Angle-adjustable reflector module

Abstract

The utility model discloses an angle-adjustable reflector module, which comprises a lens assembly and a mounting seat, the lens assembly comprises a lens base, a reflector and a cover plate, the top surface of the lens base is provided with a first sinking groove, the bottom surface of the first sinking groove is provided with a sinking table, the reflector is embedded in the sinking table, the cover plate is pressed above the reflector, and the mounting seat is arranged on the mounting seat. Four corners of the reflecting mirror and the cover plate are fixed by dispensing silica gel, a hollow part for exposing the reflecting mirror is arranged in the middle of the cover plate, adjusting screws are arranged at three corners of the lens base in a penetrating manner, three threaded holes corresponding to the three adjusting screws are formed in the mounting seat, and the mounting seat is fixedly connected with the reflecting mirror through the cover plate. Adjusting screws are inserted into the corresponding threaded holes in a threaded mode and sleeved with springs, and the springs are located between the bottom face of the lens base and the installation base. According to the utility model, angle adjustment of an optical path can be realized, and the optical performance of the lens is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of optical devices, in particular to a reflector module with adjustable angle. Background Art

[0002] As a new processing method, fiber laser is increasingly used in metal welding, plastic welding, 3D printing, cleaning and other fields, and the application of corresponding optical components is also indispensable. When the overall optical path is too long or the direction of optical path propagation needs to be changed according to the overall layout requirements, the reflection module is indispensable.

[0003] There are many types of reflector module adjustment mechanisms available on the market, but they all have their own limitations. It is relatively rare to find a mechanism that can achieve two-dimensional angle adjustment without affecting the lens surface shape and can be used in actual high-power laser processing. There are still many restrictions on its use. The most widely used two-dimensional angle adjustment mechanism on the market currently has two angular rotations for adjustment; angular rotation can ensure that the light path is incident vertically or at the required angle, which is the most common adjustment requirement in optical applications and testing. The limitation is that the object clamped by the structure is directly a lens, and there are only two mutually perpendicular adjustment variables. When the actual light path power is relatively high, the lens needs to be completely fixed, and directly clamping the lens will have a certain impact on the surface shape of the lens. This situation has a decisive influence on the subsequent beam quality in the reflector. Utility Model Content

[0004] In view of the problems existing in the above-mentioned prior art, the utility model aims to provide a reflector module with adjustable angle, which can adjust the angle of the reflecting surface of the reflector, thereby adjusting the angle of the light path, and can also ensure the stability of the optical performance of the reflector lens.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes an angle-adjustable reflector module, including a lens assembly and a mounting seat, the lens assembly including a lens base, a reflector and a cover plate, the top surface of the lens base is provided with a first recessed groove corresponding to the cover plate, the bottom surface of the first recessed groove is provided with a recessed platform corresponding to the reflector, the lower end of the reflector is embedded in the recessed platform, the cover plate is pressed above the reflector and embedded in the first recessed groove, and is locked on the lens base by setting fixing screws at four corners, the four corners of the reflector and the cover plate are fixed by point silicone, the middle part of the cover plate is provided with a hollow part for the reflector to be exposed, three corners of the lens base are provided with adjusting screws, the mounting seat is provided with three threaded holes corresponding to the three adjusting screws, the adjusting screws are threadedly inserted in the corresponding threaded holes, so as to realize the positioning and installation of the lens assembly on the mounting seat, the adjusting screw is sleeved with a spring, and the spring is interposed between the bottom surface of the lens base and the mounting seat.

[0006] In the above solution: the cavity between the cover plate and the lens base is filled with silicone to ensure the installation stability of the reflector.

[0007] In the above scheme: except for the four corners, the rest of the sinking platform is hollowed out to reduce the weight.

[0008] In the above scheme: a second recessed groove is provided on the back of the cover plate corresponding to the reflector, and the upper end of the reflector is embedded in the second recessed groove to ensure the installation stability of the reflector.

[0009] In the above scheme: the hollow part of the cover plate is set in an elliptical shape to facilitate incident light and outgoing light.

[0010] In the above scheme: the interior of the mounting seat is hollow, and the mounting seat is provided with side openings and a top opening, and the bottom end of the mounting seat is provided with a through hole and a pin hole, which is convenient for positioning and assembling the mounting seat to facilitate the subsequent use of the optical path.

[0011] In the above scheme: the cover plate is locked on the lens base by setting fixing screws at the four corners, which has a simple structure, is easy to assemble, and is not easy to fall off.

[0012] In the above scheme: the adjusting screw is also sleeved with a spring washer, and the spring washer is located between the top surface of the lens base and the head of the adjusting screw to prevent the adjusting screw from crushing or wearing the lens base.

[0013] The beneficial effects of the utility model are: 1. Since the lens assembly is suspended and mounted on the mounting seat, it is supported and fixed by three springs. By adjusting a certain adjusting screw alone or adjusting multiple adjusting screws at the same time, the angle of the reflective mirror surface can be adjusted to meet the angle requirements of the outgoing light, and the adjustment method is flexible.

[0014] For example, three adjusting screws are named adjusting screw 1, adjusting screw 2 and adjusting screw 3, and adjusting screw 2 is between adjusting screw 1 and adjusting screw 3; when adjusting screw 1 and adjusting screw 2 are adjusted at the same time and adjusting screw 3 does not move, the reflector can deflect toward one side of adjusting screw 1 and adjusting screw 2, and the line connecting adjusting screw 1 and adjusting screw 2 is used as the rotation axis; when adjusting screw 2 and adjusting screw 3 are adjusted at the same time and adjusting screw 1 does not move, the reflector can deflect toward one side of adjusting screw 2 and adjusting screw 3, and the line connecting adjusting screw 2 and adjusting screw 3 is used as the rotation axis; that is, the reflector can realize angle adjustment with respect to two mutually perpendicular directions.

[0015] By adjusting screw 1, adjusting screw 2 and adjusting screw 3 at the same time, the height of the emitted light can also be adjusted.

[0016] 2. The four corners of the reflector are fixed to the cover plate by point silicone, which helps to avoid direct contact between the reflective surface of the reflector and mechanical parts and affect the optical performance of the reflective surface of the lens (mainly surface parameters).

[0017] In summary, the utility model can realize the angle adjustment of the reflecting surface of the reflector, thereby realizing the angle adjustment of the optical path; the optical performance of the lens is stable, and the reflecting surface of the lens does not contact the mechanical parts; it can be used in the high-power laser optical path, is easy to install and adjust, and has a stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 yes Figure 1 Schematic diagram from another angle.

[0020] Figure 3 yes Figure 1 sectional view of .

[0021] Figure 4 This is a front view of the lens base.

[0022] Figure 5 This is a schematic diagram of the back side of the cover. DETAILED DESCRIPTION

[0023] like Figure 1 As shown in FIG. 5 , an angle-adjustable reflector module is mainly composed of a lens assembly and a mounting seat 4. The lens assembly includes a lens base 1, a reflector 2 and a cover plate 3.

[0024] A first sinking groove 11 is provided on the top surface of the lens base 1 corresponding to the cover plate 3, and a sinking platform 12 is provided on the bottom surface of the first sinking groove 11 corresponding to the reflector 2. The lower end of the reflector 2 is embedded in the sinking platform 12, and the cover plate 3 is pressed above the reflector 2 and embedded in the first sinking groove 11, and is locked on the lens base 1 by setting fixing screws 5 at the four corners; the four corners of the reflector 2 are fixed to the cover plate 3 by point silicone, and a hollow part is provided in the middle of the cover plate 3 for the reflector 2 to be exposed.

[0025] Adjustment screws 6 are provided on three corners of the lens base 1 , and three threaded holes are provided on the mounting seat corresponding to the three adjustment screws 6 . The adjustment screws 6 are threadedly inserted into the corresponding threaded holes, thereby realizing the positioning and installation of the lens assembly on the mounting seat 4 .

[0026] A spring 7 (VUL3-10, Misumi brand) is sleeved on the adjusting screw 6. The spring 7 is located between the bottom surface of the lens base 1 and the mounting seat and is used to support the lens base 1 so that it is suspended and mounted on the mounting seat 4.

[0027] The adjusting screw 6 is an M3 hexagon socket head screw with a knurled cylindrical head. The adjustment method is hand-tightening or using an hexagon socket wrench of corresponding specifications. The angle of the reflecting surface of the reflector is adjusted by turning the corresponding adjusting screw 6, thereby achieving the angle adjustment of the optical path to meet the angle requirement of the outgoing light.

[0028] Preferably, the cavity between the cover plate 3 and the lens base 1 is filled with silicone to ensure the installation stability of the reflector 2 .

[0029] Preferably, the sink 12 is hollowed out except for the four corners to reduce weight.

[0030] Preferably, a second recessed groove 31 is provided on the back side of the cover plate 3 corresponding to the reflector 2 , and the upper end of the reflector 2 is embedded in the second recessed groove 31 to ensure the installation stability of the reflector 2 .

[0031] Preferably, the hollow portion of the cover plate 3 is elliptical in shape to facilitate incident and outgoing light.

[0032] Preferably, the interior of the mounting seat 4 is hollow, and the mounting seat 4 is provided with side openings and a top opening, and the bottom end of the mounting seat 4 is provided with a through hole and a pin hole 41 to facilitate positioning and assembly of the mounting seat 4 for subsequent use of the optical path.

[0033] Preferably, a spring washer 8 (M3 spring washer) is sleeved on the adjusting screw 6, and the spring washer 8 is located between the top surface of the lens base 1 and the head of the adjusting screw 6 to prevent the adjusting screw 6 from crushing or wearing the lens base 1.

Claims

1. A reflector module with adjustable angle, comprising a lens assembly and a mounting seat (4), wherein the lens assembly comprises a lens base (1), a reflector (2) and a cover plate (3), characterized in that: A first sinking groove (11) is provided on the top surface of the lens base (1) corresponding to the cover plate (3); a sinking platform (12) is provided on the bottom surface of the first sinking groove (11) corresponding to the reflector (2); the lower end of the reflector (2) is embedded in the sinking platform (12); the cover plate (3) is pressed above the reflector (2) and embedded in the first sinking groove (11), and is locked on the lens base (1) by fixing screws (5); the four corners of the reflector (2) and the cover plate (3) are fixed by point silicone; A hollow portion for exposing the reflector (2) is provided in the middle of the cover plate (3); adjusting screws (6) are provided on three corners of the lens base (1); three threaded holes are provided on the mounting seat (4) corresponding to the three adjusting screws (6); the adjusting screws (6) are threadedly inserted into the corresponding threaded holes, thereby realizing the positioning and installation of the lens assembly on the mounting seat (4); a spring (7) is sleeved on the adjusting screw (6); and the spring (7) is interposed between the bottom surface of the lens base (1) and the mounting seat (4).

2. The angle-adjustable reflector module according to claim 1, characterized in that: The cavity between the cover plate (3) and the lens base (1) is filled with silica gel.

3. The angle-adjustable reflector module according to claim 1, characterized in that: The sinking platform (12) is hollowed out except for the four corners.

4. The angle-adjustable reflector module according to claim 1, characterized in that: A second recessed groove (31) is provided on the back side of the cover plate (3) corresponding to the reflector (2), and the upper end of the reflector (2) is embedded in the second recessed groove (31).

5. The angle-adjustable reflector module according to claim 1, characterized in that: The hollowed-out portion of the cover plate (3) is arranged in an elliptical shape.

6. The angle-adjustable reflector module according to claim 1, characterized in that: The interior of the mounting seat (4) is hollow, and a side opening and a top opening are provided on the mounting seat (4). A through hole and a pin hole (41) are provided at the bottom end of the mounting seat (4).

7. The angle-adjustable reflector module according to claim 1, characterized in that: The cover plate (3) is locked on the lens base (1) by arranging fixing screws (5) at four corners.

8. The angle-adjustable reflector module according to claim 1, characterized in that: The adjusting screw (6) is also sleeved with a spring washer (8), and the spring washer (8) is located between the top surface of the lens base (1) and the head of the adjusting screw (6).

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