CN209998944U - A single transmission planetary polishing device - Google Patents

Abstract

The utility model relates to an end device for polishing, and provides a single-transmission planetary polishing device for the defects of unstable transmission, complex structure and large motion inertia of the existing planetary polishing device. The device includes a mounting seat, a drive motor, a driving shaft, a driven shaft and a sun gear assembly; the sun gear assembly includes a sun gear sleeve, a turntable, a hollow slider, a transition piece and a polishing disc; the sun gear sleeve is open up and down The convex-shaped connecting sleeve, the small end of which is fixed at the lower part of the mounting seat, and the large end is located outside the mounting seat; the shaft of the turntable is provided with a through hole, and the lower part is provided with a T-shaped groove; The driven shaft is worn on the sun gear sleeve, one end of which extends into the big end of the sun gear sleeve and is connected to the turntable; the big end of the sun gear sleeve is fixed with the sun gear; the upper part of the transition piece is rotatably installed on the hollow slide Inside the block, the polishing disc is fixedly connected with the transition connecting piece; the lower part of the transition connecting piece protrudes from the hollow slider, and the outer circumference of which is fixed with a sheathed planetary wheel.

Description

A single transmission planetary polishing device

technical field

The utility model relates to an end device for polishing, in particular to a single-drive planetary polishing device.

Background technique

Due to the excellent properties of aspherical optical elements, aspherical optical elements have been widely used in new-generation optical systems in recent years. However, due to the characteristics of non-uniform curvature of aspheric optical components, the required ultra-precision machining technology has always restricted the further development and application of aspheric surfaces. How to greatly improve the surface error convergence speed of optical aspheric surfaces is an urgent need. key issues to solve.

At present, computer-controlled optical surface forming technology is widely used in the field of aspheric surface processing. This technology uses the quantitative surface error data obtained by detection, combined with the removal function and the preset processing path, and obtains the dwell time according to a certain algorithm, so that the The surface error gradually converges, and finally meets the processing requirements.

Planetary polishing technology is a commonly used polishing technology in computer-controlled optical surface forming technology. However, the existing planetary polishing device has problems such as large rotational inertia, complicated structure of polishing head, and unstable power transmission.

For example, a Chinese patent (application number: CN200810051132.1) discloses a planetary active polishing device and method for optical components. The device adopts a parallel four-bar linkage mechanism to realize horizontal rotation, and the planetary motor drives the polishing die to rotate through a flexible shaft. However, due to the inherent properties of the flexible shaft transmission, its power transmission is not stable; and the rigidity of the parallel four-bar linkage is weak.

Another example, Chinese patent (application number: CN201410554563.5) discloses a large-diameter aspheric robot planetary polishing device, the rotation and revolution of the device are driven by two servo motors respectively, and the revolution transmission mechanism realizes the horizontal rotation of the planetary motion, The autorotation transmission mechanism adopts a secondary belt drive to fix the autorotation motor. However, the secondary belt drive makes the structure complicated, and the swing of the swing arm makes the motion inertia larger.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the existing planetary polishing device such as unstable transmission, complex structure and large motion inertia, and provide a single-transmission planetary polishing device. If the polishing device is combined with computer control technology, it can realize the polishing of high-efficiency and high-precision optical components, and is suitable for precision polishing of large-diameter aspherical components.

In order to achieve the above purpose, the technical solution provided by the present utility model is: a single-transmission planetary polishing device, which is special in that it includes a mounting seat and a drive motor, a driving shaft, a driven shaft and a sun gear arranged on the mounting seat. assembly; the output shaft of the drive motor is connected with the driving shaft, and the driving shaft is connected with the driven shaft through the transmission mechanism; the sun gear assembly includes a sun gear sleeve, a turntable, a hollow slider, a transition piece and a polishing disc; the sun gear sleeve is a The top and bottom are open convex-shaped connecting sleeves, the small end is fixed at the lower part of the mounting seat, and the large end is located outside the mounting seat; the shaft center of the turntable is provided with a through hole, and the lower part is provided with a T-shaped groove that penetrates the turntable horizontally; the hollow slider The upper end of the shaft is provided with a card slot adapted to the T-shaped groove, and its upper end is clamped into the T-shaped groove and can move along the T-shaped groove; The small end extends into the large end, and is connected with the turntable arranged in the large end of the sun gear sleeve through the through hole to drive the turntable to rotate; the inner wall of the end of the large end of the sun gear sleeve is fixedly installed with a sun gear with internal teeth; transition connection The upper part of the piece is rotatably installed in the hollow slider, and the polishing disc is fixedly connected with the transition piece; the lower part of the transition piece protrudes from the hollow piece, and the outer circumference of the piece is fixedly sleeved with a planetary gear engaged with the sun gear.

Further, the cross section of the above-mentioned through hole is a polygon, which can be a rectangle, a square or a regular hexagon; A turntable bearing is arranged on the inner wall of the end, and the inner ring of the turntable bearing is sleeved on the outer surface of the turntable; a pressure ring for pressing the turntable bearing is also arranged between the turntable bearing and the sun gear, and the outer wall of the pressure ring and the big end of the sun gear sleeve are arranged The inner walls fit tightly. By setting the turntable bearing, the shaking of the turntable rotation is further reduced, so that it runs more smoothly.

Further, the above-mentioned transition connecting piece is hinged with the polishing disc. Through the ball hinge, the polishing disc can be positively pressed against the mirror surface to ensure the stability of the polishing removal amount of the workpiece.

Further, the above-mentioned driven shaft is a hollow stepped shaft, and a rotary joint is installed on its upper end; the above-mentioned transition connecting piece is a cylinder, and the air inlet at the upper end of the cylinder is equipped with a lower rotary joint, and the lower rotary joint is connected to the hollow driven shaft through a pipeline. The lower end is communicated; the piston rod at the lower end of the cylinder is hinged with the polishing disc.

Further, the upper end of the outer circumference of the turntable is provided with a ring of flanges for axial positioning of the turntable.

Further, the above-mentioned transmission mechanism is a gear transmission mechanism or a belt transmission mechanism or a chain transmission mechanism.

Further, the above-mentioned belt transmission mechanism includes a small driving pulley provided on the driving shaft, a large driven pulley provided on the driven shaft, and a toothed belt connecting the driving pulley and the driven pulley. The toothed belt drive has vibration absorption buffer, stable transmission, relatively accurate transmission, and can transmit power in a large distance between axes.

Further, the above-mentioned driving shaft and the driven shaft are parallel to each other and are arranged at intervals; the above-mentioned mounting seat includes a base and a support shell fixed on the upper surface of the base, and the base is provided with a first mounting hole for installing the driving shaft and an installation. The second mounting hole of the sun gear sleeve, and the third mounting hole for mounting the drive motor is provided on the top of the support shell. The driving shaft is installed in the first installation hole through the bearing, and the small end of the sun gear sleeve is fixedly installed in the second installation hole. The support shell seals the transmission mechanism to prevent the toothed belt debris from falling on the mirror surface; the structure of the support shell is easy to disassemble, and the transmission pulley can be easily replaced and the ratio of the public to the self-speed can be adjusted.

Further, the upper part of the transition connecting piece is installed in the hollow sliding block through a rolling bearing or a sliding bearing.

At the same time, the utility model also provides another single-drive planetary polishing device, which is special in that it includes a mounting seat and a drive motor, a driving shaft and a sun gear assembly arranged on the mounting seat; the sun gear assembly includes a sun gear Sleeve, turntable, hollow slider, transition connecting piece and polishing disc; sun gear sleeve is a hollow connecting sleeve with openings on both sides, one end of which is fixed at the lower part of the mounting seat, and the other end is located outside the mounting seat; the axis of the turntable is opened A through hole, the lower part is provided with a T-shaped slot that runs through the turntable horizontally; the upper end of the hollow slider is provided with a slot that fits with the T-shaped slot, and its upper end is snapped into the T-shaped slot and can move along the T-shaped slot; One end of the shaft is connected with the output shaft of the drive motor, and the other end passes through the mounting seat and the opening at one end of the sun gear sleeve, then extends into the sun gear sleeve cavity, and is connected to the turntable arranged in the sun gear sleeve through the through hole ; The inner wall of the end of the other end of the sun gear sleeve is fixedly installed with a sun gear with internal teeth; the upper part of the transition piece is rotatably installed in the hollow slider, and the polishing disc is connected with the transition piece; the lower part of the transition piece extends out A hollow slider, the outer circumference of which is fixedly sleeved with a planetary gear that meshes with the sun gear.

Further, the mounting seat is provided with a cavity, the active shaft is a hollow stepped shaft, and a first exhaust hole is opened on its side wall; it also includes an exhaust assembly arranged in the cavity of the mounting seat, and the exhaust assembly includes the same The shaft is arranged in order on the annular revolving body and the annular sleeve body outside the driving shaft, and the bearing arranged between the annular revolving body and the annular sleeve body; an annular groove connected with the holes; the outer side of the annular sleeve body is provided with a gas nozzle joint that communicates with the annular groove, and the mounting seat is provided with a gas hole that communicates with the cavity of the mounting seat; the transition connecting piece is a cylinder, and the air inlet at the upper end of the cylinder is equipped with a rotary joint , the rotary joint is communicated with the lower end of the hollow drive shaft through a pipeline; a turntable bearing is arranged in the cavity of the sun gear sleeve, and the inner ring of the turntable bearing is sleeved on the outer surface of the turntable; there is also a connection between the turntable bearing and the sun gear A pressure ring is provided for compressing the turntable bearing, and the outer wall of the pressure ring is closely fitted with the inner wall of the sun gear sleeve; the transition connecting piece is hinged with the polishing disc.

Compared with the prior art, the advantages of the present utility model are:

1. By adopting the planetary gear train structure in the present invention, only one motor is used to realize the revolution and rotation of the polishing disc, which makes the polishing device simple in structure, light in weight and small in moment of inertia.

2. The utility model supplies compressed air to the cylinder through the upper rotary joint, the central hole of the driven shaft and the lower rotary joint to control the polishing pressure of the polishing disc; and then through the ball hinge, the polishing disc can be positively pressed on the mirror surface, effectively ensuring the processed Parts polishing removal stability.

3. The utility model adopts the transmission mechanism and the sun gear assembly, and the number of teeth of the sun gear and the planetary gear can be changed at the same time, so that the fine adjustment of the revolution speed can be easily realized; the polishing disc can also be conveniently changed by changing the number of teeth of the planetary gear. eccentricity.

4. The polishing device of the present invention can realize the polishing of high-efficiency and high-precision optical elements by combining with the computer control technology, and is suitable for the precise polishing of large-diameter aspherical elements.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the polishing device of the present utility model;

Fig. 2 is the axial side view of the turntable of the polishing device of the present invention;

3 is a perspective view of the hollow slider of the polishing device of the present invention;

4 is a front sectional view of Embodiment 1 of the polishing device of the present invention;

Fig. 5 is the front sectional view of the second embodiment of the polishing device of the present invention;

6 is a front sectional view of Embodiment 3 of the polishing device of the present invention;

7 is a front sectional view of Embodiment 4 of the polishing device of the present invention;

8 is a front sectional view of Embodiment 5 of the polishing device of the present invention;

FIG. 9 is a partial enlarged view of part I of FIG. 8 .

The description of each label in the figure is as follows:

1—mounting seat, 11—base, 12—supporting shell;

2—drive motor;

3—drive shaft, 31—first exhaust hole;

4—transmission mechanism, 41—active small pulley, 42—toothed belt, 43—driven large pulley;

5—driven shaft, 51—upper rotary joint;

6—Sun gear assembly;

61—Sun gear sleeve, 611—Turntable bearing, 612—Pressure ring, 613—Sun gear;

62—turntable, 621—through hole, 622—T-shaped slot;

63—Hollow slider;

64—transition connecting piece, 641—planet gear, 642—lower rotary joint;

65—polishing disc;

7-Exhaust assembly, 71-Annular rotary body, 711-Annular groove, 72-Annular sleeve, 74-Air nozzle joint, 75-Air hole.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Example 1

As shown in Figures 1 and 4, this embodiment provides a single-drive planetary polishing device, including a mounting seat 1, a drive motor 2, a driving shaft 3, a transmission mechanism 4, a driven shaft 5 and a sun gear assembly 6; the sun gear The assembly 6 includes a sun gear sleeve 61 , a turntable 62 , a hollow slider 63 , a transition piece 64 and a polishing disc 65 .

The mounting seat 1 includes a base 11 and a support shell 12 fixed on the upper surface of the base 11. The base 11 is provided with a first mounting hole for mounting the driving shaft 3 and a second mounting hole for mounting the sun gear sleeve 61. A third mounting hole for mounting the driving motor 2 is defined on the top of the casing 12 . The driven shaft 5 is arranged in the mounting seat 1 at intervals parallel to the driving shaft 3 .

The sun gear sleeve 61 is a convex-shaped connecting sleeve with openings up and down.

The output shaft of the drive motor 2 is connected with the drive shaft 3 through a coupling, and the drive shaft 3 is connected with the driven shaft 5 through a transmission mechanism 4 . The transmission mechanism 4 is a belt transmission mechanism, which specifically includes a small driving pulley 41 arranged on the driving shaft 3, a large driven pulley 43 arranged on the driven shaft 5, and a tooth profile connecting the driving pulley and the driven pulley. Band 42.

As shown in FIG. 2 , a through hole 621 is provided in the shaft center of the turntable 62, and a T-shaped groove 622 transversely penetrates the turntable 62 at the lower part; as shown in FIG. 3, the upper end of the hollow slider 63 is provided with a T-shaped groove 622 to match The upper end of the slot is clipped into the T-shaped slot 622 and can move along the T-shaped slot 622;

The driven shaft 5 passes through the bearing on the sun gear sleeve 61, one end of the driven shaft 5 extends into the large end through the small end of the sun gear sleeve 61, and is connected with the turntable 62 arranged in the large end of the sun gear sleeve 61 through the through hole 621, The turntable 62 is driven to rotate.

The inner wall of the big end of the sun gear sleeve 61 is fixedly installed with a sun gear 613 with internal teeth; the upper part of the transition connecting piece 64 is installed in the hollow slider 63 through a rolling bearing, and the polishing disc 65 is spherically connected with the transition connecting piece 64; The lower part of the piece 64 protrudes from the hollow sliding block 63 , the outer circumference of which is fixedly sleeved with a planetary gear 641 that engages with the sun gear 613 .

The working process of this embodiment:

During the polishing operation, the driving motor 2 drives the driving shaft 3 to rotate.

The driving shaft 3 rotates the driven shaft 5 through the transmission mechanism 4, the driven shaft 5 drives the turntable 62 to rotate, and the turntable 62 makes the transition connecting piece 64 revolve around the driven shaft 5 through the hollow slider 63; The planetary gear 641 meshed with the sun gear 613 in the sleeve 61 drives the polishing disc 65 to revolve around the driven shaft 5; the polishing disc 65 rotates around its central axis while revolving.

During polishing, the eccentricity of the polishing disk can be adjusted by replacing the planetary wheels 641 with different numbers of teeth and adjusting the position of the hollow slider on the turntable 61 .

The number of teeth of the sun gear 613 and the planetary gear 641 can also be changed at the same time, so as to conveniently realize the fine adjustment of the revolution speed.

Embodiment 2

As shown in Figures 1 and 5, this embodiment provides a single-drive planetary polishing device, including a mounting seat 1, a drive motor 2, a driving shaft 3, a transmission mechanism 4, a driven shaft 5 and a sun gear assembly 6; a driven The shaft 5 is a hollow stepped shaft, and a rotary joint 51 is installed on the upper end of the shaft 5 . The sun gear assembly 6 includes a sun gear sleeve 61 , a turntable 62 , a hollow slider 63 , a transition piece 64 and a polishing disc 65 .

The mounting seat 1 includes a base 11 and a support shell 12 fixed on the upper surface of the base 11. The base 11 is provided with a first mounting hole for mounting the driving shaft 3 and a second mounting hole for mounting the sun gear sleeve 61. A third mounting hole for mounting the driving motor 2 is defined on the top of the casing 12 . The driven shaft 5 is arranged in the mounting seat 1 at intervals parallel to the driving shaft 3 .

The sun gear sleeve 61 is a convex-shaped connecting sleeve with openings up and down. The transition piece 64 is a cylinder, and a lower rotary joint 642 is installed on the air inlet at the upper end of the cylinder, and the lower rotary joint 642 communicates with the lower end of the hollow driven shaft 5 through a pipeline.

The output shaft of the drive motor 2 is connected with the drive shaft 3 through a coupling, and the drive shaft 3 is connected with the driven shaft 5 through a transmission mechanism 4 . The transmission mechanism 4 is a belt transmission mechanism, which specifically includes a small driving pulley 41 arranged on the driving shaft 3, a large driven pulley 43 arranged on the driven shaft 5, and a tooth profile connecting the driving pulley and the driven pulley. Band 42.

As shown in FIG. 2 , a through hole 621 is provided in the shaft center of the turntable 62, and a T-shaped groove 622 transversely penetrates the turntable 62 at the lower part; as shown in FIG. 3, the upper end of the hollow slider 63 is provided with a T-shaped groove 622 to match The upper end of the slot is clipped into the T-shaped slot 622 and can move along the T-shaped slot 622;

The driven shaft 5 passes through the bearing on the sun gear sleeve 61, one end of the driven shaft 5 extends into the large end through the small end of the sun gear sleeve 61, and is connected with the turntable 62 arranged in the large end of the sun gear sleeve 61 through the through hole 621, The turntable 62 is driven to rotate.

The inner wall of the big end of the sun gear sleeve 61 is fixedly installed with a sun gear 613 with internal teeth; the upper part of the transition connecting piece 64 is installed in the hollow slider 63 through a rolling bearing, and the polishing disc 65 is spherically connected with the transition connecting piece 64; The lower part of the piece 64 protrudes from the hollow sliding block 63 , the outer circumference of which is fixedly sleeved with a planetary gear 641 that engages with the sun gear 613 .

The working process of this embodiment:

During the polishing operation, the driving motor 2 drives the driving shaft 3 to rotate.

The driving shaft 3 rotates the driven shaft 5 through the transmission mechanism 4, the driven shaft 5 drives the turntable 62 to rotate, and the turntable 62 makes the transition connecting piece 64 revolve around the driven shaft 5 through the hollow slider 63; The planetary gear 641 meshed with the sun gear 613 in the sleeve 61 drives the polishing disc 65 to revolve around the driven shaft 5; the polishing disc 65 rotates around its central axis while revolving.

During polishing, the eccentricity of the polishing disk can be adjusted by replacing the planetary wheels 641 with different numbers of teeth and adjusting the position of the hollow slider on the turntable 61 .

The number of teeth of the sun gear 613 and the planetary gear 641 can also be changed at the same time, so as to conveniently realize the fine adjustment of the revolution speed.

Compressed air can also be supplied to the cylinder through the upper rotary joint 51 , the central hole of the driven shaft 5 and the lower rotary joint 642 to control the polishing pressure of the polishing disc 65 .

Embodiment 3

As shown in Figures 1 and 6, this embodiment provides a single-drive planetary polishing device, including a mounting seat 1, a drive motor 2, a driving shaft 3, a transmission mechanism 4, a driven shaft 5 and a sun gear assembly 6; the sun gear The assembly 6 includes a sun gear sleeve 61 , a turntable 62 , a hollow slider 63 , a transition piece 64 and a polishing disc 65 .

The mounting seat 1 includes a base 11 and a support shell 12 fixed on the upper surface of the base 11. The base 11 is provided with a first mounting hole for mounting the driving shaft 3 and a second mounting hole for mounting the sun gear sleeve 61. A third mounting hole for mounting the driving motor 2 is defined on the top of the casing 12 . The driven shaft 5 is arranged in the mounting seat 1 at intervals parallel to the driving shaft 3 .

The sun gear sleeve 61 is a convex-shaped connecting sleeve with openings up and down.

The output shaft of the drive motor 2 is connected with the drive shaft 3 through a coupling, and the drive shaft 3 is connected with the driven shaft 5 through a transmission mechanism 4 . The transmission mechanism 4 is a belt transmission mechanism, which specifically includes a small driving pulley 41 arranged on the driving shaft 3, a large driven pulley 43 arranged on the driven shaft 5, and a tooth profile connecting the driving pulley and the driven pulley. Band 42.

As shown in FIG. 2 , a through hole 621 with a square cross-section is formed on the axis of the turntable 62 , and a T-shaped groove 622 transversely penetrates the turntable 62 at the lower part; as shown in FIG. 3 , the upper end of the hollow slider 63 is provided with a T The upper end of the slot that fits into the T-shaped slot 622 is inserted into the T-shaped slot 622 and can move along the T-shaped slot 622 ;

The driven shaft 5 passes through the sun gear sleeve 61 through the bearing, and the shape of one end connected with the turntable 62 matches the shape of the through hole 621; the end extends into the large end through the small end of the sun gear sleeve 61, and is inserted In the square through hole 621, the driven shaft 5 can drive the turntable 62 disposed in the large end of the sun gear sleeve 61 to rotate; the end of the driven shaft 5 can also be interfered with the through hole 621 or welded in other ways. Fixed connection. Compared with the fixed connection method, the plug connection is more convenient for the disassembly and replacement of the turntable 62 .

The inner wall of the big end of the sun gear sleeve 61 is provided with a turntable bearing 611, and the inner ring of the turntable bearing 611 is sleeved on the outer surface of the turntable 62;

The inner wall of the big end of the sun gear sleeve 61 is fixedly installed with a sun gear 613 with internal teeth; between the turntable bearing 611 and the sun gear 613, a pressure ring 612 for pressing the turntable bearing 611 is provided, and the outer wall of the pressure ring 612 is connected to the sun gear. The inner wall of the big end of the sleeve 61 is tightly fitted.

The upper part of the transition piece 64 is installed in the hollow slider 63 through a rolling bearing, and the polishing disc 65 is spherically connected with the transition piece 64; the lower part of the transition piece 64 protrudes from the hollow slider 63, and its outer circumference is fixedly sleeved with the sun gear 613 The meshing planet gears 641 .

The working process of this embodiment:

During the polishing operation, the driving motor 2 drives the driving shaft 3 to rotate.

The driving shaft 3 rotates the driven shaft 5 through the transmission mechanism 4, the driven shaft 5 drives the turntable 62 to rotate, and the turntable 62 makes the transition connecting piece 64 revolve around the driven shaft 5 through the hollow slider 63; The planetary gear 641 meshed with the sun gear 613 in the sleeve 61 drives the polishing disc 65 to revolve around the driven shaft 5; the polishing disc 65 rotates around its central axis while revolving.

During polishing, the eccentricity of the polishing disk can be adjusted by replacing the planetary wheels 641 with different numbers of teeth and adjusting the position of the hollow slider on the turntable 61 .

The number of teeth of the sun gear 613 and the planetary gear 641 can also be changed at the same time, so as to conveniently realize the fine adjustment of the revolution speed.

Embodiment 4

As shown in Figures 1 and 7, this embodiment provides a single-drive planetary polishing device, including a mounting seat 1, a drive motor 2, a driving shaft 3, a transmission mechanism 4, a driven shaft 5 and a sun gear assembly 6; a driven The shaft 5 is a hollow stepped shaft, and a rotary joint 51 is installed on the upper end of the shaft 5 . The sun gear assembly 6 includes a sun gear sleeve 61 , a turntable 62 , a hollow slider 63 , a transition piece 64 and a polishing disc 65 .

The mounting seat 1 includes a base 11 and a support shell 12 fixed on the upper surface of the base 11. The base 11 is provided with a first mounting hole for mounting the driving shaft 3 and a second mounting hole for mounting the sun gear sleeve 61. A third mounting hole for mounting the driving motor 2 is defined on the top of the casing 12 . The driven shaft 5 is arranged in the mounting seat 1 at intervals parallel to the driving shaft 3 .

The sun gear sleeve 61 is a convex-shaped connecting sleeve with openings up and down. The transition piece 64 is a cylinder, and a lower rotary joint 642 is installed on the air inlet at the upper end of the cylinder, and the lower rotary joint 642 communicates with the lower end of the hollow driven shaft 5 through a pipeline.

The output shaft of the drive motor 2 is connected with the drive shaft 3 through a coupling, and the drive shaft 3 is connected with the driven shaft 5 through a transmission mechanism 4 . The transmission mechanism 4 is a belt transmission mechanism, which specifically includes a small driving pulley 41 arranged on the driving shaft 3, a large driven pulley 43 arranged on the driven shaft 5, and a tooth profile connecting the driving pulley and the driven pulley. Band 42.

As shown in FIG. 2 , a through hole 621 with a square cross-section is formed on the axis of the turntable 62 , and a T-shaped groove 622 transversely penetrates the turntable 62 at the lower part; as shown in FIG. 3 , the upper end of the hollow slider 63 is provided with a T The upper end of the slot that fits into the T-shaped slot 622 is inserted into the T-shaped slot 622 and can move along the T-shaped slot 622 ;

The driven shaft 5 passes through the sun gear sleeve 61 through the bearing, and the shape of one end connected with the turntable 62 matches the shape of the through hole 621; the end extends into the large end through the small end of the sun gear sleeve 61, and is inserted In the square through hole 621, the driven shaft 5 can drive the turntable 62 disposed in the large end of the sun gear sleeve 61 to rotate; the end of the driven shaft 5 can also be interfered with the through hole 621 or welded in other ways. Fixed connection. Compared with the fixed connection method, the plug connection is more convenient for the disassembly and replacement of the turntable 62 .

The inner wall of the big end of the sun gear sleeve 61 is provided with a turntable bearing 611, and the inner ring of the turntable bearing 611 is sleeved on the outer surface of the turntable 62;

The inner wall of the big end of the sun gear sleeve 61 is fixedly installed with a sun gear 613 with internal teeth; between the turntable bearing 611 and the sun gear 613, a pressure ring 612 for pressing the turntable bearing 611 is provided, and the outer wall of the pressure ring 612 is connected to the sun gear. The inner wall of the big end of the sleeve 61 is tightly fitted.

The upper part of the transition piece 64 is installed in the hollow slider 63 through a rolling bearing, and the polishing disc 65 is spherically connected with the transition piece 64; the lower part of the transition piece 64 protrudes from the hollow slider 63, and its outer circumference is fixedly sleeved with the sun gear 613 The meshing planet gears 641 .

The working process of this embodiment:

During the polishing operation, the driving motor 2 drives the driving shaft 3 to rotate.

The driving shaft 3 rotates the driven shaft 5 through the transmission mechanism 4, the driven shaft 5 drives the turntable 62 to rotate, and the turntable 62 makes the transition connecting piece 64 revolve around the driven shaft 5 through the hollow slider 63; The planetary gear 641 meshed with the sun gear 613 in the sleeve 61 drives the polishing disc 65 to revolve around the driven shaft 5; the polishing disc 65 rotates around its central axis while revolving.

During polishing, the eccentricity of the polishing disk can be adjusted by replacing the planetary wheels 641 with different numbers of teeth and adjusting the position of the hollow slider on the turntable 61 .

The number of teeth of the sun gear 613 and the planetary gear 641 can also be changed at the same time, so as to conveniently realize the fine adjustment of the revolution speed.

Compressed air can also be supplied to the cylinder through the upper rotary joint 51 , the central hole of the driven shaft 5 and the lower rotary joint 642 to control the polishing pressure of the polishing disc 65 .

Embodiment 5

As shown in FIG. 1 and FIG. 8 , this embodiment provides a single-drive planetary polishing device, including a mounting seat 1, a drive motor 2, a driving shaft 3 and a sun gear assembly 6; the driving shaft 3 is a hollow stepped shaft, and its side A first exhaust hole 31 is opened on the wall. The sun gear assembly 6 includes a sun gear sleeve 61 , a turntable 62 , a hollow slider 63 , a transition piece 64 and a polishing disc 65 .

The top of the mounting seat 1 is provided with a third mounting hole for installing the drive motor 2, and the lower part thereof is provided with a first mounting hole for mounting the driving shaft 3; the mounting seat 1 is provided with a cavity, and the cavity is provided with an exhaust assembly, as shown in the figure As shown in 9, the exhaust assembly 7 includes an annular rotating body 71 and an annular sleeve body 72 arranged coaxially on the outside of the driving shaft 3 in sequence, and a bearing arranged between the annular rotating body and the annular sleeve body; the annular rotating body 71 and the driving shaft 3 For interference fit, an annular groove 711 that communicates with the first exhaust hole 31 is formed on the annular rotating body 71; Air holes 75 communicating with the seat cavity;

The sun gear sleeve 61 is a hollow connecting sleeve with openings at the top and bottom, one end of which is fixedly arranged at the lower part of the mounting seat 1 , and the other end is located outside the mounting seat 1 . The transition piece 64 is a cylinder, and a lower rotary joint 642 is installed on the air inlet at the upper end of the cylinder, and the lower rotary joint 642 communicates with the lower end of the hollow driving shaft 3 through a pipeline.

As shown in FIG. 2 , a through hole 621 with a square cross-section is formed on the axis of the turntable 62 , and a T-shaped groove 622 transversely penetrates the turntable 62 at the lower part; as shown in FIG. 3 , the upper end of the hollow slider 63 is provided with a T The upper end of the slot that fits into the T-shaped slot 622 is inserted into the T-shaped slot 622 and can move along the T-shaped slot 622 ;

One end of the driving shaft 3 is connected with the output shaft of the drive motor 2 through a coupling, the driving shaft 3 is arranged in the mounting seat through a bearing, and the other end of the driving shaft 3 passes through the opening of one end of the mounting seat 1 and the sun gear sleeve 61, and extends. It is inserted into the cavity of the sun gear sleeve 61, and is inserted into the square through hole 621 to be connected with the turntable 62 arranged in the sun gear sleeve 61, so that the driving shaft 3 can drive the turntable 62 arranged in the cavity of the sun gear sleeve 61 to rotate, or it can be The end of the driving shaft 3 is fixedly connected to the through hole 621 by interference fit or welding or other means. Compared with the fixed connection method, the plug connection is more convenient for the disassembly and replacement of the turntable 62 .

The inner wall of the sun gear sleeve 61 is provided with a turntable bearing 611, and the inner ring of the turntable bearing 611 is sleeved on the outer surface of the turntable 62;

The inner wall of the end of the other end of the sun gear sleeve 61 is fixedly installed with a sun gear 613 with internal teeth; a pressure ring 612 for pressing the turntable bearing 611 is provided between the turntable bearing 611 and the sun gear 613, and the outer wall of the pressure ring 612 is connected to the sun gear. The inner wall of the wheel sleeve 61 is in close contact with each other.

The upper part of the transition piece 64 is installed in the hollow slider 63 through a rolling bearing, and the polishing disc 65 is spherically connected with the transition piece 64; the lower part of the transition piece 64 protrudes from the hollow slider 63, and its outer circumference is fixedly sleeved with the sun gear 613 The meshing planet gears 641 .

The working process of this embodiment:

During the polishing operation, the driving motor 2 drives the driving shaft 3 to rotate.

The drive shaft 3 drives the turntable 62 to rotate, and the turntable 62 makes the transition piece 64 revolve around the drive shaft 3 through the hollow slider 63; Revolves around the driving shaft 3; the polishing disc 65 rotates around its central axis while revolving.

During polishing, the eccentricity of the polishing disk can be adjusted by replacing the planetary wheels 641 with different numbers of teeth and adjusting the position of the hollow slider on the turntable 61 .

The number of teeth of the sun gear 613 and the planetary gear 641 can also be changed at the same time, so as to conveniently realize the fine adjustment of the revolution speed.

Compressed air can also be supplied to the cylinder through the air hole 75 on the mounting seat, the air nozzle joint 74 in the mounting seat cavity, the annular groove 711, the first exhaust hole 31, the central hole of the driving shaft 3 and the lower rotary joint 642 to control the throwing. Disc 65 polishing pressure.

The above only describes the preferred embodiments of the present invention, and does not limit the technical solutions of the present invention to this. Any known deformations made by those skilled in the art on the basis of the main technical concept of the present invention belong to the present invention. The technical scope to be protected by the utility model.

Claims (10)

1. A single-drive planetary polishing device, characterized in that: it comprises a mounting seat (1) and a drive motor (2), a driving shaft (3), a driven shaft (5) and a sun which are arranged on the mounting seat (1) Wheel assembly (6); the output shaft of the driving motor (2) is connected with the driving shaft (3), and the driving shaft (3) is connected with the driven shaft (5) through the transmission mechanism (4); The sun gear assembly (6) includes a sun gear sleeve (61), a turntable (62), a hollow slider (63), a transition piece (64) and a polishing disc (65); It is an open convex-shaped connecting sleeve, the small end of which is fixedly arranged at the lower part of the mounting seat (1), and the large end is located outside the mounting seat (1); The shaft center of the turntable (62) is provided with a through hole (621), and the lower part is provided with a T-shaped groove (622) transversely passing through the turntable (62); The upper end of the hollow slider (63) is provided with a card slot adapted to the T-shaped groove (622), and the upper end of the hollow slider (63) is snapped into the T-shaped groove (622) and can move along the T-shaped groove (622); The driven shaft (5) is passed through the sun gear sleeve (61), and one end of the driven shaft (5) extends into the large end through the small end of the sun gear sleeve (61), and passes through the through hole (621) and is connected to the sun gear sleeve (61). 61) The turntable (62) in the big end is connected; The inner wall of the big end of the sun gear sleeve (61) is fixedly mounted with a sun gear (613) with internal teeth; The upper part of the transition piece (64) is rotatably installed in the hollow slider (63), and the polishing disc (65) is connected with the transition piece (64); the lower part of the transition piece (64) protrudes from the hollow slide (63) ), the outer circumference of which is fixedly sleeved with the planetary gear (641) engaged with the sun gear (613). 2. A single-drive planetary polishing device according to claim 1, characterized in that: the cross-section of the through hole (621) is a polygon; the end of the driven shaft (5) connected to the turntable (62) The shape matches the shape of the through hole (621); A turntable bearing (611) is arranged on the inner wall of the big 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 pressure ring (612) for pressing the turntable bearing (611) is further provided between the turntable bearing (611) and the sun gear (613), the outer wall of the pressure ring (612) and the big end of the sun gear sleeve (61) The inner walls fit tightly. 3 . The single-drive planetary polishing device according to claim 2 , wherein the transition piece ( 64 ) is hinged to the polishing disc ( 65 ). 4 . 4. A single-drive planetary polishing device according to claim 1, 2 or 3, characterized in that: the driven shaft (5) is a hollow stepped shaft, and a rotary joint (51) is installed on its upper end; The transition piece (64) is a cylinder, the air inlet at the upper end of the cylinder is installed with a lower rotary joint (642), and the lower rotary joint (642) communicates with the lower end of the hollow driven shaft (5) through a pipeline. 5. A single-drive planetary polishing device according to claim 4, characterized in that: the upper end of the outer circumference of the turntable (62) is provided with a flange for axial positioning of the turntable (62); The transmission mechanism (4) is a gear transmission mechanism or a belt transmission mechanism or a chain transmission mechanism. 6. A single transmission planetary polishing device according to claim 5, characterized in that: the belt transmission mechanism (4) comprises a small driving pulley (41) arranged on the driving shaft (3), The driven large pulley (43) on the driven shaft (5) and the toothed belt (42) connecting the driving pulley and the driven pulley. 7. A single-drive planetary polishing device according to claim 6, characterized in that: the driving shaft (3) and the driven shaft (5) are arranged parallel to each other and spaced apart; the mounting seat (1) comprises a base A seat (11) and a support shell (12) fixed on the upper surface of the base (11), the base (11) is provided with a first mounting hole for installing the driving shaft (3) and a sun gear sleeve (61) The second installation hole of the support shell (12) is provided with a third installation hole at the top for installing the drive motor (2). 8 . The single-drive planetary polishing device according to claim 7 , wherein the upper part of the transition piece ( 64 ) is installed in the hollow slider ( 63 ) through a rolling bearing or a sliding bearing. 9 . 9. A single-drive planetary polishing device, characterized in that it comprises a mounting seat (1) and a drive motor (2), a driving shaft (3) and a sun gear assembly (6) arranged on the mounting seat (1); The sun gear assembly (6) includes a sun gear sleeve (61), a turntable (62), a hollow slider (63), a transition piece (64) and a polishing disc (65); It is an open hollow connection sleeve, one end of which is fixedly arranged at the lower part of the mounting seat (1), and the other end is located outside the mounting seat (1); The shaft center of the turntable (62) is provided with a through hole (621), and the lower part is provided with a T-shaped groove (622) transversely passing through the turntable (62); The upper end of the hollow slider (63) is provided with a card slot adapted to the T-shaped groove (622), and the upper end of the hollow slider (63) is snapped into the T-shaped groove (622) and can move along the T-shaped groove (622); One end of the driving shaft (3) is connected to the output shaft of the driving motor (2), and the other end of the driving shaft (3) extends into the cavity of the sun gear sleeve (61) after passing through the mounting seat (1) and the opening at one end of the sun gear sleeve (61), and is connected with the turntable (62) arranged in the sun gear sleeve (61) through the through hole (621); The inner wall of the end of the other end of the sun gear sleeve (61) is fixedly installed with a sun gear (613) with internal teeth; The upper part of the transition piece (64) is rotatably installed in the hollow slider (63), and the polishing disc (65) is connected with the transition piece (64); the lower part of the transition piece (64) protrudes from the hollow slide (63) ), the outer circumference of which is fixedly sleeved with the planetary gear (641) engaged with the sun gear (613). 10. A single-drive planetary polishing device according to claim 9, characterized in that: the mounting seat (1) is provided with a cavity, the driving shaft (3) is a hollow stepped shaft, and its side wall is open There is a first exhaust hole (31); It also includes an exhaust assembly disposed in the cavity of the mounting seat, and the exhaust assembly (7) includes an annular rotating body (71) and an annular sleeve body (72) that are coaxially disposed on the outside of the driving shaft (3) in sequence, and are disposed on the annular rotating body. and the bearing between the annular sleeve body; The annular revolving body (71) is in interference fit with the driving shaft (3). The annular revolving body (71) is provided with an annular groove (711) communicating with the first exhaust hole (31); There is a gas nozzle joint (74) communicating with the annular groove (711), The mounting seat (1) is provided with an air hole (75) communicating with the mounting seat cavity; The transition piece (64) is a cylinder, and a rotary joint (642) is installed at the air inlet at the upper end of the cylinder, and the rotary joint (642) is communicated with the lower end of the hollow driving shaft (3) through a pipeline; the sun gear sleeve (61) ) A turntable bearing (611) is arranged in the cavity, and the inner ring of the turntable bearing (611) is sleeved on the outer surface of the turntable (62); A pressure ring (612) for compressing the turntable bearing (611) is further provided between the turntable bearing (611) and the sun gear (613), and the outer wall of the pressure ring (612) is closely connected with the inner wall of the sun gear sleeve (61). fit; The transition piece (64) is hinged to the polishing disc (65).

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