Clamping system

Abstract

A clamping system for clamping a workpiece onto a machine tool base or workpiece transport pallet (13) according to the present invention comprises at least one elongated base (11) and at least one clamping device (12), wherein the clamping device (12) may be positioned on the base (11) such that the base (11) can be at least partially received by a receiving groove (35) of the clamping device (12), and the clamping device (12) is movable by the base (11) along a longitudinal axis (L) defined by the base (11). The clamping device (12) can be clamped to the base (11) and / or the machine tool base or workpiece transport pallet (13) by a base clamping device (20).

Description

Technical Field

[0001] The present invention generally relates to a clamping system for clamping a workpiece to a machine base or a workpiece transfer pallet of a machine tool particularly suitable for machining the workpiece.

Background Art

[0002] Zero-point clamping systems are used in machine tools, specifically in machine tools for machining such as lathes and CNC milling machines, to clamp a workpiece onto a machine base or a workpiece transfer pallet using a clamping device such as a vise as quickly as possible with accurate positioning and repeatability accuracy. The zero-point clamping system can be used to shorten the switching time when machining the workpiece becomes impossible in the production process, thereby improving the production time of the machine tool. Zero-point clamping systems are known in many different variants from the prior art.

[0003] Patent Document 1 describes a zero-point clamping system including a clamping plate fixed to a machine tool. This clamping plate includes a number of mounting elements, which are distributed throughout the clamping plate and project from the clamping plate. The zero-point clamping system described here also includes a clamping device, which has a plurality of mounting recesses on its lower side, and the mounting elements can be inserted into these mounting recesses. This clamping device also includes a fixing mechanism, which is configured to reversibly and removably fix the mounting elements when the mounting elements are placed in the mounting recesses.

[0004] Patent Document 2 discloses another such zero-point clamping system. Here too, a plurality of mounting elements distributed on the clamping plate serve to enable the clamping device to be mounted at various positions on the clamping plate.

[0005] Patent Document 3 also describes a fixing device, which is configured to fasten a platform to a clamping plate, and a workpiece to be machined can be clamped on the upper side of this platform.

[0006] Patent Document 4 discloses a clamping system comprising a reference connection unit and a compensation connection unit, which are positioned between a workpiece and a clamping plate having a predetermined zero-point mounting portion, and which fix the workpiece to the clamping plate.

[0007] Further clamping systems can be found, for example, in Patent Documents 5, 6, and 7. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] European Patent No. 3756820 [Patent Document 2] German Patent Application Publication No. 102020105722 Specification [Patent Document 3] German Patent Application Publication No. 102016012169 [Patent Document 4] German Patent No. 102016122090 Specification [Patent Document 5] German Patent Application Publication No. 102021103114 [Patent Document 6] European Patent No. 3536456 [Patent Document 7] Swiss Patent Application Publication No. 713541 [Overview of the project] [Problems that the invention aims to solve]

[0009] In the clamping system described above, the positions in which the clamping device can be attached to the machine tool base are predetermined by the fixed arrangement of mounting points on the clamp plate, thereby limiting the positioning of the clamping device on the machine tool base.

[0010] Based on this, the object of the present invention is to provide an improved clamping system that enables flexible and accurate positioning of a clamping device, specifically on the machine stand of a machine tool or on the workpiece transport pallet of a machine tool. [Means for solving the problem]

[0011] This objective is solved by the clamping system for clamping a workpiece onto the machine tool base or workpiece transport pallet according to claim 1.

[0012] The clamping system according to the present invention comprises at least one elongated base and at least one clamping device. The elongated base can be fixed to a machine base or a workpiece transport pallet. The base further defines a longitudinal axis that specifically extends in a horizontal plane. The elongated base specifically extends along the longitudinal axis between two end regions.

[0013] A workpiece clamping device can be positioned above or is positioned above at least one clamping device, and a workpiece can be clamped by this workpiece clamping device. The workpiece clamping device may be a separate unit that can be connected to the clamping device. Alternatively, the workpiece clamping device may be part of the clamping device. The clamping device includes a receiving groove on its underside, together with the base clamping device. The receiving groove may be configured, for example, to have a trapezoidal cross-section in at least one region.

[0014] The receiving groove is configured to at least partially receive the substrate, thereby allowing the clamping device to be guided by the substrate and moved along its longitudinal axis, and to be (reversibly) clamped by the substrate clamping device to the substrate, and / or to the machine base or workpiece transport pallet.

[0015] A key feature of the clamping system according to the present invention is that the clamping device is movable along the longitudinal axis of the base and can be clamped at a desired position by the base clamping device, thereby allowing for fine adjustment of the position of the clamping device relative to the machine base or workpiece transport pallet. When adjusting the position of the clamping device, the position of the clamping device is not limited to a predetermined mounting position that may result from the relatively coarse grid of clamping plates known in the prior art. Specifically, when clamping multiple workpieces of different dimensions, the position of the clamping device on the machine base or workpiece transport pallet can be adjusted to match the dimensions of the workpieces. Specifically, this avoids fixing the position of the clamping device in a position that is unfavorable for clamping workpieces due to the coarse grid, where, for example, the workpiece can only be clamped asymmetrically by the workpiece clamping device. The ability to flexibly position the clamping device together with the workpiece clamping device on the machine base or workpiece transport pallet prevents the clamping force from being unfavorably distributed during workpiece clamping.

[0016] Preferably, the base has two lateral relief surfaces arranged parallel to each other, at least one of the lateral relief surfaces has a first side contour, and the clamp contour of the base clamping device can be connected to this first side contour by a shape-fitting method and / or a press-fitting method. By connecting the clamp contour to the first side contour by a shape-fitting method and / or a press-fitting method, it is possible to form a play-free connection between the base and the clamping device. Specifically, the connection between the clamping device and the base is reversible. Therefore, the clamping device can be securely and accurately fixed to the base on the machine base and / or workpiece transport pallet at the desired clamping position.

[0017] Specifically, a portion of the mounting groove has a trapezoidal cross-section, preferably a dovetail shape. The corresponding portion of the base preferably has a cross-section complementary to that of the mounting groove. Thus, in the unclamped state, the base can form a linear guide for the clamping device, thereby allowing the clamping device to be mounted movably along its longitudinal axis. However, in the clamped state, the clamping device is immovably held in the clamped position on the machine base and / or workpiece transport pallet.

[0018] Preferably, the first side profile has at least one groove having an inclined interface surface inclined about the longitudinal axis with respect to the lateral relief surface. Specifically, the inclined interface surface is inclined with respect to the lateral relief surface at a predetermined first angle. The first angle may be between 20° and 70°, preferably between 30° and 60°, and particularly preferably between 40° and 50°. The first angle may be at least approximately 45°. The inclination of the groove interface surface allows the lower side of the clamping device to be pressed against / clamped against the upper side of the machine base and / or workpiece transport pallet when the clamping device is clamped, thereby ensuring that the clamping device is securely and accurately fixed to the machine base and / or workpiece transport pallet. When the clamping device is clamped, it is clamped downward to the machine base and / or workpiece transport pallet, thereby forming a friction locking connection between the clamping device and the base. The longitudinal axis defined by the base is specifically a horizontal line extending in the longitudinal direction of the base.

[0019] The first side profile preferably comprises a toothed portion having a plurality of teeth, which preferably extend along the lateral relief surface of the base. Specifically, the toothed portion forms a (fine) grid having a plurality of defined clamping positions along the longitudinal axis, thereby defining a plurality of clamping positions for the clamping device. The teeth of the toothed portion are preferably equidistant from one another. The distance between the clamping positions defined by the plurality of teeth may be in millimeters, for example, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, etc.

[0020] Preferably, each tooth is defined by at least two tooth surfaces that are inclined around the longitudinal axis and around the short axis with respect to the flank face, so that when the clamping device is clamped to the machine base or the workpiece transfer pallet, it is centered at a predetermined clamping position (in the longitudinal axis direction) by the tooth portion. The tooth surfaces are preferably configured to be at least substantially flat. Specifically, the tooth surfaces are inclined at a predetermined second angle with respect to the flank face. The second angle can be between 20° and 70°, preferably between 30° and 60°, and particularly preferably between 40° and 50°. The first angle can be at least substantially 45 degrees. Alternatively, the tooth surfaces can be at least substantially convex. During clamping, the clamping device is clamped downward with respect to the machine base or the workpiece transfer pallet, thereby forming a friction locking connection between the clamping device and the base body.

[0021] The base clamping device comprises at least one base clamping element. The base clamping element is preferably in the shape of a pin, and the clamping contour of the base clamping device is formed in the tip region of the base clamping element.

[0022] Preferably, the base clamping element comprises a clamping tooth portion, which has at least one clamping tooth adapted to the shape of the tooth portion, and this clamping tooth engages with the tooth portion of the fixed contour when the clamping device is clamped.

[0023] The clamping tooth enables the clamping device to be positioned at an individual clamping position along the base body. The tooth surface functions as a (lateral) guide and at the same time also functions as a clamping surface for the base clamping element.

[0024] Preferably, the base clamping device comprises a clamping mechanism configured to move the base clamping element in a direction transverse to the longitudinal axis (along the short axis).

[0025] The flank face of the base body has an asymmetric cross-section, which enables the lateral position of the clamping device 12 to be accurately determined during clamping.

[0026] Preferably, the first side profile is formed on only one lateral relief surface, and the second side profile is formed on the other lateral relief surface.

[0027] Specifically, the receiving groove on the side where the second lateral contour is located is configured to be complementary to the second lateral contour of the substrate.

[0028] Specifically, a (visible) marking is provided on the upper side of the base, which provides the user with visual or tactile feedback regarding the current position of the clamping device, thereby enabling easy adjustment of the clamping position of the clamping device.

[0029] In further embodiments, the clamping system comprises multiple clamping devices of the type described above, which can be moved along the longitudinal axis of a base by a base body and can be clamped to the base body and / or to a machine back or workpiece transport pallet by base clamping devices of these clamping devices. This makes it possible to precisely position even workpieces of larger dimensions on the machine back of a machine tool using multiple vises. The multiple clamping devices may be configured differently or identically, for example, with a workpiece clamping device on the upper side, or with a coupling device for connecting workpiece clamping devices on the upper side.

[0030] Specifically, the clamping system comprises multiple substrates of the type described above, which can be mounted adjacent to a machine base or workpiece transport pallet so that their longitudinal axes are aligned in a straight line, thereby allowing the clamping device, or if the clamping system comprises multiple clamping devices, these multiple clamping devices, to move over long distances along a common longitudinal axis. This allows the clamping system to flexibly adapt to the size of the workpiece. Preferably, the cross-sections of the multiple substrates are at least substantially identical, and preferably, each has a first side profile on one lateral relief surface and a second side profile on the other lateral relief surface, as described above. The multiple substrates can be arranged and mounted on a machine base or workpiece transport pallet so that their lateral relief surfaces are aligned in a straight line. In particular, the first and second side profile are preferably continuous across the lateral relief surfaces of the substrates, at least substantially without transitions and / or gaps. [Brief explanation of the drawing]

[0031] Further details of advantageous further developments or details of the present invention will become apparent from the drawings, specification and dependent claims. These include:

[0032] [Figure 1] This is a schematic perspective view of an example of a clamping system according to the present invention. [Figure 2] Figure 1 is a schematic diagram of the base without the clamping device. [Figure 3a] This is a perspective view of an example of a clamping device. [Figure 3b] Figure 3a is a side view of an example of a clamping device. [Figure 4a] A perspective view of another example of a clamping device. [Figure 4b] Figure 3b is a side view of an example of a clamping device. [Figure 5] This is a cross-sectional view of the substrate. [Figure 6] Figures 2 and 5 show detailed side views of the substrate at the lateral relief surface. [Figure 7]This is a cross-sectional view of the clamping device without its base. [Figure 8] This is a side view of the clamping system. [Figure 9] This is a cross-sectional view along the cutting surface CC. [Figure 10] This is a detailed view of the region enclosed by a circle and indicated by reference numeral Z in Figure 9. [Figure 11] This is a longitudinal cross-section along the cross-section BB. [Figure 12] This is a detailed view of the base clamp element. [Figure 13] This is a longitudinal cross-section along section AA. [Modes for carrying out the invention]

[0033] Figure 1 shows a schematic perspective view of one embodiment of a clamping system 10 according to the present invention, which comprises a long base 11 and at least one clamping device 12. The clamping system 10 is used to clamp a workpiece to the machine base or workpiece transport plate 13 of a machine tool, which is configured in particular to machine the workpiece by cutting. The machine tool may be, for example, a CNC milling machine or a turning machine.

[0034] The elongated base 11 preferably has at least a substantially flat surface 15 on its upper side 14. The elongated base 11 can be fixedly attached to the machine base 13.

[0035] In the example shown in Figure 1, one mounting hole 16 is visible, while the other mounting hole 16 is covered by the clamping device 12.

[0036] Figure 2 shows the base 11 of Figure 1 without the clamping device 12, which allows the other mounting hole 16 to be seen. The mounting hole 16 allows the elongated base 11 to be fixed onto the machine base 13. Multiple markings 24 are also positioned at predetermined locations on the surface 15 of the upper 14 of the base 11, equidistant from each other. The markings 24 shown in Figures 1 and 2 are visible indentations. Furthermore, the clamping device 12 may be equipped with a spring load pin in the receiving groove 35, which provides perceptible resistance as the pin is pressed against the indentation when the clamping device 12 is moved.

[0037] The elongated base 11 defines a longitudinal axis L. The longitudinal axis L is defined to extend along the principal direction of the elongated base 11.

[0038] At least one clamping device 12 has an upper section 17, and the workpiece clamping device 45 is reversibly connectable to or formed on this upper section 17. The workpiece clamping device 45 is not shown in Figure 1.

[0039] Figure 3a shows the clamping device 12 with a workpiece clamping device 45 connected to its upper side 17. The workpiece clamping device 45 comprises two clamping jaws 46, at least one of which is movable toward or toward the other (along the short axis Q). In this embodiment, the clamping jaws 46 are arranged to extend parallel to the long axis L. Figure 4a shows a side view of the clamping system 10 shown in Figure 3a.

[0040] Figure 3b shows another example of the clamping device 12. In this embodiment, the clamping device 12 and the workpiece clamping device 45 form a single unit. The workpiece clamping device 45 is formed on the upper side 17 of the clamping device 12. In this embodiment as well, the workpiece clamping device 45 has two clamping jaws 46, and at least one of these clamping jaws 46 is movable toward or away from the other (along the short axis Q). In this embodiment as well, the clamping jaws 46 are arranged to extend parallel to the long axis L. Figure 4b shows a side view of the clamping system 10 shown in Figure 3b.

[0041] In Figure 1, the clamping device 12 is provided with a receiving groove 35 formed on its lower side 18, and a portion of the base body 11 is housed within this receiving groove 35. The receiving groove 35 forms a recess for the base body 11 and is located, for example, in the center of the lower side 18 of the clamping device 12. The base clamping device 20 is housed in the receiving groove 35, and the base clamping device 20 will be described in more detail later, with particular reference to Figures 7 to 11.

[0042] The clamping device 12 may be positioned on the base 11 such that the base 11 is at least partially received by the receiving groove 35, and the clamping device 12 can be moved along the longitudinal axis L by the base 11.

[0043] The base 11 has two relief surfaces 21 and 22 extending parallel to each other on both sides, and in Figure 1, only the relief surface 21 is visible due to the viewpoint.

[0044] In the example shown in Figure 1, both the lateral relief surfaces 21 and 22 of the base body 11 have asymmetrical cross-sections. A first side profile 23 is formed on one of the lateral relief surfaces 21, and this first side profile can be connected to the corresponding clamp profile 32 of the base body clamping device 20 in a shape-fitting manner. In contrast, a second side profile 25 is formed on the other lateral relief surface 22, and this second side profile 25 functions as a contact portion for the base body clamping device 20 during clamping.

[0045] The lateral relief surfaces 21 and 22 of the base body 11, together with the relief surfaces of the receiving groove 35, form a linear guide for the clamping device 12 in the direction of the longitudinal axis L. The base body 11 can be clamped by the base body clamping device 20 when the base body 11 is moved, for example, along the longitudinal axis L to a desired clamping position.

[0046] Figure 5 shows an exemplary cross-sectional view of the base body 11. The upper side 14 of the base body 11 has a flat surface 15.

[0047] The example shown in Figure 5 is an asymmetrically configured embodiment of the base body 11. A first side profile 23 is formed on one relief surface 21, and a second side profile 25 is formed on the other relief surface 22. The first side profile 23 includes a groove 26, along with an adjacent inclined surface 27. The inclined surface 27 is inclined with respect to the surface 15 around the longitudinal axis L. The inclined surface 27 is also provided with a toothed portion 28 having a plurality of teeth 29.

[0048] The second side profile 25 also includes an inclined opposing surface 27' that is inclined with respect to the surface 15 around the longitudinal axis L. The second side profile 25 does not have a groove 26 compared to the fixed profile 23. The inclination angles of the inclined surface 27 and the inclined surface 27' may be different from each other.

[0049] Figure 6 shows a detailed side view of the base body 11 shown in Figures 2 to 5, as seen from the lateral relief surface 21. The first side contour 23 includes a toothed portion 28 with a plurality of teeth 29, which form a grid R with a plurality of predetermined clamping positions P along the longitudinal axis L. The teeth 29 of the toothed portion 28 are arranged equidistant from each other. Each tooth 29 has two (lateral) tooth surfaces 30. The tooth surfaces 30 are inclined with respect to the surface 15 around the longitudinal axis L and are inclined toward each other.

[0050] Figure 7 shows a cross-sectional view of the clamping device 12 without the base 11. The clamping device 12 has a receiving groove 35 on its lower side 18, which is configured to receive at least a portion of the base 11. The clamping device 12 includes a base clamping device 20 having a base clamping element 31, which can be moved at least partially into the receiving groove 35. The base clamping device 20 also includes a clamping mechanism 36, which in the example shown in Figure 7 is implemented by a screw 36 that can be screwed into and unscrewed into a hole. The base clamping element 31 is pin-shaped. Preferably, a clamping contour 32 with inclined clamping teeth 33 is formed in the tip region 37 of the base clamping element 31. The clamping teeth 33 are matched to the teeth 28 of the base 11. The base clamping element 31 also includes a guide groove 39. Guide pins are positioned in guide grooves 39, which form a straight guide for the base clamp element 31 and prevent rotation of the base clamp element 31. This ensures that the clamp contour 32 is always kept in line with the first side contour 23, thereby allowing the clamp teeth 33 to engage with the teeth 28.

[0051] On the opposite side of the receiving groove 35 from the base clamping device 20, an opposing surface 38 is formed, and this opposing surface 38 is also preferably inclined, so that when the clamping device 12 is clamped to the base 11, the other relief surface 22 is pressed against this opposing surface 38.

[0052] Figure 7 also shows a cross-section of the connecting device 40, which allows the work clamping device 45 (not shown) to be connected to the clamping device 12. The connecting device 40 will be described in more detail later with reference to Figure 13.

[0053] Figure 8 shows a side view of an example of the clamping system 10, in which the base 11 is already fixed to the machine tool base or workpiece transport pallet 13. The clamping device 12 is positioned on the base 11 and can be moved along the arrows shown in the figure, i.e., along the longitudinal axis L.

[0054] Figure 9 shows a cross-sectional view along the cross-section CC. Figure 11 shows a longitudinal cross-sectional view along the cross-section BB, and Figure 13 shows a longitudinal cross-sectional view along the cross-section AA.

[0055] Figure 9 is a cross-sectional view of the clamping device 12 with the base body 11 removed from the receiving groove 35 and clamped. The base clamping element 31 of the base clamping device 20 is clamped to the first side contour 23 of the base body 11 such that the clamping teeth 33 are pressed against the inclined surface 27 of the base body 11. The clamping teeth 33 are in contact with the inclined surface 27. Due to the inclination of the clamping teeth 33 and the inclined surface 27, the base clamping element 31 is pressed against the base body 11 like a wedge, thereby pressing the opposing surface 38 on the opposite side of the receiving groove 35 against the inclined surface 27' of the base body 11, and pressing the clamping device 12 downward against the machine base or workpiece transport pallet 13.

[0056] Figure 10 shows a detailed view of the area enclosed by a circle in Figure 7 and indicated by reference number Z.

[0057] Figure 11 shows a longitudinal cross-sectional view along section BB in the clamped state. The clamping teeth 33 of the base clamping element 31 are matched with the teeth 28 of the base 11. In Figure 11, the base clamping element 31 has multiple teeth in its tip region 37, which securely engage with the teeth 28 of the base 11.

[0058] Figure 12 shows a detailed view of a base clamp element 31 having a clamp contour 32. The clamp contour 32 is formed in the tip region 37 of the base clamp element 31 by clamp teeth 33 with an inclined tooth shape. When the clamping device 12 is clamped to the base 11, these teeth can engage with the teeth 28 of the base 11.

[0059] Figure 13 shows a longitudinal section view along section AA. Figure 13 shows a coupling device 40, which allows a work clamp device 45 to be detachably attached to the upper side 17 of the clamp device 12. The coupling device 40 has a plurality of coupling holes 41 through which coupling pins 46 attached to the lower side of the work clamp device 45 can be inserted from above. The coupling device 40 can be used to detachably clamp the coupling pins 46 inserted into the coupling holes. For this purpose, the coupling device 40 has a plurality of coupling pins 42 that are mounted to be movable (along the short axis Q). The coupling pins 42 are mounted such that each of these coupling pins 42 can be inserted laterally into the coupling hole 41 by operating the coupling device 40.

[0060] The coupling device 40 includes at least one transmission pin 43, which can be moved deep into or out of the borehole by a screw 44. The movement of the transmission pin 43 is transmitted to a coupling pin 42, which can be inserted into or withdrawn from each coupling hole 41 by screwing in or unscrewing the screw 44. The two coupling pins 42 are always spring-mounted to each other by a spring element 47.

[0061] The clamp system 10 according to the present invention described above operates as follows.

[0062] To attach the clamping device 12 to the machine base 13, first, the base body 11 is fixed to the machine base 13. The base body 11 defines a longitudinal axis L, along which the clamping device 12 can move. The clamping device 12 is positioned on the base body 11 such that at least a portion of the base body 11 is housed in the receiving groove 35 of the clamping device 12. This allows the clamping device 12 to move to a desired clamping position P. When the clamping device 12 is in the desired clamping position P, it can be clamped in place by the base clamping device 20. The base clamping element 31 has a clamping contour 33 with teeth, which are adapted to engage with the inclined surface 27 of the base body 11, which also has teeth 28, during clamping. The inclined surface 27 is angled such that a wedge effect occurs when the base clamping element 31 is clamped, so that the lower side 18 of the clamping device 12 is clamped downward against the upper side of the machine base or work transport pallet 13, thereby fixing the clamping device 12 to the upper side of the machine base or work transport pallet 13 in a detachable manner.

[0063] A clamping system for clamping a workpiece to a machine tool base or workpiece transport pallet 13 according to the present invention comprises at least one elongated base 11 and at least one clamping device 12, wherein the clamping device 12 may be positioned on the base 11 such that the base 11 can be at least partially received by a receiving groove 35 of the clamping device 12. The clamping device 12 is mounted by the base 11 so as to be movable along a longitudinal axis L defined by the base 11. Furthermore, the clamping device 12 can be clamped to the base 11 and / or the machine tool base or workpiece transport pallet 13 by a base clamping device 20.

[0064] (Note) (Note 1) A clamping system (10) for clamping a workpiece to a machine tool or workpiece transport pallet (13) of a machine tool, which is configured to machine a workpiece by cutting, At least one elongated base (11) that can be fixedly attached to the machine base or the work transport pallet (13), wherein the base (11) comprises at least one elongated base (11) that defines a longitudinal axis (L), At least one clamping device (12), wherein a workpiece clamping device can be positioned or is positioned on the upper side (17) of the clamping device (12), and the workpiece can be clamped by the workpiece clamping device, and a receiving groove (35) is positioned on the lower side (18) of the clamping device (12) together with a base clamping device (20), Equipped with, The receiving groove (35) is configured to receive at least a portion of the base (11), the clamping device (12) is movable so as to be guided along the longitudinal axis (L) by the base (11), and can be clamped to the base (11) and / or the machine base or the work transport pallet (13) by the base clamping device (20). Clamping system (10).

[0065] (Note 2) The base body (11) comprises two lateral relief surfaces (21, 22) arranged parallel to each other, at least one of the lateral relief surfaces (21, 22) comprises a first side profile (23), and the clamp profile (32) of the base body clamping device (20) can be connected by a shape-fitting method and / or a press-fit method. The clamping system (10) as described in Appendix 1, characterized by the features described herein.

[0066] (Note 3) The receiving groove (35) has a trapezoidal cross-section, and the corresponding portion of the base (11) has a cross-section complementary to the trapezoidal portion. The clamp system (10) according to Appendix 1 or 2, characterized by the above.

[0067] (Note 4) The first side profile (23) has at least one groove (26) comprising an inclined interface surface (27) positioned at an angle with respect to the lateral relief surface (21) around the longitudinal axis (L), The clamping system (10) according to Appendix 2 or 3, characterized by the features described herein.

[0068] (Note 5) The first side contour (23) comprises a toothed portion (28) having a plurality of teeth (29), the plurality of teeth (29) forming a grid (R) having a plurality of defined clamping positions (P) along the longitudinal axis (L). A clamping system (10) as described in any one of appendices 2 to 4, characterized by the above.

[0069] (Note 6) Each of the multiple teeth (29) of the tooth portion (28) has at least two tooth surfaces (30) that are inclined around the longitudinal axis (L) and around the short axis (Q) with respect to the lateral relief surface (21). The clamping system (10) described in Appendix 5, characterized by the above.

[0070] (Note 7) The base clamping device (20) comprises at least one base clamping element (31), A clamping system (10) as described in any one of the appendices 1 to 6, characterized by the above.

[0071] (Note 8) The base clamp element (31) is pin-shaped, and the clamp contour (25) of the base clamp device (20) is formed in the tip region (37) of the base clamp element (31). The clamping system (10) described in Appendix 7, characterized by the above.

[0072] (Note 9) The base clamp element (31) further comprises a clamp tooth portion (33) having at least one clamp tooth (34) adapted to the shape of the tooth portion (28), and the clamp device (12) engages with the tooth portion (28) of the fixed contour (23). The clamping system (10) according to appendix 7 or 8, characterized by the above.

[0073] (Note 10) The base clamping device (20) includes a clamping mechanism (36) configured to move the base clamping element (31) laterally with respect to the longitudinal axis (L). A clamping system (10) as described in any one of the appendices 1 to 9, characterized by the above.

[0074] (Note 11) Both lateral relief surfaces (21, 22) of the substrate (11) have asymmetrical cross-sections. A clamping system (10) as described in any one of appendices 2 to 10, characterized by the above.

[0075] (Note 12) Only one of the lateral relief surfaces (21) has the first side contour (23), and the other lateral relief surface (22) has a second side contour (25) that is different from the first side contour. A clamping system (10) as described in any one of appendices 2 to 11, characterized by the above.

[0076] (Note 13) The receiving groove (35) on the side where the second side contour (25) is located is configured to be complementary to the second side contour (25) of the base body (11). The clamping system (10) described in Appendix 12, characterized by the features described herein.

[0077] (Note 14) A marking is provided on the upper side (14) of the base (11), and the marking provides the user with visual or tactile feedback regarding the current clamping position (P) of the clamping device (12). A clamping system (10) as described in any one of the appendices 1 to 13, characterized by the above.

[0078] (Note 15) The clamping system (10) comprises a plurality of, preferably identical, clamping devices (12), the clamping devices (12) being guided by the base (11) so as to be movable along the longitudinal axis (L), and being clamped by the base clamping device (20) to the base (11) and / or the machine base or the workpiece transport pallet (13). A clamping system (10) as described in any one of the appendices 1 to 14, characterized by the above.

[0079] (Note 16) The clamping system (10) comprises a plurality of bases (11), and the plurality of bases (11) can be attached to the machine base or the work transport pallet (13) such that the longitudinal axes (L) of the plurality of bases (11) are aligned in a straight line. A clamping system (10) as described in any one of the appendices 1 to 15, characterized by the above. [Explanation of Symbols]

[0080] 10 Clamping Systems 11 Base 12 Clamping device 13 machines 14 Upper side of the base 15 First support surface 16 mounting holes 17 Upper side of clamping device 18 Lower side of clamping device 19 Second support surface 20 Base clamping device 21 One side (side escape) 22 The other (lateral escape) surface 23. First lateral contour 24 Marking 25. Second lateral contour 26 Groove 27 Slope 27' Inclined opposing surface 28 Interlock 29 teeth of a gear 30 Tooth surface 31 Base clamp element 32 Clamp contour 33 Multiple clamping teeth 34 clamp teeth 35 Mounting groove 36 Clamping mechanism 37 Tip area 38 Opposing clamping surfaces 39 Guide groove 40 Coupling device 41 connecting holes 42 connecting pins 43 transmission pins 44 screws 45 Workpiece clamping device 46 connecting bolts 47 Spring element L Long axis P clamp position R Grid Q short axis AA, BB cross section CC

Claims

1. A clamping system (10) for clamping a workpiece to a machine tool or workpiece transport pallet (13) of a machine tool, which is configured to machine a workpiece by cutting, At least one elongated base (11) that can be fixedly attached to the machine base or the work transport pallet (13), wherein the base (11) comprises at least one elongated base (11) that defines a longitudinal axis (L), At least one clamping device (12), wherein a workpiece clamping device can be positioned or is positioned on the upper side (17) of the clamping device (12), and the workpiece can be clamped by the workpiece clamping device, and a receiving groove (35) is positioned on the lower side (18) of the clamping device (12) together with a base clamping device (20), Equipped with, The receiving groove (35) is configured to receive at least a portion of the base (11), the clamping device (12) is movable so as to be guided along the longitudinal axis (L) by the base (11), and can be clamped to the base (11) and / or the machine base or the work transport pallet (13) by the base clamping device (20). Clamping system (10).

2. The base body (11) comprises two lateral relief surfaces (21, 22) arranged parallel to each other, at least one of the lateral relief surfaces (21, 22) comprises a first side contour (23), and the clamp contour (32) of the base body clamping device (20) can be connected by a shape-fitting method and / or a press-fit method. The clamping system (10) according to claim 1.

3. The receiving groove (35) has a trapezoidal cross-section, and the corresponding portion of the base (11) has a cross-section complementary to the trapezoidal portion. The clamping system (10) according to claim 1 or 2, characterized in that it is the same as described in claim 1 or 2.

4. The first side profile (23) has at least one groove (26) comprising an inclined interface surface (27) positioned at an angle with respect to the lateral relief surface (21) around the longitudinal axis (L), The clamping system (10) according to claim 2 or 3, characterized in that it is the same as described in claim 2 or 3.

5. The first side contour (23) comprises a toothed portion (28) having a plurality of teeth (29), and the plurality of teeth (29) form a grid (R) having a plurality of defined clamping positions (P) along the longitudinal axis (L). The clamping system (10) according to any one of claims 2 to 4.

6. Each of the multiple teeth (29) of the tooth portion (28) has at least two tooth surfaces (30) that are inclined around the longitudinal axis (L) and around the short axis (Q) with respect to the lateral relief surface (21). The clamping system (10) according to claim 5.

7. The base clamping device (20) comprises at least one base clamping element (31). A clamping system (10) according to any one of claims 1 to 6, characterized by the features described herein.

8. The base clamp element (31) is pin-shaped, and the clamp contour (25) of the base clamp device (20) is formed in the tip region (37) of the base clamp element (31). The clamping system (10) according to feature 7.

9. The base clamping element (31) further comprises a clamping tooth portion (33) having at least one clamping tooth (34) adapted to the shape of the tooth portion (28), and the clamping device (12) engages with the tooth portion (28) of the fixed contour (23). The clamping system (10) according to claim 7 or 8.

10. The base clamping device (20) includes a clamping mechanism (36) configured to move the base clamping element (31) laterally with respect to the longitudinal axis (L). The clamping system (10) according to any one of claims 1 to 9, characterized by the features described herein.

11. Both lateral relief surfaces (21, 22) of the substrate (11) have asymmetrical cross-sections. The clamping system (10) according to any one of claims 2 to 10, characterized by the features described herein.

12. Only one of the lateral relief surfaces (21) has the first side contour (23), and the other lateral relief surface (22) has a second side contour (25) that is different from the first side contour. The clamping system (10) according to any one of claims 2 to 11, characterized by the features described herein.

13. The receiving groove (35) on the side where the second side contour (25) is located is configured to be complementary to the second side contour (25) of the base body (11). The clamping system (10) according to the feature described in 12.

14. A marking is provided on the upper side (14) of the base (11), and the marking provides the user with visual or tactile feedback regarding the current clamping position (P) of the clamping device (12). The clamping system (10) according to any one of claims 1 to 13, characterized by the features described herein.

15. The clamping system (10) comprises a plurality of, preferably identical, clamping devices (12), the clamping devices (12) being guided by the base (11) so as to be movable along the longitudinal axis (L), and being clamped by the base clamping device (20) to the base (11) and / or the machine base or the workpiece transport pallet (13). The clamping system (10) according to any one of claims 1 to 14.

16. The clamping system (10) comprises a plurality of bases (11), and the plurality of bases (11) can be attached to the machine base or the work transport pallet (13) such that the longitudinal axes (L) of the plurality of bases (11) are aligned in a straight line. The clamping system (10) according to any one of claims 1 to 15, characterized by the features described herein.

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