Machine tool body

Abstract

The utility model relates to the technical field of laser cutting, in particular to a machine tool body. The machine tool body comprises a plurality of machine tool body modules which are sequentially connected in the first direction. Each lathe bed module comprises a workbench, a supporting assembly and a waste discharging assembly, the workbenches and the waste discharging assemblies are arranged on the supporting assemblies, the workbenches are provided with supporting faces used for bearing workpieces, the waste discharging assemblies are arranged on one sides of the workbenches in the direction opposite to the orientation of the supporting faces, and the waste discharging assemblies are arranged on the other sides of the workbenches in the direction opposite to the orientation of the supporting faces. The waste discharging assembly is used for bearing and conveying waste falling from the workbench. The machine tool body is divided into a plurality of independent machine tool body modules, and the independent and complete working table, the supporting assembly and the waste discharging assembly are integrated on the machine tool body modules, so that only the damaged machine tool body modules need to be replaced after the machine tool body is locally damaged, and the functions of the other machine tool body modules cannot be influenced when the damaged machine tool body modules are replaced; the difficulty of replacing the lathe bed module can be reduced, so that the shutdown replacement time is shortened, and the production efficiency of laser cutting is improved.

Description

Technical Field

[0001] This application relates to the technical field of laser cutting, and particularly to a machine tool bed body. Background Art

[0002] Laser cutting is to emit laser from a laser, and through an optical path system, it is focused into a laser beam with a high power density. The laser beam irradiates the surface of the workpiece, making the part of the workpiece in contact with the laser beam reach the melting point or boiling point. At the same time, the high-pressure gas coaxial with the laser beam blows away the melted or vaporized metal. With the relative movement of the laser beam and the workpiece, finally a cut is formed on the workpiece, so as to achieve the purpose of cutting. During the actual use of a laser cutting machine tool, the afterglow of the laser beam after cutting through the workpiece and the heat generated during processing will irradiate the machine tool bed body below the workpiece or the accessories on the machine tool bed body, causing local thermal deformation or even burning through of the machine tool bed body. The damaged machine tool bed body will result in low cutting accuracy.

[0003] In the related art, after a part of the machine tool bed body is damaged, it is necessary to stop the machine to replace the entire machine tool bed body or replace the accessories on the machine tool bed body. In a large laser cutting machine, the machine tool bed body or the accessories on the machine tool bed body are relatively large in volume, resulting in a long downtime for replacement, which will affect the production efficiency of laser cutting. Summary of the Utility Model

[0004] The purpose of the embodiments of this application is to provide a machine tool bed body, aiming to improve the production efficiency of laser cutting.

[0005] To achieve the above purpose, the technical solution adopted in the embodiments of this application is: A machine tool bed body includes a plurality of bed body modules. All the bed body modules are arranged in sequence in a first direction, and two adjacent bed body modules are connected. Each bed body module includes a workbench, a support assembly, and a waste discharging assembly. Both the workbench and the waste discharging assembly are arranged on the support assembly. The workbench has a support surface for carrying a workpiece. In the direction away from the support surface, the waste discharging assembly is arranged on one side of the workbench, and the waste discharging assembly is used for carrying and transporting the waste falling from the workbench.

[0006] The beneficial effect of the machine tool bed body provided by this application is that by splitting the machine tool bed body into a plurality of independent bed body modules, and since each bed body module is integrated with an independent and complete workbench, support assembly, and waste discharging assembly, only the damaged bed body module needs to be replaced after a part of the machine tool bed body is damaged, and the functions of the other bed body modules will not be affected when replacing the damaged bed body module. This can reduce the difficulty of replacing the bed body module, shorten the downtime for replacement, and improve the production efficiency of laser cutting.

[0007] In some embodiments, the waste discharging assembly includes a first waste discharging plate disposed opposite to the workbench. The first waste discharging plate has a first end and a second end disposed opposite to each other, and the second end is located on a side of the first end away from the workbench.

[0008] In some embodiments, the two sets of waste discharging assemblies are respectively a first waste discharging assembly and a second waste discharging assembly. The first waste discharging plate in the first waste discharging assembly is disposed opposite to the first waste discharging plate in the second waste discharging assembly. The distance between the second ends of the first waste discharging plates in the first waste discharging assembly and the second waste discharging assembly is a first distance, and the distance between the first ends of the first waste discharging plates in the first waste discharging assembly and the second waste discharging assembly is a second distance. The first distance is less than the second distance.

[0009] In some embodiments, the two sets of waste discharging assemblies are spaced apart in the first direction. The waste discharging assembly further includes a second waste discharging plate disposed opposite to the workbench. The second waste discharging plate has a third end and a fourth end disposed opposite to each other in the first direction. The fourth end is located on a side of the third end away from the workbench, and the fourth end is located on a side of the third end away from the first waste discharging plate.

[0010] In some embodiments, the waste discharging assembly further includes a protection plate covering the surfaces of the first waste discharging plate and the second waste discharging plate facing the workbench.

[0011] In some embodiments, limiting grooves with their notches facing the workbench are provided on both the first waste discharging plate and the second waste discharging plate, and the protection plate is disposed in the limiting grooves.

[0012] In some embodiments, the protection plate protrudes from the notch of the limiting groove, or the protection plate is flush with the notch of the limiting groove.

[0013] In some embodiments, the support assembly includes two support beams and a plurality of support columns. In a direction opposite to the orientation of the support surface, the support columns are located on one side of the support beams, and each support beam is connected to at least two support columns. The workbench is disposed on the support beams, and the waste discharging assembly is disposed on the support columns.

[0014] In some embodiments, the machine tool bed body further includes a connecting plate detachably connected to two adjacent support beams in the first direction.

[0015] In some embodiments, the support assembly further includes a height adjustment assembly, and at least one such height adjustment assembly is provided at the end of each support column facing away from the support beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following-described drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of a machine tool bed in one embodiment of the present application;

[0018] Figure 2 is Figure 1 a schematic structural diagram of the support assembly and the waste discharge assembly in the shown machine tool bed;

[0019] Figure 3 is Figure 1 a schematic structural diagram of the waste discharge assembly in the shown machine tool bed.

[0020] REFERENCE NUMERALS:

[0021] 1, workbench;

[0022] 2, support assembly; 21, support beam; 22, support column; 23, height adjustment assembly; 231, fastening nut; 232, bolt; 233, foot pad;

[0023] 3, waste discharge assembly; 31, first waste discharge plate; 311, first connecting portion; 312, first guiding portion; 313, first stopping portion; 32, second waste discharge plate; 321, second connecting portion; 322, second guiding portion; 323, second stopping portion; 33, protective plate; 34, waste discharge plate support frame; 341, side plate; 342, bottom frame;

[0024] 4, connecting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the purpose, technical solutions and advantages of the present application clearer, the following will further describe the present application in detail in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0028] References to "one embodiment", "some embodiments" or "an embodiment" in the description of the present application mean that a particular feature, structure or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments" etc. that appear in different places in this specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. In addition, in one or more embodiments, specific features, structures or characteristics can be combined in any suitable manner.

[0029] The light beam irradiates the surface of the workpiece, causing the part of the workpiece in contact with the laser beam to reach the melting point or boiling point. At the same time, the high-pressure gas coaxial with the laser beam blows away the melted or vaporized metal. As the relative position of the laser beam and the workpiece moves, a cut is finally formed on the workpiece, thus achieving the purpose of cutting. During the actual use of the laser cutting machine tool, the afterglow of the laser beam after cutting through the workpiece and the heat generated during processing will irradiate the machine tool bed under the workpiece or the accessories on the machine tool bed, causing local heat deformation or even burning through of the machine tool bed. The damaged machine tool bed will result in lower cutting accuracy.

[0030] In the related art, after local damage to the machine tool bed, it is necessary to stop the machine to replace the entire machine tool bed or replace the accessories on the machine tool bed. In large laser cutting machines, the machine tool bed or the accessories on the machine tool bed are relatively large in volume, resulting in a long downtime for replacement, which will affect the production efficiency of laser cutting.

[0031] In view of the above problems, the embodiments of the present application provide a machine tool bed, aiming to improve the production efficiency of laser cutting.

[0032] In order to illustrate the technical solutions of the present application, the following will be described in conjunction with specific drawings and embodiments.

[0033] Please refer toFigure 1 , embodiments of the present application provide a machine tool bed body, including a plurality of bed body modules. All the bed body modules are arranged in sequence in the first direction, and two adjacent bed body modules are connected. Each bed body module includes a workbench 1, a support assembly 2, and a waste discharge assembly 3. The workbench 1 and the waste discharge assembly 3 are both arranged on the support assembly 2. The workbench 1 has a support surface for carrying workpieces. In the direction away from the support surface, the waste discharge assembly 3 is arranged on one side of the workbench 1, and the waste discharge assembly 3 is used for carrying and transporting the waste materials falling from the workbench 1.

[0034] By splitting the machine tool bed body into multiple independent bed body modules, and since the workbench 1, the support assembly 2, and the waste discharge assembly 3 are integrated and complete on each bed body module, only the damaged bed body module needs to be replaced after a local damage of the machine tool bed body. Moreover, when replacing the damaged bed body module, the functions of the remaining bed body modules will not be affected, which can reduce the difficulty of replacing the bed body module, shorten the downtime for replacement, and improve the production efficiency of laser cutting.

[0035] It should be noted that the first direction is the X direction in the figure, and the orientation of the support surface is the Z direction in the figure.

[0036] In some embodiments, the workbench 1 includes a plurality of support members spaced apart in the first direction. The surfaces of the plurality of support members facing the Z direction are combined to form a bearing surface so that the plurality of support members cooperate with each other to support the workpiece; the gaps between adjacent support members allow the waste materials generated by cutting the workpiece to pass through, so that the waste materials fall on the waste discharge assembly 3.

[0037] Please refer to Figure 1 , optionally, the support member is a rack plate, and the tooth crest of the rack plate faces the Z direction and is used for supporting the workpiece.

[0038] Optionally, the support member is a support round bar or a support round bar.

[0039] Please refer to Figure 2 and Figure 3 , in some embodiments, the waste discharge assembly 3 includes a first waste discharge plate 31 disposed opposite to the workbench 1. The first waste discharge plate 31 has a first end and a second end disposed opposite to each other, and the second end is located on the side of the first end away from the workbench 1.

[0040] In the above embodiments, in the direction opposite to the Z direction, the first waste discharge plate 31 is disposed on one side of the workbench 1, and the first waste discharge plate 31 is inclined relative to the workbench 1, so that the waste materials falling from the workbench 1 fall on the first waste discharge plate 31, and the waste materials can slide down from the first waste discharge plate 31, which is convenient for collecting the waste materials.

[0041] Optionally, when using the machine tool bed of the embodiment of the present application to cut a workpiece, the waste collection cart can be placed on the side of the first waste discharge plate 31 away from the workbench 1, and the waste collection cart is arranged at the second end of the first waste discharge plate 31, so that the waste sliding down from the first waste discharge plate 31 is centrally collected into the waste collection cart.

[0042] Please refer to Figure 2 , in some embodiments, there are two sets of waste discharge assemblies 3, and the two sets of waste discharge assemblies 3 are arranged at intervals. The two sets of waste discharge assemblies 3 are respectively a first waste discharge assembly and a second waste discharge assembly. The first waste discharge plate 31 in the first waste discharge assembly is arranged opposite to the first waste discharge plate 31 in the second waste discharge assembly. The distance between the second end of the first waste discharge plate 31 in the first waste discharge assembly and the second end of the first waste discharge plate 31 in the second waste discharge assembly is a first distance, and the distance between the first end of the first waste discharge plate 31 in the first waste discharge assembly and the first end of the first waste discharge plate 31 in the second waste discharge assembly is a second distance, and the first distance is less than the second distance.

[0043] In the above embodiment, the workbench 1, the first waste discharge plate 31 in the first waste discharge assembly and the first waste discharge plate 31 in the second waste discharge assembly can enclose to form a waste collection groove, and the groove opening of the waste collection groove is formed between the second end of the first waste discharge plate 31 in the first waste discharge assembly and the second end of the first waste discharge plate 31 in the second waste discharge assembly; the first distance is less than the second distance, so that the groove opening of the waste collection groove is closed, so as to guide the waste to the groove opening of the waste collection groove and make the waste fall through the groove opening of the waste collection groove, which is convenient for centralized collection of the waste.

[0044] When using the machine tool bed of the embodiment of the present application to cut a workpiece, the waste collection cart can be placed on the side of the first waste discharge plate 31 away from the workbench 1, and the waste collection cart is arranged at the second end of the first waste discharge plate 31 in the first waste discharge assembly and the second end of the first waste discharge plate 31 in the second waste discharge assembly (the groove opening of the above waste collection groove), so that the waste sliding down from the two first waste discharge plates 31 can be centrally collected into the waste collection cart.

[0045] Please refer to Figure 2 and Figure 3 , in some embodiments, the two sets of waste discharge assemblies 3 are arranged at intervals in the first direction. The waste discharge assembly 3 further includes a second waste discharge plate 32 arranged opposite to the workbench 1. The second waste discharge plate 32 has a third end and a fourth end arranged opposite to each other in the first direction. The fourth end is located on the side of the third end away from the workbench 1 and on the side of the third end away from the first waste discharge plate 31.

[0046] Through the above-mentioned setting, the inclination direction of the second row of waste plates 32 is opposite to the inclination direction of the first row of waste plates 31. In the machine tool bed, the second rows of waste plates 32 in the two adjacent bed modules will be arranged relative to each other, and the second rows of waste plates 32 in the above-mentioned two bed modules and the workbenches 1 in the two bed modules can be enclosed to form a waste collection trough to facilitate the directional collection of waste.

[0047] Please refer to Figure 3 In each set of waste discharge components 3, the first end of the first row of waste plates 31 and the third end of the second row of waste plates 32 are tightly connected to prevent the waste falling from the workbench 1 from falling through the gap between the first end and the third end, thereby facilitating the directional collection of all waste.

[0048] Please refer to Figure 3 In some embodiments, the waste discharge assembly 3 further includes a protective plate 33 , which covers the surface of the first waste discharge plate 31 facing the workbench and the surface of the second waste discharge plate 32 facing the workbench 1 .

[0049] Through the above arrangement, the protection plate 33 can prevent the first row of waste boards 31 and the second row of waste boards 32 from directly contacting the laser beam, so as to avoid the laser beam from damaging the first row of waste boards 31 and the second row of waste boards 32 .

[0050] Optionally, the protective plate 33 may be a cement board, an acrylic board or a glass board.

[0051] Please refer to Figure 3 In some embodiments, both the first row of waste boards 31 and the second row of waste boards 32 are provided with limiting grooves with the notches facing the workbench 1, and the protective plates 33 are arranged in the limiting grooves.

[0052] Since the first row of waste plates 31 and the second row of waste plates 32 are both inclined plates, when the protective plate 33 is directly placed on the first row of waste plates 31 and the second row of waste plates 32, the protective plate 33 will slide down from the first row of waste plates 31 and the second row of waste plates 32. The provision of the limiting groove can prevent the anti-slip plate from sliding down from the first row of waste plates 31 and the second row of waste plates 32.

[0053] Please refer to Figure 3 In some embodiments, the first waste plate row 31 includes a first connecting portion 311, a first guide portion 312, and a first stop portion 313. The first connecting portion 311 is connected to the end of the first guide portion 312 closer to the workbench 1, and the first stop portion 313 is connected to the end of the first guide portion 312 facing away from the workbench 1. The first connecting portion 311, the first guide portion 312, and the first stop portion 313 together form a limiting groove. When the protective plate 33 is placed in the limiting groove, the first stop portion 313 can limit the position of the protective plate 33 and prevent the protective plate 33 from sliding off the first waste plate row 31.

[0054] It should be noted that the above-mentioned first end is the end of the first connecting portion 311 away from the first guiding portion 312, and the above-mentioned second end is the end of the first stopping portion 313 away from the first guiding portion 312.

[0055] Please refer to Figure 3 , in some embodiments, the second waste plate 32 includes a second connecting portion 321, a second guiding portion 322, and a second stopping portion 323. The second connecting portion 321 is connected to the end of the second guiding portion 322 close to the workbench 1, the second stopping portion 323 is connected to the end of the second guiding portion 322 away from the workbench 1, and the second connecting portion 321, the second guiding portion 322, and the second stopping portion 323 enclose a limiting groove. When the protective plate 33 is placed in the limiting groove, the second stopping portion 323 can limit the position of the protective plate 33 to prevent the protective plate 33 from sliding off the second waste plate 32.

[0056] It should be noted that the above-mentioned third end is the end of the second connecting portion 321 away from the second guiding portion 322, and the above-mentioned fourth end is the end of the second stopping portion 323 away from the second guiding portion 322.

[0057] Please refer to Figure 3 , in some embodiments, the protective plate 33 protrudes from the notch of the limiting groove, or the protective plate 33 is flush with the notch of the limiting groove.

[0058] Through the above settings, it is possible to prevent the first stopping portion 313 and the second stopping portion 323 from stopping the waste material sliding off the protective plate 33, so as to facilitate the sliding of the waste material.

[0059] Please refer to Figure 2 , in some embodiments, the waste discharging assembly 3 further includes a waste plate support frame 34. The waste plate support frame 34 is connected to the support assembly 2, and both the first waste plate 31 and the second waste plate 32 are arranged on the waste plate support frame 34.

[0060] Through the above settings, the strength of the first waste plate 31 and the second waste plate 32 can be enhanced to prevent the first waste plate 31 and the second waste plate 32 from deforming.

[0061] Please refer to Figure 2 and Figure 3 , in some embodiments, the waste plate support frame 34 includes a plurality of side plates 341. The plurality of side plates 341 are connected end to end in sequence, and the plurality of side plates 341 enclose a through hole extending in the Z direction. The first waste plate 31 and the second waste plate 32 are connected to the side plates 341, and the first waste plate 31 and the second waste plate 32 cooperate to cover the hole opening of the through hole facing the workbench 1.

[0062] In the above embodiment, the first row of waste plates 31, the second row of waste plates 32 and the waste plate support frame 34 enclose a cavity, and the cavity can communicate with a smoking system or a blowing system, facilitating the removal of the smoke generated during the cutting process.

[0063] Please refer to Figure 3 , in some embodiments, the waste plate support frame 34 includes a bottom frame 342, the bottom frame 342 is connected to the side plate 341, and the bottom frame 342 is disposed at the orifice of the through hole facing away from the workbench 1.

[0064] In the above embodiment, the bottom frame 342 can enhance the stability of the connection relationship between the side plates 341, so as to enhance the stability of the waste plate support frame 34.

[0065] In some embodiments, the waste plate support frame 34 includes a pillar, one end of the pillar is connected to the bottom frame 342, and the other end of the pillar is connected to both the first row of waste plates 31 and the second row of waste plates 32.

[0066] In the above embodiment, the pillar can support the first row of waste plates 31 and the second row of waste plates 32, so as to enhance the stability of the waste discharging assembly 3.

[0067] Please refer to Figure 2 , in some embodiments, the support assembly 2 includes two support beams 21 and a plurality of support columns 22. In the direction opposite to the orientation of the support surface, the support columns 22 are located on one side of the support beams 21, and each support beam 21 is connected to at least two support columns 22. The workbench 1 is disposed on the support beams 21, and the waste discharging assembly 3 is disposed on the support columns 22.

[0068] In the above embodiment, the two support beams 21 are spaced apart in the Y direction in the figure, the axial direction of the support beams 21 is parallel to the X direction in the figure, and the support columns 22 connected to the same support beam 21 are spaced apart in the X direction. Through the above settings, it is convenient for the waste collection trolley to move between adjacent support columns 22 to the lower part of the workbench 1.

[0069] Please refer to Figure 2 , in some embodiments, the machine tool bed body further includes a connecting plate 4, and the connecting plate 4 is detachably connected to two adjacent support beams 21 in the first direction.

[0070] Through the above settings, two adjacent bed body modules are connected to each other by means of the connecting plate 4, so that the bed body modules are combined into a whole, making the structure of the machine tool bed body more stable.

[0071] Please refer to Figure 2 , first screw holes are provided at both ends of the support beam 21, second screw holes are provided on the connecting plate 4, and the connecting plate 4 and the support beam 21 can be connected by screwing screws into the second screw holes and the second screw holes in sequence.

[0072] Please refer to Figure 2 , in some embodiments, the support assembly 2 further includes a height adjustment assembly 23, and at least one height adjustment assembly 23 is provided at the end of each support column 22 facing away from the support beam 21.

[0073] With the above arrangement, the height adjustment assembly 23 can adjust the distance between the support column 22 and the ground to adjust the height and levelness of the workbench 1. And when a plurality of bed modules are spliced together, by adjusting the height adjustment assembly 23, the workbenches 1 in the plurality of bed modules can be made flush.

[0074] Please refer to Figure 2 , in some embodiments, the height adjustment assembly 23 includes a fastening nut 231, a bolt 232 and a foot pad 233. The fastening nut 231 is connected to the support column 22, the bolt 232 is threadedly connected to the fastening nut 231, the end of the bolt 232 facing away from the support column 22 is connected to the foot pad 233, and by rotating the foot pad 233, the bolt 232 can be driven to rotate relative to the fastening nut 231 to adjust the length of the bolt 232 located between the fastening nut 231 and the foot pad 233, so as to adjust the height of the support column 22.

[0075] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A machine tool bed, characterized in that, It includes multiple bed modules, all of which are arranged in sequence in a first direction, and two adjacent bed modules are connected. The bed module includes a workbench, a support assembly and a waste discharge assembly. The workbench and the waste discharge assembly are both arranged on the support assembly. The workbench has a support surface for carrying a workpiece. In the direction away from the support surface, the waste discharge assembly is arranged on one side of the workbench, and the waste discharge assembly is used to carry and transport waste falling from the workbench.

2. The machine tool bed according to claim 1, characterized in that, The waste discharge assembly includes a first waste discharge plate arranged opposite to the workbench, the first waste discharge plate has a first end and a second end arranged opposite to each other, and the second end is located on a side of the first end away from the workbench.

3. The machine tool bed according to claim 2, characterized in that, The waste discharge components are provided with two groups, and the two groups of waste discharge components are arranged at intervals. The two groups of waste discharge components are respectively a first waste discharge component and a second waste discharge component. The first waste discharge plate in the first waste discharge component is arranged opposite to the first waste discharge plate in the second waste discharge component. The distance between the second end of the first waste discharge plate in the first waste discharge component and the second end of the first waste discharge plate in the second waste discharge component is a first distance. The distance between the first end of the first waste discharge plate in the first waste discharge component and the first end of the first waste discharge plate in the second waste discharge component is a second distance. The first distance is smaller than the second distance.

4. The machine tool bed according to claim 3, characterized in that, The two groups of waste discharge components are spaced apart in the first direction, and the waste discharge components also include a second waste discharge plate arranged opposite to the workbench, the second waste discharge plate having a third end and a fourth end arranged opposite to each other in the first direction, the fourth end being located on the side of the third end facing away from the workbench, and the fourth end being located on the side of the third end facing away from the first waste discharge plate.

5. The machine tool bed according to claim 4, characterized in that, The waste discharge assembly further includes a protection plate, which covers a surface of the first waste discharge plate facing the workbench and a surface of the second waste discharge plate facing the workbench.

6. The machine tool bed according to claim 5, wherein, The first row of waste plates and the second row of waste plates are both provided with limiting grooves with notches facing the workbench, and the protective plates are arranged in the limiting grooves.

7. The machine tool bed according to claim 6, characterized in that, The protective plate protrudes from the notch of the limiting groove, or the protective plate is flush with the notch of the limiting groove.

8. The machine tool bed according to any one of claims 1 to 7, characterized in that, The support assembly includes two support beams and multiple support columns. The support columns are located on one side of the support beams in the direction opposite to the support surface, and each of the support beams is connected to at least two support columns. The workbench is arranged on the support beams, and the waste discharge assembly is arranged on the support columns.

9. The machine tool bed according to claim 8, wherein The machine tool bed further includes a connecting plate, which is detachably connected to two adjacent support beams in the first direction.

10. The machine tool bed according to claim 8, characterized in that, The support assembly further includes a height adjustment assembly, and at least one height adjustment assembly is provided at the end of each support column away from the support beam.

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