WO2018040912A1 - 一种打标物上具有深孔结构及应用于打标物边界的3d激光打标方法 - Google Patents
一种打标物上具有深孔结构及应用于打标物边界的3d激光打标方法 Download PDFInfo
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- WO2018040912A1 WO2018040912A1 PCT/CN2017/097577 CN2017097577W WO2018040912A1 WO 2018040912 A1 WO2018040912 A1 WO 2018040912A1 CN 2017097577 W CN2017097577 W CN 2017097577W WO 2018040912 A1 WO2018040912 A1 WO 2018040912A1
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- marking
- virtual
- deep hole
- pattern
- laser
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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
Definitions
- the invention relates to the field of 3D laser marking, in particular to a 3D laser marking method with a deep hole structure on a marking object and applied to a marking object boundary.
- 3D laser marking is a laser surface depression processing method that uses a high energy density laser to locally irradiate the workpiece to vaporize the surface material or cause a chemical reaction of color change, thereby leaving a permanent mark.
- Laser marking can mark a variety of text, symbols and patterns, and the size of the characters can even reach the order of micrometers.
- the laser beam used for laser marking is generated by a laser, and after a series of optical conduction and processing, the beam is finally focused by the optical lens, and then the focused high-energy beam is deflected to a specified position on the surface of the object to be processed to form a permanent recess. trace.
- Conventional 2D laser marking uses a post-focusing method, and generally only performs planar marking within a specified range.
- the 3D laser marking machine adopts an advanced pre-aggregation method, which adds a dynamic focus seat.
- This adopts the optical principle, like the working principle of candle imaging, through software control and moving dynamic focusing mirror, which is variable before the laser is focused. Expanding the beam to change the focal length of the laser beam to achieve accurate surface focusing of different objects.
- the object of the present invention is to provide a 3D laser marking method capable of overcoming the technical problem of sudden change of the Z-axis cursor when passing through the deep hole portion and the boundary of the marking object, and avoiding the large movement of the motor of the adjustment driver portion of the Z-axis focusing. .
- the present invention is achieved by a 3D laser marking method having a deep hole structure and a boundary applied to a marking object, including a laser, a focusing lens group, a galvanometer and a control system.
- the laser light emitted by the laser is adjusted by the focusing lens group, and then emitted through the galvanometer, and finally hits the marking object on the marking object.
- the control system controls the position of the laser focus in the X and Y directions of the marking object by adjusting the galvanometer;
- the control system controls the laser focus on the marking object by controlling the focusing mirror group Position in the Z-axis direction; the method includes the following steps:
- control system comprises a computer system, and a 3D model of the marking object is imported into the computer system;
- S2 Creating a virtual marking surface: for a marking object having a deep hole structure, a first virtual marking surface covering the deep hole position is formed on the deep hole portion of the marking object; and extending outward at the marking object boundary a second virtual marking surface;
- the pattern to be marked is pasted along the surface of the 3D model, and the pattern is pasted along the first virtual marking surface at the deep hole position when the pattern is pasted to the deep hole position;
- the pattern is pasted to the boundary position, if the pattern pasting position exceeds the boundary, the pattern is pasted on the extended second virtual marking surface;
- the computer system marks the corresponding pattern on the corresponding position of the marking object by controlling the galvanometer and the focusing lens group, and adopts the pattern when passing through the deep hole position Directly marking the virtual position of the marking object corresponding to the first virtual marking surface of the 3D model; at the marking boundary, directly marking the pattern to correspond to the second virtual marking surface of the 3D model The virtual location of the marking object.
- the first virtual marking surface is a straight plane, a curved surface or a wave surface.
- the first virtual marking surface is a straight plane extending from the shortest side edge to the other side edge and covering the entire deep hole.
- the first virtual marking surface and the surface of the deep hole circumferential side marking object are tangent at the joint.
- the angle between the tangent of the first virtual marking surface and the horizontal direction at the tangent is ⁇ , ⁇ 45 degrees.
- the distance of the first virtual marking surface at the tangent to the bottom of the deep hole is h, h ⁇ 4 mm.
- the first virtual marking surface is at least tangentially connected to a certain side of the surface of the deep hole peripheral marking object.
- the second virtual marking surface is a straight plane or a curved surface.
- the second virtual marking surface is tangent at the junction along the marking and the boundary.
- the second virtual marker extends outwardly at a distance of at least 3 mm.
- the pattern comprises graphics, text or a combination thereof.
- the focusing lens group comprises a set of parallel and oppositely disposed first and second lenses, the first lens is fixed, and the second lens is mounted on a Z-axis adjustment driver, in the Z-axis
- the adjustment drive can be moved left and right to adjust the distance between the two mirrors to finally adjust the position of the laser focus in the Z-axis direction of the marking object.
- the Z-axis adjustment driver includes a fixing base and a motor, the motor is fixedly mounted on the fixing base, the fixing seat is provided with a strip-shaped guide rail, and the slider is mounted with a slider on the slider A lens holder is mounted, and the second lens is mounted on the lens holder.
- the motor is connected to a rotating shaft, and a driving device is connected to the rotating shaft, the first device includes a first connecting rod and a second connecting rod, and the first connecting rod is connected to the rotating shaft and connected to the other end.
- a second link connected to the slider for driving the slider to slide back and forth on the guide rail.
- the invention has the beneficial effects that the present invention creates a virtual marking surface covering the deep hole in the deep hole portion of the marking object having the deep hole structure, and directly marks the pattern when marking the deep hole position.
- the Z-axis cursor is instantaneously prevented from jumping at a large distance, thereby avoiding the instantaneous large-scale movement of the driving device of the adjusting driver portion for controlling the Z-axis focusing, thereby greatly reducing the damage to the adjusting driver and prolonging the damage. Its service life.
- FIG. 1 is a schematic view showing the hardware structure of a 3D laser marking method having a deep hole structure on a marking object according to the present invention.
- FIG. 2 is a schematic view showing the structure of a Z-axis adjustment driver in a 3D laser marking method having a deep hole structure on a marking object according to the present invention.
- FIG. 3 is a schematic view showing the operation steps of a 3D laser marking method having a deep hole structure on a marking object according to the present invention.
- FIGS. 4-8 are schematic views of a first virtual marking surface formed by a marking having a deep hole structure.
- 9-10 are schematic views of a second virtual marking surface formed at the boundary of the marking object.
- laser-1 focusing lens group-2, first lens-21, second lens-22, galvanometer-3, marking object-4, Z-axis adjustment driver-5, fixed Block-51, motor-52, rail-53, slider-54, mirror mount-55, first link-56, second link-57, deep hole-6, first virtual marking surface-7, The second virtual marking surface is -8.
- a 3D laser marking method with a deep hole structure on a marking object includes a laser 1 , a focusing lens group 2 , a galvanometer 3 and a control system, and the laser light emitted by the laser 1 passes through the The focusing lens group 2 performs focusing, and then passes through the galvanometer 3 to finally shoot onto the marking object 4 to mark the marking object 4; the control system controls the laser focus through the galvanometer 3 The position of the object in the X and Y directions; the control system controls the position of the laser focus in the Z-axis direction of the marking object by controlling the focusing lens group 2.
- the focusing lens group 2 includes a set of first and second lenses 21 and 22 that are arranged in parallel and oppositely, the first lens 21 is fixed, and the second lens 22 is mounted on
- the Z-axis adjustment driver 5 is movable left and right by the Z-axis adjustment driver 5 to adjust the distance between the two mirrors, and finally adjusts the position of the laser focus in the Z-axis direction of the marking object.
- the position of the focus after the last laser focusing is different in the Z-axis direction.
- the Z-axis adjustment driver 5 includes a fixing base 51 and a motor 52.
- the motor 51 is fixedly mounted on the fixing base 52.
- the fixing base 51 is provided with a strip-shaped guide rail 53 on which a slider 54 is mounted.
- a lens holder 55 is mounted on the slider 54 , and the second lens 22 is mounted on the lens holder 55 .
- the motor 52 is connected to a rotating shaft, and the rotating shaft is connected with a driving device.
- the driving device includes a first connecting rod 56 and a second connecting rod 57. One end of the first connecting rod 56 is connected with the rotating shaft 57 and the other end passes through the bearing.
- the second link 57 is connected, and the second link 57 is connected to the slider 54 for driving the slider 54 to slide back and forth on the guide rail 53.
- the working process of the Z-axis adjustment driver 5 is as follows: First, the control system issues a command to the Z-axis adjustment driver 5 according to the specific marking requirement to start the motor 52 to perform corresponding operations, and when the motor 52 rotates, the first link 57 is rotated by the rotation shaft. The first link 56 rotates and sequentially drives the second link 57 and the slider 54 to move, so as to drive the second lens 22 to move, thereby changing the distance between the first lens 21 and the second lens 22, and finally reaching Change the position of the laser focus in the Z-axis direction.
- the method includes the following steps:
- control system comprises a computer system, and a 3D model of the marking object is imported into the computer system;
- the pattern to be marked is pasted along the surface of the 3D model, and the pattern is pasted along the first virtual marking surface 7 at the deep hole position when the pattern is pasted to the deep hole position;
- the pattern is pasted to the boundary position, if the pattern pasting position exceeds the boundary, the pattern is pasted on the extended second virtual marking surface 8;
- the computer system marks the corresponding pattern on the corresponding position of the marking object by controlling the galvanometer and the focusing lens group, and adopts the pattern when passing through the deep hole position Directly marking the virtual position of the marking object corresponding to the first virtual marking surface 7 of the 3D model; at the marking boundary, directly marking the pattern with the second virtual marking surface 8 of the 3D model The corresponding virtual position of the marking object.
- the deep hole 6 includes a hole, a perforation or a slit in the marking object, wherein the deep hole 6 may be a semi-closed hole, and the deep hole may also be an edge of the marking object.
- the first virtual marking surface 7 is a virtual marking surface being a straight plane, a curved surface or a wave surface.
- the first virtual marking surface 7 is a straight plane, it represents a straight plane extending from the shortest side to the other side edge and covering the entire deep hole, and the virtual marking surface is mostly established.
- the short-distance linear planar virtual marking surface is used to effectively improve the marking speed and improve the marking efficiency;
- the first virtual marking 7 plane is a curved surface or a waveform In the surface, the first virtual marking surface 7 and the surface of the marking object on the circumferential side of the deep hole 6 are tangent at the joint, and the first virtual marking surface 7 is tangent to the surface of the marking object on the circumferential side of the deep hole 6
- the method includes the following: the angle between the tangent of the first virtual marking surface 7 at the tangent and the horizontal direction is ⁇ , and ⁇ 45 degrees; the first virtual marking surface 7 is at the tangent and the deep hole The distance of the bottom is h, h ⁇ 4 mm; the first virtual marking surface 7 is at least tangentially connected to a certain side of the surface of the marking object on the side of the deep hole 6.
- the first virtual marking surface 7 conforms to the shape of the surface of the marking object on the side of the deep hole 6 , that is, the first virtual marking surface 7 According to the graphic trend of the surface of the marking object, the marking inertia of the marking machine is effectively ensured, and the consistency of the marking is better.
- the second virtual marking surface 8 is a straight plane or a curved surface, and the second virtual marking surface 8 is tangent to the boundary along the marking object, and the second virtual marking surface 8 is struck.
- the boundary of the object extends outward at a distance of at least 3 mm.
- FIG. 9-10 it is a schematic diagram of a specific situation of a second virtual marking surface formed at the boundary of the marking object, wherein the second virtual marking surface of the boundary includes but is not limited to the one shown in the figure.
- the invention creates a virtual marking surface covering the deep hole in the deep hole portion of the marking object having the deep hole structure, and directly marks the pattern to the virtual marking surface when marking the deep hole position, effectively avoiding
- the Z-axis cursor instantaneously jumps over a large distance, thereby avoiding the instantaneous large-scale movement of the driving device of the adjustment driver portion for controlling the Z-axis focusing, greatly reducing the damage to the adjustment driver and prolonging its service life.
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Abstract
Description
Claims (14)
- 一种打标物上具有深孔结构及应用于打标物边界的3D激光打标方法,其特征在于,包括激光器、调焦镜组、振镜和控制系统,所述激光器发出的激光通过所述调焦镜组进行调焦后再经过所述振镜射出,最后射到打标物上对打标物进行打标;所述控制系统通过调节所述振镜从而控制激光焦点在打标物体X和Y方向上的位置;所述控制系统通过控制所述调焦镜组从而控制激光焦点在打标物体Z轴方向上的位置;本方法包括以下步骤:S1:导入打标物的3D模型:所述控制系统包括计算机系统,在计算机系统内导入打标物的3D模型;S2:创建虚拟打标面:对于具有深孔结构的打标物,在打标物的深孔部位上建立一个覆盖深孔位置的第一虚拟打标面;在打标物边界处向外延伸出第二虚拟打标面;S3:导入打标图案:将需要打标的图案导入到所述计算机系统中;S4:贴覆图案:将需要打标的图案沿3D模型的表面贴覆,所述图案在贴覆至深孔位置时,将图案沿深孔位置上的第一虚拟打标面贴覆;所述图案在贴覆至边界位置时,若图案贴覆位置超出了边界,则将图案贴覆在延伸出的第二虚拟打标面上;S5:放置打标物:将与3D模型相应的打标物放置在打标平台上,并校准打标位置;S6:读取图案与3D模型的位置关系:所述计算机系统根据贴覆有图案的3D模型,读取图案与所述打标物的位置关系;S7:对打标物进行打标:所述计算机系统通过控制所述振镜和调焦镜组在打标物的对应位置上打标出对应的图案,通过深孔位置时,将所述图案直接打标在与3D模型第一虚拟打标面所对应的打标物的虚拟位置上;在打标物边界处,将所述图案直接打标在与3D模型第二虚拟打标面所对应的打标物的虚拟位置上。
- 如权利要求1所述的一种打标物上具有深孔结构的3D激光打标方法,其特征在于,所述第一虚拟打标面为直线平面、弧形面或波形面。
- 如权利要求1所述的一种打标物上具有深孔结构的3D激光打标方法,其特征在于,所述第一虚拟打标面为深孔一侧边缘经最短距离延伸到另一侧边缘且覆盖整个深孔的直线平面。
- 如权利要求1所述的一种打标物上具有深孔结构的3D激光打标方法,其特征在于,所述第一虚拟打标面与深孔周侧打标物体的表面在连接处相切。
- 如权利要求4所述的一种打标物上具有深孔结构的3D激光打标方法,其特征在于,所述第一虚拟打标面在相切处的切线与水平方向的夹角为θ,θ≤45度。
- 如权利要求4所述的一种打标物上具有深孔结构的3D激光打标方法,其特征在于,所述第一虚拟打标面在相切处与深孔底部的距离为h,h≥4mm。
- 如权利要求1所述的一种打标物上具有深孔结构的3D激光打标方法,其特征在于,所述第一虚拟打标面至少与深孔周侧打标物体表面的某一侧边相切连接。
- 如权利要求1所述的一种应用于打标物边界的3D激光打标方法,其特征在于,所述第二虚拟打标面为直线平面或弧形面。
- 如权利要求8所述的一种应用于打标物边界的3D激光打标方法,其特征在于,所述第二虚拟打标面沿打标物与边界在连接处相切。
- 如权利要求1所述的一种应用于打标物边界的3D激光打标方法,其特征在于,所述第二虚拟打标面向外延伸的距离至少为3mm。
- 如权利要求1所述的一种应用于打标物边界的3D激光打标方法,其特征在于,所述图案包括图形、文字或者其结合。
- 如权利要求1所述的一种打标物上具有深孔结构的3D激光打标方法,其特征在于,所述调焦镜组包括一组平行且相对设置的第一透镜和第二透镜,所述第一透镜固定不动,第二透镜安装在Z轴调节驱动器上,在所述Z轴调节驱动器的带动下可左右移动从而调节两片镜之间的距离最终达到调节所述激光焦点在打标物体Z轴方向上的位置。
- 如权利要求12所述的一种打标物上具有深孔结构的3D激光打标方法,其特征在于,所述Z轴调节驱动器包括固定座和电机,所述电机固定安装在所述固定座上,所述固定座上设置有条状导轨,导轨上安装有滑块,所述滑块上安装有镜座,所述第二透镜镶嵌在所述镜座上。
- 如权利要求13所述的一种打标物上具有深孔结构的3D激光打标方法,其特征在于,所述电机与转轴连接,所述转轴上连接有驱动装置,所述第一装置包括第一连杆和第二连杆,所述第一连杆一端与转轴连接另一端连接所述第二连杆,所述第二连杆与所述滑块连接,用于带动所述滑块在所述导轨上来回滑动。
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CN201610788568.3 | 2016-08-31 | ||
CN201610784014.6A CN106626848B (zh) | 2016-08-31 | 2016-08-31 | 一种对打标物上深孔结构打标的3d激光打标方法 |
CN201610788568.3A CN106514002B (zh) | 2016-08-31 | 2016-08-31 | 一种应用于打标物边界的3d激光打标方法 |
CN201610784014.6 | 2016-08-31 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110732784A (zh) * | 2019-11-27 | 2020-01-31 | 上海感图网络科技有限公司 | 一种基于人工智能技术的自动激光打标装置及方法 |
CN111673288A (zh) * | 2020-06-30 | 2020-09-18 | 李杏璇 | 一种自动准焦打标切割系统 |
CN117020457A (zh) * | 2023-10-08 | 2023-11-10 | 宁德时代新能源科技股份有限公司 | 焊接系统及焊接系统的点检方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080067251A1 (en) * | 2006-09-15 | 2008-03-20 | Keyence Corporation | Method Of and System For Generating Laser Processing Data, Computer Program For Generating Laser Processing Data and Laser Marking System |
CN101497279A (zh) * | 2009-02-26 | 2009-08-05 | 王晓宇 | 一种测量加工一体化的激光三维打标方法及装置 |
CN102729643A (zh) * | 2011-03-31 | 2012-10-17 | 深圳市大族激光科技股份有限公司 | 一种激光加工三维表面的打标方法及其装置 |
CN204936518U (zh) * | 2015-09-08 | 2016-01-06 | 深圳市荣兴精密激光技术有限公司 | 一种3d激光打标机 |
CN106514002A (zh) * | 2016-08-31 | 2017-03-22 | 广州创乐激光设备有限公司 | 一种应用于打标物边界的3d激光打标方法 |
CN106626848A (zh) * | 2016-08-31 | 2017-05-10 | 广州创乐激光设备有限公司 | 一种打标物上具有深孔结构的3d激光打标方法 |
-
2017
- 2017-08-16 WO PCT/CN2017/097577 patent/WO2018040912A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080067251A1 (en) * | 2006-09-15 | 2008-03-20 | Keyence Corporation | Method Of and System For Generating Laser Processing Data, Computer Program For Generating Laser Processing Data and Laser Marking System |
CN101497279A (zh) * | 2009-02-26 | 2009-08-05 | 王晓宇 | 一种测量加工一体化的激光三维打标方法及装置 |
CN102729643A (zh) * | 2011-03-31 | 2012-10-17 | 深圳市大族激光科技股份有限公司 | 一种激光加工三维表面的打标方法及其装置 |
CN204936518U (zh) * | 2015-09-08 | 2016-01-06 | 深圳市荣兴精密激光技术有限公司 | 一种3d激光打标机 |
CN106514002A (zh) * | 2016-08-31 | 2017-03-22 | 广州创乐激光设备有限公司 | 一种应用于打标物边界的3d激光打标方法 |
CN106626848A (zh) * | 2016-08-31 | 2017-05-10 | 广州创乐激光设备有限公司 | 一种打标物上具有深孔结构的3d激光打标方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110732784A (zh) * | 2019-11-27 | 2020-01-31 | 上海感图网络科技有限公司 | 一种基于人工智能技术的自动激光打标装置及方法 |
CN111673288A (zh) * | 2020-06-30 | 2020-09-18 | 李杏璇 | 一种自动准焦打标切割系统 |
CN117020457A (zh) * | 2023-10-08 | 2023-11-10 | 宁德时代新能源科技股份有限公司 | 焊接系统及焊接系统的点检方法 |
CN117020457B (zh) * | 2023-10-08 | 2024-02-06 | 宁德时代新能源科技股份有限公司 | 焊接系统及焊接系统的点检方法 |
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