CN213410785U - Multi-light-source vision system for coaxial laser processing head - Google Patents
Multi-light-source vision system for coaxial laser processing head Download PDFInfo
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- CN213410785U CN213410785U CN202022433984.6U CN202022433984U CN213410785U CN 213410785 U CN213410785 U CN 213410785U CN 202022433984 U CN202022433984 U CN 202022433984U CN 213410785 U CN213410785 U CN 213410785U
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Abstract
The utility model provides a many light sources vision system for coaxial laser processing head, including annular light source, penetrate circular light source directly, shake mirror, field lens, semi-transparent semi-reflecting mirror, camera lens, shake mirror one end and connect the field lens, the other end sets up semi-transparent semi-reflecting mirror, be provided with on the transmission light path of semi-transparent semi-reflecting mirror and penetrate circular light source directly, be provided with the camera lens on the reverberation road and the camera of being connected with the camera lens, be provided with annular light source between field lens and the material. The utility model discloses beneficial effect: the annular light source and the direct circular light source are arranged, so that the defect of a single light source is overcome, the brightness of different samples is adjusted, the imaging effect is optimized, and the positioning precision is improved; the coaxial imaging mode is adopted, so that errors caused by shaft motion are reduced, and the processing precision is improved; compared with the coaxial scheme of a reflector with the enlarged size below the field lens, the light enters the camera through the field lens and the lens, the space is saved, the processing range is larger, the flexibility is higher, the adjustment is convenient, and the cost is low.
Description
Technical Field
The utility model belongs to the technical field of laser beam machining, especially, relate to a many light sources vision system for coaxial laser beam machining head.
Background
The laser processing system mainly comprises a laser, a plurality of reflecting lenses, a galvanometer, a field lens and a visual system for positioning, wherein the visual system comprises a camera, a lens and a light source. Currently, the common positioning process is as follows:
the vision system collects target images at a preset position, and after the collection is finished, the target position information is transmitted to the processing head; the machining head drives the galvanometer system to a preset position through the motor for machining. In the paraxial alignment mode, a certain offset exists between a processing head and a vision system, so that certain disadvantages are caused: the exchange process of the existing positions of positioning and processing wastes time; and the machining error is increased because there is an error in the movement of the driving shaft.
In addition to the above paraxial alignment, some processing devices add a large-sized mirror under the field lens to reflect the image of the sample to the camera for imaging, but this imaging method also has some disadvantages: firstly, the processing range is limited by the size of the reflector, and the cost is increased along with the increase of the size; when the processing range is large, the size of the reflector is large, the occupied space is large, and the selection of the visual light source is limited, so that the effect is poor; the addition of a mirror under the field lens can interfere with the laser focusing position and increase the processing error.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses aim at overcoming among the prior art among the laser beam machining scheme precision low, long consuming time, the poor problem of formation of image effect, provide a many light sources vision system for coaxial laser beam machining head.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a many light sources vision system for coaxial laser processing head, includes annular light source, penetrates directly circular light source, shakes mirror, field lens, semi-transparent semi-reflecting mirror, camera lens, shake mirror one end and connect the field lens, the other end sets up semi-transparent semi-reflecting mirror, be provided with on the transmission light path of semi-transparent semi-reflecting mirror and penetrate directly circular light source, be provided with the camera lens on the reflection light road and the camera of being connected with the camera lens, be provided with annular light source between field lens and the material.
Furthermore, a laser reflector is arranged between the vibrating mirror and the semi-transparent semi-reflecting mirror, and the semi-transparent semi-reflecting mirror is arranged on a transmission light path of the laser reflector.
Furthermore, a laser is arranged on a reflection light path of the laser reflector.
Further, the field lens is connected to the galvanometer through a bolt.
Further, the annular light source has an outer diameter of 150mm and an inner diameter of 90 mm.
Further, the diameter of the direct circular light source is 20 mm.
Compared with the prior art, the utility model discloses following advantage has:
the multi-light source vision system for the coaxial laser processing head is provided with the annular light source and the direct injection circular light source, the defects of a single light source are overcome, the brightness adjustment is carried out on different samples, the imaging effect is optimized, and the positioning precision is improved; the coaxial imaging mode is adopted, so that errors caused by shaft motion are reduced, and the processing precision is improved; compared with the coaxial scheme of a reflector with the enlarged size below the field lens, the light enters the camera through the field lens and the lens, the space is saved, the processing range is larger, the flexibility is higher, the adjustment is convenient, and the cost is low.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram of a multi-light-source vision system for a coaxial laser processing head according to an embodiment of the present invention.
Description of reference numerals:
1-a galvanometer; 2-a field lens; 3-a ring light source; 4-a laser mirror; 5-a half-transmitting half-reflecting mirror; 6-direct projection of a circular light source; 7-a camera; 8-lens; 9-laser.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, a multi-light source vision system for a coaxial laser processing head includes an annular light source 3, a direct circular light source 6, a vibrating mirror 1, a field lens 2, a semi-transparent and semi-reflective lens 5, a camera 7 and a lens 8, wherein one end of the vibrating mirror 1 is connected with the field lens 2, the other end of the vibrating mirror is provided with the semi-transparent and semi-reflective lens 5, the direct circular light source 6 is arranged on a transmission light path of the semi-transparent and semi-reflective lens 5, the lens 8 and the camera 7 connected with the lens 8 are arranged on a reflection light path, and the annular light source 3 is arranged between the. The annular light source 3 is used as a low-angle light source and mainly focuses on imaging the outline of a sample, the direct injection circular light source 6 focuses on imaging a high-reflection material on the surface, and the effects of the two light sources are complementary.
In this embodiment, a laser mirror 4 is provided between the galvanometer 1 and the half mirror 5, and the half mirror 5 is provided on a transmission light path of the laser mirror 4.
In this embodiment, a laser 9 is disposed on a reflection light path of the laser mirror 4, and laser emitted by the laser 9 is used for laser processing of a material.
In this embodiment, the field lens 2 is connected to the galvanometer 1 by a bolt.
In this embodiment, the annular light source 3 has an outer diameter of 150mm and an inner diameter of 90mm, and the direct circular light source 6 has a diameter of 20 mm.
In the embodiment, the field lens 2 participates in visual imaging; the height of the annular light source 3 can be adjusted, and the annular light source is used for material identification and target positioning; the laser reflector 4 has high reflectivity to laser, reflects the laser emitted by the laser 9 to the light inlet of the vibrating mirror 1, and increases the reflection of the wavelengths corresponding to the two visual light sources, namely the annular light source 3 and the direct circular light source 6; the semi-transparent semi-reflecting mirror 5 carries out 50% on the wavelengths corresponding to the annular light source 3 and the direct circular light source 6: 50, a part of the light rays are reflected upwards to a lens 8 and a camera 7 for imaging; the divergence angle of the direct circular light source 6 is adjustable, the direct circular light source 6 can meet different view field requirements, a part of light rays are converged on materials on a material platform through the semi-transparent semi-reflecting mirror 5, the laser reflecting mirror 4, the vibrating mirror 1 and the field lens 2 to form a part of high-brightness area to irradiate the materials, and reflected light rays of the materials enter a lens 8 and a camera 7 to form images through the field lens 2, the vibrating mirror 1, the laser reflecting mirror 4 and the semi-transparent semi-reflecting mirror 5; the cameras 7 with different target surface sizes can be selected according to the size of the view field; the lens 8 participates in visual imaging, sample reflected light is focused on a camera 7 chip, and the lens 8 with different focal lengths can be selected according to the size of a view field.
The working process of the embodiment is as follows:
light beams emitted by a direct circular light source 6 are irradiated on a material through a semi-transparent semi-reflecting mirror 5, a laser reflecting mirror 4, a vibrating mirror 1 and a field lens 2 to form light spots; the annular light source 3 directly irradiates the material to form light spots; the reflected beams of the two light spots reach the semi-transparent and semi-reflective mirror 5 through the field lens 2, the vibrating mirror 1 and the laser reflector 4, are finally reflected through the semi-transparent and semi-reflective mirror 5, are reflected into the lens 8 for imaging, and are observed through the camera 7 for imaging effect; and finally, the laser 9 emits laser, the laser enters the light inlet of the vibrating mirror 1 under the reflection of the laser reflector 4, and the laser processing is carried out on the material after passing through the vibrating mirror 1 and the field lens 2. Finally, the processing effect of the laser can also be observed by the camera 7.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A multi-light source vision system for a coaxial laser processing head, characterized by: including annular light source (3), direct injection circular light source (6), mirror (1), field lens (2), semi-transparent semi-reflecting mirror (5), camera (7), camera lens (8), mirror (1) one end that shakes is connected field lens (2), and the other end sets up semi-transparent semi-reflecting mirror (5), be provided with direct injection circular light source (6) on the transmission light path of semi-transparent semi-reflecting mirror (5), be provided with camera lens (8) and camera (7) of being connected with camera lens (8) on the reflection light path, be provided with annular light source (3) between field lens (2) and the material.
2. A multi-light-source vision system for a coaxial laser processing head as defined in claim 1 wherein: a laser reflector (4) is arranged between the vibrating mirror (1) and the semi-transparent semi-reflecting mirror (5), and the semi-transparent semi-reflecting mirror (5) is arranged on a transmission light path of the laser reflector (4).
3. A multi-light-source vision system for a coaxial laser processing head as defined in claim 2 wherein: and a laser (9) is arranged on a reflection light path of the laser reflector (4).
4. A multi-light-source vision system for a coaxial laser processing head as defined in claim 1 wherein: the field lens (2) is connected to the galvanometer (1) through a bolt.
5. A multi-light-source vision system for a coaxial laser processing head as defined in claim 1 wherein: the annular light source (3) is 150mm in outer diameter and 90mm in inner diameter.
6. A multi-light-source vision system for a coaxial laser processing head as defined in claim 1 wherein: the diameter of the direct circular light source (6) is 20 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022433984.6U CN213410785U (en) | 2020-10-28 | 2020-10-28 | Multi-light-source vision system for coaxial laser processing head |
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| CN202022433984.6U CN213410785U (en) | 2020-10-28 | 2020-10-28 | Multi-light-source vision system for coaxial laser processing head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951972A (en) * | 2022-05-27 | 2022-08-30 | 深圳泰德激光技术股份有限公司 | Optical path system and laser cutting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951972A (en) * | 2022-05-27 | 2022-08-30 | 深圳泰德激光技术股份有限公司 | Optical path system and laser cutting machine |
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