An optical lens gluing jig

Abstract

The utility model belongs to the field of lens gluing processing discloses an optical lens gluing clamp, including the seat body, the seat body has locking assembly, the placement assembly and extruding component opposite up and down in it, and the placement assembly supports the lens group of gluing, and the extruding component compacts the lens group downward, locking assembly includes the several pressure blocks that set around the placement assembly and are with the lens group height flush, and the turntable that is located several pressure blocks outer circumferential side, several pressure blocks can take the placement assembly as the center and set in the seat body along the radial horizontal movement, the inside surface of turntable has several spiral extruding parts with the placement assembly as the center, and several extruding parts and several pressure blocks correspond to each other and abut, and the lower end of turntable is connected with the seat body screw thread, to drive several pressure blocks centripetal movement and clamp the lens group through the rotation of turntable. In this optical lens gluing clamp, several pressure blocks in locking assembly do radial positioning and locking to the lens group after gluing, and the coaxiality of the optical axis of the lens group is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of lens bonding technology and relates to an optical lens bonding fixture. Background Technology

[0002] Lens bonding refers to the process of bonding two or more lenses together to form an optical component using optical adhesive. Its main purpose is to improve the optical performance, strength, and stability of the lenses, as well as to meet specific imaging requirements.

[0003] Currently, in the lens bonding process, one set of lenses is first placed on a support platform, and then optical adhesive is applied to the upper part of the lenses. Then, another set of lenses is placed on top of the first set of lenses. The upper lens is rotated to make the optical adhesive evenly distributed between the contact surfaces of the two sets of lenses. Finally, the two sets of lenses need to be pressed together and held for a period of time to make the thickness of the optical adhesive between the two sets of lenses uniform, expel air, and bond firmly. When traditional lens bonding jigs are pressing the two sets of lenses together, they are prone to accidental contact when the jigs come into contact with the lenses, causing misalignment between the two sets of lenses and affecting the coaxiality of the optical axis of the lenses after bonding.

[0004] Therefore, improvements need to be made to the existing optical lens bonding fixtures. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] The purpose of this invention is to provide an optical lens bonding clamp to improve the coaxiality of the optical axis of the bonded lens.

[0007] (II) Technical Solution

[0008] To address the aforementioned technical problems, this utility model provides an optical lens bonding clamp, comprising a base body, wherein the base body has an upper and lower opposing placement component and a pressing component, the placement component being used to support the bonded lens assembly, and the pressing component being used to press the lens assembly downwards; it also includes a locking component, the locking component comprising a plurality of pressing blocks arranged around the placement component and flush with the height of the lens assembly, and a turntable disposed on the outer periphery of the plurality of pressing blocks; the plurality of pressing blocks are arranged in the base body and can move horizontally radially about the placement component as the center, the inner surface of the turntable has a plurality of spiral pressing portions about the placement component as the center, and the plurality of pressing portions abut against the plurality of pressing blocks one by one, the lower end of the turntable being threadedly connected to the base body, so that the rotation of the turntable drives the plurality of pressing blocks to move centripetally and clamp the lens assembly.

[0009] Furthermore, the top of the placement component is a set of first rubber seats that are adapted to the bottom contour of the lens group, and the lower end of the placement component is inserted into the seat body by means of a threaded connection, so that the height of the placement component is adjustable; a set of light-transmitting holes are provided through the placement component from top to bottom.

[0010] Furthermore, the upper surface of the first rubber seat 20 is a concave arc surface that matches the bottom contour of the lens group 5.

[0011] Furthermore, a marker point is provided at the center of the bottom of the light-transmitting hole 21 to detect whether it is aligned with the optical axis in the lens group 5.

[0012] Furthermore, the seat body is provided with an inner cylinder and an outer cylinder surrounding the placement component, wherein the plurality of pressure blocks are slidably disposed on the inner cylinder, and the lower end of the turntable is threadedly connected to the outer cylinder.

[0013] Furthermore, the upper end of the inner cylinder is provided with a plurality of guide members corresponding one-to-one with the plurality of pressure blocks, and the pressure blocks are slidably inserted into the guide members to guide the centripetal / centrifugal movement of the pressure blocks.

[0014] Furthermore, the turntable is provided with several force-applying parts with friction textures to apply external force to drive the turntable to rotate.

[0015] Furthermore, the extrusion assembly is supported above the lens assembly by a bracket installed in the housing; the extrusion assembly includes a cylinder with its output shaft pointing downwards, and the output shaft of the cylinder is provided with a second rubber seat for pressing down the lens assembly, and the lower end face of the second rubber seat is adapted to the top contour of the lens assembly.

[0016] Furthermore, a reset assembly is provided between the pressure block and the guide member and / or between the pressure block and the turntable to drive the pressure block to move centrifugally.

[0017] Furthermore, the output shaft of the cylinder is provided with a set of movable sleeves, the upper end of the second rubber seat is slidably inserted into the movable sleeves, and the movable sleeves are provided with a spring that abuts against the second rubber seat to drive the second rubber seat to slide downward.

[0018] (III) Beneficial Effects

[0019] The optical lens bonding fixture provided by the above technical solution has a lower lens supported by a placement component, and an upper lens pressed onto the lower lens by a pressing component, thereby limiting, fixing and compacting the axial direction of the bonded lens assembly. On this basis, several pressure blocks in the locking component are used to radially position and lock the bonded lens assembly, making it difficult for radial misalignment and sliding to occur between the bonded lens assemblies, thus ensuring the coaxiality of the optical axis of the bonded lenses. Attached Figure Description

[0020] Figure 1 This is a perspective view of the optical lens bonding fixture in an embodiment of this utility model;

[0021] Figure 2 for Figure 1 An enlarged view of part A in the image;

[0022] Figure 3 This is a diagram showing the working state of the optical lens bonding fixture in this embodiment of the present invention;

[0023] Icons: 1-Base, 2-Placement component, 20-First rubber seat, 21-Light transmission hole, 3-Extrusion component, 30-Bracket, 31-Cylinder, 310-Output shaft, 32-Modible sleeve, 33-Second rubber seat, 4-Locking component, 40-Outer cylinder, 41-Inner cylinder, 410-Guide component, 42-Turntable, 420-Extrusion part, 421-Force application part, 43-Pressure block, 5-Lens assembly. Detailed Implementation

[0024] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] Reference Figures 1 to 3 This utility model discloses an optical lens bonding clamp for pressing and fixing two or more sets of lenses during the bonding process. The bonding clamp includes a base 1, on which a placement component 2, a pressing component 3 and a locking component 4 are provided.

[0026] Reference Figure 1 The placement component 2 is set on the chassis of the base 1, and the pressing component 3 is located directly above the placement component 2. That is, the placement component 2 and the pressing component 3 are set up opposite each other. The placement component 2 is used to support the glued lens group 5, and the pressing component 3 is used to press the lens group 5 down.

[0027] Specifically, the placement component 2 includes a set of first rubber seats 20. The upper surface of the first rubber seat 20 is a concave arc surface, which is adapted to the bottom contour of the lens group 5. In use, the lower lens to be glued can be placed on the first rubber seat 20. The lower end of the first rubber seat 20 is mounted on a set of threaded posts. The lower end of the threaded posts is inserted into the seat body 1 by means of threaded connection. By turning the threaded posts, the height of the placement component 2 can be adjusted, so that the height position of the lens group 5 placed on the first rubber seat 20 can be adjusted up and down slightly.

[0028] Reference Figure 3 In addition, the placement component 2 also has a set of light-transmitting holes 21 that pass through the first rubber seat 20 and the threaded post from top to bottom. A mark point can be set at the center of the bottom of the light-transmitting hole 21 to detect whether it is aligned with the optical axis in the lens group 5.

[0029] Reference Figure 1 The compression assembly 3 is supported above the placement assembly 2 and the lens group 5 by the bracket 30 installed in the base 1. The purpose of the compression assembly 3 is to press the lens group 5 onto the placement assembly 2 after two or more lenses are glued together to form the lens group 5, so that the lenses inside the lens group 5 are fully glued and fixed.

[0030] Therefore, refer to Figure 1 and Figure 3 The extrusion assembly 3 includes a cylinder 31 with an output shaft 310 pointing downwards. The output shaft 310 of the cylinder 31 is provided with a second rubber seat 33 for pressing down the lens assembly 5, and the lower end face of the second rubber seat 33 is adapted to the top contour of the lens assembly 5.

[0031] Both the first rubber seat 20 and the second rubber seat 33 have a certain degree of elasticity, which can prevent scratches on the surface of the lens assembly 5; in order to avoid the output action of the cylinder 31 causing excessive load on the lens assembly 5, refer to Figure 1 and Figure 2 The output shaft 310 of the cylinder 31 is provided with a set of movable sleeves 32. The movable sleeves 310 are locked between the two rods of the output shaft 310. The upper end of the second rubber seat 33 is slidably inserted into the movable sleeves 32. The movable sleeves 32 are provided with springs that abut against the second rubber seat 33. Therefore, the pressing force that the cylinder 31 finally outputs downward is transmitted to the second rubber seat 33 through the spring, so that the second rubber seat 33 presses the upper end of the lens assembly 5.

[0032] It is easy to understand that during the pressing process of the extrusion component 3, misalignment can easily occur between several layers of lenses inside the stacked lens group 5. Therefore, the purpose of the locking component 4 is to lock the stacked multi-layered lenses in the radial direction.

[0033] Reference Figure 1 and Figure 2The bottom of the base 1 is provided with an inner cylinder 41 and an outer cylinder 40 surrounding the placement component 2. The locking component 4 includes a plurality of pressure blocks 43 surrounding the placement component 2 and flush with the height of the lens group 5. The plurality of pressure blocks 43 are slidably disposed on the inner cylinder 41. Each group of pressure blocks 43 can be horizontally disposed in the base 1 with the placement component 2 as the center and along the radial direction of the circle containing the center. That is, the plurality of pressure blocks 43 can be brought together to lock the lens group 5 composed of multiple stacked lenses.

[0034] Reference Figure 2 Specifically, the upper end of the inner cylinder 41 is provided with a number of guide members 410 corresponding to a number of pressure blocks 43. The pressure blocks 43 are slidably inserted into the guide members 410 to guide the centripetal / centrifugal movement of the pressure blocks 43.

[0035] In addition, refer to Figure 1 and Figure 2 A turntable 42 is provided on the outer periphery of the aforementioned pressure blocks 43. The lower end of the turntable 42 is threaded to the outer cylinder 40. The inner side of the turntable 42 has a plurality of spiral-shaped pressing parts 420 with the placement component 2 as the center, and the plurality of pressing parts 420 abut against the plurality of pressure blocks 43 in a corresponding manner. In this embodiment, four sets of pressure blocks 43 are provided in the locking component 4, and four sets of pressing parts 420 are provided on the inner side of the turntable 42. By rotating the turntable 42, the plurality of pressure blocks 43 can be driven to move centripetally and clamp the lens group 5 through the sliding contact between the pressing parts 420 and the pressure blocks 43.

[0036] Preferably, a rubber pad is provided on the surface of the pressure block 43 that contacts the lens group 5.

[0037] It is easy to understand that, since the lower end of the turntable 42 is threadedly connected to the outer cylinder 40, the thickness of the extrusion part 420 in the axial direction of the outer cylinder 40 must be sufficient so that the lifting and lowering problem during the rotation of the turntable 42 will not affect the contact between the extrusion part 420 and the pressure block 43. At the same time, since the turntable 42 is threadedly connected to the outer cylinder 40, the turntable 42 can rotate to any angle and then stop, so that the four sets of pressure blocks 43 can clamp lens groups 5 with different radii.

[0038] Accordingly, the first rubber seat 20 can be detachably connected to the threaded post at the lower end, and the second rubber seat 33 can be detachably connected to the movable sleeve 32 at the upper end, so that the rubber seat matching the contour can be replaced according to the lens group 5 of different diameter specifications; and the thickness change caused by the lens group 5 of different diameter specifications can be adjusted by turning the threaded post inside the adjustment component 2 so that the lens group 5 is aligned with the height of the four pressure blocks 43.

[0039] Reference Figure 1 The turntable 42 is provided with several force-applying parts 421 with friction textures, which are used to apply external force to drive the turntable 42 to rotate.

[0040] Furthermore, the pressing part 420 on the turntable 42 can apply force to the four sets of pressing blocks 43 to make them gather and clamp the lens group 5, and the resetting of the four sets of pressing blocks 43 as they expand outward in the radial direction can be done by the resetting assembly; therefore, it is easy to understand that a resetting assembly is provided between the pressing block 43 and the guide 410 and / or between the pressing block 43 and the turntable 42 to drive the pressing block 43 to move centrifugally.

[0041] When the reset component is located between the pressure block 43 and the guide member 410, the reset component can be a spring or a metal spring sheet, which causes the pressure block 43 to spring out radially; when the reset component is located between the pressure block 43 and the turntable 42, the reset component can be a magnetic component located between the contact surface of the extrusion part 420 and the pressure block 43, which uses magnetic attraction to keep the pressure block 43 always attached to the extrusion part 420.

[0042] The working principle of this optical lens bonding fixture is as follows:

[0043] First, place the lower lens on the first rubber seat 20. Apply optical adhesive to the top of the lens and then place the upper lens. Rotate the upper lens relative to each other to distribute the optical adhesive evenly between the two sets of lenses. Then, turn the turntable 42 to make the four sets of pressure blocks 43 gather inward and lock the lens group 5. Finally, press the extrusion assembly 3 downward to press the lens group 5.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An optical lens cementing jig, characterized in that, include: A base (1) having an upper and lower opposing placement assembly (2) and a pressing assembly (3) inside, the placement assembly (2) supporting the glued lens assembly (5), and the pressing assembly (3) pressing the lens assembly (5) downwards; characterized in that it further includes a locking assembly (4), the locking assembly (4) including a plurality of pressing blocks (43) arranged around the placement assembly (2) and flush with the height of the lens assembly (5), and a turntable (42) disposed on the outer periphery of the plurality of pressing blocks (43); the plurality of pressing blocks (43) The turntable (42) is arranged in the seat (1) with the placement component (2) as the center and can move horizontally in the radial direction. The inner side of the turntable (42) has a plurality of spiral extrusion parts (420) with the placement component (2) as the center. The plurality of extrusion parts (420) abut against the plurality of pressure blocks (43) in a one-to-one correspondence. The lower end of the turntable (42) is threadedly connected to the seat (1) so that the rotation of the turntable (42) drives the plurality of pressure blocks (43) to move centripetally and clamp the lens group (5).

2. The optical lens bonding fixture according to claim 1, characterized in that, The top of the placement component (2) is a set of first rubber seats (20) that are adapted to the bottom contour of the lens group (5), and the lower end of the placement component (2) is inserted into the seat body (1) by means of threaded connection so that the height of the placement component (2) is adjustable; a set of light-transmitting holes (21) are provided vertically through the placement component (2).

3. The optical lens bonding fixture according to claim 2, characterized in that, The upper surface of the first rubber seat (20) is a concave arc surface that matches the bottom contour of the lens assembly (5).

4. The optical lens bonding fixture according to claim 2, characterized in that, A marker point is set at the center of the bottom of the light-transmitting hole (21) to detect whether it is aligned with the optical axis in the lens group (5).

5. The optical lens bonding fixture according to claim 1, characterized in that, The seat (1) is provided with an inner cylinder (41) and an outer cylinder (40) surrounding the placement component (2), wherein the plurality of pressure blocks (43) are slidably disposed on the inner cylinder (41), and the lower end of the turntable (42) is threadedly connected to the outer cylinder (40).

6. The optical lens bonding fixture according to claim 5, characterized in that, The upper end of the inner cylinder (41) is provided with a plurality of guide members (410) corresponding one-to-one with the plurality of pressure blocks (43). The pressure blocks (43) are slidably inserted into the guide members (410) to guide the centripetal / centrifugal motion of the pressure blocks (43).

7. The optical lens bonding fixture according to claim 1 or 5, characterized in that, The turntable (42) is provided with several force-applying parts (421) with friction texture, which are used to apply external force to drive the turntable (42) to rotate.

8. The optical lens bonding fixture according to claim 1, characterized in that, The extrusion assembly (3) is supported above the lens group (5) by a bracket (30) installed in the base (1); the extrusion assembly (3) includes a cylinder (31) with an output shaft (310) pointing downward, and the output shaft (310) of the cylinder (31) is provided with a second rubber seat (33) for pressing down the lens group (5), and the lower end face of the second rubber seat (33) is adapted to the top contour of the lens group (5).

9. The optical lens bonding fixture according to claim 6, characterized in that, A reset assembly is provided between the pressure block (43) and the guide member (410) and / or between the pressure block (43) and the turntable (42) to drive the pressure block (43) to move centrifugally.

10. The optical lens bonding fixture according to claim 8, characterized in that, The output shaft (310) of the cylinder (31) is provided with a set of movable sleeves (32). The upper end of the second rubber seat (33) is slidably inserted into the movable sleeve (32), and the movable sleeve (32) is provided with a spring that abuts against the second rubber seat (33) to drive the second rubber seat (33) to slide downward.

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