CN203245513U - Annular light-spot welding device - Google Patents
Annular light-spot welding device Download PDFInfo
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- CN203245513U CN203245513U CN 201320165279 CN201320165279U CN203245513U CN 203245513 U CN203245513 U CN 203245513U CN 201320165279 CN201320165279 CN 201320165279 CN 201320165279 U CN201320165279 U CN 201320165279U CN 203245513 U CN203245513 U CN 203245513U
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- prism
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- light spot
- shaped light
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Abstract
The utility model provides an annular light-spot welding device which comprises an alignment system, a beam splitter prism and a focus system which are arranged in sequence. The beam splitter prism is formed in the method that two or more prisms are overlapped by angles. The annular light-spot welding device enables lasers to form annular light spots and can weld products with protruding structures in the middles, the prisms are easy to machine, cost is low, and installation device is easy to design to adjust the center of a lens, and errors of lens machining are compensated.
Description
Technical field
The utility model relates to welding field, relates in particular to the ring-shaped light spot welder of welding pcb board, spark plug.
Background technology
Existing method for laser welding exists a lot of not enough:
The welding of a lot of pcb boards and pin is arranged in 1, the soldering project, adopt the circular light spot welding can have a lot of drawbacks, as: pin and pad excesssive gap, be heated inhomogeneous; Laser heats over against pin, and pin is heated and pad is warm etc.;
2, welding spark platinum wire beyond the Great Wall adopts the circular light spot welding, and laser can make the cylinder temperature distortion of intermediate projections;
3, can adopt circular cone prism to cooperate the method for condenser lens to produce ring-shaped light spot, but the circular cone prism cost is high and difficulty of processing is large.
For these shortcomings, a kind of new welder of needs is realized the welding to this product.
The utility model content
In order to solve following problem of the prior art: when laser weld, laser energy is too concentrated, and the product of bulge-structure can't the welding center be arranged.The very little circular cone prism processing cost in base angle is high, and difficulty of processing is large.The utility model provides a kind of ring-shaped light spot welder.
A kind of ring-shaped light spot welder, it comprises colimated light system, Amici prism and the focusing system that sets gradually, described Amici prism is that the angled stack of two or more prisms is placed.
As further improvement of the utility model, described Amici prism is that two roof prisms become 60 degree to 90 degree to place.
As further improvement of the utility model, two roof prisms become 90 degree to place.
As further improvement of the utility model, the base angle of two roof prisms is arbitrarily angled between 0.1 degree～2 degree, obtains ring-shaped light spot through focusing system.
As further improvement of the utility model, described Amici prism is three roof prisms, and three roof prisms are a, b, c, and the angle of prism a and prism b is that 30 degree are between 60 degree, the angle of prism a and prism c is between 90 degree are spent to 120, obtains the ring-shaped light spot that needs through focusing system.
As further improvement of the utility model, the angle of prism a and prism b is 60 degree, and the angle of prism a and prism c is 120 degree.
As further improvement of the utility model, described Amici prism is kaleidoscope prism.
As further improvement of the utility model, described Amici prism is the hexahedron prism.
As further improvement of the utility model, driven by motor Amici prism rotary circularizes hot spot.
The utility model makes laser form ring-shaped light spot, and the product of bulge-structure is arranged in the middle of can welding.The realization of prism handling ease and cost are low, are easy to the design and installation device and regulate center of lens, compensation eyeglass manufacturing tolerance.
The prism of multifocal some hot spot employing is processed easy to be more a lot than Conical Lenses, and the design welder can be regulated the error that the Prism compensation design causes.
Description of drawings
Fig. 1 is the light-dividing principle schematic diagram of the utility model prism;
Fig. 2 is the utility model ring-shaped light spot welder basic structure schematic diagram;
Fig. 3 is the index path that two roof prisms of the utility model form four focuses;
Fig. 4 is the utility model four focus spot structural representations;
Fig. 5 is the utility model four focus experimental result structural representations;
Fig. 6 is the index path that three roof prisms of the utility model form six focuses;
Fig. 7 is six focus spot;
Fig. 8 is roof prism;
Fig. 9 is kaleidoscope prism;
Figure 10 is the hexahedron prism.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Be similar to the welding of pcb board and this series products of spark plug, the circular light spot energy too concentrates on the center, can be the structure temperature distortion of intermediate projections, can not satisfy the requirement of welding, so use prism to the laser beam light splitting, change Energy distribution, reach welding requirements.
The light-dividing principle of prism
As shown in Figure 1: 1 is directional light among the figure, and 2 is prism, and 3 is the directional light that two bundles have certain angle.Directional light is through after the prism, and change has occured in the direction of propagation of light, has formed the directional light with certain angle, designs multiple prism according to the light-dividing principle of prism, cooperates condenser lens just can form the hot spot of needs.
Ring-shaped light spot welder basic structure
As shown in Figure 2, among the figure, 4 is the light pricker, and 5 is colimated light system, and 6 is Amici prism, and 7 is focusing system.Laser forms directional light through optical fibre transmission to colimated light system, and directional light changes the direction of propagation of laser through prismatic decomposition, is focused into ring-shaped light spot through focusing system again.
Multifocal some hot spot---four focuses
When two or more prisms became different angular stacks to place, directional light can form difform ring-shaped light spot through each prismatic decomposition after focusing on through condenser lens again.Also can by the difform prism of design, obtain different ring-shaped light spots.
For example, as shown in Figure 3 and Figure 4: two angled placements of roof prism, for example preferred 60 degree to 90 degree are placed, most preferably 90 spend, directional light is through two roof prism light splitting, form four focus spot after focusing on through condenser lens, along with the increase of operating distance, distance is also increasing between four focuses of row again.Because the impact of fuel factor, four focuses can form the ring-shaped light spot that needs.
As shown in Figure 5, designed the base angle and be arbitrarily angled between 0.1 degree～2 degree, four focus spot have been formed through focusing system, for example the base angle is the roof prism of 0.7 degree, laser has formed four focus spot through the focusing lens of roof prism and F=80mm, and observes the light spot shape that forms in different positions.
Multifocal some hot spot---six focuses
In order to obtain more uniformly ring-shaped light spot, can use three roof prism stacks, three roof prisms are a, b, c, and the angle of prism a and prism b is that 30 degree are between 60 degree, the angle of prism a and prism c is between 90 degree are spent to 120, obtains the ring-shaped light spot that needs through focusing system.The angle of prism a and prism b is 60 degree, and the angle of prism a and prism c is 120 degree.
A kind of ring-shaped light spot welder, it comprises colimated light system, Amici prism and the focusing system that sets gradually, described Amici prism is that the angled stack of two or more prisms is placed.
Described Amici prism can be placed for two roof prisms become 90 degree.For example: the base angle of two roof prisms is 0.7 degree, and the focal length of the focusing lens of focusing system is F=80mm.
Described Amici prism is kaleidoscope prism, hexahedron prism, octahedra prism etc., will select the many prisms of face number when requiring laser solder joint closed good, but the face number of prism is more, and the difficulty of processing is larger, and cost is also higher.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. ring-shaped light spot welder, it comprises colimated light system, Amici prism and the focusing system that sets gradually, and it is characterized in that: described Amici prism is that the angled stack of two or more prisms is placed.
2. a kind of ring-shaped light spot welder according to claim 1 is characterized in that: described Amici prism is that two roof prisms become 60 degree to 90 degree to place.
3. a kind of ring-shaped light spot welder according to claim 2 is characterized in that: two roof prisms become 90 degree to place.
4. according to claim 2 or 3 described a kind of ring-shaped light spot welders, it is characterized in that: the base angle of two roof prisms is arbitrarily angled between 0.1 degree ~ 2 degree, obtains ring-shaped light spot through focusing system.
5. a kind of ring-shaped light spot welder according to claim 1, it is characterized in that: described Amici prism is three roof prisms, three roof prisms are a, b, c, the angle of prism a and prism b is that 30 degree are between 60 degree, the angle of prism a and prism c is between 90 degree are spent to 120, obtains the ring-shaped light spot that needs through focusing system.
6. a kind of ring-shaped light spot welder according to claim 5 is characterized in that: the angle of prism a and prism b is 60 degree, and the angle of prism a and prism c is 120 degree.
7. a kind of ring-shaped light spot welder according to claim 1, it is characterized in that: described Amici prism is kaleidoscope prism.
8. a kind of ring-shaped light spot welder according to claim 1, it is characterized in that: described Amici prism is the hexahedron prism.
9. a kind of ring-shaped light spot welder according to claim 1, it is characterized in that: driven by motor Amici prism rotary circularizes hot spot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165279 CN203245513U (en) | 2013-04-03 | 2013-04-03 | Annular light-spot welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165279 CN203245513U (en) | 2013-04-03 | 2013-04-03 | Annular light-spot welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203245513U true CN203245513U (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320165279 Expired - Lifetime CN203245513U (en) | 2013-04-03 | 2013-04-03 | Annular light-spot welding device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203245513U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809246A (en) * | 2014-02-17 | 2014-05-21 | 江苏法尔胜光电科技有限公司 | Device and method for welding optical fibre and end cap |
| CN108544092A (en) * | 2018-04-25 | 2018-09-18 | 上海产业技术研究院 | A kind of coaxial wire feed deposition head for laser metal printing |
| CN113084290A (en) * | 2021-03-15 | 2021-07-09 | 武汉华工激光工程有限责任公司 | Laser soldering system and method |
-
2013
- 2013-04-03 CN CN 201320165279 patent/CN203245513U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809246A (en) * | 2014-02-17 | 2014-05-21 | 江苏法尔胜光电科技有限公司 | Device and method for welding optical fibre and end cap |
| CN103809246B (en) * | 2014-02-17 | 2016-06-01 | 无锡法尔胜光电科技有限公司 | Optical fiber end cap fusion splicing devices and welding process thereof |
| CN108544092A (en) * | 2018-04-25 | 2018-09-18 | 上海产业技术研究院 | A kind of coaxial wire feed deposition head for laser metal printing |
| CN113084290A (en) * | 2021-03-15 | 2021-07-09 | 武汉华工激光工程有限责任公司 | Laser soldering system and method |
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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: 20131023 |
|
| CX01 | Expiry of patent term |