CN116275587A - Control system for laser cutting of workpiece - Google Patents
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Abstract
The invention provides a control system for laser cutting of a workpiece, which comprises a laser light path module, a pulse control module, a motion control module, a visual positioning module, a motion driving module and an upper computer, wherein the laser light path module is connected with the pulse control module; the laser light path module, the pulse control module, the motion control module and the visual positioning module are all connected with the upper computer, the motion control module is connected with the motion driving module, and the pulse control module is also connected with the laser light path module, so that when a user writes or modifies a specified file, the user only needs to write or modify a character string array, and does not need to write a large number of data encoding sets, thereby avoiding low time efficiency caused by generating the specified file; the control module corresponding to the appointed character string is judged according to the judging process, so that the control instruction is prevented from being sent to an error module; therefore, time efficiency and accuracy of control instruction transmission are improved.
Description
Technical Field
The invention relates to the technical field of laser cutting, in particular to a control system for laser cutting of a workpiece.
Background
With the continuous development of laser processing technology, the field of optical manufacturing is continuously innovated and higher requirements are put forward. The requirement of wafer-level optical cutting is more and more profound, and high-speed, high-efficiency and high-quality cutting becomes a problem to be solved urgently. Compared with the traditional mechanical cutting, the laser cutting has the advantages that the workpiece is not easy to crack due to non-contact processing, the yield can be effectively improved, and the laser cutting has the advantages. In recent years, laser technology has been rapidly developed, and the development of the wafer-level optical manufacturing field has been promoted.
In a typical control system for laser cutting a workpiece, each module needs to be controlled. However, the control instruction of each module is inconsistent with the data code to be written, the control instruction is required to be written for each module and then marked, and the control instruction is prevented from being sent to the wrong module, so that the writing time of the instructions of each module is saved, and the control instruction is accurately sent to the corresponding control module to improve the time efficiency.
Disclosure of Invention
Aiming at the technical problems, the invention adopts the following technical scheme:
the control system for the laser cutting of the workpiece comprises a laser light path module, a pulse control module, a motion control module, a visual positioning module, a motion driving module and an upper computer; the laser light path module, the pulse control module, the motion control module and the visual positioning module are all connected with the upper computer, the motion control module is connected with the motion driving module, and the pulse control module is also connected with the laser light path module;
the upper computer executes the following steps:
s100, acquiring a designated file W= (W) 1 ，W 2 ，……，W j ，……，W n ) J=1, 2, … … n; wherein n is the number of character strings in W j Designating a character string for the j-th line in W;
s200, obtainingData encoding set information list s= (S) 1 ，S 2 ，……，S i ，……，S m ) I=1, 2, … …, m; wherein m is the number of data encoding sets, S i Encoding set information for an i-th data, the data encoding set information comprising: a data encoding set and an identification corresponding to the data encoding set;
s300, if W k The first character of the first character string array is the first target mark, MW k Transmitting the laser beam to a laser path module; otherwise, executing S400; the first target mark represents W k The corresponding module is a laser light path module, MW k According to W k And W is k Corresponding data code set generating instruction, W k The corresponding data code set is S and SW k The data code sets corresponding to the same identifiers; the initial value of k is 1;
s400, if W k The last two characters of the first character string array are the first kind of key identification, PW k Sending to a motion control module; if W is k The last two characters of the first character string array are the second kind of key identification, PW k Send to pulse control module and W k The last character string array is sent to the pulse control module; PW (pseudo wire) k According to W k A generated motion control program file, the first key mark representing W k No pulse string array exists in the code, and the second key mark represents W k A pulse string array exists in the memory;
s500 if W k The last string array in the sequence is the first pulse string array, and the target time window t is set 0 As the working time of the laser light path module; if W is k The last character string array in the plurality is a second pulse character string array, and a target pulse signal M is obtained 0 And M is set to 0 Transmitting the laser beam to a laser path module; t is t 0 ＝(t 0 1 ，t 0 2 )，t 0 1 For the target start time, t 0 2 Is the target end time;
s600, if k+.n, set k=k+1 and execute S300.
The invention has at least the following beneficial effects:
the invention obtains an appointed file and a data coding set information list, judges each row of appointed character strings in the appointed file, if the first character of the first character string array in the judged appointed character string is a first target mark, sends an instruction generated by the corresponding judgment of the character string to a laser light path module, if the first character of the first character string array in the judged appointed character string is not the first target mark, judges the last two characters of the first character string array in the appointed character string, if the last two characters of the first character string array in the appointed character string are first type key marks, sends a motion control program file generated according to the appointed character string to a motion control module, if the last two characters of the first character string array in the appointed character string are second type key marks, sends the motion control program file generated by the appointed character string to a pulse control module, sends the last character string array in the appointed character string to the pulse control module, and judges the working mode of the laser according to the last character string array in the appointed character string. When a user writes or modifies a specified file, the user only needs to write or modify the character string array, and does not need to write a large number of data encoding sets, so that low time efficiency caused by generating the specified file is avoided; the control module corresponding to the appointed character string is judged according to the judging process, so that the control instruction is prevented from being sent to an error module; therefore, time efficiency and accuracy of control instruction transmission are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a control system for laser cutting a workpiece, which is executed by an upper computer;
fig. 2 is a schematic structural diagram of a control system for laser cutting a workpiece according to an embodiment of the present invention;
fig. 3 is a flowchart of a location information register according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The control system for the laser cutting of the workpiece comprises a laser light path module, a pulse control module, a motion control module, a visual positioning module, a motion driving module and an upper computer; the laser light path module, the pulse control module, the motion control module and the visual positioning module are all connected with the upper computer, the motion control module is connected with the motion driving module, and the pulse control module is also connected with the laser light path module.
Specifically, as shown in fig. 2, the laser light path module includes: the device comprises a laser, a beam expanding lens group, a reflecting mirror group and a Bessel beam shaping lens.
Further, the laser generates femtosecond laser, and the femtosecond laser sequentially passes through the beam expanding lens group, the reflecting mirror group and the Bessel beam shaping lens to form the Bessel beam with a longer focal depth range under a certain beam waist radius.
Further, the pulse control module is communicated with the upper computer through the USB and is used for controlling laser pulse triggering to realize different forms of pulse output modes.
Further, the motion driving module includes: the three-axis photoelectric encoder is connected with the pulse control module, the motion control module and the three-axis precise motion platform, and the three-axis precise motion platform is also connected with the laser path module; specifically, the motion control module is communicated with the upper computer through a network port and is used for driving the triaxial precision motion platform to realize the functions of precision displacement motion, position feedback, zero return control, motion parameter adjustment, program control and the like.
Further, the visual positioning module is connected with the upper computer and used for observing the processing surface of the workpiece and determining the relative movement position along with the precise movement module for positioning the processing object.
In the embodiment of the present invention, as shown in fig. 1, the upper computer performs the following steps:
s100, acquiring a designated file W= (W) 1 ，W 2 ，……，W j ，……，W n ) J=1, 2, … … n; wherein n is the number of character strings in W j A string is specified for the j-th line in W.
Specifically, each row of character strings in the specified file comprises at least 1 character string array.
Further, W is obtained by:
s110. acquire target file h= (H) 1 ，H 2 ，……，H r ，……，H R ) R=1, 2, … …, R; wherein R is the number of character strings in H, and the R-th character string in H corresponds to a target character string array list H r ＝(H r1 ，H r2 ，……，H rg ，……，H rG(r) ) g=1, 2, … …, G (G) is the number of target character string arrays in the r-th character string of the target file, H rg The method comprises the steps of setting a g target character string array in the r character string of a target file;
specifically, the target file is a file written according to the workpiece to be processed.
Further, the character string arrays in the target file are separated by spaces.
Further, those skilled in the art know that any method for obtaining the character string array separated by spaces in the file falls within the protection scope of the present invention, and will not be described herein.
S120, acquiring a preset character string array list D= (D) 1 ，D 2 ，……，D y ，……，D Y ) Y=1, 2, … …, Y; wherein Y is the number of preset character string arrays, D y The string array is preset for the y-th string.
S130, deleting the target character string array which is different from the preset character string array in the H to obtain W.
By deleting the target character string arrays which are different from the preset character string arrays in the target file, the specified file is obtained, meaningless character string arrays in the specified file are avoided, and the specified file is more accurate.
S200, acquiring a data encoding set information list S= (S) 1 ，S 2 ，……，S i ，……，S m ) I=1, 2, … …, m; wherein m is the number of data encoding sets, S i Encoding set information for an i-th data, the data encoding set information comprising: the data encoding set and the identification corresponding to the data encoding set.
Specifically, the preset character string array includes an identifier corresponding to the data set encoding set, and Y > m.
S300, if W k The first character of the first character string array is the first target mark, MW k Transmitting the laser beam to a laser path module; otherwise, executing S400; the first target mark represents W k The corresponding module is a laser light path module, MW k According to W k And W is k Corresponding data code set generating instruction, W k The corresponding data code set is S and SW k The data code sets corresponding to the same identifiers; the initial value of k is 1.
Specifically, in the embodiment of the present invention, the first character of the first string array in each string in the specified file is used to determine the control module corresponding to the string in the specified file, and two situations exist in the first character of the first string array in the specified file, for example, when the first character of the first string array in each string in the specified file is "L", the control module corresponding to the line instruction is the laser light path module; when the first character of the first character string array in each row of character strings in the designated file is G, the control module corresponding to the row of instructions is a motion control module or a motion control module and a pulse control module.
Further, MW k To run W k And W is k Instructions generated by the corresponding data encoding set.
S400, if W k The last two characters of the first character string array are the first kind of key identification, PW k Sending to a motion control module; if W is k The last two characters of the first character string array are the second kind of key identification, PW k Send to pulse control module and W k The last character string array is sent to the pulse control module; PW (pseudo wire) k According to W k A generated motion control program file, the first key mark representing W k No pulse string array exists in the code, and the second key mark represents W k There is an array of burst strings.
Specifically, in the embodiment of the present invention, the first type of key identifier includes, but is not limited to: 00. 01, 02, 03; the second type of key identification includes, but is not limited to: 06 and above; for example, when the last two characters of the first string array in each row of strings in the specified file are "02", the control module corresponding to the row of instructions is a motion control module; when the last two characters of the first character string array in each row of character strings in the designated file are '05', the control module corresponding to the row of instructions is a motion control module and a pulse control module.
Specifically, the motion control program file is a PMAC (Programmable Multi-Axis Controller, programmable multiaxial motion Controller) control file.
Further, those skilled in the art are aware of the following terms W k The method of generating the motion control program file falls within the scope of the present invention, and is not described herein.
S500 if W k The last string array in the sequence is the first pulse string array, and the target time window t is set 0 As the working time of the laser light path module; if W is k Last of (3)The character string array is a second pulse character string array, and a target pulse signal M is obtained 0 And M is set to 0 Transmitting the laser beam to a laser path module; t is t 0 ＝(t 0 1 ，t 0 2 )，t 0 1 For the target start time, t 0 2 Is the target end time.
S600, if k+.n, set k=k+1 and execute S300.
The embodiment obtains the specified file and the data encoding set information list, judges each row of specified character strings in the specified file, if the first character of the first character string array in the judged specified character string is a first target identifier, sends an instruction generated by corresponding to the judged character string to the laser light path module, if the first character of the first character string array in the judged specified character string is not the first target identifier, judges the last two characters of the first character string array in the specified character string, if the last two characters of the first character string array in the specified character string are first type key identifiers, sends a motion control program file generated according to the specified character string to the motion control module, if the last two characters of the first character string array in the specified character string are second type key identifiers, sends the motion control program file generated by the specified character string to the pulse control module, sends the last character string array in the specified character string to the pulse control module, and judges the working mode of the laser according to the last character string array in the specified character string. When a user writes or modifies a specified file, the user only needs to write or modify the character string array, and does not need to write a large number of data encoding sets, so that low time efficiency caused by generating the specified file is avoided; the control module corresponding to the appointed character string is judged according to the judging process, so that the control instruction is prevented from being sent to an error module; therefore, time efficiency and accuracy of control instruction transmission are improved.
In the embodiment of the present invention, the upper computer stores a key coordinate information list Gw= (GW) 1 ，GW 2 ，……，GW f ，……，GW F ) F=1, 2, … …, F is the number of key coordinate information, the F-th keyCoordinate information GW f ＝(XGW f ，BGF f )，XGW f Is GW (ground wire) f Corresponding key coordinates, BGF f XGW of a shape of XGW f The pulse control module comprises a position information register, wherein the position information register can store h pieces of position information.
In the embodiment of the present invention, the location register is an 8-bit register.
Specifically, h is obtained by:
s611, acquiring a storage space value c of a location register 0 The method comprises the steps of carrying out a first treatment on the surface of the Wherein c 0 Meets the following conditions: c 0 ＝8*2 x bit, x is a preset power coefficient;
s613 according to c 0 Obtaining h; wherein h meets the following conditions: h=c 0 And/xc, wherein xc is a storage space value occupied by coordinates corresponding to the cutting position points.
Further, as shown in FIG. 3, M 0 The method comprises the following steps of:
s610, acquiring a target coordinate list MW= (MW) 1 ，MW 2 ，……，MW q ，……，MW Q ) Q=1, 2, … …, Q; wherein Q is the number of target coordinates, MW q The Q-th target coordinate is a key coordinate corresponding to key coordinate information with a key coordinate mark of 0 in GW, and Q meets the following conditions; q=h/2;
s620, storing MW into the first storage space of the location information register and MW in GW q The key coordinate mark of the corresponding key coordinate is set to be 1; if the target reading pointer meets the setting condition, step S630 is executed;
specifically, the setting condition is that the target read pointer reads ZW Q 。
Further, the target coordinate list storage location is determined by the target write pointer.
S630, controlling the target reading pointer to read MW in the location information register s S is the beginningThe value is 1;
s640, acquiring current coordinates DW corresponding to the workpiece to be cut in real time 0 The method comprises the steps of carrying out a first treatment on the surface of the Wherein DW 0 The coordinates of the laser on the workpiece to be cut;
specifically, the motion control module further comprises an encoder and a decoder, wherein the encoder is used for acquiring the position coordinates of the workpiece and converting the position coordinates into electric signals to be output to the decoder, and the decoder decodes the electric signals to acquire the position coordinates as current coordinates.
S650, according to DW 0 And MW s Obtaining M 0 And delete MW in location information register s When DW 0 ＝MW s When M is 0 =1; otherwise, M 0 =0; if M 0 =1, then it indicates that the pulse control target transmits a pulse signal to the laser path module;
s660, the motion control module controls the motion driving module to move the workpiece by a preset distance L 0 If s+.q, set s=s+1 and execute S630.
Specifically, the user can set L according to the actual requirement 0 The values of (2) are not described in detail herein.
Further, step S660 further includes the following steps:
s661 when S is equal to the preset number threshold S 0 At this time, the specified coordinate list Zw= (ZW) 1 ，ZW 2 ，……，ZW q ，……，ZW Q ) The method comprises the steps of carrying out a first treatment on the surface of the Wherein ZW q The q-th designated coordinate is a key coordinate corresponding to key position information with a key coordinate mark of 0 in GW;
specifically, s 0 ＝Q/4。
S662, storing ZW in the second storage space of the location information register and storing ZW in GW q The key position mark of the corresponding key coordinate is set to be 1; the target read pointer is configured to, when read to MW Q After that, step S663 is performed;
s663 controlling the target read pointer to read ZW in the location information register d The initial value of d is 1;
s664, obtaining in real timeDW is taken 0 ；
S665, according to DW 1 And ZW d Obtaining M 0 And delete ZW in the location information register d When DW 1 ＝ZW d When M is 0 =1; otherwise, M 0 =0; if M 0 =1, then it indicates that the pulse control target transmits a pulse signal to the laser path module;
s666, the motion control module controls the motion driving module to move the workpiece by a preset distance L 0 If d+.q, set s=s+1 and execute S630;
s667 when d=s 0 At this time, S610 is performed.
The position information register is divided into two storage spaces, key coordinate information is written into the position information register in a divided mode according to preset rules, current coordinates corresponding to the workpiece to be cut are obtained in real time, and the coordinates in the position information register are read through the target reading pointer and compared with the current coordinates. Through storing a small amount of position coordinates to the position information register each time, the position information register can be quickly read according to the target reading pointer, so that the time difference between the time for reading the position coordinates and the time for acquiring the current coordinates is avoided to be large, a workpiece is not positioned at the reading position when the laser operates, and the cut workpiece has errors, so that the timeliness and the stability of laser cutting are ensured.
In an embodiment of the invention, t 0 The method comprises the following steps of:
s601, acquiring a length L to be cut corresponding to a workpiece to be cut 0 ；
S602, obtaining the moving speed V of the workpiece to be cut 0 ；
S603, according to L 0 And V 0 Acquiring the processing time t corresponding to the workpiece with cutting; wherein t meets the following conditions: t=v 0 /L 0 ；
S604, taking the initial movement time of the workpiece to be cut as t 0 1 ；
S604, according to t and t 0 1 Obtaining t 0 2 ；t 0 2 Meets the following conditions: t is t 0 2 ＝t 0 1 +t。
Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.
Furthermore, the above-described figures are only illustrative of the processes involved in the method according to exemplary embodiments of the present application, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. Those skilled in the art will also appreciate that many modifications may be made to the embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. The control system for the laser cutting of the workpiece comprises a laser light path module, a pulse control module, a motion control module, a visual positioning module, a motion driving module and an upper computer; the laser light path module, the pulse control module, the motion control module and the visual positioning module are all connected with the upper computer, the motion control module is connected with the motion driving module, and the pulse control module is also connected with the laser light path module;
the upper computer executes the following steps:
s100, acquiring a designated file W= (W) 1 ，W 2 ，……，W j ，……，W n ) J=1, 2, … … n; wherein n is the number of character strings in W j Designating a character string for the j-th line in W;
s200, acquiring a data encoding set information list S= (S) 1 ，S 2 ，……，S i ，……，S m ) I=1, 2, … …, m; wherein m is the number of data encoding sets, S i Encoding set information for an i-th data, the data encoding set information comprising: a data encoding set and an identification corresponding to the data encoding set;
s300, if W k The first character of the first character string array is the first target mark, MW k Transmitting the laser beam to a laser path module; otherwise, executing S400; the first target mark represents W k The corresponding module is a laser light path module, MW k According to W k And W is k Corresponding data code set generating instruction, W k The corresponding data code set is S and SW k The data code sets corresponding to the same identifiers; the initial value of k is 1;
s400, if W k The last two characters of the first character string array are the first kind of key identification, PW k Sending to a motion control module; if W is k The last two characters of the first character string array are the second kind of key identification, PW k Send to pulse control module and W k The last character string array is sent to the pulse control module; PW (pseudo wire) k According to W k A generated motion control program file, the first key mark representing W k No pulse string array exists in the code, and the second key mark represents W k A pulse string array exists in the memory;
s500 if W k The last string array in the sequence is the first pulse string array, and the target time window t is set 0 As the working time of the laser light path module; if W is k The last character string array in the plurality is a second pulse character string array, and a target pulse signal M is obtained 0 And M is set to 0 Transmitting the laser beam to a laser path module; t is t 0 ＝(t 0 1 ，t 0 2 )，t 0 1 For the target start time, t 0 2 Is the target end time;
s600, if k+.n, set k=k+1 and execute S300.
2. The method of claim 1, wherein the upper computer stores a key coordinate information list Gw= (GW) 1 ，GW 2 ，……，GW f ，……，GW F ) F=1, 2, … …, F is the number of key coordinate information, the F-th key coordinate information GW f ＝(XGW f ，BGF f )，XGW f Is GW (ground wire) f Corresponding key coordinates, BGF f XGW of a shape of XGW f The corresponding key coordinate identification is initially 0, the key coordinate information is the coordinate corresponding to the position point to be cut of the workpiece to be cut, the pulse control module comprises a position information register, and the position information register can store h pieces of position information, M 0 The method comprises the following steps of:
S610、acquisition of target coordinate list mw= (MW 1 ，MW 2 ，……，MW q ，……，MW Q ) Q=1, 2, … …, Q; wherein Q is the number of target coordinates, MW q The Q-th target coordinate is a key coordinate corresponding to key coordinate information with a key coordinate mark of 0 in GW, and Q meets the following conditions; q=h/2;
s620, storing MW into the first storage space of the location information register and MW in GW q The key coordinate mark of the corresponding key coordinate is set to be 1; if the target reading pointer meets the setting condition, step S630 is executed;
s630, controlling the target reading pointer to read MW in the location information register s S has an initial value of 1;
s640, acquiring current coordinates DW corresponding to the workpiece to be cut in real time 0 The method comprises the steps of carrying out a first treatment on the surface of the Wherein DW 0 The coordinates of the laser on the workpiece to be cut;
s650, according to DW 0 And MW s Obtaining M 0 And delete MW in location information register s When DW 0 ＝MW s When M is 0 =1; otherwise, M 0 =0; if M 0 =1, then it indicates that the pulse control target transmits a pulse signal to the laser path module;
s660, the motion control module controls the motion driving module to move the workpiece by a preset distance L 0 If s+.q, set s=s+1 and execute S630.
3. The method according to claim 2, further comprising the step after step S660 of:
s661 when S is equal to the preset number threshold S 0 At this time, the specified coordinate list Zw= (ZW) 1 ，ZW 2 ，……，ZW q ，……，ZW Q ) The method comprises the steps of carrying out a first treatment on the surface of the Wherein ZW q The q-th designated coordinate is a key coordinate corresponding to key position information with a key coordinate mark of 0 in GW;
s662, storing ZW in the second storage space of the location information register and storing ZW in GW q Corresponding keyThe key position mark of the coordinate is set to be 1; the target read pointer is configured to, when read to MW Q After that, step S663 is performed;
s663 controlling the target read pointer to read ZW in the location information register d The initial value of d is 1;
s664, obtaining DW in real time 0 ；
S665, according to DW 1 And ZW d Obtaining M 0 And delete ZW in the location information register d When DW 1 ＝ZW d When M is 0 =1; otherwise, M 0 =0; if M 0 =1, then it indicates that the pulse control target transmits a pulse signal to the laser path module;
s666, the motion control module controls the motion driving module to move the workpiece by a preset distance L 0 If d+.q, set s=s+1 and execute S630;
s667 when d=s 0 At this time, S610 is performed.
4. The method of claim 2, wherein the location register is an 8-bit register.
5. The method of claim 4, wherein h is obtained by:
s611, acquiring a storage space value c of a location register 0 The method comprises the steps of carrying out a first treatment on the surface of the Wherein c 0 Meets the following conditions: c 0 ＝8*2 x bit, x is a preset power coefficient;
s613 according to c 0 Obtaining h; wherein h meets the following conditions: h=c 0 And/xc, wherein xc is a storage space value occupied by coordinates corresponding to the cutting position points.
6. The method of claim 1, wherein t 0 The method comprises the following steps of:
s601, acquiring a length L to be cut corresponding to a workpiece to be cut 0 ；
S602, obtaining the moving speed V of the workpiece to be cut 0 ；
S603, according to L 0 And V 0 Acquiring the processing time t corresponding to the workpiece with cutting; wherein t meets the following conditions: t=v 0 /L 0 ；
S604, taking the initial movement time of the workpiece to be cut as t 0 1 ；
S604, according to t and t 0 1 Obtaining t 0 2 ；t 0 2 Meets the following conditions: t is t 0 2 ＝t 0 1 +t。
7. The method according to claim 1, wherein W is obtained by:
s110. acquire target file h= (H) 1 ，H 2 ，……，H r ，……，H R ) R=1, 2, … …, R; wherein R is the number of character strings in H, and the R-th character string in H corresponds to a target character string array list H r ＝(H r1 ，H r2 ，……，H rg ，……，H rG(r) ) g=1, 2, … …, G (G) is the number of target character string arrays in the r-th character string of the target file, H rg The method comprises the steps of setting a g target character string array in the r character string of a target file;
s120, acquiring a preset character string array list D= (D) 1 ，D 2 ，……，D y ，……，D Y ) Y=1, 2, … …, Y; wherein Y is the number of preset character string arrays, D y Presetting a character string array for the y-th character string;
s130, deleting the target character string array which is different from the preset character string array in the H to obtain W.
8. The method of claim 5, wherein x = 11.
9. A method according to claim 3, wherein the set condition is that the target read pointer reads ZW Q 。
10. The method of claim 2, wherein s 0 ＝Q/4。
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