CN114012247A - Method and device for avoiding corner overburning slag adhering defect based on sharp corner process and arc process, processor and storage medium thereof - Google Patents
Method and device for avoiding corner overburning slag adhering defect based on sharp corner process and arc process, processor and storage medium thereof Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 205
- 230000008569 process Effects 0.000 title claims abstract description 161
- 230000007547 defect Effects 0.000 title claims abstract description 38
- 239000002893 slag Substances 0.000 title claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims abstract description 112
- 238000003698 laser cutting Methods 0.000 claims abstract description 26
- 238000004590 computer program Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 3
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- 239000000463 material Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0626—Energy control of the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The invention relates to a method for avoiding the defects of corner overburning and slag adhering based on a sharp angle process and an arc process in a numerical control system, which comprises the following steps: drawing a cutting graph to generate a cutter path; calculating the sharp angle of each inflection point, and inserting a sharp angle process instruction; calculating the radius length of each section of circular arc, and inserting an instruction of a circular arc process; controlling the laser cutting head to move according to the cutting motion track to start cutting; starting a sharp angle process, and emitting light according to the sharp angle process when the sharp angle of the corner and the distance in front of the corner meet the conditions; starting the arc process, and emitting light according to the arc process when the arc radius and the arc starting point position meet the conditions. By adopting the method, the device, the processor and the computer-readable storage medium for avoiding the corner overburning slag-adhering defect based on the sharp angle process and the arc process in the numerical control system, the problem that the corner position is easy to overburn slag-adhering due to movement deceleration is avoided, the cutting effect of the corner is improved, and the cutting quality requirement is met.
Description
Technical Field
The invention relates to the field of laser cutting, in particular to the field of high-power laser cutting, and specifically relates to a method, a device, a processor and a computer readable storage medium for avoiding corner overburning and slag adhering defects based on a sharp angle process and an arc process in a numerical control system.
Background
The laser cutting technology is to control the laser generated by the laser cutting head to move along a certain direction, so as to realize the cutting of the plate and produce the required parts.
In the prior art, the requirements on the moving speed of a cutting head and the setting of laser power are very accurate when corners such as acute angles or small arcs are cut, and the processing quality of a workpiece is very easy to influence. Because the position of the corner is special, the speed reduction treatment is needed in the aspect of motion control, and the corner is easy to be burnt and slag is hung when the laser power is overhigh, so that the quality requirement of a workpiece can not be met; when the laser power is set to be lower, the phenomenon of cutting tight at the non-corner part is easy to occur, and the rejection rate of cutting workpieces is extremely high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method, a device, a processor and a computer readable storage medium thereof for avoiding the defects of corner overburning and slag adhering based on a sharp angle process and an arc process in a numerical control system, which have the advantages of low rejection rate, high quality, simple and convenient operation and wide application range.
In order to achieve the purpose, the method, the device, the processor and the computer readable storage medium for avoiding the corner over-burning slag-adhering defect based on the sharp angle process and the arc process in the numerical control system are as follows:
the method for avoiding the corner overburning slag adhering defect based on the sharp angle process and the arc process in the numerical control system is mainly characterized by comprising the following steps of:
(1) drawing a cutting graph to generate a cutter path;
(2) judging whether a sharp angle process or an arc process is prepared, if so, continuing the step (3); otherwise, continuing the step (4);
(3) calculating the sharp angle of each inflection point, inserting a sharp angle process instruction, and continuing the step (5);
(4) calculating the radius length of each section of circular arc, inserting an instruction of the circular arc process, and continuing the step (5);
(5) controlling the laser cutting head to move according to the cutting motion track to start cutting;
(6) judging whether a sharp corner process or an arc process is started, and if the sharp corner process is started, continuing the step (7); otherwise, continuing the step (8);
(7) starting a sharp angle process, controlling a laser cutting head to emit light according to the sharp angle process when the sharp angle of the corner and the front distance of the corner meet the conditions, and controlling the laser cutting head to emit light according to the cutting process after the cutting head exits from the corner motion;
(8) starting the arc process, controlling the laser cutting head to emit light according to the arc process when the arc radius and the arc starting position meet the conditions, and controlling the laser cutting head to emit light according to the cutting process when the cutting head reaches the arc ending position.
Preferably, the step (3) specifically includes the following steps:
(3.1) traversing each point in the graph, for each point P1(x1, y1), determining a first half vector V1 and a second half vector V2 of the sharp corner by its previous point P2(x2, y2) and its next point P3(x3, y3), respectively, according to the type of the point;
(3.2) calculating the sharp angle of each inflection point;
and (3.3) inserting a sharp angle process instruction into the generated tool path, marking the angle theta of the corner where each point is located, and continuing to the step (5).
Preferably, the step (4) specifically includes the following steps:
(4.1) traversing each point P1(x1, y1) in the graph;
(4.2) calculating the radius length of the circular arc through a circle center O1(x4, y 4);
and (4.3) inserting an arc process starting command and an arc process finishing command into the generated tool path, marking the radius R of the arc, and continuing to the step (5).
Preferably, the step (3.2) of calculating the sharp angle of the inflection point includes:
calculating the sharp angle of the inflection point according to the following formula:
θ＝arccos(cosθ)；
wherein V1 is the first half vector of the sharp corner, and V2 is the second half vector of the sharp corner.
Preferably, the angle θ of the corner where each point is located in step (3.3) includes an included angle between a straight line and a straight line, an included angle between a straight line and an arc, an included angle between an arc and a straight line, and an included angle between an arc and an arc.
Preferably, the step (4.2) calculates the radius length of each arc, specifically:
the radius length of each arc is calculated according to the following formula:
the point is P1(x1, y1), and the circle center of the arc is O1(x4, y 4).
Preferably, the step (7) specifically comprises the following steps:
(7.1) judging whether the next corner angle of cutting is smaller than or equal to the set sharp angle, if so, continuing the step (7.2); otherwise, continuing the step (7.1);
(7.2) judging whether the distance between the cutting head and the corner before reaching the corner is equal to the length of the sharp corner, if so, controlling the cutting head to emit light according to the sharp corner process, and executing the preset peak power, cutting frequency and duty ratio of the sharp corner process; otherwise, continuing the step (7.2);
(7.3) judging whether the distance between the cutting head and the corner is equal to the length of the sharp corner after the cutting head reaches the corner, if so, controlling the cutting head to emit light according to the cutting process, recovering the peak power, the cutting frequency and the duty ratio used by the cutting process, and ending the step; otherwise, continue with step (7.3).
Preferably, the step (8) specifically comprises the following steps:
(8.1) judging whether the radius of the lower section of the cut arc is smaller than or equal to the set arc radius, if so, continuing the step (8.2); otherwise, continuing the step (8.1);
(8.2) judging whether the arc starting position is reached, if so, controlling the cutting head to emit light according to an arc process, and executing the peak power, the cutting frequency and the duty ratio of a preset sharp angle process; otherwise, continuing the step (8.2);
(8.3) judging whether the arc end point position is reached, if so, controlling the cutting head to emit light according to the cutting process, recovering the peak power, the cutting frequency and the duty ratio used by the cutting process, and ending the step; otherwise, continue step (8.3).
The device for avoiding the defects of corner overburning and slag adhering based on the sharp angle process and the arc process in the numerical control system is mainly characterized by comprising the following steps of:
a processor configured to execute computer-executable instructions;
and the memory stores one or more computer executable instructions, and when the computer executable instructions are executed by the processor, the steps of the method for avoiding the corner overburning slag adhering defect based on the sharp angle process and the arc process in the numerical control system are realized.
The processor for avoiding the corner over-burning slag-adhering defect based on the sharp angle process and the circular arc process in the numerical control system is mainly characterized in that the processor is configured to execute computer executable instructions, and when the computer executable instructions are executed by the processor, the steps of the method for avoiding the corner over-burning slag-adhering defect based on the sharp angle process and the circular arc process in the numerical control system are realized.
The computer readable storage medium is mainly characterized in that a computer program is stored on the computer readable storage medium, and the computer program can be executed by a processor to realize the steps of the method for avoiding the corner overburning slag-adhering defect based on the sharp angle process and the circular arc process in the numerical control system.
By adopting the method, the device, the processor and the computer readable storage medium for avoiding the corner overburning slag-hanging defect based on the sharp angle process and the arc process in the numerical control system, the cutting method based on the sharp angle process and the arc process can control the peak power, the cutting frequency and the duty ratio of the light emitted by the cutting head when the cutting head moves to the corner, thereby ensuring that the specific parameter value is accurately adjusted when the cutting head passes through the corner, avoiding the overlarge laser power caused by the deceleration of the movement, solving the problem that the corner position is easy to overburning slag-hanging, improving the cutting effect of the corner and meeting the cutting quality requirement.
Drawings
FIG. 1 is a flow chart of a method for avoiding corner overburning slag adhering defects based on a sharp angle process and an arc process in a numerical control system.
FIG. 2 is a schematic diagram of a numerical control system according to an embodiment of the present invention, in which three points are all on a straight line, for implementing a method for avoiding the corner overburning slag-adhering defect based on a sharp angle process and an arc process.
FIG. 3 is a schematic diagram of a front point and a middle point on a straight line and a rear point on an arc in an embodiment of the method for avoiding the corner overburning slag-adhering defect based on the sharp angle process and the arc process in the numerical control system.
FIG. 4 is a schematic diagram of a front point and a middle point on an arc and a rear point on a straight line in the embodiment of the method for avoiding the corner overburning slag-adhering defect based on the sharp angle process and the arc process in the numerical control system.
FIG. 5 is a schematic diagram of three points on an arc in an embodiment of a method for avoiding the corner overburning slag-adhering defect based on a sharp angle process and an arc process in the numerical control system of the present invention.
Detailed Description
In order to more clearly describe the technical contents of the present invention, the following further description is given in conjunction with specific embodiments.
The method for avoiding the corner overburning slag adhering defect based on the sharp angle process and the arc process in the numerical control system comprises the following steps:
(1) drawing a cutting graph to generate a cutter path;
(2) judging whether a sharp angle process or an arc process is prepared, if so, continuing the step (3); otherwise, continuing the step (4);
(3) calculating the sharp angle of each inflection point, inserting a sharp angle process instruction, and continuing the step (5);
(4) calculating the radius length of each section of circular arc, inserting an instruction of the circular arc process, and continuing the step (5);
(5) controlling the laser cutting head to move according to the cutting motion track to start cutting;
(6) judging whether a sharp corner process or an arc process is started, and if the sharp corner process is started, continuing the step (7); otherwise, continuing the step (8);
(7) starting a sharp angle process, controlling a laser cutting head to emit light according to the sharp angle process when the sharp angle of the corner and the front distance of the corner meet the conditions, and controlling the laser cutting head to emit light according to the cutting process after the cutting head exits from the corner motion;
(8) starting the arc process, controlling the laser cutting head to emit light according to the arc process when the arc radius and the arc starting position meet the conditions, and controlling the laser cutting head to emit light according to the cutting process when the cutting head reaches the arc ending position.
As a preferred embodiment of the present invention, the step (3) specifically comprises the following steps:
(3.1) traversing each point in the graph, for each point P1(x1, y1), determining a first half vector V1 and a second half vector V2 of the sharp corner by its previous point P2(x2, y2) and its next point P3(x3, y3), respectively, according to the type of the point;
(3.2) calculating the sharp angle of each inflection point;
and (3.3) inserting a sharp angle process instruction into the generated tool path, marking the angle theta of the corner where each point is located, and continuing to the step (5).
As a preferred embodiment of the present invention, the step (4) specifically comprises the following steps:
(4.1) traversing each point P1(x1, y1) in the graph;
(4.2) calculating the radius length of the circular arc through a circle center O1(x4, y 4);
and (4.3) inserting an arc process starting command and an arc process finishing command into the generated tool path, marking the radius R of the arc, and continuing to the step (5).
As a preferred embodiment of the present invention, the step (3.2) of calculating the sharp angle of the inflection point specifically includes:
calculating the sharp angle of the inflection point according to the following formula:
θ＝arccos(cosθ)；
wherein V1 is the first half vector of the sharp corner, and V2 is the second half vector of the sharp corner.
As a preferred embodiment of the present invention, the angle θ of the corner at each point in step (3.3) includes an included angle between a straight line and a straight line, an included angle between a straight line and an arc, an included angle between an arc and a straight line, and an included angle between an arc and an arc.
As a preferred embodiment of the present invention, the step (4.2) calculates the radius length of each arc, specifically:
the radius length of each arc is calculated according to the following formula:
the point is P1(x1, y1), and the circle center of the arc is O1(x4, y 4).
As a preferred embodiment of the present invention, the step (7) specifically comprises the following steps:
(7.1) judging whether the next corner angle of cutting is smaller than or equal to the set sharp angle, if so, continuing the step (7.2); otherwise, continuing the step (7.1);
(7.2) judging whether the distance between the cutting head and the corner before reaching the corner is equal to the length of the sharp corner, if so, controlling the cutting head to emit light according to the sharp corner process, and executing the preset peak power, cutting frequency and duty ratio of the sharp corner process; otherwise, continuing the step (7.2);
(7.3) judging whether the distance between the cutting head and the corner is equal to the length of the sharp corner after the cutting head reaches the corner, if so, controlling the cutting head to emit light according to the cutting process, recovering the peak power, the cutting frequency and the duty ratio used by the cutting process, and ending the step; otherwise, continue with step (7.3).
As a preferred embodiment of the present invention, the step (8) specifically comprises the following steps:
(8.1) judging whether the radius of the lower section of the cut arc is smaller than or equal to the set arc radius, if so, continuing the step (8.2); otherwise, continuing the step (8.1);
(8.2) judging whether the arc starting position is reached, if so, controlling the cutting head to emit light according to an arc process, and executing the peak power, the cutting frequency and the duty ratio of a preset sharp angle process; otherwise, continuing the step (8.2);
(8.3) judging whether the arc end point position is reached, if so, controlling the cutting head to emit light according to the cutting process, recovering the peak power, the cutting frequency and the duty ratio used by the cutting process, and ending the step; otherwise, continue step (8.3).
The invention discloses a device for avoiding corner overburning slag adhering defects based on a sharp angle process and an arc process in a numerical control system, wherein the device comprises:
a processor configured to execute computer-executable instructions;
and the memory stores one or more computer executable instructions, and when the computer executable instructions are executed by the processor, the steps of the method for avoiding the corner overburning slag adhering defect based on the sharp angle process and the arc process in the numerical control system are realized.
The processor for avoiding the corner overheating slag attachment defect based on the sharp angle process and the circular arc process in the numerical control system is configured to execute computer executable instructions, and when the computer executable instructions are executed by the processor, the steps of the method for avoiding the corner overheating slag attachment defect based on the sharp angle process and the circular arc process in the numerical control system are realized.
The computer readable storage medium of the present invention, wherein a computer program is stored thereon, said computer program being executable by a processor to implement the steps of the above-mentioned method for avoiding corner overburning slag-adhering defects based on the sharp corner process and the arc process in the numerical control system.
The invention aims to provide a cutting method based on a sharp corner process and an arc process, which solves the problem that the corner position is easy to over-fire and slag is adhered and improves the cutting effect of the corner.
According to the method, the instruction of inserting the sharp angle process into the tool path is calculated through the corner angle, the instruction of inserting the arc process into the tool path is calculated through the radius of the arc, and when the laser cutting head is controlled to carry out processing, the peak power, the cutting frequency and the duty ratio of the light emitted by the cutting head are accurately adjusted at the appointed position through the sharp angle process and the arc process, so that the problem that the laser power at the corner position is too high and the slag is burned and adhered due to the fact that the movement is decelerated is solved, and the cutting effect at the corner is improved.
As shown in figure 1, the invention aims to solve the problem of overburning and slag adhering at the corner by setting the peak power, the cutting frequency and the duty ratio at the sharp corner or the small arc to adjust the specific sharp corner or arc, and comprises the following specific steps:
(1) and when the drawn graph to be cut is converted into a cutter path, traversing each point in the graph, and calculating the sharp angle of each inflection point.
Wherein, the first half vector V1 and the second half vector V2 of the sharp corner are determined in the step (1), and the method specifically comprises the following steps:
traversing each point in the graph, for each point P1(x1, y1), determining the first half vector V1 and the second half vector V2 of the sharp corner by its previous point P2(x2, y2) and its next point P3(x3, y3), respectively, according to the type of the point.
If the point P1 is on a straight line, then
If the point P1 is on the arc and the center is O1(x4, y4), the vector V1 is represented by the tangent of the point on the arc, and if the arc is clockwise, V1 is equal to (y4-y1, x1-x4), and if the arc is counterclockwise, V1 is equal to (y1-y4, x4-x 1).
Similarly, if point P3 is on a straight line, it is on
If the point P3 is on the arc and the center is O2(x5, y5), if the arc is clockwise, V2 is equal to (y1-y5, x5-x1), and if the arc is counterclockwise, V2 is equal to (y5-y1, x1-x 5).
Wherein, the step (1) of calculating the corner point angle specifically comprises the following steps:
the angle θ between vector V1 and vector V2 is calculated according to the following equation:
θ＝arccos9cosθ)；
(2) and inserting a sharp angle process instruction into the generated tool path, and marking the angle theta of the corner where each point is positioned, wherein the angle theta comprises an included angle between a straight line and the straight line, an included angle between the straight line and an arc, an included angle between the arc and the straight line and an included angle between the arc and the arc.
(3) When the drawn graph to be cut is converted into a cutter path, each point P1 in the graph is traversed, and the radius length of each segment of circular arc is calculated.
Wherein, the step (3) of calculating the arc radius length specifically comprises the following steps:
traversing each point P1 in the graph, if the point P1 is on the arc, calculating the radius R of the arc through the center O1, and the concrete formula is as follows:
(4) and inserting an arc process starting instruction and an arc process finishing instruction into the generated tool path, and marking the radius R of the arc.
(5) When the sharp corner process is started, setting a desired maximum sharp corner angle alpha, a desired maximum sharp corner length beta, and a peak power, a cutting frequency and a duty ratio used at the sharp corner, representing all corners with the angle less than or equal to alpha, and executing the sharp corner process from a position beta mm before an inflection point to a position beta mm after the inflection point.
(6) When the arc process is started, the expected maximum arc radius gamma, the peak power, the cutting frequency and the duty ratio used at the arc are set, and the arc process is executed from the starting point of the arc to the end of the arc for all the arc sections with the radius less than or equal to gamma.
(7) And controlling the laser cutting head to move according to the cutting motion track when starting processing to cut the plate.
(8) When the cutting head enters a corner, if a sharp corner process is started and the sharp corner angle of the next corner meets the requirement of the sharp corner process, when the cutting head moves to a position with a distance inflection point just equal to the length of the sharp corner, controlling the laser cutting head to adjust laser and starting to execute the preset peak power, cutting frequency and duty ratio of the sharp corner process; when the cutting head moves out of the corner to a position where the distance from the inflection point is just equal to the length of the sharp corner, the laser cutting head is controlled again to adjust the laser, and the peak power, the cutting frequency and the duty ratio used by the cutting process are recovered.
(9) When the arc process is started and the radius of the next arc meets the requirement of the arc process, when the cutting head moves to the position of the starting point of the arc section, controlling the laser cutting head to adjust laser and starting to execute the preset peak power, cutting frequency and duty ratio of the arc process; when the cutting head moves to the position of the end point of the arc segment, the laser cutting head is controlled again to adjust the laser, and the peak power, the cutting frequency and the duty ratio used by the cutting process are recovered.
In an embodiment of the present invention, the vector calculation specifically includes the following steps:
1. if the points P1, P2 and P3 are all on a straight line, as shown in FIG. 2, then
2. If the points P1 and P2 are on a straight line, the point P3 is on an arc and the center of the circle is O2(x5, y5), as shown in FIG. 3, then
A vector V2 is represented by a tangent line of a point P1 on an arc, and if the arc is clockwise, V2 is (y1-y5, x5-x1), and if the arc is counterclockwise, V2 is (y5-y1, x1-x 5);
3. if the points P1 and P2 are on the circular arc and the circle center is O1(x4, y4) and the point P3 is on the straight line, as shown in fig. 4, the vector V1 is represented by using the tangent line of the point P1 on the circular arc, if the circular arc is clockwise, V1 is equal to (y4-y1, x1-x4), if the circular arc is counterclockwise, V1 is equal to (y1-y4, x4-x1),
4. if the points P1, P2 and P3 are all on the circular arc, the centers of the circles are O1(x4, y4) and O2(x5, y5), respectively, as shown in fig. 5. If the first arc is clockwise, V1 is equal to (y4-y1, x1-x4), if the first arc is counterclockwise, V1 is equal to (y1-y4, x4-x1), if the second arc is clockwise, V2 is equal to (y1-y5, x5-x1), and if the second arc is counterclockwise, V2 is equal to (y5-y1, x1-x 5).
For a specific implementation of this embodiment, reference may be made to the relevant description in the above embodiments, which is not described herein again.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by suitable instruction execution devices. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, and the corresponding program may be stored in a computer readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
By adopting the method, the device, the processor and the computer readable storage medium for avoiding the corner overburning slag-hanging defect based on the sharp angle process and the arc process in the numerical control system, the cutting method based on the sharp angle process and the arc process can control the peak power, the cutting frequency and the duty ratio of the light emitted by the cutting head when the cutting head moves to the corner, thereby ensuring that the specific parameter value is accurately adjusted when the cutting head passes through the corner, avoiding the overlarge laser power caused by the deceleration of the movement, solving the problem that the corner position is easy to overburning slag-hanging, improving the cutting effect of the corner and meeting the cutting quality requirement.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (11)
1. A method for avoiding corner overburning slag adhering defects based on a sharp angle process and an arc process in a numerical control system is characterized by comprising the following steps:
(1) drawing a cutting graph to generate a cutter path;
(2) judging whether a sharp angle process or an arc process is prepared, if so, continuing the step (3); otherwise, continuing the step (4);
(3) calculating the sharp angle of each inflection point, inserting a sharp angle process instruction, and continuing the step (5);
(4) calculating the radius length of each section of circular arc, inserting an instruction of the circular arc process, and continuing the step (5);
(5) controlling the laser cutting head to move according to the cutting motion track to start cutting;
(6) judging whether a sharp corner process or an arc process is started, and if the sharp corner process is started, continuing the step (7); otherwise, continuing the step (8);
(7) starting a sharp angle process, controlling a laser cutting head to emit light according to the sharp angle process when the sharp angle of the corner and the front distance of the corner meet the conditions, and controlling the laser cutting head to emit light according to the cutting process after the cutting head exits from the corner motion;
(8) starting the arc process, controlling the laser cutting head to emit light according to the arc process when the arc radius and the arc starting position meet the conditions, and controlling the laser cutting head to emit light according to the cutting process when the cutting head reaches the arc ending position.
2. The method for avoiding the corner over-burning slag-adhering defect based on the sharp angle process and the arc process in the numerical control system according to claim 1, wherein the step (3) specifically comprises the following steps:
(3.1) traversing each point in the graph, for each point P1(x1, y1), determining a first half vector V1 and a second half vector V2 of the sharp corner by its previous point P2(x2, y2) and its next point P3(x3, y3), respectively, according to the type of the point;
(3.2) calculating the sharp angle of each inflection point;
and (3.3) inserting a sharp angle process instruction into the generated tool path, marking the angle theta of the corner where each point is located, and continuing to the step (5).
3. The method for avoiding the corner over-burning slag-adhering defect based on the sharp angle process and the arc process in the numerical control system according to claim 1, wherein the step (4) specifically comprises the following steps:
(4.1) traversing each point P1(x1, y1) in the graph;
(4.2) calculating the radius length of the circular arc through a circle center O1(x4, y 4);
and (4.3) inserting an arc process starting command and an arc process finishing command into the generated tool path, marking the radius R of the arc, and continuing to the step (5).
4. The method for avoiding the corner over-sintering slag-adhering defect based on the sharp corner process and the arc process in the numerical control system according to claim 2, wherein the step (3.2) of calculating the sharp corner angle of the inflection point specifically comprises the following steps:
calculating the sharp angle of the inflection point according to the following formula:
θ＝arccos(cosθ)；
wherein V1 is the first half vector of the sharp corner, and V2 is the second half vector of the sharp corner.
5. The method for avoiding the corner over-burning slag-adhering defect based on the sharp corner process and the circular arc process in the numerical control system according to claim 2, wherein the angle θ of the corner where each point is located in the step (3.3) comprises an included angle between a straight line and a straight line, an included angle between a straight line and a circular arc, an included angle between a circular arc and a straight line, and an included angle between a circular arc and a circular arc.
6. The method for avoiding the corner over-burning slag-adhering defect based on the sharp angle process and the arc process in the numerical control system according to claim 3, wherein the step (4.2) is to calculate the radius length of each segment of arc, specifically:
the radius length of each arc is calculated according to the following formula:
the point is P1(x1, y1), and the circle center of the arc is O1(x4, y 4).
7. The method for avoiding the corner over-burning slag-adhering defect based on the sharp angle process and the arc process in the numerical control system according to claim 1, wherein the step (7) specifically comprises the following steps:
(7.1) judging whether the next corner angle of cutting is smaller than or equal to the set sharp angle, if so, continuing the step (7.2); otherwise, continuing the step (7.1);
(7.2) judging whether the distance between the cutting head and the corner before reaching the corner is equal to the length of the sharp corner, if so, controlling the cutting head to emit light according to the sharp corner process, and executing the preset peak power, cutting frequency and duty ratio of the sharp corner process; otherwise, continuing the step (7.2);
(7.3) judging whether the distance between the cutting head and the corner is equal to the length of the sharp corner after the cutting head reaches the corner, if so, controlling the cutting head to emit light according to the cutting process, recovering the peak power, the cutting frequency and the duty ratio used by the cutting process, and ending the step; otherwise, continue with step (7.3).
8. The method for avoiding the corner over-burning slag-adhering defect based on the sharp angle process and the arc process in the numerical control system according to claim 1, wherein the step (8) specifically comprises the following steps:
(8.1) judging whether the radius of the lower section of the cut arc is smaller than or equal to the set arc radius, if so, continuing the step (8.2); otherwise, continuing the step (8.1);
(8.2) judging whether the arc starting position is reached, if so, controlling the cutting head to emit light according to an arc process, and executing the peak power, the cutting frequency and the duty ratio of a preset sharp angle process; otherwise, continuing the step (8.2);
(8.3) judging whether the arc end point position is reached, if so, controlling the cutting head to emit light according to the cutting process, recovering the peak power, the cutting frequency and the duty ratio used by the cutting process, and ending the step; otherwise, continue step (8.3).
9. The utility model provides a device for realizing avoiding turning overburning slagging defect based on closed angle technology and circular arc technology in numerical control system which characterized in that, the device include:
a processor configured to execute computer-executable instructions;
a memory storing one or more computer-executable instructions which, when executed by the processor, implement the steps of the method for avoiding corner overburning slag-adhering defects based on the sharp-angle process and the arc process in the numerical control system according to any one of claims 1 to 8.
10. A processor for realizing the corner overburning slag inclusion avoidance method based on the sharp angle process and the arc process in the numerical control system, wherein the processor is configured to execute computer executable instructions, and when the computer executable instructions are executed by the processor, the steps of the corner overburning slag inclusion avoidance method based on the sharp angle process and the arc process in the numerical control system according to any one of claims 1 to 8 are realized.
11. A computer-readable storage medium, having stored thereon a computer program executable by a processor to perform the steps of the method for avoiding corner overburning slagging defects based on a sharp angle process and a circular arc process in a numerical control system according to any one of claims 1 to 8.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005279662A (en) * | 2004-03-29 | 2005-10-13 | Amada Co Ltd | Method for working edge inserting hole |
| US20060250744A1 (en) * | 2005-05-05 | 2006-11-09 | Mctigue Michael T | Micro gap method and ESD protection device |
| CN203863222U (en) * | 2014-04-15 | 2014-10-08 | 东莞市行标自动化设备科技有限公司 | Full-automatic copper foil cutting circular-bead welding machine |
| US10259070B1 (en) * | 2015-11-06 | 2019-04-16 | Worth-Pfaff Innovations, Incorporated | System and methods for improved sheet metal cutting with improved sharper corners cutting technique |
| CN110369884A (en) * | 2019-08-21 | 2019-10-25 | 奔腾楚天激光（武汉）有限公司 | A kind of turning pulse cutting process of processing thick carbon steel plate right angle processing |
| CN111390399A (en) * | 2020-03-12 | 2020-07-10 | 上海柏楚电子科技股份有限公司 | Cutting control method and system based on cooling point, electronic device and medium |
| CN111571039A (en) * | 2020-06-23 | 2020-08-25 | 济南九泰企业管理咨询有限公司 | Laser cutting device and method capable of avoiding overburning |
-
2021
- 2021-12-06 CN CN202111511758.8A patent/CN114012247B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005279662A (en) * | 2004-03-29 | 2005-10-13 | Amada Co Ltd | Method for working edge inserting hole |
| US20060250744A1 (en) * | 2005-05-05 | 2006-11-09 | Mctigue Michael T | Micro gap method and ESD protection device |
| CN203863222U (en) * | 2014-04-15 | 2014-10-08 | 东莞市行标自动化设备科技有限公司 | Full-automatic copper foil cutting circular-bead welding machine |
| US10259070B1 (en) * | 2015-11-06 | 2019-04-16 | Worth-Pfaff Innovations, Incorporated | System and methods for improved sheet metal cutting with improved sharper corners cutting technique |
| CN110369884A (en) * | 2019-08-21 | 2019-10-25 | 奔腾楚天激光（武汉）有限公司 | A kind of turning pulse cutting process of processing thick carbon steel plate right angle processing |
| CN111390399A (en) * | 2020-03-12 | 2020-07-10 | 上海柏楚电子科技股份有限公司 | Cutting control method and system based on cooling point, electronic device and medium |
| CN111571039A (en) * | 2020-06-23 | 2020-08-25 | 济南九泰企业管理咨询有限公司 | Laser cutting device and method capable of avoiding overburning |
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