CN112318282A

CN112318282A - High-reliability polishing equipment

Info

Publication number: CN112318282A
Application number: CN202011077335.5A
Authority: CN
Inventors: 姜学敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-02-05

Abstract

The invention relates to a polishing device with high reliability, which comprises a top plate, a base, a workbench, a lifting plate, a motor, a grinding disc, a first bearing, two support columns, two cylinders, a cleaning mechanism and two fixing mechanisms, wherein the cleaning mechanism comprises a transmission assembly and two cleaning assemblies, each cleaning assembly comprises an air cylinder, a piston, an air rod, a sliding block, a connecting rod, a connecting rope, a connecting block, a supporting shaft, a nozzle, a torsion spring, a first connecting pipe, a second connecting pipe and a fixing pipe, each fixing mechanism comprises a fixing plate, a fixing column, an iron rod, an electromagnet, a first spring and a control assembly, the polishing device with high reliability blows air to a workpiece through the cleaning mechanism, so that scraps generated during polishing can not remain on the surface of the workpiece, subsequent cleaning of a worker is not needed, and the function of fixing the position of the workpiece is realized through the fixing mechanism, the grinding precision is prevented from being influenced by the position deviation of the workpiece.

Description

High-reliability polishing equipment

Technical Field

The invention relates to the field of aluminum product processing equipment, in particular to polishing equipment with high reliability.

Background

A grinding machine is a machine tool that grinds the surface of a workpiece using a grinding tool. Most grinding machines perform grinding using a grinding wheel rotating at a high speed, and a few grinding machines perform grinding using oilstones, sanding belts and other grinders and free abrasives, such as honing machines, superfinishing machines, sanding belt grinders, grinding machines, polishing machines, and the like.

When polishing, the generated fragments are easily covered on the surface of a workpiece by the conventional polishing equipment, so that a worker is required to perform subsequent cleaning work on the workpiece, the work load is increased, the practicability of the conventional polishing equipment is reduced, and moreover, when polishing is performed by the conventional polishing equipment, the position of the workpiece is easily deviated, so that the polishing work is influenced, the polishing quality is reduced, and the reliability of the conventional polishing equipment is greatly reduced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the grinding equipment with high reliability is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a polishing device with high reliability comprises a top plate, a base, a workbench, a lifting plate, a motor, a grinding disc, a first bearing, two support columns and two cylinders, wherein the two support columns are respectively fixed at two sides above the base, two sides of the top plate are respectively fixedly connected with the two support columns, cylinder bodies of the cylinders are vertically fixed at two sides above the top plate, the top plate is provided with two through holes, the cylinders are in one-to-one correspondence with the through holes, air rods of the cylinders penetrate through the through holes to be fixedly connected with the lifting plate, the motor is fixed above the lifting plate, the lifting plate is provided with round holes, outer rings of the first bearing are fixedly connected with the inner walls of the round holes, output shafts of the motor penetrate through the round holes to be fixedly connected with the grinding disc, the output shafts of the motor are fixedly connected with inner rings of the first bearing, the workbench is fixed above the base, the cleaning mechanism is arranged on the lifting plate, the two fixing mechanisms are respectively arranged on two sides of the workbench, and the cleaning mechanism is connected with the fixing mechanisms;

the cleaning mechanism comprises a transmission assembly and two cleaning assemblies, the transmission assembly is connected with an output shaft of the motor, the two cleaning assemblies are respectively arranged on two sides below the lifting plate, the transmission assembly is connected with the cleaning assemblies, the cleaning assemblies correspond to the fixing mechanisms one by one, and the cleaning assemblies are connected with the fixing mechanisms;

the cleaning assembly comprises an air cylinder, a piston, an air rod, a sliding block, a connecting rod, a connecting rope, a connecting block, a supporting shaft, a nozzle, a torsion spring, a first connecting pipe, a second connecting pipe and a fixed pipe, the air cylinder is fixed below the lifting plate, the piston is arranged inside the air cylinder, the piston is hermetically connected with the inner wall of the air cylinder, the fixed pipes correspond to the supporting columns one by one, the fixed pipes are fixed on the supporting columns, the air cylinder is communicated with one end of the fixed pipes through the first connecting pipe, the other end of the fixed pipes is connected with a fixing mechanism, one end of the supporting shaft is fixed below the air cylinder, the other end of the supporting shaft is hinged with the nozzle, the nozzle is communicated with the second connecting pipe, the torsion spring is arranged at the connecting position of the nozzle and the supporting shaft, the two ends of the torsion spring are respectively connected with the supporting shaft and the nozzle, one end of, an opening is formed in one side, close to the output shaft of the motor, of the inflator, the other end of the air rod penetrates through the opening to be hinged to the sliding block, the connecting rod is L-shaped, one end of the connecting rod is connected with the transmission assembly, the other end of the connecting rod is fixedly connected with the connecting block, the sliding block is sleeved on the connecting rod, and two ends of the connecting rope are fixedly connected with the connecting block and the nozzle respectively;

the fixing mechanism comprises a fixing plate, a fixing column, an iron rod, an electromagnet, a first spring and a control assembly, the fixing column is vertically fixed above the base, a blind hole is formed in the fixing column, one end of the iron rod is fixedly connected with the fixing plate, the other end of the iron rod is arranged inside the blind hole, the iron rod is matched with the blind hole, the iron rod is in sliding connection with the blind hole, the electromagnet is fixed at the bottom in the blind hole, two ends of the first spring are respectively connected with the other end of the iron rod and the bottom in the blind hole, the electromagnet is electrically connected with the PLC, and the control assembly is connected with one end, far away from the first connecting pipe, of the fixing pipe;

the control assembly comprises a fixing ring, a moving plate, a support, a ball screw bearing, a screw rod, a second bearing, a control unit, two limiting rings and two second springs, the second bearing is fixed above the base, the screw rod is fixedly connected with an inner ring of the second bearing, the ball screw bearing is sleeved on the screw rod, a screw thread matched with the screw rod is arranged at the joint of the ball screw bearing and the screw rod, the fixing ring is fixed on the inner wall of the fixing tube, the moving plate is matched with an annular hole of the fixing ring, the moving plate is matched with the inner wall of the annular hole of the fixing ring, the support is U-shaped, two ends of the support are fixedly connected with the lower part of the moving plate, a through hole is arranged on the support, the outer ring of the ball screw bearing is fixedly connected with the inner wall of the through hole, the limiting rings are fixed on the inner wall of the fixing ring, and, the limiting rings correspond to the second springs one by one, and two ends of each second spring are respectively connected with the lower part of the moving plate and the upper part of the limiting ring;

the control unit comprises a trigger switch, a control panel, a fixing rod and two third springs, the fixing rod is U-shaped, the two ends of the fixing rod are fixedly connected with the lead screw, small holes are formed in the two ends of the control panel, the two ends of the fixing rod penetrate through the two small holes respectively, the fixing rod is matched with the small holes, the trigger switch is fixed on the fixing rod, the two third springs are arranged at the two ends of the fixing rod respectively, and the two ends of the third springs are connected with the control panel and the lead screw respectively.

As preferred, in order to drive the piston and remove, transmission assembly includes drive gear and two coupling unit, drive gear fixes on the output shaft of motor, be equipped with two pilot holes on the lifter plate, pilot hole and coupling unit one-to-one, coupling unit is including connecting gear, connecting axle and third bearing, the third bearing is fixed on the lifter plate, the inner circle fixed connection of connecting axle and third bearing, the one end of connecting axle with be connected gear fixed connection, connecting gear and drive gear meshing, the one end fixed connection of keeping away from the connecting block of pilot hole and connecting rod is passed to the other end of connecting axle.

Preferably, the transmission gear is coated with grease in order to make the connecting gear smoothly rotate.

Preferably, in order to reduce the probability of damage to the trigger switch, a rubber pad is fixed on one side of the control plate, which is close to the trigger switch, and the rubber pad is arranged opposite to the trigger switch.

Preferably, in order to prolong the service life of the connecting rope, the connecting rope is made of nylon.

Preferably, to avoid corrosion of the lead screw, the lead screw is coated with an anti-corrosion zinc coating.

Preferably, in order to increase the friction force, the side of the fixing plate close to the workbench is provided with anti-slip threads.

Preferably, the first connecting pipe and the second connecting pipe are both shaped as bellows in order to facilitate the up-and-down movement of the gas cylinder and the swing of the nozzle.

Preferably, in order to limit the moving direction of the iron rod, the cross-sectional shape of the blind hole is square.

Preferably, the motor is a servo motor for precise and stable operation of the motor.

The polishing equipment with high reliability has the advantages that the nozzle blows air to the workpiece through the cleaning mechanism, so that scraps generated during polishing can not remain on the surface of the workpiece, subsequent cleaning of workers is not needed, the practicability of the equipment is improved, compared with the existing cleaning mechanism, the cleaning mechanism can also drive the nozzle to swing back and forth, the air blowing range of the nozzle is expanded, the cleaning effect is improved, the function of fixing the position of the workpiece is realized through the fixing mechanism, the polishing precision is prevented from being influenced by the position deviation of the workpiece, the reliability of the equipment is improved, compared with the existing fixing mechanism, the fixing mechanism and the cleaning mechanism are integrated into a linkage mechanism, the fixing function can be realized while cleaning is realized, and the practicability is higher.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a highly reliable grinding apparatus of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic diagram of the control assembly of the high reliability grinding apparatus of the present invention;

FIG. 4 is a schematic structural view of a cleaning mechanism of the highly reliable grinding apparatus of the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4;

in the figure: 1. the automatic grinding machine comprises a base, 2. a support, 3. a top plate, 4. a workbench, 5. a cylinder, 6. a lifting plate, 7. a motor, 8. a grinding disc, 9. a transmission gear, 10. a connecting gear, 11. a connecting shaft, 12. a connecting rod, 13. a sliding block, 14. an air rod, 15. a piston, 16. an air cylinder, 17. a first connecting pipe, 18. a fixed pipe, 19. a second connecting pipe, 20. a nozzle, 21. a torsion spring, 22. a connecting rope, 23. a connecting block, 24. a fixed ring, 25. a movable plate, 26. a second spring, 27. a limiting ring, 28. a bracket, 29. a ball screw bearing, 30. a screw rod, 31. a fixed rod, 32. a trigger switch, 33. a control plate, 34. a third spring, 35. a rubber pad, 36. a fixed rod, 37. an electromagnet, 38. a first spring, 39. an iron rod and 40.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in figure 1, the polishing device with high reliability comprises a top plate 3, a base 1, a workbench 4, a lifting plate 6, a motor 7, a grinding disc 8, a first bearing, two supporting columns 2 and two air cylinders 5, wherein the two supporting columns 2 are respectively fixed on two sides above the base 1, two sides of the top plate 3 are respectively fixedly connected with the two supporting columns 2, cylinder bodies of the air cylinders 5 are vertically fixed on two sides above the top plate 3, the top plate 3 is provided with two through holes, the air cylinders 5 correspond to the through holes one by one, air rods 14 of the air cylinders 5 penetrate through the through holes to be fixedly connected with the lifting plate 6, the motor 7 is fixed above the lifting plate 6, the lifting plate 6 is provided with a round hole, an outer ring of the first bearing is fixedly connected with an inner wall of the round hole, an output shaft of the motor 7 penetrates through the round hole to be fixedly connected with the grinding disc 8, and an output shaft of the motor 7, the workbench 4 is fixed above the base 1, the PLC is arranged inside the base 1, the cleaning mechanism is arranged on the lifting plate 6, the two fixing mechanisms are respectively arranged on two sides of the workbench 4, and the cleaning mechanism is connected with the fixing mechanisms;

PLCs, i.e., programmable logic controllers, are generally used for the processing of data and the receipt and output of instructions for central control. When the grinding machine is used for grinding, the control cylinder 5 is started, the air rod 14 is extended to drive the lifting plate 6 to move downwards, so that the grinding disc 8 is abutted to a workpiece on the workbench 4, the motor 7 is controlled to be started again, the grinding disc 8 rotates, and the grinding disc 8 is used for grinding the workpiece.

This equipment of polishing that reliability is high is through clean mechanism for nozzle 20 blows to the work piece, makes the piece that produces when polishing can not remain on the work piece surface, thereby need not staff's follow-up clearance, thereby has improved the practicality of equipment, through fixed establishment, realizes the function of fixed work piece position, avoids work piece offset and influences the precision of polishing, thereby has improved the reliability of equipment.

As shown in fig. 4-5, the cleaning mechanism includes a transmission assembly and two cleaning assemblies, the transmission assembly is connected with an output shaft of the motor 7, the two cleaning assemblies are respectively arranged at two sides below the lifting plate 6, the transmission assembly is connected with the cleaning assemblies, the cleaning assemblies are in one-to-one correspondence with the fixing mechanism, and the cleaning assemblies are connected with the fixing mechanism;

the cleaning assembly comprises an air cylinder 16, a piston 15, an air rod 14, a sliding block 13, a connecting rod 12, a connecting rope 22, a connecting block 23, a supporting shaft, a nozzle 20, a torsion spring 21, a first connecting pipe 17, a second connecting pipe 19 and a fixed pipe 18, the air cylinder 16 is fixed below the lifting plate 6, the piston 15 is arranged inside the air cylinder 16, the piston 15 is hermetically connected with the inner wall of the air cylinder 16, the fixed pipes 18 correspond to the supporting columns 2 one to one, the fixed pipes 18 are fixed on the supporting columns 2, the air cylinder 16 is communicated with one end of the fixed pipe 18 through the first connecting pipe 17, the other end of the fixed pipe 18 is connected with a fixing mechanism, one end of the supporting shaft is fixed below the air cylinder 16, the other end of the supporting shaft is hinged with the nozzle 20, the nozzle 20 is communicated with the second connecting pipe 19, the torsion spring 21 is arranged at the connecting position of the nozzle 20 and the supporting, the two ends of the torsion spring 21 are respectively connected with the support shaft and the nozzle 20, one end of the air rod 14 is fixedly connected with the piston 15, one side of the air cylinder 16 close to the output shaft of the motor 7 is provided with an opening, the other end of the air rod 14 penetrates through the opening to be hinged with the sliding block 13, the connecting rod 12 is L-shaped, one end of the connecting rod 12 is connected with the transmission assembly, the other end of the connecting rod 12 is fixedly connected with the connecting block 23, the sliding block 13 is sleeved on the connecting rod 12, and the two ends of the connecting rope 22 are respectively fixedly connected with the connecting block 23 and the nozzle 20;

the motor 7 during operation, the output shaft that drives motor 7 rotates, thereby make the transmission assembly work, it rotates to drive connecting rod 12, make slider 13 rotate, thereby drive the round trip movement of piston 15 in inflator 16 through gas pole 14, thereby can be with the inside of leading-in inflator 16 of air in the fixed tube 18 through first connecting pipe 17, rethread second connecting pipe 19 is leading-in nozzle 20, make nozzle 20 blow to the work piece, make the piece that produces when polishing can not remain on the work piece surface, thereby need not staff's follow-up clearance, thereby the reliability of equipment has been improved, when connecting rod 12 rotates, can also drive connecting block 23 and rotate, drive the round trip swing of nozzle 20 through connecting rope 22, thereby the scope of blowing of nozzle 20 has been enlarged, thereby the cleaning effect has been promoted, the practicality of equipment has been improved.

As shown in fig. 1-3, the fixing mechanism includes a fixing plate 40, a fixing column 36, an iron rod 39, an electromagnet 37, a first spring 38 and a control assembly, the fixing column 36 is vertically fixed above the base 1, a blind hole is formed in the fixing column 36, one end of the iron rod 39 is fixedly connected with the fixing plate 40, the other end of the iron rod 39 is arranged inside the blind hole, the iron rod 39 is matched with the blind hole, the iron rod 39 is slidably connected with the blind hole, the electromagnet 37 is fixed at the bottom inside the blind hole, two ends of the first spring 38 are respectively connected with the other end of the iron rod 39 and the bottom inside the blind hole, the electromagnet 37 is electrically connected with the PLC, and the control assembly is connected with one end of the fixing tube 18, which is far away from the first connecting tube 17;

the control assembly comprises a fixing ring 24, a moving plate 25, a support 28, a ball screw bearing 29, a screw rod 30, a second bearing, a control unit, two limiting rings 27 and two second springs 26, the second bearing is fixed above the base 1, the screw rod 30 is fixedly connected with the inner ring of the second bearing, the ball screw bearing 29 is sleeved on the screw rod 30, a joint of the ball screw bearing 29 and the screw rod 30 is provided with a thread matched with the screw rod 30, the fixing ring 24 is fixed on the inner wall of the fixing pipe 18, the moving plate 25 is matched with the annular hole of the fixing ring 24, the moving plate 25 is matched with the inner wall of the annular hole of the fixing ring 24, the support 28 is U-shaped, two ends of the support 28 are fixedly connected with the lower part of the moving plate 25, a through hole is arranged on the support 28, the outer ring of the ball screw bearing 29 is fixedly connected with the inner wall of the, the limiting rings 27 are fixed on the inner wall of the fixing ring 24, the two limiting rings 27 are respectively sleeved on two ends of the bracket 28, the limiting rings 27 correspond to the second springs 26 one by one, and two ends of each second spring 26 are respectively connected with the lower part of the movable plate 25 and the upper part of the limiting ring 27;

the control unit includes trigger switch 32, control panel 33, dead lever 31 and two third springs 34, the shape of dead lever 31 is the U-shaped, the both ends of dead lever 31 all with lead screw 30 fixed connection, the both ends of control panel 33 all are equipped with the aperture, two apertures are passed respectively at the both ends of dead lever 31, dead lever 31 matches with the aperture, trigger switch 32 fixes on dead lever 31, and two third springs 34 set up the both ends at dead lever 31 respectively, the both ends of third spring 34 are connected with control panel 33 and lead screw 30 respectively.

When the piston 15 moves towards the direction close to the opening, the air in the fixed tube 18 is introduced into the first connecting tube 17, so that the air pressure in the fixed tube 18 is reduced, the external air pressure is greater than the pressure in the fixed tube 18, the moving plate 25 moves upwards, the second spring 26 is stretched, the moving plate 25 is separated from the fixed ring 24, so that the external air can enter the fixed tube 18 through the annular hole of the fixed ring 24, when the piston 15 moves towards the direction far away from the opening, the air in the fixed tube 18 can not enter the air cylinder 16, under the action of the restoring force of the second spring 26, the moving plate 25 moves downwards, so that the moving plate 25 blocks the annular hole of the fixed ring 24, thereby realizing the function of moving the moving plate 25 up and down, the ball screw bearing 29 can be driven by the bracket 28 to move up and down along the screw rod 30, so that the screw rod 30 rotates back and forth, under the action of centrifugal force, the control panel 33 moves in a direction away from the screw rod 30, the third spring 34 is stretched, the control panel 33 is abutted against the trigger switch 32, a signal is sent to the PLC, the PLC controls the electromagnet 37 to be electrified, the iron rod 39 is attracted, the iron rod 39 moves downwards, the first spring 38 is compressed, the fixing plate 40 is driven to move downwards, the fixing plate 40 is abutted against a workpiece, the function of fixing the position of the workpiece is realized, the grinding precision is prevented from being influenced by the position deviation of the workpiece, the reliability of the equipment is improved, when the grinding work is not carried out any more, air in the fixing tube 18 is not sucked into the air cylinder 16 any more, the moving plate 25 does not move any more, the screw rod 30 does not rotate any more, the control panel 33 is separated from the trigger switch 32 under the action of restoring force of the third spring 34, and the electromagnet 37 is not electrified any more, so that the iron rod 39 is moved upward by the restoring force of the first spring 38 so that the fixing plate 40 no longer fixes the workpiece, thereby facilitating the user to take the workpiece away.

As preferred, in order to drive piston 15 and remove, drive assembly includes drive gear 9 and two coupling unit, drive gear 9 is fixed on the output shaft of motor 7, be equipped with two pilot holes on the lifter plate 6, pilot hole and coupling unit one-to-one, coupling unit is including connecting gear 10, connecting axle 11 and third bearing, the third bearing is fixed on lifter plate 6, the inner circle fixed connection of connecting axle 11 and third bearing, the one end and the connecting gear 10 fixed connection of connecting axle 11, connecting gear 10 and the meshing of drive gear 9, the one end fixed connection of keeping away from connecting block 23 of pilot hole and connecting rod 12 is passed to the other end of connecting axle 11.

When the motor 7 works, the output shaft of the motor 7 is driven to rotate, so that the transmission gear 9 rotates, the connection gear 10 rotates through the meshing of the transmission gear 9 and the connection gear 10, the connection shaft 11 is driven to rotate, the rotating rod rotates, the piston 15 can be driven to move back and forth in the air cylinder 16 through the air rod 14, and the function of transmitting power is achieved.

Preferably, in order to make the connecting gear 10 rotate smoothly, the transmission gear 9 is coated with grease, so that the friction between the transmission gear 9 and the connecting gear 10 is reduced, and the connecting gear 10 rotates more smoothly.

Preferably, in order to reduce the possibility of damage to the trigger switch 32, a rubber pad 35 is fixed on the side of the control plate 33 close to the trigger switch 32, and the rubber pad 35 is arranged opposite to the trigger switch 32.

By arranging the rubber pad 35, direct contact between the control board 33 and the trigger switch 32 is avoided, so that rigid contact is changed into flexible contact, the damage probability of the control board 33 is reduced, and the service life of the trigger switch 32 is prolonged.

Preferably, the connecting rope 22 is made of nylon to prolong the service life of the connecting rope 22.

Preferably, the lead screw 30 is coated with an anti-corrosion zinc coating in order to prevent the lead screw 30 from being corroded.

Preferably, in order to increase the friction force, the fixing plate 40 is provided with an anti-slip thread on the side close to the workbench 4.

Through setting up anti-skidding line, increased the frictional force when fixed plate 40 supports with the work piece and leans on to make fixed plate 40 more stable when fixing the work piece.

Preferably, the first and

second connection pipes

17 and 19 are each formed in a flexible hose shape in order to facilitate the up and down movement of the air cylinder 16 and the swing movement of the nozzle 20.

Preferably, the cross-sectional shape of the blind hole is square in order to limit the moving direction of the iron rod 39.

Through setting up the blind hole to the quad slit for iron set 39 can not take place to rock when moving along the blind hole, thereby has improved the stability when fixed plate 40 removes.

Preferably, the motor 7 is a servo motor in order to make the motor 7 work accurately and stably.

The motor 7 during operation, the output shaft that drives motor 7 rotates, thereby make the transmission assembly work, it rotates to drive connecting rod 12, make slider 13 rotate, thereby drive the round trip movement of piston 15 in inflator 16 through gas pole 14, thereby can be with the inside of leading-in inflator 16 of air in the fixed tube 18 through first connecting pipe 17, rethread second connecting pipe 19 is leading-in nozzle 20, make nozzle 20 blow to the work piece, make the piece that produces when polishing can not remain on the work piece surface, thereby need not staff's follow-up clearance, thereby the reliability of equipment has been improved, when connecting rod 12 rotates, can also drive connecting block 23 and rotate, drive the round trip swing of nozzle 20 through connecting rope 22, thereby the scope of blowing of nozzle 20 has been enlarged, thereby the cleaning effect has been promoted, the practicality of equipment has been improved. When the piston 15 moves towards the direction close to the opening, the air in the fixed tube 18 is introduced into the first connecting tube 17, so that the air pressure in the fixed tube 18 is reduced, the external air pressure is greater than the pressure in the fixed tube 18, the moving plate 25 moves upwards, the second spring 26 is stretched, the moving plate 25 is separated from the fixed ring 24, so that the external air can enter the fixed tube 18 through the annular hole of the fixed ring 24, when the piston 15 moves towards the direction far away from the opening, the air in the fixed tube 18 can not enter the air cylinder 16, under the action of the restoring force of the second spring 26, the moving plate 25 moves downwards, so that the moving plate 25 blocks the annular hole of the fixed ring 24, thereby realizing the function of moving the moving plate 25 up and down, the ball screw bearing 29 can be driven by the bracket 28 to move up and down along the screw rod 30, so that the screw rod 30 rotates back and forth, under the action of centrifugal force, the control panel 33 moves in a direction away from the screw rod 30, the third spring 34 is stretched, the control panel 33 is abutted against the trigger switch 32, a signal is sent to the PLC, the PLC controls the electromagnet 37 to be electrified, the iron rod 39 is attracted, the iron rod 39 moves downwards, the first spring 38 is compressed, the fixing plate 40 is driven to move downwards, the fixing plate 40 is abutted against a workpiece, the function of fixing the position of the workpiece is realized, the grinding precision is prevented from being influenced by the position deviation of the workpiece, the reliability of the equipment is improved, when the grinding work is not carried out any more, air in the fixing tube 18 is not sucked into the air cylinder 16 any more, the moving plate 25 does not move any more, the screw rod 30 does not rotate any more, the control panel 33 is separated from the trigger switch 32 under the action of restoring force of the third spring 34, and the electromagnet 37 is not electrified any more, so that the iron rod 39 is moved upward by the restoring force of the first spring 38 so that the fixing plate 40 no longer fixes the workpiece, thereby facilitating the user to take the workpiece away.

Compared with the prior art, this equipment of polishing that reliability is high passes through clean mechanism, make nozzle 20 blow to the work piece, make the piece that produces when polishing can not remain on the work piece surface, thereby need not staff's follow-up clearance, thereby the practicality of equipment has been improved, compare with current clean mechanism, this clean mechanism can also drive the swing that nozzle 20 made a round trip, the scope of blowing of nozzle 20 has been enlarged, thereby the cleaning performance has been promoted, through fixed establishment, realize the function of fixed work piece position, avoid work piece offset and influence the precision of polishing, thereby the reliability of equipment has been improved, compare with current fixed mechanism, this fixed mechanism and clean mechanism link gear as an organic whole, can also realize fixed function when realizing the clearance, the practicality is higher.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A polishing device with high reliability comprises a top plate (3), a base (1), a workbench (4), a lifting plate (6), a motor (7), a grinding disc (8), a first bearing, two pillars (2) and two cylinders (5), wherein the two pillars (2) are respectively fixed at two sides above the base (1), two sides of the top plate (3) are respectively fixedly connected with the two pillars (2), a cylinder body of the cylinder (5) is vertically fixed at two sides above the top plate (3), the top plate (3) is provided with two through holes, the cylinders (5) are in one-to-one correspondence with the through holes, a gas rod (14) of the cylinder (5) penetrates through the through holes to be fixedly connected with the lifting plate (6), the motor (7) is fixed above the lifting plate (6), the lifting plate (6) is provided with a round hole, an outer ring of the first bearing is fixedly connected with an inner wall of the round hole, an output shaft of the motor (7) penetrates through a circular hole to be fixedly connected with the grinding disc (8), the output shaft of the motor (7) is fixedly connected with an inner ring of the first bearing, the workbench (4) is fixed above the base (1), and the base (1) is internally provided with a PLC (programmable logic controller). the device is characterized by further comprising a cleaning mechanism and two fixing mechanisms, wherein the cleaning mechanism is arranged on the lifting plate (6), the two fixing mechanisms are respectively arranged on two sides of the workbench (4), and the cleaning mechanism is connected with the fixing mechanisms;

the cleaning mechanism comprises a transmission assembly and two cleaning assemblies, the transmission assembly is connected with an output shaft of the motor (7), the two cleaning assemblies are respectively arranged on two sides below the lifting plate (6), the transmission assembly is connected with the cleaning assemblies, the cleaning assemblies correspond to the fixing mechanism one by one, and the cleaning assemblies are connected with the fixing mechanism;

the cleaning assembly comprises an air cylinder (16), a piston (15), an air rod (14), a sliding block (13), a connecting rod (12), a connecting rope (22), a connecting block (23), a supporting shaft, a nozzle (20), a torsion spring (21), a first connecting pipe (17), a second connecting pipe (19) and a fixed pipe (18), wherein the air cylinder (16) is fixed below a lifting plate (6), the piston (15) is arranged in the air cylinder (16), the piston (15) is hermetically connected with the inner wall of the air cylinder (16), the fixed pipes (18) are in one-to-one correspondence with the supporting columns (2), the fixed pipes (18) are fixed on the supporting columns (2), the air cylinder (16) is communicated with one end of the fixed pipe (18) through the first connecting pipe (17), the other end of the fixed pipe (18) is connected with a fixing mechanism, one end of the supporting shaft is fixed below the air cylinder (16), the other end of the supporting shaft is hinged with a nozzle (20), the nozzle (20) is communicated with a second connecting pipe (19), the torsion spring (21) is arranged at the joint of the nozzle (20) and the supporting shaft, two ends of the torsion spring (21) are respectively connected with the supporting shaft and the nozzle (20), one end of the air rod (14) is fixedly connected with the piston (15), one side of the air cylinder (16) close to the output shaft of the motor (7) is provided with an opening, the other end of the air rod (14) passes through the opening and is hinged with the sliding block (13), the connecting rod (12) is L-shaped, one end of the connecting rod (12) is connected with the transmission component, the other end of the connecting rod (12) is fixedly connected with the connecting block (23), the sliding block (13) is sleeved on the connecting rod (12), and two ends of the connecting rope (22) are respectively fixedly connected with the connecting block (23) and the nozzle (20);

the fixing mechanism comprises a fixing plate (40), a fixing column (36), an iron rod (39), an electromagnet (37), a first spring (38) and a control assembly, the fixing column (36) is vertically fixed above the base (1), a blind hole is formed in the fixing column (36), one end of the iron rod (39) is fixedly connected with the fixing plate (40), the other end of the iron rod (39) is arranged inside the blind hole, the iron rod (39) is matched with the blind hole, the iron rod (39) is connected with the blind hole in a sliding mode, the electromagnet (37) is fixed at the bottom of the blind hole, two ends of the first spring (38) are respectively connected with the other end of the iron rod (39) and the bottom of the blind hole, the electromagnet (37) is electrically connected with the PLC, and the control assembly is connected with one end, far away from the first connecting pipe (17), of the fixing pipe (18);

the control assembly comprises a fixing ring (24), a moving plate (25), a support (28), a ball screw bearing (29), a screw rod (30), a second bearing, a control unit, two limiting rings (27) and two second springs (26), the second bearing is fixed above the base (1), the screw rod (30) is fixedly connected with an inner ring of the second bearing, the ball screw bearing (29) is sleeved on the screw rod (30), a connecting part of the ball screw bearing (29) and the screw rod (30) is provided with a thread matched with the screw rod (30), the fixing ring (24) is fixed on the inner wall of a fixing pipe (18), the moving plate (25) is matched with a ring hole of the fixing ring (24), the moving plate (25) is matched with the inner wall of the ring hole of the fixing ring (24), the support (28) is U-shaped, two ends of the support (28) are fixedly connected with the lower part of the moving plate (25), a through hole is formed in the support (28), the outer ring of the ball screw bearing (29) is fixedly connected with the inner wall of the through hole, the limiting rings (27) are fixed on the inner wall of the fixing ring (24), the two limiting rings (27) are respectively sleeved at two ends of the support (28), the limiting rings (27) correspond to the second springs (26) one by one, and two ends of each second spring (26) are respectively connected with the lower portion of the movable plate (25) and the upper portion of the limiting ring (27);

the control unit comprises a trigger switch (32), a control panel (33), a fixing rod (31) and two third springs (34), the fixing rod (31) is U-shaped, the two ends of the fixing rod (31) are fixedly connected with a screw rod (30), the two ends of the control panel (33) are provided with small holes, the two ends of the fixing rod (31) penetrate through the two small holes respectively, the fixing rod (31) is matched with the small holes, the trigger switch (32) is fixed on the fixing rod (31), the two third springs (34) are arranged at the two ends of the fixing rod (31) respectively, and the two ends of the third springs (34) are connected with the control panel (33) and the screw rod (30) respectively.

2. The grinding device with high reliability as claimed in claim 1, wherein the transmission assembly comprises a transmission gear (9) and two connecting units, the transmission gear (9) is fixed on an output shaft of the motor (7), the lifting plate (6) is provided with two assembling holes, the assembling holes correspond to the connecting units one by one, the connecting units comprise a connecting gear (10), a connecting shaft (11) and a third bearing, the third bearing is fixed on the lifting plate (6), the connecting shaft (11) is fixedly connected with an inner ring of the third bearing, one end of the connecting shaft (11) is fixedly connected with the connecting gear (10), the connecting gear (10) is meshed with the transmission gear (9), and the other end of the connecting shaft (11) penetrates through the assembling holes to be fixedly connected with one end, far away from the connecting block (23), of the connecting rod (12).

3. A highly reliable grinding apparatus according to claim 2, characterized in that the transmission gear (9) is coated with grease.

4. The highly reliable grinding apparatus according to claim 1, wherein a rubber pad (35) is fixed to a side of the control plate (33) close to the trigger switch (32), and the rubber pad (35) is disposed opposite to the trigger switch (32).

5. A sanding device with high reliability as defined in claim 1, characterized in that the connecting rope (22) is made of nylon.

6. The highly reliable grinding apparatus according to claim 1, wherein the lead screw (30) is coated with an anti-corrosion zinc plating layer.

7. The grinding apparatus with high reliability as claimed in claim 1, characterized in that the side of the fixing plate (40) close to the working table (4) is provided with anti-slip threads.

8. A highly reliable grinding apparatus according to claim 1, characterized in that the first connecting tube (17) and the second connecting tube (19) are each shaped as a bellows.

9. The highly reliable grinding apparatus as claimed in claim 1, wherein the cross-sectional shape of said blind hole is a square.

10. A grinding device with high reliability according to claim 1, characterized in that the motor (7) is a servo motor.