CN112720210B

CN112720210B - Efficient stone polishing equipment

Info

Publication number: CN112720210B
Application number: CN202011641887.4A
Authority: CN
Inventors: 林智敏; 洪培英; 丁革新; 华新陆; 黄嘉鸿; 林榕栋
Original assignee: Quanzhou Haiende Electromechanical Technology Development Co ltd
Current assignee: Quanzhou Haiende Electromechanical Technology Development Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2023-05-23
Anticipated expiration: 2040-12-31
Also published as: CN112720210A

Abstract

The invention discloses high-efficiency stone polishing equipment, which comprises a polishing device for polishing stone and a clamping device for clamping stone; the polishing device comprises a plurality of polishing wheels which are arranged at intervals along the arrangement direction of the stone, a first mounting frame for mounting the polishing wheels, and a first sliding driving assembly for driving the polishing wheels to be close to or far from the clamping device; a belt groove extending towards the center of the grinding wheel is formed on the circumferential surface of the grinding wheel, a relief groove extending towards the center of the grinding wheel is formed on the circumferential surface of the belt groove, and the width of the relief groove is smaller than that of the belt groove; the first sliding driving assembly comprises a first guide rail extending towards the clamping device and a first sliding groove which is positioned at the bottom of the first mounting frame and is in sliding fit with the first guide rail. The stone polishing machine solves the problems that in the prior art, stone is polished manually and the efficiency is low.

Description

Efficient stone polishing equipment

Technical Field

The invention relates to the technical field of stone processing equipment, in particular to high-efficiency stone polishing equipment.

Background

Stone is widely used as a high-grade building decoration material for indoor and outdoor decoration design, curtain wall decoration and public facility construction. The stone materials commonly used in the market at present are mainly divided into natural stone and artificial stone. In particular natural stone, requires a series of processes before use, such as: the cutting and polishing, especially polishing, usually adopts manual work to polish the cut stone piece by piece, and the polishing mode is very low in efficiency and needs a large amount of manpower.

In view of this, the present applicant has made intensive studies with respect to the above problems, and has made the present invention.

Disclosure of Invention

The invention mainly aims to provide high-efficiency stone polishing equipment, which solves the problem of low efficiency caused by manually polishing stone in the prior art.

In order to achieve the above object, the solution of the present invention is: the stone polishing device comprises a polishing device for polishing stone and a clamping device for clamping the stone; the polishing device comprises a plurality of polishing wheels which are arranged at intervals along the arrangement direction of the stone, a first mounting frame for mounting the polishing wheels, and a first sliding driving assembly for driving the polishing wheels to be close to or far from the clamping device; a belt groove extending towards the center of the grinding wheel is formed on the circumferential surface of the grinding wheel, a relief groove extending towards the center of the grinding wheel is formed on the circumferential surface of the belt groove, and the width of the relief groove is smaller than that of the belt groove; the first sliding driving assembly comprises a first guide rail extending towards the clamping device and a first sliding groove which is positioned at the bottom of the first mounting frame and is in sliding fit with the first guide rail.

Further, the polishing device further comprises a polishing driving assembly for driving the polishing wheels to rotate simultaneously; the polishing driving assembly comprises a polishing motor, a belt pulley and a transmission belt, wherein the belt pulley coaxially rotates with an output shaft of the polishing motor, and the transmission belt is connected to the belt pulley and the polishing wheel.

Further, the transmission belt is sleeved on the belt pulley and the belt groove.

Further, the first mounting frame comprises a first support for bearing the polishing driving assembly, a second support for bearing the polishing wheel, and a fixing seat for placing the first support and the second support.

Further, the first bracket is provided with supporting posts positioned at two ends of the belt pulley, mounting holes for the belt pulley to rotate are formed in the supporting posts, and rotating shafts matched with the mounting holes are formed at two ends of the belt pulley; the output shaft of the polishing motor is connected to the rotating shaft.

Further, the second bracket is provided with a bearing plate for bearing the grinding wheel and bearing columns fixedly connected to two ends of the bearing plate; the bearing plate is also provided with a plurality of connecting plates connected with the polishing wheels; one end of the connecting plate is fixedly connected to the bearing plate, and the other end of the connecting plate is rotatably connected to the grinding wheel in the abdication groove.

Further, the clamping device comprises an upper clamping mechanism positioned above the stone and a lower clamping mechanism positioned below the stone.

Further, the upper clamping mechanism comprises a plurality of upper clamping plates which are arranged in parallel at intervals, and an upper clamping driving mechanism for driving the plurality of upper clamping plates to be close to each other; the upper clamping groups are formed by the upper clamping plates, and an upper reset spring is further arranged between the adjacent upper clamping plates.

Further, the upper clamping driving mechanism further comprises upper clamping driving assemblies positioned on two sides of the upper clamping group.

Further, the upper clamping driving assembly comprises a first upper clamping driving cylinder positioned at one side of the upper clamping group, a second upper clamping driving cylinder positioned at the other side of the upper clamping group, and an upper bearing beam for bearing the first upper clamping driving cylinder, the second upper clamping driving cylinder and the plurality of upper clamping plates; the piston rod of the first upper clamping driving cylinder is arranged towards the upper clamping plate, and the piston rod of the second upper clamping driving cylinder is arranged towards the upper clamping plate.

Further, the upper clamping plate comprises an upper plate main body and a lower propping plate matched with the upper plate main body; the bottom of the upper plate main body is provided with a first accommodating groove for accommodating the lower supporting top plate, and the lower supporting top plate is slidably arranged in the first accommodating groove.

Further, a first through hole for the upper bearing beam to pass through is formed in the upper plate main body.

Further, the lower clamping mechanism comprises a plurality of lower clamping plates which are arranged in parallel, and a lower clamping driving mechanism for driving the plurality of upper clamping plates to be close to each other; the plurality of lower clamping plates form a lower clamping group, and a lower reset spring is arranged between the adjacent lower clamping plates.

Further, the lower clamping driving mechanism further comprises lower clamping driving assemblies positioned on two sides of the lower clamping group.

Further, the lower clamping driving assembly comprises a first lower clamping driving cylinder positioned at one side of the lower clamping group, a second lower clamping driving cylinder positioned at the other side of the lower clamping group, and a lower bearing beam for bearing the first lower clamping driving cylinder, the second lower clamping driving cylinder and the plurality of lower clamping plates; the piston rod of the first lower clamping driving cylinder is arranged towards the lower clamping plate, and the piston rod of the second lower clamping driving cylinder is arranged towards the lower clamping plate.

Further, the lower clamping plate comprises a lower plate main body and an upper propping plate matched with the lower plate main body; the top of lower plate main part is formed with the second accommodation groove of holding and supports the roof, it supports roof slidable mounting in the second accommodation groove to go up.

Further, a second through hole for the lower bearing beam to pass through is formed in the lower plate main body.

Further, the stone stabilizing device is also included for stabilizing the stone; the stabilizing device comprises a plurality of limiting assemblies which can extend into gaps of the stone, a third mounting frame which bears the limiting assemblies, and a second sliding driving assembly which drives the third mounting frame to be close to or far away from the stone.

Further, a plurality of spacing components are arranged at intervals along the direction of stone material arrangement.

Further, the limiting assembly comprises a plurality of vertically arranged rotating rollers.

Further, the second mounting rack package carries a connecting rack for mounting a plurality of limiting assemblies and a base for carrying the connecting rack; the connecting frame is provided with a plurality of connecting blocks which are rotationally connected with the rotating roller, the connecting blocks are perpendicular to the rotating roller and are arranged at the upper end and the lower end of the rotating roller.

Further, the second sliding driving assembly comprises a second guide rail and a second chute which is positioned below the base and matched with the second guide rail.

Further, the stone loading and unloading device is used for loading or unloading the stone into or from the clamping device; the loading and unloading device comprises a clamping assembly capable of clamping stone, a bearing seat for bearing the clamping assembly, and a third sliding driving assembly for driving the bearing seat to be close to or far away from the clamping device.

Further, the clamping assembly comprises a first clamping arm and a second clamping arm which are positioned at two sides of the bearing seat; the first clamping arm and the second clamping arm are arranged in parallel on the same horizontal height.

Further, the opposite surfaces of the first clamping arm and the second clamping arm are respectively provided with a first clamping driving cylinder and a second clamping driving cylinder, the end part of the piston rod of the first clamping driving cylinder is also provided with a first clamping plate, and the end part of the piston rod of the second clamping driving cylinder is also provided with a second clamping plate.

Further, bear the seat and including bearing the base and being located the rotation post that bears on the base, the rotation post rotates to be connected bear on the base, still be equipped with the connecting piece of connecting first centre gripping arm and second centre gripping arm on the rotation post.

Further, the third sliding driving assembly comprises a third guide rail positioned on the ground and a third sliding groove positioned at the bottom of the bearing base.

Further, the stone placing device is also included.

After adopting above-mentioned structure, the invention relates to a high-efficiency stone polishing device, compared with the prior art, has the following beneficial effects at least:

1. through set up a plurality of grinding wheels side by side on grinding device, can polish the multi-disc stone material simultaneously, through the last first slip drive assembly of grinding device, can drive the grinding wheel simultaneously and remove to clamping device, improved the efficiency that the stone material was polished.

2. The upper clamping mechanism and the lower clamping mechanism of the clamping device clamp the cut stone, the upper clamping plate of the upper clamping mechanism and the lower clamping plate of the lower clamping mechanism are respectively clung together under the action of the upper clamping driving assembly and the lower clamping driving assembly, the cut stone is clamped between the upper clamping plate and the lower clamping plate, each stone corresponds to one upper clamping plate and one lower clamping plate respectively, the upper clamping driving assembly and the lower clamping driving assembly simultaneously unload force, and at the moment, the upper reset spring between the adjacent upper clamping plates and the lower reset spring between the adjacent lower clamping plates stretch simultaneously, so that the upper clamping plates and the lower clamping plates are simultaneously stretched, and the stones are automatically separated and separated, so that high automation is realized.

3. The stone material is when polishing, through the gap between advancing the stone material with the spacing subassembly of securing device, can prevent that the stone material from taking place the skew in polishing.

4. The stone material can be automatically fed and discharged through the feeding and discharging device, and labor is saved.

Drawings

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

FIG. 2 is a schematic view of a clamping device according to the present invention;

FIG. 3 is a schematic view of the structure of the upper clamping plate in the present invention;

FIG. 4 is a schematic view of the lower clamp of the present invention;

FIG. 5 is a schematic view of a polishing apparatus according to the present invention;

FIG. 6 is a schematic cross-sectional view of a grinding wheel of the present invention;

FIG. 7 is a schematic structural diagram of the feeding and discharging device in the invention;

FIG. 8 is a schematic view of the structure of the stabilizer of the invention.

In the figure: 1-clamping device, 11-upper clamping mechanism, 111-upper clamping plate, 1111-upper plate body, 1112-lower top plate, 1113-first through hole, 112-upper clamping driving mechanism, 113-upper return spring, 12-lower clamping mechanism, 121-lower clamping plate, 1211-lower plate body, 1212-upper top plate, 1213-second through hole, 122-lower clamping driving mechanism, 123-lower return spring

2-grinding device, 21-grinding wheel, 211-belt slot, 212-abdication slot, 22-grinding driving component, 221-grinding motor, 222-belt pulley, 223-driving belt, 23-first mounting frame, 231-first bracket, 232-second bracket, 2321-bearing plate, 2322-connecting plate and 24-first sliding driving component;

3-stabilizing device, 31-limiting component, 311-rotating roller, 32-second mounting rack, 33-second sliding driving component and 331-second guide rail.

4-loading and unloading devices, 41-clamping assemblies, 411-first clamping arms, 412-second clamping arms, 42-bearing seats, 421-rotating columns and 43-third sliding driving assemblies;

5-placing the device.

Detailed Description

In order to further explain the technical scheme of the invention, the invention is explained in detail by specific examples.

As shown in fig. 1 to 8, a high-efficiency stone polishing apparatus includes a polishing device 2 for polishing stone, and a clamping device 1 for clamping stone; the polishing device 2 comprises a plurality of mounting frames 21 which are arranged at intervals along the arrangement direction of the stones, a first mounting frame 23 for mounting the plurality of mounting frames 21, and a first sliding driving assembly 24 for driving the mounting frames 21 to approach or separate from the clamping device 1; a belt groove 211 extending toward the center of 21 is formed on the circumferential surface of 21, and a belt groove 212 extending toward the center of 21 is formed on the circumferential surface of the belt groove 211, the width of the belt groove 212 being smaller than the width of the belt groove 211; the first slide drive assembly 24 includes a first rail extending toward the clamping device 1, and a first runner located at the bottom of the first mount 23 and slidably engaged with the first rail. After the stone is clamped by the clamping device, the plurality of 21 are driven to move towards the clamping device 1 simultaneously by the first sliding driving assembly 24 in the polishing device 2, so that the plurality of 21 polish the stone simultaneously, and the polishing efficiency of the stone is improved.

Preferably, the grinding device 2 further comprises a grinding drive assembly 22 for driving the plurality 21 of grinding drive assemblies to rotate simultaneously; the grinding drive assembly 22 includes a grinding motor 221, a pulley 222 coaxially rotated with an output shaft of the grinding motor 221, and a transmission belt 223 connected to the

pulleys

222 and 21. The belt pulley 222 is driven to rotate by the polishing motor 221, and the belt pulley 21 is driven to rotate by the driving belt 223

Preferably, the belt 223 is sleeved on the pulley 222 and the belt groove 211. By fitting the belt 223 around the pulley 222 and the belt groove 211, the rotation of the pulley 21 can be stabilized.

Preferably, the first mounting frame 23 includes a first bracket 231 for carrying the sanding drive assembly 22, a second bracket 232 for carrying the sanding drive assembly 21, and a mounting base for positioning the first and

second brackets

231, 232. The first bracket 231 has supporters at both ends of the pulley 222, on which mounting holes for the pulley 222 to rotate are formed, and both ends of the pulley 222 are formed with rotating shafts matched with the mounting holes; the output shaft of the grinding motor 221 is connected to the rotation shaft. The second bracket 232 has a carrier plate 2321 for carrying the carrier 21, and carrier posts fixedly connected to two ends of the carrier plate 2321; the carrier plate 2321 is further provided with a plurality of connection plates 2322 connected with the 21; one end of the connecting plate 2322 is fixedly connected to the carrier plate 2321, and the other end is rotatably connected in the belt groove 212 of the belt 21. One end of the connection plate 2322 connected to the 21 is formed with a rotation hole, which is in rotation fit with the belt slot 212.

Preferably, the clamping device 1 comprises an upper clamping mechanism 11 located above the stone material and a lower clamping mechanism 12 located below the stone material. The stone is clamped by the upper clamping mechanism 11 and the lower clamping mechanism 12 so as to facilitate the polishing of the stone by the polishing device 2.

Preferably, the upper clamping mechanism 11 includes a plurality of upper clamping plates 111 arranged in parallel at intervals, and an upper clamping driving mechanism 112 for driving the plurality of upper clamping plates 111 to approach each other; the plurality of upper clamping plates 111 form an upper clamping group, and an upper return spring 113 is further provided between adjacent upper clamping plates 111. The upper clamp drive mechanism 112 also includes upper clamp drive assemblies located on either side of the upper clamp group. The upper clamping driving assembly comprises a first upper clamping driving cylinder positioned at one side of the upper clamping group, a second upper clamping driving cylinder positioned at the other side of the upper clamping group, and an upper bearing beam for bearing the first upper clamping driving cylinder, the second upper clamping driving cylinder and the plurality of upper clamping plates 111; the piston rod of the first upper clamping driving cylinder is arranged towards the upper clamping plate 111 plate, and the piston rod of the second upper clamping driving cylinder is arranged towards the upper clamping plate 111. The upper clamping plates 111 are driven to be close to each other through the first upper clamping driving cylinder and the second upper clamping driving cylinder, so that the upper clamping plates 111 can be in one-to-one correspondence with stone pieces, and when the first upper clamping driving cylinder and the second upper clamping driving cylinder discharge force simultaneously, the upper clamping plates 111 are separated from each other under the action of the upper reset spring 113, so that the stone pieces are driven to be separated.

Preferably, the upper clamping plate 111 includes an upper plate body 1111, and a lower abutment plate 1112 cooperating with the upper plate body 1111; the bottom of the upper plate body 1111 is formed with a first receiving groove for receiving the lower top plate 1112, and the lower top plate 1112 is slidably mounted in the first receiving groove. When the stone is clamped in the clamping device 1, the lower propping top plate 1112 is positioned in the first accommodating groove, so that the stone can enter the clamping device 1 with enough clearance, and after the stone is clamped in the clamping device 1, the lower propping top plate 1112 moves downwards to prop against the upper wall of the stone, so that the stone is clamped; in addition, the micro cylinder is additionally arranged in the first accommodating groove to drive the lower supporting top plate 1112 to slide in the first accommodating groove.

Preferably, the upper plate body 1111 is further formed with a first through hole 1113 through which the upper load beam passes. The first through hole 1113 is slidably engaged with the upper carrier beam, facilitating sliding of the upper clamping plate 111.

Preferably, the lower clamping mechanism 12 includes a plurality of lower clamping plates 121 arranged in parallel, and a lower clamping driving mechanism 122 for driving the plurality of upper clamping plates 111 to approach each other; the plurality of lower clamping plates 121 form a lower clamping group, and a lower return spring 123 is further provided between adjacent lower clamping plates 121. The lower clamp drive mechanism 122 also includes lower clamp drive assemblies located on either side of the lower clamp group. The lower clamping driving assembly comprises a first lower clamping driving cylinder positioned at one side of the lower clamping group, a second lower clamping driving cylinder positioned at the other side of the lower clamping group, and a lower bearing beam for bearing the first lower clamping driving cylinder, the second lower clamping driving cylinder and the plurality of lower clamping plates 121; the piston rod of the first lower clamping driving cylinder is arranged towards the lower clamping plate 121 plate, and the piston rod of the second lower clamping driving cylinder is arranged towards the lower clamping plate 121. The lower clamping plates 121 are simultaneously driven to be close to each other by the first lower clamping driving cylinder and the second lower clamping driving cylinder, so that the lower clamping plates 121 can be in one-to-one correspondence with stone pieces, and when the first lower clamping driving cylinder and the second lower clamping driving cylinder simultaneously unload force, the lower clamping plates 121 are separated from each other under the action of the lower reset spring 123, so that the stone pieces are driven to be separated.

Preferably, the lower clamping plate 121 includes a lower plate body 1211, and an upper abutment plate 1212 mated with the lower plate body 1211; the top of the lower plate body 1211 is formed with a second receiving groove that receives the upper top plate 1212, and the upper top plate 1212 is slidably mounted in the second receiving groove. When the stone is clamped into the clamping device 1, the upper propping top plate 1212 is positioned in the first accommodating groove, so that the stone can enter the clamping device 1 with enough clearance, and after the stone is clamped into the clamping device 1, the upper propping top plate 1212 moves upwards to prop against the lower wall of the stone, so that the stone is clamped; in addition, the micro cylinder can be additionally arranged in the second accommodating groove to drive the upper propping top plate 1212 to slide in the second accommodating groove.

Preferably, the lower plate body 1211 further has a second through hole 1213 formed therein through which the lower carrier beam passes. The second through hole 1213 is slidably engaged with the lower carrier beam to facilitate sliding of the lower clamping plate 121.

Preferably, the stone stabilizing device 3 is further arranged for stabilizing the stone; the stabilizing device 3 comprises a plurality of limiting assemblies 31 which can extend into gaps between the stones, a third mounting frame which carries the limiting assemblies 31, and a second sliding driving assembly 33 which drives the third mounting frame to be close to or far away from the stones. When 21 just gets into the clearance between the stone material and polishes, because both ends atress are uneven around the stone material, take place the slope easily, consequently can drive a plurality of spacing subassemblies 31 through the second slip drive assembly 33 and remove simultaneously between the clearance of entering the stone material, make both ends atress balanced around the stone material, can not take place the slope.

Preferably, the plurality of spacing members 31 are spaced apart along the direction in which the stones are aligned. The distance between adjacent spacing assemblies 31 is equal to the thickness of the stone material.

Preferably, the spacing assembly 31 includes a plurality of vertically disposed rotating rollers 311. The gap between the stones can be more easily accessed by the form of the rotating roller 311.

Preferably, the second mounting frame 32 comprises a connecting frame for mounting a plurality of limiting assemblies 31 and a base for bearing the connecting frame; the connecting frame is provided with a plurality of connecting blocks which are rotationally connected with the rotating roller 311, the connecting blocks are perpendicular to the rotating roller 311 and are arranged at the upper end and the lower end of the rotating roller 311.

Preferably, the second sliding driving assembly 33 includes a second guide rail 331 and a second sliding groove located below the base and matched with the second guide rail 331. The spacing assembly 31 may be driven to slide along the third rail by a lead screw.

Preferably, the stone material feeding and discharging device 4 is used for feeding or discharging the stone material into or from the clamping device 1; the loading and unloading device 4 comprises a clamping component 41 capable of clamping stone, a bearing seat 42 for bearing the clamping component 41, and a 43 for driving the bearing seat 42 to be close to or far from the clamping device 1. Automatic feeding and discharging of stone materials is achieved through the feeding and discharging device 4, and working efficiency is improved.

Preferably, the clamping assembly 41 includes a first clamping arm 411 and a second clamping arm 412 located at two sides of the carrying seat 42; the first clamping arm 411 and the second clamping arm 412 are disposed in parallel at the same horizontal level. The opposite surfaces of the first clamping arm 411 and the second clamping arm 412 are respectively provided with a first clamping driving cylinder and a second clamping driving cylinder, the end part of the piston rod of the first clamping driving cylinder is also provided with a first clamping plate, and the end part of the piston rod of the second clamping driving cylinder is also provided with a second clamping plate. The bearing seat 42 comprises a bearing base and a rotating column 421 positioned on the bearing base, the rotating column 421 is rotationally connected on the bearing base, and a connecting piece for connecting the first clamping arm 411 and the second clamping arm 412 is further arranged on the rotating column 421. 43 comprises a third rail on the ground and a third runner at the bottom of the load-bearing base. The stone can be clamped by driving the first clamping plate and the second clamping plate to be close relatively through the first clamping driving cylinder and the second clamping driving cylinder on the first clamping arm 411 and the second clamping arm 412 at the same time, and then the stone is moved out of or into the clamping device 1 through the 43. In addition, the first clamping arm 411 and the second clamping arm 412 may have a telescopic structure.

Preferably, a placing device 5 for placing stone is also included. The preventing device can pre-put the stone which is cut but not polished yet.

The above examples and drawings are not intended to limit the form or form of the present invention, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present invention.

Claims

1. High-efficiency stone polishing equipment, which is characterized in that: comprises a polishing device for polishing stone and a clamping device for clamping stone; the polishing device comprises a plurality of polishing wheels which are arranged at intervals along the arrangement direction of the stone, a first mounting frame for mounting the polishing wheels, and a first sliding driving assembly for driving the polishing wheels to be close to or far from the clamping device; a belt groove extending towards the center of the grinding wheel is formed on the circumferential surface of the grinding wheel, a relief groove extending towards the center of the grinding wheel is formed on the circumferential surface of the belt groove, and the width of the relief groove is smaller than that of the belt groove; the first sliding driving assembly comprises a first guide rail extending towards the clamping device and a first chute which is positioned at the bottom of the first mounting frame and is in sliding fit with the first guide rail;

the polishing device further comprises a polishing driving assembly for driving the polishing wheels to rotate simultaneously; the polishing driving assembly comprises a polishing motor, a belt pulley coaxially rotating with an output shaft of the polishing motor, and a transmission belt connected to the belt pulley and the polishing wheel;

the transmission belt is sleeved on the belt pulley and the belt groove;

the first mounting frame comprises a first bracket for bearing the polishing driving assembly, a second bracket for bearing a polishing wheel and a fixing seat for placing the first bracket and the second bracket;

the first support is provided with support columns positioned at two ends of the belt pulley, mounting holes for the belt pulley to rotate are formed in the support columns, and rotating shafts matched with the mounting holes are formed at two ends of the belt pulley; an output shaft of the polishing motor is connected to the rotating shaft;

the second bracket is provided with a bearing plate for bearing the grinding wheel and bearing columns fixedly connected to two ends of the bearing plate; the bearing plate is also provided with a plurality of connecting plates connected with the polishing wheels; one end of the connecting plate is fixedly connected to the bearing plate, and the other end of the connecting plate is rotatably connected to the abdication groove of the grinding wheel;

the clamping device comprises an upper clamping mechanism positioned above the stone and a lower clamping mechanism positioned below the stone;

the upper clamping mechanism comprises a plurality of upper clamping plates which are arranged in parallel at intervals, and an upper clamping driving mechanism for driving the upper clamping plates to be close to each other; the upper clamping plates form an upper clamping group, and an upper reset spring is arranged between the adjacent upper clamping plates;

the upper clamping driving mechanism further comprises upper clamping driving assemblies positioned at two sides of the upper clamping group;

the upper clamping driving assembly comprises a first upper clamping driving cylinder positioned at one side of the upper clamping group, a second upper clamping driving cylinder positioned at the other side of the upper clamping group, and an upper bearing beam for bearing the first upper clamping driving cylinder, the second upper clamping driving cylinder and a plurality of upper clamping plates; the piston rod of the first upper clamping driving cylinder faces the upper clamping plate, and the piston rod of the second upper clamping driving cylinder faces the upper clamping plate;

the upper clamping plate comprises an upper plate main body and a lower propping plate matched with the upper plate main body; the bottom of the upper plate main body is provided with a first accommodating groove for accommodating a lower supporting top plate, and the lower supporting top plate is slidably arranged in the first accommodating groove;

the upper plate main body is also provided with a first through hole for the upper bearing beam to pass through;

the lower clamping mechanism comprises a plurality of lower clamping plates which are arranged in parallel, and a lower clamping driving mechanism for driving the plurality of upper clamping plates to be close to each other; the plurality of lower clamping plates form a lower clamping group, and a lower reset spring is arranged between the adjacent lower clamping plates;

the lower clamping driving mechanism further comprises lower clamping driving assemblies positioned at two sides of the lower clamping group;

the lower clamping driving assembly comprises a first lower clamping driving cylinder positioned at one side of the lower clamping group, a second lower clamping driving cylinder positioned at the other side of the lower clamping group, and a lower bearing beam for bearing the first lower clamping driving cylinder, the second lower clamping driving cylinder and the plurality of lower clamping plates; the piston rod of the first lower clamping driving cylinder faces the lower clamping plate, and the piston rod of the second lower clamping driving cylinder faces the lower clamping plate;

the lower clamping plate comprises a lower plate main body and an upper propping plate matched with the lower plate main body; the top of the lower plate main body is provided with a second accommodating groove for accommodating an upper propping top plate, and the upper propping top plate is slidably arranged in the second accommodating groove;

the lower plate main body is also provided with a second through hole for the lower bearing beam to pass through;

the stone stabilizing device is used for stabilizing the stone; the stabilizing device comprises a plurality of limiting assemblies which can extend into gaps of the stone, a third mounting frame which bears the limiting assemblies, and a second sliding driving assembly which drives the third mounting frame to be close to or far away from the stone.

2. A high efficiency stone grinding apparatus as set forth in claim 1 wherein: the limiting assemblies are arranged at intervals along the direction of stone arrangement.

3. A high efficiency stone grinding apparatus as set forth in claim 2 wherein: the limiting assembly comprises a plurality of vertically arranged rotating rollers.

4. A high efficiency stone grinding apparatus as set forth in claim 3 wherein: the second mounting frame comprises a connecting frame for bearing and mounting a plurality of limiting assemblies and a base for bearing the connecting frame; the connecting frame is provided with a plurality of connecting blocks which are rotationally connected with the rotating roller, the connecting blocks are perpendicular to the rotating roller and are arranged at the upper end and the lower end of the rotating roller.

5. A high efficiency stone grinding apparatus as set forth in claim 4 wherein: the second sliding driving assembly comprises a second guide rail and a second chute which is positioned below the base and matched with the second guide rail.

6. A high efficiency stone grinding apparatus as set forth in claim 1 wherein: the stone loading and unloading device is used for loading or unloading the stone into or from the clamping device; the loading and unloading device comprises a clamping assembly capable of clamping stone, a bearing seat for bearing the clamping assembly, and a third sliding driving assembly for driving the bearing seat to be close to or far away from the clamping device.

7. The efficient stone polishing apparatus as claimed in claim 6, wherein: the clamping assembly comprises a first clamping arm and a second clamping arm which are positioned at two sides of the bearing seat; the first clamping arm and the second clamping arm are arranged in parallel on the same horizontal height.

8. A high efficiency stone grinding apparatus as set forth in claim 7 wherein: the opposite surfaces of the first clamping arm and the second clamping arm are respectively provided with a first clamping driving cylinder and a second clamping driving cylinder, the end part of a piston rod of the first clamping driving cylinder is also provided with a first clamping plate, and the end part of a piston rod of the second clamping driving cylinder is also provided with a second clamping plate.

9. A high efficiency stone grinding apparatus as set forth in claim 8 wherein: the bearing seat comprises a bearing base and a rotating column positioned on the bearing base, wherein the rotating column is rotationally connected to the bearing base, and a connecting piece for connecting the first clamping arm and the second clamping arm is further arranged on the rotating column.

10. A high efficiency stone grinding apparatus as set forth in claim 9 wherein: the third sliding driving assembly comprises a third guide rail positioned on the ground and a third sliding groove positioned at the bottom of the bearing base.

11. A high efficiency stone grinding apparatus as set forth in claim 1 wherein: the stone placing device is used for placing stones.