Cutting torch auxiliary device for cutting round steel plate

Abstract

The utility model belongs to the technical field of circular steel plate cutting, and particularly relates to a cutting torch auxiliary device for cutting a circular steel plate. Comprising a fixing plate, a vertical rod is welded to the fixing plate, a telescopic rod is inserted into the vertical rod, a rotating shaft is rotationally connected to the telescopic rod, a ruler is fixed to the lower portion of the rotating shaft, a positioning rod sleeves the ruler, and a cutting torch frame is rotationally connected to the lower portion of the positioning rod. The steel plate cutting device can assist in cutting round steel plates, and is simple in structure, high in cutting precision, high in efficiency, capable of being operated by only one person, stable in cutting process and high in safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of circular steel plate cutting, in particular to a cutting torch auxiliary device for cutting circular steel plates. Background Art

[0002] Steel plates are typically cut using a cutting torch. However, when cutting circular plates, the curvature makes it difficult to accurately control the cutting path, especially for large diameters. This requires multiple workers to coordinate and manually control the torch along the predetermined path. This is not only labor-intensive but also difficult to ensure accurate and consistent cutting. Furthermore, the lack of effective auxiliary tools exposes workers to significant safety risks during operation. Therefore, developing a torch-assisted device that can improve cutting accuracy, efficiency, and safety is of great practical significance. Summary of the Invention

[0003] The purpose of the utility model is to provide a cutting torch auxiliary device for cutting circular steel plates, so as to solve the problems existing in the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A cutting torch auxiliary device for cutting circular steel plates includes a fixed plate, a vertical pole welded on the fixed plate, a telescopic rod plugged into the vertical pole, a rotating shaft rotatably connected to the telescopic rod, a ruler fixed below the rotating shaft, a positioning rod sleeved on the ruler, and a cutting torch frame rotatably connected below the positioning rod.

[0006] Furthermore, the vertical pole is in the shape of a circular tube, and a fixing bolt is threadedly connected through the outer wall of the upper end of the vertical pole.

[0007] Furthermore, the telescopic rod is an L-shaped round tube, one end of the telescopic rod is inserted into the round tubular inner cavity of the vertical pole, the bolt tail of the fixing bolt is connected to the vertical pole and abuts against the outer wall of the telescopic rod, and the other end of the telescopic rod is welded with a vertically arranged sleeve.

[0008] Furthermore, the shaft bearing is connected in the sleeve, and the shaft is rotatably connected to the telescopic rod through the sleeve.

[0009] Furthermore, one end of the ruler is horizontally welded to the bottom of the rotating shaft, a scale mark is provided on the ruler, and the other end of the ruler is welded to the position of the rotating shaft below the sleeve through an oblique support.

[0010] Furthermore, the upper and lower ends of the positioning rod are hollowed out. The hollow shape of the upper end of the positioning rod matches the outline shape of the ruler. An observation hole is opened on the side wall of the upper end of the positioning rod. A rotating bolt is passed through the hollow of the lower end of the positioning rod. The bolt tail of the rotating bolt passes through the positioning rod and is welded to the cutting torch frame. The positioning rod is connected to the cutting torch frame by rotating the rotating bolt. A positioning bolt is passed through the upper end of the positioning rod, and the bolt tail of the positioning bolt abuts against the outer wall of the ruler.

[0011] Furthermore, the cutting torch frame is in a U-shaped structure, and a through hole is provided at the bottom of the cutting torch frame, and the diameter of the through hole is larger than the diameter of the cutting torch nozzle.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model can assist in cutting circular steel plates, has a simple structure, high cutting precision and efficiency, only requires one person to operate, and the cutting process is stable and safe.

[0014] 2. The torch frame protects the mouth of the torch, and the flame direction during cutting is always downward, which is safe.

[0015] 3. The cutting torch frame can be rotated on the positioning rod by rotating the bolt, making the cutting torch more convenient to operate.

[0016] 4. The telescopic rod is height-adjustable to adapt to cutting of different steel plates.

[0017] 5. With the central axis of the rotating shaft as the axis, the positioning rod and ruler as the rotating arm, the cutting can be performed accurately.

[0018] 6. The positioning rod can slide on the ruler, so that circular steel plates of different diameters can be cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the utility model.

[0020] Figure 2 This utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0021] Figure 3 This utility model Figure 1 Schematic diagram of the structure at point B.

[0022] Among them: 1. Fixed plate; 2. Vertical pole; 3. Telescopic rod; 4. Rotating shaft; 5. Ruler; 6. Positioning rod; 7. Cutting torch frame; 8. Fixing bolt; 9. Sleeve; 10. Scale mark; 11. Diagonal support; 12. Observation hole; 13. Rotating bolt; 14. Through hole; 15. Positioning bolt. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] like Figure 1-3As shown, a cutting torch auxiliary device for cutting circular steel plates includes a fixed plate 1, a vertical rod 2 is welded on the fixed plate 1, a telescopic rod 3 is inserted into the vertical rod 2, a rotating shaft 4 is rotatably connected to the telescopic rod 3, a scale 5 is fixed below the rotating shaft 4, a positioning rod 6 is sleeved on the scale 5, and a cutting torch frame 7 is rotatably connected below the positioning rod 6.

[0025] The vertical pole 2 is in the shape of a circular tube, and a fixing bolt 8 is threadedly connected to the outer wall of the upper end of the vertical pole 2.

[0026] The telescopic rod 3 is an L-shaped circular tube. One end of the telescopic rod 3 is inserted into the cylindrical inner cavity of the vertical rod 2. The tail of the fixing bolt 8 is threaded onto the vertical rod 2 and abuts against the outer wall of the telescopic rod 3. The other end of the telescopic rod 3 is welded to a vertical sleeve 9. The vertical tube, telescopic tube, and fixing bolt 8 work together to adjust the height, allowing the utility model to cut at different heights.

[0027] The rotating shaft 4 is connected to the sleeve 9 by a bearing, and the rotating shaft 4 is rotatably connected to the telescopic rod 3 through the sleeve 9. The rotating shaft 4 can rotate freely in the sleeve 9, which is also the center of the cutting track of the cutting torch.

[0028] One end of the scale 5 is welded horizontally to the bottom of the rotating shaft 4. The scale 5 is provided with a scale mark 10. The other end of the scale 5 is welded to the part of the rotating shaft 4 below the sleeve 9 through a diagonal brace 11. The scale 5 is the radius of the cutting path of the cutting torch, and the value of the radius is read by the scale mark 10.

[0029] The top and bottom ends of the positioning rod 6 are hollowed out. The hollowed-out shape of the top end of the positioning rod 6 matches the outline of the scale 5. An observation hole 12 is opened in the side wall of the top end of the positioning rod 6. A rotating bolt 13 is inserted into the hollowed-out shape of the bottom end of the positioning rod 6. The bolt end of the rotating bolt 13 passes through the positioning rod 6 and is welded to the cutting torch frame 7. The positioning rod 6 is rotatably connected to the cutting torch frame 7 via the rotating bolt 13. A positioning bolt 15 is threaded through the top end of the positioning rod 6. The bolt end of the positioning bolt 15 abuts the outer wall of the scale 5. The positioning rod 6 can move back and forth on the scale 5. The positioning bolt 15 is tightened to fix the positioning rod 6, thereby determining the cutting radius of the cutting torch.

[0030] The torch frame 7 is in a square shape, with a through hole 14 at its bottom. The diameter of through hole 14 is larger than the diameter of the torch nozzle. The torch frame 7 can be rotated on the positioning rod 6 by rotating the bolt 13, making the torch easier to operate. Through hole 14 is used to prevent the nozzle of the torch from being damaged.

[0031] The working principle of this utility model is:

[0032] When in use, place the utility model near the cutting circular trajectory, preferably with the steel plate suspended, for better cutting. Tighten the fixing nut to adjust the height of the telescopic rod 3 up and down so that the distance between the through hole 14 and the steel plate is appropriate, and the rotating shaft 4 is aligned with the center of the circular trajectory. Tighten the fixing nut to fix the telescopic rod 3. Tighten the positioning bolt 15 and slide the positioning rod 6 on the ruler 5 according to the radius of the cutting trajectory. Read the value from the observation hole 12. When the appropriate value is reached, tighten the positioning bolt 15 to fix the radius of the cutting trajectory. Place the nozzle of the cutting torch into the through hole 14, hold the cutting torch handle, and push the cutting torch after firing. Rotate the cutting steel plate with the center axis of the rotating shaft 4 as the axis to cut a circular steel plate of the appropriate size.

[0033] The above-described embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements to the technical solution of the present invention made by a person of ordinary skill in the art without departing from the design concept of the present invention shall fall within the scope of protection of the present invention.

[0034] The technology, shape and structure that are not described in detail in this utility model are all well-known technologies.

Claims

1. A cutting torch auxiliary device for cutting circular steel plates, characterized in that: It includes a fixed plate, a vertical pole is welded on the fixed plate, a telescopic rod is inserted on the vertical pole, a rotating shaft is rotatably connected to the telescopic rod, a ruler is fixed below the rotating shaft, a positioning rod is sleeved on the ruler, and a cutting torch frame is rotatably connected below the positioning rod.

2. The cutting torch auxiliary device for cutting round steel plates according to claim 1, characterized in that: The vertical pole is in the shape of a circular tube, and a fixing bolt is threadedly connected through the outer wall of the upper end of the vertical pole.

3. The cutting torch auxiliary device for cutting round steel plates according to claim 2, characterized in that: The telescopic rod is an L-shaped round tube. One end of the telescopic rod is inserted into the tubular inner cavity of the vertical pole. The bolt tail of the fixing bolt is connected to the vertical pole and abuts against the outer wall of the telescopic rod. The other end of the telescopic rod is welded with a vertically arranged sleeve.

4. The cutting torch auxiliary device for cutting circular steel plates according to claim 3, characterized in that: The rotating shaft bearing is connected in the sleeve, and the rotating shaft is rotatably connected to the telescopic rod through the sleeve.

5. The cutting torch auxiliary device for cutting round steel plates according to claim 4, characterized in that: One end of the ruler is horizontally welded to the bottom of the rotating shaft, and a scale mark is provided on the ruler. The other end of the ruler is welded to the position of the rotating shaft below the sleeve through an oblique support.

6. The cutting torch auxiliary device for cutting round steel plates according to claim 5, characterized in that: The upper and lower ends of the positioning rod are hollowed out. The hollow shape of the upper end of the positioning rod matches the outline shape of the ruler. An observation hole is opened on the side wall of the upper end of the positioning rod. A rotating bolt is passed through the hollow of the lower end of the positioning rod. The bolt tail of the rotating bolt passes through the positioning rod and is welded to the cutting torch frame. The positioning rod is connected to the cutting torch frame by rotating the rotating bolt. A positioning bolt is passed through the upper end of the positioning rod, and the bolt tail of the positioning bolt abuts against the outer wall of the ruler.

7. The cutting torch auxiliary device for cutting round steel plates according to claim 6, characterized in that: The cutting torch frame is in a U-shaped structure, and a through hole is provided at the bottom of the cutting torch frame, the diameter of the through hole being larger than the diameter of the cutting torch nozzle.

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