Quartz lens grinding device for removing subsurface defects and using method

Abstract

The invention relates to the field of lens grinding, in particular to a quartz lens grinding device for removing subsurface defects and a using method, and the quartz lens grinding device comprises a cylinder, a cover plate, a fixing rod, a fixing table, an annular DD motor I, a vacuum chuck I and the like; the cylinder is rotationally connected with a cover plate; a fixing rod is connected into the cylinder; the fixing rod is fixedly connected with a fixing table; the fixed table is fixedly connected with an annular DD motor I; and a rotating part of the annular DD motor I is fixedly connected with a vacuum chuck I. A plurality of positioning wheels synchronously move towards the center of a placement circular truncated cone to correct and position the position of a lens body placed on the placement circular truncated cone, and the lens body can be aligned with a vacuum chuck I only by covering a cover plate subsequently, so that when a larger quartz lens with convex arc-shaped upper and lower surfaces is manually placed, the lens body can be aligned with the vacuum chuck I, and the lens body can be accurately positioned. The problem that the subsurface defect grinding precision of the subsequent lens is affected due to the fact that the lens is difficult to place accurately is solved.

Description

Technical Field

[0001] The invention relates to the field of lens grinding, and in particular to a quartz lens grinding device for removing sub-surface defects and a use method thereof. Background Art

[0002] Quartz lenses are widely used in various optical instruments due to their high light transmittance, high chemical stability and high hardness.

[0003] After the quartz lens is processed and formed, the lens has sub-surface defects such as scratches, cracks and grinding marks. These defects will affect the optical performance of the lens, and the sub-surface defects of the quartz lens need to be ground and polished. The existing method is usually to fix the quartz lens on a fixing device such as a suction cup, and then drive the suction cup to rotate to drive the quartz lens to rotate, and then grind the sub-surface defects of the quartz lens with a grinding disc; however, some quartz lenses used in large telescopes are convex mirrors. Since the surface of the lens is a convex arc shape and it is a large quartz lens, it is difficult for people to align and fix the center of the lens when fixing the lens, so that when the lens is subsequently driven to rotate for grinding, the lens is prone to deviation, which affects the grinding accuracy of the sub-surface defects of the lens; and convex lenses of different specifications have different convex curvatures on their surfaces. Existing equipment usually replaces the corresponding grinding disc to adapt to convex mirrors of different specifications, and each replacement requires recalibration and installation, which increases the complexity and time cost of the operation, and it is necessary to purchase grinding discs of different specifications, which increases the material cost. Summary of the invention

[0004] In order to overcome the disadvantage that it is difficult to align and fix the center of a quartz lens when the fixed surface is a convex arc shape and the lens is large, so that the lens is easily offset when the lens is subsequently driven to rotate for grinding, affecting the grinding accuracy of sub-surface defects of the lens, the present invention provides a grinding device for a quartz lens for removing sub-surface defects and a method of use.

[0005] The technical scheme is as follows: A grinding device for quartz lenses for removing sub-surface defects, comprising a cylinder, a cover plate, a fixing rod, a fixing table, an annular DD motor and a vacuum suction cup; the cylinder is rotatably connected to the cover plate, and a handle is provided on the surface of the cover plate; the inside of the cylinder is connected to the fixing rod; the fixing rod is fixedly connected to the fixing table; the fixing table is fixedly connected to an annular DD motor; the rotating part of the annular DD motor is fixedly connected to the vacuum suction cup, a cavity is provided inside the fixing table, the fixing table is connected to a pipeline, the pipeline passes through the right end of the fixing rod and is connected to an external pump, and the fixing table is rotatably connected and connected to the vacuum suction cup; it also includes a placement table, an electric slider, an electric push rod, a positioning wheel and a grinding component; the cover plate is fixedly connected to the placement table; the placement table is slidably connected to a plurality of electric sliders; each electric slider is fixedly connected to an electric push rod; each telescopic part of the electric push rod is respectively equipped with a positioning wheel for positioning and fixing the lens body; the inside of the cylinder is connected to a grinding component for grinding sub-surface defects of the lens body.

[0006] Optionally, the grinding component includes an adjustment unit, a fixed plate, two electric push rods, a mounting frame, a guide roller, a polishing belt and an electric winding drum; the cylinder is connected to the adjustment unit; the adjustment unit is connected to two fixed plates; each fixed plate is fixed with a number of two electric push rods; the telescopic parts of all two electric push rods on the same fixed plate are commonly fixed with a mounting frame; each fixed plate is equipped with an electric winding drum; one of the electric winding drums is fixed with and winds up a polishing belt, and the other end of the polishing belt is fixed with and wound up inside another electric winding drum; each mounting frame is rotatably connected to two guide rollers, and the polishing belt passes between every two guide rollers.

[0007] Optionally, the adjustment unit includes an electric guide rail, an electric slide plate and a micro motor; the inner wall of the cylinder is fixedly connected to the electric guide rail; the electric guide rail is slidably connected to two electric slide plates; each electric slide plate is fixedly connected to a micro motor, the electric slide plate is rotatably connected to a fixed plate, and the output shaft of the micro motor is fixedly connected to the fixed plate.

[0008] Optionally, it also includes an elastic telescopic plate and a pressing roller; each mounting frame is fixed with two elastic telescopic plates; the telescopic parts of the two elastic telescopic plates on the same mounting frame are each rotatably connected to a pressing roller, and the pressing roller is located on the side of the polishing belt close to the inner wall of the cylinder.

[0009] Optionally, it also includes a water pipe 1, annular pipe 1, water pipe 2, annular pipe 2, a drain pipe and a filter; the cylinder is fixedly connected to the filter, and the filter is located below the fixed platform; the bottom of the cylinder is connected to a drain pipe, and the drain pipe is connected to an external circulation suction mechanism; the cylinder is fixedly connected to annular pipe 1, and the annular pipe 1 is provided with a number of nozzles inclined downward toward the center of the vacuum suction cup 1, and the annular pipe 1 is located above the vacuum suction cup 1; the cylinder passes through and is fixedly connected with water pipe 1, and water pipe 1 is connected to annular pipe 1; the cylinder is fixedly connected with annular pipe 2, and the annular pipe 2 is provided with a number of nozzles inclined upward toward the vacuum suction cup 1, and the annular pipe 2 is located below the vacuum suction cup 1; the cylinder passes through and is fixedly connected with water pipe 2, water pipe 2 is connected to annular pipe 2, and both water pipe 1 and water pipe 2 are connected to the external circulation suction mechanism.

[0010] Optionally, it also includes a hose and a circular tube; each electric winding drum is fixedly connected to a circular tube, and each circular tube is provided with a plurality of nozzles inclined toward the polishing belt; each circular tube is connected to a hose, and the upper hose is connected to annular tube 1, and the lower hose is connected to annular tube 2.

[0011] Optionally, it also includes an annular DD motor 2, a vacuum suction cup 2 and a ventilation disc; the placement table is fixedly connected to the annular DD motor 2; the rotating part of the annular DD motor 2 is fixedly connected to the vacuum suction cup 2, and the annular DD motor 2 and the annular DD motor 1 are concentrically arranged up and down; the cover plate is fixedly connected to the ventilation disc, the ventilation disc is connected to the external pump through a pipeline, and the ventilation disc passes through the cover plate and the placement table, and the ventilation disc is rotationally connected and connected to the vacuum suction cup 2.

[0012] Optionally, a blowing pipe is also included; the cylinder is fixedly connected with the blowing pipe, the blowing pipe is connected to an external pump, and the blowing pipe is inclined toward a center of the vacuum suction cup.

[0013] Optionally, it also includes a rotating motor and a baffle; the fixed rod is rotatably connected to the cylinder; the cylinder is fixedly connected to the rotating motor, and the output shaft of the rotating motor is fixedly connected to the fixed rod; the bottom of the fixed platform is fixedly connected to the baffle, and the upper and lower sides of the baffle are both provided with inclined surfaces.

[0014] Optionally, a method for using a quartz lens grinding device for removing sub-surface defects comprises the following steps: Step 1: First, manually place the lens body with sub-surface defects on the placement round table, and position and clamp the lens body by the positioning wheel, then cover the cover plate, and control the positioning wheel to drive the lens body to move, so that the lens body contacts and is fixed with the vacuum suction cup; Step 2: Control the electric push rod 2 on the upper fixed plate to drive the corresponding guide roller to move along the upper surface of the lens body, so that the polishing belt fits with its upper surface, and then drive the lens body to rotate to grind the sub-surface defects on its upper surface and side surfaces; Step 3: After the sub-surface defects on the upper surface and side of the lens body are ground, the vacuum suction cup 1 is controlled to stop fixing the lens body, and the positioning wheel is controlled to drive the lens body to move, so that the upper surface of the lens body contacts the vacuum suction cup 2, and the lens body is fixed by the vacuum suction cup 2, and then the sub-surface defects on its lower surface are ground with the polishing belt to complete the sub-surface defect grinding process of the lens body.

[0015] Compared with the prior art, the present invention has the following advantages: By means of several positioning wheels synchronously moving toward the center of the placing table, the position of the lens body placed on the placing table is corrected and positioned. Subsequently, when the cover plate is simply put on, the lens body and the vacuum suction cup are aligned, thereby avoiding the problem of difficulty in placing the lens accurately when manually placing a larger quartz lens with raised arc shapes on the upper and lower surfaces, thereby affecting the subsequent grinding accuracy of sub-surface defects of the lens.

[0016] When facing quartz lenses with convex mirror shapes of different specifications, the position of the guide roller is adjusted by controlling the movement of the electric slide, so that the polishing belt can adapt to quartz lenses of different thicknesses, thereby increasing the adaptability of the device.

[0017] The positioning wheel drives the lens body to move after grinding, and the upper surface of the lens body is re-adsorbed and fixed by two vacuum suction cups. The polishing belt is pulled out and fit with its lower surface by the guide roller on the lower fixed plate, so that the sub-surface defects on the upper and lower surfaces of the lens body can be fully ground without re-positioning the lens, thereby improving the overall grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure disclosed by the grinding device for a quartz lens for removing sub-surface defects of the present invention; Figure 2 The figure is a schematic diagram of the structure inside the cylinder disclosed by the grinding device for quartz lens for removing sub-surface defects of the present invention; Figure 3 The present invention is a schematic diagram of the combined structure of the placing truncated table, the electric slider, the electric push rod and the positioning wheel disclosed in the grinding device for quartz lenses for removing sub-surface defects of the present invention; Figure 4 The present invention is a schematic diagram of the structure of the ring-shaped DD motor 1, vacuum suction cup 1, ring tube 1, ring tube 2, rotating motor and baffle assembly disclosed in the grinding device for quartz lens for removing sub-surface defects; Figure 5 The schematic diagram of the structure of the water pipe 1, the annular pipe 1, the water pipe 2, the annular pipe 2, the drainage pipe and the filter screen assembly disclosed in the grinding device for removing sub-surface defects of a quartz lens of the present invention; Figure 6 A state diagram of the lens body being fixed by the positioning wheel of the quartz lens grinding device for removing sub-surface defects of the present invention; Figure 7 The schematic diagram of the structure of the grinding component disclosed in the grinding device for a quartz lens for removing sub-surface defects of the present invention; Figure 8 The present invention is a schematic diagram of the combined structure of a hose, a round tube, an elastic expansion plate and a pressing roller disclosed in the grinding device for a quartz lens for removing sub-surface defects.

[0019] Markings in the attached drawings: 1-cylinder, 2-cover plate, 3-fixing rod, 4-fixing table, 5-ring DD motor 1, 6-vacuum suction cup 1, 7-placing round table, 8-electric slider, 9-electric push rod 1, 10-positioning wheel, 11-fixing plate, 12-electric push rod 2, 13-mounting frame, 14-guide roller, 15-polishing belt, 16-electric winding drum, 17-elastic telescopic plate, 18-pressing roller, 101-electric guide rail , 102-electric skateboard, 103-micro motor, 111-water pipe one, 112-annular pipe one, 113-water pipe two, 114-annular pipe two, 115-drain pipe, 116-filter, 121-hose, 122-round pipe, 123-blowing pipe, 131-annular DD motor two, 132-vacuum suction cup two, 133-ventilation disc, 201-rotating motor, 202-baffle, 100-lens body. DETAILED DESCRIPTION

[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0021] Example 1 A quartz lens grinding device for removing sub-surface defects, such as Figure 1-Figure 8 As shown, it includes a cylinder 1, a cover plate 2, a fixing rod 3, a fixing platform 4, an annular DD motor 5 and a vacuum suction cup 6; the cylinder 1 is rotatably connected to the cover plate 2, and a handle is provided on the surface of the cover plate 2; the fixing rod 3 is connected inside the cylinder 1; the fixing rod 3 is fixedly connected to the fixing platform 4; the fixing platform 4 is fixedly connected to the annular DD motor 5; the rotating part of the annular DD motor 5 is fixedly connected to the vacuum suction cup 6, a cavity is provided inside the fixing platform 4, the fixing platform 4 is connected to a pipeline, the pipeline passes through the right end of the fixing rod 3 and is connected to an external pump, and the fixing platform 4 is rotatably connected and connected to the vacuum suction cup 6, and the lens body 100 is fixed by the vacuum suction cup 6; It also includes a placement table 7, an electric slider 8, an electric push rod 9, a positioning wheel 10 and a grinding component; the cover plate 2 is fixedly connected to the placement table 7; the placement table 7 is slidably connected to six electric sliders 8 distributed in a ring; each electric slider 8 is fixedly connected to an electric push rod 9; each electric push rod 9 telescopic part is installed with a positioning wheel 10; the inside of the cylinder 1 is connected to a grinding component.

[0022] The grinding components include an adjusting unit, a fixed plate 11, an electric push rod 12, a mounting frame 13, a guide roller 14, a polishing belt 15 and an electric winding drum 16; the cylinder 1 is connected to the adjusting unit; the adjusting unit is connected to two fixed plates 11; each fixed plate 11 is fixedly connected to two electric push rods 12; the telescopic parts of all electric push rods 12 on the same fixed plate 11 are fixedly connected to a mounting frame 13; each fixed plate 11 is installed with an electric winding drum 16; one of the electric winding drums 16 is fixedly connected to and winds up a polishing belt 15, and the other end of the polishing belt 15 is fixedly connected to and wound up by another electric winding drum 16; each mounting frame 13 is rotatably connected to two guide rollers 14, and the polishing belt 15 passes between every two guide rollers 14.

[0023] The adjusting unit includes an electric guide rail 101, an electric slide plate 102 and a micro motor 103; the inner wall of the cylinder 1 is fixedly connected with the electric guide rail 101; the electric guide rail 101 is slidably connected with two electric slide plates 102; each electric slide plate 102 is fixedly connected with a micro motor 103, the electric slide plate 102 is rotationally connected with the fixed plate 11, and the output shaft of the micro motor 103 is fixedly connected with the fixed plate 11.

[0024] It also includes an elastic telescopic plate 17 and a pressing roller 18; each mounting frame 13 is fixedly connected to two elastic telescopic plates 17, the elastic telescopic plates 17 are composed of a fixed sleeve and a sliding plate, the sliding plate slides in the fixed sleeve, and a spring is connected between the sliding plate and the fixed sleeve, and the sliding plate is the telescopic part of the elastic telescopic plate 17; the telescopic parts of the two elastic telescopic plates 17 on the same mounting frame 13 are each rotated together and connected to a pressing roller 18, and the pressing roller 18 is located on the side of the polishing belt 15 close to the inner wall of the cylinder 1.

[0025] The cylinder 1 is fixed with the filter screen 116, and the filter screen 116 is located below the fixed platform 4; the bottom of the cylinder 1 is connected with the drain pipe 115, and the drain pipe 115 is connected with the external circulation suction mechanism; the cylinder 1 is fixed with the annular pipe 112, and the annular pipe 112 is provided with a plurality of nozzles inclined downwardly toward the center of the vacuum suction cup 6, and the annular pipe 112 is located at the vacuum suction cup 6. The cylinder 1 is above the plate 6; the cylinder 1 is penetrated by and fixedly connected with a water pipe 111, and the water pipe 111 is communicated with the annular pipe 112; the cylinder 1 is fixedly connected with an annular pipe 2 114, and the annular pipe 2 114 is provided with a plurality of nozzles inclined upward toward the vacuum suction cup 1 6, and the annular pipe 2 114 is located below the vacuum suction cup 1 6; the cylinder 1 is penetrated by and fixedly connected with a water pipe 2 113, the water pipe 2 113 is communicated with the annular pipe 2 114, and the water pipe 111 and the water pipe 2 113 are both communicated with the external circulation suction mechanism.

[0026] It also includes a hose 121 and a circular tube 122; each electric winding drum 16 is fixedly connected to a circular tube 122, and each circular tube 122 is provided with a plurality of nozzles inclined toward the polishing belt 15; each circular tube 122 is connected to a hose 121, and the upper hose 121 is connected to the annular tube 1 112, and the lower hose 121 is connected to the annular tube 2 114.

[0027] It also includes an annular DD motor 131, a vacuum suction cup 132 and a ventilation disc 133; the placement table 7 is fixedly connected to the annular DD motor 131; the rotating part of the annular DD motor 131 is fixedly connected to the vacuum suction cup 132, and the annular DD motor 131 and the annular DD motor 15 are concentrically arranged up and down; the cover plate 2 is fixedly connected to the ventilation disc 133, the ventilation disc 133 is connected to the external pump through a pipeline, and the ventilation disc 133 passes through the cover plate 2 and the placement table 7, and the ventilation disc 133 is rotationally connected and connected to the vacuum suction cup 132.

[0028] It also includes a blowing pipe 123; the cylinder 1 is fixedly connected with the blowing pipe 123, the blowing pipe 123 is connected to the external pump, and the blowing pipe 123 is inclined toward the center of the vacuum suction cup 1 6. When the defects on the upper surface of the lens body 100 are ground, the polishing liquid remaining on the upper surface is blown dry through the blowing pipe 123 to facilitate the subsequent adsorption and fixation of the vacuum suction cup 2 132.

[0029] When grinding the sub-surface defects of a quartz lens, the lens body 100 is manually placed on a vacuum suction cup 6, and the vacuum suction cup 6 is controlled to adsorb and fix the placed lens body 100, and then the annular DD motor 5 is controlled to drive the vacuum suction cup 6 and the fixed lens body 100 to rotate, and then the grinding component is brought close to the surface of the rotating lens body 100 to polish and grind the sub-surface defects to remove the defects; however, when grinding a quartz lens that is a convex mirror, since both its upper and lower surfaces are convex arc shapes and it is a large quartz lens, it is difficult to manually align and fix the center of the lens, so that when the lens is subsequently driven to rotate for grinding, the lens is prone to offset, affecting the grinding accuracy of the sub-surface defects of the lens; therefore, when placing a fixed lens, the lens body 100 is placed on the surface of the fixed lens body 100. During the process of placing the lens body 100, the lens body 100 to be placed and fixed is first placed manually on the placement truncated table 7, and supported by the vacuum suction cup 2 132 on the placement truncated table 7, and then the electric push rod 1 9 is controlled to drive the positioning wheel 10 to move, so that the middle part of the positioning wheel 10 moves to the same horizontal line as the center position of the placed lens body 100 in the thickness direction, and then all the electric sliders 8 are synchronously controlled to drive the electric push rod 1 9 and the positioning wheel 10 to move toward the center of the placement truncated table 7. Through a plurality of positioning wheels 10 synchronously moving toward the center of the placement truncated table 7, the position of the lens body 100 placed on the placement truncated table 7 is corrected and clamped, so that the center of the lens body 100 is aligned with the center of the placement truncated table 7, and then the cover plate 2 is manually rotated to cover the cylinder 1, as shown in FIG. Figure 6 As shown, since the center of the placing truncated table 7 is aligned with the center of the vacuum suction cup 6, the center of the placed lens body 100 is aligned with the center of the vacuum suction cup 6, and then the electric push rod 9 is controlled to drive the positioning wheel 10 and the lens body 100 to move downward. When the lens body 100 contacts the vacuum suction cup 6, it stops moving. Subsequently, it is only necessary to control the external pump to suck through the pipeline and the cavity inside the fixing table 4 in turn, so that the lens body 100 is adsorbed and fixed by the vacuum suction cup 6, and the positioning wheel 10 is controlled to stop clamping the lens body 100. Compared with manually placing the lens body 100 directly on the vacuum suction cup 6, there is no need to manually place the lens body 100 on the vacuum suction cup 6 during the placement process. However, it is necessary to manually adjust the position of the lens body 100 repeatedly, and the accuracy of the placement of the lens body 100 cannot be guaranteed. The present invention places the lens body 100 on the placement table 7 first, and uses a plurality of positioning wheels 10 to synchronously move toward the center of the placement table 7 to correct the position of the lens body 100 placed on the placement table 7. Subsequently, when the cover plate 2 is covered, the alignment of the lens body 100 and the vacuum suction cup 6 can be completed, thereby avoiding the problem of difficulty in placing the lens accurately when the upper and lower surfaces of the lens are both convex arc shapes and the lens is relatively large, thereby affecting the subsequent sub-surface defect grinding accuracy of the lens.

[0030] When the lens body 100 is aligned with the vacuum suction cup 6, and the vacuum suction cup 6 is controlled to fix the bottom surface of the lens body 100, the ring-shaped DD motor 5 is controlled to drive the vacuum suction cup 6 and the lens body 100 to rotate; then, considering that when grinding a quartz lens, a grinding disc is usually used to grind its surface, but when grinding a quartz lens in the shape of a convex mirror, it is easy to have a grinding dead angle or uneven local grinding, and convex lenses of different specifications have different convex curvatures on their surfaces. The existing equipment usually replaces the corresponding grinding disc to adapt to convex mirrors of different specifications, and each replacement of the grinding disc requires recalibration and installation. , which increases the complexity and time cost of the operation, and requires the purchase of grinding discs of different specifications, which increases the material cost; therefore, after the lens body 100 is fixed on the vacuum suction cup 16, the upper electric slide 102 is then controlled to drive the fixing plate 11, the electric push rod 12 and other connected parts to move along the electric guide rail 101, so that the lower surface of the upper electric slide 102 is aligned with the edge of the upper surface of the lens body 100, and the upper surface of the lower electric slide 102 is controlled to move to align with the edge of the lower surface of the lens body 100, and then the micro motor 103 on the upper electric slide 102 is controlled to drive the corresponding fixing plate 11 downward The upper fixing plate 11 is rotated to rotate to an inclined downward state toward the upper surface of the lens body 100, and then the electric push rod 12 on the upper fixing plate 11 is controlled to drive the mounting frame 13 and the guide roller 14 to move along the upper surface of the lens body 100 toward the center of the lens body 100, and the electric winding drum 16 on the upper fixing plate 11 is synchronously controlled to unwind the polishing belt 15, and the guide roller 14 drives the polishing belt 15 to move in contact with the upper surface of the lens body 100. When the guide roller 14 passes the center of the lens body 100, it stops moving, and the electric winding drum 16 is controlled to stop unwinding. At this time, under the action of the elastic telescopic plate 17, the polishing belt 15 is unwound. The pressure roller 18 presses the polishing belt 15 on the upper surface of the lens body 100, so that the polishing belt 15 is in full contact and fit with the upper surface of the lens body 100, and then controls the annular DD motor 5 to drive the vacuum suction cup 6 and the lens body 100 to rotate, and grinds the sub-surface defects on the upper surface of the lens body 100 through the polishing belt 15, and fully grinds and removes the sub-surface defects on the upper surface of the lens body 100; at the same time, when facing quartz lenses with convex mirror shapes of different specifications, the position of the guide roller 14 is adjusted by controlling the movement of the electric slide plate 102, so that the polishing belt 15 can adapt to quartz lenses of different thicknesses, thereby increasing the adaptability of the device;Furthermore, when the polishing tape 15 is attached to the upper surface of the lens body 100, the electric push rod 12 on the lower fixed plate 11 is controlled to drive the guide roller 14 to move a short distance along the lower surface of the lens body 100 toward the center, and the electric reel 16 on the lower fixed plate 11 is controlled to unwind during the movement, so that the polishing tape 15 simultaneously wraps the side of the attached lens body 100. During subsequent grinding, the polishing tape 15 can grind the upper surface and the side of the lens body 100 at the same time, thereby improving the overall grinding efficiency of sub-surface defects. ;

[0031] Furthermore, when the sub-surface defects of the lens body 100 are ground, the polishing liquid is introduced into the annular tube 112 through the water pipe 111 through the external circulation suction mechanism. When the sub-surface defects of the upper surface and the side of the lens body 100 are ground, the polishing liquid is sprayed out through the nozzle inclined downward from the annular tube 112 toward the center of the vacuum suction cup 6, so as to lubricate and cool the upper surface and the side of the lens body 100 to ensure the overall sub-surface defect grinding effect. The polishing liquid and debris after grinding fall downward, and the debris in the polishing liquid is filtered out by the filter screen 116, and the polishing liquid falls into the cylinder 1, and is subsequently drawn away from the drain pipe 115 by the external circulation suction mechanism for recycling.

[0032] At the same time, considering that during the grinding process of the polishing belt 15, some of the debris ground down will adhere to the surface of the polishing belt 15 under the action of the polishing liquid, thereby reducing the grinding effect of the polishing belt 15. Therefore, during the grinding process, the upper electric winding drum 16 is regularly controlled to unwind and the lower electric winding drum 16 is controlled to rewind, or the upper electric winding drum 16 is controlled to rewind and the lower electric winding drum 16 is unwinded, the part of the polishing belt 15 that has been used for a period of time is rewound, and a new section of the polishing belt 15 is used for grinding, thereby ensuring the overall grinding effect; and, in the process of unwinding and winding the polishing belt 15, the nozzle arranged obliquely toward the polishing belt 15 on the circular tube 122 is controlled to work, and the polishing liquid in the annular tube 112 is transported to the circular tube 122 through the hose 121, and is sprayed out from the nozzle on the circular tube 122 to rinse the surface of the polishing belt 15 and wash off the debris attached to its surface, thereby facilitating subsequent recycling.

[0033] Furthermore, during the sub-surface defect grinding process of the upper surface and the side of the lens body 100 by the polishing belt 15, the annular DD motor 5 will drive the lens body 100 to rotate at a relatively high speed during grinding, and the polishing belt 15 will apply downward pressure to the lens body 100, while the lens body 100 is only fixed by the vacuum suction cup 6 through the center of the lower surface. This makes it easy for the lens body 100 to shift due to uneven force during the rotational grinding process, thereby affecting the overall sub-surface defect grinding accuracy of the lens. Therefore, after the positioning wheel 10 places the lens body 100 on the vacuum suction cup 6, the side of the lens body 100 that has been fixed by adsorption is supported and limited by a number of positioning wheels 10, so that the lens body 100 will not shift during subsequent grinding, thereby avoiding the lens from shifting due to uneven force and affecting the overall sub-surface defect grinding accuracy.

[0034] At the same time, after completing the grinding of sub-surface defects on the upper surface and side surfaces of the lens, people often need to manually turn the lens over so as to grind the sub-surface defects on the lower surface of the lens. In the process of manually turning the lens over, the lens position needs to be repositioned, which is inefficient. Therefore, after completing the grinding of sub-surface defects on the upper surface and side surfaces of the lens body 100, the polishing belt 15 is controlled to move and rewind and reset, and then the external pump is controlled to pass gas into the blowing pipe 123, and the upper surface of the ground lens body 100 is blown through the blowing pipe 123 inclined toward the center of the vacuum suction cup 6 to blow away the polishing liquid and debris remaining on the upper surface, and then the vacuum suction cup 6 is controlled to stop grinding the lower surface of the lens body 100. The electric slider 8 is controlled to drive the positioning wheel 10 to move, and the lens body 100 is clamped and fixed. Then, the electric push rod 19 is controlled to drive the positioning wheel 10 and the clamped lens body 100 to move upward, so that the upper surface of the lens body 100 contacts the vacuum suction cup 132, and then the external pump is controlled to suck through the pipeline and the vent plate 133 in sequence, so that the upper surface of the lens body 100 is adsorbed through the vacuum suction cup 132 to fix the lens body 100, and the positioning wheel 10 is controlled to release and stop clamping the lens body 100, so that it only supports and limits the side of the lens body 100; then the electric slide plate 102 on the lower side is controlled to drive the corresponding parts to move, so that the upper surface of the electric slide plate 102 on the lower side contacts the lens body 10 0, and control the lower surface of the electric slide 102 on the upper side to move and align with the edge of the upper surface of the lens body 100, then control the micro motor 103 on the lower electric slide 102 to drive the corresponding fixing plate 11 to rotate upward, so that the fixing plate 11 on the lower side rotates to an inclined upward state toward the lower surface of the lens body 100, and then control the electric push rod 12 on the lower fixing plate 11 to drive the corresponding mounting frame 13 and the guide roller 14 to move along the lower surface of the lens body 100 toward the center of the lens body 100, and control the electric winding drum 16 on the lower fixing plate 11 to unwind the polishing belt 15 during the movement, and perform the same operation as above to fit the polishing belt 15 to the lower surface of the lens body 100, and then control the annular DD motor The second 131 drives the second vacuum suction cup 132 and the fixed lens body 100 to rotate, and performs sub-surface defect grinding on the lower surface of the lens body 100. During the grinding process, the rotating lens body 100 is also supported and limited by the positioning wheel 10 to prevent the lens body 100 from being offset when rotating, which affects the overall sub-surface defect grinding accuracy. When grinding the sub-surface defects on the lower surface of the lens body 100, the external circulation suction mechanism is controlled to pass the polishing liquid into the second water delivery pipe 113 and the second annular pipe 114, and the polishing liquid is sprayed from the nozzle arranged obliquely upward from the second annular pipe 114 toward the center of the vacuum suction cup 16, so as to lubricate and cool the lower surface of the lens body 100 and ensure the overall sub-surface defect grinding effect.The positioning wheel 10 drives the lens body 100 to move after grinding, and the upper surface of the lens body 100 is adsorbed and fixed by the second vacuum suction cup 132, and the polishing belt 15 is pulled out and attached to its lower surface in cooperation with the guide roller 14 on the lower fixing plate 11, so that the sub-surface defects on the upper and lower surfaces of the lens body 100 can be fully ground without re-positioning the lens position, thereby improving the overall sub-surface defect grinding efficiency. ;

[0035] Example 2 On the basis of Example 1, Figure 4 As shown, it also includes a rotating motor 201 and a baffle 202; the fixed rod 3 is rotatably connected to the cylinder 1; the cylinder 1 is fixedly connected to the rotating motor 201, and the output shaft of the rotating motor 201 is fixedly connected to the fixed rod 3; the baffle 202 is fixedly connected to the bottom of the fixed platform 4, and the upper and lower sides of the baffle 202 are provided with inclined surfaces to facilitate the flow of debris and polishing liquid.

[0036] A method for using a quartz lens grinding device for removing sub-surface defects comprises the following steps: Step 1: First, the lens body 100 with artificial sub-surface defects is placed on the placement truncated table 7, and the lens body 100 is positioned and clamped by the positioning wheel 10, and then the cover plate 2 is covered, and the positioning wheel 10 is controlled to drive the lens body 100 to move, so that the lens body 100 contacts and is fixed with the vacuum suction cup 1 6; Step 2: Control the electric push rod 12 on the upper fixed plate 11 to drive the corresponding guide roller 14 to move along the upper surface of the lens body 100, so that the polishing belt 15 is in contact with the upper surface, and then drive the lens body 100 to rotate to grind the sub-surface defects on the upper surface and side surfaces; Step 3: After the sub-surface defects on the upper surface and side of the lens body 100 are ground, the vacuum suction cup 1 6 is controlled to stop fixing the lens body 100, and the positioning wheel 10 is controlled to drive the lens body 100 to move, so that the upper surface of the lens body 100 contacts the vacuum suction cup 2 132, and the lens body 100 is fixed by the vacuum suction cup 2 132, and then the sub-surface defects on its lower surface are ground by the polishing belt 15, and the sub-surface defect grinding process of the lens body 100 is completed.

[0037] On the basis of the above-mentioned embodiment 1, when the vacuum suction cup 2 132 adsorbs and fixes the upper surface of the lens body 100, and grinds the sub-surface defects of its lower surface through the polishing belt 15, the debris and polishing liquid generated by the grinding will fall downward and fall onto the vacuum suction cup 16 below, thereby affecting the subsequent use of the vacuum suction cup 16. Therefore, after the vacuum suction cup 2 132 adsorbs and fixes the lens body 100, at the same time, the rotating motor 201 is controlled to drive the fixing rod 3, the fixing table 4, the annular DD motor 15 and the vacuum suction cup 16 to rotate 180 degrees, so that the vacuum suction cup 16 rotates downward, thereby preventing the debris generated by the grinding from falling directly into the vacuum suction cup 16 and affecting the subsequent use of the vacuum suction cup 16; and, a baffle 202 is provided at the bottom of the fixing table 4. When the fixing table 4 rotates, the baffle 202 blocks and guides the debris away from the vacuum suction cup 16, thereby preventing the debris from flowing down along the surface of the fixing table 4 and contacting the vacuum suction cup 16.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quartz lens grinding device for removing sub-surface defects, comprising a cylinder (1), a cover plate (2), a fixing rod (3), a fixing platform (4), an annular DD motor (5) and a vacuum suction cup (6); the cylinder (1) is rotatably connected to the cover plate (2), and a handle is provided on the surface of the cover plate (2); the interior of the cylinder (1) is connected to the fixing rod (3); the fixing rod (3) is fixedly connected to the fixing platform (4); the fixing platform (4) is fixedly connected to the annular DD motor (5); the rotating part of the annular DD motor (5) is fixedly connected to the vacuum suction cup (6), a cavity is provided inside the fixing platform (4), the fixing platform (4) is connected to a pipeline, the pipeline passes through the right end of the fixing rod (3) and is connected to an external pump, and the fixing platform (4) is rotatably connected and connected to the vacuum suction cup (6); the characteristic is that The invention also comprises a placement truncated table (7), an electric slider (8), an electric push rod (9), a positioning wheel (10) and a grinding component; the cover plate (2) is fixedly connected to the placement truncated table (7); the placement truncated table (7) is slidably connected to a plurality of electric sliders (8); each electric slider (8) is fixedly connected to an electric push rod (9); each electric push rod (9) is provided with a positioning wheel (10) for positioning and fixing the lens body (100); and the inside of the cylinder (1) is connected to a grinding component for grinding sub-surface defects of the lens body (100).

2. A quartz lens grinding device for removing sub-surface defects according to claim 1, characterized in that: The grinding component comprises an adjustment unit, a fixed plate (11), a second electric push rod (12), a mounting frame (13), a guide roller (14), a polishing belt (15) and an electric winding drum (16); the cylinder (1) is connected to the adjustment unit; the adjustment unit is connected to two fixed plates (11); each fixed plate (11) is fixedly connected to a plurality of second electric push rods (12); the telescopic parts of all second electric push rods (12) on the same fixed plate (11) are fixedly connected to a mounting frame (13); each fixed plate (11) is installed with an electric winding drum (16); one of the electric winding drums (16) is fixedly connected to and winds up a polishing belt (15), and the other end of the polishing belt (15) is fixedly connected to and winds up inside another electric winding drum (16); each mounting frame (13) is rotatably connected to two guide rollers (14), and the polishing belt (15) passes between each two guide rollers (14).

3. A quartz lens grinding device for removing sub-surface defects according to claim 2, characterized in that: The adjustment unit comprises an electric guide rail (101), an electric slide plate (102) and a micro motor (103); the inner wall of the cylinder (1) is fixedly connected to the electric guide rail (101); the electric guide rail (101) is slidably connected to two electric slide plates (102); each electric slide plate (102) is fixedly connected to a micro motor (103); the electric slide plate (102) is rotatably connected to a fixed plate (11), and an output shaft of the micro motor (103) is fixedly connected to the fixed plate (11).

4. A quartz lens grinding device for removing sub-surface defects according to any one of claims 2 to 3, characterized in that: It also includes an elastic telescopic plate (17) and a pressing roller (18); each mounting frame (13) is fixedly connected to two elastic telescopic plates (17); the telescopic parts of the two elastic telescopic plates (17) on the same mounting frame (13) are rotatably connected to a pressing roller (18), and the pressing roller (18) is located on a side of the polishing belt (15) close to the inner wall of the cylinder (1).

5. A quartz lens grinding device for removing sub-surface defects according to claim 4, characterized in that: The invention also comprises a water delivery pipe (111), an annular pipe (112), a water delivery pipe (113), an annular pipe (114), a drainage pipe (115) and a filter screen (116); the cylinder (1) is fixedly connected with the filter screen (116), and the filter screen (116) is located below the fixed platform (4); the bottom of the cylinder (1) is connected with the drainage pipe (115), and the drainage pipe (115) is connected with the external circulation suction mechanism; the cylinder (1) is fixedly connected with the annular pipe (112), and the annular pipe (112) is provided with a plurality of nozzles inclined downwardly toward the center of the vacuum suction cup (6), and the annular pipe (112) is located at the vacuum suction cup (6). The cylinder (1) is provided with a water pipe (111) which passes through and is fixedly connected to the cylinder (1), and the water pipe (111) is connected to the annular pipe (112); the cylinder (1) is fixedly connected to the annular pipe (114), and the annular pipe (114) is provided with a plurality of nozzles which are arranged upwardly and obliquely toward the vacuum suction cup (6), and the annular pipe (114) is located below the vacuum suction cup (6); the cylinder (1) is provided with a water pipe (113) which passes through and is fixedly connected to the cylinder (1), and the water pipe (113) is connected to the annular pipe (114), and both the water pipe (111) and the water pipe (113) are connected to an external circulation suction mechanism.

6. A quartz lens grinding device for removing sub-surface defects according to claim 5, characterized in that: It also includes a hose (121) and a circular tube (122); each electric winding drum (16) is fixedly connected to a circular tube (122), and each circular tube (122) is provided with a plurality of nozzles inclined toward the polishing belt (15); each circular tube (122) is connected to a hose (121), and the upper hose (121) is connected to the annular tube 1 (112), and the lower hose (121) is connected to the annular tube 2 (114).

7. A quartz lens grinding device for removing sub-surface defects according to claim 1, characterized in that: It also includes an annular DD motor 2 (131), a vacuum suction cup 2 (132) and a ventilation disc (133); the placement truncated table (7) is fixedly connected to the annular DD motor 2 (131); the rotating part of the annular DD motor 2 (131) is fixedly connected to the vacuum suction cup 2 (132), and the annular DD motor 2 (131) and the annular DD motor 1 (5) are arranged concentrically from top to bottom; the cover plate (2) is fixedly connected to the ventilation disc (133), the ventilation disc (133) is connected to an external pump through a pipeline, and the ventilation disc (133) passes through the cover plate (2) and the placement truncated table (7), and the ventilation disc (133) is rotationally connected and connected to the vacuum suction cup 2 (132).

8. A quartz lens grinding device for removing sub-surface defects according to claim 7, characterized in that: It also includes a blowing pipe (123); the cylinder (1) is fixedly connected with the blowing pipe (123), the blowing pipe (123) is connected to an external pump, and the blowing pipe (123) is arranged to be inclined toward the center of the vacuum suction cup (6).

9. A quartz lens grinding device for removing sub-surface defects according to claim 1, characterized in that: It also includes a rotating motor (201) and a baffle (202); the fixed rod (3) is rotatably connected to the cylinder (1); the cylinder (1) is fixedly connected to the rotating motor (201), and the output shaft of the rotating motor (201) is fixedly connected to the fixed rod (3); the bottom of the fixed platform (4) is fixedly connected to the baffle (202), and the upper side and the lower side of the baffle (202) are both provided with inclined surfaces.

10. A method for using a quartz lens grinding device for removing sub-surface defects, characterized in that: The method of use is a quartz lens grinding device for removing sub-surface defects according to claim 9, comprising the following steps: Step 1: first, manually placing a lens body (100) with sub-surface defects on a placing truncated table (7), and positioning and clamping the lens body (100) by a positioning wheel (10), then covering the cover plate (2), and controlling the positioning wheel (10) to drive the lens body (100) to move, so that the lens body (100) contacts and is fixed to the vacuum suction cup (6); Step 2: controlling the electric push rod (12) on the upper fixing plate (11) to drive the corresponding guide roller (14) to move along the upper surface of the lens body (100), so that the polishing belt ( 15) is fitted with its upper surface, and then the lens body (100) is driven to rotate to grind the sub-surface defects on its upper surface and side surfaces; step three: after the grinding of the sub-surface defects on the upper surface and side surfaces of the lens body (100) is completed, the vacuum suction cup 1 (6) is controlled to stop fixing the lens body (100), and the positioning wheel (10) is controlled to drive the lens body (100) to move, so that the upper surface of the lens body (100) contacts the vacuum suction cup 2 (132), and the lens body (100) is fixed by the vacuum suction cup 2 (132), and then the sub-surface defects on its lower surface are ground by the polishing belt (15), and the sub-surface defect grinding process of the lens body (100) is completed.

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