CN110026899B - Planetary polishing device - Google Patents
Planetary polishing device Download PDFInfo
- Publication number
- CN110026899B CN110026899B CN201910266143.XA CN201910266143A CN110026899B CN 110026899 B CN110026899 B CN 110026899B CN 201910266143 A CN201910266143 A CN 201910266143A CN 110026899 B CN110026899 B CN 110026899B
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- sun gear
- gear sleeve
- transmission mechanism
- driven shaft
- shaft
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- 238000005498 polishing Methods 0.000 title claims abstract description 100
- 230000005540 biological transmission Effects 0.000 claims abstract description 86
- 230000007704 transition Effects 0.000 claims abstract description 49
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 12
- 230000007547 defect Effects 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 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
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention relates to a tail end device for polishing, and provides a planetary polishing device aiming at the defects of unstable transmission, complex structure, large motion inertia and the like of the conventional planetary polishing device. The device comprises a mounting seat, a driving motor, a driving shaft, a driven shaft and a sun gear assembly; the solar wheel assembly comprises a solar wheel sleeve, a rotary disc, a hollow sliding block, a transition connecting piece and a polishing disc; the sun gear sleeve is a convex connecting sleeve with openings at the upper and lower parts, the small end of the sun gear sleeve is rotatably arranged at the lower part of the mounting seat, and the large end of the sun gear sleeve is positioned at the outer part of the mounting seat; the driving shaft is connected with the driven shaft through a first transmission mechanism; the driving shaft is connected with the sun gear sleeve through a second transmission mechanism; the axle center of the turntable is provided with a through hole, and the lower part of the turntable is provided with a T-shaped groove; the upper end of the hollow sliding block is provided with a clamping groove; the driven shaft is arranged on the sun gear sleeve in a penetrating way, and one end of the driven shaft is connected with the turntable; the sun gear is fixedly arranged at the large end of the sun gear sleeve; the upper part of the transition connecting piece is rotatably arranged in the hollow sliding block; planetary gears are sleeved on the outer circumference of the lower part of the transition connecting piece.
Description
Technical Field
The invention relates to an end device for polishing, in particular to a planetary polishing device.
Background
Due to the excellent performance of the aspherical optical element, the aspherical optical element has been widely used in a new generation optical system in recent years. However, due to the non-uniform curvature of the aspheric optical element, the required ultra-precise machining technology is still limited to further development and application of the aspheric surface, and how to greatly improve the convergence rate of the surface shape error of the optical aspheric surface is a key problem to be solved.
At present, a computer-controlled optical surface forming technology is widely applied to the field of aspheric surface processing, and the technology utilizes quantitative surface shape error data obtained through detection, combines a removal function and a preset processing path, and obtains residence time according to a certain algorithm, so that the surface shape error gradually converges, and finally, the processing requirement is met.
Planetary polishing technology is one of the polishing techniques commonly used in the art of computer-controlled optical surface shaping. However, the existing planetary polishing device has the problems of large rotational inertia, complex polishing head structure, unstable power transmission and the like.
For example, china patent (application number: CN 200810051132.1) discloses a planetary active polishing device and method for optical elements, wherein the device adopts a parallel four-bar mechanism to realize flat rotation, and a planetary motor drives a polishing die to rotate through a flexible shaft. However, due to the inherent property of flexible shaft transmission, the power transmission is not stable; and the rigidity of the parallel four-bar linkage is weaker.
For another example, chinese patent (application number: CN 201410554563.5) discloses a planetary polishing device for a large-caliber aspheric robot, where rotation and revolution of the device are driven by two servo motors respectively, and a revolution transmission mechanism realizes flat rotation of planetary motion, and the rotation transmission mechanism adopts two-stage belt transmission to fix the rotation motor. But the two-stage belt transmission makes the structure complicated, and the swing of swing arm makes moment of inertia great.
Disclosure of Invention
The invention aims to overcome the defects of unstable transmission, complex structure, large motion inertia and the like of the conventional planetary polishing device, and provides the planetary polishing device. The polishing device can realize the polishing of the optical element with high efficiency and high precision by combining with a computer control technology, and is suitable for the precise polishing of the large-caliber aspheric element.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the planetary polishing device is characterized in that: the device comprises a mounting seat, a driving motor, a driving shaft, a driven shaft and a sun gear assembly, wherein the driving motor, the driving shaft, the driven shaft and the sun gear assembly are arranged on the mounting seat; the solar wheel assembly comprises a solar wheel sleeve, a rotary disc, a hollow sliding block, a transition connecting piece and a polishing disc; the sun gear sleeve is a convex connecting sleeve with openings at the upper and lower parts, the small end of the sun gear sleeve is rotatably arranged at the lower part of the mounting seat, and the large end of the sun gear sleeve is positioned outside the mounting seat; an output shaft of the driving motor is connected with the driving shaft; the driving shaft is connected with the driven shaft through a first transmission mechanism; the driving shaft is connected with the sun gear sleeve through a second transmission mechanism; the axle center of the turntable is provided with a through hole, and the lower part of the turntable is provided with a T-shaped groove which transversely penetrates through the turntable; the upper end of the hollow sliding block is provided with a clamping groove matched with the T-shaped groove, and the upper end of the hollow sliding block is clamped into the T-shaped groove and can move along the T-shaped groove; the driven shaft is arranged on the sun gear sleeve in a penetrating way, one end of the driven shaft extends into the large end through the small end of the sun gear sleeve and is connected with the rotary table arranged in the large end of the sun gear sleeve through the through hole to drive the rotary table to rotate; the inner wall of the end head of the large end of the sun gear sleeve is fixedly provided with a sun gear with inner teeth; the upper part of the transition connecting piece is rotatably arranged in the hollow sliding block, and the polishing disk is connected with the transition connecting piece; the lower part of the transition connecting piece extends out of the hollow sliding block, and the outer circumference of the transition connecting piece is fixedly sleeved with a planet wheel meshed with the sun wheel.
Further, the cross section of the through hole is polygonal, and can be rectangular, square or regular hexagon; the shape of one end of the driven shaft connected with the turntable is matched with the shape of the through hole; a turntable bearing is arranged on the inner wall of the large end of the sun gear sleeve, and the inner ring of the turntable bearing is sleeved on the outer surface of the turntable; and a pressing ring used for pressing the turntable bearing is further arranged between the turntable bearing and the sun gear, and the outer wall of the pressing ring is tightly attached to the inner wall of the large end of the sun gear sleeve. Through setting up the carousel bearing, further reduce the rotatory rocking of carousel, make its operation more steady.
Further, the transition piece is hinged with the polishing disk. The polishing disc can be pressed on the mirror surface by the spherical hinge, so that the stability of the polishing removal amount of the workpiece to be processed is ensured.
Further, the driven shaft is a hollow stepped shaft, and a rotary joint is arranged at the upper end of the driven shaft; the transition connecting piece is an air cylinder, the air inlet at the upper end of the air cylinder is provided with a lower rotary joint, and the lower rotary joint is communicated with the lower end of the hollow driven shaft through a pipeline.
Further, a circle of flanges for axially positioning the turntable are arranged at the upper end of the outer circumference of the turntable.
Further, the first transmission mechanism is a gear transmission mechanism or a belt transmission mechanism or a chain transmission mechanism; the second transmission mechanism is a gear transmission mechanism or a belt transmission mechanism or a chain transmission mechanism.
Further, the first transmission mechanism comprises a driving small belt wheel arranged on the driving shaft, a driven large belt wheel arranged on the driven shaft and a first toothed belt connected with the driving small belt wheel and the driven large belt wheel. The toothed belt transmission has the advantages of shock absorption and buffering, stable transmission, accurate transmission and capability of transmitting power at a large inter-axle distance.
Further, the second transmission mechanism comprises a driving large belt wheel arranged on the driving shaft, a belt wheel seat sleeved on the driven shaft and fixedly connected with the sun wheel sleeve, a driven small belt wheel arranged on the belt wheel seat, and a second toothed belt connected with the driving large belt wheel and the driven small belt wheel. The second transmission mechanism enables the sun wheel to rotate, and the revolution speed ratio of the polishing disc can be adjusted through the planet wheel meshed with the sun wheel.
Further, the driving shaft and the driven shaft are parallel to each other and are arranged at intervals; the mounting seat comprises a base and a supporting shell fixedly arranged on the upper surface of the base, a first mounting hole for mounting the driving shaft and a second mounting hole for mounting the sun gear sleeve are formed in the base, and a third mounting hole for mounting the driving motor is formed in the top of the supporting shell. The driving shaft is arranged in the first mounting hole through a bearing, and the small end of the sun gear sleeve is fixedly arranged in the second mounting hole. The supporting shell seals the first transmission mechanism and the second transmission mechanism, and prevents the scraps of the toothed belt from falling to the mirror surface; the structure of the supporting shell is adopted, the disassembly is easy, the transmission belt wheel can be conveniently replaced, and the revolution and rotation speed ratio is adjusted.
Further, the upper part of the transition connecting piece is arranged in the hollow sliding block through a rolling bearing or a sliding bearing; the small end of the sun gear sleeve is arranged in the second mounting hole through a rolling bearing or a sliding bearing.
Compared with the prior art, the invention has the advantages that:
1. the polishing device adopts a planetary gear train structure, and only one motor is used for realizing revolution and rotation of the polishing disc, so that the polishing device has a simple structure, light weight and small moment of inertia.
2. The polishing disc is provided with the first transmission mechanism, the second transmission mechanism and the sun gear assembly, and the eccentricity and the revolution and rotation speed ratio of the polishing disc can be conveniently adjusted by replacing gears or belt wheels.
3. According to the invention, compressed gas is supplied to the cylinder through the upper rotary joint, the central hole of the driven shaft and the lower rotary joint, so that the polishing pressure of the polishing disk is controlled; and then the polishing disc can be pressed on the mirror surface by the spherical hinge, so that the stability of the polishing removal quantity of the processed workpiece is effectively ensured.
4. The polishing device provided by the invention can be used for polishing optical elements with high efficiency and high precision by combining a computer control technology, and is suitable for precisely polishing large-caliber aspheric elements.
Drawings
FIG. 1 is a schematic view of the overall structure of a polishing apparatus of the present invention;
FIG. 2 is an isometric view of a turntable of the polishing apparatus of the present invention;
FIG. 3 is an isometric view of a hollow slider of the polishing device of the present invention;
FIG. 4 is a front cross-sectional view of a first embodiment of the polishing apparatus of the present invention;
FIG. 5 is a front sectional view of a second embodiment of the polishing apparatus of the present invention;
FIG. 6 is a front sectional view of a third embodiment of the polishing apparatus of the present invention;
fig. 7 is a front sectional view of a fourth embodiment of the polishing apparatus of the present invention.
The reference numerals in the drawings are as follows:
1-a mounting seat, 11-a base and 12-a supporting shell;
2-a driving motor;
3-a driving shaft;
4-a first transmission mechanism, 41-a driving small belt pulley, 42-a first toothed belt, 43-a driven large belt pulley;
5-driven shaft, 51-upper rotary joint;
6-a sun gear assembly;
61-sun gear sleeve, 611-turntable bearing, 612-pressing ring, 613-sun gear;
62-a turntable, 621-a through hole and 622-a T-shaped groove;
63-a hollow slider;
64-transition piece, 641-planet wheel, 642-lower rotary joint;
65-polishing disc;
7-second transmission mechanism, 71-driving big belt wheel, 72-second toothed belt, 73-driven small belt wheel, 74-belt wheel seat.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
Example 1
As shown in fig. 1 and 4, the present embodiment provides a planetary polishing apparatus, which includes a mounting base 1, a driving motor 2, a driving shaft 3, a first transmission mechanism 4, a second transmission mechanism 7, a driven shaft 5, and a sun gear assembly 6.
The mounting seat 1 comprises a base 11 and a supporting shell 12 fixedly arranged on the upper surface of the base 11, wherein a first mounting hole and a second mounting hole are formed in the base 11, and a third mounting hole is formed in the top of the supporting shell 12. A third mounting hole of the support shell 12, in which the driving motor 2 is mounted, and the driving shaft 3 is mounted in the first mounting hole through a bearing; the driven shaft 5 is arranged in the mounting seat 1 at intervals parallel to the driving shaft 3.
The sun gear assembly 6 comprises a sun gear sleeve 61, a turntable 62, a hollow slide 63, a transition piece 64 and a polishing disk 65; the sun gear sleeve 61 is a convex connecting sleeve with openings at the upper and lower parts, the small end of the sun gear sleeve is arranged in a second mounting hole of the mounting seat 1 through a rolling bearing, and the large end of the sun gear sleeve is positioned outside the mounting seat 1.
An output shaft of the driving motor 2 is connected with the driving shaft 3 through a coupler; the drive shaft 3 is connected to the driven shaft 5 via a first transmission 4 and to the sun gear housing 61 via a second transmission 7. The first transmission mechanism 4 includes a small driving pulley 41 provided on the driving shaft 3, a large driven pulley 43 provided on the driven shaft 5, and a first toothed belt 42 connecting the small driving pulley 41 and the large driven pulley 43. The second transmission mechanism 7 comprises a driving large belt pulley 71 arranged on the driving shaft 3, a belt pulley seat 74 sleeved on the driven shaft 5 and fixedly connected with the sun gear sleeve 61, a driven small belt pulley 73 arranged on the belt pulley seat, and a second toothed belt 72 connected with the driving large belt pulley 71 and the driven small belt pulley 73.
As shown in fig. 2, the axis of the turntable 62 is provided with a through hole 621, and the lower part is provided with a T-shaped groove 622 which transversely penetrates the turntable 62; the upper end of the hollow slide block 63 is provided with a clamping groove (see fig. 3) which is matched with the T-shaped groove 622, the upper end of the clamping groove is arranged on the T-shaped groove 622 of the turntable 62, the hollow slide block 63 can move along the T-shaped groove 622, and after the eccentricity is adjusted, the clamping groove is fixed by a screw on the hollow slide block 63.
The driven shaft 5 is arranged on the sun gear sleeve 61 in a penetrating way through a bearing, one end of the driven shaft extends into the large end through the small end of the sun gear sleeve 61, and the driven shaft 5 is fixedly connected with the rotary table 62 arranged in the large end of the sun gear sleeve 61 through interference fit or welding with the through hole 621, so that the driven shaft 5 drives the rotary table 62 to rotate.
The inner wall of the end head of the large end of the sun gear sleeve 61 is fixedly provided with a sun gear 613 with inner teeth; the upper part of the transition piece 64 is mounted in the hollow slider 63 by a rolling bearing; the polishing disk 65 is in spherical hinge connection with the transition connecting piece 64; the lower part of the transition piece 64 extends out of the hollow slide 63, and the outer circumference of the transition piece is fixedly sleeved with a planet wheel 641 meshed with a sun gear 613.
The working procedure of this embodiment is:
when polishing operation is performed, the driving motor 2 drives the driving shaft 3 to rotate.
The driving shaft 3 rotates the driven shaft 5 through the first transmission mechanism 4, the driven shaft 5 drives the rotary table 62 to rotate, and the rotary table 62 makes the transition connecting piece 64 revolve around the driven shaft 5 through the hollow sliding block 63; the transition connecting piece 64 drives the polishing disk 65 to revolve around the driven shaft 5 through a planet wheel 641 meshed with a sun wheel 613 in the sun wheel sleeve 61; the polishing disk 65 rotates around its central axis while revolving;
at the same time, the driving shaft 3 drives the sun gear sleeve 61 to rotate through the second transmission mechanism 7, and the sun gear sleeve 61 rotates around the central axis of the sun gear 613 and the planet gears 641 which are meshed with each other; the sun gear case 61 rotates while pushing the planetary gears 641 to rotate.
During polishing, the eccentric distance of the polishing disc can be adjusted by replacing the planetary gears 641 with different teeth numbers and matching with the position of the hollow slide block on the rotary disc 62.
The revolution/rotation speed ratio of the polishing disk 65 can also be adjusted by changing the number of teeth of the pulleys in the first transmission mechanism 4 and the second transmission mechanism 7.
Example two
As shown in fig. 1 and 5, the present embodiment provides a planetary polishing apparatus, which includes a mounting base 1, a driving motor 2, a driving shaft 3, a first transmission mechanism 4, a second transmission mechanism 7, a driven shaft 5, and a sun gear assembly 6. The driven shaft 5 is a hollow stepped shaft, and a rotary joint 51 is mounted on the upper end of the driven shaft.
The mounting seat 1 comprises a base 11 and a supporting shell 12 fixedly arranged on the upper surface of the base 11, wherein a first mounting hole and a second mounting hole are formed in the base 11, and a third mounting hole is formed in the top of the supporting shell 12. A third mounting hole of the support shell 12, in which the driving motor 2 is mounted, and the driving shaft 3 is mounted in the first mounting hole through a bearing; the driven shaft 5 is arranged in the mounting seat 1 at intervals parallel to the driving shaft 3.
The sun gear assembly 6 comprises a sun gear sleeve 61, a turntable 62, a hollow slide 63, a transition piece 64 and a polishing disk 65; the sun gear sleeve 61 is a convex connecting sleeve with openings at the upper and lower parts, the small end of the sun gear sleeve is arranged in a second mounting hole of the mounting seat 1 through a rolling bearing, and the large end of the sun gear sleeve is positioned outside the mounting seat 1. The transition connecting piece 64 is a cylinder, a lower rotary joint 642 is arranged at an air inlet at the upper end of the cylinder, and the lower rotary joint 642 is communicated with the lower end of the hollow driven shaft 5 through a pipeline.
An output shaft of the driving motor 2 is connected with the driving shaft 3 through a coupler; the drive shaft 3 is connected to the driven shaft 5 via a first transmission 4 and to the sun gear housing 61 via a second transmission 7. The first transmission mechanism 4 includes a driving small pulley 41 provided on the driving shaft 3, a driven large pulley 43 provided on the driven shaft 5, and a first toothed belt 42 connecting the driving pulley and the driven pulley. The second transmission mechanism 7 comprises a driving large belt pulley 71 arranged on the driving shaft 3, a belt pulley seat 74 sleeved on the driven shaft 5 and fixedly connected with the sun gear sleeve 61, a driven small belt pulley 73 arranged on the belt pulley seat, and a second toothed belt 72 connected with the driving large belt pulley 71 and the driven small belt pulley 73.
As shown in fig. 2, the axis of the turntable 62 is provided with a through hole 621, and the lower part is provided with a T-shaped groove 622 which transversely penetrates the turntable 62; the upper end of the hollow slide block 63 is provided with a clamping groove (see fig. 3) which is matched with the T-shaped groove 622, the upper end of the clamping groove is arranged on the T-shaped groove 622 of the turntable 62, the hollow slide block 63 can move along the T-shaped groove 622, and after the eccentricity is adjusted, the clamping groove is fixed by a screw on the hollow slide block 63.
The driven shaft 5 is arranged on the sun gear sleeve 61 in a penetrating way through a bearing, one end of the driven shaft extends into the large end through the small end of the sun gear sleeve 61, and the driven shaft 5 is fixedly connected with the rotary table 62 arranged in the large end of the sun gear sleeve 61 through interference fit or welding with the through hole 621, so that the driven shaft 5 drives the rotary table 62 to rotate.
The inner wall of the end head of the large end of the sun gear sleeve 61 is fixedly provided with a sun gear 613 with inner teeth; the upper part of the transition piece 64 is mounted in the hollow slider 63 by a rolling bearing; the polishing disk 65 is in spherical hinge connection with the transition connecting piece 64; the lower part of the transition piece 64 extends out of the hollow slide 63, and the outer circumference of the transition piece is fixedly sleeved with a planet wheel 641 meshed with a sun gear 613.
The working procedure of this embodiment is:
when polishing operation is performed, the driving motor 2 drives the driving shaft 3 to rotate.
The driving shaft 3 rotates the driven shaft 5 through the first transmission mechanism 4, the driven shaft 5 drives the rotary table 62 to rotate, and the rotary table 62 makes the transition connecting piece 64 revolve around the driven shaft 5 through the hollow sliding block 63; the transition connecting piece 64 drives the polishing disk 65 to revolve around the driven shaft 5 through a planet wheel 641 meshed with a sun wheel 613 in the sun wheel sleeve 61; the polishing disk 65 rotates around its central axis while revolving;
at the same time, the driving shaft 3 drives the sun gear sleeve 61 to rotate through the second transmission mechanism 7, and the sun gear sleeve 61 rotates around the central axis of the sun gear 613 and the planet gears 641 which are meshed with each other; the sun gear case 61 rotates while pushing the planetary gears 641 to rotate.
During polishing, the eccentric distance of the polishing disc can be adjusted by replacing the planetary gears 641 with different teeth numbers and matching with the position of the hollow slide block on the rotary disc 62.
The revolution/rotation speed ratio of the polishing disk 65 can also be adjusted by changing the number of teeth of the pulleys in the first transmission mechanism 4 and the second transmission mechanism 7.
The polishing pressure of the polishing disk 65 can also be controlled by supplying compressed air to the cylinder through the upper rotary joint 51, the center hole of the driven shaft 5, and the lower rotary joint 642.
Example III
As shown in fig. 1 and 6, the present embodiment provides a planetary polishing apparatus, which includes a mounting base 1, a driving motor 2, a driving shaft 3, a first transmission mechanism 4, a second transmission mechanism 7, a driven shaft 5, and a sun gear assembly 6.
The mounting seat 1 comprises a base 11 and a supporting shell 12 fixedly arranged on the upper surface of the base 11, wherein a first mounting hole and a second mounting hole are formed in the base 11, and a third mounting hole is formed in the top of the supporting shell 12. A third mounting hole of the support shell 12, in which the driving motor 2 is mounted, and the driving shaft 3 is mounted in the first mounting hole through a bearing; the driven shaft 5 is arranged in the mounting seat 1 at intervals parallel to the driving shaft 3.
The sun gear assembly 6 comprises a sun gear sleeve 61, a turntable 62, a hollow slide 63, a transition piece 64 and a polishing disk 65; the sun gear sleeve 61 is a convex connecting sleeve with openings at the upper and lower parts, the small end of the sun gear sleeve is arranged in a second mounting hole of the mounting seat 1 through a rolling bearing, and the large end of the sun gear sleeve is positioned outside the mounting seat 1.
An output shaft of the driving motor 2 is connected with the driving shaft 3 through a coupler; the drive shaft 3 is connected to the driven shaft 5 via a first transmission 4 and to the sun gear housing 61 via a second transmission 7. The first transmission mechanism 4 includes a driving small pulley 41 provided on the driving shaft 3, a driven large pulley 43 provided on the driven shaft 5, and a first toothed belt 42 connecting the driving pulley and the driven pulley. The second transmission mechanism 7 comprises a driving large belt pulley 71 arranged on the driving shaft 3, a belt pulley seat 74 sleeved on the driven shaft 5 and fixedly connected with the sun gear sleeve 61, a driven small belt pulley 73 arranged on the belt pulley seat, and a second toothed belt 72 connected with the driving large belt pulley 71 and the driven small belt pulley 73.
As shown in fig. 2, the axis of the turntable 62 is provided with a through hole 621 with a square cross section, and the lower part is provided with a T-shaped groove 622 which transversely penetrates the turntable 62; the upper end of the hollow slide block 63 is provided with a clamping groove (see fig. 3) which is matched with the T-shaped groove 622, the upper end of the clamping groove is arranged on the T-shaped groove 622 of the turntable 62, the hollow slide block 63 can move along the T-shaped groove 622, and after the eccentricity is adjusted, the clamping groove is fixed by a screw on the hollow slide block 63.
The driven shaft 5 is arranged on the sun gear sleeve 61 in a penetrating way through a bearing, and the shape of one end connected with the turntable 62 is matched with the shape of the through hole 621; the end part extends into the large end through the small end of the sun gear sleeve 61 and is inserted into the square through hole 621, so that the driven shaft 5 can drive the rotary table 62 arranged in the large end of the sun gear sleeve 61 to rotate; the end of the driven shaft 5 may be fixedly connected to the through hole 621 by interference fit or welding. The plugging is more convenient for the disassembly and replacement of the turntable 62 than the way of the fixed connection.
A turntable bearing 611 is arranged on the inner wall of the large end of the sun gear sleeve 61, and the inner ring of the turntable bearing 611 is sleeved on the outer surface of the turntable 62; the outer circumferential upper end of the turntable 62 is provided with a collar for axial positioning of the turntable 62.
The inner wall of the end head of the large end of the sun gear sleeve 61 is fixedly provided with a sun gear 613 with inner teeth; a pressing ring 612 for pressing the turntable bearing 611 is arranged between the turntable bearing 611 and the sun gear 613, and the outer wall of the pressing ring 612 is tightly attached to the inner wall of the large end of the sun gear sleeve 61. The turntable 62 can be rotated more smoothly by the turntable bearing 611 and the flange.
The upper part of the transition piece 64 is mounted in the hollow slider 63 by a rolling bearing; the polishing disk 65 is in spherical hinge connection with the transition connecting piece 64; the lower part of the transition piece 64 extends out of the hollow slide 63, and the outer circumference of the transition piece is fixedly sleeved with a planet wheel 641 meshed with a sun gear 613.
The working procedure of this embodiment is:
when polishing operation is performed, the driving motor 2 drives the driving shaft 3 to rotate.
The driving shaft 3 rotates the driven shaft 5 through the first transmission mechanism 4, the driven shaft 5 drives the rotary table 62 to rotate, and the rotary table 62 makes the transition connecting piece 64 revolve around the driven shaft 5 through the hollow sliding block 63; the transition connecting piece 64 drives the polishing disk 65 to revolve around the driven shaft 5 through a planet wheel 641 meshed with a sun wheel 613 in the sun wheel sleeve 61; the polishing disk 65 rotates around its central axis while revolving;
at the same time, the driving shaft 3 drives the sun gear sleeve 61 to rotate through the second transmission mechanism 7, and the sun gear sleeve 61 rotates around the central axis of the sun gear 613 and the planet gears 641 which are meshed with each other; the sun gear case 61 rotates while pushing the planetary gears 641 to rotate.
During polishing, the eccentric distance of the polishing disc can be adjusted by replacing the planetary gears 641 with different teeth numbers and matching with the position of the hollow slide block on the rotary disc 62.
The revolution/rotation speed ratio of the polishing disk 65 can also be adjusted by changing the number of teeth of the pulleys in the first transmission mechanism 4 and the second transmission mechanism 7.
Example IV
As shown in fig. 1 and 7, the present embodiment provides a planetary polishing apparatus, which includes a mounting base 1, a driving motor 2, a driving shaft 3, a first transmission mechanism 4, a second transmission mechanism 7, a driven shaft 5, and a sun gear assembly 6. The driven shaft 5 is a hollow stepped shaft, and a rotary joint 51 is mounted on the upper end of the driven shaft.
The mounting seat 1 comprises a base 11 and a supporting shell 12 fixedly arranged on the upper surface of the base 11, wherein a first mounting hole and a second mounting hole are formed in the base 11, and a third mounting hole is formed in the top of the supporting shell 12. A third mounting hole of the support shell 12, in which the driving motor 2 is mounted, and the driving shaft 3 is mounted in the first mounting hole through a bearing; the driven shaft 5 is arranged in the mounting seat 1 at intervals parallel to the driving shaft 3.
The sun gear assembly 6 comprises a sun gear sleeve 61, a turntable 62, a hollow slide 63, a transition piece 64 and a polishing disk 65; the sun gear sleeve 61 is a convex connecting sleeve with openings at the upper and lower parts, the small end of the sun gear sleeve is arranged in a second mounting hole of the mounting seat 1 through a rolling bearing, and the large end of the sun gear sleeve is positioned outside the mounting seat 1. The transition connecting piece 64 is a cylinder, a lower rotary joint 642 is arranged at an air inlet at the upper end of the cylinder, and the lower rotary joint 642 is communicated with the lower end of the hollow driven shaft 5 through a pipeline.
An output shaft of the driving motor 2 is connected with the driving shaft 3 through a coupler; the drive shaft 3 is connected to the driven shaft 5 via a first transmission 4 and to the sun gear housing 61 via a second transmission 7. The first transmission mechanism 4 includes a driving small pulley 41 provided on the driving shaft 3, a driven large pulley 43 provided on the driven shaft 5, and a first toothed belt 42 connecting the driving pulley and the driven pulley. The second transmission mechanism 7 comprises a driving large belt pulley 71 arranged on the driving shaft 3, a belt pulley seat 74 sleeved on the driven shaft 5 and fixedly connected with the sun gear sleeve 61, a driven small belt pulley 73 arranged on the belt pulley seat, and a second toothed belt 72 connected with the driving large belt pulley 71 and the driven small belt pulley 73.
As shown in fig. 2, the axis of the turntable 62 is provided with a through hole 621 with a square cross section, and the lower part is provided with a T-shaped groove 622 which transversely penetrates the turntable 62; the upper end of the hollow slide block 63 is provided with a clamping groove (see fig. 3) which is matched with the T-shaped groove 622, the upper end of the clamping groove is arranged on the T-shaped groove 622 of the turntable 62, the hollow slide block 63 can move along the T-shaped groove 622, and after the eccentricity is adjusted, the clamping groove is fixed by a screw on the hollow slide block 63.
The driven shaft 5 is arranged on the sun gear sleeve 61 in a penetrating way through a bearing, and the shape of one end connected with the turntable 62 is matched with the shape of the through hole 621; the end part extends into the large end through the small end of the sun gear sleeve 61 and is inserted into the square through hole 621, so that the driven shaft 5 can drive the rotary table 62 arranged in the large end of the sun gear sleeve 61 to rotate; the end of the driven shaft 5 may be fixedly connected to the through hole 621 by interference fit or welding. The plugging is more convenient for the disassembly and replacement of the turntable 62 than the way of the fixed connection.
A turntable bearing 611 is arranged on the inner wall of the large end of the sun gear sleeve 61, and the inner ring of the turntable bearing 611 is sleeved on the outer surface of the turntable 62; the outer circumferential upper end of the turntable 62 is provided with a collar for axial positioning of the turntable 62. The turntable 62 can be rotated more smoothly by the turntable bearing 611 and the flange.
The inner wall of the end head of the large end of the sun gear sleeve 61 is fixedly provided with a sun gear 613 with inner teeth; a pressing ring 612 for pressing the turntable bearing 611 is arranged between the turntable bearing 611 and the sun gear 613, and the outer wall of the pressing ring 612 is tightly attached to the inner wall of the large end of the sun gear sleeve 61.
The upper part of the transition piece 64 is mounted in the hollow slider 63 by a rolling bearing; the polishing disk 65 is in spherical hinge connection with the transition connecting piece 64; the lower part of the transition piece 64 extends out of the hollow slide 63, and the outer circumference of the transition piece is fixedly sleeved with a planet wheel 641 meshed with a sun gear 613.
The working procedure of this embodiment is:
when polishing operation is performed, the driving motor 2 drives the driving shaft 3 to rotate.
The driving shaft 3 rotates the driven shaft 5 through the first transmission mechanism 4, the driven shaft 5 drives the rotary table 62 to rotate, and the rotary table 62 makes the transition connecting piece 64 revolve around the driven shaft 5 through the hollow sliding block 63; the transition connecting piece 64 drives the polishing disk 65 to revolve around the driven shaft 5 through a planet wheel 641 meshed with a sun wheel 613 in the sun wheel sleeve 61; the polishing disk 65 rotates around its central axis while revolving;
at the same time, the driving shaft 3 drives the sun gear sleeve 61 to rotate through the second transmission mechanism 7, and the sun gear sleeve 61 rotates around the central axis of the sun gear 613 and the planet gears 641 which are meshed with each other; the sun gear case 61 rotates while pushing the planetary gears 641 to rotate.
During polishing, the eccentric distance of the polishing disc can be adjusted by replacing the planetary gears 641 with different teeth numbers and matching with the position of the hollow slide block on the rotary disc 62.
The revolution/rotation speed ratio of the polishing disk 65 can also be adjusted by changing the number of teeth of the pulleys in the first transmission mechanism 4 and the second transmission mechanism 7.
The polishing pressure of the polishing disk 65 can also be controlled by supplying compressed air to the cylinder through the upper rotary joint 51, the center hole of the driven shaft 5, and the lower rotary joint 642.
The above description is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the technical scope of the present invention, and any known modifications made by those skilled in the art based on the main technical concept of the present invention fall within the technical scope of the present invention.
Claims (10)
1. A planetary polishing device, characterized in that: comprises a mounting seat (1), a driving motor (2), a driving shaft (3), a driven shaft (5) and a sun gear assembly (6) which are arranged on the mounting seat (1);
the sun gear assembly (6) comprises a sun gear sleeve (61), a rotary disc (62), a hollow sliding block (63), a transition connecting piece (64) and a polishing disc (65);
the sun gear sleeve (61) is a convex connecting sleeve with openings at the upper and lower parts, the small end of the sun gear sleeve is rotatably arranged at the lower part of the mounting seat (1), and the large end of the sun gear sleeve is positioned outside the mounting seat (1);
an output shaft of the driving motor (2) is connected with the driving shaft (3); the driving shaft (3) is connected with the driven shaft (5) through a first transmission mechanism (4); the driving shaft (3) is connected with the sun gear sleeve (61) through a second transmission mechanism (7);
the axle center of the turntable (62) is provided with a through hole (621), and the lower part is provided with a T-shaped groove (622) which transversely penetrates through the turntable (62);
the upper end of the hollow sliding block (63) is provided with a clamping groove matched with the T-shaped groove (622), and the upper end of the hollow sliding block is clamped into the T-shaped groove (622) and can move along the T-shaped groove (622);
the driven shaft (5) is arranged on the sun gear sleeve (61) in a penetrating way, one end of the driven shaft extends into the large end of the sun gear sleeve (61) through the small end of the sun gear sleeve, and is connected with the rotary table (62) arranged in the large end of the sun gear sleeve (61) through the through hole (621);
the inner wall of the end head of the large end of the sun gear sleeve (61) is fixedly provided with a sun gear (613) with inner teeth;
the upper part of the transition connecting piece (64) is rotatably arranged in the hollow sliding block (63), and the polishing disk (65) is connected with the transition connecting piece (64); the lower part of the transition connecting piece (64) extends out of the hollow sliding block (63), and the outer circumference of the transition connecting piece is fixedly sleeved with a planet wheel (641) meshed with the sun wheel (613).
2. A planetary polishing apparatus as claimed in claim 1, wherein: the cross section of the through hole (621) is polygonal; the shape of one end of the driven shaft (5) connected with the rotary table (62) is matched with the shape of the through hole (621);
a turntable bearing (611) is arranged on the inner wall of the large end of the sun gear sleeve (61), and the inner ring of the turntable bearing (611) is sleeved on the outer surface of the turntable (62);
a pressing ring (612) for pressing the turntable bearing (611) is further arranged between the turntable bearing (611) and the sun gear (613), and the outer wall of the pressing ring (612) is tightly attached to the inner wall of the large end of the sun gear sleeve (61).
3. A planetary polishing apparatus as claimed in claim 2, wherein: the transition piece is hinged with a polishing disk (65).
4. A planetary polishing apparatus as claimed in claim 1, 2 or 3, wherein: the driven shaft (5) is a hollow stepped shaft, and a rotary joint (51) is arranged at the upper end of the driven shaft;
the transition connecting piece (64) is an air cylinder, a lower rotary joint (642) is arranged at an air inlet at the upper end of the air cylinder, and the lower rotary joint (642) is communicated with the lower end of the hollow driven shaft (5) through a pipeline.
5. The planetary polishing apparatus as claimed in claim 4, wherein: the upper end of the outer circumference of the rotary table (62) is provided with a circle of flange for axially positioning the rotary table (62).
6. The planetary polishing apparatus as claimed in claim 5, wherein:
the first transmission mechanism (4) is a gear transmission mechanism or a belt transmission mechanism or a chain transmission mechanism;
the second transmission mechanism (7) is a gear transmission mechanism or a belt transmission mechanism or a chain transmission mechanism.
7. The planetary polishing apparatus as claimed in claim 6, wherein: the first transmission mechanism (4) comprises a driving small belt wheel (41) arranged on the driving shaft (3), a driven large belt wheel (43) arranged on the driven shaft (5) and a first toothed belt (42) connected with the driving small belt wheel (41) and the driven large belt wheel (43).
8. The planetary polishing apparatus as claimed in claim 7, wherein: the second transmission mechanism (7) comprises a driving large belt wheel (71) arranged on the driving shaft (3), a belt wheel seat (74) sleeved on the driven shaft (5) and fixedly connected with the sun gear sleeve (61), a driven small belt wheel (73) arranged on the belt wheel seat, and a second toothed belt (72) connected with the driving large belt wheel (71) and the driven small belt wheel (73).
9. The planetary polishing apparatus as claimed in claim 8, wherein: the driving shaft (3) and the driven shaft (5) are parallel to each other and are arranged at intervals; the mounting seat (1) comprises a base (11) and a supporting shell (12) fixedly arranged on the upper surface of the base (11), a first mounting hole for mounting the driving shaft (3) and a second mounting hole for mounting the sun gear sleeve (61) are formed in the base (11), and a third mounting hole for mounting the driving motor (2) is formed in the top of the supporting shell (12).
10. A planetary polishing apparatus as claimed in claim 9, wherein: the upper part of the transition connecting piece (64) is arranged in the hollow sliding block (63) through a rolling bearing or a sliding bearing;
the small end of the sun gear sleeve (61) is arranged in the second mounting hole through a rolling bearing or a sliding bearing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910266143.XA CN110026899B (en) | 2019-04-03 | 2019-04-03 | Planetary polishing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266143.XA CN110026899B (en) | 2019-04-03 | 2019-04-03 | Planetary polishing device |
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| CN110026899B true CN110026899B (en) | 2024-04-05 |
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| CN112157526A (en) * | 2020-09-28 | 2021-01-01 | 中国科学院光电技术研究所 | Flat-rotating polishing device |
| CN114193251A (en) * | 2021-12-21 | 2022-03-18 | 蔡芳 | Numerical control automatic guide rail grinding mechanism |
| CN114559357A (en) * | 2022-03-26 | 2022-05-31 | 徐德富 | Single-driven revolution and rotation polishing and shape-modifying device |
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| CN106346349A (en) * | 2016-10-28 | 2017-01-25 | 广东顺捷威玻璃机械有限公司 | Curved surface polishing machine |
| CN109129177A (en) * | 2018-07-20 | 2019-01-04 | 中国科学院西安光学精密机械研究所 | A kind of wheeled end burnishing device of public affairs rotation |
| CN209998978U (en) * | 2019-04-03 | 2020-01-31 | 中国科学院西安光学精密机械研究所 | planetary polishing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7491114B2 (en) * | 2006-11-17 | 2009-02-17 | Hong Zhang | Fiber optic polisher |
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| CN106346349A (en) * | 2016-10-28 | 2017-01-25 | 广东顺捷威玻璃机械有限公司 | Curved surface polishing machine |
| CN109129177A (en) * | 2018-07-20 | 2019-01-04 | 中国科学院西安光学精密机械研究所 | A kind of wheeled end burnishing device of public affairs rotation |
| CN209998978U (en) * | 2019-04-03 | 2020-01-31 | 中国科学院西安光学精密机械研究所 | planetary polishing device |
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