Centering and positioning device for optical lens

Abstract

The utility model relates to the technical field of optical lens processing, in particular to a centering and positioning device for an optical lens. The centering and positioning device for the optical lens comprises a workbench, a centering mechanism, a three-jaw chuck, a centering tool, a vertical sliding rail, a vertical sliding block and the like, the centering mechanism is fixedly arranged on the front side of the workbench, the three-jaw chuck is fixedly connected to the upper end of the centering mechanism, the centering tool is placed at the circle center of the three-jaw chuck, and the vertical sliding block is arranged on the vertical sliding rail. A vertical sliding rail is fixedly arranged on the rear side of the workbench, and a vertical sliding block is arranged on the vertical sliding rail in a sliding mode. According to the utility model, the optical lens is clamped and limited through the three-jaw chuck, and the overlapping position of the cross image and the optical cross curve of the optical lens is adjusted by rotating the first worm and the second worm, so that the effect of centering the optical lens is achieved.

Description

Technical Field

[0001] This utility model relates to the field of optical lens processing technology, and in particular to an alignment and positioning device for optical lens. Background Technology

[0002] Optical lenses are lenses made using optical glass. Optical glass is a type of glass with specific requirements for optical properties such as refractive index, dispersion, transmittance, spectral transmittance, and light absorption. It is a type of glass with uniform optical properties that can change the direction of light propagation and alter the relative spectral distribution of ultraviolet, visible, or infrared light.

[0003] Optical lenses need to be aligned to ensure that light can pass through accurately, thereby achieving clear imaging and the desired visual effect. Alignment can minimize aberrations such as coma and astigmatism, ensuring image quality. In addition, if the lenses in the optical system are not aligned, light will deviate from the designed path, resulting in light energy loss and image distortion.

[0004] Therefore, it is necessary to design an alignment and positioning device for optical lens elements. Utility Model Content

[0005] To overcome the drawbacks of optical lens misalignment causing light to deviate from the designed path, resulting in light energy loss and image distortion, the technical problem to be solved is to provide an alignment and positioning device for optical lens elements.

[0006] The technical solution of this utility model is as follows: an optical lens alignment and positioning device, comprising a worktable, an alignment mechanism, a three-jaw chuck, an alignment tool, a vertical slide rail, a vertical slider, a camera, and a display. The alignment mechanism is fixedly mounted on the front side of the worktable. The alignment mechanism includes a base plate, a limiting ring, support blocks, a first worm gear, a first slider, a moving rod, a second slider, a moving frame, a second worm gear, a clamping plate, an upper gear ring, and a lower gear ring. A limiting ring is fixedly mounted on the base plate. Two support blocks are symmetrically fixed on both the front and rear sides of the base plate. A first worm gear is rotatably mounted on the two front support blocks. The right side of the first worm gear rotatably passes outside the limiting ring. A first slider is fixedly mounted on each of the front and rear support blocks. The two first sliders are slidably mounted on the side closest to each other. There are two movable rods, and a second slider is fixed on each of the left and right sides between the front and rear ends of the two movable rods. A movable frame is slidably provided between the two second sliders. A rack is provided on the left side of the movable frame, and a second worm gear is rotatably passed through the right side of the movable frame. A clamping plate is fixed between the two movable rods. The upper half of the clamping plate is rotatably provided with an upper toothed ring bearing, and the lower half of the clamping plate is rotatably provided with a lower toothed ring bearing. The upper toothed ring meshes with the second worm gear and the rack on the movable frame, and the lower toothed ring meshes with the first worm gear. A three-jaw chuck is fixedly connected to the upper end of the centering mechanism. A centering tool is placed at the center of the three-jaw chuck. A vertical slide rail is fixedly provided on the rear side of the worktable. A vertical slider is slidably provided on the vertical slide rail. A camera is fixedly passed through the front side of the vertical slider, and a monitor is fixedly installed on the left side of the vertical slide rail.

[0007] As a preferred technical solution of this utility model, the centering mechanism is circular in shape.

[0008] In a preferred embodiment of this invention, the upper surfaces of the moving rod and the moving frame are both higher than the first slider and the second slider.

[0009] As a preferred technical solution of this utility model, the upper toothed ring and the lower toothed ring will not affect each other when they rotate independently.

[0010] As a preferred technical solution of this utility model, it also includes an optical crosshair, with the optical crosshair fixedly provided at the center of the base plate.

[0011] As a preferred technical solution of this utility model, the three-jaw chuck includes jaws, clamping elements and a drive disk. The drive disk has three jaws evenly driven around the center, and the jaws are rotatably equipped with clamping elements.

[0012] As a preferred technical solution of this utility model, the lower end face of the drive disk is fixedly connected to the upper end face of the moving frame.

[0013] Beneficial effects: This utility model uses a three-jaw chuck to clamp and limit the optical lens, and adjusts the overlap position of the cross image of the optical lens with the optical crosshairs by rotating the first and second worm gears, thereby achieving the effect of centering the optical lens. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the base plate, limiting ring, and clamping component of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the first worm gear, the moving frame, and the second worm gear of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the clamping plate, upper toothed ring, and lower toothed ring of this utility model.

[0018] Figure 5 This is a schematic diagram of the planar structure of the movable frame, the second worm gear, and the optical crosshairs of this utility model.

[0019] Figure 6 This is a schematic diagram of the planar structure of the first slider, the moving frame, and the drive disk of this utility model.

[0020] The diagram is labeled as follows: 1-Workbench, 2-Centering mechanism, 201-Base plate, 202-Limiting ring, 203-Support block, 204-First worm gear, 205-First slider, 206-Moving rod, 207-Second slider, 208-Moving frame, 209-Second worm gear, 210-Clamping plate, 211-Upper toothed ring, 212-Lower toothed ring, 213-Optical crosshair, 3-Three-jaw chuck, 301-Jaw, 302-Clamping component, 303-Drive disk, 304-Centering tool, 4-Vertical slide rail, 5-Vertical slider, 6-Camera, 7-Display. Detailed Implementation

[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0022] Example: An alignment and positioning device for optical lens elements, such as... Figures 1-6As shown, the system includes a worktable 1, a centering mechanism 2, a three-jaw chuck 3, a centering tool 304, a vertical slide rail 4, a vertical slider 5, a camera 6, and a display 7. The centering mechanism 2 is fixedly mounted on the front side of the worktable 1. The centering mechanism 2 includes a base plate 201, a limiting ring 202, a support block 203, a first worm gear 204, a first slider 205, a moving rod 206, a second slider 207, a moving frame 208, a second worm gear 209, a clamping plate 210, an upper gear ring 211, and a lower gear ring 212. The limiting ring 202 is fixedly mounted on the base plate 201 by screws. The base plate 201 has symmetrical designs on both its front and rear sides. Two support blocks 203 are fixedly provided. A first worm gear 204 is rotatably mounted on the two front support blocks 203. The right side of the first worm gear 204 rotatably passes through the outside of the limiting ring 202. A first slider 205 is fixedly provided on each of the front and rear support blocks 203. A moving rod 206 is slidably provided on the side of the two first sliders 205 that are close to each other. A second slider 207 is fixedly provided on the left and right sides between the front and rear ends of the two moving rods 206. A moving frame 208 is slidably provided between the two second sliders 207. The upper surfaces of the moving rods 206 and the moving frame 208 are higher than the first sliders 205. 5. A rack is provided on the left side of the second slider 207 and the moving frame 208. A second worm gear 209 is rotatably mounted on the right side of the moving frame 208. A clamping plate 210 is fixedly installed between the two moving rods 206 by screws. The upper half of the clamping plate 210 is rotatably mounted with an upper toothed ring 211 and the lower half is rotatably mounted with a lower toothed ring 212. The upper toothed ring 211 meshes with the second worm gear 209 and the rack on the moving frame 208, and the lower toothed ring 212 meshes with the first worm gear 204. The upper toothed ring 211 and the lower toothed ring 212 do not affect each other when they rotate independently. Three... The three-jaw chuck 3 includes jaws 301, clamping members 302, and a drive disk 303. The drive disk 303 has three jaws 301 evenly driven around the center. The clamping members 302 are rotatably mounted on the jaws 301. The lower end face of the drive disk 303 is fixedly connected to the upper end face of the moving frame 208. A centering tool 304 is placed at the center of the three-jaw chuck 3. A vertical slide rail 4 is fixedly mounted on the rear side of the worktable 1. A vertical slider 5 is slidably mounted on the vertical slide rail 4. A camera 6 is fixedly mounted on the front side of the vertical slider 5. A display 7 is fixedly mounted on the left side of the vertical slide rail 4 by screws. The centering mechanism 2 is circular in shape.

[0023] like Figure 4 and Figure 5 As shown, it also includes an optical crosshair 213, which is fixedly provided at the center of the base plate 201.

[0024] This device is used when the manufactured optical lenses reach the centering process. First, the centering fixture 304 is placed at the center of the three-jaw chuck 3. The optical lens to be centered is placed on the centering fixture 304. Then, the drive disk 303 is rotated, which drives the jaws 301 to move towards the center of the drive disk 303. When the jaws 301 move a certain distance, they clamp the centering fixture 304. The clamping parts 302 on the jaws 301 clamp and limit the optical lens. At this time, the distance between the camera 6 and the optical lens is adjusted by the vertical slider 5 so that a clear crosshair image of the optical lens is displayed on the monitor 7. The crosshair image of the optical lens is observed on the monitor 7 to see if it coincides with the optical crosshair 213 on the base plate 201. If they coincide, the optical lens is centered. The drive disk 303 is then rotated and the optical lens is removed. If they do not coincide, the first worm 204 and the second worm 209 need to be rotated according to the offset angle. At the same time, the first worm gear 204 drives the lower gear ring 212 to rotate. During the rotation of the lower gear ring 212, the lower gear ring 212 drives the moving rod 206 to move slightly on the first slider 205 through the clamping plate 210, together with the upper second slider 207, the moving frame 208 and the three-jaw chuck 3. When the moving frame 208 moves, the second worm gear 209 will move within the notch on the upper side of the limiting ring 202, thereby adjusting the left and right movement of the optical lens. When the second worm gear 209 is rotated, the second worm gear 204... 09 drives the upper gear ring 211 to rotate. Since the rack on the left side of the moving frame 208 meshes with the upper gear ring 211, when the upper gear ring 211 rotates, it causes the moving frame 208 to drive the upper three-jaw chuck 3 to move on the second slider 207, thereby adjusting the movement of the optical lens in the front-back direction until the cross image of the optical lens coincides with the optical cross line 213. Then, the part where the center of the optical lens coincides with the center of the optical cross line 213 is marked, and then the drive disk 303 is rotated to remove the optical lens.

[0025] 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 principle 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. A centering and positioning device for an optical lens element, characterized in that: It includes a worktable (1), a centering mechanism (2), a three-jaw chuck (3), a centering tool (304), a vertical slide rail (4), a vertical slider (5), a camera (6), and a monitor (7). The centering mechanism (2) is fixedly installed on the front side of the worktable (1). The centering mechanism (2) includes a base plate (201), a limiting ring (202), a support block (203), a first worm gear (204), a first slider (205), a moving rod (206), a second slider (207), a moving frame (208), a second worm gear (209), and a clamping plate (210). The base plate (201) has an upper gear ring (211) and a lower gear ring (212). A limiting ring (202) is fixedly provided on the base plate (201). Two support blocks (203) are symmetrically fixed on both the front and rear sides of the base plate (201). A first worm gear (204) is rotatably provided on the two front support blocks (203). The right side of the first worm gear (204) is rotatably inserted outside the limiting ring (202). A first slider (205) is fixedly provided on each of the support blocks (203) on both the front and rear sides. A moving rod is slidably provided on the side of the two first sliders (205) that are close to each other. 206), a second slider (207) is fixed on both the left and right sides between the front and rear ends of the two moving rods (206). A moving frame (208) is slidably provided between the two second sliders (207). A rack is provided on the left side of the moving frame (208). A second worm gear (209) is rotatably provided on the right side of the moving frame (208). A clamping plate (210) is fixedly provided between the two moving rods (206). An upper toothed ring (211) is rotatably provided on the upper half of the clamping plate (210) and a lower toothed ring (211) is rotatably provided on the lower half of the clamping plate (210). 212), the upper gear ring (211) meshes with the rack on the second worm (209) and the moving frame (208), the lower gear ring (212) meshes with the first worm (204), the centering mechanism (2) is fixedly connected to the upper end of the three-jaw chuck (3), the centering tool (304) is placed at the center of the three-jaw chuck (3), the worktable (1) is fixedly provided with a vertical slide rail (4), the vertical slide rail (4) is slidably provided with a vertical slider (5), the front side of the vertical slider (5) is fixedly provided with a camera (6), and the left side of the vertical slide rail (4) is fixedly provided with a display (7).

2. The centering and positioning device for an optical lens as described in claim 1, characterized in that: The centering mechanism (2) is circular in shape.

3. The alignment and positioning device for an optical lens as described in claim 2, characterized in that: The upper surfaces of the moving rod (206) and the moving frame (208) are both higher than the first slider (205) and the second slider (207).

4. The alignment and positioning device for an optical lens as described in claim 3, characterized in that: The upper toothed ring (211) and the lower toothed ring (212) do not affect each other when they rotate independently.

5. The alignment and positioning device for an optical lens as described in claim 4, characterized in that: It also includes an optical crosshair (213), and the optical crosshair (213) is fixedly provided at the center of the base plate (201).

6. The alignment and positioning device for an optical lens as described in claim 5, characterized in that: The three-jaw chuck (3) includes jaws (301), clamping members (302) and a drive disk (303). The drive disk (303) is provided with three jaws (301) in a uniform driving manner around the center, and the clamping members (302) are provided in a rotating manner on the jaws (301).

7. The centering and positioning device for an optical lens as described in claim 6, characterized in that: The lower end face of the drive disk (303) is fixedly connected to the upper end face of the movable frame (208).

Images