CN109909626A - A kind of laser cutting method of band - Google Patents
A kind of laser cutting method of band Download PDFInfo
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- CN109909626A CN109909626A CN201910309986.3A CN201910309986A CN109909626A CN 109909626 A CN109909626 A CN 109909626A CN 201910309986 A CN201910309986 A CN 201910309986A CN 109909626 A CN109909626 A CN 109909626A
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Abstract
The laser cutting method of band of the present invention, it include: the strip edge starting point coordinate for acquiring the first rectangle process-cycle and its second adjacent rectangle process-cycle, and the longitudinal machining allowance of band is carried out to the strip edge starting point coordinate of the first rectangle process-cycle and is compensated, it determines the machining starting point coordinate and angle of eccentricity of the first rectangle process-cycle, then is cut by laser；The strip edge starting point coordinate of third rectangle process-cycle is acquired, and the longitudinal machining allowance of band is carried out to the strip edge starting point coordinate of the second rectangle process-cycle and is compensated, determines the machining starting point coordinate and angle of eccentricity of the second rectangle process-cycle；Judge whether the first and second rectangle process-cycles intersected in machining area, when being, then the machining allowance in band transverse direction is carried out to the machining starting point coordinate of the second rectangle process-cycle and compensated, then be cut by laser；And so on, Continuous maching is until terminate.The method increase processing efficiency, stock utilization and process equipment service life.
Description
Technical field
The present invention relates to laser cutting technique fields, and in particular to a kind of laser cutting method of band.
Background technique
Band will make band fault-free transport in continuous production and processing, and it is to compare that edge, which keeps neat, when batching
Difficult, and with the improvement of process equipment, unit speed improves year by year, and the band of machine-shaping is intended to and Bao Youkuan.?
When laser processes band, since band section is uneven, flattening roller packet size shape is irregular, flattens roller group pressure not
Uniformly, feeding roller group is installed many factors such as not parallel, roller group surface abrasion and is influenced, and into the band of laser processing area, leads to
Often there is " sideslip " phenomenon.But laser requires the straightness for being sent into band particularly harsh in dynamic Continuous maching on band.
Existing band laser cutting, because that can not adapt to automatically band " sideslip ", laser head is easy to happen collision and shuts down, workpiece to be machined
Profile is easy missing, eventually leads to that processing efficiency is low, and stock utilization difference and process equipment service life are short.
Summary of the invention
The technical problem to be solved in the present invention is that: in view of the deficiencies of the prior art, provide a kind of laser cutting of band
Method overcomes the prior art in band laser cutting because can not adaptively processing efficiency is low, material caused by band sideslip
The problems such as utilization rate difference and short process equipment service life.
And technical solution used by solving to solve above-mentioned technical problem is: providing a kind of laser cutting side of band
The laser cutting method of method, the band includes:
Step A, band is divided into multiple rectangle process-cycles, acquires the first rectangle process-cycle and its adjacent second
The strip edge starting point coordinate of rectangle process-cycle, and band is carried out to the strip edge starting point coordinate of the first rectangle process-cycle
Longitudinal machining allowance compensation, determines the machining starting point coordinate and angle of eccentricity of the first rectangle process-cycle, then to first
The rectangle process-cycle is cut by laser；
Step B, the strip edge starting point coordinate of third rectangle process-cycle is acquired, and to the band of the second rectangle process-cycle
Edge edge starting point coordinate carries out the longitudinal machining allowance compensation of band, determines that the machining starting point of the second rectangle process-cycle is sat
Mark and angle of eccentricity；
Step C, according to the machining starting point coordinate and angle of eccentricity of the first rectangle process-cycle and the second rectangle process-cycle,
Judge whether the current two neighboring rectangle process-cycle intersects in machining area, when being, then to the second rectangle process-cycle
Machining starting point coordinate carry out the machining allowance compensation in band transverse direction, then the second rectangle process-cycle was cut by laser；
And so on, Continuous maching is until terminate.
Still more preferably scheme of the invention is: the step A is specifically included:
Step A1, it is sat according to the strip edge starting point of the first rectangle process-cycle and its second adjacent rectangle process-cycle
Mark, determines the angle of eccentricity of the first rectangle process-cycle；
Step A2, the longitudinal machining allowance of band is carried out to the strip edge starting point coordinate of the first rectangle process-cycle to mend
It repays, determines the machining starting point coordinate of the first rectangle process-cycle；
Step A3, according to the machining starting point coordinate and angle of eccentricity of the first rectangle process-cycle, is processed to the first rectangle week
Phase is cut by laser.
Still more preferably scheme of the invention is: the step B is specifically included:
Step B1, it according to the strip edge starting point coordinate of third rectangle process-cycle and the second rectangle process-cycle, determines
The angle of eccentricity of second rectangle process-cycle out；
Step B2, the longitudinal machining allowance of band is carried out to the strip edge starting point coordinate of the second rectangle process-cycle to mend
It repays, determines the machining starting point coordinate of the second rectangle process-cycle.
Still more preferably scheme of the invention is: the step C further include:
When currently the two neighboring rectangle process-cycle is non-intersecting in machining area, is then directly processed to the second rectangle week
Phase is cut by laser.
Still more preferably scheme of the invention is: the step C is specifically included:
Step C1, according to the machining starting point coordinate of the first rectangle process-cycle and its second adjacent rectangle process-cycle,
The length and width value of angle of eccentricity and each known rectangle process-cycle determines two rectangle process-cycles adjacent two
The equation of straight line；
Step C2, simultaneous and the equations of two straight lines is solved, if without solution, the two neighboring rectangle processing week
Phase is parallel and non-intersecting, then is directly cut by laser to the second rectangle process-cycle；
If the equation of step C3, described two straight lines has solution, judge whether intersection point is located at two rectangle process-cycles
In machining area, when being, the machining allowance in band transverse direction is carried out to the machining starting point of the second rectangle process-cycle and is compensated, then
Second rectangle process-cycle was cut by laser, when no, then directly the second rectangle process-cycle was cut by laser.
Still more preferably scheme of the invention is: the first rectangle process-cycle of the acquisition and its second adjacent rectangle
The step of strip edge starting point coordinate of process-cycle, specifically includes:
The strip side genesis of the first rectangle process-cycle and its second adjacent rectangle process-cycle are acquired using sensor
Point position；Then, the strip edge starting point coordinate as corresponding to digital control system record strip side genesis point position.
Still more preferably scheme of the invention is: the sensor is that photoelectric sensor, laser sensor and capacitor pass
One of sensor.
Still more preferably scheme of the invention is: band characteristics of motion of sideslip in laser cutting process follows
The sine curve of periodic wobble.
Still more preferably scheme of the invention is: the frequency and band of band sideslip in laser cutting process
Relational expression between movement velocity are as follows:
F=Kv/100
Wherein, v is the movement velocity of band；K is correction factor, K=1~1.2；F is the frequency of band sideslip.
The present invention also provides a kind of laser cutting system of band, the laser cutting system including band includes:
First acquisition and compensating unit, for band to be divided into multiple rectangle process-cycles, acquisition the first rectangle processing
The strip edge starting point coordinate in period and its second adjacent rectangle process-cycle, and to the strip side of the first rectangle process-cycle
Edge starting point coordinate carries out band longitudinal machining allowance compensation, determine the first rectangle process-cycle machining starting point coordinate and
Angle of eccentricity, then the first rectangle process-cycle was cut by laser；
Second acquisition and compensating unit, for acquiring the strip edge starting point coordinate of third rectangle process-cycle, and to the
The strip edge starting point coordinate of two rectangle process-cycles carries out the longitudinal machining allowance compensation of band, determines that the second rectangle adds
The machining starting point coordinate and angle of eccentricity in work period；
Judging unit is calculated, for the machining starting point coordinate according to the first rectangle process-cycle and the second rectangle process-cycle
And angle of eccentricity, judge whether the current two neighboring rectangle process-cycle intersects in machining area, when being, then to the second square
The machining starting point coordinate of shape process-cycle carries out the machining allowance compensation in band transverse direction, then carries out to the second rectangle process-cycle
Laser cutting；And so on, Continuous maching is until terminate.
The beneficial effects of the present invention are by the arrangement of periodic adjust automatically rectangle process-cycle, i.e., periodically
Adjustment laser cutting band machining starting point coordinate and angle of eccentricity so that dynamic Laser processing band during, processing
Starting point coordinate and angle of eccentricity can adapt to band sideslip automatically, avoid in the prior art due to can not adapt to band sideslip automatically
Lead to problems such as laser head collision shut down, workpiece to be machined profile missing, greatly improve processing efficiency, stock utilization and
The process equipment service life.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the flow chart of the laser cutting method of band of the present invention；
Fig. 2 is the characteristics of motion schematic diagram of band sideslip of the invention；
Fig. 3 is band sideslip schematic diagram of the invention；
Rectangle process-cycle arrangement schematic diagram when Fig. 4 is laser cutting band of the invention；
Fig. 5 is the specific flow chart of the step S100 of presently preferred embodiments of the present invention；
Fig. 6 is that the machining starting point coordinate of rectangle process-cycle of the invention and angle of eccentricity determine model schematic；
Fig. 7 is the specific flow chart of the step S200 of presently preferred embodiments of the present invention；
Fig. 8 is the specific flow chart of the step S300 of presently preferred embodiments of the present invention.
Specific embodiment
Now in conjunction with attached drawing, elaborate to presently preferred embodiments of the present invention.
As shown in Figure 1, the laser cutting method of the band includes:
Step S100, band is divided into multiple rectangle process-cycles, acquires the first rectangle process-cycle and its adjacent
The strip edge starting point coordinate of second rectangle process-cycle, and the strip edge starting point coordinate of the first rectangle process-cycle is carried out
The longitudinal machining allowance compensation of band, determines the machining starting point coordinate and angle of eccentricity of the first rectangle process-cycle, then right
First rectangle process-cycle was cut by laser；
Step S200, the strip edge starting point coordinate of third rectangle process-cycle is acquired, and to the second rectangle process-cycle
Strip edge starting point coordinate carry out band longitudinal machining allowance compensation, determine that the processing of the second rectangle process-cycle rises
Point coordinate and angle of eccentricity；
Step S300, according to the machining starting point coordinate and offset angle of the first rectangle process-cycle and the second rectangle process-cycle
Degree, judges whether the current two neighboring rectangle process-cycle intersects in machining area, when being, then processes week to the second rectangle
The machining starting point coordinate of phase carries out the machining allowance compensation in band transverse direction, then carries out laser to the second rectangle process-cycle and cut
It cuts；And so on, Continuous maching is until terminate.
The present invention is by the arrangement of periodic adjust automatically rectangle process-cycle, i.e., periodically adjustment is cut by laser band
The machining starting point coordinate and angle of eccentricity of material, so that during dynamic Laser cutting of web, machining starting point coordinate and offset angle
Degree can adapt to band sideslip automatically, avoid causing laser head collision to be stopped because that can not adapt to automatically band sideslip in the prior art
The problems such as machine, workpiece to be machined profile missing, greatly improve processing efficiency, stock utilization and process equipment service life.
Wherein, relational expression of the band between the frequency of sideslip in laser cutting process and the movement velocity of band
Are as follows:
F=Kv/100
V is the movement velocity of band；K is correction factor, K=1~1.2；F is the frequency of band sideslip.But in practical life
In production, the movement velocity of general band can be in 10m/min hereinafter, so f is especially small, for a low frequency signal.The sideslip of band is not
It is only related with the movement velocity of band, also there are much relations with the thickness of band, thickness of strip is thinner, and the frequency of sideslip is bigger,
Amplitude is bigger.
As shown in Fig. 2, band characteristics of motion of sideslip in laser cutting process follows the sine of periodic wobble
Curve.Abscissa S is ribbon motion distance in figure, and ordinate R is band sideslip amplitude.Each in Fig. 2 is linear to represent one kind
The band of thickness, width, in the sideslip amplitude of movement certain distance S, they are all contained in the near sinusoidal that amplitude peak is R
Inside surround the area.Therefore, the characteristics of motion of band sideslip follows the sine curve of periodic wobble, and finds this rule,
It is the key that laser cutting method described in determining the present embodiment.
As shown in figure 3, laser is on band when processing, generally using a rectangle as a process-cycle, i.e. band quilt
It is divided into multiple rectangle process-cycles.Since the characteristics of motion of band sideslip follows the sine curve of periodic wobble, once pendulum
When width is more than the machining allowance of laser processing band, laser head is easy to collide or be machined directly to the support bar for transporting band
Outside band, lead to equipment damage, shutdown, the adverse effect of machining profile missing.In Fig. 3, from left figure to right figure, show
The process and form of band sideslip in the feeding process.
As shown in figure 4, rectangle process-cycle arrangement when being cut by laser band for the present invention.Band of the present invention swashs
Light cutting method is intended to the sideslip with band, the arrangement of periodic adjust automatically rectangle process-cycle, thus processed
Cheng Zhong, the longitudinal direction of band remain certain machining allowance, improve stock utilization, processing efficiency and process equipment service life.
It realizes the arrangement of periodic adjust automatically rectangle process-cycle, then must periodically adjust laser cutting band
Machining starting point coordinate and angle of eccentricity so that during dynamic Laser cutting of web, machining starting point coordinate and angle of eccentricity
Band sideslip can be adapted to automatically.
Further, as shown in figure 5, the step S100 is specifically included:
Step S110, according to the strip edge starting point of the first rectangle process-cycle and its second adjacent rectangle process-cycle
Coordinate determines the angle of eccentricity of the first rectangle process-cycle；
Step S120, the longitudinal machining allowance of band is carried out to the strip edge starting point coordinate of the first rectangle process-cycle
Compensation, determines the machining starting point coordinate of the first rectangle process-cycle；
Step S130, according to the machining starting point coordinate and angle of eccentricity of the first rectangle process-cycle, the first rectangle is processed
Period is cut by laser.
It is illustrated below:
As shown in fig. 6, the machining starting point coordinate and angle of eccentricity for the rectangle process-cycle determine model schematic.Described
The strip edge starting point of one rectangle process-cycle is A point, and the strip edge starting point of the second rectangle process-cycle adjacent thereto is B
Point, the strip edge starting point of third rectangle process-cycle are C point.It is assumed that the machining area of band and band is placed in first quartile
It is interior.Firstly, acquisition A point coordinate is A (x1,y1), B point coordinate is B (x2,y2).In the strip edge to the first rectangle process-cycle
Starting point A carries out the longitudinal machining allowance of band and compensates d1Afterwards, the machining starting point of the first rectangle process-cycle is determined as D, coordinate
For D (x1,y1-d1)；By the coordinate of A, B two o'clock, the angle of eccentricity of the first rectangle process-cycle can be obtained are as follows:
Thus, the machining starting point coordinate that is, can determine that for the first rectangle process-cycle is D (x1,y1-d1), angle of eccentricity
For θ1.The long L of rectangle process-cycle1, width L2For it is known that therefore being risen according to the processing for the first rectangle process-cycle determined
Point coordinate and angle of eccentricity, can be cut by laser for the first rectangle process-cycle.
Further, as shown in fig. 7, the step S200 is specifically included:
Step S210, according to the strip edge starting point coordinate of third rectangle process-cycle and the second rectangle process-cycle, really
Make the angle of eccentricity of the second rectangle process-cycle；
Step S220, the longitudinal machining allowance of band is carried out to the strip edge starting point coordinate of the second rectangle process-cycle
Compensation, determines the machining starting point coordinate of the second rectangle process-cycle.
With reference to Fig. 6, similarly, before being cut by laser to the second rectangle process-cycle, acquisition C point coordinate is C (x3,y3)。
The longitudinal machining allowance of band, which is carried out, in the strip edge starting point B to the second rectangle process-cycle compensates d1Afterwards, the second rectangle
The machining starting point of process-cycle is determined as G, and coordinate is G (x2,y2-d1)；By the coordinate of B, C two o'clock, it may be determined that go out the second rectangle and add
The angle of eccentricity in work period is θ2。
Further, the step S300 further include:
When currently the two neighboring rectangle process-cycle is non-intersecting in machining area, is then directly processed to the second rectangle week
Phase is cut by laser.
Further, as shown in figure 8, the step S300 is specifically included:
Step S310, it is sat according to the machining starting point of the first rectangle process-cycle and its second adjacent rectangle process-cycle
Mark, angle of eccentricity and each known rectangle process-cycle length and width value, determine two rectangle process-cycles it is adjacent two
The equation of straight line；
Step S320, simultaneous and the equations of two straight lines is solved, if without solution, the two neighboring rectangle processing
Period is parallel and non-intersecting, then is directly cut by laser to the second rectangle process-cycle；
If the equation of step S330, described two straight lines has solution, judge whether intersection point is located at two rectangle process-cycles
Machining area in, when being, the machining allowance in band transverse direction is carried out to the machining starting point of the second rectangle process-cycle and is compensated,
The second rectangle process-cycle was cut by laser again, when no, then directly the second rectangle process-cycle was cut by laser.
With reference to Fig. 6, it is known that the long L of rectangle process-cycle1, width L2, according to D point coordinate D (x1,y1-d1) and angle of eccentricity be
θ1, acquire E point coordinate E (x1+L2cosθ1,y1-d1±L2sinθ1), F point coordinate F (x1+L2cosθ1±L1sinθ1,y1-d1±
L2sinθ1+L1cosθ1).Similarly, according to G point coordinate G (x2,y2-d1), acquire H point coordinate H (x3±L1sinθ2,y3-d1+L1cos
θ2).Wherein, exist ± be have due to angle of eccentricity just have it is negative.
Straight line L can be obtained by E point and F pointEFGeneral equation formula, straight line L can be obtained by G point and H pointGHGeneral equation formula, connection
Two equations are found, solving equations:
1) if equation group is without solution, the two neighboring rectangle process-cycle is parallel and non-intersecting, then directly to the second square
The shape process-cycle is cut by laser；
If 2) equation group has solution, the two neighboring rectangle process-cycle must have an intersection point O (xO,yO):
1. if yO<yFOr yO<yHWhen, then the two neighboring rectangle process-cycle is non-intersecting in band machining area, can
To be directly cut by laser to the second rectangle process-cycle.
2. if yO≥yFOr yO≥yHWhen, then the two neighboring rectangle process-cycle has one in band machining area
Intersection point.To ensure that the two neighboring rectangle process-cycle is non-intersecting in band machining area, then need to the second rectangle process-cycle
Machining starting point G carry out band transverse direction on machining allowance compensate d2Afterwards, then to the second rectangle process-cycle it is cut by laser.
Wherein, the machining starting point coordinate of the second rectangle process-cycle is G ' (x after compensation2+d2,y2-d1)。
Further, in the step s 100, the first rectangle process-cycle and its second adjacent rectangle process-cycle are acquired
Strip edge starting point coordinate the step of specifically include:
The strip side genesis of the first rectangle process-cycle and its second adjacent rectangle process-cycle are acquired using sensor
Point position；Then, the strip edge starting point coordinate as corresponding to digital control system record strip side genesis point position.
Wherein, the sensor is one of photoelectric sensor, laser sensor and capacitance sensor.The choosing of sensor
It selects and depends primarily on required precision.
The laser cutting method of band of the present invention can realize continuous continual, long-time in band process
The not processing of conversion materials, and process equipment is not damaged, greatly improve processing efficiency and process equipment service life；In process
In, constantly change process equipment coordinate system so that workpieces processing is complete and greatly improve stock utilization, reduces processing
Cost；In band process, the degree of automation of equipment is greatly improved without artificial centering without artificial loading.
The present invention also provides a kind of laser cutting systems of band, comprising:
First acquisition and compensating unit, for band to be divided into multiple rectangle process-cycles, acquisition the first rectangle processing
The strip edge starting point coordinate in period and its second adjacent rectangle process-cycle, and to the strip side of the first rectangle process-cycle
Edge starting point coordinate carries out band longitudinal machining allowance compensation, determine the first rectangle process-cycle machining starting point coordinate and
Angle of eccentricity, then the first rectangle process-cycle was cut by laser；
Second acquisition and compensating unit, for acquiring the strip edge starting point coordinate of third rectangle process-cycle, and to the
The strip edge starting point coordinate of two rectangle process-cycles carries out the longitudinal machining allowance compensation of band, determines that the second rectangle adds
The machining starting point coordinate and angle of eccentricity in work period；
Judging unit is calculated, for the machining starting point coordinate according to the first rectangle process-cycle and the second rectangle process-cycle
And angle of eccentricity, judge whether the current two neighboring rectangle process-cycle intersects in machining area, when being, then to the second square
The machining starting point coordinate of shape process-cycle carries out the machining allowance compensation in band transverse direction, then carries out to the second rectangle process-cycle
Laser cutting；And so on, Continuous maching is until terminate.
To sum up, the present invention periodically adjusts laser by periodic adjust automatically rectangle process-cycle arrangement
The machining starting point coordinate and angle of eccentricity of cutting of web so that during dynamic Laser cutting of web, machining starting point coordinate and
Angle of eccentricity can adapt to band sideslip automatically, avoid leading to laser head because that can not adapt to automatically band sideslip in the prior art
The problems such as collision is shut down, workpiece to be machined profile lacks, greatly improves processing efficiency, stock utilization and process equipment longevity
Life.
It should be understood that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, to ability
It for field technique personnel, can modify to technical solution illustrated in the above embodiments, or special to part of technology
Sign is equivalently replaced；And all such modifications and replacement, it should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of laser cutting method of band characterized by comprising
Step A, band is divided into multiple rectangle process-cycles, acquires the first rectangle process-cycle and its second adjacent rectangle
The strip edge starting point coordinate of process-cycle, and it is longitudinal to carry out band to the strip edge starting point coordinate of the first rectangle process-cycle
On machining allowance compensation, determine the machining starting point coordinate and angle of eccentricity of the first rectangle process-cycle, then to the first rectangle
Process-cycle is cut by laser；
Step B, the strip edge starting point coordinate of third rectangle process-cycle is acquired, and to the strip side of the second rectangle process-cycle
Edge starting point coordinate carries out band longitudinal machining allowance compensation, determine the second rectangle process-cycle machining starting point coordinate and
Angle of eccentricity；
Step C, according to the machining starting point coordinate and angle of eccentricity of the first rectangle process-cycle and the second rectangle process-cycle, judgement
Whether the current two neighboring rectangle process-cycle intersects in machining area, when being, then adds to the second rectangle process-cycle
Work starting point coordinate carries out the machining allowance compensation in band transverse direction, then is cut by laser to the second rectangle process-cycle；Successively
Analogize, Continuous maching is until terminate.
2. the laser cutting method of band according to claim 1, which is characterized in that the step A is specifically included:
Step A1, according to the strip edge starting point coordinate of the first rectangle process-cycle and its second adjacent rectangle process-cycle,
Determine the angle of eccentricity of the first rectangle process-cycle；
Step A2, the longitudinal machining allowance of band is carried out to the strip edge starting point coordinate of the first rectangle process-cycle to compensate,
Determine the machining starting point coordinate of the first rectangle process-cycle；
Step A3, according to the machining starting point coordinate and angle of eccentricity of the first rectangle process-cycle, to the first rectangle process-cycle into
Row laser cutting.
3. the laser cutting method of band according to claim 1, which is characterized in that the step B is specifically included:
Step B1, according to the strip edge starting point coordinate of third rectangle process-cycle and the second rectangle process-cycle, is determined
The angle of eccentricity of two rectangle process-cycles；
Step B2, the longitudinal machining allowance of band is carried out to the strip edge starting point coordinate of the second rectangle process-cycle to compensate,
Determine the machining starting point coordinate of the second rectangle process-cycle.
4. the laser cutting method of band according to claim 1, which is characterized in that the step C further include:
When current two neighboring rectangle process-cycle is non-intersecting in machining area, then directly to the second rectangle process-cycle into
Row laser cutting.
5. the laser cutting method of band according to claim 4, which is characterized in that the step C is specifically included:
Step C1, according to the machining starting point coordinate of the first rectangle process-cycle and its second adjacent rectangle process-cycle, biasing
The length and width value of angle and each known rectangle process-cycle determines two rectangle process-cycles adjacent two straight lines
Equation；
Step C2, simultaneous and the equations of two straight lines is solved, if the two neighboring rectangle process-cycle is flat without solution
It is capable and non-intersecting, then directly the second rectangle process-cycle was cut by laser；
If the equation of step C3, described two straight lines has solution, judge whether intersection point is located at the processing of two rectangle process-cycles
In region, when being, the machining allowance in band transverse direction is carried out to the machining starting point of the second rectangle process-cycle and is compensated, then to the
Two rectangle process-cycles were cut by laser, and when no, were then directly cut by laser to the second rectangle process-cycle.
6. the laser cutting method of band according to claim 1, which is characterized in that the first rectangle of acquisition processing week
The step of strip edge starting point coordinate of phase and its second adjacent rectangle process-cycle, specifically includes:
Point is played using the strip edge that sensor acquires the first rectangle process-cycle and its second adjacent rectangle process-cycle
It sets；Then, the strip edge starting point coordinate as corresponding to digital control system record strip side genesis point position.
7. the laser cutting method of band according to claim 6, which is characterized in that the sensor is photoelectric sensing
One of device, laser sensor and capacitance sensor.
8. the laser cutting method of band according to claim 1, which is characterized in that the band is in laser cutting process
The characteristics of motion of middle sideslip follows the sine curve of periodic wobble.
9. the laser cutting method of band according to claim 1, which is characterized in that the band is in laser cutting process
Relational expression between the frequency of middle sideslip and the movement velocity of band are as follows:
F=Kv/100
Wherein, v is the movement velocity of band；K is correction factor, K=1~1.2；F is the frequency of band sideslip.
10. a kind of laser cutting system of band characterized by comprising
First acquisition and compensating unit acquired for the first rectangle process-cycle for band to be divided into multiple rectangle process-cycles
And its strip edge starting point coordinate of the second adjacent rectangle process-cycle, and to the strip side genesis of the first rectangle process-cycle
Point coordinate carries out the longitudinal machining allowance compensation of band, determines machining starting point coordinate and the biasing of the first rectangle process-cycle
Angle, then the first rectangle process-cycle was cut by laser；
Second acquisition and compensating unit, for acquiring the strip edge starting point coordinate of third rectangle process-cycle, and to the second square
The strip edge starting point coordinate of shape process-cycle carries out the longitudinal machining allowance compensation of band, determines the second rectangle processing week
The machining starting point coordinate and angle of eccentricity of phase；
Judging unit is calculated, for according to the machining starting point coordinate of the first rectangle process-cycle and the second rectangle process-cycle and partially
Angle setting degree, judges whether the current two neighboring rectangle process-cycle intersects in machining area, when being, then adds to the second rectangle
The machining starting point coordinate in work period carries out the machining allowance compensation in band transverse direction, then carries out laser to the second rectangle process-cycle
Cutting；And so on, Continuous maching is until terminate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114713972A (en) * | 2022-02-24 | 2022-07-08 | 大族激光科技产业集团股份有限公司 | Laser head idle moving control method and device and readable storage medium |
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