Flame cutting device for steel structure building

Abstract

The utility model is applicable to the technical field of steel structure cutting, and provides a flame cutting device for a steel structure building, which comprises a support and a support which are arranged at an interval, the support is fixedly connected to the sides of the two supports, a movable seat is arranged above the support, the flame cutting device further comprises a flame cutting machine main body, and a flame spray gun is fixedly mounted on the movable seat. The flame cutting machine body is communicated with a flame spray gun through a hose, scale marks distributed transversely are arranged on the support, a fine adjustment mechanism is installed on the support, and the device drives the linkage assembly through the servo motor, so that the cam rotates to push the movable base to slide on the transverse rod. The moving distance of the movable seat can be accurately controlled by matching with the scale marks on the bracket, so that the fine adjustment of the horizontal position of the flame spray gun is realized, the flame spray gun is accurately aligned to the pre-cutting position of a workpiece, the cutting precision is greatly improved, the situations of workpiece scrapping and reworking caused by the deviation of the cutting position are reduced, and the product quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure cutting technology, and in particular relates to a flame cutting device for steel structure buildings. Background Technology

[0002] The building materials of steel structures are cut using a flame cutting device. A flame cutting device is a thermal cutting device that uses the high temperature generated by the combustion of a mixture of fuel gas and oxygen to melt, remove slag, and cut the steel structure. The device heats the steel to its ignition point using a high-temperature flame generated by the combustion of the fuel gas and oxygen mixture. Subsequently, a high-pressure oxygen stream oxidizes and removes the metal in the heated area, thus achieving the cut.

[0003] Chinese patent discloses a flame cutting machine, publication number CN106513918A. The device includes a base and a worktable. The bottom of the worktable is fixedly connected to the top of the base. A cutting device is fixedly installed on one side of the base. The cutting device includes a fixed rod, a first connecting rod, and a second connecting rod. The top of the fixed rod has a groove, and a bearing is installed inside the groove. The bottom of the first connecting rod has a rotating shaft. One end of the rotating shaft is movably connected to the top of the fixed rod through a bearing. One end of the first connecting rod is movably connected to one end of the second connecting rod through a first pin. The other end of the second connecting rod is movably connected to one side of a flame nozzle through a second pin.

[0004] Existing flame cutting devices move the workpiece to the pre-cutting position under the flame gun head before cutting. However, due to the inherent precision errors in manual placement, existing cutting devices cannot fine-tune the cutting position. Relying on manual adjustment is inconvenient and inefficient. To solve these problems, it is necessary to design a flame cutting device for steel structure buildings. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing flame cutting devices cannot fine-tune the cutting position of the workpiece, and to propose a flame cutting device for steel structure buildings.

[0006] This utility model is implemented as follows: a flame cutting device for steel structure buildings includes two spaced-apart supports and a bracket. The bracket is fixedly connected to the sides of the two supports. A movable seat is provided above the bracket. Two horizontal bars are spaced apart vertically through the movable seat. The movable seat is slidably mounted on the horizontal bars. The ends of the horizontal bars are fixedly connected to the bracket. Elastic elements are fixedly connected to both sides of the movable seat. The ends of the elastic elements are fixedly connected to the bracket.

[0007] It also includes a flame cutting machine body, on which a flame gun is fixedly mounted. The flame cutting machine body is connected to the flame gun via a flexible hose. The flame gun is located above the support. The support has horizontally distributed scale lines. A fine-tuning mechanism is installed on the support. The fine-tuning mechanism is connected to the movable seat and is used to adjust the horizontal position of the flame gun.

[0008] As a preferred embodiment, the fine-tuning mechanism includes a cavity fixedly installed on the upper end of the movable seat, a support plate fixedly installed in the cavity, a vertical shaft rotatably installed on the support plate, a circular block fixedly installed on the vertical shaft, a servo motor fixedly installed on the upper end of the bracket, a linkage component installed on the output shaft of the servo motor, a cam provided on one side of the circular block, the cam being connected to the linkage component and the servo motor being used to drive the cam to rotate.

[0009] As a preferred embodiment, the linkage assembly includes a splined shaft fixedly connected to the output shaft end of the servo motor, a bushing splinedly connected to the splined shaft, a connecting plate, and an electric telescopic rod fixedly mounted on the bracket. One end of the splined shaft is inserted into the bushing and slidably mounted on the bushing. The bushing passes through the connecting plate and is rotatably mounted on the connecting plate. The output end of the electric telescopic rod is fixedly connected to the connecting plate.

[0010] As a preferred embodiment, a plurality of fan blades arranged in a circular array are fixedly installed at the lower end of the vertical shaft. All fan blades are located inside the cavity. A conduit is connected to and fixedly installed at the lower end of the cavity, and the conduit is positioned toward the cutting area below the flame gun.

[0011] As a preferred embodiment, the lower end of the catheter is configured to flare outwards.

[0012] As a preferred embodiment, a driven wheel is fixedly installed at the upper end of the vertical shaft, and a driving wheel is fixedly installed on the bushing. The driving wheel and the driven wheel are driven to mesh by the electric telescopic rod.

[0013] Compared with related technologies, the flame cutting device for steel structure buildings provided by this utility model has the following advantages:

[0014] This device uses a servo motor to drive a linkage component, causing a cam to rotate and push a movable seat to slide on a crossbar. Combined with the scale lines on the bracket, the movement distance of the movable seat can be precisely controlled, thereby enabling fine-tuning of the horizontal position of the flame torch. This ensures the flame torch is accurately aligned with the pre-cutting position on the workpiece, significantly improving cutting accuracy, reducing workpiece scrap and rework due to cutting position deviations, and enhancing product quality. Compared to manual adjustment of the cutting position, this device utilizes a mechanical structure for automated fine-tuning. Operators only need to start the servo motor and observe the scale lines to complete the position adjustment, making operation more convenient and the adjustment process faster and more accurate. This effectively improves the efficiency of cutting operations and reduces labor and time costs.

[0015] By installing fan blades at the lower end of the vertical shaft, and driving the drive wheel and driven wheel through an electric telescopic rod, the vertical shaft can rotate, causing the fan blades to rotate and generating airflow. Before cutting, the airflow can blow away impurities in the cutting area, such as dust and iron filings, preventing impurities from affecting the cutting quality and ensuring the stability of the cutting process and the flatness of the cut surface.

[0016] After cutting, the airflow generated by the fan blades accelerates the cooling rate of the cut area on the workpiece. This helps reduce thermal deformation caused by high temperatures. The lower end of the duct is designed to flare outwards, expanding the airflow coverage and allowing the airflow to act more evenly on the cutting area, further improving impurity removal and cooling efficiency, and ensuring that the entire cutting area receives effective auxiliary treatment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0020] Figure 4 This is an enlarged schematic diagram of a portion of the structure at the support in this utility model;

[0021] Figure 5 This is an enlarged cross-sectional view of a portion of the structure of the cavity in this utility model;

[0022] Figure 6 This is a schematic diagram of the meshing state of the driven wheel and the driving wheel in this utility model.

[0023] In the diagram: 1. Support; 2. Bracket; 3. Movable seat; 4. Crossbar; 5. Flame cutting machine body; 6. Hose; 7. Flame torch; 8. Elastic element; 9. Scale line; 10. Cavity; 11. Support plate; 12. Vertical shaft; 13. Circular block; 14. Servo motor; 15. Cam; 16. Splined shaft; 17. Bushing; 18. Connecting plate; 19. Electric telescopic rod; 20. Fan blade; 21. Guide tube; 22. Driven wheel; 23. Driving wheel; 24. Steel structure building component. Detailed Implementation

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] A preferred embodiment of the flame cutting device for steel structure buildings provided by this utility model is, for example... Figures 1 to 6 As shown:

[0027] A flame cutting device for a steel structure building includes two spaced-apart supports 1 and brackets 2. The brackets 2 are fixedly connected to the sides of the two supports 1. A movable seat 3 is provided above the brackets 2. Two horizontal bars 4 are spaced apart vertically through the movable seat 3. The movable seat 3 is slidably mounted on the horizontal bars 4. The ends of the horizontal bars 4 are fixedly connected to the brackets 2. Elastic elements 8 are fixedly connected to both sides of the movable seat 3. The ends of the elastic elements 8 are fixedly connected to the brackets 2.

[0028] It also includes a flame cutting machine body 5, a flame gun 7 fixedly installed on a movable base 3, a flame cutting machine body 5 connected to a flame gun 7 via a hose 6, a flame gun 7 located above a support 1, a bracket 2 with horizontally distributed scale lines 9, a fine-tuning mechanism installed on the bracket 2, the fine-tuning mechanism being connected to the movable base 3 and used to adjust the horizontal position of the flame gun 7.

[0029] The fine-tuning mechanism includes a cavity 10 fixedly installed on the upper end of the movable seat 3. A support plate 11 is fixedly installed inside the cavity 10. A vertical shaft 12 is rotatably installed on the support plate 11. A circular block 13 is fixedly installed on the vertical shaft 12. A servo motor 14 is fixedly installed on the upper end of the bracket 2. A linkage component is installed on the output shaft of the servo motor 14. A cam 15 is provided on one side of the circular block 13. The cam 15 is connected to the linkage component, and the servo motor 14 is used to drive the cam 15 to rotate.

[0030] The linkage assembly includes a splined shaft 16 fixedly connected to the output shaft end of the servo motor 14, a bushing 17 splinedly connected to the splined shaft 16, a connecting plate 18, and an electric telescopic rod 19 fixedly mounted on the bracket 2. One end of the splined shaft 16 is inserted into the bushing 17 and slidably mounted on the bushing 17. The bushing 17 passes through the connecting plate 18 and is rotatably mounted on the connecting plate 18. The output end of the electric telescopic rod 19 is fixedly connected to the connecting plate 18.

[0031] A schematic diagram of the device's operation can be found here. Figure 1 and Figure 2 As shown, the steel structure building component 24 to be cut is placed at a suitable position on two supports 1, and the pre-cut position of the workpiece is roughly moved to the area below the flame gun 7 by manual operation.

[0032] When fine-tuning the horizontal position of the flame gun 7, the servo motor 14, which is fixedly mounted on the upper end of the bracket 2, is activated. The output shaft of the servo motor 14 begins to rotate, driving the linkage component connected to its output shaft to work.

[0033] In the linkage assembly, the spline shaft 16 rotates together with the output shaft of the servo motor 14. Since the spline shaft 16 is splinedly connected to the bushing 17, in this state, the cam 15 is in contact with one side of the round block 13, while the driving wheel 23 is not engaged with the driven wheel 22. As the spline shaft 16 rotates, it drives the bushing 17 to rotate, which in turn drives the cam 15 to rotate.

[0034] During the rotation of cam 15, its contour continuously changes its contact position with the circular block 13, thereby applying a force to the circular block 13. The circular block 13, vertical shaft 12, cavity 10, and movable seat 3 move synchronously. Therefore, the rotation of cam 15 pushes the movable seat 3 to slide on the crossbar 4, and the elastic elements 8 on both sides deform. By observing the horizontally distributed scale lines 9 on the bracket 2, the device can more accurately control the moving distance of the movable seat 3, thereby achieving fine adjustment of the horizontal position of the flame torch 7 and accurately aligning it with the pre-cutting position of the workpiece.

[0035] After the horizontal position of the flame torch 7 is finely adjusted, the flame cutting machine body 5 is started. The flame cutting machine body 5 supplies the gas required for cutting, such as gas combustion and oxygen, to the flame torch 7 through the hose 6. The flame torch 7 sprays out a high-temperature flame to cut the steel structure workpiece located below it and in an accurate position.

[0036] In a further preferred embodiment of this utility model:

[0037] like Figures 4 to 6As shown, multiple fan blades 20 arranged in a circular array are fixedly installed at the lower end of the vertical shaft 12. All fan blades 20 are located within the cavity 10. A guide tube 21 is connected to and fixedly installed at the lower end of the cavity 10, with the guide tube 21 facing the cutting area below the flame gun 7. The lower end of the guide tube 21 is flared outwards. A driven wheel 22 is fixedly installed at the upper end of the vertical shaft 12, and a driving wheel 23 is fixedly installed on the bushing 17. The driving wheel 23 engages with the driven wheel 22 via an electric telescopic rod 19.

[0038] When airflow is needed to assist operations (such as blowing away impurities in the cutting area or cooling the cut workpiece) using the fan blades 20 at the lower end of the vertical shaft 12, the electric telescopic rod 19 is activated. The output end of the electric telescopic rod 19 pushes the connecting plate 18 to move, and the connecting plate 18 drives the bushing 17 to move, so that the driving wheel 23 fixedly mounted on the bushing 17 meshes with the driven wheel 22 fixedly mounted on the upper end of the vertical shaft 12. (Reference) Figure 6 In the state shown, the driving wheel 23 is engaged with the driven wheel 22, and the cam 15 is offset from the circular block 13.

[0039] Servo motor 14 drives spline shaft 16 to rotate, spline shaft 16 drives bushing 17 to rotate, bushing 17 drives vertical shaft 12 to rotate through meshing transmission between drive wheel 23 and driven wheel 22. Multiple fan blades 20 at the lower end of vertical shaft 12 rotate accordingly, generating airflow. The airflow is blown towards the cutting area below flame torch 7 through duct 21 (the lower end of duct 21 is set to expand outward to increase the airflow coverage) which is connected and fixedly installed at the lower end of cavity 10. Before cutting, the airflow blows away impurities in the cutting area; after cutting, the airflow accelerates the cooling rate of the cutting position on the workpiece.

[0040] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0041] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A flame cutting apparatus for a steel construction building, characterized by, The utility model provides a flame cutting machine, including two interval support (1) and support (2), support (2) fixedly connected in the side of two support (1), the movable seat (3) is equipped above support (2), the movable seat (3) is passed through two upper and lower interval horizontal pole (4), the movable seat (3) sliding installation is in horizontal pole (4), horizontal pole (4) end fixedly connected in support (2), movable seat (3) both sides are fixedly connected with elastic element (8), elastic element (8) end fixedly connected in support (2), Still include flame cutting machine main part (5), the movable seat (3) is fixedly installed with flame spraying gun (7), flame cutting machine main part (5) is communicated with flame spraying gun (7) through hose (6), flame spraying gun (7) is located above support (1), the scale line (9) of lateral distribution is provided on support (2), the fine adjustment mechanism is installed on support (2), the fine adjustment mechanism is connected with movable seat (3) and is used for adjusting the horizontal position of flame spraying gun (7).

2. The apparatus for flame cutting of a steel construction building according to claim 1, characterized in that, The fine adjustment mechanism includes the cavity (10) of fixed installation in movable seat (3) upper end, the support piece (11) is fixedly installed in the cavity (10), the vertical shaft (12) is rotatably installed on the support piece (11), the round block (13) is fixedly installed on the vertical shaft (12), the servo motor (14) is fixedly installed on the support (2) upper end, the linkage assembly is installed on the output shaft of servo motor (14), one side of the round block (13) is equipped with cam (15), the cam (15) is connected with linkage assembly and servo motor (14) is used to drive the rotation of cam (15).

3. The apparatus for flame cutting of a steel construction building as claimed in claim 2, wherein The linkage assembly includes the spline shaft (16) of fixed connection in the output shaft end of servo motor (14), the shaft sleeve (17) of spline connection with spline shaft (16), the connecting plate (18) and the electric telescopic rod (19) of fixed installation on support (2), one end of spline shaft (16) is inserted into the shaft sleeve (17) and is slidingly installed in the shaft sleeve (17), the shaft sleeve (17) penetrates the connecting plate (18) and is rotatably installed on the connecting plate (18), and the output end of the electric telescopic rod (19) is fixedly connected with the connecting plate (18).

4. The apparatus for flame cutting of a steel construction building according to claim 3, wherein The lower end of the vertical shaft (12) is fixedly installed with a plurality of fan leaves (20) in circumferential array distribution, the fan leaves (20) are located in the cavity (10), and the conduit (21) is communicated and fixedly installed at the lower end of the cavity (10).

5. The apparatus for flame cutting of a steel construction building as defined in claim 4, wherein The lower end of the conduit (21) is provided in an outwardly expanding shape.

6. The apparatus for flame cutting of a steel construction building as defined in claim 5, wherein The upper end of the vertical shaft (12) is fixedly installed with a driven wheel (22), the shaft sleeve (17) is fixedly installed with a driving wheel (23), and the driving wheel (23) is engaged with the driven wheel (22) by the electric telescopic rod (19).

Images