Small lens automatic edge scraping machine

Abstract

The utility model discloses a small -size lens automatic edge scraping machine, including mounting seat and lens, the mounting seat is fixedly installed with the locating frame, be equipped with the locating mechanism for the lens limit in the locating frame, rotatingly installed with the rotating support in the mounting seat, the sliding bracket is slidably installed on the rotating support, two groups of symmetric distribution's scraper are rotatingly installed on the sliding bracket, the locating mechanism includes four groups about the preliminary locating block of symmetrical distribution of lens, through the rotating support drive two groups of symmetric distribution's scraper synchronous rotation, can simultaneously to the two edge surfaces of lens and carry out the scraping processing, complete double -sided operation in one clamping, effectively avoided the positioning reference change because of secondary clamping, improved the concentricity and symmetry of lens positive and negative edge profile, guaranteed the imaging quality and optical axis consistency of lens.

Description

Technical Field

[0001] This utility model relates to the field of lens edge scraping technology, and in particular to a small automatic lens edge scraping machine. Background Technology

[0002] In the current era of rapid development in precision optics, small lenses serve as the "eyes" in imaging modules, consumer electronics, medical devices, and autonomous driving sensors. Their manufacturing precision directly determines the performance boundaries of the end products. The edge contour of the lens is no longer a simple assembly benchmark, but a key link in optical path control and structural stability. Its geometric accuracy and symmetry play a crucial role in suppressing aberrations and ensuring optical axis consistency. Traditional edge processing methods are facing severe challenges from the requirements of modern high-volume production and extreme precision. Automation, intelligence, and extreme efficiency have become irreversible development trends in this field. Against this backdrop, the innovation of edge scraping technology is no longer limited to the improvement of a single process, but runs through the entire process of enhancing the core competitiveness of the optical manufacturing industry chain.

[0003] In the manufacturing process of optical lenses, edge scraping is a critical step. Its purpose is to precisely trim the outer circular contour of the lens to meet the dimensional requirements during assembly and the positioning accuracy of the optical center. Currently, known small lens scraping equipment generally adopts a single-sided sequential processing mode. That is, first, a specific clamping mechanism is used to fix the lens, and a single scraper device completes the scraping of one side of its edge. Then, the lens needs to be removed from the fixture, flipped manually or by an auxiliary mechanism, and repositioned and clamped before the equipment can be started to perform the same scraping operation on the other side of the edge. Since the lens needs to be clamped and positioned twice independently, secondary positioning errors are inevitably introduced. As a result, it is difficult to ensure a high degree of concentricity and symmetry of the scraped contours on both sides of the lens. This lack of precision will directly affect the imaging quality of the lens and the consistency of the optical axis in subsequent assembly, becoming a bottleneck to improving product quality. Moreover, this process involves two repeated clamping, alignment, and processing cycles, which significantly prolongs the entire process time, resulting in low overall processing efficiency and restricting the improvement of production capacity.

[0004] Therefore, it is necessary to provide a small-sized automatic lens edge scraping machine to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a small automatic lens edge scraping machine that can realize synchronous double-sided edge scraping of lenses, effectively improving work efficiency.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A small automatic lens edge scraping machine includes a mounting base and a lens. A positioning frame is fixedly mounted on the mounting base, and the lens is located at the center of the positioning frame. The positioning frame is provided with a positioning mechanism for limiting the lens. A rotating frame is rotatably mounted in the mounting base, and a slide is slidably mounted on the rotating frame. Two sets of symmetrically distributed scrapers are rotatably mounted on the slide, and the two sets of scrapers are respectively set to correspond to the edge of the lens.

[0008] The positioning mechanism includes four sets of initial positioning blocks symmetrically distributed about the lens. The positioning mechanism also includes two sets of first adjusting rods and two sets of second adjusting rods symmetrically distributed and slidably installed in the positioning frame.

[0009] Preferably, the two sets of first adjusting rods and the two sets of second adjusting rods are vertically distributed, and the four sets of initial positioning blocks are respectively distributed at the junctions of the two sets of first adjusting rods and the two sets of second adjusting rods. The initial positioning blocks are slidably connected to one set of first adjusting rods and one set of second adjusting rods.

[0010] Preferably, two sets of vertically distributed bidirectional screws are rotatably installed inside the positioning frame. The two sets of screws form threaded pairs with the two sets of first adjusting rods and the two sets of second adjusting rods, respectively, so as to drive the two adjusting rods in the same set to move towards or away from each other.

[0011] Preferably, two sets of movable frames are slidably installed inside the positioning frame. The two sets of movable frames are distributed on both sides of the lens. Multiple sets of annularly distributed vacuum suction cups are slidably installed on each set of movable frames. A sliding rod is fixedly installed inside the movable frame. The vacuum suction cups are slidably sleeved with the sliding rods. Two sets of symmetrically distributed springs are sleeved on the sliding rods. The two ends of the two sets of springs are fixedly connected to the vacuum suction cups and the movable frames, respectively.

[0012] Preferably, a bidirectional threaded rod is rotatably installed inside the positioning frame, and the two ends of the bidirectional threaded rod pass through two sets of movable frames and are threadedly connected to the two sets of movable frames.

[0013] Preferably, a lead screw is rotatably installed inside the rotating frame, the lead screw passes through the slide and is threadedly connected to the slide, a gear ring is sleeved on the rotating frame, a drive wheel is rotatably installed inside the mounting base, the drive wheel is meshed with the gear ring, both sets of scrapers are rotatably connected to the slide through mounting shafts, gears are sleeved on both sets of mounting shafts, two sets of racks are slidably installed inside the slide and meshed with the two sets of gears, a cylinder is fixedly installed inside the slide, and both sets of racks are fixedly connected to the output end of the cylinder piston rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) This utility model drives two sets of symmetrically distributed scrapers to rotate synchronously through the rotating frame, which can simultaneously scrape the two edge surfaces of the lens, complete the double-sided operation in one clamping, effectively avoid the change of positioning reference caused by the second clamping, improve the concentricity and symmetry of the front and back scraping contours of the lens, and ensure the imaging quality and optical axis consistency of the lens.

[0016] (2) This utility model uses four sets of initial positioning blocks in conjunction with the independently adjustable first and second adjustment rods, which can accurately center the lenses of different sizes. Then, stable clamping is achieved through the upper and lower moving frame and vacuum suction cup. While adapting to lenses of various specifications, it ensures positioning accuracy and processing stability, thereby improving the accuracy of edge scraping and overall production efficiency. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the small automatic lens edge scraping machine provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the mounting base of this utility model;

[0019] Figure 3 This is a schematic diagram showing the structural separation of the mounting base and positioning frame of this utility model;

[0020] Figure 4 This is a schematic diagram showing the separation of the carriage and scraper in this utility model;

[0021] Figure 5 This is a schematic diagram of the positioning mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram showing the separation of the movable frame and vacuum suction cup of this utility model.

[0023] The corresponding names of the reference numerals in the attached drawings are as follows: 1. Mounting base; 2. Lens; 3. Positioning frame; 4. Rotating frame; 5. Gear ring; 6. Drive wheel; 7. Slide; 8. Lead screw; 9. Scraper; 10. Mounting shaft; 11. Gear; 12. Rack; 13. Cylinder; 14. Positioning mechanism; 1401. Initial positioning block; 1402. First adjusting rod; 1403. Second adjusting rod; 1404. Bidirectional screw; 1405. Moving frame; 1406. Bidirectional threaded rod; 1407. Vacuum suction cup; 1408. Slide rod; 1409. Spring. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0025] First embodiment:

[0026] like Figure 1-6 As shown, this utility model provides a small automatic lens edge scraping machine, including a mounting base 1 and a lens 2. A positioning frame 3 is fixedly mounted on the mounting base 1, and the lens 2 is located at the center of the positioning frame 3. The positioning frame 3 is provided with a positioning mechanism 14 for limiting the lens 2. A rotating frame 4 is rotatably mounted in the mounting base 1, and a slide 7 is slidably mounted on the rotating frame 4. Two sets of symmetrically distributed scrapers 9 are rotatably mounted on the slide 7, and the two sets of scrapers 9 are respectively set corresponding to the edge of the lens 2. The positioning mechanism 14 includes four sets of initial positioning blocks 1401 symmetrically distributed about the lens 2. The positioning mechanism 14 also includes two sets of symmetrically distributed first adjusting rods 1402 and two sets of symmetrically distributed second adjusting rods 1403 slidably mounted in the positioning frame 3.

[0027] In use, the lens 2 is first placed in the center area of ​​the positioning frame 3. By driving the positioning mechanism 14, the four sets of initial positioning blocks 1401 move synchronously towards the center, contacting and correcting the lens 2 from four directions to complete its initial center positioning. Then, the drive device is started to rotate the rotating frame 4 and control the slide 7 to move along the rotating frame 4 towards the lens 2, driving the two sets of scrapers 9 on it to synchronously approach the edge of the lens 2, so that the two edges of the lens 2 are scraped at the same time in one clamping.

[0028] Second embodiment:

[0029] like Figure 5 , Figure 6 As shown, two sets of first adjusting rods 1402 and two sets of second adjusting rods 1403 are vertically distributed. Four sets of initial positioning blocks 1401 are respectively distributed at the junctions of the two sets of first adjusting rods 1402 and the two sets of second adjusting rods 1403. Each initial positioning block 1401 is slidably connected to one set of first adjusting rods 1402 and one set of second adjusting rods 1403. Two sets of vertically distributed bidirectional screws 1404 are rotatably installed inside the positioning frame 3. The two sets of screws form threaded pairs with the two sets of first adjusting rods 1402 and the two sets of second adjusting rods 1403, respectively, to drive the two adjusting rods in the same group to move towards or away from each other. Two sets of movable frames 140 are slidably installed inside the positioning frame 3. 5. Two sets of movable frames 1405 are distributed on both sides of the lens 2. Multiple sets of annularly distributed vacuum suction cups 1407 are slidably installed on each set of movable frames 1405. A slide rod 1408 is fixedly installed inside the movable frame 1405. The vacuum suction cups 1407 are slidably sleeved with the slide rods 1408. Two sets of symmetrically distributed springs 1409 are sleeved on the slide rods 1408. The two ends of the two sets of springs 1409 are fixedly connected to the vacuum suction cups 1407 and the movable frames 1405, respectively. A bidirectional threaded rod 1406 is rotatably installed inside the positioning frame 3. The two ends of the bidirectional threaded rod 1406 pass through the two sets of movable frames 1405 and are threadedly connected to the two sets of movable frames 1405.

[0030] In use, rotating the two sets of vertically arranged bidirectional screws 1404 drives the two sets of first adjusting rods 1402 and two sets of second adjusting rods 1403 to move towards or away from each other in the horizontal plane, thereby causing the four sets of initial positioning blocks 1401 to move synchronously closer to or away from the center of the lens 2, achieving precise centering and positioning of lenses 2 of different sizes; after the initial positioning is completed, rotating the bidirectional screw rod 1406 drives the upper and lower sets of moving frames 1405 to move towards each other until they are close to the surface of the lens 2. The multiple vacuum suction cups 1407 on the moving frame 1405 adaptively press and adsorb the upper and lower surfaces of the lens 2 under the action of the spring 1409, forming a stable clamp. At this time, the initial positioning blocks 1401 can retract to make room for processing. This clamping structure can effectively adapt to lenses 2 of different thicknesses.

[0031] Third embodiment:

[0032] like Figure 1-6 As shown, a lead screw 8 is rotatably installed inside the rotating frame 4. The lead screw 8 passes through the slide 7 and is threadedly connected to the slide 7. A gear ring 5 is sleeved on the rotating frame 4. A drive wheel 6 is rotatably installed inside the mounting base 1. The drive wheel 6 is meshed with the gear ring 5. Both sets of scrapers 9 are rotatably connected to the slide 7 through mounting shafts 10. Gears 11 are sleeved on both sets of mounting shafts 10. Two sets of racks 12 are slidably installed inside the slide 7 and mesh with the two sets of gears 11. A cylinder 13 is fixedly installed inside the slide 7. Both sets of racks 12 are fixedly connected to the output end of the piston rod of the cylinder 13.

[0033] In use, the drive wheel 6 rotates and drives the entire rotating frame 4 to rotate through meshing with the gear ring 5; at the same time, the lead screw 8 inside the rotating frame 4 rotates, driving the slide 7 to feed precisely along the radial direction of the lens 2; the cylinder 13 on the slide 7 actuates, pushing the two sets of racks 12 to move synchronously in a straight line, and the racks 12 drive the gears 11 that mesh with them to rotate, thereby controlling the two sets of scrapers 9 to open or close synchronously, so as to accurately fit the lenses 2 of different diameters and apply a stable scraping force; finally, under the combined action of the rotational motion of the rotating frame 4 and the radial feed motion of the slide 7, the two scrapers 9 can synchronously and accurately complete the scraping operation on both edges of the lens 2.

[0034] Working principle: During operation, the lens 2 is first placed in the center of the positioning frame 3. By rotating the two sets of vertically distributed bidirectional screws 1404, the first adjusting rod 1402 and the second adjusting rod 1403 are driven to move towards each other, causing the four sets of initial positioning blocks 1401 to move towards the center simultaneously, thus performing preliminary center positioning of the lens 2. Subsequently, the bidirectional threaded rod 1406 inside the positioning frame 3 is rotated, causing the upper and lower moving frames 1405 to move towards each other until they are close to the upper and lower surfaces of the lens 2. The vacuum suction cup 1407 on the moving frame 1405 adaptively presses against the surface of the lens 2 under the action of the spring 1409 and initiates vacuum adsorption, thereby achieving stable clamping without relying on specific dimensions. At this time, the initial positioning blocks 1401... 01. Retract to make room for processing, start the drive motor, and drive the entire rotating frame 4 to rotate through the meshing of the drive wheel 6 and the gear ring 5. At the same time, the lead screw 8 inside the rotating frame 4 rotates to feed the slide 7 radially along the lens 2. The cylinder 13 on the slide 7 pushes the two sets of racks 12, so that the two gears 11 meshing with the racks 12 drive the two scrapers 9 to open synchronously until they contact the edge of the lens 2. Under the combined motion of the rotation of the rotating frame 4 and the feed of the slide 7, the two symmetrically distributed scrapers 9 can simultaneously scrape the two edges of the lens 2, completing the double-sided scraping operation in one go. The rotation of the rotating frame 4 can be reversed after one revolution to avoid affecting the winding of the motor and cylinder 13 connecting wires used to drive the bidirectional threaded rod 1406.

[0035] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. A small automatic lens edge-scraping machine, characterized in that, Includes a mounting base (1) and a lens (2). A positioning frame (3) is fixedly mounted on the mounting base (1). The lens (2) is located at the center of the positioning frame (3). A positioning mechanism (14) for limiting the lens (2) is provided inside the positioning frame (3). A rotating frame (4) is rotatably mounted inside the mounting base (1). A slide (7) is slidably mounted on the rotating frame (4). Two sets of symmetrically distributed scrapers (9) are rotatably mounted on the slide (7). The two sets of scrapers (9) are respectively set to correspond to the edge of the lens (2). The positioning mechanism (14) includes four sets of initial positioning blocks (1401) symmetrically distributed about the lens (2). The positioning mechanism (14) also includes two sets of first adjusting rods (1402) and two sets of second adjusting rods (1403) symmetrically distributed and slidably installed in the positioning frame (3).

2. The small automatic lens edge-scraping machine according to claim 1, characterized in that, The two sets of first adjusting rods (1402) and the two sets of second adjusting rods (1403) are vertically distributed. The four sets of initial positioning blocks (1401) are respectively distributed at the junctions of the two sets of first adjusting rods (1402) and the two sets of second adjusting rods (1403). The initial positioning blocks (1401) are slidably connected to the first set of first adjusting rods (1402) and the second set of second adjusting rods (1403).

3. The small automatic lens edge-scraping machine according to claim 1, characterized in that, The positioning frame (3) is rotatably equipped with two sets of vertically distributed bidirectional screws (1404). The two sets of screws form threaded pairs with the two sets of first adjusting rods (1402) and the two sets of second adjusting rods (1403) respectively, so as to drive the two adjusting rods in the same set to move towards each other or away from each other.

4. A small automatic lens edge-scraping machine according to claim 1, characterized in that, Two sets of movable frames (1405) are slidably installed inside the positioning frame (3). The two sets of movable frames (1405) are distributed on both sides of the lens (2). Multiple sets of circularly distributed vacuum suction cups (1407) are slidably installed on each set of movable frames (1405). A slide rod (1408) is fixedly installed inside the movable frame (1405). The vacuum suction cup (1407) is slidably sleeved with the slide rod (1408). Two sets of symmetrically distributed springs (1409) are sleeved on the slide rod (1408). The two ends of the two sets of springs (1409) are fixedly connected to the vacuum suction cup (1407) and the movable frame (1405) respectively.

5. A small automatic lens edge-scraping machine according to claim 1, characterized in that, The positioning frame (3) is rotatably installed with a bidirectional threaded rod (1406). The two ends of the bidirectional threaded rod (1406) pass through two sets of movable frames (1405) respectively and are threadedly connected to the two sets of movable frames (1405).

6. A small automatic lens edge-scraping machine according to claim 1, characterized in that, A lead screw (8) is rotatably installed inside the rotating frame (4). The lead screw (8) passes through the slide (7) and is threadedly connected to the slide (7). A gear ring (5) is sleeved on the rotating frame (4). A drive wheel (6) is rotatably installed inside the mounting base (1). The drive wheel (6) is meshed with the gear ring (5). Both sets of scrapers (9) are rotatably connected to the slide (7) through mounting shafts (10). Gears (11) are sleeved on both sets of mounting shafts (10). Two sets of racks (12) are slidably installed inside the slide (7) and meshed with the two sets of gears (11). A cylinder (13) is fixedly installed inside the slide (7). Both sets of racks (12) are fixedly connected to the output end of the piston rod of the cylinder (13).

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