CN213945273U - Laser electric dynamic continuous focusing beam expanding device - Google Patents
Laser electric dynamic continuous focusing beam expanding device Download PDFInfo
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- CN213945273U CN213945273U CN202022654525.0U CN202022654525U CN213945273U CN 213945273 U CN213945273 U CN 213945273U CN 202022654525 U CN202022654525 U CN 202022654525U CN 213945273 U CN213945273 U CN 213945273U
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Abstract
The utility model provides a laser electric dynamic continuous focusing beam expanding device, which comprises an electric control device and an optical device, wherein the electric control device comprises a driver, a screw motor, a connecting piece, a first guide rail and a second guide rail, the driver is electrically connected with the screw motor, the screw motor is fixedly connected with the connecting piece, the connecting piece is sleeved on the first guide rail and the second guide rail, the optical device comprises an optical fiber connector and a beam expanding lens assembly, the optical fiber connector is provided with an optical fiber interface for connecting an optical fiber, the optical fiber connector and the beam expanding lens assembly are arranged between the first guide rail and the second guide rail from left to right, the beam expanding lens assembly is fixedly connected on the connecting piece, the driver drives the screw motor to rotate, the screw motor rotates to drive the connecting piece to move left and right along the first guide rail and the second guide rail, and then the beam expanding lens component is driven to move left and right, so that the distance between the optical fiber interface and the beam expanding lens component is changed.
Description
Technical Field
The utility model relates to a laser welding technical field, concretely relates to electronic dynamic continuous focusing of laser expands beam device.
Background
The laser beam emitted from the laser has a fixed divergence angle, and for laser processing, a focusing lens can be used to obtain a fine high-power-density light spot only by adjusting a beam expanding lens to change the laser beam into a parallel beam. In laser ranging, the collimation of laser must be improved to the utmost extent through a beam expander to obtain an ideal long-distance measuring effect.
The existing beam expander product cannot continuously focus or has a narrow angle adjusting range, and has low adaptability and compatibility for different demand scenes, so that the requirements are more and more difficult to meet.
Disclosure of Invention
In view of this, the utility model provides a can connect the electronic dynamic continuous focusing beam expanding device of laser of adjusting beam emission angle.
The utility model provides a laser electric dynamic continuous focusing beam expanding device, which comprises an electric control device and an optical device, wherein the electric control device comprises a driver, a screw motor, a connecting piece, a first guide rail and a second guide rail, the driver is electrically connected with the screw motor, the screw motor is fixedly connected with the connecting piece, the connecting piece is sleeved on the first guide rail and the second guide rail, the connecting piece can slide left and right along the first guide rail and the second guide rail, the optical device comprises an optical fiber connector and a beam expanding lens assembly, an optical fiber interface used for connecting an optical fiber is arranged on the optical fiber connector, the optical fiber connector and the beam expanding lens assembly are sequentially arranged between the first guide rail and the second guide rail from left to right, the beam expanding lens assembly is fixedly connected on the connecting piece, the driver drives the screw motor to rotate, the screw motor drives the connecting piece to move left and right along the first guide rail and the second guide rail, the connector moves left and right to drive the beam-expanding lens assembly to move left and right, and after the beam-expanding lens assembly moves left and right, the distance between the optical fiber interface and the beam-expanding lens assembly is changed.
Further, electric control device still includes first linear bearing and second linear bearing, first linear bearing cover is established on first guide rail, second linear bearing cover is established on the second guide rail, the connecting piece includes connecting piece front portion, connecting piece middle part and connecting piece rear portion, the anterior right-hand member face of connecting piece and first linear bearing fixed connection, the right-hand member face and the second linear bearing fixed connection at connecting piece rear portion.
Further, the screw motor comprises a screw and a nut meshed with the screw, and the nut is fixedly connected with the front end face of the front part of the connecting piece.
Further, the beam expander lens assembly comprises a beam expander lens assembly shell, a first lens, a second lens and a third lens, wherein the beam expander lens assembly shell is fixedly connected to the middle of the connecting piece, the first lens, the second lens and the third lens are arranged in the beam expander lens assembly shell, and the first lens, the second lens and the third lens are sequentially arranged along the light path transmission direction of the laser.
Further, the first lens is a plano-convex lens, the second lens is a plano-concave lens, and the third lens is a biconvex lens.
Further, the optical device further comprises a protective mirror assembly, a protective mirror is arranged in the protective mirror assembly, and the protective mirror is arranged in the light outgoing direction of the third lens.
The utility model provides a beneficial effect that technical scheme brought is: the device provided by the utility model can the electric control adjust beam expander subassembly's position, and beam expander subassembly activity degree of freedom is high, and the light beam launch angle size of production is adjustable in succession, can adjust little divergence angle to the focus of gaussian beam is better, can adjust the luminance and the scope in the launch angle control lighting process again.
Drawings
Fig. 1 is the utility model relates to a structural schematic diagram of the electronic dynamic continuous focusing beam expanding device of laser.
Fig. 2 is the utility model relates to a beam expander assembly of the electronic dynamic continuous focusing beam expander device of laser removes the change contrast sketch map of back beam angle.
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, an embodiment of the present invention provides an electric dynamic continuous focusing and beam expanding device for laser, which includes an electric control device and an optical device.
The electric control device comprises a driver 100, a screw motor 101, a connecting piece 102, a first linear bearing 103, a second linear bearing 104, a first guide rail 105 and a second guide rail 106, the driver 100 is electrically connected with the screw rod motor 101 through the driver interface 107, the screw rod motor 101 comprises a screw rod 1011 and a nut 1012 meshed with the screw rod 1011, the connecting piece 102 is sleeved on the first guide rail 105 and the second guide rail 106, the connecting piece 102 comprises a connecting piece front part 1021, a connecting piece middle part 1022 and a connecting piece rear part 1023, the front end surface of the connecting piece front part 1021 is fixedly connected with the nut 1012, the right end surface of the connecting piece front part 1021 is fixedly connected with the first linear bearing 103, the right end surface of the connecting piece rear part 1023 is fixedly connected with the second linear bearing 104, the first linear bearing 103 is sleeved on the first guide rail 105, the second linear bearing 104 is sleeved on the second guide rail 106, and the first guide rail 105 and the second guide rail 106 are arranged in parallel; in this embodiment, nut 1012 is a gap-free nut.
The optical device comprises an optical fiber connector 108, a beam expander assembly 109 and a protective mirror assembly 110, wherein the optical fiber connector 108, the beam expander assembly 109 and the protective mirror assembly 110 are sequentially arranged between a first guide rail 105 and a second guide rail 106 from left to right, an optical fiber interface 1081 for connecting an optical fiber is arranged on the optical fiber connector 108, laser emitted by a laser generator is transmitted to the optical fiber interface 1081 through the optical fiber, the beam expander assembly 109 comprises a beam expander assembly housing 1091, a first lens 1092, a second lens 1093 and a third lens 1094, the beam expander assembly housing 1091 is fixedly connected to a connector middle part 1022, the first lens 1092, the second lens 1093 and the third lens 1094 are positioned in the beam expander assembly housing 1091 and sequentially arranged along the optical path transmission direction of the laser, a protective mirror 1101 is arranged in the protective mirror assembly 110, the protective mirror 1101 is arranged in the light emergent direction of the third lens 1094, and the protective mirror 1101 is used for protecting the first lens 1092, A second lens 1093 and a third lens 1094; in this embodiment, the first lens 1092 is a plano-convex lens, the second lens 1093 is a plano-concave lens, and the third lens 1094 is a biconvex lens.
The utility model provides an electronic dynamic continuous focusing beam expanding device's of laser theory of operation does: the screw 1011 is driven to rotate by the driver 100, the screw 1011 drives the nut 1012 to move left and right after rotating, the nut 1012 drives the connecting piece 102 to move left and right along the first guide rail 105 and the second guide rail 106 under the matching of the first linear bearing 103 and the second linear bearing 104 after moving, so as to drive the beam expander assembly shell 1091 to move left and right, and after the beam expander assembly shell 1091 moves left and right due to the fixed position of the optical fiber connector 108, the distance between the beam expander assembly 109 and the optical fiber interface 1081 changes, namely the distance between the optical fiber interface 1081 and the first lens 1092 changes, and the beam angle of laser transmitted from the optical fiber interface 1081 changes; a comparison of the angle of the light beam after the distance between the optical fiber interface 1081 and the first lens 1092 is shown in FIGS. 2A and 2B.
In this embodiment, the moving range of the beam-expanding lens assembly 109 is 0-18.5mm, and the adjustment angle of the laser beam is 0.2 ° -10 °.
The above mentioned parts are not related to the prior art.
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 laser electric dynamic continuous focusing beam expanding device is characterized by comprising an electric control device and an optical device, wherein the electric control device comprises a driver, a screw motor, a connecting piece, a first guide rail and a second guide rail, the driver is electrically connected with the screw motor, the screw motor is fixedly connected with the connecting piece, the connecting piece is sleeved on the first guide rail and the second guide rail, the optical device comprises an optical fiber connector and a beam expanding lens assembly, an optical fiber interface used for connecting optical fibers is arranged on the optical fiber connector, the optical fiber connector and the beam expanding lens assembly are sequentially arranged between the first guide rail and the second guide rail from left to right, the beam expanding lens assembly is fixedly connected onto the connecting piece, the driver drives the screw motor to rotate, the screw motor rotates to drive the connecting piece to move left and right along the first guide rail and the second guide rail, the connecting piece moves left and right to drive the beam expanding lens assembly to move left and right, the spacing between the fiber interface and the beam expander lens assembly is changed.
2. The laser electric dynamic continuous focusing beam expanding device according to claim 1, wherein the electric control device further comprises a first linear bearing and a second linear bearing, the first linear bearing is sleeved on the first guide rail, the second linear bearing is sleeved on the second guide rail, the connecting piece comprises a connecting piece front portion, a connecting piece middle portion and a connecting piece rear portion, the right end face of the connecting piece front portion is fixedly connected with the first linear bearing, and the right end face of the connecting piece rear portion is fixedly connected with the second linear bearing.
3. The laser electric dynamic continuous focusing beam expanding device according to claim 2, wherein the lead screw motor comprises a screw rod and a nut engaged with the screw rod, and the nut is fixedly connected with the front end face of the front part of the connecting piece.
4. The laser electric dynamic continuous focusing beam expanding device according to claim 2, wherein the beam expanding lens assembly comprises a beam expanding lens assembly housing, a first lens, a second lens and a third lens, the beam expanding lens assembly housing is fixedly connected to the middle of the connecting piece, the first lens, the second lens and the third lens are arranged in the beam expanding lens assembly housing, and the first lens, the second lens and the third lens are arranged in sequence along the optical path transmission direction of the laser.
5. The laser electric dynamic continuous focusing beam expanding device according to claim 4, wherein the first lens is a plano-convex lens, the second lens is a plano-concave lens, and the third lens is a biconvex lens.
6. The laser electric dynamic continuous focusing beam expanding device according to claim 4, wherein the optical device further comprises a protective mirror assembly, a protective mirror is arranged in the protective mirror assembly, and the protective mirror is arranged in the light outgoing direction of the third lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022654525.0U CN213945273U (en) | 2020-11-16 | 2020-11-16 | Laser electric dynamic continuous focusing beam expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022654525.0U CN213945273U (en) | 2020-11-16 | 2020-11-16 | Laser electric dynamic continuous focusing beam expanding device |
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| Publication Number | Publication Date |
|---|---|
| CN213945273U true CN213945273U (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022654525.0U Active CN213945273U (en) | 2020-11-16 | 2020-11-16 | Laser electric dynamic continuous focusing beam expanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213945273U (en) |
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2020
- 2020-11-16 CN CN202022654525.0U patent/CN213945273U/en active Active
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