Double-sided polishing machine for optical quartz product processing

Abstract

The invention relates to the technical field of polishing, in particular to a double-sided polishing machine for machining optical quartz products, which comprises a biconvex lens workpiece, polishing assemblies are arranged on both sides of the biconvex lens workpiece, and the middle surface of a polishing belt is arc-shaped and is attached to the surface of the biconvex lens workpiece; the clamping assembly comprises an arc-shaped plate, the surfaces of the driving rollers are coated with rubber pads, and the four driving rollers are all attached to the edge of the biconvex lens workpiece and drive the biconvex lens workpiece to rotate; the double-convex-lens polishing device has the beneficial effects that the polishing belts are arranged on the two sides of the double-convex-lens workpiece, the surfaces of the polishing belts are coated with the polishing coatings, the two polishing assemblies clamp and position the double-convex-lens workpiece from the two sides of the double-convex-lens workpiece correspondingly, and the polishing belts on the two sides of the double-convex-lens workpiece can polish the two side faces of the double-convex-lens workpiece correspondingly; therefore, the device not only can polish the two side faces of the biconvex lens workpiece at the same time, but also can adapt to biconvex lens workpieces with different curvatures.

Description

Technical Field

[0001] The invention relates to the technical field of polishing, in particular to a double-sided polishing machine for processing optical quartz products. Background Art

[0002] Optical quartz, also known as optical crystal, has good optical properties such as light transmittance and optical rotation. It can be used to make optical lenses. Lenses can be roughly divided into three categories: plane lenses, convex lenses and concave lenses.

[0003] In the prior art, a Chinese utility model with publication number CN222114652U discloses an optical lens polishing device, in which a clamp is provided to clamp and position the lens, a grinding disc is used for grinding and polishing, and a spray head can spray a lubricant.

[0004] However, at present, when conventional polishing equipment is used to polish a biconvex lens, the two side surfaces thereof need to be polished twice separately, resulting in low polishing efficiency and affecting the product processing speed. To this end, the present invention proposes a double-sided polishing machine for processing optical quartz products to solve the above problem. Summary of the invention

[0005] The purpose of the present invention is to provide a double-sided polishing machine for processing optical quartz products to solve the problem that both side surfaces of the biconvex lens need to be polished separately as mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-sided polishing machine for processing optical quartz products, comprising a double convex lens workpiece, polishing assemblies are arranged on both sides of the double convex lens workpiece, the projections of the two polishing assemblies cross each other in a "cross" shape, the polishing assembly comprises a V-shaped folding frame, a polishing belt is arranged on the outer side of the V-shaped folding frame, the middle surface of the polishing belt is arc-shaped and fits the surface of the double convex lens workpiece, and the middle surface of the polishing belt is coated with a polishing coating;

[0007] A clamping assembly is provided on both sides of one of the polishing assemblies, and the clamping assembly includes an arc-shaped plate. Drive rollers are rotatably installed at both ends of the arc-shaped plate, and the surface of the drive rollers is covered with rubber pads. The four drive rollers are all in contact with the edges of the double convex lens workpiece and drive the double convex lens workpiece to rotate.

[0008] Preferably, a mounting frame is provided at the corner of the V-shaped folding frame, a winding roller driven by a winding motor is rotatably mounted on one side of the mounting frame, the middle part of the V-shaped folding frame is rotatably mounted on the rotating shaft of the winding roller, and reversing rollers are rotatably mounted on both end portions of the V-shaped folding frame. The polishing belt has a triangular structure and is wound around the outside of the reversing roller in a semi-wrapped form, and the two ends of the polishing belt are respectively fixed on both sides of the surface of the winding roller.

[0009] Preferably, the V-shaped folding frame is configured as a double-layer structure with a hollow interior, a guide roller is rotatably installed inside one end of the V-shaped folding frame, the guide roller is located on the inner side of the polishing belt, fixed shafts are fixedly arranged inside both ends of the V-shaped folding frame, an electric telescopic rod is arranged between the two fixed shafts, connecting sleeves are fixed at both ends of the electric telescopic rod, and the connecting sleeves are movably arranged on the outer side of the fixed shafts.

[0010] Preferably, magnet sheets are fixedly installed at the middle parts of both ends of the V-shaped folding frame and at both ends of the mounting frame, the magnet sheets on the mounting frame and the magnet sheets on the V-shaped folding frame repel each other, annular teeth are provided on the surface of the reversing roller, and a strip-shaped tooth plate meshing with the annular teeth is fixed on the inner side of the polishing belt.

[0011] Preferably, a rotating shaft is movably provided at both ends of the arc plate through bearings, one end of the rotating shaft is fixedly connected to the driving roller, and a driven pulley is fixed to the other end of the rotating shaft, and a driving pulley is rotatably installed in the middle of the arc plate, and the two driven pulleys are transmission-connected to the driving pulley through synchronous belts, and a motor frame is fixed in the middle of the arc plate, and a driving motor for driving the driving pulley to rotate is installed on the surface of the motor frame.

[0012] Preferably, a connecting plate is provided on the outer side of the arc-shaped plate, fixing columns are fixed at both ends of the connecting plate, and one end of the fixing column is fixedly connected to the surface of the arc-shaped plate, and threaded holes are movably penetrated at both ends of the connecting plate.

[0013] Preferably, a driving assembly is arranged between the two clamping assemblies, and the driving assembly includes a mounting seat, and a double-axis extension motor is fixedly mounted on both ends of the mounting seat, and a threaded driving rod is fixed on both ends of the double-axis extension motor, and the threads on the two threaded driving rods have opposite rotation directions, and the four threaded driving rods respectively pass through the inner cavities of the four threaded holes.

[0014] Preferably, guide plates are fixed on both sides of both ends of the mounting seat, the length direction of the guide plates is consistent with the length direction of the threaded driving rod, a guide groove is opened through the surface of the guide plate, and the fixed column movably passes through the inner cavity of the guide groove.

[0015] Preferably, one end of the threaded drive rod is provided with a positioning frame through a bearing movable sleeve, the positioning frame is fixedly connected to the end of the guide plate, a driving cylinder is fixed on the mounting frame, an outer tube of the driving cylinder is fixed to the middle of the mounting seat, and the movable end of the driving cylinder is fixedly connected to a mounting frame.

[0016] Preferably, a protective cover is provided on one side of the biconvex lens workpiece, the clamping assembly and the driving assembly are both located inside the protective cover, a stand is fixed to one end of the surface of the protective cover, the other driving cylinder is fixedly mounted on the stand, a recessed groove is provided on the front of the protective cover, and an arc-shaped groove corresponding to the biconvex lens workpiece is provided in the middle of the bottom of the recessed groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides polishing belts on both sides of a double convex lens workpiece, the surfaces of the polishing belts are coated with a polishing coating, two polishing components clamp and position the double convex lens workpiece from both sides of the double convex lens workpiece respectively, four driving rollers are provided at the edge of the double convex lens workpiece, the four driving rollers are close to each other and can clamp and position the double convex lens workpiece from the edge of the double convex lens workpiece, when the driving rollers rotate, the double convex lens workpiece is driven to rotate by friction, at this time, the polishing belts on both sides of the double convex lens workpiece can respectively polish the two side surfaces of the double convex lens workpiece, because the polishing belt itself is a flexible structure, the contact position between the polishing belt and the double convex lens workpiece coincides with the diameter of the double convex lens workpiece, so the device can not only polish the two side surfaces of the double convex lens workpiece at the same time, but also adapt to double convex lens workpieces with different curvatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure installation of the present invention;

[0020] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the separation of the polishing assembly and the double convex lens workpiece structure of the present invention;

[0022] Figure 4 It is an exploded schematic diagram of the polishing assembly structure of the present invention;

[0023] Figure 5 A half-section schematic diagram of the polishing belt structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the installation of the double convex lens workpiece and the clamping assembly structure of the present invention;

[0025] Figure 7 It is a three-dimensional schematic diagram of the structure of the clamping assembly of the present invention;

[0026] Figure 8 It is a three-dimensional schematic diagram of the drive assembly structure of the present invention;

[0027] Fig. 9 It is a schematic diagram of the connection between the threaded driving rod and the connecting plate structure of the present invention;

[0028] Fig.10 It is a three-dimensional schematic diagram of the protective cover structure of the present invention.

[0029] In the figure: 1, double convex lens workpiece; 2, polishing assembly; 21, V-shaped folding frame; 211, guide roller; 212, fixed shaft; 22, polishing belt; 221, strip tooth plate; 222, polishing coating; 23, mounting frame; 231, winding motor; 232, magnet sheet; 24, electric telescopic rod; 241, connecting sleeve; 25, winding roller; 26, reversing roller; 261, annular tooth groove; 3, clamping assembly; 31, arc plate; 32, rotating shaft; 33, driving roller ; 331, rubber pad; 34, driven pulley; 35, synchronous belt; 36, driving pulley; 37, motor frame; 371, driving motor; 38, connecting plate; 381, threaded hole; 382, ​​fixing column; 4, driving assembly; 41, mounting seat; 42, guide plate; 421, guide slide; 43, double-axis extension motor; 44, threaded driving rod; 441, positioning frame; 5, driving cylinder; 6, protective cover; 61, recessed groove; 62, arc-shaped groove; 63, stand. DETAILED DESCRIPTION

[0030] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 10 , the present invention provides a technical solution:

[0032] Embodiment 1, a double-sided polishing machine for processing optical quartz products, including a double convex lens workpiece 1, polishing assemblies 2 are arranged on both sides of the double convex lens workpiece 1, the projections of the two polishing assemblies 2 cross each other in a "cross" shape, and the polishing assembly 2 includes a V-shaped folding frame 21, and the V-shaped folding frame 21 itself can be folded or unfolded, so as to change the distance between the two ends of the V-shaped folding frame 21, such as Figure 3 As shown, the V-shaped folding frame 21 on the left side of the double convex lens workpiece 1 is horizontally distributed, and the V-shaped folding frame 21 on the right side of the double convex lens workpiece 1 is vertically distributed. The two V-shaped folding frames 21 have a total of four ends, and the four ends respectively press the double convex lens workpiece 1 from both sides of the double convex lens workpiece 1, so as to achieve the clamping and positioning of the double convex lens workpiece 1, and after clamping, the four ends cooperate with each other to prevent the double convex lens workpiece 1 from tilting;

[0033] Secondly, a polishing belt 22 is arranged on the outer side of the V-shaped folding frame 21. The middle surface of the polishing belt 22 is arc-shaped and fits the surface of the double convex lens workpiece 1. The polishing belt 22 is made of non-elastic flexible material and can bend itself. A polishing coating 222 is coated on the middle surface of the polishing belt 22. When the V-shaped folding frame 21 is kept in the unfolded state, the inner side of the polishing belt 22 is supported by the end of the V-shaped folding frame 21 and kept in a taut state. At this time, the polishing assembly 2 is close to and pressed on the surface of the double convex lens workpiece 1. The middle part of the polishing belt 22 is squeezed by the raised part of the surface of the double convex lens workpiece 1 and automatically bends and deforms, so as to achieve a close fit with the surface of the double convex lens workpiece 1. When the double convex lens workpiece 1 rotates, the polishing belt 22 can polish the surface of the double convex lens workpiece 1. Since the length direction of the middle part of the polishing belt 22 is along the diameter direction of the double convex lens workpiece 1, as the double convex lens workpiece 1 rotates, each position on the surface of the double convex lens workpiece 1 can be polished;

[0034] Furthermore, a clamping assembly 3 is provided on both sides of a polishing assembly 2, and the clamping assembly 3 includes an arc-shaped plate 31, and driving rollers 33 are rotatably installed at both ends of the arc-shaped plate 31, and the driving rollers 33 are located on the front outer side of the arc-shaped plate 31, and the four driving rollers 33 are all in contact with the edge of the double convex lens workpiece 1 and drive the double convex lens workpiece 1 to rotate, and the driving rollers 33 at both ends of the arc-shaped plate 31 are a group, and the four driving rollers 33 are divided into two groups in total, and are symmetrically distributed on the outer side of the edge of the double convex lens workpiece 1. When the two clamping assemblies 3 are close to each other, the two groups of driving rollers 33 can clamp and position the edge of the double convex lens workpiece 1, so as to avoid the position deviation of the double convex lens workpiece 1 in its own diameter direction, and the rubber pad 331 coated on the surface of the driving roller 33 can be used to increase the friction between the driving roller 33 and the edge of the double convex lens workpiece 1, so as to ensure that the driving roller 33 can drive the double convex lens workpiece 1 to rotate when it rotates, so as to realize that the two polishing belts 22 synchronously polish the two sides of the double convex lens workpiece 1.

[0035] In order to adapt to the double convex lens workpiece 1 of different diameters, the present application also has a mounting frame 23 arranged at the corner of the V-shaped folding frame 21, and a winding roller 25 driven by a winding motor 231 is rotatably mounted on one side of the mounting frame 23, wherein the winding motor 231 is fixed on the mounting frame 23, and the winding roller 25 can only rotate on the mounting frame 23 and will not be separated from it. The middle part of the V-shaped folding frame 21 is rotatably mounted on the rotating shaft of the winding roller 25, so that both ends of the V-shaped folding frame 21 can rotate around the winding roller 25, thereby changing the unfolding angle of the entire V-shaped folding frame 21, and reversing rollers 26 are rotatably mounted at both end portions of the V-shaped folding frame 21. The polishing belt 22 has a triangular structure and is wound around the outer side of the reversing roller 26 in a semi-wrapped form. When the unfolding angle of the V-shaped folding frame 21 itself increases, the distance between the two reversing rollers 26 will become larger. At this time, the middle part of the polishing belt 22 can be tightened, and the two ends of the polishing belt 22 are respectively fixed on both sides of the surface of the winding roller 25, such as Figure 5 As shown, when the winding roller 25 rotates, the two ends of the polishing belt 22 can be synchronously wound up. By changing the unfolding angle of the V-shaped folding frame 21 and the winding or unwinding of the polishing belt 22 by the winding roller 25, the length of the curved part in the middle of the polishing belt 22 can be changed, thereby adapting to double convex lens workpieces 1 of different diameters.

[0036] In order to drive the V-shaped folding frame 21 to unfold or fold, the V-shaped folding frame 21 of the present application is set to a double-layer structure with a hollow interior. A guide roller 211 is rotatably installed inside one end of the V-shaped folding frame 21. The guide roller 211 is located on the inner side of the polishing belt 22. Figure 4 As shown, the guide roller 211 supports the polishing belt 22 from the inner side of the polishing belt 22, and the guide roller 211 itself can rotate, which can reduce the friction between the polishing belt 22 and the guide roller 211, and ensure that the winding roller 25 can smoothly wind or unwind the polishing belt 22 when rotating. Fixed shafts 212 are fixedly arranged inside both ends of the V-shaped folding frame 21. The fixed shafts 212 can be used to fix the double-layer structure of the V-shaped folding frame 21. At the same time, an electric telescopic rod 24 is arranged between the two fixed shafts 212. The two ends of the electric telescopic rod 24 are fixed with connecting sleeves 241, and the connecting sleeves 241 are movably sleeved on the outer side of the fixed shaft 212. Figure 4 It can be seen that when the electric telescopic rod 24 is extended or retracted, it can drive the two ends of the V-shaped folding frame 21 to unfold or fold, thereby changing the overall angle of the V-shaped folding frame 21. In addition, the polishing belt 22 is located on the outer side of the V-shaped folding frame 21, and the electric telescopic rod 24 is located on the inner side of the V-shaped folding frame 21, so the two will not interfere with each other. The guide roller 211 is located closer to the middle rotation point of the V-shaped folding frame 21 than the fixed shaft 212. Therefore, after the guide roller 211 supports the inner side of the polishing belt 22, it can also avoid interference between the bending part of the polishing belt 22 and the fixed shaft 212.

[0037] In order to avoid the mutual misalignment between the polishing belt 22 and the reversing roller 26, the present application also has magnet pieces 232 fixedly installed at the middle of both ends of the V-shaped folding frame 21 and at both ends of the mounting frame 23. The magnet pieces 232 on the mounting frame 23 and the magnet pieces 232 on the V-shaped folding frame 21 repel each other. Figure 4 As shown, the arrangement of the magnet sheet 232 is mainly used to ensure that the V-shaped folding frame 21 maintains a symmetrical distribution on the outer side of the mounting frame 23, and the opening direction of the V-shaped folding frame 21 will not change due to rotation, that is, to ensure that the opening of the V-shaped folding frame 21 can face the surface of the double convex lens workpiece 1 when the V-shaped folding frame 21 is unfolded or folded, and an annular tooth groove 261 is provided on the surface of the reversing roller 26, and the strip tooth plate 221 is composed of a plurality of independent tooth blocks, and the plurality of tooth blocks will not interfere with each other and affect the bending of the polishing belt 22 at this position, and a strip tooth plate 221 meshing with the annular tooth groove 261 is fixed on the inner side surface of the polishing belt 22, and when the strip tooth plate 221 is clamped and meshed with the annular tooth groove 261, the annular tooth groove 261 can limit the polishing belt 22 in its own axial direction to avoid mutual misalignment between the polishing belt 22 and the reversing roller 26.

[0038] In order to rotate the driving roller 33, the present application also has a rotating shaft 32 provided at both ends of the arc plate 31 through a bearing, and one end of the rotating shaft 32 is fixedly connected to the driving roller 33. Figure 7 As shown, the rotating shaft 32 can only rotate at the end of the arc plate 31 without being misaligned or deviated therefrom. Since the driving roller 33 is located on the front outer side of the arc plate 31, the double convex lens workpiece 1 and the arc plate 31 are respectively located on two planes and will not interfere with each other, thereby avoiding the arc plate 31 and the double convex lens workpiece 1 from colliding and causing damage to the edge of the double convex lens workpiece 1. A driven pulley 34 is fixed to the other end of the rotating shaft 32, and a driving pulley 36 is rotatably installed in the middle of the arc plate 31. The two driven pulleys 34 are connected to the driving pulley 36 through a synchronous belt 35. The driving pulley 36 When rotating, it can drive the driven pulleys 34 at both ends of the arc plate 31 to rotate synchronously in the same direction, thereby ensuring that the two driving rollers 33 at both ends of the arc plate 31 can rotate synchronously in the same direction, so as to easily drive the double convex lens workpiece 1 to rotate. In addition, in order to avoid slipping between the driven pulley 34, the synchronous belt 35 and the active pulley 36 in sequence, the synchronous belt 35 of the device has teeth on the inside, and the driven pulley 34 and the active pulley 36 are provided with tooth grooves that mesh with the teeth. In addition, a motor frame 37 is fixed in the middle of the arc plate 31, and a driving motor 371 that drives the active pulley 36 to rotate is installed on the surface of the motor frame 37. Figure 7As shown, the motor frame 37 and the arc plate 31 are fixedly connected to each other by multiple rods, and a gap is left between the two, and the gap can allow the driving pulley 36 and the synchronous belt 35 to work normally. The setting of the driving motor 371 is mainly used to drive the driving pulley 36 to rotate, thereby realizing the rotation of the driving roller 33.

[0039] In order to drive the clamping assembly 3 to move, the present application also has a connecting plate 38 disposed on the outer side of the arc plate 31, both ends of the connecting plate 38 are fixed with fixing columns 382, ​​and one end of the fixing column 382 is fixedly connected to the surface of the arc plate 31, such as Figure 7 As shown, the setting of the fixed column 382 can avoid mutual interference between the connecting plate 38 and the synchronous belt 35. Threaded holes 381 are movably penetrated at both ends of the connecting plate 38. A driving component 4 is arranged between the two clamping components 3. The driving component 4 includes a mounting seat 41. A double-axis extension motor 43 is fixedly installed at both ends of the mounting seat 41. Threaded drive rods 44 are fixed at both ends of the double-axis extension motor 43. The threads on the two threaded drive rods 44 rotate in opposite directions. The four threaded drive rods 44 respectively penetrate the inner cavities of the four threaded holes 381. When the double-axis extension motor 43 is working, it can drive the threaded drive rods 44 at both ends to rotate synchronously in the same direction. Fig. 9 As shown, when the threaded driving rod 44 rotates, it can drive the connecting plate 38 to move along the length direction of the threaded driving rod 44 by cooperating with the threaded hole 381, thereby driving the two clamping components 3 to move closer to or away from each other. By changing the spacing between the two clamping components 3, the device can clamp and position the double convex lens workpiece 1 of different diameters from the edge;

[0040] Before polishing the biconvex lens workpiece 1, the device first drives the two clamping assemblies 3 to move away from each other, and the two polishing assemblies 2 to move away from each other as well, then places the biconvex lens workpiece 1 between the two polishing assemblies 2 and is located between the two clamping assemblies 3, then moves the two polishing assemblies 2 closer to each other, and the two polishing assemblies 2 preliminarily clamp and position the biconvex lens workpiece 1 from both sides of the biconvex lens workpiece 1, to ensure that the biconvex lens workpiece 1 and the four driving rollers 33 are located in the same plane, and then starts the dual-axis extension motor 43 to drive the two clamping assemblies 3 to move synchronously and approach each other, until the four driving rollers 33 clamp and position the biconvex lens workpiece 1 from the edge of the biconvex lens workpiece 1, at which time the position of the biconvex lens workpiece 1 is fixed and will not shift, and the driving motor 371 is started to drive the driving roller 33 to rotate, and the driving roller 33 offsets the friction between the surface of the biconvex lens workpiece 1 and the polishing belt 22 through the friction force generated between the rubber pad 331 and the edge of the biconvex lens workpiece 1 and drives the biconvex lens workpiece 1 to rotate, thereby enabling the two polishing belts 22 to synchronously polish the two sides of the biconvex lens workpiece 1.

[0041] In order to prevent the threaded drive rod 44 from bending and deforming, the present application also has guide plates 42 fixed on both sides of the mounting seat 41. The length direction of the guide plate 42 is consistent with the length direction of the threaded drive rod 44. A guide slot 421 is opened through the surface of the guide plate 42. The fixed column 382 movably penetrates the inner cavity of the guide slot 421. Figure 6 and Figure 8 It can be known that the setting of the guide slot 421 is mainly used to guide the movement of the fixing column 382, ​​so as to reduce the torque applied to the threaded driving rod 44 and avoid bending and deformation of the threaded driving rod 44.

[0042] In order to position the end of the positioning frame 441, the present application also has a positioning frame 441 at one end of the threaded drive rod 44 through a bearing movable sleeve, the positioning frame 441 is fixedly connected to the end of the guide plate 42, and the positioning frame 441 is mainly used to install and position the end of the threaded drive rod 44 to prevent the threaded drive rod 44 from shaking and deforming. A driving cylinder 5 is fixed on the mounting frame 23, the outer tube of a driving cylinder 5 is fixed to the middle of the mounting seat 41, and the movable end of the driving cylinder 5 is fixedly connected to a mounting frame 23, combined with Figure 8 and Figure 2 As shown in the figure, the driving cylinder 5 can be used to drive the polishing assembly 2 at its front end to move, to move closer to or away from the double convex lens workpiece 1. Since the polishing assembly 2 is arranged vertically, it can be installed in Figure 8 The inner side of the mounting seat 41 is shown.

[0043] In order to install another polishing assembly 2, the present application also has a protective cover 6 disposed on one side of the double convex lens workpiece 1, and the clamping assembly 3 and the driving assembly 4 are both located inside the protective cover 6. Figure 1 and Fig.10 As shown, the protective cover 6 is mainly used to protect the clamping assembly 3 and the driving assembly 4, and a polishing assembly 2 is also located inside the protective cover 6. A stand 63 is fixed at one end of the surface of the protective cover 6, and another driving cylinder 5 is fixedly mounted on the stand 63. When the other driving cylinder 5 is extended or retracted, it can drive another polishing assembly 2 to move. A recessed groove 61 is provided on the front of the protective cover 6, and an arc-shaped groove 62 corresponding to the double convex lens workpiece 1 is provided in the middle of the bottom of the recessed groove 61. The arc-shaped groove 62 is mainly used to avoid collision between the raised part on the surface of the double convex lens workpiece 1 and the protective cover 6.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-sided polishing machine for processing optical quartz products, comprising a double convex lens workpiece (1), characterized in that: Polishing assemblies (2) are arranged on both sides of the biconvex lens workpiece (1), and the projections of the two polishing assemblies (2) intersect each other in a "cross" shape. The polishing assemblies (2) include a V-shaped folding frame (21), and a polishing belt (22) is arranged on the outer side of the V-shaped folding frame (21). The middle surface of the polishing belt (22) is arc-shaped and fits the surface of the biconvex lens workpiece (1), and the middle surface of the polishing belt (22) is coated with a polishing coating (222); A clamping assembly (3) is provided on both sides of one of the polishing assemblies (2), the clamping assembly (3) comprising an arc-shaped plate (31), driving rollers (33) are rotatably mounted on both ends of the arc-shaped plate (31), the surface of the driving roller (33) is coated with a rubber pad (331), and the four driving rollers (33) are all in contact with the edge of the biconvex lens workpiece (1) and drive the biconvex lens workpiece (1) to rotate.

2. The double-sided polishing machine for optical quartz product processing according to claim 1, characterized in that: A mounting frame (23) is provided at a corner of the V-shaped folding frame (21); a winding roller (25) driven by a winding motor (231) is rotatably mounted on one side of the mounting frame (23); a middle portion of the V-shaped folding frame (21) is rotatably mounted on a rotating shaft of the winding roller (25); reversing rollers (26) are rotatably mounted at both ends of the V-shaped folding frame (21); the polishing belt (22) is in a triangular structure and is wound around the outer side of the reversing roller (26) in a semi-wrapped form; and the two ends of the polishing belt (22) are respectively fixed on both sides of the surface of the winding roller (25).

3. The double-sided polishing machine for optical quartz product processing according to claim 2, characterized in that: The V-shaped folding frame (21) is configured as a double-layer structure with a hollow interior. A guide roller (211) is rotatably mounted inside one end of the V-shaped folding frame (21), and the guide roller (211) is located on the inner side of the polishing belt (22). Fixed shafts (212) are fixedly arranged inside both ends of the V-shaped folding frame (21), an electric telescopic rod (24) is arranged between the two fixed shafts (212), and connecting sleeves (241) are fixedly arranged at both ends of the electric telescopic rod (24), and the connecting sleeves (241) are movably sleeved on the outer side of the fixed shaft (212).

4. The double-sided polishing machine for optical quartz product processing according to claim 3, characterized in that: Magnet sheets (232) are fixedly mounted at the middle of both ends of the V-shaped folding frame (21) and at both ends of the mounting frame (23); the magnet sheets (232) on the mounting frame (23) and the magnet sheets (232) on the V-shaped folding frame (21) repel each other; an annular tooth groove (261) is formed on the surface of the reversing roller (26); and a strip-shaped tooth plate (221) meshing with the annular tooth groove (261) is fixed on the inner side surface of the polishing belt (22).

5. The double-sided polishing machine for optical quartz product processing according to claim 4, characterized in that: A rotating shaft (32) is movably provided at both ends of the arc plate (31) through bearings, one end of the rotating shaft (32) is fixedly connected to a driving roller (33), and a driven pulley (34) is fixedly provided at the other end of the rotating shaft (32). A driving pulley (36) is rotatably installed in the middle of the arc plate (31), and both of the driven pulleys (34) are in transmission connection with the driving pulley (36) through a synchronous belt (35). A motor frame (37) is fixed in the middle of the arc plate (31), and a driving motor (371) for driving the driving pulley (36) to rotate is installed on the surface of the motor frame (37).

6. The double-sided polishing machine for optical quartz product processing according to claim 5, characterized in that: A connecting plate (38) is provided on the outer side of the arc-shaped plate (31), and fixing columns (382) are fixed at both ends of the connecting plate (38), and one end of the fixing column (382) is fixedly connected to the surface of the arc-shaped plate (31), and threaded holes (381) are movably penetrated at both ends of the connecting plate (38).

7. The double-sided polishing machine for optical quartz product processing according to claim 6, characterized in that: A driving assembly (4) is arranged between the two clamping assemblies (3), and the driving assembly (4) comprises a mounting seat (41), and a double-axis extension motor (43) is fixedly mounted at both ends of the mounting seat (41), and a threaded driving rod (44) is fixedly mounted at both ends of the double-axis extension motor (43), and the threads on the two threaded driving rods (44) are rotated in opposite directions, and the four threaded driving rods (44) respectively penetrate the inner cavities of the four threaded holes (381).

8. The double-sided polishing machine for optical quartz product processing according to claim 7, characterized in that: Guide plates (42) are fixed on both sides of both ends of the mounting seat (41), the length direction of the guide plate (42) is consistent with the length direction of the threaded driving rod (44), and a guide groove (421) is penetrated through the surface of the guide plate (42), and the fixed column (382) movably penetrates the inner cavity of the guide groove (421).

9. The double-sided polishing machine for optical quartz product processing according to claim 8, characterized in that: One end of the threaded drive rod (44) is provided with a positioning frame (441) via a bearing movable sleeve, the positioning frame (441) is fixedly connected to the end of the guide plate (42), a driving cylinder (5) is fixed on the mounting frame (23), an outer cylinder of the driving cylinder (5) is fixed to the middle of the mounting seat (41), and a movable end of the driving cylinder (5) is fixedly connected to a mounting frame (23).

10. The double-sided polishing machine for optical quartz product processing according to claim 9, characterized in that: A protective cover (6) is provided on one side of the biconvex lens workpiece (1); the clamping assembly (3) and the driving assembly (4) are both located inside the protective cover (6); a stand (63) is fixed on one end of the surface of the protective cover (6); the other driving cylinder (5) is fixedly mounted on the stand (63); a recessed groove (61) is provided on the front of the protective cover (6); and an arc-shaped groove (62) corresponding to the biconvex lens workpiece (1) is provided in the middle of the bottom of the recessed groove (61).

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