CN213033884U - Four-point light spot welding head - Google Patents
Four-point light spot welding head Download PDFInfo
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- CN213033884U CN213033884U CN202021647448.XU CN202021647448U CN213033884U CN 213033884 U CN213033884 U CN 213033884U CN 202021647448 U CN202021647448 U CN 202021647448U CN 213033884 U CN213033884 U CN 213033884U
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- spectroscope
- prism group
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- collimating mirror
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Abstract
The utility model provides a four point facula soldered connection, including the collimating mirror, ridge prism group, the speculum, first spectroscope, the second spectroscope, infrared thermometer, imaging lens and COMS digital camera, the collimating mirror sets up directly over ridge prism group, the speculum slope sets up in ridge prism group below, first spectroscope is parallel with the speculum, second spectroscope and first spectroscope mutually perpendicular, infrared thermometer installs in second spectroscope one side, imaging lens and COMS digital camera all are located directly over the second spectroscope, and COMS digital camera fixes in the imaging lens top, first spectroscope below is equipped with focusing lens. The utility model has the advantages that: the utility model discloses a cooperation of collimating mirror and roof prism group can be effectively with four light path laser of incident laser formation in order to weld the work piece to adjust the horizontal and longitudinal distance of four-point facula through adjusting device, can satisfy the high accuracy requirement of laser beam machining operation.
Description
Technical Field
The utility model relates to a laser welding processing technology field especially relates to a four-point facula soldered connection.
Background
In the production process of semiconductor devices, pins of electronic components in a carrier tape on a production line bend and upwarp due to external force and other reasons, the welding performance of the pins of the electronic components is influenced, and some electronic components become waste products and cannot be used.
In order to meet the requirements of electronic system production, the welding technology and welding quality of the chip device need to be detected, and the fault problem caused by welding is reduced. When the chip mounter mounts the SOP and QFP integrated circuits, the shape of the solder paste is easily changed and edge collapse occurs.
Due to the improvement of the process, electronic devices tend to be miniaturized, the requirements on welding precision of pins and the like are continuously improved, the precision requirements of laser processing operation are higher and higher, but the existing welding system cannot meet the high-precision welding requirements, and the transverse distance and the longitudinal distance of each light spot are not adjustable when a multi-light-path welding system is adopted.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a four-point spot welding head.
The embodiment of the utility model provides a four-point facula soldered connection, including collimating mirror, roof prism group, speculum, first spectroscope, second spectroscope, infrared thermometer, imaging lens and COMS digital camera, the collimating mirror sets up directly over the roof prism group, roof prism group includes a plurality of roof prisms that superpose the setting from top to bottom in proper order, and arbitrary two adjacent all have certain distance between the roof prism, the speculum slope sets up in roof prism group below, first spectroscope is located reflector one side, and it is parallel with the speculum, the second spectroscope is located directly over the first spectroscope, and it is mutually perpendicular with the first spectroscope, infrared thermometer installs in second spectroscope one side, imaging lens with COMS digital camera all is located directly over the second spectroscope, and the COMS digital camera is fixed above the imaging lens, a focusing lens is arranged below the first spectroscope, and a protective lens is arranged below the focusing lens.
Furthermore, an adjusting device for adjusting the distance between the roof prisms is arranged on one side of the roof prism group.
Further, the base angle of each roof prism is 1-3 degrees.
Furthermore, an annular illumination light source is arranged at the lower end of the focusing lens, and the annular illumination light source is sleeved on the protection lens.
Further, the focal length F of the focusing lens is 40 mm.
Further, the diameter of the collimating mirror is 20mm, and the focal length F of the collimating mirror is 60 mm.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the utility model discloses a four-point facula soldered connection passes through the collimating mirror with roof prism group's cooperation can effectively divide incident laser into four to form four light path laser and in order to weld the work piece, the cooperation is used simultaneously infrared radiation thermometer with COMS digital camera real time monitoring welding process, and pass through adjusting device adjusts the horizontal and longitudinal distance of four-point facula, can satisfy the high accuracy requirement of laser beam machining operation.
Drawings
Fig. 1 is a schematic structural diagram of a four-point spot welding head according to the present invention.
Fig. 2 is a schematic cross-sectional view of a four-point spot welding head according to the present invention.
Fig. 3 is a schematic view of the enlargement under a four-point light spot microscope formed by the present invention.
In the figure: the system comprises a 1-collimating mirror, a 2-roof prism group, a 3-reflecting mirror, a 4-first spectroscope, a 5-second spectroscope, a 6-infrared thermometer, a 7-imaging lens, an 8-COMS digital camera, a 9-roof prism, a 10-focusing lens, an 11-protective lens, a 12-adjusting device and a 13-annular illumination light source.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, an embodiment of the present invention provides a four-point spot welding head, which includes a collimating mirror 1, a ridge prism set 2, a reflecting mirror 3, a first beam splitter 4, a second beam splitter 5, an infrared thermometer 6, an imaging mirror 7 and a cmos digital camera 8.
The collimating mirror 1 is arranged right above the roof prism group 2, preferably, the diameter of the collimating mirror 1 is 20mm, and the focal length F of the collimating mirror 1 is 60 mm. The roof prism group 2 comprises a plurality of roof prisms 9 which are sequentially overlapped from top to bottom, a certain distance is reserved between any two adjacent roof prisms 9, an adjusting device 12 for adjusting the distance between every two adjacent roof prisms 9 is arranged on one side of the roof prism group 2, the base angle of every roof prism 9 is 1-3 degrees, and the roof prism group 2 comprises four roof prisms 9 in the embodiment.
The utility model discloses in pass through collimating mirror 1 and four roof prism 9's cooperation can effectively divide incident laser into four one, forms four light path laser in order to penetrate in the speculum 3, and quilt speculum 3 reflects extremely on the first spectroscope 4.
The reflecting mirror 3 is obliquely arranged below the ridge prism group 2, preferably, an included angle between the reflecting mirror 3 and the horizontal plane is 45 degrees, the first beam splitter 4 is positioned on one side of the reflecting mirror 3 and is parallel to the reflecting mirror 3, and the second beam splitter 5 is positioned right above the first beam splitter 4 and is perpendicular to the first beam splitter 4.
A focusing lens 10 is disposed below the first beam splitter 4, preferably, a focal length F of the focusing lens 10 is 40mm, and when the four-optical path laser is reflected to the first beam splitter 4 by the reflector 3, the first beam splitter 4 further reflects the four-optical path laser to the focusing lens 10, so that the focusing lens 10 focuses the two-path laser to form four light spots on the surface of the workpiece for welding, where the size of the light spots generated through the optical paths in this embodiment is 1.7 micrometers-2.3 micrometers, a transverse distance between the light spots is 4 micrometers-7 micrometers, and a longitudinal distance is 1.7 micrometers-3.5 micrometers (see fig. 3).
The infrared thermometer 6 is installed on one side of the second beam splitter 5, and the infrared thermometer 6 is used for detecting the welding temperature of the surface of the workpiece, specifically, the infrared radiation energy emitted by the surface of the workpiece sequentially penetrates through the focusing lens 10 and the first beam splitter 4, and then is reflected to the infrared thermometer 6 by the second beam splitter 5, so that the infrared thermometer 6 can measure the surface temperature of the workpiece.
Imaging lens 7 with COMS digital camera 8 all is located directly over second spectroscope 5, just COMS digital camera 8 is fixed imaging lens 7 top, focus lens 10 below is equipped with protection lens 11, focus lens 10 lower extreme is equipped with annular illuminating light source 13, just annular illuminating light source 13 cover is established on the protection lens 11, the utility model discloses in, work as during the light irradiation work piece of annular illuminating light source 13 transmission, the work piece surface can upwards launch partly shining light to see through in proper order protection lens 11 focus lens 10 first spectroscope 4 with shine behind the second spectroscope 5 to formation of image in the imaging lens 7, thereby pass through COMS digital camera 8 alright observation work piece surface's welding condition.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A four-point spot weld head, comprising: the device comprises a collimating mirror, a ridge prism group, a reflecting mirror, a first spectroscope, a second spectroscope, an infrared thermometer, an imaging lens and a COMS digital camera, wherein the collimating mirror is arranged right above the ridge prism group, the ridge prism group comprises a plurality of ridge prisms which are sequentially overlapped from top to bottom, a certain distance is reserved between any two adjacent ridge prisms, the reflecting mirror is obliquely arranged below the ridge prism group, the first spectroscope is positioned on one side of the reflecting mirror and is parallel to the reflecting mirror, the second spectroscope is positioned right above the first spectroscope and is mutually vertical to the first spectroscope, the infrared thermometer is arranged on one side of the second spectroscope, the imaging lens and the COMS digital camera are both positioned right above the second spectroscope, and the COMS digital camera is fixed above the imaging lens, and a focusing lens is arranged below the first spectroscope, and a protective lens is arranged below the focusing lens.
2. A four-point spot welding head as claimed in claim 1, wherein: and an adjusting device for adjusting the distance between the ridge prisms is arranged on one side of the ridge prism group.
3. A four-point spot welding head as claimed in claim 2, wherein: the base angle of each roof prism is 1-3 degrees.
4. A four-point spot welding head as claimed in claim 1, wherein: an annular illumination light source is arranged at the lower end of the focusing lens, and the annular illumination light source is sleeved on the protective lens.
5. A four-point spot welding head as claimed in claim 1, wherein: and the focal length F of the focusing lens is 40 mm.
6. A four-point spot welding head as claimed in claim 2, wherein: the diameter of the collimating mirror is 20mm, and the focal length F of the collimating mirror is 60 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021647448.XU CN213033884U (en) | 2020-08-10 | 2020-08-10 | Four-point light spot welding head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021647448.XU CN213033884U (en) | 2020-08-10 | 2020-08-10 | Four-point light spot welding head |
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| Publication Number | Publication Date |
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| CN213033884U true CN213033884U (en) | 2021-04-23 |
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| CN202021647448.XU Active CN213033884U (en) | 2020-08-10 | 2020-08-10 | Four-point light spot welding head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114633024A (en) * | 2022-03-31 | 2022-06-17 | 武汉工程大学 | Five-light coaxial lens |
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2020
- 2020-08-10 CN CN202021647448.XU patent/CN213033884U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114633024A (en) * | 2022-03-31 | 2022-06-17 | 武汉工程大学 | Five-light coaxial lens |
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