CN112658878B - Accurate grinding device of accurate ball core of triaxial - Google Patents
Accurate grinding device of accurate ball core of triaxial Download PDFInfo
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- CN112658878B CN112658878B CN202011505016.XA CN202011505016A CN112658878B CN 112658878 B CN112658878 B CN 112658878B CN 202011505016 A CN202011505016 A CN 202011505016A CN 112658878 B CN112658878 B CN 112658878B
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- 238000005498 polishing Methods 0.000 description 8
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Abstract
A three-axis accurate spherical core fine grinding device comprises a machine body, wherein at least one fine grinding station is arranged on the machine body, the station comprises a fine grinding disc for placing a lens to be finely ground, the fine grinding disc is connected to a swinging mechanism capable of swinging, a fine grinding head is suspended above the fine grinding disc, the fine grinding head is connected to the lower end of a longitudinal adjusting mechanism, and the longitudinal adjusting mechanism is fixed on the machine body; the distance between the fine grinding head and the lens to be finely ground is controlled by the longitudinal adjusting mechanism, and the swing mechanism swings according to a preset swing track curve. According to the fine grinding device, the swinging track of the bearing table is stably and uniquely adjusted and controlled through the connecting rod, the crank and the axial adjusting mechanism of the swinging mechanism, and the fine grinding height can be set under the adjustment of the longitudinal adjusting mechanism, so that the automatic fine grinding operation of the complex curved surface lens is realized, the efficiency is greatly improved, and the yield is also guaranteed.
Description
Technical Field
The invention relates to the field of lens grinding, in particular to a three-axis quasi-spherical core fine grinding device.
Background
At present, with the continuous development of the optical lens industry, the specification requirements for the lens are more and more strict; the finish grinding and polishing of the lens refers to a processing method for obtaining a bright and flat surface by reducing the roughness of the surface of a workpiece under the mechanical action, and the polishing aims at obtaining a smooth surface or lens luster of the workpiece by utilizing a polishing tool or other polishing media to modify the surface of the workpiece.
In the prior art, the lens finishing grinder needs a lot of manual operation components in the processing process of the lens, and the whole processing process has low automation degree and low efficiency; furthermore, the existing fine grinding machine generally cannot grind the lens with the complex curved surface, or the curvature of the lens obtained by fine grinding cannot meet the precision requirement; furthermore, existing refiners lack flexible manufacturing results, and particularly for lenses requiring high precision curvatures, the ability to refine different surfaces of different lenses in one machine to achieve lenses of acceptable curvature requirements is currently not achievable.
Disclosure of Invention
The present invention is made in view of the problems raised by the background art, and the present invention will be further described below.
A three-axis accurate spherical core fine grinding device comprises a machine body, wherein at least one fine grinding station is arranged on the machine body, the station comprises a fine grinding disc for placing a lens to be finely ground, the fine grinding disc is connected to a swinging mechanism capable of swinging, a fine grinding head is suspended above the fine grinding disc, the fine grinding head is connected to the lower end of a longitudinal adjusting mechanism, and the longitudinal adjusting mechanism is fixed on the machine body; the distance between the fine grinding head and the lens to be finely ground is controlled by the longitudinal adjusting mechanism, and the swing mechanism swings according to a preset swing track curve.
Preferably, the swing mechanism comprises a bearing platform, the fine grinding disc is fixed on the bearing platform, lifting lugs are arranged at two ends of the bearing platform, and the lifting lugs are pivoted on the machine body; the bottom of the bearing table is provided with a first belt pulley, the first belt pulley is coaxially connected with the fine grinding disc and synchronously rotates, the first belt pulley is connected with a second belt pulley, the second belt pulley is fixed on an installation plate, the installation plate is fixedly connected to the bottom end of the bearing table, a first motor is fixed on the installation plate, and the output of the first motor is connected with the second belt pulley; the side position pin joint of plummer has the connecting rod, and the connecting rod pin joint has the crank, and the crank is connected at the output of gearbox, and the output of second motor is connected to the input of gearbox.
Preferably, the longitudinal adjusting mechanism comprises a fine grinding head, a sleeve is sleeved outside the fine grinding head, a connecting seat is sleeved outside the sleeve, the connecting seat is fixed on the machine body through a bolt, and the distance between the connecting seat and the machine body is achieved through adjusting the fastened bolt; the top of the sleeve is connected with an installation seat, the installation seat is connected with a buffer block, the buffer block is connected with a spring, two ends of the spring are arranged in the accommodating barrel, a protective cover is arranged outside the spring, and the spring pushes the accommodating barrel against the buffer block and the protective cover; the fine grinding head is connected to the buffer block through the lock rod, and the buffer block is further connected to the output of the air cylinder.
Preferably, the sleeve is carved with the scale, and when the connecting seat is installed, the bolt fasteners pre-tighten the bolt fasteners which are oppositely arranged, then the adjacent bolt fasteners are pre-tightened towards the same direction once, and then all the bolt fasteners are fastened in the same sequence after pre-tightening.
Preferably, the one end of buffer block be connected with buffer cylinder, when the buffer block strikes downwards, in advance with buffer cylinder effect, slowly reset under buffer cylinder's effect, avoid mechanical shock, guaranteed the adjustment accuracy of mounting height. The connecting seat is prevented from deforming under the reset impact of the spring, and the precision of the height adjustment of the longitudinal adjusting mechanism is ensured.
Preferably, one side pin joint of mount pad has the commentaries on classics piece, is equipped with the screens groove on the commentaries on classics piece, when needs stop the finish grinding for a long time, rotates the commentaries on classics piece, places the locking lever in screens groove department.
Preferably, the rotating block is further provided with a holding rod, and the pivoting end of the rotating block and the mounting seat is provided with a limiting block. When the lock rod is placed in the clamping groove, the holding rod is contacted with the limiting block to form a stable stagnation system.
Preferably, the swing mechanism be connected with axial adjustment mechanism, axial adjustment mechanism includes that both ends are fixing screw rod, the guide arm of parallel arrangement on the fuselage, and the one end of screw rod extends to the fuselage outside and is connected with the runner, is provided with the handle on the runner, and the cooperation is provided with the slip table on the screw rod, and the slip table sets up on the guide arm simultaneously, and the gearbox is accepted at the slip table top. When the rotating wheel is rotated, the sliding table is driven by the screw rod to slide on the guide rod, so that the axial line position of the gearbox relative to the guide rod is changed, and the swing track of the bearing table is changed.
Preferably, the crank is provided with a sliding groove, the sliding groove is provided with a sliding block, the sliding block is provided with a pivot extending out of the sliding groove, one end of the connecting rod is pivoted on the pivot, one end of the crank is provided with an adjusting block, and the adjusting block penetrates through the sliding block and is in threaded connection with the sliding block. The position of the sliding block in the sliding groove is changed by rotating the adjusting block, so that the effective turning radius of the crank is changed, and the swing track of the bearing table is changed.
Has the advantages that: compared with the prior art, the finish grinding device provided by the invention has the advantages that the swinging track of the bearing table is stably and uniquely adjusted and controlled through the connecting rod, the crank and the axial adjusting mechanism of the swinging mechanism, and meanwhile, the finish grinding height can be set under the adjustment of the longitudinal adjusting mechanism, so that the automatic finish grinding operation of the lens with the complex curved surface is realized, the efficiency is greatly improved, and the yield is also ensured.
Drawings
FIG. 1: the invention has a structure schematic diagram;
FIG. 2: the enlarged structure at A in FIG. 1 is schematically shown;
FIG. 3: the structural schematic diagram of the longitudinal mediating mechanism;
FIG. 4: the structure at B in FIG. 3 is an enlarged schematic view;
FIG. 5: the connection schematic diagram of the swing mechanism and the axial adjusting mechanism;
FIG. 6: another connection schematic diagram of the swinging mechanism and the axial adjusting mechanism;
FIG. 7: the structure at C in FIG. 6 is enlarged;
in the figure: the device comprises a machine body 10, a swinging mechanism 20, a refining disc 21, a bearing table 22, a lifting lug 221, a first belt pulley 23, a second belt pulley 24, a mounting plate 25, a first motor 26, a connecting rod 27, a crank 28, a sliding chute 281, a sliding block 282, a pivot 283, an adjusting block 284, a gearbox 29, a second motor 210, a longitudinal adjusting mechanism 30, a refining head 31, a sleeve 32, a connecting seat 33, a mounting seat 34, a buffering block 35, a spring 36, an accommodating cylinder 37, a protecting cover 38, a locking rod 39, an air cylinder 310, a buffering air cylinder 311, a rotating block 312, a clamping groove 313, a holding rod 314, a limiting block 315, an axial adjusting mechanism 40, a screw rod 41, a guide rod 42, a rotating wheel 43, a handle 44, a sliding table 45 and a control box 50.
Detailed Description
A specific embodiment of the present invention will be described in detail with reference to fig. 1-7.
A triaxial accurate ball core fine grinding device, refer to the attached figure 1-2, including the fuselage 10, there is at least one fine grinding station on the fuselage 10, to any station among them, including placing the fine grinding disc 21 to wait for the fine grinding lens, the said fine grinding disc 21 connects to swingable swing mechanism 20, the upper portion of the fine grinding disc 21 suspends the fine grinding head 31 in midair, the fine grinding head 31 connects to the lower end of the longitudinal regulating mechanism 30, the longitudinal regulating mechanism 30 is fixed on fuselage 10; the distance between the fine grinding head 31 and the lens to be finely ground is controlled by the longitudinal adjusting mechanism 30, and meanwhile, the swing mechanism 20 swings according to a preset swing track curve, so that the fine grinding head 31 finely grinds the surface of the lens to be finely ground to obtain the lens with the target curvature.
Referring to fig. 5-7, the swing mechanism 20 includes a bearing table 22, the polishing disc 21 is fixed on the bearing table 22, lifting lugs 221 are arranged at two ends of the bearing table 22, the lifting lugs 221 are pivoted on the machine body 10, and the bearing table 22 swings at the pivoted position; the bottom of the bearing table 22 is provided with a first belt pulley 23, the first belt pulley 23 is coaxially connected with the polishing disc 21 and synchronously rotates, the first belt pulley 23 is in belt connection with a second belt pulley 24, the second belt pulley 24 is fixed on an installation plate 25, the installation plate 25 is fixedly connected with the bottom end of the bearing table 22, a first motor 26 is fixed on the installation plate 25, the output of the first motor 26 is connected with the second belt pulley 24, the power of the first motor 26 is transmitted to the polishing disc 21 through the second belt pulley 24 and the first belt pulley 23 in sequence to drive the polishing disc 21 to rotate at a high speed; the connecting rod 27 is pivoted at the side position of the bearing platform 22, the connecting rod 27 is pivoted with the crank 28, the crank 28 is connected with the output end of the gearbox 29, the input of the gearbox 29 is connected with the output end of the second motor 210, the second motor 210 drives the crank 28 to rotate after the speed change adjustment of the gearbox 29, and the crank 28 drives the connecting rod 27 to swing so as to drive the bearing platform 22 to swing at the pivoted position. The lens to be finely ground is placed on the fine grinding disc 21, and when the lens rotates at a high speed along with the fine grinding disc 21, the lens also swings back and forth along with the bearing table 22, and the swinging track of the lens is set according to the curvature characteristics of mirror grinding.
Referring to fig. 3-4, the longitudinal parking mechanism 30 includes a fine grinding head 31, a sleeve 32 is sleeved outside the fine grinding head 31, a connecting seat 33 is sleeved outside the sleeve 32, the connecting seat 33 is fixed on the machine body 10 through a bolt, the fine grinding head 31 and the sleeve 32 are respectively sleeved on the sleeve 32 and the connecting seat 33 through shaft shoulders on the fine grinding head and the sleeve, and the distance between the connecting seat 33 and the machine body 10 is achieved by adjusting the fastened bolt, so as to meet the requirement of changing the setting height of the longitudinal parking mechanism 30; the top of the sleeve 32 is connected with an installation seat 34, the installation seat 34 is connected with a buffer block 35, the buffer block 35 is connected with a spring 36, two ends of the spring 36 are arranged in an accommodating barrel 37, a protective cover 38 is arranged outside the spring 36, and the accommodating barrel 37 is pressed against the buffer block 35 and the protective cover 38 by the spring 36; the fine grinding head 31 is connected to the buffer block 35 through the lock rod 39, and the buffer block 35 is also connected to the output of the cylinder 310. In the fine grinding process, the air cylinder 310 acts at a set moment to lift the buffer block 35, the spring 36 is compressed, the buffer block 35 drives the fine grinding head 31 to act upwards to avoid contact with the lens, after the adjustment of the lens is completed, the air cylinder 310 acts, the spring 36 resets to press the buffer block 35 on the mounting seat 34, and simultaneously, the fine grinding head 31 is pressed, and the fine grinding operation is continued.
The height adjustment of the longitudinal adjustment mechanism 30 is completed by changing the bolt fasteners connected with the connecting seat 33 and the machine body 10, during adjustment, the scale is engraved on the sleeve 32, the setting height of the current connecting seat 33 can be displayed by observing the scale, when the device is installed, in order to ensure the precision of the height of the connecting seat 33, the bolt fasteners pre-tighten the bolt fasteners which are oppositely arranged, then pre-tighten the adjacent bolt fasteners towards the same direction once, and after pre-tightening, all the bolt fasteners are fastened in the same sequence.
It should be noted that the height of the longitudinal intervention and maintenance mechanism 30 of the invention is adjusted by a bolt fastener, and under the reset impact of the spring 36, the connecting seat 33 is easy to deform, so that the adjustment height of the longitudinal intervention and maintenance mechanism 30 cannot be ensured, and in order to avoid the impact caused by frequent spring reset, one end of the buffer block 35 is connected with the buffer cylinder 311, and when the buffer block 35 impacts downwards, the buffer block acts with the buffer cylinder 311 in advance, and slowly resets under the action of the buffer cylinder 311, so that the mechanical impact is avoided, and the adjustment precision of the installation height is ensured.
One side of the mounting seat 34 is pivoted with a rotating block 312, the rotating block 312 is provided with a clamping groove 313, and when the finish grinding needs to be stopped for a long time, the rotating block 312 is rotated to place the lock rod 39 at the clamping groove 313; preferably, the rotating block 312 is further provided with a holding rod 314, and a limit block 315 is disposed at a pivoting end of the rotating block 312 and the mounting base 34, on one hand, the limit block 315 can prevent the rotating block 312 from falling off from the pivoting position, and the holding rod 314 can facilitate an operator to rotate the rotating block 312, on the other hand, when the lock lever 39 is placed at the position of the locking groove 313, the holding rod 314 contacts the limit block 315, the lock lever 39 generates a rotational driving force for the rotating block 312, but the limit block 315 limits the rotation of the holding rod 314, and at this time, a stable stagnation system is formed.
The fine grinding device of the embodiment is suitable for fine grinding of lenses with different curvature characteristics, and can perform uniqueness determination by adjusting the swing track curve of the bearing table 22 provided with the swing mechanism 20 and the setting height of the longitudinal mediating and stopping mechanism 30, so as to perform fine grinding on lenses with different curvature requirements. Specifically, in order to make the swing track curve unique and adjustable, the swing mechanism be connected with axial adjustment mechanism 40, axial adjustment mechanism 40 includes that both ends are fixing screw rod 41, the guide arm 42 of parallel arrangement on fuselage 10, and the one end of screw rod 41 extends to the fuselage 10 outside and is connected with runner 43, is provided with handle 44 on the runner 43, and the cooperation is provided with slip table 45 on screw rod 41, and slip table 45 sets up on guide arm 42 simultaneously, and gearbox 29 is accepted at slip table 45 top. When the rotating wheel 43 is rotated, the sliding table 45 is driven by the screw 41 to slide on the guide rod 42, so that the axial position of the gearbox 29 relative to the guide rod 42 is changed, and the swing track of the bearing table 22 is changed.
Before changing the axial position of the transmission case 29 relative to the guide rod 42, the pivot joints of the connecting rod 27 and the crank 28 may be adjusted and checked in advance according to actual conditions, specifically, a sliding slot 281 is disposed in the crank 28, a sliding block 282 is disposed in the sliding slot 281, a pivot 283 extending out of the sliding slot 281 is disposed on the sliding block 282, one end of the connecting rod 27 is pivoted on the pivot 283, an adjusting block 284 is disposed at one end of the crank 28, the adjusting block 284 penetrates through the sliding block 282 and is in threaded connection with the sliding block 282, the position of the sliding block 282 in the sliding slot 281 is changed by rotating the adjusting block 284, and further, the effective turning radius of the crank 28 is changed, so as to change the swing track of the plummer 22.
It should be noted that in most cases, the connecting structure of the connecting rod 27 and the crank 28 does not need to be adjusted, only the axial adjusting mechanism 40 and the longitudinal stopping mechanism 30 need to be adjusted, and only when the calibration is needed and the lens curvature requirement is changed greatly, and the adjusting range of the axial adjusting mechanism 40 is insufficient, the connecting structure of the connecting rod 27 and the crank 28 only needs to be adjusted.
The invention is also provided with a control box 50 on the machine body, which controls various electric control devices of the device, such as the air cylinder 311, the first motor 26 and the second motor 210.
According to the finish grinding device, the connecting rod 27, the crank 28 and the axial adjusting mechanism 40 of the swinging mechanism 20 are used for stably and uniquely adjusting and controlling the swinging track of the bearing table 22, and meanwhile, the finish grinding height can be set under the adjustment of the longitudinal adjusting mechanism 30, so that the automatic finish grinding operation of the complex curved surface lens is realized, the efficiency is greatly improved, and meanwhile, the yield is also guaranteed. ,
the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A triaxial quasi-spherical core fine grinding device comprises a machine body (10), and is characterized in that: at least one fine grinding station is arranged on the machine body (10), the station comprises a fine grinding disc (21) for placing a lens to be finely ground, the fine grinding disc (21) is connected to the swinging mechanism (20) capable of swinging, a fine grinding head (31) is suspended above the fine grinding disc (21), the fine grinding head (31) is connected to the lower end of a longitudinal adjusting mechanism (30), and the longitudinal adjusting mechanism (30) is fixed on the machine body (10); the distance between the fine grinding head (31) and the lens to be finely ground is controlled by the longitudinal adjusting mechanism (30), and the swinging mechanism (20) swings according to a preset swinging track curve;
the longitudinal adjusting mechanism (30) comprises a fine grinding head (31), a sleeve (32) is sleeved outside the fine grinding head (31), a connecting seat (33) is sleeved outside the sleeve (32), the connecting seat (33) is fixed on the machine body (10) through a bolt, and the distance between the connecting seat (33) and the machine body (10) is achieved through adjusting the fastened bolt; the top of the sleeve (32) is connected with an installation seat (34), the installation seat (34) is connected with a buffer block (35), the buffer block (35) is connected with a spring (36), two ends of the spring (36) are arranged in an accommodating cylinder (37), a protective cover (38) is arranged outside the spring (36), and the accommodating cylinder (37) is pressed against the buffer block (35) and the protective cover (38) by the spring (36); the fine grinding head (31) is connected to the buffer block (35) through a lock rod (39), and the buffer block (35) is also connected to the output of the air cylinder (310);
one side of the mounting seat (34) is pivoted with a rotating block (312), and a clamping groove (313) is formed in the rotating block (312); the rotating block (312) is also provided with a holding rod (314), the pivoting end of the rotating block (312) and the mounting seat (34) is provided with a limiting block (315), and when the locking rod (39) is placed at the clamping groove (313), the holding rod (314) is contacted with the limiting block (315) to form a stable stagnation system.
2. The three-axis quasi-spherical core fine grinding apparatus according to claim 1, wherein: the swing mechanism (20) comprises a bearing platform (22), the fine grinding disc (21) is fixed on the bearing platform (22), lifting lugs (221) are arranged at two ends of the bearing platform (22), and the lifting lugs (221) are pivoted on the machine body (10); a first belt pulley (23) is arranged at the bottom of the bearing table (22), the first belt pulley (23) is coaxially connected with the refining disc (21) and synchronously rotates, the first belt pulley (23) is connected with a second belt pulley (24), the second belt pulley (24) is fixed on a mounting plate (25), the mounting plate (25) is fixedly connected to the bottom end of the bearing table (22), a first motor (26) is fixed on the mounting plate (25), and the output of the first motor (26) is connected with the second belt pulley (24); a connecting rod (27) is pivoted at the side position of the bearing table (22), a crank (28) is pivoted on the connecting rod (27), the crank (28) is connected to the output end of the gearbox (29), and the input of the gearbox (29) is connected with the output end of the second motor (210).
3. The three-axis quasi-spherical core fine grinding apparatus according to claim 2, wherein: the scale is carved on the sleeve (32), when the connecting seat (33) is installed, the bolt fasteners pre-tighten the bolt fasteners which are oppositely arranged, then the adjacent bolt fasteners are pre-tightened towards the same direction once, and all the bolt fasteners are fastened in the same sequence after pre-tightening.
4. A three-axis quasi-spherical core fine grinding apparatus according to claim 3, wherein: one end of the buffer block (35) is connected with a buffer cylinder (311), and when the buffer block (35) impacts downwards, the buffer block and the buffer cylinder (311) are acted in advance, and the buffer block is slowly reset under the action of the buffer cylinder (311).
5. A three-axis quasi-spherical-core fine grinding apparatus according to any one of claims 2 to 4, wherein: the swing mechanism (20) is connected with an axial adjusting mechanism (40),
the axial adjusting mechanism (40) comprises a screw rod (41) and a guide rod (42), wherein two ends of the screw rod (41) are fixed on the machine body (10) and are arranged in parallel, one end of the screw rod (41) extends out of the machine body (10) and is connected with a rotating wheel (43), a handle (44) is arranged on the rotating wheel (43), a sliding table (45) is arranged on the screw rod (41) in a matched mode, the sliding table (45) is arranged on the guide rod (42) simultaneously, and the top of the sliding table (45) is used for bearing the gearbox (29).
6. The three-axis quasi-spherical core fine grinding apparatus according to claim 5, wherein: a sliding groove (281) is arranged in the crank (28), a sliding block (282) is arranged in the sliding groove (281), a pivot (283) extending out of the sliding groove (281) is arranged on the sliding block (282), one end of the connecting rod (27) is pivoted on the pivot (283), one end of the crank (28) is provided with an adjusting block (284), and the adjusting block (284) penetrates through the sliding block (282) and is in threaded connection with the sliding block (282).
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| CN202011505016.XA CN112658878B (en) | 2020-12-18 | 2020-12-18 | Accurate grinding device of accurate ball core of triaxial |
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| CN202011505016.XA CN112658878B (en) | 2020-12-18 | 2020-12-18 | Accurate grinding device of accurate ball core of triaxial |
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| CN112658878B true CN112658878B (en) | 2022-08-26 |
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| CN115446692B (en) * | 2022-08-24 | 2023-12-19 | 周立坤 | Lower pendulum machine |
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| CN109834545A (en) * | 2019-03-15 | 2019-06-04 | 中山市旌旭光学有限公司 | The automatic processing integrated machine of optical mirror slip |
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| JPH05212658A (en) * | 1992-01-31 | 1993-08-24 | Maruei Kikai Seisakusho:Kk | Work grinding device by three-dimensional grinding machine with vertical computer numerical control device |
| JP3819141B2 (en) * | 1998-03-03 | 2006-09-06 | オリンパス株式会社 | Polishing equipment |
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| JP4662018B2 (en) * | 2004-06-07 | 2011-03-30 | 株式会社リコー | Curved surface processing apparatus and parallel link mechanism calibration method |
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Denomination of invention: A three-axis quasi spherical core precision grinding device Granted publication date: 20220826 Pledgee: Shangrao Bank Co.,Ltd. Development Zone Branch Pledgor: SHANGRAO HENGTAI OPTICAL EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: Y2024980036802 |
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