CN114131499B - Surface precision treatment system and treatment process for split blade of aircraft engine - Google Patents
Surface precision treatment system and treatment process for split blade of aircraft engine Download PDFInfo
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- CN114131499B CN114131499B CN202111462091.7A CN202111462091A CN114131499B CN 114131499 B CN114131499 B CN 114131499B CN 202111462091 A CN202111462091 A CN 202111462091A CN 114131499 B CN114131499 B CN 114131499B
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- Prior art keywords
- magnetic pole
- driving shaft
- driving
- abrasive
- fixedly connected
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/005—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using a magnetic polishing agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
- B24B31/0224—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels the workpieces being fitted on a support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/16—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces performing a reciprocating movement, e.g. during which the sense of rotation of the working-spindle is reversed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses an aircraft engine split blade surface precision treatment system and a treatment process thereof, and the system comprises a base, wherein a control box and a support are respectively arranged on two sides of the top of the base, a through driving shaft is arranged in a cylinder, a plurality of annular and uniformly distributed connecting seats are arranged on the outer wall of the center of the driving shaft, driving parts are respectively arranged on two sides of each connecting seat, each driving part consists of a clamping mechanism and a guide mechanism, and an upper magnetic pole mechanism and a lower magnetic pole mechanism are respectively arranged on the upper side and the lower side of the cylinder. According to the invention, the driving part is arranged in the cylinder body to drive the blade to move, the relative motion mode between the blade and the abrasive is diversified through the mutual matching of the fixed magnetic pole and the movable magnetic pole, and the module in the abrasive can always rub the surface of the blade with larger pressure by increasing the disorder of motion, so that the surface of the blade is completely treated, and the surface treatment efficiency is improved.
Description
Technical Field
The invention relates to the technical field of surface machining of mechanical parts, in particular to a surface precision treatment system and a surface precision treatment process for split blades of an aircraft engine.
Background
The engine is the heart component of the aircraft and the blades are also important components of the engine. The profile of the blade is a free-form surface, the processing quality of the blade has important influence on the reliability of the aeroengine, and the surface quality of the blade directly influences the pneumatic performance of the blade and further influences the performance of the aeroengine.
The barreling and polishing processing technology has the characteristics of integral processing, comprehensive improvement of surface integrity characteristic parameters and economic bearing. At present, the finishing processing of the blade includes modes such as manual polishing, abrasive belt polishing, abrasive particle flow polishing, shot peening strengthening, laser shock strengthening, and the like, and a method for finishing the blade by adopting a rotational flow type roll grinding finishing processing technology is adopted in the prior art. The workpiece, the grinding block and the grinding agent are loaded into the roller according to a certain mixing ratio, and when the roller moves, strong extrusion force and forced flow force are generated between the workpiece and the grinding block, so that the grinding block is forced to collide, roll, slide and scratch the workpiece, and the surface of the workpiece is finished. However, the conventional roller has a single movement mode, and the movement states of the workpiece and the grinding block after a period of time are stable, so that the extrusion force between the workpiece and the grinding block is reduced, and the surface of the workpiece is not completely machined.
Disclosure of Invention
The invention aims to: in order to solve the problems, the invention provides a system and a process for precisely treating the surfaces of split blades of an aircraft engine.
In order to achieve the purpose, the invention adopts the following technical scheme:
the surface precision treatment system for the split blades of the aircraft engine comprises a base, wherein a control box and a support are respectively arranged on two sides of the top of the base, a cylinder is arranged between the control box and the cylinder, the control box is fixedly connected with the cylinder, a PLC (programmable logic controller) and a driving device are arranged in the control box, a penetrating driving shaft is arranged in the cylinder, one end of the driving shaft is fixedly connected with the output end of the driving device, the other end of the driving shaft is rotatably connected with the support, a plurality of connecting seats which are uniformly distributed in an annular mode are arranged on the outer wall of the center of the driving shaft, driving parts are respectively arranged on two sides of each connecting seat, each driving part consists of a clamping mechanism and a guide mechanism, and an upper magnetic pole mechanism and a lower magnetic pole mechanism are respectively arranged on the upper side and the lower side of the cylinder; the guide mechanism comprises an extensible member, a connecting block is fixedly connected to the extensible end of the extensible member, a connecting plate is fixedly connected to one side, away from the driving shaft, of the connecting block, a protrusion is arranged on one side, close to the driving shaft, of the connecting block, a sleeve is arranged on the outer side of the driving shaft, a guide groove matched with the protrusion is formed in the surface of the sleeve, a rack is fixedly connected to the outer side of the extensible member, a second gear is arranged at the bottom of the clamping mechanism, and the second gear is meshed with the rack; the upper magnetic pole mechanism consists of a plurality of fixed magnetic poles which are distributed at equal intervals along the axial direction of the driving shaft; the lower magnetic pole mechanism comprises a shell, a driving piece is arranged at the bottom of the shell, a plurality of rotary lifting assemblies corresponding to the fixed magnetic poles are arranged in the shell, and a plurality of movable magnetic poles are arranged at the top of each rotary lifting assembly;
the treatment process of the treatment system comprises the following steps:
s1, installing a blade, fixing the blade on a clamping mechanism, and pouring abrasive materials consisting of magnetorheological fluid, an abrasive block and an abrasive agent into a cylinder;
s2, the blades move, and the control device is started to drive the driving shaft to rotate, so that the blades rotate around the driving shaft, autorotate at the same time, and reciprocate along the axial direction of the driving shaft;
s3, enabling the abrasive to flow, starting a driving piece to drive the movable magnetic pole to rotate and move up and down in a reciprocating manner, and generating a changing magnetic field between the movable magnetic pole and the fixed magnetic pole so that the abrasive rotates and the abrasive extrudes the workpiece;
s4, taking out the blade, and discharging the grinding materials out of the cylinder through a discharge port.
Preferably, fixture includes the mount pad, the mount pad rotates with the connecting plate to be connected, second gear fixed connection is in the bottom of mount pad, the top of mount pad is provided with two grip blocks, the grip block passes through supporting component and mount pad swing joint to the side of grip block has a plurality of draw-in grooves.
Preferably, the supporting component comprises a first gear, two swing rods are arranged on two sides of the first gear, one of the two swing rods is fixedly connected with the first gear, the other swing rod is rotatably connected with the mounting seat, the two swing rods are rotatably connected with the clamping blocks, the two swing rods, the clamping blocks and the mounting seat form a parallelogram structure, one is arranged between the swing rods and the mounting seat and is always in a compression state, and the first gears of the supporting components of the two clamping blocks are meshed with each other.
Preferably, the clamping mechanisms are provided in at least three and are equally spaced in the axial direction of the drive shaft.
Preferably, lifting unit includes the cam, the top fixedly connected with guide post of cam, the outer wall of guide post has the recess that extends along axial direction, the outside of guide post be provided with recess complex sliding sleeve, the outside fixedly connected with carousel of sliding sleeve, a plurality of movable magnetic pole annular evenly distributed are at the top of carousel, it is connected with the regulation pole to rotate on the inside lateral wall of casing, the top of adjusting the pole and the side that is close to the cam all inlay and be equipped with the ball.
Preferably, the rolling balls at the top end of the adjusting rod are in rolling contact with the top of the rotating disc, a plurality of rolling balls are arranged on the side face of the adjusting rod and are in rolling contact with the cam, and the periphery of the cam is of an arc-shaped structure.
Preferably, the movable magnetic pole has a fan-shaped structure, the fixed magnetic pole has a rectangular structure, and the area of the fixed magnetic pole is larger than that of the turntable.
Preferably, the side of barrel is provided with sealing door, sealing door's both sides all are provided with support piece, support piece is elastic telescopic rod, one side that the barrel is close to the support is provided with charge door and discharge gate.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. this application removes in order to drive the blade through set up the drive division in the barrel to mutually supporting through fixed magnetic pole and activity magnetic pole makes the relative motion mode between blade and the abrasive material diversified, through the orderliness that increases the motion, makes the module in the abrasive material can be with great pressure friction blade surface all the time, and then makes blade surface complete processing, improves surface treatment's efficiency simultaneously.
2. This application can drive the blade to do reciprocating motion and rotation along the axial direction of drive shaft when rotatory around the drive shaft through setting up the drive division, the drive division is provided with guide post and sleeve, set up the guide way on the sleeve, the lower half of guide way is the arc structure, the guide post can be along the guide way toward the axial direction reciprocating motion of drive shaft, the drive division still is provided with second gear and rack simultaneously, in guide post reciprocating motion, make the second gear along rack reciprocating motion, and then make the reciprocating rotation of second gear, make the blade can be at a plurality of rotations through setting up of drive division, the revolution and along straight reciprocating motion, the motion form has been increased, make the surface of blade everywhere all can fully contact with the abrasive material, help improving the homogeneity of surface treatment, the compact structure of drive division simultaneously, and the space is saved, so can install more quantity of blade, thereby the machining efficiency is improved.
3. This application can make the abrasive material rotatory and extrusion under the effect in magnetic field through the fixed magnetic pole and the movable magnetic pole that set up, thereby realize multi-directional removal, make the blade can fully contact with the abrasive material, thereby improve surface treatment's effect, contain magnetorheological suspensions in the abrasive material, abrasive brick and abrasive, the movable magnetic pole sets up on the carousel, the carousel bottom sets up adjusts pole and cam, carousel and cam synchronous revolution, along with the rotatory angle that changes the regulation pole of cam, and then make the carousel reciprocate, and then realize the rotation and the extrusion motion of abrasive material.
Drawings
FIG. 1 is a schematic diagram illustrating an overall structure of a processing system according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating a structure of a driving part provided according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a partial first viewing angle structure of a driving portion according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a partial second view structure of a driving portion according to an embodiment of the present invention;
FIG. 5 illustrates a schematic view of a fixture and blade mating arrangement provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a clamping mechanism provided according to an embodiment of the invention;
FIG. 7 is a schematic diagram illustrating an internal structure of a housing provided in accordance with an embodiment of the present invention;
FIG. 8 is a schematic view of a cam and turntable connection structure provided in accordance with an embodiment of the present invention;
figure 9 shows a process flow diagram of the present invention.
Illustration of the drawings:
1. a base; 2. a control box; 3. a support; 4. a barrel; 5. a sealing door; 6. a support member; 7. a drive shaft; 8. a connecting seat; 9. a telescoping member; 10. connecting blocks; 11. a connecting plate; 12. a mounting seat; 13. a first gear; 14. a swing lever; 15. a clamping block; 16. a card slot; 17. a spring; 18. a second gear; 19. a rack; 20. a protrusion; 21. a sleeve; 22. a guide groove; 23. fixing the magnetic pole; 24. a housing; 25. a drive member; 26. a cam; 27. a guide post; 28. a sliding sleeve; 29. a turntable; 30. a movable magnetic pole; 31. adjusting a rod; 32. and a ball.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, the present invention provides a technical solution:
an aircraft engine split blade surface precision processing system comprises a base 1, wherein a control box 2 and a support 3 are respectively arranged on two sides of the top of the base 1, a cylinder 4 is arranged between the control box 2 and the cylinder 4, a PLC (programmable logic controller) and a driving device are arranged in the control box 2, a through driving shaft 7 is arranged in the cylinder 4, one end of the driving shaft 7 is fixedly connected with the output end of the driving device, the other end of the driving shaft is rotatably connected with the support 3, a plurality of annular and uniformly distributed connecting seats 8 are arranged on the outer wall of the center of the driving shaft 7, driving parts are arranged on two sides of each connecting seat 8, each driving part consists of a clamping mechanism and a guide mechanism, and an upper magnetic pole mechanism and a lower magnetic pole mechanism are respectively arranged on the upper side and the lower side of the cylinder 4; the guide mechanism comprises an extensible member 9, a connecting block 10 is fixedly connected to the extensible end of the extensible member 9, a connecting plate 11 is fixedly connected to one side, away from the driving shaft 7, of the connecting block 10, a protrusion 20 is arranged on one side, close to the driving shaft 7, of the connecting block 10, a sleeve 21 is arranged on the outer side of the driving shaft 7, a guide groove 22 matched with the protrusion 20 is formed in the surface of the sleeve 21, a rack 19 is fixedly connected to the outer side of the extensible member 9, a second gear 18 is arranged at the bottom of the clamping mechanism, and the second gear 18 is meshed with the rack 19; the upper magnetic pole mechanism is composed of a plurality of fixed magnetic poles 23, and the plurality of fixed magnetic poles 23 are distributed at equal intervals along the axial direction of the driving shaft 7; the lower magnetic pole mechanism comprises a shell 24, a driving part 25 is arranged at the bottom of the shell 24, a plurality of rotary lifting components corresponding to the fixed magnetic poles 23 are arranged inside the shell 24, and a plurality of movable magnetic poles 30 are arranged at the top of the rotary lifting components; fixture includes mount pad 12, and mount pad 12 rotates with connecting plate 11 to be connected, and second gear 18 fixed connection is in the bottom of mount pad 12, and the top of mount pad 12 is provided with two grip blocks 15, and grip block 15 passes through supporting component and mount pad 12 swing joint to the side of grip block 15 has a plurality of draw-in grooves 16. The supporting component comprises a first gear 13, two swing rods 14 are arranged on two sides of the first gear 13, one of the two swing rods 14 is fixedly connected with the first gear 13, the other swing rod is rotatably connected with the mounting seat 12, the two swing rods 14 are rotatably connected with the clamping blocks 15, the two swing rods 14, the clamping blocks 15 and the mounting seat 12 form a parallelogram structure, a spring 17 is arranged between one swing rod 14 and the mounting seat 12, the spring 17 is always in a compression state, and the two first gears 13 of the supporting component of the two clamping blocks 15 are meshed with each other. The gripping mechanisms are provided in at least three and equally spaced apart in the axial direction of the drive shaft 7. Lifting unit includes cam 26, cam 26's top fixedly connected with guide post 27, the outer wall of guide post 27 has the recess that extends along axial direction, the outside of guide post 27 be provided with recess complex sliding sleeve 28, the outside fixedly connected with carousel 29 of sliding sleeve 28, a plurality of movable magnetic pole 30 annular evenly distributed are at the top of carousel 29, it is connected with regulation pole 31 to rotate on the inside lateral wall of casing 24, the top of adjusting pole 31 and the side that is close to cam 26 all inlay and be equipped with ball 32. The ball 32 at the top end of the adjusting rod 31 is in rolling contact with the top of the rotating disc 29, a plurality of balls 32 are arranged on the side surface of the adjusting rod 31 and are in rolling contact with the cam 26, and the outer periphery of the cam 26 is of an arc-shaped structure. The movable magnetic pole 30 has a fan-shaped structure, the fixed magnetic pole 23 has a rectangular structure, and the area of the fixed magnetic pole 23 is larger than that of the turntable 29. The side of barrel 4 is provided with sealing door 5, and sealing door 5's both sides all are provided with support piece 6, and support piece 6 is elastic telescopic rod, and one side that barrel 4 is close to support 3 is provided with charge door and discharge gate.
The treatment process of the treatment system comprises the following steps:
s1, installing a blade, fixing the blade on a clamping mechanism, and pouring abrasive materials consisting of magnetorheological fluid, an abrasive block and an abrasive agent into a cylinder 4;
s2, the blades move, and the control device is started to drive the driving shaft 7 to rotate, so that the blades rotate around the driving shaft 7 and rotate at the same time and reciprocate along the axial direction of the driving shaft 7;
s3, the grinding materials flow, the driving piece 25 is started, the movable magnetic pole 30 is driven to rotate and move up and down in a reciprocating mode, a changing magnetic field is generated between the movable magnetic pole 30 and the fixed magnetic pole 23, and the grinding materials rotate and extrude the workpiece;
s4, taking out the blade, and discharging the abrasive from the cylinder 4 through a discharge port.
Specifically, as shown in fig. 2, fig. 3 and fig. 4, the inside of barrel 4 is provided with drive shaft 7 that runs through, the one end of drive shaft 7 and drive arrangement's output fixed connection, the other end rotates with support 3 to be connected, be provided with a plurality of annular evenly distributed's connecting seat 8 on the outer wall of drive shaft 7 center department, the both sides of connecting seat 8 all are provided with the drive division, the drive division comprises fixture and guiding mechanism, guiding mechanism includes extensible member 9, the flexible end fixedly connected with connecting block 10 of extensible member 9, one side fixedly connected with connecting plate 11 that drive shaft 7 was kept away from to connecting block 10, one side that connecting block 10 is close to drive shaft 7 has arch 20, the outside of drive shaft 7 is provided with sleeve 21, the surface of sleeve 21 is provided with guide way 22 with arch 20 complex, the outside fixedly connected with rack 19 of extensible member 9, the bottom of fixture is provided with second gear 18, and second gear 18 and rack 19 intermeshing.
The axial both ends of drive shaft 7 all set up a plurality of fixture, can install a plurality of blades, so this device can carry out the surface finish to a plurality of blades simultaneously when the operation, improves machining efficiency. The driving shaft 7 is driven to rotate by the driving device, the clamping mechanism rotates around the driving shaft 7 along with the driving device, the protrusions 20 are clamped in the guide grooves 22, the clamping mechanism moves along with the protrusions 20, the lower half portions of the guide grooves 22 extend towards the two axial ends of the driving shaft 7 at least once, the clamping mechanism is made to reciprocate along the axial direction of the driving shaft 7, the clamping mechanism rotates around the self under the action of the second gear 18 and the rack 19 when the clamping mechanism moves, and therefore the blades have three movement modes through the driving portion, multiple operation modes are achieved, and the blades are fully contacted with abrasive materials.
Specifically, as shown in fig. 5 and 6, the clamping mechanism includes a mounting seat 12, the mounting seat 12 is rotatably connected to the connecting plate 11, the second gear 18 is fixedly connected to the bottom of the mounting seat 12, two clamping blocks 15 are disposed at the top of the mounting seat 12, the clamping blocks 15 are movably connected to the mounting seat 12 through a supporting component, and a plurality of clamping grooves 16 are formed in the side surface of each clamping block 15. The supporting component comprises a first gear 13, two swing rods 14 are arranged on two sides of the first gear 13, one of the two swing rods 14 is fixedly connected with the first gear 13, the other swing rod is rotatably connected with the mounting seat 12, the two swing rods 14 are rotatably connected with the clamping blocks 15, the two swing rods 14, the clamping blocks 15 and the mounting seat 12 form a parallelogram structure, a spring 17 is arranged between one swing rod 14 and the mounting seat 12, the spring 17 is always in a compression state, and the two first gears 13 of the supporting component of the two clamping blocks 15 are meshed with each other. The gripping mechanisms are provided in at least three and equally spaced apart in the axial direction of the drive shaft 7.
Specifically, as shown in fig. 1, 7 and 8, an upper magnetic pole mechanism and a lower magnetic pole mechanism are respectively disposed on the upper side and the lower side of the cylinder 4. The upper magnetic pole mechanism is composed of a plurality of fixed magnetic poles 23, and the plurality of fixed magnetic poles 23 are equally spaced in the axial direction of the drive shaft 7. The lower magnetic pole mechanism comprises a shell 24, a driving part 25 is arranged at the bottom of the shell 24, a plurality of rotary lifting assemblies corresponding to the fixed magnetic poles 23 are arranged inside the shell 24, and a plurality of movable magnetic poles 30 are arranged at the tops of the rotary lifting assemblies. Lifting unit includes cam 26, cam 26's top fixedly connected with guide post 27, the outer wall of guide post 27 has the recess that extends along axial direction, the outside of guide post 27 be provided with recess complex sliding sleeve 28, the outside fixedly connected with carousel 29 of sliding sleeve 28, a plurality of movable magnetic pole 30 annular evenly distributed are at the top of carousel 29, it is connected with regulation pole 31 to rotate on the inside lateral wall of casing 24, the top of adjusting pole 31 and the side that is close to cam 26 all inlay and are equipped with ball 32. The ball 32 at the top end of the adjusting rod 31 is in rolling contact with the top of the rotating disc 29, a plurality of balls 32 are arranged on the side surface of the adjusting rod 31 and are in rolling contact with the cam 26, and the outer periphery of the cam 26 is of an arc-shaped structure. The movable magnetic pole 30 has a fan-shaped structure, the fixed magnetic pole 23 has a rectangular structure, and the area of the fixed magnetic pole 23 is larger than that of the turntable 29.
The driving piece 25 can drive the cam 26 and the rotary disc 29 to rotate, the movable magnetic pole 30 is rotated, the abrasive is further rotated, the adjusting rod 31 is pushed to swing back and forth in the vertical plane while the cam 26 is rotated, up-and-down reciprocating movement of the rotary disc 29 is achieved, when the rotary disc 29 moves upwards, the abrasive is extruded under the action of a changing magnetic field, when the rotary disc 29 moves downwards, the abrasive moves downwards under the action of gravity, the movement mode of the abrasive is increased, relative movement between the abrasive and blades is irregular, and large pressure is always applied to the blades by the abrasive, so that the effect of surface treatment is improved. The provision of the balls 32 serves to reduce friction of the adjustment lever 31 with the cam 26 and the dial 29, reducing friction in a rolling manner.
In summary, according to the system and the process for precisely treating the surface of the split blade of the aircraft engine provided by the embodiment, firstly, the blade is installed and fixed on the clamping mechanism, and then the grinding material consisting of the magnetorheological fluid, the grinding block and the grinding agent is poured into the cylinder 4; secondly, the blades move, and the control device is started to drive the driving shaft 7 to rotate, so that the blades rotate around the driving shaft 7 and rotate at the same time and reciprocate along the axial direction of the driving shaft 7; thirdly, the grinding material flows, the driving piece 25 is started to drive the movable magnetic pole 30 to rotate and move up and down in a reciprocating manner, a changing magnetic field is generated between the movable magnetic pole 30 and the fixed magnetic pole 23, so that the grinding material rotates and the grinding material extrudes a workpiece; fourth, the blade is removed and the abrasive is discharged from the barrel 4 through a discharge opening.
The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The precise processing system for the surface of the split blade of the aircraft engine is characterized by comprising a base (1), wherein a control box (2) and a support (3) are respectively arranged on two sides of the top of the base (1), a barrel (4) is arranged between the control box and the support, the control box (2) is fixedly connected with the barrel (4), a PLC (programmable logic controller) and a driving device are arranged inside the control box (2), a penetrating driving shaft (7) is arranged inside the barrel (4), one end of the driving shaft (7) is fixedly connected with the output end of the driving device, the other end of the driving shaft is rotatably connected with the support (3), a plurality of annular and uniformly distributed connecting seats (8) are arranged on the outer wall of the center of the driving shaft (7), driving parts are respectively arranged on two sides of each connecting seat (8), each driving part consists of a clamping mechanism and a guiding mechanism, and an upper magnetic pole mechanism and a lower magnetic pole mechanism are respectively arranged on the upper side and the lower side of the barrel (4);
the guide mechanism comprises an extensible part (9), a connecting block (10) is fixedly connected with the extensible end of the extensible part (9), a connecting plate (11) is fixedly connected with one side, away from the driving shaft (7), of the connecting block (10), a protrusion (20) is arranged on one side, close to the driving shaft (7), of the connecting block (10), a sleeve (21) is arranged on the outer side of the driving shaft (7), a guide groove (22) matched with the protrusion (20) is formed in the surface of the sleeve (21), a rack (19) is fixedly connected with the outer side of the extensible part (9), a second gear (18) is arranged at the bottom of the clamping mechanism, and the second gear (18) is meshed with the rack (19);
the upper magnetic pole mechanism is composed of a plurality of fixed magnetic poles (23), and the plurality of fixed magnetic poles (23) are distributed at equal intervals along the axial direction of the driving shaft (7);
the lower magnetic pole mechanism comprises a shell (24), a driving piece (25) is arranged at the bottom of the shell (24), a plurality of rotary lifting assemblies corresponding to the fixed magnetic poles (23) are arranged in the shell (24), and a plurality of movable magnetic poles (30) are arranged at the tops of the rotary lifting assemblies;
the treatment process of the treatment system comprises the following steps:
s1, installing a blade, fixing the blade on a clamping mechanism, and pouring abrasive materials consisting of magnetorheological fluid, an abrasive block and an abrasive agent into a cylinder (4);
s2, the blades move, and the control device is started to drive the driving shaft (7) to rotate, so that the blades rotate around the driving shaft (7) and rotate at the same time and reciprocate along the axial direction of the driving shaft (7);
s3, enabling the abrasive to flow, starting the driving piece (25), driving the movable magnetic pole (30) to rotate and move up and down in a reciprocating mode, generating a changing magnetic field between the movable magnetic pole (30) and the fixed magnetic pole (23), and enabling the abrasive to rotate and extrude the workpiece through the abrasive;
s4, taking out the blade, and discharging the grinding materials out of the cylinder body (4) through a discharge port.
2. The aircraft engine split blade surface precision processing system of claim 1, wherein the clamping mechanism comprises a mounting seat (12), the mounting seat (12) is rotatably connected with the connecting plate (11), the second gear (18) is fixedly connected with the bottom of the mounting seat (12), two clamping blocks (15) are arranged on the top of the mounting seat (12), the clamping blocks (15) are movably connected with the mounting seat (12) through a supporting component, and a plurality of clamping grooves (16) are formed in the side surface of each clamping block (15).
3. The aircraft engine split blade surface precision processing system of claim 2, characterized in that the supporting component comprises a first gear (13), two swinging rods (14) are arranged on two sides of the first gear (13), one of the two swinging rods (14) is fixedly connected with the first gear (13), the other swinging rod is rotatably connected with the mounting seat (12), the two swinging rods (14) are rotatably connected with the clamping block (15), the two swinging rods (14), the clamping block (15) and the mounting seat (12) form a parallelogram structure, a spring (17) is arranged between one swinging rod (14) and the mounting seat (12), and the spring (17) is always in a compressed state, and the two first gears (13) of the supporting components of the two clamping blocks (15) are meshed with each other.
4. An aircraft engine split blade surface precision treatment system according to claim 1, characterized in that the clamping mechanisms are provided in at least three and are equally spaced in the axial direction of the drive shaft (7).
5. The aircraft engine split blade surface precision processing system of claim 1, characterized in that, the lifting unit includes a cam (26), a guide post (27) is fixedly connected to the top of the cam (26), the outer wall of the guide post (27) has a groove extending along the axial direction, a sliding sleeve (28) matched with the groove is arranged on the outer side of the guide post (27), a rotating disc (29) is fixedly connected to the outer side of the sliding sleeve (28), the plurality of movable magnetic poles (30) are annularly and uniformly distributed on the top of the rotating disc (29), an adjusting rod (31) is rotatably connected to the side wall inside the housing (24), and balls (32) are embedded in the top end of the adjusting rod (31) and the side surface close to the cam (26).
6. The aircraft engine split blade surface precision processing system of claim 5, wherein the ball (32) at the top end of the adjusting rod (31) is in rolling contact with the top of the rotary disc (29), a plurality of balls (32) are arranged on the side surface of the adjusting rod (31) and are in rolling contact with the cam (26), and the outer periphery of the cam (26) is in a circular arc structure.
7. An aircraft engine split blade surface precision processing system according to claim 5, characterized in that the movable magnetic pole (30) is of a fan-shaped structure, the fixed magnetic pole (23) is of a rectangular structure, and the area of the fixed magnetic pole (23) is larger than that of the rotary disk (29).
8. The aircraft engine split blade surface precision processing system of claim 1, characterized in that a sealing door (5) is arranged on the side surface of the cylinder (4), support pieces (6) are arranged on both sides of the sealing door (5), the support pieces (6) are elastic telescopic rods, and a feeding port and a discharging port are arranged on one side of the cylinder (4) close to the bracket (3).
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