WO2022062298A1

WO2022062298A1 - Grinding and polishing apparatus

Info

Publication number: WO2022062298A1
Application number: PCT/CN2021/075020
Authority: WO
Inventors: 林智敏; 洪培英; 魏随吉; 林榕栋; 黄嘉鸿
Original assignee: 泉州市海恩德机电科技发展有限公司
Priority date: 2020-09-27
Filing date: 2021-03-29
Publication date: 2022-03-31
Also published as: CN112264858A; CN112264858B

Abstract

A grinding and polishing apparatus, comprising a base (1), a conveyer belt (11), a swing beam (2), and at least one grinding main machine mounted on the swing beam (2). The conveyor belt (11) is mounted on the base (1); a first support base (12) and a second support base (13) are provided above the base (1); the swing beam (2) comprises a main beam (21) and a first moving base (22) and a second moving base (23) which are provided on two ends of the main beam; the first moving base (22) and the second moving base (23) are respectively placed on the first support base (12) and the second support base (13); a traveling mechanism (7) used for driving the swing beam to reciprocatingly swing on the first support base and the second support base is further provided on the swing beam; the traveling mechanism (7) comprises a driving shaft (71), two driving gears (72), traveling motors (73), and two racks (74). According to the apparatus, the driving gears provided at both sides of the driving shaft are configured to be meshed with the racks, thereby ensuring the stability of transverse swinging of the swing beam.

Description

A grinding and polishing device

技术领域technical field

The invention relates to the field of grinding devices, in particular to a grinding and polishing device.

背景技术Background technique

During the processing of stone and other plates, grinding and polishing are required. The surface of the plate is continuously polished by the grinding head, so that the surface of the plate has a certain smoothness. Most of the current stone grinding and polishing devices use a belt conveying mechanism to convey stone, and a swing beam is arranged above the belt conveying mechanism. The grinding head on the stone is driven to polish the surface of the stone; however, the existing grinding and polishing device has the disadvantage of poor stability, resulting in poor surface quality of the processed plate.

In view of this, the applicant has conducted in-depth research on the above-mentioned defects in the prior art, resulting in this case.

发明内容SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a grinding and polishing device, which has the characteristics of improving the smoothness and quality of grinding and polishing.

In order to achieve the above-mentioned purpose, the solution of the present invention is:

A grinding and polishing device includes a base, a conveyor belt, a swing beam, and at least one grinding host installed on the swing beam; the conveyor belt is installed on the base, and a first support seat and a base are arranged above the base. a second support seat; the swing beam includes a main beam and a first movable seat and a second movable seat disposed at both ends of the main beam; the first movable seat and the second movable seat are respectively placed on the first support seat and on the second support base, the pendulum beam is also provided with a traveling mechanism for driving the pendulum beam to swing back and forth on the first support base and the second support base;

The traveling mechanism includes a drive shaft, two drive gears, a traveling motor and two tooth rows, and the drive shaft is arranged along the length direction of the main beam and protrudes from the first moving seat and the second moving seat In addition, the drive gears are respectively connected to the ends of the drive shaft, the traveling motor is fixedly arranged on the main beam and drives the drive shaft to rotate, and the two gear rows are respectively fixed to install the first A support base and a second support base are meshed and connected with the drive gear.

Further, the grinding host includes a seat body, a main shaft, a grinding head and a drive motor; the seat body is installed on the main beam, the main shaft is rotatably installed on the seat body, and the drive motor is fixedly installed on the The main shaft is driven to rotate on the seat body, and the grinding head is installed on the lower end of the main shaft.

Further, the seat body is machined after casting; the seat body includes a supporting frame, a central cylinder and a motor mounting seat that are integrally connected, the central cylinder is formed in the middle of the supporting frame, and the main shaft is rotatably connected to inside the center cylinder; the motor mounting seat is connected to the upper end of the support frame and overhangs the outside of the support frame; a first mounting surface is formed on the outer side wall of the support frame under the motor mounting seat, and the first mounting surface is A first support slot is formed on the upper end of an installation and fitting surface; a second installation and fitting surface is arranged on the outer side wall of the swing beam and is fitted with the first installation and fitting surface, and the upper end of the second installation and fitting surface is provided A second support slot is provided, and the first support slot is overlapped on the second support slot from top to bottom; the motor mounting seat and the drive motor are located above the swing beam.

Further, the main shaft includes an outer shaft barrel and an inner shaft, the outer shaft barrel is rotatably connected with the central barrel, a spline sleeve is arranged in the outer shaft barrel, and an inner wall is formed on the inner wall of the spline sleeve. Splines, external splines are arranged on the outside of the inner shaft, and the inner shaft is connected with the spline sleeve through the splines to be able to slide along the axial direction of the outer shaft barrel; the upper end of the outer shaft barrel is connected with a A driven wheel, the driven wheel is connected with the driving wheel on the output shaft of the drive motor through a transmission component.

Further, locking mounting holes are formed on both the first mounting surface and the second mounting surface, and the locking mounting holes are provided with the first mounting surface and the second mounting surface for grinding the host. Install the fasteners that lock the fit on the mating surface.

Further, the grinding head includes a central shaft, a casing, a differential mechanism, a rail block and several swing seats; a central shaft is arranged in the casing, and the casing and the central shaft rotate at the same speed; the rail block is provided with Inside the casing and rotatably connected to the central shaft, a plurality of the swinging seats are rotatably connected to the casing, and a grinding block mounting seat located on the outside of the casing is formed on the swinging seats; The central shaft is connected in a coaxial rotation; the track block is provided with a slide rail, and one end of the swing seat in the outer casing is provided with a drive swing rod, and the free end of the drive swing rod is provided with a rolling connection to the The roller in the sliding rail; a differential mechanism is connected between the track block and the central shaft, and the differential mechanism drives the track block and the central shaft to form differential motion; the swing of the swing seat The axis is set perpendicular to the central axis.

Further, the differential mechanism includes a first external gear, a second external gear and an internal ring gear; the first external gear is connected to the central shaft through a spline, and the second external gear is fixed to the track block Connected and coaxially arranged with the central shaft; eccentrically arranged with the central shaft through an external gear ring and meshed with the first external gear and the second external gear at the same time; the first external gear and the second external gear External gears have different numbers of teeth.

Further, the number of teeth of the first external gear and the second external gear differ by one tooth.

Further, the upper part of the inner shaft is connected with a lifting device for driving the lifting and lowering of the inner shaft; the lifting device includes a driving seat, a lifting oil cylinder and an oil cylinder mounting seat; the driving seat is rotatably connected with the inner shaft, and the oil cylinder The mounting seat is arranged on the seat body, the lifting oil cylinder is fixedly connected with the oil cylinder mounting seat, and the lower end of the piston rod of the lifting oil cylinder is fixedly connected with the driving seat.

Further, a bearing support is arranged on the outer side of the inner gear ring, and a needle roller without an inner ring bearing is arranged between the inner gear ring and the bearing support; an upper fixing seat is connected to the bearing support, and the The upper fixing base is rotatably connected with the central shaft, and a fixing mechanism is connected to the upper fixing base so that the upper fixing base does not rotate with the central shaft; the fixing mechanism includes a limit rod connected to the base body, The lower end of the limit rod is locked or pressed against the upper surface of the upper fixed seat; the lower end of the seat is provided with a limit installation hole; the lower end of the seat is installed with a limit fixing plate, and the fixing plate is fixed by The limiter is fixedly connected with the limit installation hole; the fixed plate is formed with a limit through hole penetrating up and down; the limit rod can slide up and down on the seat body along with the lifting and lowering of the grinding head.

After adopting the above structure, the present invention relates to a grinding and polishing device, which at least has the following beneficial effects:

1. The plate is conveyed by the conveyor belt, and the grinding host grinds the plate on the conveyor belt through the grinding head. With the conveying of the conveyor belt, the pendulum beam moves along the width direction of the conveyor belt. Swing, so that the grinding machine can grind the plate evenly.

2. The drive shaft drives the two gears at the same time, and the rotational speeds at both ends of the drive shaft are consistent, which ensures the synchronism of the swing beam swing.

3. The seat body of the grinding host is integrally formed by casting, which improves the overall stability compared with the traditional way of making the seat body by welding and splicing steel plates.

Compared with the prior art, the present invention meshes with the tooth row by arranging the drive gears simultaneously arranged on both sides of the drive shaft, thus ensuring the stability of the pendulum beam when it swings laterally.

附图说明Description of drawings

FIG. 1 is a schematic three-dimensional structure diagram of a pendulum beam and a grinding host of the present invention.

FIG. 2 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 3 is a three-dimensional partial structural schematic diagram of the grinding host installed on the pendulum beam.

FIG. 4 is a schematic three-dimensional structural diagram of the grinding host installed on the main beam.

FIG. 5 is a schematic diagram of the rear view of the pendulum beam.

FIG. 6 is a schematic cross-sectional structural diagram of the second moving base and the second supporting base.

FIG. 7 is a schematic three-dimensional structure diagram of the second support base.

FIG. 8 is a schematic diagram of the three-dimensional structure of the grinding host.

FIG. 9 is a schematic cross-sectional structural diagram of a grinding host.

FIG. 10 is a schematic cross-sectional structural diagram of the grinding host from another angle.

FIG. 11 is an enlarged schematic view of the structure at A in FIG. 10 .

FIG. 12 is a schematic three-dimensional structure diagram of a grinding head.

FIG. 13 is a schematic cross-sectional view of the grinding head.

FIG. 14 is a schematic cross-sectional view of the grinding head at another angle.

FIG. 15 is an enlarged schematic view of the structure at B in FIG. 14 .

FIG. 16 is a schematic three-dimensional structure diagram of the swing seat.

FIG. 17 is a schematic diagram of the matching structure of the swing seat and the track block.

FIG. 18 is a schematic three-dimensional structural diagram of the first outer teeth and the inner gear ring.

In the picture:

base 1; conveyor belt 11; first support seat 12; second support seat 13;

Swing beam 2; main beam 21; second mounting surface 211; second support slot 212; first moving seat 22; second moving seat 23;

base body 3; support frame 31; first mounting surface 311; first support slot 312; locking mounting hole 313; limit mounting hole 314; center cylinder 32; motor mounting seat 33;

Main shaft 4; Outer shaft barrel 41; Spline sleeve 42; Drive key 43; Inner shaft 44;

grinding head 5; central shaft 51; housing 52; differential mechanism 53; first external gear 531; second external gear 532; inner gear 533; bearing support 54; needle roller bearing without inner ring 541; ; Track block 56; Swing seat 57; Drive swing rod 571; Roller 572;

drive motor 6;

traveling mechanism 7; drive shaft 71; drive gear 72; traveling motor 73; gear row 74;

The driving seat 81 ; the lifting oil cylinder 82 ; the oil cylinder mounting seat 83 ; the limit rod 84 ; the fixing plate 85 ;

具体实施方式detailed description

In order to further explain the technical solutions of the present invention, the present invention will be described in detail below through specific embodiments.

As shown in Figures 1 to 18, it is a grinding and polishing device involved in the present invention, comprising a base 1, a conveyor belt 11, a swing beam 2, and at least one grinding host installed on the swing beam 2; The belt 11 is installed on the base 1, and a first support base 12 and a second support base 13 are arranged above the base 1; The first moving seat 22 and the second moving seat 23 are respectively placed on the first supporting seat 12 and the second supporting seat 13, and the pendulum beam 2 is also provided with a The traveling mechanism 7 that drives the pendulum beam 2 to swing back and forth on the first support base 12 and the second support base 13; the traveling mechanism 7 includes a drive shaft 71, two drive gears 72, a travel motor 73 and two Tooth row 74, the drive shaft 71 is arranged along the length direction of the main beam 21 and protrudes out of the first moving seat 22 and the second moving seat 23, and the drive gear 72 is respectively connected to the At the end of the drive shaft 71, the traveling motor 73 is fixedly arranged on the main beam 21 and drives the drive shaft 71 to rotate, and the two tooth rows 74 are respectively fixed to install the first support seat 12 and the second support seat 12. The support base 13 is engaged with the drive gear 72 .

In this way, in a grinding and polishing device according to the present invention, the plate is transported by the conveyor belt 11 , and the grinding host grinds the plate on the conveyor belt 11 through the grinding head 5 . The pendulum beam 2 swings along the width direction of the conveyor belt 11 , so that the grinding host can uniformly grind the plate. The drive shaft 71 drives the two gears at the same time, and the rotational speeds of the two ends of the drive shaft 71 are consistent, which ensures the synchronism of the swing of the pendulum beam 2 .

Preferably, the grinding host includes a base body 3 , a main shaft 4 , a grinding head 5 and a drive motor 6 ; the base body 3 is installed on the main beam 21 , and the main shaft 4 is rotatably installed on the base body 3 , the drive motor 6 is fixedly installed on the base body 3 to drive the main shaft 4 to rotate, and the grinding head 5 is installed at the lower end of the main shaft 4 . The drive motor 6 drives the main shaft 4 to rotate, and the grinding head 5 installed at the lower end of the main shaft 4 rotates with the rotation of the main shaft 4 .

Preferably, the seat body 3 is machined after casting; the seat body 3 of the grinding host is integrally formed by casting, which improves the overall stability compared with the traditional method of making the seat body 3 by welding and splicing steel plates. sex. The base body 3 includes a supporting frame 31, a central cylinder 32 and a motor mounting seat 33 that are integrally connected, the central cylinder 32 is formed in the middle of the supporting frame 31, and the main shaft 4 is rotatably connected in the central cylinder 32; The motor mounting seat 33 is connected to the upper end of the support frame 31 and cantilevered outside the support frame 31; a first mounting surface 311 is formed on the outer side wall of the support frame 31 under the motor mounting seat 33, and the first mounting surface 311 is formed. A first support slot 312 is formed on the upper end of a mounting surface 311 ; a second mounting surface 211 which is attached to the first mounting surface 311 is provided on the outer side wall of the pendulum beam 2 . The upper end of the mounting surface 211 is provided with a second support slot 212, and the first support slot 312 overlaps the second support slot 212 from top to bottom;

The motor mount 33 and the drive motor 6 are located above the swing beam 2 . The motor mounting seat 33 is outside the support frame 31, and a mounting surface and a supporting slot are formed on the outer side wall of the support frame 31 below the motor mounting seat 33, so that the seat body 3 is fitted through the mounting The surface is fixedly installed on the side of the swing beam 2, and the motor mounting seat 33 is located above the swing beam 2; thus avoiding drilling holes on the swing beam 2 for installing the main shaft 4, and the weight of the drive motor 6 and the main shaft 4 is in the swing beam 2. The distribution on the beam 2 is more balanced, making the grinding machine more stable on the pendulum beam 2.

Preferably, the main shaft 4 includes an outer shaft barrel 41 and an inner shaft 44 , the outer shaft barrel 41 is rotatably connected with the central barrel 32 , and a spline sleeve 42 is arranged in the outer shaft barrel 41 . An inner spline is formed on the inner wall of the key sleeve 42 , an outer spline is provided on the outside of the inner shaft 44 , and the inner shaft 44 is connected with the spline sleeve 42 through the spline to be able to follow the outer shaft barrel 41 . The upper end of the outer shaft barrel 41 is connected with a driven wheel, and the driven wheel is connected with the driving wheel on the output shaft of the drive motor 6 through a transmission component. By arranging the main shaft 4 with an outer shaft barrel 41 and an inner shaft 44, the outer shaft barrel 41 is rotatably connected with the base body 3 and a driven wheel is connected to the outer shaft body, and the drive motor 6 drives the driven wheel through the transmission component rotate, and then drive the outer shaft body to rotate. The outer shaft body is provided with a spline sleeve 42, which can not only drive the inner shaft 44 to rotate, but also enable the inner shaft 44 to slide up and down relative to the outer shaft body. The outer shaft barrel is provided with a through-through installation groove, and a drive key 43 is installed in the installation through groove. Wheel connection.

Preferably, both the first mounting surface 311 and the second mounting surface 211 are formed with locking mounting holes 313 , and the locking mounting holes 313 are provided with first mounting stickers for attaching the grinding host. The joint surface 311 and the second installation joint surface 211 lock the fitted fasteners tightly. By arranging the locking member, the connection between the first mounting surface 311 and the second mounting surface 211 is more secure, so that the support frame 31 can be stably mounted on the main beam 21 .

Preferably, the grinding head 5 includes a central shaft 51, a casing 52, a differential mechanism 53, a track block 56 and a plurality of swing seats 57; the casing 52 is provided with a central shaft 51, and the casing 52 is connected to the center The shaft 51 rotates at a constant speed; the track block 56 is arranged in the outer casing 52 and is rotatably connected to the central shaft 51 , and a plurality of the swinging seats 57 are rotatably connected to the outer casing 52 , and the swinging seats 57 A grinding block mounting seat is formed on the outer side of the outer casing 52 ; the track block 56 is coaxially connected to the central shaft 51 ; the track block 56 is provided with a sliding rail, and the swing seat 57 is inside the outer shell 52 A drive swing rod 571 is provided at one end of the drive swing rod 571 , and the free end of the drive swing rod 571 is provided with a roller 572 that can be connected to the sliding rail in a rolling manner; The differential mechanism 53 drives the track block 56 and the central shaft 51 to form differential motion; the swing shaft of the swing seat 57 is perpendicular to the central shaft 51 . The housing 52 rotates with the rotation of the central shaft 51, and drives the swing seat 57 connected to the housing 52 to rotate around the central shaft 51, so that the grinding block mounted on the grinding block mounting seat is rotated. Grinding stone or other materials at high speed. At the same time, due to the action of the differential mechanism 53, the rotational speeds of the track block 56 and the housing 52 are inconsistent, resulting in a speed difference, so that when the housing 52 rotates around the central axis 51, the swinging The seat 57 swings around the axis of the swing seat 57 under the driving of the slide rail on the track block 56 , thereby improving the grinding effect.

Preferably, the differential mechanism 53 includes a first external gear 531, a second external gear 532 and an internal gear 533; the first external gear 531 is connected with the central shaft 51 by splines, and the second external gear 531 is connected to the central shaft 51 by splines. The gear 532 is fixedly connected to the track block 56 and is coaxially arranged with the central shaft 51; the gear 532 is eccentrically arranged with the central shaft 51 through an external gear ring and meshes with the first external gear 531 and the second external gear 532 at the same time Connection; the first external gear 531 and the second external gear 532 have different numbers of teeth. Through the mutual cooperation of the first external gear 531 , the second external gear 532 and the ring gear 533 , there is a difference in the rotational speed between the second external gear and the second external gear 532 , so that the track block 56 has a The rotational speed relative to the housing 52 is much smaller than the rotational speed relative to the housing 52 . Further, the number of teeth of the first external gear 531 and the second external gear 532 differ by one tooth.

Preferably, the upper part of the inner shaft 44 is connected with a lifting device for driving the inner shaft 44 to rise and fall; the lifting device includes a driving seat 81 , a lifting cylinder 82 and a cylinder mounting seat 83 ; the driving seat 81 is connected to the inner shaft 44 . The shaft 44 is rotatably connected, the oil cylinder mounting seat 83 is arranged on the seat body 3 , the lifting oil cylinder 82 is fixedly connected with the oil cylinder mounting seat 83 , and the lower end of the piston rod of the lifting oil cylinder 82 is connected to the driving seat 81 Fixed connection.

As the lift cylinder 82 rises or falls, the drive base 81 is driven to rise or fall, thereby realizing the adjustment of the height position of the inner shaft 44 . When grinding the stone, the lifting cylinder 82 descends, and the grinding head 5 on the inner shaft 44 descends to grind the plate. When the grinding is completed, the lifting cylinder 82 drives the inner shaft 44 to rise, thereby separating the grinding head 5 from the plate.

Preferably, a bearing support 54 is provided on the outer side of the inner gear ring 533 , and a needle roller bearing without an inner ring 541 is arranged between the inner gear ring 533 and the bearing support 54 ; the bearing support 54 is connected to the There is an upper fixing seat 55, the upper fixing seat 55 is rotatably connected with the central shaft 51, and the upper fixing seat 55 is connected with a fixing mechanism so that the upper fixing seat 55 does not rotate with the central shaft 51; The fixing mechanism includes a limit rod 84 connected to the seat body 3, and the lower end of the limit rod 84 is locked or pressed against the upper surface of the upper fixed seat 55; the lower end of the seat body 3 is provided with limit installation holes. 314; a limit fixing plate 85 is installed at the lower end of the seat body 3, and the fixing plate 85 is fixedly connected with the limit mounting hole 314 through a fixing piece; the fixing plate 85 is formed with a limit through hole 86 that penetrates up and down ; The limiting rod 84 can slide up and down on the seat body 3 with the lifting and lowering of the grinding head 5 . In this way, when the grinding head 5 moves up and down, the limiting rods 84 can limit and fix the upper fixing seat 55 , so that the swing seat 57 on the grinding head 5 swings relative to the housing 52 .

Compared with the prior art, in the present invention, the driving gears 72 arranged on both sides of the driving shaft 71 are arranged to mesh with the tooth row 74 , thus ensuring the stability of the swing beam 2 when it swings laterally.

The above-mentioned embodiments and drawings do not limit the product form and style of the present invention, and any appropriate changes or modifications made by those of ordinary skill in the art should be regarded as not departing from the scope of the present invention.

Claims

A grinding and polishing device is characterized in that it includes a base, a conveyor belt, a swing beam, and at least one grinding host installed on the swing beam; the conveyor belt is installed on the base, and a first wheel is arranged above the base. a support seat and a second support seat; the pendulum beam includes a main beam and a first moving seat and a second moving seat arranged at both ends of the main beam; the first moving seat and the second moving seat are respectively placed on the On the first support base and the second support base, the pendulum beam is also provided with a traveling mechanism for driving the pendulum beam to swing back and forth on the first support base and the second support base;

The traveling mechanism includes a drive shaft, two drive gears, a traveling motor and two tooth rows, and the drive shaft is arranged along the length direction of the main beam and protrudes from the first moving seat and the second moving seat In addition, the drive gears are respectively connected to the ends of the drive shaft, the traveling motor is fixedly arranged on the main beam and drives the drive shaft to rotate, and the two gear rows are respectively fixed to install the first A support base and a second support base are meshed and connected with the drive gear.
The grinding and polishing device according to claim 1, wherein the grinding host comprises a seat body, a main shaft, a grinding head and a driving motor; the seat body is mounted on the main beam, and the main shaft is rotatably installed On the seat body, the driving motor is fixedly mounted on the seat body to drive the spindle to rotate, and the grinding head is mounted on the lower end of the spindle.
The grinding and polishing device according to claim 2, wherein the base body is machined after casting; the base body comprises a supporting frame, a center cylinder and a motor mounting seat which are integrally connected, and the center The cylinder is formed in the middle of the support frame, and the main shaft is rotatably connected in the center cylinder; the motor mount is connected to the upper end of the support frame and overhangs outside the support frame; the support frame below the motor mount A first mounting and fitting surface is formed on the outer side wall, and a first support slot is formed on the upper end of the first mounting and fitting surface; Two mounting surfaces, the upper end of the second mounting surface is provided with a second support slot, the first support slot overlaps the second support slot from top to bottom; the motor is installed The seat and the drive motor are located above the swing beam.
The grinding and polishing device according to claim 3, wherein the main shaft comprises an outer shaft barrel and an inner shaft, the outer shaft barrel is rotatably connected with the central barrel, and a flower is arranged in the outer shaft barrel. a splined sleeve, an inner spline is formed on the inner wall of the splined sleeve, an outer spline is arranged on the outside of the inner shaft, and the inner shaft is connected with the splined sleeve through a spline and can follow the outer spline The axial sliding of the shaft barrel; the upper end of the outer shaft barrel is connected with a driven wheel, and the driven wheel is connected with the driving wheel on the output shaft of the driving motor through a transmission component.
The grinding and polishing device according to claim 4, wherein a lifting device for driving the inner shaft to rise and fall is connected to the upper part of the inner shaft; the lifting device comprises a driving seat, a lifting oil cylinder and an oil cylinder mounting seat; The driving seat is rotatably connected to the inner shaft, the oil cylinder mounting seat is arranged on the seat body, the lifting oil cylinder is fixedly connected to the oil cylinder mounting seat, and the lower end of the piston rod of the lifting oil cylinder is connected to the driving Seat fixed connection.
The grinding and polishing device according to claim 3, characterized in that, locking mounting holes are formed on the first mounting surface and the second mounting surface, and the locking mounting holes pass through them. There are fasteners for locking the first mounting surface and the second mounting surface of the grinding host tightly together.
The grinding and polishing device according to claim 3, wherein the grinding head comprises a central shaft, a casing, a differential mechanism, a track block and several swing seats; the casing is provided with a central shaft, and the The outer shell rotates at the same speed with the central shaft; the track block is arranged in the outer shell and is rotatably connected to the central shaft, a plurality of the swing seats are rotatably connected to the outer shell, and the swing seats are formed A grinding block mounting seat located on the outer side of the shell; the track block is coaxially rotatably connected with the central axis; a slide rail is provided on the track block, and a drive swing rod is provided at one end of the swing seat in the shell, The free end of the driving pendulum rod is provided with a roller that can be rolled in the sliding rail; a differential mechanism is connected between the track block and the central shaft, and the differential mechanism drives the track block and the center shaft. The central axis forms differential motion; the swing axis of the swing seat is perpendicular to the central axis.
The grinding and polishing device according to claim 7, wherein the differential mechanism comprises a first external gear, a second external gear and an internal ring gear; the first external gear is connected to the center through a spline shaft connection, the second external gear is fixedly connected with the track block and coaxially arranged with the central shaft; the external gear ring is eccentrically arranged with the central shaft and simultaneously with the first external gear and the second external gear The gears are meshed and connected; the number of teeth of the first external gear and the second external gear is different.
The grinding and polishing device according to claim 8, wherein the number of teeth of the first external gear and the second external gear differ by one tooth.
The grinding and polishing device according to claim 8, wherein a bearing support is arranged on the outer side of the inner gear ring, and a needle roller bearing without an inner ring is arranged between the inner gear ring and the bearing support The bearing support is connected with an upper fixing seat, the upper fixing seat is rotatably connected with the central shaft, and the upper fixing seat is connected with a fixing mechanism so that the upper fixing seat does not rotate with the central shaft ; the fixing mechanism includes a limit rod connected to the seat body, the lower end of the limit rod is locked or pressed against the upper surface of the upper fixed seat; the lower end of the seat body is provided with a limit installation hole; the A limit fixing plate is installed at the lower end of the base body, and the fixing plate is fixedly connected with the limit installation hole through a fixing piece; a limit through hole that penetrates up and down is formed on the fixing plate; The head rises and falls and slides up and down on the seat body.