least one radius preferably up to 270°, advantageously up to 300°, particularly preferably up to 315°. The inner radius of the annular shape of the rotating element is preferably greater than the radius of the cylindrical member, in particular the tube. Alternatively, any other embodiment of the rotating element that appears meaningful to a person skilled in the art can be considered. This can provide advantageous characteristics with regard to the automatic locking of the cutting device. Advantageous characteristics can in particular be achieved with regard to the uniform cutting of the cylindrical member.

[0011] Furthermore, it is proposed that the cutting device has a drive unit and a rotating element, wherein the drive unit drives the rotating element to perform a rotational movement. The "drive unit" should particularly be understood as a unit that converts electrical energy into kinetic energy. The drive unit is preferably arranged in the gripping unit. The drive unit is preferably supplied with electrical energy by means of a storage battery and / or a power plug. The cutting device preferably has a control and regulation unit, which is arranged to regulate the operation of the cutting device. The control and regulation device preferably has a user interface by means of which the user can regulate the operation of the cutting device. The control and regulation device is preferably arranged to regulate the rotational direction of the drive unit. In particular, it can be considered that the control and regulation unit regulates the rotational speed of the drive unit. The "control and regulation unit" should particularly be understood as a unit having at least one electronic control device. The "control electronic device" should particularly be understood as a unit having a processor unit, a memory unit, and a running program stored in the memory unit. The rotational movement of the drive unit is preferably transmitted to the rotating element through a coupling part. The drive unit preferably has a toothing at the coupling part, by means of which the rotational movement of the drive unit is transmitted to the rotating element. The rotating element should particularly be understood as an element that is arranged to transfer the kinetic energy from the drive unit to the rotating element. The rotating element preferably has a toothing on its outer radius. Preferably, the toothing is configured corresponding to the toothing of the drive unit. Preferably, the rotational movement is transmitted from the toothing of the drive unit to the toothing of the rotating element. Preferably, the rotating element has an annular cross-section in a cross-section parallel to the main extension direction of the rotating element. Preferably, the annular shape of the rotating element extends at least one radius preferably up to 270°, advantageously up to 300°, particularly preferably up to 315°. Preferably, the inner radius of the annular shape of the rotating element is greater than the radius of the cylindrical member, particularly the tube. Alternatively, any other embodiment that makes sense to a person skilled in the art of the rotating element can be considered. The rotating element is preferably constructed to be movably supported relative to the gripping unit. The rotating element is preferably constructed to be movably supported relative to the rotating element. Thereby, advantageous characteristics can be provided in terms of the automatic locking of the cutting device. In particular, advantageous characteristics can be achieved in terms of the uniform cutting of the cylindrical member.

[0012] Furthermore, it is proposed that the locking unit has a driving element, which is fixedly arranged on the rotating element. The driving element is preferably arranged to be connected to the rotating element at least substantially non-loosely. "At least substantially non-loosely" should be understood here in particular as the connection of at least two elements, which are separated from each other only by means of a separating tool such as a saw, in particular a mechanical saw, etc. and / or a chemical separating agent such as a solvent, etc. Alternatively, it can be considered that the driving element is arranged on the rotating element in a releasable manner by means of a tool. "Releasable" should be understood in the context in particular as "able to be separated without damage". Furthermore, the driving element is constructed in one piece, in particular integrally connected to the rotating element. The "driving element" should be understood in particular as an element that transfers the rotational movement from the rotating element to the rotating element. The driving element is preferably arranged on the outer radius of the rotating element. The outer edge of the driving element preferably extends helically towards the axis of rotation of the rotating element. Particularly preferably, the outer edge of the driving element extends helically at least substantially partially from the outer radius of the rotating element towards the axis of rotation of the rotating element. Alternatively, it can be considered that the outer edge of the driving element extends tangentially at least substantially partially from the outer half of the rotating element towards the inner radius of the rotating element. Thereby, advantageous characteristics can be provided in terms of the automatic locking of the cutting device. In particular, advantageous characteristics can be achieved in terms of the uniform cutting of cylindrical members.

[0013] Furthermore, it is proposed that the friction-locking element is constituted by a roller, which is arranged to be rotatably supported in the vicinity of the upper slide unit. The friction-locking element is preferably arranged in the receiving part of the upper slide unit. Particularly preferably, the roller is arranged in the vicinity of the first guiding element. Preferably, the roller is arranged to be rotatably supported relative to the upper slide unit and the rotating element. Preferably, the roller is arranged to convert the rotational movement of the rotating element into a linear movement of the upper slide unit. Preferably, the roller is arranged to transfer the rotational movement of the rotating element to the rotating element. Preferably, the roller extends along the outer edge of the driving element during the operating step. The rotational movement is preferably transferred from the driving element to the roller and from the roller to the rotating element and / or the upper slide unit. "Vicinity" should be understood in the context in particular as a spatially spherical region, which preferably extends around the geometric center of the processing region with a radius of at most 20 mm, preferably at most 15 mm and particularly preferably at most 1 mm. The roller is preferably arranged in contact with the first guiding element of the upper slide unit. The roller is preferably arranged in contact with the driving element. Thereby, advantageous characteristics can be provided in terms of the automatic locking of the cutting device.

[0014] Furthermore, it is proposed that the rotating element and the swiveling element are configured to be rotatably supported relative to one another. The rotating element and the swiveling element are preferably arranged at least substantially parallel to one another. "Substantially parallel" is to be understood here in particular as the orientation of a direction relative to a reference direction, in particular in a plane, where the direction has a deviation from the reference direction of in particular less than 8°, preferably less than 5°, particularly preferably less than 2°. The rotating element and the swiveling element are preferably configured to be rotatably supported about a rotation axis. Preferably, the rotating element and the swiveling element are arranged in contact on one side arranged at least substantially parallel to the main extension direction of the swiveling element and on one side arranged at least substantially parallel to the main extension direction of the rotating element. The rotating element and the swiveling element are preferably configured to be supported relative to one another for a rotatable movement of preferably up to 270°, preferably up to 315°, particularly preferably fully rotatable. Here, "rotatable" is to be understood in particular as rotation about the rotation axis. This can in particular provide advantageous properties with regard to a simplified structural design.

[0015] Furthermore, it is proposed that the rotating element has a projection which is provided for limiting the rotational movement between the rotating element and the swiveling element. The projection is preferably configured on the outer radius of the rotating element. Alternatively, any other embodiment of the projection which appears meaningful to a person skilled in the art can be considered. Preferably, the projection is provided for limiting the rotational movement between the rotating element and the swiveling element by means of a carrying element. Preferably, the projection is arranged at least substantially parallel to the rotating element. Preferably, the projection is configured corresponding to the carrying element. Preferably, the projection is provided for locking onto the carrying element during an operating step. This can in particular provide advantageous properties with regard to a simplified structural design.

[0016] Furthermore, it is proposed that the cutting device has a holding element which is arranged to limit the movement of the rotating element. Preferably, the holding element is arranged to limit the rotational movement of the rotating element. Preferably, the holding element is movably supported on the rotating element. Preferably, the holding element is constructed to be movably supported together with the rotating element about the axis of rotation. Preferably, the holding element has a tear-shaped cross-section at least substantially parallel to the main extension direction of the rotating element. Alternatively, it may be considered any other cross-section which is meaningful to the person skilled in the art with respect to the main extension direction of the rotating element. The "holding element" should in particular be understood as an element which is arranged to limit the rotational movement of the rotating element by means of a gripping unit. The gripping unit preferably has a stop element which is arranged to limit the rotational movement of the rotating element. The stop element is preferably constructed corresponding to the holding element. Preferably, the stop element is arranged to limit the rotational movement of the rotating element relative to the gripping unit during the operating step. The stop element is preferably constructed in one piece, in particular integrally, with the gripping unit. Preferably, the stop element is constructed on the gripping unit in the vicinity of the rotating element. During the operating step, the holding element is preferably locked in the stop element. Preferably, the rotational movement of the rotating element in the counterclockwise direction is limited by locking the holding element in the stop element. This can in particular provide advantageous characteristics in terms of a simplified structural design.

[0017] The invention also starts from a method for operating a cutting device according to the invention, in particular a pipe cutting device. It is proposed to lock the upper slide unit relative to the lower slide unit during the locking step. Preferably, during the locking step, the upper slide unit is fixedly locked relative to the lower slide unit. Preferably, during the locking step, a cylindrical member, in particular a pipe, is fixed between the lower slide unit and the upper slide unit. Preferably, during the locking step, the upper slide unit is variably fixed relative to the lower slide unit. Preferably, during the locking step, the upper slide unit is locked relative to the lower slide unit according to the diameter of the cylindrical member. Preferably, during the locking step, a cylindrical member, in particular a pipe, is fixed between the cutting element of the upper slide unit and the holding element of the lower slide unit. Preferably, during the locking step, a cylindrical member, in particular a pipe, is movably supported about the axis of rotation and fixed between the cutting element of the upper slide unit and the holding element of the lower slide unit. This can in particular achieve advantageous characteristics in terms of the uniform cutting of the cylindrical member.

[0018] Furthermore, it is proposed that in the locking step, the friction locking element linearly moves the upper slider unit towards the lower slider unit by means of the rotational movement of the rotating element. Preferably, in the locking step, the upper slider unit is linearly moved towards the lower slider unit. Preferably, in the locking step, the upper slider unit and the lower slider unit are linearly supported relative to each other. Preferably, in the locking step, the upper slider unit linearly moves according to the diameter of the cylindrical member, in particular a tube. Preferably, in the locking step, the rotational movement of the rotating element is converted into a linear movement of the upper slider unit relative to the lower slider unit. Preferably, in the locking step, the linear movement of the upper slider unit relative to the lower slider unit is restricted by the circumferential surface of the cylindrical member, in particular a tube. Particularly preferably, in the locking step, the upper slider unit is locked relative to the lower slider unit by means of a clockwise rotational movement of the rotating element. Preferably, in the locking step, the upper slider unit is linearly moved in the direction of the lower slider unit by means of a clockwise rotational movement of the rotating element. In particular, it can be considered that in the locking step, the upper slider unit linearly moves in the opposite direction to the lower slider unit by means of a counterclockwise rotational movement of the rotating element. Alternatively, it can be considered that in the locking step, the upper slider unit is linearly moved in the direction of the lower slider unit by means of a counterclockwise rotational movement of the rotating element. Thereby, advantageous characteristics can be provided in terms of the automatic locking of the cutting device. Thereby, in particular, advantageous characteristics can be achieved in terms of the uniform cutting of the cylindrical member.

[0019] Furthermore, it is proposed that in the locking step, the actuating element converts the rotational movement of the rotary element into a linear movement via the friction locking element. Preferably, in the locking step, the rotational movement of the rotary element is converted into a linear movement of the upper slider unit towards the lower slider unit via the friction locking element by means of the actuating element. Preferably, in the locking step, the rotational movement of the rotary element is converted into a linear movement of the upper slider unit by means of rollers via the actuating element. Preferably, in the locking step, the rotational movement of the rotary element is transmitted to the friction locking element via the actuating element. Preferably, in the locking step, the friction locking element, in particular the roller, is guided along the outer edge of the actuating element by the rotational movement of the rotary element. Preferably, in the locking step, the upper slider unit moves linearly towards the lower slider unit by the frictional force formed between the actuating element and the friction locking element. Preferably, in the locking step, the rotational movement of the friction locking element is converted into a linear movement of the upper slider unit by another frictional force between the friction locking element and the upper slider unit. Preferably, in the locking step, the friction locking element, in particular the roller, is moved in the direction of the axis of rotation of the rotary element by the rotational movement of the actuating element. Preferably, in the locking step, the rotational movement transmitted to the friction locking element is transmitted to the upper slider unit, wherein the rotational movement is converted into a linear movement towards the lower slider unit. Preferably, in the locking step, once the upper slider unit touches the circumferential surface of the cylindrical member, in particular the tube, with the cutting element, the linear movement stops. Particularly preferably, in the locking step, the rotational movement is converted into a linear movement via the friction locking element when the rotary element rotates clockwise. Thereby, advantageous characteristics can be provided in terms of the automatic locking of the cutting device. Thereby, in particular, advantageous characteristics can be achieved in terms of the uniform cutting of the cylindrical member.

[0020] Furthermore, it is proposed that in the machining step, the locking between the upper slider unit and the lower slider unit is maintained by the spring force of the friction locking element on the member, in particular the tube. Preferably, in the machining step, the spring force of the friction locking element on the actuating element and the upper slider unit is maintained such that the locking of the upper slider unit relative to the lower slider unit is maintained. Preferably, in the machining step, the spring force of the rotational movement of the rotary element is generated by the frictional force between the friction locking element and the actuating element. Preferably, in the machining step, the locking is maintained throughout the machining duration. In the context, the "machining step" should in particular be understood as a method step in which the cutting device divides the cylindrical member, in particular the tube, into two sections. Preferably, in the machining step, the cutting element of the upper slider unit is guided rotatably around the circumferential surface of the cylindrical member, in particular the tube. In particular, it can be considered that in the machining step, the locking unit has a spring element which replaces and / or additionally maintains the locking of the upper sliding device relative to the lower sliding device. Thereby, in particular, advantageous characteristics can be achieved in terms of the uniform cutting of the cylindrical member.

[0021] Furthermore, it is proposed that in the machining step, the rotational movement is transferred from the rotating element to the rotating member by frictional engagement between the frictional engagement element and the actuating element. Preferably, in the machining step, once the upper slider unit touches the circumferential surface of the cylindrical member, in particular a tube, and the locking of the upper slider unit relative to the lower slider unit ends, the rotational movement is transferred from the rotating element to the rotating member. Preferably, in the machining step, the rotational movement is transferred from the rotating element to the rotating member by the frictional force between the frictional engagement element and the actuating element. Preferably, the rotating element and the rotating member have the same rotational speed in the machining step. Preferably, the cutting element of the upper slider unit is guided around the cylindrical member, in particular a tube, by the rotational movement transmitted via the frictional engagement element and the actuating element. Preferably, in the machining step, the cutting element of the upper slider unit is guided around the cylindrical member at least substantially perpendicular to the main extension direction of the cylindrical member, in particular a tube. Thereby, advantageous characteristics can be achieved especially in terms of uniform cutting of the cylindrical member.

[0022] Furthermore, it is proposed that in the loosening step, a rotational movement opposite to that in the locking step and the machining step is performed, wherein the protrusion of the rotating element limits the rotational movement between the rotating member and the rotating element. Preferably, in the loosening step, the rotational movement of the rotating element is reversed by means of a drive unit. Particularly preferably, in the loosening step, the rotational movement of the drive unit is reversed by means of a control and regulation unit as compared to the locking step and the machining step. Preferably, in the loosening step, a counterclockwise rotational movement of the rotating element is performed. Preferably, in the loosening step, the frictional engagement between the frictional engagement element, in particular a roller, and the actuating element is eliminated by the reverse rotation of the rotating element. Preferably, in the loosening step, the contact between the frictional engagement element, in particular a roller, and the actuating element is cancelled by the reverse rotation of the rotating element, wherein the locking of the upper slider unit relative to the lower slider unit is cancelled. In the context, the "loosening step" should be understood in particular as the step of cancelling the locking of the upper slider unit relative to the lower slider unit and resetting the cutting device to its initial state. Preferably, in the loosening step, the reverse rotational movement of the rotating element is transferred to the rotating member. Preferably, in the loosening step, the reverse rotational movement of the rotating element is transferred to the rotating member via the actuating element and the protrusion of the rotating member. Preferably, in the loosening step, the protrusion of the rotating member touches the actuating element during the reverse rotational movement of the rotating element, thereby transferring the reverse rotational movement of the rotating element to the rotating member. Alternatively, it can be considered that the rotating element has other stops that are meaningful to those skilled in the art, and the protrusion of the rotating member stops against this stop in order to transfer the reverse rotational movement of the rotating element to the rotating member. Thereby, advantageous characteristics can be provided especially in terms of releasing the locking.

[0023] Furthermore, it is proposed that in the loosening step, a rotational movement opposite to that in the locking step and the machining step is performed, wherein the holding element interrupts the transmission of the rotational movement from the rotating element to the rotating member and resets the cutting device to the initial state. Preferably, in the loosening step, once the holding element hits the stop of the gripping unit, the opposite rotational movement from the rotating element to the rotating member is interrupted. Preferably, in the loosening step, due to the opposite rotational movement of the rotating member, the holding element hits the stop of the gripping unit. Preferably, in the loosening step, once the holding element hits the stop of the gripping unit, the contact between the actuating element and the projection of the rotating member is cancelled. Preferably, in the loosening step, the rotating member is fixed in the initial state by the holding element against the stop of the gripping unit. In particular, it can be considered that in the loosening step, the rotating element is stopped in the initial state by adjusting the rotational movement of the drive unit. This can provide advantageous characteristics especially in terms of bringing the cutting device into the initial state.

[0024] The cutting device according to the invention, in particular a pipe cutting device, is not limited to the applications and embodiments described above. The cutting device according to the invention, in particular a pipe cutting device, can in particular have a number deviating from the number of the individual elements, components and units and method steps described herein in order to meet the working modes described herein. Furthermore, within the value ranges given in this disclosure, the values located within the extreme values should also be considered as disclosed and arbitrarily usable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Further advantages result from the following description of the drawings. Embodiments of the invention are shown in the drawings. The drawings, the description and the claims contain a plurality of combined features. A person skilled in the art can also meaningfully consider the features individually and summarize them into other meaningful combinations.

[0026] The drawings show:

[0027] Figure 1 : A schematic view of a cutting device according to the invention,

[0028] Figure 2 : A schematic flow chart of a method for operating a cutting device according to the invention,

[0029] Figure 3 : A schematic flow of a method of a cutting device according to the invention,

[0030] Figure 4 : A schematic cross-sectional view of a cutting device according to the invention,

[0031] Figure 5 : A schematic cross-sectional view of a cutting device according to the invention, and

[0032] Figure 6: Schematic diagram of the decomposition of the cutting device according to the present invention. DETAILED DESCRIPTION

[0033] Figure 1 A cutting device 10, in particular a tube cutting device, is shown. The cutting device 10 is configured to completely split a cylindrical component, in particular a tube, into two sections. The cutting device 10 is configured to automatically split a cylindrical component, in particular a tube, into two sections. The cutting device 10 is configured to be picked up by a user. The cutting device 10 has a gripping unit 12. The cutting device 10 has at least one gripping unit 12. The gripping unit 12 is configured to match the user's requirements. In particular, it is conceivable that the gripping unit 12 has a non-slip surface in the hand area of ​​the gripping unit 12, by means of which the user's safety is improved. The gripping unit 12 constitutes the housing of the cutting device 10. The gripping unit 12 receives an upper slider unit 14 and a lower slider unit 16. The gripping unit 12 receives all components of the cutting device 10. The gripping unit 12 is constructed in a multi-piece manner. The gripping unit 12 is composed of a plastic material. Alternatively, it is conceivable that the gripping unit 12 is composed of a metal material and / or a plurality of different materials. In addition, any other material for the gripping unit 12 that appears to be meaningful to a person skilled in the art can be considered. (See Figure 4 , Figure 5 and Figure 6 )

[0034] The cutting device 10 has at least one upper slider unit 14 and at least one lower slider unit 16. Among them, the upper slider unit 14 has a cutting element 18, and the lower slider unit 16 has at least one holding unit 20. The upper slider unit 14 is configured to be movably supported against the lower slider unit 16. The upper slider unit 14 has a first guiding element 46. The upper slider unit 14 forms the first guiding element 46. Alternatively, it can be considered that the first guiding element 46 is integrally, especially monolithically connectedly configured with the upper slider unit 14. The first guiding element 46 is especially configured as a cuboid. Alternatively, other shapes that seem meaningful to those skilled in the art can also be considered. The first guiding element 14 has a through portion. The through portion has a circular cross-section in a cross-section perpendicular to the main extension direction of the through portion. Alternatively, a cross-section perpendicular to the main extension direction of the through portion that seems meaningful to those skilled in the art can be considered, such as a polygon or an ellipse. The first guiding element 46 is configured as a sliding bearing. The cutting element 18 is configured to be connected to the upper slider unit 14 through a rotating shaft. The cutting element 18 is rotatably supported and arranged in a receiving portion of the upper slider unit 14. The cutting element 18 is configured as a rotatably supported blade. Alternatively, any other configuration of the cutting element 18 that seems meaningful to those skilled in the art can be considered. The cutting element 18 is configured as a circular blade. The cutting element 18 is arranged to cut a cylindrical member, especially a pipe, on the circumferential surface of the cylindrical member by rotating the cutting element 18 around the rotation axis of the cylindrical member, especially the pipe. The lower slider unit 16 has a second guiding element 48. The lower slider unit 16 forms the second guiding element 48. Alternatively, it can be considered that the second guiding element 48 is integrally, especially monolithically connectedly configured with the lower slider unit 16. The second guiding element 46 is configured as an elongated member, which has a height extension scale many times greater than the longitudinal extension scale and the transverse extension scale of the member in the designed state. The second guiding element 48 is arranged to define a trajectory. The second guiding element 48 is arranged to define a trajectory for the first guiding element 46. The first guiding element 46 slides on the second guiding element 48. The second guiding element 48 is configured as a guiding tab. The first guiding element 46 is configured to be movably supported along the second guiding element 48. The first guiding element 46 is linearly movably supported along the second guiding element 48. The second guiding element 48 has a circular cross-section in a cross-section perpendicular to the main extension direction of the second guiding element 48. Alternatively, any other cross-section perpendicular to the main extension direction of the second guiding element 48 that seems meaningful to those skilled in the art can be considered, such as a polygon or an ellipse. The cross-section perpendicular to the main extension direction of the second guiding element 48 and the cross-section of the through portion of the first guiding element 46 perpendicular to the main extension direction of the through portion are configured in coordination. The cross-section perpendicular to the main extension direction of the second guiding element 48 and the cross-section of the through portion of the first guiding element 46 perpendicular to the main extension direction of the through portion have a clearance fit.The lower slide block unit 48 has at least one holding unit 20. The holding unit 20 is arranged for rotatably supporting and receiving a cylindrical member, in particular a tube. The holding unit 20 has rollers 50. The rollers 50 are arranged for rotatably supporting a cylindrical member, in particular a tube. The cylindrical member, in particular the tube, is received by the rollers 50. (See. Figure 4 , Figure 5 and Figure 6 ).

[0035] The cutting device 10 has at least one locking unit 22 which is arranged for locking the upper slide block unit 14 relative to the lower slide block unit 16. The locking unit 22 transfers a frictional force from the friction-locking element 24 to the upper slide block unit 14. The locking unit 22 is arranged for locking the upper slide block unit 14 relative to the lower slide block unit 16. The locking unit 22 is constructed in a multi-piece manner. The locking unit 22 is arranged for centering a cylindrical member, in particular a tube, in the cutting device 10 during a machining step.

[0036] The locking unit 22 has a friction-locking element 24 by means of which the locking unit 22 is locked. The friction-locking element 24 is arranged for friction-locking, in particular force-locking, with the upper slide block unit 14. The friction-locking element 24 is arranged for maintaining the locking of the upper slide block unit 14 relative to the lower slide block unit 16 by friction-locking, in particular force-locking, during a machining step 42. The friction-locking element 24 is arranged for releasing the friction-locking, in particular force-locking, with the upper slide block unit 14 during a release step 44. The friction-locking element 24 is arranged for transferring a frictional force to the upper slide block unit 14. The rotational movement is converted into a linear movement by the friction-locking element 24. The rotational movement is converted into a linear movement of the upper slide block unit 14 by the transfer of the frictional force by the friction-locking element 24. The frictional force is transferred to the upper slide block unit 14 by the friction-locking element 24. The upper slide block unit 14 moves linearly towards the lower slide block unit 16 by the frictional force. The friction-locking element 24 is constructed to be rotatably supported.

[0037] The cutting device 10 has a rotating element 26, which is arranged to rotatably support the upper slide unit 14 and the lower slide unit 16 about a rotation axis 28. The rotating element 26 is arranged to rotatably support the upper slide unit 14 and the lower slide unit 16 about the rotation axis 28 relative to the gripping unit 12. The rotating element 26 is movably supported on the gripping unit 12. The lower slide unit 16 is configured to be fixedly connected to the rotating element 26. The upper slide unit 14 is movably arranged on the rotating element 26 via the lower slide unit 16. The rotating element 26 has an annular cross-section in a cross-section parallel to the main extension direction of the rotating element 26. The inner radius of the annular shape of the rotating element 26 is greater than the radius of a cylindrical member, in particular a tube. Alternatively, any other embodiment of the rotating element 26 that makes sense to a person skilled in the art can be considered.

[0038] The cutting device 10 has a drive unit 30 and a rotating element 32, wherein the drive unit 30 drives the rotating element 32 in a rotational movement. The drive unit 30 is arranged in the gripping unit 12. The drive unit 30 is supplied with electrical energy by means of a battery and / or a power plug. The cutting device 10 has a control and regulation unit 52, which is arranged to regulate the operation of the cutting device 10. The control and regulation device 52 has a user interface by means of which the user can regulate the operation of the cutting device 10. The control and regulation device 52 is arranged to regulate the rotational direction of the drive unit 30. In particular, it can be considered that the control and regulation unit 52 regulates the rotational speed of the drive unit 30. The rotational movement of the drive unit 30 is transmitted to the rotating element 32 via a coupling site 54. The drive unit 30 has a toothing at the coupling site 54, by means of which the rotational movement of the drive unit 30 is transmitted to the rotating element 32. The rotating element 32 has a toothing on its outer radius, which is configured corresponding to the toothing of the drive unit 30. The rotational movement is transmitted from the toothing of the drive unit 30 to the toothing of the rotating element 32. The rotating element 32 has an annular cross-section in a cross-section parallel to the main extension direction of the rotating element 32. The inner radius of the annular shape of the rotating element 32 is greater than the radius of a cylindrical member, in particular a tube. Alternatively, any other embodiment of the rotating element 32 that makes sense to a person skilled in the art can be considered. The rotating element 32 is configured to be movably supported relative to the gripping unit 12. The rotating element 32 is configured to be movably supported relative to the rotating element 26.

[0039] The locking unit 22 has a driving element 34, which is fixedly arranged on the rotating element 32. The driving element 34 is arranged to be at least substantially inseparably connected to the rotating element 32. Alternatively, it can be considered that the driving element 34 is detachably arranged on the rotating element 32 by means of a tool. In addition, the driving element 34 is constructed to be integrally, in particular integrally, connected to the rotating element 32. The driving element 34 is arranged on the outer radius of the rotating element 32. The outer edge of the driving element 34 extends helically towards the axis of rotation 28 of the rotating element 32. The outer edge of the driving element 34 extends at least partially helically from the outer radius of the rotating element 32 towards the axis of rotation 28 of the rotating element 32. Alternatively, it can be considered that the outer edge of the driving element 34 extends at least substantially tangentially from the outer radius of the rotating element 32 in the direction of the inner radius of the rotating element 32.

[0040] The friction-locking element 24 consists of a roller, which is rotatably supported in the vicinity of the upper slide unit 14. The friction-locking element 24 is arranged in the receiving part of the upper slide unit 14. The roller is arranged in the vicinity of the first guide element 46. The roller is rotatably supported relative to the upper slide unit 14 and the rotating element 32. The roller is arranged to convert the rotational movement of the rotating element 32 into a linear movement of the upper slide unit 14. The roller is arranged to transfer the rotational movement of the rotating element 32 to the rotating element 26. In one operating step, the roller extends along the outer edge of the driving element 34. The rotational movement is transferred from the driving element 34 to the roller and from the roller to the rotating element 26 and / or the upper slide unit 14. The roller is arranged in contact with the first guide element 46 of the upper slide unit 14. The roller is arranged in contact with the driving element 34.

[0041] The rotating element 26 and the rotating element 32 are constructed to be rotatably supported relative to each other. The rotating element 26 and the rotating element 32 are arranged at least substantially parallel to each other. The rotating element 26 and the rotating element 32 are constructed to be rotatably supported about the axis of rotation 28. The rotating element 26 and the rotating element 32 are arranged in contact on one side arranged at least substantially parallel to the main extension direction of the rotating element 32 and on one side arranged at least substantially parallel to the main extension direction of the rotating element 26.

[0042] The rotating element 26 has a projection 36 which is arranged to limit the rotational movement between the rotating element 26 and the rotary element 32. The projection 36 is constructed on the outer radius of the rotating element 26. Alternatively, any other embodiment that seems meaningful to a person skilled in the art for the projection 36 can be considered. The projection 46 is arranged to limit the rotational movement between the rotating element 26 and the rotary element 28 by means of the actuating element 34. The projection 36 is arranged at least substantially parallel to the rotary element 28. The projection 36 is constructed corresponding to the actuating element 34. The projection 36 is arranged to lock onto the actuating element 34 during the operating step (see Figure 4 and Figure 6 ).

[0043] The cutting device 10 has a retaining element 38 which is arranged to limit the movement of the rotating element 26. The retaining element 38 is arranged to limit the rotational movement of the rotating element 26. The retaining element 38 is arranged to be movably supported on the rotating element 26. The retaining element 38 is constructed to be movably supported with the rotating element 26 about the axis of rotation 28. The retaining element 38 has a cross-section in the shape of a water droplet at least substantially parallel to the main extension direction of the rotating element 26. Alternatively, any other cross-section that seems meaningful to a person skilled in the art for the retaining element 38 relative to the main extension direction of the rotating element 26 can be considered. The gripping unit 12 has a stop element 56 which is arranged to limit the rotational movement of the rotating element 26. The stop element 56 is constructed corresponding to the retaining element 38. The stop element 56 is arranged to limit the rotational movement of the rotating element 26 relative to the gripping unit 12 during the operating step. The stop element 56 is constructed in one piece, in particular integrally, with the gripping unit 12. The stop element 56 is constructed on the gripping unit 12 in the vicinity of the rotating element 26. During the operating step, the retaining element 38 locks into the stop element 56. The counterclockwise rotational movement of the rotating element 26 is limited by the locking of the retaining element 38 into the stop element 56 (see Figure 5 ).

[0044] Figure 2A method for operating a cutting device 10 according to the invention, in particular a pipe cutting device, is shown. In a locking step 40, the upper slide unit 14 is locked relative to the lower slide unit 16, and in the locking step 40, the upper slide unit 14 is fixedly locked relative to the lower slide unit 16. In the locking step 40, a cylindrical member, in particular a pipe, is fixed between the lower slide unit 16 and the upper slide unit 14. In the locking step 40, the upper slide unit 14 is variably fixed relative to the lower slide unit 16. In the locking step 40, the upper slide unit 14 is locked relative to the lower slide unit 16 according to the diameter of the cylindrical member. In the locking step 40, a cylindrical member, in particular a pipe, is fixed between the cutting element 18 of the upper slide unit 14 and the holding unit 20 of the lower slide unit 16. In the locking step 40, a cylindrical member, in particular a pipe, is movably supported about a rotational axis and fixed between the cutting element 18 of the upper slide unit 14 and the holding unit 20 of the lower slide unit 16. (See Figure 3 1) and 2).

[0045] In the locking step 40, the friction locking element 24 causes the upper slide unit 14 to linearly move towards the lower slide unit 16 by a rotational movement of the rotary element 32. In the locking step 40, the upper slide unit 14 and the lower slide unit 16 are linearly supported relative to each other. In the locking step 40, the upper slide unit 14 linearly moves according to the diameter of the cylindrical member, in particular a pipe. In the locking step 40, the rotational movement of the rotary element 32 is converted into a linear movement of the upper slide unit 14 towards the lower slide unit 16. In the locking step 40, the linear movement of the upper slide unit 14 towards the lower slide unit 16 is restricted by the circumferential surface of the cylindrical member, in particular a pipe. In the locking step 40, the upper slide unit 14 is locked relative to the lower slide unit 16 by a clockwise rotational movement of the rotary element 32. In the locking step 40, by a clockwise rotational movement of the rotary element 32, the upper slide unit 14 linearly moves in the direction of the lower slide unit 16. In particular, it can be considered that in the locking step 40, by a counterclockwise rotational movement of the rotary element 32, the upper slide unit 14 linearly moves contrary to the lower slide unit 16. Alternatively, it can be considered that in the locking step 40, by a counterclockwise rotational movement of the rotary element 32, the upper slide unit 14 linearly moves in the direction of the lower slide unit 16 (see Figure 3 1) and 2)).

[0046] In the locking step 40, the actuating element 34 converts the rotational movement of the rotary element 32 into a linear movement via the friction locking element 24. In the locking step 40, by means of the actuating element 34, the rotational movement of the rotary element 32 is converted into a linear movement of the upper slide unit 14 towards the lower slide unit 16 via the friction locking element 24. In the locking step 40, by means of the actuating element 34, the rotational movement of the rotary element 32 is converted into a linear movement of the upper slide unit 14 via rollers. In the locking step 40, the rotational movement of the rotary element 32 is transmitted to the friction locking element 24 by the actuating element 34. In the locking step 40, the friction locking element 24, in particular the rollers, is guided along the outer edge of the drive element 34 by the rotational movement of the rotary element 32. In the locking step 40, the upper slide unit 14 moves linearly towards the lower slide unit 16 due to the frictional force formed between the actuating element 34 and the friction locking element 24. In the locking step 40, the rotational movement of the friction locking element 24 is converted into a linear movement of the upper slide unit 14 by another frictional force between the friction locking element 24 and the upper slide unit 14. In the locking step 40, by means of the rotational movement of the actuating element 34, the friction locking element 24, in particular the rollers, is moved in the direction of the rotational axis 28 of the rotary element 32. In the locking step 40, the rotational movement transmitted to the friction locking element 24 is transmitted to the upper slide unit 14, wherein the rotational movement is converted into a linear movement towards the lower slide unit 16. In the locking step 40, once the cutting element 18 of the upper slide unit 14 touches the circumferential surface of the cylindrical member, in particular a tube, the linear movement stops. In the locking step 22, when the rotary element 32 rotates clockwise, the rotational movement is converted into a linear movement via the friction locking element 24 (see Figure 3 1) and 2) and Figure 4 ).

[0047] In the machining step 42, the cylindrical member, in particular the tube, is held locked between the upper slide unit 14 and the lower slide unit 16 by the spring force of the friction locking element 24. In the machining step 42, the spring force of the rotary element 32 on the actuating element 34 and the upper slide unit 14 is maintained such that the locking of the upper slide unit 14 relative to the lower slide unit 16 is maintained. In the machining step 42, due to the spring force of the rotational movement of the rotary element 32, it is generated by the frictional force between the friction locking element 24 and the actuating element 34. In the machining step 42, the locking is maintained throughout the machining duration. In the machining step 42, the cutting element 18 of the upper slide unit 14 is guided rotatably around the cylindrical member, in particular the tube, on the circumferential surface of the cylindrical member, in particular the tube. In particular, it can be considered that in the machining step 42, the locking unit 22 has a spring element that alternatively and / or additionally maintains the locking of the upper slide unit 14 relative to the lower slide unit 16. (See Figure 3 3) and 4).

[0048] In machining step 42, the rotational movement is transferred from the rotary element 32 to the rotating element 26 by the frictional force between the friction locking element 24 and the actuating element 34. In machining step 42, once the upper slide unit 14 touches the circumferential surface of the cylindrical member, in particular a tube, and the locking of the upper slide unit 14 relative to the lower slide unit 16 ends, the rotational movement is transferred from the rotary element 32 to the rotating element 26. In machining step 42, the rotational movement is transferred from the rotary element 32 to the rotating element 26 by the frictional force between the friction locking element 24 and the actuating element 34. In machining step 42, the rotary element 32 and the rotating element 26 have the same rotational speed. The cutting element 18 of the upper slide unit 14 is guided around the cylindrical member, in particular a tube, by the rotational movement transmitted via the friction locking element 24 and the actuating element 34. In machining step 42, the cutting element 18 of the upper slide unit 14 is guided around the cylindrical member at least substantially perpendicular to the main extension direction of the cylindrical member, in particular a tube (see Figure 3 Figures 3) and 4)).

[0049] In the release step 44, a rotational movement opposite to that in the locking step 40 and the machining step 42 is performed, wherein the projection 36 of the rotating element 26 limits the rotational movement between the rotating element 26 and the rotary element 32. In the release step 44, the rotational movement of the rotary element 32 is reversed by means of the drive unit 30. In the release step 44, the drive unit 30 is made to perform a rotational movement opposite to that in the locking step 40 and the machining step 42 by means of the control and regulating device 52. In the release step 44, a counterclockwise rotational movement of the rotary element 32 is performed. In the release step 44, the frictional locking between the friction locking element 24, in particular a roller, and the actuating element 34 is cancelled by the reverse rotation of the rotary element 32. In the release step 44, the contact between the friction locking element 24, in particular a roller, and the actuating element 34 is cancelled by the reverse rotation of the rotary element 32, wherein the locking of the upper slide unit 14 relative to the lower slide unit 16 is cancelled. In the release step 44, the reverse rotational movement of the rotary element 32 is transferred to the rotating element 26. In the release step 44, the reverse rotational movement of the rotary element 32 is transferred to the rotating element 26 via the actuating element 34 and the projection 36 of the rotating element 26. In the release step 44, the projection 36 of the rotating element 26 touches the actuating element 34 during the reverse rotational movement of the rotary element 32, thereby transferring the reverse rotational movement of the rotary element 32 to the rotating element 26. Alternatively, it may be considered that the rotary element 32 has another stop that makes sense to a person skilled in the art, and the projection 36 of the rotating element 26 stops against the other stop in order to transfer the reverse rotational movement of the rotary element 32 to the rotating element 26 (see Figure 3 Figures 5) and 6)).

[0050] In the release step 44, a rotational movement opposite to that in the locking step 40 and the machining step 42 is performed, wherein the holding element 38 interrupts the transmission of the rotational movement from the rotating element 32 to the rotating element 26 and resets the cutting device 10 to the initial state. In the release step 44, once the holding element 38 hits the stop of the gripping unit 12, the opposite rotational movement from the rotating element 32 to the rotating element 26 is interrupted. In the release step 44, by the opposite rotational movement of the rotating element 26, the holding element 38 hits the stop of the gripping unit 12. In the release step 44, once the holding element 38 hits the stop of the gripping unit 12, the contact between the actuating element 34 and the projection 36 of the rotating element 26 is released. In the release step 44, the rotating element 26 is fixed in the initial state by being stopped at the stop of the gripping unit 12 by the holding element 38. In particular, it can be considered that in the release step 44, the rotating element 32 is stopped in the initial state by adjusting the rotational movement of the drive unit 30 (see Figure 3 of 7)).

Claims

1. A cutting device (10), in particular a tube cutting device, comprising: at least one gripping unit (12), At least one upper slider unit (14) and at least one lower slider unit (16), wherein: The upper slide unit (14) has a cutting element (18), the lower slide unit (16) has at least one holding unit (20), wherein the upper slide unit (14) is configured to be movably supported toward the lower slide unit (16), and at least one locking unit (22), the locking unit being configured to lock the upper slider unit (14) relative to the lower slider unit (16), It is characterized in that The locking unit (22) has a friction locking element (24), by means of which the locking unit (22) is locked.

2. The cutting device (10) according to claim 1, Features A rotating element (26) is provided for rotatably mounting the upper slide unit (14) and the lower slide unit (16) about a rotation axis (28).

3. The cutting device (10) according to claim 1 or 2, Features A drive unit (30) and a rotating element (32) are provided, wherein the drive unit (30) drives the rotating element (32) to perform a rotational motion.

4. The cutting device (10) according to any one of the preceding claims, It is characterized in that The locking unit (22) has a driver element (34) which is fixedly arranged on the rotation element (32).

5. The cutting device (10) according to any one of the preceding claims, It is characterized in that The friction locking element (24) is formed by a roller which is rotatably mounted in the vicinity of the upper slide unit (14).

6. Cutting device (10) according to any one of the preceding claims, It is characterized in that The rotary element (26) and the rotation element (32) are designed to be rotatably mounted relative to one another.

7. Cutting device (10) according to any one of the preceding claims, It is characterized in that The rotating element (26) has a protrusion (36) which is configured to limit the rotational movement between the rotating element (26) and the rotating element (32).

8. Cutting device (10) according to any one of the preceding claims, The invention is characterized by having a retaining element (38) which is arranged to limit the movement of the rotating element (26).

9. A method for operating a cutting device (10) according to the invention, in particular a tube cutting device, It is characterized in that In the locking step (40), the upper slider unit (14) is locked relative to the lower slider unit (16).

10. The method according to claim 9, It is characterized in that In a locking step (40), the friction locking element (24) linearly moves the upper slide unit (14) toward the lower slide unit (16) by means of a rotational movement of the rotational element (32).

11. The method according to claim 9, It is characterized in that In a locking step (40), the driver element (34) converts the rotational movement of the rotational element (32) into a linear movement via the friction locking element (24).

12. The method according to claim 9, It is characterized in that In a processing step (42), the locking of the cylindrical component, in particular a tube, between the upper slide unit (14) and the lower slide unit (16) is maintained by the spring force of the friction locking element (24).

13. The method according to claim 9, It is characterized in that In a processing step (42), a rotational movement is transferred from the rotating element (32) to the rotary element (26) by means of a friction fit between the friction fit element (24) and the driver element (34).

14. The method according to claim 9, It is characterized in that In a release step (44), a rotational movement opposite to that in the locking step (40) and the processing step (42) is performed, wherein the projection (36) of the rotary element (26) limits the rotational movement between the rotary element (26) and the rotary element (32).

15. The method according to claim 9, It is characterized in that In a release step (44), a rotational movement opposite to that in the locking step (40) and the processing step (42) is performed, wherein the holding element (38) interrupts the transmission of the rotational movement from the rotating element (32) to the rotary element (26) and resets the cutting device (10) to an initial state.

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