CN108161599A - A kind of self- steering bend pipe inner surface magnetic grinder and method - Google Patents
A kind of self- steering bend pipe inner surface magnetic grinder and method Download PDFInfo
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- CN108161599A CN108161599A CN201810025001.XA CN201810025001A CN108161599A CN 108161599 A CN108161599 A CN 108161599A CN 201810025001 A CN201810025001 A CN 201810025001A CN 108161599 A CN108161599 A CN 108161599A
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- magnetic
- bend pipe
- magnetic pole
- rack
- rotary frame
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Classifications
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/40—Single-purpose machines or devices for grinding tubes internally
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention relates to a kind of self- steering bend pipe inner surface magnetic grinder and method, described device includes rotary drive mechanism, keeps rack, rotary frame, magnetic pole clamping device and be oriented to walking mechanism；The holding rack and rotary frame are annular element, are set in bend pipe periphery；With rack is kept to be rotatably coupled, rotary frame can rotate in a circumferential direction rotary frame under the driving of rotary drive mechanism around bend pipe；It keeps setting guiding walking mechanism in rack, in the case where being oriented to walking mechanism and driving, magnetic grinder can be moved integrally along bending axis direction；Set magnetic pole clamping device on rotary frame, magnetic pole in magnetic pole clamping device and the magnetic abrasive being filled in bend pipe coordinate, and realize the magnetic grinding to bend pipe inner surface.The present invention can adapt to the inner surface finishing of various irregular shape bend pipes, and apparatus structure is simple, and easy to operate, high in machining efficiency, processing cost is low.
Description
Technical field
The present invention relates to Magnetic Force Grinding Technology field more particularly to a kind of self-conductances for being suitable for having irregular curved shape
To bend pipe inner surface magnetic grinder and method.
Background technology
With the development of the high-tech sectors such as aerospace, to adapt to complicated small space inside equipment, meet and use need
It asks, frequently with the small irregular shape bend pipe of duty ratio；But since bend pipe shape is extremely complex, conventional machining process is difficult to protect
The inner surface quality of part is demonstrate,proved, often can generate fold, pit and micro-crack extension, and curved in the inner surface at elbow curvature
Tube cavity rough surface is uneven, causes when liquid or gas stream are out-of-date, can generate turbulent flow, vibration and perishable, make the machine of bend pipe
Tool hydraulic performance decline causes its working performance unstable, power drop.
Chinese patent application No. is 201420257248.1 discloses " a kind of bend pipe inner surface magnetic grinding polishing machine ",
Using six axis joint formula industrial machinery human bodies and servo motor, the picture signal of acquisition is sent to robot control by camera
Computer processed, is calculated by program, detects the center line of bend pipe workpiece and the outer diameter of bend pipe in real time, and drive six-shaft industrial machine
Human body drives magnetic pole head to be moved along bend pipe center line, at the same time, when magnetic pole rotary components rotate, is distributed in outside bend pipe
The rotating excitation field that is formed of permanet magnet by the magnetic abrasive for driving bend pipe inner surface and static bend pipe inner surface generation phase
To movement and friction, so as to fulfill the polishing treatment to bend pipe inner surface.Not only equipment manufacturing cost is expensive for the technical solution, but also
It needs to carry out simulation calculating to the shape track of bend pipe, it is not only complicated for operation, but also the technology of operating personnel is required high；Cause
High processing costs, efficiency are low.
Invention content
The present invention provides a kind of self- steering bend pipe inner surface magnetic grinder and methods, can adapt to various irregular
The inner surface finishing of shape bend pipe, and apparatus structure is simple, easy to operate, high in machining efficiency, processing cost is low.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of self- steering bend pipe inner surface magnetic grinder, including rotary drive mechanism, keep rack, rotary frame,
Magnetic pole clamping device and guiding walking mechanism；The holding rack and rotary frame are annular element, are set in bend pipe periphery；
With rack is kept to be rotatably coupled, rotary frame can circumferentially revolve rotary frame under the driving of rotary drive mechanism around bend pipe
Turn；It keeps setting guiding walking mechanism in rack, in the case where being oriented to walking mechanism and driving, magnetic grinder can be integrally along bend pipe axis
It moves in line direction；Set magnetic pole clamping device on rotary frame, magnetic pole in magnetic pole clamping device and the magnetism being filled in bend pipe
Abrasive material realizes the magnetic grinding to bend pipe inner surface.
The rotary drive mechanism includes speed regulating motor and right angle gear box assembly；Right angle gear box assembly includes right angle case
Body, driving shaft and output shaft in right angle babinet, the wherein power output shaft of one end of driving shaft and speed regulating motor connect
It connects, the other end sets driving bevel gear and the passive bevel gear engaged transmission of output shaft one end, output shaft other end installation driving cog
Wheel；Clutch shaft bearing is set on driving shaft, clutch shaft bearing is installed close to driving bevel gear side, is set bushing on the outside of clutch shaft bearing, is passed through
Interior snap ring shaft end is fixed；Driving shaft external part connect transmission with speed regulating motor power output shaft by shaft coupling；Output shaft with it is straight
Second bearing is set between the babinet of angle, right angle babinet one end of output shaft side sets ring flange for rack is kept to consolidate by bolt
Fixed connection.
The outer ring of the rotary frame sets the gear teeth and is engaged with the transmission gear in rotary drive mechanism, and can be in driving cog
It is rotated under the drive of wheel around central axis, the inner ring of rotary frame sets circular orbit；It keeps being uniformly arranged in the circumferential direction on the inside of rack
Multiple adjustable diameter and screw adjusting buttons；Adjustable diameter and screw adjusting button is made of eccentric shaft and taper bearing, is threaded through and is kept in rack in the middle part of eccentric shaft,
One end installation taper bearing of eccentric shaft, the outside of taper bearing is fixed by bearing (ball) cover and soket head cap screw；Rotary frame
During rotation, multiple taper bearings are rolled along the circular orbit on rotary frame, realize rotary frame with the opposite of rack is kept to turn
It is dynamic；The other end of eccentric shaft passes through spring washer and nut check.
The magnetic pole clamping device includes magnetic pole frame, magnetic pole and pressing plate, and the rotary frame is away from the side for keeping rack
Multiple magnetic pole locating slots are circumferentially opened up, magnetic pole frame is fixed in magnetic pole locating slot；Magnetic pole installation is radially opened up on magnetic pole frame
Slot, magnetic pole are placed in magnetic pole mounting groove, and one end of magnetic pole, and can be radially adjusted the distance between with bend pipe close to bend pipe,
It is fixed between magnetic pole and magnetic pole frame by pressing plate and bolt.
The guiding walking mechanism includes traveling wheel, wheel carrier and screw rod；Traveling wheel is fixed on by wheel carrier and kept in rack
Side is fixed between wheel carrier and holding rack by screw rod；Multiple traveling wheels, multiple walkings are circumferentially evenly arranged with along rack is kept
Wheel is contacted with outer surface of bent pipe, and one of traveling wheel is positive transport wheel, remaining is passive walking wheel, in positive transport wheel
If wheel hub motor and battery.
Displacement sensor is set in the holding rack, grinds stroke for detecting, displacement sensor passes through with wheel hub motor
Chip linkage is controlled, realizes reciprocating movement of the magnetic grinder along bending axis direction.
The magnetic pole is 2 pairs, and 2 magnetic poles in each pair of magnetic grade are disposed adjacent, i.e. 2 N in 4 magnetic poles are extremely adjacent, 2
S is extremely adjacent, each 90 ° of settings in pole piece spacing.
A kind of self- steering bend pipe inner surface magnetic grinding method based on described device, includes the following steps：
1) bend pipe of preprocessing is worn in the loop configuration of magnetic grinder, and sets initial position；To bend pipe
Middle injection magnetic abrasive and lapping liquid；The radial position of each magnetic pole is adjusted, makes each magnetic pole identical with the distance of bend pipe；Adjustment is each
The position of traveling wheel makes each traveling wheel be contacted with outer surface of bent pipe；By the way that chip is controlled to set travel distance, which is
Magnetic abrasive finishing section length for bend pipe inner surface；The patch of each taper bearing and circular orbit is adjusted by eccentric rotation axis
Conjunction degree ensures to keep rack and stability during rotary frame relative rotation；
2) start speed regulating motor, speed regulating motor exports power and passes to driving shaft by shaft coupling, the active on driving shaft
Bevel gear and the passive bevel gear engaged transmission on output shaft, and transmission gear is imparted power to, transmission gear and whirler
Gear ring engaged transmission on the outside of frame, drives rotary frame to be rotated around bend pipe；Multiple magnetic poles rotation on rotary frame, the rotation of generation
The magnetic abrasive turned in field drives bend pipe is ground polishing to bend pipe inner surface；
3) according to bend pipe material and pipe diameter size, speed regulating motor sets different rotating speeds；According to the size of bend pipe caliber, lead to
The radial position for crossing adjustment magnetic pole determines that the distance between magnetic pole and outer surface of bent pipe grind spacing, is maintained at grinding spacing
1~2mm；
4) during magnetic grinding, entire magnetic grinder is driven to be moved along the axis direction of bend pipe by guiding walking mechanism
It is dynamic, grinding stroke is detected by displacement sensor in moving process, when magnetic grinder reaches specified terminal from initial position
During position, a magnetic grinding process is passed through in the magnetic abrasive finishing area in entire bend pipe；Control chip controls wheel hub motor
Traveling wheel is rotated backward, so repeatedly, realizes reciprocating motion of the magnetic grinder in bend pipe magnetic abrasive finishing area；
5) external rotating excitation field drive and double action along bend pipe axial feed motion under, magnetic abrasive is having
Make spiral helicine compound motion in the bend pipe for having irregular curved shape, be finally completed the skin processing of bend pipe inner surface.
Compared with prior art, the beneficial effects of the invention are as follows：
1) the inner surface finishing of various irregular shape bend pipes is can adapt to, and apparatus structure is simple, it is easy to operate；Add
Work is efficient, and processing cost is low；
2) it is contacted by traveling wheel with outer surface of bent pipe and realizes magnetic grinder moving along bending axis direction, and
The processing to magnetic abrasive finishing area is realized in moving process；Traveling wheel is adjusted by screw rod, easy to adjust；
3) laminating degree of each taper bearing and circular orbit can be adjusted by eccentric rotation axis, ensures to keep rack
Stability when being relatively rotated with rotary frame ensures the stabilization in magnetic field while realizing magnetic grinding, and is further ensured that magnetic
The stabilization of power attrition process process and processing quality；
4) by adjusting the radial position of each magnetic pole, the adjustment of grinding spacing is realized, it can be achieved that unlike material, different pipes
The attrition process of diameter bend pipe inner surface.
Description of the drawings
Fig. 1 is a kind of front view of self- steering bend pipe inner surface magnetic grinder of the present invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the A-A sectional views in Fig. 1.
Fig. 4 is the B portions enlarged drawing in Fig. 2.
In figure：1. 5. screw rod of speed regulating motor 2. right angle gear box assembly, 3. magnetic pole, 4. traveling wheel, 6. magnetic pole frame 7. revolves
8. bend pipe of frame, 9. pressing plate, 10. wheel carrier 11. of making a connection keeps 12. bearing (ball) cover of rack, 13. taper bearing, 14. eccentric shaft
15. 19. output shaft of spring washer 16. nut, 17. soket head cap screw, 18. adjustable diameter and screw adjusting button, 20. transmission gear 21. second
Snap ring 28. in 25. clutch shaft bearing of bearing 22. right-angle gear box, 23. ring flange, 24. driving bevel gear, 26. bushing 27.
29. passive 30. magnetic abrasive of bevel gear of driving shaft
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As Figure 1-Figure 4, a kind of self- steering bend pipe inner surface magnetic grinder of the present invention drives including rotation
Mechanism keeps rack 11, rotary frame 7, magnetic pole clamping device and is oriented to walking mechanism；The holding rack 11 and rotary frame
7 be annular element, is set in 8 periphery of bend pipe；For rotary frame 7 with rack 11 is kept to be rotatably coupled, rotary frame 7 can
It rotates in a circumferential direction under the driving of rotary drive mechanism around bend pipe 8；It keeps setting guiding walking mechanism in rack 11, is being oriented to vehicle with walking machine
Under structure drives, magnetic grinder can be moved integrally along 8 axis direction of bend pipe；Magnetic pole clamping device, magnetic are set on rotary frame 7
Magnetic pole 3 in the clamping device of pole coordinates with the magnetic abrasive 30 being filled in bend pipe 8, realizes and the magnetic force of 8 inner surface of bend pipe is ground
Mill.
As shown in Figure 2 and Figure 3, the rotary drive mechanism includes speed regulating motor 1 and right angle gear box assembly 2；Right angle gear
Box assembly 2 include right angle babinet, the driving shaft 28 in right angle babinet and output shaft 19, wherein one end of driving shaft 28 with
The power output axis connection of speed regulating motor 1, the other end sets driving bevel gear 24 and the passive bevel gear 29 of 19 one end of output shaft is nibbled
Close transmission, 19 other end of output shaft installation transmission gear 20；Clutch shaft bearing 25 is set on driving shaft 28, clutch shaft bearing 25 is close to actively
24 side of bevel gear is installed, and 25 outside of clutch shaft bearing sets bushing 26, is fixed by interior 27 shaft end of snap ring；28 external part of driving shaft with
1 power output shaft of speed regulating motor is connected by shaft coupling and is driven；Second bearing 21 is set between output shaft 19 and right angle babinet, is exported
Right angle babinet one end of 19 side of axis sets ring flange 23 for rack 11 is kept to be bolted to connection.
As shown in Figure 2, Figure 4 shows, the outer ring of the rotary frame 7 sets the gear teeth and is nibbled with the transmission gear 20 in rotary drive mechanism
It closes, and can be rotated under the drive of transmission gear 20 around central axis, the inner ring of rotary frame 7 sets circular orbit；Holding machine
11 inside of frame is uniformly arranged in the circumferential direction multiple adjustable diameter and screw adjusting buttons 18；Adjustable diameter and screw adjusting button 18 is by 13 groups of eccentric shaft 14 and taper bearing
Into the middle part of eccentric shaft 14, which is threaded through, to keep in rack 11, one end installation taper bearing 13 of eccentric shaft 14, taper bearing 13
Outside is fixed by bearing (ball) cover 12 and soket head cap screw 17；When rotary frame 7 rotates, multiple taper bearings 13 are along rotary frame
Circular orbit on 7 rolls, and realizes rotary frame 7 with keeping the relative rotation of rack 11；The other end of eccentric shaft 14 passes through bullet
Spring washer 15 and nut 16 are locked.
As shown in Figure 1 and Figure 2, the magnetic pole clamping device includes magnetic pole frame 6, magnetic pole 3 and pressing plate 9, the rotary frame 7
Away from the side of rack 11 is kept circumferentially to open up multiple magnetic pole locating slots, magnetic pole frame 6 is fixed in magnetic pole locating slot；Magnetic pole frame
Magnetic pole mounting groove is radially opened up on 6, magnetic pole 3 is placed in magnetic pole mounting groove, and one end of magnetic pole 3, and can be along diameter close to bend pipe 8
To the distance between bend pipe 8 is adjusted, fixed between magnetic pole 3 and magnetic pole frame 6 by pressing plate 9 and bolt.
As shown in Figure 1, the guiding walking mechanism includes traveling wheel 4, wheel carrier 10 and screw rod 5；Traveling wheel 4 passes through wheel carrier 10
It is fixed on and keeps 11 inside of rack, fixed between wheel carrier 10 and holding rack 11 by screw rod 5；It is circumferential uniformly along holding rack 11
Multiple traveling wheels 4 are provided with, multiple traveling wheels 4 are contacted with 8 outer surface of bend pipe, and one of traveling wheel 4 is positive transport wheel,
Remaining is passive walking wheel, and wheel hub motor and battery are set in positive transport wheel.
Displacement sensor is set in the holding rack 11, grinds stroke for detecting, displacement sensor leads to wheel hub motor
The linkage of control chip is crossed, realizes reciprocating movement of the magnetic grinder along 8 axis direction of bend pipe.
As shown in Figure 1, the magnetic pole 3 is 2 pairs, 2 magnetic poles 3 in each pair of magnetic grade are disposed adjacent, i.e. 2 in 4 magnetic poles 3
A N is extremely adjacent, and 2 S are extremely adjacent, and each magnetic pole 3 is set at 90 ° intervals.
A kind of self- steering bend pipe inner surface magnetic grinding method based on described device, includes the following steps：
1) bend pipe of preprocessing 8 is worn in the loop configuration of magnetic grinder, and sets initial position；To bend pipe
Magnetic abrasive and lapping liquid are injected in 8；The radial position of each magnetic pole 3 is adjusted, makes each magnetic pole 3 identical with the distance of bend pipe 8；It adjusts
The position of whole each traveling wheel 4 makes each traveling wheel 4 be contacted with 8 outer surface of bend pipe；By the way that chip is controlled to set travel distance,
The distance is the magnetic abrasive finishing section length of 8 inner surface of bend pipe；Each taper bearing 13 is adjusted by eccentric rotation axis 14
With the laminating degree of circular orbit, ensure to keep rack 11 and the stability during relative rotation of rotary frame 7；
2) start speed regulating motor 1, speed regulating motor 1 exports power and passes to driving shaft 28 by shaft coupling, on driving shaft 28
Driving bevel gear 24 and output shaft 19 on 29 engaged transmission of passive bevel gear, and impart power to transmission gear 20, pass
Moving gear 20 and the gear ring engaged transmission in 7 outside of rotary frame, drive rotary frame 7 to be rotated around bend pipe 8；On rotary frame 7
Multiple magnetic poles 3 rotate, and the magnetic abrasive 30 in the rotating excitation field driving bend pipe 8 of generation is ground polishing to 8 inner surface of bend pipe；
3) according to 8 material of bend pipe and pipe diameter size, speed regulating motor 1 sets different rotating speeds；According to the big of 8 caliber of bend pipe
It is small, it determines that the distance between magnetic pole 3 and 8 outer surface of bend pipe grind spacing by adjusting the radial position of magnetic pole 3, makes between grinding
Away from being maintained at 1~2mm；
4) during magnetic grinding, axis direction of the entire magnetic grinder along bend pipe 8 is driven by guiding walking mechanism
It is mobile, grinding stroke is detected by displacement sensor in moving process, is specified eventually when magnetic grinder is reached from initial position
During point position, a magnetic grinding process is passed through in the magnetic abrasive finishing area in entire bend pipe 8；Control chip controls wheel hub electricity
Machine rotates backward traveling wheel 4, so repeatedly, realizes reciprocating motion of the magnetic grinder in bend pipe magnetic abrasive finishing area；
5) external rotating excitation field drive and double action along 8 axial feed motion of bend pipe under, magnetic abrasive 30 exists
Make spiral helicine compound motion in bend pipe 8 with irregular curved shape, be finally completed the skin processing of 8 inner surface of bend pipe.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of self- steering bend pipe inner surface magnetic grinder, which is characterized in that including rotary drive mechanism, keep rack,
Rotary frame, magnetic pole clamping device and guiding walking mechanism；The holding rack and rotary frame are annular element, are set in
Bend pipe periphery；Rotary frame with keep rack be rotatably coupled, rotary frame can under the driving of rotary drive mechanism around
Bend pipe rotates in a circumferential direction；It keeps setting guiding walking mechanism in rack, in the case where being oriented to walking mechanism and driving, magnetic grinder can be whole
Body is moved along bending axis direction；Set magnetic pole clamping device on rotary frame, the magnetic pole in magnetic pole clamping device is curved with being filled in
Magnetic abrasive cooperation in pipe, realizes the magnetic grinding to bend pipe inner surface.
A kind of 2. self- steering bend pipe inner surface magnetic grinder according to claim 1, which is characterized in that the rotation
Driving mechanism includes speed regulating motor and right angle gear box assembly；Right angle gear box assembly includes right angle babinet, mounted on right angle case
The power output axis connection of driving shaft and output shaft in body, wherein one end of driving shaft and speed regulating motor, the other end are set actively
Bevel gear and the passive bevel gear engaged transmission of output shaft one end, output shaft other end installation transmission gear；Is set on driving shaft
One bearing, clutch shaft bearing are installed close to driving bevel gear side, are set bushing on the outside of clutch shaft bearing, are fixed by interior snap ring shaft end；
Driving shaft external part connect transmission with speed regulating motor power output shaft by shaft coupling；Second is set between output shaft and right angle babinet
Bearing, right angle babinet one end of output shaft side set ring flange for rack is kept to be bolted to connection.
A kind of 3. self- steering bend pipe inner surface magnetic grinder according to claim 1, which is characterized in that the rotation
The outer ring of rack sets the gear teeth and is engaged with the transmission gear in rotary drive mechanism, and can be under the drive of transmission gear around center
Axis rotates, and the inner ring of rotary frame sets circular orbit；It keeps being uniformly arranged in the circumferential direction multiple adjustable diameter and screw adjusting buttons on the inside of rack；Spiral shell
Rotation adjusting knob is made of eccentric shaft and taper bearing, is threaded through and is kept in rack in the middle part of eccentric shaft, one end installation of eccentric shaft
Taper bearing, the outside of taper bearing are fixed by bearing (ball) cover and soket head cap screw；When rotary frame rotates, multiple taper shafts
It holds along the circular orbit on rotary frame and rolls, realize rotary frame with keeping the relative rotation of rack；The other end of eccentric shaft
Pass through spring washer and nut check.
A kind of 4. self- steering bend pipe inner surface magnetic grinder according to claim 1, which is characterized in that the magnetic pole
Clamping device includes magnetic pole frame, magnetic pole and pressing plate, and the rotary frame circumferentially opens up multiple magnetic away from the side of holding rack
Pole locating slot, magnetic pole frame are fixed in magnetic pole locating slot；Magnetic pole mounting groove is radially opened up on magnetic pole frame, magnetic pole is placed in magnetic pole peace
In tankage, one end of magnetic pole, and can be radially adjusted the distance between with bend pipe close to bend pipe, leads between magnetic pole and magnetic pole frame
It crosses pressing plate and bolt is fixed.
A kind of 5. self- steering bend pipe inner surface magnetic grinder according to claim 1, which is characterized in that the guiding
Walking mechanism includes traveling wheel, wheel carrier and screw rod；Traveling wheel is fixed on by wheel carrier and kept on the inside of rack, and wheel carrier is with keeping rack
Between fixed by screw rod；Along rack is kept circumferentially to be evenly arranged with multiple traveling wheels, multiple traveling wheels are and outer surface of bent pipe
Contact, one of traveling wheel are positive transport wheel, remaining is passive walking wheel, and wheel hub motor and electricity are set in positive transport wheel
Pond.
A kind of 6. self- steering bend pipe inner surface magnetic grinder according to claim 1, which is characterized in that the holding
Displacement sensor is set in rack, stroke is ground for detecting, displacement sensor, by the way that chip is controlled to link, is realized with wheel hub motor
Reciprocating movement of the magnetic grinder along bending axis direction.
A kind of 7. self- steering bend pipe inner surface magnetic grinder according to claim 1, which is characterized in that the magnetic pole
It it is 2 pairs, 2 magnetic poles in each pair of magnetic grade are disposed adjacent, i.e. 2 N in 4 magnetic poles are extremely adjacent, and 2 S are extremely adjacent, each magnetic pole
It is set at 90 ° intervals.
A kind of 8. self- steering bend pipe inner surface magnetic grinding method based on claim 1 described device, which is characterized in that including
Following steps：
1) bend pipe of preprocessing is worn in the loop configuration of magnetic grinder, and sets initial position；It is noted into bend pipe
Enter magnetic abrasive and lapping liquid；The radial position of each magnetic pole is adjusted, makes each magnetic pole identical with the distance of bend pipe；Adjust each walking
The position of wheel makes each traveling wheel be contacted with outer surface of bent pipe；By the way that chip is controlled to set travel distance, the distance is as curved
The magnetic abrasive finishing section length of pipe internal surface；Journey is bonded by what eccentric rotation axis adjusted each taper bearing and circular orbit
Degree ensures to keep rack and stability during rotary frame relative rotation；
2) start speed regulating motor, speed regulating motor exports power and passes to driving shaft by shaft coupling, the active umbrella tooth on driving shaft
Wheel and the passive bevel gear engaged transmission on output shaft, and transmission gear is imparted power to, outside transmission gear and rotary frame
The gear ring engaged transmission of side, drives rotary frame to be rotated around bend pipe；Multiple magnetic poles rotation on rotary frame, the rotary magnetic of generation
Magnetic abrasive in field driving bend pipe is ground polishing to bend pipe inner surface；
3) according to bend pipe material and pipe diameter size, speed regulating motor sets different rotating speeds；According to the size of bend pipe caliber, pass through tune
The radial position of whole magnetic pole determines that the distance between magnetic pole and outer surface of bent pipe grind spacing, make grinding spacing be maintained at 1~
2mm；
4) during magnetic grinding, entire magnetic grinder is driven to be moved along the axis direction of bend pipe by guiding walking mechanism,
Grinding stroke is detected by displacement sensor in moving process, when magnetic grinder reaches specified final position from initial position
When, a magnetic grinding process is passed through in the magnetic abrasive finishing area in entire bend pipe；Control chip controls wheel hub motor makes row
It walks wheel to rotate backward, so repeatedly, realizes reciprocating motion of the magnetic grinder in bend pipe magnetic abrasive finishing area；
5) external rotating excitation field drive and double action along bend pipe axial feed motion under, magnetic abrasive is not with
Make spiral helicine compound motion in the bend pipe of regular curved shape, be finally completed the skin processing of bend pipe inner surface.
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| CN201810025001.XA CN108161599A (en) | 2018-01-11 | 2018-01-11 | A kind of self- steering bend pipe inner surface magnetic grinder and method |
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| CN201810025001.XA CN108161599A (en) | 2018-01-11 | 2018-01-11 | A kind of self- steering bend pipe inner surface magnetic grinder and method |
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| CN108581697A (en) * | 2018-07-26 | 2018-09-28 | 国网青海省电力公司海东供电公司 | Aluminium hydraulic pressed connecting pipe burr removal device |
| CN108857203A (en) * | 2018-08-20 | 2018-11-23 | 安徽科技学院 | A kind of circular welder keeping the temperature tube head |
| CN108972160A (en) * | 2018-08-03 | 2018-12-11 | 辽宁科技大学 | A kind of complexity axis bend pipe surfaces externally and internally magnetic abrasive finishing device and method |
| CN109015280A (en) * | 2018-09-12 | 2018-12-18 | 辽宁科技大学 | Any axis variable diameter complexity bend pipe surfaces externally and internally magnetic grinder in space and method |
| CN109352508A (en) * | 2018-12-19 | 2019-02-19 | 湖北三江航天万山特种车辆有限公司 | A kind of magnetic force abnormal shape inside pipe wall polissoir |
| CN109693148A (en) * | 2019-03-06 | 2019-04-30 | 香港理工大学 | A kind of equipment for mass polishing workpiece |
| CN111438568A (en) * | 2020-04-21 | 2020-07-24 | 崔路飞 | Finish machining process for copper alloy condenser pipe of air conditioner condenser |
| CN112139977A (en) * | 2019-06-27 | 2020-12-29 | 新乡航空工业(集团)有限公司 | Magnetic grinding device for machining valve core of ball valve |
| CN112222955A (en) * | 2020-10-10 | 2021-01-15 | 中核核电运行管理有限公司 | Device and method for polishing interior of non-magnetic pipeline |
| CN112676922A (en) * | 2020-12-23 | 2021-04-20 | 南京航太机电有限公司 | Magnetic grinding device and method for vibrating composite elliptical motion |
| CN117300748A (en) * | 2023-11-30 | 2023-12-29 | 内蒙古工业大学 | Alternating magnetic field magnetic grinding device |
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Application publication date: 20180615 |