CN210060620U

CN210060620U - Automatic stone polishing machine

Info

Publication number: CN210060620U
Application number: CN201920571228.4U
Authority: CN
Inventors: 王修红
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-02-14
Anticipated expiration: 2029-04-25

Abstract

The utility model discloses an automatic burnishing machine of stone material, including the lathe that has the numerical control case, install the gyration respectively on the lathe and hold the mechanism, translation stop gear, polishing mechanism and lift actuating mechanism, treat that the stone material work piece of polishing is placed on the gyration holds in the palm and holds the mechanism, hold in the palm by this gyration and drive the synchronous gyration of work piece, translation stop gear installs in the gyration and holds the below of holding the mechanism, and hold in the palm the mechanism with the gyration and cooperate and be formed with a plurality of processing stations, polishing mechanism installs in the top that the mechanism was held in the gyration, and be connected with lift actuating mechanism, can adjust the high whole of a plurality of aircraft noses of polishing through lift actuating mechanism, the gyration is held in the palm the mechanism, translation stop gear, polishing mechanism and lift actuating mechanism's motion is controlled by the numerical control case. The utility model has the advantages of degree of automation is high, work efficiency is high, the security performance is high, low in labor strength, be applicable to industrial batch production etc.

Description

Automatic stone polishing machine

Technical Field

The utility model belongs to the technical field of the technique of stone material processing and specifically relates to indicate an automatic burnishing machine of stone material.

Background

The stone is a widely used decorative material, and new changes in beauty are continuously generated along with the improvement of living standard of people, and the requirements on the appearance of the stone are improved. Most of the existing stone polishing machines are used for polishing the peripheral surface from thick to thin by adding two ends of a stone material, driving a workpiece to rotate by a motor and then polishing the peripheral surface by manually holding a water mill or manually-operated abrasive paper, so that the peripheral surface has glossy and bright brightness.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide an automatic burnishing machine of stone material that degree of automation is high, work efficiency is high, the security performance is high, low in labor strength, stable in quality are applicable to industrial batch production.

In order to achieve the above object, the present invention provides a technical solution: an automatic stone polishing machine comprises a machine tool with a numerical control box, wherein a rotary supporting mechanism, a translation limiting mechanism, a polishing mechanism and a lifting driving mechanism are respectively arranged on the machine tool, stone raw material workpieces to be polished are placed on the rotary supporting mechanism, the rotary supporting mechanism drives the workpieces to synchronously rotate, the translation limiting mechanism is arranged below the rotary supporting mechanism and is matched with the rotary supporting mechanism to form a plurality of processing stations, the workpieces are placed in the processing stations, the corresponding processing stations limit the workpieces, the translation limiting mechanism translates the workpieces completing the processing station procedures to the next processing station, the polishing mechanism is arranged above the rotary supporting mechanism and is connected with the lifting driving mechanism, the polishing mechanism comprises a row of polishing heads, the number of the polishing heads is consistent with the number of the processing stations, the polishing precision of a plurality of polishing heads is sequentially increased from low to high, the workpieces moved to the lower part of the polishing heads by the translation limiting mechanism are sequentially polished and polished by the plurality of polishing heads in an automatic manner from thick to thin, the heights of the plurality of polishing heads can be integrally adjusted by the lifting driving mechanism, so that the distance between the polishing heads and the rotation supporting mechanism is adaptive to the diameter of the workpieces, and the movement of the rotation supporting mechanism, the translation limiting mechanism, the polishing mechanism and the lifting driving mechanism is controlled by the numerical control box.

Further, the rotary supporting mechanism comprises two rolling shafts, two movable supporting components, a handle adjusting component, a chain wheel and chain component and a first motor, the two rolling shafts are arranged on the machine tool side by side through the two groups of movable supporting components at two ends, the workpiece is placed in a processing station between the two rolling shafts, the two rolling shafts are located below the polisher head, the polisher head is guaranteed to be aligned with the workpiece in the corresponding processing station, the movable supporting components adjust the distance between the two rolling shafts through the handle adjusting component to adapt to the diameters of workpieces in different batches, the two rolling shafts are connected with the first motor through the chain wheel and chain component, the two rolling shafts are driven by the first motor to synchronously rotate, the workpieces placed above the two rolling shafts are driven to synchronously rotate, and the outer peripheral surfaces of the workpieces are uniformly polished.

Furthermore, the movable support assembly comprises two movable support seats, two sliding blocks and a bidirectional screw rod, the two movable support seats are respectively connected with the end parts of the same sides of the two rolling shafts through bearings, the two sliding blocks are respectively sleeved on the two sides of the bidirectional screw rod, the tops of the two sliding blocks are respectively fixedly connected with the bottoms of the two movable support seats, the bottoms of the two sliding blocks are slidably mounted on a sliding rail of the machine tool, the bidirectional screw rod is connected with the handle adjusting assembly, and the two sliding blocks can drive the two movable support seats to move oppositely or reversely along the sliding rail by rotating a handle of the handle adjusting assembly, so that the distance between the two rolling shafts is adjusted; the handle adjusting assembly is arranged on the machine tool and positioned behind the two rolling shafts, and comprises two first connecting rods, two second connecting rods and a handle, the two first connecting rods are respectively connected with the two-way screw rods, the lengths of the two second connecting rods and the two rolling shafts are consistent and parallel to the two rolling shafts, the two ends of the two second connecting rods are respectively and vertically connected with the two first connecting rods through conical gears, and one end of each second connecting rod extends outwards and is provided with the handle; sprocket chain subassembly includes two driven little sprockets, the big sprocket of initiative, adjusting sprocket, chain, the tip of two roller bearings is located respectively to two driven little sprockets, adjusting sprocket passes through the bearing and installs on the lathe and lie in the below of two driven little sprockets, the big sprocket of initiative is connected with first motor and lies in adjusting sprocket's below, and two driven little sprockets, adjusting sprocket and the big sprocket of initiative pass through chain drive and connect, by the big sprocket of first motor drive initiative, realize the synchronous gyration of two roller bearings, and wherein, two driven little sprockets and the big sprocket of initiative mesh with the medial surface of chain mutually, and adjusting sprocket meshes with the lateral surface of chain mutually to realize that the chain of regular length can adapt to the interval fine setting of two roller bearings.

Further, polishing mechanism includes polisher head, aircraft nose mounting panel and second motor, polisher head has a plurality ofly and installs on the aircraft nose mounting panel, aircraft nose mounting panel and lift actuating mechanism fixed connection, these a plurality of polisher heads pass through two liang of belts to be connected, by the synchronous rotation of a plurality of polisher heads of second motor drive, through the regulation of the overhead independent pneumatic part realization every polisher head polishing precision of a plurality of polisher.

Further, the machine tool is also provided with a reciprocating driving mechanism for ensuring that each polishing machine head of the polishing mechanism performs left-right reciprocating motion on the corresponding processing station, the reciprocating driving mechanism comprises a reciprocating driving motor and a rack, and the rack is fixedly connected with a machine head mounting plate of the polishing mechanism and meshed with a gear on an output shaft of the reciprocating driving motor.

Furthermore, a water outlet hose is arranged beside each polishing head of the polishing mechanism and used for preventing dust pollution generated during polishing and cooling the workpiece.

Further, the translation limiting mechanism comprises a longitudinal driving upright post, a transverse driving cylinder, a transverse guide rail, a transverse rod and a limiting rod, two longitudinal driving upright columns are arranged on the machine tool, the transverse guide rail is transversely arranged on the two longitudinal driving upright columns, the transverse rod is arranged on the transverse guide rail in a sliding manner, the cross bar is provided with a plurality of limiting rods, a processing station is formed between every two limiting rods and is used for limiting and blocking a workpiece placed between two rolling shafts of the rotary supporting and holding mechanism, a grinding machine head is ensured to be aligned with the workpiece in one processing station for grinding and polishing, and during operation, the transverse translation control of the cross bar is realized through a transverse driving air cylinder, the workpiece which is about to complete the working station procedure is translated to the next working station, and then the lifting control of the cross rod is realized through the longitudinal driving upright post, so that the resetting of the translation limiting mechanism is completed.

Further, the lifting driving mechanism comprises a lifting driving motor, two lead screws, a transmission shaft and lifting slide block sliding plate components, wherein the two lead screws are arranged on two upright posts of the machine tool in parallel and symmetrically, the two lead screws are respectively and vertically connected with two ends of the transmission shaft, the transmission shaft is connected with the lifting driving motor, the transmission shaft is driven by the lifting driving motor so as to drive the two lead screws to synchronously rotate, a lifting slide block sliding plate component is sleeved on each lead screw in a sliding way, the two lifting slide block sliding plate components can respectively slide along guide rails of the two upright posts arranged on the machine tool, the two lifting slide block sliding plate components are respectively connected to two ends of a machine head mounting plate of the polishing mechanism, the polishing mechanism is driven by the lifting slide block sliding plate components to integrally move upwards or downwards along the guide rails, so that the distance between the polishing mechanism and the rotary supporting, the lifting slide block sliding plate assembly is formed by fixedly connecting a lifting slide block and a lifting slide plate, the lifting slide block is sleeved on the screw rod, and the lifting slide plate is slidably mounted on the guide rail.

Further, be equipped with the polylith baffle that is used for preventing dust pollution and goes out the splash of water hose and spatters outward on the lathe, wherein the movable baffle that the baffle that faces the operation personnel is through hinge mount and can upwards overturn.

Further, a power supply box for supplying power is mounted on the machine tool.

Compared with the prior art, the utility model, have following advantage and beneficial effect:

the polishing machine of the utility model can automatically polish the outer peripheral surface of the stone, the number of the grinding heads is set according to the requirement of polishing precision, and the polishing requirement of coarse grinding or fine grinding is controlled by independently adjusting the weight ground by each grinding head; the stone material lifting device can adapt to stone materials with different diameters through the lifting driving mechanism and the rotary supporting mechanism with adjustable intervals; the workpiece can be automatically shifted to a processing station through the translation limiting mechanism, and the workpiece can be automatically polished from rough to fine.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a first perspective view of the present invention without a baffle.

Fig. 3 is a second perspective view of the present invention without installing a baffle.

Fig. 4 is a schematic structural diagram of the reciprocating driving mechanism of the present invention.

Fig. 5 is a schematic structural view of the translation limiting mechanism of the present invention.

Fig. 6 is a schematic structural diagram of the lifting driving mechanism of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

As shown in fig. 1 to 6, the automatic stone polishing machine provided in this embodiment includes a machine tool 1 having a numerical control box 5, the machine tool 1 is provided with a rotary supporting mechanism, a translational limiting mechanism, a polishing mechanism and a lifting driving mechanism, a stone material workpiece to be polished (in this embodiment, a cylindrical stone material workpiece is taken as an example) is placed on the rotary supporting mechanism, the rotary supporting mechanism drives the workpiece to synchronously rotate, the translational limiting mechanism is installed below the rotary supporting mechanism and is matched with the rotary supporting mechanism to form a plurality of processing stations, the workpiece is placed in the processing stations, the workpiece completing the processing station procedure is limited by the corresponding processing station, the translational limiting mechanism translates the workpiece completing the processing station procedure to the next processing station, the polishing mechanism is installed above the rotary supporting mechanism and is connected with the lifting driving mechanism, the polishing machine comprises a row of polishing machine heads 21, wherein the number of the polishing machine heads 21 is consistent with that of processing stations, namely, one polishing machine head 21 corresponds to one processing station, a distance is kept between every two polishing machine heads 21, the polishing precision of the multiple polishing machine heads 21 is sequentially increased from low to high, so that the multiple polishing machine heads 21 sequentially polish and polish workpieces moved to the lower side of the multiple polishing machine heads from thick to thin in an automatic and orderly manner, the lifting driving mechanism is used for lifting and adjusting the height of the polishing machine heads, the distance between the polishing machine heads and the rotary supporting mechanism is adaptive to the diameter of the workpieces, the motions of the rotary supporting mechanism, the translation limiting mechanism, the polishing mechanism and the lifting driving mechanism are controlled by a numerical control box, and meanwhile, a power supply box (not shown) arranged on a machine tool 1 provides power.

The rotary supporting mechanism comprises rolling shafts 14, movable supporting components, a handle adjusting component, a chain wheel chain component and a first motor 15, wherein the rolling shafts 14 are arranged on the machine tool 1 in a parallel and transverse mode through two groups of movable supporting components at two ends, a workpiece is placed in a processing station between the two rolling shafts 14, the two rolling shafts 14 are located below the polisher head 21, the polisher head 21 is guaranteed to be aligned with the workpiece in the corresponding processing station, the movable supporting components adjust the distance between the two rolling shafts 14 through the handle adjusting component to adapt to the diameters of workpieces in different batches, the two rolling shafts 14 are connected with the first motor 15 through the chain wheel chain component, the two rolling shafts 14 are driven by the first motor 15 to synchronously rotate, the workpieces placed above the two rolling shafts 14 are driven to synchronously rotate, and the outer peripheral surfaces of the workpieces are evenly polished; the movable supporting assembly comprises two movable supporting seats 111, two sliding blocks 112 and a bidirectional screw rod 113, the two movable supporting seats 111 are respectively connected with the end parts of the two rolling shafts 14 on the same side through bearings, the two sliding blocks 112 are respectively sleeved on the two sides of the bidirectional screw rod 113, the tops of the two sliding blocks 112 are respectively fixedly connected with the bottoms of the two movable supporting seats 111, the bottoms of the two sliding blocks are slidably mounted on a 114 sliding rail of the machine tool 1, the bidirectional screw rod 113 is connected with a handle adjusting assembly, and a handle 123 of the handle adjusting assembly is rotated to enable the two sliding blocks 112 to drive the two movable supporting seats 111 to move oppositely or reversely along the 114 sliding rail, so that the distance between the two rolling shafts 14 is adjusted; the handle adjusting assembly is mounted on the machine tool 1 and located behind the two rollers 14, and comprises two first connecting rods 121, two second connecting rods 122 and a handle 123, the two first connecting rods 121 are respectively connected with the two-way screw rods 113, the lengths of the second connecting rods 122 and the two rollers 14 are the same and parallel to the two rollers 14, two ends of the second connecting rods 122 are respectively and vertically connected with the two first connecting rods 121 through conical gears 124, and one end of the second connecting rod 122 extends outwards and is provided with the handle 123; the sprocket chain subassembly includes two driven little sprockets 131, the big sprocket 133 of drive, adjusting sprocket 132, chain 134, two driven little sprockets 131 locate two roller bearing 14's tip respectively, adjusting sprocket 132 passes through the bearing and installs on lathe 1 and is located the below of two driven little sprockets 131, the big sprocket 133 of drive is connected with first motor 15 and is located adjusting sprocket 132's below, and two driven little sprockets 131, adjusting sprocket 132 and the big sprocket 133 of drive are connected through chain 134 transmission, by the big sprocket 133 of first motor 15 drive, realize two roller bearing 14's synchronous gyration, wherein, two driven little sprockets 131 and the big sprocket 133 of drive mesh with the medial surface of chain 134 mutually, and adjusting sprocket 132 meshes with the lateral surface of chain 134 mutually to the chain 134 of realizing the fixed length can adapt to the interval fine setting of two roller bearing 14.

Polishing mechanism includes polisher head 21, aircraft nose mounting panel 22 and second motor 23, polisher head 21 has a plurality ofly (this embodiment uses six as an example) and installs on aircraft nose mounting panel 22 for one row, aircraft nose mounting panel 22 and lift actuating mechanism fixed connection, these six polisher head 21 are two liang connected through the belt, rotate in step by six polisher head 21 of second motor 23 drive, realize the regulation of every polisher head 21 polishing precision through independent pneumatic part on six polisher head 21, all be equipped with water outlet hose 24 simultaneously by every polisher head 21 for produced dust pollution and carry out cooling treatment to the work piece when preventing to polish.

As shown in fig. 5, the translation limiting mechanism includes two longitudinal driving columns 31, two transverse driving cylinders 32, two transverse guide rails (not shown in the figure), a cross bar 34 and limiting rods 35, the longitudinal driving columns 31 are installed on the machine tool 1, the transverse guide rails (not shown in the figure) are horizontally arranged on the two longitudinal driving columns 31, the cross bar 34 is slidably arranged on the transverse guide rails (not shown in the figure), a plurality of limiting rods 35 are arranged on the cross bar 34, a processing station is formed between every two limiting rods 35 for limiting and blocking a workpiece placed between two rollers 14 of the rotary supporting mechanism, and it is ensured that one polisher head 21 aligns with one workpiece for polishing, when in operation, the transverse translation control of the cross bar 34 is realized through the transverse driving cylinders 32, that is to say, the workpiece completing the processing station process is translated to the next processing station, and then the vertical driving upright column 31 is used for realizing the lifting control of the transverse rod 34, namely the resetting of the translation limiting mechanism is completed.

The lifting driving mechanism is externally packaged by a compressible shell, the internal structure of the lifting driving mechanism is shown in fig. 6, and the lifting driving mechanism comprises a lifting driving motor 41, a screw rod 42, a transmission shaft 43 and lifting slider sliding plate components, the screw rod 42 is provided with two parallel and symmetrical columns arranged on the machine tool 1, the two screw rods 42 are respectively and vertically connected with two ends of the transmission shaft 43, the transmission shaft 43 is connected with the lifting driving motor 41, the transmission shaft 43 is driven by the lifting driving motor 41 to drive the two screw rods 42 to synchronously rotate, a lifting slider sliding plate component is slidably sleeved on each screw rod 42, the two lifting slider sliding plate components can respectively slide along guide rails 46 arranged on the two columns on the machine tool 1, the two lifting slider sliding plate components are respectively connected to two ends of a machine head mounting plate 22 of the polishing mechanism, and the polishing mechanism is driven by the lifting slider sliding plate components to integrally move upwards or, the distance between the polishing mechanism and the rotary supporting mechanism is adapted to the diameter of a workpiece, wherein the lifting slide block sliding plate assembly is formed by connecting a lifting slide block 44 and a lifting slide plate 45, the lifting slide block 44 is sleeved on the screw rod 42, and the lifting slide plate 45 is slidably mounted on the guide rail 46.

As shown in fig. 4, the machine tool 1 is further provided with a reciprocating driving mechanism for ensuring that each polisher head 21 of the polishing mechanism reciprocates left and right at the corresponding processing station, the reciprocating driving mechanism includes a reciprocating driving motor 61 and a rack 62, and the rack 62 is fixedly connected with the head mounting plate 22 of the polishing mechanism and is meshed with a gear 63 on an output shaft of the reciprocating driving motor 61.

The periphery of the machine tool 1 is also provided with a plurality of baffles 7 for preventing dust pollution and water splash of the water outlet hose from splashing, wherein the baffle facing to an operator is a movable baffle 71 which is arranged through a hinge and can turn upwards, and the operator can put in or take out a workpiece only by opening the movable baffle 71.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an automatic burnishing machine of stone material, includes the lathe that has numerical control case, its characterized in that: the machine tool is respectively provided with a rotary supporting mechanism, a translation limiting mechanism, a polishing mechanism and a lifting driving mechanism, stone raw material workpieces to be polished are placed on the rotary supporting mechanism, the rotary supporting mechanism drives the workpieces to synchronously rotate, the translation limiting mechanism is arranged below the rotary supporting mechanism and is matched with the rotary supporting mechanism to form a plurality of processing stations, the workpieces are placed in the processing stations and are limited by the processing stations, the workpieces completing the processing procedures of the processing stations are translated to the next processing station by the translation limiting mechanism, the polishing mechanism is arranged above the rotary supporting mechanism and is connected with the lifting driving mechanism, the polishing mechanism comprises a row of polishing heads, the number of the polishing heads is consistent with that of the processing stations, namely one polishing head corresponds to one processing station, the polishing precision of the plurality of polishing machine heads is sequentially increased from low to high, the workpieces moved to the lower part of the polishing machine heads by the translation limiting mechanism are sequentially polished and polished automatically from thick to thin by the plurality of polishing machine heads, the heights of the plurality of polishing machine heads can be integrally adjusted by the lifting driving mechanism, so that the distance between the polishing machine heads and the rotation supporting mechanism is adaptive to the diameter of the workpieces, and the movement of the rotation supporting mechanism, the translation limiting mechanism, the polishing mechanism and the lifting driving mechanism is controlled by the numerical control box.

2. The automatic stone polisher of claim 1, wherein: the rotary supporting mechanism comprises two rolling shafts, movable supporting components, a handle adjusting component, a chain wheel and chain component and a first motor, the two rolling shafts are arranged on the machine tool side by side through two groups of movable supporting components at two ends, a workpiece is placed in a processing station between the two rolling shafts, the two rolling shafts are located below the polisher head, the polisher head is guaranteed to be aligned to the workpiece in the corresponding processing station, the movable supporting components adjust the distance between the two rolling shafts through the handle adjusting components to adapt to the diameters of workpieces in different batches, the two rolling shafts are connected with the first motor through the chain wheel and chain component, the two rolling shafts are driven by the first motor to synchronously rotate, the workpieces placed above the two rolling shafts are driven to synchronously rotate, and the outer peripheral surfaces of the workpieces are evenly polished.

3. The automatic stone polisher of claim 2, wherein: the movable support assembly comprises two movable support seats, two sliding blocks and a bidirectional screw rod, the two movable support seats are respectively connected with the end parts of the same sides of the two rolling shafts through bearings, the two sliding blocks are respectively sleeved on the two sides of the bidirectional screw rod, the tops of the two sliding blocks are respectively fixedly connected with the bottoms of the two movable support seats, the bottoms of the two sliding blocks are slidably mounted on a slide rail of a machine tool, the bidirectional screw rod is connected with a handle adjusting assembly, and a handle of the handle adjusting assembly is rotated to enable the two sliding blocks to drive the two movable support seats to move oppositely or reversely along the slide rail, so that the distance between the two rolling shafts is adjusted; the handle adjusting assembly is arranged on the machine tool and positioned behind the two rolling shafts, and comprises two first connecting rods, two second connecting rods and a handle, the two first connecting rods are respectively connected with the two-way screw rods, the lengths of the two second connecting rods and the two rolling shafts are consistent and parallel to the two rolling shafts, the two ends of the two second connecting rods are respectively and vertically connected with the two first connecting rods through conical gears, and one end of each second connecting rod extends outwards and is provided with the handle; sprocket chain subassembly includes two driven little sprockets, the big sprocket of initiative, adjusting sprocket, chain, the tip of two roller bearings is located respectively to two driven little sprockets, adjusting sprocket passes through the bearing and installs on the lathe and lie in the below of two driven little sprockets, the big sprocket of initiative is connected with first motor and lies in adjusting sprocket's below, and two driven little sprockets, adjusting sprocket and the big sprocket of initiative pass through chain drive and connect, by the big sprocket of first motor drive initiative, realize the synchronous gyration of two roller bearings, and wherein, two driven little sprockets and the big sprocket of initiative mesh with the medial surface of chain mutually, and adjusting sprocket meshes with the lateral surface of chain mutually to realize that the chain of regular length can adapt to the interval fine setting of two roller bearings.

4. The automatic stone polisher of claim 1, wherein: polishing mechanism includes polisher head, aircraft nose mounting panel and second motor, the polisher head has a plurality ofly and installs on the aircraft nose mounting panel, aircraft nose mounting panel and lift actuating mechanism fixed connection, these a plurality of polisher heads pass through two liang of belts to be connected, by the synchronous rotation of a plurality of polisher heads of second motor drive, realize every polisher head polishing precision's regulation through the overhead independent pneumatic part of a plurality of polishers.

5. The automatic stone polisher of any one of claims 1 or 4, wherein: the machine tool is also provided with a reciprocating driving mechanism for ensuring that each polishing machine head of the polishing mechanism does left-right reciprocating motion on a corresponding processing station, the reciprocating driving mechanism comprises a reciprocating driving motor and a rack, and the rack is fixedly connected with a machine head mounting plate of the polishing mechanism and meshed with a gear on an output shaft of the reciprocating driving motor.

6. The automatic stone polisher of any one of claims 1 or 4, wherein: and a water outlet hose is arranged beside each polishing head of the polishing mechanism and used for preventing dust pollution generated during polishing and cooling the workpiece.

7. The automatic stone polisher of claim 1, wherein: the translation limiting mechanism comprises longitudinal driving stand columns, transverse driving cylinders, transverse guide rails, transverse rods and limiting rods, the longitudinal driving stand columns are two and are installed on a machine tool, the transverse guide rails are transversely arranged on the two longitudinal driving stand columns, the transverse rods are arranged on the transverse guide rails in a sliding mode, a plurality of limiting rods are arranged on each transverse rod, a machining station is formed between every two limiting rods and used for limiting and blocking workpieces placed between two rolling shafts of the rotary supporting mechanism, a grinding machine head is guaranteed to be aligned to the workpieces in one machining station for grinding and polishing, in operation, the transverse translation control of the transverse rods is achieved through the transverse driving cylinders, the workpieces about to complete the machining station procedure are translated to the next machining station, and then the lifting control of the transverse rods is achieved through the longitudinal driving stand columns, and the translation limiting mechanisms are reset.

8. The automatic stone polisher of claim 1, wherein: the lifting driving mechanism comprises a lifting driving motor, two lead screws, a transmission shaft and lifting slider sliding plate components, the two lead screws are arranged on two upright posts of the machine tool in parallel and symmetrically, the two lead screws are respectively and vertically connected with two ends of the transmission shaft, the transmission shaft is connected with the lifting driving motor, the transmission shaft is driven by the lifting driving motor to drive the two lead screws to synchronously rotate, each lead screw is sleeved with a lifting slider sliding plate component in a sliding way, the two lifting slider sliding plate components can respectively slide along guide rails arranged on the two upright posts on the machine tool, the two lifting slider sliding plate components are respectively connected to two ends of a machine head mounting plate of the polishing mechanism, the polishing mechanism is driven by the lifting slider sliding plate components to integrally move upwards or downwards along the guide rails, so that the distance between the polishing mechanism and the rotary supporting mechanism is adaptive to the diameter of, the lifting slide block sliding plate assembly is formed by fixedly connecting a lifting slide block and a lifting slide plate, the lifting slide block is sleeved on the screw rod, and the lifting slide plate is slidably mounted on the guide rail.

9. The automatic stone polisher of claim 1, wherein: the machine tool is provided with a plurality of baffles for preventing dust pollution and water splash of the water outlet hose from splashing outside, wherein the baffle facing to the operating personnel is a movable baffle which is installed through a hinge and can be turned upwards.

10. The automatic stone polisher of claim 1, wherein: and a power supply box for supplying power is arranged on the machine tool.