Track beam structure and laser cutting device

Abstract

The utility model discloses a track beam structure and a laser cutting device. The track beam structure comprises a base and a track beam body. The track beam structure comprises a base and a track beam main body, the track beam main body is divided into multiple sections, the multiple sections of track beam main bodies are sequentially connected in the length direction of the track beam structure and fixedly connected to the base, the track beam main body comprises I-shaped steel and two sections of channel steel, and the two sections of channel steel are symmetrically welded to the two sides of the I-shaped steel in the width direction of the track beam structure. The track beam structure at least can solve the problems that a track beam of a laser cutting device is insufficient in rigidity and unreliable in connection.

Description

Technical Field

[0001] The utility model relates to the technical field of track beams, and more specifically, to a track beam structure and a laser cutting device. Background Art

[0002] Currently, laser cutting devices are increasingly pursuing indicators such as large cutting width, high speed, and high acceleration. For the track beams that carry such laser cutting devices, they often need to have high rigidity. Traditional track beams are generally manufactured by aluminum extrusion. Since the cost of aluminum extrusion track beams is relatively low, they are highly favored in small-span laser cutting machines. However, due to certain defects in the materials of aluminum extrusion track beams, when the span of the track beam exceeds a certain range, the stiffness of the track beam will significantly decrease, which will directly affect the processing quality of the laser cutting device. Therefore, the machine tool track beams of large-format laser cutting devices are often made of carbon steel plates welded together. Although using carbon steel materials can ensure the overall stiffness of the track beam, the weight of the track beam increases significantly, which cannot meet the requirements of lightweight. In addition, the structure of the track beam structure in the prior art has certain defects. There are not only many welds, but also poor bending resistance, torsion resistance, and vibration resistance, resulting in unreliable connections between the track beams. Summary of the Utility Model

[0003] The main purpose of the present utility model is to provide a track beam structure and a laser cutting device, which can at least solve the problems of insufficient rigidity and unreliable connection of the track beam of the laser cutting device.

[0004] According to one aspect of the present utility model, a track beam structure is provided, including:

[0005] A base;

[0006] A track beam body, the track beam body is composed of multiple segments, and the multiple segments of the track beam body are sequentially connected along the length direction of the track beam structure and fixedly connected to the base. The track beam body includes an I-beam and two channel steels. Along the width direction of the track beam structure, the two channel steels are symmetrically welded to both sides of the I-beam.

[0007] Furthermore, the I-beam includes a first horizontal section, a second horizontal section, and a vertical section. The first horizontal section is arranged at the top of the vertical section, and the second horizontal section is arranged at the bottom of the vertical section and is welded to the base;

[0008] The channel steel includes a bottom plate section, a first end plate section and a second end plate section. The bottom plate section is arranged perpendicular to the base and is respectively welded to the end of the first horizontal section and the end of the second horizontal section. The first end plate section is arranged on the side of the bottom plate section away from the base and is located on the side of the bottom plate section away from the I-beam. The second end plate section is arranged on the side of the bottom plate section close to the base and is welded to the base, and the second end plate section is located on the side of the bottom plate section away from the I-beam.

[0009] Furthermore, at least one first reinforcing rib is welded between the bottom plate segment and the vertical segment, and the first reinforcing rib is arranged parallel to the base.

[0010] Furthermore, at least one second reinforcing rib is provided between the first end plate segment and the second end plate segment, and the second reinforcing rib is perpendicular to the base and is welded to the bottom plate segment.

[0011] Furthermore, the weld between the I-beam and the channel steel, the weld between the I-beam and the base, and the weld between the channel steel and the base are all intermittent damping welds.

[0012] Furthermore, the track beam structure also includes a connecting block, and the connecting block is connected between two adjacent sections of the track beam body.

[0013] Furthermore, the ends of two adjacent sections of the track beam body that are close to each other are both provided with scraping surfaces, and the connecting block is in contact with the scraping surface and is fixedly connected to the track beam body through a locking piece.

[0014] Furthermore, the scraping surface is provided on the channel steel, and the locking piece penetrates the connecting block and the bottom of the channel steel along the thickness direction of the connecting block to fix the connecting block to the channel steel.

[0015] Furthermore, the locking member includes a connecting bolt or a connecting screw.

[0016] On the other hand, the present application also mentions a laser cutting device, which includes the above-mentioned track beam structure.

[0017] In the present application, each rail guide beam body is welded by I-beam and channel steel. The welded composite structure of I-beam and two sections of channel steel can effectively improve the rigidity of the rail beam body. In actual production, multiple sections of rail beam bodies are sequentially fixedly connected to the base to assemble the rail beam structure in this embodiment. The rail beam structure of the present application has the advantages of simple structure and good stability.

[0018] In addition, the track beam structure of the present application is welded in a way that two channel steels are symmetrically welded on both sides of the I-beam, making the stress distribution of the track beam structure more uniform during use and improving the reliability of the connection between various parts of the track beam structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and form a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0020] Figure 1 is a structural diagram of the track beam structure disclosed in the embodiment of the present invention from the first perspective;

[0021] Figure 2 is a cross-sectional view of the track beam structure disclosed in the embodiment of the present invention from the second perspective;

[0022] Figure 3 is a structural diagram of the track beam structure disclosed in the embodiment of the present invention from the third perspective.

[0023] Among them, the above-mentioned drawings include the following reference numerals:

[0024] 10, base; 20, track beam main body; 21, I-beam; 211, first horizontal section; 212, second horizontal section; 213, vertical section; 214, first reinforcing rib; 22, channel steel; 221, bottom plate section; 222, first end plate section; 223, second end plate section; 224, second reinforcing rib; 225, scraping surface; 30, connecting block; 40, locking member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for ease of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0028] In order to solve the problems of insufficient rigidity and unreliable connection of the track beam of the laser cutting device, according to an embodiment of the present application, a track beam structure is provided. The track beam structure of the present application will be introduced in detail below with reference to the drawings.

[0029] See Figures 1 to 3 As shown, according to an embodiment of the present utility model, a track beam structure is provided, and the track beam structure includes a base 10 and a track beam main body 20.

[0030] Among them, the track beam main body 20 is in multiple sections, and the multiple sections of the track beam main body 20 are sequentially connected and fixedly connected to the base 10 along the length direction of the track beam structure (i.e., Figure 1 the y direction in Figure 2 ), and the track beam main body 20 includes an I-beam 21 and two channel steels 22. Along the width direction of the track beam structure ( Figure 2 the x direction in Figure 2 ), the two channel steels 22 are symmetrically welded to both sides of the I-beam 21.

[0031] In the present application, each track guide beam main body 20 is formed by welding an I-beam 21 and a channel steel 22. The welded combination structure of the I-beam 21 and the two channel steels 22 can effectively improve the rigidity of the track beam main body 20. During actual production, the multiple sections of the track guide beam main bodies 20 are sequentially fixedly connected to the base 10, and the track guide beam structure in this embodiment can be assembled. The track beam structure of the present application has the advantages of simple structure and good stability.

[0032] In addition, the track beam structure of the present application makes the stress distribution more uniform during use by welding the two end channel steels 22 symmetrically to both sides of the I-beam 21, and can improve the reliability of the connection between the various parts of the track beam structure.

[0033] The base 10 of the present application can be a whole long strip structure or a segmented structure. When the base 10 is a whole long strip structure, the operator can directly fix the assembled track beam body 20 to the base 10. When the base 10 is a segmented structure, the operator can arrange the segments of the base 10 at a certain distance along the length direction of the track beam body 20 (i.e., the length direction of the track beam structure) and fix the segments of the base 10 to the track beam body 20, thereby forming the track beam structure of the present application.

[0034] Further, see Figure 1 and Figure 2 As shown, the I-beam 21 includes a first horizontal section 211, a second horizontal section 212 and a vertical section 213. The first horizontal section 211 is arranged at the top of the vertical section 213, and the second horizontal section 212 is arranged at the bottom of the vertical section 213 and is welded to the base 10. The channel steel 22 includes a bottom plate section 221, a first end plate section 222 and a second end plate section 223. The bottom plate section 221 is arranged perpendicular to the base 10 and is welded to the end of the first horizontal section 211 and the end of the second horizontal section 212 respectively. The first end plate section 222 is arranged at the side of the bottom plate section 221 away from the base 10 and is located at the side of the bottom plate section 221 away from the I-beam 21. The second end plate section 223 is arranged at the side of the bottom plate section 221 close to the base 10 and is welded to the base 10, and the second end plate section 223 is located at the side of the bottom plate section 221 away from the I-beam 21.

[0035] Specifically, in the present application, the side of the bottom plate section 221 of one of the two sections of channel steel 22 that is away from the first end plate section 222 and the second end plate section 223 covers the groove on one side of the I-beam 21, and the bottom plate section 221 is respectively welded to the first horizontal section 211 and the second horizontal section 212 of the I-beam 21. The side of the bottom plate section 221 of the other channel steel 22 that is away from the first end plate section 222 and the second end plate section 223 covers the groove on the other side of the I-beam 21, and the bottom plate section 221 is respectively welded to the first horizontal section 211 and the second horizontal section 212 of the I-beam 21, so as to form the track beam body 20 of the present application. The two sections of channel steel 22 of the present application are symmetrically arranged on both sides of the I-beam 21 and are both welded and fixed to the I-beam 21. This symmetrical arrangement makes the track beam structure of the present application have higher rigidity, and also has higher bending and torsion resistance, so that the track beam structure of the present application can meet the requirements of large-scale track beams. When the track beam structure of the present application is installed in the laser cutting device for operation, the crossbeam equipped with the laser cutting head can move at high speed and high acceleration on the track beam structure, and the track beam structure can resist the high acceleration of the crossbeam and the stress caused by high-speed movement, so that the track beam structure of the present application will not fail due to bending or torsional deformation.

[0036] Further, referring to Figure 1 and Figure 2 As shown, at least one first reinforcing rib 214 is welded between the bottom plate section 221 and the vertical section 213, and the first reinforcing rib 214 is arranged parallel to the base 10.

[0037] Exemplarily, one first reinforcing rib 214 can be welded between the bottom plate section 221 and the vertical section 213, two first reinforcing ribs 214 can be welded, or more than two first reinforcing ribs 214 can be welded. This embodiment shows the case where two first reinforcing ribs 214 are welded between the bottom plate section 221 and the vertical section 213 on both sides of the I-beam 21, and the first reinforcing ribs 214 on both sides of the I-beam 21 are symmetrically arranged with respect to the vertical section 213. The setting of the first reinforcing rib 214 can enhance the stress-bearing capacity of the I-beam 21 and the stress-bearing capacity of the bottom plate section 221, thereby enhancing the rigidity of the track beam structure of the present application and the reliability of the connection. During actual operation, when the track beam structure is stressed unevenly and bends towards the channel steel 22 on one side of the I-beam 21, the channel steel 22 on the other side of the I-beam 21 will provide a tensile force to the track beam structure in the direction opposite to the bending direction of the track beam structure, thereby preventing the track beam structure from being overly bent and deformed. At the same time, the first reinforcing rib 214 located between the bottom plate section 221 and the vertical section 213 can also prevent the track beam structure from bending when stressed unevenly or under a large stress.

[0038] Further, referring to Figure 1 and Figure 2 As shown, at least one second reinforcing rib 224 is arranged between the first end plate section 222 and the second end plate section 223, and the second reinforcing rib 224 is perpendicular to the base 10 and is welded to the bottom plate section 221.

[0039] Exemplarily, a second reinforcing rib 224 may be provided between the first end plate section 222 and the second end plate section 223, or two second reinforcing ribs 224 may be provided, or more than two second reinforcing ribs 224 may be provided. This embodiment shows a case where 12 second reinforcing ribs 224 are provided between the first end plate section 222 and the second end plate section 223, and every two of the 12 second reinforcing ribs 224 are arranged at a certain distance along the length direction of the channel steel 22 (i.e., the length direction of the track beam structure). The setting of the second reinforcing rib 224 can not only strengthen the support between the first end plate section 222 and the second end plate section 223, but also strengthen the rigidity of the entire track beam structure, and can also increase the reliability of the track beam structure, preventing the first end plate section 222 and the second end plate section 223 from approaching each other when subjected to pressure, thereby causing the track beam structure to deform and unable to work properly. During actual operation, when the track beam structure is bent towards the channel steel 22 on the side of the I-beam 21 due to unbalanced force, the second reinforcing rib 224 of the channel steel 22 on the other side of the I-beam 21 will provide a tensile force to the channel steel 22 in the direction opposite to the bending direction of the track beam structure, thereby preventing the track beam structure from being excessively bent and deformed. At the same time, the second reinforcing rib 224 located between the first end plate section 222 and the second end plate section 223 can also enhance the stress-bearing capacity of the entire track beam structure. In addition, the setting of the first reinforcing rib 214 and the second reinforcing rib 224 enables the track beam structure of the present application to better meet the indicators such as large format, high speed, and high acceleration on the basis of a symmetric structure.

[0040] Further, as shown in Figure 1 and Figure 2 the weld between the I-beam 21 and the channel steel 22, the weld between the I-beam 21 and the base 10, and the weld between the channel steel 22 and the base 10 are all intermittent damping welds.

[0041] Specifically, the damped welding technology is a welding technology optimized by optimizing arc characteristics, reducing arc length, reducing fluctuations in welding current and voltage, and controlling welding speed. The damped welding method adopted in this application can reduce the generation of vibration and noise, ensure the reliability of welding, and reduce the harm to operators during the welding process. The intermittent welding, on the other hand, is a welding method where the weld seam is discontinuous. Such a welding method can reduce welding deformation and reserve space for welding deformation. In this application, the damped welding and the intermittent welding are combined to weld the gaps between the I-beam 21 and the channel steel 22, between the I-beam 21 and the base 10, and between the channel steel 22 and the base 10, thereby forming an intermittent damped weld seam. The intermittent damped weld seam can not only make the track beam structure of this application meet the rigidity requirements, but also reduce the welding deformation caused by welding, and can also reduce the influence caused by the deformation of the track beam structure during use. In addition, the laser cutting device generates vibration during operation, and the intermittent damped weld seam can reduce the transmission of vibration between the track beam structures, preventing the occurrence of unreliable connections due to vibration of the track beam structures.

[0042] Further, referring to Figures 1 to 3 As shown, the track beam structure further includes a connecting block 30, and the connecting block 30 is connected between adjacent two sections of the track beam body 20. Specifically, the setting of the connecting block 30 not only enables the operator to assemble a longer guide rail beam structure according to requirements, but also improves the structural strength between adjacent two sections of the track beam body 20. When the operator installs the track beam structure of this application into the laser cutting device, it can meet the large-format requirements of the laser cutting device, enabling the laser cutting device using the track beam structure of this application to cut some large workpieces to be cut (not shown in the figure).

[0043] Further, referring to Figures 1 to 3 As shown, scraping surfaces 225 are provided at the ends of adjacent two sections of the track beam body 20 close to each other. The connecting block 30 is attached to the scraping surface 225 and fixedly connected to the track beam body 20 through a locking member 40.

[0044] Exemplarily, the scraping surface 225 can be a circular area, an oval area, or a rectangular area. This embodiment shows the case when the scraping surface 225 is a rectangular area. The connecting block 30 can be a circular block, an oval block, or a rectangular block. This embodiment shows the case when the connecting block 30 is a rectangular block. During actual processing, the operator can machine the scraping surface 225 at the ends of adjacent two sections of the track beam body 20 that are close to each other. The setting of the scraping surface 225 should meet the straightness requirements when adjacent two sections of the track beam body 20 are connected, so that the coaxiality of a large section of the track beam body 20 formed by connecting multiple sections of the track beam body 20 can meet the standard. When the connecting block 30 cooperates with the scraping surface 225, in order to make the coaxiality of each section of the track beam body 20 meet the requirements, the operator can manually fine-tune the scraping surface 225, thereby making the straightness of the track beam structure meet the requirements.

[0045] Further, referring to Figures 1 to 3 As shown, the scraping surface 225 is provided on the channel steel 22, and the locking member 40 penetrates through the connecting block 30 and the bottom of the groove of the channel steel 22 along the thickness direction of the connecting block 30 to fix the connecting block 30 to the channel steel 22.

[0046] Specifically, the thickness direction of the connecting block 30 is the Figure 2 direction indicated by x. One connecting block 30, two connecting blocks 30, or more than two connecting blocks 30 can be provided at the ends of adjacent two sections of the track beam body 20 that are close to each other. This embodiment shows the case where two connecting blocks 30 are provided at the ends of adjacent two sections of the channel steel 22 that are close to each other. The scraping surface 225 is provided on the side of the bottom plate section 221 of the channel steel 22 that is away from the I-beam 21, and the scraping surface 225 is located at the end of the bottom plate section 221. During actual assembly, first, the operator finely processes the end faces of the ends of adjacent two sections of the track beam body 20 that are close to each other to meet the straightness after the adjacent two sections of the track beam body 20 are fixedly connected. Then, the operator places the two connecting blocks 30 parallel to each other along the width direction of the bottom plate section 221 (i.e., the direction perpendicular to the first end plate section 222 and the second end plate section 223) at the scraping surface 225. One end of each of the two connecting blocks 30 needs to be connected to the previous section of the track beam body 20, and the other end of the connecting block 30 needs to be connected to the next section of the track beam body 20. Finally, the operator penetrates the locking member 40 through the connecting block 30 and the bottom plate section 221 along the thickness direction of the connecting block 30, thereby being able to fixedly connect adjacent two sections of the track beam body 20 together.

[0047] Further, referring to Figures 1 to 3As shown, the locking member 40 includes connecting bolts or connecting screws. Specifically, there are multiple connecting bolts or connecting screws, and the arrangement of the connecting bolts or connecting screws can be reasonably arranged according to the usage of the track beam structure, and the connecting bolts or connecting screws of adjacent two track beam bodies 20 need to be symmetric about the connection of the adjacent two track beam bodies 20. Such an arrangement can not only fixedly connect the adjacent two track beam bodies 20, but also make the stress distribution on the track beam structure more uniform, thereby increasing the service life of the track beam structure.

[0048] On the other hand, the present application also relates to a laser cutting device, which can be, for example, a laser cutting machine, etc. The laser cutting device includes the above-mentioned track beam structure. Specifically, after the operator assembles the track beam structure, the track beam structure is installed in the laser cutting device. The laser cutting device adopting the track beam structure of the present application can have the characteristic of high rigidity, and at the same time, the operation of the laser cutting device can be more stable, which can meet the indexes such as large format, high speed and high acceleration, thereby solving the problems of insufficient rigidity of the track beam of the laser cutting device and unreliable connection.

[0049] It can be known from the above statements that: by setting the track beam structure composed of the base 10, the track beam body 20, the connecting block 30 and the locking member 40, the present application can solve the problems of insufficient rigidity of the track beam of the laser cutting device and unreliable connection. In the present application, the track beam body 20 adopts I-beams 21 and channel steels 22 with high rigidity. The operator reasonably arranges the I-beams 21 and channel steels 22, and intermittent damping welds are welded at the gaps between the I-beams 21 and the channel steels 22, between the I-beams 21 and the base 10, and between the channel steels 22 and the base 10 to form intermittent damping weld seams, so that the track beam structure of the present application can reduce the influence of the vibration of the laser cutting device during operation on the track beam structure while meeting high rigidity, and make the service life of the track beam structure of the present application longer. The track beam adopting the track beam structure of the present application can achieve the design of an ultra-large span (for example, the length of the track beam is 30 meters and the length of the laser cutting cross beam is 4.6 meters). In addition, the laser cutting device of the present application can achieve a high-speed operation with a running speed of 120 meters per minute, the running speed is faster than the prior art, and at the same time, the cutting accuracy is higher.

[0050] It can be seen that by optimizing the structural design of the track beam structure and adopting the combination of the I-beam 21 and the channel steel 22, the present application improves the rigidity of the track beam structure, thereby solving the problems of insufficient rigidity of the track beam and unreliable connection. Moreover, the track beam structure of the present application also has the advantages of the I-beam 21 and the channel steel 22, and is more lightweight while having high rigidity.

[0051] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used herein will be made accordingly.

[0052] In addition, it should be noted that the use of terms such as "first", "second", etc. to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present utility model.

[0053] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An orbital beam structure, characterized in that, Comprising: A base (10); A track beam main body (20), the track beam main body (20) being in multiple sections, the multiple sections of the track beam main body (20) being sequentially connected along the length direction of the track beam structure and fixedly connected to the base (10), the track beam main body (20) including an I-beam (21) and two channel steels (22), and along the width direction of the track beam structure, the two channel steels (22) are symmetrically welded to both sides of the I-beam (21).

2. The track beam structure according to claim 1, wherein The I-beam (21) includes a first horizontal section (211), a second horizontal section (212), and a vertical section (213), the first horizontal section (211) being arranged at the top end of the vertical section (213), and the second horizontal section (212) being arranged at the bottom end of the vertical section (213) and welded to the base (10). The channel steel (22) includes a bottom plate section (221), a first end plate section (222), and a second end plate section (223), the bottom plate section (221) being perpendicularly arranged to the base (10) and respectively welded to the ends of the first horizontal section (211) and the second horizontal section (212), the first end plate section (222) being arranged on the side of the bottom plate section (221) facing away from the base (10) and on the side of the bottom plate section (221) facing away from the I-beam (21), the second end plate section (223) being arranged on the side of the bottom plate section (221) close to the base (10) and welded to the base (10), and the second end plate section (223) being on the side of the bottom plate section (221) facing away from the I-beam (21).

3. The track beam structure according to claim 2, characterized in that, At least one first reinforcing rib (214) is welded between the bottom plate section (221) and the vertical section (213), and the first reinforcing rib (214) is arranged parallel to the base (10).

4. The track beam structure according to claim 2, characterized in that, At least one second reinforcing rib (224) is arranged between the first end plate section (222) and the second end plate section (223), and the second reinforcing rib (224) is perpendicular to the base (10) and welded to the bottom plate section (221).

5. The track beam structure according to claim 1, characterized in that, The weld seams between the I-beam (21) and the channel steel (22), the weld seams between the I-beam (21) and the base (10), and the weld seams between the channel steel (22) and the base (10) are all intermittent damping weld seams.

6. The track beam structure according to claim 1, characterized in that, The track beam structure further includes a connecting block (30), and the connecting block (30) is connected between adjacent two sections of the track beam main body (20).

7. The track beam structure according to claim 6, wherein Scraped surfaces (225) are arranged at the ends of adjacent two sections of the track beam main body (20) close to each other, the connecting block (30) is attached to the scraped surfaces (225) and fixedly connected to the track beam main body (20) through a locking member (40).

8. The track beam structure according to claim 7, characterized in that, The scraped surfaces (225) are arranged on the channel steel (22), and the locking member (40) penetrates through the connecting block (30) and the bottom of the groove of the channel steel (22) along the thickness direction of the connecting block (30) to fix the connecting block (30) to the channel steel (22).

9. The track beam structure according to claim 7, wherein The locking member (40) includes a connecting bolt or a connecting screw.

10. A laser cutting device, characterized in that, The laser cutting device includes the track beam structure according to any one of claims 1 to 9.

Images