Control method and system for plate pattern cutting path

Abstract

The present invention relates to the technical field of plate pattern cutting, and discloses a control method and system for plate pattern cutting path. The control method for plate pattern cutting path is applied to plate cutting equipment, and specifically includes the following steps: S101: obtaining the plate pattern to be cut on the cutting path template, and pre-generating the plate pattern by copying it on the cutting path template according to the identification lines; S102: obtaining the curve contour in the pre-generated plate pattern, grabbing the curve regression point in the curve contour, obtaining the edge banding frame in the pre-generated plate pattern image according to the curve regression point, filling the obtained edge banding frame, and obtaining the second plate pattern plane image. The present invention utilizes the one-by-one cutting of two-dimensional cross sections to make the cutting more accurate, and by performing contour fitting and smoothing processing on the bottom contour of the third plate pattern three-dimensional image, the cut pattern surface is more rounded, effectively avoiding the deviation of the cutting path, and making the cutting path more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of plate pattern cutting, and in particular to a control method and system for a plate pattern cutting path. Background Art

[0002] Using a cutting machine to cut plate patterns is a very important process in modern manufacturing. Usually, it is necessary to plan the cutting path of the cutting machine. Specifically, by obtaining the plate pattern image and preprocessing the plate pattern image, the contrast of the image can be effectively enhanced, which is convenient for contour extraction.

[0003] In traditional cutting path planning, the extracted contour is not adequately processed. For example, redundant contour lines are not removed, and the part of the contour that exceeds the width of the cutting machine worktable is not removed, which results in deviation and inaccuracy in the generated cutting path. Summary of the invention

[0004] The purpose of the present invention is to provide a control method and system for the cutting path of a plate pattern. By performing contour fitting and smoothing processing on the bottom contour of a third plate pattern three-dimensional image, the cut pattern surface is made more rounded, and deviations in the cutting path are effectively avoided, making the cutting path more accurate. This aims to solve the problem of insufficient processing of the extracted contour in traditional cutting path planning in the prior art.

[0005] The present invention is implemented in this way: a control method for a plate pattern cutting path is applied to a plate cutting device and specifically comprises the following steps:

[0006] S101: obtaining a plate pattern to be cut on a cutting path template, and pre-generating the plate pattern by copying it according to the identification lines on the cutting path template;

[0007] S102: obtaining a curve profile in a pre-generated plate pattern, capturing a curve regression point in the curve profile, obtaining an edge-sealing frame in the pre-generated plate pattern image according to the curve regression point, and filling the obtained edge-sealing frame to obtain a second plate pattern plane image;

[0008] S103: setting a vertical extension characteristic coefficient of the pattern plane image, and vertically extending the obtained second plate pattern plane image along the set extension characteristic coefficient to obtain a third plate pattern three-dimensional image;

[0009] S104: performing contour fitting and smoothing processing on the bottom contour of the third plate pattern 3D image to obtain a fourth plate pattern 3D image, and then performing external contour extraction on the fourth plate pattern 3D image;

[0010] S105: After extracting the fourth plate pattern stereoscopic image, perform horizontal two-dimensional cross-section segmentation. After the segmentation is completed, start the plate pattern cutting respectively, cut off the segmented two-dimensional cross-sections on the plate, and generate a control instruction for the cutting machine.

[0011] Further, in S101, a plate pattern to be cut is obtained on a cutting path template, including:

[0012] Receiving a plate pattern sent by a user terminal through a preset network, identifying the plate pattern, and confirming whether to generate a cutting path template after the identification is completed;

[0013] Detecting whether the plate pattern transmitted by the user terminal has been transmitted;

[0014] If the sheet pattern has been delivered, the sheet pattern is placed in a pattern recognition model preset by the system for recognition. After the recognition is confirmed, the generation of a cutting path template is confirmed.

[0015] Further, the method of confirming that the plate pattern has been delivered is:

[0016] Get the current data download rate of the preset network. If the current download data is lower than the system preset download rate, get the current data upload rate.

[0017] It is determined whether the current data upload rate is equal to the current download data. If the current data upload rate is equal to the current download data, it is determined that the sheet pattern has been transported.

[0018] Furthermore, if the sheet pattern has been delivered, the sheet pattern is placed in a recognition model preset by the system for recognition, including:

[0019] Acquire multiple pattern recognition models, and sort the multiple pattern recognition models in order of the marked sequence;

[0020] The pattern text of the plate pattern is obtained, and the plate pattern is input into the pattern recognition model ranked first.

[0021] Furthermore, the preset network includes one or a combination of a 3G network, a 4G network, a 5G network, and a WIFI network.

[0022] Further, in S102, a curve profile in a pre-generated plate pattern is obtained, and a curve regression point in the curve profile is captured, including:

[0023] Identify edge contour points on the plate pattern copied by the cutting path template, and connect the curves through the identified edge contour points to generate a curve contour;

[0024] Through curve regression analysis or nonlinear regression analysis, the least squares method is used to analyze the characteristics and laws of the curve profile in terms of quantitative changes and determine the curve regression point.

[0025] Furthermore, in S104, a contour fitting and smoothing process is performed on the bottom contour of the third plate pattern 3D image to obtain a fourth plate pattern 3D image, including:

[0026] Identify the bottom plate pattern plane image of the third plate pattern three-dimensional image, and capture and fit the edge contour of the bottom plate pattern plane image;

[0027] The edge contour that is captured and fitted is chamfered, and after cutting, the edge contour is captured again, and the vertical surface of the captured edge contour is smoothed, so that the contour fitting smoothing process is completed.

[0028] Compared with the prior art, the control method and system of the plate pattern cutting path provided by the present invention have the following beneficial effects:

[0029] 1. Pre-generate the plate pattern by copying it in the cutting path template of the system, and then grab the curve regression point in the curve contour of the pre-generated plate pattern, obtain the edge frame in the pre-generated plate pattern image according to the curve regression point, fill the obtained edge frame to obtain the second plate pattern plane image, and finally generate the third plate pattern three-dimensional image by using the second plate pattern plane image, and use the cutter of the plate cutting equipment to cut the constructed third plate pattern three-dimensional image on the plate, that is, to obtain the plate pattern, and use the two-dimensional cross-section cutting one by one to make the cutting more accurate, and make the bottom contour of the third plate pattern three-dimensional image contour fitting and smoothing processing to make the cut pattern surface more rounded, effectively avoid the deviation of the cutting path, and make the cutting path more accurate;

[0030] 2. Set the vertical extension characteristic coefficient of the pattern plane image, vertically extend the second plate pattern plane image along the set extension characteristic coefficient, and obtain the third plate pattern three-dimensional image, that is, the set vertical extension characteristic coefficient of the pattern plane image cannot be greater than the characteristic coefficient of the plate thickness, so as to ensure that the cut pattern can be hollow, that is, the characteristic coefficient is equal to the plate thickness, or a recessed groove, that is, the characteristic coefficient is less than the plate thickness, and it removes the constructed third plate pattern three-dimensional image in the plate through two-dimensional cross-section cutting, thereby facilitating continuous operation of the cutting equipment, and also ensuring that the plate cutting equipment can control the cutting of the contour edge without the need for subsequent processing.

[0031] A control system for a plate pattern cutting path is applied to the above-mentioned control method for the plate pattern cutting path, and the control system comprises:

[0032] Creation module for creating cutting path templates in the control system;

[0033] A copy module is used to obtain the plate pattern to be cut according to the cutting path template, identify the lines and copy to complete the pre-generation of the plate pattern;

[0034] A two-dimensional generation module is used to capture the curve regression point in the curve profile, obtain the edge banding frame in the pre-generated plate pattern image according to the curve regression point, and obtain the second plate pattern plane image;

[0035] A three-dimensional generation module, used for vertically extending the obtained second plate pattern plane image along the set extension characteristic coefficient to obtain a third plate pattern three-dimensional image;

[0036] A three-dimensional processing module, used for performing contour fitting and smoothing processing on the bottom contour of the third plate pattern three-dimensional image and performing horizontal two-dimensional cross-section segmentation;

[0037] The execution module is used to execute a cutting process on the plate through the acquired third plate pattern stereoscopic image to generate a plate cutting pattern.

[0038] Specifically, the two-dimensional generation module includes:

[0039] A light projection unit, used for performing light projection on the plate pattern copied by the copying module;

[0040] The inductive pickup unit is used to identify the contour space on the plate pattern. The light projection unit irradiates the cutting path template. The inductive pickup unit includes a plurality of photosensitive points arranged on the cutting path template. The photosensitive points identify the contour space on the plate pattern.

[0041] Specifically, the three-dimensional processing module includes:

[0042] A fitting and smoothing processing unit, used for performing a contour fitting and smoothing process on the bottom contour of the third plate pattern 3D image to obtain a fourth plate pattern 3D image;

[0043] The two-dimensional section cutting unit is used to extract the fourth plate pattern stereoscopic image and then perform horizontal two-dimensional section segmentation, that is, to obtain multiple two-dimensional sections. When executing the cutting program, the plate cutting device cuts the two-dimensional sections one by one and finally completes the plate pattern cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic flow chart of the method for controlling the plate pattern cutting path proposed by the present invention;

[0045] Figure 2A schematic block diagram of the process of obtaining a plate pattern to be cut on a cutting path template in the control method of the plate pattern cutting path proposed by the present invention;

[0046] Figure 3 This is a schematic diagram of the structure of the control system for the plate pattern cutting path proposed by the present invention;

[0047] Figure 4 It is a structural schematic diagram of a two-dimensional generation module in the control system of the plate pattern cutting path proposed by the present invention;

[0048] Figure 5 This is a schematic diagram of the structure of a three-dimensional processing module in the control system of the plate pattern cutting path proposed by the present invention. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0050] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0051] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0052] Reference Figure 1-2 As shown, the control method of the plate pattern cutting path is applied to the plate cutting equipment, and specifically includes the following steps:

[0053] S101: obtaining a plate pattern to be cut on a cutting path template, and pre-generating the plate pattern by copying it on the cutting path template according to the identification lines. The plate pattern is copied by projection, and a projection image of the plate pattern to be cut is obtained by projecting the plate pattern to be cut;

[0054] The process of obtaining a plate pattern to be cut on a cutting path template includes:

[0055] Receive the plate pattern sent by the user terminal through the preset network, identify the plate pattern, and confirm whether to generate a cutting path template after the identification is completed;

[0056] Detect whether the plate pattern transmitted by the user terminal has been transmitted;

[0057] If the plate pattern has been delivered, it will be placed in the system's preset pattern recognition model for recognition. After the recognition is completed, the cutting path template will be generated.

[0058] S102: obtaining a curve profile in a pre-generated plate pattern, capturing a curve regression point in the curve profile, obtaining an edge-sealing frame in the pre-generated plate pattern image according to the curve regression point, and filling the obtained edge-sealing frame to obtain a second plate pattern plane image;

[0059] The process of obtaining the curve profile in the pre-generated plate pattern and grabbing the curve regression point in the curve profile includes:

[0060] Identify edge contour points on the plate pattern copied by the cutting path template, and connect the curves through the identified edge contour points to generate a curve contour;

[0061] Through curve regression analysis or nonlinear regression analysis, the least square method is used to analyze the characteristics and laws of the curve profile in terms of quantity changes, and the curve regression point is determined;

[0062] S103: setting a vertical extension characteristic coefficient of the pattern plane image, and vertically extending the obtained second plate pattern plane image along the set extension characteristic coefficient to obtain a third plate pattern three-dimensional image;

[0063] S104: performing contour fitting and smoothing processing on the bottom contour of the third plate pattern 3D image to obtain a fourth plate pattern 3D image, and then performing external contour extraction on the fourth plate pattern 3D image;

[0064] The bottom contour of the third plate pattern three-dimensional image is subjected to contour fitting and smoothing processing to obtain a fourth plate pattern three-dimensional image, including:

[0065] Identify the bottom plate pattern plane image of the third plate pattern three-dimensional image, and capture and fit the edge contour of the bottom plate pattern plane image;

[0066] The edge contour captured and fitted is chamfered, and the edge contour is captured again after cutting, and the vertical surface of the captured edge contour is smoothed, that is, the contour fitting and smoothing process is completed;

[0067] S105: After extracting the fourth plate pattern three-dimensional image, perform horizontal two-dimensional cross-section segmentation. After the segmentation is completed, start the plate pattern cutting respectively, cut off the segmented two-dimensional cross-sections on the plate, and generate control instructions for the cutting machine. The technical solution pre-generates the plate pattern by copying the plate pattern in the cutting path template of the system, and then grabs the curve regression point in the curve contour of the pre-generated plate pattern, obtains the edge sealing frame in the pre-generated plate pattern image according to the curve regression point, fills the obtained edge sealing frame to obtain the second plate pattern plane image, and finally generates the third plate pattern three-dimensional image by using the second plate pattern plane image, and uses the cutter of the plate cutting device to cut off the constructed third plate pattern three-dimensional image on the plate, that is, obtain the plate pattern, and use the cutting of the two-dimensional cross-sections one by one to make the cutting more accurate, and by performing contour fitting and smoothing processing on the bottom contour of the third plate pattern three-dimensional image, the cut pattern surface is more rounded, which effectively avoids the deviation of the cutting path and makes the cutting path more accurate.

[0068] In S101 of this embodiment, the method of confirming that the plate pattern has been delivered is: obtaining the current data download rate of the preset network, and if the current download data is lower than the system preset download rate, then obtaining the current data upload rate; judging whether the obtained current data upload rate is equal to the current download data, and if the current data upload rate is equal to the current download data, then determining that the plate pattern has been delivered;

[0069] If the plate pattern has been delivered, it will be placed in the system preset recognition model for recognition according to the plate pattern, including:

[0070] Acquire multiple pattern recognition models, and sort the multiple pattern recognition models in the order of the marked sequence;

[0071] The pattern text of the plate pattern is obtained, and the plate pattern is input into the first-ranked pattern recognition model. The constructed third plate pattern three-dimensional image is removed in the plate through two-dimensional cross-section cutting, thereby facilitating continuous operation of the cutting equipment. At the same time, it also ensures that the plate cutting equipment can control the cutting of the contour edge without the need for subsequent processing.

[0072] In this embodiment, the preset network includes one or a combination of a 3G network, a 4G network, a 5G network, and a WIFI network.

[0073] Reference Figure 3-5As shown, a control system for a plate pattern cutting path is applied to the control method for the plate pattern cutting path mentioned above, and the control system includes: a creation module, which is used to create a cutting path template in the control system; a copy module, which is used to obtain the plate pattern to be cut in the cutting path template, identify the lines and copy to complete the pre-generation of the plate pattern; a two-dimensional generation module, which is used to capture the curve regression point in the curve contour, obtain the edge sealing frame in the pre-generated plate pattern image according to the curve regression point, and obtain the second plate pattern plane image; a three-dimensional generation module, which is used to vertically extend the obtained second plate pattern plane image along the set extension feature coefficient to obtain a third plate pattern three-dimensional image; a three-dimensional processing module, which is used to perform contour fitting and smoothing processing on the bottom contour of the third plate pattern three-dimensional image and horizontal two-dimensional cross-section segmentation; an execution module, which is used to execute the obtained third plate pattern on the plate Cutting processing of a three-dimensional image of a plate pattern to generate a plate cutting pattern; pre-generating the plate pattern by copying the plate pattern in the cutting path template of the system, grabbing the curve regression point in the curve contour of the pre-generated plate pattern, obtaining the edge sealing frame in the pre-generated plate pattern image according to the curve regression point, filling the obtained edge sealing frame to obtain a second plate pattern plane image, and finally generating a third plate pattern three-dimensional image using the second plate pattern plane image, using the cutter of the plate cutting device to cut the constructed third plate pattern three-dimensional image on the plate, that is, to obtain the plate pattern, using the cutting of the two-dimensional cross-sections one by one to make the cutting more accurate, and performing contour fitting and smoothing processing on the bottom contour of the third plate pattern three-dimensional image to make the cut pattern surface more rounded, effectively avoiding deviation in the cutting path and making the cutting path more accurate;

[0074] In this embodiment, the two-dimensional generation module includes: a light projection unit, which is used to perform light projection on the plate pattern copied by the copying module; a sensing pickup unit, which is used to identify the contour space on the plate pattern. The light projection unit is irradiated on the cutting path template, and the sensing pickup unit includes a plurality of photosensitive points arranged on the cutting path template, and the photosensitive points identify the contour space on the plate pattern.

[0075] In this embodiment, the three-dimensional processing module includes: a fitting and smoothing processing unit, which is used to perform contour fitting and smoothing processing on the bottom contour of the third plate pattern stereo image to obtain a fourth plate pattern stereo image; a two-dimensional section cutting unit, which is used to extract the fourth plate pattern stereo image and then perform horizontal two-dimensional section segmentation, that is, to obtain multiple two-dimensional sections. When executing the cutting program, the plate cutting device performs the cutting of the two-dimensional sections one by one, and finally completes the plate pattern cutting. The technical solution sets the vertical extension characteristic coefficient of the pattern plane image, and vertically extends the obtained second plate pattern plane image along the set extension characteristic coefficient to obtain the third plate pattern stereo image, that is, the set vertical extension characteristic coefficient of the pattern plane image cannot be greater than the characteristic coefficient of the plate thickness, thereby ensuring that the cut pattern can be hollow, that is, the characteristic coefficient is equal to the plate thickness, or the concave groove is less than the plate thickness, and it removes the constructed third plate pattern stereo image in the plate through two-dimensional section cutting, thereby facilitating the continuous operation of the cutting equipment, and also ensuring that the plate cutting equipment controls the cutting of the contour edge without the need for subsequent processing.

[0076] In this embodiment, the entire operation process can be controlled by a computer, and with the addition of a PLC, etc., automated operation control can be achieved. In each operation link, sensors can be set up to provide signal feedback to achieve sequential execution of steps. These are all common knowledge of current automated control and will not be described in detail in this embodiment.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for controlling a plate pattern cutting path, characterized in that: Applied to plate cutting equipment, specifically including the following steps: S101: obtaining a plate pattern to be cut on a cutting path template, and pre-generating the plate pattern by copying it according to the identification lines on the cutting path template; S102: obtaining a curve profile in a pre-generated plate pattern, capturing a curve regression point in the curve profile, obtaining an edge-sealing frame in the pre-generated plate pattern image according to the curve regression point, and filling the obtained edge-sealing frame to obtain a second plate pattern plane image; S103: setting a vertical extension characteristic coefficient of the pattern plane image, and vertically extending the obtained second plate pattern plane image along the set extension characteristic coefficient to obtain a third plate pattern three-dimensional image; S104: performing contour fitting and smoothing processing on the bottom contour of the third plate pattern 3D image to obtain a fourth plate pattern 3D image, and then performing external contour extraction on the fourth plate pattern 3D image; S105: After extracting the fourth plate pattern stereoscopic image, perform horizontal two-dimensional cross-section segmentation. After the segmentation is completed, start the plate pattern cutting respectively, cut off the segmented two-dimensional cross-sections on the plate, and generate a control instruction for the cutting machine.

2. The method for controlling the plate pattern cutting path according to claim 1, characterized in that: In S101, a plate pattern to be cut is obtained on a cutting path template, including: Receiving a plate pattern sent by a user terminal through a preset network, identifying the plate pattern, and confirming whether to generate a cutting path template after the identification is completed; Detecting whether the plate pattern transmitted by the user terminal has been transmitted; If the sheet pattern has been delivered, the sheet pattern is placed in a pattern recognition model preset by the system for recognition. After the recognition is confirmed, the generation of a cutting path template is confirmed.

3. The method for controlling the plate pattern cutting path according to claim 2, characterized in that: The method of confirming that the sheet pattern has been delivered is: Get the current data download rate of the preset network. If the current download data is lower than the system preset download rate, get the current data upload rate. It is determined whether the current data upload rate is equal to the current download data. If the current data upload rate is equal to the current download data, it is determined that the sheet pattern has been transported.

4. The method for controlling the plate pattern cutting path according to claim 3, characterized in that: If the sheet pattern has been delivered, the sheet pattern is placed in a recognition model preset by the system for recognition, including: Acquire multiple pattern recognition models, and sort the multiple pattern recognition models in order of the marked sequence; The pattern text of the plate pattern is obtained, and the plate pattern is input into the pattern recognition model ranked first.

5. The method for controlling the plate pattern cutting path according to claim 4, characterized in that: The preset network includes one or a combination of a 3G network, a 4G network, a 5G network, and a WIFI network.

6. The method for controlling the plate pattern cutting path according to claim 5, characterized in that: In S102, a curve profile in a pre-generated plate pattern is obtained, and a curve regression point in the curve profile is captured, including: Identify edge contour points on the plate pattern copied by the cutting path template, and connect the curves through the identified edge contour points to generate a curve contour; Through curve regression analysis or nonlinear regression analysis, the least squares method is used to analyze the characteristics and laws of the curve profile in terms of quantitative changes and determine the curve regression point.

7. The method for controlling the plate pattern cutting path according to claim 6, characterized in that: In S104, a contour fitting and smoothing process is performed on the bottom contour of the third plate pattern 3D image to obtain a fourth plate pattern 3D image, including: Recognize the bottom plate pattern plane image of the third plate pattern three-dimensional image, and capture and fit the edge contour of the bottom plate pattern plane image; The captured and fitted edge contour is chamfered, and the edge contour is captured again after cutting, and the captured edge contour is vertically smoothed, so that the contour fitting smoothing process is completed.

8. A control system for the plate pattern cutting path, characterized in that: The control method for controlling the plate pattern cutting path according to any one of claims 1 to 7, wherein the control system comprises: Creation module for creating cutting path templates in the control system; A copy module is used to obtain the plate pattern to be cut according to the cutting path template, identify the lines and copy to complete the pre-generation of the plate pattern; A two-dimensional generation module is used to capture the curve regression point in the curve profile, obtain the edge banding frame in the pre-generated plate pattern image according to the curve regression point, and obtain the second plate pattern plane image; A three-dimensional generation module, used for vertically extending the obtained second plate pattern plane image along the set extension characteristic coefficient to obtain a third plate pattern three-dimensional image; A three-dimensional processing module, used for performing contour fitting and smoothing processing on the bottom contour of the third plate pattern three-dimensional image and performing horizontal two-dimensional cross-section segmentation; The execution module is used to execute a cutting process on the plate through the acquired third plate pattern stereoscopic image to generate a plate cutting pattern.

9. The control system for the plate pattern cutting path according to claim 8, characterized in that: The two-dimensional generation module comprises: A light projection unit, used for performing light projection on the plate pattern copied by the copying module; The inductive pickup unit is used to identify the contour space on the plate pattern. The light projection unit irradiates the cutting path template. The inductive pickup unit includes a plurality of photosensitive points arranged on the cutting path template. The photosensitive points identify the contour space on the plate pattern.

10. The control system for the plate pattern cutting path according to claim 9, characterized in that: The three-dimensional processing module includes: A fitting and smoothing processing unit, used for performing a contour fitting and smoothing process on the bottom contour of the third plate pattern 3D image to obtain a fourth plate pattern 3D image; The two-dimensional section cutting unit is used to extract the fourth plate pattern stereoscopic image and then perform horizontal two-dimensional section segmentation, that is, to obtain multiple two-dimensional sections. When executing the cutting program, the plate cutting device cuts the two-dimensional sections one by one and finally completes the plate pattern cutting.

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