Integrated vision laser optical system
By integrating a vision-based laser optical system, combining a global vision module and a coaxial vision module, the problem of difficulty in guaranteeing accuracy in traditional laser marking of complex workpieces and high-precision marking has been solved, and high-precision marking of complex workpieces has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU FREEZING POINT TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional laser marking is difficult to guarantee accuracy when dealing with complex workpieces or high-precision marking requirements, as it is affected by workpiece tolerances and random positional factors.
The laser optical system employs integrated vision, including a frame, a laser optical module, a global vision module, and a coaxial vision module. The global vision module performs full-field 3D imaging, while the coaxial vision module performs local high-definition image acquisition, enabling precise workpiece positioning and high-precision marking.
It achieves high-precision marking on complex workpieces, meeting the precision requirements of laser processing. Through the three-dimensional imaging of the global vision module and the high-definition image acquisition of the coaxial vision module, the processing accuracy and effect are improved.
Smart Images
Figure CN224475722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser processing technology, and in particular to a laser optical system with integrated vision. Background Technology
[0002] Laser marking, an important application in the field of laser processing, uses high-energy-density laser light to locally irradiate a workpiece, causing the surface material to vaporize or change color, thus leaving a permanent mark. It can produce a variety of texts, symbols, and patterns, with a wide range of character sizes, and is suitable for various materials. It also boasts advantages such as non-contact processing, no workpiece deformation, and no internal stress.
[0003] However, traditional laser marking has limitations when dealing with complex workpieces or high-precision marking requirements. Accuracy is difficult to guarantee due to workpiece tolerances and random positional factors. With increasing demands for automation and high precision in industrial production, integrated vision technology has become key to solving this problem. Utility Model Content
[0004] To address the aforementioned problems in the prior art, this utility model provides an integrated vision laser optical system that meets the marking requirements of laser processing for complex workpieces and high precision.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] In a first aspect, this utility model provides an integrated vision laser optical system, including a frame and a laser optical module, a global vision module, and a coaxial vision module mounted on the frame. The laser optical module includes a laser incident component, a Z-axis component, a beam combining component, and an XY-axis component distributed sequentially along the laser incident direction. The beam combining component includes a beam combining mirror. The side of the beam combining mirror facing the Z-axis component has a first coating for direct laser beam passage, and the side of the beam combining mirror facing the XY-axis component has a tilted design for reflecting light to the coaxial vision module.
[0007] The field of view of the global vision module and the illumination direction in the XY axis assembly are oriented toward the working area.
[0008] The beneficial effects of this utility model are as follows: Before processing, the global vision module performs full-field three-dimensional imaging of the workpiece to be processed in the working area to meet the visual positioning and three-dimensional trajectory generation of the workpiece during laser processing; after processing, the coaxial vision module performs high-definition image acquisition of the local field of view to achieve functions such as local image acquisition and archiving and processing detection, thereby meeting the laser processing requirements for complex workpieces and high-precision marking.
[0009] Optionally, the laser incident assembly includes an incident clamp, a first laser head, a first reflector, and a first reflection adjustment mechanism. The first laser head is fixed to the incident clamp, the first reflector is mounted on the incident clamp via the first reflection adjustment mechanism, and the incident clamp is mounted on the frame.
[0010] The laser beam from the first laser head is reflected by the first reflector and then directed toward the Z-axis assembly.
[0011] Optionally, the first reflection adjustment mechanism includes a first reflection fixing seat, a first reflection bolt pair, a first reflection fixing screw, a first reflection compression spring, and a first reflection adjustment seat fixedly connected to the incident clamp. The first reflector is mounted on the first reflection adjustment seat, and the first reflection fixing seat is located on the side of the first reflection adjustment seat away from the laser incident point. The first reflection bolt pair and the first reflection fixing screw both pass through the first reflection fixing seat. One end of the first reflection bolt pair passing through the first reflection fixing seat is in contact with the first reflection adjustment seat. One end of the first reflection fixing screw passing through the first reflection fixing seat is threadedly connected to the first reflection adjustment seat. The first reflection compression spring is sleeved on the outside between the nut on the first reflection fixing screw and the first reflection fixing seat.
[0012] Optionally, the laser incident assembly includes a tightening ring, a second laser head, a direct-fire fixing base, and a lateral adjustment mechanism. The second laser head is fixed to the tightening ring, and the tightening ring is mounted on the direct-fire fixing base via the lateral adjustment mechanism.
[0013] The laser from the second laser head is incident linearly on the Z-axis assembly, and the direct-shoot mounting base is mounted on the frame.
[0014] Optionally, the lateral adjustment mechanism includes a lateral adjustment seat and a direct-fire adjustment screw. The tightening ring is fixed to the lateral adjustment seat. The lateral adjustment seat is provided with a plurality of racetrack-shaped through holes. The direct-fire adjustment screw passes through the racetrack-shaped through holes of the lateral adjustment seat and is threadedly connected to the direct-fire fixing seat.
[0015] Optionally, the Z-axis assembly includes a Z-axis fixed base, a Z-axis motor, a swing link, a slider, a slide rail, a Z-axis dynamic galvanometer, and a Z-axis focusing lens. The Z-axis motor and the swing link are mounted on the Z-axis fixed base. The Z-axis motor is connected to one end of the swing link, and the other end of the swing link is connected to the slider. The slider is slidably connected to the slide rail. The Z-axis dynamic galvanometer is mounted on the slider. The Z-axis focusing lens is positioned between the Z-axis dynamic galvanometer and the beam combining assembly. The Z-axis focusing lens, the Z-axis dynamic galvanometer, and the beam combining assembly are aligned and arranged in a direction parallel to the sliding direction of the slider.
[0016] The XY axis assembly includes an XY axis mounting base, an X-axis galvanometer, and a Y-axis galvanometer, with the X-axis galvanometer and the Y-axis galvanometer located within the XY axis mounting base.
[0017] Optionally, the beam combining assembly further includes a beam combining adjustment mechanism, and the beam combining mirror is mounted on the beam combining adjustment mechanism.
[0018] Optionally, the global vision module includes a global vision mounting base and a structure light engine, a first 3D camera, a second 3D camera, and a 2D camera mounted on the global vision mounting base, wherein the field of view of the structure light engine, the first 3D camera, the second 3D camera, and the 2D camera faces the working area.
[0019] Optionally, the coaxial vision module includes a coaxial mounting base, a second reflector, a second reflection adjustment mechanism, a coaxial clamping base, a coaxial lens, and a coaxial camera. The second reflector is located on the second reflection adjustment mechanism. One end of the coaxial lens is fixed between the coaxial clamping base and the coaxial mounting base, and the other end is connected to the coaxial camera.
[0020] The direction of the reflected light from the beam combiner in the beam combiner assembly is aligned with the direction of the reflected light from the second mirror, and the direction of the reflected light from the second mirror is aligned with the coaxial lens.
[0021] The second reflection adjustment mechanism includes a second reflection adjustment seat, a second reflection bolt pair, a second reflection fixing screw, and a second reflection compression spring. The second reflector is mounted on the inward side of the second reflection adjustment seat. The second reflection bolt pair and the second reflection fixing screw both pass through the second reflection adjustment seat. One end of the second reflection bolt pair passing through the second reflection adjustment seat is in contact with the coaxial fixing seat. One end of the second reflection fixing screw passing through the second reflection adjustment seat is threadedly connected to the coaxial fixing seat. The second reflection compression spring is sleeved on the outside of the second reflection fixing screw between the nut and the second reflection adjustment seat.
[0022] Optionally, the laser incident component is disposed outside the first side of the frame, the coaxial vision module is disposed outside the second side of the frame, an opening is provided on the third side of the frame opposite to the second side, and the global vision module, the Z-axis component, the beam combining component, and the XY-axis component are disposed on the third side of the frame.
[0023] The field of view of the global vision module and the illumination direction in the XY axis assembly are directed toward the working area through the opening. Attached Figure Description
[0024] Figure 1This is an overall schematic diagram of a laser optical system with integrated vision according to an embodiment of the present invention;
[0025] Figure 2 This is an internal schematic diagram of an integrated vision laser optical system according to an embodiment of the present invention;
[0026] Figure 3 This is a schematic diagram of the structure of the laser incident component according to an embodiment of the present utility model;
[0027] Figure 4 This is a schematic diagram of the Z-axis assembly involved in an embodiment of the present utility model;
[0028] Figure 5 This is a schematic diagram of the bundle combining assembly according to an embodiment of the present utility model;
[0029] Figure 6 This is a schematic diagram of the XY axis assembly involved in an embodiment of the present utility model;
[0030] Figure 7 This is a schematic diagram of the structure of the global vision module involved in an embodiment of the present utility model;
[0031] Figure 8 This is a schematic diagram of the coaxial vision module involved in an embodiment of the present utility model;
[0032] Figure 9 This is a disassembly diagram of the coaxial vision module involved in an embodiment of the present utility model;
[0033] Figure 10 This is an overall schematic diagram of an integrated vision laser optical system according to another embodiment of the present invention;
[0034] Figure 11 This is a schematic diagram of the structure of a laser incident component according to another embodiment of the present invention.
[0035] Explanation of reference numerals in the attached figures:
[0036] 1. Frame; 11. Opening;
[0037] 2. Laser optical module;
[0038] 21. Laser incident assembly;
[0039] 211. Incident clamp; 212. First reflection adjustment mechanism; 2121. First reflection fixing seat; 2122. First reflection bolt pair; 2123. First reflection fixing screw; 2124. First reflection compression spring; 2125. First reflection adjustment seat;
[0040] 213. Tightening ring; 214. Direct-fire fixing seat; 215. Lateral adjustment mechanism; 2151. Lateral adjustment seat; 2152. Direct-fire adjusting screw; 2153. Racetrack-shaped through hole;
[0041] 22. Z-axis assembly; 221. Z-axis mounting base; 222. Z-axis motor; 223. Swing linkage; 224. Slider; 225. Slide rail; 226. Z-axis dynamic galvanometer; 227. Z-axis focusing lens;
[0042] 23. Bundle assembly; 231. Bundle mirror; 232. Bundle adjustment mechanism; 2321. Bundle adjustment seat; 2322. Bundle bolt pair; 2323. Bundle fixing screw; 2324. Bundle compression spring;
[0043] 24. XY axis assembly; 241. XY axis mounting bracket; 242. X-axis galvanometer; 243. Y-axis galvanometer;
[0044] 3. Global vision module; 31. Global vision mounting base; 32. Structured light engine; 33. First 3D camera; 34. Second 3D camera; 35. 2D camera;
[0045] 4. Coaxial vision module; 41. Coaxial mounting base; 42. Second reflection adjustment mechanism; 421. Second reflection adjustment base; 422. Second reflection bolt pair; 423. Second reflection fixing screw; 424. Second reflection compression spring; 43. Coaxial clamping base; 44. Coaxial lens; 45. Coaxial camera. Detailed Implementation
[0046] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.
[0047] Example 1
[0048] Please refer to Figures 1 to 9 A laser optical system integrating vision, such as Figure 2As shown, the system includes a frame 1 and a laser optical module 2, a global vision module 3, and a coaxial vision module 4 mounted on the frame 1. The laser optical module 2 includes a laser incident component 21, a Z-axis component 22, a beam combiner component 23, and an XY-axis component 24, which are sequentially distributed along the laser incident direction. The beam combiner component 23 includes a beam combiner lens 231. The side of the beam combiner lens 231 facing the Z-axis component 22 has a first coating that allows direct laser light to pass through, and the side of the beam combiner lens 231 facing the XY-axis component 24 has a tilted design that allows reflected light to be reflected to the coaxial vision module 4, resulting in a second coating. The field of view of the global vision module 3 and the illumination direction in the XY-axis component 24 are oriented towards the working area.
[0049] like Figure 1 and Figure 2 As shown, the laser incident component 21 is disposed on the outer side of the first side of the frame 1, i.e. Figure 1 The front side of the frame 1 is outside; the coaxial vision module 4 is set on the second side outside the frame 1, that is... Figure 1 An opening 11 is provided on the top side of the frame 1, opposite to the second side, i.e. Figure 1 An opening 11 is provided on the bottom side of the frame 1; the global vision module 3, the Z-axis assembly 22, the beam combining assembly 23, and the XY-axis assembly 24 are arranged on the third side of the frame 1. The field of view of the global vision module 3 and the illumination direction of the XY-axis assembly 24 are directed toward the working area through the opening 11.
[0050] Therefore, referring to Figure 2 As can be seen, the beam combiner 231 utilizes the selective beam splitting characteristics of the optical coating, combined with a specific optical path angle design, such as a 45° tilt design in this embodiment. On one hand, for the laser wavelength: the first coating is designed with high transmittance, allowing the incident laser to pass from left to right and enter the XY axis assembly 24 for laser marking. On the other hand, for the wavelength of the reflected light required by the camera: the second coating is designed with high reflectance, allowing only the camera-reflected light to travel from right to left, and after reflection by the beam combiner 231, it ascends vertically upwards and enters the coaxial vision module 4. The coaxial design of the laser and the camera is achieved through the beam combiner design.
[0051] like Figure 3 As shown, the laser incident assembly 21 includes an incident clamp 211, a first laser head, a first reflector, and a first reflection adjustment mechanism 212. The first laser head is fixed to the incident clamp 211, and the first reflector is mounted on the incident clamp 211 via the first reflection adjustment mechanism 212. The incident clamp 211 is mounted on the frame 1. The laser beam from the first laser head is reflected by the first reflector and then directed towards the Z-axis assembly 22. That is, this embodiment uses a laser reflection scheme for laser incident illumination.
[0052] In this embodiment, the first laser head and the first reflector are not shown in the figures. The first laser head is a fiber optic laser head. Thus, the laser light generated by the laser is transmitted to the first laser head via optical fiber, and after initial collimation at the output end of the first laser head, it is emitted to form an initial beam. The initial beam is incident on the first reflector, and the mirror reflects the laser light according to the target position, changing the propagation path to ensure that the laser light points towards the target area, ultimately achieving precise laser incidence.
[0053] In other embodiments, a first beam expander may be disposed between the first laser head and the first reflector. In this case, the first laser head and the first beam expander are arranged in a straight line on the incident clamp 211. The laser beam from the first laser head passes through the first beam expander and then enters the first reflector. The reflected light from the first reflector is directed toward the Z-axis assembly 22. The first beam expander adjusts the diameter and divergence angle of the initial beam through a lens group to improve collimation.
[0054] Specifically, the first reflection adjustment mechanism 212 includes a first reflection fixing seat 2121, a first reflection bolt pair 2122, a first reflection fixing screw 2123, a first reflection compression spring 2124, and a first reflection adjustment seat 2125 fixedly connected to the incident clamp seat 211. The first reflector is mounted on the first reflection adjustment seat 2125. The first reflection fixing seat 2121 is located on the side of the first reflection adjustment seat 2125 away from the laser incident point. The first reflection bolt pair 2122 and the first reflection fixing screw 2123 both pass through the first reflection fixing seat 2121. One end of the first reflection bolt pair 2122 passing through the first reflection fixing seat 2121 is in contact with the first reflection adjustment seat 2125. One end of the first reflection fixing screw 2123 passing through the first reflection fixing seat 2121 is threadedly connected to the first reflection adjustment seat 2125. The first reflection compression spring 2124 is sleeved on the outside of the first reflection fixing screw 2123 between the nut and the first reflection fixing seat 2121.
[0055] Therefore, by screwing in the first reflective bolt assembly 2122 to press against the first reflective adjusting seat 2125, the position of the first reflective adjusting seat 2125 can be adjusted. The first reflective fixing screw 2123 and the first reflective adjusting seat 2125 are mutually fixed through threaded engagement, and tension is provided by the first reflective compression spring 2124, thereby mechanically adjusting the laser head alignment and optical path perpendicularity. In this embodiment, the first reflective bolt assembly 2122 is a finished product, with its internally threaded sleeve fitted onto the first reflective fixing seat 2121. The bolt on it is threadedly connected to the internally threaded sleeve and abuts against the first reflective adjusting seat 2125. A locking element is also provided on it to prevent loosening. The same applies to the bolt assemblies below.
[0056] like Figure 4As shown, the Z-axis assembly 22 includes a Z-axis fixed base 221, a Z-axis motor 222, a swing link 223, a slider 224, a slide rail 225, a Z-axis dynamic galvanometer 226, and a Z-axis focusing lens 227. The Z-axis motor 222 and the swing link 223 are mounted on the Z-axis fixed base 221. The Z-axis motor 222 is connected to one end of the swing link 223, and the other end of the swing link 223 is connected to the slider 224. The slider 224 is slidably connected to the slide rail 225. The Z-axis dynamic galvanometer 226 is mounted on the slider 224. The Z-axis focusing lens 227 is positioned between the Z-axis dynamic galvanometer 226 and the beam combining assembly 23. The Z-axis focusing lens 227, the Z-axis dynamic galvanometer 226, and the beam combining assembly 23 are aligned and arranged in a direction parallel to the sliding direction of the slider 224.
[0057] Thus, by rapidly swinging the Z-axis motor 222, the Z-axis dynamic galvanometer 226 is driven to move linearly on the slide rail 225, which, together with the Z-axis focusing lens 227, completes the dynamic focusing of the laser.
[0058] like Figure 5 As shown, the bundle combining assembly 23 also includes a bundle combining adjustment mechanism 232, and a bundle combining mirror 231 is mounted on the bundle combining adjustment mechanism 232. Specifically, the bundle combining adjustment mechanism 232 includes a bundle combining adjustment seat 2321, a bundle combining bolt pair 2322, a bundle combining fixing screw 2323, and a bundle combining compression spring 2324. The bundle combining mirror 231 is mounted on the bundle combining adjustment seat 2321. Both the bundle combining bolt pair 2322 and the bundle combining fixing screw 2323 pass through the bundle combining adjustment seat 2321. One end of the bundle combining bolt pair 2322 passes through the bundle combining adjustment seat 2321 and abuts against the bottom side of the frame 1. One end of the bundle combining fixing screw 2323 passes through the bundle combining adjustment seat 2321 and is threadedly connected to the bottom side of the frame 1. The bundle combining compression spring 2324 is sleeved on the outside of the bundle combining fixing screw 2323 between the nut and the bundle combining adjustment seat 2321.
[0059] like Figure 6 As shown, the XY axis assembly 24 includes an XY axis mounting base 241, an X-axis galvanometer 242, and a Y-axis galvanometer 243, with the X-axis galvanometer 242 and the Y-axis galvanometer 243 located within the XY axis mounting base 241.
[0060] The galvanometer includes a motor and a reflector, which guides the laser to a designated position through the X-axis galvanometer 242 and the Y-axis galvanometer 243. Combined with the Z-axis component 22 above, it enables the laser to move precisely in a three-dimensional view.
[0061] like Figure 7As shown, the global vision module 3 includes a global vision mounting base 31 and a structure light machine 32, a first 3D camera 33, a second 3D camera 34 and a 2D camera 35 mounted on the global vision mounting base 31. The field of view of the structure light machine 32, the first 3D camera 33, the second 3D camera 34 and the 2D camera 35 are oriented toward the working area.
[0062] Therefore, before processing, a two-dimensional image is captured by a two-dimensional camera 35. The image can be uploaded to computer software for marking pattern alignment or automatic planar positioning of the workpiece. Through the cooperation of the first three-dimensional camera 33 and the second three-dimensional camera 34, a full-view three-dimensional image of the workpiece to be processed in the working area is achieved. The three-dimensional imaging data can be used to attach the marking pattern to the surface of the workpiece, forming a laser processing trajectory.
[0063] like Figure 8 As shown, the coaxial vision module 4 includes a coaxial mounting base 41, a second reflector, a second reflection adjustment mechanism 42, a coaxial clamping base 43, a coaxial lens 44, and a coaxial camera 45. The second reflector is located on the second reflection adjustment mechanism 42. One end of the coaxial lens 44 is fixed between the coaxial clamping base 43 and the coaxial mounting base 41, and the other end is connected to the coaxial camera 45. The reflected light direction of the beam combiner 231 in the beam combiner assembly 23 is aligned with the second reflector, and the reflected light direction of the second reflector is aligned with the coaxial lens 44.
[0064] Specifically, such as Figure 9 As shown, the second reflection adjustment mechanism 42 includes a second reflection adjustment seat 421, a second reflection bolt pair 422, a second reflection fixing screw 423, and a second reflection compression spring 424. The second reflector is mounted on the second reflection adjustment seat 421. Both the second reflection bolt pair 422 and the second reflection fixing screw 423 pass through the second reflection adjustment seat 421. One end of the second reflection bolt pair 422, passing through the second reflection adjustment seat 421, is in contact with the coaxial fixing seat 41. One end of the second reflection fixing screw 423, passing through the second reflection adjustment seat 421, is threadedly connected to the coaxial fixing seat 41. The second reflection compression spring 424 is sleeved on the outside of the second reflection fixing screw 423 between the nut and the second reflection adjustment seat 421. In this embodiment, the coaxial fixing seat 41 has a slot for the vertical part of the T-shaped second reflection adjustment mechanism 42 to be inserted and fitted, and the two lateral ends of the second reflection adjustment mechanism 42 are in contact with the platforms on both sides of the slot for adjustment and fixed connection. In other embodiments, a separate second reflection mounting base may be provided on the coaxial mounting base 41 to cooperate with the second reflection adjustment mechanism 42.
[0065] Therefore, after processing, high-definition images of the local field of view are acquired through the coaxial vision module 4, which are used for functions such as local image acquisition and archiving, and processing detection.
[0066] Example 2
[0067] Please refer to Figures 3 to 11 A laser optical system integrating vision, such as Figure 11 As shown, in this embodiment, the laser incident component 21' is still located on the side of the frame 1, and the coaxial vision module 4' is still located above the frame 1. However, in this embodiment, the laser incident component 21' uses a direct laser incident method.
[0068] Specifically, the laser incident assembly 21' includes a tightening ring 213, a second laser head, a direct-fire mounting base 214, and a lateral adjustment mechanism 215. The second laser head is fixed to the tightening ring 213, which is mounted on the direct-fire mounting base 214 via the lateral adjustment mechanism 215. The laser from the second laser head is linearly incident on the Z-axis assembly 22, and the direct-fire mounting base 214 is mounted on the frame 1. A second beam expander can also be placed after the second laser head in the tightening ring 213. In this case, the laser from the second laser head is linearly incident on the Z-axis assembly 22 after passing through the second beam expander.
[0069] Combination Figure 11 It can be seen that the lateral adjustment mechanism 215 includes a lateral adjustment seat 2151 and a direct-fire adjustment screw 2152. The tightening ring 213 is fixed to the lateral adjustment seat 2151. The lateral adjustment seat 2151 is provided with multiple racetrack-shaped through holes 2153. The direct-fire adjustment screw 2152 passes through the racetrack-shaped through holes 2153 of the lateral adjustment seat 2151 and is threadedly connected to the direct-fire fixing seat 214.
[0070] Therefore, by adjusting the position of the direct-fire adjustment screw 2152 at the racetrack-shaped through hole 2153, the incident position of the second laser head can be adjusted laterally.
[0071] Other implementations can be carried out by referring to Example 1.
[0072] In summary, this embodiment can simultaneously perform full-field 2D imaging, 3D imaging, and small-field 2D imaging. It can meet the needs of workpiece visual positioning, 3D trajectory generation, post-processing local image acquisition and archiving, and processing inspection during laser processing, thereby satisfying the laser processing requirements for complex workpieces and high-precision marking.
[0073] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0074] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0075] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0076] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0077] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A laser optical system with integrated vision, characterized in that, The system includes a frame and a laser optical module, a global vision module, and a coaxial vision module mounted on the frame. The laser optical module includes a laser incident component, a Z-axis component, a beam combining component, and an XY-axis component arranged sequentially along the laser incident direction. The beam combining component includes a beam combining mirror. The side of the beam combining mirror facing the Z-axis component has a first coating that allows direct laser light to pass through, and the side of the beam combining mirror facing the XY-axis component has a tilted design that allows reflected light to be reflected to the coaxial vision module. The field of view of the global vision module and the illumination direction in the XY axis assembly are oriented toward the working area.
2. The laser optical system with integrated vision according to claim 1, characterized in that, The laser incident assembly includes an incident clamp, a first laser head, a first reflector, and a first reflection adjustment mechanism. The first laser head is fixed to the incident clamp, the first reflector is mounted on the incident clamp via the first reflection adjustment mechanism, and the incident clamp is mounted on the frame. The laser beam from the first laser head is reflected by the first reflector and then directed toward the Z-axis assembly.
3. The laser optical system with integrated vision according to claim 2, characterized in that, The first reflection adjustment mechanism includes a first reflection adjustment seat, a first reflection bolt pair, a first reflection fixing screw, a first reflection compression spring, and a first reflection fixing seat fixedly connected to the incident clamp. The first reflector is mounted on the first reflection adjustment seat, and the first reflection fixing seat is located on the side of the first reflection adjustment seat away from the laser incident. The first reflection bolt pair and the first reflection fixing screw both pass through the first reflection fixing seat. One end of the first reflection bolt pair passing through the first reflection fixing seat is in contact with the first reflection adjustment seat. One end of the first reflection fixing screw passing through the first reflection fixing seat is threadedly connected to the first reflection adjustment seat. The first reflection compression spring is sleeved on the outside between the nut on the first reflection fixing screw and the first reflection fixing seat.
4. The laser optical system with integrated vision according to claim 1, characterized in that, The laser incident assembly includes a tightening ring, a second laser head, a direct-fire fixing base, and a lateral adjustment mechanism. The second laser head is fixed to the tightening ring, and the tightening ring is mounted to the direct-fire fixing base via the lateral adjustment mechanism. The laser from the second laser head is incident linearly on the Z-axis assembly, and the direct-shoot mounting base is mounted on the frame.
5. The laser optical system with integrated vision according to claim 4, characterized in that, The lateral adjustment mechanism includes a lateral adjustment seat and a direct-fire adjustment screw. The tightening ring is fixed to the lateral adjustment seat. The lateral adjustment seat is provided with multiple racetrack-shaped through holes. The direct-fire adjustment screw passes through the racetrack-shaped through holes of the lateral adjustment seat and is threadedly connected to the direct-fire fixing seat.
6. The laser optical system with integrated vision according to claim 1, characterized in that, The Z-axis assembly includes a Z-axis fixed base, a Z-axis motor, a swing link, a slider, a slide rail, a Z-axis dynamic galvanometer, and a Z-axis focusing lens. The Z-axis motor and the swing link are mounted on the Z-axis fixed base. The Z-axis motor is connected to one end of the swing link, and the other end of the swing link is connected to the slider. The slider is slidably connected to the slide rail. The Z-axis dynamic galvanometer is mounted on the slider. The Z-axis focusing lens is positioned between the Z-axis dynamic galvanometer and the beam combining assembly. The Z-axis focusing lens, the Z-axis dynamic galvanometer, and the beam combining assembly are aligned and arranged in a direction parallel to the sliding direction of the slider. The XY axis assembly includes an XY axis mounting base, an X-axis galvanometer, and a Y-axis galvanometer, with the X-axis galvanometer and the Y-axis galvanometer located within the XY axis mounting base.
7. The laser optical system with integrated vision according to claim 1, characterized in that, The beam combining assembly further includes a beam combining adjustment mechanism, and the beam combining mirror is mounted on the beam combining adjustment mechanism.
8. The laser optical system with integrated vision according to claim 1, characterized in that, The global vision module includes a global vision mounting base and a structure light engine, a first 3D camera, a second 3D camera, and a 2D camera mounted on the global vision mounting base. The field of view of the structure light engine, the first 3D camera, the second 3D camera, and the 2D camera is oriented towards the working area.
9. The laser optical system with integrated vision according to claim 1, characterized in that, The coaxial vision module includes a coaxial mounting base, a second reflector, a second reflection adjustment mechanism, a coaxial clamping base, a coaxial lens, and a coaxial camera. The second reflector is located on the second reflection adjustment mechanism. One end of the coaxial lens is fixed between the coaxial clamping base and the coaxial mounting base, and the other end is connected to the coaxial camera. The direction of the reflected light from the beam combiner in the beam combiner assembly is aligned with the direction of the reflected light from the second mirror, and the direction of the reflected light from the second mirror is aligned with the coaxial lens. The second reflection adjustment mechanism includes a second reflection adjustment seat, a second reflection bolt pair, a second reflection fixing screw, and a second reflection compression spring. The second reflector is mounted on the inward side of the second reflection adjustment seat. The second reflection bolt pair and the second reflection fixing screw both pass through the second reflection adjustment seat. One end of the second reflection bolt pair passing through the second reflection adjustment seat is in contact with the coaxial fixing seat. One end of the second reflection fixing screw passing through the second reflection adjustment seat is threadedly connected to the coaxial fixing seat. The second reflection compression spring is sleeved on the outside of the second reflection fixing screw between the nut and the second reflection adjustment seat.
10. A laser optical system for integrated vision according to any one of claims 1 to 9, characterized in that, The laser incident component is disposed outside the first side of the frame, the coaxial vision module is disposed outside the second side of the frame, and an opening is provided on the third side of the frame opposite to the second side. The global vision module, the Z-axis component, the beam combining component, and the XY-axis component are disposed on the third side of the frame. The field of view of the global vision module and the illumination direction in the XY axis assembly are directed toward the working area through the opening.