A cutting device for reducing the cutting heat affected zone of H-shaped steel plate
By using a combination of argon arc welding cutting torch and water-cooled heat dissipation module in the H-beam steel plate cutting device, the temperature problem in the heat-affected zone of cutting was solved, heat loss deformation was reduced, and cutting quality was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-12
AI Technical Summary
Existing H-beam steel plate cutting equipment generates high-temperature heat during the cutting process, which affects the structural performance of non-cut parts and makes it difficult to effectively reduce the temperature of the heat-affected zone.
The cutting torch is equipped with an argon arc welding head and four water-cooled heat dissipation modules. The water-cooled heat dissipation modules surround both sides of the H-shaped steel plate cutting area and are filled with low-temperature circulating liquid to form a low-temperature heat dissipation zone to reduce the thermal impact of the cutting area.
It effectively reduces heat loss deformation of the cutting area caused by high temperature, thus improving the cutting quality.
Smart Images

Figure CN224347094U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of H-beam steel plate cutting technology, specifically a cutting device for reducing the heat-affected zone during H-beam steel plate cutting. Background Technology
[0002] H-beams, also known as I-beams or H-sections, are long strips of steel with an "I"-shaped cross-section, widely used in construction, bridges, and machinery manufacturing. Currently, most existing H-beam cutting devices use argon arc welding, which conducts the high-temperature heat generated during cutting to the steel structure on both sides of the cut, affecting the structural performance of the non-cut parts of the H-beam. Furthermore, due to the shape of the H-beam, it is inconvenient to install cooling structures for the cutting area. Therefore, this paper proposes a cutting device to reduce the heat-affected zone during H-beam cutting. Utility Model Content
[0003] The purpose of this invention is to provide a cutting device that reduces the heat-affected zone during the cutting of H-beam steel plates in order to solve the above-mentioned problems.
[0004] This utility model achieves the above-mentioned objective through the following technical solution: a cutting device for reducing the heat-affected zone of H-shaped steel plate cutting, comprising an argon arc welding cutting gun head and water-cooled heat dissipation modules for surrounding both sides of the cutting area of the H-shaped steel plate. The argon arc welding cutting gun head is disposed between two first guide rails, and two water-cooled heat dissipation modules are disposed on each first guide rail. Each water-cooled heat dissipation module has an H-shaped steel plate side groove on one side. The four water-cooled heat dissipation modules are assembled together to form an H-shaped structure. One end of the argon arc welding cutting gun head is installed at the output end of the electro-hydraulic actuator.
[0005] Preferably, the two ends of the first guide rail are fixedly installed inside the frame.
[0006] Preferably, a second guide rail is mounted on the first guide rail, and the same sliding plate is slidably mounted between the two second guide rails.
[0007] Preferably, the slide plate has a circular hole in the middle, and the circular hole is fixedly connected to the corresponding part of the electro-hydraulic actuator through a connecting structure.
[0008] Preferably, the top of the water-cooled heat dissipation module is provided with a sliding groove, and the sliding groove is slidably connected to the first guide rail.
[0009] Preferably, one end of a U-shaped rod is installed on the top of the water-cooled heat dissipation module, and the other end of the U-shaped rod is fixedly connected to the top of another water-cooled heat dissipation module.
[0010] Compared with the prior art, the advantages of this utility model are as follows: by assembling four water-cooled heat dissipation modules through their respective H-shaped steel plate side grooves at the H-shaped steel plate cutting point, and with the low-temperature circulating liquid filled inside each water-cooled heat dissipation module, a low-temperature heat dissipation zone can be formed at the H-shaped steel plate cutting point, effectively reducing the impact of heat loss deformation and other problems caused by high temperature at the cutting point, and improving the cutting quality. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a perspective view of the overall structure of this utility model;
[0013] Figure 2 This is a front view of the overall structure of this utility model;
[0014] Figure 3 This is a partial three-dimensional view of the overall structure of this utility model.
[0015] In the diagram: 1. Argon arc welding cutting gun head; 2. Electro-hydraulic actuator; 3. Slide plate; 4. Water-cooled heat dissipation module; 410. Slide groove; 420. H-shaped steel plate side groove; 5. First guide rail; 6. Second guide rail; 7. U-shaped rod; 8. Frame. Detailed Implementation
[0016] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0019] Please see Figure 1-3 As shown, a cutting device for reducing the heat-affected zone of H-shaped steel plate cutting includes an argon arc welding cutting gun head 1 and water-cooled heat dissipation modules 4 for surrounding both sides of the cutting area of the H-shaped steel plate. The argon arc welding cutting gun head 1 is disposed between two first guide rails 5, and two water-cooled heat dissipation modules 4 are disposed on each first guide rail 5. Each water-cooled heat dissipation module 4 has an H-shaped steel plate side mounting groove 420 on one side. The four water-cooled heat dissipation modules 4 are assembled together to form an H-shaped structure. One end of the argon arc welding cutting gun head 1 is installed at the output end of the electro-hydraulic actuator 2.
[0020] Furthermore, the first guide rail 5 is fixedly installed at both ends inside the frame 8.
[0021] Furthermore, a second guide rail 6 is installed on the first guide rail 5, and the same slide plate 3 is slidably installed between the two second guide rails 6.
[0022] Furthermore, a circular hole is provided in the middle of the slide plate 3, and the circular hole is fixedly connected to the corresponding part of the electro-hydraulic actuator 2 through a connecting structure.
[0023] Furthermore, the top of the water-cooled heat dissipation module 4 is provided with a sliding groove 410, and the sliding groove 410 is slidably connected to the first guide rail 5.
[0024] Furthermore, a U-shaped rod 7 is installed on the top of the water-cooled heat dissipation module 4, and the other end of the U-shaped rod 7 is fixedly connected to the top of another water-cooled heat dissipation module 4.
[0025] In use, all the water-cooled heat dissipation modules 4, located on the two first guide rails 5, are placed at the part of the H-shaped steel plate to be cut. The argon arc welding cutting head 1 is turned on to start cutting. The electro-hydraulic push rod 2 pushes the connected argon arc welding cutting head 1 closer to the cutting part, and at the same time pushes the slide plate 3 to move left and right along the second guide rail 6 to complete the span cutting. The heat generated by cutting is absorbed by the water-cooled heat dissipation modules 4, reducing the impact of heat loss and deformation of the cutting part due to high temperature.
[0026] Compared with existing technologies, the difference is that by using four water-cooled heat dissipation modules 4, which are attached to the H-shaped steel plate through their respective H-shaped steel plate side grooves 420, and with the low-temperature circulating liquid filled inside each water-cooled heat dissipation module 4, a low-temperature heat dissipation zone can be formed at the H-shaped steel plate cutting point. This effectively reduces the impact of heat loss deformation and other problems caused by high temperature at the cutting point, and improves the cutting quality.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0028] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A cutting device for reducing the heat-affected zone during H-beam steel plate cutting, characterized in that: It includes an argon arc welding cutting gun head (1) and a water-cooled heat dissipation module (4) for surrounding both sides of the H-shaped steel plate cutting area. The argon arc welding cutting gun head (1) is set between two first guide rails (5), and each first guide rail (5) is provided with two water-cooled heat dissipation modules (4). Each water-cooled heat dissipation module (4) has an H-shaped steel plate side groove (420) on one side. The four water-cooled heat dissipation modules (4) are spliced together to form an H-shaped structure. One end of the argon arc welding cutting gun head (1) is installed at the output end of the electro-hydraulic push rod (2).
2. The cutting device for reducing the heat-affected zone during H-beam steel plate cutting according to claim 1, characterized in that: The first guide rail (5) is fixedly installed at both ends inside the frame (8).
3. The cutting device for reducing the heat-affected zone during H-beam steel plate cutting according to claim 1, characterized in that: A second guide rail (6) is installed on the first guide rail (5), and the same slide plate (3) is slidably installed between the two second guide rails (6).
4. The cutting device for reducing the heat-affected zone during H-beam steel plate cutting according to claim 3, characterized in that: The slide plate (3) has a circular hole in the middle, and the circular hole is fixedly connected to the corresponding part of the electro-hydraulic actuator (2) through a connecting structure.
5. The cutting device for reducing the heat-affected zone during H-beam steel plate cutting according to claim 1, characterized in that: The water-cooled heat dissipation module (4) has a sliding groove (410) on its top, and the sliding groove (410) is slidably connected to the first guide rail (5).
6. The cutting device for reducing the heat-affected zone during H-beam steel plate cutting according to claim 1, characterized in that: The top of the water-cooled heat dissipation module (4) is equipped with one end of a U-shaped rod (7), and the other end of the U-shaped rod (7) is fixedly connected to the top of another water-cooled heat dissipation module (4).