CN112606225A

CN112606225A - Negative pressure workbench and stone ultrathin plate fixed-thickness rough grinding machine applying same

Info

Publication number: CN112606225A
Application number: CN202011539065.5A
Authority: CN
Inventors: 杨应春
Original assignee: Fujian Yang Cheng Machinery Co ltd
Current assignee: Fujian Yang Cheng Machinery Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-04-06

Abstract

The invention discloses a negative pressure workbench and a stone ultrathin plate fixed-thickness rough grinding machine applying the negative pressure workbench, which comprise a negative pressure mechanism connected to a body, wherein the negative pressure mechanism comprises a vacuumizing hole arranged on the body, a sealing box communicated with the vacuumizing hole and a vacuumizing part connected with the sealing box, and the vacuumizing part can drive the vacuumizing hole to adsorb or separate a stone plate placed on the body through the sealing box. After the technical scheme is adopted, the sealing box, the vacuumizing hole and the vacuumizing component are arranged, namely the vacuum worm wheel negative pressure fan is started, the vacuum worm wheel negative pressure fan can enable negative pressure to be generated in the sealing box, so that the stone plate placed on the top plate of the body can be adsorbed, the stone plate can be always fixed with the body in the polishing process, the problem that the stone plate is not uniformly processed in thickness due to movement of the stone plate is avoided, and the stone ultrathin plate thickness-fixing rough grinding machine can polish the thickness of the stone plate to 0.5-2 mm.

Description

Negative pressure workbench and stone ultrathin plate fixed-thickness rough grinding machine applying same

Technical Field

The invention relates to stone processing equipment, in particular to a negative pressure workbench and a stone ultrathin plate thickness-fixed rough grinding machine applying the negative pressure workbench.

Background

In the prior art, stone is widely applied to indoor and outdoor decoration design, curtain wall decoration and public facility construction as a high-grade building decoration material. Common stone materials in the market at present are mainly divided into natural stone and artificial stone. The natural stone is divided into slate and granite according to the quality of physical and chemical characteristics. The artificial stone is divided into terrazzo and synthetic stone according to the working procedures. The terrazzo is formed by forging and pressing raw materials such as cement, concrete and the like; the synthetic stone is made up by using broken stone of natural stone as raw material, adding adhesive and polishing. The latter two are made by hand, so the strength is not as high as that of natural stone. The stone is a high-grade product of building decoration materials, natural stones are mainly divided into granite, slate, sandstone, limestone, volcanic rock and the like, along with the continuous development and progress of science and technology, the artificial stone products are also changed day by day, and the quality and the attractiveness of the artificial stone are not changed. With the development of building design, stone has become one of the important raw materials for building, decoration, road and bridge construction.

However, the stone needs to be processed before use, and the thickness of the stone needs to be adjusted because the stone has different thicknesses (in building decoration, the dimension and thickness of the stone have certain requirements, particularly indoor decoration, but thickness deviation is generated when the whole block of rough material is sawed into plates). At present, most of stone plate thickness-fixing machines are adopted to adjust and process the thickness of stones, the thickness of the stone plate processed by the existing stone plate thickness-fixing machines can only be processed to be more than 5 mm, stones, particularly marble stones, are fragile and easy to crack due to factors such as self strength and pore cracks, but some manufacturers compound the stones on materials such as aluminum plates, PVC plates and glass fiber cloth, so that the thickness of the stones can be below 5 mm, but the thickness of the stones cannot be processed to be below 2 mm, and the plates can warp due to the materials compounded on the back of the stones and glue, so that the thickness-fixing machines cannot work.

Disclosure of Invention

The invention provides a negative pressure workbench and a stone ultrathin plate thickness-fixing rough grinding machine applying the negative pressure workbench, and mainly aims to overcome the defect that the thickness of a stone plate cannot be processed to be below 2 mm by the conventional stone thickness-fixing machine.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the negative pressure workbench comprises a body and a negative pressure mechanism connected to the body, wherein the negative pressure mechanism comprises a vacuumizing hole arranged on the body, a sealing box communicated with the vacuumizing hole, and a vacuumizing part connected with the sealing box, and the vacuumizing part can drive the vacuumizing hole to adsorb or separate stone plates placed on the body through the sealing box.

Further, the vacuum holes are densely arranged on the top plate of the body.

Furthermore, the top of seal box fixed connection is on the bottom surface of body roof, and sets up with the roof of body is sealed.

Furthermore, the middle part of the sealing box, which is positioned on the bottom surface of the top plate of the body, is fixedly connected with two transversely arranged air inlet pipes, and a plurality of air distribution holes communicated with the air inlet pipes are formed in two side walls of each air inlet pipe.

Furthermore, the vacuumizing part is a vacuum worm wheel negative pressure fan, the vacuum worm wheel negative pressure fan is arranged on the outer side face of the seal box, the number of the vacuum worm wheel negative pressure fans is two, and each vacuum worm wheel negative pressure fan is connected with the air inlet pipe on the seal box through a steel wire hose.

Furthermore, the lower part of the side wall of the seal box is connected with an electromagnetic valve, the upper part of the inner cavity of the seal box is provided with a high water level probe, and the high water level probe is positioned below the air inlet pipe; a low water level probe is arranged on the lower part of the inner cavity of the seal box; the water level controller is electrically connected with the high water level probe, the low water level probe and the electromagnetic valve respectively.

Furthermore, the body is connected with a walking device, the walking device comprises walking wheels and a left driving motor and a right driving motor for driving the walking wheels to move, two sides of the body are respectively connected with a rotating shaft, two sides of each rotating shaft are respectively and rotatably connected with a walking wheel, and the rotating shaft positioned on the front side of the body is connected with a left driving motor and a right driving motor; the body is also provided with a track for the walking wheels to move left and right.

The utility model provides a stone material ultra-thin plate thicknessing rough grinding machine, includes frame, head of polishing, the frame is located the below of head of polishing and is provided with the negative pressure workstation.

Furthermore, the polishing head is connected with the rack through a movable beam, the movable beam is transversely arranged on the upper part of the rack, a rack is arranged on the rack, a rotating shaft is arranged on the movable beam, a traveling gear meshed with the rack is sleeved on the rotating shaft, and a front-rear traveling speed reduction motor is connected to the end part of the rotating shaft, which is exposed out of the traveling gear; the front and back walking speed reducing motor can drive the walking gear to rotate, so that the movable beam can move back and forth on the frame.

Further, the polishing head comprises a fixed-thickness polishing disk mechanism and a pneumatic polishing disk mechanism, the fixed-thickness polishing disk mechanism comprises a main shaft connecting plate, a first main shaft motor, a lifting speed reducing motor, a thrust seat, a lifting screw rod and a lifting nut, the main shaft connecting plate is fixedly connected to the movable cross beam, the first main shaft motor is fixed on the upper end surface of the main shaft connecting plate, the output shaft of the first spindle motor is fixedly connected with a lifting sliding hollow shaft, the tail part of the lifting sliding hollow shaft is fixedly connected with a cutter head with a certain thickness, the thrust seat is positioned below the main shaft connecting plate, one end of the thrust seat is connected with the main shaft connecting plate through a guide rod and a guide sleeve, the other end of the thrust base is connected with a lifting speed reducing motor, an output shaft of the lifting speed reducing motor is fixedly connected with a lifting screw rod, and the tail part of the lifting screw rod is meshed and connected with a lifting nut positioned on a main shaft connecting plate; the pneumatic grinding disc mechanism comprises a mounting seat, a sliding sleeve, a lifting main shaft, a second main shaft motor, a lifting air cylinder and a pneumatic grinding disc, the mounting seat is fixedly connected to the movable cross beam, the sliding sleeve is fixedly connected with the mounting seat, a hollow sliding shaft capable of sliding up and down in the sliding sleeve is arranged in the sliding sleeve, the lifting main shaft is rotatably connected into the hollow sliding shaft through a main shaft bearing, a first belt pulley with a spline sleeve is arranged at the part of the lifting main shaft located in the mounting seat, a spline matched with the spline sleeve on the first belt pulley is arranged on the lifting main shaft, the second main shaft motor is arranged on the upper end surface of the mounting seat, a second belt pulley is sleeved at the part of an output shaft of the second main shaft motor extending into the mounting seat, and the first belt pulley is connected with the second belt pulley through a triangular belt, the top of the lifting main shaft extends out of the mounting seat and then is connected with a telescopic rod of a lifting air cylinder positioned on the upper end face of the mounting seat, and the tail of the lifting main shaft is connected with a pneumatic grinding disc.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

1. the stone ultrathin plate thickness-fixing rough grinding machine is simple in structure and strong in practicability, the sealing box, the vacuumizing hole and the vacuumizing component are arranged, namely the vacuum worm gear negative-pressure fan is started, the vacuum worm gear negative-pressure fan can enable negative pressure to be generated in the sealing box, so that a stone plate placed on the top plate of the body can be adsorbed, the stone plate can be always fixed with the body in the grinding process, the problems that the stone plate is not uniformly machined and damaged due to movement of the stone plate are solved, and the stone ultrathin plate thickness-fixing rough grinding machine can grind the thickness of the stone plate to be 0.5-2 mm.

2. In the invention, by arranging the sealing box and the vacuumizing hole, water used in the polishing operation process can flow into the sealing box from the vacuumizing hole and then is discharged from the sealing box, so that the centralized treatment of the water is realized, and the practicability is strong.

3. According to the invention, the stone plate can be milled to the required thickness by arranging the two fixed-thickness grinding disc mechanisms and the pneumatic grinding disc mechanism, namely the fixed-thickness grinding disc mechanism, and the milling efficiency can be greatly improved by arranging the two fixed-thickness grinding disc mechanisms; the pneumatic grinding disc mechanism can polish knife marks generated by the fixed-thickness grinding disc mechanism during grinding of the stone plate, so that the surface of the stone plate is more fine and smooth.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a stone ultra-thin plate thickness-fixed rough grinding machine according to the present invention;

FIG. 2 is a front view of the ultra-thin stone slab thickness-fixed rough grinding machine of the present invention;

FIG. 3 is a top view of the ultra-thin stone slab thickness-determining rough grinding machine of the present invention;

FIG. 4 is a left side view of the ultra-thin stone slab thickness-determining rough grinding machine of the present invention;

FIG. 5 is a top view of the vacuum table of the present invention;

FIG. 6 is a front view of the negative pressure table of the present invention;

FIG. 7 is a bottom view of the vacuum table of the present invention;

FIG. 8 is a left side view of the negative pressure table of the present invention;

FIG. 9 is a schematic view of a constant thickness abrasive disc mechanism of the present invention;

FIG. 10 is a front view of the pneumatic grinding disc mechanism of the present invention;

fig. 11 is a left side view of the pneumatic grinding disc mechanism of the present invention.

In the figure: 1. a body; 2. vacuumizing holes; 3. a sealing box; 4. a vacuum-pumping component; 5. an air inlet pipe; 61. a traveling wheel; 62. a left and right driving motor; 7. a fixed-thickness grinding disc mechanism; 71. a spindle connecting plate; 72. a first spindle motor; 73. a lifting gear motor; 74. a thrust seat; 75. a lifting screw rod; 76. a lifting nut; 77. a lifting sliding hollow shaft; 78. a cutter head with a fixed thickness; 79. a guide bar; 710. a guide sleeve; 8. a pneumatic grinding disc mechanism; 81. a mounting seat; 82. lifting the main shaft; 83. a second spindle motor; 84. a lifting cylinder; 85. a pneumatic grinding disc; 86. a sliding sleeve; 88. a first pulley; 89. a second pulley; 9. a frame; 91. a track; 10. the beam is moved.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Examples

Referring to fig. 1 to 10, a negative pressure workbench comprises a body 1 and a negative pressure mechanism connected to the body, wherein the negative pressure mechanism comprises a vacuumizing hole 2 arranged on the body, a sealing box 3 communicated with the vacuumizing hole, and a vacuumizing part 4 connected with the sealing box 3, and the vacuumizing part 4 can drive the vacuumizing hole 2 to adsorb or separate a stone slab placed on the body through the sealing box 3.

Through being provided with the seal box, evacuation hole and evacuation part, start vacuum worm wheel negative pressure fan promptly, vacuum worm wheel negative pressure fan can make the production negative pressure in the seal box, so that can adsorb the stone material board of arranging in on the body roof, make the stone material board can remain fixed throughout with the body at the in-process of polishing, the removal of having avoided the stone material board is to the inhomogeneous and damaged problem of stone material plate thickness processing, thereby make this super thin plate of stone material decide thick rough grinding machine can polish the stone material plate thickness to 0.5-2 millimeters.

Further, the vacuuming holes 2 are densely arranged on the top plate of the body 1. Through being provided with a plurality of evacuation holes on the roof of body 1 densely, be favorable to adsorbing slabstone material that can be better at vacuum worm wheel negative-pressure air fan, also do benefit to simultaneously and carry out quick inflow to the seal box to the water that uses in the operation process of polishing under vacuum worm wheel negative-pressure air fan's effect to realized the centralized processing to water, the usability is strong.

Furthermore, the middle part of the sealing box, which is positioned on the bottom surface of the top plate of the body, is fixedly connected with two transversely arranged air inlet pipes, and a plurality of air distribution holes communicated with the air inlet pipes are formed in two side walls of each air inlet pipe. Through the arrangement of the air separation holes, convection can be formed between the air separation holes and the vacuumizing holes, and the adsorption of the vacuum worm gear negative pressure fan on the stone plate is facilitated.

Further, the vacuumizing component is a vacuum worm wheel negative pressure fan, the vacuum worm wheel negative pressure fan is arranged on the outer side face of the seal box 3, the number of the vacuum worm wheel negative pressure fans is two, and each vacuum worm wheel negative pressure fan is connected with the air inlet pipe 5 on the seal box 3 through a steel wire hose. The suction force to the stone plate can be improved by arranging the two vacuum turbine negative pressure fans.

Furthermore, the lower part of the side wall of the seal box is connected with an electromagnetic valve, the upper part of the inner cavity of the seal box is provided with a high water level probe, and the high water level probe is positioned below the air inlet pipe; a low water level probe is arranged on the lower part of the inner cavity of the seal box; the water level controller is electrically connected with the high water level probe, the low water level probe and the electromagnetic valve respectively. Through being provided with solenoid valve, high water level probe and low water level probe and water level controller on the seal box, when the high water level probe sensed the water level in the seal box and exceeded the setting value promptly, will send the signal that senses to water level controller, water level controller will control the solenoid valve in order to carry out the drainage, when the low water level probe sensed the water level and had arrived the setting value, will send the signal that senses to water level controller, water level controller will control the solenoid valve and close, and degree of automation is high.

Further, the body 1 is connected with a walking device, the walking device comprises walking wheels 61 and a left-right driving motor 62 for driving the walking wheels 61 to move, two sides of the body 1 are respectively connected with a rotating shaft, two sides of each rotating shaft are respectively connected with a walking wheel 61 in a rotating manner, and the rotating shaft positioned on the front side of the body 1 is connected with a left-right driving motor 1; the body 1 is also provided with a track 91 for the left and right movement of the travelling wheels 61. Through setting up the running gear who combines to constitute such as controlling driving motor and walking wheel, control driving motor promptly and can the live-action wheel rotate, and then can make whole body can remove about in the frame of the below of polishing head, do benefit to and carry out comprehensive polishing to the slabstone material of placing on the body, the practicality is strong.

Referring to fig. 1 to 11, the rough grinding machine for the ultra-thin stone plate with the fixed thickness comprises a machine frame 9 and a grinding head, wherein a negative pressure workbench is arranged below the grinding head of the machine frame 9.

Furthermore, the polishing head is connected with a frame 9 through a movable beam 10, the movable beam 10 is transversely arranged on the upper part of the frame, a rack is arranged on the frame, a rotating shaft is arranged on the movable beam, a traveling gear meshed with the rack is sleeved on the rotating shaft, and a front-rear traveling speed reduction motor is connected at the end part of the rotating shaft, which is exposed out of the traveling gear; the front and back walking speed reducing motor can drive the walking gear to rotate, so that the movable beam can move back and forth on the frame. Through be provided with walking gear and walking gear motor around on the movable cross beam, walking gear motor around the drive promptly, the rotation of walking gear motor's output shaft around has driven the rotation of axis of rotation, it can walk along the rack to have driven the walking gear, and then has driven whole movable cross beam and can carry out the back-and-forth movement in the frame, finally make the head of polishing that is located on the movable cross beam can carry out the back-and-forth movement in the frame, in order to do benefit to and to carry out the omnidirectional grinding to the slabstone material on the negative pressure workstation, therefore, the clothes hanger is strong.

Further, the polishing head comprises a fixed-thickness grinding disc mechanism 7 and a pneumatic grinding disc mechanism 8, the fixed-thickness grinding disc mechanism comprises a main shaft connecting plate 71, a first main shaft motor 72, a lifting speed reducing motor 73, a thrust block 74, a lifting screw 75 and a lifting nut 76, the main shaft connecting plate 71 is fixedly connected to the movable cross beam 10, the first main shaft motor 72 is fixed on the upper end surface of the main shaft connecting plate 71, the output shaft of the first spindle motor 72 is fixedly connected with a lifting sliding hollow shaft 77, the tail part of the lifting sliding hollow shaft 77 is fixedly connected with a cutter head 78 with certain thickness, a thrust seat 74 is positioned below a spindle connecting plate 71, one end of the thrust seat 74 is connected with the spindle connecting plate 71 through a guide rod 79 and a guide sleeve 710, the other end of the thrust base 74 is connected with a lifting speed-reducing motor 73, the output shaft of the lifting speed-reducing motor 73 is fixedly connected with a lifting screw rod 75, the tail part of the lifting screw rod 75 is engaged and connected with a lifting nut 76 on the spindle connecting plate 71; the pneumatic grinding disc mechanism comprises a mounting seat 81, a sliding sleeve 86, a lifting spindle 82, a second spindle motor 83, a lifting cylinder 84 and a pneumatic grinding disc 85, the mounting seat 81 is fixedly connected to the movable cross beam 10, the sliding sleeve 86 is fixedly connected with the mounting seat 81, a hollow sliding shaft capable of sliding up and down in the sliding sleeve is arranged in the sliding sleeve 86, the lifting spindle 82 is rotatably connected in the hollow sliding shaft through a spindle bearing, a first belt pulley 88 with a spline sleeve is arranged at the part of the lifting spindle 82 located in the mounting seat 81, a spline matched with the spline sleeve on the first belt pulley 88 is arranged on the lifting spindle 82, the second spindle motor 83 is arranged on the upper end face of the mounting seat 81, a second belt pulley 89 is sleeved at the part of an output shaft of the second spindle motor 83 extending into the mounting seat, and the first belt pulley 88 is connected with the second belt pulley 89 through a triangular belt, the top of the lifting spindle 82 extends out of the mounting seat 81 and then is connected with a telescopic rod of a lifting cylinder 84 positioned on the upper end surface of the mounting seat 81, and the tail of the lifting spindle 82 is connected with a pneumatic grinding disc 85. The fixed-thickness grinding disc mechanism can mill the stone plate to the required thickness by arranging the fixed-thickness grinding disc mechanism and the pneumatic grinding disc mechanism, and the milling efficiency can be greatly improved by arranging the two fixed-thickness grinding disc mechanisms; the pneumatic grinding disc mechanism can polish knife marks generated by the fixed-thickness grinding disc mechanism during grinding of the stone plate, so that the surface of the stone plate is more fine and smooth.

The working principle is as follows:

placing the stone plate on the top plate of the body, starting the vacuum worm gear negative pressure fan, and enabling the vacuum worm gear negative pressure fan to firmly adsorb the stone plate on the body through the air inlet pipe, the air distribution holes and the vacuumizing holes;

the body passes through running gear and can removes, and at this in-process, driving motor about starting earlier, and driving motor can drive the rotation of axis of rotation about, and then can drive the rotation of walking wheel, and the walking wheel just can drive whole body and remove about along the frame to make the head of polishing in the frame can carry out omnidirectional processing to the stone material board.

When the stone plate needs to be milled, a first spindle motor in the fixed-thickness grinding disc mechanism is started, the rotation of an output shaft of the first spindle motor drives a fixed-thickness cutter disc to rotate, so that the fixed-thickness cutter disc can mill the stone plate, wherein when the required thickness needs to be milled, the fixed-thickness cutter disc needs to be lifted, in the process, a lifting speed reducing motor is started firstly, the lifting speed reducing motor drives a lifting lead screw to be meshed with a lifting nut to be connected, so that a spindle connecting plate can be lifted, and then a lifting sliding hollow shaft is driven to lift, and finally the fixed-thickness cutter disc is driven to lift up and down, so that rough machining for milling the stone plate is completed.

The pneumatic grinding disc mechanism can throw away tool marks generated by the fixed-thickness grinding disc mechanism during grinding of the stone plate, when the pneumatic grinding disc mechanism works, the second spindle motor is started firstly, the second spindle motor drives the second belt pulley connected with the second spindle motor to rotate through the rotation of an output shaft of the second spindle motor, the second belt pulley drives the first belt pulley to rotate through the V-belt, so that the lifting spindle can drive the pneumatic grinding disc to rotate, and the pneumatic grinding disc can throw away tool marks generated by the fixed-thickness grinding disc mechanism during grinding of the stone plate; the lifting cylinder is started, the telescopic rod of the lifting cylinder extends or retracts to adjust the grinding amount, and the degree of automation is high.

The whole polishing head can move back and forth on the rack through the movable beam, the front and back walking speed reduction motors are driven, the rotation of the output shafts of the front and back walking speed reduction motors drives the rotation of the rotation shafts, the walking gears are driven to walk along the racks, and then the whole movable beam is driven to move back and forth on the rack, finally the polishing head on the movable beam can move back and forth on the rack, so that the stone plates on the negative pressure workbench can be ground in an all-dimensional mode, and the practicability is high.

It should be noted that electrical components in the present application are all connected to an external power supply and control system, and the lifting cylinder is connected to an external air source; the control system adopts a structure in the prior art, and can be used for controlling the operation of the vacuum worm gear negative pressure fan, the left and right driving motors, the front and back walking speed reducing motor, the lifting speed reducing motor, the first spindle motor, the second spindle motor and the lifting cylinder.

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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a negative pressure workstation, includes body (1), its characterized in that: including the negative pressure mechanism of connection on the body, negative pressure mechanism including arrange evacuation hole (2) at the body, with seal box (3) of evacuation hole intercommunication, with evacuation part (4) that seal box (3) are connected, this evacuation part (4) can drive through seal box (3) the stone slab that evacuation hole (2) will be placed on the body adsorbs or separates.

2. A negative pressure workbench according to claim 1, wherein: the vacuumizing holes (2) are densely arranged on the top plate of the body (1).

3. A negative pressure workbench according to claim 1, wherein: the top of the seal box (3) is fixedly connected to the bottom surface of the top plate of the body (1) and is arranged in a sealing mode with the top plate of the body.

4. A negative pressure workbench according to claim 1, wherein: the middle part of the sealing box (3) on the bottom surface of the top plate of the body (1) is fixedly connected with two transversely arranged air inlet pipes (5), and each of the two side walls of each air inlet pipe (5) is provided with a plurality of air distributing holes communicated with the inside of the air inlet pipe.

5. The negative pressure processing table for stone processing according to claim 1, wherein: the vacuumizing component is a vacuum worm gear negative pressure fan, the vacuum worm gear negative pressure fan is arranged on the outer side face of the seal box (3), the number of the vacuum worm gear negative pressure fans is two, and each vacuum worm gear negative pressure fan is connected with an air inlet pipe (5) on the seal box (3) through a steel wire hose.

6. A negative pressure workbench according to claim 1, wherein: the lower part of the side wall of the seal box is connected with an electromagnetic valve, the upper part of the inner cavity of the seal box is provided with a high water level probe, and the high water level probe is positioned below the air inlet pipe; a low water level probe is arranged on the lower part of the inner cavity of the seal box; the water level controller is electrically connected with the high water level probe, the low water level probe and the electromagnetic valve respectively.

7. A negative pressure workbench according to claim 1, wherein: the walking device is connected to the body (1) and comprises walking wheels (61) and a left driving motor and a right driving motor (62) which are used for driving the walking wheels (61) to move, two sides of the body (1) are respectively connected with a rotating shaft, two sides of each rotating shaft are respectively connected with a walking wheel (61) in a rotating mode, and the rotating shaft positioned on the front side of the body (1) is connected with the left driving motor and the right driving motor (1); the body (1) is also provided with a track (91) for the traveling wheels (61) to move left and right.

8. The utility model provides a thick rough grinding machine is decided to stone material ultra-thin plate, includes frame (9), the head of polishing, its characterized in that: the frame (9) is provided with a negative pressure workbench according to any one of claims 1 to 7 below the sanding head.

9. The thicknessing rough grinding machine for ultra-thin stone plates as claimed in claim 8, wherein: the polishing head is connected with a rack (9) through a movable beam (10), the movable beam (10) is transversely arranged on the upper part of the rack, a rack is arranged on the rack, a rotating shaft is arranged on the movable beam, a traveling gear meshed with the rack is sleeved on the rotating shaft, and a front and rear traveling speed reduction motor is connected to the end part of the rotating shaft, which is exposed out of the traveling gear; the front and back walking speed reducing motor can drive the walking gear to rotate, so that the movable beam can move back and forth on the frame.

10. The thicknessing rough grinding machine for ultra-thin stone plates as claimed in claim 9, wherein: the polishing head comprises a fixed-thickness polishing disc mechanism (7), a pneumatic polishing disc mechanism (8), the fixed-thickness polishing disc mechanism comprises a spindle connecting plate (71), a first spindle motor (72), a lifting speed reducing motor (73), a thrust seat (74), a lifting lead screw (75) and a lifting nut (76), the spindle connecting plate (71) is fixedly connected onto a movable cross beam (10), the first spindle motor (72) is fixed onto the upper end face of the spindle connecting plate (71), an output shaft of the first spindle motor (72) is fixedly connected with a lifting sliding hollow shaft (77), a certain-thickness cutter head (78) is fixedly connected onto the tail of the lifting sliding hollow shaft (77), the thrust seat (74) is located below the spindle connecting plate (71), one end of the thrust seat (74) is connected with the spindle connecting plate (71) through a guide rod (79) and a guide sleeve (710), the other end of the thrust seat (74) is connected with a lifting speed reducing motor (73), an output shaft of the lifting speed reducing motor (73) is fixedly connected with a lifting screw rod (75), and the tail part of the lifting screw rod (75) is meshed and connected with a lifting nut (76) positioned on a main shaft connecting plate (71); the pneumatic grinding disc mechanism comprises an installation seat (81), a sliding sleeve (86), a lifting spindle (82), a second spindle motor (83), a lifting cylinder (84) and a pneumatic grinding disc (85), the installation seat (81) is fixedly connected to the movable cross beam (10), the sliding sleeve (86) is fixedly connected with the installation seat (81), a hollow sliding shaft capable of sliding up and down in the sliding sleeve is arranged in the sliding sleeve (86), the lifting spindle (82) is rotatably connected into the hollow sliding shaft through a spindle bearing, a first belt pulley (88) with a spline sleeve is arranged at the part of the lifting spindle (82) located in the installation seat (81), a spline matched with the spline sleeve on the first belt pulley (88) is arranged on the lifting spindle (82), and the second spindle motor (83) is arranged on the upper end face of the installation seat (81), the part department cover that the output shaft of this second spindle motor (83) stretched into the mount pad is equipped with second belt pulley (89), be connected through the V-belt between first belt pulley (88) and second belt pulley (89), the top of lift main shaft (82) is stretched out behind mount pad (81) and is connected with the telescopic link that is located lift cylinder (84) on mount pad (81) up end, the afterbody of lift main shaft (82) is connected with pneumatic mill (85).