CN111250220B

CN111250220B - Grinding machine

Info

Publication number: CN111250220B
Application number: CN202010047242.1A
Authority: CN
Inventors: 胡昌金; 蒋敏泽
Original assignee: Shandong Runzhengfeng Food Co ltd
Current assignee: Shandong Runzhengfeng Food Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2021-08-10
Anticipated expiration: 2040-01-16
Also published as: CN111250220A

Abstract

The invention belongs to the technical field of grinders, specifically a grinder; includes a body, a sealing device and a workbench; the body is provided with a bottom plate for installing a support column, and a cantilever is installed at the top of the support column; in the sealing device, the cylinder is fixedly connected to the cantilever, the pressure plate is installed on the cylinder, and the reinforcing ribs and suction cups are located on both sides of the pressure plate; a collection groove is arranged in the workbench, the sliding base is slidably installed in the table, the annular airbag is located on the sliding base, the motor is fixedly connected to the center of the sliding base, the cam is installed on the motor shaft, the fixed plate is arranged above the inner side of the table body, the clamping posts are evenly installed in the collection tank, the grinding device is slidably installed on the fixed plate, and is connected to the motor through gear one and gear two; the grinding machine of the invention has the characteristics of high grinding efficiency, low resource consumption and long service life.

Description

Grinding machine

Technical Field

The invention belongs to the technical field of grinding machines, and particularly relates to a grinding machine.

Background

Lapping machines are machines that grind the surface of a workpiece with a lapping tool coated with or embedded in an abrasive material. The grinding machine is mainly used for grinding high-precision planes, inner and outer cylindrical surfaces, conical surfaces, spherical surfaces, threaded surfaces and other molded surfaces in workpieces. The main types of grinding machines are disc mills, spindle mills and various special grinding machines. The grinding machine control system takes the PLC as a control core, and the text display is a control mode of a man-machine conversation interface. The man-machine conversation interface can be used for carrying out conversation with people on information such as equipment maintenance, operation, faults and the like; the operation interface is visual and convenient, the program control is realized, and the operation is simple.

Grind the machine simultaneously and also can grind great particulate matter, make great particulate matter grind to less particulate matter, but grind the machine among the prior art and relate to less with the function that the large granule ground is into the small granule, it has the limitation to cause among the prior art to grind the machine application range, it is important heavy to grind the cooling of machine to great granule grinding in-process simultaneously at the machine, the high temperature can influence the life who grinds the machine, and grind the machine among the prior art and adopt dry process to grind among the large granule grinding process usually, the life who grinds the machine when producing a large amount of smoke and dust is low.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides a grinding machine, which is mainly used for solving the problems that the use range of the grinding machine in the prior art is limited, the service life of the grinding machine is influenced by overhigh temperature of the grinding machine in the process of grinding larger particles by the grinding machine, and the service life of the grinding machine is low while a large amount of smoke is generated because the grinding machine in the prior art usually adopts a dry method for grinding large particles.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a grinding machine, which comprises a machine body, a sealing device and a workbench; the machine body comprises a bottom plate, a support column and a cantilever; the supporting columns are fixedly connected to the surface of the bottom plate; the cantilever is fixedly connected to the upper end of the support column; the sealing device is arranged on the lower surface of the tail end of the cantilever; the workbench is fixedly connected to the upper surface of the bottom plate and is positioned below the sealing device;

the workbench comprises a workbench body, a sliding base, a fixing plate and a grinding device; the table body is fixed on the bottom plate through bolts; the sliding base is arranged in the table body in a sliding manner; the upper surface of the sliding base is fixedly connected with a motor; the upper end of a driving shaft of the motor is fixedly connected with a first gear; a plurality of layers of grinding devices which are uniformly arranged are arranged on one circle of the gear; the grinding device comprises a second gear, a spline shaft and a grinding head; a second gear on the layer of grinding device closest to the first gear is always meshed with the first gear; the upper surface of the sliding base is provided with an annular groove; an annular air bag is fixedly connected in the annular groove and is filled in the annular groove; the motor is positioned in the middle of the annular air bag; a collecting tank is arranged on the inner side of the table body; a fixed plate is arranged above the inner part of the table body; the edge of the fixed plate extends into the collecting tank; the fixed plate is positioned above the first gear; the spline shaft is vertically arranged, the lower end of the spline shaft is in contact with the upper surface of the annular air bag, the upper end of the spline shaft penetrates through the fixing plate and is rotatably connected with the fixing plate through a bearing, and the spline shaft can slide up and down in the bearing; the second gear is fixedly sleeved on the surface of the spline shaft and is positioned below the fixed plate; two adjacent gears II on different circumferential layers are meshed with each other, and two adjacent gears II on the same circumferential layer are arranged in a non-contact manner; the grinding head is sleeved at the upper end of the spline shaft and is positioned above the fixing plate; the grinding head is designed to be a rough surface, and the periphery of the grinding head is uniformly and fixedly connected with a grinding plate; the grinding plate is made of elastic rubber materials, and the surface of the grinding plate is designed to be rough; the length of the grinding plate is equal to the distance between two adjacent grinding heads;

when the grinding machine works, particles to be ground are placed in a workbench and positioned on a fixed plate, the workbench is sealed through a sealing device, a motor is started, a first gear installed on a driving shaft of the motor drives a second gear which is meshed with the first gear to rotate, and the second gear drives a spline shaft to rotate so as to drive a grinding head installed at the top end of the spline shaft to start to move; meanwhile, because the gear transmission is adopted, the rotation directions of the spline shafts on different circumference layers are different, so that the rotation directions of the grinding heads are opposite, the grinding effect and the grinding efficiency are improved, meanwhile, because the rotation directions of the grinding heads on the adjacent circumference layers are opposite, the friction force caused by the grinding particles is opposite, so that the grinding particles are disturbed, the grinding effect is improved, meanwhile, because the lower end of the spline shaft in the grinding device is contacted with the annular air bag, the up-and-down shaking of the grinding device in the grinding process is realized through the soft property and the expansion degree of the annular air bag, so that the grinding effect is further improved, the service life of the grinding head can be prolonged, in the rotation and grinding process of the grinding head, through the design of the surface rough surface of the grinding head, the length of the grinding plate and the design of the rough surface of the grinding plate are matched, and because the rotation directions of the grinding heads on the adjacent circumference layers are opposite, the adjacent grinding plates are mutually impacted, therefore, the grinding effect of the grinding particles is further improved by matching the grinding plate with the grinding head, and the production efficiency is improved.

As an embodiment of the invention, the spline shaft is internally provided with a liquid guide hole; the grinding head is fixedly arranged at the upper end of the spline shaft through a set screw; the periphery of the grinding head is provided with liquid spraying holes which are uniformly distributed; the liquid guide hole is communicated with the liquid spraying hole, and an external circulating pump pumps grinding liquid into the liquid spraying hole through the liquid guide hole;

during operation, external circulating pump passes through the hose pump with the lapping liquid and goes into the drain hole in the integral key shaft, the lapping liquid gets into the hydrojet hole through the drain hole in, when the grinding head is rotatory, the lapping liquid is spout from the hydrojet hole, the lapping liquid is thrown away under the centrifugal force effect that produces simultaneously when the grinding head is rotatory, the spray regime of increase lapping liquid, make the heat that grinds the production better take away, effective control grinding temperature, make the machine work for a long time and need not shut down the cooling and maintain, thereby improve grinding efficiency, the hydrojet hole on the grinding head is when spouting the lapping liquid simultaneously, can play the stirring effect to the abrasive grain through the impact of lapping liquid, thereby improve the abrasive grain and be ground the probability, thereby further improve grinding effect.

As an embodiment of the invention, a plurality of first balls are uniformly arranged at the bottom of the sliding base, and the first balls can freely rotate relative to the sliding base; the sliding base can freely slide in the table body; the motor driving shaft is fixedly connected with a cam, and the cam is positioned below the gear; the side surface of the fixed plate is provided with a guide groove, and the section of the guide groove is semicircular; the clamping column comprises a clamping column body, a spring, an extrusion column and a second ball; the clamping column body is fixedly connected in a collecting tank on the inner side of the table body, is vertical to the side wall of the table body and is arranged opposite to the guide groove on the side surface of the fixed plate; the clamping columns are uniformly arranged around the inner wall of the platform body and are not in contact with the inner wall of the platform body; one end of the extrusion column penetrates into the clamping column body, a spring is fixedly connected between the extrusion column and the bottom of the clamping column body, a second ball is mounted at the other end of the extrusion column outside the clamping column body, the second ball can freely rotate relative to the extrusion column, the second ball is arranged in contact with the guide groove, and the spring is always in a compressed state;

when the machine works, the motor runs, the cam fixedly connected on the motor driving shaft rotates along with the motor driving shaft to generate centrifugal force, the centrifugal force generated by the cam enables the motor to start sliding, the motor is fixedly connected on the sliding base, and the fixed plate is connected with the tail end of the motor driving shaft through the bearing, therefore, under the action of the centrifugal force generated by the rotation of the cam, the sliding base and the fixed plate can freely slide in the table body as a whole, and simultaneously, under the action of the centrifugal force, the sliding base and the fixed plate move in the direction opposite to the movement direction of the clamping column to be extruded, under the action of the spring in the clamping column, the movement of the sliding base and the fixed plate is limited within a certain range, after the movement direction of the sliding base and the fixed plate is changed under the action of the centrifugal force, the sliding base and the fixed plate return to the center of the table body under the action of the clamping column, and simultaneously, the ball II at the top end of the extruding column is contacted with the guide groove, the second ball can rotate freely, so that the friction force of the clamping column is greatly reduced when the clamping column is in contact with the fixed plate, and the service life of parts is prolonged; the grinding device is arranged on the fixed plate and moves along with the movement of the fixed plate to further play a role in stirring ground particles by turning over the material under the action of the centrifugal force of the cam, so that the grinding uniformity is improved, the grinding range of the grinding head is enlarged, and the grinding efficiency is improved. Thereby further improving the stirring effect and improving the grinding uniformity of the grinding particles.

As an embodiment of the invention, the cross section of the collecting tank is in a right trapezoid shape and is positioned above the inner side of the table body; the upper surface of the fixed plate is arc-shaped and is used for collecting grinding fluid and grinding particles; during operation, the lapping liquid is thrown away from the grinding head under the centrifugal force effect and is driven the lapping particle after grinding and remove, thereby make lapping liquid and lapping particle enter into the gap in the middle of the grinding head, further improve grinding effect, lapping liquid and lapping particle receive fixed plate arc upper surface influence simultaneously, flow into in the collecting vat on the fixed plate, lapping liquid and lapping particle after the grinding that get into in the collecting vat pass through hose connection to external container, filter after the lapping particle after the grinding that contains in the lapping liquid, by external circulating pump extraction, get into the circulation once more, reduce lapping liquid consumption, resources are saved.

As an embodiment of the invention, a sealing ring is arranged on the part of the upper surface of the fixing plate, which penetrates out of the spline shaft, and the sealing ring wraps the corresponding spline shaft; the spline shaft can slide up and down in the sealing ring; an inflation cavity is arranged in the sealing ring, and the distance between the inflation cavity and the inner wall of the sealing ring is smaller than the distance between the inflation cavity and the outer wall of the sealing ring; when the grinding machine works, a gap between the spline shaft and the fixed plate is sealed through the sealing ring, so that grinding fluid and grinding particles cannot enter the lower part of the fixed plate, the interior of the machine is prevented from being wet after the grinding fluid enters the lower part of the fixed plate, the interior of the machine is rusted after a long time, meanwhile, gears and other parts with high precision requirements are adopted in the machine, and the grinding particles carried in the grinding fluid after the grinding fluid enters the interior of the machine can damage the surfaces of the parts, damage the parts and further influence the service life of the machine; because of the relation of the position of the air filling cavity in the sealing ring, the inner ring of the sealing ring shrinks inwards, so that the sealing ring is tightly attached to the spline shaft, and the sealing effect is improved.

As an embodiment of the present invention, the sealing device includes a cylinder, a pressing plate, and a reinforcing rib; the cylinder is vertically and fixedly connected to the lower surface of the cantilever; the pressing plate is fixedly connected with the air cylinder; the reinforcing ribs are positioned on the upper surface of the pressing plate, so that the strength of the pressing plate is enhanced, and deformation is prevented; the during operation, will treat that the abrasive particle places in the workstation, and be in on the fixed plate, cylinder in the sealing device slowly pushes down, make clamp plate contact work piece upper surface and provide certain pressure, make the clamp plate lower surface closely laminate the upper surface of workstation, thereby effectively seal the workstation, prevent that the lapping liquid from carrying the abrasive particle spill, and the production efficiency is improved, and the resource consumption is reduced, in addition, the strengthening rib that sets up on the clamp plate can be used to increase the intensity of clamp plate, prevent that the clamp plate from taking place to warp after working for a long time, make the contact surface unevenness of clamp plate and workstation, influence sealed effect.

The invention has the following beneficial effects:

1. according to the invention, the motor is started to enable the second gear to rotate, and the second gear drives the spline shaft to rotate so as to drive the grinding head to start to move; meanwhile, because the gear transmission is adopted, the rotation directions of the spline shafts on different circumference layers are different, so that the rotation directions of the grinding heads are opposite, the grinding effect and the grinding efficiency are improved, meanwhile, because the rotation directions of the grinding heads on the adjacent circumference layers are opposite, the friction force caused by the grinding particles is opposite, so that the grinding particles are disturbed, the grinding effect is improved, meanwhile, because the lower end of the spline shaft in the grinding device is contacted with the annular air bag, the up-and-down shaking of the grinding device in the grinding process is realized through the soft property and the expansion degree of the annular air bag, so that the grinding effect is further improved, the service life of the grinding head can be prolonged, in the rotation and grinding process of the grinding head, through the design of the surface rough surface of the grinding head, the length of the grinding plate and the design of the rough surface of the grinding plate are matched, and because the rotation directions of the grinding heads on the adjacent circumference layers are opposite, the adjacent grinding plates are mutually impacted, therefore, the grinding effect of the grinding particles is further improved by matching the grinding plate with the grinding head, and the production efficiency is improved.

2. The external circulating pump pumps grinding fluid into the fluid guide hole in the spline shaft through the hose, the grinding fluid enters the fluid spray hole through the fluid guide hole, the grinding fluid is sprayed out of the fluid spray hole while the grinding head rotates, and the grinding fluid is thrown out under the action of centrifugal force generated when the grinding head rotates, so that the spraying range of the grinding fluid is enlarged, heat generated by grinding is better taken away, the grinding temperature is effectively controlled, the machine can work for a long time without stopping, cooling and finishing are not needed, the grinding efficiency is improved, meanwhile, when the grinding fluid is sprayed out from the fluid spray hole on the grinding head, the stirring effect on grinding particles can be achieved through the impact of the grinding fluid, the grinding probability of the grinding particles is improved, and the grinding effect is further improved.

3. According to the invention, the grinding fluid is thrown out of the grinding head under the action of centrifugal force to drive the ground grinding particles to move, so that the grinding fluid and the ground grinding particles enter a middle gap of the grinding head, the grinding effect is further improved, meanwhile, the grinding fluid and the ground grinding particles are influenced by the arc-shaped upper surface of the fixing plate, flow into the collecting tank from the fixing plate, are connected into an external container through the hose, and are extracted by the external circulating pump after being filtered out of the ground grinding particles contained in the grinding fluid, and then enter the circulation again, so that the consumption of the grinding fluid is reduced, and resources are saved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the table of the present invention;

FIG. 3 is a cross-sectional view of the grinding apparatus of the present invention;

FIG. 4 is a cross-sectional view of the cartridge of the present invention;

in the figure: the device comprises a machine body 1, a bottom plate 11, a support column 12, a cantilever 13, a sealing device 2, an air cylinder 21, a pressure plate 22, a reinforcing rib 23, a workbench 3, a table body 31, a collecting groove 311, a sliding base 32, a first ball 321, an annular groove 322, an annular air bag 323, a motor 324, a first gear 325, a cam 326, a fixing plate 33, a guide groove 331, a clamping column 4, a clamping column body 41, a spring 42, an extrusion column 43, a second ball 44, a grinding device 34, a second gear 341, a spline shaft 5, a liquid guide hole 51, a sealing ring 6, an inflation cavity 61, a grinding head 7, a liquid spraying hole 71 and a set screw 72.

Detailed Description

A grinding machine according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.

As shown in fig. 1 to 4, a grinding machine according to the present invention includes a machine body 1, a sealing device 2, and a table 3; the machine body 1 comprises a bottom plate 11, a support column 12 and a cantilever 13; the supporting column 12 is fixedly connected to the surface of the bottom plate 11; the cantilever 13 is fixedly connected to the upper end of the support column 12; the sealing device 2 is arranged on the lower surface of the tail end of the cantilever 13; the workbench 3 is fixedly connected to the upper surface of the bottom plate 11, and the workbench 3 is positioned below the sealing device 2;

the workbench 3 comprises a workbench body 31, a sliding base 32, a fixed plate 33 and a grinding device 34; the table body 31 is fixed on the bottom plate 11 through bolts; the sliding base 32 is slidably mounted inside the table body 31; the upper surface of the sliding base 32 is fixedly connected with a motor 324; the upper end of a driving shaft of the motor 324 is fixedly connected with a first gear 325; a plurality of layers of grinding devices 34 which are uniformly arranged are arranged around the first gear 325; the grinding device 34 comprises a second gear 341, a spline shaft 5 and a grinding head 7; the second gear 341 on the layer of grinding devices 34 closest to the first gear 325 is always meshed with the first gear 325; an annular groove 322 is formed in the upper surface of the sliding base 32; an annular air bag 323 is fixedly connected in the annular groove 322, and the annular air bag 323 is filled in the annular groove 322; the motor 324 is positioned in the middle of the annular air bag 323; a collecting tank 311 is arranged on the inner side of the table body 31; a fixed plate 33 is arranged above the inner part of the table body 31; the edge of the fixing plate 33 extends into the collecting tank 311; the fixed plate 33 is positioned above the first gear 325; the spline shaft 5 is vertically arranged, the lower end of the spline shaft 5 is in contact with the upper surface of the annular air bag 323, the upper end of the spline shaft 5 penetrates through the fixing plate 33 and is rotatably connected with the fixing plate 33 through a bearing, and the spline shaft 5 can slide up and down in the bearing; the second gear 341 is fixedly sleeved on the surface of the spline shaft 5, and the second gear 341 is positioned below the fixed plate 33; two adjacent gears 341 on different circumferential layers are meshed with each other, and two adjacent gears 341 on the same circumferential layer are not in contact with each other; the grinding head 7 is sleeved at the upper end of the spline shaft 5, and the grinding head 7 is positioned above the fixing plate 33; the surface of the grinding head 7 is designed to be a rough surface, and the periphery of the grinding head 7 is uniformly and fixedly connected with a grinding plate 73; the grinding plate 73 is made of elastic rubber material, and the surface of the grinding plate 73 is designed to be rough; the length of the grinding plate 73 is equal to the distance between two adjacent grinding heads 7;

when the grinding machine works, particles to be ground are placed in the workbench 3 and are positioned on the fixing plate 33, the workbench 3 is sealed through the sealing device 2, the motor 324 is started, the first gear 325 arranged on the driving shaft of the motor drives the second gear 341 which is meshed with the first gear to rotate, the second gear 341 drives the spline shaft 5 to rotate, and then the grinding head 7 arranged at the top end of the spline shaft 5 is driven to start to move; meanwhile, as the gear transmission is adopted, the rotation directions of the spline shafts 5 of different circumference layers are different, so that the rotation directions of the grinding head 7 are opposite, thereby improving the grinding effect and the grinding efficiency, meanwhile, as the rotation directions of the grinding heads 7 on adjacent circumferences are opposite, the friction force caused by grinding particles is opposite, thereby disturbing the grinding particles and improving the grinding effect, meanwhile, as the lower end of the spline shaft 5 in the grinding device 34 is contacted with the annular air bag 323, through the softness and the expansion degree of the annular air bag 323, the vertical shaking in the grinding process of the grinding device 34 is realized, thereby further improving the grinding effect and simultaneously prolonging the service life of the grinding head, in the rotation grinding process of the grinding head 7, through the design of the surface rough surface of the grinding head 7, the length of the grinding plate 73 and the design of the rough surface of the grinding plate 73 are matched, and simultaneously, as the rotation directions of the grinding heads on the adjacent circumferences are opposite, the adjacent polishing plates 73 are made to collide with each other, whereby the polishing effect of the polishing particles is further improved by the polishing plates 73 being fitted to the polishing head 7, and the production efficiency is improved.

In one embodiment of the present invention, the spline shaft 5 has a liquid guide hole 51 formed therein; the grinding head 7 is fixedly arranged at the upper end of the spline shaft 5 through a set screw 72; the periphery of the grinding head 7 is provided with liquid spraying holes 71 which are uniformly distributed; the liquid guide hole 51 is communicated with the liquid spraying hole 71, and an external circulating pump pumps grinding liquid into the liquid spraying hole 71 through the liquid guide hole 51;

during operation, external circulating pump passes through the hose pump with the lapping liquid and goes into in the drain hole 51 of integral key shaft 5, the lapping liquid gets into in the hydrojet hole 71 through drain hole 51, when grinding head 7 is rotatory, the lapping liquid is spout from hydrojet hole 71, the lapping liquid is thrown away under the centrifugal force effect that produces when grinding head 7 is rotatory simultaneously, increase the spraying range of lapping liquid, make the heat that grinds the production better take away, effective control grinding temperature, make the machine work for a long time and need not shut down the cooling and maintain, thereby improve grinding efficiency, the hydrojet hole 71 on grinding head 7 is when the blowout lapping liquid simultaneously, can play the stirring effect to the abrasive grain through the impact of lapping liquid, thereby improve the abrasive grain and be ground the probability, thereby further improve grinding effect.

As an embodiment of the present invention, a plurality of balls first 321 are uniformly installed at the bottom of the slide base 32, and the balls first 321 can freely rotate relative to the slide base 32; the slide base 32 is made to slide freely in the table body 31; a cam 326 is fixedly connected to a driving shaft of the motor 324, and the cam 326 is positioned below the first gear 325; a guide groove 331 is formed in the side surface of the fixing plate 33, and the section of the guide groove 331 is semicircular; the clamping column 4 comprises a clamping column body 41, a spring 42, a pressing column 43 and a second ball 44; the clamping column 41 is fixedly connected in a collecting groove 311 on the inner side of the table body 31, is vertical to the side wall of the table body 31 and is arranged opposite to a guide groove 331 on the side surface of the fixing plate 33; the clamping columns 4 are uniformly arranged around the inner wall of the table body 31 in a non-contact manner; one end of the extrusion column 43 penetrates into the clamping column body 41, and a spring 42 is fixedly connected between the extrusion column 43 and the bottom of the clamping column body 41, a second ball 44 is mounted at the other end of the extrusion column 43 outside the clamping column body 41, the second ball 44 can freely rotate relative to the extrusion column 43, the second ball 44 is arranged in contact with the guide groove 331, and the spring 42 is always in a compressed state;

when the table works, the motor 324 runs, the cam 326 fixed on the motor driving shaft rotates along with the motor and generates centrifugal force, the centrifugal force generated by the cam 326 enables the motor 324 to start sliding, because the motor 324 is fixed on the sliding base 32, and the fixed plate 33 is connected with the tail end of the motor driving shaft through the bearing, therefore, under the action of the centrifugal force generated by the rotation of the cam 326, the sliding base 32 and the fixed plate 33 as a whole slide freely in the table body 31, and simultaneously, under the action of the centrifugal force, the sliding base 32 and the fixed plate 33 move away from the central direction of the table body 31, the clamping column 4 in the direction opposite to the movement of the sliding base 32 and the fixed plate 33 is extruded, under the action of the spring 42 in the clamping column 4, the movement of the sliding base 32 and the fixed plate 33 is limited within a certain range, when the movement direction of the sliding base 32 and the fixed plate 33 under the action of the centrifugal force is changed, the sliding base 32 and the fixed plate 33 return to the central direction of the table body 31 under the action of the clamping column 4, meanwhile, the second ball 44 at the top end of the extrusion column 43 is in contact with the guide groove 331, and the second ball 44 can freely rotate, so that the friction force of the clamping column 4 is greatly reduced when the clamping column is in contact with the fixed plate 44, and the service life of parts is prolonged; as the work proceeds, under the centrifugal force of the cam 326, the sliding base 32 and the fixed plate 33 move repeatedly, when the fixed plate 33 moves, the grinding devices 34 mounted on the fixed plate 33 move along with the fixed plate 33, and further perform the stirring function for the ground particles, thereby improving the grinding uniformity, and simultaneously increasing the grinding range of the grinding head 7, and improving the grinding efficiency, furthermore, the movement of the grinding devices 34 as a whole will make different grinding heads 7 touch the ground particles with different particle sizes, when a certain grinding device 7 touches larger particles during the movement, the annular air bag 323 is pressed downwards, the pressure of the annular air bag 323 is increased, and further the force of the other grinding devices 34 being pushed up by the annular air bag 323 is increased, thereby increasing the frequency of the up-and-down movement of the grinding head, further improving the grinding effect and the grinding uniformity, and simultaneously during the up-and-down movement of the grinding head 7, the grinding plate 73 is driven to move up and down, so that the material turning effect is further improved, and the grinding uniformity of grinding particles is improved.

As an embodiment of the present invention, the collecting trough 311 has a right trapezoid cross section and is located above the inner side of the table body 31; the upper surface of the fixed plate 33 is arc-shaped and is used for collecting grinding fluid and grinding particles; during operation, the lapping liquid is thrown away from grinding head 7 under the centrifugal force effect and is driven the lapping particle after grinding to remove, thereby make lapping liquid and lapping particle enter into the gap in the middle of the grinding head 7, further improve grinding effect, lapping liquid and lapping particle receive fixed plate 33 arc upper surface influence simultaneously, flow into in collecting vat 311 from fixed plate 33, the lapping liquid that gets into in collecting vat 311 and the lapping particle after the grinding pass through hose connection to external container, filter after the lapping particle after the grinding that contains in the lapping liquid, by external circulating pump extraction, in the reentrant circulation, reduce lapping liquid consumption, resources are saved.

As an embodiment of the present invention, a sealing ring 6 is disposed on a portion of the upper surface of the fixing plate 33, which penetrates through the spline shaft 5, and the sealing ring 6 wraps the corresponding spline shaft 5; the spline shaft 5 can slide up and down in the sealing ring 6; an inflation cavity 61 is arranged inside the sealing ring 6, and the distance between the inflation cavity 61 and the inner wall of the sealing ring 6 is smaller than the distance between the inflation cavity 61 and the outer wall of the sealing ring 6; when the automatic grinding machine works, a gap between the spline shaft 5 and the fixed plate 33 is sealed through the sealing ring 6, so that grinding fluid and grinding particles cannot enter the lower part of the fixed plate 33, the interior of the machine is prevented from being wet after the grinding fluid enters the lower part of the fixed plate 33, the interior of the machine is rusted after a long time, meanwhile, parts such as gears with high precision requirements are adopted in the machine, and the grinding particles carried in the grinding fluid after the grinding fluid enters the interior of the machine can damage the surfaces of the parts, cause the damage of the parts and further influence the service life of the machine; because of the position relation of the air filling cavity 61 in the sealing ring 6, the inner ring of the sealing ring 6 shrinks inwards, so that the sealing ring 6 is tightly attached to the spline shaft 5, and the sealing effect is improved.

As an embodiment of the present invention, the sealing device 2 includes a cylinder 21, a pressure plate 22, and a reinforcing rib 23; the cylinder 21 is vertically and fixedly connected to the lower surface of the cantilever 13; the pressure plate 22 is fixedly connected with the air cylinder 21; the reinforcing ribs 23 are positioned on the upper surface of the pressing plate 22, so that the strength of the pressing plate 22 is enhanced, and deformation is prevented; the during operation, will treat that the abrasive particle places in workstation 3, and be in on fixed plate 33, cylinder 21 in sealing device 2 slowly pushes down, make clamp plate 22 contact work piece upper surface and provide certain pressure, make the clamp plate 22 lower surface closely laminate the upper surface of workstation 3, thereby effectively seal workstation 3, prevent that the lapping liquid from carrying the abrasive particle spill, and the production efficiency is improved, and resource consumption is reduced, in addition, the strengthening rib 23 that sets up on the clamp plate 22 can be used to increase clamp plate 22's intensity, prevent that clamp plate 22 from taking place to warp after working for a long time, make clamp plate 22 and workstation 3's contact surface unevenness, influence sealed effect.

The specific working process is as follows:

placing the particles to be ground in the workbench 3 and on the fixing plate 33, sealing the workbench 3 through the sealing device 2, starting the motor 324, driving the gear I325 arranged on the driving shaft of the motor to drive the gear II 341 which is meshed with the gear I to rotate, driving the spline shaft 5 to rotate by the gear II 341, and further driving the grinding head 7 arranged at the top end of the spline shaft 5 to start to move; meanwhile, as the gear transmission is adopted, the rotation directions of the spline shafts 5 of different circumferential layers are different, so that the rotation directions of the grinding head 7 are opposite, the lower end of the spline shaft 5 in the grinding device 34 is in contact with the annular air bag 323, the up-and-down shaking in the grinding process of the grinding device 34 is realized through the softness and the expansion degree of the annular air bag 323, meanwhile, the rotation directions of the grinding heads on the adjacent circumferential layers are opposite, so that the adjacent grinding plates 73 are impacted with each other, the grinding liquid is pumped into the liquid guide hole 51 in the spline shaft 5 through the hose by the external circulating pump, the grinding liquid enters the liquid spraying hole 71 through the liquid guide hole 51, the grinding liquid is sprayed out from the liquid spraying hole 71 while the grinding head 7 rotates, meanwhile, the grinding liquid is thrown out under the action of centrifugal force generated when the grinding head 7 rotates, and the grinding liquid can have the material turning effect on grinding particles through the impact of the grinding liquid when the liquid spraying hole 71 on the grinding head 7 sprays out the grinding liquid, the motor 324 is operated, the cam 326 fixed on the motor driving shaft rotates along with the motor driving shaft and generates centrifugal force, the centrifugal force generated by the cam 326 makes the motor 324 start to slide, because the motor 324 is fixed on the sliding base 32, and the fixed plate 33 is connected with the end of the motor driving shaft through the bearing, therefore, under the action of the centrifugal force generated by the rotation of the cam 326, the sliding base 32 and the fixed plate 33 as a whole slide freely in the table body 31, and at the same time, when the sliding base 32 and the fixed plate 33 move away from the center direction of the table body 31 under the action of the centrifugal force, the clamping column 4 in the direction opposite to the movement of the sliding base 32 and the fixed plate 33 is extruded, under the action of the spring 42 in the clamping column 4, the movement of the sliding base 32 and the fixed plate 33 is limited within a certain range, and when the movement direction of the sliding base 32 and the fixed plate 33 is changed under the action of the centrifugal force, the sliding base 32 and the fixed plate 33 will return to the center of the table body 31 under the action of the clamping column 4, meanwhile, the second balls 44 at the top end of the extrusion column 43 contact the guide grooves 331, and move with the operation, under the centrifugal force of the cam 326, the sliding base 32 and the fixing plate 33 move repeatedly, when the fixing plate 33 moves, the grinding device 34 mounted on the fixing plate 33 moves therewith, so that the movement of the grinding device 34 as a whole causes different grinding heads 7 to touch grinding particles with different particle sizes, when a certain grinding device 7 touches larger particles during movement, the annular air bag 323 is pressed downwards, the pressure of the annular air bag 323 is increased, and the force of the other grinding devices 34 pushed up by the annular air bag 323 is increased, thereby increasing the frequency of the up-and-down movement of the grinding head, when the grinding head 7 moves up and down, the grinding plate 73 is driven to move up and down, the grinding fluid is thrown out from the grinding head 7 under the centrifugal force to drive the ground grinding particles to move, thereby causing the grinding fluid and the grinding particles to enter the middle gap of the grinding head 7, simultaneously lapping liquid and abrasive particles receive fixed plate 33 arc upper surface influence, flow into in the collecting vat 311 from fixed plate 33, the lapping liquid that gets into in the collecting vat 311 and the abrasive particles after the grinding pass through hose connection to external container in, filter after the abrasive particles after the grinding that contains in the lapping liquid, by external circulating pump extraction, in the reentrant circulation, will treat that the abrasive particles places in workstation 3, and be in on fixed plate 33, cylinder 21 in sealing device 2 slowly pushes down, make clamp plate 22 contact work piece upper surface and provide certain pressure, make clamp plate 22 lower surface closely laminate the upper surface of workstation 3, thereby effectively seal up workstation 3.

In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A grinding machine comprises a machine body (1), a sealing device (2) and a working table (3); the method is characterized in that: the machine body (1) comprises a bottom plate (11), a supporting column (12) and a cantilever (13); the supporting columns (12) are fixedly connected to the surface of the bottom plate (11); the cantilever (13) is fixedly connected to the upper end of the support column (12); the sealing device (2) is arranged on the lower surface of the tail end of the cantilever (13); the workbench (3) is fixedly connected to the upper surface of the bottom plate (11), and the workbench (3) is positioned below the sealing device (2);

the workbench (3) comprises a workbench body (31), a sliding base (32), a fixing plate (33) and a grinding device (34); the table body (31) is fixed on the bottom plate (11) through bolts; the sliding base (32) is installed inside the table body (31) in a sliding mode; the upper surface of the sliding base (32) is fixedly connected with a motor (324); the upper end of a driving shaft of the motor (324) is fixedly connected with a first gear (325); the periphery of the first gear (325) is provided with a plurality of layers of grinding devices (34) which are uniformly arranged; the grinding device (34) comprises a second gear (341), a spline shaft (5) and a grinding head (7); a second gear (341) on the layer of grinding devices (34) closest to the first gear (325) is always meshed with the first gear (325); an annular groove (322) is formed in the upper surface of the sliding base (32); an annular air bag (323) is fixedly connected in the annular groove (322), and the annular air bag (323) is filled in the annular groove (322); the motor (324) is positioned in the middle of the annular air bag (323); a collecting groove (311) is arranged on the inner side of the table body (31); a fixed plate (33) is arranged above the inner part of the table body (31); the edge of the fixing plate (33) extends into the collecting tank (311); the fixed plate (33) is positioned above the first gear (325); the spline shaft (5) is vertically arranged, the lower end of the spline shaft is in contact with the upper surface of the annular air bag (323), the upper end of the spline shaft (5) penetrates through the fixing plate (33) and is rotatably connected with the fixing plate (33) through a bearing, and the spline shaft (5) can slide up and down in the bearing; the second gear (341) is fixedly sleeved on the surface of the spline shaft (5), and the second gear (341) is positioned below the fixing plate (33); two adjacent gears II (341) on different circumference layers are meshed with each other, and the two adjacent gears II (341) on the same circumference layer are not in contact arrangement; the grinding head (7) is sleeved at the upper end of the spline shaft (5), and the grinding head (7) is positioned above the fixing plate (33); the surface of the grinding head (7) is designed to be a rough surface, and the periphery of the grinding head (7) is uniformly and fixedly connected with a grinding plate (73); the grinding plate (73) is made of elastic rubber materials, and the surface of the grinding plate (73) is designed to be rough; the length of the grinding plate (73) is equal to the distance between two adjacent grinding heads (7).

2. A grinding mill according to claim 1, characterized in that: a liquid guide hole (51) is formed in the spline shaft (5); the grinding head (7) is fixedly arranged at the upper end of the spline shaft (5) through a set screw (72); the periphery of the grinding head (7) is provided with liquid spraying holes (71) which are uniformly distributed; the liquid guide holes (51) are communicated with the liquid spraying holes (71), and the external circulating pump pumps grinding liquid into the liquid spraying holes (71) through the liquid guide holes (51).

3. A grinding mill according to claim 1, characterized in that: a plurality of first rolling balls (321) are uniformly arranged at the bottom of the sliding base (32), and the first rolling balls (321) can freely rotate relative to the sliding base (32); the sliding base (32) can freely slide in the table body (31); a cam (326) is fixedly connected to a driving shaft of the motor (324), and the cam (326) is positioned below the first gear (325); a guide groove (331) is formed in the side face of the fixing plate (33), and the section of the guide groove (331) is semicircular; the clamping column (4) comprises a clamping column body (41), a spring (42), an extrusion column (43) and a second ball (44); the clamping column body (41) is fixedly connected in a collecting groove (311) on the inner side of the table body (31), is vertical to the side wall of the table body (31) and is arranged opposite to a guide groove (331) on the side surface of the fixing plate (33); the clamping columns (4) are uniformly arranged around the inner wall of the table body (31) in a non-contact manner; one end of the extrusion column (43) penetrates into the clamping column body (41) and is fixedly connected with the spring (42) between the bottom of the clamping column body (41), the other end of the extrusion column (43) is provided with a second ball (44) outside the clamping column body (41), the second ball (44) can rotate freely relative to the extrusion column (43), the second ball (44) is in contact with the guide groove (331), and the spring (42) is always in a compression state.

4. A grinding mill according to claim 1, characterized in that: the section of the collecting groove (311) is in a right trapezoid shape and is positioned above the inner side of the table body (31); the upper surface of the fixing plate (33) is arc-shaped and is used for collecting grinding fluid and grinding particles.

5. A grinding mill according to claim 1, characterized in that: a sealing ring (6) is arranged on the part, penetrating out of the spline shaft (5), of the upper surface of the fixing plate (33), and the corresponding spline shaft (5) is wrapped by the sealing ring (6); the spline shaft (5) can slide up and down in the sealing ring (6); the sealing ring (6) is internally provided with an inflation cavity (61), and the distance between the inflation cavity (61) and the inner wall of the sealing ring (6) is smaller than the distance between the inflation cavity (61) and the outer wall of the sealing ring (6).

6. A grinding mill according to claim 1, characterized in that: the sealing device (2) comprises a cylinder (21), a pressure plate (22) and reinforcing ribs (23); the cylinder (21) is vertically and fixedly connected to the lower surface of the cantilever (13); the pressing plate (22) is fixedly connected with the air cylinder (21); the reinforcing ribs (23) are positioned on the upper surface of the pressing plate (22) to reinforce the strength of the pressing plate (22) and prevent deformation.