A thermal cutting auxiliary tooling

Abstract

This utility model belongs to the field of metal cutting technology, specifically disclosing a thermal cutting auxiliary tooling, including a centering seat with a magnet embedded at the bottom. A coaxially arranged arm-extending bracket is located above the centering seat, rotatably connected to the centering seat via a rotating assembly. A horizontally arranged elongated hole extending radially is provided in the middle of the arm-extending bracket, through which an extension arm movably passes. At least one welding bracket for positioning and supporting the thermal cutting tool is provided at the end of the extension arm away from the arm-extending bracket. Under the action of the rotating assembly, the extension arm can drive the welding bracket to rotate 360 ​​degrees around the center of the arm-extending bracket. When cutting round steel plates with a thermal cutting tool, it achieves rapid centering and radius finding, provides a support for the cutting tool, realizes standardized cutting, improves cutting quality and precision, eliminates concerns about the cutting torch's trajectory, increases cutting efficiency, significantly reduces labor intensity, and greatly reduces cutting difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of metal cutting technology, and specifically discloses a thermal cutting auxiliary tooling. Background Technology

[0002] In daily inspection and maintenance, round steel plates are often needed for the repair of specific parts. When manually cutting round steel plates, a circle is usually drawn manually on the steel plate to be cut, and then the hot cutting method is used to cut along the circle drawn in advance on the thin plate until a complete round plate is cut out. The round steel plates cut in this way have the following problems: (1) Insufficient precision: Manual drawing and visual control of the cutting trajectory are prone to roundness deviation, and the error is large. The thin round plate cut by hot cutting is not smooth on all sides and has more burrs. In actual use, it still needs to be ground and corrected a second time, but sometimes manual correction is still difficult to guarantee. (2) Low efficiency: The radius cannot be kept constant in real time during the cutting process. Frequent stops are required to correct and adjust the angle and position of the cutting gun. A single cut takes more than 20 minutes. (3) Safety hazards: Operators need to squat for a long time and hold the cutting tool. The labor intensity is high and the work efficiency is low. It is easy to cause misoperation and accidental injury. (4) Over-reliance on operator experience: Plasma cutting guns and oxygen acetylene cutting guns do not have standardized positioning devices. They rely on manual control of the path. The cutting effect depends on the operator's experience. Summary of the Invention

[0003] To address the problems in the background art, this utility model discloses a thermal cutting auxiliary tooling, including a centering seat, an extension arm, and a welding bracket, which can quickly determine the center and find the radius, and provide a support for the cutting tool, thereby achieving standardized cutting and improving cutting quality and efficiency.

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

[0005] A thermal cutting auxiliary fixture includes a centering base with a magnet embedded in its bottom and a coaxially arranged arm holder above the centering base. The arm holder is rotatably connected to the centering base via a rotating assembly. A horizontally arranged elongated hole extending radially is provided in the middle of the arm holder, and an extension arm is movably inserted through the elongated hole. At least one welding bracket for positioning and supporting the thermal cutting tool is provided at the end of the extension arm away from the arm holder. Under the action of the rotating assembly, the extension arm can drive the welding bracket to rotate 360 ​​degrees around the center of the arm holder.

[0006] Furthermore, the thermal cutting auxiliary tooling has an extension arm that can move left and right along the elongated hole.

[0007] Furthermore, the thermal cutting auxiliary tooling also includes an extension arm locking mechanism, which includes a locking screw connected to the arm extension holder by a thread. The locking screw is set perpendicular to the elongated hole, and the end of the locking screw can be screwed in to make tight contact with the extension arm or screwed out to move away from the extension arm.

[0008] Furthermore, the thermal cutting auxiliary tooling has a vertically arranged vertical rod connected to the outside of the welding bracket, and a roller is rotatably connected to the lower end of the vertical rod.

[0009] Furthermore, the thermal cutting auxiliary tooling has a connecting rod between the arm span holder and the centering seat. One end of the connecting rod is rotatably connected to one of the arm span holder and the centering seat through a rotating assembly, and the other end of the connecting rod is detachably connected to the other of the arm span holder and the centering seat.

[0010] Furthermore, in the thermal cutting auxiliary tooling, the magnet is an electromagnet, and the centering base is provided with an external power supply interface for supplying power to the electromagnet and a knob for adjusting the magnitude of the electromagnet's magnetic force.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model relates to an auxiliary tooling for thermal cutting, comprising a centering base with a magnet embedded at its bottom and a coaxially mounted arm support above it. The arm support is rotatably connected to the centering base via a rotating assembly. An extension arm is movably inserted through the middle of the arm support, and at least one welding bracket for positioning and supporting the thermal cutting tool is located at the end of the extension arm furthest from the arm support. Under the action of the rotating assembly, the extension arm can drive the welding bracket to rotate 360 ​​degrees around the center of the arm support. When cutting a round steel plate with the thermal cutting tool, the centering base can be attracted to the steel plate to be cut by the magnetic attraction of the magnet. Then, according to the radius of the round steel plate, the extension arm can be pushed and pulled to move left and right relative to the arm support to adjust the distance between the welding bracket and the center of the round plate, thereby achieving rapid centering and radius finding, providing a support for the cutting tool, realizing standardized cutting, improving cutting quality and precision, eliminating concerns about the travel trajectory of the cutting torch, improving cutting efficiency, significantly reducing labor intensity, and greatly reducing cutting difficulty. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the thermal cutting auxiliary tooling of this utility model;

[0014] In the diagram above: 1-centering seat; 2-connecting rod; 3-arm extension bracket; 4-locking screw; 5-knob; 6-extension arm; 7-second welding bracket; 8-first welding bracket; 9-vertical rod; 10-roller. Detailed Implementation

[0015] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0016] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0018] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0019] Combined with appendix Figure 1This invention provides a detailed description of a thermal cutting auxiliary fixture, comprising a centering base 1 with a magnet embedded in its bottom. An arm-extending bracket 3 is coaxially mounted above the centering base 1 and rotatably connected to the centering base 1 via a rotating assembly. A horizontally extending elongated hole is provided in the center of the arm-extending bracket 3, through which an extension arm 6 is movably inserted. The extension arm 6 has graduated lines for easy and quick reading. At the end of the extension arm 6 furthest from the arm-extending bracket 3, a second welding bracket 7 and a first welding bracket 8 are provided for positioning and supporting thermal cutting tools. The second welding bracket 7 and the first welding bracket 8 can fix different thermal cutting tools, compatible with plasma / oxygen-acetylene cutting guns. Under the action of the rotating component, the extension arm 6 can drive the welding bracket to rotate 360 ​​degrees around the center of the arm extension seat 3. When cutting a round steel plate with a thermal cutting tool, the centering seat 1 can be attracted to the steel plate to be cut by the magnetic attraction of the magnet. Then, according to the radius of the round steel plate, the extension arm 6 is pushed and pulled to move left and right along the long hole to adjust the distance between the welding bracket and the center, so as to quickly determine the center and find the radius, and provide a support for the cutting tool. The extension arm 6 drives the thermal cutting tool to rotate 360 ​​degrees around the center to complete the round plate cutting, realize standardized cutting, improve cutting quality and precision, reduce labor intensity, eliminate the need to worry about the travel trajectory of the cutting torch, improve cutting efficiency, and thus significantly reduce labor intensity and greatly reduce cutting difficulty.

[0020] As an optional design, the thermal cutting auxiliary tooling preferably includes an extension arm locking mechanism. The extension arm locking mechanism includes a locking screw 4 threadedly connected to the arm extension holder 3. The locking screw 4 is set perpendicular to the elongated hole. The end of the locking screw 4 can be screwed in to abut against the extension arm 6 or screwed out to move away from the extension arm 6. During operation, when it is necessary to adjust the extension length of the extension arm 6, the locking screw 4 is first screwed out to move away from the extension arm 6. The extension arm 6 moves left and right along the elongated hole. After adjusting the extension length of the extension arm 6, the locking screw 4 is screwed in to abut against the extension arm 6, so as to quickly fix and clamp the extension arm 6.

[0021] As an optional design, the thermal cutting auxiliary tooling is preferably provided with a vertically arranged vertical rod 9 connected to the outside of the welding bracket. The lower end of the vertical rod 9 is rotatably connected to a roller 10. During cutting, the roller 10 rolls and contacts the steel plate to be cut, reducing the resistance when the extension arm 6 drives the cutting tool to rotate around the center of the arm extension seat 3 through the welding bracket during the cutting process, thereby improving the cutting accuracy and quality.

[0022] As an optional design, the preferred thermal cutting auxiliary tooling includes a connecting rod 2 between the arm-stretcher 3 and the centering seat 1. One end of the connecting rod 2 is rotatably connected to the arm-stretcher 3 via a rotating assembly, and the other end of the connecting rod 2 is detachably connected to the centering seat 1. Alternatively, one end of the connecting rod 2 is rotatably connected to the centering seat 1 via a rotating assembly, and the other end of the connecting rod 2 is detachably connected to the arm-stretcher 3. The rotating assembly is a bearing coaxially arranged with the centering seat 1 and the arm-stretcher 3. In actual operation, depending on the cutting requirements, a fixed-height connecting rod 2 and vertical rod 9 can be selected, or a height-adjustable connecting rod 2 and vertical rod 9 can be selected to meet the needs of different cutting heights.

[0023] As an optional design, the thermal cutting auxiliary tooling is preferred. The magnet is an electromagnet. The centering base 1 is provided with an external power supply interface for supplying power to the electromagnet and a knob 5 for adjusting the magnitude of the electromagnet's magnetic force. By rotating the knob 5, the magnitude of the current passing through the electromagnet coil is adjusted, thereby adjusting the magnitude of the electromagnet's magnetism. The electromagnet's magnetism can be easily activated or deactivated. It should be noted that the method of adjusting the magnitude of the current in the electromagnet coil to adjust the magnitude of the electromagnet's magnetism is existing technology, so its principle and structure will not be described in detail here.

[0024] The working process of this utility model is as follows:

[0025] When cutting a round steel plate using a thermal cutting tool, the centering seat is attracted to the center of the steel plate by the magnetic attraction of a magnet. Then, according to the radius of the round steel plate, the extension arm 6 is pushed and pulled to move left and right along the elongated hole to adjust the distance between the welding bracket and the center. After finding the radius and adjusting the extension length of the extension arm 6, the locking screw 4 is screwed in to lock the extension arm 6. Finally, the thermal cutting tool is fixed to the second welding bracket 7 or the first welding bracket 8. The tool is slowly moved to rotate 360 ​​degrees around the centering seat 1, thus completing the standardized cutting of the round plate. The finished product has high precision and smooth edges, improving cutting quality and efficiency while reducing labor intensity.

[0026] The above description is only an application implementation of this utility model, but the protection scope of this utility model is not limited thereto and cannot be used to limit the scope of rights of this utility model. Any equivalent changes made according to the technical solution of this utility model should be included within the protection scope of this utility model.

Claims

1. A thermal cutting auxiliary fixture, characterized in that: The device includes a centering base with a magnet embedded at its bottom and a coaxially arranged arm holder above it. The arm holder is rotatably connected to the centering base via a rotating assembly. A horizontally arranged elongated hole extending radially is provided in the middle of the arm holder, through which an extension arm is movably inserted. At least one welding bracket for positioning and supporting a thermal cutting tool is provided at the end of the extension arm away from the arm holder. Under the action of the rotating assembly, the extension arm can drive the welding bracket to rotate 360 ​​degrees around the center of the arm holder.

2. The thermal cutting auxiliary tooling according to claim 1, characterized in that: The extendable arm can move left and right along the long slot.

3. The thermal cutting auxiliary tooling according to claim 1 or 2, characterized in that: It also includes an extension arm locking mechanism, which includes a locking screw connected to the extension arm holder by a thread. The locking screw is set perpendicular to the elongated hole, and the end of the locking screw can be screwed in to make tight contact with the extension arm or screwed out to move away from the extension arm.

4. The thermal cutting auxiliary tooling according to claim 3, characterized in that: A vertically installed rod is connected to the outside of the welding bracket, and a roller is rotatably connected to the lower end of the rod.

5. The thermal cutting auxiliary tooling according to claim 3, characterized in that: A connecting rod is provided between the arm span holder and the centering seat. One end of the connecting rod is rotatably connected to one of the arm span holder and the centering seat through a rotating component, and the other end of the connecting rod is detachably connected to the other of the arm span holder and the centering seat.

6. The thermal cutting auxiliary tooling according to claim 3, characterized in that: The magnet is an electromagnet, and the centering base is equipped with an external power supply interface for supplying power to the electromagnet and a knob for adjusting the magnitude of the electromagnet's magnetic force.

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