CN108788942B - Coarse grinding process of optical lens - Google Patents
Coarse grinding process of optical lens Download PDFInfo
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- CN108788942B CN108788942B CN201810745652.6A CN201810745652A CN108788942B CN 108788942 B CN108788942 B CN 108788942B CN 201810745652 A CN201810745652 A CN 201810745652A CN 108788942 B CN108788942 B CN 108788942B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/005—Blocking means, chucks or the like; Alignment devices
- B24B13/0052—Lens block moulding devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/01—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools
- B24B13/012—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools conformable in shape to the optical surface, e.g. by fluid pressure acting on an elastic membrane
Abstract
The invention belongs to the technical field of lens production, and particularly relates to a rough grinding process of an optical lens, which comprises the following steps: sawing and cutting an optical glass blank according to the size of the blank; grinding out uneven traces left in sawing; slicing and cutting according to the size of the plane blank of the part; gluing the parts into strips in the thickness direction of the parts; grinding the excircle according to the size requirement; obtaining a single round glass sheet by cleaning and degumming; grinding the flat surface of the wafer into a spherical surface according to the requirements of a drawing by optical glass mirror polishing equipment; the sharp edges of the optical glass are ground off and cleaned. The method can effectively improve the rough grinding efficiency of the optical lens, can reduce the rejection rate of the optical lens in the rough grinding process, and is suitable for rough grinding of large-batch optical lenses.
Description
Technical Field
The invention belongs to the technical field of lens production, and particularly relates to a rough grinding process of an optical lens.
Background
With the development of society, the application of optical elements is more and more extensive, and a lens is a common optical element and is commonly used in microscopes, astronomical telescopes, magnifying lenses, projectors and cameras; with the development of society, people have higher and higher requirements on various aspects of lenses, so that the requirements on the processing precision of the lenses are improved. The rough grinding is an important step in the lens processing process, and the quality of the rough grinding directly determines the subsequent processing procedure and influences the speed of subsequent processing.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the rough grinding process of the optical lens, and the grinding head of the optical glass mirror surface grinding equipment adopted by the process can present two forms of a plane and a spherical surface, so that the spherical surface opening speed in the grinding process of the lens can be effectively improved; meanwhile, the rolling grinding head arranged on the grinding head of the optical glass mirror surface grinding equipment adopted by the process can avoid that the optical glass is excessively ground due to misoperation in the grinding process, the rejection rate is reduced, and the cost is saved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a rough grinding process of an optical lens, which comprises the following steps:
the method comprises the following steps: sawing and cutting an optical glass blank according to the size of the blank;
step two: after the glass blank is obtained in the first step, grinding out uneven traces left in sawing;
step three: after the grinding in the second step, slicing and cutting are carried out according to the size of the plane blank of the part;
step four: after slicing and squaring in the third step, gluing the slices into long strips according to the thickness direction of the part;
step five: after the adhesive tape is finished in the fourth step, grinding the outer circle according to the size requirement;
step six: grinding the outer circle in the step five, and then cleaning and degumming to obtain a single round glass sheet;
step seven: after the round glass sheet is obtained in the sixth step, the flat surface of the round sheet is ground into a spherical surface according to the requirements of a drawing through optical glass mirror surface polishing equipment;
step eight: grinding the spherical surface in the seventh step, grinding the sharp edge of the optical glass and cleaning;
the optical glass mirror surface polishing equipment in the seventh step comprises a base, a first motor, a spraying module, a first connecting shaft, a fixed seat, a position adjusting module, a second motor, a connecting seat and a polishing head; the first motor is fixed on the base and is positioned at the right end of the base; the spraying module is fixed on the base and positioned on the right side of the base, the spraying module is used for cooling the optical glass in the processing process, and meanwhile, the spraying module can also remove scraps on the optical glass, so that the influence of the glass scraps is eliminated; the left end of one connecting shaft penetrates through the spraying module and is fixed on an output shaft of the motor; the fixed seat is fixed at the right end of the first connecting shaft and used for fixing the optical glass; the position adjusting module is positioned on the right side of the fixed seat, the position adjusting module is fixed on the base, and the position adjusting module is used for adjusting the position of the polishing head, so that the polishing head can polish the optical glass in multiple angles, and the polishing precision is improved; the second motor is fixed at the top of the position adjusting module; the connecting seat is fixed on the left side of the second motor through an output shaft of the second motor; the polishing head is arranged at the left end of the connecting seat and used for polishing the optical glass; the polishing head comprises an adjustable polishing head, a connecting block, an electromagnet and a connecting shaft V; the adjustable grinding head consists of a disc grinding head and a plurality of annular ring grinding heads, a plurality of chutes are circumferentially arranged on the inner walls of the disc grinding head and the annular ring grinding heads, a plurality of rectangular convex blocks are circumferentially arranged at the right ends of the disc grinding head and the annular ring grinding heads, the disc grinding head and the annular ring grinding head are connected through the convex blocks, the annular ring grinding heads are mutually connected through the convex blocks, the right sides of the disc grinding head and the annular ring grinding head are provided with magnetism and have the same polarity, the disc grinding head can be retracted into the first annular ring grinding head on the right side of the disc grinding head, and the annular ring grinding heads can be sequentially retracted into the next annular ring grinding; the connecting block is positioned on the right side of the adjustable grinding head and is disc-shaped, and the diameter of the connecting block is the same as that of the rightmost circular grinding head; the electromagnet is arranged in the connecting block and used for adjusting the shape of the polishing head, and the spherical surface and the plane of the optical glass can be polished by the polishing head due to the change of the shape of the polishing head, so that the polishing head is prevented from being replaced for many times, and the working efficiency is improved; the left end of the connecting shaft five is connected with the connecting block, and the right end of the connecting shaft five is connected with the connecting seat. When the grinding head is required to be spherical during working, the electromagnet is electrified, so that the polarity of the left end of the electromagnet is the same as the polarity of the right ends of the disc grinding head and the circular grinding head, and the grinding head is in a spherical shape under the action of repulsion force; when the polishing head is required to be in a planar form, the direction of current flowing in the electromagnet is changed, the polarity of the left end of the electromagnet is different from the polarities of the disc polishing head and the right end of the annular polishing head, the polishing head is in a planar state under the action of attraction force, the polishing head can be polished aiming at the spherical surface and the planar surface of the optical glass due to the change of the shape of the polishing head, the frequent replacement of the polishing head is avoided, and the working efficiency is further improved.
The adjustable grinding head is also provided with a rolling grinding head; the rolling grinding head comprises a connecting rod and a spherical grinding head, the connecting rod is made of elastic materials, the connecting rod is connected to the left ends of the disc grinding head and the annular grinding head, the left end of the connecting rod is connected with a spherical block, a spherical cavity is arranged in the spherical grinding head, and the spherical grinding head is installed on the connecting rod through the spherical block. When the optical glass polishing device works, the rolling grinding head is in contact with the optical glass, when the contact force between the rolling grinding head and the optical glass is large, the connecting rod bends, the spherical grinding head rotates on the connecting rod, the contact force between the optical glass and the rolling grinding head is reduced, and the optical glass cannot be scrapped due to errors in the machining process.
The position adjusting module comprises a front position adjusting piece, a rear position adjusting piece, a vertical position adjusting piece and a left position adjusting piece and a right position adjusting piece; the front and rear position adjusting part comprises a first guide rail, a first sliding block, a first fixed block, a first screw and a third motor; the first guide rail is arranged at the top of the machine base; the first sliding block is arranged on the first guide rail; the first fixing block is mounted on the sliding block, a through hole is formed in the first fixing block in the vertical direction, and a first threaded hole is formed in the front-back direction of the first fixing block; the first screw rod is installed on the first fixing block through the first threaded hole; the motor III is arranged at the top of the base and behind the fixing block I, and is connected with the screw rod I and used for driving the screw rod I to rotate. When the adjusting device works, the motor III drives the screw rod I to rotate, and the screw rod I drives the fixed block I and the slide block I to move back and forth on the guide rail I, so that the front and back positions are adjusted.
The left and right position adjusting part comprises a second fixed block, a second guide rail, a second sliding block, a third fixed block, a fourth fixed block, a second screw and an adjusting wheel; the second fixing block is positioned above the first fixing block; the second guide rail is arranged on the second fixed block; the second sliding block is arranged on the second guide rail; the fixed block III is arranged on the sliding block II, and threaded holes II are formed in the left position and the right position of the fixed block III; the fourth fixed block is fixed at the right end of the second fixed block; the second screw penetrates through the second threaded hole to be rotatably mounted on the fourth fixing block; the adjusting wheel is installed on the fourth fixed block through the right end of the second screw rod and used for driving the second screw rod to rotate. When the adjusting device works, the adjusting wheel rotates to drive the second screw rod to rotate, and the second screw rod drives the third fixed block and the second sliding block to move left and right on the second guide rail together, so that the left and right positions are adjusted.
The vertical position adjusting part comprises a guide rail III, a slide block III, a fixed block V, a connecting shaft II and an electric cylinder; the machine base is also provided with a strip-shaped channel; the third guide rail is arranged in the base, and the third guide rail is positioned above the base; the third sliding block is arranged on the third guide rail; the fixed block five is arranged on the sliding block three; the upper end of the connecting shaft II penetrates through the elongated channel and the through hole in the fixing block I to be installed on the fixing block II; and the electric cylinder is arranged on the fifth fixing block and connected with the lower end of the second connecting shaft and is used for driving the second connecting shaft to move up and down. When the electric cylinder is adjusted, the second connecting shaft moves up and down, and the second connecting shaft drives the second fixing seat to move up and down, so that the up-and-down position is adjusted; meanwhile, under the action of the front and rear position adjusting piece, the electric cylinder can move back and forth on the guide rail III along with the fixed block V and the slide block III.
The spraying module comprises a liquid storage tank, a first gear, a third connecting shaft, a second gear, a water inlet and a spray head; the liquid storage tank is of a door-shaped structure with a right opening; the first gear is arranged in the liquid storage tank through a first connecting shaft; the connecting shaft III is arranged in the liquid storage box and is positioned behind the connecting shaft I; the gear II is arranged in the liquid storage tank through a connecting shaft III, the gear III is meshed with the gear I, and the meshing of the gear III and the gear I forms a gear pump, so that cooling liquid in the liquid storage tank is conveyed to the upper part of the liquid storage tank, extra power is avoided, and the structure of equipment is simplified; the water inlet is positioned at the lower left of the liquid storage tank and used for introducing cooling liquid into the liquid storage tank; the spray head is arranged at the upper right part of the liquid storage tank and is used for spraying the cooling liquid. During operation, pour into the coolant liquid into in the liquid reserve tank, gear one rotates under the effect of motor one, and gear two rotates along with gear one, and gear one forms a gear pump with the top of liquid reserve tank below with gear two, and the coolant liquid sprays to the optical glass in the processing via the shower nozzle on, cools off optical glass, washs the glass piece on the optical glass simultaneously to the performance of the optical glass after polishing has been improved.
A motor IV, a gear III, a gear IV, a helical gear I, a connecting shaft IV, a helical gear II, a screw III and a clamping jaw are also arranged in the fixed seat; the motor IV is arranged in the fixed seat; the third gear is arranged on the fourth output shaft of the motor; the number of the gears is three, the gears are distributed at 120 degrees, the gears are fixed in the fixed seat in a mode of winding the gears at four times around the three circumferential directions of the gears, and the gears at four times are meshed with the gears at three phases; the first helical gear is coaxially arranged with the fourth helical gear; a bearing is also arranged in the fixed seat; the number and distribution of the connecting shafts are the same as those of the bevel gears I, the connecting shafts IV are rotatably installed in the fixed seat through bearings, and threaded holes III are formed in the connecting shafts IV; the number of the second bevel gears is three, the second bevel gears are arranged on the fourth connecting shaft, and the second bevel gears are meshed with the first bevel gears; round holes are also formed in the fixed seat, and the number and distribution of the round holes are the same as those of the connecting shafts; the number of the third screw rods is the same as that of the fourth screw rods which are distributed on the same connecting shaft, and one ends of the third screw rods, close to the axes, penetrate through the third threaded holes and are arranged in the circular holes; rectangular grooves are formed in the fixed seat, and the distribution and the number of the rectangular grooves are the same as those of the third screw; the clamping jaw is L-shaped, one end of the clamping jaw is located outside the fixing seat, the other end of the clamping jaw is located in the rectangular groove, the clamping jaw is connected with the third screw rod, and the clamping jaw is used for fixing the optical glass. When the optical glass clamping device works, the motor four drives the gear three to rotate, the gear three drives the gear four to rotate with the bevel gear one, the bevel gear two and the connecting shaft four rotate under the action of the bevel gear one, and the rotation of the connecting shaft four enables the screw to move in the three-direction axis direction, so that the clamping jaw clamps the optical glass under the action of the screw three.
T-shaped slideways are arranged in the fixed seat, and the quantity and the distribution of the T-shaped slideways are the same as those of the rectangular grooves; the clamping jaw bottom be equipped with the rectangle square, the rectangle square is installed in T font slide. When the clamping jaw locking device works, the clamping jaw slides in the T-shaped slide way, and the T-shaped slide way firmly locks the clamping jaw in the fixing seat.
An annular cavity and a rubber block are arranged inside the second helical gear; the rubber block is annular, the rubber block is arranged on the fourth connecting shaft, and the rubber block is connected with the inner wall of the annular cavity through a spring. The during operation, rubber block extrusion connecting axle four for connecting axle four rotates with helical gear two together, and when the clamping jaw pressed from both sides tight optical glass, the rubber block was not enough to drive connecting axle four and continues to rotate, and rubber block two slides on connecting axle four, and when the clamping jaw appeared becoming flexible, the rubber block began again to drive connecting axle four movements, made three drive clamping jaws of screw rod press from both sides tight optical glass, and the existence of rubber block makes optical glass receive a invariable power all the time, has ensured that optical glass is pressed from both sides tightly.
The invention has the following beneficial effects:
1. according to the rough grinding process of the optical lens, the grinding head in the optical glass mirror surface grinding equipment adopted by the process can present a plane shape and a ball shape, and the two shapes are switched with each other, so that the grinding efficiency of the optical lens is effectively improved, and the production rhythm is accelerated.
2. According to the rough grinding process of the optical lens, the rolling grinding head is arranged on the grinding head in the optical glass mirror surface grinding equipment, and the elastic connecting rod and the spherical grinding head on the rolling grinding head can effectively avoid the situation that the optical glass is excessively ground due to misoperation in the optical glass grinding process, so that the rejection rate in the grinding process is reduced, and the cost is saved.
3. According to the coarse grinding process of the optical lens, the fixing seat in the optical glass mirror surface polishing equipment is used for clamping the lens to be polished through the three clamping jaws, so that the uniform stress is ensured when the optical lens is fixed, meanwhile, the clamping force of the clamping jaws is always unchanged due to the rubber ring arranged on the bevel gear II in the fixing seat, the damage to the optical lens is avoided, and the yield of a finished product is improved.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
FIG. 5 is an enlarged view of a portion of FIG. 2 at D;
FIG. 6 is a schematic structural view of the sanding head of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at C;
FIG. 8 is a cross-sectional view E-E of FIG. 5;
fig. 9 is a schematic diagram of the mechanism of the rolling grinding head of the present invention;
FIG. 10 is an enlarged fragmentary view at F of FIG. 5 of the present invention;
in the figure: the device comprises a machine base 1, a first motor 2, a spraying module 3, a first connecting shaft 4, a fixed seat 5, a position adjusting module 6, a second motor 7, a connecting seat 8, a polishing head 9, a liquid storage tank 31, a first gear 32, a third connecting shaft 33, a second gear 34, a water inlet 35, a spray head 36, a fourth motor 51, a third gear 52, a fourth gear 53, a first bevel gear 54, a fourth connecting shaft 55, a second bevel gear 56, a third screw 57, a clamping jaw 58, a rubber block 59, a front and rear position adjusting part 61, a left and right position adjusting part 62, a vertical position adjusting part 63, a first guide rail 611, a first slider 612, a first fixed block 613, a first screw 614, a third motor 615, a second fixed block 621, a second guide rail 622, a second slider 623, a third fixed block 624, a fourth fixed block 625, a second screw 626, an adjusting wheel 627, a third guide rail 631, a third slider 632, a fifth fixed block 633, connecting shaft five 94 and rolling grinding head 95.
Detailed Description
The rough grinding process of the optical lens according to an embodiment of the present invention will be described below with reference to fig. 1 to 10.
As shown in fig. 1, fig. 2, fig. 5 and fig. 6, the rough grinding process for an optical lens according to the present invention includes the following steps:
the method comprises the following steps: sawing and cutting an optical glass blank according to the size of the blank;
step two: after the glass blank is obtained in the first step, grinding out uneven traces left in sawing;
step three: after the grinding in the second step, slicing and cutting are carried out according to the size of the plane blank of the part;
step four: after slicing and squaring in the third step, gluing the slices into long strips according to the thickness direction of the part;
step five: after the adhesive tape is finished in the fourth step, grinding the outer circle according to the size requirement;
step six: grinding the outer circle in the step five, and then cleaning and degumming to obtain a single round glass sheet;
step seven: after the round glass sheet is obtained in the sixth step, the flat surface of the round sheet is ground into a spherical surface according to the requirements of a drawing through optical glass mirror surface polishing equipment;
step eight: grinding the spherical surface in the seventh step, grinding the sharp edge of the optical glass and cleaning;
the polishing equipment for the optical glass mirror surface in the seventh step comprises a machine base 1, a motor I2, a spraying module 3, a connecting shaft I4, a fixed seat 5, a position adjusting module 6, a motor II 7, a connecting seat 8 and a polishing head 9; the motor I2 is fixed on the base 1, and the motor I2 is positioned at the right end of the base 1; the spraying module 3 is fixed on the base 1, the spraying module 3 is positioned on the right side of the base 1, the spraying module 3 is used for cooling the optical glass in the processing process, and meanwhile, the spraying module 3 can also remove scraps on the optical glass, so that the influence of the glass scraps is eliminated; the left end of the connecting shaft I4 penetrates through the spraying module 3 and is fixed on an output shaft of the motor I2; the fixed seat 5 is fixed at the right end of the first connecting shaft 4, and the fixed seat 5 is used for fixing the optical glass; the position adjusting module 6 is positioned on the right side of the fixed seat 5, the position adjusting module 6 is fixed on the base 1, and the position adjusting module 6 is used for adjusting the position of the polishing head 9, so that the polishing head 9 can polish the optical glass at multiple angles, and the polishing precision is improved; the second motor 7 is fixed at the top of the position adjusting module 6; the connecting seat 8 is fixed on the left side of the second motor 7 through an output shaft of the second motor 7; the polishing head 9 is arranged at the left end of the connecting seat 8, and the polishing head 9 is used for polishing the optical glass; the grinding head 9 comprises an adjustable grinding head 91, a connecting block 92, an electromagnet 93 and a connecting shaft five 94; the adjustable grinding head 91 consists of a disc grinding head and a plurality of annular ring grinding heads, a plurality of chutes are circumferentially arranged on the inner walls of the disc grinding head and the annular ring grinding heads, a plurality of rectangular bumps are circumferentially arranged at the right ends of the disc grinding head and the annular ring grinding head, the disc grinding head and the annular ring grinding head are connected through the bumps, the annular ring grinding heads are connected through the bumps, the right sides of the disc grinding head and the annular ring grinding head are provided with magnetism and have the same polarity, the disc grinding head can be retracted into the first annular ring grinding head on the right side of the disc grinding head, and the annular ring grinding heads can be sequentially retracted into the next annular ring grinding head from left; the connecting block 92 is positioned on the right side of the adjustable grinding head 91, the connecting block 92 is disc-shaped, and the diameter of the connecting block 92 is the same as that of the rightmost circular grinding head; the electromagnet 93 is arranged in the connecting block 92, the electromagnet 93 is used for adjusting the shape of the polishing head 9, and the change of the shape of the polishing head 9 enables the polishing head 9 to polish the spherical surface and the plane of the optical glass, so that the polishing head 9 is prevented from being replaced for many times, and the working efficiency is improved; the left end of the connecting shaft five 94 is connected with the connecting block 92, and the right end of the connecting shaft five 94 is connected with the connecting seat 8. When the polishing head 9 is required to be spherical during working, the electromagnet 93 is electrified, so that the polarity of the left end of the electromagnet 93 is the same as the polarity of the right ends of the disc polishing head and the circular polishing head, and the polishing head 9 is in a spherical shape under the action of repulsion force; when the polishing head 9 is required to be in a planar form, the direction of current flowing in the electromagnet 93 is changed, the polarity of the left end of the electromagnet 93 is different from the polarity of the right ends of the disc polishing head and the annular polishing head, the polishing head 9 is in a planar state under the action of attraction force, the polishing head 9 can be polished aiming at the spherical surface and the planar surface of optical glass due to the change of the form of the polishing head 9, the frequent replacement of the polishing head 9 is avoided, and the working efficiency is further improved.
As shown in fig. 6 and 9, the adjustable grinding head 91 is further provided with a rolling grinding head 95; the rolling grinding head 95 comprises a connecting rod and a spherical grinding head, the connecting rod is made of elastic materials, the connecting rod is connected to the left ends of the disc grinding head and the annular grinding head, the left end of the connecting rod is connected with a spherical block, a spherical cavity is arranged in the spherical grinding head, and the spherical grinding head is installed on the connecting rod through the spherical block. When the optical glass polishing device works, the rolling grinding head 95 is in contact with the optical glass, when the contact force between the rolling grinding head 95 and the optical glass is large, the connecting rod bends, the spherical grinding head rotates on the connecting rod, the contact force between the optical glass and the rolling grinding head 95 is reduced, and the optical glass cannot be scrapped due to errors in the machining process.
As shown in fig. 2 and 4, the position adjusting module 6 includes a front-rear position adjusting member 61, a vertical position adjusting member 63, and a left-right position adjusting member 62; the front-back position adjusting part 61 comprises a first guide rail 611, a first slide block 612, a first fixed block 613, a first screw 614 and a third motor 615; the first guide rail 611 is arranged at the top of the machine base 1; the first sliding block 612 is installed on the first guide rail 611; the first fixing block 613 is mounted on the sliding block, a through hole is formed in the first fixing block 613 in the vertical direction, and a first threaded hole is formed in the front-rear direction of the fixing block; the first screw 614 is arranged on the first fixing block 613 through the first threaded hole; the third motor 615 is installed at the top of the machine base 1, the third motor 615 is located behind the first fixing block 613, the third motor 615 is connected with the first screw 614, and the third motor 615 is used for driving the first screw 614 to rotate. During operation, the third motor 615 drives the first screw 614 to rotate, and the first screw 614 drives the first fixing block 613 and the first slider 612 to move back and forth on the first guide rail 611, so as to adjust the front and rear positions.
As shown in fig. 2, the left-right position adjusting element 62 includes a second fixed block 621, a second guide rail 622, a second slide block 623, a third fixed block 624, a fourth fixed block 625, a second screw 626 and an adjusting wheel 627; the second fixing block 621 is located above the first fixing block 613; the second guide rail 622 is installed on the second fixed block 621; the second sliding block 623 is mounted on the second guide rail 622; the third fixing block 624 is mounted on the second sliding block 623, and a second threaded hole is formed in the left and right positions of the third fixing block 624; the fixed block IV 625 is fixed at the right end of the fixed block II 621; the second screw 626 passes through the second threaded hole and is rotatably mounted on the fourth fixed block 625; the adjusting wheel 627 is installed on the fixed block IV 625 through the right end of the screw rod II, and the adjusting wheel 627 is used for driving the screw rod II 626 to rotate. During operation, the adjusting wheel 627 rotates to drive the second screw 626 to rotate, and the second screw 626 drives the third fixed block 624 and the second slider 623 to move left and right on the second guide rail 622, so that the left and right positions are adjusted.
As shown in fig. 2 and 4, the vertical position adjusting member 63 includes a guide rail three 631, a slider three 632, a fixing block five 633, a connecting shaft two 634, and an electric cylinder 635; the machine base 1 is also provided with a strip-shaped channel; the guide rail three 631 is arranged in the base 1, and the guide rail three 631 is positioned above the base 1; the third sliding block 632 is arranged on the third guide rail 631; the fixed block five 633 is arranged on the sliding block three 632; the upper end of the second connecting shaft 634 passes through the elongated channel and the through hole on the first fixing block 613 to be mounted on the second fixing block 621; the electric cylinder 635 is installed on the fixed block fifth 633, the electric cylinder 635 is connected with the lower end of the second connecting shaft 634, and the electric cylinder 635 is used for driving the second connecting shaft 634 to move up and down. When the electric cylinder 635 is adjusted, the second connecting shaft 634 moves up and down, and the second connecting shaft 634 drives the second fixing base 5 to move up and down, so that the up-and-down position is adjusted; meanwhile, under the action of the front-rear position adjusting member 61, the electric cylinder 635 can move back and forth on the guide rail three 631 along with the fixed block five 633 and the slide block three 632.
As shown in fig. 2 and 3, the spraying module 3 includes a liquid storage tank 31, a first gear 32, a third connecting shaft 33, a second gear 34, a water inlet 35 and a spray head 36; the liquid storage tank 31 is of a door-shaped structure with a right opening; the first gear 32 is arranged in the liquid storage tank 31 through a first connecting shaft 4; the third connecting shaft 33 is arranged in the liquid storage tank 31, and the third connecting shaft 33 is positioned behind the first connecting shaft 4; the second gear 34 is installed in the liquid storage tank 31 through the third connecting shaft 33, the third gear 52 is meshed with the first gear 32, and the meshing of the third gear 52 and the first gear 32 forms a gear pump, so that the cooling liquid in the liquid storage tank 31 is conveyed to the upper part of the liquid storage tank 31, extra power is avoided, and the structure of the equipment is simplified; the water inlet 35 is positioned at the lower left of the liquid storage tank 31, and the water inlet 35 is used for introducing cooling liquid into the liquid storage tank 31; the spray head 36 is installed at the upper right of the liquid storage tank 31, and the spray head 36 is used for spraying the cooling liquid. When the polishing machine works, cooling liquid is injected into the liquid storage tank 31, the first gear 32 rotates under the action of the first motor 2, the second gear 34 rotates along with the first gear 32, the first gear 32 and the second gear 34 form a gear pump to convey the cooling liquid below the liquid storage tank 31 to the upper portion of the liquid storage tank 31, the cooling liquid is sprayed onto optical glass in processing through the spray head 36 to cool the optical glass, and meanwhile, glass fragments on the optical glass are cleaned, so that the performance of the polished optical glass is improved.
As shown in fig. 2, a motor four 51, a gear three 52, a gear four 53, a bevel gear one 54, a connecting shaft four 55, a bevel gear two 56, a screw rod three 57 and a clamping jaw 58 are further arranged inside the fixed seat 5; the motor IV 51 is arranged in the fixed seat 5; the third gear 52 is arranged on an output shaft of the fourth motor 51; the number of the fourth gear 53 is three, the fourth gear 53 is distributed at 120 degrees, the fourth gear 53 is fixed in the fixed seat 5 around the third gear 52 in the circumferential direction, and the fourth gear 53 is meshed with the third gear 52; the number of the first bevel gears 54 is three, and the first bevel gears 54 and the fourth bevel gears 53 are coaxially arranged; a bearing is also arranged in the fixed seat 5; the number and the distribution of the connecting shaft IV 55 are the same as those of the bevel gears I54, the connecting shaft IV 55 is rotatably arranged in the fixed seat 5 through a bearing, and a threaded hole III is formed in the connecting shaft IV 55; the number of the second bevel gears 56 is three, the second bevel gears 56 are arranged on the connecting shaft four 55, and the second bevel gears 56 are meshed with the first bevel gears 54; round holes are also formed in the fixed seat 5, and the number and distribution of the round holes are the same as those of the four connecting shafts 55; the number of the third screw rods 57 is the same as that of the fourth screw rods 55 distributed on the same connecting shaft, and one end, close to the axis, of each third screw rod 57 penetrates through the third threaded hole to be installed in the circular hole; rectangular grooves are formed in the fixed seat 5, and the distribution and the number of the rectangular grooves are the same as those of the screw rods III; the clamping jaw 58 is L-shaped, one end of the clamping jaw 58 is located outside the fixing seat 5, the other end of the clamping jaw 58 is located in the rectangular groove, the clamping jaw 58 is connected with the third screw rod 57, and the clamping jaw 58 is used for fixing the optical glass. When the optical glass clamping device works, the motor IV 51 drives the gear III 52 to rotate, the gear III 52 drives the gear IV 53 and the bevel gear I54 to rotate, the bevel gear II 56 and the connecting shaft IV 55 rotate under the action of the bevel gear I54, and the rotation of the connecting shaft IV 55 enables the screw III 57 to move towards the axis direction, so that the clamping jaw 58 clamps the optical glass under the action of the screw III 57.
As shown in fig. 2 and 8, T-shaped slideways are arranged in the fixing seat 5, and the number and distribution of the T-shaped slideways are the same as those of the rectangular grooves; the bottom end of the clamping jaw 58 is provided with a rectangular square block, and the rectangular square block is arranged in a T-shaped slideway. When the clamping jaw locking device works, the clamping jaw 58 slides in the T-shaped slide way, and the T-shaped slide way firmly locks the clamping jaw 58 in the fixing seat 5.
As shown in fig. 2, 5 and 10, an annular cavity and a rubber block 59 are arranged inside the second bevel gear 56; the rubber block 59 is annular, the rubber block 59 is arranged on the fourth connecting shaft 55, and the rubber block 59 is connected with the inner wall of the annular cavity through a spring. When the optical glass clamping device works, the rubber block 59 extrudes the connecting shaft four 55, so that the connecting shaft four 55 and the bevel gear two 56 rotate together, when the clamping jaw 58 clamps the optical glass, the rubber block 59 is not enough to drive the connecting shaft four 55 to continue rotating, the rubber block 59 slides on the connecting shaft four 55, when the clamping jaw 58 is loosened, the rubber block 59 starts to drive the connecting shaft four 55 to move again, so that the screw rod three 57 drives the clamping jaw 58 to clamp the optical glass, and due to the existence of the rubber block 59, the optical glass always bears a constant force, and the optical glass is ensured to be clamped.
The specific operation flow is as follows:
when the optical glass clamping device works, the optical glass is arranged on the fixed seat 5, the motor four 51 drives the gear three 52 to rotate, the gear three 52 drives the gear four 53 and the bevel gear one 54 to rotate, the bevel gear two 56 and the connecting shaft four 55 rotate under the action of the bevel gear one 54, the screw rod three 57 moves towards the axis direction due to the rotation of the connecting shaft four 55, and the clamping jaw 58 moves towards the axis in the T-shaped slide way under the action of the screw rod three 57 to clamp the optical glass; in the process, the rubber block 59 extrudes the connecting shaft four 55, so that the connecting shaft four 55 and the bevel gear two 56 rotate together, when the clamping jaw 58 clamps the optical glass, the rubber block 59 is not enough to drive the connecting shaft four 55 to continue rotating, the rubber block 59 slides on the connecting shaft four 55, when the clamping jaw 58 is loosened, the rubber block 59 starts to drive the connecting shaft four 55 to move again, so that the screw rod three 57 drives the clamping jaw 58 to clamp the optical glass, and the rubber block 59 exists, so that the optical glass always bears a constant force, and the optical glass is ensured to be clamped. At the moment, the first motor 2 is started, the first motor 2 drives the fixing seat 5 to rotate, in the rotating process of the first motor 2, the cooling liquid is introduced into the liquid storage tank 31 from the water inlet 35, the first gear 32 drives the second gear 34 to rotate, the cooling liquid is conveyed to the spray head 36 and sprayed out, and the optical glass is cooled. Then, the second motor 7 is started, the second motor 7 drives the polishing head 9 to rotate, the rotation directions of the second motor 7 and the first motor 2 are opposite, and the polishing head 9 polishes the optical glass by controlling the up-down position adjusting piece, the front-back position adjusting piece 61 and the left-right position adjusting piece 62 to adjust; in the process, the shape of the polishing head 9 can be adjusted, when the polishing head 9 is required to be spherical, the electromagnet 93 is electrified, so that the polarity of the left end of the electromagnet 93 is the same as the polarity of the right ends of the disc polishing head and the circular polishing head, and the polishing head 9 is spherical under the action of repulsion force; when the polishing head 9 is required to be in a planar state, the direction of current flowing in the electromagnet 93 is changed, at the moment, the polarity of the left end of the electromagnet 93 is different from the polarities of the right ends of the disc polishing head and the annular polishing head, and the polishing head 9 is in a planar state under the action of attraction force.
While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
In the above embodiment, the adjusting wheel drives the screw to move the slider left and right, but the present invention is not limited thereto, and the motor may also drive the screw to move the slider left and right.
In the above embodiment, the rectangular blocks arranged at the bottom ends of the clamping jaws are matched through the T-shaped slide ways, so that the clamping jaws move along the T-shaped slide ways, but the clamping jaws are not limited to the T-shaped slide ways, and different sliding blocks can be arranged at the bottom ends of the clamping jaws and matched with the sliding blocks arranged at the bottom ends of the clamping jaws, so that the clamping jaws move along the slide ways.
Industrial applicability
According to the invention, the rough grinding process of the optical lens can effectively improve the grinding efficiency of the optical lens, and simultaneously can reduce the rejection rate of rough grinding of the optical lens and save the cost, so that the rough grinding process of the optical lens is useful in the technical field of lens production.
Claims (8)
1. A rough grinding process of an optical lens is characterized in that: the coarse grinding process comprises the following steps:
the method comprises the following steps: sawing and cutting an optical glass blank according to the size of the blank;
step two: after the glass blank is obtained in the first step, grinding out uneven traces left in sawing;
step three: after the grinding in the second step, slicing and cutting are carried out according to the size of the plane blank of the part;
step four: after slicing and squaring in the third step, gluing the slices into long strips according to the thickness direction of the part;
step five: after the adhesive tape is finished in the fourth step, grinding the outer circle according to the size requirement;
step six: grinding the outer circle in the step five, and then cleaning and degumming to obtain a single round glass sheet;
step seven: after the round glass sheet is obtained in the sixth step, the flat surface of the round sheet is ground into a spherical surface according to the requirements of a drawing through optical glass mirror surface polishing equipment;
step eight: grinding the spherical surface in the seventh step, grinding the sharp edge of the optical glass and cleaning;
the polishing equipment for the optical glass mirror surface in the seventh step comprises a base (1), a motor I (2), a spraying module (3), a connecting shaft I (4), a fixed seat (5), a position adjusting module (6), a motor II (7), a connecting seat (8) and a polishing head (9); the motor I (2) is fixed on the base (1), and the motor I (2) is positioned at the right end of the base (1); the spraying module (3) is fixed on the machine base (1), the spraying module (3) is positioned on the right side of the machine base (1), and the spraying module (3) is used for cooling the optical glass in the processing process; the left end of the first connecting shaft (4) penetrates through the spraying module (3) and is fixed on an output shaft of the first motor (2); the fixed seat (5) is fixed at the right end of the connecting shaft I (4), and the fixed seat (5) is used for fixing the optical glass; the position adjusting module (6) is positioned on the right side of the fixed seat (5), and the position adjusting module (6) is fixed on the machine base (1); the second motor (7) is fixed at the top of the position adjusting module (6); the connecting seat (8) is fixed on the left side of the second motor (7) through an output shaft of the second motor (7); the polishing head (9) is arranged at the left end of the connecting seat (8), and the polishing head (9) is used for polishing the optical glass; the polishing head (9) comprises an adjustable polishing head (91), a connecting block (92), an electromagnet (93) and a connecting shaft five (94); the adjustable grinding head (91) consists of a disc grinding head and a plurality of ring grinding heads, a plurality of chutes are circumferentially arranged on the inner walls of the disc grinding head and the ring grinding heads, a plurality of rectangular bumps are circumferentially arranged at the right ends of the disc grinding head and the ring grinding heads, the disc grinding head and the ring grinding head are connected through the bumps, the ring grinding heads are mutually connected through the bumps, the right sides of the disc grinding head and the ring grinding head are provided with magnetism and have the same polarity, the disc grinding head can be retracted into the first ring grinding head on the right side of the disc grinding head, and the ring grinding heads can be sequentially retracted into the next ring grinding head from left to right; the connecting block (92) is positioned on the right side of the adjustable grinding head (91), the connecting block (92) is disc-shaped, and the diameter of the connecting block (92) is the same as that of the rightmost circular grinding head; the electromagnet (93) is arranged in the connecting block (92), and the electromagnet (93) is used for adjusting the shape of the polishing head (9); the left end of the connecting shaft five (94) is connected with the connecting block (92), and the right end of the connecting shaft five (94) is connected with the connecting seat (8);
the adjustable grinding head (91) is also provided with a rolling grinding head (95); the rolling grinding head (95) comprises a connecting rod and a spherical grinding head, the connecting rod is made of elastic materials, the connecting rod is connected to the left ends of the disc grinding head and the circular grinding head, the left end of the connecting rod is connected with a spherical block, a spherical cavity is arranged in the spherical grinding head, and the spherical grinding head is installed on the connecting rod through the spherical block.
2. The rough grinding process for optical lenses according to claim 1, wherein: the position adjusting module (6) comprises a front position adjusting piece, a rear position adjusting piece (61), a left position adjusting piece, a right position adjusting piece (62) and a vertical position adjusting piece (63); the front-back position adjusting piece (61) comprises a first guide rail (611), a first sliding block (612), a first fixed block (613), a first screw rod (614) and a third motor (615); the first guide rail (611) is arranged at the top of the machine base (1); the first sliding block (612) is installed on the first guide rail (611); the first fixing block (613) is mounted on the sliding block, a through hole is formed in the first fixing block (613) in the vertical direction, and a first threaded hole is formed in the front-back direction of the fixing block; the first screw (614) is arranged on the first fixing block (613) through the first threaded hole; the motor III (615) is installed at the top of the machine base (1), the motor III (615) is located behind the fixing block I (613), the motor III (615) is connected with the screw rod I (614), and the motor III (615) is used for driving the screw rod I (614) to rotate.
3. The rough grinding process for optical lenses according to claim 2, wherein: the left and right position adjusting part (62) comprises a second fixed block (621), a second guide rail (622), a second sliding block (623), a third fixed block (624), a fourth fixed block (625), a second screw rod (626) and an adjusting wheel (627); the second fixing block (621) is positioned above the first fixing block (613); the second guide rail (622) is arranged on the second fixed block (621); the second sliding block (623) is installed on the second guide rail (622); the third fixing block (624) is mounted on the second sliding block (623), and threaded holes II are formed in the left and right positions of the third fixing block (624); the fixed block IV (625) is fixed at the right end of the fixed block II (621); the second screw (626) penetrates through the second threaded hole to be rotatably mounted on the fourth fixed block (625); the adjusting wheel (627) is installed on the fixed block IV (625) through the right end of the screw rod II, and the adjusting wheel (627) is used for driving the screw rod II (626) to rotate.
4. The rough grinding process for optical lenses according to claim 2, wherein: the vertical position adjusting part (63) comprises a guide rail III (631), a sliding block III (632), a fixed block V (633), a connecting shaft II (634) and an electric cylinder (635); the machine base (1) is also provided with a strip-shaped channel; the guide rail III (631) is arranged inside the machine base (1), and the guide rail III (631) is positioned above the machine base (1); the third sliding block (632) is arranged on the third guide rail (631); the fixed block five (633) is arranged on the sliding block three (632); the upper end of the second connecting shaft (634) penetrates through the long-strip-shaped channel and a through hole in the first fixing block (613) to be mounted on the second fixing block (621); the electric cylinder (635) is installed on the fixing block fifth (633), the electric cylinder (635) is connected with the lower end of the connecting shaft second (634), and the electric cylinder (635) is used for driving the connecting shaft second (634) to move up and down.
5. The rough grinding process for optical lenses according to claim 1, wherein: the spraying module (3) comprises a liquid storage tank (31), a first gear (32), a third connecting shaft (33), a second gear (34), a water inlet (35) and a spray head (36); the liquid storage tank (31) is of a door-shaped structure with a right opening; the first gear (32) is installed in the liquid storage tank (31) through a first connecting shaft (4); the connecting shaft III (33) is arranged in the liquid storage tank (31), and the connecting shaft III (33) is positioned behind the connecting shaft I (4); the second gear (34) is installed in the liquid storage tank (31) through a third connecting shaft (33), and the third gear (52) is meshed with the first gear (32); the water inlet (35) is positioned at the lower left of the liquid storage tank (31), and the water inlet (35) is used for introducing cooling liquid into the liquid storage tank (31); the spray head (36) is arranged at the upper right part of the liquid storage tank (31), and the spray head (36) is used for spraying the cooling liquid.
6. The rough grinding process for optical lenses according to claim 1, wherein: a motor four (51), a gear three (52), a gear four (53), a bevel gear one (54), a connecting shaft four (55), a bevel gear two (56), a screw rod three (57) and a clamping jaw (58) are further arranged in the fixed seat (5); the motor IV (51) is arranged in the fixed seat (5); the third gear (52) is arranged on an output shaft of the fourth motor (51); the number of the gears four (53) is three, the gears four (53) are distributed at 120 degrees, the gears four (53) are circumferentially fixed in the fixed seat (5) around the gear three (52), and the gears four (53) are meshed with the gear three (52); the number of the first bevel gears (54) is three, and the first bevel gears (54) and the fourth bevel gears (53) are coaxially arranged; a bearing is also arranged in the fixed seat (5); the number and the distribution of the connecting shafts four (55) are the same as those of the bevel gears one (54), the connecting shafts four (55) are rotatably installed in the fixed seat (5) through bearings, and threaded holes three are formed in the connecting shafts four (55); the number of the second bevel gears (56) is three, the second bevel gears (56) are arranged on the connecting shaft four (55), and the second bevel gears (56) are meshed with the first bevel gears (54); round holes are also formed in the fixed seat (5), and the number and the distribution of the round holes are the same as those of the connecting shaft IV (55); the number of the third screw rods (57) is the same as that of the fourth screw rods (55) distributed on the same connecting shaft, and one ends of the third screw rods (57) close to the axle center penetrate through the third threaded holes to be installed in the round holes; rectangular grooves are formed in the fixed seat (5), and the distribution and the number of the rectangular grooves are the same as those of the third screw; the clamping jaw (58) is L-shaped, one end of the clamping jaw (58) is located outside the fixing seat (5), the other end of the clamping jaw (58) is located in the rectangular groove, the clamping jaw (58) is connected with the third screw rod (57), and the clamping jaw (58) is used for fixing the optical glass.
7. The rough grinding process for optical lenses according to claim 6, wherein: t-shaped slideways are arranged in the fixed seat (5), and the quantity and the distribution of the T-shaped slideways are the same as those of the rectangular grooves; the bottom end of the clamping jaw (58) is provided with a rectangular square block, and the rectangular square block is arranged in a T-shaped slideway.
8. The rough grinding process for optical lenses according to claim 6, wherein: an annular cavity and a rubber block (59) are arranged inside the second bevel gear (56); the rubber block (59) is annular, the rubber block (59) is installed on the connecting shaft IV (55), and the rubber block (59) is connected with the inner wall of the annular cavity through a spring.
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| CN201810745652.6A CN108788942B (en) | 2018-07-09 | 2018-07-09 | Coarse grinding process of optical lens |
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| CN101224556A (en) * | 2008-02-04 | 2008-07-23 | 东华大学 | Precise magnetic flowage polishing system for optics parts and method thereof |
| EP2436483A1 (en) * | 2010-10-04 | 2012-04-04 | Schneider GmbH & Co. KG | Method and device for processing an optical lens |
| DE102014015053A1 (en) * | 2014-10-15 | 2016-04-21 | Satisloh Ag | Device for fine machining of optically effective surfaces on in particular spectacle lenses |
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| US2890551A (en) * | 1956-02-20 | 1959-06-16 | American Optical Corp | Apparatus and method of forming ophthalmic lenses |
| GB1208943A (en) * | 1967-04-06 | 1970-10-14 | Textron Inc | Method and apparatus for generating a lens |
| CN100515675C (en) * | 2006-03-23 | 2009-07-22 | 株式会社春近精密 | Grinding processing method for optical spherical lens |
| CN101972996A (en) * | 2010-07-13 | 2011-02-16 | 厦门大学 | Polishing wheel of small grinding head of controllable alternating magnetic field |
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Effective date of registration: 20201119 Address after: Haihong Road, Qidong hi tech Industrial Development Zone, Nantong City, Jiangsu Province Applicant after: Puya new material technology Qidong Co.,Ltd. Address before: 232000 Anhui Province, Huainan city tianjia'an District National Road No. 56 West Wang Village Shungeng group of No. Applicant before: Cheng Chunli |
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Denomination of invention: A rough grinding process of optical lens Effective date of registration: 20220705 Granted publication date: 20201204 Pledgee: Bank of China Limited by Share Ltd. Qidong branch Pledgor: Puya new material technology Qidong Co.,Ltd. Registration number: Y2022320010332 |