CN203696257U - CCD assembly of laser welding head - Google Patents
CCD assembly of laser welding head Download PDFInfo
- Publication number
- CN203696257U CN203696257U CN201420034756.3U CN201420034756U CN203696257U CN 203696257 U CN203696257 U CN 203696257U CN 201420034756 U CN201420034756 U CN 201420034756U CN 203696257 U CN203696257 U CN 203696257U
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- ccd
- laser welding
- assembly
- welding system
- cylindrical shell
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- 238000003466 welding Methods 0.000 title claims abstract description 56
- 230000003287 optical effect Effects 0.000 claims description 15
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000004026 adhesive bonding Methods 0.000 abstract 2
- 230000005499 meniscus Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 description 7
- 230000004075 alteration Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Microscoopes, Condenser (AREA)
Abstract
The utility model relates to the technical field of laser welding, and discloses a CCD assembly of a laser welding head. The CCD assembly is installed between a beam expander set and a focus lens set of the laser welding head and comprises a spectroscope, a gluing lens, an iris diaphragm, a meniscus lens, a reflection lens, a focus lens, a light filter and a CCD element, wherein the spectroscope, the gluing lens, the iris diaphragm, the meniscus lens and the reflection lens are sequentially arranged on a first light path, the focus lens, the light filter and the CCD element are arranged on a second light path, the first light path is perpendicular to the second light path, and the CCD element is further connected with a displayer. Due to the fact that the CCD assembly is installed between the beam expander set and the focus lens set of the welding head, in the specific welding process, welding conditions of welding seams can be tracked through the CCD assembly, and accordingly welding efficiency is improved, and welding cost is further reduced.
Description
Technical field
The utility model relates to laser welding technology field, in particular, and the CCD assembly of the laser welding system that particularly a kind of weld joint tracking of optical-fiber laser welding different plates is used.
Background technology
Along with the fast development of High Power Laser Welding, in the process of welding different plates, the requirement of laser welding system performance and welding quality is also further increased.And the welding effect of traditional laser welding system can only weld the quality of removing to observe plumb joint welding effect after sheet material by human eye, so just need repeatedly sample the welding situation according to weld seam to remove to judge the whether intact of welding, thereby scrap some sheet materials, the shortcoming of doing is like this: increased greatly cost, reduced the efficiency of work.
Utility model content
The purpose of this utility model is for the technical problem existing in prior art, and a kind of CCD assembly of laser welding system is provided.
In order to solve problem set forth above, the technical solution adopted in the utility model is:
A kind of CCD assembly of laser welding system, it is installed between the beam expanding lens and focus lamp group of laser welding system, this CCD assembly comprises spectroscope, gummed eyeglass, iris diaphgram, bent moon eyeglass, the speculum be located at successively in the first light path, and be located at focus lamp, optical filter and the CCD element of the second light path, described the first light path is mutually vertical with the second light path, and described element is also connected with a display.
According to a preferred embodiment of the present utility model: also comprise camera and the blue-light source of being located at described focus lamp group outside, and described camera is also connected with display.
According to a preferred embodiment of the present utility model: also comprise a L shaped assembly cylindrical shell, described gummed eyeglass, iris diaphgram and bent moon eyeglass are installed in the minor face of L shaped assembly cylindrical shell successively, described focus lamp, optical filter and CCD element are installed in the long limit of L shaped assembly cylindrical shell, and described speculum is installed on the minor face of L shaped assembly cylindrical shell and the junction on long limit.
According to a preferred embodiment of the present utility model: the junction on the minor face of described L shaped assembly cylindrical shell and long limit is 45 ° of inclined planes, described speculum is installed on these 45 ° of inclined planes, and the L shaped assembly cylindrical shell outside on described 45 ° of inclined planes is also provided with stator.
According to a preferred embodiment of the present utility model: the end of the minor face of described L shaped assembly cylindrical shell is also fixed with mount pad, and the end on the long limit of described L shaped assembly cylindrical shell is also provided with focusing structure.
According to a preferred embodiment of the present utility model: described focusing structure comprises focusing ring, the holder being installed on focusing ring moving up and down, and be installed on the locking member for fixing described holder upper and lower displacement on holder.
According to a preferred embodiment of the present utility model: described locking member is lock screw.
According to a preferred embodiment of the present utility model: described CCD assembly is installed on the sidewall of the cylindrical shell between beam expanding lens and the focus lamp group of laser welding system.
Compared with prior art, the beneficial effects of the utility model are:
The utility model, owing to CCD assembly being arranged between the beam expanding lens group and focus lamp group of plumb joint, in concrete welding process, can utilize the situation of the welding of CCD component tracks weld seam, thereby improve the efficiency of welding, further reduces welding cost.
Accompanying drawing explanation
Fig. 1 is the initial light channel structure figure of the CCD assembly of laser welding system of the present utility model.
Fig. 2 is the light channel structure figure after the optimization of CCD assembly of laser welding system of the present utility model.
In Fig. 3,3a, 3b and 3c represent respectively light path parameter, mtf value and the point range figure size of the utility model after optimization.
Fig. 4 be laser welding system of the present utility model CCD assembly install time mirror chamber figure.
Fig. 5 be laser welding system of the present utility model CCD assembly install time focusing structure figure.
Fig. 6 is the structure chart that the CCD assembly of laser welding system of the present utility model is arranged on plumb joint.
The specific embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.In accompanying drawing, provide preferred embodiment of the present utility model.But the utility model can be realized in many different forms, be not limited to embodiment described herein.On the contrary, providing the object of these embodiment is to make to the understanding of disclosure of the present utility model more thoroughly comprehensively.
Consult Fig. 2, shown in Fig. 6, the utility model provides a kind of CCD assembly 10 of laser welding system, it is installed on beam expanding lens and the focus lamp group G1 of laser welding system, between G2, this CCD assembly comprises the spectroscope G3 being located at successively in the first light path, gummed eyeglass G4, G5, iris diaphgram L, bent moon eyeglass G6, speculum G7, and be located at the focus lamp G8 of the second light path, optical filter G9 and CCD element 1, the first light path (has namely adopted 90 degree vertical optical path structures with the second light path is mutually vertical, be convenient to be arranged on plumb joint), and CCD element 1 is also connected with a display.
Concrete, in the utility model, also comprise camera and the blue-light source of being located at focus lamp group G1, G2 outside, and camera is also connected with display.This CCD assembly plumb joint of different focus lamp groups (focal length) of can arranging in pairs or groups simultaneously.
CCD assembly of the present utility model is installed on the sidewall of the cylindrical shell between beam expanding lens and focus lamp group G1, the G2 of laser welding system.
The principle of light path of the present utility model is: the blue-light source in CCD element 1 outside is irradiated to the surface of to be processed, the surperficial blue light line focus mirror group G1 of to be processed, after G2, be approximately directional light, arrive gummed eyeglass G4 through the surface reflection of spectroscope G3 again, its Main Function of G5(is the aberration of eliminating visible ray different-waveband wavelength), through gummed eyeglass G4, the visible ray of G5 arrives on the surface that focus lamp G8 focuses on CCD element 1 (the optical filter G9 between focus lamp G8 and CCD element 1 filters the visible ray except blue light) after bent moon eyeglass G6 converges to speculum G7 reflection again.
Light path of the present utility model order (from the bottom up): to be processed surface-focus lamp group G1, G2-spectroscope G3(surface reflection)-gummed eyeglass G4, G5-bent moon eyeglass G6-speculum G7-focus lamp G8-optical filter G9-CCD element 1.
Consult shown in Fig. 4, CCD assembly of the present utility model also comprises a L shaped assembly cylindrical shell 5, wherein, described gummed eyeglass G4, G5, iris diaphgram L and bent moon eyeglass G6 are installed in the minor face of L shaped assembly cylindrical shell 5 successively, described focus lamp G8, optical filter G9 and CCD element 1 are installed in the long limit of L shaped assembly cylindrical shell 5, and described speculum G7 is installed on the minor face of L shaped assembly cylindrical shell 5 and the junction on long limit.
Concrete, the junction on the minor face of described L shaped assembly cylindrical shell 5 and long limit is 45 ° of inclined planes, described speculum G7 is installed on these 45 ° of inclined planes, and L shaped assembly cylindrical shell 5 outsides on 45 ° of inclined planes are also provided with stator 4.
Because the combination of laser welding system CCD assembly of the present utility model and focus lamp group G1, G2 is equivalent to an imaging lens, therefore need before use first to build a light path by ZEMAX software simulation, and by Aberration Analysis to reach the requirement of system to image quality, detailed process is as follows:
First adopt focal length 200mm in conjunction with focus lamp group G1, the G2(of laser welding system, material refractive index 1.458) set up an optical model, for ease of being optimized analysis, first each optical element is arranged on same straight line, after having optimized, add G3 spectroscope and G7 speculum.In order to reduce various aberrations, improve the image quality of CCD assembly, the initial lens former of this selection is balsaming lens G4, G5+ biconvex eyeglass S1+ biconvex eyeglass S2+ optical filter G9 composition, as shown in Figure 1, after optimizing, as shown in Figure 2, its model structure becomes balsaming lens G4, G5+ bent moon eyeglass G6+ biconvex eyeglass G8+ optical filter G9 to its effect.
And on whole Optical System Design requires: visible ray dominant wavelength is 470nm, the eyeglass focal length of focus lamp group G4, G5 that plumb joint itself carries is that 200mm is constant, system focal length EFFL<150mm, BFL >=45mm, image height is 4mm, in the time that spatial frequency is 50lp/mm, and MTF>0.20, as preferably, be domestic in order to reduce the eyeglass material that the cost of eyeglass selects.
Fig. 1 and iris diaphgram L employed in figure 2 act as, and in the time that extraneous light is strong, stop down, when extraneous light is darker, needs to increase aperture, in the time of stop down, can increase the depth of field.
External light source in the utility model is blue light, optical filter G9 filters the blue light light of wavelength in addition, can avoid so bad because of filter effect, and in welding process, in the shown picture of display, can't see the problem of weld seam welding situation because spark is excessive.
Consult shown in Fig. 3,3a, the 3b in figure and 3c represent respectively light path parameter, mtf value and the point range figure size of the utility model after optimization.Can find out that from Fig. 3 a and 3b the response of whole imaging optical path when the 50LP/MM reaches more than 0.25.Can find out that from Fig. 3 c the aberration size of point range figure is all less than 5.4 μ m, the light path that adopts as can be seen here many arrangements of mirrors sheet to build, its aberration can be controlled in certain limit.
Consult again shown in Fig. 4 and Fig. 5, it is the CCD assembly mirror cavity configuration figure in conjunction with lens dimension and the design of its spacing size, the end of the minor face of L shaped assembly cylindrical shell 5 is also fixed with mount pad 3, so that be connected with the sidewall of cylindrical shell between beam expanding lens and focus lamp group G1, the G2 of laser welding system.And the end (namely the camera place that connects of CCD assembly lower end adopts adjustable structure) on the long limit of L shaped assembly cylindrical shell 5 is also provided with focusing structure, can find clear picture within the scope of the upper and lower 10mm in focal position, is convenient to the sheet material of monitoring welding different-thickness; This focusing structure comprises focusing ring 6, the holder 7 being installed on focusing ring 6 moving up and down, and be installed on holder 7 for fixing the locking member 8 of described holder 7 upper and lower displacements, this locking member 8 is lock screw, in the time that on display, imaging picture is clear, locking lock screw is fixed on a certain position of focusing ring 6 holder 7, and focusing is convenient like this, easily finds desirable focal position.
Having applied after CCD assembly of the present utility model, under operating mode of the same race, and the sheet material such as a traditional welding soldering stainless steel carbon steel, the sheet material amount of scrapping reduces 40%, and welding efficiency improves greatly, cost reduction.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (8)
1. the CCD assembly of a laser welding system, it is installed between the beam expanding lens and focus lamp group (G1, G2) of laser welding system, it is characterized in that: this CCD assembly comprises spectroscope (G3), gummed eyeglass (G4, G5), iris diaphgram (L), bent moon eyeglass (G6), the speculum (G7) be located at successively in the first light path, and be located at focus lamp (G8), optical filter (G9) and the CCD element (1) of the second light path, described the first light path is mutually vertical with the second light path, and described CCD element (1) is also connected with a display.
2. the CCD assembly of laser welding system according to claim 1, is characterized in that: also comprise camera and the blue-light source of being located at described focus lamp group (G1, G2) outside, and described camera is also connected with display.
3. the CCD assembly of laser welding system according to claim 1, it is characterized in that: also comprise a L shaped assembly cylindrical shell (5), described gummed eyeglass (G4, G5), iris diaphgram (L) and bent moon eyeglass (G6) are installed in the minor face of L shaped assembly cylindrical shell (5) successively, described focus lamp (G8), optical filter (G9) and CCD element (1) are installed in the long limit of L shaped assembly cylindrical shell (5), and described speculum (G7) is installed on the minor face of L shaped assembly cylindrical shell (5) and the junction on long limit.
4. the CCD assembly of laser welding system according to claim 3, it is characterized in that: the junction on the minor face of described L shaped assembly cylindrical shell (5) and long limit is 45 ° of inclined planes, described speculum (G7) is installed on these 45 ° of inclined planes, and the L shaped assembly cylindrical shell (5) on described 45 ° of inclined planes outside is also provided with stator (4).
5. the CCD assembly of laser welding system according to claim 3, is characterized in that: the end of the minor face of described L shaped assembly cylindrical shell (5) is also fixed with mount pad (3), and the end on the long limit of described L shaped assembly cylindrical shell (5) is also provided with focusing structure.
6. the CCD assembly of laser welding system according to claim 5, it is characterized in that: described focusing structure comprises focusing ring (6), the holder (7) being installed on focusing ring (6) moving up and down, and be installed on the upper locking member (8) for fixing described holder (7) upper and lower displacement of holder (7).
7. the CCD assembly of laser welding system according to claim 6, is characterized in that: described locking member (8) is lock screw.
8. the CCD assembly of laser welding system according to claim 1, is characterized in that: described CCD assembly is installed on the sidewall of the cylindrical shell between beam expanding lens and the focus lamp group (G1, G2) of laser welding system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420034756.3U CN203696257U (en) | 2014-01-20 | 2014-01-20 | CCD assembly of laser welding head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420034756.3U CN203696257U (en) | 2014-01-20 | 2014-01-20 | CCD assembly of laser welding head |
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| Publication Number | Publication Date |
|---|---|
| CN203696257U true CN203696257U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420034756.3U Expired - Lifetime CN203696257U (en) | 2014-01-20 | 2014-01-20 | CCD assembly of laser welding head |
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| Country | Link |
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| CN (1) | CN203696257U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153559A (en) * | 2019-06-20 | 2019-08-23 | 厦门市三熠智能科技有限公司 | A kind of rotary laser plumb joint |
| CN113655679A (en) * | 2020-05-12 | 2021-11-16 | 深圳市联赢激光股份有限公司 | Method for eliminating lamp shadow in laser welding process |
-
2014
- 2014-01-20 CN CN201420034756.3U patent/CN203696257U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153559A (en) * | 2019-06-20 | 2019-08-23 | 厦门市三熠智能科技有限公司 | A kind of rotary laser plumb joint |
| CN113655679A (en) * | 2020-05-12 | 2021-11-16 | 深圳市联赢激光股份有限公司 | Method for eliminating lamp shadow in laser welding process |
| CN113655679B (en) * | 2020-05-12 | 2022-05-10 | 江苏联赢激光有限公司 | Method for eliminating lamp shadow in laser welding process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
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| CX01 | Expiry of patent term |