CN216502964U - Simple laser welding head - Google Patents
Simple laser welding head Download PDFInfo
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- CN216502964U CN216502964U CN202122969323.XU CN202122969323U CN216502964U CN 216502964 U CN216502964 U CN 216502964U CN 202122969323 U CN202122969323 U CN 202122969323U CN 216502964 U CN216502964 U CN 216502964U
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Abstract
The utility model provides a simple and easy laser welder head relates to laser welding technical field, has solved the problem of the easy low price of the current demand laser welder head of adjusting luminance, including the lens cone, from last to being provided with first gasket, collimating lens, first high temperature resistant rubber tube, focusing lens, the high temperature resistant rubber tube of second, protection lens, second gasket and the high temperature resistant rubber tube of third down in order in the lens cone, the lens cone includes from last to setting up and threaded connection's upper lens cone, middle level lens cone and bottom lens cone down in order, upper lens cone upper end is optic fibre socket, and collimating lens, first high temperature resistant rubber tube, focusing lens, the high temperature resistant rubber tube of second and protection lens are arranged in the middle level lens cone. The utility model can meet different basic welding requirements by adjusting the distance among the optical fiber, the collimating lens and the focusing lens, not only can adjust the light without a complicated mechanical structure to adjust the position of each lens, but also is easy to assemble and disassemble and is suitable for welding without requiring extremely high precision.
Description
Technical Field
The utility model relates to the technical field of laser welding, in particular to a simple laser welding head.
Background
The laser welding head is a key component of the laser welding equipment, and the focal length and the working distance are adjusted by using the laser welding head, so that a proper light spot size can be obtained in the laser welding head. Since the advent of laser welding, high-precision welding has been sought. Nowadays, a laser welding head commonly used integrates different functional components, including a laser focusing and introducing unit, a shielding gas introducing and distributing unit, a cooling system, a lens protection system, etc., and also has a monitoring and feedback control unit for high-precision welding during laser welding with feedback control. Because the existing laser welding head is expensive and the dimming operation is complex, the problems of expenditure waste and complex dimming are caused when an experiment which does not require extremely high welding precision (an experiment without welding seam requirements, such as a copper sheet and a stainless steel sheet are stacked and welded, because two pieces of metal are welded back to back, no welding seam requirements exist, and no special requirements are required on the size of a light spot).
SUMMERY OF THE UTILITY MODEL
In order to solve the existing demand for a laser welding head which is more suitable for common precision laser welding and has low cost and simple dimming, the utility model provides a simple laser welding head.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
the utility model provides a simple and easy laser welder head, includes the lens cone, from last to being provided with first gasket, collimating lens, first high temperature resistant rubber tube, focusing lens, the high temperature resistant rubber tube of second, protection lens, second gasket and the high temperature resistant rubber tube of third in order down in the lens cone, the lens cone includes from last upper lens cone, middle level lens cone and the bottom lens cone that sets up and threaded connection in order down, upper lens cone upper end is the optical fiber socket, and collimating lens, first high temperature resistant rubber tube, focusing lens, the high temperature resistant rubber tube of second and protection lens are arranged in the middle level lens cone.
Furthermore, the upper lens barrel is provided with a screw hole, and the optical fiber can be fixed in the optical fiber socket through the screw hole and a screw matched with the screw hole.
Furthermore, the upper layer lens barrel is provided with an upper limiting edge of the first gasket, and the bottom layer lens barrel is provided with a lower limiting edge of the third high-temperature-resistant rubber tube.
Further, the second gasket and the third high-temperature-resistant rubber tube are positioned in the middle layer lens barrel.
Furthermore, a lower limit edge of the collimating lens or an upper limit edge of the focusing lens is arranged in the middle layer lens barrel.
Further, collimating lens is connected to first gasket, and collimating lens or focusing lens are connected to first high temperature resistant rubber tube, and focusing lens, second high temperature resistant rubber tube, protection lens, second gasket and third high temperature resistant rubber tube are connected in order.
Further, the first gasket comprises a first high-temperature-resistant rubber gasket and a first aluminum alloy gasket located on the upper surface of the first high-temperature-resistant rubber gasket, the first aluminum alloy gasket can be connected with the upper lens cone, the second gasket comprises a second high-temperature-resistant rubber gasket and a second aluminum alloy gasket, the protection lens, the second high-temperature-resistant rubber gasket and the second aluminum alloy gasket are sequentially arranged from top to bottom, and the second aluminum alloy gasket is connected with a third high-temperature-resistant rubber tube.
Furthermore, a first internal thread is arranged on the inner surface of the upper layer lens cone, a first external thread is arranged on the upper side of the outer surface of the middle layer lens cone corresponding to the first internal thread, a second external thread is arranged on the lower side of the outer surface of the middle layer lens cone, and a second internal thread is arranged on the inner surface of the bottom layer lens cone corresponding to the second external thread.
Furthermore, the number of turns of the thread of the first external thread is greater than that of the first internal thread, and the number of turns of the thread of the second external thread is greater than that of the second internal thread.
Furthermore, the laser welding head also comprises a fixing support, the fixing support is connected with the middle-layer lens cone, and the laser welding head is connected with the laser welding equipment through the fixing support.
The utility model has the beneficial effects that:
according to the simple laser welding head, the distance between the optical fiber and the collimating lens can be adjusted by selecting the thickness of the first gasket, the distance between the collimating lens and the focusing lens can be adjusted by selecting the thickness of the first high-temperature-resistant rubber tube, and the laser welding head can meet different basic welding requirements by adjusting the distances between the optical fiber and the collimating lens and between the collimating lens and the focusing lens, can simply adjust light, does not need to adjust the position of each lens by a complicated mechanical structure, and is easy to assemble and disassemble. Compared with the existing laser welding head, the simple laser welding head has low cost, can replace the parts of the laser welding head aiming at the optical fiber lasers with different optical parameters, can be matched with more optical fiber lasers, and is suitable for welding without requiring extremely high precision.
Drawings
Fig. 1 is a perspective view of a simple laser welding head according to the present invention.
Fig. 2 is a cross-sectional structural view of a simple laser welding head according to the present invention.
In the figure: 1. the lens barrel comprises an upper layer lens barrel body, 1.1, an optical fiber socket, 1.2, a screw hole, 2, a middle layer lens barrel body, 2.1, a first external thread, 3, a bottom layer lens barrel body, 3.1, a lower limiting edge of a third high-temperature resistant rubber tube, 4, a first gasket, 5, a collimating lens, 6, a first high-temperature resistant rubber tube, 7, a focusing lens, 8, a second high-temperature resistant rubber tube, 9, a protective lens, 10, a second gasket, 11, a third high-temperature resistant rubber tube, 12 and a fixing support.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
A simple laser welding head comprising: the lens comprises a lens barrel, a first gasket 4, a collimating lens 5, a first high-temperature-resistant rubber tube 6, a focusing lens 7, a second high-temperature-resistant rubber tube 8, a protective lens 9, a second gasket 10 and a third high-temperature-resistant rubber tube 11. The first gasket 4, the collimating lens 5, the first high temperature resistant rubber tube 6, the focusing lens 7, the second high temperature resistant rubber tube 8, the protective lens 9, the second gasket 10 and the third high temperature resistant rubber tube 11 are sequentially arranged in the lens barrel from top to bottom. The lens cone includes from last upper lens cone 1, middle level lens cone 2 and the bottom lens cone 3 that sets up down in order, and collimating lens 5, first high temperature resistant rubber tube 6, focusing lens 7, second high temperature resistant rubber tube 8 and protection lens 9 are arranged in middle level lens cone 2, and upper lens cone 1, middle level lens cone 2 and bottom lens cone 3 are cylindrical, and upper lens cone 1 threaded connection middle level lens cone 2, middle level lens cone 2 threaded connection bottom lens cone 3. A simple laser welding head is shown in figures 1 and 2.
The inner surface of the upper layer lens barrel 1 is provided with a first internal thread, the upper side of the outer surface of the middle layer lens barrel 2 is provided with a first external thread 2.1, the lower side is provided with a second external thread, and the inner surface of the bottom layer lens barrel 3 is provided with a second internal thread. The upper layer lens barrel 1 is connected with the middle layer lens barrel 2 through a first internal thread and a first external thread 2.1, and the middle layer lens barrel 2 is connected with the bottom layer lens barrel 3 through a second external thread and a second internal thread. Typically the number of turns of the first external thread 2.1 is greater than the number of turns of the first internal thread and the number of turns of the second external thread is greater than the number of turns of the second internal thread.
The upper end of the upper layer lens barrel 1 is provided with an optical fiber socket 1.1, the upper layer lens barrel 1 is provided with a screw hole 1.2, the optical fiber socket 1.1 is used for inserting an optical fiber, the light-emitting end of the optical fiber is positioned in the upper layer lens barrel 1, and the screw hole 1.2 is used for fixing the optical fiber positioned in the upper layer lens barrel 1. In the present embodiment, 3 screw holes 1.2 are uniformly provided in the circumferential direction of the upper-layer barrel 1, and the plane where the 3 screw holes 1.2 are located is perpendicular to the axis of the upper-layer barrel. The upper end port of the upper layer lens barrel 1 is used as an optical fiber patch port 1.1, an optical fiber (namely a laser optical fiber head) is inserted into the upper layer lens barrel 1 from the upper end port of the upper layer lens barrel 1, and the optical fiber can be fixed in the optical fiber patch port 1.1 through a screw hole 1.2 and a screw matched with the screw hole 1.2.
The collimating lens 5, the first high temperature resistant rubber tube 6, the focusing lens 7, the second high temperature resistant rubber tube 8 and the protective lens 9 are arranged in the middle layer lens barrel 2, the first gasket 4, the second gasket 10 and the third high temperature resistant rubber tube 11 can be arranged in the middle layer lens barrel 2, and the second gasket 10 and the third high temperature resistant rubber tube 11 are arranged in the middle layer lens barrel 2 in the embodiment. The optical fiber plug socket 1.1, the collimating lens 5, the focusing lens 7 and the protective lens 9 are correspondingly arranged from top to bottom in sequence. The collimating lens 5 is used for collimating the light beam emitted by the optical fiber to obtain a collimated light beam, and the focusing lens 7 is used for converging the collimated light beam to obtain a point-shaped light spot. The protection lens 9 is a flat glass sheet and is used for preventing dust from entering the middle lens barrel 2 during welding, the protection lens 9 protects the focusing lens 7, namely, the dust during welding is prevented from polluting the focusing lens 7, and the dust during welding cannot pollute the collimating lens 5 and optical fibers in the upper lens barrel 1 through the protection lens 9 and the focusing lens 7. Laser emitted by the optical fiber is collimated by the collimating lens 5 and then focused by the focusing lens 7, and the focused light beam passes through the protective lens 9 and irradiates a part to be welded for laser welding. The focusing lens and the collimating lens 5 both adopt plano-convex lenses, the convex surface of the focusing lens faces upwards, and the convex surface of the collimating lens 5 faces downwards. All be equipped with the light beam on first high temperature resistant rubber gasket, first aluminum alloy gasket, the high temperature resistant rubber gasket of second and the second aluminum alloy gasket and pass the hole, be exactly that annular gasket. The middle layer drawtube 2 is provided with a lower limiting edge of a collimating lens 5 or an upper limiting edge of a focusing lens 7. If the lower limiting edge of the collimating lens 5 is arranged in the middle-layer lens barrel 2, the collimating lens 5 is arranged in the middle-layer lens barrel 2 and on the lower limiting edge of the collimating lens 5; if the middle lens barrel 2 is internally provided with the upper limit edge of the focusing lens 7, the focusing lens 7 is arranged in the middle lens barrel 2 and below the upper limit edge of the focusing lens 7.
Be equipped with first gasket 4 on collimating lens 5, first gasket 4 includes first high temperature resistant rubber gasket and first aluminum alloy gasket, and collimating lens 5, first high temperature resistant rubber gasket and first aluminum alloy gasket set up in order from supreme down. The lower surface of the first gasket 4 is in contact connection with the collimating lens 5, the upper surface of the first gasket is in contact connection with the upper layer lens barrel 1, and the upper layer lens barrel 1 is in threaded connection with the middle layer lens barrel 2 and then serves as the upper limit of the first gasket 4. The collimating lens 5, the first high temperature resistant rubber gasket and the first aluminum alloy gasket are fixed through the lower limiting edge of the collimating lens 5 and the upper layer lens barrel 1 connected with the middle layer lens barrel 2. That is, the upper limiting edge of the first gasket 4 is arranged on the upper lens cone 1, the first internal thread is arranged below the upper limiting edge of the first gasket 4, and when the upper lens cone 1 is in threaded connection with the middle lens cone 2, the first aluminum alloy gasket can be in contact connection with the upper limiting edge of the first gasket 4. A first high-temperature-resistant rubber tube 6 is arranged below the collimating lens 5, a focusing lens 7 is arranged below the high-temperature-resistant rubber tube, the upper surface of the first high-temperature-resistant rubber tube 6 is in contact with the collimating lens 5, the lower surface of the first high-temperature-resistant rubber tube is in contact with the upper limiting edge of the focusing lens 7, or the upper surface of the first high-temperature-resistant rubber tube 6 is in contact with the lower limiting edge of the collimating lens 5, and the lower surface of the first high-temperature-resistant rubber tube is in contact with the focusing lens 7. 7 downside of focusing lens is equipped with second high temperature resistant rubber tube 8, protective glass piece 9, second gasket 10 and third high temperature resistant rubber tube 11, and second gasket 10 includes second high temperature resistant rubber gasket and second aluminum alloy gasket, and focusing lens 7, second high temperature resistant rubber tube 8, protective glass piece 9, second high temperature resistant rubber gasket, second aluminum alloy gasket and third high temperature resistant rubber tube 11 set up from last to down in order. The upper surface of the second high-temperature-resistant rubber tube 8 is in contact connection with the focusing lens 7, the lower surface of the second high-temperature-resistant rubber tube 8 is in contact connection with the upper surface of the protection lens 9, the lower surface of the protection lens 9 is in contact connection with the upper surface of the second high-temperature-resistant rubber gasket, the lower surface of the second high-temperature-resistant rubber gasket is in contact connection with the upper surface of the second aluminum alloy gasket, the lower surface of the second aluminum alloy gasket is in contact connection with the upper surface of the third high-temperature-resistant rubber tube 11, the lower surface of the third high-temperature-resistant rubber tube 11 is in contact connection with the bottom lens barrel 3, and the bottom lens barrel 3 is in threaded connection with the middle lens barrel 2 and then is limited as the lower part of the third high-temperature-resistant rubber tube 11. The focusing lens 7, the high-temperature resistant rubber tube, the second high-temperature resistant rubber gasket, the second aluminum alloy gasket and the third high-temperature resistant rubber tube 11 are fixed through the upper limiting edge of the focusing lens 7 and the bottom layer lens barrel 3 connected with the middle layer lens barrel 2. That is to say, be equipped with the lower spacing edge 3.1 of third high temperature resistant rubber pipe on the bottom lens cone 3, the second internal thread sets up the lower spacing edge 3.1's of third high temperature resistant rubber pipe top, and when 3 threaded connection middle level lens cones 2 of bottom lens cone, third high temperature resistant rubber pipe 11 can contact the lower spacing edge 3.1 of connecting the third high temperature resistant rubber pipe.
The materials of the first high-temperature resistant rubber tube 6, the second high-temperature resistant rubber tube 8, the third high-temperature resistant rubber tube 11, the first high-temperature resistant rubber gasket and the second high-temperature resistant rubber gasket can adopt fluororubber 246.
The simple laser welding head also comprises a fixing support 12, the fixing support 12 is connected with the outer surface of the middle layer lens barrel 2, the fixing support 12 is used for connecting laser welding equipment, and the simple laser welding head is connected with the main body of the laser welding equipment through the fixing support 12.
The simple laser welding head of the utility model has the following installation process: be equipped with the upper limit of focusing lens 7 in middle level lens cone 2 and follow the installation screens of focusing lens 7, put into middle level lens cone 2 with the focusing lens convex surface up from middle level lens cone 2 bottom, the upper limit of focusing lens convex surface contact focusing lens 7 is followed, put into second high temperature resistant rubber tube 8 and support the focusing lens again in middle level lens cone 2 bottom, second high temperature resistant rubber tube 8 laminating middle level lens cone 2 inner wall, put into middle level lens cone 2 from middle level lens cone 2 bottom with protection lens 9 and support second high temperature resistant rubber tube 8, put into second high temperature resistant rubber gasket and second aluminum alloy gasket in proper order, second high temperature resistant rubber gasket hugs closely protection lens 9. And the third high-temperature resistant rubber tube 11 is abutted against the corresponding gasket of the focusing lens. And aligning the second internal thread of the bottom layer lens barrel 3 with the second external thread of the middle layer lens barrel 2, and screwing and connecting the bottom layer lens barrel 3 and the middle layer lens barrel 2 through the threads. The first high temperature resistant rubber tube 6 is put into the top end of the middle layer lens barrel 2, and the bottom of the first high temperature resistant rubber tube is propped against the convex surface of the focusing lens. The collimating lens is placed from the top end of the middle-layer lens barrel 2 with the convex surface of the collimating lens facing downwards, and then the first high-temperature-resistant rubber gasket and the first aluminum alloy gasket are sequentially placed, and the first high-temperature-resistant rubber gasket is tightly attached to the collimating lens. The first internal thread of the upper layer lens barrel 1 is aligned with the first external thread 2.1 of the middle layer lens barrel 2, and the upper layer lens barrel 1 and the middle layer lens barrel 2 are screwed up and screwed down through threads. The assembled lens barrel is fixed to a laser welding apparatus using a fixing bracket 12. The laser fiber head is aligned to the fiber plug socket 1.1 and fixed by three fixing screws through the screw holes 1.2.
According to the simple laser welding head, light is emitted through the optical fiber, and then the light passes through the collimating lens 5 and the focusing lens 7 to form welding point-shaped light spots, wherein the protective lens 9 can prevent gas dust from entering the lens barrel to influence welding light beams during welding. Distance between optic fibre and collimating lens 5 can be adjusted through the thickness of selecting first gasket 4, distance between collimating lens 5 and the focusing lens 7 can be adjusted through the thickness of selecting first high temperature resistant rubber tube 6, through between optic fibre and collimating lens 5, distance between collimating lens 5 and the focusing lens 7 is adjusted, the laser welding head can deal with different basic welding demands, do simple and easy adjusting luminance, not only adjust luminance and need not to do the position that complicated mechanical structure removed each lens, moreover the equipment is easy with the dismantlement. Compared with the existing laser welding head, the simple laser welding head has low cost, can replace the parts of the laser welding head aiming at the optical fiber lasers with different optical parameters, can be matched with more optical fiber lasers, and is suitable for welding without requiring extremely high precision.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a simple and easy laser welder head, its characterized in that, includes the lens cone, from last to being provided with first gasket (4), collimating lens (5), first high temperature resistant rubber tube (6), focusing lens (7), second high temperature resistant rubber tube (8), protection lens (9), second gasket (10) and third high temperature resistant rubber tube (11) down in order in the lens cone, the lens cone includes from last to setting up and threaded connection's upper lens cone (1), middle level lens cone (2) and bottom lens cone (3) down in order, upper lens cone (1) upper end is for optical fiber socket (1.1), and collimating lens (5), first high temperature resistant rubber tube (6), focusing lens (7), second high temperature resistant rubber tube (8) and protection lens (9) are arranged in middle level lens cone (2).
2. The simple laser welding head according to claim 1, characterized in that the upper barrel (1) is provided with screw holes (1.2), and the optical fiber can be fixed in the optical fiber socket (1.1) through the screw holes (1.2) and the screws matching the screw holes (1.2).
3. The simple laser welding head according to claim 1, characterized in that the upper barrel (1) is provided with an upper limiting edge of the first gasket (4), and the bottom barrel (3) is provided with a lower limiting edge (3.1) of the third high temperature resistant rubber tube.
4. A simple laser welding head according to claim 1, characterized in that the second gasket (10) and the third high temperature resistant rubber tube (11) are located in the middle barrel (2).
5. A simple laser welding head according to claim 1, characterized in that the middle barrel (2) is provided with a lower limiting edge of a collimating lens (5) or an upper limiting edge of a focusing lens (7).
6. The simple laser welding head of claim 1 characterized in that the first gasket (4) is connected with the collimating lens (5), the first high temperature resistant rubber tube (6) is connected with the collimating lens (5) or the focusing lens (7), and the focusing lens (7), the second high temperature resistant rubber tube (8), the protective lens (9), the second gasket (10) and the third high temperature resistant rubber tube (11) are connected in sequence.
7. The simple laser welding head of claim 1, wherein the first gasket (4) comprises a first high temperature resistant rubber gasket and a first aluminum alloy gasket located on the upper surface of the first high temperature resistant rubber gasket, the first aluminum alloy gasket can be connected with the upper lens barrel (1), the second gasket (10) comprises a second high temperature resistant rubber gasket and a second aluminum alloy gasket, the protective lens (9), the second high temperature resistant rubber gasket and the second aluminum alloy gasket are sequentially arranged from top to bottom, and the second aluminum alloy gasket is connected with the third high temperature resistant rubber tube (11).
8. The simple laser welding head according to claim 1, wherein the inner surface of the upper barrel (1) is provided with a first internal thread, the upper side of the outer surface of the middle barrel (2) is provided with a first external thread (2.1) corresponding to the first internal thread, the lower side of the outer surface of the middle barrel (2) is provided with a second external thread, and the inner surface of the bottom barrel (3) is provided with a second internal thread corresponding to the second external thread.
9. A simple laser welding head as defined in claim 8, characterized in that the number of turns of the first external thread (2.1) is greater than the number of turns of the first internal thread and the number of turns of the second external thread is greater than the number of turns of the second internal thread.
10. The simple laser welding head of claim 1 further comprising a fixing bracket (12), wherein the fixing bracket (12) is connected to the middle barrel (2), and the laser welding head is connected to the laser welding device through the fixing bracket (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122969323.XU CN216502964U (en) | 2021-11-30 | 2021-11-30 | Simple laser welding head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122969323.XU CN216502964U (en) | 2021-11-30 | 2021-11-30 | Simple laser welding head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216502964U true CN216502964U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122969323.XU Active CN216502964U (en) | 2021-11-30 | 2021-11-30 | Simple laser welding head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216502964U (en) |
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2021
- 2021-11-30 CN CN202122969323.XU patent/CN216502964U/en active Active
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