Gas cutting circle cutting device

By designing the air cutting circle device, the precise rotation of the manual cutting gun is achieved using universal wheels and adjustment rulers, which solves the problem of poor circular cutting accuracy and improves cutting accuracy and working efficiency.

CN222818109UActive Publication Date: 2025-05-02SHANXI LANHUA SCI TECH VENTURE
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Patent Information

Application Number
CN202421475789.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-26
Publication Date
2025-05-02
Estimated Expiration
2034-06-26

AI Technical Summary

Technical Problem

During the production of metal structures, circular cutting requires marking and cutting along the line, resulting in unstable operation of workers, making it difficult to ensure accurate cutting and affect product quality.

Method used

An air-cutting circular device is designed, including a rotating first horizontal rod and a second horizontal rod, and the precise rotation of the manual cutting gun is realized through a universal wheel and an adjustment ruler, eliminating the steps of cutting the circle before marking and rear trimming.

Benefits of technology

The geometric circle is cut, which improves cutting accuracy and work efficiency and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222818109U_ABST
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Abstract

The utility model relates to the technical field of machining equipment, and discloses a gas cutting circle cutting device which comprises a first horizontal rod and a second horizontal rod which are rotationally connected, a vertical cone is vertically fixed to the lower surface of the free end of the first horizontal rod, and the free end of the second horizontal rod is fixedly connected with a horizontal cutting gun inserting plate. A manual cutting gun is vertically mounted on the cutting gun inserting plate through a cutting gun hole; a universal wheel is rotationally mounted at the joint of the first horizontal rod and the second horizontal rod; an adjusting ruler is installed between the first horizontal rod and the second horizontal rod in a sliding mode through locking frames, and the two locking frames are rotationally installed above the rod face of the first horizontal rod and the rod face of the second horizontal rod through a first rotating shaft and a second rotating shaft respectively and located at the same horizontal height. The device is high in cutting precision and high in working reliability, the length of the connecting rod capable of adjusting tightness is used for control, the requirement for the size of a cut circle can be met, the production efficiency is greatly improved, and the production cost is reduced.
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Description

Technical Field

[0001] The utility model relates to the field of mechanical processing equipment, in particular to a cutting auxiliary tool, specifically a gas cutting circle cutting device. Background Art

[0002] As metal structures are increasingly being manufactured and installed, manual cutting guns are becoming more and more common. In order to process the plates into standard sizes, cutting tools are usually used for cutting, and some of them require cutting round materials, curved edges, etc.

[0003] When cutting existing plates into circular materials, the method is to draw lines on the plates and then cut according to the marking marks. In actual operation, although the drawn circle (or arc) is very regular, it is difficult to ensure that the cut circle (or arc) is completely consistent with the drawn shape because the personnel need to hold the cutting gun for cutting, and the operation is unstable. That is, it is impossible to ensure that the cut circle is a circle in the geometric sense. After cutting, it is necessary to make continuous corrections, which places high demands on the workers. Not only is the work time-consuming and laborious, but it is also difficult to complete accurately, affecting product quality. Summary of the invention

[0004] The utility model provides a gas cutting circle device to solve the problems that in the process of metal structure manufacturing, circular cutting needs to be done after marking and then cutting along the line, which places extremely high demands on workers and is difficult to achieve cutting accuracy, and requires gradual corrections after the cutting is completed, which is time-consuming and labor-intensive, and affects the overall work efficiency.

[0005] The utility model is implemented by the following technical solutions:

[0006] A gas cutting circle device comprises a first horizontal rod and a second horizontal rod which are rotatably connected, a vertical cone is vertically fixed to the lower surface of the free end of the first horizontal rod, a horizontal cutting gun insertion plate is fixedly connected to the free end of the second horizontal rod, a manual cutting gun is vertically installed on the cutting gun insertion plate through a cutting gun hole; a universal wheel is rotatably installed at the connection between the first horizontal rod and the second horizontal rod; an adjusting ruler is slidably installed between the first horizontal rod and the second horizontal rod through a locking frame, and the two locking frames are rotatably installed above the rod surfaces of the first horizontal rod and the second horizontal rod through a first rotating shaft and a second rotating shaft respectively, and are at the same horizontal height.

[0007] During implementation, it includes a first horizontal rod and a second horizontal rod which are rotatably connected, the angle between the first horizontal rod and the second horizontal rod is adjustable, a vertical cone is vertically fixed to the lower surface of the free end of the first horizontal rod as the center of the cutting circle, the free end of the second horizontal rod is fixedly connected to a horizontal cutting gun plug-in plate for installing a manual cutting gun, the free end of the second horizontal rod is located above the cutting gun plug-in plate and is fixed by two bolts penetrating the second horizontal rod and the cutting gun plug-in plate, the cutting gun plug-in plate is vertically installed with a manual cutting gun through the cutting gun hole, and the rotation radius of the manual cutting gun is the cutting arc;

[0008] A universal wheel is rotatably installed at the connection between the first horizontal rod and the second horizontal rod, which supports the first horizontal rod and the second horizontal rod and pushes them to rotate with the vertical cone as the center. The first horizontal rod and the second horizontal rod are connected through a horizontal rod rotating shaft, and a wheel frame is rotatably installed at the lower part of the horizontal rod rotating shaft. The wheel frame can rotate freely along the horizontal rod rotating shaft, and a rotating wheel is installed in the wheel frame through the wheel axle. A locking pressure plate for locking the rotating wheel is installed on the wheel frame. The bottom of the universal wheel is in the same horizontal plane as the gun head of the manual cutting gun and the cone tip of the vertical cone.

[0009] An adjusting ruler is slidably installed between the first horizontal rod and the second horizontal rod through a locking frame, a sliding bearing structure is formed between the adjusting ruler and the locking frame, a triangle is formed between the adjusting ruler and the first horizontal rod and the second horizontal rod, and the radius of the cut circle is adjusted, and the end of the adjusting ruler is locked in the locking frame installed on the second horizontal rod, and the two locking frames are rotatably installed above the rod surfaces of the first horizontal rod and the second horizontal rod through the first rotating shaft and the second rotating shaft respectively, and are at the same horizontal height, and the height difference between the second rotating shaft and the first rotating shaft is the thickness of the first horizontal rod; the locking frame includes a horizontally arranged cylinder, and a threaded hole is penetrated through the upper side wall of the cylinder, and a fixing bolt is installed through the threaded hole, and a handle is fixed on the top of the fixing bolt for opening or closing the fixing bolt.

[0010] When in use, close the locking pressure plate and adjust the position of the adjusting ruler in the locking frame according to the radius of the circle cut. Specifically, unscrew the handle fixed on the first horizontal rod, move the adjusting ruler in the cylinder, and then screw the fixing bolt into the threaded hole vertically passing through the cylinder, so that the top of the fixing bolt presses on the scale surface of the adjusting ruler. At this time, the first horizontal rod, the second horizontal rod and the adjusting ruler form a triangle, so that the distance between the cone located at the free ends of the first horizontal rod and the second horizontal rod and the manual cutting gun is stable, and the circle cutting device is assembled.

[0011] When cutting a circle, open the locking pressure plate on the universal wheel, use the cone as a circle, push the device to rotate, and manually rotate the cutting gun to cut the circle, eliminating the steps of marking before cutting the circle and trimming after cutting the circle. The cut circle has a complete shape and higher precision, greatly improving work efficiency.

[0012] Compared with the prior art, this application has the following beneficial effects:

[0013] The utility model provides a gas cutting circle cutting device, which completes the rotation of the manual cutting gun by pushing the horizontal rod or the manual cutting gun, so that the circle cut by the manual cutting gun is a circle in the geometric sense, with high cutting accuracy and high working reliability. The length of the horizontal rod is controlled by an adjusting ruler, which can meet the requirements for the size of the cutting circle, greatly improving production efficiency and reducing production costs. The device has high cutting accuracy and high working reliability. The length of the connecting rod with adjustable tightness is controlled to meet the requirements for the size of the cutting circle, greatly improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram showing the overall structure of the device.

[0015] In the figure: 1-first horizontal rod, 2-second horizontal rod, 3-cutting gun plug-in plate, 4-horizontal rod rotating shaft, 5-adjusting ruler, 6-locking frame, 601-cylinder, 602-fixing bolt, 603-threaded hole, 604-handle, 7-vertical cone, 8-universal wheel, 801-wheel frame, 802-locking pressure plate, 803-rotating wheel, 9-manual cutting gun, 10-second rotating shaft. DETAILED DESCRIPTION

[0016] The utility model is described below in conjunction with specific embodiments.

[0017] A gas cutting circular cutting device, such as Figure 1 As shown: it includes a first horizontal rod 1 and a second horizontal rod 2 which are rotatably connected, the angle between the first horizontal rod 1 and the second horizontal rod 2 is adjustable, a vertical cone 7 is vertically fixed to the lower surface of the free end of the first horizontal rod 1 as the center of the cutting circle, a horizontal cutting gun plug-in plate 3 is fixedly connected to the free end of the second horizontal rod 2 for installing a manual cutting gun 9, the free end of the second horizontal rod 2 is located above the cutting gun plug-in plate 3 and is fixed by two bolts penetrating the second horizontal rod 2 and the cutting gun plug-in plate 3, the cutting gun plug-in plate 3 is vertically installed with a manual cutting gun 9 through the cutting gun hole, and the rotation radius of the manual cutting gun is a cutting arc;

[0018] A universal wheel 8 is rotatably installed at the connection between the first horizontal rod 1 and the second horizontal rod 2, which supports the first horizontal rod 1 and the second horizontal rod 2 while pushing them to rotate with the cone 7 as the center. The first horizontal rod 1 and the second horizontal rod 2 are connected through the horizontal rod rotating shaft 4, and a wheel frame 801 is rotatably installed at the lower part of the horizontal rod rotating shaft 4. The wheel frame 801 can rotate freely along the horizontal rod rotating shaft 4. A rotating wheel 803 is installed in the wheel frame 801 through the wheel axle, and a locking pressure plate 802 for locking the rotating wheel 803 is installed on the wheel frame 801. The bottom of the universal wheel 8 is in the same horizontal plane as the gun head of the manual cutting gun 9 and the cone tip of the cone 7.

[0019] An adjusting ruler 5 is slidably installed between the first horizontal rod 1 and the second horizontal rod 2 through a locking frame 6, and a sliding bearing structure is formed between the adjusting ruler and the locking frame. A triangle is formed between the adjusting ruler 5 and the first horizontal rod 1 and the second horizontal rod 2, thereby adjusting the radius of the cut circle. The end of the adjusting ruler 5 is locked in the locking frame 6 installed on the second horizontal rod 2. The two locking frames 6 are rotatably installed above the rod surfaces of the first horizontal rod 1 and the second horizontal rod 2 through the first rotating shaft and the second rotating shaft 10 respectively, and are at the same horizontal height. The height difference between the second rotating shaft 10 and the first rotating shaft is the thickness of the first horizontal rod 1; the locking frame 6 includes a horizontally arranged cylinder 601, and a threaded hole 603 is penetrated through the upper side wall of the cylinder 601, and a fixing bolt 602 is installed through the threaded hole 603, and a handle 604 is fixed on the top of the fixing bolt 602 for opening or closing the fixing bolt 602.

[0020] When in use, close the locking pressure plate 802 and adjust the position of the adjusting ruler 5 in the locking frame 6 according to the radius of the circle to be cut. Specifically, unscrew the handle fixed to the first horizontal rod 1, move the adjusting ruler 5 in the cylinder 601, and then screw the fixing bolt 602 into the threaded hole 603 vertically passing through the cylinder 601, so that the top of the fixing bolt 602 is pressed against the ruler surface of the adjusting ruler 5. At this time, the first horizontal rod 1 and the second horizontal rod 2 and the adjusting ruler 5 form a triangle, so that the distance between the cone 7 located at the free ends of the first horizontal rod 1 and the second horizontal rod 2 and the manual cutting gun 9 is stable, and the assembly of the circle cutting device is completed.

[0021] When cutting a circle, open the locking pressure plate 802 on the universal wheel 8, take the cone 7 as a circle, push the device to rotate, and manually cut the circle by rotating the manual cutting gun 9, eliminating the steps of marking before cutting the circle and trimming after cutting the circle. The cut circle has a complete shape and higher precision, which greatly improves work efficiency.

[0022] The scope of protection claimed by the present invention is not limited to the above specific implementation methods. For those skilled in the art, the present invention may have various deformations and changes. Any modification, improvement and equivalent substitution made within the concept and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas cutting circular cutting device, characterized in that: It comprises a first horizontal rod (1) and a second horizontal rod (2) which are rotatably connected, a cone (7) being vertically fixed to the lower surface of the free end of the first horizontal rod (1), a horizontal cutting gun insertion plate (3) being fixedly connected to the free end of the second horizontal rod (2), and a manual cutting gun (9) being vertically mounted on the cutting gun insertion plate (3) through a cutting gun hole; A universal wheel (8) is rotatably mounted at the connection between the first horizontal rod (1) and the second horizontal rod (2); an adjustment ruler (5) is slidably mounted between the first horizontal rod (1) and the second horizontal rod (2) via a locking frame (6); the two locking frames are rotatably mounted above the rod surfaces of the first horizontal rod (1) and the second horizontal rod (2) via a first rotating shaft and a second rotating shaft (10), respectively, and are at the same horizontal height.

2. A gas cutting circle cutting device according to claim 1, characterized in that: The locking frame (6) comprises a horizontally arranged cylinder (601), the upper side wall of the cylinder (601) is penetrated by a threaded hole (603), a fixing bolt (602) is penetrated and installed in the threaded hole (603), and a handle (604) is fixed to the top of the fixing bolt (602).

3. A gas cutting circle cutting device according to claim 2, characterized in that: The height difference between the second rotating shaft (10) and the first rotating shaft is equal to the thickness of the first horizontal rod (1).

4. A gas cutting circle cutting device according to claim 2, characterized in that: The end of the adjusting ruler (5) is locked in a locking frame (6) mounted on the second horizontal rod (2).

5. A gas cutting circle cutting device according to claim 1, characterized in that: The bottom of the universal wheel (8) is in the same horizontal plane as the gun head of the manual cutting gun (9) and the cone tip of the vertical cone (7).

6. A gas cutting circle cutting device according to claim 1, characterized in that: The free end of the second horizontal rod (2) is located above the cutting gun insertion plate (3) and is fixed by two bolts penetrating the second horizontal rod (2) and the cutting gun insertion plate (3).

7. A gas cutting circle cutting device according to claim 1, characterized in that: The first horizontal rod (1) and the second horizontal rod (2) are connected via a horizontal rod rotating shaft (4); a wheel frame (801) is rotatably mounted at the lower portion of the horizontal rod rotating shaft (4); a rotating wheel (803) is mounted in the wheel frame (801) via a wheel axle; and a locking pressure plate (802) for locking the rotating wheel (803) is mounted on the wheel frame (801).