CN109702355A - A kind of bidifly shaven head cutting method and its device - Google Patents

A kind of bidifly shaven head cutting method and its device Download PDF

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Publication number
CN109702355A
CN109702355A CN201910017111.6A CN201910017111A CN109702355A CN 109702355 A CN109702355 A CN 109702355A CN 201910017111 A CN201910017111 A CN 201910017111A CN 109702355 A CN109702355 A CN 109702355A
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China
Prior art keywords
laser head
cut
processed
head
laser
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CN201910017111.6A
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Chinese (zh)
Inventor
邓超
郭伟建
邓舟泰
赵剑
陈根余
陈焱
高云峰
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Han s Laser Technology Industry Group Co Ltd
Hans Laser Smart Equipment Group Co Ltd
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Han s Laser Technology Industry Group Co Ltd
Hans Laser Smart Equipment Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Han s Laser Technology Industry Group Co Ltd, Hans Laser Smart Equipment Group Co Ltd filed Critical Han s Laser Technology Industry Group Co Ltd
Priority to CN201910017111.6A priority Critical patent/CN109702355A/en
Publication of CN109702355A publication Critical patent/CN109702355A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to laser cutting process technical fields, and in particular to a kind of bidifly shaven head cutting method and its device.The bidifly shaven head cutting method, comprising the following steps: S1, driving material uniform motion to be processed;S2, the cutting task of material to be processed is divided into the first cutting instruction and the second cutting instruction;S3, first laser head are treated processing materials according to the first instruction and are cut, while second laser head is treated processing materials according to the second instruction and cut.While material uniform motion to be processed, processing materials are treated by first laser head and second laser head jointly and are cut, processing efficiency is substantially increased.

Description

A kind of bidifly shaven head cutting method and its device
Technical field
The present invention relates to laser cutting process technical fields, and in particular to a kind of bidifly shaven head cutting method and its device.
Background technique
Existing laser cutting machine is very mature to the sheet fabrication technology of all kinds of specifications, especially in computer numerical control Under the rapid development of technology, the very complicated figure of shape is able to achieve high-precision, processes at high speed.
But in the relatively thin material of batch machining, imitated using the processing of efficiency comparative's punching machine " beat " formula of laser processing Rate, gap are still very big.Since punching machine easily occurs getting stuck in punching course, cracking phenomena;Mold is easy to damage, replacement is time-consuming It is long;Processing flexibility is poor, is not suitable for the processing of various sizes small lot;Stock utilization is low;A series of problems, such as noise is big, part are looked forward to Industry starts to introduce laser cutting to replace traditional punching machine, but utilizes laser cutting process efficiency lower.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, a kind of bidifly shaven head is provided and is cut Segmentation method, the defect of low efficiency when existing laser cutting apparatus being overcome to cut.
The technical solution adopted by the present invention to solve the technical problems is: a kind of bidifly shaven head cutting method is provided, including Following steps: S1, driving material uniform motion to be processed;S2, the cutting instruction of material to be processed is divided into the first cutting instruction With the second cutting instruction;S3, according to the first instruction, driving first laser head is treated processing materials and is cut, while according to the Two instructions, driving second laser head are treated processing materials and are cut.
Further preferred embodiment of the invention is, further comprising the steps of before step S1: S0, passing through leveling Machine flattens coiled strip at material to be processed.
Further preferred embodiment of the invention is, further comprising the steps of between step S0, S1: to pass through roller Structure drives material uniform motion to be processed.
Further preferred embodiment of the invention is that the step S3 is specifically includes the following steps: the first gantry stand Driving first laser head is moved along X, Y, Z-direction, makes the moving interpolation of first laser head complete independently X, Y-direction, to be processed Material is cut by laser;Second gantry stand driving second laser head is moved along X, Y, Z-direction, keeps second laser head independently complete At X, the moving interpolation of Y-direction, treats processing materials and be cut by laser;Wherein, processing materials uniform motion in X direction.
Further preferred embodiment of the invention is, first gantry stand and the second gantry stand in X direction between Every setting.
Further preferred embodiment of the invention is, by the material to be processed along the direction of motion be divided into left processing district and Right processing district, the first laser head are cut into individual part on right processing district;The second laser head is on left processing district It is cut into individual part.
Further preferred embodiment of the invention is that the material to be processed is divided into several front and backs along the direction of motion and is handed over For the first processing district and the second processing district of setting, the first laser head is cut into individual part on the first processing district;Institute It states second laser head and is cut into individual part on the second processing district.
Further preferred embodiment of the invention is that the material to be processed is divided into several thirds along the direction of motion Processing district, the first laser head and second laser head are cut into individual part on third processing district jointly.
The present invention also provides a kind of bidifly shaven head cutter device, including for placing material to be processed workbench, first Gantry stand, the second gantry stand, first laser head, second laser head, the roller mechanism for conveying material to be processed and Evener, evener will flatten coiled strip at material to be processed, and the material to be processed after leveling is transported to work by roller mechanism On platform, first gantry stand and the second gantry stand are respectively mounted on the table, and the first gantry stand drives first laser Head cuts the material to be processed on workbench, and the second portal frame drives second laser head to the object to be processed on workbench Material is cut.
Further preferred embodiment of the invention is, the roller mechanism includes first motor and the first roller component, The first motor can drive the first roller component to rotate, and the workbench is equipped with the second motor and the second roller component, institute Stating the second motor can drive the second roller component to rotate, and first roller component is identical as the second roller component revolving speed.
The beneficial effects of the present invention are pass through first laser head and second while material uniform motion to be processed Laser head is treated processing materials jointly and is cut, and processing efficiency is substantially increased.
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 diagram of bidifly shaven head cutting method of the present invention;
Fig. 2 is the structural schematic diagram of bidifly shaven head cutter device of the present invention;
Fig. 3 is the distribution schematic diagram of coordinate system of the present invention;
Fig. 4 is the first structure diagram of bidifly shaven head cutting method of the present invention;
Fig. 5 is the second structural schematic diagram of bidifly shaven head cutting method of the present invention;
Fig. 6 is the third structural schematic diagram of bidifly shaven head cutting method of the present invention;
Fig. 7 is the 4th structural schematic diagram of bidifly shaven head cutting method 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 present invention provides a kind of bidifly shaven head cutter device, including the work for placing material to be processed Platform 5, the first gantry stand, the second gantry stand, first laser head 1, second laser head 2, the roller for conveying material to be processed Cylinder mechanism 3 and evener 4.Evener 4 flattens coiled strip at material to be processed, and roller mechanism 3 is by the object to be processed after leveling Material is transported on workbench 5, and first gantry stand and the second gantry stand are installed on workbench 5, the first gantry plane Material to be processed on frame driving 1 pair of workbench 5 of first laser head is cut, and the second portal frame drives 2 pairs of second laser head Material to be processed on workbench 5 is cut.
The bidifly shaven head cutter device of the application further includes uncoiler 6, and storage is wound with a large amount of coiled strips in uncoiler 6, using opening Volume machine 6 exports coiled strip, can promote the degree of automation of the present apparatus, and later, coiled strip is material to be processed by the leveling of evener 4, Buffer area 7 is additionally provided between roller mechanism 3 and evener 4, it is ensured that reach the material to be processed at roller mechanism 3 and keep one Fixed space rate and pushing precision.Roller mechanism 3 transports material to be processed to workbench 5 with certain speed, the Material to be processed on 2 pairs of workbench 5 of one laser head 1 and second laser head carries out processing cutting.
As shown in Figure 1, the roller mechanism 3 includes that first motor and the first roller component 31, the first motor can drive Dynamic first roller component 31 rotation, the workbench 5 are equipped with 51 component of the second motor and the second roller, and second motor can The second roller component 51 is driven to rotate, first roller component 31 is identical as 51 revolving speed of the second roller component, makes object to be processed Material remains certain movement velocity during processing cutting, while material movement to be processed, swashs by first Shaven head 1 and second laser head 2 are treated processing materials jointly and are cut, and processing efficiency is substantially increased.
As shown in Fig. 2, the present invention also provides a kind of bidifly shaven head cutting methods, comprising the following steps:
S1, driving material uniform motion to be processed;It is further comprising the steps of before step S1: S0, to be incited somebody to action by evener Coiled strip is flattened into material to be processed.Before cutting, setting evener 4 by material leveling to be processed, avoid cutting when material not Smooth influence cutting effect.
It is further comprising the steps of between step S0, S1: material uniform motion to be processed is driven by roller mechanism.Pass through Cylinder mechanism 3 is set, material to be processed is at the uniform velocity transported, structure is simple.
S2, the cutting instruction of material to be processed is divided into the first cutting instruction and the second cutting instruction;
S3, it being instructed according to first, driving first laser head is treated processing materials and is cut, while instructing according to second, Driving second laser head is treated processing materials and is cut.In the present embodiment, while material uniform motion to be processed, lead to It crosses first laser head 1 and second laser head 2 is treated processing materials jointly and cut, substantially increase processing efficiency.
Further, the step S3 specifically includes the following steps:
First gantry stand driving first laser head is moved along X, Y, Z-direction, makes first laser head complete independently X, Y-direction Moving interpolation, treat processing materials and be cut by laser;
Second gantry stand driving second laser head is moved along X, Y, Z-direction, makes second laser head complete independently X, Y-direction Moving interpolation, treat processing materials and be cut by laser;Wherein, processing materials uniform motion in X direction.
Since this bidifly shaven head cutting method is cut to the material to be processed of uniform motion, i.e., material sheet to be processed Body has certain speed v, so actual speed when the first portal frame driving first laser head 1 moves along the x axis need to add The speed v of material to be processed itself, the first portal frame driving first laser head 1 is mobile along the x axis while driving first laser First 1 movement moved along the y axis is moving interpolation.
In digital control system, one is divided into three channels, and three channels are respectively channel a, channel b and channel c, channel A is the moving interpolation for completing first laser head 1, and channel b is the moving interpolation for completing second laser head 2, and channel c is roller mechanism 3 and workbench 5 the second roller component 51 feeding campaign.Wherein there are speed overlaying relations between channel a and channel c, lead to There are speed overlaying relations between road b and channel c.
As shown in figure 3, the processable range of frame A internal representation lathe, the range of work of frame B internal representation workpiece.First Laser head 1 and second laser head 2 are co-located in a machine coordinates MCS and a workpiece coordinate system OCS, in first laser head 1 executed seek side movement after, the edge coordinate information of material to be processed is given to second laser head 2, it is ensured that two laser heads exist There is same starting point in material wide direction to be processed.At this point, being equivalent in the range of work of a super large breadth, two laser heads It is separately machined under same workpiece coordinate system, it respectively completes respective machining path and obtains workpieces processing.
Further, first gantry stand and the second gantry stand are spaced setting in X direction, make first laser head 1 Collision is not generated in process with second laser head 2, non-interference, complete independently processing order.Between two laser heads There is no connection relationship, graphics processing Track command all derives from NC program, after completing the process a cycle, roller mechanism 3 drive material uniform motion to be processed always, carry out second round processing later, circuit sequentially.
Embodiment one
As shown in figure 4, the material to be processed is divided into right processing district I and left processing district II along the direction of motion, described One laser head 1 is cut into individual part on right processing district I;The second laser head 2 is cut into independence on left processing district II Part.First laser head 1 is moved in I part range always, is cut in I in one's duty materiel machining to be processed.Meanwhile the Dual-laser head 2 moves in II part range always, cuts in II in one's duty materiel machining to be processed.The present embodiment Individual part is by the first cut mark M1, the second cut mark M2, third cut mark M3, the 4th cut mark M4, the 5th cut mark M5 and the 6th cut mark M6 is cut, wherein first laser head 1 is cut into the first cut mark M1, the second cut mark M2, third cut mark M3 according to the first instruction And the 4th cut mark M4, second laser head 2 are cut into the 5th cut mark M5 and the 6th cut mark M6 according to the second instruction.First laser head 1 and second laser head 2 according to different instructions simultaneously treat processing materials cut, improve work efficiency.
Embodiment two
As shown in figure 5, the material to be processed is divided into the first processing district that several front and backs are arranged alternately along the direction of motion P1 and the second processing district P2, the first laser head 1 are cut into individual part on the first processing district P1;The second laser head 2 are cut into individual part on the second processing district P2.The individual part of the present embodiment is by the first welding trace T1, the second welding trace T2, Three welding trace T3, the 4th welding trace T4 and the first welding trace T5 are cut, wherein first laser head 1 is according to the first instruction in the area P1 Domain is cut into the first welding trace T1, the second welding trace T2, third welding trace T3, the 4th welding trace T4 and the first welding trace T5, while second swashs Shaven head 2 according to second instruction the region P2 be cut into the first welding trace T1, the second welding trace T2, third welding trace T3, the 4th welding trace T4 with And the first welding trace T5.Using this cutting mode, material to be processed can be made full use of, cost is reduced.
Embodiment three
As shown in fig. 6, the material to be processed is divided into several third processing districts P3 along the direction of motion, described first swashs Shaven head 1 and second laser head 2 are cut into individual part on the P3 of third processing district jointly.By right simultaneously using two laser heads Material cutting to be processed, greatly improves working efficiency.
Select such cutting mode altogether there are two types of situation, a kind of cutting method is the cutting track and the of first laser head 1 The cutting track of dual-laser head 2 is non-intersecting.As shown in fig. 6, the individual part of the present embodiment is by the 4th trace V4, the 5th trace V5, the 6th trace V6, the 7th trace V7 and the 8th trace V8 are cut, wherein first laser head 1 is cut according to the first instruction The 4th trace V4, the 5th trace V5 and the 6th trace V6 are cut out, meanwhile, second laser head 2 is cut into the according to the second instruction Seven trace V7 and the 8th trace V8, first laser head 1 and second laser head 2 treat processing materials cutting simultaneously, improve work effect Rate.
Another kind is that the cutting track of first laser head 1 intersects with the cutting track of second laser head 2, as shown in fig. 7, originally The individual part of embodiment is cut by the first trace V1, the second trace V2 and third trace V3,1 basis of first laser head First instruction is cut into the first trace V1, and second laser head 2 is cut into the second trace V2 and third trace V3 according to the second instruction, Wherein, the first trace V1 and third trace V3 intersection, using this cutting method, greatly improves working efficiency.
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 bidifly shaven head cutting method, which comprises the following steps:
S1, driving material uniform motion to be processed;
S2, the cutting instruction of material to be processed is divided into the first cutting instruction and the second cutting instruction;
S3, it is instructed according to first, driving first laser head is treated processing materials and cut, while according to the second instruction, driving Second laser head is treated processing materials and is cut.
2. bidifly shaven head cutting method according to claim 1, which is characterized in that further include following before step S1 Step:
S0, coiled strip is flattened into material to be processed by evener.
3. bidifly shaven head cutting method according to claim 2, which is characterized in that between step S0, S1 further include with Lower step: material uniform motion to be processed is driven by roller mechanism.
4. bidifly shaven head cutting method according to claim 1, which is characterized in that the step S3 specifically includes following step It is rapid:
It drives first laser head to move along X, Y, Z-direction by the first gantry stand, makes first laser head complete independently X, Y-direction Moving interpolation, treat processing materials and be cut by laser;
It drives second laser head to move along X, Y, Z-direction by the second gantry stand, makes second laser head complete independently X, Y-direction Moving interpolation, treat processing materials and be cut by laser;Wherein, processing materials uniform motion in X direction.
5. bidifly shaven head cutting method according to claim 4, which is characterized in that first gantry stand and the second dragon Door machine frame is spaced setting in X direction.
6. bidifly shaven head cutting method as claimed in any of claims 1 to 5, which is characterized in that will be described to be added Work material is divided into left processing district and right processing district along the direction of motion, and the first laser head is cut into independent zero on right processing district Part;The second laser head is cut into individual part on left processing district.
7. bidifly shaven head cutting method as claimed in any of claims 1 to 5, which is characterized in that will be described to be added Work material is divided into the first processing district and the second processing district that several front and backs are arranged alternately along the direction of motion, and the first laser head exists Individual part is cut on first processing district;The second laser head is cut into individual part on the second processing district.
8. bidifly shaven head cutting method as claimed in any of claims 1 to 5, which is characterized in that will be described to be added Work material is divided into several third processing districts along the direction of motion, and the first laser head and second laser head are on third processing district It is cut into individual part jointly.
9. a kind of bidifly shaven head cutter device, which is characterized in that including the workbench for placing material to be processed, first gantry Rack, the second gantry stand, first laser head, second laser head, roller mechanism and leveling for conveying material to be processed Machine, evener will flatten coiled strip at material to be processed, and the material to be processed after leveling is transported on workbench by roller mechanism, First gantry stand and the second gantry stand are respectively mounted on the table, and the first gantry stand drives first laser head to work The material to be processed made on platform is cut, and the second portal frame drives second laser head to carry out the material to be processed on workbench Cutting.
10. bidifly shaven head cutter device according to claim 9, which is characterized in that the roller mechanism includes the first electricity Machine and the first roller component, the first motor can drive the first roller component to rotate, and the workbench is equipped with the second motor With the second roller component, second motor can drive the second roller component to rotate, first roller component and the second roller Component revolving speed is identical.
CN201910017111.6A 2019-01-08 2019-01-08 A kind of bidifly shaven head cutting method and its device Pending CN109702355A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114985981A (en) * 2022-07-20 2022-09-02 新代科技(苏州)有限公司 Processing method for simultaneous feeding and cutting

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1652895A (en) * 2003-01-21 2005-08-10 丰田钢铁中心株式会社 Laser cutting device, laser cutting method and laser cutting system
CN202087926U (en) * 2011-04-22 2011-12-28 吴振泉 Laser cutting equipment capable of feeding moving belts
KR20130048500A (en) * 2011-11-02 2013-05-10 주식회사 엠엠테크 A glass scribing apparatus having multi scribing head
CN103624487A (en) * 2013-04-28 2014-03-12 宝山钢铁股份有限公司 Uncoiling blanking forming method
CN105081584A (en) * 2015-08-31 2015-11-25 宝山钢铁股份有限公司 Method and system for laser cutting through dynamic following of synchronous passing plates
CN206029029U (en) * 2016-08-31 2017-03-22 江苏亚威机床股份有限公司 Online laser cutting system of motion sheet material
CN206567697U (en) * 2017-03-23 2017-10-20 广东大族粤铭激光集团股份有限公司 A kind of laser cutting machine and its asynchronous cutter device of bull
CN207239461U (en) * 2017-08-29 2018-04-17 济南森峰科技有限公司 A kind of soft material laser cutting machine
CN207289198U (en) * 2017-07-21 2018-05-01 武汉金运激光产业发展有限公司 A kind of double end asynchronous excitation cutting machine
CN207710106U (en) * 2017-12-29 2018-08-10 珠海市印心轩广告有限公司 Double cutting head all-in-one machines
CN108393594A (en) * 2018-04-28 2018-08-14 广州新可激光设备有限公司 A kind of laser cutting device and its cutting method of planar products

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1652895A (en) * 2003-01-21 2005-08-10 丰田钢铁中心株式会社 Laser cutting device, laser cutting method and laser cutting system
CN202087926U (en) * 2011-04-22 2011-12-28 吴振泉 Laser cutting equipment capable of feeding moving belts
KR20130048500A (en) * 2011-11-02 2013-05-10 주식회사 엠엠테크 A glass scribing apparatus having multi scribing head
CN103624487A (en) * 2013-04-28 2014-03-12 宝山钢铁股份有限公司 Uncoiling blanking forming method
CN105081584A (en) * 2015-08-31 2015-11-25 宝山钢铁股份有限公司 Method and system for laser cutting through dynamic following of synchronous passing plates
CN206029029U (en) * 2016-08-31 2017-03-22 江苏亚威机床股份有限公司 Online laser cutting system of motion sheet material
CN206567697U (en) * 2017-03-23 2017-10-20 广东大族粤铭激光集团股份有限公司 A kind of laser cutting machine and its asynchronous cutter device of bull
CN207289198U (en) * 2017-07-21 2018-05-01 武汉金运激光产业发展有限公司 A kind of double end asynchronous excitation cutting machine
CN207239461U (en) * 2017-08-29 2018-04-17 济南森峰科技有限公司 A kind of soft material laser cutting machine
CN207710106U (en) * 2017-12-29 2018-08-10 珠海市印心轩广告有限公司 Double cutting head all-in-one machines
CN108393594A (en) * 2018-04-28 2018-08-14 广州新可激光设备有限公司 A kind of laser cutting device and its cutting method of planar products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114985981A (en) * 2022-07-20 2022-09-02 新代科技(苏州)有限公司 Processing method for simultaneous feeding and cutting

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Application publication date: 20190503