Tool machine with side contact body and support body

Abstract

The invention relates to a tool machine, in particular a semi-fixed or movable tool machine (10) and / or a sawing machine, for machining a workpiece (W) by means of a working tool (36), in particular a separating tool or a sawing tool, the tool machine (10) has a machine base (11), which is provided for placement on a foundation, and a drive assembly (30), which is arranged thereon and has a drive motor (32) and a tool receptacle (31), which can be driven by the drive motor (32), for the working tool (36), in particular for a separating tool, the machine base (11) has a bearing surface (14, 17) for placing the workpiece (W) and at least one side contact body (40, 41) with a side contact surface (42), which extends at an angle, in particular at a right angle, to the bearing surface (14, 17) and along a longitudinal axis (L), and wherein the tool machine (10) has at least one support body (70, 170) with a support surface (79), the support surface (79) can be fixed to the tool machine (10) opposite the bearing surface (14, 17) by means of a holding mechanism (60), such that the workpiece (W) is supported between the bearing surface (14, 17) and the support surface (79) in such a way that the workpiece (W) is supported against the side contact surface (42) for machining by means of the working tool (36), in particular for producing a coronal cut. According to the invention, the support body (70, 170) can be detachably fastened to the machine base (11) by means of the retaining means (60) in at least two longitudinal positions (L1, L2), which are different from each other, with respect to the longitudinal axis (L).

Description

Technical Field

[0001] This application is a divisional application of Chinese patent application 202080027961.5, filed on October 11, 2021, and entitled “Machine tool with side support body and support body”.

[0002] The invention relates to a machine tool, in particular a semi-fixed or movable machine tool and / or a sawing machine, for processing a workpiece by means of a working tool, in particular a separating tool or a sawing tool, wherein the machine tool has a machine base arranged for being placed on a foundation and a drive assembly arranged thereon with a drive motor and a tool holder for a working tool, in particular a separating tool, which can be driven by the drive motor, wherein the machine base has a support surface for placing the workpiece and at least one side support body with a side support surface, which is angled, in particular at right angles, to the support surface and extends along a longitudinal axis, and wherein the machine tool has at least one support body with a bearing surface, which can be fixed to the machine tool by means of a retaining mechanism opposite the support surface, so that the workpiece is supported against the side support surface, for example in a sandwich-like manner, between the support surface and the bearing surface for processing by the working tool, in particular for producing crown molding cuts. Background Art

[0003] This so-called cross-cut saw Machine tools of the type described are described, for example, in US Pat. No. 8,020,477 B2 or US Pat. No. 8,122,803 B2. The support body is arranged in a support position on a support surface of a machine base so that it supports the workpiece to be machined opposite the support surface. Thus, for example, a profile strip provided for fitting in an interior corner of a room can come into contact with the side contact surface and remain in position in an inclined position relative to the side contact surface and the support surface in order to carry out so-called crowning cuts.

[0004] The support body described in US 8,020,477 B2 guides the workpiece to be processed, for example, along a longitudinal guide at a side stop body or a side contact body and supports the workpiece approximately in a punctiform manner. In order to optimally support the workpiece, two support bodies are provided at a longitudinal distance from the longitudinal axis.

[0005] Although only one support body is provided for each side support body in US 8,122,803 B2, it has the following advantage over the technology described in US 8,020,477 B2, namely that its support surface extends to a certain extent along the longitudinal axis, so that the workpiece to be processed is supported on the support body over a greater length about the longitudinal axis than in the case of the support body according to US 8,020,477 B2.

[0006] However, the handling of the support body or its support of the workpiece to be machined is not optimal in the two concepts described. Summary of the invention

[0007] It is therefore an object of the present invention to provide an improved support of a workpiece in a machine tool of the type mentioned in the introduction.

[0008] In order to achieve this object, it is provided in a machine tool of the type mentioned at the outset that the bearing body can be detachably fixed on the machine base by means of holding means in at least two longitudinal positions different from one another with respect to the longitudinal axis.

[0009] That is, according to the concept of the present invention, at least one support body or, if necessary, a plurality of support bodies are arranged not in a fixed position with respect to the longitudinal axis of the side contact surface, but in an adjustable manner. As a result, the support body can be brought to the optimal position with respect to the workpiece and / or the working tool, respectively. That is, the support body can be adjusted, for example, along a linear axis toward the flat side of the saw blade or away from the flat side. In particular, when a longer or shorter workpiece is in contact with the side contact surface, the position of the support body can be optimally adjusted with respect to the longitudinal axis. For at least one support body, two or more longitudinal positions can be provided with respect to the longitudinal axis, for example, a fixed first longitudinal position and a fixed second longitudinal position, but other longitudinal positions can also be provided. In addition, it is feasible to provide a plurality of support bodies, for example, two support bodies. It is feasible that a respective support body is assigned to the side stop surface or a side stop surface is assigned to a plurality of support bodies and thus to a plurality of, for example, two, support surfaces.

[0010] The support body can also be referred to as a pressing member or a pressing body, which can be said to press the workpiece to be processed with respect to the bearing surface. However, the support body can also be referred to as a support stop body. It is also feasible that at least one side contact body is referred to as a side stop body.

[0011] The machine tool is expediently a mobile machine tool which can nevertheless be used stationarily. It is particularly advantageous if the machine tool is transportable, i.e. has a weight of less than 60 to 80 kg, but can be placed on a foundation for sawing operations or other processing of workpieces. During the execution of separating cuts or sawing or other workpiece processing, such as drilling or milling operations, the workpiece can be placed on the support surface for processing by the working tool and can be placed on at least one lateral contact surface. At the same time, at least one contact surface of the support body supports the workpiece in the direction of force towards the contact surface.

[0012] A preferred embodiment of the present invention provides that the machine tool is a table circular saw, a cross-cut saw, a pull saw or a cross-cut pull saw (Kapp-Zug- ). It is particularly advantageous if the machine tool is a sawing machine for semi-stationary operation, ie it can be carried to a construction site and operated there, for example.

[0013] In principle, it is possible that at least one bearing body is, for example, directly fixed or fixable or supported on a machine base or a support surface. Thus, the bearing body can be, for example, adjustable about the longitudinal axis independently of the side contact body.

[0014] However, a preferred concept provides that the bearing body is arranged or can be arranged on at least one lateral contact body.

[0015] As a result, for example, the bearing surface is arranged optimally with respect to the lateral contact surface.

[0016] Furthermore, the support body can be adjustable, for example together with the side contact bodies, between longitudinal positions along the longitudinal axis. That is, when the side contact bodies are fixed to the machine base in other longitudinal positions along the longitudinal axis, the longitudinal position of the support body is changed at the same time, so that the support body is particularly well positioned relative to the machine base or the support surface.

[0017] The support body can be arranged on the side contact body in a fixed position. For example, a support protrusion can be arranged on the side contact body, and the support protrusion forms the support body.

[0018] Preferably, at least one support body is detachably fixed and / or movably supported by a fixing mechanism at the corresponding side contact body. In other words, the support body can be removed from the side contact body or assembled thereon.

[0019] The holding means can be provided for the purpose of fixing the bearing body on the machine base, ie they merely fix or support the bearing body in a detachable manner relative to the machine base.

[0020] However, it is preferred that the holding device is or has a holding device for holding at least one side stop body at the machine base, so that the support body can be fixed in at least two longitudinal positions about the longitudinal axis at the machine base by adjusting the side stop body. It is feasible that the support body can be adjusted between the longitudinal positions together with the side stop body. This enables particularly simple handling. However, it is also feasible that the side contact body can be adjusted between the longitudinal positions without the support body mounted thereon, and the support body is fixed to the side contact body when the side contact body has already occupied the corresponding longitudinal position. In both scenarios, it is feasible that by adjusting the side stop body along the longitudinal axis with respect to the machine base, the position of the support body with respect to the longitudinal axis can also be changed. That is to say, when, for example, a longer workpiece is to be processed, the side stop body can be fixed to the machine base with respect to the longitudinal axis at a larger distance relative to the working tool than in the case of a shorter workpiece. At the same time, the longitudinal position of the bearing body with respect to the longitudinal axis can be varied so that it is optimally positioned with respect to the longitudinal axis for shorter and longer workpieces and can accordingly optimally support the workpieces.

[0021] The holding device expediently has a base side contact surface which is aligned with the side contact surface of the side contact body when the side contact body is mounted on the holding device. Thus, for example, the base side contact surface protrudes in a fixed position in front of the support surface. The base side contact surface is extended, so to speak, by the side contact surface of the side contact body about an axis extending away from the support surface (for example, a vertical axis during operation).

[0022] Advantageously, it is provided that the holding device has clamping means for clamping at least one side contact body or at least one support body relative to the machine base and / or has a positive-fitting contour for positively holding at least one side contact body or at least one support body relative to the machine base.

[0023] The clamping mechanism enables, for example, the fixing of the support body or the side contact body in a plurality of longitudinal positions with respect to the longitudinal axis, in particular the stepless adjustment of the support body with respect to the longitudinal axis. The form-fitting contour comprises, for example, rear gripping contours, grooves and groove projections, hooks and hook receptacles, which engage with each other, at the components to be fixed to each other, for example at the side contact body and the machine base or at the support body and the machine base.

[0024] In order to enable manipulation between a fixed position and a disengaged position, in which the corresponding side abutment body or support body is fixed in a fixed position relative to the support surface, and in which the side abutment body or support body can be moved relative to the support surface, in particular can be removed from the support surface, the retaining mechanism, preferably an actuating device, in particular a screwing device, has one or more rods or the like.

[0025] The holding mechanism expediently has a linear guide for linearly adjusting at least one side abutment body and / or at least one support body along the longitudinal axis. The linear guide comprises, for example, a guide groove into which a guide projection engages. The guide groove and / or the guide projection extend, for example, parallel to the longitudinal axis. It can be provided that at least two guide projections and / or at least two guide grooves are provided, which extend along a guide axis extending parallel to the longitudinal axis and have a longitudinal spacing with respect to the guide axis. In other words, it is feasible that the guide projection and / or guide groove are continuous with respect to the guide axis, but it is also feasible that, for example, a segmented guide projection or guide groove is provided.

[0026] The side contact surface of at least one side contact body can have an equal vertical extension along the longitudinal axis with respect to the vertical axis, which is angled relative to the longitudinal axis. That is to say, the side contact surface can be at the same height along the longitudinal axis over the entire length of the side contact body.

[0027] However, the preferred concept is to provide a larger free space for a working tool at a section of the side contact body, which is subsequently referred to as the tool section, which is arranged closer to the working tool. As a result, the working tool can be inclined, for example, along an axis transverse to the longitudinal axis of the side contact surface, in particular to establish an inclined cut. That is, it is preferably provided that the side contact surface of at least one side contact body has a support section and a tool section, wherein the side contact surface in the area of ​​the support section extends farther before the support surface than in the area of ​​the tool section, and the tool section is provided to provide a larger free space for the working tool. The above-mentioned explanations relate to the following state, that is, the side contact body is fixed at the machine base. For example, the side contact body has different height extensions about the vertical axis at the longitudinal end areas opposite to each other about the longitudinal axis, and the vertical axis is angled relative to the longitudinal axis. It is feasible that the side contact body has a step between its longitudinal ends about the longitudinal axis and / or has an inclined direction at the side facing away from the support surface or opposite to the support surface, especially the narrow side.

[0028] Advantageously, it is provided that at least one bearing body is arranged or can be arranged in the region of the support section and that at least one side contact body can be adjusted with respect to the machine base and / or with respect to the longitudinal axis between a first operating position in which the tool section is arranged closer to the working tool than the support section and a second operating position in which the support section is arranged closer to the working tool than the tool section. The first operating position can, for example, be an operating position in which the machine tool is operated without the at least one bearing body, while the second operating position is an operating position in which the bearing body is arranged at the machine tool.

[0029] For example, it is advantageous if the machine tool has at least two side abutment bodies which are arranged or can be arranged on mutually opposite sides of the working tool. If the two side abutment bodies can be detachably connected to the machine tool, in particular to its machine base, the operator can adjust the side abutment bodies between a first and a second operating position, wherein the side abutment body which is arranged first to the left next to the working tool with respect to the longitudinal axis and the side abutment body which is arranged first to the right next to the working tool with respect to the longitudinal axis can be interchanged for assuming the first operating position and the second operating position.

[0030] The preferred conception is that each side abutment body can be fixed to the machine base in a releasable manner in at least two longitudinal positions about the longitudinal axis by means of a retaining mechanism. Thus, by means of each of the side abutment bodies, at least one bearing body assigned to it can be adjusted along the longitudinal axis.

[0031] At least one bearing body can be adjusted with respect to the bearing surface between at least two longitudinal positions along the longitudinal axis by means of a holding device assigned thereto. The further adjustability of the at least one bearing body with respect to the bearing surface between at least two longitudinal positions along the longitudinal axis is advantageously provided by means of a fixing device, by means of which the at least one bearing body is detachably fixed and / or movably supported on the corresponding lateral contact body. Thus, the at least one bearing body can be adjusted with respect to the bearing surface in two or more longitudinal positions along the longitudinal axis by means of the holding device and / or the fixing device.

[0032] Advantageously, it is provided that the machine tool has at least two side resting bodies. The side resting bodies are advantageously arranged or can be arranged at mutually opposite sides of the working tool. Advantageously, the two side resting bodies can be adjusted relative to the machine base, wherein it is possible that one of the side resting bodies is arranged, for example, in a fixed position relative to the support surface. Preferably, each side resting body can be adjusted towards the working tool or away from the working tool.

[0033] Advantageously, the support surface of at least one support body or the support body as a whole can be fixed in a fixed position by means of a fixing device on a part of the machine tool that is fixed in position with respect to the support surface, in particular at least one side contact body, at at least one vertical spacing with respect to the support surface, preferably at least two vertical spacings that are different from each other, wherein the vertical spacing extends along a vertical axis that extends transversely, in particular at a right angle, to the support surface. However, it is also possible that the support body can be connected or detachably connected to other parts of the machine tool that serve as side contact bodies, for example to the machine base, by means of the fixing device. As a result, for example, the spacing or vertical spacing between the support surface can be matched in order to hold the workpiece sandwich-like between the two surfaces.

[0034] The fixing means comprises, for example, clamping means for clamping the support body to a fixed component of the machine tool, screwing means for screwing the support body to the fixed component or screwing the support body to the fixed component or the like. It is also advantageous if the fixing means has a form-fitting contour for holding the support body in a form-fitting manner relative to the fixed component, for example at least one form-fitting projection and at least one form-fitting receptacle, which engage in one another.

[0035] An advantageous concept provides that the fixing device has a bearing, in particular a linear bearing and / or a linear guide, for adjusting at least one bearing body between at least two vertical distances, in particular along an adjustment axis oriented transversely, in particular at right angles, relative to the bearing surface, in which the bearing surface has different distances relative to the bearing surface for the workpiece. The bearing can be, for example, a sliding bearing or a linear bearing, but can also be a pivot bearing or a swivel bearing. A combination of sliding bearings and swivel bearings is possible without any problems. However, a linear bearing of the bearing body and thus of its bearing surface is preferred.

[0036] Advantageously, for example, there are two linear bearings and / or two linear guides, namely on the one hand a linear guide about the longitudinal axis and on the other hand a linear guide along the adjustment axis, so that the bearing surface can be optimally adjusted about the longitudinal position along the longitudinal axis of the side contact surface and about the adjustment axis (that is, the distance between the bearing surface and the bearing surface of the machine base).

[0037] In the case of the aforementioned bearings, in particular linear bearings or linear guides, but also in the case of pivot bearings, it is advantageous if the fixing means comprises a bolt which penetrates a bearing recess, in particular a longitudinal recess, of the bearing. The bolt can, for example, simultaneously be a component of the clamping means explained below. The bolt can, for example, form the bearing axis of the pivot bearing. However, the bolt can also form a guide body, on which the bearing body is guided, for example linearly.

[0038] Preferably, the fastening device has a bolt which forms a component of the clamping means for clamping the bearing body to a part of the machine tool which is fixed in position relative to the support surface.

[0039] An operating element, in particular a hand wheel, is arranged on the bolt body, for example, for gripping by an operator, so that the operator can perform rotational manipulation of the bolt body. The bolt body is, for example, held on the corresponding support body in a manner that prevents it from coming off. Advantageously, the bolt body is rotatably supported on a rotation support receptacle of the support body, wherein a wall of the support body is sandwiched between the operating element, in particular a hand wheel, and the anti-coming off portion.

[0040] The bolt body is preferably screwed or screwable into a screw receptacle of a component that is fixed in position relative to the contact surface, for example into a screw receptacle on one or both of the side stop bodies.

[0041] Advantageously, the fastening means have rotation-proof contours which engage in one another in a form-fitting manner in order to hold the bearing surface rotationally fixed relative to the contact surface.

[0042] A suitable variant provides that the anti-twist contour comprises or is formed by at least one guide projection of the linear guide extending along the adjustment axis, which guide projection engages in a guide receptacle of the linear guide extending along the adjustment axis. For example, a guide groove and a guide projection are arranged on the side contact body, on which the corresponding support body is arranged, and on the support body, which guide projection engages in the guide groove. Preferably, the guide groove is arranged on the side stop surface of the side contact body.

[0043] A screw-receiver for the bolt body is expediently provided at the bottom of the guide groove.

[0044] In general, it is advantageous if at least one part of the fastening means is arranged on a lateral contact surface of the lateral contact body, while other parts of the fastening means cooperating therewith are arranged on a support body to be arranged on the lateral contact body.

[0045] The parts of the fastening means which are arranged on the side contact body preferably do not project beyond the side contact surfaces of the side contact body.

[0046] It is also advantageous if the machine tool has an adjustment mechanism for adjusting at least one support body between a use position and a non-use position, in which the support surface is arranged to support the workpiece next to the side contact surface and extends in front of the side contact surface, and in which the support surface is moved away from the side contact surface, in particular in such a way that the side contact surface is ready to contact the workpiece over its entire vertical extension. In the non-use position, preferably the entire side contact surface of the side contact body is free to contact the workpiece. For example, the adjustment mechanism comprises a guide for the support body, which extends from the side contact surface of the side contact body to its upper side or to the back side facing away from the side contact surface. In addition, the adjustment mechanism can also, for example, comprise a swing bearing, by means of which the support body can be adjusted toward the side contact surface into the use position and away from the side contact surface into the non-use position. The swing bearing comprises, for example, a swing axis, which extends parallel to the longitudinal axis of the side contact surface. The bearing body can be pivoted and / or displaced by means of the adjustment mechanism, for example, away from the lateral contact surface and thus away from the use position in the direction of the rest position.

[0047] Advantageously, the machine base has a pivot base on which a pivot part is supported pivotably about a pivot axis in order to change the relative position of a tool holder for a working tool, such as a separating tool, and a lateral contact surface provided for placing a workpiece. The workpiece can be placed, for example, laterally or with its underside, on the contact surface.

[0048] It is advantageous both in the case of at least one side contact body and in the case of at least one support body that they are, for example, plate-shaped or formed by a plate. The side contact body is advantageously made of metal, for example of aluminum, while the support body is preferably made of plastic. The support body and / or the side contact body can be reinforced by a rib structure.

[0049] It is particularly advantageous if the swivel element and / or the swivel base provide a bearing surface or abutment surface for the workpiece. The swivel element or the swivel base or both can also provide a support base for the drive assembly. For example, the drive assembly is arranged or held on a carrier which, when the machine tool is in use, projects upwards in front of the bearing surface or abutment surface.

[0050] The drive motor is expediently an electric drive motor.

[0051] The drive motor is advantageously arranged to drive the tool holder and thus the separating tool. It is also possible to provide a transmission between the drive motor and the tool holder, for example for speed change and / or in the form of an angle transmission and / or for generating an oscillating movement of the separating tool.

[0052] Advantageously, the tool holder, in particular the drive assembly as a whole, can be swiveled about a transverse swivel axis by means of a depth swivel bearing or a transverse swivel bearing towards and away from a support surface for the workpiece. The depth or transverse swivel axis preferably extends horizontally when the machine tool is used. The machine tool can then be, for example, a transverse saw.

[0053] An advantageous concept, in particular in the design of the machine tool as a saw or as a cross-cut saw, provides that the drive assembly is supported linearly along the longitudinal axis at a linear guide relative to the swing base for performing longitudinal cutting with the aid of a separating tool. The linear guide comprises, for example, at least one elongated guide body, in particular a guide rod or a guide bar, which extends along the longitudinal axis. At least one elongated guide body (in particular a guide rod or a guide bar) can be moved relative to the machine base of the machine tool. For example, in the case of a tower-type carrier, a support receptacle is provided for at least one elongated guide body. It is also possible that the elongated guide body is arranged at the machine base in a fixed position. It is particularly preferred that the drive assembly is supported linearly and movably relative to the machine base, in particular at a carrier in the form of a slide, which extends upward in front of the machine base. A depth swing support or a cross-cutting swing support is suitably provided at the slide.

[0054] Preferably, the drive assembly is supported pivotably about the machine base at right angles about the tilt-swivel axis by means of a tilt-swivel bearing relative to the machine base. Thus, for example, bevel cuts or oblique cuts can be performed in the workpiece.

[0055] The combination of the two aforementioned measures provides that the drive assembly is supported on the one hand linearly movable and on the other hand tiltably pivotable relative to the machine base. Advantageously, the carrier for the drive assembly is pivotable relative to the machine base about a tilt-pivot axis by means of a tilt-adjustable bearing and a linear guide for the drive assembly is provided on the carrier. For example, at least one elongated or rod-like guide body projects in front of the carrier and extends in particular over a support surface for the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Next, embodiments of the present invention will be explained with reference to the accompanying drawings. Figure 1 A perspective oblique view of a machine tool is shown, wherein Figure 2 Detail D1 is shown in FIG. Figure 3 shows a side view of a machine tool according to the previous figure, Figure 4 Shown by Figure 1 Section of detail D2 of the machine tool, approximately along the section line AA, Figure 5 Detail D2 is shown, however, along the Figure 1 The section line BB in Figure 6 A perspective oblique view of a variant of a machine tool according to the preceding figures is shown, which has a Figure 7 Shown from the rear, Figure 8 Shown by Figure 7 A detail of the view of D3 is taken approximately along the Figure 7 The section line CC in Fig. 9 Show according to Figure 5-8 A perspective oblique view of a side stop body of a machine tool, Fig.10 From the rear, the Figure 5 Partial view of a machine tool, Fig.11 Shown by Figure 7 Detail of D3, approximately along the Figure 7 The section line DD in Fig.12 The oblique view according to the perspective view toward its rear side shows Figure 5-11 A support body for a machine tool. DETAILED DESCRIPTION

[0057] The machine tool 10 has a machine base 11, which can be placed on a foundation. The machine tool 10 is, for example, a sawing machine, which is semi-fixed, that is, the sawing machine can be carried to a corresponding use position. Here, the machine tool 10 can be placed on a foundation and used.

[0058] A drive assembly 30 having a drive motor 32 for rotating a tool holder 31 is arranged on the machine base 11. The drive motor 32 drives the tool holder 31 directly or via a transmission mechanism. A working tool 36, such as a separating tool or a saw blade, is held on the tool holder 31 so that a workpiece W can be processed, such as cut, by means of the machine tool 10.

[0059] The machine base 11 has a pivot base 12 on which a pivot part 15 is pivotably mounted about a pivot axis GS, which is typically vertical during use. The pivot base 12 has feet 13 for lowering on a foundation and a support section 23, from which the feet 13 protrude and which has a support surface 14 on its side facing the working tool 36 or the drive assembly 30 (on its upper side in the operating position) for placing a workpiece W. Between the support sections 23, a receiving space for the pivot part 15, in particular a pivot part base 16, is provided, in which the pivot part is rotatably or pivotably mounted about the pivot axis GS.

[0060] The swing part 15 has a support surface 17 for placing a workpiece W on its side facing the working tool 36 or the drive assembly 30 (on its upper side in the operating position), and the support surface 17 is aligned with the support surface 14. Thus, the workpiece W can be placed on the support surfaces 14 and 17 and supported by them for processing by the working tool 36.

[0061] An actuating arm 18 protrudes from the pivoting part base body 16 for gripping by an operator, which forms an actuating handle for pivoting the pivoting part 15 relative to the pivot base 12. A slot 19 extends from the actuating arm 16 and the support surface 17, into which a working tool 36 can be inserted.

[0062] Furthermore, a swivel securing mechanism 20 is provided between the swivel member 15 and the swivel base 12 in order to secure the swivel member 15 in one or more predetermined swivel positions about the swivel axis GS with respect to the swivel base 12. The swivel securing mechanism 20 can be actuated by means of an actuating element 21 between a fixed position and a release position, in which the swivel member 15 is fixed or released with respect to the swivel base 12. For example, a scale 22 is provided on the swivel base 12 to indicate the respective swivel position.

[0063] A carrier 25 projects from the machine base 11 and, in the operating position, projects upward in front of the support surfaces 14 , 17 .

[0064] On the carrier 25, the drive assembly 30, in particular the tool holder 31 and thus the working tool 36 are supported by means of a support mechanism 24, in particular in a multi-axis pivotable and / or linearly adjustable manner, so as to position the working tool 36 relative to the support surfaces 14, 17 and thus relative to the workpiece W lying thereon, in order to process the workpiece W.

[0065] A tilting and pivoting bearing 26 is provided on the carrier 25 , by means of which the drive assembly 30 is supported so as to be pivotable about a tilting and pivoting axis SA. For example, a support arm 27 of the drive assembly 30 is supported on the pivoting bearing 26 so as to be pivotable about the tilting and pivoting axis SA.

[0066] The support arm 27 projects in front of the carrier 25 and carries a linear guide 33 at its end region 28 facing away from the machine base 11. The linear guide 33 comprises, for example, a rod-shaped guide body 34, on which the slide 33 is supported so as to be displaceable along the adjustment axis X. A working tool 36 is arranged between the rod-shaped guide bodies 34. The working tool 36 can be moved forward and backward along the adjustment axis X by means of the linear guide 33. The slot 19 extends parallel to the adjustment axis X.

[0067] The adjustment axis X runs parallel to the tilting and pivoting axis SA. The adjustment axis X and the tilting and pivoting axis SA typically run horizontally when the machine tool 10 is in use.

[0068] The adjustment axis X and the tilting and pivoting axis SA extend at right angles to the pivoting axis GS.

[0069] The drive element 37 with the drive motor 32 and the tool receptacle 31 can itself be arranged in a stationary manner on the slide 29 , so that the working tool 36 can only perform linear movements relative to the support surfaces 14 , 17 .

[0070] However, the drive element 37 is supported so that it can pivot about the depth adjustment axis TS by means of a transverse pivot bearing or depth pivot bearing 35, so that the working tool 36 can assume different depth positions relative to the support surfaces 14, 17 (the depth positions are Figure 3 ), so as to be accordingly sunk into the workpiece W. For example, the working tool 36 can also be sunk into the slot 19.

[0071] The depth adjustment axis TS runs at a right angle to the tilting and pivoting axis SA and / or at a right angle to the adjustment axis X and at a right angle to the pivoting axis GS.

[0072] That is, the separating cuts can be introduced into the workpiece W in different orientations by means of the support means 24, but for this purpose the workpiece W must be fixedly held or fixedly supported on the machine tool 10. On the one hand, the workpiece W can be supported on the central support surface 17, but also on the support surface 14 extending the support surface 17, so that it is optimally supported from below, so to speak. On the other hand, however, further contact surfaces or stop surfaces are provided, which are explained later.

[0073] The machine tool 10 has side contact surfaces 42 which are angled, in the present case at right angles, relative to the support surfaces 14, 17 and are provided on the side contact bodies 40, 41. The working tool 26 is arranged between the side contact bodies 40, 41. The side contact surfaces 42 are aligned with one another and extend along the longitudinal axis L.

[0074] The side contact bodies 40 , 41 are or include, for example, contact plates or side stop plates.

[0075] The side contact surface 42 has a tool section 43 and a support section 44, wherein the tool section 43 extends less in front of the support surface 14, 17 with respect to the vertical direction or the vertical axis H than the support section 44. This means that the support section 44 also optimally supports the workpiece W, which, when placed on the support surface 14, 17, projects further upward in front of the support surface. Conversely, the tool section 43 provides free space for movement for the working tool 36 when the working tool is swung out of its center position shown in the drawing, for example, about the tilting and swinging axis SA, so that the working tool has an inclination of up to 45° or more with respect to the center position. In the center position, for example, the cutting plane of the working tool 36 is orthogonal to the support surface 14, 17 and to the side contact surface 42.

[0076] That is, the side abutments 40, 42 are arranged or can be arranged on mutually opposite sides of the working tool 36, wherein, in a normal sawing position (not shown in the drawings), the tool section 43 is closer to the working tool 36 than the support section 44, so that the workpiece W is optimally supported away from the working tool 36 or at a greater distance relative to the working tool 36. That is, with respect to the vertical axis H, each of the side abutments 40, 41 is lower in a longitudinal end region 45 with respect to the longitudinal axis L than in a longitudinal end region 46 opposite thereto, in which the support section 44 is arranged.

[0077] The side contact bodies 40, 41 have a shorter extension in the longitudinal end region 45 between their upper side 47 and their lower side 50 than in the longitudinal end region 46. From the longitudinal end region 45 to the longitudinal end region 46, the upper side 47 has, for example, a rising inclined section 48, that is, the height of the respective side contact body 41, 42 increases, in particular continuously, from the longitudinal end region 45 in the direction of the support section 44. In the region of the support section 44, the spacing between the upper side 47 and the lower side 50 remains constant, for example, that is, the narrow sides of the side contact bodies 40, 41 extend, for example, parallel to each other at the lower side 50 and the upper side 47.

[0078] However, a step 48A may also be provided between the tool section 43 and the support section 44 .

[0079] The holding device 60 serves to fix the lateral contact bodies 40, 41 relative to the contact surfaces 14, 16 and / or on the machine base 11. The holding device 60 is fixed to the pivot base 12 of the machine base 11, for example, on the support surface 14.

[0080] The holding device 60 comprises a holding body 38 , for example a profile body. The holding body 38 can be fixed to the machine base 11 by means of screw fasteners 39 or other similar fastening means, but can also be integral with the machine base 11 .

[0081] The holding body 38 extends from the bearing surface 40 of the pivot base 12 in the direction of the pivot part 15, so that the longitudinal end region of the holding body 38 extends beyond the bearing surface 17 in the direction of the slot 19. The holding body 38 has a base-side contact surface 59, which is aligned with the side contact surface 42 of the side contact bodies 40, 41 when it is arranged on the holding body 38.

[0082] On the underside of the lateral contact bodies 40, 41, on the one hand, a lower support surface 51 is provided, which is supported on the holding body 38 on its side facing away from the bearing surfaces 14, 17 (on its upper side in the use position). Between the projections 57, a guide groove 56 of the linear guide 55 is realized, which forms a component of the holding device 60.

[0083] The guide projections 52, 53 aligned with each other protrude before the lower support surface 51 of the side contact body 40, 41, which can be brought into a guiding engagement with the guide groove 56 in order to realize a linear guide 55. A rear gripping projection 54 protrudes transversely to the longitudinal axis of the guide projections 52, 53, which can be brought into a rear gripping with the projection 57 protruding into the guide groove 56. The projection 57 thus forms a rear gripping contour 58 for rear gripping by the rear gripping projection 54 of the side contact body 40, 41. The guide projections 52, 53 and the rear gripping projection 54 protruding transversely or laterally therefrom form a T-shaped structure, for example in a front view.

[0084] By means of the linear guide 55, the side contact bodies 40, 41 can be adjusted along the longitudinal axis L so that, for example, a workpiece W that projects further in front of the machine base 11 can be supported at a greater distance from the machining plane of the working tool 36 on the side contact surface 42. For example, the side contact bodies 40, 41 can be adjusted along the linear guide 55, in particular steplessly, between the longitudinal positions L1 and L2 and further longitudinal positions that are not shown.

[0085] In the corresponding longitudinal position, the fixing of the holding mechanism 60 can be achieved by means of a clamping device 61. The clamping device 61 comprises a clamping body 62, which can be adjusted between a clamping position and a disengaged position or a fixing position and a disengaged position by means of a pull rod 63 or other operating elements by means of an operating rod 64. The clamping body 62 is accommodated in the guide groove 56. The clamping body 62 is preferably plate-shaped. The clamping body 62 is aligned with the guide protrusions 52, 53. For example, the clamping body 62 is approximately aligned with the rear gripping protrusion 54 and extends transversely in front of the pull rod 63.

[0086] In the clamping position or fixing position, the clamping body 62, which is designed, for example, in the manner of a groove slide, bears against the projection 57 of the guide groove 56 in a clamping fit, see Figure 8 In contrast, in the disengaged position the clamping fit is eliminated, ie the clamping body 62 is arranged, for example, at a distance from the projection 57 , so that the respective lateral contact body 40 , 41 can be displaced along the longitudinal axis L by means of the linear guide 55 .

[0087] The actuating lever 64 is pivotably mounted about a pivot axis BH on the respective lateral contact body 40, 41 by means of an axle element 65. The actuating lever 64 has a bearing section extending about the axle element 65 with a bearing surface 66 which can be supported on a support surface 67 fixed in position relative to the respective lateral contact body 40, 41.

[0088] The actuating lever 64 can be adjusted in order to move the clamping means 61 from a clamping position in which the actuating lever 64 occupies, for example, a Figure 7 The position shown by the solid line in FIG. Figure 7 In the position shown in dashed lines in FIG. 1 , in which the bearing surface 66 is pressed against the support surface 67 with a small force or lifted from the support surface, the tie rod 63 releases the clamping body 62 to move away from the projection 57 or can actively move away from the projection 57. In its position assigned to the clamping position (at Figure 7 In the embodiment shown in dashed lines in FIG. 1 , the operating lever 64 preferably occupies the top dead center position.

[0089] However, instead of the corresponding side contact body 40 or 41, a slightly modified side contact body can also be used, for example, instead of the side contact body 41, the side contact body 141 shown by way of example can be used. With respect to the holding device 60, the side contact body 141 corresponds to the side contact bodies 41 and 42. In addition, the side contact body 141 should be understood by way of example, that is, instead of the side contact body 40, a side contact body correspondingly matched in geometry, which can be used on the left side, can be provided, which, however, is mirror-symmetrical with respect to the side contact body 141 with respect to the support section 44 and the tool section 43.

[0090] In any case, it is possible for the side contact bodies 40 , 41 , 141 to have either a support section 44 arranged closer to the working tool 36 (as shown in the figures) or a tool section 43 arranged closer to the working tool 36 (for example when the bearing bodies 70 , 170 explained below are not used).

[0091] The support body 70, 170 can be detachably fixed to the side contact body 40, 41, 141, for example, by means of a fixing device 80. The side contact body 70, 170 has a support surface 79, which is opposite to the support surface 14, 17 when the support body 70, 170 is fixed to the side contact body 40, 41, 141, so that the workpiece W is held in a sandwich-like manner between the support surface 79 and the support surface 14, 17, for example, according to Figure 3 The inclined position is particularly suitable for performing so-called crowning saw cuts. Here, the workpiece W is optimally supported with its narrow side WS on the support surface 79 and can also be supported on the side contact surface 42.

[0092] The support body 70, 170 has a plate body 71, 171. The plate body 71 is rectangular in a top view, while the plate body 171 of the support body 170 is wider in the region of its support surface 79, so that a longer or larger support of the workpiece W can be achieved compared to the support body 70. In the region of the support surface 79, the support body 170 has, for example, a wider support foot or a wider foot section.

[0093] The plate body 70, 170 has a longer narrow side wall 72, which extends between shorter narrow side walls 73, 74, 174. A bearing surface 79 is arranged on the narrow side walls 74, 174 of the plate body 71, 171.

[0094] In the case of the bearing body 170 , a recess 179A is provided in the region of its bearing surface 79 .

[0095] The plate body 71, 171 has a base wall 76 which is reinforced by a rib structure 77 and extends between the respective narrow side walls 72, 73, 74, 174. The end sides of the narrow side walls 72, 73, 74, 174 facing away from the base wall 76, and advantageously also the end sides of the ribs of the rib structure 77, provide a support surface 75 for support on the side contact surface 42. This means that the respective support body 70, 170 can be supported in a planar manner by the side contact surface 42 in the region of the support surface 75.

[0096] A through-opening 78 , in the present case a longitudinal slot, is provided on the base wall 76 , which through-opening is penetrated by a bolt 81 of a fastening device 80 .

[0097] A handle 82 is arranged on the bolt body 81 for rotational actuation by an operator. In the case of the support body 70 , the handle 82 extends before the base wall 76 , while in the case of the support body 170 , the handle is sunken into the recess 177 , so that the handle does not extend before the base wall 76 .

[0098] The bolt body 81 is held on the bearing body 70 , 170 in a captive manner by a captive member 83 , such as a disk, a nut or the like.

[0099] The bolt body 81 can be screwed into the screw receiving portion 84 on the corresponding side contact body 40, 41, 141 to clamp the support body 70, 171 with the side contact body 40, 41, 141. Therefore, the fixing mechanism 80 is designed as a clamping mechanism or the bolt body 81 and the handle 82 (the handle is supported on the base wall 76) together form a clamping device 80A for clamping the support body 70, 171 with the side contact body 40, 41, 141.

[0100] When the threaded fastener or bolt 81 is disengaged, that is, when the clamping means 80A assumes the disengaged position, the corresponding bearing body 70, 171 can be adjusted along the vertical axis H within the scope of an adjustment movement VH in order to bring the bearing surface 79 into contact with the workpiece W, in particular the narrow side WS of the workpiece. Thus, the bearing surface 79 can be adjusted relative to the workpiece W with a linear adjustment movement VH relative to the vertical axis H. By disengaging the clamping means 61, an adjustment movement VL transverse to the vertical axis, that is, in the direction of the longitudinal axis L, can be achieved. Thus, the bearing surface 79 can be optimally positioned relative to the workpiece W both relative to the longitudinal axis L and relative to the vertical axis H.

[0101] A bearing element 85 , such as a linear bearing element or a sliding bearing element and / or a pivot bearing element, is arranged between the bearing element 70 , 170 and the lateral contact element 40 , 41 , 141 .

[0102] In the case of the bearing body 70, the bearing element 85 can be used, for example, as a linear bearing element, in that, for example, the bearing body 70 can be displaced along a slot forming the bearing element recess 78A, which slot is realized by the through-opening 78. Furthermore, the bearing element 85 can also be used as a pivot bearing element, in order to utilize, for example, not only narrow side walls 73 or 74 that are shorter than the bearing surface 79, but also longer narrow side walls 72. That is, when the clamping means 80A is disengaged, the bearing body 70 can be twisted about the axis of the bolt body 81.

[0103] In the case of the bearing body 171, the bearing element 85 is realized as a linear bearing element with a linear guide 86. The linear guide 86 comprises a guide receptacle 87, for example a guide groove, on the side contact body 141, into which at least one guide projection 88 (in the present case two guide projections 88) engages, so that the bearing body 171 can be adjusted linearly relative to the side contact body 141 along the adjustment axis V in an axial direction parallel to the vertical axis H. The guide projection 88 extends, for example, parallel to the slot-shaped through-opening 78.

[0104] In this configuration, a particularly suitable linear guidance can be seen, namely a linear guidance in which the bearing surface 79 of the bearing body 171 is guided exactly parallel to the longitudinal axis L and exactly parallel to the vertical axis H by means of the linear guides 55 , 86 .

[0105] At the same time, the guide receptacle 87 and the guide projection 88 form an anti-twist contour 89 which prevents the bearing body 171 from twisting relative to the lateral contact body 141 .

[0106] Other embodiments can be provided in which the support body, for example the support body 270, can be held on the side support body in a movable manner, but cannot be separated. Figure 6 In the embodiment of the side contact body, the support body 270 is arranged to be displaceably supported along the adjustment axis V, that is, in the plane of the side contact surface 42. The support body 270 includes, for example, a support body, which is displaceably accommodated along the adjustment axis V in the support opening of the support member 85 at the side contact body 40.

[0107] It is possible that the support body 270 can be adjusted between a use position shown in solid lines, in which the support body extends in front of the side contact surface 42, and a non-use position shown in dashed lines, in which the support body is moved away from the side contact surface 42, for example, back behind the side contact surface, and thus does not cause interference when not in use. Thus, for example, the support element 85 simultaneously forms an adjustment mechanism 90 for adjusting the support body 20 between the non-use position and the use position.

[0108] The bearing body 270 can be fixedly secured on the lateral contact body 40 in a positionally fixed manner with respect to one or more longitudinal positions along the adjustment axis V, for example by means of clipping, latching (for example by means of a clamping screw or the like).

[0109] It is also possible, without any problems, to arrange the bearing body 270 in a fixed position on the lateral contact surface 42 , for example in the position shown by the solid line.

[0110] In order to clamp or hold the bearing body on the side contact body, a clamping part in the form of a clamping device 61 can also be provided, for example. Thus, for example, a clamping body can be provided which is movably mounted on the bearing body and is received on the side contact body in the form of a slot slide or a slot follower in a receiving slot, for example in the form of a guide slot 56 with its inwardly protruding projection 57. The clamping body can be brought into a clamping position, in which it holds the bearing body on the side contact body in a clamping fit by rearwardly grasping the projection of the receiving slot and clamping it, or into a disengaging position, in which the clamping body can be moved relative to the receiving slot and thus the bearing body can also be moved relative to the side contact body, by actuating a mechanical mechanism, for example a screw fastener, an actuating lever in the form of an actuating lever 64 or the like.

[0111] Such a receiving groove can be provided, for example, at the side contact surface. Here, the clamping body is then in a use position in which its bearing surface is opposite to the support surface of the machine base.

[0112] The receiving groove can also extend, for example, at the upper side 47 and expediently beyond the upper side 47 to the back side of the corresponding side contact body, so that the clamping body is guided in the receiving groove and the support body can be guided along the path of the receiving groove from the side contact surface to the upper side and / or back side of the side contact body, where it then assumes the non-use position. The clamping body is then designed, for example, as a transverse bolt or in any case a rod-shaped clamping body, which can also follow the path of the receiving groove over a curved section or an arc section or an angle section.

Claims

1. A machine tool, in particular a semi-stationary or mobile machine tool (10) and / or a sawing machine, for machining a workpiece (W) by means of a working tool (36), in particular a separating tool or a sawing tool, wherein: The machine tool (10) comprises a machine base (11) arranged to be placed on a foundation and a drive assembly (30) arranged thereon with a drive motor (32) and a tool holder (31) for the working tool (36), in particular for a separation tool, which can be driven by the drive motor (32), wherein the machine base (11) has a support surface (14, 17) for placing the workpiece (W) and at least one side support body (40, 41) with a side support surface (42), which is at an angle, in particular at a right angle, to the support surface (14, 17) and extends along a longitudinal axis (L), and wherein the machine tool (10) has a support surface (79) has at least one support body (70, 170), the support surface being fixable to the machine tool (10) by means of a retaining device (60) opposite to the support surface (14, 17), so that the workpiece (W) is supported between the support surface (14, 17) and the support surface (79) by means of the side support surface (42) for processing by the working tool (36), in particular for producing a crown-shaped cut, characterized in that the support body (70, 170) can be releasably fixed to the machine base (11) in at least two longitudinal positions (L1, L2) different from each other with respect to the longitudinal axis (L) by means of the retaining device (60).

2. The machine tool according to claim 1, characterized in that The at least one bearing body (70, 170) is arranged or can be arranged on the at least one side contact body (40, 41), in particular fixedly arranged or detachably fixed by means of a fixing mechanism (80) and / or movably supported.

3. The machine tool according to claim 1 or 2, characterized in that: The holding mechanism (60) is or has a holding mechanism (60) for holding the at least one side stop body on the machine base (11), so that the support body (70, 170) can be detachably fixed on the machine base (11) in at least two longitudinal positions (L1, L2) about the longitudinal axis (L) by adjusting the side stop body.

4. The machine tool according to any one of the preceding claims, characterized in that The holding mechanism (60) has a base side abutment surface (59), which is aligned with the side abutment surface (42) of the side abutment body (40, 41) when the at least one side abutment body (40, 41) is mounted on the holding mechanism (60).

5. The machine tool according to any one of the preceding claims, characterized in that The retaining mechanism (60) has a clamping device (61) for clamping the at least one side abutment body (40, 41) or the at least one support body (70, 170) relative to the machine base (11) and / or has a shape-fitting contour for retaining the at least one side abutment body (40, 41) or the at least one support body (70, 170) in a shape-fitting manner relative to the machine base (11).

6. The machine tool according to any one of the preceding claims, characterized in that The holding device (60) has a linear guide (55) for linearly adjusting the at least one side contact body (40, 41) and / or the at least one support body (70, 170) along the longitudinal axis (L).

7. The machine tool according to any one of the preceding claims, characterized in that The side abutment surface (42) of at least one side abutment body (40, 41) comprises a support section (44) and a tool section (43), wherein the side abutment surface (42) in the region of the support section (44) protrudes further in front of the bearing surface (14, 17) than in the region of the tool section (43), the tool section being arranged to provide a larger free space for the deposition tool.

8. The machine tool according to claim 7, characterized in that The at least one bearing body (70, 170) is arranged or can be arranged in the area of ​​the support section (44) and the at least one side abutment body (40, 41) can be adjusted between a first operating position and a second operating position with respect to the machine base (11) and / or with respect to the longitudinal axis (L), in which the tool section (43) is arranged closer to the working tool (36) than the support section (44), and in which the support section (44) is arranged closer to the working tool (36) than the tool section (43).

9. The machine tool according to any one of the preceding claims, characterized in that It has at least two side contact bodies (40, 41) which are arranged on mutually opposite sides of the working tool (36).

10. The machine tool according to any one of the preceding claims, characterized in that Each side contact body (40, 41) can be detachably fixed to the machine base (11) in at least two longitudinal positions (L1, L2) about the longitudinal axis (L) by means of a retaining mechanism (60).

11. The machine tool according to any one of the preceding claims, characterized in that The support surface (79) of at least one support body (70, 170) or the support body (70, 170) as a whole can be fixed in position by means of a fixing mechanism (80) on a part of the machine tool that is fixed in position relative to the support surface (14, 17), in particular the at least one side abutment body (40, 41), at at least one vertical spacing relative to the support surface (14, 17), preferably at least two vertical spacings that are different from each other, wherein the vertical spacings extend along a vertical axis (H) that extends transversely, in particular at a right angle, relative to the support surface (14, 17).

12. The machine tool according to claim 11, characterized in that The fixing mechanism (80) has a clamping device (80A) for clamping the at least one support body (70, 170) to a fixed component of the machine tool (10) and / or has a form-fitting contour for holding the at least one support body (70, 170) on the fixed component in a form-fitting manner, in particular in a rotationally fixed manner.

13. The machine tool according to claim 11 or 12, characterized in that The fixing device (80) has a bearing (85), in particular a linear bearing and / or a linear guide (86), for adjusting the at least one support body (70, 170) between at least two vertical spacings, in particular along an adjustment axis (V) oriented transversely, in particular at right angles, relative to the support surface (79), in which the support surface (79) has different spacings relative to the support surface (14, 17) for the workpiece (W).

14. The machine tool according to any one of claims 11 to 13, characterized in that The fixing means (80) comprises a bolt (81) which penetrates a support element recess (78A), in particular a longitudinal recess, of the support element.

15. The machine tool according to any one of claims 11 to 14, characterized in that The fixing mechanism (80) comprises a bolt body (81) which forms a component of a clamping device (80A) for clamping the support body (70, 170) to a part of the machine tool (10) which is fixed in position relative to the support surface (14, 17).

16. The machine tool according to any one of claims 11 to 15, characterized in that The fixing means (80) have anti-twist contours (89) which engage in one another in a form-fitting manner in order to hold the bearing surface (79) anti-twistably relative to the support surface (14, 17).

17. The machine tool according to claim 16, characterized in that The anti-twist contour (89) comprises or is formed by at least one guide projection (88) of the linear guide (86) extending along the adjustment axis (V), which guide projection engages in a guide receptacle (87) of the linear guide (86) extending along the adjustment axis (V).

18. The machine tool according to any one of the preceding claims, characterized in that The machine tool has an adjustment mechanism (90) for adjusting the at least one support body (70, 170) between a use position and a non-use position, in which the support surface (79) is arranged to support the workpiece (W) next to the side contact surface (42) and extends in front of the side contact surface (42), and in which the support surface (79) moves away from the side contact surface (42), in particular in such a way that the side contact surface (42) is ready to contact the workpiece (W) over its entire vertical extension.

19. The machine tool according to any one of the preceding claims, characterized in that The at least one side contact body (40, 41) and / or the at least one support body (70, 170) is plate-shaped or formed by a plate.

20. The machine tool according to any one of the preceding claims, characterized in that The machine base (11) has a swivel base (12), on which a swivel component (15) is supported so as to be swivelable about a swivel axis in order to change the relative position of a tool holder (31) for the working tool (36), in particular the separating tool, and a side contact surface (42) provided for placing a workpiece (W), wherein the swivel component (15) and / or the swivel base (12) advantageously provide a contact surface (14, 17) for the workpiece (W) and / or a supporting base for the drive assembly (30) and / or preferably a retaining device (60) for at least one side contact body (40, 41) is fixed in position relative to the swivel base (12) or is arranged on the swivel base (12).

21. The machine tool according to any one of the preceding claims, characterized in that The drive assembly (30) is supported linearly with respect to the machine base (11) at a linear guide (33) for performing longitudinal cutting with the aid of the working tool (36), in particular the separating tool, and / or is supported so as to be pivotable about an inclined pivot axis (SA) with respect to the machine base (11) and / or is supported so as to be pivotable with the aid of a depth pivot support (35) or a transverse pivot support toward and away from a workpiece support surface (14, 17) provided for placing a workpiece (W).

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