Profile element for a welding and clamping table system

Abstract

The profile element (1) should be connectable to other accessories of the welding and clamping table system with a double clamping bolt and should be directly usable with screw clamps of the welding and clamping table system. For this purpose, the walls (11, 12) of system bores (5, 7) in a first profile wall section (4) and in a second profile wall section (6) are cylindrical, and a central strut (13) running parallel to the first profile wall section (4) is provided with at least one system bore (14) of the welding and clamping table system, wherein the distance between the surfaces of the first profile wall section (4) and the central strut (13) facing away from one another corresponds to the standard material thickness of the welding and clamping table system, the system bore (14) is aligned with the system bores (5, 7) in the first profile wall section (4) and in the second profile wall section (6), and the system bore (14) has a chamfer (15) of the welding and clamping table system on the side facing away from the first profile wall section (4).

Description

[0001] The invention relates to a profile element for a welding and clamping table system according to the preamble of claim 1.

[0002] Welding and clamping table systems have been around for a long time and are used, among other things, to assemble and secure fixtures to be welded. However, there are also a variety of other applications for welding and clamping table systems, for example, for measuring fixtures or similar.

[0003] Welding and clamping tables are known, for example, from EP 0 541 904 A1 or DE 91 09 540 U1. Welding and clamping tables have a large number of system bores arranged in a uniform grid pattern on their surface and, if necessary, also on the side panels of the tabletop. The system bores are designed as round through-holes, which may be provided with a chamfer, i.e., a truncated cone-shaped counterbore.

[0004] In addition, the welding and clamping table systems feature a wide range of accessories that enable the clamping of objects. For example, they generally feature angled supports, which also have system bores or slotted openings. These supports can be connected to one another or to a table using clamping devices, such as clamping bolts, which are inserted into the parts to be joined from one side and supported on the other side. One type of clamping bolt features balls that can be moved out of the bolt housing, as described, for example, in DE 199 17 209 A1. The clamping bolts known from DE 10 2014 011 309 A1 feature tilting elements as clamping devices that can be tilted out of the bolt body against a restoring force. These clamping bolts are particularly advantageous for preventing material deformation at the system bores due to the clamping forces.Both types of clamping bolts require a chamfer on the lower side so that the clamping devices, i.e. either balls or tilting elements, can clamp and center in the chamfer.

[0005] In addition, screw clamps are used as clamping devices in connection with welding and clamping table systems, which also serve to clamp objects. Such screw clamps are described, for example, in DE 202 04 107 U1 or DE 202 12 731 U1 as a screw clamp with a base piece that can be inserted into a system bore and a collar that extends beyond the base piece. Screw clamps with a round tube that can be inserted into a system bore up to an adjustable adjusting ring are known from DE 10 2009 022 013 A1 or DE 20 2013 007 011 U1.

[0006] Other accessories include various stops with system holes and / or slotted holes and prisms. Workbenches with a tabletop with system holes are also used in welding and clamping table systems.

[0007] DE 10 2020 005 960 A1 discloses that welding and clamping tables can be provided with a hexagonal groove in addition to the system holes in the tabletop. It also describes corresponding T-nuts with a hexagonal cross-section.

[0008] Welding and clamping table systems come in various bore diameters, such as 28 mm, 22 mm, and 16 mm, which define a system. Within a system, all tool parts and sets can be used on all table series. For cross-system work, a comprehensive range of connecting elements is available.

[0009] Each system bore diameter has a specific standard material thickness, i.e. a specific thickness of the table tops, the legs of the angle supports and the stops. For a system bore diameter of 28 mm, the standard material thickness can be 25 mm, for example, 18 mm for a diameter of 22 mm, and 12 mm for a diameter of 16 mm. The corresponding clamping bolts are aligned to this standard material thickness, i.e. clamping bolts are provided with which two parts with a standard material thickness can be joined, for example a table top and one leg of an angle. These clamping bolts are called double clamping bolts and are the usual standard clamping bolt. There are also clamping bolts with which three parts with a standard material thickness can be joined, so-called triple clamping bolts.

[0010] The extensive range of accessories for welding and clamping table systems also includes aluminum profiles that can be used as table extensions or as vertical clamping surfaces. These can be manufactured using an extrusion process and then provided with system bores and / or slotted holes. The aluminum profiles are equipped with internal support struts and, for stability reasons, have a height that is twice the standard material thickness. This requires the use of a triple clamping bolt to connect the aluminum profiles to other elements of the welding and clamping table system. The system bores on the outer surfaces of the aluminum profile are chamfered for the clamping bolts.However, this means that screw clamps cannot be used directly with the existing aluminum profiles, as the clamping forces generated by a screw clamp inserted into the system bore of the aluminum profile would damage the system bore. Instead, various types of adapters for screw clamps are available. The adapter can be clamped to the aluminum profile with a triple clamping bolt, and the screw clamps can then be inserted into one of the adapter's bores. However, the need to use triple clamping bolts and adapters for screw clamps results in unwanted additional costs.

[0011] The invention is therefore based on the problem of specifying a profile element for a welding and clamping table system which can be connected to other accessories of the welding and clamping table system by means of a double clamping bolt and which can be used directly with screw clamps of the welding and clamping table system.

[0012] This object is achieved by the features of the independent claim. Advantageous embodiments of the invention emerge from the dependent claims.

[0013] According to the invention, a profile element for a welding and clamping table system is provided with at least one first profile wall and at least one second profile wall, wherein - the first profile wall has at least one first profile wall section with at least one system bore of the welding and clamping table system, - the second profile wall has at least one second profile wall section with at least one system bore of the welding and clamping table system, - the first profile wall section and the second profile wall section run parallel to each other and have a distance from each other that is greater than the standard material thickness of the welding and clamping table system, and - the system holes in the first profile wall section and in the second profile wall section are aligned with each other. It is further provided that - the walls of the system bores in the first profile wall section and in the second profile wall section are cylindrical, - a central strut running parallel to the first profile wall section is provided with at least one system bore of the welding and clamping table system, wherein the distance between the opposite surfaces of the first profile wall section and the central strut corresponds to the standard material thickness of the welding and clamping table system, the system bore is aligned with the system bores in the first profile wall section and in the second profile wall section, and the system bore has a chamfer of the welding and clamping table system on the side facing away from the first profile wall section. The remaining design of the profile element can be determined depending on the stability requirements and the desired use of the profile element within the welding and clamping table system.

[0014] The distance between the first profile wall section and the second profile wall section, which is greater than the standard material thickness of the welding and clamping table system, ensures that a longer clamping height is available in the profile element for a screw clamp, which is necessary for secure clamping. At the same time, the cylindrical design of the walls of the system bores in the first profile wall section and the second profile wall section ensures that, thanks to a high cylindrical portion in the system bores, forces occurring during clamping can be absorbed without fear of damage to the system bores.

[0015] The center strut, which runs parallel to the first profile wall section and has at least one system bore of the welding and clamping table system, enables the use of a double clamping bolt to connect the profile element to another accessory of the welding and clamping table system with a standard material thickness, such as the leg of an angle bracket or a stop. For this purpose, the distance between the opposing surfaces of the first profile wall section and the center strut corresponds to the standard material thickness of the welding and clamping table system. The system bore is aligned with the system bores in the first profile wall section and the second profile wall section to allow the insertion of clamping bolts or screw clamps.The system bore in the center strut has a chamfer of the welding and clamping table system on the side facing away from the first profile wall section. This allows for the clamping and centering of a clamping bolt inserted through the system bore in the first profile wall section and the system bore in the center strut. The cylindrical design of the walls of the system bores in the first profile wall section and the second profile wall section ensures that a screw clamp inserted into the system bores does not damage the chamfered system bore in the center strut during clamping.

[0016] The profile element according to the invention thus offers optimal conditions for the use of screw clamps and clamping bolts. It can be advantageously manufactured from aluminum using an extrusion process and subsequently provided with the system bores. This results in lightweight parts that are easy to handle and transport. However, other materials and / or manufacturing processes, such as 3D printing, casting, and pressing, are also possible for implementing the invention.

[0017] According to an advantageous embodiment of the invention, the distance between the opposite surfaces of the first profile wall section and the second profile wall section corresponds to twice the standard material thickness of the welding and clamping table system. This ensures that a clamping bolt clamped in the system bore of the center strut does not protrude from the system bore in the second profile wall section. Furthermore, it is possible to fasten the profile element with a triple clamping bolt, for example, to a tabletop of the welding and clamping table system.

[0018] Depending on the stability and weight requirements of the profile element, a material thickening can be provided in the area of the system bores in the first profile wall section, in the second profile wall section, and / or in the center strut. This allows sufficient material thickness to be provided in the area of the system bores to create the required cylindrical portion in the system bores in the first profile wall section and the second profile wall section, or to create the chamfer in the system bore in the center strut. At the same time, material and weight can be saved in other areas of the profile element.

[0019] The profile element's application possibilities are further enhanced if at least one groove with a hexagonal cross-section is provided in the first profile wall. Such grooves are already used in welding and clamping table systems with the appropriate T-nuts. This allows various devices, such as a pillar drill or the like, to be mounted on the profile element.

[0020] One embodiment of the invention provides that the profile element is designed as a profile element for a tabletop. This allows a tabletop to be manufactured from several profile elements, whereby the individual profile elements, especially if made of aluminum, are easy to handle and transport. These profile elements can have one or more rows of system bores running in the longitudinal direction of the profile element, corresponding to the bore pattern of tabletops of the welding and clamping table system. A groove with a hexagonal cross-section can be provided between each row of system bores.

[0021] One embodiment of this design provides for a groove or tongue in at least one lateral profile wall to be provided with a corresponding tongue or groove in another profile element to prevent the profile elements from bending in the direction of the system bores. Profile elements used inside a table top advantageously have a groove in one lateral profile wall and a tongue in the other lateral profile wall. For the two profile elements that each form the end of a table top, it is sufficient if a groove or tongue is present in one lateral wall. In a table top made from such profile elements, the grooves and tongues interlock. This prevents the profile elements from bending in the direction of the system bores, particularly when a screw clamp is used to clamp across the individual profile elements.

[0022] A further embodiment of the profile element for a tabletop provides that a portion of a groove with a hexagonal cross-section is provided in at least one outer region of the first profile wall of the profile element, which groove can be supplemented with another profile element to form a groove with a hexagonal cross-section. This embodiment is particularly advantageous if at least one groove with a hexagonal cross-section is already provided in the first profile wall. It is then possible to easily produce a tabletop from the profile elements that has several parallel grooves with a hexagonal cross-section at equal spacing.

[0023] Another embodiment of the profile element as a profile element for a tabletop provides for a groove with a hexagonal cross-section to be provided in a lateral profile wall of the profile element. Such a profile element can be used as the outermost profile element of a tabletop, so that a groove with a hexagonal cross-section can also be used on an outer edge of the tabletop. It is understood that this embodiment can be particularly advantageously combined with the embodiment described in the previous paragraph.

[0024] With the profile elements of the profile element design as a profile element for a table top, you get a table top for a welding and clamping table system.

[0025] Another embodiment of the invention provides that the profile element is designed as a profile element for a table side, in that it has a fastening wall spaced from the second profile wall section, which is designed for fastening the profile element to a table frame. Such a profile element can be fastened to a table frame and thus form a side panel on one side of a table made of the profile element according to the invention, as is known from welding and clamping tables.

[0026] Combined with a table frame, the tabletop according to the invention creates a table for a welding and clamping table system. The table frame can be made of aluminum profiles in a conventional manner. This results in a lightweight yet stable table that can be used, for example, as a workbench. It provides a stable work surface that can be used for various tasks such as metal and woodworking, repairs, or assembly. The individual components of the table can be easily shipped, and the table can be assembled by one person.

[0027] One design of the table provides for a profile element for one side of the table to be attached to the table frame, which expands the table's possible uses.

[0028] Another embodiment of the invention provides that the profile element is designed as an angle for a welding and clamping table system. Such an angle can have, in at least one leg, the inventive combination of system bores in a first profile wall section and a second profile wall section with cylindrical walls, as well as in a center strut with a chamfer. These can then be used within the welding and clamping table system with both screw clamps and clamping bolts, as explained above. One or more grooves with a hexagonal cross-section can also be provided in the first profile wall of at least one leg of the angle.

[0029] A further embodiment of the invention provides that the profile element is designed as a stop for a welding and clamping table system. Such a stop has the inventive combination of system bores in a first profile wall section and a second profile wall section with cylindrical walls, as well as in a center strut with a chamfer. These can then be used within the welding and clamping table system with both screw clamps and clamping bolts, as explained above. One or more grooves with a hexagonal cross-section can also be provided in the first profile wall of the stop.

[0030] A further embodiment of the invention provides that the profile element is designed as a square profile for a welding and clamping table system. Such a square profile can have, in at least one outer wall, the inventive combination of system bores in a first profile wall section and a second profile wall section with cylindrical walls, as well as in a center strut with a chamfer. These can then be used within the welding and clamping table system with both screw clamps and clamping bolts, as explained above. One or more grooves with a hexagonal cross-section can also be provided in the first profile wall of at least one outer wall of the square profile.

[0031] The invention is explained in more detail using exemplary embodiments in the drawings. They show: Fig. 1 a perspective top view of a profile element for a table top, Fig. 2 a perspective bottom view of the profile element of the Fig. 1, Fig. 3 a front view of the profile element of the Fig. 1 and Fig. 2, Fig. 4 a sectional view of the profile element of the Fig. 1 to 3, Fig. 5 a perspective top view of another profile element for a table top, Fig. 6 a perspective bottom view of the profile element of the Fig. 5, Fig. 7 a front view of the profile element of the Fig. 5 and Fig. 6, Fig. 8 a sectional view of the profile element of the Fig. 5 to 7, Fig. 9 a perspective view of a part of the profile element of the Fig. 5 with a screw clamp, a stop and a clamping bolt, Fig. 10 a front view of the Fig. 9, Fig. 11 a sectional view of the Fig. 9 and Fig. 10, Fig. 12 additional profile elements for a table top, Fig. 13 one of the profile elements of the Fig. 12 assembled table top, Fig. 14 a perspective view of a table, Fig. 15 a front view of the table of the Fig. 14, Fig. 16 an exploded view of the Fig. 14, Fig. 17 an exploded view of the Fig. 15, Fig. 18 a perspective view of the table of the Fig. 14 with a workpiece, a screw clamp, stops and clamping bolts, Fig. 19 a perspective rear view of a profile element for a table side, Fig. 20 a perspective front view of the profile element of the Fig. 19, Fig. 21 a front view of the profile element of the Fig. 19 and Fig. 20, Fig. 22 a sectional view of the profile element of the Fig. 19 to 21, Fig. 23 a perspective view of a table with profile elements for one side of the table, Fig. 24 an exploded view of the Fig. 23, Fig. 25 a front view of the table of the Fig. 23, Fig. 26 an exploded view of the Fig. 25, Fig. 27 a perspective view of a table with a pillar drill, Fig. 28 a front view of the table of the Fig. 27, Fig. 29 an exploded view of the Fig. 28, Fig. 30 a perspective view of a profile element as an angle, Fig. 31 a front view of the profile element of the Fig. 30, Fig. 32 a sectional view of the profile element of the Fig. 30 and Fig. 31, Fig. 33 a perspective view of a profile element as a square profile, Fig. 34 a front view of the profile element of the Fig. 33 and Fig. 35 a sectional view of the profile element of the Fig. 33 and Fig. 34.

[0032] In the Fig. 1 to 4, a profile element 1 for a welding and clamping table system is shown, which is designed as a profile element 1 for a table top. The profile element 1 has a first profile wall 2 and a second profile wall 3. The first profile wall 2 comprises a plurality of first profile wall sections 4 with a plurality of rows of system bores 5 of the welding and clamping table system running in the longitudinal direction of the profile element 1, which correspond to the bore pattern of table tops of the welding and clamping table system. The second profile wall 3 comprises a plurality of second profile wall sections 6 with a plurality of rows of system bores 7 of the welding and clamping table system running in the longitudinal direction of the profile element 1, wherein the system bores 5 and 7 are each aligned with one another.The first profile wall sections 4 and the second profile wall sections 6 run parallel to each other and have a distance 8 between the opposite surfaces 9, 10 of the first profile wall section 4 and the second profile wall section 6, which is greater than the standard material thickness of the welding and clamping table system, namely twice the standard material thickness of the welding and clamping table system. The walls 11 of the system bores 5 in the first profile wall sections 4 and the walls 12 of the system bores 7 in the second profile wall sections 6 are cylindrical.

[0033] Parallel to the first profile wall sections 4, a central strut 13 is provided with several rows of system bores 14 of the welding and clamping table system running in the longitudinal direction of the profile element 1, wherein the system bores 14 are aligned with the system bores 5 and 7. The system bores 14 have a chamfer 15 of the welding and clamping table system on the side facing away from the first profile wall sections 4. The distance 16 between the opposite surfaces 9, 17 of the first profile wall section 4 and the central strut 13 corresponds to the standard material thickness of the welding and clamping table system.

[0034] Material thickenings 18 are provided in the area of system bores 5, 7, and 14. This ensures that sufficient material is available in the area of system bores 5, 7, and 14 to produce the cylindrical walls 11, 12 and the chamfer 15, while simultaneously keeping the weight of profile element 1 low. To meet the stability requirements of profile element 1, struts 19 are provided inside profile element 1. Optional screw channels 20 offer the possibility of fastening to the front side of profile element 1 using self-tapping screws.

[0035] In the first profile wall 2, several grooves 21 with a hexagonal cross-section are provided in the longitudinal direction of the profile element 1. In the outer regions of the first profile wall 2, a part 22 of a groove with a hexagonal cross-section is provided, which can be supplemented with another profile element 1 or another suitable profile element to form a groove with a hexagonal cross-section.

[0036] To connect the profile element 1 to a table frame, mounting holes 23 are provided in the first profile wall 2, the center strut 13, and the second profile wall 3. The diameters of the mounting holes 23 are selected so that, for example, a screw can be inserted through the first profile wall 2 and the center strut 13 and the second profile wall 3 can be screwed to a table frame. The side walls 24 of the profile element 1 are straight, allowing multiple profile elements 1 to be joined together to form a tabletop.

[0037] In the Fig. 5 to 8, another profile element 25 for a welding and clamping table system is shown, which is designed as a profile element 25 for a table top, in particular for the lateral closure of a table top. The profile element 25 has a first profile wall 2 and a second profile wall 3. The first profile wall 2 comprises a plurality of first profile wall sections 4 with a plurality of rows of system bores 5 of the welding and clamping table system running in the longitudinal direction of the profile element 25, which correspond to the bore pattern of table tops of the welding and clamping table system. The second profile wall 3 comprises a plurality of second profile wall sections 6 with a plurality of rows of system bores 7 of the welding and clamping table system running in the longitudinal direction of the profile element 25, wherein the system bores 5 and 7 are each aligned with one another.The first profile wall sections 4 and the second profile wall sections 6 run parallel to each other and have a distance 8 between the opposite surfaces 9, 10 of the first profile wall section 4 and the second profile wall section 6, which is greater than the standard material thickness of the welding and clamping table system, namely twice the standard material thickness of the welding and clamping table system. The walls 11 of the system bores 5 in the first profile wall sections 4 and the walls 12 of the system bores 7 in the second profile wall sections 6 are cylindrical.

[0038] Parallel to the first profile wall sections 4, a central strut 13 is provided with several rows of system bores 14 of the welding and clamping table system extending in the longitudinal direction of the profile element 25, wherein the system bores 14 are aligned with the system bores 5 and 7. The system bores 14 have a chamfer 15 of the welding and clamping table system on the side facing away from the first profile wall sections 4. The distance 16 between the opposite surfaces 9, 17 of the first profile wall section 4 and the central strut 13 corresponds to the standard material thickness of the welding and clamping table system.

[0039] Material thickenings 18 are provided in the area of system bores 5, 7, and 14. This ensures that sufficient material is available in the area of system bores 5, 7, and 14 to produce the cylindrical walls 11, 12 and the chamfer 15, while simultaneously keeping the weight of profile element 25 low. To meet the stability requirements of profile element 25, struts 19 are provided inside profile element 25. Optional screw channels 20 offer the possibility of fastening to the front side of profile element 25 using self-tapping screws.

[0040] In the first profile wall 2, several grooves 21 with a hexagonal cross-section are provided in the longitudinal direction of the profile element 25. In an outer region of the first profile wall 2, a part 22 of a groove with a hexagonal cross-section is provided, which can be supplemented with another profile element 25, a profile element 1, or another suitable profile element to form a groove with a hexagonal cross-section.

[0041] In order to connect the profile element 25 to a table frame, fastening holes 23 are provided in the first profile wall 2, the center strut 13, and the second profile wall 3. The diameters of the fastening holes 23 are selected such that, for example, a screw can be inserted through the first profile wall 2 and the center strut 13 and the second profile wall 3 can be screwed to a table frame. One side wall 24 of the profile element 25 is straight, so that the profile element 25 can be joined to another profile element 25 or to several profile elements 1 to form a table top. The other side wall 24 of the profile element 25 is provided with a groove 26 with a hexagonal cross-section. The profile element 25 can be used as the outermost profile element 25 of a table top, so that a groove with a hexagonal cross-section can also be used on an outer edge of the table top.

[0042] Based on the Fig. 9 to 11 illustrate the advantages of the invention with regard to the direct use of screw clamps and the use of double clamping bolts. Fig. 9 to 11 show part of the profile element 25. A screw clamp 27, known from the prior art, is inserted into one of the system bores 5, 7, 14. For this purpose, a round base piece 28 is inserted into the system bores 5, 7, 14. A collar 29 rests on the surface 9 of a first profile wall section 4. A flat iron 30 is fastened to the collar 29 as a vertical strut. A horizontal strut 31 accommodates a threaded spindle 32. It is understood that the length of the base piece 28 is selected so that it can reach through the system bores 5, 7, 14. The screw clamp 27 thus has a longer clamping height in the profile element 25, which is necessary for secure clamping.At the same time, the cylindrical design of the walls 11, 12 of the system bores 5, 7 in the first profile wall section 4 and in the second profile wall section 6 ensures that, due to a high cylindrical portion in the system bores 5, 7, forces occurring during clamping can be absorbed without fear of damage to the system bores 5, 7, 14. If necessary, the thread pitch of the threaded spindle can also be adjusted.

[0043] A prior art double clamping bolt is inserted into another of the system bores 5, 7, 14 through a prior art stop 34. For this purpose, the stop 34 has, for example, a slot-shaped recess 35 and a standard material thickness of the welding and clamping table system. The clamping devices, such as balls or tilting elements of the clamping bolt 33, can be securely centered and clamped in the chamfer 15 of the system bore 14.

[0044] In the Fig. 12 and Fig. 13 shows other profile elements 36, 37, and 38. Profile elements 36 and 38 essentially correspond to profile element 25. Profile elements 37 essentially correspond to profile element 1. Reference is therefore made to the explanations regarding the basic structure of profile elements 1 and 25. In contrast to profile element 25, one side wall 24 of profile element 36 is not straight, but has a tongue 39. One side wall 24 of profile element 38 has a groove 40. The side walls 24 of profile elements 37 have a groove 40 on one side and a tongue 39 on the other side.

[0045] In the Fig. 13, the profile elements 36, 37, 38 are joined together to form a table top 41. It can be seen that the tongue 39 and groove 40 in the various profile elements 36, 37, 38 engage with each other, so that bending of the profile elements 36, 37, 38 in the through-passage direction 42 of the system bores 5, 7, 14 is prevented, especially when a screw clamp is used to clamp across the individual profile elements.

[0046] In the Fig. 14 to 17 show a table 43 with a table base 44 and a table top 45. The table base comprises a table frame 46 with a cross brace 47, table legs 48, and height-adjustable feet 49 arranged thereon. The table base 44 can be made, for example, from aluminum profiles. The table top 45 is composed of profile elements 1, 25, with the profile elements 25 each forming an outer end of the table top 45. The individual profile elements 1, 25 are fastened to the table frame 46, including the cross brace 47, with screws 50. Instead of the table base 44, the table top 41 could also be used, for example, on a lifting table.

[0047] In the Fig. Figure 18 shows the table 43, on which a workpiece 51 is clamped. For this purpose, two stops 34 are attached to the tabletop 45 with clamping bolts 33. A screw clamp 27 clamps the workpiece to the tabletop 45.

[0048] In the Fig. 19 to 22, a further profile element 52 for a welding and clamping table system is shown, which is designed as a profile element 52 for a table side. The profile element 52 has a first profile wall 2 and a second profile wall 3. The first profile wall 2 comprises two first profile wall sections 4 with several rows of system bores 5 of the welding and clamping table system, which run in the longitudinal direction of the profile element 52 and correspond to the bore pattern of tabletops of the welding and clamping table system. The second profile wall 3 comprises two second profile wall sections 6 with several rows of system bores 7 of the welding and clamping table system, which run in the longitudinal direction of the profile element 52, wherein the system bores 5 and 7 are each aligned with one another.The first profile wall sections 4 and the second profile wall sections 6 run parallel to each other and have a distance 8 between the opposite surfaces 9, 10 of the first profile wall section 4 and the second profile wall section 6, which is greater than the standard material thickness of the welding and clamping table system, namely twice the standard material thickness of the welding and clamping table system. The walls 11 of the system bores 5 in the first profile wall sections 4 and the walls 12 of the system bores 7 in the second profile wall sections 6 are cylindrical.

[0049] Parallel to the first profile wall sections 4, a central strut 13 is provided with several rows of system bores 14 of the welding and clamping table system extending in the longitudinal direction of the profile element 52, wherein the system bores 14 are aligned with the system bores 5 and 7. The system bores 14 have a chamfer 15 of the welding and clamping table system on the side facing away from the first profile wall sections 4. The distance 16 between the opposite surfaces 9, 17 of the first profile wall section 4 and the central strut 13 corresponds to the standard material thickness of the welding and clamping table system.

[0050] Material thickenings 18 are provided in the area of system bores 5, 7, and 14. This ensures that sufficient material is available in the area of system bores 5, 7, and 14 to produce the cylindrical walls 11, 12 and the chamfer 15, while simultaneously keeping the weight of profile element 52 low. To meet the stability requirements of profile element 52, struts 19 are provided inside profile element 52. An optional screw channel 20 offers the possibility of fastening to the front side of profile element 52 using self-tapping screws.

[0051] In the first profile wall 2, a groove 21 with a hexagonal cross-section is provided in the longitudinal direction of the profile element 52.

[0052] In order to connect the profile element 52 to a table frame 44, a fastening wall 53 is provided, spaced from the second profile wall sections 6, which is designed for fastening the profile element 52 to a table frame 44. For this purpose, fastening holes 23 are provided in the first profile wall 2, the center strut 13 and the second profile wall 3, as well as in the fastening wall 53. The diameters of the fastening holes 23 are selected such that, for example, a screw can be inserted through the first profile wall 2, the center strut 13 and the second profile wall 3 and the fastening wall 53 can be screwed to a table frame 44.

[0053] In the Fig. 23 to 26 is table 43 of the Fig. 14 to 17, which is additionally provided with two profile elements 52 on the sides. The profile elements 52 form a side panel familiar from welding and clamping tables. For this purpose, the profile elements 52 are attached to the table frame 44 with screws 50.

[0054] In the Fig. Figures 27 to 29 show a table 43 with a column drilling machine 54. Only two profile elements 1 are used as the tabletop 45, which are mounted slightly spaced apart on the table frame 46. This illustrates the high degree of flexibility achieved with the invention. The base plate 55 of the column drilling machine 54 is provided with screws 56 with T-nuts 57 with a hexagonal cross-section. The T-nuts 57 are guided in the grooves 21 with a hexagonal cross-section.

[0055] In the Fig. Figures 30 to 32 show another profile element 58 for a welding and clamping table system, which is designed as an angle. The profile element 58 has two legs 59, 60. One leg 59 has a first profile wall 2 and a second profile wall 3. The first profile wall 2 comprises two first profile wall sections 4, each with a system bore 5 of the welding and clamping table system, which corresponds to the bore pattern of the tabletops of the welding and clamping table system.

[0056] The second profile wall 3 comprises two second profile wall sections 6, each with a system bore 7 of the welding and clamping table system, wherein the system bores 5 and 7 are aligned with one another. The first profile wall sections 4 and the second profile wall sections 6 run parallel to one another and have a distance 8 between the opposite surfaces 9, 10 of the first profile wall section 4 and the second profile wall section 6 that is greater than the standard material thickness of the welding and clamping table system, namely twice the standard material thickness of the welding and clamping table system. The walls 11 of the system bores 5 in the first profile wall sections 4 and the walls 12 of the system bores 7 in the second profile wall sections 6 are cylindrical.

[0057] Parallel to the first profile wall sections 4, a center strut 13 is provided with a system bore 14 of the welding and clamping table system, with the system bores 14 being aligned with the system bores 5 and 7. The system bores 14 have a chamfer 15 of the welding and clamping table system on the side facing away from the first profile wall sections 4. The distance 16 between the opposite surfaces 9, 17 of the first profile wall section 4 and the center strut 13 corresponds to the standard material thickness of the welding and clamping table system.

[0058] Material thickenings 18 are provided in the area of the system bores 5, 7, and 14. This ensures that sufficient material is available in the area of the system bores 5, 7, and 14 to produce the cylindrical walls 11, 12 and the chamfer 15, while at the same time keeping the weight of the profile element 58 low. To meet the stability requirements of the profile element 58, struts 19 are provided inside the profile element 58. Optional screw channels 20 offer the option of attaching thread-forming screws to the end face of the profile element 58. Two grooves 21 with a hexagonal cross-section are provided in the longitudinal direction of the profile element 58 in the first profile wall 2.

[0059] For example, a slot-shaped recess 35 is provided in the leg 60. It is understood that this leg could also be designed similarly to the leg 59.

[0060] In the Fig.Figures 33 to 35 show another profile element 61 for a welding and clamping table system, which is designed as a square profile. Instead of a square cross-section, a rectangular or polygonal design would also be conceivable.

[0061] The profile element 61 has four walls 62, 63, 64, 65. In the illustrated embodiment, the walls 62, 63, 64 each have a first profile wall 2 and a second profile wall 3. The first profile wall 2 comprises two first profile wall sections 4 with several rows of system bores 5 of the welding and clamping table system, running in the longitudinal direction of the profile element 61 and corresponding to the bore pattern of tabletops of the welding and clamping table system. The second profile wall 3 comprises two second profile wall sections 6 with several rows of system bores 7 of the welding and clamping table system, running in the longitudinal direction of the profile element 61, wherein the system bores 5 and 7 are each aligned with one another.The first profile wall sections 4 and the second profile wall sections 6 run parallel to each other and have a distance 8 between the opposite surfaces 9, 10 of the first profile wall section 4 and the second profile wall section 6, which is greater than the standard material thickness of the welding and clamping table system, namely twice the standard material thickness of the welding and clamping table system. The walls 11 of the system bores 5 in the first profile wall sections 4 and the walls 12 of the system bores 7 in the second profile wall sections 6 are cylindrical.

[0062] Parallel to the first profile wall sections 4, a central strut 13 is provided with several rows of system bores 14 of the welding and clamping table system extending in the longitudinal direction of the profile element 61, wherein the system bores 14 are aligned with the system bores 5 and 7. The system bores 14 have a chamfer 15 of the welding and clamping table system on the side facing away from the first profile wall sections 4. The distance 16 between the opposite surfaces 9, 17 of the first profile wall section 4 and the central strut 13 corresponds to the standard material thickness of the welding and clamping table system.

[0063] Material thickenings 18 are provided in the area of the system bores 5, 7, and 14. This ensures that sufficient material is available in the area of the system bores 5, 7, and 14 to produce the cylindrical walls 11, 12 and the chamfer 15, while at the same time keeping the weight of the profile element 61 low. To meet the stability requirements of the profile element 61, struts 19 are provided inside the profile element 61. Optional screw channels 20 offer the option of fastening to the front side of the profile element 61 using self-tapping screws. In the first profile wall 2, several grooves 21 with a hexagonal cross-section are provided in the longitudinal direction of the profile element 61.

[0064] The wall 65 of the profile element 61 has a flat recess 66 which facilitates the handling of the profile element 61 and enables reaching into the profile element 61.

[0065] The described examples of profile elements 1, 25, 36, 37, 38, 52, 58, 61 demonstrate the multitude of possibilities in which the invention according to claim 1 can be implemented. The number of existing system bores 5, 7, 14 can be selected depending on the requirements of the profile element. The grooves 21, 22, 26 do not necessarily have to be provided, i.e., it is also possible to design the first profile wall 2 between the respective first profile wall sections 4 straight. List of reference symbols 1 profile element 2 first profile wall 3 second profile wall 4 first profile wall sections 5 system holes in 4 6 second profile wall sections 7 system holes in 6 8 Distance 9 Surface of 4 10 surface of 6 11 wall of 5 12 wall of 7 13 Center strut 14 system holes in 13 15 chamfer 16 Distance 17 surface of 13 18 material thickenings 19 struts 20 screw channels 21 grooves 22 Part a groove 23 mounting holes 24 side wall 25 profile element (table end) 26 groove in 24 27 Screw clamp 28 Footpiece 29 collars 30 flat irons 31 horizontal strut 32 threaded spindle 33 clamping bolts 34 stop 35 slot-shaped recess 36 Profile element (table end with spring) 37 profile element (with tongue and groove) 38 Profile element (table end with groove) 39 spring 40 grooves 41 Table top 42 Passage direction 43 Table 44 Table frame 45 table top 46 table frames 47 Cross brace 48 table legs 49 feet 50 screws 51 Workpiece 52 Profile element (table side) 53 fixing wall 54 Pillar drill 55 base plate of 54 56 screws 57 T-nuts 58 Profile element (angle) 59 legs 60 legs 61 profile element (square) 62 wall of 61 63 wall of 61 64 wall of 61 65 wall of 61 66 recess QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] EP 0 541 904 A1

[0003] DE 91 09 540 U1

[0003] DE 199 17 209 A1

[0004] DE 10 2014 011 309 A1

[0004] DE 202 04 107 U1

[0005] DE 202 12 731 U1

[0005] DE 10 2009 022 013 A1

[0005] DE 20 2013 007 011 U1

[0005] DE 10 2020 005 960 A1

[0007]

Claims

[1] Profile element (1, 25, 36, 37, 38, 52, 58, 61) for a welding and clamping table system with at least one first profile wall (2) and at least one second profile wall (3), wherein - the first profile wall (2) has at least one first profile wall section (4) with at least one system bore (5) of the welding and clamping table system, - the second profile wall (3) has at least one second profile wall section (6) with at least one system bore (7) of the welding and clamping table system, - the first profile wall section (4) and the second profile wall section (6) run parallel to each other and have a distance (8) from each other that is greater than the standard material thickness of the welding and clamping table system, and - the system bores (5, 7) in the first profile wall section (4) and in the second profile wall section (6) are aligned with each other, characterized by , that - the walls (11, 12) of the system bores (5, 7) in the first profile wall section (4) and in the second profile wall section (6) are cylindrical, - a central strut (13) running parallel to the first profile wall section (4) is provided with at least one system bore (14) of the welding and clamping table system, wherein the distance (16) between the surfaces (9, 17) of the first profile wall section (4) and the central strut (13) facing away from one another corresponds to the standard material thickness of the welding and clamping table system, the system bore (14) is aligned with the system bores (5, 7) in the first profile wall section (4) and in the second profile wall section (6), and the system bore (14) has a chamfer (15) of the welding and clamping table system on the side facing away from the first profile wall section (4). [2] Profile element (1, 25, 36, 37, 38, 52, 58, 61) according to claim 1, characterized bythat the distance (8) between the mutually opposite surfaces (9, 10) of the first profile wall section (4) and the second profile wall section (6) corresponds to twice the standard material thickness of the welding and clamping table system. [3] Profile element (1, 25, 36, 37, 38, 52, 58, 61) according to one of the preceding claims, characterized by that a material thickening (18) is provided in the region of the system bores (5, 7, 14) in the first profile wall section (4), in the second profile wall section (6) and / or in the central strut (13). [4] Profile element (1, 25, 36, 37, 38, 52, 58, 61) according to one of the preceding claims, characterized by that at least one groove (21) with a hexagonal cross-section is provided in the first profile wall (2). [5] Profile element (1, 25, 36, 37, 38) according to one of claims 1 to 4, characterized by that it is designed as a profile element (1, 25, 36, 37, 38) for a table top (41, 45). [6] Profile element (36, 37, 38) according to claim 5, characterized by that in at least one lateral profile wall (24) a groove (40) or a tongue (39) is provided, which can cooperate with a corresponding tongue (39) or groove (40) in another profile element (36, 37, 38) in order to prevent bending of the profile elements (36, 37, 38) in the passage direction (42) of the system bores (5, 7, 14). [7] Profile element (1, 25, 36, 37, 38) according to claim 5 or 6, characterized by that in at least one outer region of the first profile wall (2) of the profile element (1, 25, 36, 37, 38) a part (22) of a groove with a hexagonal cross-section is provided, which can be supplemented with a further profile element (1, 25, 36, 37, 38) to form a groove with a hexagonal cross-section. [8] Profile element (25, 36, 38) according to one of claims 5 to 7, characterized bythat a groove (26) with a hexagonal cross-section is provided in a lateral profile wall (24) of the profile element (25, 36, 38). [9] Table plate (41, 45) for a welding and clamping table system comprising at least one profile element (1, 25, 36, 37, 38) according to one of claims 5 to 8. [10] Profile element (52) according to one of claims 1 to 4, characterized by that it is designed as a profile element (52) for a table side in that it has a fastening wall (53) spaced from the second profile wall section (6) and adapted for fastening the profile element (52) to a table frame (44). [11] Table (43) for a welding and clamping table system comprising a table frame (44) and a table top (41, 45) according to claim 9. [12] Table (43) according to claim 11, characterized by that at least one profile element (52) according to claim 10 is fastened to the table frame (44). [13] Profile element (58) according to one of claims 1 to 4, characterized by that it is designed as an angle for a welding and clamping table system. [14] Profile element according to one of claims 1 to 4, characterized by that it is designed as a stop for a welding and clamping table system. [15] Profile element (61) according to one of claims 1 to 4, characterized by that it is designed as a square profile for a welding and clamping table system.

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