Cross beam component and laser cutting machine
By designing a structure that uses one end to fixed and one end to float, and combining the guide assembly and elastic assembly, the jitter problem of the beam components of the laser cutting machine during high-speed processing is solved, and the machining accuracy and tabletop utilization are improved.
Patent Information
- Application Number
- CN202420117388.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-01-17
AI Technical Summary
The beam parts of existing laser cutting machines are prone to shake during high-speed processing, resulting in reduced processing accuracy and need to be split and welded during processing of large parts, which increases the problem of cost and uneven stress.
A cross beam component is designed, using a structure that is fixed at one end and floats along the length direction. The guide assembly and elastic components (such as disc springs) are elastically compensated to ensure the stability of the processing origin and reduce jitter errors.
It effectively improves processing accuracy, reduces processing errors, improves countertop utilization, and reduces manufacturing costs. It is suitable for large-format and high-speed processing.
Smart Images
Figure CN222471149U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of laser processing equipment, in particular to a crossbeam component and a laser cutting machine. Background Art
[0002] The laser cutting machine mainly includes a bed, a beam component and a head component. Among them, the beam component is a component that connects the bed and carries the head. On the one hand, it needs to move along the bed, and on the other hand, the head on it also needs to move along the beam component. The two-way superposition completes the movement and cutting of the laser in a two-dimensional plane. Therefore, the beam is a key component in the axis motion system of the laser cutting machine.
[0003] At present, as the laser cutting machine has an increasingly larger requirement for processing width, the span of the beam component on the table, that is, its own length requirement, is also increasing. However, it is inevitable that, under the premise of the same structure, the greater the length, the lower the rigidity. Therefore, during high-speed processing, especially when the beam component and the head component move at the same time, the beam component will produce a large shake, resulting in a sharp deterioration in processing accuracy and higher manufacturing costs. The current beam structure only meets the needs of small-format processing, and the size of the workpiece is limited. When large parts are required, the required parts can only be disassembled for processing, and then a series of welding processes are carried out, which is not only time-consuming and labor-intensive, but also increases costs, and the stress of the processed parts is uneven, and the service life will also be reduced. Summary of the invention
[0004] The utility model provides a crossbeam component to solve the problem that the long crossbeam of the current laser cutting machine is easy to shake and thus leads to poor processing precision.
[0005] In order to solve the above problems, the technical solution adopted by the utility model is a beam component, including a beam body, a first connecting seat and a second connecting seat are respectively provided at both ends of the beam body, the first connecting seat is fixedly connected to the beam body, and a guide component and an elastic component are provided between the second connecting seat and the beam body, and the moving direction of the guide component and the telescopic direction of the elastic component are both along the length direction of the beam body. In this solution, the two ends of the beam body are set to be fixed at one end and floating at the other end along the length direction, and the floating end performs elastic compensation when the beam vibrates, and at the same time, the fixed end is used as a reference to ensure the position of the processing origin, and the processing error is compensated by elastic floating to ensure the processing accuracy.
[0006] Preferably, a pad is provided at the end of the beam, and the elastic component includes a first fixed block and a second fixed block, the first fixed block is fixedly mounted on the second connecting seat, and the second fixed block is fixedly mounted on the pad, a guide rod is provided between the first fixed block and the second fixed block, and a spring is provided on the guide rod, the spring abuts against the second fixed block and can push the beam body toward the direction of the first connecting seat.
[0007] Preferably, the first fixing block is located on the side of the second fixing block close to the first connecting seat, one end of the guide rod is connected to the first fixing block, a through hole is provided in the second fixing block, the other end of the guide rod passes through the through hole and is provided with a stop structure, and the spring is located between the stop structure and the second fixing block. The first fixing block and the second fixing block are made close to each other, and the spring is located on the outside of the second fixing block, which shortens the required distance between the crossbeam body and the second fixing seat, and can increase the processable range and improve the tabletop utilization rate without changing the outer dimensions of the laser cutting machine.
[0008] Preferably, the guide rod is a bolt, the end of the bolt is threadedly connected to the first fixing block, the bolt head is located on the side of the second fixing block facing away from the first fixing block, and two washers are provided on the bolt, the spring is located between the two washers, and the two washers are respectively in contact with the bolt head and the second fixing block. The pre-compression degree of the spring can be adjusted by the screwing amount of the bolt to ensure the best compensation effect.
[0009] Preferably, the spring is a disc spring, which is deformed only along the elongation axis and is not likely to generate forces in other directions, thereby improving the movement accuracy of the crossbeam.
[0010] Preferably, the guide assembly includes a guide rail and a slider slidably mounted on the guide rail, the guide rail is fixedly mounted on the second connecting seat, and the slider is mounted on the bottom surface of the end of the beam body.
[0011] Preferably, the cross section of the beam body is rectangular, and a vertical plate is provided in the inner cavity of the beam body along the length direction, and the upper and lower edges of the vertical plate are respectively connected to the upper and lower surfaces of the inner cavity of the beam body and divide the inner cavity of the beam body into a first cavity and a second cavity. A double inner cavity structure is adopted inside the beam body to improve the rigidity of the beam body.
[0012] Preferably, a plurality of reinforcing rib groups are provided in the first cavity and / or the second cavity, the plurality of reinforcing rib groups are arranged along the length direction of the cross beam body, the reinforcing rib group includes two rib plates, and the two rib plates are arranged in a "V" shape. The V-shaped reinforcing ribs have higher strength and support function, as well as anti-deformation ability.
[0013] Preferably, the crossbeam body includes a square tube beam and a trough beam, the side of the square tube beam and the bottom surface of the trough bottom plate of the trough beam are close to each other and fixedly connected, the notch of the trough beam is installed with a sealing plate, the inner cavity of the square tube beam forms a first cavity, the trough beam and the sealing plate form a second cavity, the side walls of the square tube beam and the trough beam close to each other form a vertical plate, and the reinforcing rib group is arranged in the second cavity. The crossbeam body is spliced in the width direction and continuous in the length direction, which reduces the processing difficulty and ensures the overall rigidity. The second cavity is spliced with a sealing plate to facilitate the installation of internal reinforcing ribs.
[0014] On the other hand, the utility model further provides a laser cutting machine, including a bed, on which the above-mentioned crossbeam component is arranged, and the first connecting seat and the second connecting seat can be movably mounted on the bed.
[0015] It can be seen from the above technical scheme that the advantages of the utility model are as follows: in this scheme, the main body of the beam adopts a form in which one end is fixed and the other end is axially floating. The fixed end is used to ensure the position of the processing origin, and the floating end is an elastic compensation end to ensure the processing accuracy. The elastic component adopts a disc spring with a single deformation direction, which is beneficial to reduce the stress of the connecting structure of the floating end of the beam outside the direction of the beam, ensure the movement accuracy, and effectively compensate for the error. Through the structural design of the elastic component, the spring preload force is adjustable, and the utilization rate of the table area can be improved at the same time; the main body of the beam adopts a double-cavity structure welded by bending parts and rectangular tubes, and reinforcing ribs are arranged inside. While improving the rigidity under large length, it is more convenient to manufacture, avoiding cumbersome processing technology, and can perform large-format processing work; at the same time, the laser cutting machine provided by the utility model adopts this beam structure, and the processing error is lower when running at a large format and high speed, which effectively improves the processing accuracy and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0017] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.
[0018] Figure 2 It is a structural schematic diagram of the elastic component in a specific implementation manner of the utility model.
[0019] Figure 3 It is a structural schematic diagram of the guide assembly in a specific implementation manner of the utility model.
[0020] Figure 4 It is a structural schematic diagram of the beam body in a specific implementation manner of the utility model.
[0021] In the figure: 1. beam body, 1-1. square tube beam, 1-2. trough beam, 1-3. cover plate, 2. first connecting seat, 3. second connecting seat, 4. pad, 5. first fixed block, 6. second fixed block, 7. guide rod, 8. spring, 9. guide rail, 10. slider, 11. rib plate, 12. gasket. DETAILED DESCRIPTION
[0022] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.
[0023] Embodiment 1
[0024] like Figure 1 As shown, a crossbeam component includes a crossbeam body 1, and the bottom surfaces of both ends of the crossbeam body are respectively provided with pads 4, and the first end of the crossbeam body 1 (set Figure 1 , Figure 2 The left side of the backing plate 4 is connected to the first connecting seat 2 by screw fastening, and the second end of the beam body 1 (the left side of the backing plate 4 is connected to the first connecting seat 2 by screw fastening, etc. Figure 1 , Figure 2 The backing plate 4 (the right side of the figure is the second end) is connected to the second connecting seat 3 through a guide component and an elastic component, and the moving direction of the guide component and the telescopic direction of the elastic component are both along the length direction of the beam body.
[0025] Specifically, Figure 2 , 3 As shown, the guide assembly includes two guide rails 9 arranged on the upper surface of the second connecting seat 3, the two guide rails 9 are parallel to each other and are arranged along the length direction of the beam body 1, and each guide rail 9 is provided with two sliders 10, and the sliders 10 are fixedly connected to the bottom surface of the pad 4 at the second end of the beam body and can slide along the guide rails 9; the elastic assembly includes a first fixed block 5 and a second fixed block 6, the first fixed block 5 is fixedly installed on the upper surface of the second connecting seat 3, and the second fixed block 6 is fixedly installed on the upper surface of the pad 4, and a through hole is opened in the second fixed block 6 along the length direction of the beam body, and a guide rod 7 is inserted in the through hole. In this embodiment, the guide rod 7 adopts a bolt, and the first fixed block is arranged on one side of the second fixed block close to the first end of the beam body (that is, Figure 2 In the embodiment, the first fixed block is located on the left side of the second fixed block), a threaded hole is provided on the right side of the first fixed block, and the screw rod of the bolt passes through the through hole of the second fixed block from right to left. A guide rod 7 is provided between the first fixed block 5 and the second fixed block 6, and a spring 8 is provided on the guide rod 7. The spring 8 abuts against the second fixed block and can push the crossbeam body toward the first connecting seat 2. In this embodiment, the spring adopts a plurality of stacked disc springs, and the disc springs are stacked back to back. Two gaskets 12 are also provided on the bolt, and the disc spring is located between the two gaskets 12. The gaskets on both sides are respectively pressed against the right side of the second fixed block 6 and the bolt head of the bolt under the elastic pressure of the disc spring, and the pre-compression amount of the disc spring group can be adjusted by turning the bolt.
[0026] like Figure 1 , 4 As shown, the crossbeam body 1 is a combined welded structure, including a square tube beam 1-1 and a trough beam 1-2. The square tube beam 1-1 and the trough beam 1-2 are continuous in the length direction of the crossbeam body, that is, the length of both is the length of the crossbeam body. The notch of the trough beam 1-2 is arranged horizontally, that is, its trough bottom plate is located in the vertical plane. One side surface of the square tube beam 1-1 and the bottom surface of the trough bottom plate of the trough beam 1-2 have the same shape, are abutted against each other and are welded and fixedly connected. The notch of the trough beam 1-2 is installed with a sealing plate 1-3. Specifically, a plurality of protrusions are evenly distributed on the upper and lower edges of the sealing plate 1-3, and notches corresponding to the protrusions are provided on the edge of the trough wall plate of the trough beam 1-2. The protrusions and notches are engaged with each other and then welded and fixed. Through this intermittent welding, stress concentration is effectively reduced and uniform force is ensured. With this structure, the inner cavity of the square tube beam 1-1 forms a first cavity, and the trough beam 1-2 and the cover plate 1-3 form a second cavity, that is, the inner cavity of the beam body is divided into two parts, and a plurality of reinforcing rib groups are provided in the second cavity, such as Figure 4 As shown, multiple reinforcing rib groups are arranged along the length direction of the crossbeam body 1, and the reinforcing rib groups include two rib plates 11. The two rib plates 11 are in an inverted "V" shape, that is, the two rib plates 11 are symmetrically inclined, and the top edges are connected to each other and fixedly connected to the top surface of the second cavity, and the lower side edges of the rib plates 11 are fixedly connected to the bottom surface of the second cavity. At the same time, the side edges of the rib plates 11 close to the sealing plate 1-3 are provided with multiple protrusions, and the corresponding positions of the sealing plate 1-3 are provided with slots. When the crossbeam is assembled, the rib plates 11 are installed in the grooves of the grooved beams 1-2, and the sealing plates are installed after welding. The edge protrusions of the rib plates 11 are inserted into the slots of the sealing plates, and then they are welded and fixed at the slots. This kind of plug welding can increase the welding density of the rib plates and ensure the firmness and reliability of the reinforcing ribs.
[0027] Embodiment 2
[0028] Based on the beam structure provided in Example 1, this embodiment further provides a laser cutting machine, including a bed, on which the beam component described in Example 1 is provided. For details, reference can be made to the existing laser cutting machine structure. Two parallel guide rail assemblies are arranged on the bed, and the first connecting seat and the second connecting seat at both ends of the beam body are respectively fixed on the sliders of the two guide rail assemblies.
[0029] It can be seen from the above embodiments that the beneficial effect of the utility model lies in that the main body of the beam in this scheme adopts the form of one end fixed and the other end axially floating, the fixed end is used to ensure the position of the processing origin, and the floating end is an elastic compensation end to ensure the processing accuracy. The elastic component adopts a disc spring with a single deformation direction, which is beneficial to reduce the stress of the connecting structure of the floating end of the beam outside the direction of the beam, ensure the movement accuracy, and effectively compensate for the error. Through the structural design of the elastic component, the spring preload force is adjustable, and the utilization rate of the table area can be improved at the same time; the main body of the beam adopts a double-cavity structure welded by bending parts and rectangular tubes, and reinforcing ribs are arranged inside, which improves the rigidity under large length and is more convenient to manufacture, avoids cumbersome processing technology, and can carry out large-format processing work; at the same time, the laser cutting machine provided by the utility model adopts this beam structure, and the processing error is lower when running at a large format and high speed, which effectively improves the processing accuracy and processing efficiency.
[0030] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A crossbeam component, comprising a crossbeam body (1), with a first connecting seat (2) and a second connecting seat (3) respectively provided at two ends of the crossbeam body, characterized in that: The first connecting seat (2) is fixedly connected to the crossbeam body (1), and a guide component and an elastic component are provided between the second connecting seat (3) and the crossbeam body (1), wherein the moving direction of the guide component and the telescopic direction of the elastic component are both along the length direction of the crossbeam body.
2. The crossbeam member according to claim 1, characterized in that A pad (4) is provided at the end of the cross beam, and the elastic component comprises a first fixed block (5) and a second fixed block (6), the first fixed block (5) is fixedly mounted on the second connecting seat (3), and the second fixed block (6) is fixedly mounted on the pad (4), a guide rod (7) is provided between the first fixed block (5) and the second fixed block (6), and a spring (8) is provided on the guide rod (7), the spring (8) abuts against the second fixed block and can push the cross beam body toward the direction of the first connecting seat (2).
3. The crossbeam member according to claim 2, characterized in that: The first fixing block (5) is located on a side of the second fixing block (6) close to the first connecting seat (2); one end of the guide rod (7) is connected to the first fixing block (5); a through hole is provided in the second fixing block (6); the other end of the guide rod (7) passes through the through hole and is provided with a stop structure; the spring (8) is located between the stop structure and the second fixing block (6).
4. The crossbeam member according to claim 3, characterized in that The guide rod (7) is a bolt, the end of the bolt screw is threadedly connected to the first fixing block (5), the bolt head is located on the side of the second fixing block (6) facing away from the first fixing block (5), and two washers are also provided on the bolt screw, the spring (8) is located between the two washers, and the two washers are respectively in contact with the bolt head and the second fixing block.
5. The cross beam member according to claim 2, characterized in that: The spring (8) is a disc spring.
6. The crossbeam component according to any one of claims 1 to 5, characterized in that: The guide assembly comprises a guide rail (9) and a slider (10) slidably mounted on the guide rail (9); the guide rail (9) is fixedly mounted on the second connecting seat (3); and the slider (10) is mounted on the bottom surface of the end of the crossbeam body (1).
7. The crossbeam component according to any one of claims 1 to 5, characterized in that: The cross section of the crossbeam body (1) is rectangular, and a vertical plate is provided in the inner cavity of the crossbeam body (1) along the length direction, and the upper and lower edges of the vertical plate are respectively connected to the upper and lower surfaces of the inner cavity of the crossbeam body and divide the inner cavity of the crossbeam body into a first cavity and a second cavity.
8. The crossbeam member according to claim 7, characterized in that A plurality of reinforcing rib groups are provided in the first cavity and / or the second cavity, the plurality of reinforcing rib groups being arranged along the length direction of the crossbeam body (1), the reinforcing rib groups comprising two rib plates (11), and the two rib plates (11) being arranged in a "V" shape.
9. The crossbeam member according to claim 8, characterized in that The crossbeam body (1) comprises a square tube beam (1-1) and a trough beam (1-2); the side surface of the square tube beam (1-1) and the bottom surface of the trough bottom plate of the trough beam (1-2) are in contact with each other and are fixedly connected; the notch of the trough beam (1-2) is provided with a sealing plate (1-3); the inner cavity of the square tube beam (1-1) forms the first cavity; the trough beam (1-2) and the sealing plate (1-3) enclose the second cavity; the side walls of the square tube beam (1-1) and the trough beam (1-2) in contact with each other form the vertical plate; and the reinforcing rib group is arranged in the second cavity.
10. A laser cutting machine, comprising a bed, characterized in that: The bed frame is provided with a crossbeam component as described in any one of claims 1 to 9, and the first connecting seat and the second connecting seat can be movably mounted on the bed frame.