High-stability laser cutting equipment

Abstract

The utility model provides laser cutting equipment with high stability, and relates to the technical field of laser cutting, the laser cutting equipment comprises a machine tool part, a dust extraction part and a workbench, the machine tool part comprises a first wall plate, a second wall plate and a middle plate, and the dust extraction part comprises a dust extraction partition plate and a dust extraction opening; dust extraction pipelines are arranged in the first wall plate and the second wall plate; the workbench comprises a first side plate used for being connected with the first wall plate, a second side plate used for being connected with the second wall plate and a connecting plate used for connecting the first side plate and the second side plate. The first wallboard is provided with a first guide rail, and the second wallboard is provided with a second guide rail. According to the high-stability laser cutting equipment, the design specifications of the two workbenches are consistent, the workbenches are simple in structure, the overall lathe bed structure is small in occupied width, the dust suction parts are arranged on the lower sides of the workbenches, high-temperature waste residues at the workbenches are effectively prevented from damaging a machine tool, the whole laser cutting machine tool is slightly affected by heat, the lathe bed is not prone to deformation, and the working efficiency is improved. And the cutting efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, and in particular, to laser cutting equipment with high stability. Background Art

[0002] The application of laser cutting machines has developed rapidly in the domestic market in recent years, especially in the field of sheet metal cutting and processing. It has the advantages of high cutting accuracy, fast cutting speed, adaptability to various complex graphics, automatic typesetting, smooth incision, low processing cost, etc. It has replaced punching machines, flame cutting, plasma cutting and other equipment.

[0003] With the continuous updating of laser cutting technology, the demand for high-power laser cutting machines is increasing. Among them, the use of ground-track laser cutting machines is very extensive, which has brought great convenience to industrial production. The high-temperature molten iron filings generated by the cutting mechanism during the cutting process fall on the bed or the serrated support plate. This will cause the bed and the serrated support plate to deform over a long period of time. The serrated support plate can be replaced regularly as a consumable, but the bed as an integral component is expensive and cannot be replaced regularly. After long-term use, the laser cutting machine body may be deformed, affecting the laser cutting efficiency.

[0004] Therefore, in order to solve the above problems, it is necessary for us to design a reasonable and efficient dust extraction structure for laser cutting machines. Utility Model Content

[0005] The purpose of the utility model is to provide a laser cutting equipment with high stability. The two workbenches have the same design specifications, the workbench structure is simple, the overall bed structure occupies a small width, and a dust extraction unit is provided on the lower side of the workbench to effectively prevent high-temperature waste slag at the workbench from damaging the machine tool. The entire laser cutting machine tool is less affected by heat, the bed is not easily deformed, and the cutting efficiency is guaranteed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A laser cutting device with high stability comprises a machine tool part, a dust extraction part arranged on the machine tool part and a workbench located on the upper side of the dust extraction part, the machine tool part comprises a first wall panel, a second wall panel and an intermediate panel for connecting the first wall panel and the second wall panel, the dust extraction part comprises a dust extraction partition arranged on the intermediate panel and a dust extraction port arranged on the first wall panel or the second wall panel; the first wall panel and the second wall panel are both provided with dust extraction ducts for communicating with the dust extraction port; the workbench comprises a first side panel for connecting with the first wall panel, a second side panel for connecting with the second wall panel and a connecting plate for connecting the first side panel and the second side panel; the first wall panel is provided with a first guide rail for facilitating the sliding of the first side panel, and the second wall panel is provided with a second guide rail for facilitating the sliding of the first side panel.

[0008] As a preferred embodiment of the utility model, a motor part for driving the workbench to slide is arranged on the middle plate between the end of the first wall panel and the end of the second wall panel, and the motor part includes a motor body arranged on the middle plate, a driving wheel connected to the motor body, and a driving shaft connected to the driving wheel; a first driving wheel for connecting to the driving shaft and a first chain connected to the first driving wheel are arranged on the first wall panel, and a second driving wheel for connecting to the driving shaft and a second chain connected to the second driving wheel are arranged on the second wall panel.

[0009] As a preferred embodiment of the present invention, the number of the workbenches is two, and the specifications of the two workbenches are the same, and the height difference between the two workbenches is not less than 120 cm.

[0010] As a preferred embodiment of the present invention, both the first wall panel and the second wall panel are provided with a tightening cylinder for extending toward the workbench.

[0011] As a preferred embodiment of the present invention, a first traction block for connecting with the first chain is arranged on the first side plate; and a second traction block for connecting with the second chain is arranged on the second side plate.

[0012] As a preferred embodiment of the utility model, two first driven wheels for connecting with the first chain are arranged on the first wall panel; the height of the first driving wheel is lower than the height of the first driven wheel; two first tensioning wheels for connecting with the first chain are arranged on the first wall panel, and the height of the first tensioning wheels is between the height of the first driving wheel and the height of the first driven wheel; and an adjustment plate for adjusting the height of the first tensioning wheel is arranged on the first wall panel.

[0013] As a preferred embodiment of the present invention, a mounting bearing for supporting the driving shaft is provided on the connecting plate.

[0014] As a preferred embodiment of the present invention, the dust extraction partition includes a vertical partition arranged on the upper side of the middle plate and an inclined partition arranged on the side of the vertical partition, and the side of the vertical partition is provided with a mounting buckle for facilitating the installation of the inclined partition.

[0015] As a preferred embodiment of the present invention, a fire-resistant protective plate is arranged on the middle plate, and the vertical partition is arranged on the upper side of the fire-resistant protective plate.

[0016] As a preferred embodiment of the utility model, a transverse rib plate is provided in the first wall panel, and the dust extraction duct is located at the lower side of the transverse rib plate; an extension plate extending in the direction of the dust extraction duct is provided on the transverse rib plate, and the extension plate is welded to the dust extraction duct.

[0017] The beneficial effects of the high-stability laser cutting equipment of the utility model are: the two workbenches have consistent design specifications, the workbench structure is simple, the overall bed structure occupies a small width, and a dust extraction unit is provided at the lower side of the workbench, which effectively prevents high-temperature waste slag at the workbench from damaging the machine tool. The entire laser cutting machine tool is less affected by heat, the bed is not easy to deform, and the cutting efficiency is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a laser cutting device with high stability according to the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of two workbenches in one embodiment of a laser cutting device with high stability of the utility model;

[0020] Figure 3 This is a schematic structural diagram of a machine tool part (with a dust extraction part) in an embodiment of a laser cutting device with high stability according to the utility model;

[0021] Figure 4 It is a structural schematic diagram of a motor part in one embodiment of a laser cutting device with high stability according to the utility model from one viewing angle;

[0022] Figure 5 It is a structural schematic diagram of a motor part in one embodiment of a laser cutting device with high stability according to the utility model from another perspective;

[0023] Figure 6 This is a schematic structural diagram of a first wall panel in an embodiment of a laser cutting device with high stability according to the utility model;

[0024] Figure 7 This is a schematic structural diagram of a dust extraction duct at a first wall panel in an embodiment of a laser cutting device with high stability according to the utility model. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement and steps of the modules and steps described in these embodiments do not limit the scope of the present invention.

[0027] At the same time, it should be understood that for the convenience of description, the processes in the drawings are not just performed separately, but multiple steps are performed in an interlaced manner.

[0028] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the present utility model is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0030] Technologies, methods, and systems known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and systems should be considered part of the authorization specification.

[0031] Embodiment 1: Figures 1 to 7The figure is only one of the embodiments of the utility model, a laser cutting device with high stability, including a machine tool part 2, a dust extraction part 4 arranged on the machine tool part 2 and a workbench 1 located on the upper side of the dust extraction part 4, the machine tool part 2 includes a first wall panel 21, a second wall panel 22 and an intermediate panel 23 for connecting the first wall panel 21 and the second wall panel 22, the dust extraction part 4 includes a dust extraction partition 41 arranged on the intermediate panel 23 and a dust extraction port 42 arranged on the first wall panel 21 or the second wall panel 22; the first wall panel A dust extraction duct 24 for communicating with the dust extraction port 42 is provided in both the panel 21 and the second wall panel 22; the workbench 1 includes a first side panel 11 for connecting with the first wall panel 21, a second side panel 12 for connecting with the second wall panel 22, and a connecting plate 13 for connecting the first side panel 11 and the second side panel 12; a first guide rail 210 for facilitating the sliding of the first side panel 11 is provided on the first wall panel 21, and a second guide rail 220 for facilitating the sliding of the first side panel 11 is provided on the second wall panel 22.

[0032] The machine tool part 2 is the main body of the entire laser cutting machine. A workbench and a cutting head are set on the machine tool. The cutting head emits laser to cut the material on the workbench. There are two workbenches, and the two work platforms are movable. After the material on one work platform is cut, the work platform is moved away, and the other work platform is moved to the bottom of the cutting head. At this time, the cutting head cuts the material on the work platform under the cutting head, and the motor part 3 is the driving part used to drive the displacement of the work platform.

[0033] The workbench 1 is arranged between the first wall panel 21 and the second wall panel 22. There are two workbenches, one high and one low. Here, the workbench 1 includes a first side panel 11 for connecting with the first wall panel 21, a second side panel 12 for connecting with the second wall panel 21, and a connecting plate 13 for connecting the first side panel 11 and the second side panel 12. The first wall panel 21 is provided with a first guide rail 210 for facilitating the sliding of the first side panel 11, and the second wall panel 22 is provided with a second guide rail 220 for facilitating the sliding of the first side panel 11; so that the workbench 1 is only connected to the side of the first wall panel 21 close to the second wall panel 22 and the side of the second wall panel 22 close to the first wall panel 21.

[0034] It should be noted that the two workbenches 1 have the same specifications, and both workbenches 1 are only connected to the side of the wall panel. Therefore, the side structure of the workbench 1, the first wall panel 21 and the second wall panel 22 is very simple and compact, and does not occupy the extra width of the entire laser cutting machine. The overall bed structure is more compact and easy to transport.

[0035] Here, since the side structures of the first wall panel 21 and the second wall panel 22 are very simple and compact, the distance between the two guide rails used to facilitate the sliding of the two workbenches 1 is not affected by other factors. Within the allowable range of the side heights of the first wall panel 21 and the second wall panel 22, the distance between the two guide rails can be set larger. Generally speaking, the height difference between the two workbenches 1 is not less than 120 cm; it can meet the needs of most batch processing of plates, and when the plates are warped, they will not get stuck and interfere with the operation of the machine, making the laser cutting highly stable.

[0036] The workbench 1, i.e., the laser cutting platform, is arranged between the first wall panel 21 and the second wall panel 22. At the same time, the workbench 1 is also arranged on the upper side of the middle panel 23. Of course, after the plate on the workbench 1 is laser cut, high-temperature waste slag will fall and may fall on the middle panel 23, causing the middle panel 23 to deform, and even causing the first wall panel 21 and the second wall panel 22 to bend. The dust extraction part 4 can prevent the machine tool part 2 from deforming.

[0037] The dust extraction partition 41 includes a vertical partition 411 disposed on the upper side of the middle plate 23 and an inclined partition 412 disposed on the side of the vertical partition 411 .

[0038] Here, the vertical partition 411 divides the lower side of the entire bed structure into several areas. It should be noted that a vertical partition 411 is provided on the upper side of each middle plate 23, but the number of vertical partitions 411 is not less than the number of middle plates 23, and inclined partitions 412 are provided on both sides of the vertical partition 411. The distance between the lower end of the inclined partition 412 and the middle plate 23 is greater than the distance between the upper end of the inclined partition 412 and the middle plate 23, and the distance between the lower end of the inclined partition 412 and the middle plate 23 is not less than half of the width of the middle plate 23. When the vertical partition 411 is located in the middle of the middle plate 23, the lower end of the inclined partition 412 is located on the outside of the middle plate 23, so that the inclined partition 412 effectively guides the waste residue on the upper side of the middle plate 23 to the side of the middle plate 23, so that the waste residue will not fall directly on the middle plate 23.

[0039] In addition, the dust extraction port 42 is arranged on the side of the first wall panel 21 or the second wall panel 22; the height of the dust extraction port 42 is the same as the height of the dust extraction partition 41, so that the waste residue dropped on the dust extraction partition 41 can be sucked through the dust extraction port 42 to extract the high-temperature gas, thereby preventing the laser cutting machine tool structure from being deformed by heat for a long time.

[0040] Finally, the first wall panel 21 and the second wall panel 22 are both provided with a dust extraction duct 24 for communicating with the dust extraction port 42 , and a fan is provided in the dust extraction duct 24 for driving the dust extraction port 42 to extract smoke and dust.

[0041] The utility model discloses a laser cutting device with high stability. The two workbenches have the same design specifications and the workbench has a simple structure. The overall bed structure occupies a small width. A dust extraction unit is provided on the lower side of the workbench to effectively prevent high-temperature waste slag at the workbench from damaging the machine tool. The entire laser cutting machine tool is less affected by heat, the bed is not easily deformed, and the cutting efficiency is guaranteed.

[0042] Embodiment 2, still as Figures 1 to 7 The figure shown is only one of the embodiments of the present invention. On the basis of the first embodiment, in a laser cutting device with high stability, a motor part 3 for driving the workbench 1 to slide is arranged on the middle plate 23 between the end of the first wall panel 21 and the end of the second wall panel 22, and the motor part 3 includes a motor body 31 arranged on the middle plate 23, a driving wheel 32 connected to the motor body 31, and a driving shaft 33 connected to the driving wheel 32; a first driving wheel 211 for connecting to the driving shaft 33 and a first chain 212 connected to the first driving wheel 211 are arranged on the first wall panel 21, and a second driving wheel 221 for connecting to the driving shaft 33 and a second chain 222 connected to the second driving wheel 221 are arranged on the second wall panel 22.

[0043] The machine tool part 2 includes a first wall panel 21 and a second wall panel 22 on the left and right sides, and then an intermediate panel 23 is connected and arranged between the first wall panel 21 and the second wall panel 22 to connect and fix the first wall panel 21 and the second wall panel 22. There are multiple intermediate panels 23, so that the entire machine tool part 2 forms a semi-hollow structure with high structural strength, and the intermediate panel 23 is arranged at the ends of the first wall panel 21 and the second wall panel 22. It should be noted that the intermediate panel 23 with the motor part 1 is actually arranged at the ends of the first wall panel 21 and the second wall panel 22, or the motor part 3 is arranged on the intermediate panel 23 at the end of the machine tool part 2.

[0044] The motor part 3 is arranged on the middle plate 23 at the end of the machine tool part 2, so that the motor part 3 is located between the first wall plate 21 and the second wall plate 22, and does not occupy the entire width of the entire machine tool part 2. The motor part 3 includes a motor body 31 arranged on the middle plate 23, a driving wheel 32 connected to the motor body 31, and a driving shaft 33 connected to the driving wheel 32, and the driving shaft 33 is arranged parallel to the middle plate 23; the driving wheel 32 is connected to the motor shaft of the motor body 31, and the driving shaft 33 is arranged on both sides of the driving wheel 32, that is, when the motor body 31 is started, the driving shaft 33 can be driven to rotate on both sides.

[0045] Finally, the motor part 3 drives the workbench to move. The first wall panel 21 is provided with a first guide rail 210 for facilitating the sliding of the first side panel 11, and the second wall panel 22 is provided with a second guide rail 220 for facilitating the sliding of the first side panel 11. Of course, there are two first guide rails 210 and they are arranged in parallel up and down, so as to facilitate the sliding of the first side panels 11 of the two workbenches 2. Similarly, there are two second guide rails 220 and they are arranged in parallel up and down, so as to facilitate the sliding of the second side panels 21 of the two workbenches 2.

[0046] Here, the first wall panel 21 is provided with a first driving wheel 211 for connecting with the driving shaft 33 and a first chain 212 connected with the first driving wheel 211, and the second wall panel 22 is provided with a second driving wheel 221 for connecting with the driving shaft 33 and a second chain 222 connected with the second driving wheel 221; the first chain 212 is connected with the first side panel 11 of the working platform, and the first side panel 11 is provided with a first traction block 141 for connecting with the first chain 212; the second chain 222 is connected with the second side panel 21 of the working table, and the second side panel 12 is provided with a second traction block 142 for connecting with the second chain 222; so that the motor part 3 synchronously drives the two sides of the working platform to move synchronously.

[0047] Of course, there are two working platforms, which are respectively connected to the upper and lower sides of the chain, so that the two working platforms can be displaced alternately, that is, when one working platform moves forward from the lower position of the cutting head, the other working platform moves backward to the lower position of the cutting head.

[0048] The utility model discloses a laser cutting device with high stability, which has a simple structure and two worktables with consistent design specifications, thereby reducing the required width of the worktables and making the overall bed structure more compact. In addition, a motor for driving the displacement of the worktable is arranged on the inner side of a machine tool with a semi-hollow structure, thereby further reducing the occupied width of the overall bed structure, facilitating transportation and achieving high displacement stability of the worktable.

[0049] Embodiment three, still as Figures 1 to 7 The figure shown is only one embodiment of the present invention. Based on any of the above embodiments, in a laser cutting device with high stability, the first wall panel 21 is provided with two first driven wheels 213 for connecting with the first chain 212; the height of the first driving wheel 211 is lower than the height of the first driven wheel 213.

[0050] Here, two first tension wheels 214 for connecting with the first chain 212 are arranged on the first wall panel 21 , and the height of the first tension wheel 214 is located between the height of the first driving wheel 211 and the height of the first driven wheel 213 .

[0051] As an embodiment of the utility model, an adjustment plate 215 for adjusting the height of the first tensioning wheel 214 is provided on the first wall panel 21, and a vertically extending adjustment groove is provided on the adjustment plate 215. A part of the shaft of the first tensioning wheel 214 extends into the adjustment groove and is locked. For example, nuts are sleeved on both sides of the shaft and tightened to the side of the adjustment plate 215. When the height of the first tensioning wheel 214 needs to be adjusted, the shaft can be locked and released, and the height of the shaft can be adjusted manually or mechanically, and then the shaft can be locked again.

[0052] Of course, the first wall panel 21 and the second wall panel 22 are symmetrically arranged, that is, the second wall panel 22 is also provided with a second driven wheel 223 , a second tensioning wheel 224 and a second adjusting plate 225 .

[0053] Furthermore, the intermediate plate 23 is provided with a mounting bearing 231 for carrying the driving shaft 33, so that the driving shaft 33 can be long enough to drive the chains on the two wall panels synchronously.

[0054] Finally, the first driving wheel 211, the first driven wheel 213 and the first tensioning wheel 214 are all gears, and the first wall panel 21 and the second wall panel 22 are welded to the middle panel 23, so that the structural strength of the machine tool part 2 is guaranteed.

[0055] Embodiment 4, still as Figures 1 to 7 The figure shown is only one of the embodiments of the present invention. On the basis of any of the above embodiments, in a laser cutting device with high stability, the first wall panel 21 and the second wall panel 22 are both provided with a tightening cylinder 25 for extending toward the workbench 1; the number of the tightening cylinders 25 is four, and in fact there are four groups of tightening cylinders 25, with two groups on the first wall panel 21 and the second wall panel 22 respectively, which just tighten and fix the workbench 1 in the working state, and loading and unloading materials at the workbench 1 in the material changing state will not affect the cutting quality.

[0056] Of course, the machine tool part 2 is also connected to a sub-bed 24 for supporting the workbench 1 . The sub-bed 24 is located at the end of the machine tool part 2 , and the workbench 1 in the material changing state is just located on the sub-bed 24 .

[0057] It should be noted that each set of tightening cylinders 25 is provided with two tightening heads, which are respectively used to tighten the sides of the two workbenches 1, so that no matter which workbench 1 is in working state, the tightening cylinder 25 can tighten the workbench 1 (of course, one and only one workbench 1 is in working state, and the other workbench 1 is driven to the auxiliary bed 24 at the front end of the machine tool, not in front of the tightening head).

[0058] In addition, the workbench 1 is provided with a supporting grid 15 to reduce the heated area of ​​the workbench 1 when the plate on the workbench 1 is cut, thereby preventing the workbench 1 from being deformed due to heat.

[0059] Finally, as a preferred embodiment of the present invention, dust extraction ducts are provided in both the first wall panel 21 and the second wall panel 22 for extracting cutting fumes during laser cutting.

[0060] Embodiment 5, still as Figures 1 to 7 The figure shown is only one embodiment of the present invention. Based on any of the above embodiments, in a laser cutting device with high stability, the middle plate 23 is provided with a fire-resistant protective plate 232, and the vertical partition 311 is provided on the upper side of the fire-resistant protective plate 232.

[0061] The vertical partition 411 is arranged on the upper side of the fire-resistant protective plate 232 to further ensure that the middle plate 23 will not be affected by the heat conduction of the dust extraction partition 41.

[0062] As an embodiment of the utility model, the vertical partition 411 includes a first partition having the same extension direction as the middle plate 23 and a second partition perpendicular to the extension direction of the middle plate 23; and inclined partitions 412 are arranged on the sides of the first partition and the second partition, and the extension direction of the first partition is parallel to the extension direction of the middle plate 23. A first partition is arranged on each middle plate 23, but if the distance between the two middle plates 23 is far, several first partitions can be arranged between the first partitions on the two middle plates 23 to further cut and separate the bed structure; in addition, the second partition extends perpendicularly to the first partition, that is, the extension direction of the first partition is the same as the extension direction of the first wall panel 21, so as to further partition and divide the bed structure.

[0063] Here, the number of the dust extraction port 42 is at least one. After a plurality of vertical partitions divide the bed structure into a plurality of areas, at least one dust extraction port 42 is provided in each divided area.

[0064] As an embodiment of the utility model, a mounting buckle 413 is provided on the side of the vertical partition 411 for facilitating the installation of the inclined partition 412. The inclined partition 412 is detachably connected and can be removed and replaced at regular intervals.

[0065] As an embodiment of the present utility model, a transverse rib plate 216 is provided in the first wall panel 21 , and the dust extraction duct 24 is located at the lower side of the transverse rib plate 216 .

[0066] Here, an extension plate 217 extending toward the dust extraction duct 24 is provided on the transverse rib plate 216 , and the extension plate 217 is welded to the dust extraction duct 24 to further enhance the structural strength of the first wall panel 21 and the dust extraction duct 24 .

[0067] The utility model discloses a laser cutting device with high stability. The two workbenches have the same design specifications and the workbench has a simple structure. The overall bed structure occupies a small width. A dust extraction unit is provided on the lower side of the workbench to effectively prevent high-temperature waste slag at the workbench from damaging the machine tool. The entire laser cutting machine tool is less affected by heat, the bed is not easily deformed, and the cutting efficiency is guaranteed.

[0068] The present invention is not limited to the above specific implementation modes, and the present invention can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made to the above implementation modes based on the technical essence of the present invention shall be included in the protection scope of the present invention.

Claims

1. A laser cutting device with high stability, characterized in that: The invention comprises a machine tool part (2), a dust extraction part (4) arranged on the machine tool part (2), and a workbench (1) located on the upper side of the dust extraction part (4); the machine tool part (2) comprises a first wall panel (21), a second wall panel (22), and an intermediate panel (23) for connecting the first wall panel (21) and the second wall panel (22); the dust extraction part (4) comprises a dust extraction partition (41) arranged on the intermediate panel (23) and a dust extraction port (42) arranged on the first wall panel (21) or the second wall panel (22); and the first wall panel (21) and the second wall panel (22) are both provided with a dust extraction part (41). A dust extraction duct (24) is provided for communicating with the dust extraction port (42); the workbench (1) comprises a first side panel (11) for connecting with the first wall panel (21), a second side panel (12) for connecting with the second wall panel (22), and a connecting panel (13) for connecting the first side panel (11) and the second side panel (12); the first wall panel (21) is provided with a first guide rail (210) for facilitating the sliding of the first side panel (11), and the second wall panel (22) is provided with a second guide rail (220) for facilitating the sliding of the first side panel (11).

2. A laser cutting device with high stability according to claim 1, characterized in that: A motor unit (3) for driving the workbench (1) to slide is arranged on the middle plate (23) between the end of the first wall plate (21) and the end of the second wall plate (22); the motor unit (3) comprises a motor body (31) arranged on the middle plate (23), a driving wheel (32) connected to the motor body (31), and a driving shaft (33) connected to the driving wheel (32); a first driving wheel (211) for connecting to the driving shaft (33) and a first chain (212) connected to the first driving wheel (211) are arranged on the first wall plate (21); and a second driving wheel (221) for connecting to the driving shaft (33) and a second chain (222) connected to the second driving wheel (221) are arranged on the second wall plate (22).

3. The laser cutting device with high stability according to claim 1, characterized in that: The number of the workbenches (1) is two, and the specifications of the two workbenches (1) are the same, and the height difference between the two workbenches (1) is not less than 120 cm.

4. The laser cutting device with high stability according to claim 1, characterized in that: The first wall panel (21) and the second wall panel (22) are both provided with a tightening cylinder (25) for extending in the direction of the workbench (1).

5. The laser cutting device with high stability according to claim 2, characterized in that: The first side plate (11) is provided with a first traction block (141) for connecting to the first chain (212); and the second side plate (12) is provided with a second traction block (142) for connecting to the second chain (222).

6. The laser cutting device with high stability according to claim 2, characterized in that: The first wall panel (21) is provided with two first driven wheels (213) for connecting to the first chain (212); the height of the first driving wheel (211) is lower than the height of the first driven wheel (213); the first wall panel (21) is provided with two first tensioning wheels (214) for connecting to the first chain (212); the height of the first tensioning wheels (214) is between the height of the first driving wheel (211) and the height of the first driven wheel (213); and the first wall panel (21) is provided with an adjustment plate (215) for adjusting the height of the first tensioning wheels (214).

7. The laser cutting device with high stability according to claim 2, characterized in that: The intermediate plate (23) is provided with a mounting bearing (231) for supporting the driving shaft (33).

8. The laser cutting device with high stability according to claim 1, characterized in that: The dust extraction partition (41) comprises a vertical partition (411) arranged on the upper side of the middle plate (23) and an inclined partition (412) arranged on the side of the vertical partition (411); the side of the vertical partition (411) is provided with a mounting buckle (413) for facilitating the mounting of the inclined partition (412).

9. The laser cutting device with high stability according to claim 8, characterized in that: A fire-resistant protective plate (232) is provided on the middle plate (23), and the vertical partition plate (411) is provided on the upper side of the fire-resistant protective plate (232).

10. The laser cutting device with high stability according to claim 1, characterized in that: A transverse rib plate (216) is provided in the first wall panel (21), and the dust extraction pipe (24) is located at the lower side of the transverse rib plate (216); an extension plate (217) extending in the direction of the dust extraction pipe (24) is provided on the transverse rib plate (216), and the extension plate (217) is welded to the dust extraction pipe (24).

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