Arcuate lens polishing machine

Abstract

The present application relates to arc-shaped lens polishing machine tool, including positioning sleeve, the positioning sleeve is connected with the rotation driving mechanism of driving positioning sleeve rotation, the lens positioning mechanism is arranged on the positioning sleeve, one side of the positioning sleeve is provided with first telescopic mechanism, the other side is provided with second telescopic mechanism, the center line of first telescopic mechanism and second telescopic mechanism intersects with the center line of positioning sleeve;The concave polishing strip is arranged on the first telescopic mechanism, and the convex polishing strip is arranged on the second telescopic mechanism.The present application can be used for the polishing of large-diameter lens, and the concave surface and the convex surface of the lens can be polished simultaneously, and the polishing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of machining machine tools, and particularly relates to an arc-shaped lens polishing machine tool. BACKGROUND

[0002] In the lens production process, the surface of the lens needs to be polished to improve the surface precision. An application No. CN202311436733.5 discloses an arc-shaped lens polishing device, which can turn over the arc-shaped lens to facilitate polishing of the inner and outer surfaces of the lens. However, this polishing device is only suitable for batch processing of small-sized arc-shaped lenses. When the size of the lens is large, for example, the diameter of the lens is greater than 100 mm, it is difficult to stably position the lens by using only a suction cup, and the polishing quality cannot be guaranteed. SUMMARY

[0003] The technical problem to be solved by the application is to provide an arc-shaped lens polishing machine tool suitable for polishing of large-diameter arc-shaped lenses.

[0004] To solve the above problems, the technical scheme adopted by the application is as follows: an arc-shaped lens polishing machine tool, comprising a positioning sleeve, wherein the positioning sleeve is connected with a rotation driving mechanism for driving the rotation of the positioning sleeve, a lens positioning mechanism is arranged on the positioning sleeve, a first telescopic mechanism is arranged on one side of the positioning sleeve, and a second telescopic mechanism is arranged on the other side of the positioning sleeve, the center lines of the first telescopic mechanism and the second telescopic mechanism intersect with the center line of the positioning sleeve, a concave polishing strip is arranged on the first telescopic mechanism, and a convex polishing strip is arranged on the second telescopic mechanism.

[0005] Further, the lens positioning mechanism comprises at least three positioning columns uniformly arranged on the inner wall of the positioning sleeve, the length direction of each positioning column is consistent with the radial direction of the positioning sleeve, a fixed clamping block and a movable clamping block are arranged on each positioning column, the fixed clamping block is fixedly connected with the positioning column, the movable clamping block is in sliding fit with the positioning column, and the movable clamping block and the fixed clamping block have an arc-shaped clamping spacing therebetween, and the movable clamping block is connected with the fixed clamping block through a locking piece.

[0006] Further, the positioning column and the positioning sleeve are detachably connected.

[0007] A first positioning block is fixedly arranged on the first telescopic mechanism, and the concave polishing strip is detachably mounted on the first positioning block; a second positioning block is fixedly arranged on the second telescopic mechanism, and the convex polishing strip is detachably mounted on the second positioning block.

[0008] The first telescopic mechanism and the second telescopic mechanism are both hingedly mounted on a mounting frame, and the first telescopic mechanism and the second telescopic mechanism are both connected with an angle adjusting mechanism.

[0009] Further, the positioning sleeve is rotatably installed in the mounting sleeve, and the outer wall of the positioning sleeve is provided with a driven gear, the rotating drive mechanism comprises a motor, the main shaft of the motor is connected with a driving gear, and the driving gear is engaged with the driven gear.

[0010] Further, the center line of the positioning sleeve is horizontal, the concave polishing strip and the convex polishing strip extend from top to bottom, the concave polishing strip and the convex polishing strip are provided with arc polishing surfaces, the two side edges of the polishing surfaces are provided with first grooves, the outer side edges of the groove bottoms of the first grooves are provided with flexible blocking layers, the polishing surfaces are provided with second grooves, the inner parts of the lower ends of the concave polishing strip and the convex polishing strip are provided with dust collecting cavities, and the lower ends of the groove bottoms of the first grooves and the second grooves are communicated with the dust collecting cavities.

[0011] Further, the inner parts of the upper ends of the concave polishing strip and the convex polishing strip are provided with air inlet cavities, the air inlet cavities are connected with air inlet mechanisms, the upper ends of the first grooves and the second grooves are communicated with the air inlet cavities, and the side walls of the dust collecting cavities are provided with a plurality of air outlet filter holes.

[0012] Further, the first telescopic mechanism is fixedly provided with a first positioning block, and the concave polishing strip is detachably installed in the first positioning block; the second telescopic mechanism is fixedly provided with a second positioning block, and the convex polishing strip is detachably installed in the second positioning block.

[0013] The width of the first positioning block is greater than the width of the concave polishing strip, the width of the second positioning block is greater than the width of the convex polishing strip, the side edges of the first positioning block and the second positioning block are provided with a plurality of air blowing heads, the air blowing directions of the air blowing heads are obliquely downward, and the air blowing heads are connected with air blowing mechanisms.

[0014] The lower part of the positioning sleeve is provided with a dust collecting cover, and the dust collecting cover is connected with the dust collecting bag through the air suction mechanism.

[0015] Further, the side surface of the first positioning block and the second positioning block is provided with a mounting groove, the concave polishing strip and the convex polishing strip each comprises a polishing part and a mounting part, the mounting part is located in the mounting groove, and the mounting part and the mounting groove are in sliding fit in the width direction of the mounting groove; a spring is arranged between one side edge of the mounting part and the side wall of the mounting groove, the other side edge of the mounting part is provided with a pin hole, a bolt in sliding fit with the pin hole is arranged in the pin hole, and the bolt penetrates the side wall of the mounting groove; a cylindrical cavity is arranged in the first positioning block and the second positioning block, the cylindrical cavity is divided into a constant pressure cavity and a polishing agent storage cavity by a piston, an air pressure sensor is arranged in the constant pressure cavity, and the constant pressure cavity is connected with an air pressure control mechanism, and the air pressure sensor and the air pressure control mechanism are connected with a controller; a slidable sealing plate is arranged at the port of the polishing agent storage cavity, the sealing plate is connected with a communication plate, a plurality of polishing agent adding through holes are arranged on the communication plate, and the communication plate is fixedly connected with the mounting part; the communication plate and the spring are located at the same side edge of the mounting part.

[0016] Further, the sealing plate, the communication plate, the mounting part and the polishing part are integrally formed.

[0017] The beneficial effects of the present application are: the lens positioning mechanism is used to clamp and position the lens with a circular contour and arc-shaped two side surfaces, so that the lens remains stable. During polishing, the rotating drive mechanism drives the positioning sleeve to rotate, the positioning sleeve drives the lens to rotate, then the first telescopic mechanism and the second telescopic mechanism push the concave polishing strip and the convex polishing strip to move, when the concave polishing strip and the convex polishing strip are attached to the concave surface and the convex surface of the lens, the concave polishing strip and the convex polishing strip can polish the lens.

[0018] The present application can stably clamp and position the lens with a large diameter, can be used for polishing the lens with a large size, and can polish the concave surface and the convex surface of the lens at the same time, thereby improving the polishing efficiency. During polishing, the concave polishing strip and the convex polishing strip can be located at the two side surfaces of the same part of the lens, so that the polishing pressure of the concave polishing strip on the lens and the polishing pressure of the convex polishing strip on the lens are offset, the whole lens is balanced, which is beneficial to the stability of the lens, reduces vibration, and prevents damage to the lens. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a front view schematic diagram of embodiment one of the present application;

[0020] Figure 2 is a front view schematic diagram of embodiment two of the present application;

[0021] Figure 3 is Figure 2 a side view schematic diagram of embodiment one of the present application;

[0022] Figure 4 is Figure 3 a sectional view schematic diagram of B-B of embodiment one of the present application;

[0023] Figure 5 is Figure 3 a sectional view of C-C in FIG. 1;

[0024] Figure 6 is Figure 3 a sectional view of D-D in FIG. 2;

[0025] Figure 7 is a schematic view of the installation of the concave polishing strip and convex polishing strip of Example Three;

[0026] The drawing mark: 1-positioning sleeve; 2-rotary drive mechanism; 3-first telescopic mechanism; 4-second telescopic mechanism; 5-first positioning block; 6-concave polishing strip; 61-polishing part; 62-mounting part; 63-spring; 64-latch; 65-piston; 66-constant pressure cavity; 67-polish storage cavity; 68-air pressure sensor; 69-air pressure control mechanism; 610-controller; 611-sealing plate; 612-communication plate; 613-polish adding through hole; 7-second positioning block; 8-convex polishing strip; 9-positioning column; 10-fixed clamp block; 11-movable clamp block; 12-locking piece; 13-mounting frame; 14-angle adjusting mechanism; 15-mounting sleeve; 16-driven gear; 17-driving gear; 18-first groove; 19-barrier layer; 20-second groove; 21-dust collection cavity; 22-air inlet cavity; 23-air inlet mechanism; 24-blowing head; 25-blowing mechanism; 26-dust collection cover; 27-suction mechanism; 28-dust removal cloth bag. DETAILED DESCRIPTION

[0027] The application is further illustrated below in combination with the drawings and examples.

[0028] Example One

[0029] The arc-shaped lens polishing machine tool of the present embodiment is used for polishing a lens with a circular profile, one side being concave and the other side being convex, uniform thickness and regular shape, and the specific structure is as shown in Figure 1As shown, including positioning sleeve 1, positioning sleeve 1 is a circular sleeve, positioning sleeve 1 is connected with rotation driving mechanism 2 for driving positioning sleeve 1 to rotate. The lens positioning mechanism is arranged on the positioning sleeve 1, and the lens positioning mechanism is used for clamping and positioning the edge of the lens. The first telescopic mechanism 3 is arranged on one side of the positioning sleeve 1, and the second telescopic mechanism 4 is arranged on the other side. The center lines of the first telescopic mechanism 3 and the second telescopic mechanism 4 intersect with the center line of the positioning sleeve 1. The concave polishing strip 6 is arranged on the first telescopic mechanism 3, and the convex polishing strip 8 is arranged on the second telescopic mechanism 4. The concave polishing strip 6 and the convex polishing strip 8 are respectively used for polishing the concave surface and the convex surface of the lens. The concave polishing strip 6 and the convex polishing strip 8 are both provided with an arc-shaped polishing surface, which can be fitted to the concave surface or the convex surface of the lens. After the lens is positioned on the positioning sleeve 1 by the lens positioning mechanism, the center line of the lens coincides with the center line of the positioning sleeve 1, the center lines of the first telescopic mechanism 3 and the second telescopic mechanism 4 intersect with the center line of the positioning sleeve 1, and the angles of the first telescopic mechanism 3 and the second telescopic mechanism 4 are set according to the spherical center positions corresponding to the concave surface and the convex surface of the lens, so that the center lines of the first telescopic mechanism 3 and the second telescopic mechanism 4 can pass through the spherical center positions. When the concave polishing strip 6 and the convex polishing strip 8 are moved by the first telescopic mechanism 3 and the second telescopic mechanism 4, the movement of the concave polishing strip 6 and the convex polishing strip 8 is opposite to the radial direction of the concave surface or the convex surface, so that the polishing surfaces of the concave polishing strip 6 and the convex polishing strip 8 can be tightly fitted to the concave surface and the convex surface respectively.

[0030] When the arc-shaped lens is polished by the embodiment, the arc-shaped lens is first installed on the lens positioning mechanism, then the positioning sleeve 1 is uniformly rotated by the rotation driving mechanism 2, and the arc-shaped lens is rotated by the positioning sleeve 1. The concave polishing strip 6 and the convex polishing strip 8 are driven by the first telescopic mechanism 3 and the second telescopic mechanism 4 respectively to move towards the lens. When the concave polishing strip 6 and the convex polishing strip 8 respectively contact the concave surface and the convex surface of the lens, the lens can be polished by the concave polishing strip 6 and the convex polishing strip 8.

[0031] In the present application, the positioning sleeve 1 has a large inner diameter, which can position the arc-shaped lens with a large size, such as an arc-shaped lens with a diameter greater than 100 mm. During polishing, the concave polishing strip 6 and the convex polishing strip 8 polish simultaneously, which has high polishing efficiency. In addition, by setting the positions of the first telescopic mechanism 3 and the second telescopic mechanism 4, the concave polishing strip and the convex polishing strip can be located on the two side surfaces of the same part of the lens. The polishing pressure of the concave polishing strip on the lens and the polishing pressure of the convex polishing strip on the lens are offset to each other, the whole lens is balanced, the local lens is prevented from being subjected to uneven stress caused by polishing pressure, the lens is kept stable, the vibration is reduced, and the lens is prevented from being damaged.

[0032] The lens positioning mechanism comprises at least three positioning columns 9 evenly arranged on the inner wall of the positioning sleeve 1, the length direction of the positioning column 9 is consistent with the radial direction of the positioning sleeve 1, a fixed clamping block 10 and a movable clamping block 11 are arranged on each positioning column 9, the fixed clamping block 10 is fixedly connected with the positioning column 9, the movable clamping block 11 is in sliding fit with the positioning column 9, that is, the movable clamping block 11 can slide along the radial direction of the positioning sleeve 1, specifically, a dovetail-shaped sliding groove can be arranged on the positioning column 9, and a dovetail-shaped sliding block is arranged at one end of the movable clamping block 11, the sliding block is located in the sliding groove and is in sliding fit with the sliding groove. The movable clamping block 11 and the fixed clamping block 10 have an arc-shaped clamping interval, the side of the movable clamping block 11 facing the clamping interval is provided with an arc-shaped convex clamping surface, the convex clamping surface can be attached to the convex surface of the lens edge, and the side of the fixed clamping block 10 facing the clamping interval is provided with an arc-shaped concave clamping surface, the concave clamping surface can be attached to the concave surface of the lens edge. The movable clamping block 11 is connected with the fixed clamping block 10 through a locking piece 12.

[0033] When the lens is positioned, the movable clamping block 11 is first slid to move away from the fixed clamping block 10; then the lens is moved so that the concave edge of the lens is attached to the concave clamping surface of each fixed clamping block 10, and then the movable clamping block 11 is slid to move towards the fixed clamping block 10, when the movable clamping block 11 contacts the lens, the locking piece 12 is used to lock and connect the movable clamping block 11 and the fixed clamping block 10, and provide locking force for clamping the lens. The locking piece 12 can be a screw, which is screwed with the fixed clamping block 10 after penetrating through the movable clamping block 11; in addition, the locking piece 12 can also be a screw column fixedly arranged on the fixed clamping block 10, the axial direction of the screw column is consistent with the sliding direction of the movable clamping block 11, a through hole is arranged on the movable clamping block 11, when the movable clamping block 11 moves towards the fixed clamping block 10, the screw column can penetrate through the through hole of the movable clamping block 11, at this time, a nut which is screwed with the screw column is installed on the end of the screw column, and the nut is locked. In order to prevent the pressure of the movable clamping block 11 and the fixed clamping block 10 from damaging the lens, elastic protective pads can be arranged on the convex clamping surface and the convex clamping surface, and the elastic protective pads can be rubber pads and the like.

[0034] The positioning column 9 and the positioning sleeve 1 are detachably connected, specifically, the positioning column 9 can be connected with the positioning sleeve 1 through a bolt.

[0035] The first positioning block 5 is fixedly arranged on the first telescopic mechanism 3, and the concave polishing strip 6 is detachably installed on the first positioning block 5. The second positioning block 7 is fixedly arranged on the second telescopic mechanism 4, and the convex polishing strip 8 is detachably installed on the second positioning block 7. Specifically, the concave polishing strip 6 can be connected with the first positioning block 5 through a screw, and the convex polishing strip 8 can be connected with the second positioning block 7 through a screw.

[0036] The first telescopic mechanism 3 and the second telescopic mechanism 4 are both hinged to the mounting frame 13. The first telescopic mechanism 3 and the second telescopic mechanism 4 are both connected to an angle adjustment mechanism 14. The first telescopic mechanism 3, the second telescopic mechanism 4 and the angle adjustment mechanism 14 can be equipment such as a cylinder or a hydraulic cylinder. One end of the angle adjustment mechanism 14 is hinged to the mounting frame 13 and the other end is hinged to the first telescopic mechanism 3 or the second telescopic mechanism 4. The angle adjustment mechanism 14 can adjust the angle of the first telescopic mechanism 3 and the second telescopic mechanism 4.

[0037] In this invention, when different sizes of lenses need to be processed, the original positioning post 9, convex polishing strip 8, and concave polishing strip 6 are removed. According to the size of the new lens, positioning post 9, movable clamping block 11, fixed clamping block 10, convex polishing strip 8, and concave polishing strip 6 adapted to the size of the lens are prepared. After assembling the movable clamping block 11 and fixed clamping block 10 onto the positioning post 9, the positioning post 9 is installed as a whole onto the positioning sleeve 1. The new convex polishing strip 8 and concave polishing strip 6 are installed onto the second positioning block 7 and the first positioning block 5, respectively. Then, the angle adjustment mechanism 14 is used to adjust the angle of the first telescopic mechanism 3 and the second telescopic mechanism 4 so that the center line of the first telescopic mechanism 3 and the second telescopic mechanism 4 can pass through the center of the sphere corresponding to the side of the lens.

[0038] As can be seen, the present invention can polish curved lenses of various sizes.

[0039] The positioning sleeve 1 is rotatably mounted on the mounting sleeve 15, which can be fixed on the mounting bracket 13. The mounting sleeve 15 has a circular inner cavity, and one end of the positioning sleeve 1 is mounted in the inner cavity of the mounting sleeve 15 via a bearing. A driven gear 16 is fixedly provided on the outer wall of the positioning sleeve 1. The rotation drive mechanism 2 includes a motor, and the main shaft of the motor is connected to a driving gear 17, which meshes with the driven gear 16. The motor drives the positioning sleeve 1 to rotate through the driving gear 17 and the driven gear 16.

[0040] Example 2

[0041] The curved lens polishing machine tool in this embodiment, such as Figure 2 As shown, it includes a positioning sleeve 1, which is connected to a rotation drive mechanism 2 for driving the positioning sleeve 1 to rotate. A lens positioning mechanism is provided on the positioning sleeve 1. A first telescopic mechanism 3 is provided on one side of the positioning sleeve 1, and a second telescopic mechanism 4 is provided on the other side. The center lines of the first telescopic mechanism 3 and the second telescopic mechanism 4 intersect with the center line of the positioning sleeve 1. A concave polishing strip 6 is provided on the first telescopic mechanism 3, and a convex polishing strip 8 is provided on the second telescopic mechanism 4.

[0042] The lens positioning mechanism includes at least three positioning posts 9 evenly arranged on the inner wall of the positioning sleeve 1. The length direction of the positioning posts 9 is consistent with the radial direction of the positioning sleeve 1. Each positioning post 9 is provided with a fixed clamping block 10 and a movable clamping block 11. The fixed clamping block 10 is fixedly connected to the positioning post 9, and the movable clamping block 11 is slidably engaged with the positioning post 9. There is an arc-shaped clamping gap between the movable clamping block 11 and the fixed clamping block 10. The movable clamping block 11 is connected to the fixed clamping block 10 through a locking member 12.

[0043] The positioning post 9 is detachably connected to the positioning sleeve 1; a first positioning block 5 is fixedly installed on the first telescopic mechanism 3, and a concave polishing strip 6 is detachably installed on the first positioning block 5; a second positioning block 7 is fixedly installed on the second telescopic mechanism 4, and a convex polishing strip 8 is detachably installed on the second positioning block 7; both the first telescopic mechanism 3 and the second telescopic mechanism 4 are hinged to the mounting frame 13, and both the first telescopic mechanism 3 and the second telescopic mechanism 4 are connected to an angle adjustment mechanism 14.

[0044] The positioning sleeve 1 is rotatably mounted on the mounting sleeve 15, and the outer wall of the positioning sleeve 1 is provided with a driven gear 16. The rotation drive mechanism 2 includes a motor, and the main shaft of the motor is connected to a driving gear 17, which meshes with the driven gear 16.

[0045] The structure and function described above are the same as in Embodiment 1.

[0046] During the polishing process, the concave polishing strip 6 and the convex polishing strip 8 grind the lens surface. The material on the lens surface is ground into granular debris. The debris easily adheres to the lens and the polishing surfaces of the concave polishing strip 6 and the convex polishing strip 8. During polishing, the debris affects the contact between the polishing surface and the lens surface. Furthermore, the debris is subjected to pressure from the concave polishing strip 6 and the convex polishing strip 8, which may cause scratches on the lens surface, affecting the polishing efficiency and polishing effect.

[0047] To solve the above problems, such as Figure 2 As shown, in this embodiment, the centerline of the positioning sleeve 1 is horizontal, and both the concave polishing strip 6 and the convex polishing strip 8 extend from top to bottom. Both the concave polishing strip 6 and the convex polishing strip 8 are provided with arc-shaped polishing surfaces, such as... Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a first groove 18 is provided on both sides of the polished surface. A flexible barrier layer 19 is provided on the outer side of the bottom of the first groove 18. The barrier layer 19 can be made of existing materials such as a brush or a cleaning cloth. A second groove 20 is provided on the polished surface. A dust collection chamber 21 is provided inside the lower end of the concave polishing strip 6 and the convex polishing strip 8. The lower ends of the bottoms of the first groove 18 and the second groove 20 are connected to the dust collection chamber 21.

[0048] By setting the flexible barrier layer 19 on both sides of the polishing surface, the barrier layer 19 has the effect of cleaning and preventing debris from passing through the barrier layer 19. During polishing, the lens rotates, and the concave polishing strip 6 and the convex polishing strip 8 remain stationary. The mirror surface first passes through the barrier layer 19 and then contacts the polishing surface. When the mirror surface passes through the barrier layer 19, the debris attached to the surface of the mirror surface is cleaned by the barrier layer 19, which can prevent most external debris from reaching the first groove 18. The polishing surface grinds the mirror surface, producing internal debris. The barrier layer 19 can prevent most internal debris from moving outside the barrier layer 19, ensuring that most internal debris will enter the first groove 18 and the second groove 20, and then slide down along the first groove 18 and the second groove 20 under the action of gravity into the dust collection chamber 21 for collection. Only a small amount of internal debris with a small particle size will adhere to the mirror surface.

[0049] In the present application, the first groove 18 and the second groove 20 are used for debris removal, the dust collection chamber 21 is used for collecting debris, and the barrier layer 19 is used for cleaning external debris while preventing internal debris from moving to the outside. This can reduce the amount of debris between the polishing surface and the mirror surface, improve polishing efficiency and polishing effect. At the same time, since the debris is collected, the amount of debris entering the air is reduced, which is conducive to improving the workshop environment. Every certain period of time, the concave polishing strip 6 and the convex polishing strip 8 are removed, and the debris in the dust collection chamber 21 is cleaned. The present application directly uses the concave polishing strip 6 and the convex polishing strip 8 to collect debris, simplifying the structure of the equipment.

[0050] In order to facilitate the rapid entry of debris in the first groove 18 and the second groove 20 into the dust collection chamber 21, the upper end of the concave polishing strip 6 and the convex polishing strip 8 is internally provided with an air inlet chamber 22, the air inlet chamber 22 is connected with an air inlet mechanism 23, and the upper end of the first groove 18 and the second groove 20 is communicated with the air inlet chamber 22; the sidewall of the dust collection chamber 21 is provided with a plurality of air outlet filter holes.

[0051] The air inlet mechanism 23 can be a gas pump or a fan, etc. connected with the air inlet chamber 22 through an air pipe, which can deliver external air to the air inlet chamber 22. The air in the air inlet chamber 22 enters the first groove 18 and each second groove 20. The rapid flow of air can drive the debris generated during polishing to move rapidly to the lower end of the first groove 18 and each second groove 20 and enter the dust collection chamber 21. Then the air is discharged from the air outlet filter holes, and the debris stays in the dust collection chamber 21. In addition, the flow of air can also carry away the heat generated by the concave polishing strip 6 and the convex polishing strip 8, achieving rapid heat dissipation of the concave polishing strip 6 and the convex polishing strip 8.

[0052] In order to fully remove the adhered debris on the mirror surface and clean the debris in the entering air, the width of the first positioning block 5 is greater than the width of the concave polishing strip 6, the width of the second positioning block 7 is greater than the width of the convex polishing strip 8, the side edges of the first positioning block 5 and the second positioning block 7 are provided with a plurality of air blowing heads 24, the air blowing direction of the air blowing head 24 is inclined downward, the air blowing head 24 is connected with an air blowing mechanism 25, the lower portion of the positioning sleeve 1 is provided with a dust collecting cover 26, the dust collecting cover 26 is connected with a dust removal cloth bag 28 through a suction mechanism 27.

[0053] The air blowing mechanism 25 can adopt a fan or an air pump, and can be the same device as the air inlet mechanism 23. The air blowing mechanism 25 can send rapidly flowing air to each air blowing head 24, and the air is inclined downwardly sprayed to the mirror surface through the air blowing head 24, the debris adhered on the mirror surface is blown off, and the debris is driven to flow downwardly, the suction mechanism 27 sucks the air, the debris is sucked into the dust collecting cover 26 together with the air, and then is sent to the dust removal cloth bag 28 for dust removal. The suction mechanism 27 can adopt a fan or the like.

[0054] Embodiment three

[0055] The embodiment is based on the embodiment one shown in the Figure 1 When the lens needs to be finely polished and the surface roughness requirement is high, for example, when the precise optical lens is processed, the polishing agent is usually added, the polishing agent usually adopts cerium oxide, aluminum oxide powder or the like, and can be directly added or prepared into a suspension for addition. The existing adding method is to directly add the polishing agent to the polishing surface, the polishing agent is gradually consumed during polishing, and the polishing process cannot be flexibly supplemented.

[0056] In order to realize flexible addition of the polishing agent, the concave polishing strip 6 and the convex polishing strip 8 of the embodiment adopt a structure as shown in Figure 7The structure shown, the side of the first positioning block 5 and the second positioning block 7 is provided with a mounting groove, the concave polishing strip 6 and the convex polishing strip 8 all include a polishing part 61 and a mounting part 62, the mounting part 62 is located in the mounting groove, and the mounting part 62 and the mounting groove are in sliding fit in the width direction of the mounting groove. The spring 63 is arranged between one side edge of the mounting part 62 and the side wall of the mounting groove, and the other side edge of the mounting part 62 is provided with a pin hole, and the pin hole is provided with a bolt 64 in sliding fit with the pin hole, and the bolt 64 penetrates the side wall of the mounting groove. The first positioning block 5 and the second positioning block 7 are provided with a cylindrical cavity, and the cylindrical cavity is divided into a constant pressure cavity 66 and a polishing agent storage cavity 67 by a piston 65, the constant pressure cavity 66 is provided with an air pressure sensor 68, and the constant pressure cavity 66 is connected with an air pressure control mechanism 69, and the air pressure sensor 68 and the air pressure control mechanism 69 are connected with a controller 610; the polishing agent storage cavity 67 is provided with a slidable sealing plate 611 at the port away from the piston 65, and the sealing plate 611 can seal the polishing agent storage cavity 67. The sealing plate 611 is connected with a communication plate 612, the communication plate 612 is provided with a plurality of polishing agent adding through holes 613, and the communication plate 612 is fixedly connected with the polishing part 61, the sealing plate 611, the communication plate 612, the mounting part 62 and the polishing part 61 are integrally formed, the side surface of the sealing plate 611, the side surface of the communication plate 612 and the polishing surface of the polishing part 61 are located in the same arc surface and can be attached to the mirror surface. The communication plate 612 and the spring 63 are located on the same side of the mounting part 62.

[0057] The polishing agent storage cavity 67 stores polishing agent and liquid, the polishing agent can adopt aluminum oxide powder, and the liquid can adopt water.

[0058] The air pressure sensor 68 is used for detecting the air pressure in the constant pressure cavity 66 and transmitting the detection result to the controller 610, and the controller 610 controls the air pressure control mechanism 69 to operate according to the detection result, so that the air pressure in the constant pressure cavity 66 is always at a set value. The air pressure in the constant pressure cavity 66 meets: when the polishing agent adding through hole 613 is communicated with the polishing agent storage cavity 67, it can push the piston 65 to move and extrude the polishing agent. The air pressure control mechanism 69 can adopt an air pump, and the air pump is connected with the constant pressure cavity 66 through an air pipe.

[0059] The spring 63 is fixedly installed, the mounting part 62 is put into the mounting groove, the spring 63 is compressed and has a certain elastic force, the mounting part 62 is pressed tightly, and then the bolt 64 is inserted into the pin hole in the side surface of the mounting part 62, so that the mounting part 62 can be stably installed.

[0060] During polishing, the pressure of the polishing part 61 on the lens remains unchanged, and the lens is polished according to Figure 7The polishing part 61 is rotated in the direction indicated by the arrow, and friction is generated. Under the action of the friction, the polishing part 61 and the mounting part 62 slide in the mounting groove, and the sliding direction is consistent with the movement direction of the lens, so as to compress the spring 63. It is known that the polishing agent has a lubricating effect, and can reduce the friction between the polishing part 61 and the lens. When the polishing agent is consumed, the friction between the polishing part 61 and the lens gradually increases, so that the sliding distance of the polishing part 61 and the mounting part 62 increases, and the spring 63 is further compressed. When the polishing part 61 and the mounting part 62 slide, the sealing plate 611 and the communication plate 612 are driven to move. When the friction increases to a certain degree, the communication plate 612 can move below the polishing agent storage cavity 67. At this time, the polishing agent adding through hole 613 is communicated with the polishing agent storage cavity 67, and the liquid in the polishing agent storage cavity 67 and the polishing agent are extruded by the piston 65, discharged through the polishing agent adding through hole 613, and attached to the lens. After adding the polishing agent, the friction between the polishing part 61 and the lens decreases, and under the action of the spring 63, the polishing part 61 and the mounting part 62 drive the sealing plate 611 and the communication plate 612 to reset, and the sealing plate 611 reseals the polishing agent storage cavity 67.

[0061] The liquid in the polishing agent storage cavity 67 can play a lubricating and cooling role, and is used to drive the flow of the powdered polishing agent. Even if the polishing agent is deposited at the bottom of the polishing agent storage cavity 67, the liquid can also drive the polishing agent to flow onto the lens.

[0062] The present application can automatically add the polishing agent, and timely supplement new polishing agent when the polishing agent is consumed, so as to ensure the polishing effect.

[0063] The embodiment is suitable for precise polishing of the lens.

[0064] The above only describes the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An arcuate lens polishing machine, characterized by: The utility model provides a lens positioning device, including positioning sleeve (1), positioning sleeve (1) is connected with the rotation drive mechanism (2) of drive positioning sleeve (1) rotation, be provided with lens positioning mechanism on positioning sleeve (1), one side of positioning sleeve (1) is provided with first telescopic mechanism (3), the other side is provided with second telescopic mechanism (4), the center line of first telescopic mechanism (3) and second telescopic mechanism (4) with the center line of positioning sleeve (1) intersection, be provided with concave surface polishing strip (6) on first telescopic mechanism (3), be provided with convex surface polishing strip (8) on second telescopic mechanism (4), the center line of positioning sleeve (1) is horizontal, and concave surface polishing strip (6) and convex surface polishing strip (8) all extend from top to bottom, First telescopic mechanism (3) is fixedly provided with first positioning block (5), and second telescopic mechanism (4) is fixedly provided with second positioning block (7), the side of first positioning block (5) and second positioning block (7) is provided with mounting groove, concave surface polishing strip (6) and convex surface polishing strip (8) all include polishing part (61) and mounting portion (62), the mounting portion (62) is located in mounting groove, and mounting portion (62) and mounting groove are slidably connected in the width direction of mounting groove, and the side edge of mounting portion (62) is provided with spring (63) between mounting groove side wall, the other side edge of mounting portion (62) is provided with pin hole, the pin hole is provided with the bolt (64) of sliding fit with pin hole, and the bolt (64) penetrates mounting groove side wall, first positioning block (5) and second positioning block (7) are provided with column cavity, the column cavity is divided into constant pressure chamber (66) and polishing agent storage chamber (67) by piston (65), the constant pressure chamber (66) is provided with air pressure sensor (68), and the constant pressure chamber (66) is connected with air pressure control mechanism (69), the air pressure sensor (68) and air pressure control mechanism (69) are all connected with controller (610), the port of polishing agent storage chamber (67) is provided with the seal plate (611) of slidability, the seal plate (611) is connected with the intercommunication plate (612), the intercommunication plate (612) is provided with a plurality of polishing agent adding through -hole (613), and the intercommunication plate (612) is fixedly connected with polishing part (61), the intercommunication plate (612) and spring (63) are located the same side edge of mounting portion (62).

2. The arcuate lens polishing machine of claim 1, wherein: The lens positioning mechanism includes at least three positioning columns (9) evenly arranged on the inner wall of the positioning sleeve (1), the length direction of the positioning column (9) is consistent with the radial direction of the positioning sleeve (1), each positioning column (9) is provided with a fixed clamp block (10) and a movable clamp block (11), the fixed clamp block (10) is fixedly connected with the positioning column (9), the movable clamp block (11) is slidably connected with the positioning column (9), and the movable clamp block (11) and the fixed clamp block (10) have an arc-shaped clamping spacing, the movable clamp block (11) is connected with the fixed clamp block (10) through a locking member (12).

3. The arcuate lens polishing machine of claim 2, wherein: The positioning column (9) is detachably connected with the positioning sleeve (1). The first telescopic mechanism (3) and the second telescopic mechanism (4) are hingedly installed on a mounting rack (13), and the first telescopic mechanism (3) and the second telescopic mechanism (4) are connected with an angle adjusting mechanism (14).

4. The arcuate lens polishing machine of claim 1, wherein: The positioning sleeve (1) is rotatably installed on a mounting sleeve (15), and an outer wall of the positioning sleeve (1) is provided with a driven gear (16); the rotating driving mechanism (2) comprises a motor, a main shaft of the motor is connected with a driving gear (17), and the driving gear (17) is engaged with the driven gear (16).

5. The arcuate lens polishing machine of claim 1, wherein: The concave polishing strip (6) and the convex polishing strip (8) are provided with arc polishing surfaces, two side edges of the polishing surfaces are provided with first grooves (18), and outer side edges of groove bottoms of the first grooves (18) are provided with flexible blocking layers (19); the polishing surfaces are provided with second grooves (20), inner lower ends of the concave polishing strip (6) and the convex polishing strip (8) are provided with dust collecting cavities (21), and lower ends of groove bottoms of the first grooves (18) and the second grooves (20) are communicated with the dust collecting cavities (21).

6. The arcuate lens polishing machine of claim 5, wherein: Inner upper ends of the concave polishing strip (6) and the convex polishing strip (8) are provided with air inlet cavities (22), the air inlet cavities (22) are connected with air inlet mechanisms (23), upper ends of the first grooves (18) and the second grooves (20) are communicated with the air inlet cavities (22), and side walls of the dust collecting cavities (21) are provided with a plurality of air outlet filter holes.

7. The arcuate lens polishing machine of claim 5, wherein: The first telescopic mechanism (3) is fixedly provided with a first positioning block (5), and the concave polishing strip (6) is detachably installed on the first positioning block (5); the second telescopic mechanism (4) is fixedly provided with a second positioning block (7), and the convex polishing strip (8) is detachably installed on the second positioning block (7). The width of the first positioning block (5) is greater than the width of the concave polishing strip (6), the width of the second positioning block (7) is greater than the width of the convex polishing strip (8), side edges of the first positioning block (5) and the second positioning block (7) are provided with a plurality of air blowing heads (24), and air blowing directions of the air blowing heads (24) are obliquely downward; the air blowing heads (24) are connected with air blowing mechanisms (25). A dust collecting cover (26) is arranged below the positioning sleeve (1), and the dust collecting cover (26) is connected with a dust collecting bag (28) through an air suction mechanism (27).

8. The arcuate lens polishing machine of claim 1, wherein: The sealing plate (611), the communication plate (612), the mounting portion (62) and the polishing portion (61) are integrally formed.

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