Cutting adjusting method and system of laser cutting machine
By obtaining blank specifications and real-time thickness information, dynamically adjusting the laser power and cutting path of the laser cutting machine, combined with the roller adhesion of dust, the problems of uneven thickness of the blank and the influence of dust are solved, and the cutting quality and accuracy of laser cutting are improved.
Patent Information
- Application Number
- CN202411410680.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2044-10-10
AI Technical Summary
When existing laser cutting machines cut non-metallic or metal blanks, the laser power mismatch caused by uneven thickness of the blank will affect the cutting quality and lead to poor cutting effect.
By obtaining blank specifications, real-time thickness and shape, dynamically adjusting the laser power, adjusting the cutting path and laser power in real time according to the thickness deviation information, optimizing cutting with radian information, and using a roller to adhere dust to reduce adverse effects.
The cutting quality of laser cutting is improved, ensuring uniform cutting of different thickness areas of the blank, reducing the negative impact of dust on the cutting process, and improving cutting accuracy and efficiency.
Smart Images

Figure CN119098690A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of laser cutting machines, and in particular to a cutting adjustment method and system for a laser cutting machine. Background Art
[0002] At present, laser cutting machine is a device that uses laser technology to cut non-metal or metal. Laser cutting machine has the advantages of fast cutting speed, high precision, smooth cutting surface without burrs and small heat-affected zone.
[0003] In the prior art, in the process of laser cutting of non-metal or metal blanks, the blanks are usually placed in the cutting area of a laser cutting machine, and different blank specifications and the required cutting shapes are input into related equipment to form the cutting path of the laser cutting machine, and the laser cutting head of the laser cutting machine is controlled to move and cut according to the cutting path and fixed laser power.
[0004] Regarding the above-mentioned related technologies, in the actual process of cutting the blank, different areas of the blank have different thicknesses. If cutting to a thinner area on the blank, using a fixed laser power will cause the thinner area on the blank to melt too quickly and affect the cutting effect. If cutting to a thicker area on the blank, using a fixed laser power will cause the thicker area on the blank to not melt easily and affect the cutting effect, thereby reducing the cutting quality of laser cutting. Summary of the invention
[0005] In order to improve the cutting quality of laser cutting, the present invention provides a cutting adjustment method and system for a laser cutting machine.
[0006] In a first aspect, the present invention provides a cutting adjustment method for a laser cutting machine, which adopts the following technical solution: A cutting adjustment method for a laser cutting machine, comprising: Obtain the specifications of the blank to be cut, the shape of the product obtained after cutting, and the real-time blank thickness; Retrieve the reference blank thickness based on the blank specifications; Matching a reference power from a preset laser database based on the reference blank thickness; Determine the cutting path according to the product shape; Determine the real-time cutting thickness according to the real-time blank thickness and cutting path; Determine thickness deviation information based on the comparison between the reference blank thickness and the real-time cutting thickness; Matching the adjustment power from the laser database based on the thickness deviation information and adjusting the reference power to determine the changed power; The thickness deviation information, power change and cutting path are used as laser control information and output to a preset laser cutting device to cut the blank.
[0007] Optionally, the thickness deviation information can be determined by: Determine the arc position on the cutting path according to the real-time cutting thickness, and use the arc position of the upper surface of the blank as the upper surface arc position, and the arc position of the lower surface of the blank as the lower surface arc position; Determine whether the same vertical arc position on the cutting path has both an upper surface arc position and a lower surface arc position; If it does not exist, the upper surface arc position or the lower surface arc position is used as the thickness deviation position; If it exists, the arc position where the arc position of the upper surface and the arc position of the lower surface exist simultaneously is taken as the mark position; Determine the real-time arc thickness according to the marking position and the real-time cutting thickness; Determine the thickness deviation position according to the consistency between the real-time arc thickness and the reference blank thickness and the arc position; The difference between the real-time arc thickness and the reference blank thickness is calculated as the thickness deviation value, and the thickness deviation value and the thickness deviation position are used as thickness deviation information.
[0008] Optionally, specific steps for determining the thickness deviation position according to the consistency between the real-time arc thickness and the reference blank thickness and the arc position: Determine whether the arc directions of the upper surface arc position and the lower surface arc position are consistent and the arc angles of the upper surface arc position and the lower surface arc position are inconsistent at the same time; If both conditions are not met, the marked position where the real-time arc thickness is inconsistent with the reference blank thickness is taken as the thickness deviation position; If both conditions are met, the arc distance is determined based on the marking position and the cutting path; According to the arc distance and the real-time arc thickness, the distance at which the real-time arc thickness is consistent with the reference thickness value is determined as the arc reference distance; The difference between the arc distance and the arc reference distance is calculated and used as the arc deviation distance; The arc deviation position is determined according to the arc deviation distance, and the arc deviation position is used as the thickness deviation position.
[0009] Optionally, the method further includes the following specific steps after determining the arc position on the cutting path: Obtain image detection information of the blank and roller specifications of the roller; Forming a reference blank image according to blank specifications; Select the dust position on the cutting path according to the comparison between the image detection information and the reference blank image; Retrieve the base roller width of the roller based on the roller specifications; Determine the roller center position of the roller according to the reference roller width; Determine the shortest adhesion path of the roller according to the cutting path, the reference roller width and the center position of the roller; The shortest adhesion path is used as roller control information and output to a preset roller device to adhere the dust.
[0010] Optional method for determining the shortest adhesion path: Determine the roller area according to the roller specifications; Determine product area based on product shape; Determine whether the product area is smaller than the drum area; If it is less than, the maximum product width of the product is determined according to the product shape; Determine the rolling path of the roller device as the shortest adhesion path according to the maximum product width, the reference roller width and the center position of the roller; If it is not less than, the initial adhesion path is selected according to the dust position, and the unselected paths in the cutting path are used as other paths; Calculate the horizontal distance between the initial adhesion path and other paths as the horizontal distance; Determine whether the horizontal distance is less than the reference roller width; If it is not less than, the cutting path is taken as the shortest adhesion path; If it is less than, the remaining path is determined based on the initial adhesion path, the reference roller width, and the cutting path; The remaining adhesion path is determined according to the remaining path and the reference roller width, and the initial adhesion path and the remaining adhesion path are taken as the shortest adhesion path.
[0011] Optionally, specific steps for selecting an initial adhesion path according to the dust position: Select the side path of the product side based on the cutting path and product shape; Overlap the side path with the roller center position of the roller, and determine the roller adhesion range based on the reference roller width and the side path; Determine the amount of dust at each dust location based on the roller adhesion range and dust location; Based on the amount of dust, the side path with the largest amount of dust is selected as the initial adhesion path; If and only if the number of each dust is the same, the inclined path is determined according to the cutting path and the reference cutting method preset by the laser cutting device; According to the inclined path, the distance between the two end points of the inclined path parallel to the reference roller width is determined as the maximum adhesion distance; Determine whether the maximum adhesion distance is less than the reference roller width; If it is less than , the initial adhesion path is determined according to the position of the center of the maximum adhesion distance; If it is not less than, the inclined path is taken as the initial adhesion path.
[0012] Optionally, the method further includes the following specific steps after using the shortest adhesion path as the roller control information: Acquire a real-time drum image of the drum, and form a virtual drum model based on the real-time drum image; Determine the dust percentage based on the virtual roller model, the preset roller color, and the center position of the roller; According to the dust percentage, the virtual roller model and the center position of the roller, the side with the smallest dust percentage on the left and right sides of the roller is determined as the most adhered position; Determine the dust distribution location based on the shortest adhesion path and the dust location; Based on the correspondence between the most adhered position and the dust distribution position, roller adhesion information is formed; The roller adhesion information is added to the roller control information to form new roller control information, and the roller control information is output to the roller device.
[0013] Optionally, the method further includes the following specific steps after adding the roller adhesion information to the roller control information to form new roller control information: Determine whether there is dust in the arc position based on the dust position; If it does not exist, continue to output the roller control information to the roller device; If it exists, the arc top position and arc type are determined according to the real-time cutting thickness, the reference blank thickness and the arc position, and the arc type when the real-time cutting thickness is less than the reference blank thickness is used as a concave arc, and the arc type when the real-time cutting thickness is greater than the reference blank thickness is used as a convex arc; Determine whether the cutting path is located at the top of the convex arc; If it is, continue to output the roller control information; If it is not located, the convex arc path position is determined according to the arc top position and the cutting path; Based on the center position of the roller, the convex arc path position is selected at the opposite side of the arc top position as the convex arc roller adhesion position; Determine and adjust the adhesion path according to the adhesion position of the convex arc roller and the shortest adhesion path; The shortest adhesion path in the roller control information is replaced by the adjusted adhesion path to form new roller control information and output it to the roller device.
[0014] Optionally, the method further includes the following specific steps before determining whether the cutting path is located at the top of the convex arc: Obtaining the reference deviation area between the arc position and the blank surface; Based on the dust percentage, the side of the roller with the least dust percentage is selected as the inclined adhesion position; Based on the cutting path, the position of the path in the concave arc position is retrieved as the concave arc path position; Determine the tilt angle based on the reference deviation area and the concave arc path position; Determine the initial tilt path according to the center position of the roller, the tilted adhesion position and the shortest adhesion path; Determine whether the concave arc path position is located at the arc top position of the concave arc; If it is located, the initial tilt path and tilt angle are added to the roller control information to form new roller control information; If it is not located, the horizontal rotation angle of the roller is determined according to the center position of the roller, the inclined adhesion position and the concave arc path position; Determine the change of the adhesion path according to the inclined adhesion position and the shortest adhesion path; The shortest adhesion path in the roller control information is replaced by changing the adhesion path and the tilt angle and the horizontal rotation angle are added to form new roller control information and output it to the roller device.
[0015] In a second aspect, the present application provides a cutting adjustment system for a laser cutting machine, which adopts the following technical solution: A cutting adjustment system for a laser cutting machine, comprising: An acquisition module is used to obtain blank specifications, product shape, real-time blank thickness, image detection information, roller specifications, real-time roller image, and reference deviation area; A memory, used to store a program of a cutting adjustment method for a laser cutting machine as described in any one of the first aspects; The program in the processor memory can be loaded and executed by the processor to implement a cutting adjustment method for a laser cutting machine as described in any one of the first aspects.
[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. The thickness deviation information on the cutting path is determined by the blank specification, product shape and real-time blank thickness, and the laser control information is determined by the thickness deviation information and output to the laser cutting equipment, so that the laser power of the laser cutting machine can be adjusted in real time when a single blank has different thicknesses, thereby reducing the impact of fixed laser power on the blank cutting effect, such as difficulty in melting or melting too quickly, and improving the cutting quality of laser cutting; 2. By analyzing the curvature of the upper and lower surfaces of the blank, the position where the curvature exists on the upper or lower surface of the vertical curvature is used as the thickness deviation position, and the marked position where the curvature exists on both the upper and lower surfaces is analyzed, and the marked position where the real-time curvature thickness is inconsistent with the reference blank thickness is used as the thickness deviation information, so as to improve the accuracy of blank thickness detection by analyzing the existence of curvature; 3. When there is dust on the surface of the blank, the shortest adhesion path required for the roller to adhere to the dust is determined by the cutting path reference roller width and the center position of the roller, so that the dust on the cutting path can be adhered when the roller runs the shortest path, thereby reducing the impact of dust explosion or harmful gas generation during laser cutting. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a flow chart of a cutting adjustment method of a laser cutting machine according to an embodiment of the present invention; Figure 2 is a flow chart of a method after determining the arc position on the cutting path according to an embodiment of the present invention; Figure 3 It is a flow chart of a method according to an embodiment of the present invention after the shortest adhesion path is used as roller control information. DETAILED DESCRIPTION
[0018] The following is combined with Figures 1 to 3 The present invention is further described in detail with examples.
[0019] A cutting adjustment method and system for a laser cutting machine, which adjusts the power of the laser generated by the laser cutting machine in real time by measuring the thickness of a single blank on a path corresponding to laser cutting of the single blank, and further analyzes the curvature of the concave and convex parts on the blank, the direction of the curvature of the concave and convex parts, the cleaning of dust on the blank by a roller, and the cleaning path of the roller when the curvature exists, thereby reducing the influence of different thicknesses and dust on a single blank on the effect of laser cutting, thereby improving the cutting quality of laser cutting.
[0020] Reference Figure 1 The present application embodiment discloses a cutting adjustment method of a laser cutting machine, comprising the following steps: Step S100: Obtain the specifications of the blank to be cut, the shape of the product obtained after cutting, and the real-time blank thickness.
[0021] Blank specifications refer to the size, shape, color and other parameter specifications corresponding to the blank to be cut. The operator manually inputs the parameters of the blank to be cut as the blank specifications. Product shape refers to the shape of the product obtained after cutting the blank. The operator manually inputs the size parameters of the required product to form the product shape. Real-time blank thickness refers to the thickness of the blank detected in real time. The parameter obtained by the blank detection device preset on the laser detection equipment is used as the real-time blank thickness.
[0022] In this embodiment, the thickness detection device detects the blank through two vertical infrared detection devices. The distance corresponding to the two infrared detection devices irradiating the blank located between the two infrared rays is calculated to obtain the parameters of the blank. If there is a curvature on the upper or lower surface of the blank, there is a deviation in the corresponding infrared detection distance, so that the operator can know the position of the surface where the curvature of the blank appears.
[0023] Step S101: Retrieve the reference blank thickness based on the blank specification.
[0024] The reference blank thickness refers to the reference thickness corresponding to the blank to be cut. The reference blank thickness is retrieved from the blank specifications to facilitate subsequent analysis.
[0025] Step S102: matching a reference power from a preset laser database based on a reference blank thickness.
[0026] The reference power refers to the thickness corresponding to the reference blank thickness cut by the laser cutting equipment. The reference power is retrieved from the laser database by matching the reference blank thickness. The laser database artificially stores the power generated by the laser cutting equipment corresponding to different blank thicknesses in advance, which will not be elaborated here.
[0027] Step S103: Determine the cutting path according to the product shape.
[0028] The cutting path refers to the path corresponding to the product shape cut by the laser cutting equipment on the blank. The parameters corresponding to the product shape are input into the laser cutting equipment to form the corresponding path as the cutting path.
[0029] Step S104: determining the real-time cutting thickness according to the real-time blank thickness and the cutting path.
[0030] Real-time cutting thickness refers to the real-time detection of the thickness of the blank on the cutting path, and the corresponding thickness on the cutting path is retrieved from the real-time blank thickness as the real-time cutting thickness.
[0031] Step S105: Determine thickness deviation information based on the comparison between the reference blank thickness and the real-time cutting thickness.
[0032] Thickness deviation information refers to parameter information of thickness deviation on the blank. By comparing the reference blank thickness with the real-time cutting thickness, the parameter information of the position where the reference blank thickness is inconsistent with the real-time cutting thickness and the deviation value are combined to form thickness deviation information.
[0033] Step S106: matching the adjustment power from the laser database based on the thickness deviation information and adjusting the reference power to determine the changed power.
[0034] Adjusted power refers to the power that needs to be adjusted by the laser cutting equipment. The adjusted power is retrieved and matched from the laser database through the thickness deviation information. Changed power refers to the power after the laser cutting equipment is changed. The reference power is adjusted by the positive and negative conditions of the adjusted power. The sum of the reference power and the adjusted power is calculated and used as the changed power to facilitate subsequent analysis.
[0035] For example, when the laser cutting device cuts to a position where thickness deviation information exists, the reference power of the laser cutting device is adjusted to the changed power.
[0036] Step S107: The thickness deviation information, power change and cutting path are used as laser control information and output to a preset laser cutting device to cut the blank.
[0037] Laser control information refers to the control information that controls the laser cutting equipment to cut. The laser control information is formed by combining the thickness deviation information, cutting path and parameters corresponding to the reference power. In this way, the laser power of the laser cutting machine can be adjusted in real time when a single blank has different thicknesses, thereby improving the cutting quality of laser cutting.
[0038] exist Figure 1 In step S105 shown, in order to further ensure the rationality of the method for determining the thickness deviation information, it is necessary to perform further separate analysis and calculation on the method for determining the thickness deviation information, which is specifically described in detail through the following steps.
[0039] Method for determining thickness deviation information: Step S200: determining the arc position on the cutting path according to the real-time cutting thickness, and taking the arc position of the upper surface of the blank as the upper surface arc position, and taking the arc position of the lower surface of the blank as the lower surface arc position.
[0040] The arc position refers to the position where the arc exists on the blank that needs to be cut, the upper surface arc position refers to the position where the arc exists on the upper surface of the blank that needs to be cut, and the lower surface arc position refers to the position where the arc exists on the lower surface of the blank that needs to be cut. The arc position is determined by detecting parameter changes of the infrared detection of two thickness detection devices and detecting the surface and position of the corresponding blank through infrared changes, and the position on the blank corresponding to the surface of the laser head of the laser cutting machine and where the arc exists is taken as the upper surface arc position, and the position on the blank surface relative to the upper surface arc position and where the arc exists is taken as the lower surface arc position.
[0041] Step S201: Determine whether the same vertical arc position on the cutting path has both an upper surface arc position and a lower surface arc position. If not, jump to step S202. Step S203: If yes, jump to step S203.
[0042] By judging whether the upper surface arc position and the lower surface arc position exist at the same vertical arc position on the cutting path, it is judged whether the real-time cutting thickness is consistent with the reference blank thickness.
[0043] Step S202: taking the upper surface curvature position or the lower surface curvature position as the thickness deviation position.
[0044] The thickness deviation position refers to the position where the thickness deviation exists in the blank to be cut. When the cutting path does not have both the upper surface curvature position and the lower surface curvature position, it means that the real-time cutting thickness is inconsistent with the reference blank thickness. In this case, the upper surface curvature position or the lower surface curvature position that exists alone will be used as the thickness deviation position.
[0045] Step S203: taking the arc position where the upper surface arc position and the lower surface arc position exist simultaneously as the marking position.
[0046] The marking position refers to the position marked on the surface of the blank. When the cutting path has both the upper surface arc position and the lower surface arc position, it means that the real-time cutting thickness is consistent with the reference blank thickness. The arc position where both the upper surface arc position and the lower surface arc position exist at the same time is used as the marking position.
[0047] Step S204: determining the real-time arc thickness according to the marking position and the real-time cutting thickness.
[0048] Real-time arc thickness refers to the real-time detection of the thickness of the arc on the surface of the blank. The thickness corresponding to the marked position is retrieved from the real-time cutting thickness as the real-time arc thickness, which facilitates subsequent analysis.
[0049] Step S205: Determine the thickness deviation position according to the consistency between the real-time arc thickness and the reference blank thickness and the arc position.
[0050] The thickness deviation position refers to the position on the blank surface where the thickness deviation exists. The thickness deviation position is determined by comparing the consistency between the real-time arc thickness and the reference blank thickness and the arc position, which facilitates subsequent analysis.
[0051] Step S206: Calculate the difference between the real-time arc thickness and the reference blank thickness as the thickness deviation value, and use the thickness deviation value and the thickness deviation position as thickness deviation information.
[0052] The thickness deviation value refers to the deviation between the real-time arc thickness and the reference blank thickness. The difference between the real-time arc thickness and the reference blank thickness is calculated as the thickness deviation value. The thickness deviation information is formed by combining the thickness deviation value with the parameters corresponding to the thickness deviation position.
[0053] In step S205 shown above, in order to further ensure the rationality of the specific steps of determining the thickness deviation position based on the consistency between the real-time arc thickness and the reference blank thickness and the arc position, it is necessary to perform further separate analysis and calculation on the specific steps of determining the thickness deviation position based on the consistency between the real-time arc thickness and the reference blank thickness and the arc position, which is specifically explained in detail through the steps shown below.
[0054] Specific steps to determine the thickness deviation position based on the consistency between the real-time arc thickness and the reference blank thickness and the arc position: Step S300: Determine whether the arc directions of the upper surface arc position and the lower surface arc position are consistent and the arc angles of the upper surface arc position and the lower surface arc position are inconsistent. If yes, jump to step S301. If no, jump to step S302.
[0055] By judging whether the curvature directions of the upper surface curvature position and the lower surface curvature position are consistent and the curvatures of the upper surface curvature position and the lower surface curvature position are inconsistent, it is possible to judge whether the real-time curvature thickness is consistent with the reference blank thickness.
[0056] Step S301: The marked position where the real-time arc thickness is inconsistent with the reference blank thickness is taken as the thickness deviation position.
[0057] When the arc direction of the upper surface arc position is consistent with that of the lower surface arc position and the arc angle of the upper surface arc position is consistent, when the arc direction of the upper surface arc position is inconsistent with that of the lower surface arc position and the arc angle of the upper surface arc position is consistent, when the arc direction of the upper surface arc position is inconsistent with that of the lower surface arc position and the arc angle of the upper surface arc position is inconsistent, it indicates that there is an inconsistency between the real-time arc thickness and the reference blank thickness, and the mark position where the real-time arc thickness is inconsistent with the reference blank thickness is used as the thickness deviation position.
[0058] Step S302: Determine the arc distance according to the marking position and the cutting path.
[0059] The arc distance refers to the distance of the arc on the cutting path. When the arc directions of the upper surface arc position and the lower surface arc position are not consistent and the arc angles of the upper surface arc position and the lower surface arc position are inconsistent, it means that there is a change in the thickness corresponding to the upper surface arc position and the lower surface arc position. The arc corresponding to the marked position is selected through the cutting path, and the straight-line coordinate distance is calculated through the position point between the cutting path and the arc, and the straight-line coordinate distance is used as the arc distance.
[0060] Step S303: Determine, according to the arc distance and the real-time arc thickness, the distance at which the real-time arc thickness is consistent with the reference thickness value as the arc reference distance.
[0061] The arc reference distance refers to the distance at the marked position where the real-time arc thickness is consistent with the reference thickness value. The arc distance is determined by retrieving the thicknesses corresponding to the arc distance from the real-time arc thickness and selecting the distance corresponding to the thickness consistent with the reference thickness value from the various thicknesses as the arc reference distance.
[0062] Step S304: Calculate the difference between the arc distance and the arc reference distance and use it as the arc deviation distance.
[0063] The arc deviation distance refers to the distance at which the real-time arc thickness and the reference thickness value are consistent within the marked position. The difference between the arc distance and the arc reference distance is calculated and used as the arc deviation distance.
[0064] Step S305: determining the arc deviation position according to the arc deviation distance, and using the arc deviation position as the thickness deviation position.
[0065] The arc deviation position refers to the position corresponding to the arc deviation distance in the marked position. The position corresponding to the arc deviation distance is selected from the marked position as the arc deviation position, and the arc deviation position is used as the thickness deviation position.
[0066] In step S200 shown above, in order to further ensure the rationality of the specific steps after determining the arc position on the cutting path, it is necessary to further analyze and calculate the specific steps after determining the arc position on the cutting path. Figure 2 The steps shown are explained in detail.
[0067] Reference Figure 2 , also includes the specific steps after determining the cutting path according to the product shape: Step S400: Acquire image detection information of the blank and roller specifications of the roller.
[0068] Image detection information refers to the image information corresponding to the blank to be cut, and the image detection device preset on the laser cutting equipment takes the image corresponding to the blank in real time as the image detection information. Roller specifications refer to the size parameter specifications corresponding to the roller used to adhere to dust, and the roller specifications are determined by manually inputting the roller size specifications.
[0069] Step S401: forming a reference blank image according to blank specifications.
[0070] The reference blank image refers to a reference image corresponding to the blank to be cut, and is formed by combining parameters such as the size, shape, and color of the blank from the blank specifications.
[0071] Step S402: selecting dust positions on the cutting path according to the comparison between the image detection information and the reference blank image.
[0072] The dust position refers to the position where dust exists on the blank to be cut. The color characteristics of the image detection information are compared with the reference blank image to obtain the positions where dust exists, and the positions where the cutting path passes through the dust are selected as the dust positions.
[0073] Step S403: Retrieve the reference roller width of the roller based on the roller specifications.
[0074] The reference roller width refers to the reference width corresponding to the roller used for adhering dust, and the axial length of the roller is taken from the roller specifications as the reference roller width.
[0075] Step S404: Determine the roller center position of the roller according to the reference roller width.
[0076] The center position of the roller refers to the center position of the roller corresponding to the dust adhering roller. The value of half the width of the reference roller is calculated, and the position in the axial direction of the roller is determined by the calculated value as the center position of the roller.
[0077] Step S405: determining the shortest adhesion path of the roller according to the cutting path, the reference roller width and the center position of the roller.
[0078] The shortest adhesion path refers to the shortest path that the dust on the roller adhesion cutting path runs. The center position of the roller is used as the center of the path where the roller runs, the reference roller width is used as the range of the roller adhesion dust, and then the dust distribution on the cutting path is combined to determine the shortest adhesion path.
[0079] Step S406: The shortest adhesion path is used as the roller control information and output to a preset roller device to adhere the dust.
[0080] The roller device refers to a device corresponding to a roller installed to adhere dust. The parameters corresponding to the shortest adhesion path are used as roller control information and output to a preset roller device to adhere dust. In this way, the dust on the cutting path can be adhered when the roller runs the shortest path, thereby reducing energy consumption.
[0081] exist Figure 2 In step S405 shown, in order to further ensure the rationality of the method for determining the shortest adhesion path, it is necessary to perform further separate analysis and calculation on the method for determining the shortest adhesion path, which is specifically described in detail through the following steps.
[0082] Method for determining the shortest adhesion path: Step S500: Determine the drum area according to the drum specifications.
[0083] The roller area refers to the area of the roller used to adhere to dust. The diameter and width of the roller are obtained from the roller specifications, and the product of the width and the diameter is calculated as the roller area.
[0084] Step S501: Determine the product area based on the product shape.
[0085] The product area refers to the area of the product obtained after the blank is cut. The parameter obtained by combining the product shape and the dimensional parameters corresponding to the product shape is used as the product area.
[0086] Step S502: Determine whether the product area is smaller than the drum area. If yes, jump to step S503. If no, jump to step S505.
[0087] By judging whether the product area is smaller than the drum area, it is possible to judge whether the drum can directly complete the adhesion of dust.
[0088] Step S503: Determine the maximum product width of the product according to the product shape.
[0089] The maximum product width refers to the maximum horizontal distance corresponding to each relative side of the product shape. When the product area is smaller than the roller area, it means that the roller can directly complete the adhesion of dust. The position points of each relative side are retrieved according to the product shape and the distance between the relative position points is calculated. Then, the distance with the largest value is selected from each distance as the maximum product width.
[0090] Step S504: determining the rolling path of the roller device as the shortest adhesion path according to the maximum product width, the reference roller width and the roller center position.
[0091] The maximum product width is parallel to the reference roller width, and the center of the maximum product width corresponds to the center of the roller and overlaps, and then the dust on the cutting path is adhered to form a straight path as the shortest adhesion path. For example, when a regular hexagon needs to be cut, the maximum width of the regular hexagon is calculated, and the roller is parallel to the position of the maximum width, and then the center of the maximum width is determined to correspond to the center of the roller, so that the roller can adhere to the edge of the regular hexagon when rolling.
[0092] Step S505: selecting an initial adhesion path according to the dust position, and using the unselected paths in the cutting path as other paths.
[0093] The initial adhesion path refers to the path that the roller initially adheres to the dust on the blank. Other paths refer to other paths on the cutting path that do not adhere to dust after the roller runs along the initial adhesion path. When the product area is not smaller than the roller area, it means that it is not easy for the roller to directly complete the adhesion of dust. In this case, the outermost path is retrieved from the cutting path, and the path with dust positions is selected as the initial adhesion path, and other paths with dust positions are selected as other paths.
[0094] Step S506: Calculate the horizontal distance between the initial adhesion path and other paths as the horizontal distance.
[0095] The horizontal distance refers to the horizontal distance between the initial adhesion path and other paths. The straight-line distance between the initial adhesion path and other paths is calculated as the horizontal distance by passing through the corresponding position points of the initial adhesion path and other paths. When there are other paths that do not conflict with the initial adhesion path and are perpendicular or intersecting with the initial adhesion path, the endpoint of the other path close to the initial adhesion path is taken as the position point.
[0096] Step S507: Determine whether the horizontal distance is less than the reference roller width. If not, jump to step S508. If yes, jump to step S509.
[0097] By judging whether the horizontal distance is less than the reference roller width, it is judged whether the roller can adhere to other paths when running the initial adhesion path.
[0098] Step S508: taking the cutting path as the shortest adhesion path.
[0099] When the horizontal distance is not less than the reference roller width, it means that the roller cannot adhere to other paths while running the initial adhesion path, and the cutting path continues to be used as the shortest adhesion path.
[0100] Step S509: determining the remaining path according to the initial adhesion path, the reference roller width and the cutting path.
[0101] The remaining path refers to the remaining path on the cutting path that needs to adhere to the dust. When the horizontal distance is less than the reference roller width, it means that the roller can adhere to other paths when running the initial adhesion path. The range of the roller adhering to other paths is determined by the initial adhesion path and the reference roller width, and the position points corresponding to the range of adhering to other paths are determined, and the position points and the paths on other paths that have not been adhered are taken as the remaining paths.
[0102] Step S510: determining a remaining adhesion path according to the remaining path and the reference roller width, and taking the initial adhesion path and the remaining adhesion path as the shortest adhesion path.
[0103] The remaining adhesion path refers to the path on which the roller adheres to the dust. The remaining path is achieved by placing one side of the base roller width of the roller on the remaining path, and the center position of the roller is located within the shape corresponding to the cut of the remaining path. The remaining path is then used as the path moved by the center position of the roller and as the remaining adhesion path.
[0104] For example, when the product shape is a right-angled trapezoid, the side with more dust is used as the initial adhesion path and runs corresponding to the center position of the roller. If there is a swing roller adhesion on the other sides of the right-angled trapezoid, the other sides will run from the adhesion point to the remaining unadhered sides, and the side of the roller will be located on the unadhered side of the right-angled trapezoid, and the center position of the roller will be located inside the right-angled trapezoid, so that the other sides can also be adhered.
[0105] In step S505 shown above, in order to further ensure the rationality of the specific step of selecting the initial adhesion path according to the dust position, it is necessary to perform further separate analysis and calculation on the specific step of selecting the initial adhesion path according to the dust position, which is specifically described in detail through the following steps.
[0106] Specific steps for selecting the initial adhesion path based on the dust position: Step S600: selecting a side path of the product side based on the cutting path and the product shape.
[0107] The side path refers to the path located on the side of the product shape, and the path of the product side corresponding to the product shape is retrieved from the cutting path as the side path.
[0108] Step S601: Overlap the side path with the roller center position of the roller, and determine the roller adhesion range according to the reference roller width and the side path.
[0109] The roller adhesion range refers to the range within which the roller can adhere on the side path. The roller adhesion range is obtained by aligning and overlapping the center position of the roller with the side path, and taking the range within which the roller can adhere while running along the side path through the reference roller width.
[0110] Step S602: Determine the amount of dust at each dust position according to the roller adhesion range and the dust position.
[0111] The number of dust particles refers to the number of dust positions within the roller adhesion range, and the number of dust positions within the roller adhesion range corresponding to each side path is used as the number of dust particles.
[0112] Step S603: based on the amount of dust, a side path with the largest amount of dust is selected as an initial adhesion path.
[0113] When the amounts of dust on each cutting path are different, the side path with the largest amount of dust is used as the initial adhesion path, so that the dust on the cutting path can be adhered more quickly.
[0114] Step S604: If and only if the quantities of the various dust particles are the same, determine the inclined path according to the cutting path and the reference cutting method preset by the laser cutting device.
[0115] The reference cutting method refers to the method of mobile cutting performed by the laser cutting equipment, which is formed by the operator's presetting and storage. The inclined path refers to the cutting path that is not a straight cutting path in the reference cutting method. When the number of dust particles is the same, the cutting path is selected as the inclined path in the program parameters corresponding to the reference cutting method of the laser cutting equipment through the cutting path.
[0116] For example, when there are oblique lines in the product shape, it is necessary to run the X-axis and Y-axis programs simultaneously in the laser cutting device, and the path corresponding to the program is used as the inclined path.
[0117] Step S605: Determine, according to the inclined path, a distance between two end points of the inclined path parallel to the reference roller width as a maximum adhesion distance.
[0118] The maximum adhesion distance refers to the maximum distance that the inclined path can adhere to dust. The position points at both ends of the inclined path are retrieved from the inclined path, and the horizontal and vertical distances between the position points at the two ends are calculated as the maximum adhesion distance.
[0119] Step S606: Determine whether the maximum adhesion distance is less than the reference roller width. If yes, jump to step S607. If no, jump to step S608.
[0120] By judging whether the maximum adhesion distance is less than the reference roller width, it is judged whether the roller can adhere to the dust on the inclined path while running in the vertical or horizontal direction.
[0121] Step S607: determining an initial adhesion path according to the position of the center of the maximum adhesion distance.
[0122] When the maximum adhesion distance is less than the reference roller width, it means that the roller can adhere to the dust on the inclined path while running in the vertical or horizontal direction. Then the position of the center corresponding to the maximum adhesion distance is made corresponding to the center position of the roller, and the path perpendicular to the maximum adhesion distance is used as the initial adhesion path.
[0123] Step S608: taking the inclined path as the initial adhesion path.
[0124] When the maximum adhesion distance is not less than the reference roller width, it means that the roller cannot adhere to the dust on the inclined path while running in the vertical or horizontal direction, and the inclined path is used as the initial adhesion path.
[0125] exist Figure 2 In step S406 shown in the figure, in order to further ensure the rationality of the specific steps after taking the shortest adhesion path as the roller control information, it is necessary to further analyze and calculate the specific steps after taking the shortest adhesion path as the roller control information. Figure 3 The steps shown are explained in detail.
[0126] Reference Figure 3 , and also includes the specific steps after the shortest adhesion path is used as the roller control information: Step S700: acquiring a real-time drum image of the drum, and forming a virtual drum model based on the real-time drum image.
[0127] The real-time drum image refers to the image corresponding to the real-time detection of the drum when dust is adhered to it. The image detection device preset on the laser cutting equipment takes the image of the drum when dust is adhered to the blank in real time as the real-time drum image. The virtual drum model refers to the virtual model corresponding to the real-time detection of the drum when dust is adhered to it. The model formed by inputting the real-time drum image into the modeling component preset on the laser cutting equipment is used as the virtual drum model.
[0128] Step S701: determining the dust percentage according to the virtual drum model, the preset drum color and the drum center position.
[0129] The dust ratio refers to the ratio of dust on the left and right sides of the center of the drum. The area of the color corresponding to the dust and the area of the cylindrical side corresponding to the drum color are retrieved from the virtual drum model, and the quotient of the area of the color corresponding to the dust and the area of the cylindrical side corresponding to the drum is calculated and used as the dust ratio. The drum color refers to the color of the cylindrical side corresponding to the drum for dust adhesion, which is set and stored in advance by the operator.
[0130] Step S702: According to the dust percentage, the virtual drum model and the center position of the drum, the left and right sides of the drum with the smallest dust percentage are determined as the most adhered positions.
[0131] The most adhered position refers to the position on the roller where the most dust can adhere. The area of the cylindrical side of the roller is equally divided based on the center position of the roller, and the position with the smallest dust ratio on the left and right sides of the roller on the virtual roller model is taken as the most adhered position.
[0132] Step S703: determining the dust distribution position according to the shortest adhesion path and the dust position.
[0133] The dust distribution position refers to the position where the dust is distributed left and right with the shortest adhesion path as the center, by taking the shortest adhesion path as the center and selecting the dust positions on both sides of the shortest adhesion path from the dust positions as the dust distribution position.
[0134] Step S704: generating roller adhesion information based on the correspondence between the most adhesion positions and the dust distribution positions.
[0135] When the maximum adhesion position and the dust distribution position are in relative positions, the roller is controlled to rotate 180 degrees so that the maximum adhesion position and the dust distribution position can overlap and correspond to each other, and the angle parameter rotated by making the maximum adhesion position and the dust distribution position on the roller correspond to each other is used as the roller adhesion information.
[0136] Step S705: adding the roller adhesion information to the roller control information to form new roller control information, and outputting the roller control information to the roller device.
[0137] By adding the parameters corresponding to the roller adhesion information to the roller control information to form new roller control information and outputting it to the roller device, it is possible to achieve a correspondence between the maximum adhesion positions and the dust distribution positions, thereby improving the efficiency of the roller in adhering dust.
[0138] exist Figure 3 In the step S705 shown, in order to further ensure the rationality of the specific steps after adding the roller adhesion information to the roller control information to form the new roller control information, it is necessary to perform further separate analysis and calculation on the specific steps after adding the roller adhesion information to the roller control information to form the new roller control information, which is specifically explained in detail through the steps shown below.
[0139] The specific steps are also included after adding the roller adhesion information to the roller control information to form new roller control information: Step S800: Determine whether there is dust in the arc position based on the dust position. If not, jump to step S801. If yes, jump to step S802 The dust position is used to determine whether dust exists within the arc position, thereby determining whether the roller control information needs to be adjusted.
[0140] Step S801: Continue to execute step S705.
[0141] When there is no dust in the arc position, it means that there is no need to adjust the roller control information, and the process continues to jump to step S705.
[0142] Step S802: Determine the arc top position and arc type according to the real-time cutting thickness, the reference blank thickness and the arc position, and take the arc type when the real-time cutting thickness is less than the reference blank thickness as a concave arc, and take the arc type when the real-time cutting thickness is greater than the reference blank thickness as a convex arc.
[0143] The arc top position refers to the position of the arc top corresponding to the arc on the surface of the blank. The arc type refers to the arc type of the arc position on the surface of the blank, and the arc type includes a concave arc type and a convex arc type. When there is dust in the arc position, it means that the roller control information needs to be adjusted, and the arc type is determined by comparing the real-time cutting thickness with the reference blank thickness. The arc type with a real-time cutting thickness less than the reference blank thickness is taken as a concave arc, and the arc type with a real-time cutting thickness greater than the reference blank thickness is taken as a convex arc. The thickness detection device detects the position of the maximum real-time cutting thickness or the minimum real-time cutting thickness corresponding to the arc position as the arc top position.
[0144] Step S803: Determine whether the cutting path is located at the top of the convex arc. If yes, jump to step S804. If no, jump to step S805.
[0145] By judging whether the cutting path is located at the top of the convex arc, it is judged whether the shortest adhesion path in the roller control information needs to be replaced.
[0146] Step S804: Continue to jump to execute step S705.
[0147] When the cutting path is located at the top of the convex arc, it means that the shortest adhesion path in the roller control information does not need to be replaced, and the process continues to jump to step S705.
[0148] Step S805: Determine the convex arc path position according to the arc top position and the cutting path.
[0149] The convex arc path position refers to the path position where the cutting path is located corresponding to the convex arc. When the cutting path is not located at the arc top position of the convex arc, it means that the shortest adhesion path in the roller control information needs to be replaced. The arc top position of the convex arc is taken as the center, and the positions corresponding to the cutting paths on the left and right sides of the arc top position are taken as the convex arc path positions.
[0150] Step S806: Based on the center position of the roller, a convex arc path position is selected on the opposite side of the arc top position as the convex arc roller adhesion position.
[0151] The convex arc roller adhesion position refers to the position corresponding to the dust at the convex arc position that the roller adheres to, and the side based on the center position of the roller and opposite to the convex arc path position is selected from the roller as the convex arc roller adhesion position. For example, when the cutting path is located on the left side of the convex arc, it is necessary to select the right side position of the roller path forward direction, so as to facilitate the adhesion of the dust on the left side of the convex arc.
[0152] Step S807: determining and adjusting the adhesion path according to the adhesion position of the convex arc roller and the shortest adhesion path.
[0153] The adjusted adhesion path refers to the path of the dust adhering to the roller after adjustment, and a new path is formed as the adjusted adhesion path by adding the running path corresponding to the adhesion position of the convex arc roller to the shortest adhesion path.
[0154] Step S808: replacing the shortest adhesion path in the roller control information with the adjusted adhesion path to form new roller control information and output it to the roller device.
[0155] By replacing the corresponding parameters of the shortest adhesion path in the roller control information by adjusting the adhesion path to form new roller control information and outputting it to the roller device, adhesion can be performed on the convex arc position where dust exists on the cutting path.
[0156] In step S808 shown above, in order to further ensure the rationality of the specific steps that also include the step before determining whether the cutting path is located at the top position of the convex arc, it is necessary to perform further separate analysis and calculation on the specific steps that also include the step before determining whether the cutting path is located at the top position of the convex arc, which is explained in detail through the steps shown below.
[0157] The invention also includes the following specific steps before determining whether the cutting path is located at the top of the convex arc: Step S900: Obtaining a reference deviation area between the arc position and the blank surface.
[0158] The reference deviation area refers to the area where there is a deviation between the blank surface and the concave arc top position. The various deviation parameters between the concave arc position and the blank surface are detected by an infrared device in the thickness detection device and combined to form the reference deviation area.
[0159] Step S901: based on the dust percentage, selecting the side of the drum with the least dust percentage as the inclined adhesion position.
[0160] The inclined adhesion position refers to the position where dust adheres to the roller after it is tilted, and the side with the least dust ratio is selected from the roller as the inclined adhesion position.
[0161] Step S902: based on the cutting path, the position of the path within the concave arc position is retrieved as the concave arc path position.
[0162] The concave arc path position refers to the path position where the cutting path is located corresponding to the concave arc. The arc top position of the concave arc is taken as the center, and the positions corresponding to the cutting paths on the left and right sides of the arc top position are taken as the concave arc path position.
[0163] Step S903: determining the tilt angle according to the reference deviation area and the concave arc path position.
[0164] The inclination angle refers to the angle at which the roller needs to be tilted. The position point between the hypotenuse and the shortest side is determined by the concave arc path position, and the deviation distance from the concave arc path position vertically to the blank surface is selected from the reference deviation area as the shortest right angle side. The distance between the concave arc path position and the position point corresponding to the arc on the blank surface is taken as the hypotenuse, and the distance from the position point where the arc appears on the blank surface to the concave arc path position horizontally is taken as the other right angle side of the right angle. The angle parameter obtained by combining the shortest right angle side, the hypotenuse and the other right angle side of the right angle is used as the inclination angle.
[0165] Step S904: determining an initial inclined path according to the center position of the drum, the inclined adhesion position and the shortest adhesion path.
[0166] The initial tilt path refers to the initial path when the roller is tilted, and the tilted adhesion position is tilted and adhered in the shortest adhesion path, and the path corresponding to the operation of the center position of the roller is used as the initial tilt path.
[0167] Step S905: Determine whether the cutting path is located at the top of the concave arc.
[0168] By judging whether the cutting path is located at the top of the concave arc, the angle adjustment of the roller can be known.
[0169] Step S906: If so, adding the initial tilt path and tilt angle to the roller control information to form new roller control information.
[0170] When the cutting path is located at the top of the concave arc, it means that the roller needs to be tilted to be able to adhere to the dust at the top of the arc, and the parameters corresponding to the initial tilt path and the tilt angle are added to the roller control information to form new roller control information.
[0171] Step S907: If not, determine the horizontal rotation angle of the drum according to the center position of the drum, the inclined adhesion position and the concave arc path position.
[0172] The horizontal rotation angle refers to the angle at which the roller rotates to the left and right sides. When the cutting path is not located at the top of the concave arc, it means that the roller needs to be tilted to the path inside the top of the arc for adhesion. The roller is rotated around the center position, and the angle corresponding to the inclined adhesion position and the concave arc path position is used as the horizontal rotation angle.
[0173] For example, if the tilted adhesive position and the concave arc path position are on the same side, the horizontal rotation angle is 0 degrees, and if the tilted adhesive position and the concave arc path position are on the opposite side, the horizontal rotation angle is 180 degrees. Step S908: determining to change the adhesion path according to the inclined adhesion position and the shortest adhesion path.
[0174] Changing the adhesion path refers to changing the path of the roller to adhere to dust, by adding the running path corresponding to the inclined adhesion position to the shortest adhesion path to form a new path as the changed adhesion path.
[0175] Step S909: The shortest adhesion path in the roller control information is replaced by the changed adhesion path and the tilt angle and the horizontal rotation angle are added to form new roller control information and output it to the roller device.
[0176] By replacing the corresponding parameters of the shortest adhesion path in the roller control information by changing the adhesion path, and adding the parameters corresponding to the tilt angle and the horizontal rotation angle to the roller control information to form new roller control information and output it to the roller device, the concave dust can be adhered by the roller.
[0177] Based on the same inventive concept, an embodiment of the present invention provides a cutting adjustment system for a laser cutting machine, comprising: The acquisition module is used to obtain blank specifications, product shape, real-time blank thickness, image detection information, roller specifications, real-time roller image and reference deviation area.
[0178] The memory is used to store a program of a cutting adjustment method of a laser cutting machine.
[0179] The program in the processor memory can be loaded and executed by the processor to implement a cutting adjustment method for a laser cutting machine.
[0180] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.
[0181] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A cutting adjustment method for a laser cutting machine, characterized in that: include: Obtain the specifications of the blank to be cut, the shape of the product obtained after cutting, and the real-time blank thickness; Retrieve the reference blank thickness based on the blank specifications; Matching a reference power from a preset laser database based on the reference blank thickness; Determine the cutting path according to the product shape; Determine the real-time cutting thickness according to the real-time blank thickness and cutting path; Determine thickness deviation information based on the comparison between the reference blank thickness and the real-time cutting thickness; Matching the adjustment power from the laser database based on the thickness deviation information and adjusting the reference power to determine the changed power; The thickness deviation information, power change and cutting path are used as laser control information and output to a preset laser cutting device to cut the blank.
2. The cutting adjustment method of a laser cutting machine according to claim 1, characterized in that: Method for determining thickness deviation information: Determine the arc position on the cutting path according to the real-time cutting thickness, and use the arc position of the upper surface of the blank as the upper surface arc position, and the arc position of the lower surface of the blank as the lower surface arc position; Determine whether the same vertical arc position on the cutting path has both an upper surface arc position and a lower surface arc position; If it does not exist, the upper surface arc position or the lower surface arc position is used as the thickness deviation position; If it exists, the arc position where the arc position of the upper surface and the arc position of the lower surface exist simultaneously is taken as the mark position; Determine the real-time arc thickness according to the marking position and the real-time cutting thickness; Determine the thickness deviation position according to the consistency between the real-time arc thickness and the reference blank thickness and the arc position; The difference between the real-time arc thickness and the reference blank thickness is calculated as the thickness deviation value, and the thickness deviation value and the thickness deviation position are used as thickness deviation information.
3. The cutting adjustment method of a laser cutting machine according to claim 2, characterized in that: Specific steps to determine the thickness deviation position based on the consistency between the real-time arc thickness and the reference blank thickness and the arc position: Determine whether the arc directions of the upper surface arc position and the lower surface arc position are consistent and the arc angles of the upper surface arc position and the lower surface arc position are inconsistent at the same time; If both conditions are not met, the marked position where the real-time arc thickness is inconsistent with the reference blank thickness is taken as the thickness deviation position; If both conditions are met, the arc distance is determined based on the marking position and the cutting path; According to the arc distance and the real-time arc thickness, the distance at which the real-time arc thickness is consistent with the reference thickness value is determined as the arc reference distance; The difference between the arc distance and the arc reference distance is calculated and used as the arc deviation distance; The arc deviation position is determined according to the arc deviation distance, and the arc deviation position is used as the thickness deviation position.
4. The cutting adjustment method of a laser cutting machine according to claim 2, characterized in that: Also included are the specific steps that follow the determination of the arc position on the cutting path: Obtain image detection information of the blank and roller specifications of the roller; Forming a reference blank image according to blank specifications; Select the dust position on the cutting path according to the comparison between the image detection information and the reference blank image; Retrieve the base roller width of the roller based on the roller specifications; Determine the roller center position of the roller according to the reference roller width; Determine the shortest adhesion path of the roller according to the cutting path, the reference roller width and the center position of the roller; The shortest adhesion path is used as roller control information and output to a preset roller device to adhere the dust.
5. The cutting adjustment method of a laser cutting machine according to claim 4, characterized in that: Method for determining the shortest adhesion path: Determine the roller area according to the roller specifications; Determine product area based on product shape; Determine whether the product area is smaller than the drum area; If it is less than, the maximum product width of the product is determined according to the product shape; Determine the rolling path of the roller device as the shortest adhesion path according to the maximum product width, the reference roller width and the center position of the roller; If it is not less than, the initial adhesion path is selected according to the dust position, and the unselected paths in the cutting path are used as other paths; Calculate the horizontal distance between the initial adhesion path and other paths as the horizontal distance; Determine whether the horizontal distance is less than the reference roller width; If it is not less than, the cutting path is taken as the shortest adhesion path; If it is less than, the remaining path is determined based on the initial adhesion path, the reference roller width, and the cutting path; The remaining adhesion path is determined according to the remaining path and the reference roller width, and the initial adhesion path and the remaining adhesion path are taken as the shortest adhesion path.
6. The cutting adjustment method of a laser cutting machine according to claim 5, characterized in that: Specific steps for selecting the initial adhesion path based on the dust position: Select the side path of the product side based on the cutting path and product shape; Overlap the side path with the roller center position of the roller, and determine the roller adhesion range based on the reference roller width and the side path; Determine the amount of dust at each dust location based on the roller adhesion range and dust location; Based on the amount of dust, the side path with the largest amount of dust is selected as the initial adhesion path; If and only if the number of each dust is the same, the inclined path is determined according to the cutting path and the reference cutting method preset by the laser cutting device; According to the inclined path, the distance between the two end points of the inclined path parallel to the width of the reference roller is determined as the maximum adhesion distance; Determine whether the maximum adhesion distance is less than the reference roller width; If it is less than , the initial adhesion path is determined according to the position of the center of the maximum adhesion distance; If it is not less than, the inclined path is taken as the initial adhesion path.
7. The cutting adjustment method of a laser cutting machine according to claim 4, characterized in that: The specific steps after taking the shortest adhesion path as the roller control information are also included: Acquire a real-time drum image of the drum, and form a virtual drum model based on the real-time drum image; Determine the dust percentage based on the virtual roller model, the preset roller color, and the center position of the roller; According to the dust percentage, the virtual roller model and the center position of the roller, the side with the smallest dust percentage on the left and right sides of the roller is determined as the most adhered position; Determine the dust distribution location based on the shortest adhesion path and the dust location; Based on the correspondence between the most adhered position and the dust distribution position, roller adhesion information is formed; The roller adhesion information is added to the roller control information to form new roller control information, and the roller control information is output to the roller device.
8. The cutting adjustment method of a laser cutting machine according to claim 7, characterized in that: The specific steps are also included after adding the roller adhesion information to the roller control information to form new roller control information: Determine whether there is dust in the arc position based on the dust position; If it does not exist, continue to output the roller control information to the roller device; If it exists, the arc top position and arc type are determined according to the real-time cutting thickness, the reference blank thickness and the arc position, and the arc type when the real-time cutting thickness is less than the reference blank thickness is used as a concave arc, and the arc type when the real-time cutting thickness is greater than the reference blank thickness is used as a convex arc; Determine whether the cutting path is located at the top of the convex arc; If it is, continue to output the roller control information; If it is not located, the convex arc path position is determined according to the arc top position and the cutting path; Based on the center position of the roller, the convex arc path position is selected at the opposite side of the arc top position as the convex arc roller adhesion position; Determine and adjust the adhesion path according to the adhesion position of the convex arc roller and the shortest adhesion path; The shortest adhesion path in the roller control information is replaced by the adjusted adhesion path to form new roller control information and output it to the roller device.
9. The cutting adjustment method of a laser cutting machine according to claim 8, characterized in that: The invention also includes the following specific steps before determining whether the cutting path is located at the top of the convex arc: Obtaining the reference deviation area between the arc position and the blank surface; Based on the dust percentage, the side of the roller with the least dust percentage is selected as the inclined adhesion position; Based on the cutting path, the position of the path in the concave arc position is retrieved as the concave arc path position; Determine the tilt angle based on the reference deviation area and the concave arc path position; Determine the initial tilt path according to the center position of the roller, the tilted adhesion position and the shortest adhesion path; Determine whether the concave arc path position is located at the arc top position of the concave arc; If it is located, the initial tilt path and tilt angle are added to the roller control information to form new roller control information; If it is not located, the horizontal rotation angle of the roller is determined according to the center position of the roller, the inclined adhesion position and the concave arc path position; Determine the change of the adhesion path according to the inclined adhesion position and the shortest adhesion path; The shortest adhesion path in the roller control information is replaced by changing the adhesion path and the tilt angle and the horizontal rotation angle are added to form new roller control information and output it to the roller device.
10. A cutting adjustment system for a laser cutting machine, characterized in that: include: An acquisition module is used to obtain blank specifications, product shape, real-time blank thickness, image detection information, roller specifications, real-time roller image, and reference deviation area; A memory for storing a program of a cutting adjustment method for a laser cutting machine according to any one of claims 1 to 9; The program in the processor memory can be loaded and executed by the processor to implement a cutting adjustment method for a laser cutting machine as described in any one of claims 1 to 9.
Citation Information
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