A laser cutting method with adaptive intersection avoidance

Abstract

This invention discloses an adaptive intersection point avoidance laser cutting method. Based on the processing drawing, the intersection points of all lines are calculated. Using these calculated intersection points as a reference, the coordinates of the 4N adjacent points (N is an integer and N≥1) before, after, and to the left and right of each intersection point are calculated. All lines except the intersection points and the calculated adjacent points are broken down into points according to the PSO spacing parameters, and their coordinates are calculated and recorded. Based on the calculated position data, a laser beam is used for cutting, achieving adaptive and precise intersection point avoidance processing. This method achieves precise avoidance, preventing repeated laser cutting of intersection points and avoiding inconsistent cutting depths in the processed products. Cutting parameters are automatically calculated based on the drawing, reducing processing time and increasing output and efficiency. The cut edges of the finished product have a good finish, avoiding defects such as "eagle beak" patterns, thus improving yield. Furthermore, it can adaptively calculate dynamic point spacing to achieve two-dimensional intersection point avoidance.

Description

Technical Field

[0001] This invention relates to a laser cutting method for adaptive intersection avoidance. Background Technology

[0002] In recent years, with the development of materials technology, ceramic materials have been widely used in both industrial and scientific research fields due to their superior physical and chemical properties. Because ceramics possess properties such as hardness, wear resistance, electrical insulation, resistance to acid and alkali corrosion, refractoriness, impermeability to liquids and gases, and good chemical stability, they are widely used in the construction industry for floor tiles, wall tiles, drainage pipes, and sanitary ware. In the chemical industry, ceramics are used to manufacture various containers, pipes, valves, liquid pumps, crucibles, evaporating dishes, combustion boats, mortars, reaction vessels, and refractory materials for various high-temperature industrial kilns. In the power industry, they are used to manufacture insulators for high and low voltage transmission lines, bushings for motors, insulating supports, low-voltage electrical appliances, and lighting fixtures. The application scope of ceramics has further expanded to cutting-edge technology fields such as optics, electronic computers, communications, aerospace, nuclear energy, machinery, new energy, lasers, and biomedicine, resulting in many new ceramic manufacturing processes and varieties, forming a huge high-tech industry. However, ceramics have a dense structure and a certain degree of brittleness; ordinary machining methods can easily cause ceramic pieces to shatter during processing.

[0003] Laser processing, as a flexible processing method, is disclosed in Chinese Patent Publication No. CN106425087 A, which describes a laser processing device and method for aluminum nitride ceramics. Through optical integration, employing optimized laser optical paths and modules, and combining the advantages of fiber lasers in scribing and drilling alumina ceramics, it achieves scribing, cutting, and micro-hole processing. Applied to the ceramic processing field, the laser beam performs cutting operations according to the drawn cutting trajectory. The laser uses a fixed spacing (PSO) processing method, requiring processing only once at intersections while also ensuring precise avoidance, which is a challenge in the industry. Firstly, intersections cannot be repeatedly processed, as this leads to inconsistent cutting depths. Secondly, even if processing is only done once at intersections, the intersection lines are not precisely aligned; even if they are aligned, the spacing at the intersections varies significantly, all of which result in a high defect rate.

[0004] Existing technology only avoids horizontal and vertical lines in drawings, and even then, it only achieves precise avoidance through manual calculation for drawings with equally spaced vertical lines. It cannot avoid lines at intersections in two-dimensional graphics. The precise avoidance methods for equally spaced vertical lines generally fall into two categories: The first involves processing horizontal lines normally, while vertical lines are segmented into smaller segments based on their intersections. At these intersections, avoidance is achieved according to a set avoidance distance. This method ensures that intersections are processed only once, but the spacing at intersections will be inconsistent. The second method involves processing horizontal lines normally, while vertical lines, during processing, determine whether to remove or not process intersections based on the set avoidance distance. This method also ensures that intersections are processed only once, but the vertical lines are not precisely processed onto the straight line where horizontal lines intersect. To ensure that the vertical lines are exactly on the straight line where horizontal lines intersect, the cutting parameters must first be manually calculated based on the drawing. Furthermore, this method is only effective for drawings with equally spaced vertical lines; for drawings with unequally spaced vertical lines, manual calculation cannot achieve precise avoidance. All of the above methods will result in a high defect rate of the processed products, and the operation methods and process parameters are difficult and time-consuming to adjust during the production process.

[0005] Current technical solutions all involve performing one-dimensional processing on horizontal and vertical lines separately during manufacturing. Horizontal lines are processed normally, while vertical lines are divided or have their common points removed based on their points of intersection. Furthermore, vertical line avoidance distance parameters need to be provided. For drawings with equal spacing between vertical lines, the cutting PSO spacing parameters need to be calculated manually to achieve accurate avoidance. For drawings with unequal spacing, accurate avoidance cannot be achieved. Moreover, it cannot handle situations where two-dimensional diagonal lines intersect or irregularly shaped lines intersect at common points.

[0006] Therefore, a laser cutting method is needed to achieve precise avoidance cutting of intersecting points. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an adaptive laser cutting method for avoiding intersections.

[0008] The objective of this invention is achieved through the following technical solution: An adaptive intersection avoidance laser cutting method is characterized by: calculating the intersection points of all lines according to the processing drawing; using the calculated intersection points as a reference, calculating the coordinates of 4N adjacent points in all directions before, after, and to the left and right of each intersection point, where N is an integer and N≥1; breaking all lines except the intersection points and the calculated adjacent points into points according to the PSO spacing parameter, calculating their coordinates, and recording the positions of all points; and using a laser beam to cut according to the calculated position data, thereby achieving adaptive and precise intersection avoidance processing.

[0009] Furthermore, the aforementioned adaptive intersection avoidance laser cutting method includes the following steps: S1) Draw the cutting drawing to be processed using AutoCAD, calculate the coordinates of all intersection points of the lines on the drawing, and record the coordinates of the first intersection point as ( , The coordinates of the second intersection point are recorded as ( , The coordinates of the third intersection point are recorded as ( , ), until the coordinates of the Nth intersection point are recorded as ( , ); S2) Using any intersection point as the reference point, set the coordinates of this reference point as ( , According to the pre-set PSO spacing parameters Calculate the coordinates of the four adjacent points (left, right, top, and bottom) at the intersection point; S3) Based on the calculation results of step S2), break all line segments except for the intersection point and its four surrounding points into points, and record the coordinates of all points; S4) Based on the calculated actual coordinate data of the points, use a laser beam for cutting; dynamically avoid the intersection of the cutting points on the processing drawing, so that the intersection is cut once with a laser.

[0010] Furthermore, in the aforementioned adaptive intersection avoidance laser cutting method, step S2) includes the following steps: a. Calculate the length of the line segment at adjacent intersection points. as follows: in, and This represents the x and y coordinates of the (M-1)th intersection point. and Represent the x and y coordinates of the Mth intersection point; b. Calculate the dynamic PSO spacing of the small line segments. So that the adjusted It is an integer multiple of the small line segment: in, This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. This indicates the preset dot spacing. This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. Divide by the dot spacing The remaining shortcomings Length; in, This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. This indicates the preset dot spacing. This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. Divide by the dot spacing The number of integers obtained The number of; in, This indicates the preset dot spacing. and The result is obtained from the above formula. The table shows the final calculated dynamic point spacing; c. Let the angle of inclination of line a, the intersecting line segment, be... The angle of inclination of line b is The actual coordinates of the adjacent points around the intersection are as follows: Coordinates of the point to the left of line intersection a: , ; in, and This represents the x and y coordinates of the point to the left. The angle of inclination of line a; Coordinates of the point to the right of line intersection a: ; in, and This represents the x and y coordinates of the point to the right. The angle of inclination of line a; Coordinates of the edge point on line b at intersection: , ; in, and Indicates the x and y coordinates of the point above. The angle of inclination of line b; Coordinates of the lower edge point of intersection point b: , , in, and Indicate the x and y coordinates of the point below. Let be the angle of inclination of line b.

[0011] Furthermore, in the aforementioned adaptive intersection avoidance laser cutting method, in step S4), the industrial control computer sends the actual coordinate data of all points calculated by the adaptive algorithm and the preset laser control parameters to the laser control card of the laser cutting equipment. The laser control card converts the digital signal into an analog signal and sends it to the laser system. After receiving the signal, the laser system performs laser cutting according to the received frequency and pulse width. Laser cutting is performed by combining the industrial control computer, the laser system, and the laser control system.

[0012] Furthermore, in the aforementioned adaptive intersection avoidance laser cutting method, a new point spacing is dynamically calculated for processing drawings with equal spacing between vertical lines and unequal spacing between vertical lines.

[0013] Compared with the prior art, the present invention has significant advantages and beneficial effects, specifically reflected in the following aspects: ① This invention achieves precise avoidance, preventing the problem of inconsistent cutting depth of processed products caused by repeated laser cutting at intersection points; it eliminates the need for manual calculation, automatically calculating cutting parameters based on drawings, reducing operation time, increasing output, and improving efficiency; the edge cutting effect of the cut product is good, avoiding defective products such as "eagle beak" patterns, thus improving yield; ② It can not only accurately avoid one-dimensional intersections of horizontal and vertical lines, but also adaptively calculate dynamic point spacing to achieve two-dimensional intersection avoidance; ③ It has the advantages of simple, convenient and time-saving process parameter adjustment during production, and the yield rate of the produced products is relatively high.

[0014] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing specific embodiments of the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 : A schematic diagram of the process of this invention; Figure 2 : Schematic diagram of horizontal and vertical lines; Figure 3 : Diagram of intersection avoidance; Figure 4: Schematic diagram of the diagonal line drawing; Figure 5 Comparison photos of the processing effects of existing technology and the present invention when the vertical lines on the drawing are evenly spaced; Figure 6 Comparison photos of the processing effects of existing technology and the present invention when the vertical lines on the drawing are not equidistant; Figure 7 Photographs showing the processing effect of avoiding the intersection of diagonal lines in this invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this invention, directional and ordinal terms are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0019] like Figure 1 As shown, an adaptive intersection avoidance laser cutting method calculates the intersection points of all lines according to the processing drawing of the line to be processed. Using the calculated intersection points as a reference, the coordinates of 4N adjacent points in front, behind, left, and right of each intersection point are calculated, where N is an integer and N≥1. Two points are calculated in front, behind, left, and right of each intersection point to compensate for the error in encoder feedback when the control card controls the axis movement. All lines except the intersection points and the calculated adjacent points are broken into points according to the PSO spacing parameters, and their coordinates are calculated and the positions of all points are recorded. Based on the calculated position data, a laser beam is used for cutting to achieve adaptive and precise intersection avoidance processing.

[0020] The specific steps are as follows: S1) Draw the cutting drawing to be processed using AutoCAD, calculate the coordinates of all intersection points of the lines on the drawing, and record the coordinates of the first intersection point as ( , The coordinates of the second intersection point are recorded as ( , The coordinates of the third intersection point are recorded as ( , ), until the coordinates of the Nth intersection point are recorded as ( , ); S2) Using any intersection point as the reference point, set the coordinates of this reference point as ( , According to the pre-set PSO spacing parameters Calculate the coordinates of the four adjacent points (left, right, top, and bottom) at the intersection point; this includes the following steps: a. Calculate the length of the line segment at adjacent intersection points. as follows: in, and This represents the x and y coordinates of the (M-1)th intersection point. and Represent the x and y coordinates of the Mth intersection point; b. Calculate the dynamic PSO spacing of the small line segments. So that the adjusted It is an integer multiple of the small line segment: in, This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. This indicates the preset dot spacing. This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. Divide by the dot spacing The remaining shortcomings Length; in, This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. This indicates the preset dot spacing. This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. Divide by the dot spacing The number of integers obtained The number of; in, This indicates the preset dot spacing. and The result is obtained from the above formula. The table shows the final calculated dynamic point spacing; c. Let the angle of inclination of line a, the intersecting line segment, be... The angle of inclination of line b is The actual coordinates of the adjacent points around the intersection are as follows: Coordinates of the point to the left of line intersection a: , ; in, and This represents the x and y coordinates of the point to the left. The angle of inclination of line a; Coordinates of the point to the right of line intersection a: ; in, and This represents the x and y coordinates of the point to the right. The angle of inclination of line a; Coordinates of the edge point on line b at intersection: , ; in, and Indicates the x and y coordinates of the point above. The angle of inclination of line b; Coordinates of the lower edge point of intersection point b: , , in, and Indicate the x and y coordinates of the point below. Let be the angle of inclination of line b.

[0021] S3) Based on the calculation results of step S2), break all line segments except for the intersection point and its four surrounding points into points, and record the coordinates of all points; S4) Based on the calculated actual coordinate data of the points, use a laser beam for cutting; dynamically avoid the intersection of the cutting points on the processing drawing, so that the intersection is cut once with a laser.

[0022] The industrial control computer sends the actual coordinate data of all points calculated by the adaptive algorithm, along with the preset laser control parameters, to the laser control card of the laser cutting equipment. The laser control card converts the digital signals into analog signals and sends them to the laser system. After receiving the signals, the laser system performs laser cutting according to the received frequency and pulse width. The industrial control computer, laser system, and laser control system work together to perform laser cutting and dynamically avoid the intersection of the cuts.

[0023] For machining drawings with equal and unequal spacing between vertical lines, a new point spacing is dynamically calculated.

[0024] It can not only achieve one-dimensional intersection avoidance, but also adaptively calculate dynamic point spacing to achieve two-dimensional intersection avoidance.

[0025] To more clearly describe an adaptive intersection avoidance laser cutting method, the technical details are explained using the simplest horizontal and vertical line machining drawings. The machining drawings are as follows: Figure 2 The diagram shows horizontal and vertical lines. First, calculate the intersection points of all lines. Then, using these intersection points as a reference, calculate the coordinates of 4N points in the left, right, and front of each intersection point. Figure 3 The diagram illustrates the avoidance of intersections. Two points are calculated for each intersection, one before, one after, and one to the left and right, to compensate for errors in encoder feedback when the control card moves the axis. All lines except the intersections and the calculated adjacent points are broken down into points, and their coordinates are calculated.

[0026] Laser cutting equipment for precise avoidance at intersections includes an industrial control computer, a motion control system, a laser system, and a laser control system. The industrial control computer, motion control system, laser system, and laser control system are all connected and communicate via electrical signals. The industrial control computer sends the calculated data and preset laser control parameters to the laser control card. The laser control card converts the digital signals into analog signals and sends them to the laser system. After receiving the signals, the laser system performs laser cutting according to the received frequency and pulse width.

[0027] The industrial control computer first presets the cutting speed, laser frequency, duty cycle, etc., imports the drawing, and uses an adaptive intersection avoidance algorithm to calculate the intersection points and surrounding adjacent points of the imported drawing and break all lines into points. Then, these parameter data are sent to the laser control system and motion control system.

[0028] The laser control system includes a laser control card, which receives control information, including the laser frequency and pulse energy, from the industrial control computer and sends control commands to the laser system. The motion control system includes a motion control card, which monitors the cutting speed of the laser system and feeds back the cutting speed information to the industrial control computer in real time. The motion control system also includes a multi-axis guide rail and the motion control card, which monitors and controls the cutting speed and position of the laser system. The laser control system includes a laser control card, which issues corresponding control commands based on the laser frequency data received from the industrial control computer. These control commands include the laser frequency and pulse energy. The laser system uses a fiber laser. When performing laser cutting, the basic frequency, cutting speed, and laser pulse energy are set, and then the laser beam is controlled to cut according to the received control commands.

[0029] Example 1 (Scenario 1): The machining drawing is exactly in the form of horizontal and vertical lines, such as Figure 3The diagram illustrates the intersection point avoidance. Assuming the coordinates of the intersection of the first horizontal and first vertical lines are (x, y), and the PSO parameter during laser cutting is 0.1mm, and 8 adjacent points are considered, then the coordinates of the two adjacent points to the left of the intersection are (x-0.1, y) and (x-0.2, y); the coordinates of the two adjacent points to the right of the intersection are (x+0.1, y) and (x+0.2, y); the coordinates of the two adjacent points above the intersection are (x, y+0.1) and (x, y+0.2); and the coordinates of the two adjacent points below the intersection are (x, y-0.1) and (x, y-0.2). All lines other than those calculated above are also broken down into points according to the PSO spacing and recorded. Using an industrial control computer combined with the laser control system, motion control system, and laser system, the laser beam is ensured to emit light only once at the calculated coordinate positions.

[0030] Example 2 (Scenario 2): The machining drawings do not use horizontal and vertical lines, such as Figure 4 The diagram shows a slanted line. Assume the coordinates of the intersection point of line a in the diagram are (x, y), and the PSO parameter during laser cutting is 0.1 mm. The inclination angle of line a passing through the intersection point is α. Taking 8 adjacent points to the intersection point, the coordinates of the two points adjacent to the left of the intersection point are (x-0.1). cosα, y-0.1 sinα), (x-0.2 cosα, y-0.2 sinα), the coordinates of the two points adjacent to the right of the intersection point are (x+0.1) cosα, y+0.1 sinα), (x+0.2 cosα, y+0.2 sinα); the angle of inclination of line b passing through the intersection point is β, then the coordinates of the two adjacent points on the upper side of the intersection point are (x-0.1). cos(180-β), y+0.1 sin(180-β) (x-0.2) cos(180-β), y+0.2 sin(180-β)), the coordinates of the two adjacent points below the intersection point (x+0.1) cos(180-β), y-0.1 sin(180-β) (x+0.2) cos(180-β), y-0.2 sin(180-β)), similarly, all lines other than the coordinates calculated above are also broken into points according to the PSO spacing and saved and recorded; using an industrial control computer combined with a laser control system, motion control system and laser system, the laser beam is made to emit light only once at the coordinate positions calculated above; in this way, the goal of processing the intersection point only once can be achieved, while also taking into account precise avoidance.

[0031] Comparison photos of the processing effects of existing technology and the present invention when the vertical lines of the drawing are evenly spaced, such as... Figure 5 ; Comparison photos of the processing effects of existing technology and the present invention when the vertical lines on the drawing are not equidistant, such as... Figure 6 Existing technologies cannot achieve precise obstacle avoidance, but this invention achieves precise obstacle avoidance. Existing technologies have not yet been able to achieve the avoidance of two-dimensional graphics such as the intersection of diagonal lines. The present invention provides a photograph of the processing effect of avoiding the intersection of diagonal lines, as shown in the image. Figure 7 ; The invention compares the actual processing effects of vertical lines with equal and unequal spacing, as well as the actual processing avoidance effect of diagonal lines. By automatically calculating the coordinates of intersection points and adjacent points and breaking all line segments into points, the invention eliminates the need for manual calculation, making the operation simpler and saving time and effort.

[0032] In summary, this invention achieves precise avoidance, preventing inconsistent cutting depths in processed products caused by repeated laser cutting at intersections; it eliminates the need for manual calculations, automatically calculating cutting parameters based on drawings, reducing processing time, increasing output, and improving efficiency; the resulting product has a good edge cutting effect, avoiding defects such as "eagle beak" patterns, thus improving yield; it not only achieves precise avoidance of one-dimensional horizontal and vertical line intersections but also adaptively calculates dynamic point spacing to achieve two-dimensional intersection avoidance; the method of this invention has advantages such as simple, convenient, and time-saving adjustment of process parameters during production, resulting in a high product yield.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A laser cutting method with adaptive intersection avoidance, characterized in that: Calculate the intersection points of all lines according to the processing drawing. Using the calculated intersection points as a reference, calculate the coordinates of the 4N adjacent points in front, behind, left, and right of each intersection point, where N is an integer and N≥1. Break all lines except the intersection points and the calculated adjacent points into points according to the PSO spacing parameters, calculate their coordinates, and record the positions of all points. Based on the calculated position data, use a laser beam to cut, achieving adaptive and precise avoidance processing of the intersection points. Includes the following steps: S1) Draw the cutting drawing to be processed using AutoCAD, calculate the coordinates of all intersection points of the lines on the drawing, and record the coordinates of the first intersection point as ( , The coordinates of the second intersection point are recorded as ( , The coordinates of the third intersection point are recorded as ( , ), until the coordinates of the Nth intersection point are recorded as ( , ); S2) Using any intersection point as the reference point, set the coordinates of this reference point as ( , According to the pre-set PSO spacing parameters Calculate the coordinates of the four adjacent points (left, right, top, and bottom) at the intersection point; this includes the following steps: a. Calculate the length of the line segment at adjacent intersection points. as follows: in, and This represents the x and y coordinates of the (M-1)th intersection point. and Represent the x and y coordinates of the Mth intersection point; b. Calculate the dynamic PSO spacing of the small line segments. So that the adjusted It is an integer multiple of the small line segment: in, This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. This indicates the preset dot spacing. This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. Divide by the dot spacing The remaining shortcomings Length; in, This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. This indicates the preset dot spacing. This represents the length of the line connecting the (M-1)th intersection point and the Mth intersection point. Divide by the dot spacing The number of integers obtained The number of; in, This indicates the preset dot spacing. and The result is obtained from the above formula. The table shows the final calculated dynamic point spacing; c. Let the angle of inclination of line a, the intersecting line segment, be... The angle of inclination of line b is The actual coordinates of the adjacent points around the intersection are as follows: Coordinates of the point to the left of line intersection a: , ; in, and This represents the x and y coordinates of the point to the left. The angle of inclination of line a; Coordinates of the point to the right of line intersection a: ; in, and This represents the x and y coordinates of the point to the right. The angle of inclination of line a; Coordinates of the edge point on line b at intersection: , , in, and Indicates the x and y coordinates of the point above. The angle of inclination of line b; Coordinates of the lower edge point of intersection point b: , , in, and Indicate the x and y coordinates of the point below. The angle of inclination of line b; S3) Based on the calculation results of step S2), break all line segments except for the intersection point and its four surrounding points into points, and record the coordinates of all points; S4) Based on the calculated actual coordinate data of the points, use a laser beam for cutting; dynamically avoid the intersection of the cutting points on the processing drawing, so that the intersection is cut once with a laser.

2. The adaptive intersection avoidance laser cutting method according to claim 1, characterized in that: Step S4): The industrial control computer sends the actual coordinate data of all points calculated by the adaptive algorithm and the preset laser control parameters to the laser control card of the laser cutting equipment. The laser control card converts the digital signal into an analog signal and sends it to the laser system. After receiving the signal, the laser system performs laser cutting according to the received frequency and pulse width. Laser cutting is performed by combining the industrial control computer, the laser system and the laser control system.

3. The laser cutting method for adaptive intersection avoidance according to claim 1, characterized in that: For machining drawings with equal and unequal spacing between vertical lines, a new point spacing is dynamically calculated.

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