CN103743751A - Unbeveledend butt weld detection system based on reflecting two-way converging adjustable light path - Google Patents
Unbeveledend butt weld detection system based on reflecting two-way converging adjustable light path Download PDFInfo
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- CN103743751A CN103743751A CN201410017867.8A CN201410017867A CN103743751A CN 103743751 A CN103743751 A CN 103743751A CN 201410017867 A CN201410017867 A CN 201410017867A CN 103743751 A CN103743751 A CN 103743751A
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Abstract
The invention relates to an unbeveledend butt weld detection system based on a reflecting two-way converging adjustable light path. The detection system comprises an imaging device and an image controller connected with the imaging device, wherein two light source generators are symmetrically and fixedly arranged at two sides of the imaging device, prisms are arranged right below light exits of the light source generators, the prisms can rotate around the vertical direction so as to form certain angle, the light ray emitted by the light source generators is firstly refracted by the prisms, then passes through a plate to be detected and enters the imaging device, an image formed by the imaging device is transmitted to the image controller by the imaging device, the image controller processes the received image so as to obtain a high definition weld inspection image. According to the detection system, the illumination intensity can be enhanced, and the influence of the shadow generated by irradiating the weld joint by one-way light on welding position detection can be also avoided; due to the adoption of refraction prisms, the size of the system can be reduced, laser can avoid the influence of chromatic dispersion caused by prism refraction on image resolution, and weld joint images with high contrast can be obtained.
Description
Technical field
The present invention relates to weld seam detection field, be specially a kind of plain butt weld seam detection system of assembling adjustable light path based on refraction type two-way.
Background technology
In Automation of Welding field, usually need the thin plate class weld seams such as aluminium sheet, corrosion resistant plate to carry out automatic welding, the common square groove of such weld seam, weld gap is Huo little gap, zero stand-off (within 0 ~ 1mm), and the requirement of real-time, precision and reliability that butt welded seam detects is higher (detection time, accuracy of detection was within 0.05mm within 0.05s) all.Adopt conventional line-structured light weld inspection method because of the feature of weld seam own little, the impact being easily interfered, be difficult to realize in real time, effectively, high precision detects reliably, has affected the development of such weld joint automatized solder technology.
Summary of the invention
For the shortcoming of above-mentioned prior art, the invention provides a kind of detection that realizes square groove weld seam, and effectively obtain high-contrast weld image based on refraction type two-way, assemble the plain butt weld seam detection system of adjustable light path.
The present invention solves the problems of the technologies described above by the following technical solutions: a kind of plain butt weld seam detection system of assembling adjustable light path based on refraction type two-way, comprise imaging device and connected image controller, in described imaging device symmetria bilateralis, be fixedly installed two light source generators, below described light source generator light-emitting window is vertical, be provided with prism, described prism can rotate into certain Angle with vertical direction, the light that described light source generator penetrates is first through described prism refraction, enter described imaging device through tested drafting board is laggard again, imaging device sends the picture becoming out to described image controller, image controller obtains high definition weld seam detection image after the picture of receiving is processed.
Further, described imaging device is CCD camera or CMOS camera.
As preferably, the light that described prism reflects and vertical direction angle are 30 degree～35 degree.
As preferably, the drift angle of described prism is 30 degree～35 degree.
As preferably, the camera lens face of the center of described prism and described CCD camera or CMOS camera is in same level.
As preferably, described light source is laser.
The present invention compared with prior art tool has the following advantages: utilize the achieve a butt joint illumination of weld seam of refraction type two-way Path of Convergent Rays not only can increase intensity of illumination, can also avoid the impact of the shade butt welded seam position probing that single channel irradiation weld seam produces; The setting angle that reflects prism by adjustment changes light path, realizes the adjustment of refract light angle, obtains the incident angle of light of imaging definition the best; The Angulation changes light path that reflects prism by adjustment, realizes the change of convergent point, realizes the weld seam illumination of diverse location; Adopt the change of refraction prism to light path, can reduce the size of system; The setting angle that reflects prism by adjustment can change the incident angle before light path is assembled, to obtain the incident angle of image quality the best; Adopt LASER Light Source, can avoid the impact on image definition of dispersion phenomenon that prism refraction produces; Refraction prism drift angle is between 30 degree～35 degree, and refract light vertical direction angle is 30 degree～35 degree, can obtain higher weld image like this.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram and embodiment, further set forth the present invention.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
With reference to figure 1, the embodiment of the present invention provides a kind of plain butt weld seam detection system of assembling adjustable light path based on refraction type two-way, comprise imaging device 1 and connected image controller 4, described imaging device is CCD camera or CMOS camera, in described imaging device 1 symmetria bilateralis, be fixedly installed light source generator 21 and light source generator 22, described light source is laser, below described two light source generator light-emitting windows are vertical, be respectively arranged with prism 31 and prism 32, the camera lens face of described prism 31 and prism 32 center and described CCD camera or CMOS camera is in same level, the drift angle of described prism is 30 degree～35 degree, and prism can rotate into certain Angle with vertical direction, the light that prism 31 reflects and vertical direction angle are α, the light that prism 32 reflects and vertical direction angle are β, α and β be 30 degree～35 degree preferably, light source generator 21 penetrates laser 210, light source generator 22 penetrates laser 220, two bundle laser reflect post-concentrations at weld seam 00 place of tested drafting board 0 through prism 31 and prism 32 respectively, reflection ray 10 is injected imaging device 1 imaging again, imaging device 1 sends the picture becoming out to described image controller 4, image controller 4 obtains high definition weld seam detection image after the picture of receiving is processed
In the present invention, first need to detect the aluminium sheet of weld seam, corrosion resistant plate or other thin plates lie in a horizontal plane under this detection system, the camera lens of the weld seam that needs are detected to good CCD camera or CMOS camera, open the light source generator that is symmetricly set on CCD camera or CMOS camera both sides, light source generator penetrates laser, then rotation is positioned at the prism of light source generator below and the angle of vertical direction, adjust the angle of refracted ray, two bundle laser are assembled in the commissure of thin plate, its reflected light is through optical lens imaging on CCD camera or CMOS camera of CCD camera or CMOS camera, CCD camera or CMOS camera send the picture becoming out to described image controller, image controller obtains the weld image of high-contrast after the picture of receiving is processed.Again by adjusting the refracted ray of prism and the angle [alpha] of vertical direction and β, thereby the position of capable of regulating two bundle refracted ray convergent points, and then to the weld seam of diverse location, can obtain the image of high-contrast, in order to reach good detection effect, article two, the convergent point of light path should be near position while welding, so preferred 30 degree～35 degree of α and β.This detection system utilizes the achieve a butt joint illumination of weld seam of refraction type two-way Path of Convergent Rays not only can increase intensity of illumination, can also avoid the impact of the shade butt welded seam position probing that single channel irradiation weld seam produces; The setting angle that reflects prism by adjustment changes light path, realizes the adjustment of refract light angle, obtains the incident angle of light of imaging definition the best; The Angulation changes light path that reflects prism by adjustment, realizes the change of convergent point, realizes the weld seam illumination of diverse location; Adopt the change of refraction prism to light path, can reduce the size of system; The setting angle that reflects prism by adjustment can change the incident angle before light path is assembled, to obtain the incident angle of image quality the best; Adopt LASER Light Source, can avoid the impact on image definition of dispersion phenomenon that prism refraction produces, can obtain higher weld image like this.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention; the technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and the claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. based on refraction type two-way, assemble the plain butt weld seam detection system of adjustable light path, it is characterized in that: comprise imaging device and connected image controller, in described imaging device symmetria bilateralis, be fixedly installed two light source generators, below described light source generator light-emitting window is vertical, be provided with prism, described prism can rotate into certain Angle with vertical direction, the light that described light source generator penetrates is first through described prism refraction, enter described imaging device through tested drafting board is laggard again, imaging device sends the picture becoming out to described image controller, image controller obtains high definition weld seam detection image after the picture of receiving is processed.
2. the plain butt weld seam detection system of assembling adjustable light path based on refraction type two-way according to claim 1, is characterized in that: described imaging device is CCD camera or CMOS camera.
3. the plain butt weld seam detection system of assembling adjustable light path based on refraction type two-way according to claim 1, is characterized in that: the light that described prism reflects and vertical direction angle are 30 degree～35 degree.
4. the plain butt weld seam detection system of assembling adjustable light path based on refraction type two-way according to claim 3, is characterized in that: the drift angle of described prism is 30 degree～35 degree.
5. the plain butt weld seam detection system of assembling adjustable light path based on refraction type two-way according to claim 2, is characterized in that: the camera lens face of the center of described prism and described CCD camera or CMOS camera is in same level.
6. the plain butt weld seam detection system of assembling adjustable light path based on refraction type two-way according to claim 1, is characterized in that: described light source is laser.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410017867.8A CN103743751A (en) | 2014-01-15 | 2014-01-15 | Unbeveledend butt weld detection system based on reflecting two-way converging adjustable light path |
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| CN201410017867.8A CN103743751A (en) | 2014-01-15 | 2014-01-15 | Unbeveledend butt weld detection system based on reflecting two-way converging adjustable light path |
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| CN101782529A (en) * | 2009-01-20 | 2010-07-21 | 中国特种设备检测研究院 | Weld defect computer imaging and defect recognition system |
| CN101934418A (en) * | 2010-07-26 | 2011-01-05 | 清华大学 | Welding seam tracking and detecting equipment |
| CN102441737A (en) * | 2010-08-30 | 2012-05-09 | 铃木株式会社 | Apparatus and method for determining shape of end of welding bead |
| US20120318775A1 (en) * | 2011-06-17 | 2012-12-20 | Precitec Kg | Optical measuring device for monitoring a joint seam, joining head and laser welding head with same |
| CN203758925U (en) * | 2014-01-15 | 2014-08-06 | 唐山英莱科技有限公司 | Refractive type two-way convergence adjustable light path-based square-grooved butt welding seam detection system |
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2014
- 2014-01-15 CN CN201410017867.8A patent/CN103743751A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0924470A (en) * | 1995-07-14 | 1997-01-28 | Nippon Steel Corp | Weld line profiling sensor |
| TW402856B (en) * | 1996-12-26 | 2000-08-21 | Palite Corp | LED illuminator |
| JPH10311706A (en) * | 1997-05-12 | 1998-11-24 | Nippon Steel Corp | Butt position detector |
| JP2005014026A (en) * | 2003-06-24 | 2005-01-20 | Enshu Ltd | Weld zone inspection method, and welding support system |
| CN101551078A (en) * | 2008-03-31 | 2009-10-07 | 优志旺电机株式会社 | Light source for lighting and pattern detection device using the same |
| CN201307094Y (en) * | 2008-12-02 | 2009-09-09 | 鞍山长风无损检测设备有限公司 | Laser colour image welding line tracking system |
| CN101782529A (en) * | 2009-01-20 | 2010-07-21 | 中国特种设备检测研究院 | Weld defect computer imaging and defect recognition system |
| CN101934418A (en) * | 2010-07-26 | 2011-01-05 | 清华大学 | Welding seam tracking and detecting equipment |
| CN102441737A (en) * | 2010-08-30 | 2012-05-09 | 铃木株式会社 | Apparatus and method for determining shape of end of welding bead |
| US20120318775A1 (en) * | 2011-06-17 | 2012-12-20 | Precitec Kg | Optical measuring device for monitoring a joint seam, joining head and laser welding head with same |
| CN203758925U (en) * | 2014-01-15 | 2014-08-06 | 唐山英莱科技有限公司 | Refractive type two-way convergence adjustable light path-based square-grooved butt welding seam detection system |
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Application publication date: 20140423 |