Numerically-controlled machine tool workbench and connecting and supporting structure thereof

Abstract

The utility model discloses a numerical control machine tool working table and a connecting and supporting structure thereof, which comprises a working table top and a working table peripheral wall, and an inner folding edge, a supporting bottom plate, a transverse supporting plate, a longitudinal supporting plate and a diagonal supporting plate are arranged in the working table peripheral wall. The transverse supporting plate, the longitudinal supporting plate and the diagonal supporting plate all extend upwards and are connected to the inner top wall of the table top of the workbench. A plurality of receding spaces are formed in the positions, close to the bottom, of the outer side of the peripheral wall of the workbench at intervals, connecting holes penetrating downwards are formed in the receding spaces correspondingly, and the receding spaces and the connecting holes are used for being connected with a sizing block assembly supporting the workbench. The numerical control machine tool working table is simple in structure and good in stability, the dead weight of the whole working table can be reduced, comprehensive supporting can be provided to keep the table top of the working table stable, and the machining stability of a machine tool can be improved.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, specifically to a CNC machine tool worktable and its connecting support structure. Background Technology

[0002] The worktable is one of the most important components of a machine tool, serving as the primary platform for supporting the machine's machining components and the workpiece to be processed. The structural and support stability of the worktable is crucial for machine tool processing. Vibrations and forces generated during machining must be absorbed and mitigated by the worktable, making its structural design highly important. While existing technologies utilize reinforcing plates and ribs to improve the stress and stability of the worktable, irregular ribs increase the difficulty of manufacturing the worktable, and their increased number also increases its weight.

[0003] In addition, the workbench itself must be stable, and the machine feet that connect and support the workbench must also provide good stability and facilitate the installation of the workbench. Summary of the Invention

[0004] The purpose of this utility model is to address the problems existing in the prior art by providing a CNC machine tool worktable and its connecting support structure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A CNC machine tool worktable includes a worktable surface and a worktable peripheral wall disposed below the worktable surface. The bottom inner side of the worktable peripheral wall is provided with an inner folded edge. A plurality of support base plates are provided between the inner folded edges along the length direction of the worktable. A plurality of transverse support plates and longitudinal support plates connected to the worktable peripheral wall are provided on the inner folded edge. The plurality of transverse support plates and longitudinal support plates are staggered to form a plurality of independent chambers. At least one row of chambers is provided with a diagonal support plate connected to adjacent transverse support plates and longitudinal support plates. The transverse support plates, longitudinal support plates and diagonal support plates all extend upward and are connected to the inner top wall of the worktable surface. A plurality of clearance spaces are provided at intervals near the bottom of the outer side of the worktable peripheral wall. A downward through-hole is provided in each clearance space. The clearance spaces and the through-holes are used to connect a support pad assembly for the worktable.

[0007] The CNC machine tool's worktable has a simple structure and good stability. By improving the structure under the worktable surface, the overall weight of the worktable can be reduced, while providing comprehensive support to maintain the stability of the worktable surface, which is conducive to improving the machining stability of the machine tool. Moreover, the worktable has good overall integrity and is equipped with a reasonable installation area, which facilitates the placement of the worktable.

[0008] By providing the inner folded edge on the lower inner side of the workbench's peripheral wall, in conjunction with the supporting base plate, the basic frame structure of the workbench can be formed. The inner folded edge can connect multiple horizontal and vertical support plates, forming several independent chambers. This structure provides excellent support without occupying a large amount of internal space and also helps to distribute the load on the workbench. Further enhancing support stability and overall rigidity by installing diagonal support plates within the chambers.

[0009] Furthermore, the diagonal support plates are arranged in a row of chambers in the central area of ​​the workbench, and the multiple diagonal support plates are arranged in sequence to form a wave-shaped structure.

[0010] Furthermore, the workbench perimeter wall, the transverse support plate, and the diagonal support plate are provided with multiple sets of corresponding horizontal through holes.

[0011] Furthermore, the workbench is provided with several X-shaped reinforcing ribs on its peripheral wall, and each X-shaped reinforcing rib is respectively disposed in a cavity near the peripheral wall of the workbench.

[0012] Furthermore, the inner side of the workbench perimeter wall is provided with inner columns at the locations where the clearance space is arranged, and the horizontal depth of the clearance space is greater than the thickness of the workbench perimeter wall.

[0013] Furthermore, 3 to 8 of the aforementioned clearance spaces are arranged in the length direction, and 1 to 3 of the aforementioned clearance spaces are arranged in the width direction.

[0014] A connecting support structure for a CNC machine tool worktable, wherein each of the clearance spaces is provided with a shim assembly below it, the shim assembly being connected to the connecting hole by bolts and / or nuts, the shim assembly being set on the ground foundation, and the bottom of the peripheral wall of the worktable with the clearance space being provided with a thickened layer.

[0015] In some embodiments, the shim assembly includes a shim body, the bottom of which is provided with a connecting rib with a hook, the connecting rib being embedded in the ground foundation, the top of which is provided with a countersunk hole, the countersunk hole being provided corresponding to the connecting hole and connected by bolts, and a gasket being provided between the shim body and the thickened layer.

[0016] In some embodiments, the shim assembly includes a shim body with a vertical through hole. A connecting rib with a hook is connected to the vertical through hole. The connecting rib is embedded in the ground foundation. The connecting rib passes through the connecting hole and extends into the clearance space and is fastened by a nut. A gasket is also provided between the shim body and the thickened layer.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. The CNC machine tool worktable has a simple structure and good stability. By improving the structure under the worktable surface, the weight of the entire worktable can be reduced, and comprehensive support can be provided to maintain the stability of the worktable surface, which is conducive to improving the processing stability of the machine tool; 2. The worktable has good overall integrity and is equipped with a reasonable installation area, which facilitates the placement of the worktable; 3. The worktable structure of this application is very convenient to manufacture due to its regular structure and shape; 4. This connecting support structure is easy to operate and construct, and can not only support the worktable well, but also has high stability, which is conducive to the stable setting of the machine tool worktable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a CNC machine tool worktable according to the present invention;

[0019] Figure 2 This is a schematic diagram of the bottom structure of a CNC machine tool worktable according to the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of a CNC machine tool worktable according to the present invention;

[0021] Figure 4 This is a schematic diagram of another structure of the peripheral wall of the workbench of this utility model;

[0022] Figure 5 This is a partial structural diagram of the inner column on the inner side of the peripheral wall of the workbench of this utility model;

[0023] Figure 6 This is a schematic diagram of a CNC machine tool worktable installed on a ground foundation according to the present invention;

[0024] Figure 7 This is a schematic diagram of the connection between the pad assembly of this utility model and the peripheral wall of the workbench;

[0025] Figure 8 This is a schematic diagram of another structure for connecting the pad assembly of this utility model to the peripheral wall of the workbench;

[0026] In the diagram: 1. Workbench surface; 2. Workbench perimeter wall; 3. Inner folded edge; 4. Support base plate; 5. Horizontal support plate; 6. Longitudinal support plate; 7. Diagonal support plate; 8. Clearance space; 9. Connecting hole; 10. Horizontal through hole; 11. Inner column; 12. X-shaped reinforcing rib; 13. Ground foundation; 14. Shim body; 15. Connecting countersunk hole; 16. Bolt; 17. Nut; 18. Connecting rib; 19. Thickened layer; 20. Shim; 21. Vertical through hole. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example 1

[0029] like Figures 1-3 As shown, a CNC machine tool worktable includes a worktable surface 1 and a worktable peripheral wall 2 disposed below the worktable surface 1. The bottom inner side of the worktable peripheral wall 2 is provided with an inner folded edge 3. A plurality of support base plates 4 are provided between the inner folded edges 3 along the length direction of the worktable. A plurality of transverse support plates 5 and longitudinal support plates 6 connected to the worktable peripheral wall 2 are provided on the inner folded edges 3. The plurality of transverse support plates 5 and longitudinal support plates 6 are staggered to form a plurality of independent chambers. At least one row of chambers is provided with diagonal support plates 7 connected to adjacent transverse support plates 5 and longitudinal support plates 6. The transverse support plates 5, longitudinal support plates 6 and diagonal support plates 7 all extend upward and are connected to the inner top wall of the worktable surface 1. A plurality of clearance spaces 8 are provided at intervals on the outer side of the worktable peripheral wall 2 near the bottom. A downward penetrating connecting hole 9 is provided at each clearance space 8. The clearance space 8 and the connecting hole 9 are used to connect the support pad assembly of the worktable.

[0030] The CNC machine tool's worktable has a simple structure and good stability. By improving the structure under the worktable surface, the overall weight of the worktable can be reduced, while providing comprehensive support to maintain the stability of the worktable surface, which is conducive to improving the machining stability of the machine tool. Moreover, the worktable has good overall integrity and is equipped with a reasonable installation area, which facilitates the placement of the worktable.

[0031] By providing the inner folded edge 3 on the lower inner side of the workbench perimeter wall 2, in conjunction with the supporting base plate 4, the basic frame structure of the workbench can be formed. The inner folded edge 3 can connect multiple transverse support plates 5 and longitudinal support plates 6, forming multiple independent chambers. This structure provides excellent support without occupying a large amount of internal space and also helps to distribute the load on the workbench. Further enhancing support stability and overall rigidity by installing diagonal support plates within the chambers.

[0032] The workbench structure described in this application is very easy to manufacture due to its regular structure and shape. The workbench surface 1, the workbench perimeter wall 2, the inner folded edge 3, the supporting base plate 4, the transverse supporting plate 5, the longitudinal supporting plate 6, and the diagonal supporting plate 7 can be integrally formed ductile iron or gray cast iron structures, and can be mass-produced by casting. The clearance space 8 and the horizontal through holes can also be cast together, making the manufacturing process very convenient.

[0033] In some embodiments, the worktable surface 1, the worktable peripheral wall 2, the inner folded edge 3, the supporting base plate 4, the transverse supporting plate 5, the longitudinal supporting plate 6, and the diagonal supporting plate 7 can also be separately manufactured mineral plate structures, such as marble structural components. Worktables made of ductile iron and mineral materials have good vibration reduction and filtering effects. Mineral worktables also have insulation properties, which can improve the stability of machine tool operation and facilitate precision machining.

[0034] In this embodiment, the length and width of the workbench surface 1 are greater than the length and width of the workbench perimeter wall 2, but the length or width of the workbench perimeter wall 2 is not less than 70% of the length or width of the workbench surface 1, so as to ensure that the workbench perimeter wall can provide a more reasonable support effect.

[0035] Furthermore, the diagonal support plates 7 are arranged in a row of chambers in the middle area of ​​the workbench. The multiple diagonal support plates 7 are arranged in sequence to form a wave-shaped structure. This structure can better distribute the force and form multiple continuous triangular areas, which is beneficial to improving stability.

[0036] Furthermore, the workbench perimeter wall 2, the transverse support plate 5, and the diagonal support plate 7 are provided with multiple sets of corresponding horizontal through holes 10. The horizontal through holes 10 facilitate wiring at the front and rear of the machine tool, or the passage of items. They also serve as lifting points for hooks, ropes, etc., to be connected for lifting and moving the entire workbench or machine tool. These horizontal through holes can also be used as heat dissipation channels later; cooling fans can be installed at these holes to reduce the temperature of the workbench.

[0037] In some implementations, for longer, larger worktables, such as those with... Figure 4 The workbench shown may have several X-shaped reinforcing ribs 12 on its peripheral wall 2, with each X-shaped reinforcing rib 12 disposed in a cavity near the peripheral wall 2. These X-shaped reinforcing ribs 12 can further improve the strength and support stability of the peripheral wall of the workbench, and their placement does not occupy a large amount of internal space.

[0038] Furthermore, in combination Figure 3 and Figure 5 As shown, the inner side of the workbench perimeter wall 2 is provided with inner columns 11 at the locations where the clearance space 8 is arranged, and the horizontal depth of the clearance space 8 is greater than the thickness of the workbench perimeter wall 2.

[0039] The inner column 11 is installed here not only to improve the support strength and stability of the clearance space, but also to thicken the area so as to arrange these clearance spaces. The clearance space 8 extends into the inner column 11 to ensure that there is sufficient space to connect the subsequent pad assembly.

[0040] Furthermore, 3 to 8 of the aforementioned clearance spaces are arranged in the length direction, and 1 to 3 of the aforementioned clearance spaces are arranged in the width direction. Correspondingly, the number of the aforementioned pad assemblies is also 3 to 8 and 1 to 3. Example 2

[0041] This embodiment provides the connection and support structure for the CNC machine tool worktable in Embodiment 1, such as... Figure 6 As shown, each of the clearance spaces 8 is provided with a shim assembly below it. The shim assembly is connected to the connection hole by bolts and / or nuts. The shim assembly is set on the ground foundation 13. The bottom of the peripheral wall of the workbench with the clearance space 8 is provided with a thickened layer 19.

[0042] The ground foundation 13 is an excavated and cast concrete structure that provides sufficient and stable support. The depth of the ground foundation 13 depends on the soil conditions at the location, but it shall not be less than 800mm. The shim assembly not only supports the workbench, but also provides vibration damping through the selection of shim materials or types. The combined use of multiple shim assemblies can also adjust the levelness of the workbench. After the workbench is raised and supported, the internal space of the workbench can be connected to the outside from below, which is beneficial for ventilation and heat dissipation.

[0043] The thickening layer 19 can appropriately increase the thickness of the connection, which is beneficial to improving the local stress distribution. The thickness of the thickening layer 19 is 5-10 mm.

[0044] Depending on the style of the pad assembly, the following two connection methods can be adopted. Both methods use a pre-embedded structure, which helps to improve the stability of the support connection structure.

[0045] Method 1, such as Figure 7 As shown, the shim assembly includes a shim body 14, the bottom of which is provided with a connecting rib 18 with a hook, the connecting rib 18 being embedded in the ground foundation 13, the top of which is provided with a connecting countersunk hole 15, the connecting countersunk hole 15 being correspondingly provided with the connecting hole 9 and connected by bolts 16, and a gasket 20 being provided between the shim body 14 and the thickened layer 19.

[0046] In this method, the shim body 14 and the hooked connecting rib 18 below it are integral structures. When the ground foundation 13 is poured, the connecting rib 18 is pre-embedded in a preset position, and the shim body 14 is also positioned in the preset position. After connecting bolts 16 through the countersunk holes 15 on the shim body 14, the shim 20 is laid on it, and then the workbench is suspended above these shim bodies. After aligning the connecting holes with these bolts, the workbench is placed and locked with nuts 17. Alternatively, the workbench can be placed on these shim bodies first, the connecting holes and countersunk holes are aligned, and then the bolts are connected through the clearance space.

[0047] Method 2, such as Figure 8 As shown, the pad assembly includes a pad body 14, the pad body 14 is provided with a vertical through hole 21, a connecting rib 18 with a hook is connected in the vertical through hole 21, one end of the connecting rib 18 with the hook is pre-embedded in the ground foundation 13, the connecting rib 18 passes upward through the vertical through hole 21 and the connecting hole 9 and extends into the clearance space 8 and is fastened by a nut 17, and a gasket is also provided between the pad body and the thickened layer.

[0048] In this method, the shim body 14 and the hooked connecting rib 18 are separate structures. These connecting ribs 18 are pre-embedded at predetermined positions during the ground foundation pouring. Then, the shim bodies are installed one by one, a workbench is placed, and finally, nuts are used for tightening. The hooks below the connecting ribs 18 enhance the bonding ability with the concrete. In this method, the upper section of the connecting rib 18 has external threads for connecting nuts.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A worktable for a numerically controlled machine tool, characterized in that, The device includes a workbench surface and a workbench perimeter wall located below the workbench surface. The bottom inner side of the workbench perimeter wall has an inner folded edge. Several supporting base plates are provided between the inner folded edges along the length of the workbench. Several transverse support plates and longitudinal support plates connected to the workbench perimeter wall are provided on the inner folded edges. Several independent chambers are formed by the alternation of the transverse support plates and the longitudinal support plates. At least one row of chambers has a diagonal support plate connected to adjacent transverse support plates and longitudinal support plates. The transverse support plates, the longitudinal support plates, and the diagonal support plates all extend upward and connect to the inner top wall of the workbench surface. Several clearance spaces are provided at intervals near the bottom of the outer side of the workbench perimeter wall. Each clearance space has a downward through-hole. The clearance spaces and the through-holes are used to connect the support pad assembly for the workbench.

2. The CNC machine table according to claim 1, characterized in that, The diagonal support plates are arranged in a row of chambers in the central area of ​​the workbench, and the multiple diagonal support plates are arranged in sequence to form a wave-shaped structure.

3. The CNC machine table of claim 1, wherein, The workbench perimeter wall, the horizontal support plate, and the diagonal support plate are provided with multiple sets of corresponding horizontal through holes.

4. The CNC machine table of claim 1, wherein, The workbench is also provided with several X-shaped reinforcing ribs on its peripheral wall, and each X-shaped reinforcing rib is respectively arranged in a cavity near the peripheral wall of the workbench.

5. The CNC machine table of claim 1, wherein, The inner side of the workbench perimeter wall is provided with inner columns at the locations where the clearance space is arranged, and the horizontal depth of the clearance space is greater than the thickness of the workbench perimeter wall.

6. The CNC machine tool worktable according to claim 1, characterized in that, Three to eight clearance spaces are arranged along the length direction, and one to three clearance spaces are arranged along the width direction.

7. A connection support structure of a table of a numerical control machine according to any one of claims 1 to 6, characterized in that, Each of the clearance spaces is provided with a shim assembly below it. The shim assembly is connected to the connection hole by bolts and / or nuts. The shim assembly is set on the ground foundation. The bottom of the peripheral wall of the workbench with the clearance space is provided with a thickened layer.

8. The connecting support structure of a worktable of a numerically controlled machine tool according to claim 7, characterized in that, The shim assembly includes a shim body, the bottom of which is provided with a connecting rib with a hook, the connecting rib being embedded in the ground foundation, the top of which is provided with a countersunk hole, the countersunk hole being provided corresponding to the connecting hole and connected by bolts, and a gasket being provided between the shim body and the thickened layer.

9. The connecting support structure of a worktable of a numerically controlled machine tool according to claim 7, characterized in that, The shim assembly includes a shim body with a vertical through hole. A connecting rib with a hook is connected to the vertical through hole. The connecting rib is embedded in the ground foundation. The connecting rib passes through the connecting hole and extends into the clearance space and is fastened by a nut. A gasket is also provided between the shim body and the thickened layer.

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