Milling device and method for optical crystal

Abstract

The invention provides a milling device and method for an optical crystal, and relates to the technical field of milling, the milling device comprises a rack, a positioning mechanism is arranged outside the rack, the positioning mechanism comprises a mounting frame and a connecting plate, the lower surface of the mounting frame is rotatably connected with a rotating ring through a bearing, the rotating ring is fixedly connected with the connecting plate, and the rotating ring is fixedly connected with the connecting plate. The outer surface of the rotating ring is fixedly connected with an incomplete gear ring, the outer surface of the mounting frame is rotationally connected with a plurality of supporting rods through bearings, the positioning cylinders are synchronously combined, only single-wheel opening and closing are achieved in the whole process, and the other positioning wheels are always kept in a clamping state. The section is matched to realize accurate and coaxial crystal positioning, a double-fixing structure avoids positioning looseness, single-wheel gradual opening and closing avoid interference of a milling cutter, does not affect milling operation, ensures continuous clamping of a non-milling area, thoroughly prevents crystal deviation, adapts to positioning requirements of optical crystals with different sizes, does not need manual adjustment in the positioning process, and improves the positioning accuracy. And the stability is high and the adaptability is wide.

Description

Technical Field

[0001] This invention relates to the field of milling technology, and more particularly to a milling apparatus and method for optical crystals. Background Technology

[0002] As a core component of precision optical instruments, the edge processing accuracy of optical crystals directly affects the imaging quality and performance stability of optical systems. Milling deburring is a crucial step in the optical crystal processing flow, requiring high-precision edge finishing while strictly avoiding damage to the optical surface and edge chipping. Existing optical crystal milling devices still suffer from numerous technical shortcomings in practical applications, making it difficult to meet the high-precision processing requirements of multilayered films, soft and brittle sensitive optical crystals. Firstly, positioning stability is poor, easily leading to crystal displacement. Existing devices mostly use single clamping or adsorption positioning methods, making it difficult to balance positioning accuracy and fixation reliability. Some devices using multiple positioning wheels require the entire positioning wheel to be opened during milling to avoid the milling cutter, causing the crystal to lose effective clamping and shift, thus affecting milling accuracy. Furthermore, the positioning mechanism has poor adaptability, making it difficult to accommodate optical crystals of different sizes, requiring frequent manual adjustments, which is cumbersome and lacks stability. Secondly, pre-milling cleaning is insufficient. Incomplete or incomplete cleaning can easily damage the crystal surface. Dust and fine impurities easily adhere to the edges of optical crystals. Most existing devices lack a dedicated pre-cleaning mechanism, or the cleaning mechanism has poor coordination with the milling mechanism. Impurities are easily squeezed by the milling cutter during milling, leading to scratches on the crystal surface and damage to the optical surface. Especially for multilayer films and soft, brittle optical crystals, the presence of impurities can exacerbate milling cutter wear, reduce deburring accuracy, and affect processing quality. Thirdly, poor dust collection results in environmental pollution and affects processing continuity. Crystal debris generated during milling is prone to splashing. Existing dust collection mechanisms are mostly fixed-position dust collectors, making it difficult to achieve precise dust collection by following the movement of the milling cutter. This results in debris not being collected in a timely manner, polluting the working environment and easily re-adhering to the crystal surface, further damaging optical performance. Simultaneously, debris accumulation in the milling area affects milling continuity, requiring frequent shutdowns for cleaning, reducing processing efficiency, and increasing labor costs. Therefore, we propose a milling device and method for optical crystals. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems by providing a milling apparatus and method for optical crystals.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a milling device for optical crystals, comprising a frame, a positioning mechanism provided on the outside of the frame, the positioning mechanism comprising a mounting frame and a connecting plate, a rotating ring rotatably connected to the lower surface of the mounting frame via a bearing, the rotating ring being fixedly connected to the connecting plate, an incomplete toothed ring being fixedly connected to the outer surface of the rotating ring, a plurality of support rods rotatably connected to the outer surface of the mounting frame via a bearing, a first gear being fixedly connected to the outer surface of each of the plurality of support rods, the plurality of first gears meshing with the incomplete toothed ring, a disk being fixedly connected to the outer surface of each of the plurality of support rods, a ring rotatably connected to the outer surface of the disk, a push rod rotatably connected to the outer surface of the ring via a rotating shaft, and a positioning wheel rotatably connected to the outer surface of the push rod.

[0005] Preferably, a support tube is fixedly connected to the upper surface of the frame, a rotating tube is rotatably connected to the outer surface of the support tube via a bearing, a rotating plate is fixedly connected to the outer surface of the rotating tube, a rotating rod is rotatably connected to the outer surface of the rotating plate via a bearing, and the rotating rod is rotatably connected to the connecting plate via a bearing.

[0006] Preferably, the top of the frame is also provided with a dust collection mechanism, which includes a dust collection head. A connecting pipe is fixedly connected to the inner surface of the connecting plate. A dust collection bucket is rotatably connected to the outer surface of the support pipe through a bearing. An air pump is installed on the outer surface of the dust collection bucket. The input end of the air pump is connected to the connecting pipe, the output end of the air pump is connected to the dust collection bucket, and the other end of the connecting pipe is connected to the dust collection head.

[0007] Preferably, the top of the frame is further provided with a cleaning mechanism, which includes a wiping roller. A support plate is fixedly connected to the upper surface of the connecting plate. A cleaning rod is rotatably connected to the inner surface of the support plate via a bearing. The cleaning rod is fixedly connected to the wiping roller. An installation rod is rotatably connected to the outer surface of the connecting plate via a bearing. A first bevel gear is fixedly connected to the upper surface of the installation rod. A second bevel gear is fixedly connected to the outer surface of the cleaning rod. The first bevel gear and the second bevel gear are meshed together.

[0008] Preferably, a second gear is fixedly connected to the outer surface of the rotating rod, and an internal gear ring is fixedly connected to the inner surface of the mounting bracket, the internal gear ring meshing with the second gear.

[0009] Preferably, a vacuum suction cup is rotatably connected to the upper surface of the dust collection bin, and the lower surface of the vacuum suction cup is connected to the support tube.

[0010] Preferably, a positioning rod is rotatably connected to the upper surface of the frame via a bearing, and a third gear is fixedly connected to the outer surface of both the positioning rod and the rotating tube. The two third gears are meshed together. The rotating rod and the mounting rod are connected by a conveyor belt. A motor is installed on the inner surface of the frame, and the output end of the motor is fixedly connected to the positioning rod.

[0011] Preferably, a limiting tube is fixedly connected to the outer surface of the mounting bracket, and the push rod is slidably connected to the limiting tube.

[0012] Preferably, the mounting bracket is fixedly connected to the frame, an electric slide rail is mounted on the outer surface of the frame, a sliding seat is slidably connected to the outer surface of the electric slide rail, and a milling cutter is mounted on the lower surface of the sliding seat.

[0013] Preferably, a milling method for optical crystals includes the following steps: S1: The positioning wheel initially positions the optical crystal around its perimeter, while the vacuum suction cup applies negative pressure to the bottom of the crystal, forming a double fixation.

[0014] S2: The rotating rod rotates by meshing with the internal gear ring through the second gear, and synchronously drives the mounting rod to rotate via the conveyor belt. The bevel gear meshes and drives the wiping roller to rotate, thus cleaning the crystal edge in advance.

[0015] S3: The electric slide rail drives the milling cutter to move and deburr the crystal. The incomplete toothed ring rotates along the milling path with the rotating ring, only meshing with a single first gear on the path, driving the corresponding positioning wheel to retract backward to avoid the milling cutter, while the remaining positioning wheels remain clamped to prevent deviation.

[0016] S4: After the incomplete toothed ring leaves, the corresponding positioning wheel immediately resets and the positioning cylinder merges. At the same time, the dust collection head rotates synchronously with the milling cutter, and the air pump starts to form a negative pressure circuit to adsorb milling debris in real time.

[0017] S5: The milling cutter completes deburring, the electric slide rail with the milling cutter resets, the motor stops, the vacuum suction cup depressurizes, the wiping roller stops rotating, and the entire milling deburring operation is completed.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. This invention proposes a milling device and method for optical crystals. The positioning wheels first precisely position the optical crystal around its perimeter, while a vacuum suction cup uses negative pressure to adhere to the bottom of the crystal, forming a double fixation. During milling, the positioning rod rotates, and through gear meshing, sequentially drives the rotating tube, rotating rod, and connecting plate to rotate. This, in turn, drives the rotating ring and the incomplete gear ring to rotate synchronously. Through the meshing transmission between the gear ring and the gears, and in conjunction with the eccentric disc pushing the push rod, the positioning wheels retract. Only a single positioning wheel along the path retracts to avoid the milling cutter. After retraction, the positioning wheel immediately resets, and the positioning cylinder synchronously closes. Throughout the entire process, only a single wheel opens and closes, while the remaining positioning wheels remain clamped. This combination achieves precise coaxial positioning of the crystal, the double fixation structure prevents loosening, and the sequential opening and closing of the single wheel avoids interference from the milling cutter, ensuring continuous clamping in non-milling areas and completely preventing crystal displacement. It also adapts to the positioning requirements of optical crystals of different sizes, requires no manual adjustment during the positioning process, and exhibits high stability and wide adaptability.

[0019] 2. This invention proposes a milling device and method for optical crystals. The rotating rod rotates synchronously during operation, driving the wiping roller to rotate via a conveyor belt and bevel gear meshing. This pre-cleaning process cleans the crystal edges before deburring with the milling cutter. This pre-cleaning removes floating dust and fine impurities from the crystal edges, preventing impurities from being squeezed and scratching the crystal surface during milling. It is particularly suitable for processing multilayer films, soft and brittle sensitive optical crystals, and prevents damage to the optical surface caused by incomplete cleaning. Simultaneously, the pre-cleaning reduces contact wear between the milling cutter and impurities, extending the milling cutter's service life. It also ensures uniform force during subsequent milling, improving deburring accuracy and laying the foundation for high-quality milling operations.

[0020] 3. This invention proposes a milling device and method for optical crystals. While the milling cutter moves to deburr the area around the crystal, a dust collection head moves synchronously with the cutter. An air pump is activated to form a negative pressure dust collection circuit, which adsorbs and collects milling debris in real time. This coordinated operation intercepts debris at the source of milling, preventing debris from splashing and contaminating the work environment or re-attaching to the crystal surface, achieving clean and environmentally friendly processing. Simultaneously, it prevents debris from contacting the optical surface of the crystal, further protecting its optical performance and ensuring clean, residue-free edges after milling. The stable operation of the negative pressure dust collection also prevents debris accumulation from affecting milling continuity, improving operational smoothness, reducing downtime caused by debris cleaning, indirectly improving processing efficiency, and lowering the labor cost of debris cleaning. Attached Figure Description

[0021] Figure 1 This invention provides a schematic diagram of the external structure of a milling apparatus and method for optical crystals. Figure 2 This is a partial structural schematic diagram of a milling apparatus and method for optical crystals proposed in this invention; Figure 3This is a partial bottom view of the structure of a milling device and method for optical crystals proposed in this invention. Figure 4 A partial structural diagram of the dust collection bin for a milling device and method for optical crystals proposed in this invention; Figure 5 This invention provides a milling apparatus and method for optical crystals. Figure 2 A partial structural diagram at point A in the middle; Figure 6 This invention provides a milling apparatus and method for optical crystals. Figure 3 A schematic diagram of the partial structure at point B in the middle.

[0022] Legend: 1. Frame; 2. Positioning mechanism; 201. Mounting bracket; 202. Connecting plate; 203. Rotating ring; 204. Incomplete gear ring; 205. Support rod; 206. First gear; 207. Disc; 208. Ring; 209. Push rod; 210. Positioning wheel; 3. Dust collection mechanism; 301. Dust collection head; 302. Connecting pipe; 303. Dust collection bin; 304. Air pump; 4. Cleaning mechanism ; 401, wiping roller; 402, support plate; 403, cleaning rod; 404, mounting rod; 405, first bevel gear; 406, second bevel gear; 5, support tube; 6, rotating tube; 7, rotating plate; 8, rotating rod; 9, second gear; 10, internal gear ring; 11, vacuum suction cup; 12, positioning rod; 13, third gear; 14, limiting tube; 15, electric slide rail; 16, sliding seat; 17, milling cutter. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, as Figure 1 - Figure 6As shown, a milling device for optical crystals includes a frame 1. A positioning mechanism 2 is provided on the outside of the frame 1. The positioning mechanism 2 includes a mounting frame 201 and a connecting plate 202. A rotating ring 203 is rotatably connected to the lower surface of the mounting frame 201 via a bearing. The rotating ring 203 is fixedly connected to the connecting plate 202. An incomplete toothed ring 204 is fixedly connected to the outer surface of the rotating ring 203. Multiple support rods 205 are rotatably connected to the outer surface of the mounting frame 201 via a bearing. A first gear 206 is fixedly connected to the outer surface of each of the multiple support rods 205. The multiple first gears 206 and the incomplete toothed ring 204 are meshed together. A disc 207 is fixedly connected to the outer surface of each of the multiple support rods 205. A ring 208 is rotatably connected to the outer surface of the disc 207. A push rod 209 is rotatably connected to the outer surface of the ring 208 via a rotating shaft. A positioning wheel 210 is rotatably connected to the outer surface of the push rod 209.

[0026] The overall effect of Embodiment 1 is as follows: the connecting plate 202 drives the rotating ring 203 to rotate around the mounting frame 201, which in turn drives the incomplete gear ring 204 to rotate synchronously. The incomplete gear ring 204 meshes with the first gear 206 outside the support rod 205, causing the support rod 205 to drive the eccentric disk 207 to rotate. When the eccentric disk 207 rotates, it pushes the ring 208 to pull the push rod 209 to slide directionally along the limiting tube 14. A spring is provided between the push rod 209 and the limiting tube 14. This spring can prevent other push rods 209 from shifting during processing, which would lead to unstable clamping. Then, multiple positioning wheels 210 are evenly attached and clamped along the circumference of the optical crystal to achieve coaxial centering. During the milling and deburring process, the rotating ring 203 drives the incomplete toothed ring 204 to rotate continuously in a circular motion. The incomplete toothed ring 204 rotates according to the milling path and meshes only with one of the first gears 206 on that path, driving the corresponding support rod 205 to rotate. The eccentric disk 207 rotates synchronously, and the traction push rod 209 drives the positioning wheel 210 at that position to retract backward to avoid interference from the milling cutter 17. The positioning wheels 210 on the non-milling path remain clamped to ensure that the crystal does not shift.

[0027] Example 2, as Figure 1 - Figure 6As shown, a support pipe 5 is fixedly connected to the upper surface of the frame 1. A rotating pipe 6 is rotatably connected to the outer surface of the support pipe 5 via a bearing. A rotating plate 7 is fixedly connected to the outer surface of the rotating pipe 6. A rotating rod 8 is rotatably connected to the outer surface of the rotating plate 7 via a bearing. The rotating rod 8 is rotatably connected to the connecting plate 202 via a bearing. A dust collection mechanism 3 is also provided at the top of the frame 1. The dust collection mechanism 3 includes a dust collection head 301. A connecting pipe 302 is fixedly connected to the inner surface of the connecting plate 202. A dust collection bin 303 is rotatably connected to the outer surface of the support pipe 5 via a bearing. An air pump 304 is installed on the outer surface of the dust collection bin 303. The input end of the air pump 304 is connected to the connecting pipe 302, and the output end of the air pump 304 is connected to the dust collection bin 303. The other end of the connecting pipe 302 is connected to the dust collection head 301.

[0028] The effect achieved by the entire embodiment 2 is that the third gear 13 outside the positioning rod 12 meshes with the third gear 13 outside the rotating tube 6, driving the rotating tube 6 to rotate around the support tube 5. The rotating tube 6 drives the rotating rod 8 to rotate through the rotating plate 7. The rotating rod 8 drives the connecting plate 202 to rotate. The second gear 9 outside the rotating rod 8 meshes with the internal gear ring 10 inside the mounting frame 201, realizing the rotation of the rotating rod 8. At the same time, the rotating rod 8 drives the mounting rod 404 to rotate through the conveyor belt. The first bevel gear 405 on the mounting rod 404 meshes with the second bevel gear 406 outside the cleaning rod 403, driving the cleaning rod 403 and the wiping roller 401 to rotate. The edge of the optical crystal is rotated and cleaned before the milling cutter 17 removes burrs.

[0029] Example 3, as Figure 1 - Figure 6As shown, a cleaning mechanism 4 is also provided on the top of the frame 1. The cleaning mechanism 4 includes a wiping roller 401. A support plate 402 is fixedly connected to the upper surface of the connecting plate 202. A cleaning rod 403 is rotatably connected to the inner surface of the support plate 402 via a bearing. The cleaning rod 403 is fixedly connected to the wiping roller 401. An installation rod 404 is rotatably connected to the outer surface of the connecting plate 202 via a bearing. A first bevel gear 405 is fixedly connected to the upper surface of the installation rod 404. A second bevel gear 406 is fixedly connected to the outer surface of the cleaning rod 403. The first bevel gear 405 and the second bevel gear 406 are meshed. A second gear 9 is fixedly connected to the outer surface of the rotating rod 8. An internal gear ring 10 is fixedly connected to the inner surface of the mounting frame 201. The internal gear ring 10 is meshed with the second gear 9. A dust collection bin 303 is also included. A vacuum suction cup 11 is rotatably connected to the upper surface of the frame 1. The lower surface of the vacuum suction cup 11 is connected to the support tube 5. A positioning rod 12 is rotatably connected to the upper surface of the frame 1 via a bearing. A third gear 13 is fixedly connected to the outer surface of both the positioning rod 12 and the rotating tube 6. The two third gears 13 are meshed together. The rotating rod 8 and the mounting rod 404 are connected by a conveyor belt. A motor is installed on the inner surface of the frame 1. The output end of the motor is fixedly connected to the positioning rod 12. A limit tube 14 is fixedly connected to the outer surface of the mounting frame 201. The push rod 209 is slidably connected to the limit tube 14. The mounting frame 201 is fixedly connected to the frame 1. An electric slide rail 15 is installed on the outer surface of the frame 1. A sliding seat 16 is slidably connected to the outer surface of the electric slide rail 15. A milling cutter 17 is installed on the lower surface of the sliding seat 16.

[0030] The overall effect of embodiment 3 is as follows: simultaneously, the vacuum suction cup 11 on the dust collection bin 303 is connected to negative pressure through the support tube 5 to adsorb and fix the non-optical surface at the bottom of the optical crystal, forming a double positioning and fixation. The electric slide rail 15 drives the sliding seat 16 and the milling cutter 17 to move, and performs deburring operation around the optical crystal. The connecting tube 302 on the connecting plate 202 drives the dust collection head 301 to rotate synchronously with the milling cutter 17. The air pump 304 in the dust collection mechanism 3 is started. Its input end is connected to the dust collection head 301 through the connecting tube 302, and its output end is connected to the dust collection bin 303, forming a negative pressure dust collection circuit to adsorb and collect the debris generated by milling and deburring in real time. After the milling cutter 17 completes the deburring operation around the crystal, the electric slide rail 15 drives the milling cutter 17 to reset, the motor stops, the vacuum suction cup 11 is depressurized and released from adsorption, and the wiping roller 401 stops rotating, completing the entire optical crystal milling and deburring operation.

[0031] like Figure 1 - Figure 6 As shown, a milling method for optical crystals includes the following steps: S1: The positioning wheel 210 initially positions the optical crystal around its perimeter, while the vacuum suction cup 11 applies negative pressure to the bottom of the crystal, forming a double fixation.

[0032] S2: The rotating rod 8 rotates by meshing with the internal gear ring 10 through the second gear 9. It synchronously drives the mounting rod 404 to rotate via the conveyor belt. The bevel gear meshes and drives the wiping roller 401 to rotate, thus cleaning the crystal edge in advance.

[0033] S3: The electric slide rail 15 drives the milling cutter 17 to move, deburring the crystal. The incomplete toothed ring 204 rotates along the milling path with the rotating ring 203, only meshing with a single first gear 206 on the path, driving the corresponding positioning wheel 210 to retract backward to avoid the milling cutter 17, while the remaining positioning wheels 210 remain clamped to prevent deviation.

[0034] S4: After the incomplete toothed ring 204 leaves, the corresponding positioning wheel 210 immediately resets and the positioning cylinder merges. At the same time, the dust collection head 301 rotates synchronously with the milling cutter 17, and the air pump 304 starts to form a negative pressure circuit to adsorb milling debris in real time.

[0035] S5: The deburring operation is completed by the milling cutter 17. The electric slide rail 15 resets the milling cutter 17, the motor stops, the vacuum suction cup 11 is depressurized, and the wiping roller 401 stops rotating, thus completing the entire milling and deburring operation.

[0036] Working principle: When the milling device is working, the positioning wheel 210 initially positions the optical crystal precisely around it. The surface of the positioning wheel 210 is equipped with a flexible pad. When the motor starts, the motor output drives the positioning rod 12 to rotate around the bearing of the frame 1. The third gear 13 outside the positioning rod 12 meshes with the third gear 13 outside the rotating tube 6, driving the rotating tube 6 to rotate around the support tube 5. The rotating tube 6 drives the rotating rod 8 to rotate via the rotating plate 7. The rotating rod 8 drives the connecting plate 202 to rotate. The connecting plate 202 drives the rotating ring 203 to rotate around the mounting frame 201, causing the incomplete gear ring 204 to rotate synchronously. The incomplete gear ring 204 meshes with the first gear 206 outside the support rod 205, causing the support rod 205 to rotate synchronously. 05 drives the eccentric disk 207 to rotate. When the eccentric disk 207 rotates, it pushes the ring 208 to pull the push rod 209 to slide along the limiting tube 14. A spring is provided between the push rod 209 and the limiting tube 14. This spring can prevent other push rods 209 from shifting during processing, which would cause unstable clamping. As a result, multiple positioning wheels 210 uniformly fit and clamp along the circumference of the optical crystal to achieve coaxial centering. At the same time, the vacuum suction cup 11 on the dust collection bucket 303 is connected to negative pressure through the support tube 5 to adsorb and fix the non-optical surface at the bottom of the optical crystal, forming a double positioning fixation. At the same time, the second gear 9 outside the rotating rod 8 meshes with the internal gear ring 10 inside the mounting frame 201 to realize the rotation of the rotating rod 8. Meanwhile, the rotating rod 8 is driven by the conveyor belt. The mounting rod 404 rotates, and the first bevel gear 405 on the mounting rod 404 meshes with the second bevel gear 406 outside the cleaning rod 403, driving the cleaning rod 403 and the wiping roller 401 to rotate. Before the milling cutter 17 deburrs, the edge of the optical crystal is cleaned by rotation. The electric slide rail 15 drives the sliding seat 16 and the milling cutter 17 to move, performing deburring around the optical crystal. During the milling deburring process, the rotating ring 203 drives the incomplete toothed ring 204 to rotate continuously in a circular motion. The incomplete toothed ring 204 rotates according to the milling path and only meshes with one of the first gears 206 on that path, driving the corresponding support rod 205 to rotate. The eccentric disk 207 rotates synchronously, and the traction push rod 209 drives the positioning wheel at that position. 210 retracts backward to avoid interference from the milling cutter 17. The positioning wheel 210 on the non-milling path remains clamped to ensure that the crystal does not shift. After the incomplete toothed ring 204 leaves the position, the corresponding positioning wheel 210 immediately resets, and the positioning cylinder merges accordingly. Only a single positioning wheel 210 on the milling path is opened throughout the entire process, while the positioning wheels 210 on other paths remain clamped to ensure that the crystal does not shift. In addition, the connecting pipe 302 on the connecting plate 202 drives the dust collection head 301 to rotate synchronously with the milling cutter 17. The air pump 304 in the dust collection mechanism 3 starts. Its input end is connected to the dust collection head 301 through the connecting pipe 302, and its output end is connected to the dust collection bucket 303 to form a negative pressure dust collection circuit, which adsorbs and collects the debris generated by milling and deburring in real time.After the milling cutter 17 completes the deburring operation around the perimeter, the electric slide rail 15 drives the milling cutter 17 to reset, the motor stops, the vacuum suction cup 11 releases pressure and releases its adsorption, and the wiping roller 401 stops rotating, completing the entire optical crystal milling and deburring operation.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A milling apparatus for optical crystals, comprising a frame (1), characterized in that: The frame (1) is provided with a positioning mechanism (2) on its exterior. The positioning mechanism (2) includes a mounting frame (201) and a connecting plate (202). A rotating ring (203) is rotatably connected to the lower surface of the mounting frame (201) via a bearing. The rotating ring (203) is fixedly connected to the connecting plate (202). An incomplete toothed ring (204) is fixedly connected to the outer surface of the rotating ring (203). Multiple support rods (205) are rotatably connected to the outer surface of the mounting frame (201) via bearings. The outer surface of each support rod (205) is fixedly connected with a first gear (206), and multiple first gears (206) are meshed with an incomplete gear ring (204). The outer surface of each support rod (205) is fixedly connected with a disc (207), and the outer surface of the disc (207) is rotatably connected with a ring (208). The outer surface of the ring (208) is rotatably connected with a push rod (209) via a rotating shaft, and the outer surface of the push rod (209) is rotatably connected with a positioning wheel (210).

2. The milling apparatus for optical crystals according to claim 1, characterized in that: The upper surface of the frame (1) is fixedly connected to a support tube (5), the outer surface of the support tube (5) is rotatably connected to a rotating tube (6) via a bearing, the outer surface of the rotating tube (6) is fixedly connected to a rotating plate (7), the outer surface of the rotating plate (7) is rotatably connected to a rotating rod (8) via a bearing, and the rotating rod (8) is rotatably connected to the connecting plate (202) via a bearing.

3. The milling apparatus for optical crystals according to claim 2, characterized in that: The top of the frame (1) is also provided with a dust collection mechanism (3), which includes a dust collection head (301). A connecting pipe (302) is fixedly connected to the inner surface of the connecting plate (202). A dust collection bucket (303) is rotatably connected to the outer surface of the support pipe (5) through a bearing. An air pump (304) is installed on the outer surface of the dust collection bucket (303). The input end of the air pump (304) is connected to the connecting pipe (302), and the output end of the air pump (304) is connected to the dust collection bucket (303). The other end of the connecting pipe (302) is connected to the dust collection head (301).

4. The milling apparatus for optical crystals according to claim 1, characterized in that: The top of the frame (1) is also provided with a cleaning mechanism (4), which includes a wiping roller (401). A support plate (402) is fixedly connected to the upper surface of the connecting plate (202). A cleaning rod (403) is rotatably connected to the inner surface of the support plate (402) through a bearing. The cleaning rod (403) is fixedly connected to the wiping roller (401). An installation rod (404) is rotatably connected to the outer surface of the connecting plate (202) through a bearing. A first bevel gear (405) is fixedly connected to the upper surface of the installation rod (404). A second bevel gear (406) is fixedly connected to the outer surface of the cleaning rod (403). The first bevel gear (405) and the second bevel gear (406) are meshed together.

5. The milling apparatus for optical crystals according to claim 2, characterized in that: The outer surface of the rotating rod (8) is fixedly connected to a second gear (9), and the inner surface of the mounting bracket (201) is fixedly connected to an internal gear ring (10), which meshes with the second gear (9).

6. The milling apparatus for optical crystals according to claim 3, characterized in that: The upper surface of the dust collection bin (303) is rotatably connected to a vacuum suction cup (11), and the lower surface of the vacuum suction cup (11) is connected to the support tube (5).

7. The milling apparatus for optical crystals according to claim 2, characterized in that: The upper surface of the frame (1) is rotatably connected to a positioning rod (12) via a bearing. The outer surfaces of the positioning rod (12) and the rotating tube (6) are both fixedly connected to a third gear (13). The two third gears (13) are meshed together. The rotating rod (8) and the mounting rod (404) are connected by a conveyor belt. A motor is installed on the inner surface of the frame. The output end of the motor is fixedly connected to the positioning rod (12).

8. The milling apparatus for optical crystals according to claim 1, characterized in that: The mounting bracket (201) has a fixed connection to a limiting tube (14) on its outer surface, and the push rod (209) is slidably connected to the limiting tube (14).

9. The milling apparatus for optical crystals according to claim 1, characterized in that: The mounting bracket (201) is fixedly connected to the frame (1). An electric slide rail (15) is installed on the outer surface of the frame (1). A sliding seat (16) is slidably connected to the outer surface of the electric slide rail (15). A milling cutter (17) is installed on the lower surface of the sliding seat (16).

10. A milling method for optical crystals, applied to the milling apparatus for optical crystals as described in any one of claims 1-9, characterized in that: Includes the following steps: S1: The positioning wheel (210) initially positions the optical crystal around its perimeter, while the vacuum suction cup (11) uses negative pressure to adsorb the bottom of the crystal, forming a double fixation. S2: The rotating rod (8) rotates by meshing with the internal gear ring (10) through the second gear (9), and synchronously drives the mounting rod (404) to rotate via the conveyor belt. The bevel gear meshes and drives the wiping roller (401) to rotate, thus cleaning the crystal edge in advance. S3: The electric slide rail (15) drives the milling cutter (17) to move, deburring the crystal. The incomplete toothed ring (204) rotates along the milling path with the rotating ring (203), only meshing with a single first gear (206) on the path, driving the corresponding positioning wheel (210) to retract backward to avoid the milling cutter (17), while the remaining positioning wheels (210) remain clamped to prevent deviation. S4: After the incomplete toothed ring (204) leaves, the corresponding positioning wheel (210) immediately resets and the positioning cylinder merges. At the same time, the dust collection head (301) rotates synchronously with the milling cutter (17), and the air pump (304) starts to form a negative pressure circuit to adsorb milling debris in real time. S5: The milling cutter (17) completes deburring, the electric slide rail (15) drives the milling cutter (17) to reset, the motor stops, the vacuum suction cup (11) releases pressure, the wiping roller (401) stops rotating, and the entire milling deburring operation is completed.

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