CN103537807B - A kind of cutting technique modularized processing method based on laser cutting software - Google Patents
A kind of cutting technique modularized processing method based on laser cutting software Download PDFInfo
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- CN103537807B CN103537807B CN201310524762.7A CN201310524762A CN103537807B CN 103537807 B CN103537807 B CN 103537807B CN 201310524762 A CN201310524762 A CN 201310524762A CN 103537807 B CN103537807 B CN 103537807B
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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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- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
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Abstract
The present invention relates to lasser cutting technical field, specifically a kind of cutting technique modularized processing method based on laser cutting software.A kind of cutting technique modularized processing method based on laser cutting software, it is characterized in that: adopt CypCut laser cutting software to carry out figure layer editor, then carrying out plate cutting process, the process step of described figure layer editor is as follows: (1) enters editor's figure layer dialog box；(2) set up global parameter structure (3) and preserve global parameter structure；(4) figure layer parameter structure is set up；(5) carry out figure layer parameter to pre-set；(6) figure layer parameter is preserved；(7) figure layer parameter structure is preserved to material depot；(8) exit.Compared with the existing technology, it is ensured that actual cutting process regulates in real time power according to speed.The map data mining platform text of all preservations constitutes material depot, and material depot stores on computers with the form of file, conveniently copies transplanting, solves the problem that a machine can only use the machine material depot.
Description
Technical field
The present invention relates to lasser cutting technical field, specifically a kind of cutting technique modularized processing method based on laser cutting software.
Background technology
CypCut laser cutting software is a set of laser cutting software of independent research of the present invention, and figure layer is the module that in laser cutting software, Finish & Workmanship parameter is arranged.In Laser cutting process, cutting technique and the kinematic parameter of different plates are all not quite similar, arranging of cutting parameter will directly affect the effect of plate cutting, but arranging of these parameters is all bit by bit debug out in actual cutting process, including the mode of cutting, speed, power, air pressure and time delay etc., the change of each parameter all may affect the final effect of plate cutting.There is very big difference in cutting parameter that the sheet material of each unlike material different model uses, often changing a kind of sheet material must tuning parameter again.
Therefore, it is necessary to be a set of convenient and quick setting of the Finish & Workmanship parameter designing in cut and store method.Existing method can only be very general parameter is set, but in the practical operation of cut, the sheet material of different-thickness should use different hole patterns, the parameter that different hole patterns should be corresponding different；The sheet material of unlike material should use different cutting techniques, and too single general parameter arranges the requirement that can not meet different plates different process.In addition, laser cutting system also to control other external equipments except controlling mechanical movement, such as Height-adjusting device, laser instrument, gas etc., the control process of external equipment be there is also difference by different cutting modes, but currently the majority laser cutting system only has fairly simple control mode, lacks motility.Simultaneously, the control process of these parameters and external equipment all debugs out in actual cutting process, it it is the accumulation of a kind of experience, the control process of these parameters and external equipment is not carried out classification and the preservation of system by existing laser cutting system, cause that putting into the too much time carries out adjustment and the setting of parameter, greatly reduces efficiency.
Summary of the invention
The present invention is for overcoming the deficiencies in the prior art, laser cutting software designs the parameter module method to set up of a set of convenient and efficient, solution must not arrange parameter flexibly, the problem that single parameter can not meet various cuts sheet material and technique, user self-defining method is provided simultaneously, reaches always have set of parameter can meet the demand of client under the cut mode of any technique of any environment and sheet material.
For achieving the above object, design a kind of cutting technique modularized processing method based on laser cutting software, it is characterized in that: adopt CypCut laser cutting software to carry out figure layer editor, then carrying out plate cutting process, the process step of described figure layer editor is as follows: (1) enters editor's figure layer dialog box；(2) set up global parameter structure (3) and preserve global parameter structure；(4) figure layer parameter structure is set up；(5) carry out figure layer parameter to pre-set；(6) figure layer parameter is preserved；(7) figure layer parameter structure is preserved to material depot；(8) exit；Described set up global parameter structure be respectively equipped with set up kinematic parameter storehouse, peripheral hardware controls parameter, sets up PLC procedure library, is respectively provided with empty shifting, inspection limit, 10mm circle of reference speed of turning round in described kinematic parameter storehouse；Control parameter is respectively provided with the air pressure of fixed fire parameter, air blowing at peripheral hardware；PLC procedure library is edited PLC process；Described figure layer parameter structure of setting up is respectively equipped with and sets up cut mode module, sets up cutting parameter module, sets up power curve module；Described sets up cut mode module for setting up directly cutting, segmentation perforation, progressive perforation, four kinds of cut mode of three grades of perforation respectively；Described set up cutting parameter module for setting up cutting-height variable, cutting power variable, cutting frequency variable, cutting speed variable, cutting pressure variation, cutting gas variable respectively, open the light delay variable；Described set up power curve module be import preset adjust curve with speed power；Described PLC process includes direct cutting process, segmentation perforation procedure, progressive perforation procedure, three grades of perforation procedure, pass laser processes.
Described figure layer dialog box is handled as follows step: (1) enters figure layer dialog box；(2) user arranges global parameter at global parameter structural interface；(3) the figure layer parameter of concrete sheet material is set in figure layer parameter structure；(4) judge whether material depot exists the cutting parameter of corresponding sheet material；(5) cutting parameter of if there is no corresponding sheet material, then returning (3rd) step " arranging the figure layer parameter of concrete sheet material in figure layer parameter structure ", if there is the cutting parameter of corresponding sheet material, then reading the cutting parameter of corresponding sheet material from material depot；(6) preserve the cutting parameter of sheet material, exit figure layer dialog box.
The cutting process of described sheet material adopts following steps: (1) inspection limit: use the inspection limit speed in global parameter, it is determined that the size of cutting；(2) sky is walked: the cutting parameter sky in use figure layer parameter is walked, and the gas that do not open the light not open moves graphics track once；(3) read the cutting speed in the kinematic parameter of global parameter and figure layer, generate geometric locus；(4) cut mode in figure layer parameter is read；(5) in PLC procedure library, corresponding PLC process is read；(6) single step performs each step action in PLC process from top to bottom；(7) start to carry out cut by orbiting motion；(8) judging whether that all pattern cut complete, be then read in PLC procedure library, close laser process, perform to close laser action, otherwise current Graphics has cut, and sky moves on to the starting point of next figure；(9) read in PLC procedure library, close laser process, perform to close laser action；(10) process finishing, returns to process finishing anchor point.
Described single step performs PLC process for carrying out following steps: (1) determines whether peripheral hardware action；(2) it is peripheral hardware action, then carries out peripheral hardware test, then open or close peripheral hardware, then terminate；It not peripheral hardware action, then perform parameter and arrange；(3) judge that parameter belongs to figure layer parameter；(4) if belonging to figure layer parameter, then reading corresponding figure layer parameter, if being not belonging to figure layer parameter, then reading corresponding global parameter；(5) relevant parameter is performed；(6) terminate.
Described peripheral hardware test includes laser instrument test and gas test, is handled as follows step when carrying out laser instrument test: (11) fixed fire: read the fixed fire parameter in global parameter；(12) can open the light no；(13) can open the light, then terminate, it is impossible to open the light, then check that peripheral hardware connects, return again to " fixed fire " step；It is handled as follows step: (21) blow: read the acquiescence air pressure in global parameter, open gas when carrying out gas test；(22) gas can be opened no；(23) gas can not be opened, then check that peripheral hardware connects, be then back to " air blowing " step；Gas can be opened then terminate.
Described editor's PLC process is for being handled as follows step: (1) enters PLC process editing interface；(2) PLC is selected to need the process of editor；(3) add or delete PLC process: selecting the step needing to perform to double-click or click in the left list and add button, insert a PLC process, now show on the right side of interface already inserted into process, click delete button delete process, click upwards down button set-up procedure execution order；(3) edited no；(4) do not have editor to complete, then return " add or delete PLC process " step；Edit, preserved the process of editor；(5) continue to edit other processes no；(6) continue editor, then return " selecting PLC to need the process of editor "；Do not continue editor, then terminate to exit.
Described PLC process includes direct cutting process, segmentation perforation procedure, progressive perforation procedure, three grades of perforation procedure, pass laser processes.
Described direct cutting process is sequentially carried out and processes step as follows: (1) follows cutting-height；(2) gas is opened；(3) cutting air pressure is set；(4) gas time delay is opened；(5) cutting frequency is set, cutting power is set, cutting laser form is set；(6) open laser, time delay of opening the light.
Described segmentation perforation procedure is sequentially carried out and processes step as follows: (1) follows perforation height；(2) stop；(3) gas is opened；(4) perforation air pressure is set；(5) gas time delay is opened；(6) point cycle is set, punctured power is set, perforation laser form is set；(7) laser, perforation time delay are opened；(8) cutting-height is followed；(9) cutting air pressure is set；(10) ventilation time delay；(11) cutting frequency is set, cutting laser form is set, cutting power is set；(12) open the light time delay.
Described progressive perforation procedure is sequentially carried out and processes step as follows: (1) follows perforation height；(2) stop；(3) gas is opened；(4) perforation air pressure is set；(5) gas time delay is opened；(6) point cycle is set, punctured power is set, perforation laser form is set；(7) laser, perforation time delay are opened；(8) progressive perforation；(9) cutting-height is followed；(10) cutting air pressure is set；(11) ventilation time delay；(12) cutting frequency is set, cutting laser form is set, cutting power is set；(13) open the light time delay.
Three grades of described perforation procedure are sequentially carried out and process step as follows: (1) follows pop perforation height；(2) gas is opened；(3) explosion air pressure is set；(4) gas time delay is opened；(5) Blast frequency is set, explosion power is set, explosion laser form is set；(6) laser, blasting time are opened；(8) progressive perforation；(9) next stage perforation is performed according to the hole pattern of next stage.
The present invention is compared with the existing technology, convenient and quick setting and store method, the self-defined setting of energy and amendment, the control process of the parameter of laser cutting system and external equipment can be carried out classification and the preservation of system, for the problem processing burning angle, corner, the invention provides power curve to regulate for user, specify specific power at a particular speed, greatly reduce the probability burning angle, can also according to actual cutting situation, regulate power curve, it is ensured that actual cutting process regulates in real time power according to speed.Figure layer parameter also provides for remarks text box, it is provided that the extension of quantity of information, by completely recorded for the experience of practical operation.All information in figure layer parameter, with saving in the way of text per family, directly read information when next time cuts identical sheet material.The map data mining platform text of all preservations constitutes material depot, and material depot stores on computers with the form of file, conveniently copies transplanting, solves the problem that a machine can only use the machine material depot.
Accompanying drawing explanation
Fig. 1 is the process flow block diagram of the figure layer editor of the present invention.
Fig. 2 is the track before processing in the present invention and parameter confirmation.
Fig. 3 is the process flow block diagram of plate cutting in the present invention.
Fig. 4 is the process flow block diagram that in the present invention, single step PLC performs process.
Fig. 5 is the peripheral hardware test before the present invention processes.
Fig. 6 is PLC process editing process figure of the present invention.
Fig. 7 be the present invention directly cut, segmentation perforation, progressive perforation, three grades perforation PLC specifically perform process.
Fig. 8 is the parameter that three kinds of cut mode of the present invention are corresponding.
Fig. 9 is S shape acceleration and deceleration curves figure of the present invention.
Figure 10 is power curve of the present invention.
Detailed description of the invention
Below according to accompanying drawing, the present invention is described further.
As it is shown in figure 1, adopt CypCut laser cutting software to carry out figure layer editor, then carrying out plate cutting process, the process step of described figure layer editor is as follows: (1) enters editor's figure layer dialog box；(2) set up global parameter structure (3) and preserve global parameter structure；(4) figure layer parameter structure is set up；(5) carry out figure layer parameter to pre-set；(6) figure layer parameter is preserved；(7) figure layer parameter structure is preserved to material depot；(8) exit；Described set up global parameter structure be respectively equipped with set up kinematic parameter storehouse, peripheral hardware controls parameter, sets up PLC procedure library, is respectively provided with empty shifting, inspection limit, 10mm circle of reference speed of turning round in described kinematic parameter storehouse；Control parameter is respectively provided with the air pressure of fixed fire parameter, air blowing at peripheral hardware；PLC procedure library is edited PLC process；Described figure layer parameter structure of setting up is respectively equipped with and sets up cut mode module, sets up cutting parameter module, sets up power curve module；Described sets up cut mode module for setting up directly cutting, segmentation perforation, progressive perforation, four kinds of cut mode of three grades of perforation respectively；Described set up cutting parameter module for setting up cutting-height variable, cutting power variable, cutting frequency variable, cutting speed variable, cutting pressure variation, cutting gas variable respectively, open the light delay variable；Described set up power curve module be import preset adjust curve with speed power.
As in figure 2 it is shown, figure layer dialog box is handled as follows step: (1) enters figure layer dialog box；(2) user arranges global parameter at global parameter structural interface；(3) the figure layer parameter of concrete sheet material is set in figure layer parameter structure；(4) judge whether material depot exists the cutting parameter of corresponding sheet material；(5) cutting parameter of if there is no corresponding sheet material, then returning (3rd) step " arranging the figure layer parameter of concrete sheet material in figure layer parameter structure ", if there is the cutting parameter of corresponding sheet material, then reading the cutting parameter of corresponding sheet material from material depot；(6) preserve the cutting parameter of sheet material, exit figure layer dialog box.
As it is shown on figure 3, the cutting process of sheet material adopts following steps: (1) inspection limit: use the inspection limit speed in global parameter, it is determined that the size of cutting；(2) sky is walked: the cutting parameter sky in use figure layer parameter is walked, and the gas that do not open the light not open moves graphics track once；(3) read the cutting speed in the kinematic parameter of global parameter and figure layer, generate geometric locus；(4) cut mode in figure layer parameter is read；(5) in PLC procedure library, corresponding PLC process is read；(6) single step performs each step action in PLC process from top to bottom；(7) start to carry out cut by orbiting motion；(8) judging whether that all pattern cut complete, be then read in PLC procedure library, close laser process, perform to close laser action, otherwise current Graphics has cut, and sky moves on to the starting point of next figure；(9) read in PLC procedure library, close laser process, perform to close laser action；(10) process finishing, returns to process finishing anchor point.
As shown in Figure 4, single step performs PLC process for carrying out following steps: (1) determines whether peripheral hardware action；(2) it is peripheral hardware action, then carries out peripheral hardware test, then open or close peripheral hardware, then terminate；It not peripheral hardware action, then perform parameter and arrange；(3) judge that parameter belongs to figure layer parameter；(4) if belonging to figure layer parameter, then reading corresponding figure layer parameter, if being not belonging to figure layer parameter, then reading corresponding global parameter；(5) relevant parameter is performed；(6) terminate.
As it is shown in figure 5, peripheral hardware test includes laser instrument test and gas test, it is handled as follows step when carrying out laser instrument test: (11) fixed fire: read the fixed fire parameter in global parameter；(12) can open the light no；(13) can open the light, then terminate, it is impossible to open the light, then check that peripheral hardware connects, return again to " fixed fire " step；It is handled as follows step: (21) blow: read the acquiescence air pressure in global parameter, open gas when carrying out gas test；(22) gas can be opened no；(23) gas can not be opened, then check that peripheral hardware connects, be then back to " air blowing " step；Gas can be opened then terminate.
As shown in Figure 6, editor's PLC process is for being handled as follows step: (1) enters PLC process editing interface；(2) PLC is selected to need the process of editor；(3) add or delete PLC process: selecting the step needing to perform to double-click or click in the left list and add button, insert a PLC process, now show on the right side of interface already inserted into process, click delete button delete process, click upwards down button set-up procedure execution order；(3) edited no；(4) do not have editor to complete, then return " add or delete PLC process " step；Edit, preserved the process of editor；(5) continue to edit other processes no；(6) continue editor, then return " selecting PLC to need the process of editor "；Do not continue editor, then terminate to exit.
As it is shown in fig. 7, PLC process includes direct cutting process, segmentation perforation procedure, progressive perforation procedure, three grades of perforation procedure, pass laser processes.
Direct cutting process is sequentially carried out and processes step as follows: (1) follows cutting-height；(2) gas is opened；(3) cutting air pressure is set；(4) gas time delay is opened；(5) cutting frequency is set, cutting power is set, cutting laser form is set；(6) open laser, time delay of opening the light.
Segmentation perforation procedure is sequentially carried out and processes step as follows: (1) follows perforation height；(2) stop；(3) gas is opened；(4) perforation air pressure is set；(5) gas time delay is opened；(6) point cycle is set, punctured power is set, perforation laser form is set；(7) laser, perforation time delay are opened；(8) cutting-height is followed；(9) cutting air pressure is set；(10) ventilation time delay；(11) cutting frequency is set, cutting laser form is set, cutting power is set；(12) open the light time delay.
Progressive perforation procedure is sequentially carried out and processes step as follows: (1) follows perforation height；(2) stop；(3) gas is opened；(4) perforation air pressure is set；(5) gas time delay is opened；(6) point cycle is set, punctured power is set, perforation laser form is set；(7) laser, perforation time delay are opened；(8) progressive perforation；(9) cutting-height is followed；(10) cutting air pressure is set；(11) ventilation time delay；(12) cutting frequency is set, cutting laser form is set, cutting power is set；(13) open the light time delay.
Three grades of perforation procedure are sequentially carried out and process step as follows: (1) follows pop perforation height；(2) gas is opened；(3) explosion air pressure is set；(4) gas time delay is opened；(5) Blast frequency is set, explosion power is set, explosion laser form is set；(6) laser, blasting time are opened；(8) progressive perforation；(9) next stage perforation is performed according to the hole pattern of next stage.
The mentality of designing of the present invention is:
One, the series of parameters determined by mechanical performance being called global parameter, kinematic parameter abundant in global parameter solves the laser cutting machine correspondence single movement parameter of different type of machines and the problem of the different corresponding single speed parameters that moves.Global parameter provides the function of program process editor here during PLC, user can edit according to the actual needs open the light, Guan Guang, perforation, explosion, the process such as pre-punching, custom feature replaces single fixing cutting process flexibly, provides the possibility of infinite expanding for equipment.Wherein, the global parameter different sphere of actions according to parameter, it is divided into motor control parameter, laser control parameters, gas control parameter, model-following control parameter, advanced parameters and PLC sequential editor with the structural area of module.Global parameter is primarily directed to performance of machinery itself and external control design, the machining control algorithm that the present invention uses is the acceleration and deceleration pattern of S shape, speed parameter is mainly made up of speed, acceleration and acceleration, and this design is more smoother than T-shaped acceleration and deceleration, decreases the impact to machinery；The speed of turning round turned round of impact, turns round acceleration and 10mm circle of reference speed falls within global parameter；Laser control parameters mainly controls fixed fire laser, for before cutting go out optical tests provide convenient；Gas control parameter is mainly used for test and blows and arrange the time delay after opening gas；Model-following control parameter mainly affects the action of laser head.
The whole machining control process of PLC sequential edit definition is likely to the step used, as: laser switch, gas switch, follow action, IO action, frequency that time delay and cutting use, power, the operation such as laser form, present invention acquiescence gives direct cutting, segmentation perforation, progressive perforation, pop perforation (three grades of perforation), the processes such as pre-punching and pass laser, all processes that PLC sequential editor provides are self-defined with carrying out according to the actual needs per family, to reach to meet the purpose of different occasion difference demand.
Two, the parameter determined by concrete sheet material and cutting technique is called figure layer parameter, different classes of parameter is for meeting different cutting techniques, these figure layer parameters are saved with file mode simultaneously, constitute the material depot being commonly called as, cutting parameter can be introduced directly into use from material depot when cutting same sheet material by next time, solve and repeatedly adjust the time loss that identical sheet material parameter is brought, valuable experience succession can also be gone down simultaneously.
Figure layer parameter is the core of whole laser cutting system processing control parameter, involved frequency, power, air pressure, the time delay of pattern that processing uses, processing, follows height, power adjustments etc. all in the setting of figure layer parameter.
Wherein cut mode substantially being divided into 4 kinds in figure layer parameter: be direct cutting respectively, segmentation is bored a hole, progressive perforation, three grades of perforation.Additionally providing on this basis first bores a hole cuts and the special cut mode such as band film cutting afterwards.For the problem processing burning angle, corner, the invention provides power curve to regulate for user, specify specific power at a particular speed, greatly reduce the probability burning angle, can also according to actual cutting situation, regulate power curve, it is ensured that actual cutting process regulates in real time power according to speed.Also providing for remarks text box in figure layer parameter, it is possible to allow user freely fill in other information that this figure layer should be noted that, the information such as the type of such as gas, focal length, air pressure, it is provided that the extension of quantity of information, by completely recorded for the experience of practical operation.All information in figure layer parameter, with saving in the way of text per family, directly read information when next time cuts identical sheet material.The map data mining platform text of all preservations constitutes material depot, and material depot stores on computers with the form of file, conveniently copies transplanting, solves the problem that a machine can only use the machine material depot.
In the present invention, global parameter is follow-up after having debugged generally will not go change, and the sphere of action of global parameter is the whole course of processing；And the impact of figure layer parameter is the processing of current layer.
For achieving the above object, we provide the interface of parameter setting with the form of dialog box, with the pattern of paging, global parameter and figure layer parameter are made a distinction, the parameter that the different pages is corresponding different, 15 figure layers can be supported simultaneously, different figure layers can define different cutting parameters, to reach the various technique of file set, it is not necessary to gradation is processed.When CypCut laser cutting software is opened, system automatically establishes 15 figure layers and initializes, we distinguish different figure layers with different color displays, the structure of each figure layer is identical, and each parameter in figure layer can regard a leaf node as, and whole figure layer adopts tree structure storage.
Referring to Fig. 1, it is for editing global parameter that editor schemes the page 1 of layer dialog box, and global parameter is for controlling the parameter outside figure layer, as sky moves speed, fixed fire power etc., it is also possible to select speed and unit of acceleration.Other pages of dialog box list the All Layers currently used, and click each figure layer, it is possible to be separately provided the parameter of this figure layer.Mouse is pinned " figure layer " and drags, thus it is possible to vary the order between figure layer, and the figure layer being arranged in front first is processed.
Fig. 2 to Fig. 4, lists parameter application in whole laser cutting system.Referring to Fig. 2, enter reality cutting and parameter arrange before should first guarantee the normal of laser instrument and gas, we generally can carry out simple test job.Give the track before processing and parameter confirms.(1) first, we can according to the featured configuration global parameter of machinery, the then featured configuration figure layer parameter according to sheet material to be cut.(2) after parameter is provided with, frame can be walked and determine the size of whole cutting, it is ensured that processed file sky, without departing from stroke, is then walked, it is determined that track and parameter are arranged correctly by cutting.Referring to Fig. 3, (1) starts to add man-hour, and system can read all of kinematic parameter and generate Processing Curve.(2) reading corresponding PLC process according to the cut mode arranged in figure layer, then single step performs.(3) start orbiting motion, carry out the cutting of reality.Referring to Fig. 4, give the concrete execution process of single step PLC step.
Referring to Fig. 5, global parameter additionally provides the control parameter to external equipment, these parameters are mainly used in carrying out before cutting the test of external equipment, fixed fire including laser instrument, gas controls, and only by focal length, atmospheric pressure value just can carry out the cutting of reality after having tested, independent test module is user-friendly, also solves the problem of easy blending parameter when cutting with reality.The time delay of the gas in global parameter we be distinguished into first point air blowing time delay, air blowing time delay and ventilation time delay, if it is longer that the gas time delay distinguished under different situations is primarily due to add man-hour gas circuit at first point, time delay is inadequate, the insufficient meeting of gas causes that the place of figure starting point does not cut through, if merely arranging an air blowing time delay, starting point and following process cannot be taken into account, parameter arranged conference and causes wasting gas during following process, too small meeting is set and causes that starting point does not cut through, under this design pattern, the air blowing time delay of starting point adds air blowing time delay equal to first point air blowing time delay, and in processing, directly use air blowing time delay, both ensure that first point gas was abundant, also unnecessary gas can be avoided in cutting process to waste.Except directly cutting, remaining cutting mode is likely to use different gas when perforation and cutting, from perforation gas switch to cutting gas time gas circuit inside be likely present chadless gas, now increase a ventilation time delay can all be discharged by perforation gas, guarantee to use cutting gas when cutting, directly use without this time delay perforation gas to carry out cutting and can cause the phenomenons such as burning.Model-following control mainly regulates the action of laser head when processing sky is walked, maximum height that during including cutting, cutting head can follow directly after, empty whether use when moving leapfrog, whether whether sky enables when walking follows, add to disable man-hour and follow, whether its hollow using to leapfrog when moving mainly is controlled at processing a figure sky and moves in next graphic procedure, when lifting on Z axis to a half height, whether XY axle starts empty shifting, this function is mainly used for saving the time loss that Z axis knee-action brings, to reach to shorten the purpose of idle running traveling time.Sky walks the simple orbiting motion of the gas that mainly do not open the light not open, only X, the motion of Y-axis, but in this case we cannot see laser head (Z axis) follow action, if choosing this so just to see when sky is walked and follow action, and then more determine that whether orbiting motion is correct.Whereas if need not follow by Height-adjusting device during cutting, we can choose disabling and follow, and allow cutting-height be maintained at level altitude, facilitate our cutting non-metal sheet material.Present invention also offers and SPL/Bezier curve is converted to fitting precision when straight line is processed, we term it curve fitting precision.For meeting sheet material corner cut and clout cutting, invention increases the parameter of " following outside plate ", solve the problem not having sheet material to follow, cutter can be entered outside sheet material when reality is cut, cutter is gone out from sheet edge, this kind of cutting mode starts to add man-hour, if there is no sheet material below laser head, laser head can be rested on a safe altitude by system, once motor process detecting, sheet material will be followed immediately, carry out the cutting of sheet material, when going out limit, once detect and not having plate with laser head can rise to safe altitude immediately, it is prevented that prick the phenomenon of head.
After software is installed, have an XML file under installation directory and store PLC acquiescence process, these processes almost cover all processes can used in cut, the corresponding title specified of each process, are indexed by identical title when performing process operation.PLC sequential editor provides ten various procedures, including starting processing, stop processing, the processes such as various cut mode, the ineffective activity that traditional fixation procedure is brought has been broken in this design, we will be likely to the cutting method used and process is supplied to user in self-defining mode in laser cutting system, user is by adding, delete, the upper and lower every single stepping of button editor, not only facilitating client to revise debugging, different execution sequences and parameter and can also meet the demand of varying environment, the combination always having one group of PLC process is to complete the processing needed for client.PLC process is the template of laser cutting system processing action, all of processing action performs in strict accordance with PLC process order from top to bottom, fully meet What You See Is What You Get, the execution client of either step all can get information about on the control panel, this design facilitates the place that client just can pinpoint the problems in the course of processing, without etc. machine after be analyzed search, once pinpoint the problems, user can suspend immediately, entering figure layer dialog box amendment parameter, the follow-up trade union that adds performs according to the parameter of new amendment.Referring to Fig. 7 and Fig. 8, describe the parameter of direct cutting, progressive perforation, three grades of PLC processes bored a hole and correspondence in detail.Starting to add man-hour, if current layer parameter uses direct cutting, the direct cutting process that now will call PLC process performs, including opening laser, open gas, follow cutting-height, the frequency of cut is set, power, laser form, can call the pass laser process of PLC after having cut, including closing light, close gas, laser head the action such as lift.Referring to Fig. 6, enter PLC editing interface, select to need the process of editor, carried out the editor of process by " interpolation ", " deletion ", " upwards " on interface, " downwards " button, other processes after having edited, can be selected to continue editor.Once after process amendment, when switching to other processes, whether system can be pointed out and the content of amendment be preserved.After editor terminates, preserve and exit this interface.In view of the stringency that PLC process performs, inappropriate amendment may result in serious consequence, and the editor of PLC process We conducted cryptoguard, it is ensured that each amendment is all the editor through professional person.
The interface of figure layer parameter can not show different options on an equal basis according to the laser instrument difference used, gas piping Height-adjusting device differently configured, use.The present invention is prefixed four kinds of perforation means, it is direct cutting respectively, segmentation is bored a hole, progressive perforation and three grades of perforation, except directly cutting, remaining hole pattern all needs the support of BCS100 Height-adjusting device to realize, the plate cutting of different mode correspondence different-thickness, the detailed process of four kinds of hole pattern execution is by PLC process control set in advance.Referring to Fig. 7, following directly after cutting-height as direct cutting mode starts to add man-hour laser head, then external equipment opens the light out gas, arranges the frequency of cutting, power and laser form, and this mode is mainly used in carbon steel and the stainless steel cut of 1-2mm；Progressive perforation means starts to add man-hour laser head can first follow perforation height, then laser is opened, air pressure during perforation is set, gas, frequency, power and laser form, perform perforation time delay, ensure have time enough to punch, cutting-height can be dropped to certain speed by laser head after having bored a hole, use when cutting is now set again air pressure, gas, frequency, power and laser form, perform ventilation time delay, guarantee gas circuit has been switched completely to the gas that cutting is required, the cutting of reality of then just advancing, this mode is mainly used in the carbon steel of 3-5mm and the stainless steel cut of 3-4mm, if rustless steel can also use the mode that segmentation is bored a hole.Three grades of perforation are mainly used for the cutting of slab, being further added by one-level pop perforation in progressive hole pattern, the progressive perforation of general cooperation uses together, and concrete execution process is: laser head first drops to Blasting height, open laser, air pressure during explosion, gas, frequency are set, power and laser form, then drop to perforation height with progressive speed, then perform the cutting mode of progressive perforation, be mainly used in 6mm and the cutting of above carbon steel.Wherein progressive perforation procedure is basically identical with the process of segmentation perforation, difference is in that if " segmentation perforation " process exists " progressive perforation " this step, so will highly dropping to cutting-height from perforation in a stepwise fashion in practical implementation, we claim this process otherwise to bore a hole for segmentation for " progressive perforation ".On these four kinds of cut mode, present invention also offers first bores a hole cuts afterwards, and band film cuts, the function of fixed height cutting.
In high power laser cutting process, suitably apply the technology cut afterwards of first boring a hole and can be obviously improved efficiency, it is to avoid burning.What is called is first bored a hole and is cut afterwards, it is simply that all perforation procedure on whole plate performed in advance, then later performs cutting process again.First bore a hole to cut afterwards and be advantageous in that: (1): shorten the aperture time, raising efficiency.In perforation procedure, the height of nozzle is apparently higher than cutting process, but in order to ensure cut quality and efficiency, focal position regulates only in cutting desired position, and therefore, when perforation, focus just must not in best position, and the time of perforation is also just longer.If adopting the mode cut afterwards of first boring a hole, first focus can be adjusted the optimum position of perforation, after having bored a hole, machine being suspended, then focal position is adjusted the position that cutting is required.So, the aperture time can shorten more than half, substantially increases the cutting efficiency of entirety.(2): avoid burning.In slab perforation procedure, around drilling point, forming heat focus on, and if then cut, arising that burn-off phenomenon.Adopt after first boring a hole after cutting mode, when later cutting again, dispel the heat with the sufficient time, avoid burn-off phenomenon.It is mainly used for the plate surface cutting with film with film cutting, film body is different from board quality, corresponding technique is different, therefore cut the parameter that film can use two sets different from actual plate cutting and cut, this design is advantageous in that when cutting film will not destroy sheet material, and don't affect the film body outside sheet material, actual cutting process can first spend film parameters and be removed by the pad pasting on surface, then be made directly the cutting of sheet material with figure layer parameter, concrete plate cutting mode with scheme in layer parameter arrange perform.Fixed height cutting is mainly used in the sheet material of cutting non-metal material, such as acryl plates etc, the actual cutting of this kind of sheet material requires that the aspect ratio of cutting is higher, if follow directly after the final effect that can produce shake and affect cutting at higher height, so laser head can only rest on fixing height to cut, we term it fixed height cutting, during actual cutting we can allow laser head first follow sheet material then again on lift certain height, follow highly plus the height that above degree of raising is exactly the fixed high cutting that we are arranged, this design can meet the cutting of major part nonmetal plate, as long as sheet material can follow (surface is electrically charged), can cut in this way.
Providing some motor control parameters in global parameter to be available for adjusting, adjusting these parameters will on the stationarity of mechanical movement and processing effect, efficiency generation impact.The kinematic parameter main region of the present invention is divided into empty shifting, processing, examines limit, turns round.Related to actual path motion parameter we use process velocity；Walk and when frame determines actual cut lengths, use inspection limit speed；Each axle uses sky to move speed when empty shifting movement；Turn round the speed used by speed and the 10 millimeters of circle of reference speed decisions of turning round during motion.This parameter controlling to adjust correspondence under different situations that the design that various speed parameters segment is advantageous in that, but not adjust a parameter and affect whole processing.Sky generally can be moved the as far as possible big of speed setting by actual cutting in the scope that mechanical energy is born, make every effort to reduce overall clipping time；Inspection limit is required of the size determining that an actual path needs, and its speed is generally below empty shifting speed, higher than process velocity.The present invention uses S shape acceleration and deceleration, S shape acceleration and deceleration have acceleration and convert continuous, moment variations continuous print feature, are a kind of flexible acceleration and deceleration algorithms, eliminate the velocity jump that T-shaped speed is brought, it is more suitable for Serve Motor Control, to reach to control more stably and better processing effect.Referring to Fig. 9, the slope of S shape acceleration and deceleration curves rate curve is acceleration, the slope of accelerating curve is acceleration, the setting of acceleration does not have upper limit control, when acceleration convergence infinity, S shape acceleration and deceleration are equivalent to T-shaped acceleration and deceleration, and the setting of acceleration is considered as the composite factor such as motor characteristic and lathe load, can't pursue speed simply.The acceleration that turns round controlling to turn round is for limiting the speed of turning round more than 90 degree of turnings, and the tarnsition velocity less than or equal to 90 degree is reduced to zero without exception；10 millimeters of circle of reference speed are mainly used in the speed of restriction small arc-shaped and little curvature figure.
In high speed fibre or CO2 cut occasion, use, with speed power adjustments, the cut quality of optimal corner is had bigger help, can effectively avoid the heat affecting that corner causes due to acceleration and deceleration the phenomenon preventing burning.Referring to that cutting power will change with velocity variations in cutting process with speed power adjustments, concrete changing value is determined by power curve.As shown in Figure 10: the abscissa of power is cutting speed, vertical coordinate is cutting power, and unit is percentage ratio.Can reflect that actual power needs to drop to a few percent of cutting power when actual motion to corner speed drops to a few percent of target velocity by this table.If laser power 500W sets cutting speed as 100mm/s, peak point current 90%, cutting power 80%, then when actual cutting speed drops to 40mm/s, namely during upper figure red-label point, the power of laser instrument is:
Laser power X peak point current (percentage ratio) X cutting power (percentage ratio) X is with speed power adjustments (percentage ratio)=500WX90%X80%X62.43%=223.75W.
But no matter how power declines, and all without the minimum lower than a prior setting, is usually 10%, i.e. 50W.
Claims (10)
1. the cutting technique modularized processing method based on laser cutting software, it is characterized in that: adopt CypCut laser cutting software to carry out figure layer editor, then carrying out plate cutting process, the process step of described figure layer editor is as follows: (1) enters editor's figure layer dialog box；(2) global parameter structure is set up；(3) global parameter structure is preserved；(4) figure layer parameter structure is set up；(5) carry out figure layer parameter to pre-set；(6) figure layer parameter is preserved；(7) figure layer parameter structure is preserved to material depot；(8) exit；Described set up global parameter structure be respectively equipped with set up kinematic parameter storehouse, peripheral hardware controls parameter, sets up PLC procedure library, is respectively provided with empty shifting, inspection limit, 10mm circle of reference speed of turning round in described kinematic parameter storehouse；Control parameter is respectively provided with the air pressure of fixed fire parameter, air blowing at peripheral hardware；PLC procedure library is edited PLC process；Described figure layer parameter structure of setting up is respectively equipped with and sets up cut mode module, sets up cutting parameter module, sets up power curve module；Described sets up cut mode module for setting up directly cutting, segmentation perforation, progressive perforation, four kinds of cut mode of three grades of perforation respectively；Described set up cutting parameter module for setting up cutting-height variable, cutting power variable, cutting frequency variable, cutting speed variable, cutting pressure variation, cutting gas variable respectively, open the light delay variable；Described set up power curve module be import preset adjust curve with speed power；Described PLC process includes direct cutting process, segmentation perforation procedure, progressive perforation procedure, three grades of perforation procedure, pass laser processes.
2. a kind of cutting technique modularized processing method based on laser cutting software according to claim 1, it is characterised in that: described figure layer dialog box is handled as follows step: (1) enters figure layer dialog box；(2) user arranges global parameter at global parameter structural interface；(3) the figure layer parameter of concrete sheet material is set in figure layer parameter structure；(4) judge whether material depot exists the cutting parameter of corresponding sheet material；(5) cutting parameter of if there is no corresponding sheet material, then returning (3rd) step " arranging the figure layer parameter of concrete sheet material in figure layer parameter structure ", if there is the cutting parameter of corresponding sheet material, then reading the cutting parameter of corresponding sheet material from material depot；(6) preserve the cutting parameter of sheet material, exit figure layer dialog box.
3. a kind of cutting technique modularized processing method based on laser cutting software according to claim 2, it is characterized in that: the cutting process of described sheet material adopts following steps: (1) inspection limit: use the inspection limit speed in global parameter, it is determined that the size of cutting；(2) sky is walked: the cutting parameter sky in use figure layer parameter is walked, and the gas that do not open the light not open moves graphics track once；(3) read the cutting speed in the kinematic parameter of global parameter and figure layer, generate geometric locus；(4) cut mode in figure layer parameter is read；(5) in PLC procedure library, corresponding PLC process is read；(6) single step performs each step action in PLC process from top to bottom；(7) start to carry out cut by orbiting motion；(8) judging whether that all pattern cut complete, be then read in PLC procedure library, close laser process, perform to close laser action, otherwise current Graphics has cut, and sky moves on to the starting point of next figure；(9) read in PLC procedure library, close laser process, perform to close laser action；(10) process finishing, returns to process finishing anchor point.
4. a kind of cutting technique modularized processing method based on laser cutting software according to claim 3, it is characterised in that: described single step performs PLC process for carrying out following steps: (1) determines whether peripheral hardware action；(2) it is peripheral hardware action, then carries out peripheral hardware test, then open or close peripheral hardware, then terminate；It not peripheral hardware action, then perform parameter and arrange；(3) judge that parameter belongs to figure layer parameter；(4) if belonging to figure layer parameter, then reading corresponding figure layer parameter, if being not belonging to figure layer parameter, then reading corresponding global parameter；(5) relevant parameter is performed；(6) terminate.
5. a kind of cutting technique modularized processing method based on laser cutting software according to claim 4, it is characterized in that: described peripheral hardware test includes laser instrument test and gas test, is handled as follows step when carrying out laser instrument test: (11) fixed fire: read the fixed fire parameter in global parameter；(12) can open the light no；(13) can open the light, then terminate, it is impossible to open the light, then check that peripheral hardware connects, return again to " fixed fire " step；It is handled as follows step: (21) blow: read the acquiescence air pressure in global parameter, open gas when carrying out gas test；(22) gas can be opened no；(23) gas can not be opened, then check that peripheral hardware connects, be then back to " air blowing " step；Gas can be opened then terminate.
6. a kind of cutting technique modularized processing method based on laser cutting software according to claim 1, it is characterised in that: described editor's PLC process is for being handled as follows step: (1) enters PLC process editing interface；(2) PLC is selected to need the process of editor；(3) add or delete PLC process: selecting the step needing to perform to double-click or click in the left list and add button, insert a PLC process, now show on the right side of interface already inserted into process, click delete button delete process, click upwards down button set-up procedure execution order；(4) edited no；(5) do not have editor to complete, then return " add or delete PLC process " step；Edit, preserved the process of editor；(6) continue to edit other processes no；(7) continue editor, then return " selecting PLC to need the process of editor "；Do not continue editor, then terminate to exit.
7. a kind of cutting technique modularized processing method based on laser cutting software according to claim 1, it is characterised in that: described direct cutting process is sequentially carried out and processes step as follows: (1) follows cutting-height；(2) gas is opened；(3) cutting air pressure is set；(4) gas time delay is opened；(5) cutting frequency is set, cutting power is set, cutting laser form is set；(6) open laser, time delay of opening the light.
8. a kind of cutting technique modularized processing method based on laser cutting software according to claim 1, it is characterised in that: described segmentation perforation procedure is sequentially carried out and processes step as follows: (1) follows perforation height；(2) stop；(3) gas is opened；(4) perforation air pressure is set；(5) gas time delay is opened；(6) point cycle is set, punctured power is set, perforation laser form is set；(7) laser, perforation time delay are opened；(8) cutting-height is followed；(9) cutting air pressure is set；(10) ventilation time delay；(11) cutting frequency is set, cutting laser form is set, cutting power is set；(12) open the light time delay.
9. a kind of cutting technique modularized processing method based on laser cutting software according to claim 1, it is characterised in that: described progressive perforation procedure is sequentially carried out and processes step as follows: (1) follows perforation height；(2) stop；(3) gas is opened；(4) perforation air pressure is set；(5) gas time delay is opened；(6) point cycle is set, punctured power is set, perforation laser form is set；(7) laser, perforation time delay are opened；(8) progressive perforation；(9) cutting-height is followed；(10) cutting air pressure is set；(11) ventilation time delay；(12) cutting frequency is set, cutting laser form is set, cutting power is set；(13) open the light time delay.
10. a kind of cutting technique modularized processing method based on laser cutting software according to claim 1, it is characterised in that: three grades of described perforation procedure are sequentially carried out and process step as follows: (1) follows pop perforation height；(2) gas is opened；(3) explosion air pressure is set；(4) gas time delay is opened；(5) Blast frequency is set, explosion power is set, explosion laser form is set；(6) laser, blasting time are opened；(8) progressive perforation；(9) next stage perforation is performed according to the hole pattern of next stage.
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