A device for cutting circular steel

Abstract

This utility model discloses a device for cutting circular steel, characterized in that it includes a fixed part, a movable part, a first connecting part, a second connecting part, and an oxy-fuel cutting gun; the fixed part is placed on an iron plate, the movable part is connected to the fixed part through the first connecting part, and the oxy-fuel cutting gun is connected to the movable part through the second connecting part; the second connecting part includes a second shaft, a second rolling bearing, a second positioning sleeve, a locking nut, and a rotating drum, the second shaft is connected to the cross arm, and the locking nut fixes the second shaft and the rotating drum; the second rolling bearing is connected between the second shaft and the rotating drum, and the second positioning sleeve is connected between the second shaft and the second rolling bearing; the oxy-fuel cutting gun is fixed to the lower end of the rotating drum. This device for cutting circular steel not only effectively ensures the accuracy of the arc when cutting a circle, but also significantly improves the convenience and comfort of operation.

Description

Technical Field

[0001] This utility model belongs to the field of ship repair technology, and specifically relates to a device for cutting circular steel. Background Technology

[0002] In shipyards, gas cutting of steel plates is the most common operation, with the cutting of round steel plates being particularly frequent. Especially when working on-site on board, it is inconvenient to use large automated cutting equipment. Typically, cutting is done manually by holding a gas cutting torch and following a pre-drawn path. However, this method not only subjects workers to significant physical exertion, but also often results in dimensional deviations in the finished products.

[0003] Therefore, this application proposes a device for cutting circular steel, which facilitates the smooth cutting of circular plates. Utility Model Content

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A device for cutting circular steel includes a fixed part, a movable part, a first connecting part, a second connecting part, and an oxy-fuel cutting gun; the fixed part is placed on an iron plate, the movable part is connected to the fixed part through the first connecting part, and the oxy-fuel cutting gun is connected to the movable part through the second connecting part;

[0006] The fixing part includes a base, a positioning rod, and a cross arm; the upper end of the base is connected to the positioning rod, and one end of the cross arm is perpendicularly connected to the positioning rod.

[0007] The movable part includes a rotating arm, and the movable part is movably connected to the other end of the horizontal arm through the first connecting part;

[0008] The second connecting part includes a second shaft, a second rolling bearing, a second positioning sleeve, a locking nut, and a rotating cylinder. The second shaft is connected to the cross arm, and the locking nut fixes the second shaft and the rotating cylinder. The second rolling bearing is connected between the second shaft and the rotating cylinder, and the second positioning sleeve is connected between the second shaft and the second rolling bearing.

[0009] The gas cutting gun is fixed to the lower end of the rotating drum.

[0010] As a further embodiment of this utility model, the fixing part further includes a first screw and an adjusting nut. The first screw is disposed at the upper end of the base and parallel to the positioning rod. The first screw is perpendicularly connected to the cross arm through the adjusting nut.

[0011] As a further embodiment of this utility model, the fixing part further includes a limiting rod, and the limiting rod is connected between the first screw and the positioning rod.

[0012] As a further embodiment of this utility model, the fixing part further includes a magnet, and the magnet is embedded in the lower end of the base.

[0013] As a further embodiment of this utility model, the moving part further includes a second screw, the rotating arm is connected in parallel to the second screw, and the second connecting part is connected to the second screw.

[0014] As a further embodiment of this invention, the rotating arm is provided with scale values.

[0015] As a further embodiment of this utility model, the first connecting part includes a first shaft, a first rolling bearing, a first positioning sleeve, a pressure cap, and a bearing sleeve; the first rolling bearing is connected to the outer periphery of the first shaft, the pressure cap fixes the first rolling bearing and the first rolling bearing on the cross arm, the first rolling bearing is connected between the first shaft and the rotating drum, the first positioning sleeve is connected between the first shaft and the first rolling bearing, and the bearing sleeve is connected to the outer periphery of the bearing.

[0016] As a further embodiment of this invention, the second connecting part further includes an indicator needle, which is connected to the shaft.

[0017] As a further embodiment of this utility model, the second connecting part further includes a detachable positioning plate, and the shaft and the rotating arm are connected through the positioning plate.

[0018] The beneficial effects of this utility model are:

[0019] A device for cutting circular steel includes a rotating arm that rotates 360 degrees around the horizontal arm connection point, drawing a circular trajectory. A rotating drum at the second connection point connects to an oxy-acetylene cutting torch and can rotate on its own axis. In practical use, through proper adjustment, the torch handle and power cord can be aligned in the same direction, allowing operators to work from a fixed position without significant physical movement. This device not only effectively ensures the accuracy of the arc when cutting circles but also significantly improves the convenience and comfort of operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a device for cutting circular steel.

[0021] Figure 2 yes Figure 1 AA section view;

[0022] Figure 3 yes Figure 1 BB cross-sectional view;

[0023] Figure 4 yes Figure 2 CC section view;

[0024] Figure 5 yes Figure 1 A magnified view of a portion of the image;

[0025] Figure 6 This is a schematic diagram of the application position 1 of a device for cutting circular steel.

[0026] Figure 7 This is a schematic diagram of the usage position 2 of a device for cutting circular steel.

[0027] Figure 8 yes Figure 7 A top-down view of the scene;

[0028] As shown in the figure:

[0029] 1-Fixing part, 11-Base, 12-Positioning rod, 13-Cross arm, 14-First screw, 15-Adjusting nut, 16-Limiting rod, 17-Magnet;

[0030] 2-Moving part, 21-Rotating arm, 211-Scale value, 22-Second screw;

[0031] 3-First connecting part, 31-First shaft, 32-First rolling bearing, 33-First positioning sleeve, 34-Gland cover, 35-Bearing sleeve;

[0032] 4-Second connecting part, 41-Second shaft, 42-Second rolling bearing, 43-Second positioning sleeve, 44-Locking nut, 45-Rotating drum, 46-Indicator needle, 47-Removable positioning plate;

[0033] 5-Gas cutting gun;

[0034] 6-Iron plate;

[0035] 7-Cutting trajectory. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "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.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0040] like Figure 1-8 As shown, a device for cutting circular steel includes a fixed part 1, a movable part 2, a first connecting part 3, a second connecting part 4, and an oxy-fuel cutting gun 5; the fixed part 1 is placed on an iron plate 6, the movable part 2 is connected to the fixed part 1 through the first connecting part 3, and the oxy-fuel cutting gun 5 is connected to the movable part 2 through the second connecting part 4.

[0041] The fixed part 1 includes a base 11, a positioning rod 12, and a cross arm 13; the upper end of the base 11 is connected to the positioning rod 12, and one end of the cross arm 13 is perpendicularly connected to the positioning rod 12. The movable part 2 includes a rotating arm 21, which is movably connected to the other end of the cross arm 13 via a first connecting part 3. The second connecting part 4 includes a second shaft 41, a second rolling bearing 42, a second positioning sleeve 43, a locking nut 44, and a rotating drum 45. The second shaft 41 is connected to the cross arm 13, and the locking nut 44 fixes the second shaft 41 and the rotating drum 45; the second rolling bearing 42 is connected between the second shaft 41 and the rotating drum 45, and the second positioning sleeve 43 is connected between the second shaft 41 and the second rolling bearing 42. The gas cutting torch 5 is fixed to the lower end of the rotating drum 45.

[0042] Specifically, such as Figure 7 and8 As shown, the rotating arm 21 rotates 360 degrees around the connection of the horizontal arm 13, drawing a circular trajectory. The rotating cylinder 45 of the second connecting part 4 is connected to the gas cutting gun 5 and can rotate on its own. In actual use, through reasonable adjustment, the handle and power cord of the gas cutting gun 5 can be aligned in the same direction, so that the operator can operate from a fixed position without significantly changing their body movements. This device for cutting circular steel not only effectively ensures the accuracy of the arc when cutting a circle, but also significantly improves the convenience and comfort of operation.

[0043] In this embodiment, as Figure 1-4 As shown, the fixing part 1 also includes a first screw 14 and an adjusting nut 15. The first screw 14 is located at the upper end of the base 11 and is parallel to the positioning rod 12. The first screw 14 is vertically connected to the cross arm 13 through the adjusting nut 15. Specifically, the height of the cross arm 13 is not fixed but can be flexibly adjusted according to actual needs. The positioning rod 12 and the first screw 14 are provided on the base 11. The cross arm 13 can move up and down on the positioning rod 12 and the first screw 14. After adjusting to a suitable height, the cross arm 13 can be locked and fixed by tightening the adjusting nut 15 to ensure its stability during use.

[0044] In this embodiment, as Figure 1 As shown, the fixing part 1 also includes a limiting rod 16, which connects the first screw 14 and the positioning rod 12. Since the gas cutting gun 5 and the steel plate require a certain distance, during the height adjustment operation of the horizontal arm 13, it only needs to be adjusted up and down while maintaining a suitable distance above the positioning rod 12 and the first screw 14 to meet the usage requirements. Because the horizontal arm 13 itself is quite heavy, it may sink during adjustment due to gravity. To effectively prevent the horizontal arm 13 from sinking onto the base 11, a limiting rod 16 is provided, setting a minimum height for the horizontal arm 13. When the horizontal arm 13 descends to this minimum height, the limiting rod 16 will act as a stop, ensuring that the horizontal arm 13 will not continue to sink, thereby ensuring the safety and stability of the entire device.

[0045] In this embodiment, as Figure 1 As shown, the fixing part 1 also includes a magnet 17, and the lower end of the base 11 is embedded with a magnet 17. Specifically, the object to be cut is an iron plate 6, and the base 11 has a magnet 17 that is attracted to the iron plate 6. The magnet is attracted to the surface of the iron plate 6, thereby fixing the position of the device and locking the cutting operation area.

[0046] In this embodiment, as Figure 1-4As shown, the moving part 2 also includes a second screw 22, which is connected in parallel to the rotating arm 21. The second connecting part 4 is connected to the second screw 22. Specifically, the cutting radius of the gas cutting torch 5 is determined by its installation position on the rotating arm 21. The second screw 22 facilitates the adjustment of the position of the gas cutting torch 5. Connecting the second connecting part 4 to the second screw 22 moves the position of the gas cutting torch 5. In other embodiments, a slide rail can be installed on the rotating arm 21, and the second connecting part 4 moves on the slide rail.

[0047] In this embodiment, as Figure 5 As shown, the rotating arm 21 is provided with a scale value 211. Specifically, the scale value 211 facilitates the determination of the radius of the circular path cut by the gas cutting torch 5, eliminating the need for measurement with a ruler.

[0048] In this embodiment, as Figure 1 As shown, the first connecting part 3 includes a first shaft 31, a first rolling bearing 32, a first positioning sleeve 33, a pressure cap 34, and a bearing sleeve 25. The first rolling bearing 32 is connected to the outer periphery of the first shaft 31. The pressure cap 34 fixes the first rolling bearing 32 and the first rolling bearing 32 to the cross arm 13. The first rolling bearing 32 is connected between the first shaft 31 and the rotating cylinder 45. The first positioning sleeve 33 is connected between the first shaft 31 and the first rolling bearing 32. The bearing sleeve 25 is connected to the outer periphery of the bearing. Specifically, the first connecting part 3 realizes the rotational movement of the rotating arm 21, which rotates around the axis of the first shaft 31. The bearing sleeve 25 is interference-fitted with the shaft and bearing housing, maintaining a relatively fixed position in both the axial and radial directions, accurately fixing the shaft at the center position of the bearing. As an isolation layer between the bearing and the external environment, the bearing sleeve 25 can effectively prevent dust, moisture, metal debris, and other impurities from entering the bearing, thereby reducing bearing wear and extending the bearing's service life.

[0049] In this embodiment, as Figure 1 and 5 As shown, the second connecting part 4 also includes an indicator needle 46, which is connected to the shaft. Specifically, the indicator needle 46 is located on one side of the second connecting part 4 and is protruding, clearly distinguishing the outer contour of the second connecting part 4. Workers can use it as a reference for the direction of the electrical wire of the gas cutting gun 5. Furthermore, the pointer's tip points upwards, indicating the scale value 211 of the rotating arm 21, facilitating the setting of the radius value required for cutting a circle.

[0050] In this embodiment, as Figure 1 and 3As shown, the second connecting part 4 also includes a detachable positioning plate 47, through which the shaft and the rotating arm 21 are connected. Specifically, the detachable positioning plate 47 is used to connect the shaft and the rotating arm 21, allowing them to be tightly and stably integrated, while also meeting the needs of subsequent maintenance, component replacement, and other operations, greatly improving work efficiency and operational convenience.

[0051] In summary, this device for cutting circular steel cleverly integrates the principles of rotating shaft, threaded adjustment, and magnetic attraction, enabling the ring-positioned gas cutting torch nozzle 5 to cut circular steel around the center of the rotating shaft. With this device, operators can easily adjust the gas cutting torch nozzle 5 to the target cutting position at any time, and can also precisely control the effective distance between the gas cutting torch nozzle 5 and the steel plate being cut through the threaded adjustment function, thereby achieving high-precision, high-quality cutting of circular steel plates.

[0052] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for cutting circular steel material, characterized by, It includes a fixed part, a movable part, a first connecting part, a second connecting part, and an oxy-fuel cutting gun; the fixed part is placed on an iron plate, the movable part is connected to the fixed part through the first connecting part, and the oxy-fuel cutting gun is connected to the movable part through the second connecting part; The fixing part includes a base, a positioning rod, and a cross arm; the upper end of the base is connected to the positioning rod, and one end of the cross arm is perpendicularly connected to the positioning rod. The movable part includes a rotating arm, and the movable part is movably connected to the other end of the horizontal arm through the first connecting part; The second connecting part includes a second shaft, a second rolling bearing, a second positioning sleeve, a locking nut, and a rotating cylinder. The second shaft is connected to the cross arm, and the locking nut fixes the second shaft and the rotating cylinder. The second rolling bearing is connected between the second shaft and the rotating cylinder, and the second positioning sleeve is connected between the second shaft and the second rolling bearing. The gas cutting gun is fixed to the lower end of the rotating drum.

2. The apparatus for cutting a circular steel material according to claim 1, wherein The fixing part also includes a first screw and an adjusting nut. The first screw is disposed at the upper end of the base and is parallel to the positioning rod. The first screw is perpendicularly connected to the cross arm through the adjusting nut.

3. The apparatus for cutting a circular steel material according to claim 2, wherein The fixing part also includes a limiting rod, and the limiting rod is connected between the first screw and the positioning rod.

4. The apparatus for cutting a circular steel material according to claim 2 or 3, wherein The fixing part also includes a magnet, and the magnet is embedded in the lower end of the base.

5. The apparatus for cutting a circular steel material according to claim 1, wherein The moving part further includes a second screw, the rotating arm is connected in parallel to the second screw, and the second connecting part is connected to the second screw.

6. The device for cutting circular steel according to claim 1 or 5, characterized in that, The rotating arm is equipped with scale values.

7. The apparatus for cutting a circular steel material according to claim 1, wherein The first connecting part includes a first shaft, a first rolling bearing, a first positioning sleeve, a pressure cap, and a bearing sleeve; the first rolling bearing is connected to the outer periphery of the first shaft, the pressure cap fixes the first rolling bearing and the first rolling bearing on the cross arm, the first rolling bearing is connected between the first shaft and the rotating drum, the first positioning sleeve is connected between the first shaft and the first rolling bearing, and the bearing sleeve is connected to the outer periphery of the bearing.

8. The apparatus for cutting a circular steel material according to claim 7, wherein The second connecting part also includes an indicator needle, which is connected to the shaft.

9. The apparatus for cutting a circular steel material according to claim 8, wherein The second connecting part also includes a detachable positioning plate, through which the shaft and the rotating arm are connected.

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