阅读说明：本技术 一种模仿人手打磨力度可调的台球打磨机 (Billiard ball polisher capable of simulating hands and adjusting polishing force ) 是由 不公告发明人 于 2021-08-03 设计创作，主要内容包括：本发明公开一种模仿人手打磨力度可调的台球打磨机,包括固定支架,所述固定支架所述固定支架上固定安装有滑轨座,所述滑轨座的顶部固定安装有顶部支架,所述滑轨座内滑动安装有丝杆滑块,所述丝杆滑块内螺纹连接有螺纹杆,所述螺纹杆的顶端通过丝杆轴承座固定安装在顶部支架的顶部,所述磨砂块内部设置有两个传送辊,其中一个传送辊的一端固定安装有传动凸轮,所述磨砂块内部还设置有砂纸更换电机,所述传动凸轮与砂纸更换电机的传动轴连接,两传送辊上紧绷设置有砂纸带,砂纸带为目数不同的砂纸首尾连接,并紧绷在传送辊上,通过砂纸更换电机进行更换不同目数的砂纸。(The invention discloses a billiard grinding machine capable of simulating the grinding force of hands and adjusting the grinding force, which comprises a fixed bracket, the fixed bracket is fixedly provided with a slide rail seat, the top of the slide rail seat is fixedly provided with a top bracket, a screw rod sliding block is arranged in the sliding rail seat in a sliding way, a threaded rod is connected with the screw rod in the screw rod sliding block, the top end of the threaded rod is fixedly arranged at the top of the top bracket through a threaded rod bearing block, two conveying rollers are arranged in the sanding block, one end of one of the conveying rollers is fixedly provided with a transmission cam, a sand paper replacing motor is also arranged in the sanding block, the transmission cam is connected with a transmission shaft of the sand paper replacing motor, sand paper tapes are tightly arranged on the two conveying rollers and are connected end to end with different sand papers of different meshes, and the sand paper tapes are tightly arranged on the conveying rollers and are replaced with different meshes through the sand paper replacing motor.)

1. The utility model provides a billiard ball polisher of imitative manual dynamics of polishing adjustable, its characterized in that, includes fixed bolster (1), fixed mounting has slide rail seat (2) on fixed bolster (1), the top fixed mounting of slide rail seat (2) has the top support, slidable mounting has lead screw slider (3) in slide rail seat (2), lead screw slider (3) female connection has threaded rod (4), the top of threaded rod (4) is through lead screw bearing frame (5) fixed mounting at the top of top support, the top of threaded rod (4) is connected with servo motor (6) transmission through the shaft coupling, the one end fixed mounting of lead screw slider (3) has motor fixed block (7), fixed mounting has polishing motor (8) on motor fixed block (7), polishing motor (8) are through the top fixed connection of shaft coupling and solid ball frame (49), a ball fixing machine (9) is arranged below the ball fixing frame (49).

2. The billiard grinder of claim 1, which simulates a human hand with adjustable grinding strength, it is characterized in that the ball fixing machine (9) comprises a rotating shaft base (10), a first bearing (11) is fixedly arranged at the center of the top of the rotating shaft base (10), a rotating shaft (12) is movably arranged in the bearing I (11), a rotating disc (13) is fixedly arranged at the top of the rotating shaft (12), gear teeth are arranged on the circumference of the bottom of the rotary table (13), the gear teeth are meshed with a gear (14), a rotating rod (15) is fixedly arranged in a central shaft of the gear (14), the rotating rod (15) is movably arranged in a bearing II (16), one end of the rotating rod (15) is fixedly connected with a rotating shaft of the servo motor II (17), the second servo motor (17) is fixedly installed on the motor base (18), and a waterproof cover is arranged on the second servo motor (17).

3. The billiard grinding machine with adjustable grinding force imitating human hands according to claim 2, characterized in that one side of a rotating shaft base (10) is fixedly installed on the second bearing (16), three linear slide rails (19) which are arranged in an equal row and ordered are fixedly installed on the top of the rotating shaft base (10), a linear slide block (20) is installed in the linear slide rails (19) in a sliding manner, an arc-shaped plate (21) is fixedly installed on the top of the linear slide block (20), an elastic cylinder (22) is arranged in the arc-shaped plate (21), a T-shaped groove is formed in the inner side of the arc-shaped plate (21), a protruding block (23) of the elastic cylinder (22) penetrates through the T-shaped groove to be fixedly connected with one end of a grinding block (24), an arc-shaped slide block (25) is arranged at the bottom of one end of the linear slide block (20), and the arc-shaped slide block (25) is installed in a sliding groove of a spiral tooth (26), the spiral teeth (26) are arranged at the top of the rotary table (13), a ball turning device (27) is fixedly mounted at the center of the top of the rotary table (13), a water spray valve (28) is arranged beside the ball turning device (27), a control panel (29) is arranged on one side of the fixed support (1), a servo motor controller is arranged in the control panel (29), and the servo motor controller is electrically connected with the first servo motor (6) and the second servo motor (17).

4. The billiard grinder with the adjustable grinding force imitating the hands of people as claimed in claim 3, wherein the ball overturning device (27) comprises a jacking cylinder (30), both the piston rods at the two ends of the jacking cylinder (30) are fixedly provided with rotating shaft fixing seats (31), a ball overturning motor (32) is arranged between the bottoms of the two rotating shaft fixing seats (31), the rotating shaft of the ball overturning motor (32) penetrates through the rotating shaft fixing seats (31) at one end and is fixedly provided with a first cam (33) in the rotating shaft, a ball overturning cam (34) is movably arranged between the tops of the two rotating shaft fixing seats (31), one end of the ball overturning cam (34) is fixedly connected with a second cam (35) through a connecting rod, and the first cam (33) is in transmission connection with the second cam (35) through a conveying belt (36).

5. A billiard grinding machine with adjustable grinding force imitating human hands according to claim 4, characterized in that a spherical chute (37) is arranged on the outer side of one of the arc-shaped plates (21), a ball serving frame (38) is fixedly mounted on the top of the other end of the spherical chute (37), a ball serving cylinder (39) is fixedly mounted in the ball serving frame (38), a ball stopper (40) is fixedly mounted on a piston rod of the ball serving cylinder (39), a stopper groove (41) matched with the ball stopper (40) is arranged on the inner side of the ball serving frame (38), and a trigger switch (42) is fixedly mounted above the stopper groove (41).

6. A billiard grinding machine with adjustable grinding strength simulating human hands according to claim 5, characterized in that an elastic rod (43) is fixedly installed inside the ball fixing frame (49), and a ball fixing shaft (44) is fixed to the bottom of the elastic rod (43).

7. A billiard grinding machine with adjustable grinding force imitating human hands as claimed in claim 6, wherein two conveying rollers (45) are arranged inside the grinding block (24), a transmission cam (46) is fixedly arranged at one end of one conveying roller (45), a sand paper replacing motor (47) is further arranged inside the grinding block (24), the transmission cam (46) is connected with a transmission shaft of the sand paper replacing motor (47), and a sand paper belt (48) is tightly arranged on the two conveying rollers (45).

Technical Field

The invention relates to the field of billiard ball manufacturing, in particular to a billiard ball grinding machine capable of simulating hands and adjusting grinding force.

Background

Billiards is one of the ball games. A sports event in which a player bags a target ball by hitting a white primary ball on a billiard table with a cue more than 91.4 cm long according to a certain rule.

In the processing process of billiards, the billiards which are formed for the first time need to be polished to be smoother, the billiards are fixed by a lathe in the existing polishing mode, a turning tool is used for polishing, certain experience needs to be polished, polishing personnel need to concentrate on the attention to polish the billiards in the polishing process, the manual polishing efficiency is low, the working time of operating personnel is too long, mental fatigue is easy to occur, and the qualification rate of products cannot be guaranteed.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The billiard ball polishing machine is low in polishing efficiency and high in polishing skill requirement aiming at the existing billiard ball polishing mode in the related art. To solve the above problems.

The technical scheme of the invention is realized as follows:

a billiard ball grinding machine capable of simulating manual grinding force to be adjustable comprises a fixing support, wherein a slide rail seat is fixedly mounted on the fixing support, a top support is fixedly mounted at the top of the slide rail seat, a lead screw slider is slidably mounted in the slide rail seat, a threaded rod is connected with the inner thread of the lead screw slider, the top end of the threaded rod is fixedly mounted at the top of the top support through a lead screw shaft bearing seat, the top of the threaded rod is in transmission connection with a servo motor through a coupler, a motor fixing block is fixedly mounted at one end of the lead screw slider, a grinding motor is fixedly mounted on the motor fixing block and is fixedly connected with the top of a ball fixing frame through a coupler, a ball fixing machine is arranged below the ball fixing frame and comprises a rotating shaft base, and a first bearing is fixedly mounted at the center of the top of the rotating shaft base, the inner side of the arc-shaped plate is provided with a T-shaped groove, an extending block of the elastic cylinder penetrates through the T-shaped groove and one end of the frosting block is fixedly connected with the inner side of the motor base, the bottom of one end of the linear sliding block is provided with an arc sliding block, the arc sliding block is slidably mounted in a chute of the spiral teeth, the spiral teeth are arranged at the top of the rotary table, a ball turning device is fixedly mounted at the center of the top of the rotary table, a water spray valve is arranged beside the ball turning device, a servo motor controller is arranged in the control panel, the servo motor controller is electrically connected with a servo motor I and a servo motor II, the servo motor I can control the ascending or descending stroke of the ball fixing frame so as to control the pressing of the billiards and the ball fixing machine, the servo motor drives the lead screw to rotate, the lead screw sliding block in threaded connection with the lead screw can move up and down in the slide rail seat, the servo motor II drives the rotary rod to rotate, when the rotary rod rotates, the rotary table in meshing with the gear rotates, when the rotary table rotates, the linear sliding block in meshing with the spiral teeth is pulled inwards or pushed towards the direction, the arc-shaped plate moves inwards or outwards, when the ball fixing frame is pressed downwards, the billiards are attached to the sand grinding block, and the sand grinding block can descend under the action of the elastic rod cylinder;

the billiard overturning device comprises a jacking cylinder, rotary shaft fixing seats are fixedly mounted on piston rods at two ends of the jacking cylinder, a billiard overturning motor is arranged between bottoms of the two rotary shaft fixing seats, a rotary shaft of the billiard overturning motor penetrates through the rotary shaft fixing seat at one end, a first cam is fixedly mounted on the rotary shaft, a billiard overturning cam is movably mounted between tops of the two rotary shaft fixing seats, one end of the billiard overturning cam is fixedly connected with a second cam through a connecting rod, the first cam and the second cam are in transmission connection through a conveyor belt, the billiard overturning device is used for overturning in the vertical direction, when an arc-shaped plate moves outwards to the outermost end, the billiard overturning cam can be attached to the bottom end of a billiard, the billiard overturning motor periodically rotates to vertically rotate through the billiard overturning cam, then the arc-shaped plate moves inwards, the billiard is lifted and separated from the billiard overturning cam, and the top of the billiard is in contact with a billiard fixing frame, and (5) turning and polishing the billiards.

As a further technical scheme, a spherical sliding groove is formed in the outer side of one arc-shaped plate, a service frame is fixedly mounted at the top of the other end of the spherical sliding groove, a service cylinder is fixedly mounted in the service frame, a ball stop block is fixedly mounted on a piston rod of the service cylinder, a stop block groove matched with the ball stop block is formed in the inner side of the service frame, a trigger switch is fixedly mounted above the stop block groove, the service frame is used for storing billiards needing polishing, when the equipment is started, the service cylinder contracts, the ball stop block is opened, the billiards flow into the spherical sliding groove and then slide into the ball fixing machine, when the billiards pass through the stop block groove, the trigger switch is collided, the trigger switch is started to control the service cylinder to extend out, and the service frame is closed.

As a further technical scheme, an elastic rod is fixedly arranged in the ball fixing frame, a ball fixing shaft is fixed at the bottom of the elastic rod and used for fixing the top of the billiard ball, and the grinding motor rotates to drive the billiard ball to rotate in the ball fixing machine.

As a further technical scheme, two conveying rollers are arranged in the sanding block, one end of one conveying roller is fixedly provided with a transmission cam, a sand paper replacing motor is further arranged in the sanding block, the transmission cam is connected with a transmission shaft of the sand paper replacing motor, sand paper belts are tightly arranged on the two conveying rollers, the sand paper belts are connected end to end and tightly arranged on the conveying rollers, and the sand paper with different meshes is replaced through the sand paper replacing motor.

The invention has the beneficial effects that:

1): the elastic cylinder is arranged, so that the billiards tend to rotate in a spherical shape under the action of elasticity in the rotation process, the protruding part of the billiards is firstly contacted with the sanding block under the action of the elasticity, the billiards are sanded from the coarsest position, and the sanding effect is better;

2) according to the invention, the billiards are extruded through the arc-shaped plate, the upward elasticity of the elastic cylinder is increased, the polishing force is larger, the vertical shaking range of the billiards is smaller, the polished error is small until the sand grinding block moves to an extreme value, the billiards are not shaken vertically, the billiards are completely polished, and the polished billiards are standard and smooth.

3) The billiard ball turning machine is provided with the billiard ball turning motor to drive the billiard ball to turn over at regular intervals, meanwhile, the sand paper with different meshes is replaced in the grinding process of the sand paper replacing motor, the billiard ball is ground and polished again step by step, and the grinding precision is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the slide rail seat and its connecting assembly of the present invention;

FIG. 3 is a schematic structural view of a ball fixing machine and a spherical chute according to the present invention;

FIG. 4 is a schematic diagram of a ball fixing machine according to the present invention;

FIG. 5 is a schematic view of the construction of the tee box and its components of the present invention;

FIG. 6 is a schematic structural view of the ball turner of the present invention;

FIG. 7 is a schematic view showing a coupling structure of the sanding block and its coupling assembly according to the present invention;

FIG. 8 is a schematic plan view of the inner assembly of the elastic cylinder according to the present invention;

fig. 9 is a schematic view of the construction of a transfer roll and its attachment assembly of the present invention;

FIG. 10 is a schematic plan view of the ball fixing frame and the connecting members thereof according to the present invention.

Reference numerals:

the device comprises a fixed support 1, a slide rail seat 2, a screw rod sliding block 3, a threaded rod 4, a screw rod bearing seat 5, a first servo motor 6, a motor fixed block 7, a polishing motor 8, a ball fixing machine 9, a rotating shaft base 10, a first bearing 11, a rotating shaft 12, a rotating disc 13, a gear 14, a rotating rod 15, a second bearing 16, a second servo motor 17, a motor base 18, a linear sliding rail 19, a linear sliding block 20, an arc-shaped plate 21, an elastic cylinder 22, an extension block 23, a sanding block 24, an arc-shaped sliding block 25, a spiral tooth 26, a ball turning device 27, a water spraying valve 28, a control panel 29, a jacking cylinder 30, a rotating shaft fixed seat 31, a ball turning motor 32, a first cam 33, a ball turning cam 34, a second cam 35, a conveying belt 36, a spherical sliding groove 37, a ball serving frame 38, a ball serving cylinder 39, a ball blocking block 40, a blocking groove 41, a trigger switch 42, an elastic rod 43, a ball fixing shaft 44, a conveying roller 45, a transmission cam 46, a sand paper replacing motor 47, a grinding machine, Abrasive paper tape 48, ball fixing frame 49.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

According to the embodiment of the invention, a billiard grinding machine capable of simulating the adjustment of the grinding force of a hand is shown in fig. 1 to 10, wherein the billiard grinding machine capable of simulating the adjustment of the grinding force of the hand comprises a fixed support 1, a slide rail seat 2 is fixedly arranged on the fixed support 1, a top support is fixedly arranged on the top of the slide rail seat 2, a screw rod slide block 3 is slidably arranged in the slide rail seat 2, a threaded rod 4 is connected with the screw rod slide block 3 through an internal thread, the top end of the threaded rod 4 is fixedly arranged on the top of the top support through a screw rod bearing seat 5, the top of the threaded rod 4 is in transmission connection with a servo motor I6 through a coupler, a motor fixing block 7 is fixedly arranged at one end of the screw rod slide block 3, a grinding motor 8 is fixedly arranged on the motor fixing block 7, the grinding motor 8 is fixedly connected with the top of a ball fixing frame 49 through a coupler, the below of solid ball frame 49 is provided with solid ball machine 9, solid ball machine 9 includes pivot base 10, the center fixed mounting at pivot base 10 top has bearing one 11, movable mounting has rotation axis 12 in the bearing one 11, the top fixed mounting of rotation axis 12 has carousel 13, the circumference of carousel 13 bottom is provided with the teeth of a cogwheel, and the teeth of a cogwheel meshing has gear 14, fixed mounting has dwang 15 in the center pin of gear 14, the activity of dwang 15 is in bearing two 16, the axis of rotation fixed connection of the one end of dwang 15 and servo motor two 17, servo motor two 17 fixed mounting is on motor base 18, be provided with the buckler on the servo motor two 17, one side of bearing two 16 fixed mounting pivot base 10, the top fixed mounting of pivot base 10 has three linear slide 19 of ranks sequencing such as, a linear sliding block 20 is slidably mounted in the linear sliding rail 19, an arc-shaped plate 21 is fixedly mounted at the top of the linear sliding block 20, an elastic cylinder 22 is arranged inside the arc-shaped plate 21, a T-shaped groove is formed in the inner side of the arc-shaped plate 21, an extending block 23 of the elastic cylinder 22 penetrates through the T-shaped groove and is fixedly connected with one end of a sanding block 24, an arc-shaped sliding block 25 is arranged at the bottom of one end of the linear sliding block 20, the arc-shaped sliding block 25 is slidably mounted in a sliding groove of a spiral tooth 26, the spiral tooth 26 is arranged at the top of the rotary table 13, a ball turning device 27 is fixedly mounted at the center of the top of the rotary table 13, a water spray valve 28 is arranged beside the ball turning device 27, a servo motor controller is arranged in the control panel 29, the servo motor controller is electrically connected with a servo motor I6 and a servo motor II 17, and the servo motor I6 can control the ascending or descending stroke of the ball fixing frame 49 so as to control the pressing of the ball machine and the ball fixing frame 9, the servo motor drives the screw rod to rotate, the screw rod sliding block 3 in threaded connection with the screw rod can move up and down in the slide rail seat 2, the servo motor II 17 drives the rotating rod 15 to rotate, when the rotating rod 15 rotates, the rotating disc 13 meshed with the gear 14 also rotates, when the rotating disc 13 rotates, the linear sliding block 20 meshed with the spiral teeth 26 is pulled inwards or pushed outwards to enable the arc-shaped plate 21 to move inwards or outwards, when the ball fixing frame 49 is pressed downwards, the billiards are attached to the sand grinding block 24, the sand grinding block 24 can descend under the action of the elastic cylinder 22, after the billiards flow into the ball fixing machine 9, the servo motor I6 controls the ball fixing frame 49 to descend, the servo motor II 17 drives the arc-shaped plate 21 to move inwards, the lower half part of the billiards is in frosted contact with the sand grinding block 24, the sand grinding block 24 elastically descends under the action of the elastic cylinder 22, the grinding motor 8 drives the billiards to rotate to enable the billiards to be ground, the billiards can be ground, the servo motor II 17 can control the arc-shaped plate 21 to continue to move inwards, the upward elasticity of the elastic cylinder 22 is increased, and the polishing force is larger;

as an implementation manner of the first embodiment, the ball tilting device 27 includes a jacking cylinder 30, the piston rods at two ends of the jacking cylinder 30 are fixedly provided with a rotating shaft fixing seat 31, a ball tilting motor 32 is arranged between the bottoms of the two rotating shaft fixing seats 31, a rotating shaft of the ball tilting motor 32 penetrates through the rotating shaft fixing seat 31 at one end and is fixedly provided with a first cam 33, a ball tilting cam 34 is movably arranged between the tops of the two rotating shaft fixing seats 31, one end of the ball tilting cam 34 is fixedly connected with a second cam 35 through a connecting rod, the first cam 33 and the second cam 35 are in transmission connection through a conveyor belt 36, the ball tilting device 27 is used for tilting in the vertical direction, when the arc plate 21 moves outwards to the outermost end, the ball tilting cam 34 can be attached to the bottom end of the billiard ball, the ball tilting motor 32 periodically rotates to vertically rotate the billiard ball through the ball tilting cam 34, and then the arc plate 21 moves inwards, the billiards are lifted and separated from the billiards by the billiard-ball-overturning cam 34, and the billiards are ground by contacting the billiards top with the ball-fixing frame 49.

As an implementation manner of the first embodiment, a spherical sliding groove 37 is arranged on the outer side of one of the arc-shaped plates 21, a service frame 38 is fixedly mounted at the top of the other end of the spherical sliding groove 37, a service cylinder 39 is fixedly mounted in the service frame 38, a ball stopper 40 is fixedly mounted on a piston rod of the service cylinder 39, a stopper groove 41 matched with the ball stopper 40 is arranged on the inner side of the service frame 38, a trigger switch 42 is fixedly mounted above the stopper groove 41, the service frame 38 is used for storing billiards needing to be polished, when the device is started, the service cylinder 39 contracts, the ball stopper 40 is opened, the billiards flow into the spherical sliding groove 37 and then slide into the fixing frame 9, when the billiards pass through the stopper groove 41, the trigger switch 42 is collided, the trigger switch 42 starts to control the service cylinder 39 to extend, and the service frame 38 is closed.

In an embodiment of the first embodiment, an elastic rod 43 is fixedly installed inside the ball fixing frame 49, a ball fixing shaft 44 is fixed at the bottom of the elastic rod 43, the ball fixing shaft 44 is used for fixing the top of the billiard ball, and the grinding motor 8 rotates to drive the billiard ball to rotate in the ball fixing machine 9.

As the implementation mode of embodiment one, the inside two transfer rollers 45 that are provided with of sanding block 24, the one end fixed mounting of one of them transfer roller 45 has drive cam 46, sanding block 24 is inside still to be provided with abrasive paper and to change motor 47, drive cam 46 is connected with the transmission shaft that motor 47 was changed to abrasive paper, and two transfer rollers 45 are tightened and are provided with abrasive paper tape 48, and abrasive paper tape 48 is the different abrasive paper end to end connection of mesh to tighten on transfer roller 45, change the abrasive paper of different meshes through abrasive paper change motor 47.

The use process of the invention is as follows: the billiards needing to be polished are placed into the ball serving frame 38, the equipment is started, the ball serving cylinder 39 contracts, the ball stopper 40 opens the billiards to flow into the ball chute 37 and then slides into the ball fixing machine 9, when the billiards pass through the stopper groove 41, the billiards collide with the trigger switch 42, the trigger switch 42 starts to control the ball serving cylinder 39 to extend out, and the interior of the ball serving frame 38 is closed;

when the ball slides into the ball fixing machine 9, the servo motor I6 controls the ball fixing frame 49 to descend, the billiard ball is attached to the sand grinding block 24, the sand grinding block 24 descends under the action of the elastic rod 43 cylinder, after the billiard ball flows into the ball fixing machine 9, the servo motor I6 controls the ball fixing frame 49 to descend, the servo motor II 17 drives the arc-shaped plate 21 to move inwards, the lower half part of the billiard ball is in frosted contact with the sand grinding block 24, the sand grinding block 24 descends elastically under the action of the elastic cylinder 22, the grinding motor 8 drives the billiard ball to rotate, so that the billiard ball is ground, certain downward elastic force is stored in the billiard ball during grinding, the most prominent position on the billiard ball surface is firstly contacted with the sand grinding block 24 due to the effect of the elastic force, the servo motor II 17 can control the arc-shaped plate 21 to move inwards slowly to extrude the billiard ball, the upward elastic force of the elastic cylinder 22 is increased, the grinding force is larger, the shaking range of the billiard ball is smaller, the polished error is small until the sanding block 24 moves to an extreme value, the billiards are not shaken up and down and are completely polished, the polished billiards are standard and smooth, and meanwhile, the water spraying valve 28 sprays water to the sanding block 24 in the polishing process;

after one end of polishing time, the polishing motor 8 stops, the servo motor II 17 controls the arc-shaped plate 21 to move outwards to the outermost end, the ball-turning cam 34 can be attached to the bottom end of the billiards, the ball-turning motor 32 drives the ball-turning cam 34 to rotate, the billiards are rotated in the vertical direction, then the arc-shaped plate 21 moves inwards, the billiards are lifted again to be separated from the billiards by the ball-turning cam 34, the top of the billiards is in contact with the ball-fixing frame 49, and the billiards are polished in a face-turning mode;

after a period of grinding, when the second servo motor 17 controls the arc-shaped plate 21 to move outwards to the outermost end, the ball overturning motor 32 drives the billiard ball to overturn, meanwhile, the sand paper replacing motor 47 drives the conveying roller 45 to replace different mesh number of sand paper, the second servo motor 17 controls the arc-shaped plate 21 to slide to the original position, the billiards are ground and polished again, and the operation is repeated in sequence.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.