An optical lens cold working device

Abstract

The utility model relates to the technical field of lens processing, specifically is an optical lens cold processing device, including lens processing machine main part, be equipped with processing platform on lens processing machine main part, install clamping mechanism on processing platform, clamping mechanism includes base and clamping component, base top surface is equipped with positioning pin hole and a pair of foolproof pin hole, clamping component includes base disk, screw rod and movable seat, base disk bottom surface is equipped with positioning pin column and a pair of foolproof pin column. The optical lens cold processing device, when needing to detect the optical lens after processing, can directly detach the clamping component from the base, carry to the detection equipment and detect, do not need to disassemble the lens, when reinstalling, the position of the base on the processing platform does not change, and the clamping component is positioned and installed through the positioning pin column and the positioning pin hole, the foolproof pin column and the foolproof pin hole, can guarantee the position accuracy of the lens on the processing platform, and do not need to calibrate again.

Description

Technical Field

[0001] This utility model relates to the field of lens processing technology, specifically to a cold processing device for optical lenses. Background Technology

[0002] Cold processing of optical lenses is a technique that uses milling, polishing and other processes to precisely process optical lenses, enabling them to meet specific optical performance and surface quality requirements. It is widely used in optical instruments, eyeglasses and other fields.

[0003] Utility model patent CN212399079U discloses a planar milling machine for optical cold processing. This machine includes a machine base, a lifting mechanism, a milling mechanism, and a fixing mechanism. The machine base is connected to the milling mechanism via the lifting mechanism. When planar milling of an optical lens is required, the optical lens is pressed onto a suction cup. A vacuum generator is then activated, causing the suction cup to fix the optical lens. The lifting mechanism then lowers the milling wheel and polishing wheel. Simultaneously, a first driving component drives the milling wheel and polishing wheel to rotate via a connecting component. Once the lens has descended to the required milling height, the lifting mechanism stops. At the same time, a horizontal moving component moves the planar table horizontally, bringing the optical lens closer to the milling wheel. The milling wheel performs planar milling and initial polishing, followed by secondary polishing using the polishing wheel. This allows for more convenient milling of the lens, resulting in a more stable and smoother milled lens.

[0004] The optical cold processing surface milling machine requires the lens to be removed for inspection after the lens is processed. However, since the lens needs to be reprocessed and reinstalled, the equipment cannot guarantee that the relative position of the reinstalled lens and the processing mechanism will remain unchanged. Therefore, the lens needs to be recalibrated, which is a cumbersome process that increases the number of operation steps and time costs. Utility Model Content

[0005] The purpose of this invention is to provide an optical lens cold processing device to solve the problem mentioned in the background art that lens reprocessing requires recalibration when reinstalling.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An optical lens cold processing apparatus includes a lens processing machine body with a processing platform on the machine body. A clamping mechanism for holding optical lenses is mounted on the processing platform. The clamping mechanism includes a base and a clamping assembly detachably mounted on the top of the base. A positioning pin hole is provided at the rear edge of the top surface of the base, and a pair of anti-misalignment pin holes are provided at the front edge of the top surface of the base. The clamping assembly includes a base plate, several lead screws rotatably connected to the base plate, and several movable seats for holding optical lenses. The base plate is mounted on the top surface of the base. The lead screws pass through the movable seats and are threadedly connected to them. A positioning pin is provided at the rear edge of the bottom surface of the base plate, and a pair of anti-misalignment pins are provided at the front edge of the bottom surface of the base plate. The positioning pins correspond to the positioning pin holes, and the anti-misalignment pins correspond to the anti-misalignment pin holes.

[0008] Preferably, the top surface of the processing platform has a plurality of threaded holes arranged in a rectangular array, and a plurality of pressure plates are bolted to the processing platform, the pressure plates using downward pressure to press the base against the top surface of the processing platform;

[0009] In this setup, the pressure plate is installed by the engagement of bolts and threaded holes. The downward pressure of the pressure plate can firmly press the base against the processing platform, ensuring the reliability of the base installation.

[0010] Preferably, the bottom edge of the outer surface of the base is provided with a transversely protruding flange, the first end of the pressure plate abuts against the top surface of the processing platform, and the end of the pressure plate abuts against the top surface of the flange;

[0011] In this setting, the cooperation between the protruding edge and the pressure plate can clearly define the contact position of the pressure plate, allowing the pressure plate to apply downward pressure to the base more precisely and enhancing the stability of the base installation.

[0012] Preferably, the top surface of the base is provided with a plurality of threaded posts in an annular shape with equal spacing, and the outer peripheral surface of the base plate is provided with a plurality of lugs. The number of lugs is equal to the number of threaded posts and their positions correspond one-to-one. The threaded posts pass through the lugs upward and are threadedly connected to nuts.

[0013] In this configuration, the threaded post and lug are connected by a nut, which securely mounts the base plate onto the base, ensuring a stable connection between the clamping assembly and the base.

[0014] Preferably, the outer peripheral surface of the base plate is provided with a plurality of movable grooves with a cross-section of T-shape, and the bottom of the movable seat is provided with protruding edges on both the left and right sides. The movable seat is fitted into the movable groove and can move along the movable groove.

[0015] In this configuration, the T-shaped movable groove and the convex edge work together to allow the movable seat to move smoothly within the movable groove, providing a reliable guide for adjusting the position of the movable seat.

[0016] Preferably, a first fixing block is fixed to the inner end of the movable groove with bolts, and a hanging post is provided at the first end of the lead screw. The hanging post is hung on the first fixing block and rotatably connected to the first fixing block.

[0017] In this configuration, the first fixed block supports and positions the head end of the lead screw, ensuring the stability of the lead screw during rotation and enabling the lead screw to reliably drive the movable seat to move.

[0018] Preferably, a second fixing block is fixed to the outer end of the movable groove with bolts, and a handle is installed at the end of the lead screw after passing through the second fixing block. The end of the lead screw is rotatably connected to the second fixing block.

[0019] In this configuration, the second fixing block supports the end of the lead screw, while the handle allows the operator to easily rotate the lead screw, making the adjustment of the position of the movable seat more convenient.

[0020] Preferably, a clamping groove is provided at the inner edge of the top of the movable seat, and the outer peripheral edge of the bottom surface of the optical lens abuts against the bottom of the clamping groove. The optical lens can be clamped by the several movable seats by the sidewalls of the clamping grooves on the several movable seats abutting against the outer peripheral edge of the optical lens.

[0021] In this configuration, the clamping slots can accurately position the optical lenses. By having the sidewalls of the clamping slots of multiple movable seats abut against the edge of the lens, the optical lenses are stably clamped, ensuring positional accuracy during lens processing.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This optical lens cold processing device uses a clamping mechanism to fix the base and processing platform together with a pressure plate. The clamping assembly is detachably mounted on the base. When the processed optical lens needs to be inspected, the clamping assembly can be directly removed from the base and taken to the inspection equipment for inspection without disassembling the lens. After inspection, the clamping assembly is reinstalled on the base. Since the position of the base on the processing platform remains unchanged, and the clamping assembly is positioned using positioning pins and positioning pin holes, as well as anti-misalignment pins and anti-misalignment pin holes, the positional accuracy of the lens on the processing platform can be guaranteed, eliminating the need for recalibration. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2This is an exploded view of the clamping mechanism in this utility model;

[0026] Figure 3 This is a schematic diagram of the clamping component in this utility model;

[0027] Figure 4 This is a schematic diagram of the base plate structure in this utility model;

[0028] Figure 5 This is a schematic diagram of the bottom structure of the base plate in this utility model;

[0029] Figure 6 This is a schematic diagram of the lead screw in this utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the movable seat in this utility model;

[0031] The meanings of the labels in the diagram are as follows:

[0032] 100. Lens processing machine body; 110. Processing platform; 111. Threaded hole; 120. Pressure plate;

[0033] 200. Clamping mechanism; 210. Base; 211. Locating pin hole; 212. Anti-fooling pin hole; 213. Threaded post; 214. Protruding edge; 220. Clamping assembly; 221. Base plate; 2211. Locating pin; 2212. Anti-fooling pin; 2213. Movable groove; 2214. First fixing block; 2215. Second fixing block; 2216. Lug; 222. Lead screw; 2221. Hanging post; 2222. Handle; 223. Movable seat; 2231. Clamping groove; 2232. Protruding edge. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-7An optical lens cold processing apparatus includes a lens processing machine body 100, a processing platform 110 on the lens processing machine body 100, and a clamping mechanism 200 for clamping optical lenses installed on the processing platform 110. The clamping mechanism 200 includes a base 210 and a clamping component 220 detachably installed on the top of the base 210. The top surface of the processing platform 110 has a number of threaded holes 111 arranged in a rectangular array. Several pressure plates 120 are bolted onto the processing platform 110. The bolts are screwed into the corresponding threaded holes 111. The bottom edge of the outer surface of the base 210 has a transversely protruding flange 214. The first end of the pressure plate 120 abuts against the top surface of the processing platform 110, and the end of the pressure plate 120 abuts against the top surface of the flange 214. By tightening the bolts on the pressure plate 120, the pressure plate 120 can apply downward pressure to press the base 210 against the top surface of the processing platform 110. This structural design can ensure the installation stability of the base 210 on the processing platform 110 and prevent the base 210 from shifting during processing.

[0036] like Figure 2 As shown, in this utility model, the clamping assembly 220 includes a base plate 221, a plurality of lead screws 222 rotatably connected to the base plate 221, and a plurality of movable seats 223 for clamping optical lenses.

[0037] like Figure 2 and Figure 5 As shown, specifically, a positioning pin hole 211 is provided at the rear edge of the top surface of the base 210, and a pair of anti-misalignment pin holes 212 are provided at the front edge of the top surface of the base 210. A positioning pin 2211 is provided at the rear edge of the bottom surface of the base 221, and a pair of anti-misalignment pins 2212 are provided at the front edge of the bottom surface of the base 221. The positioning pin 2211 and the positioning pin hole 211 are positioned correspondingly, and the anti-misalignment pin 2212 and the anti-misalignment pin hole 212 are positioned correspondingly. Through the cooperation of the positioning pin 2211 and the positioning pin hole 211, and the cooperation of the anti-misalignment pin 2212 and the anti-misalignment pin hole 212, the base 221 can be accurately positioned on the base 210, while preventing the base 221 from being installed in the wrong direction.

[0038] like Figures 2-5 As shown, the top surface of the base 210 is provided with a number of threaded posts 213 in an annular shape at equal intervals, and the outer peripheral surface of the base plate 221 is provided with a number of lugs 2216. The number of lugs 2216 is equal to the number of threaded posts 213 and their positions correspond one-to-one. The threaded posts 213 pass through the lugs 2216 and are threadedly connected to nuts. By tightening the nuts, the base plate 221 can be installed on the top surface of the base 210. This connection method allows the base plate 221 to be firmly installed on the base 210, ensuring the connection stability between the clamping assembly 220 and the base 210. At the same time, by removing the nuts from the threaded posts 213, the base plate 221 can be removed from the base 210.

[0039] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the outer peripheral surface of the base plate 221 is provided with several T-shaped movable grooves 2213. The bottom left and right edges of the movable seat 223 are provided with protruding edges 2232. The movable seat 223 fits into the movable groove 2213 and can move along the groove. The matching design of the T-shaped movable groove 2213 and the protruding edges 2232 allows the movable seat 223 to move smoothly within the movable groove 2213, providing a basis for the clamping and releasing of the lens. A first fixing block 2214 is bolted to the inner end of the movable groove 2213. The head end of the lead screw 222 is provided with a hanging post 2221, which is hooked onto the first fixing block 2214 and rotatably connected to it. The first fixing block 2214 provides support and positioning for the head end of the lead screw 222, ensuring the stability of the lead screw 222 during rotation. A second fixing block 2215 is bolted to the outer end of the movable groove 2213. The end of the lead screw 222 passes through the second fixing block 2215 and is fitted with a handle 2222. The end of the lead screw 222 is rotatably connected to the second fixing block 2215. The second fixing block 2215 supports the end of the lead screw 222. The handle 2222 is designed to facilitate the operator to rotate the lead screw 222.

[0040] like Figure 7 As shown, it is worth noting that a clamping groove 2231 is provided at the inner edge of the top of the movable seat 223. The outer peripheral edge of the bottom surface of the optical lens abuts against the bottom of the clamping groove 2231. The optical lens can be clamped by the movable seats 223 through the sidewalls of the clamping grooves 2231 on several movable seats 223 abutting against the outer peripheral edge of the optical lens. The design of the clamping groove 2231 can accurately position the optical lens, and through the synergistic action of multiple movable seats 223, the optical lens can be stably clamped.

[0041] like Figure 2 , Figure 3 Figure 6 and Figure 7 As shown, it is worth noting that the lead screw 222 passes through the movable seat 223 and is threadedly connected to the movable seat 223. When the lead screw 222 is rotated, due to the threaded connection between the lead screw 222 and the movable seat 223, the movable seat 223 will move along the axial direction of the lead screw 222, thereby realizing the position adjustment of the movable seat 223 in the movable groove 2213 to complete the clamping or releasing action of the optical lens.

[0042] In this embodiment of the optical lens cold processing apparatus, firstly, the base 210 is placed on the processing platform 110, with the protruding edge 214 positioned below the pressure plate 120. Then, the pressure plate 120 is installed on the processing platform 110 using bolts. Tightening the bolts causes the pressure plate 120 to press the base 210 against the top surface of the processing platform 110 through downward pressure, completing the installation of the base 210. Next, while threaded pin 213 passes through lug 2216, the positioning pin 2211 of the base plate 221 is inserted into the positioning pin hole 211 of the base 210, and the anti-misalignment pin 2212 is inserted into the anti-misalignment pin hole 212, achieving initial positioning of the base plate 221. At this point, tightening the nut securely installs the base plate 221 onto the base 210. Then… The optical lens is placed on the base plate 221, with the outer peripheral edge of the bottom surface of the optical lens abutting against the bottom of the clamping groove 2231. By rotating the handle 2222, the lead screw 222 is rotated. Since the lead screw 222 is threadedly connected to the movable seat 223, the movable seat 223 moves along the movable groove 2213, causing the side wall of the clamping groove 2231 to abut against the outer peripheral edge of the optical lens, thereby clamping and fixing the optical lens. Finally, the optical lens is cold-worked. After the processing is completed, if the optical lens needs to be inspected, the base plate 221 can be directly removed and taken to the inspection equipment. After the inspection is completed, the base plate 221 is reinstalled. There is no need to recalibrate the position of the optical lens. The base plate 221 is then reinstalled onto the base 210 to complete the continued processing of the optical lens.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An optical lens cold processing apparatus, comprising a lens processing machine body (100), wherein a processing platform (110) is provided on the lens processing machine body (100), characterized in that: The processing platform (110) is equipped with a clamping mechanism (200) for clamping optical lenses. The clamping mechanism (200) includes a base (210) and a clamping assembly (220) detachably mounted on the top of the base (210). A positioning pin hole (211) is provided at the rear edge of the top surface of the base (210), and a pair of anti-fooling pin holes (212) are provided at the front edge of the top surface of the base (210). The clamping assembly (220) includes a base plate (221), a number of lead screws (222) rotatably connected to the base plate (221), and a number of optical lenses clamping mechanisms. The lens has a movable seat (223), the base plate (221) is mounted on the top surface of the base (210), the lead screw (222) passes through the movable seat (223) and is threadedly connected to the movable seat (223), the rear edge of the bottom surface of the base plate (221) is provided with a positioning pin (2211), and the front edge of the bottom surface of the base plate (221) is provided with a pair of anti-misalignment pins (2212). The positioning pin (2211) corresponds to the positioning pin hole (211), and the anti-misalignment pin (2212) corresponds to the anti-misalignment pin hole (212).

2. The optical lens cold processing apparatus according to claim 1, characterized in that: The top surface of the processing platform (110) has a number of threaded holes (111) arranged in a rectangular array. Several pressure plates (120) are bolted on the processing platform (110). The pressure plates (120) use downward pressure to press the base (210) against the top surface of the processing platform (110).

3. The optical lens cold processing apparatus according to claim 2, characterized in that: The base (210) has a horizontally protruding flange (214) at the bottom edge of its outer surface. The first end of the pressure plate (120) abuts against the top surface of the processing platform (110), and the end of the pressure plate (120) abuts against the top surface of the flange (214).

4. The optical lens cold processing apparatus according to claim 1, characterized in that: The top surface of the base (210) is provided with a number of threaded posts (213) in an annular shape with equal spacing. The outer peripheral surface of the base plate (221) is provided with a number of lugs (2216). The number of lugs (2216) is equal to the number of threaded posts (213) and their positions correspond one-to-one. The threaded posts (213) pass through the lugs (2216) upward and are threaded with nuts.

5. The optical lens cold processing apparatus according to claim 1, characterized in that: The outer peripheral surface of the base plate (221) is provided with several movable grooves (2213) with a cross-section in the shape of T. The bottom left and right sides of the movable seat (223) are provided with protruding edges (2232). The movable seat (223) is fitted into the movable groove (2213) and can move along the movable groove (2213).

6. The optical lens cold processing apparatus according to claim 5, characterized in that: The inner end of the movable groove (2213) is fixed with a first fixing block (2214) by bolts. The first end of the screw (222) is provided with a hanging post (2221). The hanging post (2221) is hung on the first fixing block (2214) and rotatably connected to the first fixing block (2214).

7. The optical lens cold processing apparatus according to claim 5, characterized in that: A second fixing block (2215) is fixed to the outer end of the movable groove (2213) with bolts. The end of the lead screw (222) passes through the second fixing block (2215) and is fitted with a handle (2222). The end of the lead screw (222) is rotatably connected to the second fixing block (2215).

8. The optical lens cold processing apparatus according to claim 1, characterized in that: A clamping groove (2231) is provided at the inner edge of the top of the movable seat (223). The outer peripheral edge of the bottom surface of the optical lens abuts against the bottom of the clamping groove (2231). The optical lens can be clamped by the movable seats (223) by the sidewalls of the clamping groove (2231) on the movable seats (223) abutting against the outer peripheral edge of the optical lens.

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