CN117359435B - Numerical control plane precision milling and grinding machine for optical lens processing - Google Patents
Numerical control plane precision milling and grinding machine for optical lens processing Download PDFInfo
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- CN117359435B CN117359435B CN202311653746.8A CN202311653746A CN117359435B CN 117359435 B CN117359435 B CN 117359435B CN 202311653746 A CN202311653746 A CN 202311653746A CN 117359435 B CN117359435 B CN 117359435B
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- 238000000227 grinding Methods 0.000 title claims abstract description 112
- 238000003801 milling Methods 0.000 title claims abstract description 80
- 230000003287 optical effect Effects 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 55
- 238000007789 sealing Methods 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 description 13
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000003028 elevating effect Effects 0.000 description 6
- 238000005498 polishing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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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
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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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/08—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for double side lapping
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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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
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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
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention relates to the technical field of optical lens processing, in particular to a numerical control plane precise milling and grinding machine for optical lens processing, which structurally comprises the following components: the milling device comprises a support frame fixed on the base, a lower milling mechanism arranged at the top of the base and an upper milling mechanism fixed on the support frame through a hydraulic cylinder and correspondingly arranged above the lower milling mechanism, wherein the lower milling mechanism comprises a lower milling seat fixed at the top of the base, a lower grinding disc is arranged at the top of the lower milling seat, and a rotatable annular gear is arranged at the inner side of the lower grinding disc.
Description
Technical Field
The invention relates to the technical field of optical lens processing, in particular to a numerical control plane precise milling and grinding machine for optical lens processing.
Background
The optical lens is a precise optical element, is widely applied to optical instruments such as telescopes, microscopes and cameras, and is required to be precisely ground and polished in order to ensure high precision and high quality, and the traditional optical lens processing method is mainly based on manual operation, so that the efficiency is low, the precision is difficult to ensure, and an optical lens fine grinding machine is developed in order to improve the production efficiency and the product quality; the optical lens fine grinding mill is a machine device specially used for processing an optical lens, adopts an advanced automation technology and a precise control system, can realize high-speed, efficient and high-precision grinding and polishing processing, greatly improves the processing quality and the production efficiency of the optical lens, and is widely applied to the fields of military, aviation, aerospace, electronics, semiconductors and the like.
The patent number is: the patent document of CN207255953U discloses a grinding and polishing machine, which comprises a circular ring-shaped lower die, an upper die matched with the lower die, an adjusting device connected with the lower die and used for adjusting the state of raw materials on the lower die, and a control device used for controlling the operation of the grinding and polishing machine, wherein the adjusting device comprises a first gear component arranged on one side of an inner ring of the lower die and a second gear component arranged on one side of an outer ring of the lower die, and the first gear component and the second gear component are coaxially arranged and can respectively adjust the rotation speed;
the following disadvantages still exist in the practical application process: in the use process of the conventional milling machine, the free star wheel is directly placed on the lower grinding disc, the bottom surface of the free star wheel is directly contacted with the upper surface of the lower grinding disc in the milling process, the processed lens is fixed in a grinding groove of the free star wheel, and scraps generated by milling the lens are easily accumulated between the bottom of the grinding groove and the lens, so that the processing efficiency of the lens is improved; meanwhile, most of the abrasive can only be smeared on the top of the star wheel and the lens, so that the abrasive on the upper grinding disc and the lower grinding disc is unevenly distributed, and finally the quality of the lens is reduced.
The numerical control plane precise milling machine for processing the optical lens is convenient for improving the uniformity of milling and grinding the lens and smoothly discharging the scraps.
Disclosure of Invention
The invention provides a numerical control plane precise milling and grinding machine for processing an optical lens, which can effectively solve the problems.
The invention is realized in the following way:
a numerical control plane precision milling and grinding machine for processing an optical lens comprises the following structure: the milling device comprises a support frame fixed on the machine base, a lower milling mechanism arranged at the top of the machine base and an upper milling mechanism fixed on the support frame through a hydraulic cylinder and correspondingly arranged above the lower milling mechanism, wherein the lower milling mechanism comprises a lower milling seat fixed at the top of the machine base, the top of the lower milling seat is provided with a lower milling disc, the inner side of the lower milling disc is provided with a rotatable annular gear, the bottom of the annular gear is provided with a driving shaft penetrating through the lower milling seat and driving the lower milling seat to rotate, the outer side of the lower milling seat is provided with an outer gear, a plurality of planetary gears are arranged between the annular gear and the outer gear at intervals, and each planetary gear is provided with a plurality of milling grooves; also comprises a supporting device which is arranged between the lower grinding disc and the upper grinding mechanism and is used for supporting the planetary wheel, the supporting device comprises a bearing component which is positioned above the lower millstone and connected with the bottom of the planetary wheel, and a driving mechanism which drives the bearing component to synchronously descend according to milling thickness.
As a further improvement, the outer sides of the planetary gears are respectively meshed with the inner gear ring and the outer gear ring; the bearing assembly is of a flaky annular structure, an opening for the driving shaft to penetrate is formed in the middle of the bearing assembly, a plurality of first connecting holes which are matched with the annular gear and slide up and down along the inner teeth of the annular gear are formed in the inner side edge of the bearing assembly, a plurality of rotating grooves which penetrate up and down and are arranged corresponding to the star wheels are formed in the bearing assembly, and the diameter of each rotating groove is smaller than the diameter of the star wheel and the star wheel is rotationally connected above the corresponding rotating groove.
As a further improvement, the star wheel is coaxially arranged with the rotary groove, the bottom of the star wheel is connected with the top of the supporting component, the bottom of the star wheel is provided with a convex ring which extends downwards and is rotationally matched with the rotary groove, the bottom of the convex ring protrudes out of the bottom of the supporting component and is provided with a limiting groove which is concave inwards, the bottom of the rotary groove is provided with a clamping block matched with the limiting groove, and the clamping block is connected with the bottom of the supporting component through a bolt.
As a further improvement, a sealing strip is arranged between the bottom surface of the star wheel and the top of the supporting component, the sealing strip is coaxially arranged with the star wheel and the rotating groove, and the bottom surface of the star wheel and the upper surface of the supporting component are respectively provided with a mounting groove for fixing the sealing strip.
As a further improvement, the driving mechanism comprises a lifting table arranged on the outer side of the lower grinding seat, a driving ring which surrounds the outer side of the lower grinding disc and is matched with the outer gear ring is arranged on the top of the lifting table, the top of the driving ring is closely close to the bottom of the bearing assembly, the driving ring is provided with a plurality of second connecting holes which slide up and down along the outer teeth of the outer gear ring, and the driving mechanism further comprises a lifting device for driving the lifting table to synchronously descend along with the thickness of the milling.
As a further improvement, a water diversion channel is formed between the middle opening of the bearing component and the first connecting hole, a plurality of water inlets are uniformly distributed in the circumferential direction of one end of the water diversion channel, which faces the first connecting hole, a plurality of water outlets are formed at the bottom of the bearing component, and the water inlets are communicated with the water outlets; the grinding machine is characterized in that an abrasive nozzle is fixed on the support frame, a water diversion pipe arranged towards the water diversion groove is arranged in the middle of the upper grinding mechanism, and after the abrasive nozzle discharges the abrasive to enter the upper grinding mechanism, the abrasive nozzle flows into the water diversion groove through the water diversion pipe.
As a further improvement, the lifting device comprises a connecting frame fixed in the machine base, rack lifting mechanisms are arranged at four corners of the top of the connecting frame, the top ends of the rack lifting mechanisms are connected with the bottom of the lifting table, the four rack lifting mechanisms are connected in series through transmission rods, and a motor for driving one transmission rod to rotate is arranged on the connecting frame.
As a further improvement, an annular baffle is arranged at one end of the water diversion channel close to the first connecting hole.
As a further improvement, the inner wall of one side of the water diversion groove close to the driving shaft is gradually inclined towards the annular baffle plate from top to bottom.
The beneficial effects of the invention are as follows:
according to the invention, the supporting device is arranged, and the star wheel is positioned at the half thickness position of the lens in the grinding process, so that a larger space exists between the bottom of the lens and the lower grinding disc, and scraps can be rapidly discharged outwards along with the centrifugal force of milling and grinding, so that the scraps are prevented from accumulating at the bottom of the grinding groove, and the quality and efficiency of lens processing are improved;
according to the invention, the water diversion pipe is combined with the water diversion groove, the water diversion pipe injects the milling agent into the water diversion groove in the grinding process, the milling agent flows towards the water inlet under the centrifugal action and is discharged to the lower grinding disc through the water outlet, so that the grinding agents of the upper grinding disc and the lower grinding disc are uniformly distributed, and the quality of lens grinding is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a numerical control plane precision milling machine for processing an optical lens;
FIG. 2 is a schematic diagram of the structure of the lower grinding mechanism and the supporting device provided by the invention;
FIG. 3 is a schematic view of a top view of a vertical assembly structure of a lower grinding mechanism and a supporting device provided by the invention;
FIG. 4 is a schematic view of a bottom perspective assembly of the lower grind mechanism and support assembly of the present invention;
FIG. 5 is a schematic view of a lower grinding mechanism and a supporting device according to the present invention;
FIG. 6 is a schematic view of a perspective assembly of a star wheel and support assembly according to the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6A provided by the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 6B provided by the present invention;
FIG. 9 is a schematic bottom view of the driving mechanism according to the present invention;
fig. 10 is an enlarged schematic view of the water diversion pipe provided by the invention.
In the figure: the milling machine comprises a machine base-1, a milling device-2, a supporting frame-21, a lower grinding mechanism-22, an upper grinding mechanism-23, a lower grinding seat-221, a lower grinding disc-222, an inner gear ring-223, a driving shaft-224, an outer gear ring-225, a free star-226, a grinding groove-227, a supporting device-3, a bearing assembly-31, a driving mechanism-32, a first connecting hole-311, a rotating groove-312, a convex ring-228, a clamping block-33, a sealing strip-34, a lifting table-321, a driving ring-322, a second connecting hole-323, a water diversion groove-313, a water inlet-314, a water outlet-315, an abrasive nozzle-211, a water diversion pipe-212, a connecting frame-324, a rack lifting mechanism-325, a motor-326 and an annular baffle-316.
Detailed Description
For the purpose of making embodiments of the present invention fall within the scope of the present invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as referring to purposes, technical solutions and advantages of the present invention in any way. All other implementations, which can be derived by a person skilled in the art without making any inventive effort, show or imply relative importance or implicitly indicate the number of technical features indicated on the basis of the implementations in the invention. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the use process of the conventional milling machine, the free star wheel is directly placed on the lower grinding disc, the bottom surface of the free star wheel is directly contacted with the upper surface of the lower grinding disc in the milling process, the processed lens is fixed in a grinding groove of the free star wheel, and scraps generated by milling the lens are easily accumulated between the bottom of the grinding groove and the lens, so that the processing efficiency of the lens is improved; meanwhile, most of the grinding agent can only be smeared on the top of the star wheel and the lens, so that uneven distribution of the grinding agent on the upper grinding disc and the lower grinding disc is caused, and finally, the quality of the lens is reduced.
Referring to fig. 1 to 10, a numerical control plane precision milling machine for processing an optical lens includes: the milling device comprises a machine base 1, a milling device 2 arranged above the machine base 1, wherein the milling device 2 comprises a support frame 21 fixed on the machine base 1, a lower grinding mechanism 22 arranged at the top of the machine base 1, and an upper grinding mechanism 23 fixed on the support frame 21 through a hydraulic cylinder and correspondingly arranged above the lower grinding mechanism 22, the lower grinding mechanism 22 comprises a lower grinding seat 221 fixed at the top of the machine base 1, a lower grinding disc 222 is arranged at the top of the lower grinding seat 221, a rotatable annular gear 223 is arranged at the inner side of the lower grinding disc 222, a driving shaft 224 penetrating through the lower grinding seat 221 and driving the lower grinding seat to rotate is arranged at the bottom of the annular gear 223, an outer gear ring 225 is arranged at the outer side of the lower grinding seat 221, a plurality of free star wheels 226 are arranged between the annular gear 223 and the outer gear ring 225 at intervals, and a plurality of grinding grooves 227 are formed in each free star wheel 226; the device further comprises a supporting device 3 arranged between the lower millstone 222 and the upper milling mechanism 23 and used for supporting the free wheel 226, wherein the supporting device 3 comprises a bearing component 31 which is positioned above the lower millstone 222 and connected with the bottom of the free wheel 226, and a driving mechanism 32 which drives the bearing component 31 to synchronously descend according to the milling thickness;
when in use, the driving mechanism 32 is utilized to push the supporting component 31 to lift, so that the supporting component 31 is separated from the lower millstone 222, then the free star wheel 226 is respectively placed on the supporting component 31, the free star wheel 226 is respectively meshed with the inner gear ring 223 and the outer gear ring 225, then the optical lens to be processed is placed in the corresponding grinding groove 227, the position of the supporting component 31 is adjusted through the driving mechanism 32, the supporting component 31 and the free star wheel 226 are respectively positioned at the half thickness position of the optical lens to be processed, the milling processing is started, the inner gear ring 223 is driven to rotate through the driving shaft 224, and the free star wheel 226 synchronously rotates, so that the upper milling mechanism 23 and the lower millstone 222 simultaneously mill the upper surface and the lower surface of the lens; along with the increase of the milling thickness of the lens, the driving mechanism 32 drives the bearing assembly 31 to synchronously descend by half of the milling thickness, so that the bearing assembly 31 and the free star wheel 226 are ensured to be positioned at the position of half of the thickness of the lens, and therefore, a large space exists between the bottom of the lens and the lower grinding disc, and scraps can be rapidly discharged outwards along with the centrifugal force of milling, so that the scraps are prevented from accumulating at the bottom of the grinding groove, and the quality and efficiency of lens processing are improved;
in addition, in the machining process, the upper surface and the lower surface of the free wheel 226 cannot contact with the upper grinding disc and the lower grinding disc, so that abrasion of the free wheel 226 in the milling process is effectively reduced.
Wherein, the outer sides of the planetary gears 226 are respectively meshed with the inner gear ring 223 and the outer gear ring 225; the supporting component 31 is of a sheet annular structure, and an opening for the driving shaft 224 to pass through is arranged in the middle of the supporting component 31, so that the normal work of the driving shaft 224 is not affected in the lifting process of the supporting component 31;
the inner edge is provided with a plurality of first connecting holes 311 which are matched with the annular gear 223 and slide up and down along the inner teeth of the annular gear 223, the bearing assembly 31 is provided with a plurality of rotating grooves 312 which penetrate up and down and are arranged corresponding to the star wheels 226, the diameter of the rotating grooves 312 is smaller than that of the star wheels 226, and the star wheels 226 are rotationally connected above the rotating grooves 312;
therefore, in use, the first connecting hole 311 of the bearing assembly 31 is inserted into the inner teeth of the inner gear ring 223, the free star 226 is aligned with the rotary groove 312, and during milling, the free star 226 revolves around the driving shaft 224 and rotates simultaneously, and when the driving shaft 224 rotates, the driving shaft 224 drives the inner gear ring 223 to rotate, the bearing assembly 31 rotates synchronously, so that the bearing assembly 31 is driven to revolve synchronously along with the free star 226, and the free star 226 rotates in the rotary groove 312, so that the upper end and the lower end of the lens in the grinding groove 227 are respectively contacted with the upper grinding disk and the lower grinding disk and are processed, and simultaneously, the bearing assembly 31 moves downwards along the vertical direction of the inner teeth of the inner gear ring 223 along with the increase of milling thickness; therefore, during milling, the planetary wheel 226 and the bearing assembly 31 are not contacted with the upper grinding disc and the lower grinding disc, so that rapid discharge of grinding dust is facilitated.
Simultaneously, the bearing assembly 31 slides along the annular gear 223, so that the bearing assembly 31 can be effectively ensured to be always parallel to the upper millstone and the lower millstone during operation, uneven grinding or deflection is avoided, and the consistency of the flatness of the end face of the processed lens is ensured, thereby improving the processing precision and quality.
It should be noted that the star wheel 226 is coaxially disposed with the rotating groove 312, and the bottom surface of the star wheel 226 is connected with the top of the supporting component 31, the bottom of the star wheel 226 is provided with a convex ring 228 extending downward and rotationally engaged with the rotating groove 312, the bottom of the convex ring 228 protrudes out of the bottom surface of the supporting component 31 and has an inward concave limit groove, the bottom of the rotating groove 312 is provided with a locking block 33 engaged with the limit groove, and the locking block 33 is connected with the bottom of the supporting component 31 by a bolt;
therefore, during installation, the convex ring 228 of the star wheel 226 is aligned with the rotary groove 312, and the locking block 33 is matched with the limit groove of the convex ring 228, so that the star wheel 226 and the rotary groove 312 are kept in a coaxial state, and the lens is prevented from colliding with the inner wall of the rotary groove 312 due to the deviation of the star wheel 226 during autorotation in the rotary groove 312; meanwhile, the clamping block 33 is matched and connected with the limiting groove, so that the problem that the lens is deflected due to the fact that the star wheel 226 jumps up and down in the grinding process can be avoided, the consistency of the flatness of the end face of the processed lens is further ensured, and the processing precision and quality are improved.
Further, a sealing strip 34 is arranged between the bottom surface of the star wheel 226 and the top of the supporting component 31, the sealing strip 34 is coaxially arranged with the star wheel 226 and the rotating groove 312, and the bottom surface of the star wheel 226 and the upper surface of the supporting component 31 are respectively provided with a mounting groove for fixing the sealing strip 34, so that scraps or milling agents generated by milling can be effectively prevented from entering a gap between the star wheel 226 and the rotating groove 312 by arranging the sealing strip 34, and the star wheel 226 can be ensured to work normally in the rotating groove 312.
Specifically, the driving mechanism 32 includes a lifting table 321 mounted on the outer side of the lower grinding seat 221, the top of the lifting table 321 has a driving ring 322 surrounding the outer side of the lower grinding disc 222 and matched with the outer gear ring 225, the top of the driving ring 322 is close to the bottom of the supporting component 31, and the driving ring 322 has a plurality of second connecting holes 323 sliding up and down along the outer teeth of the outer gear ring 225, and further includes a lifting device for driving the lifting table 321 to synchronously descend along with the thickness of the grinding;
in use, the support assembly 31 is placed over the drive ring 322, the lift table 321 is driven by the lift device to move up and down, causing the second connecting holes 323 of the drive ring 322 to move up and down along the outer teeth of the outer teeth ring 225, and the top of the drive ring 322 is closely adjacent to the bottom of the support assembly 31, thereby achieving the purpose of adjusting the height of the support assembly 31.
In addition, a water diversion channel 313 is formed between the middle opening of the bearing assembly 31 and the first connecting hole 311, a plurality of water inlets 314 are uniformly distributed along the circumferential direction of one end of the water diversion channel 313 facing the first connecting hole 311, a plurality of water outlets 315 are formed at the bottom of the bearing assembly 31, and the water inlets 314 are communicated with the water outlets 315; an abrasive nozzle 211 is fixed on the support frame 21, a water diversion pipe 212 arranged towards the water diversion groove 313 is arranged in the middle of the upper grinding mechanism 23, and the abrasive nozzle 211 discharges the abrasive into the upper grinding mechanism 23 and flows into the water diversion groove 313 through the water diversion pipe 212;
therefore, during the milling process, as the milling agent is discharged from the milling agent nozzle 211 and smeared on the upper grinding disc and the upper surface of the lens through the upper grinding mechanism 23, the water diversion pipe 212 simultaneously injects the milling agent into the water diversion channel 313, and the bearing assembly 31 rotates synchronously along with the rotation of the driving shaft 224, so that the milling agent in the water diversion channel 313 flows towards the water inlet 314 under the centrifugal action and is discharged to the lower grinding disc 222 through the water outlet 315, the grinding agents of the upper grinding disc and the lower grinding disc are uniformly distributed, and the quality of lens grinding is improved.
Specifically, the lifting device comprises a connecting frame 324 fixed in the machine base 1, rack lifting mechanisms 325 are installed at four corners at the top of the connecting frame 324, the top ends of the rack lifting mechanisms 325 are connected with the bottom of the lifting table 321, the four rack lifting mechanisms 325 are connected in series through transmission rods, and a motor 326 for driving one transmission rod to rotate is arranged on the connecting frame 324; wherein, link 324 is positive direction structure, and center pin and elevating platform 321 coaxial setting, when using, drives one of them transfer line through motor 326 and rotates to impel four rack elevating system 325 synchronous drive elevating platform 321, through four rack elevating system 325 synchronous lift, make elevating platform 321 lift process more stable, avoid elevating platform 321 slope to lead to the problem of lens processingquality decline.
Further, an annular baffle 316 is disposed at one end of the water diversion trench 313 near the first connecting hole 311, so as to effectively prevent the grinding waste liquid or waste scraps of the upper grinding disc from entering the water diversion trench 313; and also increases the strength and stability of the structure and prevents the cutwater 313 from being deformed or damaged during use.
The inner wall of the water diversion channel 313 near one side of the driving shaft 224 is gradually inclined towards the annular baffle 316 from top to bottom, so as to guide the milling agent injected into the water diversion pipe 212 to flow towards one side of the water inlet 314, and promote the milling agent to be smoother and more uniform.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A numerical control plane precision milling and grinding machine for processing an optical lens comprises the following structure: the milling device comprises a machine base (1), a milling device (2) arranged above the machine base (1), wherein the milling device (2) comprises a support frame (21) fixed on the machine base (1), a lower milling mechanism (22) arranged at the top of the machine base (1), and an upper milling mechanism (23) fixed on the support frame (21) through a hydraulic cylinder and correspondingly arranged above the lower milling mechanism (22), and is characterized in that: the lower grinding mechanism (22) comprises a lower grinding seat (221) fixed at the top of the machine base (1), a lower grinding disc (222) is arranged at the top of the lower grinding seat (221), a rotatable annular gear (223) is arranged at the inner side of the lower grinding disc (222), a driving shaft (224) penetrating through the lower grinding seat (221) and driving the lower grinding seat to rotate is arranged at the bottom of the annular gear (223), an outer gear ring (225) is arranged at the outer side of the lower grinding seat (221), a plurality of planetary gears (226) are arranged between the annular gear (223) and the outer gear ring (225) at intervals, and a plurality of grinding grooves (227) are formed in each planetary gear (226); the grinding machine further comprises a supporting device (3) which is arranged between the lower grinding disc (222) and the upper grinding mechanism (23) and used for supporting the planetary wheel (226), wherein the supporting device (3) comprises a bearing component (31) which is arranged above the lower grinding disc (222) and connected with the bottom of the planetary wheel (226), and a driving mechanism (32) which drives the bearing component (31) to synchronously descend according to the thickness of the grinding;
the outer sides of the planetary wheels (226) are respectively meshed with the inner gear ring (223) and the outer gear ring (225); the bearing assembly (31) is of a sheet-shaped annular structure, an opening through which a driving shaft (224) penetrates is formed in the middle of the bearing assembly, a plurality of first connecting holes (311) which are matched with the annular gear (223) and slide up and down along the inner teeth of the annular gear (223) are formed in the inner side edge of the bearing assembly, a plurality of rotating grooves (312) which penetrate up and down and are arranged corresponding to the star wheels (226) are formed in the bearing assembly (31), and the diameter of each rotating groove (312) is smaller than that of the star wheel (226) and the star wheels (226) are rotationally connected above the corresponding rotating grooves (312).
2. A numerically controlled planar precision milling machine for optical lens machining as claimed in claim 1, wherein: the utility model discloses a support subassembly, including support subassembly (31) and support subassembly, including star wheel (226) and rotary groove (312), star wheel (226) and rotary groove (312) coaxial setting, and star wheel (226) bottom and support subassembly (31) top are connected, star wheel (226) bottom is equipped with downwardly extending and with rotary groove (312) swivelling fit's bulge loop (228), bulge loop (228) bottom protrusion in support subassembly (31) bottom, and have inwards sunken spacing groove, rotary groove (312) bottom be equipped with spacing groove complex clamping piece (33), clamping piece (33) are connected with support subassembly (31) bottom through the bolt.
3. A numerically controlled planar precision milling machine for optical lens machining as claimed in claim 2, wherein: sealing strips (34) are arranged between the bottom surface of the planet wheel (226) and the top of the bearing assembly (31), the sealing strips (34) are coaxially arranged with the planet wheel (226) and the rotating groove (312), and the mounting grooves for fixing the sealing strips (34) are respectively formed in the bottom surface of the planet wheel (226) and the upper surface of the bearing assembly (31).
4. A numerically controlled planar precision milling machine for optical lens machining according to any one of claims 1 to 3, wherein: the driving mechanism (32) comprises a lifting table (321) arranged on the outer side of the lower grinding seat (221), a driving ring (322) which surrounds the outer side of the lower grinding disc (222) and is matched with the outer gear ring (225) is arranged at the top of the lifting table (321), the top of the driving ring (322) is tightly close to the bottom of the supporting component (31), the driving ring (322) is provided with a plurality of second connecting holes (323) which slide up and down along the outer teeth of the outer gear ring (225), and the lifting mechanism further comprises a lifting device for driving the lifting table (321) to synchronously descend along with the thickness of the milled grinding disc.
5. A numerically controlled planar precision milling machine for optical lens machining as claimed in claim 2, wherein: a water diversion groove (313) is formed between the middle opening of the bearing component (31) and the first connecting hole (311), a plurality of water inlets (314) are uniformly distributed on the circumference of one end of the water diversion groove (313) facing the first connecting hole (311), a plurality of water outlets (315) are formed at the bottom of the bearing component (31), and the water inlets (314) are communicated with the water outlets (315); an abrasive nozzle (211) is fixed on the support frame (21), a water diversion pipe (212) arranged towards the water diversion groove (313) is arranged in the middle of the upper grinding mechanism (23), and after the abrasive nozzle (211) discharges the abrasive into the upper grinding mechanism (23), the abrasive flows into the water diversion groove (313) through the water diversion pipe (212).
6. The numerically controlled planar precision milling machine for optical lens machining of claim 4, wherein: the lifting device comprises a connecting frame (324) fixed in the machine base (1), rack lifting mechanisms (325) are respectively arranged at four corners of the top of the connecting frame (324), the top ends of the rack lifting mechanisms (325) are connected with the bottom of the lifting table (321), the four rack lifting mechanisms (325) are connected in series through transmission rods, and a motor (326) for driving one transmission rod to rotate is arranged on the connecting frame (324).
7. The numerically controlled planar precision milling machine for optical lens machining of claim 5, wherein: an annular baffle (316) is arranged at one end of the water diversion groove (313) close to the first connecting hole (311).
8. The numerically controlled planar precision milling machine for optical lens machining of claim 7, wherein: the inner wall of the water diversion groove (313) close to one side of the driving shaft (224) is gradually inclined from top to bottom to the annular baffle (316).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311653746.8A CN117359435B (en) | 2023-12-05 | 2023-12-05 | Numerical control plane precision milling and grinding machine for optical lens processing |
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| CN202311653746.8A CN117359435B (en) | 2023-12-05 | 2023-12-05 | Numerical control plane precision milling and grinding machine for optical lens processing |
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| CN117359435B true CN117359435B (en) | 2024-03-05 |
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| CN104044087A (en) * | 2014-06-18 | 2014-09-17 | 蓝思科技股份有限公司 | Copper disc for sapphire polishing and disc repair method thereof |
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| Publication number | Publication date |
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| CN117359435A (en) | 2024-01-09 |
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