Steel cutting device for machining fireproof and anti-corrosion integrated steel structure
By installing a balance sleeve on the outside of the laser cutting head and combining it with a dynamic balancing mechanism of internal and external counterweight adjustment blocks, the problem of poor balance of the laser cutting head is solved, the cutting accuracy and surface integrity of fireproof and corrosion-resistant steel are improved, and the processing quality and efficiency are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-14
AI Technical Summary
The laser cutting head is not well balanced during steel processing, which leads to a decrease in cutting accuracy and unstable cutting surface quality. Furthermore, it is easy to damage the surface protective layer on fireproof and corrosion-resistant steel.
A dynamic balancing mechanism is formed by fitting a balance sleeve around the laser cutting head and combining it with an inner and outer counterweight adjustment block. The linkage design between the slider and the piston cylinder achieves precise driving and stability of the laser cutting head, counteracts unbalanced torque, and enhances the responsiveness to changes in the center of gravity.
It improves the stability and processing quality of the cutting process, ensures cutting accuracy and the surface integrity of fireproof and corrosion-resistant steel, and enhances production efficiency.
Smart Images

Figure CN224115426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of steel structure processing equipment, specifically a steel cutting device for integrated fireproof and corrosion-resistant steel structure processing. Background Technology
[0002] Precise steel cutting is a crucial step in steel structure manufacturing, directly impacting component processing accuracy and overall assembly quality. Traditional steel cutting methods include flame cutting, plasma cutting, and laser cutting, with laser cutting being widely adopted due to its advantages such as high precision, small heat-affected zone, and smooth cut surface. Simultaneously, fireproofing and corrosion protection are also essential aspects of steel structure processing to enhance durability and safety.
[0003] Currently, when using laser cutting for steel processing, the balance of the laser cutting head has become one of the key factors affecting cutting quality and efficiency. Especially during high-speed cutting, if the balance of the laser cutting head is poor, it is easy for the cutting head to shift or vibrate during movement. This imbalance not only reduces the accuracy of the cutting path but also causes defects on the cut surface. More importantly, when processing steel that has undergone fireproofing and anti-corrosion treatment, this shift or vibration may damage the protective layer on the steel surface, resulting in the need for additional repair work to ensure the durability and safety of the steel. Utility Model Content
[0004] The purpose of this utility model is to provide a steel cutting device for integrated fireproof and corrosion-resistant steel structure processing, so as to solve the problems mentioned in the background art, such as poor balance of the laser cutting head leading to decreased cutting accuracy, unstable cutting surface quality, and easy damage to the surface protective layer when cutting steel that has undergone fireproof and corrosion-resistant treatment.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel cutting device for processing fireproof and corrosion-resistant integrated steel structures, comprising a frame, a working platform, and side support plates. A movable seat is driven between the side support plates via a guide rail system. A laser cutting head is mounted on the bottom of the movable seat via a fixing component. A balance sleeve is fitted around the laser cutting head. Inner counterweight adjustment blocks are provided on both sides inside the balance sleeve, and outer counterweight adjustment blocks are provided on both sides outside the balance sleeve. The inner and outer counterweight adjustment blocks together form a dynamic balancing mechanism for the laser cutting head.
[0006] Preferably, both inner walls of the balance sleeve are driven by a slide rail system to have sliders, and horizontally distributed piston cylinders are fixedly installed on the outer side of the sliders, and the output end of the piston cylinders is fixedly connected to the middle of the outer side of the inner counterweight adjusting block.
[0007] Preferably, a flexible pressing block is movably provided on the inner side of the inner counterweight adjusting block, and both the inner counterweight adjusting block and the flexible pressing block are arc-shaped structures, and the height of the flexible pressing block is greater than the height of the inner counterweight adjusting block.
[0008] Preferably, both the upper and lower ends of the flexible pressing block are fixed with protruding posts, and both the upper and lower ends of the inner counterweight adjusting block are fixed with guide rings that cooperate with the protruding posts, and a compression spring is sleeved on the outer end of the protruding post.
[0009] Preferably, both outer walls of the balance sleeve are provided with adjustment grooves that cooperate with the external counterweight adjustment block, and an actuator connected to the external counterweight adjustment block is fixed at the upper end of the adjustment groove of the balance sleeve, and multiple unit modules are embedded on the outer wall of the external counterweight adjustment block.
[0010] Preferably, a stabilizing ring is welded to the bottom end of the fixing member, and the top end of the balancing sleeve is fitted inside the stabilizing ring and fixed with bolts.
[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This fireproof and corrosion-resistant integrated steel structure processing steel cutting device improves the stability of the cutting process by optimizing the balance structure of the laser cutting head, thereby improving processing quality and production efficiency. The device effectively counteracts the unbalanced torque generated by high-speed movement during cutting by using a balance sleeve on the outside of the laser cutting head, combined with a dynamic balance mechanism formed by the inner and outer counterweight adjustment blocks. Simultaneously, the linkage design between the slider and the piston cylinder enables precise driving of the inner counterweight adjustment block, further enhancing the system's responsiveness to changes in the overall center of gravity of the laser cutting head, ensuring stable operation even under complex working conditions. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of a steel cutting device for processing an integrated fireproof and corrosion-resistant steel structure according to the present invention.
[0013] Figure 2 This is a schematic diagram of the internal structure of the balance sleeve of the steel cutting device for processing fireproof and corrosion-resistant integrated steel structures according to this utility model.
[0014] Figure 3 This is a schematic diagram of the external structure of the balance sleeve of the steel cutting device for integrated fireproof and corrosion-resistant steel structure processing according to the present invention.
[0015] In the diagram: 1. Frame; 2. Working platform; 3. Side support plate; 4. Moving seat; 5. Fixing component; 6. Laser cutting head; 7. Balance sleeve; 8. Inner counterweight adjusting block; 9. Outer counterweight adjusting block; 10. Stabilizing ring; 11. Slider; 12. Piston cylinder; 13. Flexible pressing block; 14. Protruding column; 15. Guide ring; 16. Compression spring; 17. Actuator; 18. Unit module. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-3This utility model provides a technical solution: a steel cutting device for processing fireproof and corrosion-resistant integrated steel structures, including a frame 1, a working platform 2, and side support plates 3. The working platform 2 is fixed to the top of the frame 1, and the side support plates 3 are welded and fixed to both sides of the working platform 2. A movable seat 4 is driven between the side support plates 3 through a guide rail system. This guide rail system is an existing precision linear guide rail system, which can realize precise displacement of the X-axis and Y-axis of the movable seat 4. A laser cutting head 6 is installed at the bottom of the movable seat 4 through a fixing member 5. A balance sleeve 7 is sleeved on the outside of the laser cutting head 6. The balance sleeve 7 has inner counterweight adjustment blocks 8 on both sides inside and outer counterweight adjustment blocks 9 on both sides outside. Block 9 together form the dynamic balancing mechanism of the laser cutting head 6. This structure is achieved by installing a balancing sleeve 7 on the outside of the laser cutting head 6. The balancing sleeve 7, through the combined action of the inner counterweight adjustment block 8 and the outer counterweight adjustment block 9, forms a dynamic balancing mechanism. That is, when the laser cutting head 6 performs high-speed cutting under the drive of the guide rail system, as the moving seat 4 precisely displaces in the X and Y axes, the inertial force generated by the change in the cutting path of the laser cutting head 6 will cause a tendency to deviate. At this time, the inner counterweight adjustment block 8 and the outer counterweight adjustment block 9 automatically adjust the counterweight distribution according to the motion state to counteract the unbalanced torque generated by the laser cutting head 6 during the movement, thereby effectively preventing the cutting head from deviating or vibrating, and ensuring that it always maintains a stable balance at various cutting speeds. Maintaining a stable posture, this design solves the problems of decreased cutting accuracy, cut surface defects, and damage to the fireproof and anti-corrosion protective layer of steel caused by poor balance performance of the laser cutting head in existing technologies. It significantly improves cutting quality and processing efficiency. Both inner walls of the balance sleeve 7 are driven by a slide rail system to accommodate sliders 11. Horizontally distributed piston cylinders 12 are bolted to the outer side of the sliders 11. The piston cylinders 12 can be standard CDJ2B series cylinders, and their output ends are fixedly connected to the outer middle of the inner counterweight adjusting block 8. This structure achieves the vertical displacement of the sliders 11 through the slide rail system on both inner walls of the balance sleeve 7, and the output end of the piston cylinders 12 drives the inner counterweight adjusting block 8 to move laterally. Based on the changes in the center of gravity of the laser cutting head 6 under different working conditions, the position distribution of the inner counterweight adjustment block 8 is dynamically adjusted to achieve real-time compensation and precise control of the overall balance of the cutting head. A flexible pressing block 13 is movably provided on the inner side of the inner counterweight adjustment block 8. Both the inner counterweight adjustment block 8 and the flexible pressing block 13 are arc-shaped structures, and the height of the flexible pressing block 13 is greater than the height of the inner counterweight adjustment block 8. Protruding posts 14 are welded and fixed to the upper and lower ends of the outer side of the flexible pressing block 13. Guide rings 15 that cooperate with the protruding posts 14 are fixed to the upper and lower ends of the outer side of the inner counterweight adjustment block 8. A compression spring 16 is sleeved on the outer end of the protruding post 14, and the two ends of the compression spring 16 are connected to the outer side of the guide ring 15 and the inner side of the outer end of the protruding post 14, respectively.When the inner counterweight adjusting block 8 adjusts its position according to the change in the center of gravity of the laser cutting head 6, the flexible pressing block 13 set on its inner side moves synchronously and flexibly fits against the outside of the two side shells of the laser cutting head 6. At this time, the flexible pressing block 13 will drive the protrusion 14 to slide inside the guide ring 15, which, together with the externally sleeved compression spring 16, produces an elastic buffering effect. This allows the flexible pressing block 13 to maintain stable contact while having a certain self-adjusting capability, thereby effectively absorbing the slight vibration and offset tendency generated by the laser cutting head 6 during high-speed operation, further improving its running stability and cutting accuracy. The outer walls of both sides of the balance sleeve 7 are provided with adjustment grooves that cooperate with the outer counterweight adjusting block 9, and the upper end of the adjustment groove of the balance sleeve 7 is fixed with an actuator 17 connected to the outer counterweight adjusting block 9. The actuator 17 can be a Festo electric cylinder EGC series. The output end of the actuator 17 is connected to the top of the outer counterweight adjusting block 9. The intermediate fixed connection is provided, and multiple unit modules 18 are embedded on the outer wall of the outer counterweight adjustment block 9. In this structure, the actuator 17 adjusts the position of the outer counterweight adjustment block 9 in real time according to system feedback to dynamically compensate for the unbalanced torque generated by the movement of the laser cutting head 6. Furthermore, the multiple unit modules 18 can be flexibly replaced or adjusted on the outer wall of the outer counterweight adjustment block 9 as needed to adapt to different counterweight requirements, further optimizing the overall balance effect. A stabilizing ring 10 is welded and fixed to the bottom end of the fixing part 5, and the top end of the balance sleeve 7 is embedded inside the stabilizing ring 10 and fixed with bolts. This rigid connection between the stabilizing ring 10 and the balance sleeve 7 effectively enhances the stability and deformation resistance of the overall structure, preventing cutting deviations or equipment damage caused by loose connections. It ensures that the laser cutting head 6 can maintain a precise cutting trajectory and stable operation under complex working conditions, and also facilitates the disassembly of the balance sleeve 7 from the outside of the laser cutting head 6.
[0018] Working principle: When using this fireproof and corrosion-resistant integrated steel structure processing steel cutting device, the steel to be cut is first placed on the work platform 2 and positioned using a clamp. The moving seat 4 is precisely displaced along the X and Y axes under the drive of the guide rail system between the side support plates 3, driving the laser cutting head 6 installed at its bottom to move to the set position. When the laser cutting head 6 starts cutting the steel, the actuator 17 drives the outer counterweight adjusting block 9 to slide along the adjusting grooves on both sides of the balance sleeve 7, while the piston cylinder 12 pushes the inner counterweight adjusting block 8 horizontally. As the slider 11 moves in the direction of displacement, it slides up and down in the slide rail system on the inner wall of the balance sleeve 7, cooperating with the piston cylinder 12 to achieve precise positioning of the inner counterweight adjustment block 8. At the same time, the flexible pressing block 13, driven by the inner counterweight adjustment block 8, is in close contact with the outer side of the laser cutting head 6 housing. The protrusion 14 on it slides in the guide ring 15 and is elastically buffered by the compression spring 16 to maintain stable contact with the laser cutting head 6. In this way, with the coordinated action of the unit module 18 of the outer counterweight adjustment block 9, the stability of the laser cutting head 6 cutting process will be higher, thereby completing a series of tasks.
[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A steel cutting device for processing fireproof and corrosion-resistant integrated steel structures, comprising a frame (1), a working platform (2), and a lateral support plate (3), characterized in that: The lateral support plates (3) are driven by a guide rail system to move a seat (4). The bottom of the moving seat (4) is fitted with a laser cutting head (6) by a fixing piece (5). A balance sleeve (7) is fitted on the outside of the laser cutting head (6). The balance sleeve (7) has an inner counterweight adjustment block (8) on both sides inside and an outer counterweight adjustment block (9) on both sides outside. The inner counterweight adjustment block (8) and the outer counterweight adjustment block (9) together form the dynamic balance mechanism of the laser cutting head (6).
2. The steel cutting device for integrated fireproof and corrosion-resistant steel structure processing according to claim 1, characterized in that: Both sides of the inner wall of the balance sleeve (7) are driven by a slide rail system with sliders (11), and the outer side of the slider (11) is fixedly installed with horizontally distributed piston cylinders (12), and the output end of the piston cylinder (12) is fixedly connected to the middle of the outer side of the inner counterweight adjustment block (8).
3. The steel cutting device for integrated fireproof and corrosion-resistant steel structure processing according to claim 1, characterized in that: The inner counterweight adjustment block (8) is provided with a flexible pressing block (13) on its inner side. Both the inner counterweight adjustment block (8) and the flexible pressing block (13) are arc-shaped structures, and the height of the flexible pressing block (13) is greater than the height of the inner counterweight adjustment block (8).
4. The steel cutting device for integrated fireproof and corrosion-resistant steel structure processing according to claim 3, characterized in that: The upper and lower ends of the flexible pressing block (13) are fixed with protruding posts (14), and the upper and lower ends of the inner counterweight adjusting block (8) are fixed with guide rings (15) that cooperate with the protruding posts (14), and a compression spring (16) is sleeved on the outer end of the protruding post (14).
5. The steel cutting device for processing fireproof and corrosion-resistant integrated steel structures according to claim 1, characterized in that: The outer walls of both sides of the balance sleeve (7) are provided with adjustment grooves that cooperate with the external counterweight adjustment block (9), and the upper end of the adjustment groove of the balance sleeve (7) is fixed with an actuator (17) connected to the external counterweight adjustment block (9), and multiple unit modules (18) are embedded on the outer wall of the external counterweight adjustment block (9).
6. The steel cutting device for processing fireproof and corrosion-resistant integrated steel structures according to claim 1, characterized in that: The bottom end of the fastener (5) is welded and fixed with a stabilizing ring (10), and the top end of the balance sleeve (7) is fitted inside the stabilizing ring (10) and fixed with bolts.