CN103111765A - Three-dimensional laser cutting machine with four-axis-linkage secondary laser head driving device - Google Patents
Three-dimensional laser cutting machine with four-axis-linkage secondary laser head driving device Download PDFInfo
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- CN103111765A CN103111765A CN2013100914200A CN201310091420A CN103111765A CN 103111765 A CN103111765 A CN 103111765A CN 2013100914200 A CN2013100914200 A CN 2013100914200A CN 201310091420 A CN201310091420 A CN 201310091420A CN 103111765 A CN103111765 A CN 103111765A
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- 238000003698 laser cutting Methods 0.000 title claims abstract description 42
- 230000033001 locomotion Effects 0.000 claims abstract description 33
- 230000002457 bidirectional effect Effects 0.000 claims description 34
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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Abstract
The invention discloses a three-dimensional laser cutting machine with a four-axis-linkage secondary laser head driving device, which is simplified in structure, can do small-range motion on the basis of three-dimensional motion, and greatly improves cutting accuracy and cutting efficiency. The three-dimensional laser cutting machine comprises a controller, a base, a transverse beam, a worktable, a Y-direction moving seat, a Z-direction moving seat, a laser cutting head and a laser generator as well as the four-axis-linkage secondary laser head driving device which comprises an a-axis moving device and a c-axis moving mode which can rotate around an a axis. The three-dimensional laser cutting machine is ingenious in structure, is simple to program in digital control application, has the advantages of high motion track positioning accuracy and low cutting track distortion rate, and improves control precision.
Description
Technical field
The present invention relates to the digital control plate laser cutting machine, relate in particular to the improvement of cutting head driving mechanism among a small circle of the laser cutting machine with local high-speed cutting function.
Background technology
For constantly perfect, the motion that becomes more meticulous of optimizing laser cutting machine, the applicant's laser head kinematic system to laser cutting machine from 2009 has constantly been carried out independent research.Proposed simultaneously name in 2010.6.10. to State Intellectual Property Office and be called " a kind of laser cutting machine and method of work thereof; 201010196705.7 " and " laser cutting machine; 201020221418.2 " two patent applications, the former is open in 2011.1.26., publication number: CN101862909A.This innovative technology is for overcoming foregoing problems, it adopts and set up the X-direction short lead rail on the laser head seat on crossbeam, with the Y-direction motion synthesis of laser head seat with respect to crossbeam, complete the motion of regional inner laser head among a small circle, and then need not crossbeam carry out the X-direction feed motion when moving among a small circle, greatly reduce the Energy in use of equipment.It can have high cut quality, high efficiency as the small breadth laser cutting machine, high accuracy, and the lower-powered effect that in cutting process, drive system consumes.But the laser head seat structure that adopts in this scheme still seems comparatively huge, heavy, causes motional inertia large, and then causes running precision low; And when needs change laser head Z-direction height, need independent Z-direction driving mechanism.
For this reason, the applicant submitted again in 2011.5.16. to State Intellectual Property Office the name be called: the patent application of " a kind of numerical control laser cutter of combination flooding braking technique ", application number " 201110125783.2 ".Adopted more light and handy linear driving mechanism, moved by connecting rod driving laser cutting head.The advantage of this technical scheme is outstanding, but has the technical staff to think in applicant R﹠D team also to have further simplified structure, simplifies the research and development space of controlling programming.So the applicant has proposed again " a kind of two-dimensional laser cutting machine ", application number: the patent application of " 201110396779.X ", laser cutting head is movably connected on the Y-direction guide rail of described crossbeam side by local motion mechanism; Local motion mechanism can move along Z axis with around the Z axis direction of rotation flexibly, and it and Y-direction motion synthesis are realized, the cutting head of the laser cutting machine of local high-speed cutting function among a small circle in the improvement of driving mechanism.But this mechanism is confined to be applied to the application of two-dimensional laser cutting machine, can not be applied to three-dimensional laser cutting machine, and all there is no better raising on cut coverage and precision, on efficient.
Summary of the invention
The present invention is directed to above problem, provide a kind of structure more to simplify, on the basis of three-dimensional motion, realize simultaneously motion among a small circle, greatly improve the three-dimensional laser cutting machine of the four-axle linked secondary laser head drive unit of having of cutting accuracy and cutting efficiency.
Technical scheme of the present invention is: comprise controller, support, crossbeam, workbench, Y-direction kinematic nest, Z-direction kinematic nest, laser cutting head and laser generator; Also comprise four-axle linked secondary laser head drive unit; Described four-axle linked secondary laser head drive unit comprises a axle telecontrol equipment and the c-axis telecontrol equipment that can rotate around a axle telecontrol equipment;
Described a axle telecontrol equipment comprises pedestal, cylinder base one, bidirectional hollow helical axis one, speculum group one, screw one A, screw one B, drive motors one A and drive motors one B;
The two ends of described bidirectional hollow helical axis one are respectively equipped with two opposite joint screw thread, i.e. thread segment A and thread segment B of rotation direction;
Described screw one A and screw one B are movably arranged on respectively in described cylinder base one, only keep rotary freedom separately; The internal thread of described screw one A and described thread segment A are suitable, and internal thread and the thread segment B of described screw one B are suitable; Drive motors one A and drive motors one B drive respectively screw one and screw two motions;
Described speculum group one is fixedly connected on the bottom of described bidirectional hollow helical axis one, the relatively turnable end that is connected to C axle telecontrol equipment of the side of described speculum group one;
The top of described cylinder base one is fixedly connected on the bottom surface of described pedestal, and the side of described pedestal is fixedly connected on the bottom sides of described Z-direction kinematic nest;
Described c-axis telecontrol equipment comprises cylinder base two, bidirectional hollow helical axis two, speculum group two, screw two A, screw two B, drive motors two A and drive motors two B;
The two ends of described bidirectional hollow helical axis two are respectively equipped with two opposite joint screw thread, i.e. thread segment C and thread segment D of rotation direction;
Described screw two A and screw two B are movably arranged on respectively in described cylinder base two, only keep rotary freedom separately; The internal thread of described screw two A and described thread segment C are suitable, and internal thread and the thread segment D of described screw two B are suitable; Drive motors two A and drive motors two B drive respectively screw two A and screw two B motions;
Described speculum group two sides are fixedly connected on the other end of described bidirectional hollow helical axis two; Described laser cutting head is fixedly connected on the bottom of speculum group two.
Described cylinder base one also comprises sleeve one and sleeve two, and described sleeve one and sleeve two are can relative flexible flexible connection; Described screw one A is located in described sleeve one, and described screw one B is located in described sleeve two, makes the distance between screw one A and screw one B adjustable;
Described cylinder base two also comprises sleeve three and sleeve four, described sleeve three and sleeve four are can relative flexible flexible connection, described screw two A are located in described sleeve three, and described screw two B are located in described sleeve four, make the distance between screw two A and screw two B adjustable.
Described a axle telecontrol equipment and described c-axis telecontrol equipment are an angle of 90 degrees mutually; Described laser cutting head is parallel with described a axle telecontrol equipment.
The present invention on the basis of existing technology, a kind of novel three-dimensional that adapts to Digital Control local driving mechanism has among a small circle been proposed innovatively, be provided with four-axle linked secondary laser head drive unit (be a pair of screw drive have positive/negative thread double end screw mandrel move) in the bottom of Z-direction kinematic nest, make bidirectional hollow helical axis one do axial straight reciprocating motion and/or rotatablely move with respect to cylinder base one under the driving of screw one A and screw one B; Make bidirectional hollow helical axis two do axial straight reciprocating motion and/or rotatablely move with respect to cylinder base two under the driving of screw two A and screw two B;
When constant speed was rotated in the same way, the rotation that bidirectional hollow helical axis one is done in the same way realized rotatablely moving, thereby drives the c-axis telecontrol equipment at the XY rotation with in surface when a pair of screw in a axle telecontrol equipment, and c-axis can be embodied as the unspecified angle in 360 ° in the xy plane;
When a pair of screw in the c-axis telecontrol equipment is done constant speed rotation in the same way, the rotation that bidirectional hollow helical axis two is done in the same way, thereby driving laser cutting head rotates around the c-axis direction, realize the rotation in the XYZ plane, when the reverse constant speed of a pair of screw of c-axis telecontrol equipment is rotated, the rotation of bidirectional hollow helical axis two in c-axis (vertical Y Z-direction) is done among a small circle realizes the transverse movement in the c-axis direction.
The z of a axle adds the laterally moving of c-axis to motion or XY rotation with in surface, and the rotation in the XYZ plane of c-axis, realizes three-dimensional motion among a small circle.In sum, when c-axis telecontrol equipment and a axle telecontrol equipment routing motion, just can realize the three-dimensional motion of laser cutting head.
For trace, the microspur action that further adapts to cutting head, in the present invention on the bidirectional hollow helical axis spacing between a pair of screw adjustable.
Delicate structure of the present invention, in Digital Control was used, programming was simple, and the movement locus positioning accuracy is high, and the cutting track distortion rate is low, has improved control accuracy.
Description of drawings
Fig. 1 is structural representation of the present invention,
Fig. 2 is four-axle linked secondary laser head drive unit cutaway view in the present invention;
In figure, 1 is support, the 10th, and workbench, the 11st, crossbeam, the 12nd, the Y-direction kinematic nest, the 13rd, the Z-direction kinematic nest,
The 3rd, four-axle linked secondary laser head drive unit, the 30th, a axle telecontrol equipment, the 301st, sleeve one, the 302nd, sleeve two, 303rd, sleeve three, 304th, sleeve four, the 32nd, speculum group one, 321st, microscope base one, 322nd, eyeglass one, the 33rd, speculum group two, 331st, microscope base two, 332nd, eyeglass two, the 333rd, adaptor, the 34th, c-axis telecontrol equipment, the 36th, cylinder base one, the 37th, cylinder base two, 38th, pedestal
The 4th, laser cutting head,
The 6th, bidirectional hollow helical axis one, 61st, thread segment A, the 62nd, thread segment B, the 63rd, thread segment C, the 64th, thread segment D,
The 71st, screw one A, the 72nd, screw one B, the 73rd, screw two A, the 74th, screw two B,
The 8th, bidirectional hollow helical axis two.
The specific embodiment
The present invention comprises controller, support 1, crossbeam 11, workbench 10, Y-direction kinematic nest 12, Z-direction kinematic nest 13, laser cutting head 4 and laser generator as shown in Fig. 1-2; Also comprise four-axle linked secondary laser head drive unit 3; Described four-axle linked secondary laser head drive unit 3 comprises a axle telecontrol equipment 30 and the c-axis telecontrol equipment 34 that can rotate around a axle telecontrol equipment 30;
Described a axle telecontrol equipment 30 comprises pedestal 38, cylinder base 1, bidirectional hollow helical axis 1, speculum group 1, screw one A71, screw one B72, drive motors one A and drive motors one B;
The two ends of described bidirectional hollow helical axis 1 are respectively equipped with two opposite joint screw thread, i.e. thread segment A61 and thread segment B62 of rotation direction;
Described screw one A71 and screw one B72 are movably arranged on respectively in described cylinder base 1, only keep rotary freedom separately; The internal thread of described screw one A71 and described thread segment A61 are suitable, and internal thread and the thread segment B62 of described screw one B72 are suitable; Drive motors one A and drive motors one B drive respectively screw 1 and screw 2 72 motions; Drive motors one A is connected B and is connected respectively controller with drive motors, controller is controlled motor accelerated motion.
Described speculum group 1 is fixedly connected on the bottom of described bidirectional hollow helical axis 1, the relatively turnable end that is connected to C axle telecontrol equipment of the side of described speculum group 1;
The top of described cylinder base 1 is fixedly connected on the bottom surface of described pedestal 38, and the side of described pedestal 38 is fixedly connected on the bottom sides of described Z-direction kinematic nest 13;
Described c-axis telecontrol equipment 34 comprises cylinder base 2 37, bidirectional hollow helical axis 28, speculum group 2 33, screw two A73, screw two B74, drive motors two A, drive motors two B,
The two ends of described bidirectional hollow helical axis 28 are respectively equipped with two opposite joint screw thread, i.e. thread segment C63 and thread segment D62 of rotation direction;
Described screw two A73 and screw two B74 are movably arranged on respectively in described cylinder base 2 37, only keep rotary freedom separately; The internal thread of described screw two A73 and described thread segment C63 are suitable, and internal thread and the thread segment D64 of described screw two B74 are suitable; Drive motors two A and drive motors two B drive respectively the two B74 motions of screw two A73 and screw, and drive motors two A are connected B and are connected respectively controller with drive motors, and controller is controlled motor accelerated motion.
Described speculum group 2 33 sides are fixedly connected on the bottom of described bidirectional hollow helical axis 28; Described laser cutting head 4 is fixedly connected on the bottom of speculum group 2 33; Speculum group 2 33 is connected with described speculum group 1 by bidirectional hollow helical axis 28;
Enter the laser cutting head moving component in view of the light path of laser cutting machine generally is parallel to Z-direction kinematic nest 13, therefore can directly laser generator be placed on Z-direction kinematic nest 13.Laser generator directly enters bidirectional hollow helical axis 1 by the hole on Z-direction kinematic nest 13 and enters bidirectional hollow helical axis 28 through speculum group 1 again, enters laser cutting head through speculum group 2 33.Described speculum group 1 comprises microscope base 1 and eyeglass 1, and speculum group 2 33 comprises microscope base 2 331, adaptor 333 and eyeglass 2 332; Described eyeglass 1 and eyeglass 2 332 are individually fixed in microscope base 1 and microscope base 2 331; Laser cutting head 4 is fixed on the adaptor 333 of microscope base 2 331 bottoms.
Described a axle telecontrol equipment 30 is an angle of 90 degrees mutually with described c-axis telecontrol equipment 34; Described laser cutting head 4 is parallel with described a axle telecontrol equipment 30.Such control function is simple, is convenient to calculate the movement locus of laser cutting head, realizes simultaneously the effective location of laser cutting head.
Described cylinder base 1 also comprises sleeve 1 and sleeve 2 302, and described sleeve 1 and sleeve 2 302 are can relative flexible flexible connection; Described screw one A71 is located in described sleeve 1, and described screw one B72 is located in described sleeve 2 302, makes the distance between screw one A71 and screw one B72 adjustable; Be convenient to adjustment stroke.
Described cylinder base 2 37 also comprises sleeve 3 303 and sleeve 4 304, and described sleeve 3 303 and sleeve 4 304 are can relative flexible flexible connection; Described screw two A73 are located in described sleeve 3 303, and described screw two B74 are located in described sleeve 4 304, make the distance between screw two A73 and screw two B74 adjustable; Be convenient to adjustment stroke.
There is screw thread the end of described sleeve 3 303 and sleeve 1, and the end of described sleeve 4 304 and sleeve 2 302 is socketed on respectively on the end of sleeve 3 303 and sleeve 1.When sleeve 4 304 and sleeve 2 302 rotate with respect to sleeve 3 303 and sleeve 1, sleeve 3 303 and sleeve 2 302 change with the distance of sleeve 4 304 and sleeve 1 respectively, and the movement travel of described bidirectional hollow helical axis 28 and/or bidirectional hollow helical axis 1 shortens or be elongated; Thereby play the fine setting secondary laser driving apparatus A to the purpose of C to movement travel.
Based on above design, another kind of improvement project of the present invention is, also comprise fine setting nut one and fine setting nut two, described sleeve 1 is connected by spring with sleeve 2 302, described sleeve 3 303 is connected by spring with sleeve 4 304, on the sleeve outer wall of described sleeve 1 or sleeve 2 302, external screw thread is arranged, described fine setting nut one is placed on the outer wall of described sleeve 1 or sleeve 2 302.On the sleeve outer wall of described sleeve 3 303 or sleeve 4 304, external screw thread is arranged, described fine setting nut two is placed on the outer wall of described sleeve 3 303 or sleeve 4 304.When turn fine setting nut one and fine setting nut two, distance between sleeve 1 and sleeve 2 302 changes, distance between sleeve 3 303 and sleeve 4 304 changes, and the movement travel that can realize bidirectional hollow helical axis 28 and/or bidirectional hollow helical axis 1 shortens or be elongated.
The present invention has increased the free degree of bidirectional hollow spiral axially-movable, can realize wider cutting movement, improves the scope of application of cutting machine.In addition, carry out accelerated service by motor, can improve running efficiency.Due to the existence of acceleration, laser cutting head is short in the time of staying of finished surface, can not shine into scorch.Improve machining accuracy.
Claims (3)
1. the three-dimensional laser cutting machine with four-axle linked secondary laser head drive unit, comprise controller, support (1), crossbeam (11), workbench (10), Y-direction kinematic nest (12), Z-direction kinematic nest (13), laser cutting head (4) and laser generator; It is characterized in that:
Also comprise four-axle linked secondary laser head drive unit (3); Described four-axle linked secondary laser head drive unit (3) comprises a axle telecontrol equipment (30) and the c-axis telecontrol equipment (34) that can rotate around a axle telecontrol equipment (30);
Described a axle telecontrol equipment (30) comprises pedestal (38), cylinder base one (36), bidirectional hollow helical axis one (6), speculum group one (32), screw one A(71), screw one B(72), drive motors one A and drive motors one B;
Described c-axis telecontrol equipment (34) comprises cylinder base two (37), bidirectional hollow helical axis two (8), speculum group two (33), screw two A(73), screw two B(74), drive motors two A and drive motors two B;
The two ends of described bidirectional hollow helical axis one (6) are respectively equipped with two opposite joint screw thread, i.e. thread segment A(61 of rotation direction) and thread segment B(62);
Described screw one A(71) and screw one B(72) be movably arranged on respectively in described cylinder base one (36), only keep rotary freedom separately; Described screw one A(71) internal thread and described thread segment A(61) suitable, described screw one B(72) internal thread and thread segment B(62) suitable; Drive motors one A and drive motors one B drive respectively screw one (71) and screw two (72) motions;
Described speculum group one (32) is fixedly connected on the bottom of described bidirectional hollow helical axis one (6), and the side of described speculum group one (32) is fixedly connected on an end of the cylinder base two (37) on C axle telecontrol equipment (34);
The top of described cylinder base one (36) is fixedly connected on the bottom surface of described pedestal (38), and the side of described pedestal (38) is fixedly connected on the bottom sides of described Z-direction kinematic nest (13);
The two ends of described bidirectional hollow helical axis two (8) are respectively equipped with two opposite joint screw thread, i.e. thread segment C(63 of rotation direction) and thread segment D(64);
Described screw two A(73) and screw two B(74) be movably arranged on respectively in described cylinder base two (37), only keep rotary freedom separately; Described screw two A(73) internal thread and described thread segment C(63) suitable, described screw two B(74) internal thread and thread segment D(64) suitable; Drive motors two A and drive motors two B drive respectively screw two A(73) and screw two B(74) motion;
Described speculum group two (33) sides are fixedly connected on the other end of described bidirectional hollow helical axis two (8); Described laser cutting head (4) is fixedly connected on the bottom of speculum group two (33).
2. a kind of three-dimensional laser cutting machine with four-axle linked secondary laser head drive unit according to claim 1, it is characterized in that: described cylinder base one (36) also comprises sleeve one (301) and sleeve two (302), and described sleeve one (301) and sleeve two (302) are can relative flexible flexible connection; Described screw one A(71) be located in described sleeve one (301) described screw one B(72) be located in described sleeve two (302), make screw one A(71) and screw one B(72) between distance adjustable;
Described cylinder base two (37) also comprises sleeve three (303) and sleeve four (304), and described sleeve three (303) and sleeve four (304) are can relative flexible flexible connection; Described screw two A(73) be located in described sleeve three (303) described screw two B(74) be located in described sleeve four (304), make screw two A(73) and screw two B(74) between distance adjustable.
3. a kind of three-dimensional laser cutting machine with four-axle linked secondary laser head drive unit according to claim 1, is characterized in that, described a axle telecontrol equipment (30) is an angle of 90 degrees mutually with described c-axis telecontrol equipment (34); Described laser cutting head (4) is parallel with described a axle telecontrol equipment (30).
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| CN201310091420.0A CN103111765B (en) | 2013-03-20 | 2013-03-20 | Three-dimensional laser cutting machine with four-axis-linkage secondary laser head driving device |
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| CN201310091420.0A CN103111765B (en) | 2013-03-20 | 2013-03-20 | Three-dimensional laser cutting machine with four-axis-linkage secondary laser head driving device |
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| CN103449715A (en) * | 2013-08-26 | 2013-12-18 | 广州安特激光技术有限公司 | Universal galvanometer arm for ultraviolet laser glass cutting machine |
| CN105345260A (en) * | 2015-12-08 | 2016-02-24 | 重庆镭宝激光智能机器人制造有限公司 | Simple expression device for motion track of laser head |
| CN107030379A (en) * | 2016-02-03 | 2017-08-11 | 中国科学院西安光学精密机械研究所 | A kind of laser Machining head, laser processing device and its processing method |
| CN107283054A (en) * | 2017-06-19 | 2017-10-24 | 台州市黄岩东胜机械设备有限公司 | A kind of intelligent die laser engraving machine |
| CN107570885A (en) * | 2015-11-09 | 2018-01-12 | 常州科乐为数控科技有限公司 | A kind of laser cutting machine |
| CN112264722A (en) * | 2020-10-16 | 2021-01-26 | 西安中科微精光子制造科技有限公司 | Laser micropore machining equipment and machining method suitable for thin-wall parts |
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| CN103111765B (en) | 2014-09-17 |
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Denomination of invention: A 3D laser cutting machine with a four-axis linkage secondary laser head driving device Effective date of registration: 20231223 Granted publication date: 20140917 Pledgee: Jiangsu Zijin Rural Commercial Bank Co.,Ltd. Yangzhou Branch Pledgor: Yangzhou Hengyun Construction Development Co.,Ltd. Registration number: Y2023980073704 |
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