Auxiliary device for cutting circle by cutting knife

Abstract

The utility model discloses an auxiliary device for a cutting knife to cut a circle, which comprises a round rod, a sleeve for a cutting torch to insert is welded and fixed at one end of the round rod, the axial direction of the sleeve is perpendicular to the axial direction of the round rod, an adjusting sleeve is arranged on the round rod in a sliding mode, and the adjusting sleeve is provided with a locking screw hole. A locking screw is installed in the locking screw hole and used for fixing the adjusting sleeve to the round rod, and a circle center cone is further fixedly installed on the adjusting sleeve. When in use, a worker can directly place a cutting nozzle of a cutting knife into the sleeve, and then directly draw a circle for cutting after the sleeve is moved and adjusted to a required size, so that convenience and rapidness are realized.

Description

Technical Field

[0001] This utility model relates to an auxiliary tool for cutting circles with a cutter, specifically to an auxiliary device for cutting circles with a cutter. Background Technology

[0002] During the repair process, circular metal sheets need to be cut to manufacture various parts. Without specialized auxiliary equipment, relying solely on manual cutting tools often results in insufficient precision. The cut circles may be irregular, with inconsistent radii, affecting the quality and usability of the final product. Manual circular cutting requires highly skilled and experienced operators to ensure the cutting tool follows the predetermined circular trajectory. This poses a significant challenge for ordinary operators, requiring considerable practice time and being prone to errors in practice. Manual circular cutting is typically time-consuming, especially for larger circles, necessitating repeated adjustments to the cutting tool's position and angle, greatly reducing work efficiency.

[0003] To facilitate the use of cutting tools for circular shapes by maintenance personnel, our company has manufactured compasses as a dedicated tool for drawing circles. However, after recent use, we have found that drawing a circle using a compass is still necessary before cutting the circle, resulting in low work efficiency. Summary of the Invention

[0004] This utility model addresses the problems existing in the prior art by proposing an auxiliary device for cutting circles with a cutter. When in use, the operator can directly insert the cutting nozzle of the cutter into the sleeve, then move and adjust the sleeve to the required size before directly drawing a circle for cutting, which is both convenient and quick.

[0005] The technical solution adopted by this utility model is: an auxiliary device for cutting circles with a cutter, including a round rod, one end of which is welded and fixed with a sleeve for inserting a cutting nozzle, the axis of the sleeve being perpendicular to the axis of the round rod, an adjusting sleeve being slidably installed on the round rod, the adjusting sleeve having a locking screw hole, a locking screw being installed in the locking screw hole for fixing the adjusting sleeve to the round rod, and a central cone being fixedly installed on the adjusting sleeve.

[0006] Based on the above scheme, as a preferred option, the axis of the central cone coincides with the axis of the locking screw hole.

[0007] Based on the above scheme, as a preferred option, the inner wall of the adjusting sleeve has a groove, and the round rod has a ridge arranged along its length, with the ridge engaging with the groove.

[0008] Based on the above scheme, as a preferred option, the inner wall of the adjusting sleeve has a ridge, and the round rod has a groove arranged along its length, with the ridge and the groove fitting together.

[0009] Based on the above scheme, as a preferred option, the axis of the central cone is at a 90-degree angle to the axis of the locking screw hole, and two support frames for the cutter body are set on the round rod, with an adjusting sleeve between two adjacent support frames.

[0010] Based on the above scheme, as a preferred option, the sleeve, adjusting sleeve, and round rod are all made of steel.

[0011] Based on the above scheme, as a preferred option, the round rod has several scale marks of equal length.

[0012] Based on the above scheme, as a preferred option, the round rod is a hollow round tube.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] When using it, the operator can directly put the cutting nozzle of the cutter into the sleeve, then move and adjust the sleeve to the required size, and then directly make a circular cut, which is both convenient and quick.

[0015] The sleeve remains stationary on the round rod by the fit between the ridge and the groove, and the axis of the central cone is always parallel to the axis of the sleeve.

[0016] The design of the support frame reduces the difficulty of operation. Attached Figure Description

[0017] Figure 1 These are schematic diagrams of the structures in Examples 1 and 2;

[0018] Figure 2 This is a schematic diagram of the structure of Example 3. Detailed Implementation

[0019] The present invention will be further described below through embodiments, but the scope of the present invention is not limited thereto.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] like Figure 1-2 As shown,

[0022] Example 1: An auxiliary device for cutting circles with a cutter includes a round rod 1. One end of the round rod is welded and fixed with a sleeve 2 for inserting a cutting nozzle. The axis of the sleeve is perpendicular to the axis of the round rod. An adjusting sleeve 3 is slidably installed on the round rod. The adjusting sleeve has a locking screw hole. A locking screw 4 is installed in the locking screw hole to fix the adjusting sleeve on the round rod. A central cone 5 is also fixedly installed on the adjusting sleeve.

[0023] When using it, the operator can directly put the cutting nozzle of the cutter into the sleeve, then move and adjust the sleeve to the required size, and then directly make a circular cut, which is both convenient and quick.

[0024] The axis of the central cone coincides with the axis of the locking screw hole, with the central cone located at the bottom. The axis of the central cone is parallel to the axis of the sleeve by observing whether the locking screw and the sleeve are perpendicular. If they are not parallel, cutting is not allowed.

[0025] Example 2: The operation process of Example 1 requires the experience and judgment of employees, which places high demands on their individual abilities and is prone to errors. To overcome this problem, the following design is adopted:

[0026] The inner wall of the adjusting sleeve has ridges, and the round rod has a groove 6 arranged along its length, with the ridges and grooves engaging. Alternatively, the inner wall of the adjusting sleeve has grooves, and the round rod has ridges arranged along its length, with the ridges and grooves engaging.

[0027] The sleeve remains stationary on the round rod by the fit between the ridge and the groove, and the axis of the central cone is always parallel to the axis of the sleeve.

[0028] Example 3: Regarding the solution in Example 1, the operator needs to hold the blade or the blade with a handle, which is physically demanding. Therefore, the following design is proposed:

[0029] The axis of the central cone forms a 90-degree angle with the axis of the locking screw hole. Two support frames 7 for the cutting blades are installed on the round rod, and an adjusting sleeve is installed between two adjacent support frames. In use, the blade can be placed on the support frame, and the stability of the round rod and the blade can be ensured by simply holding and rotating it.

[0030] In addition, the sleeve, adjusting sleeve, and round rod are all made of steel. The round rod has several equally long scale marks and is a hollow round tube.

[0031] It should be noted that the embodiments described above are only for explaining the present invention and do not constitute any limitation on the present invention. The present invention has been described with reference to typical embodiments, but it should be understood that the words used therein are descriptive and explanatory terms, not limiting terms. Modifications can be made to the present invention within the scope of the claims, and revisions can be made to the present invention without departing from the scope and spirit of the present invention. Although the present invention described herein relates to specific methods, materials, and embodiments, it does not mean that the present invention is limited to the specific examples disclosed herein; on the contrary, the present invention can be extended to all other methods and applications with the same function.

Claims

1. An auxiliary device for cutting circles with a cutter, characterized in that, The device includes a round rod, one end of which is welded and fixed with a sleeve for inserting a cutting nozzle. The axis of the sleeve is perpendicular to the axis of the round rod. An adjusting sleeve is slidably mounted on the round rod. The adjusting sleeve has a locking screw hole, in which a locking screw is installed to fix the adjusting sleeve to the round rod. A central cone is also fixedly mounted on the adjusting sleeve. The inner wall of the adjusting sleeve has ridges, and the round rod has grooves along its length; the ridges and grooves mate. The axis of the central cone is at a 90-degree angle to the axis of the locking screw hole. Two support frames for the cutter body are set on the round rod, and an adjusting sleeve is set between two adjacent support frames.

2. The auxiliary device for cutting circles with a cutter as described in claim 1, characterized in that, The axis of the central cone coincides with the axis of the locking screw hole.

3. The auxiliary device for cutting circles with a cutter as described in claim 1, characterized in that, The inner wall of the adjusting sleeve has a groove, and the round rod has ridges arranged along its length, which fit into the groove.

4. The auxiliary device for cutting circles with a cutter as described in claim 1, characterized in that, The sleeve, adjusting sleeve, and round rod are all made of steel.

5. The auxiliary device for cutting circles with a cutter as described in claim 1, characterized in that, The round rod has several equally long scale markings.

6. The auxiliary device for cutting circles with a cutter as described in claim 1, characterized in that, The round rod is a hollow round tube.

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