An optical lens grinding machine for precision instruments

Abstract

This invention belongs to the field of polishing technology, specifically a polishing machine for optical lenses used in precision instruments. It includes a liquid storage tank, a frame, a polishing machine, and a filtration module. The filtration module includes two cylinders located outside the first frame, fixedly connected to it, with cylinders on adjacent frames staggered. The output end of each cylinder passes through the first frame and is fixedly connected to a filter screen. Filter rollers are positioned between adjacent filter screens. There is at least one filter roller. A stop block is provided at the end of each filter screen near the cylinder. The moving filter screen rubs against the filter rollers in the middle, and the adsorption strips on the filter screen and the alumina filling inside the filter rollers work together to reduce the probability of filter screen clogging, improve the filtration effect of the filtration module, extend the service life of the filter screen, increase the recycling rate of the polishing liquid, and reduce production costs.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding, in particular to an optical lens grinding machine for precision instruments. Background Art

[0002] Optical lenses are widely used in production and life, and all optical lenses need to be polished during the production process. Optical lens polishing manufacturing equipment can polish optical lenses according to different requirements to make them meet the requirements of optical instruments.

[0003] The grinding equipment will easily generate a lot of dust during the grinding process, which affects the working environment of the staff and the grinding equipment and endangers the health of the staff, so a flushing step is added to the existing grinding process. However, the flushing step in the existing grinder generally flushes the lens during the grinding process and filters the grinding fluid after the grinding is completed.

[0004] However, the filter screen used to filter the polishing liquid in the prior art is generally immobile. After long-term use, the filter screen becomes clogged, causing the filtration speed of the filter screen to slow down or even fail to filter, resulting in debris in the unfiltered polishing liquid remaining on the filter screen and the workbench, affecting the lens polishing quality.

[0005] In view of this, in order to overcome the above technical problems, the present invention designs an optical lens grinder for precision instruments to solve the above technical problems. Summary of the invention

[0006] The technical problem to be solved by the present invention is: an optical lens grinder for precision instruments provided by the present invention can greatly improve the filtering effect of the polishing liquid during the process of polishing the lens, enhance the ability to recycle the polishing liquid, improve production efficiency and reduce production costs.

[0007] An optical lens grinding machine for precision instruments comprises a liquid storage tank, a liquid replacement port is provided on one side of the bottom of the liquid storage tank, and a liquid inlet is provided in the middle of the upper end of the liquid storage tank; both sides of the liquid inlet are fixedly connected to a No. 1 rack, and a filter module is provided between adjacent No. 1 racks, and the filter module is used to filter the polishing liquid used during polishing;

[0008] Water pumps are provided on both sides of the first frame, the water pumps are fixedly connected to the liquid storage tank, the input end of the water pump is connected to the liquid storage tank through a water pipe, the output end of the water pump is connected to a nozzle, and the end of the nozzle away from the output end of the water pump is used to wash the polished lens;

[0009] A No. 2 frame is provided on one side of the water pump, and the No. 2 frame is fixedly connected to the liquid storage tank; a hydraulic cylinder is fixedly connected to the top of the No. 2 frame; an output end of the hydraulic cylinder is fixedly connected to a mobile platform; a grinder is provided in the middle of the mobile platform; an output end of one side of the grinder passes through the No. 2 frame; a grinding platform is provided above the filter module, and the grinding platform is fixedly connected to the No. 1 frame; the output end of the grinder is aligned with the grinding platform;

[0010] The filter module includes a cylinder, which is located outside the No. 1 frame. There are two cylinders and they are fixedly connected to the No. 1 frame. The cylinders on adjacent No. 1 frames are staggered. The output end of the cylinder passes through the No. 1 frame and is fixedly connected to the filter screen. A filter roller is provided between adjacent filter screens. There are at least one filter roller. A block is provided at one end of the filter screen close to the cylinder.

[0011] Preferably, the filter roller is composed of a rubber layer and an activated carbon layer, and the activated carbon layer is coated by the rubber layer; adsorption holes are provided on the surface of the rubber layer.

[0012] Preferably, the cross-sectional shape of the filter roller is an elliptical cylinder.

[0013] Preferably, the side of the filter screen away from the cylinder output end is fixedly connected to the elastic cloth 17, and the side of the elastic cloth 17 away from the cylinder output end is fixedly connected to the first frame.

[0014] Preferably, one or more raised adsorption strips are distributed on the side of the filter screen that contacts the filter roller.

[0015] Preferably, a cavity is provided inside the adsorption strip, and filter holes are provided on the surface of the adsorption strip, the filter holes are connected to the cavity, and the cavity is filled with aluminum oxide particles.

[0016] The beneficial effects of the present invention are as follows:

[0017] The present invention provides an optical lens grinder for precision instruments, which rubs the filter roller in the middle of the filter screen with a moving filter screen, and cooperates with the adsorption strips arranged on the filter screen and the aluminum oxide filled inside the filter roller, thereby reducing the probability of clogging of the filter screen, improving the filtering effect of the filtering module, extending the service life of the filter screen, improving the recovery rate of the grinding liquid, and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is the main figure of the present invention;

[0020] Figure 2 is a cross-sectional view of the filter roller 13 of the present invention;

[0021] Figure 3 is a cross-sectional view of the adsorption strip 14 of the present invention;

[0022] In the figure: liquid storage tank 1, water pump 2, No. 1 frame 3, water pipe 4, No. 2 frame 5, hydraulic cylinder 6, mobile platform 7, grinder 8, grinding head 9, grinding platform 10, cylinder 11, stopper 12, filter roller 13, adsorption strip 14, filter screen 15, glass baffle 16, elastic cloth 17, adsorption hole 131, activated carbon layer 132, rubber layer 133, filter hole 141, aluminum oxide 142; DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] The present invention provides an optical lens grinding machine for precision instruments, comprising a liquid storage tank 1, a liquid replacement port is provided on one side of the bottom of the liquid storage tank 1, and a liquid inlet is provided in the middle of the upper end of the liquid storage tank 1; both sides of the liquid inlet are fixedly connected to a first rack 3, and a filter module is provided between adjacent first racks 3, and the filter module is used to filter the polishing liquid used during polishing;

[0025] Water pumps 2 are provided on both sides of the first frame 3. The water pumps 2 are fixedly connected to the liquid storage tank 1. The input end of the water pump 2 is connected to the liquid storage tank 1 through a water pipe 4. The output end of the water pump 2 is connected to a nozzle. The end of the nozzle away from the output end of the water pump 2 is used to rinse the polished lens.

[0026] A second frame 5 is provided on one side of the water pump 2, and the second frame 5 is fixedly connected to the liquid storage tank 1; a hydraulic cylinder 6 is fixedly connected to the top of the second frame 5; a mobile platform 7 is fixedly connected to the output end of the hydraulic cylinder 6; a grinder 8 is provided in the middle of the mobile platform 7; an output end of one side of the grinder 8 passes through the second frame 5; a grinding platform 10 is provided above the filter module, and the grinding platform 10 is fixedly connected to the first frame 3; the output end of the grinder 8 is aligned with the grinding platform 10;

[0027] The filtering module includes a cylinder 11, which is located outside the No. 1 frame 3. There are two cylinders 11, which are fixedly connected to the No. 1 frame 3, and the cylinders 11 on adjacent No. 1 frames 3 are staggered. The output end of the cylinder 11 passes through the No. 1 frame 3 and is fixedly connected to the filter screen 15. A filter roller 13 is provided between adjacent filter screens 15. The number of the filter rollers 13 is at least one. A stopper 12 is provided at one end of the filter screen 15 close to the cylinder 11.

[0028] When the grinder 8 starts to operate, the mobile platform 7 moves downward with the extension and retraction of the output end of the hydraulic cylinder 6 on the second frame 5, and the grinder 8 on the mobile platform 7 also moves downward until the grinding head 9 of the grinder 8 contacts the lens placed on the grinding platform 10; when the grinding head 9 starts to rotate, the water pump 2 works, and the input end of the water pump 2 sucks the grinding liquid out of the liquid storage tank 1 through the water pipe 4 connected to the liquid storage tank 1, and sprays it on the grinded lens and the grinding head 9 of the grinder 8 from the output end, so as to wash the debris generated during the grinding process and cool the grinding head 9; at the same time, the cylinders 11 displaced on both sides of the first frame 3 start to work, and the two cylinders 11 drive the two The filter screens 15 move towards each other, which will produce a diversion effect on the polishing liquid flowing down, increasing the time the polishing liquid stays on the filter screen 15, so that the polishing liquid is better filtered on the filter screen 15, and the filtering effect of the filter screen 15 on the polishing liquid is improved; while the filter screen 15 moves, it also rubs the filter roller 13 between the two filter screens 15. During the rubbing process of the filter roller 13, the filter roller 13 moves back and forth in the middle of the filter screen 15, causing the filter screen 15 to shake up and down, reducing the probability of clogging of the filter screen 15, and further improving the filtering effect of the filter screen 15; the polishing liquid after filtering falls back into the liquid storage tank 1 again, and is used again by the water pump 2 on the liquid storage tank 1. Compared with the prior art, the present invention reduces the probability of clogging of the filter screen 15, prolongs the use time of the filter screen 15, and improves the recycling rate of the polishing liquid.

[0029] As a specific embodiment of the present invention, the filter roller 13 is composed of a rubber layer 132 and an activated carbon layer 133 , and the activated carbon layer 133 is coated by the rubber layer 132 ; adsorption holes 131 are opened on the surface of the rubber layer 132 .

[0030] During the back-and-forth movement of the filter roller 13, the polishing liquid flows out from the filter mesh 15, flows into the activated carbon layer 133 through the adsorption holes 131 on the surface of the filter roller 13, and the activated carbon layer 133 adsorbs impurities in the polishing liquid, thereby improving the filtering effect of the polishing liquid; at the same time, the activated carbon expands after adsorbing impurities or polishing liquid in the polishing liquid, thereby increasing the volume of the filter roller 13, thereby increasing the shaking amplitude of the filter mesh 15 in the process of rubbing the filter roller 13 with the filter mesh 15, further reducing the probability of filter mesh clogging, and further improving the filtering effect.

[0031] As a specific implementation of the present invention, the cross-sectional shape of the filter roller 13 is an elliptical cylinder.

[0032] The filter roller 13 rotates continuously while being rubbed by the filter screen 15. Since the filter roller 13 is an elliptical cylinder, the elliptical shape will change the vibration amplitude of the filter screen 15 during rotation, thereby further reducing the probability of clogging of the filter screen 15 and further improving the filtering effect.

[0033] As a specific implementation of the present invention, the side of the filter screen 15 away from the output end of the cylinder 11 is fixedly connected to the elastic cloth 17, and the side of the elastic cloth 17 away from the output end of the cylinder 11 is fixedly connected to the first frame 3.

[0034] When the filter screen 15 moves towards each other, the end of the filter screen 15 away from the piston rod of the cylinder 11 is fixedly connected to the No. 1 frame 3 by an elastic cloth 17. When the piston rod of the cylinder 11 stretches the filter screen 15 and the speed changes, the elastic cloth 17 will be deformed to enhance the shaking of the filter screen 15, thereby improving the filtering effect of the filter screen 15 on the polishing liquid. For example, when the speed of the piston rod changes from 2m / s to 1m / s, the elastic cloth 17 shakes due to inertia, thereby driving the shaking of the filter screen.

[0035] As a specific embodiment of the present invention, one or more raised adsorption strips 14 are distributed on the side of the filter screen 15 that contacts the filter roller 13 .

[0036] When the filter mesh 15 rubs the filter roller 13, the raised adsorption strips 14 on the filter mesh 15 cooperate with the filter roller 13, and the filter roller 13 rotates to contact the raised adsorption strips 14, so that the filter mesh 15 rises and falls more, increasing the shaking amplitude of the filter mesh 15, further reducing the probability of blockage of the filter mesh 15, thereby further improving the filtering effect.

[0037] As a specific embodiment of the present invention, a cavity is provided inside the adsorption strip 14 , and filter holes 141 are provided on the surface of the adsorption strip 14 . The filter holes 141 are connected to the cavity, and the cavity is filled with aluminum oxide 142 particles.

[0038] While the adsorption strip 14 cooperates with the filter roller 13 to increase the fluctuation amplitude of the filter screen 15, the polishing liquid enters the adsorption strip 14 through the filter hole 141 on the surface of the adsorption strip 14, and the aluminum oxide 142 inside the adsorption strip 14 adsorbs impurities in the polishing liquid. The impurities in the polishing liquid are further adsorbed, thereby improving the filtering effect of the filter screen 15 on the polishing liquid.

[0039] The specific workflow is as follows:

[0040] When the grinder 8 starts to operate, the mobile platform 7 moves downward as the output end of the hydraulic cylinder 6 on the second frame 5 is extended and retracted, and the grinder 8 on the mobile platform 7 also moves downward until the grinding head 9 of the grinder 8 contacts the lens placed on the grinding platform 10; when the grinding head 9 starts to rotate, the water pump 2 works, and the input end of the water pump 2 sucks the grinding liquid out of the liquid storage tank 1 through the water pipe 4 connected to the liquid storage tank 1, and sprays it on the polished lens and the grinding head 9 of the grinder 8 from the output end, so as to wash away the debris generated during the grinding process and reduce the drop of the grinding head 9. Temperature; at the same time, the cylinders 11 staggered on both sides of the No. 1 frame 3 start to work, and the two cylinders 11 drive the two filter screens 15 to move toward each other. The movement of the filter screens 15 toward each other will produce a diversion effect on the polishing liquid flowing down, and the filter screens 15 are also kneading the filter roller 13 between the two filter screens 15 while moving. In the process of kneading the filter roller 13, the filter roller 13 moves back and forth in the middle of the filter screen 15, so that the filter screen 15 shakes up and down, reducing the probability of clogging of the filter screen 15; the filtered polishing liquid falls back into the liquid storage tank 1 again, and is used again by the water pump 2 on the liquid storage tank 1.

[0041] When the filter screen 15 moves towards each other, the end of the filter screen 15 away from the piston rod of the cylinder 11 is fixedly connected to the No. 1 frame 3 by an elastic cloth 17. When the piston rod of the cylinder 11 stretches the filter screen 15 and the speed changes, the elastic cloth 17 will deform, thereby enhancing the shaking of the filter screen 15.

[0042] The filter roller 13 rotates continuously during the back-and-forth movement. Because the filter roller 13 is an elliptical cylinder, the elliptical shape will change the vibration amplitude of the filter screen 15 when it rotates. Then the polishing liquid flows out from the filter screen 15, passes through the adsorption holes 131 on the surface of the filter roller 13 and flows into the activated carbon layer 133. The activated carbon layer 133 adsorbs impurities in the polishing liquid. At the same time, the activated carbon expands after adsorbing impurities or polishing liquid in the polishing liquid, so that the volume of the filter roller 13 becomes larger, thereby increasing the vibration amplitude of the filter screen 15 during the process of the filter screen 15 rubbing the filter roller 13.

[0043] When the filter mesh 15 rubs the filter roller 13, the raised adsorption strips 14 on the filter mesh 15 cooperate with the filter roller 13, and the filter roller 13 rotates to contact the raised adsorption strips 14, so that the filter mesh 15 rises and falls more, increasing the shaking amplitude of the filter mesh 15, further reducing the probability of blockage of the filter mesh 15, thereby further improving the filtering effect.

[0044] While the adsorption strip 14 cooperates with the filter roller 13 to increase the fluctuation amplitude of the filter screen 15, the polishing liquid enters the adsorption strip 14 through the filter hole 141 on the surface of the adsorption strip 14, and the aluminum oxide 142 inside the adsorption strip 14 adsorbs impurities in the polishing liquid. The impurities in the polishing liquid are further adsorbed, thereby improving the filtering effect of the filter screen 15 on the polishing liquid.

[0045] After the optical lens grinder for precision instruments in the present invention has been used for a period of time, the filter screen 15 needs to be removed from the connection with the cylinder 11 for replacement, including the filter roller 13, the aluminum oxide 142 in the adsorption strip 14, and the activated carbon layer 133 in the filter roller 13 also need to be replaced; the filter screen 15 and the cylinder 11, as well as the elastic cloth 17 and the filter screen 15 are all connected in a detachable fixed manner, such as bonding, splicing, etc., which is convenient for disassembly and replacement, thereby reducing the impact on the filtering effect of the machine due to long-term use.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An optical lens grinding machine for precision instruments, characterized in that: The invention comprises a liquid storage box (1), wherein a liquid replacement port is provided on one side of the bottom of the liquid storage box (1), and a liquid inlet is provided in the middle of the upper end of the liquid storage box (1); both sides of the liquid inlet are fixedly connected to a No. 1 rack (3), and a filter module is provided between adjacent No. 1 racks (3), and the filter module is used for filtering the polishing liquid used during polishing; Water pumps (2) are provided on both sides of the first frame (3), the water pumps (2) are fixedly connected to the liquid storage tank (1), the input end of the water pump (2) is connected to the liquid storage tank (1) through a water pipe (4), the output end of the water pump (2) is connected to a nozzle, and the end of the nozzle away from the output end of the water pump (2) is used to wash the polished lens; A second frame (5) is provided on one side of the water pump (2), and the second frame (5) is fixedly connected to the liquid storage tank (1); a hydraulic cylinder (6) is fixedly connected to the top of the second frame (5); an output end of the hydraulic cylinder (6) is fixedly connected to a mobile platform (7); a grinder (8) is provided in the middle of the mobile platform (7); an output end of one side of the grinder (8) passes through the second frame (5); a grinding platform (10) is provided above the filter module, and the grinding platform (10) is fixedly connected to the first frame (3); the output end of the grinder (8) is aligned with the grinding platform (10); The filter module comprises a cylinder (11), the cylinder (11) being located outside the first frame (3), the number of the cylinders (11) being two, and being fixedly connected to the first frame (3), and the cylinders (11) on adjacent first frames (3) being arranged in a staggered manner; the output end of the cylinder (11) passes through the first frame (3) and is fixedly connected to a filter screen (15), and a filter roller (13) is provided between adjacent filter screens (15); the number of the filter rollers (13) is more than one; and a stopper (12) is provided at one end of the filter screen (15) close to the cylinder (11); The filter roller (13) is composed of a rubber layer (132) and an activated carbon layer (133), wherein the activated carbon layer (133) is coated by the rubber layer (132); adsorption holes (131) are provided on the surface of the rubber layer (132); The cross-sectional shape of the filter roller (13) is an elliptical cylinder; The side of the filter screen (15) away from the output end of the cylinder (11) is fixedly connected to the elastic cloth, and the side of the elastic cloth away from the output end of the cylinder (11) is fixedly connected to the first frame (3); One or more raised adsorption strips (14) are distributed on the side of the filter screen (15) that contacts the filter roller (13); The adsorption strip (14) has a cavity inside, and a filter hole (141) is provided on the surface of the adsorption strip (14), the filter hole (141) is connected to the cavity, and the cavity is filled with aluminum oxide (142) particles.

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