Engraving and milling machine for optical lens machining

Abstract

The invention relates to the technical field of engraving and milling machines, and provides an engraving and milling machine for machining an optical lens, which can realize comprehensive machining operation of the lens, is higher in machining efficiency, can keep normalized clamping of a lens blank in a lens blank machining process, and is higher in positioning precision of the lens blank in a clamping switching process of the lens blank. The lens blank machining device comprises a workbench and a lens blank and further comprises a symmetrical carving structure, a modulation mounting assembly is mounted on the workbench, the symmetrical carving structure comprises two opposite moving frames, the two opposite moving frames are both mounted on the modulation mounting assembly, and mounting main shafts are rotationally connected to the two opposite moving frames; the two opposite moving frames are each provided with a main shaft motor, the two main shaft motors are used for rotating driving of the two mounting main shafts correspondingly, the two mounting main shafts are each detachably provided with a fine carving tool, a clamping structure is mounted on the workbench, the modulation mounting assembly comprises a rotating bottom frame, and a sliding vertical frame is slidably connected to the rotating bottom frame.

Description

Technical Field

[0001] The present invention relates to the technical field of engraving machines, and particularly to an engraving machine for processing optical lenses. Background Art

[0002] As is well known, an optical lens refers to a device made of a transparent material using the principles of light refraction or reflection, and is commonly used in fields such as imaging, light collection, and optical instruments. Its manufacturing process is complex. To ensure the use effect, the surface accuracy requirement is extremely high, and generally various functional film layers are coated on the surface. To facilitate the processing of optical lenses, we propose an engraving machine for processing optical lenses.

[0003] After retrieval, the patent with the Chinese patent publication number CN116276477B and the patent with the Chinese patent publication number CN221622633U respectively disclose an engraving machine for processing optical lenses and a numerically controlled engraving machine for optical lenses. The former is generally described as including a chassis, a workbench provided on the chassis, a mounting member slidably provided on the workbench, a driving member provided on the workbench for driving the mounting member to slide, the driving member being connected to the mounting member, a material taking mechanism provided on the workbench, a lifting mechanism slidably provided on the chassis, a first sliding mechanism slidably provided on the lifting mechanism, a second sliding mechanism slidably provided on the first sliding mechanism, and a grinding mechanism provided on the second sliding mechanism. The latter is generally described as including a bed body, a processing space for milling and grinding the lens is provided inside the bed body, and a numerically controlled processing module is provided inside the processing space. The numerically controlled processing module includes an axial driving bracket and a tool head assembly for milling and grinding the lens that slides up and down along the axial driving bracket. When in use, through the combination of the first negative pressure loading mechanism and the second negative pressure loading mechanism, after the first surface of the optical lens is processed, the optical lens is sucked up by the second negative pressure loading mechanism, and is rotated 180° by the rotating mechanism. At this time, the unprocessed surface of the optical lens is facing up. Then, the tool head assembly is lowered to continue processing the other surface of the optical lens. Therefore, the lens can be automatically flipped and repositioned to the other surface after one surface is processed, without manual intervention, thus greatly improving the production efficiency.

[0004] Although the above-mentioned prior art solutions can be applied to the processing operation of optical lenses, the processing of lenses covers both the front and back sides and the side surfaces of the lens. In the above two sets of technical solutions, for the processing of the front and back sides of the lens, one side needs to be processed first and then the other side. When switching between the processing of the front and back sides, the optical lens needs to be flipped, and the adjustment action for the optical lens is large. The repeat positioning accuracy needs to be further improved, and the processing accuracy needs to be further enhanced. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a precision engraving machine for optical lens processing, which can realize the comprehensive processing operation of lenses, has a relatively high processing efficiency, can maintain the normal clamping of the lens blank during the processing of the lens blank, has a relatively high positioning accuracy of the lens blank during the clamping switching process of the lens blank, and has a higher processing accuracy of the lens blank.

[0006] To achieve the above object, the present invention provides the following technical solution: A precision engraving machine for optical lens processing, including a workbench and a lens blank, further including a symmetric engraving structure. A rotation and adjustment installation component is installed on the workbench. The symmetric engraving structure includes two moving frames. Both of the two moving frames are installed on the rotation and adjustment installation component. Installation spindles are rotatably connected to both of the two moving frames. Spindle motors are installed on both of the two moving frames. The two spindle motors are respectively used for driving the rotation of the two installation spindles. Precision engraving tools are detachably installed on the two installation spindles. A clamping structure is installed on the workbench, and the clamping structure is used for clamping the lens blank.

[0007] Preferably, the rotation and adjustment installation component includes a rotating bottom frame. A sliding vertical frame is slidably connected to the rotating bottom frame. A lifting inner frame is slidably connected to the sliding vertical frame. A rotation and adjustment bar frame is rotatably connected to the lifting inner frame. A first servo motor, a second servo motor, an electric driving rod, and a fourth servo motor are respectively installed on the workbench, the rotating bottom frame, the sliding vertical frame, and the lifting inner frame. The first servo motor is used for controlling the rotation of the rotating bottom frame relative to the workbench. The second servo motor is used for controlling the sliding of the sliding vertical frame relative to the rotating bottom frame. The electric driving rod is used for adjusting the height of the lifting inner frame relative to the sliding vertical frame. The fourth servo motor is used for adjusting the rotation of the rotation and adjustment bar frame relative to the lifting inner frame. Both of the two moving frames are slidably connected to the rotation and adjustment bar frame. A third servo motor is installed on the lifting inner frame, and the third servo motor is used for the relative adjustment of the two moving frames.

[0008] Preferably, both of the two moving frames are fixedly connected with transmission racks. A driving gear is installed on the output shaft of the third servo motor. Both of the two transmission racks are meshed with the driving gear.

[0009] Preferably, the clamping structure includes a sliding mounting frame which is slidably connected to the workbench. A limiting component is installed between the sliding mounting frame and the workbench. A rotating vertical frame is installed on the sliding mounting frame. A linkage component is installed on the rotating vertical frame. Two vertically moving clamping frames are slidably connected to the rotating vertical frame. Clamping discs are rotatably connected to both of the two vertically moving clamping frames. A fifth servo motor is installed on one of the vertically moving clamping frames on the upper side, and the fifth servo motor is used to drive the rotation of one of the clamping discs on the upper side. Two horizontally moving clamping frames are rotatably connected to the rotating vertical frame. The linkage component is used for the linkage adjustment of the two vertically moving clamping frames and the two horizontally moving clamping frames. The two vertically moving clamping frames cooperate with the lens blank to form upper and lower clamping, and the two horizontally moving clamping frames cooperate with the lens blank to form front and rear clamping. Vertical clamping springs are fixedly connected to both of the two vertically moving clamping frames, and both of the vertical clamping springs are fixedly connected inside the rotating vertical frame. Horizontal clamping springs are connected to both of the two horizontally moving clamping frames, and both of the horizontal clamping springs are connected to the rotating vertical frame.

[0010] Preferably, a rotating connecting shaft is fixedly connected to the bottom end of the rotating vertical frame. A rotating connecting groove is formed on the sliding mounting frame, and the rotating connecting shaft is rotatably connected in the rotating connecting groove. A linkage rod is fixedly connected to the rotating vertical frame. A connecting shaft is rotatably connected to the linkage rod. A traction rod is rotatably connected to the connecting shaft, and the traction rod is rotatably connected inside the workbench. A suspension bracket is fixedly connected inside the workbench, and a pressure sensor is installed inside the suspension bracket. A pressure contact bump matching the pressure sensor is arranged on the traction rod.

[0011] Preferably, a rotating block is rotatably connected inside the workbench. A limiting spring is fixedly connected to the rotating block. A connecting block is fixedly connected to the limiting spring, and the connecting block is rotatably connected to the linkage rod.

[0012] Preferably, the linkage component includes a portal side frame which is fixedly connected to the rotating vertical frame. An electric telescopic rod is installed on the portal side frame. A transmission column is fixedly connected to the telescopic rod of the electric telescopic rod. A double-ear frame is slidably connected to the transmission column. A disc spring is connected between the double-ear frame and the transmission column. Two transmission plates are rotatably connected to the double-ear frame. Two extension frames are rotatably connected to both of the two transmission plates, and the two extension frames are respectively fixedly connected to the horizontally moving clamping frames. A driving cylinder is slidably connected to the transmission column, and a slow push spring is connected between the driving cylinder and the transmission column. A threaded cylinder is threadedly connected to the driving cylinder, and the threaded cylinder is rotatably connected to the rotating vertical frame. A linkage gear is fixedly connected to the threaded cylinder, and the linkage gear meshes with two linkage racks. Both of the two linkage racks are respectively fixedly connected to the two vertically moving clamping frames.

[0013] Preferably, two sliding sleeves are fixedly connected to the bottom end of the sliding mounting frame, and guide rails are slidably connected in both of the two sliding sleeves, and both of the two guide rails are fixedly connected in the workbench.

[0014] Preferably, the limiting component includes a rotating hand-held ring and two limiting columns. The rotating hand-held ring is rotatably connected to two mounting seats, and both of the two mounting seats are fixedly connected to the sliding mounting frame. Both of the two limiting columns are slidably connected to the sliding mounting frame. Two strip-shaped holes are formed in the rotating hand-held ring, and two linkage frames are connected to both of the two strip-shaped holes. The two linkage frames are respectively fixedly connected to the two limiting columns, and limiting holes respectively matching the two limiting columns are formed in both of the two guide rails.

[0015] Preferably, a protective frame is installed on the workbench, a sheet metal protective cover is arranged outside the protective frame, support legs are fixedly connected to four corner positions at the bottom end of the workbench, and a recycling box is arranged at the bottom end of the workbench.

[0016] Compared with the prior art, the present invention provides a precision engraving machine for optical lens processing, and has the following beneficial effects: (1) In the present invention, through the structural design of the symmetric engraving structure, a corresponding processing function part for removing materials is formed in cooperation with the lens blank. By adopting symmetric double working points, the cutting processing operation of the lens blank is realized. While improving the cutting efficiency, the cutting forces between the two points can partially cancel each other out, ensuring that the lens blank has a good positioning effect.

[0017] (2) In the present invention, through the design of the rotation and adjustment mounting component, an installation structure matching the symmetric engraving structure is formed, which can provide corresponding movement adjustment in cooperation with the symmetric engraving structure, and then realize the formation of the cutting feed movement.

[0018] (3) In the present invention, through the design of the clamping structure, a clamping and positioning function part matching the lens blank is provided. During the processing of the lens blank, the lens blank can be clamped normally. During the clamping switching process of the lens blank, the positioning accuracy of the lens blank is relatively high, and the processing accuracy of the lens blank is higher. Description of the Drawings

[0019] Figure 1 is a three-dimensional structural schematic diagram of the whole interior of the present invention; Figure 2 is of the present invention Figure 1 is a partial enlarged structural schematic diagram of part A in Figure 3 is a three-dimensional structural schematic diagram of the cooperation of the workbench, the lens blank and the displacement frame, etc. of the present invention; Figure 4 is of the present invention Figure 3 is a partial enlarged structural schematic diagram of part B in Figure 5 This is a three-dimensional structure schematic diagram of the partial section of the workbench, the opposing moving frame, the protective frame, etc. of the present invention in cooperation; Figure 6 This is a three-dimensional structure schematic diagram of the sliding mounting frame, the rotating vertical frame, the vertical opposing moving clamping frame, etc. of the present invention in cooperation; Figure 7 This is a three-dimensional structure schematic diagram of the partial section of the rotating vertical frame, the double-ear frame, the disc spring, etc. of the present invention in cooperation; Figure 8 This is a three-dimensional structure schematic diagram of the partial section of the opposing moving frame, the precision carving tool, the sliding vertical frame, etc. of the present invention in cooperation; Figure 9 This is a three-dimensional structure schematic diagram of the whole of the present invention; Figure 10 This is a three-dimensional structure schematic diagram of another angle of the partial section of the workbench, the opposing moving frame, the protective frame, etc. of the present invention in cooperation; Figure 11 This is a three-dimensional structure schematic diagram of another angle of the sliding mounting frame, the rotating vertical frame, the vertical opposing moving clamping frame, etc. of the present invention in cooperation; Figure 12 This is a three-dimensional structure schematic diagram of the partial section of the double-ear frame, the disc spring, the driving cylinder, etc. of the present invention in cooperation; Figure 13 This is a three-dimensional structure schematic diagram of the workbench, the traction rod, the guiding rail, etc. of the present invention in cooperation; Figure 14 This is a three-dimensional structure schematic diagram of the whole of the present invention in a bottom view; Figure 15 This is a three-dimensional structure schematic diagram of the partial section of the workbench, the opposing moving frame, the protective frame, etc. of the present invention in cooperation in a top view; Figure 16 This is a three-dimensional structure schematic diagram of the rotating hand-held ring, the limiting column, the linkage frame in cooperation of the present invention; Figure 17 This is a three-dimensional structure schematic diagram of the rotating vertical frame and the rotating connecting shaft in cooperation in a bottom view of the present invention; Figure 18 This is a three-dimensional structure schematic diagram of the lens blank in a loading state of the present invention.

[0020] In the figure: 1, workbench; 2, lens blank; 3, opposing moving frame; 4, mounting spindle; 5, spindle motor; 6, precision carving tool; 7, rotating base frame; 8, sliding vertical frame; 9, lifting inner frame; 10, rotating and adjusting bar frame; 11, first servo motor; 12, second servo motor; 13, electric drive rod; 14, third servo motor; 15, fourth servo motor; 16, transmission rack; 17, drive gear; 18, sliding mounting frame; 19, rotating vertical frame; 20, vertical opposing moving clamping frame; 21, horizontal opposing moving clamping frame; 22, vertical clamping spring; 23, horizontal clamping spring; 24, rotating connecting shaft; 25, linkage rod; 26, connecting shaft; 27, towing rod; 28, suspension bracket; 29, pressure sensor; 30, pressing contact bump; 31, rotating block; 32, limiting spring; 33, connecting block; 34, portal side frame; 35, electric telescopic rod; 36, transmission column; 37, double-ear frame; 38, disc spring; 39, transmission plate; 40, extending frame; 41, drive cylinder; 42, threaded cylinder; 43, linkage gear; 44, linkage rack; 45, sliding sleeve; 46, guide rail; 47, rotating hand-held ring; 48, limiting column; 49, mounting seat; 50, linkage frame; 51, limiting hole; 52, protection frame; 53, sheet metal protective cover; 54, support leg; 55, recycling bin. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] For the embodiment, please refer to Figures 1 - 18, A precision engraving machine for optical lens processing, comprising a workbench 1 and a lens blank 2, and further comprising a symmetric engraving structure. A rotation and adjustment installation component is installed on the workbench 1. The symmetric engraving structure includes two moving frames 3, both of which are installed on the rotation and adjustment installation component. Rotating mounting spindles 4 are rotatably connected to both of the two moving frames 3. Spindle motors 5 are installed on both of the two moving frames 3. The two spindle motors 5 are respectively used for driving the rotation of the two rotating mounting spindles 4. Precision engraving tools 6 can be detachably installed on the two rotating mounting spindles 4. Through the structural design of the symmetric engraving structure, a corresponding processing function part for removing materials is formed in cooperation with the lens blank 2. With symmetric double working points, the cutting processing operation of the lens blank 2 is realized. While improving the cutting efficiency, the cutting forces between the two points can partially cancel each other out, ensuring that the lens blank 2 has a good positioning effect. The rotation and adjustment installation component includes a rotating base frame 7. A sliding vertical frame 8 is slidably connected to the rotating base frame 7. A lifting inner frame 9 is slidably connected inside the sliding vertical frame 8. A rotation and adjustment bar frame 10 is rotatably connected to the lifting inner frame 9. A first servo motor 11, a second servo motor 12, an electric drive rod 13, and a fourth servo motor 15 are respectively installed on the workbench 1, the rotating base frame 7, the sliding vertical frame 8, and the lifting inner frame 9. The output shaft of the first servo motor 11 is connected to the rotating base frame 7. The first servo motor 11 is used for controlling the rotation of the rotating base frame 7 relative to the workbench 1. A drive lead screw is drivingly connected to the output shaft of the second servo motor 12. A threaded sleeve is threadedly connected to the drive lead screw. The threaded sleeve is fixedly connected inside the sliding vertical frame 8. Through the threaded cooperation between the threaded sleeve and the drive lead screw, when the second servo motor 12 works to drive the drive lead screw to rotate, the movement of the sliding vertical frame 8 can be driven. The second servo motor 12 is used for controlling the sliding of the sliding vertical frame 8 relative to the rotating base frame 7. The drive rod of the electric drive rod 13 is connected to the lifting inner frame 9. The electric drive rod 13 is used for adjusting the height of the lifting inner frame 9 relative to the sliding vertical frame 8. The fourth servo motor 15 is used for adjusting the rotation of the rotation and adjustment bar frame 10 relative to the lifting inner frame 9. Both of the two moving frames 3 are slidably connected to the rotation and adjustment bar frame 10. A third servo motor 14 is installed on the lifting inner frame 9. The third servo motor 14 is used for the relative adjustment of the two moving frames 3. Both of the two moving frames 3 are fixedly connected with transmission racks 16. A drive gear 17 is installed on the output shaft of the third servo motor 14. Both of the two transmission racks 16 are engaged with the drive gear 17. Through the design of the rotation and adjustment installation component, an installation structure matching the symmetric engraving structure is formed, which can provide corresponding movement adjustments in cooperation with the symmetric engraving structure, and then realize the formation of the cutting feed movement.

[0023] It should be further noted that a clamping structure is installed on the workbench 1 for clamping the lens blank 2. The clamping structure includes a sliding mounting frame 18 which is slidably connected to the workbench 1. A limiting component is installed between the sliding mounting frame 18 and the workbench 1. A rotating vertical frame 19 is installed on the sliding mounting frame 18. A linkage component is installed on the rotating vertical frame 19. Two vertically moving clamping frames 20 are slidably connected to the rotating vertical frame 19. Clamping discs are rotatably connected to both of the two vertically moving clamping frames 20. A fifth servo motor is installed on the upper vertically moving clamping frame 20 for driving the rotation of the upper clamping disc. Two horizontally moving clamping frames 21 are rotatably connected to the rotating vertical frame 19. The linkage component is used for the linkage adjustment of the two vertically moving clamping frames 20 and the two horizontally moving clamping frames 21. The two vertically moving clamping frames 20 cooperate with the lens blank 2 to form upper and lower clamping, and the two horizontally moving clamping frames 21 cooperate with the lens blank 2 to form front and rear clamping. Both of the two vertically moving clamping frames 20 are fixedly connected with vertical clamping springs 22, and both of the two vertical clamping springs 22 are fixedly connected inside the rotating vertical frame 19. Both of the two horizontally moving clamping frames 21 are connected with horizontal clamping springs 23, and both of the two horizontal clamping springs 23 are connected to the rotating vertical frame 19. The linkage component includes a gantry side frame 34 which is fixedly connected to the rotating vertical frame 19. An electric telescopic rod 35 is installed on the gantry side frame 34. A transmission column 36 is fixedly connected to the telescopic rod of the electric telescopic rod 35. A double-ear frame 37 is slidably connected to the transmission column 36. A disc spring 38 is connected between the double-ear frame 37 and the transmission column 36. Two transmission plates 39 are rotatably connected to the double-ear frame 37. Two extension frames 40 are rotatably connected to both of the two transmission plates 39, and the two extension frames 40 are respectively fixedly connected to the horizontally moving clamping frames 21. A driving cylinder 41 is slidably connected to the transmission column 36, and a slow-pushing spring is connected between the driving cylinder 41 and the transmission column 36. A threaded cylinder 42 is threadedly connected to the driving cylinder 41, and the threaded cylinder 42 is rotatably connected to the rotating vertical frame 19. A linkage gear 43 is fixedly connected to the threaded cylinder 42. The linkage gear 43 meshes with two linkage racks 44, and both of the two linkage racks 44 are respectively fixedly connected to the two vertically moving clamping frames 20. Through the design of the clamping structure, a matching clamping and positioning function part is provided for the lens blank 2. During the processing of the lens blank 2, the lens blank 2 can be clamped normally. During the clamping switching process of the lens blank 2, the positioning accuracy of the lens blank 2 is relatively high, and the processing accuracy of the lens blank 2 is higher.

[0024] It should be further explained that the bottom end of the rotating vertical frame 19 is fixedly connected with a rotating connecting shaft 24. A rotating connecting groove is formed in the sliding mounting frame 18. The rotating connecting shaft 24 is rotatably connected in the rotating connecting groove. A linkage rod 25 is fixedly connected to the rotating vertical frame 19. The linkage rod 25 is rotatably connected with a connecting shaft 26. The connecting shaft 26 is rotatably connected with a traction rod 27. The traction rod 27 is rotatably connected in the workbench 1. A suspension bracket 28 is fixedly connected in the workbench 1. A pressure sensor 29 is installed in the suspension bracket 28. A pressure contact bump 30 matching the pressure sensor 29 is arranged on the traction rod 27. A rotating block 31 is rotatably connected in the workbench 1. The rotating block 31 is fixedly connected with a limiting spring 32. The limiting spring 32 is fixedly connected with a connecting block 33. The connecting block 33 is rotatably connected with the linkage rod 25. During actual use, the limiting spring 32 can realize the limit after the backward rotation and the limit after the forward rotation of the linkage rod 25, and can also facilitate the auxiliary pushing backward and the auxiliary pushing forward of the sliding mounting frame 18, and is also convenient for the auxiliary limit when the sliding mounting frame 18 enters the workbench 1 and the auxiliary limit after the forward movement. The bottom end of the sliding mounting frame 18 is fixedly connected with two sliding sleeves 45. Guide rails 46 are slidably connected in both of the two sliding sleeves 45. Both of the two guide rails 46 are fixedly connected in the workbench 1. The limiting assembly includes a rotating hand-held ring 47 and two limiting posts 48. The rotating hand-held ring 47 is rotatably connected with two mounting seats 49. Both of the two mounting seats 49 are fixedly connected with the sliding mounting frame 18. Both of the two limiting posts 48 are slidably connected with the sliding mounting frame 18. Two strip-shaped holes are formed in the rotating hand-held ring 47. Linkage frames 50 are connected to both of the two strip-shaped holes. The two linkage frames 50 are respectively fixedly connected with the two limiting posts 48. Limiting holes 51 respectively matching the two limiting posts 48 are formed in both of the two guide rails 46. A protective frame 52 is installed on the workbench 1. A sheet metal protective cover 53 is arranged outside the protective frame 52. Support legs 54 are fixedly connected to the four corner positions at the bottom end of the workbench 1 to realize the support of the workbench 1 and provide enough placement space for the subsequent recycling bin 55. A recycling bin 55 is arranged at the bottom end of the workbench 1, which is convenient for collecting and temporarily storing the removed materials.

[0025] The spindle motor 5, the first servo motor 11, the second servo motor 12, the electric drive rod 13, the fourth servo motor 15, the third servo motor 14, the fifth servo motor, the pressure sensor 29 and the electric telescopic rod 35 in this embodiment are all conventional devices well-known to those skilled in the art and purchased on the market. In the present invention, we only use them and do not improve their structures and functions. For those skilled in the art, their setting methods, installation methods and electrical connection methods can be debugged and operated as long as they are in accordance with the requirements of their user manuals, and will not be elaborated here.

[0026] In summary, the working principle of the precision engraving machine for optical lens processing is as follows. When in use, first place the precision engraving machine for optical lens processing at the location where it is needed, and connect the control circuits of the spindle motor 5, the first servo motor 11, the second servo motor 12, the electric drive rod 13, the fourth servo motor 15, the third servo motor 14, the fifth servo motor, the pressure sensor 29 and the electric telescopic rod 35 according to their respective specifications, and integrate the control circuits. The integrated control circuit needs to be electrically connected with the pressure sensor 29. When the pressure sensor 29 bears a pressure value, the spindle motor 5, the first servo motor 11, the second servo motor 12, the electric drive rod 13, the fourth servo motor 15, the third servo motor 14 and the fifth servo motor can be powered on and run. When the pressure on the pressure sensor 29 is released, the spindle motor 5, the first servo motor 11, the second servo motor 12, the electric drive rod 13, the fourth servo motor 15, the third servo motor 14 and the fifth servo motor are all in a power-off state or a stopped state. Before processing the lens blank 2, control the two opposing brackets 3 to adjust from the state shown in Figure 1 and Figure 3 to the state shown in Figure 18 . During this process, first, the fourth servo motor 15 is powered on and runs to control the spur gear on the output shaft of the fourth servo motor 15 to form a rotational movement. Under the meshing drive of the spur gear and the spur gear ring on the rotation adjustment bar frame 10, when the fourth servo motor 15 is powered on and runs, the rotation adjustment bar frame 10 can be rotated and adjusted. When the rotation adjustment bar frame 10 rotates by 90 degrees, the opposing brackets 3 that were originally at the same height can be rotated and adjusted to a new upper and lower relative state.

[0027] Further, the operator opens the front double door on the sheet metal protective cover 53, holds and presses down the rotating hand ring 47, controls the rotating hand ring 47 to form a downward pressure relative to the mounting seat 49, so that the rotating hand ring 47 rotates relative to the mounting seat 49. Under the driving action of the linkage frame 50, the limit post 48 is pulled out relative to the limit hole 51. Keeping the downward pressure state of the rotating hand ring 47 and pulling the rotating hand ring 47 forward can realize the forward extension of the sliding mounting frame 18 relative to the workbench 1. During this process, the rotating vertical frame 19 will move forward synchronously with the sliding mounting frame 18, and under the action of the linkage rod 25 and the traction rod 27, the rotating vertical frame 19 will rotate synchronously during the forward movement. The rotation of the rotating vertical frame 19 will cause the vertical moving clamping frame 20 and the horizontal moving clamping frame 21 to rotate forward synchronously, so that the clamping and positioning area of the lens blank 2 rotates and extends relative to the workbench 1. After that, the feeding of the lens blank 2 is completed. When feeding the lens blank 2, it can be fed relative to the two vertical moving clamping frames 20, or it can be fed relative to the two horizontal moving clamping frames 21. When feeding relative to the two vertical moving clamping frames 20, it is necessary to manually assist in adjusting the two vertical moving clamping frames 20 to move away from each other. Then, place the lens blank 2 between the two vertical moving clamping frames 20 and release the separating force acting between the two vertical moving clamping frames 20. The two vertical moving clamping frames 20 move closer to each other to clamp the lens blank 2. The operation of clamping by the two horizontal moving clamping frames 21 is similar to the operation of the two vertical moving clamping frames 20 described above, and the difference is that it is necessary to manually assist in adjusting the two horizontal moving clamping frames 21 to move away from each other.

[0028] After the lens blank 2 is loaded and positioned, the electric telescopic rod 35 is controlled to operate to realize the repeated left and right movement of the transmission column 36, so as to improve the centering clamping and positioning effect of the lens blank 2. Taking the lens blank 2 being first positioned and clamped by two vertically moving clamping frames 20 as an example, when the transmission column 36 moves to the right, the double-ear frame 37 is driven to move to the right through the disc spring 38. The movement of the double-ear frame 37 to the right realizes the movement of the two transmission plates 39. The movement of the two transmission plates 39 realizes the movement drive of the two outstretched frames 40. The movement of the two outstretched frames 40 respectively realizes the synchronous relative movement of the two horizontally moving clamping frames 21. When the two horizontally moving clamping frames 21 move closer to each other, the V-shaped grooves on the opposite sides of the two horizontally moving clamping frames 21 will approach each other relative to the lens blank 2 until the V-shaped grooves form contact with the lens blank 2 and generate a certain pressure effect, so as to achieve the clamping and positioning of the side surface of the lens blank 2. During this process, the movement of the transmission column 36 to the right will push the slow push spring. The slow push spring bearing the driving force will act on the driving cylinder 41. Under the screw drive of the driving cylinder 41 and the threaded cylinder 42, the driving cylinder 41 has a tendency to rotate and push the linkage gear 43. However, due to the action of the two vertical clamping springs 22, the two linkage racks 44 will remain stationary. Therefore, only when the elastic force formed by the compression of the slow push spring is sufficient to overcome the elastic force of the two vertical clamping springs 22, the continuous rightward movement of the transmission column 36 will realize the rotation of the linkage gear 43, and then realize the mutual separation drive of the two vertically moving clamping frames 20. And the critical point at which the elastic force formed by the compression of the slow push spring is sufficient to overcome the elastic force of the two vertical clamping springs 22 is the point where the two horizontally moving clamping frames 21 can just clamp the lens blank 2, that is, there is an intersection between the state where the two horizontally moving clamping frames 21 clamp the lens blank 2 and the state where the two vertically moving clamping frames 20 clamp the lens blank 2, which can realize the seamless clamping connection of the lens blank 2. When the two horizontally moving clamping frames 21 clamp the lens blank 2, due to the blocking effect of the lens blank 2 on the horizontally moving clamping frames 21, during the process of the transmission column 36 continuing to move to the right, the disc spring 38 will be further compressed, and the two horizontally moving clamping frames 21 will not rotate and approach further, so as to ensure that the transmission column 36 can further move, and can also improve the clamping effect of the horizontally moving clamping frames 21 on the lens blank 2. And when the two vertically moving clamping frames 20 clamp the lens blank 2, the lens blank 2 can be centered in height, and when the two horizontally moving clamping frames 21 clamp the lens blank 2, the lens blank 2 can be centered and adjusted in the horizontal direction. Therefore, after the above-mentioned two horizontally moving clamping frames 21 form a clamp and the two vertically moving clamping frames 20 move away from the lens blank 2, the electric telescopic rod 35 is operated to control the transmission column 36 to move to the left, so that the two vertically moving clamping frames 20 clamp the lens blank 2 again, while the two horizontally moving clamping frames 21 lose their clamping effect. Repeating this process can realize the automatic alignment and centering of the processing working position of the lens blank 2.

[0029] Further, after the lens blank 2 is clamped and positioned, the sliding mounting bracket 18 is pushed backward relative to the workbench 1. Due to the setting of the limit spring 32, when the sliding mounting bracket 18 moves back and forth relative to the workbench 1, the limit spring 32 will experience the limit compression length. When the sliding mounting bracket 18 moves forward relative to the workbench 1, after the limit spring 32 experiences the limit compression length, under the action of the limit spring 32, the sliding mounting bracket 18 has a tendency to be pushed forward to assist the forward movement adjustment of the sliding mounting bracket 18. When the sliding mounting bracket 18 moves backward relative to the workbench 1, after the limit spring 32 experiences the limit compression length, under the action of the limit spring 32, the sliding mounting bracket 18 has a tendency to be pushed backward to assist the backward movement adjustment of the sliding mounting bracket 18, which can also better ensure the pushing effect of the pressing bump 30 on the pressure sensor 29. After the pressure sensor 29 bears the pushing force of the pressing bump 30 and enters the pressure-bearing value, the control circuit responds to supply power to the integrated control circuit of the main shaft motor 5, the first servo motor 11, the second servo motor 12, the electric drive rod 13, the fourth servo motor 15, the third servo motor 14 and the fifth servo motor. Then, the main shaft motor 5 is powered on and runs to drive the rotation of the precision carving tool 6, the first servo motor 11 is powered on and runs to drive the rotation of the rotating base 7, and the second servo motor 12 runs to drive the sliding vertical frame 8 to slide relative to the rotating base 7. With the coordinated operation of the first servo motor 11 and the second servo motor 12, the position adjustment of the precision carving tool 6 in the horizontal direction can be realized. The electric drive rod 13 is powered on and runs to adjust the height of the lifting inner frame 9 relative to the sliding vertical frame 8, and then the position adjustment of the precision carving tool 6 in the height direction is realized. The third servo motor 14 is powered on and runs to drive the rotation of the driving gear 17. Through the meshing transmission of the driving gear 17 and the transmission rack 16, the relative distance between the two precision carving tools 6 is adjusted to facilitate the feeding operation of the two precision carving tools 6 relative to the lens blank 2. The fourth servo motor 15 is powered on and runs to realize the rotational adjustment of the rotation adjustment bar frame 10, so as to achieve the state where the two precision carving tools 6 are arranged at the same horizontal height or arranged vertically relative to each other. When the two precision carving tools 6 are at the same horizontal height, it is necessary to pre-adjust the clamping state of the lens blank 2 to the state of being clamped by the two vertical opposite clamping frames 20. In this state, the two horizontal opposite clamping frames 21 are relatively far away from the lens blank 2, and there is no obstruction on the side of the lens blank 2, which is convenient for the two precision carving tools 6 to process the side of the lens blank 2. And along with the operation of the precision carving tool 6, the fifth servo motor is powered on and runs to drive the rotation of the clamping disc. The rotation of the clamping disc drives the clamped lens blank 2 to rotate, and finally the complete processing of the side of the lens blank 2 is achieved. When the two precision carving tools 6 are arranged one above the other, it is necessary to adjust the clamping state of the lens blank 2 to the state of being clamped by the two horizontal opposite clamping frames 21. In this state, the two vertical opposite clamping frames 20 are relatively far away from the lens blank 2,The upper and lower surfaces of the lens blank 2 are unobstructed, facilitating the processing operations of the two diamond cutting tools 6 on the upper and lower surfaces of the lens blank 2. Along with the operation of the diamond cutting tools 6, during the processing of the diamond cutting tools 6, the first servo motor 11, the second servo motor 12, and the electric drive rod 13 operate in coordination to achieve the feed operation of the diamond cutting tools 6 relative to the lens blank 2 until the complete processing of the lens blank 2 is formed, as shown in the appendix. Figure 18 As shown, the upper and lower arrows indicate the direction in which the sliding mounting bracket 18 moves forward, and the middle vertical hollow arrow indicates that the lower figure is the next state of the upper figure.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engraving machine for optical lens processing, comprising a workbench (1) and a lens blank (2), characterized in that, It further includes a symmetric engraving structure. A rotation and adjustment mounting component is installed on the workbench (1). The symmetric engraving structure includes two moving frames (3). Both of the two moving frames (3) are installed on the rotation and adjustment mounting component. Mounting main shafts (4) are rotatably connected to both of the two moving frames (3). Main shaft motors (5) are installed on both of the two moving frames (3). The two main shaft motors (5) are respectively used for driving the rotation of the two mounting main shafts (4). Precision engraving tools (6) are detachably installed on the two mounting main shafts (4). A clamping structure is installed on the workbench (1), and the clamping structure is used for clamping the lens blank (2).

2. The engraving machine for optical lens processing according to claim 1, wherein The rotation and adjustment mounting component includes a rotating bottom frame (7). A sliding vertical frame (8) is slidably connected to the rotating bottom frame (7). A lifting inner frame (9) is slidably connected inside the sliding vertical frame (8). A rotation and adjustment bar frame (10) is rotatably connected to the lifting inner frame (9). A first servo motor (11), a second servo motor (12), an electric drive rod (13), and a fourth servo motor (15) are respectively installed on the workbench (1), the rotating bottom frame (7), the sliding vertical frame (8), and the lifting inner frame (9). The first servo motor (11) is used for controlling the rotation of the rotating bottom frame (7) relative to the workbench (1). The second servo motor (12) is used for controlling the sliding of the sliding vertical frame (8) relative to the rotating bottom frame (7). The electric drive rod (13) is used for adjusting the height of the lifting inner frame (9) relative to the sliding vertical frame (8). The fourth servo motor (15) is used for adjusting the rotation of the rotation and adjustment bar frame (10) relative to the lifting inner frame (9). Both of the two moving frames (3) are slidably connected to the rotation and adjustment bar frame (10). A third servo motor (14) is installed on the lifting inner frame (9), and the third servo motor (14) is used for the relative adjustment of the two moving frames (3).

3. The engraving machine for optical lens processing according to claim 2, characterized in that, Both of the two moving frames (3) are fixedly connected with transmission racks (16). A drive gear (17) is installed on the output shaft of the third servo motor (14). Both of the two transmission racks (16) are engaged with the drive gear (17).

4. The engraving machine for optical lens processing according to claim 3, characterized in that, The clamping structure includes a sliding mounting frame (18) which is slidably connected to the workbench (1). A limiting component is installed between the sliding mounting frame (18) and the workbench (1). A rotating vertical frame (19) is installed on the sliding mounting frame (18). A linkage component is installed on the rotating vertical frame (19). Two vertically moving clamping frames (20) are slidably connected to the rotating vertical frame (19). Clamping discs are rotatably connected to both of the two vertically moving clamping frames (20). A fifth servo motor is installed on the upper vertically moving clamping frame (20), and the fifth servo motor is used for driving the rotation of the clamping disc on the upper side. Two horizontally moving clamping frames (21) are rotatably connected to the rotating vertical frame (19). The linkage component is used for the linkage adjustment of the two vertically moving clamping frames (20) and the two horizontally moving clamping frames (21). The two vertically moving clamping frames (20) cooperate with the lens blank (2) to form upper and lower clamping, and the two horizontally moving clamping frames (21) cooperate with the lens blank (2) to form front and rear clamping. Both of the two vertically moving clamping frames (20) are fixedly connected with vertical clamping springs (22), and both of the two vertical clamping springs (22) are fixedly connected inside the rotating vertical frame (19). Both of the two horizontally moving clamping frames (21) are connected with horizontal clamping springs (23), and both of the two horizontal clamping springs (23) are connected to the rotating vertical frame (19).

5. The engraving machine for optical lens processing according to claim 4, characterized in that, A rotating connection shaft (24) is fixedly connected to the bottom end of the rotating vertical frame (19). A rotating connection groove is formed on the sliding mounting frame (18), and the rotating connection shaft (24) is rotatably connected in the rotating connection groove. A linkage rod (25) is fixedly connected to the rotating vertical frame (19). A connection shaft (26) is rotatably connected to the linkage rod (25). A traction rod (27) is rotatably connected to the connection shaft (26), and the traction rod (27) is rotatably connected inside the workbench (1). A suspension bracket (28) is fixedly connected inside the workbench (1), and a pressure sensor (29) is installed inside the suspension bracket (28). A pressure contact bump (30) matching the pressure sensor (29) is arranged on the traction rod (27).

6. The engraving machine for optical lens processing according to claim 5, characterized in that, A rotating block (31) is rotatably connected inside the workbench (1). A limiting spring (32) is fixedly connected to the rotating block (31), and a connection block (33) is fixedly connected to the limiting spring (32). The connection block (33) is rotatably connected to the linkage rod (25).

7. An engraving machine for optical lens processing according to claim 6, characterized in that, The linkage assembly includes a gantry side frame (34), the gantry side frame (34) is fixedly connected to the rotating vertical frame (19), an electric telescopic rod (35) is installed on the gantry side frame (34), a transmission column (36) is fixedly connected to the telescopic rod of the electric telescopic rod (35), a double-ear frame (37) is slidably connected to the transmission column (36), a disc spring (38) is connected between the double-ear frame (37) and the transmission column (36), the double-ear frame (37) is rotatably connected to two transmission plates (39), both of the two transmission plates (39) are rotatably connected to an extension frame (40), the two extension frames (40) are respectively fixedly connected to the lateral displacement clamping frame (21), a driving cylinder (41) is slidably connected to the transmission column (36), and a slow-pushing spring is connected between the driving cylinder (41) and the transmission column (36), the driving cylinder (41) is threadedly connected to a threaded cylinder (42), the threaded cylinder (42) is rotatably connected to the rotating vertical frame (19), a linkage gear (43) is fixedly connected to the threaded cylinder (42), the linkage gear (43) meshes with two linkage racks (44), and the two linkage racks (44) are respectively fixedly connected to the two vertical displacement clamping frames (20).

8. The engraving machine for optical lens processing according to claim 7, characterized in that, Two sliding sleeves (45) are fixedly connected to the bottom end of the sliding mounting frame (18), a guide rail (46) is slidably connected in each of the two sliding sleeves (45), and the two guide rails (46) are both fixedly connected in the workbench (1).

9. The engraving machine for optical lens processing according to claim 8, characterized in that, The limiting assembly includes a rotating hand-held ring (47) and two limiting columns (48), the rotating hand-held ring (47) is rotatably connected to two mounting seats (49), the two mounting seats (49) are both fixedly connected to the sliding mounting frame (18), the two limiting columns (48) are both slidably connected to the sliding mounting frame (18), two strip-shaped holes are formed in the rotating hand-held ring (47), two linkage frames (50) are connected to the two strip-shaped holes, the two linkage frames (50) are respectively fixedly connected to the two limiting columns (48), and limiting holes (51) respectively matching the two limiting columns (48) are formed in the two guide rails (46).

10. An engraving machine for optical lens processing according to claim 9, characterized in that, A protective frame (52) is installed on the workbench (1), a sheet metal protective cover (53) is arranged outside the protective frame (52), support legs (54) are fixedly connected to the four corner positions at the bottom end of the workbench (1), and a recycling box (55) is arranged at the bottom end of the workbench (1).

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