Saddle opening lineation solution

Abstract

The invention discloses a saddle opening lineation solution, a tool is manufactured according to the combination of the principle that an approximation method approaches to a circle and the principle of a projection method, the tool comprises a positioning groove and a probe, a shape can be accurately drawn on a nonlinear plane, and the innovation is that the concept that the approximation method approaches to the circle is adopted, a line segment is used for replacing the drawing of the circle, and the drawing accuracy is high. The approximation method combines an approximation circle and a projection method, the approximation method makes up the limitation that the projection method can only draw a line on a preceding plane, and a standard shape contour can be drawn on a non-linear plane. The multipurpose saddle opening marking tool is characterized in that a tool is manufactured according to the combination of the principle that an approximation method approaches a circle and the principle of a projection method, the tool comprises a positioning groove and a probe, and a shape is accurately marked on a nonlinear plane.

Description

Technical Field

[0001] This invention relates to a tool for processing metal pipes, particularly for the application of marking saddle-shaped grooves on pipes. Background Technology

[0002] The purpose of this patent is to provide a solution to the problem of saddle-mouth marking. Currently, no such product is available on the market. Most common marking methods rely on experience to roughly mark the pipes, resulting in large errors, or involve complex calculations and the use of paper to assist in marking, which is cumbersome, inconvenient, and inefficient. With the development of industrialization, the use of pipes is increasing, and the demand for marking saddle-mouth pipes is also growing. However, existing methods cannot meet the increasing demand. There is an urgent need for a new marking method, a simple, effective, and easy-to-operate method that can solve the difficulty of saddle-mouth marking. This patent, as a saddle-mouth marking solution, can effectively solve the problem of saddle-mouth marking, not only reducing the difficulty of operation but also increasing the marking accuracy, which can greatly improve production efficiency. Summary of the Invention

[0003] This patent discloses a solution for saddle-edge marking. The solution is characterized by a tool combining the principles of approximation and projection methods. This tool includes a positioning groove and a probe, enabling accurate drawing of a shape on a non-linear plane. Its innovation lies in using line segments to represent the circle, based on the approximation principle. The combination of approximation and projection methods overcomes the latter's limitation of only being able to draw lines on a pre-existing plane, allowing for the drawing of standard shape contours on a non-linear plane. The fixing device needs a certain degree of flexibility, and the probe should provide resistance during movement to stop at a certain position. Simultaneously, it can also draw regular contours on various non-planes. The purpose of this patent is to provide a solution for saddle-edge marking to address the problems existing in the aforementioned background technology. Attached Figure Description

[0004] Figure 1 is a simplified schematic diagram of the fixing device, and Figure 2 is a simplified schematic diagram of the probe. Figure 3 This is a schematic diagram illustrating the principles of the approximation method for approaching a circle and the projection method.

Claims

1. A tool, characterized in that, Combining the principles of approximation to a circle and projection, this method is used for marking lines on saddle-shaped pipe joints. in,: The more sides of a regular polygon are involved in the approximation method, the closer the polygon is to a circle. The circle can be drawn by using line segments to represent the polygon. Projection methods involve projecting an object onto a plane from one direction to obtain the object's shape and size; The combination of approximation and projection methods enables the accurate drawing of a shape on a nonlinear plane.

2. The tool according to claim 1, characterized in that, It includes a probe used to approximate a circle, with a row of small probes arranged around a circle to obtain the contour shape.

3. The tool according to claim 1, characterized in that, It includes a positioning device and a probe for implementing the projection method. The positioning device is a row of slots in fixed positions, which restricts the probe to move only in one direction.

4. The tool according to claim 1, characterized in that, include: The probes used to achieve the approximation method to approximate a circle consist of a row of small probes arranged around a circle, which is equivalent to a circle, to obtain the contour shape; The positioning device and probe used to achieve projection have a row of slots in fixed positions, which restricts the probe to move in only one direction. This system is designed to combine approximation and projection methods to create a nonlinear planar line drawing structure control system. The probes are arranged in a circle, which is equivalent to the sides of a polygon approximating a circle, thus obtaining the object's outline shape. Since the approximation method is used to approximate a circle, the outline is the sides of a polygon, which are then the probes on the circle. The probes are discontinuous sides, and the positioning device restricts the projection to discontinuous line segments. Each line segment is drawn independently, thus realizing line drawing on a nonlinear plane.

5. The tool according to claim 1, characterized in that, It has one of the following variations: Variant 1 is characterized in that the probe structure can be a cylindrical top with a chamfer, and the cylindrical probe has the characteristic of being rotatable, and can be used in conjunction with different positioning device variants; Variant 2 is characterized in that the positioning device is a hinge structure with a positioning groove or a shaft hole in the middle; Variant 3 is characterized in that the positioning device is a knotted rope structure; Variant 4 is characterized by the addition of a self-locking structure to the positioning device to reduce operational errors during projection; Among them, variants 1 to 3 are all based on the same principle and similar structural features as described in claim 1.

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