CN104972228A - Edge finding method of laser cutting machine for panel - Google Patents
Edge finding method of laser cutting machine for panel Download PDFInfo
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- CN104972228A CN104972228A CN201510382169.2A CN201510382169A CN104972228A CN 104972228 A CN104972228 A CN 104972228A CN 201510382169 A CN201510382169 A CN 201510382169A CN 104972228 A CN104972228 A CN 104972228A
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- laser cutting
- cutting machine
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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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- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to an edge finding method of a laser cutting machine for a panel. The method sequentially includes the steps of detecting the panel through a detecting device of the laser cutting machine, and detecting the edge of the panel; detecting three points of the edge of the panel through the detecting device at the X coordinates and the Y coordinates of the laser cutting machine, wherein at least one point of the edge of the panel is detected at the X coordinates of the laser cutting machine, and at least one point of the edge of the panel is detected at the Y coordinates of the laser cutting machine; transmitting detected data back to a control unit through the detecting device to be recorded; calculating the detected data according to a set formula through the control unit to obtain original point coordinates and a rotating angle; after obtaining the original point coordinates and the rotating angle, controlling a workpiece coordinate system of the laser cutting machine to rotate to be overlapped with the panel through the control unit, and controlling a cutting head to move to the coordinate system original point of the panel through the control unit. It can be ensured that under the conditions that implement is easy and feasible and cost is low, time is further saved on the basis of an existing edge finding method.
Description
Background technology
Since nineteen sixty, the first in the world platform ruby laser came out, laser cutting technique through the research and development of nearly ISUZU company, extensive use, and shows powerful vitality.Cutting, punching, welding and material modification (heat treatment, melting and coating etc.) is successfully achieved at present in the commercial Application of laser.Wherein in the commercial Application of laser, the laser cutting of multikilowatt account for more than 70%, laser beam can obtain high energy density after focusing on, laser cutting parameter carries out numerically-controlled precise cutting by high-octane laser beam exactly, compared with other traditional cutting technique (mainly plasma and gas flame cuttiug), maximum difference has high speed, high accuracy and high-adaptability, laser cutting slot thin (0.2-0.3mm), little (the 0.2-0.4mm in heat affected area, sheet material is substantially indeformable), cutting end face quality good (fineness can reach 6.3-12.5), the advantages such as cutting noiselessness, process in addition without the need to mould, the processing method adopting complicated die die-cut can be replaced, greatly can shorten the production cycle and reduce production cost, most of function of punch press can be replaced.Laser can cut most metal and nonmetallic materials, rare metal etc. simultaneously.Because the machine adopts laser beam as cutter, there is good working ability for much high strength, dystectic metal and nonmetal material.Therefore laser cutting is more and more widely used in textile machine, railway locomotive, engineering machinery, automobile making, high and low voltage electrical equipment switch (power equipment), elevator manufacture, grain machinery, diamond saw blade, Machine Manufacture, case and cabinet, shipbuilding industry, weapon industry, Aero-Space, petroleum industry, agricultural machinery, medicine equipment, domestic Ge great scientific research institutions, package packing machine, woodworking machinery, household electrical appliance, kitchen tools manufacture, laser are amplification by hitting the light that radiation produces, are sightless, high-octane, one direction, relevant light.The industrial laser instrument for cutting and welding is mostly carbon dioxide laser, and optical maser wavelength is 10.6um.Laser cutting machine be laser instrument produce laser as a kind of cutter by outer light path light-conducting system, cause plate surface, sheet material cut and welds.A lot of industries of the national economy such as papermaking equipment, food machinery, building machinery, office equipment, metallic iron skill.Along with laser cutting is in the application of every field, along with the development of national economy, the requirement of user to plate cutting is more and more higher, and the sheet material of a lot of former flame, plasma, punch press processing is more and more replaced by laser cutting.From domestic market, there is the deficiencies such as price is high, service is not yet completely localized in high-end laser machine mainly imported product.Comprehensive above-mentioned situation, on the basis that existing numerical control laser cutter market is fully investigated, adopt new construction and new technology, develop a kind of laser machine that price is relatively cheap close to world level in performance for the device requirement meeting China and substitute import, the competitiveness tool improving national brand is of great significance.
Present numerical control laser cutter is in process, for saving loading and unloading lathes downtime, improve machine tool utilization rate, guarantee adds man-hour cutting head can not exceed plate face, the high-end laser cutting machine producer of part adds automatic tracing-edge function, as long as before processing sheet material is put on the table, do not need centering, limit function is sought in unlatching, by any two points of automatic inspection sheet edge to be processed thus the angle calculated between sheet material and machine spindle, the sheet material coordinate system of lathe is carried out rotation respective angles, make sheet material coordinate system (Fig. 4 X, Y-coordinate) overlap with the coordinate system set up with sheet material limit (Fig. 4 X ＇ Y ＇).By formulae discovery, obtain anglec of rotation θ, then lathe is parked in a little on 2, can not automatically calculate sheet material initial point and return sheet material initial point, like this just need manual go to take much time goes for sheet material initial point O.
Summary of the invention
Technical problem to be solved by this invention is: for the deficiencies in the prior art, guarantees, when simple, lower cost, to save time further in the basis of existing method for searching edge.
Technical scheme provided by the invention is, the basis that original 2 are sought limit increases by one and seeks edge point, thus the program after seeking limit that realizes automatically calculates the anglec of rotation and sets up sheet material coordinate origin, and automatically cutting head is reached sheet material initial point to be processed.The method for searching edge of sheet material laser cutting machine, comprises the following steps:
A, utilize the checkout gear of laser cutting machine to detect sheet material, and the edge of sheet material detected;
B, checkout gear detect 3 points of sheet edge respectively in the X and Y coordinates of laser cutting machine, wherein the X and Y coordinates of laser cutting machine all at least detect 1 point of sheet edge;
The data back detected to control unit is gone forward side by side line item by C, checkout gear;
D, control unit calculate the formula of the data detected according to setting, draw origin and the anglec of rotation;
E, draw origin and the anglec of rotation after, control unit laser cutting machine workpiece coordinate system rotates to overlapping with sheet material position;
F, control cutting head by control unit and move to the coordinate origin of sheet material.
Checkout gear in described step B respectively the X-coordinate of laser cutting machine detect and Y-coordinate detection sheet edge be respectively 2 points and 1 point.
A kind of sheet material laser cutting machine, it is characterized in that, laser cutting machine uses foregoing method for searching edge to carry out seeking limit.
Described checkout gear is the capacitor height regulating device be arranged on laser cutting machine cutting head.
Described checkout gear is the optoelectronic switch being arranged on cutting head side.
Described control unit is the digital control system be connected with checkout gear.
The invention has the beneficial effects as follows: structural design of the present invention is simple, has high operability, one is that mechanism is succinct, failure rate is low, and cost of manufacture is low, and two is saving material loading lathe downtimes, improves the utilization rate of lathe.Installation of the present invention is simple, be suitable for large-scale promotion uses, can not the cost of adding users too much.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of cutting head;
Fig. 2 is the distance schematic diagram between the detection position of optoelectronic switch and cutting head nozzle location X when installing optoelectronic switch, Y-direction;
Fig. 3 is that the present invention 3 seeks limit schematic diagram;
Fig. 4 is that prior art 2 seeks limit schematic diagram;
In figure:
1, marginal point 1; 2, marginal point 2; 3, marginal point 3; 4, spot switch installation site; 5, sheet material.
Embodiment
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Embodiment one
As shown in Figure 2, cutting head detects the distance between cutting head and plate by capacitor height regulating device, the spacing in cutting head and plate face is larger, the voltage that capacitor height regulating device exports is larger, therefore when there is no sheet material under cutting head, capacitor height regulating device output voltage reaches maximum, so export the moment of maximum when seeking capacitor height regulating device in crack approach, is the edge of sheet material.
As shown in Figure 3, cutting head comes automatic check-out console material marginal point 1, point 2, the mechanical coordinate of point 3 record by capacitor height regulating device, and make point 1 from point 3, put the vertical line of 2 connecting lines, setting intersection point place is workpiece coordinate system initial point and datum point coordinate
with anglec of rotation θ, automatic rotation workpiece coordinate system, computational methods are as follows:
By the point 1 of detection, point 2, put 3 mechanical coordinates substitution formula:
By
Obtain anglec of rotation θ
Pass through
with
derive:
The point 2 calculated anglec of rotation θ and cutting head detected, point 3 substitute into this formula, can obtain
.
In order to be illustrated more clearly in these 3 inventive embodiments or prior art of seeking limit the technical scheme that seek limit at 2, be briefly described to the required accompanying drawing used in embodiment or description of the prior art (shown in Fig. 4) below.
Fig. 4 is at 2 and seeks limit, and the mechanical coordinate of automatic test point 1, point 2, passes through formulae discovery, obtain anglec of rotation θ, then lathe is parked in a little on 2, can not automatically calculate sheet material initial point and return sheet material initial point, like this just need manual go to take much time goes for sheet material initial point O.Employ 3 seek limit function after; cutting head detects original 2 points 1 seeking limit, point 2 automatically by capacitor height regulating device; increase the mechanical coordinate of automatic test point 3 on this basis; make point 1 from point 3, put the vertical line of 2 connecting lines; setting intersection point place is sheet material coordinate origin and datum point coordinate and anglec of rotation θ, and automatic rotation workpiece coordinate system also navigates to sheet material initial point, eliminates the manual time of looking for sheet material initial point; save material loading lathe downtime, improve the utilization rate of lathe.
Technical scheme provided by the invention is, the basis that original 2 are sought limit increases by one and seeks edge point, thus the program after seeking limit that realizes automatically calculates the anglec of rotation and sets up sheet material coordinate origin, and automatically cutting head is reached sheet material initial point to be processed.
Embodiment two
As shown in Figure 1, this alternative scheme is by increasing an optoelectronic switch on cutting head, the machine coordinates position of three points is detected by optoelectronic switch, what optoelectronic switch was selected is normally closed scattered reflection type, detect below optoelectronic switch whether have sheet material by the reverberation of object to be detected, detect output voltage when having sheet material, not output voltage when not having sheet material, therefore when optoelectronic switch is from when having output voltage to become no-output voltage, be now sheet edge.
As shown in Figure 3, by the machine coordinates of the automatic test point 1 of optoelectronic switch, point 2, point 3, make point 1 from point 3, put the vertical line of 2 connecting lines, setting intersection point place is workpiece coordinate system initial point and datum point coordinate
with anglec of rotation θ, automatic rotation workpiece coordinate system, computational methods are as follows:
By the point 1 of detection, point 2, put 3 mechanical coordinates substitution formula:
By
Obtain anglec of rotation θ
Pass through
with
derive:
The point 2 calculated anglec of rotation θ and optoelectronic switch detected, point 3 substitute into this formula, can obtain
.
Calculate
,
, θ.Owing to having certain distance between optoelectronic switch and cutting head, the result that must will calculate
,
deduct the X said in Fig. 2 respectively, the distance of Y, required position is workpiece coordinate system initial point, and the anglec of rotation is θ.
Originally seek two points that limit function only finds an independent limit; angle of departure θ can only be calculated seeking after limit completes; the present invention is at 3 and seeks limit; point basis, limit adding another one limit is sought at original 2; then sheet material coordinate origin is directly calculated by mathematical computations afterwards; make cutting head directly return sheet material coordinate origin, save the downtime that initial point manually found by material loading lathe, improve the utilization rate of lathe.
Claims (6)
1. the method for searching edge of sheet material laser cutting machine, comprises the following steps:
Utilize the checkout gear of laser cutting machine to detect sheet material, and the edge of sheet material detected;
Checkout gear detects 3 points of sheet edge respectively in the X and Y coordinates of laser cutting machine, wherein the X and Y coordinates of laser cutting machine all at least detect 1 point of sheet edge;
The data back detected to control unit is gone forward side by side line item by checkout gear;
Control unit calculates the formula of the data detected according to setting, draws origin and the anglec of rotation;
After drawing origin and the anglec of rotation, control unit controls laser cutting machine workpiece coordinate system and rotates to overlapping with sheet material position;
F, control cutting head by control unit and move to the coordinate origin of sheet material;
2. the method for searching edge of sheet material laser cutting machine as claimed in claim 1, is characterized in that, the checkout gear in described step B respectively the X-coordinate of laser cutting machine detect and Y-coordinate detection sheet edge be respectively 2 points and 1 point.
3. a sheet material laser cutting machine, is characterized in that, laser cutting machine uses the method for searching edge described in claim 1 or 2 to carry out seeking limit.
4. a kind of sheet material laser cutting machine as claimed in claim 3, is characterized in that, described checkout gear is the capacitor height regulating device be arranged on laser cutting machine cutting head.
5. a kind of sheet material laser cutting machine as claimed in claim 3, is characterized in that, described checkout gear is the optoelectronic switch being arranged on cutting head side.
6. a kind of sheet material laser cutting machine as claimed in claim 3, is characterized in that, described control unit is the digital control system be connected with checkout gear.
Priority Applications (1)
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| CN201510382169.2A CN104972228A (en) | 2015-07-03 | 2015-07-03 | Edge finding method of laser cutting machine for panel |
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| CN201510382169.2A CN104972228A (en) | 2015-07-03 | 2015-07-03 | Edge finding method of laser cutting machine for panel |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665922A (en) * | 2016-04-15 | 2016-06-15 | 上海普睿玛智能科技有限公司 | Searching method for feature points of irregular-shape three-dimensional workpiece |
| CN106112278A (en) * | 2016-08-26 | 2016-11-16 | 江苏亚威机床股份有限公司 | The automatic tracing-edge device of a kind of sheet material laser cutting machine and method for searching edge thereof |
| CN106382907A (en) * | 2016-09-29 | 2017-02-08 | 南京林业大学 | Plate inclination detection method of floor production line |
| CN106625027A (en) * | 2017-01-04 | 2017-05-10 | 上海柏楚电子科技有限公司 | Method for determining position of mechanical center of rotating shaft of metal tube cutting system |
| CN107240090A (en) * | 2017-04-18 | 2017-10-10 | 上海柏楚电子科技有限公司 | A kind of method of sheet material contours extract |
| CN107442953A (en) * | 2017-09-14 | 2017-12-08 | 武汉唯拓光纤激光工程有限公司 | A kind of compensation method of laser pipe cutter machining deviation |
| CN108637469A (en) * | 2018-04-10 | 2018-10-12 | 上海柏楚电子科技股份有限公司 | One kind patrolling edge system and its image processing method for being cut by laser vision |
| CN108747049A (en) * | 2018-06-14 | 2018-11-06 | 苏州大族松谷智能装备股份有限公司 | A kind of laser cutting machine and its implementation carrying out plank positioning using CCD |
| CN109108491A (en) * | 2018-09-19 | 2019-01-01 | 上海柏楚电子科技股份有限公司 | A kind of method that safety seeks side |
| CN110170751A (en) * | 2019-06-06 | 2019-08-27 | 济南邦德激光股份有限公司 | A kind of laser cutting automatic tracing-edge method, system and equipment |
| CN110355484A (en) * | 2019-08-13 | 2019-10-22 | 湖州师范学院求真学院 | A kind of breakage photovoltaic panel TPT piece cutting reuse method |
| CN110605485A (en) * | 2019-08-09 | 2019-12-24 | 上海柏楚电子科技股份有限公司 | Method for searching center of pipe with section having two unparallel straight line edges |
| CN110632896A (en) * | 2019-09-23 | 2019-12-31 | 上海气焊机厂有限公司 | Control system, control method, control device, equipment and storage medium of numerical control cutting machine |
| CN111085774A (en) * | 2018-10-24 | 2020-05-01 | 大族激光科技产业集团股份有限公司 | Rapid edge finding method |
| CN111633348A (en) * | 2020-05-19 | 2020-09-08 | 大族激光科技产业集团股份有限公司 | Laser cutting edge searching method, device, equipment and readable medium |
| CN111644758A (en) * | 2020-06-12 | 2020-09-11 | 上海柏楚电子科技股份有限公司 | Plate detection method and device, cutting control method and device and electronic equipment |
| CN112917017A (en) * | 2019-12-05 | 2021-06-08 | 大族激光科技产业集团股份有限公司 | Positioning method and positioning system for workpiece to be machined |
| CN113253673A (en) * | 2020-04-23 | 2021-08-13 | 大族激光科技产业集团股份有限公司 | Conductor plate boundary point positioning method, controller, device and storage medium |
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| CN113878405A (en) * | 2021-09-24 | 2022-01-04 | 沪工智能科技（苏州）有限公司 | Edge searching method for rough edge steel plate |
| CN114906432A (en) * | 2021-02-08 | 2022-08-16 | 大族激光科技产业集团股份有限公司 | Laser cutting and labeling integrated method and laser cutting and labeling equipment |
| CN117226250B (en) * | 2023-11-13 | 2024-03-15 | 大族激光智能装备(江苏)有限公司 | Processing positioning method, processing positioning device and computer readable storage medium |
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| CN105665922A (en) * | 2016-04-15 | 2016-06-15 | 上海普睿玛智能科技有限公司 | Searching method for feature points of irregular-shape three-dimensional workpiece |
| CN106112278A (en) * | 2016-08-26 | 2016-11-16 | 江苏亚威机床股份有限公司 | The automatic tracing-edge device of a kind of sheet material laser cutting machine and method for searching edge thereof |
| WO2018035966A1 (en) * | 2016-08-26 | 2018-03-01 | 江苏亚威机床股份有限公司 | Automatic edge-tracing device for laser cutting machine for sheet material and edge-tracing method thereof |
| CN106382907A (en) * | 2016-09-29 | 2017-02-08 | 南京林业大学 | Plate inclination detection method of floor production line |
| CN106625027A (en) * | 2017-01-04 | 2017-05-10 | 上海柏楚电子科技有限公司 | Method for determining position of mechanical center of rotating shaft of metal tube cutting system |
| CN106625027B (en) * | 2017-01-04 | 2018-06-19 | 上海柏楚电子科技有限公司 | A kind of method for measuring metal pipe material diced system rotary shaft mechanical center position |
| CN107240090A (en) * | 2017-04-18 | 2017-10-10 | 上海柏楚电子科技有限公司 | A kind of method of sheet material contours extract |
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| CN109108491A (en) * | 2018-09-19 | 2019-01-01 | 上海柏楚电子科技股份有限公司 | A kind of method that safety seeks side |
| CN111085774A (en) * | 2018-10-24 | 2020-05-01 | 大族激光科技产业集团股份有限公司 | Rapid edge finding method |
| CN111085774B (en) * | 2018-10-24 | 2022-01-25 | 大族激光科技产业集团股份有限公司 | Rapid edge finding method |
| CN110170751A (en) * | 2019-06-06 | 2019-08-27 | 济南邦德激光股份有限公司 | A kind of laser cutting automatic tracing-edge method, system and equipment |
| CN110605485A (en) * | 2019-08-09 | 2019-12-24 | 上海柏楚电子科技股份有限公司 | Method for searching center of pipe with section having two unparallel straight line edges |
| CN110605485B (en) * | 2019-08-09 | 2021-02-12 | 上海柏楚电子科技股份有限公司 | Method for searching center of pipe with section having two unparallel straight line edges |
| CN110355484A (en) * | 2019-08-13 | 2019-10-22 | 湖州师范学院求真学院 | A kind of breakage photovoltaic panel TPT piece cutting reuse method |
| CN110355484B (en) * | 2019-08-13 | 2020-12-04 | 湖州师范学院求真学院 | TPT (thermoplastic vulcanizate) sheet cutting and recycling method for damaged photovoltaic panel |
| CN110632896A (en) * | 2019-09-23 | 2019-12-31 | 上海气焊机厂有限公司 | Control system, control method, control device, equipment and storage medium of numerical control cutting machine |
| CN112917017A (en) * | 2019-12-05 | 2021-06-08 | 大族激光科技产业集团股份有限公司 | Positioning method and positioning system for workpiece to be machined |
| CN112917017B (en) * | 2019-12-05 | 2023-08-29 | 大族激光科技产业集团股份有限公司 | Positioning method and positioning system for to-be-machined part |
| CN113253673A (en) * | 2020-04-23 | 2021-08-13 | 大族激光科技产业集团股份有限公司 | Conductor plate boundary point positioning method, controller, device and storage medium |
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| CN111633348A (en) * | 2020-05-19 | 2020-09-08 | 大族激光科技产业集团股份有限公司 | Laser cutting edge searching method, device, equipment and readable medium |
| CN111644758A (en) * | 2020-06-12 | 2020-09-11 | 上海柏楚电子科技股份有限公司 | Plate detection method and device, cutting control method and device and electronic equipment |
| CN114906432A (en) * | 2021-02-08 | 2022-08-16 | 大族激光科技产业集团股份有限公司 | Laser cutting and labeling integrated method and laser cutting and labeling equipment |
| CN114906432B (en) * | 2021-02-08 | 2023-10-17 | 大族激光科技产业集团股份有限公司 | Laser cutting and labeling integrated method and laser cutting and labeling equipment |
| CN113792361A (en) * | 2021-09-17 | 2021-12-14 | 合肥艾克斯特智能科技有限公司 | Part marking method and device based on DXF file and storable medium |
| CN113878405A (en) * | 2021-09-24 | 2022-01-04 | 沪工智能科技（苏州）有限公司 | Edge searching method for rough edge steel plate |
| CN117226250B (en) * | 2023-11-13 | 2024-03-15 | 大族激光智能装备(江苏)有限公司 | Processing positioning method, processing positioning device and computer readable storage medium |
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Application publication date: 20151014 |