Lens bonding device

Abstract

The utility model belongs to the technical field of optical equipment, and particularly provides a lens bonding device which comprises a pitching adjusting assembly used for adjusting the pitching angle of a lens and a height adjusting assembly used for adjusting the height of the lens. The adjusting end of the pitching adjusting assembly is provided with a lens reference surface; one side of the lens datum plane is provided with a pressing assembly used for pressing the lens on the lens datum plane; the lens clamping area of the height adjusting assembly is located between the lens datum plane and the pressing assembly. According to the lens bonding device provided by the utility model, the lens height adjusting component is used for controlling the thickness of the glue layer, and the glue dispensing standardization can be realized by matching with the glue dispenser, so that the thickness of the glue layer meets the requirement, and the lens bonding device serves as a buffer layer in an extreme environment to prevent the lens base from deforming and fracturing the lens. In the curing process, angle drift of the lens is prevented through pre-compression, the precision of a finished product is improved, the lens bonding process standard is improved, and follow-up laser automatic production is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical equipment, and in particular relates to a lens bonding device. Background Art

[0002] A single resonant cavity of a solid-state laser is generally composed of multiple lenses. In order to ensure the efficiency and stability of the resonant cavity, high requirements are placed on the pitch and horizontal accuracy of the lens installation, especially the pitch angle of the lens is difficult to adjust during debugging. The existing technology often uses glue to bond the lens to the lens holder, and manually adjusts the pitch angle of the lens during the lens bonding and curing process to ensure the pitch angle between the lens and the bottom surface of the lens holder. However, this method has low adjustment accuracy, and the curing time of the glue used in the resonant cavity is generally 30 minutes. During this period, the volume and internal stress of the glue will generally change to a certain extent, resulting in changes in the angle of the lens. It is necessary for people to make corrections multiple times during the curing process. Not only is it difficult to ensure process consistency, but the pitch angle accuracy of the lens after curing is also low. Utility Model Content

[0003] The utility model aims to overcome the problems of multiple corrections, low precision and poor consistency in the existing lens bonding and curing process.

[0004] To this end, the utility model provides a lens bonding device, including a pitch adjustment component for adjusting the pitch angle of the lens and a height adjustment component for adjusting the height of the lens; the adjustment end of the pitch adjustment component is provided with a lens reference surface; one side of the lens reference surface is provided with a clamping component for pressing the lens onto the lens reference surface; the lens clamping area of ​​the height adjustment component is located between the lens reference surface and the clamping component.

[0005] Specifically, the height adjustment assembly comprises two movable baffles arranged opposite to each other; a V-shaped clamping groove is formed between the two movable baffles; and the lens clamping area is located in the V-shaped clamping groove.

[0006] Specifically, the height adjustment assembly further includes two support plates; the two movable baffles are rotatably connected to the two support plates respectively.

[0007] Specifically, the pitch adjustment assembly comprises a fixed part and a movable part; the lens reference plane is rotatably mounted on the fixed part via the movable part; and the fixed part is provided with an adjusting part for driving the lens reference plane to rotate relative to the fixed part.

[0008] Specifically, a lens reference platform is provided on the movable part; a stress release groove is provided at the connection between the lens reference platform and the movable part; and the lens reference surface is arranged on the lens reference platform.

[0009] Specifically, the adjusting member comprises an adjusting top screw with threads; the fixing member is provided with a threaded hole matching the adjusting top screw; one end of the adjusting top screw passes through the threaded hole and is connected to the movable member.

[0010] Specifically, the pitch adjustment assembly is provided with a light-through hole; the light-through hole passes through the lens reference plane.

[0011] Specifically, the clamping assembly includes a fixed support seat and a movable support seat; the movable support seat is arranged between the lens reference plane and the fixed support seat; the movable support seat is connected to the fixed support seat bracket through an elastic member; a pin is provided on the side of the movable support seat facing the lens reference plane.

[0012] Specifically, the lens bonding device further comprises a base; the pitch adjustment assembly, the height adjustment assembly and the pressing assembly are mounted on the base.

[0013] Specifically, a lens seat limiting groove is provided on the base; the lens seat limiting groove is arranged between the lens reference surface and the pressing assembly.

[0014] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0015] The lens bonding device provided by the utility model uses a lens height adjustment component to control the thickness of the glue layer, and can achieve glue dispensing standardization in conjunction with a glue dispensing machine, so that the glue layer thickness meets the requirements, and acts as a buffer layer in extreme environments to prevent the lens holder from deforming and fracturing the lens. During the curing process, the pre-pressure is used to prevent the lens angle from drifting, improve the precision of the finished product, and help improve the lens bonding process standards and realize the subsequent automated production of lasers.

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the structure of the lens bonding device provided by the utility model.

[0018] Figure 2 It is a top view of the lens bonding device provided by the utility model.

[0019] Figure 3 yes Figure 2 Section view of the middle AA plane.

[0020] Figure 4 The utility model is a schematic diagram of the height adjustment component structure of the lens bonding device provided by the utility model.

[0021] Figure 5 It is a cross-sectional view of a pitch adjustment component of a lens bonding device provided by the utility model.

[0022] Figure 6 The utility model is a schematic diagram of the use of the lens bonding device provided by the utility model.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. base; 2. pitch adjustment assembly; 201. fixing part; 202. adjusting top screw; 203. movable part; 204. stress release groove; 205. lens reference platform; 206. lens reference surface; 207. light hole; 3. height adjustment assembly; 301. support plate; 302. movable baffle; 4. mirror seat limit groove; 5. clamping assembly; 501. movable support seat; 502. ejector pin; 503. elastic part; 504. fixed support seat; 6. mirror seat; 7. lens; 8. laser; 9. adjusting mirror block; 10. aperture; 11. aiming block; 12. observation screen. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0027] Reference Figure 1-5The utility model provides a lens bonding device, including a pitch adjustment component 2 for adjusting the pitch angle of the lens 7 and a height adjustment component 3 for adjusting the height of the lens 7; the adjustment end of the pitch adjustment component 2 is provided with a lens reference surface 206; one side of the lens reference surface 206 is provided with a clamping component 5 for pressing the lens 7 onto the lens reference surface 206; the lens clamping area of ​​the height adjustment component 3 is located between the lens reference surface 206 and the clamping component 5. When in use, fix the lens holder 6 on one side close to the lens reference surface 206, and apply a proper amount of glue according to the set glue layer thickness. Adjust the height adjustment component 3 so that its lens clamping area is at a corresponding height, install the lens 7 into the lens clamping area, and one side surface is in contact with the lens reference surface 206. Use the clamping component 5 to press the lens 7 onto the lens reference surface 206. Figure 6 As shown, the laser 8, the adjustment mirror block 9, the aperture 10, the aiming block 11 and the observation screen 12 are arranged as needed to form an optical path, and the lens bonding device is placed in the corresponding position of the debugging optical path, so that the reflected light of the lens 7 is hit on the CCD, and the difference between the reflected light height and the preset value is observed. The pitch adjustment component 2 is used to adjust the pitch angle of the lens reference surface 206, and then the pitch angle of the lens 7 is adjusted to make the reflected light height consistent with the preset value. At this time, the adjustment is completed, and it is left to stand for a period of time, and the lens 7 is bonded after the glue is cured. The pre-pressure is used to prevent the pitch drift of the lens 7 during the curing process.

[0028] Furthermore, the height adjustment assembly 3 includes two movable baffles 302 arranged opposite to each other; a V-shaped clamping groove is formed between the two movable baffles 302; and the lens clamping area is located in the V-shaped clamping groove. Figure 4 As shown, the upper spacing of the two movable baffles 302 is greater than the lower spacing, and a V-shaped clamping groove with an adjustable angle is formed between the two. When in use, the lens holder 6 is installed below the V-shaped clamping groove, and the angle of the V-shaped clamping groove is adjusted by adjusting the movable baffle 302 according to the required glue thickness, thereby adjusting the height difference between the lens 7 placed in the V-shaped clamping groove and the lens holder 6 below it to meet the glue thickness requirement.

[0029] Specifically, the height adjustment assembly 3 further comprises two support plates 301; the two movable baffles 302 are rotatably connected to the two support plates 301. Optionally, a limit column for limiting the rotation range of the movable baffle 302 is provided on the support plate 301.

[0030] In a detailed embodiment, the pitch adjustment assembly 2 includes a fixed part 201 and a movable part 203; the lens reference plane 206 is rotatably mounted on the fixed part 201 via the movable part 203; the fixed part 201 is provided with an adjustment member for driving the lens reference plane 206 to rotate relative to the fixed part 201. After the pressing assembly 5 presses the lens 7 against the lens reference plane 206, the adjustment member and the movable part 203 cooperate to make the lens reference plane 206 rotate relative to the fixed part 201, adjust the angle between the lens reference plane 206 and the horizontal, and then adjust the pitch angle of the lens 7. Figure 5 As shown, the lower end of the movable member 203 and the lower end of the fixed member 201 can be elastically connected by plastic, metal sheet or other feasible elastic materials, so that the upper end of the movable member 203 can rotate relative to the fixed member 201 around the connection point under the action of external force.

[0031] Specifically, the movable part 203 is provided with a lens reference platform 205; a stress release groove 204 is provided at the connection between the lens reference platform 205 and the movable part 203; and the lens reference surface 206 is provided on the lens reference platform 205. The stress release groove 204 is used to prevent the lens reference surface 206 from changing its surface shape.

[0032] In an optimized implementation, the adjusting member includes a threaded adjusting top screw 202; the fixing member 201 is provided with a threaded hole matching the adjusting top screw 202; one end of the adjusting top screw 202 passes through the threaded hole and is connected to the movable member 203. Figure 5 As described above, by twisting the adjusting screw 202, pressure is applied to the movable member 203, so that the movable member 203 drives the lens reference plane 206 to rotate, thereby adjusting the pitch angle.

[0033] Furthermore, the pitch adjustment assembly 2 is provided with a light-through hole 207 ; the light-through hole 207 passes through the lens reference plane 206 , so as to facilitate the passage of light during testing.

[0034] Optionally, the pressing assembly 5 includes a fixed support seat 504 and a movable support seat 501; the movable support seat 501 is arranged between the lens reference surface 206 and the fixed support seat 504; the movable support seat 501 is connected to the fixed support seat 504 bracket through an elastic member 503; and a pin 502 is provided on the side of the movable support seat 501 facing the lens reference surface 206. After glue is applied to the lens seat 6, the elastic member 503 is compressed to expose the space between the movable support seat 501 and the lens reference surface 206, so that the lens 7 is placed in the lens clamping area of ​​the height adjustment assembly 3, and one side is in contact with the lens reference surface 206. Then the elastic member 503 is released, and the pin 502 on the movable support seat 501 contacts the lens 7, and the lens 7 is pressed under the action of elastic force. The elastic member 503 is preferably a spring.

[0035] In order to facilitate the adjustment of the position of the lens bonding device according to the debugging optical path during testing, the lens bonding device also includes a base 1; the pitch adjustment component 2, the height adjustment component 3 and the pressing component 5 are installed on the base 1.

[0036] In a detailed implementation, a lens seat limiting groove 4 is provided on the base 1; the lens seat limiting groove 4 is arranged between the lens reference surface 206 and the clamping assembly 5 to limit the lens seat 6 during the adjustment process.

[0037] Embodiment 1:

[0038] Reference Figure 1-5 This embodiment provides a lens bonding device, including a base 1; the base 1 is provided with a pitch adjustment component 2, a height adjustment component 3, a lens seat limiting groove 4 and a clamping component 5 in sequence along the length direction.

[0039] The pitch adjustment assembly 2 includes a fixed part 201, a movable part 203, an adjustment screw 202, a lens reference platform 205 and a light hole 207; the bottom of the fixed part 201 is fixed to the base 1; the lower end of the movable part 203 is rotatably connected to the fixed part 201, so that the upper end of the movable part 203 can rotate around the connection point; the lens reference platform 205 is connected to the side of the movable part 203 away from the fixed part 201, and a stress release groove 204 is provided at the connection between the lens reference platform 205 and the movable part 203; the back of the lens reference platform 205 is connected to the side of the movable part 203 away from the fixed part 201, and the stress release groove 204 is provided at the connection between the lens reference platform 205 and the movable part 203; A lens reference surface 206 is provided on the end surface on the side away from the movable part 203. In the initial state, the lens reference surface 206 is perpendicular to the horizontal plane; a thread is provided on the adjusting top screw 202, and a threaded hole matching the thread of the adjusting top screw 202 is provided on the fixing part 201; one end of the adjusting top screw 202 passes through the threaded hole and contacts with the side of the movable part 203 away from the lens reference platform 205; the light hole 207 passes through the fixing part 201, the movable part 203, the lens reference platform 205 and the lens reference surface 206 in sequence along the length direction.

[0040] The height adjustment assembly 3 includes two support plates 301 and two movable baffles 302; the two support plates 301 are respectively arranged on both sides of the width direction of the lens reference platform 205, and the bottom is fixed on the base 1; the two movable baffles 302 are respectively rotatably connected to the two support plates 301, and the rotation axis is parallel to the axis of the light hole 207; a V-shaped clamping groove is formed between the two movable baffles 302, and the V-shaped clamping groove is arranged adjacent to the lens reference surface 206.

[0041] The mirror base limiting groove 4 is arranged below the V-shaped clamping groove.

[0042] The clamping assembly 5 includes a fixed support seat 504 and a movable support seat 501; the movable support seat 501 is fixed on the base 1; the movable support seat 501 is arranged between the lens reference surface 206 and the fixed support seat 504; the movable support seat 501 and the fixed support seat 504 bracket are connected through an elastic member 503; a pin 502 is provided on the side of the movable support seat 501 facing the lens reference surface 206.

[0043] When in use, first fix the lens holder 6 on the lens holder limit groove 4, apply a proper amount of glue according to the set glue thickness, rotate the two movable baffles 302, adjust the angle of the V-shaped clamping groove, limit the distance between the lens 7 and the lens holder 6, and thus control the thickness of the glue during curing. Compress the elastic member 503 to expose the space between the movable support seat 501 and the lens reference surface 206, put the lens 7 into the V-shaped clamping groove, and fit one side with the lens reference surface 206. Release the elastic member 503, and the ejector pin 502 on the movable support seat 501 contacts the lens 7, and the lens 7 is pressed tightly under the action of the elastic force. Figure 6 As shown, put the lens bonding device into the corresponding position of the debugging optical path, so that the reflected light of the lens 7 hits the CCD, and observe the difference between the reflected light height and the preset value. Rotate the adjustment screw 202 to apply pressure to the movable part 203. Under the action of external force, the movable part 203 rotates around the connection point with the fixed part 201, and the pitch angle changes, thereby driving the pitch angle of the lens reference surface 206 to change. When the reflected light height is consistent with the preset value, the adjustment is completed. Let it stand for a period of time, and during the standing process, the clamping assembly 5 keeps applying pressure to prevent the angle of the lens 7 from drifting. After the glue is cured, compress the elastic member 503 to make the ejector pin 502 leave the lens 7, take out the lens 7 and the lens holder 6, and complete the bonding of the lens 7.

[0044] The above examples are merely illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. All designs that are identical or similar to the present invention fall within the protection scope of the present invention.

Claims

1. A lens bonding device, characterized in that: The invention comprises a pitch adjustment component (2) for adjusting the pitch angle of a lens (7) and a height adjustment component (3) for adjusting the height of the lens (7); a lens reference surface (206) is provided at the adjustment end of the pitch adjustment component (2); a pressing component (5) for pressing the lens (7) onto the lens reference surface (206) is provided on one side of the lens reference surface (206); and a lens clamping area of ​​the height adjustment component (3) is located between the lens reference surface (206) and the pressing component (5).

2. The lens bonding device according to claim 1, characterized in that: The height adjustment component (3) comprises two movable baffles (302) arranged opposite to each other; a V-shaped clamping groove is formed between the two movable baffles (302); and the lens clamping area is located in the V-shaped clamping groove.

3. The lens bonding device according to claim 2, characterized in that: The height adjustment assembly (3) further comprises two support plates (301); the two movable baffles (302) are rotatably connected to the two support plates (301) respectively.

4. The lens bonding device according to claim 1, characterized in that: The pitch adjustment assembly (2) comprises a fixed part (201) and a movable part (203); the lens reference surface (206) is rotatably mounted on the fixed part (201) via the movable part (203); and an adjustment part is provided on the fixed part (201) for driving the lens reference surface (206) to rotate relative to the fixed part (201).

5. The lens bonding device according to claim 4, characterized in that: A lens reference platform (205) is provided on the movable part (203); a stress release groove (204) is provided at the connection between the lens reference platform (205) and the movable part (203); and the lens reference surface (206) is arranged on the lens reference platform (205).

6. The lens bonding device according to claim 4, characterized in that: The adjusting member comprises an adjusting top screw (202) with threads; the fixing member (201) is provided with a threaded hole matching the adjusting top screw (202); one end of the adjusting top screw (202) passes through the threaded hole and is connected to the movable member (203).

7. The lens bonding device according to claim 1, characterized in that: The pitch adjustment assembly (2) is provided with a light-through hole (207); the light-through hole (207) passes through the lens reference surface (206).

8. The lens bonding device according to claim 1, characterized in that: The clamping assembly (5) comprises a fixed support seat (504) and a movable support seat (501); the movable support seat (501) is arranged between the lens reference surface (206) and the fixed support seat (504); the movable support seat (501) and the bracket of the fixed support seat (504) are connected via an elastic member (503); and a ejector pin (502) is provided on the side of the movable support seat (501) facing the lens reference surface (206).

9. The lens bonding device according to claim 1, characterized in that: It also comprises a base (1); the pitch adjustment assembly (2), the height adjustment assembly (3) and the clamping assembly (5) are mounted on the base (1).

10. The lens bonding device according to claim 9, characterized in that: The base (1) is provided with a lens seat limiting groove (4); the lens seat limiting groove (4) is arranged between the lens reference surface (206) and the pressing assembly (5).

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