CN106363526B - A kind of High Voltage Circuit Breaker Contacts burr remover and its burr removing method - Google Patents
A kind of High Voltage Circuit Breaker Contacts burr remover and its burr removing method Download PDFInfo
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- CN106363526B CN106363526B CN201610778987.9A CN201610778987A CN106363526B CN 106363526 B CN106363526 B CN 106363526B CN 201610778987 A CN201610778987 A CN 201610778987A CN 106363526 B CN106363526 B CN 106363526B
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- magnetic
- magnetorheological
- working fluid
- iron yoke
- liquid container
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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
- 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
- B24B31/10—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 other means for tumbling of work
- B24B31/102—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 other means for tumbling of work using an alternating magnetic field
-
- 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
Abstract
The invention discloses a kind of High Voltage Circuit Breaker Contacts burr remover and its burr removing methods, belong to technical field of surface.It is made of field generator for magnetic, work piece holder, magnetorheological processing liquid container, driving device, the magnetic field intensity that D.C. regulated power supply control in field generator for magnetic generates so that the working fluid in magnetorheological processing liquid container is mutually deformed into the flexible grinding layer of Bingham class solid states.Work piece holder is made of homemade Mohs cone bar, flexible sheet shaft coupling, insulating bushing, clamp body；Driving device is immersed in magnetorheological working fluid high speed by work piece holder band moving contact part and rotates, and impact in working fluid, under ablation, realizes that contact opens the removal process of valve seamed edge burr.High Voltage Circuit Breaker Contacts burr remover is simple in structure, and manufacture is at low cost, high in machining efficiency；And magnetorheological processing method is used, have the characteristics that shape is adaptable, machined surface quality is high and surface damage is small.
Description
Technical field
The present invention relates to technical field of surface, specifically, being related to a kind of High Voltage Circuit Breaker Contacts burr remover
And its burr removing method.
Background technology
High-voltage circuitbreaker is as the core equipment in transmission system, and the safety and reliability of operation is to entire power train
System has vital meaning.Critical component of the High Voltage Circuit Breaker Contacts as high-voltage circuitbreaker, in the operation of breaker
It is responsible for the vital task of on-off circuit and load current, working performance directly affects the steady of high voltage power transmisson system
Qualitative and safety.
High Voltage Circuit Breaker Contacts are in integrally revolving body, open valve thin-wall construction, however contact opens the Burr Problem of valve seamed edge but
Annoying high-voltage circuitbreaker manufacturing enterprise always.Many enterprises use the process of " hot extrusion molding+machining " at present,
And in actual cut process, it is contemplated that contact opens the processing efficiency of valve and the overall performance of contact, usually using saw blade
Milling cutter carrys out the direct single petal slot of one-pass molding.Therefore, it frequently can lead to generate on petal slot seamed edge in contact Milling Process
The burr largely to differ in size.The presence of small burr not only influences the silver-plated quality of contact surface, and then influences its electric conductivity
Can, local cusp electric discharge is more easily caused, leads to apparatus insulated failure, punctures vacuum interrupter, contact is caused to fail.High pressure open circuit
Device contact once fails, it is possible to directly result in breaker explosion, in turn result in the major accident of large-area power-cuts, therefore and lead
The direct or indirect influence caused and economic loss are difficult to estimate.
Patent CN201320634566.0 discloses a kind of semi-automatic deburring machine, and contact pin is made to penetrate on Shell of circuit breaker
Through hole, so as to which the burr on Shell of circuit breaker be removed, but contact pin is fragile, and burr removal consistency is poor.Patent of invention
CN201310734376.0 discloses a kind of mixed-powder and its application method of quick removal sheet electrical contact punching flash, will
Electrical contact blank is packed into centrifugal grinder with mixed-powder and is ground, and is handled by dilute sulfuric acid pickling processes, ultrasonic cleaning,
Again through drying, drying, being cooled to finished product, whole process is very cumbersome, is not suitable for actual production.
The Burr Problem of valve seamed edge is opened for contact, major part high-voltage circuitbreaker manufacturing enterprise still relies on operator at present
The method of member's manual grinding is handled, and larger cost pressure will necessarily be caused to enterprise.Manual grinding method removes flash removed
Effect and efficiency and the qualification of operating personnel have very big relationship, and there are consistency is poor, qualification rate is low, processing efficiency is low
Problem；In addition, in burr removal process, the metallic dust being removed drifts in air, damages operating personnel's health,
Serious pollution ambient enviroment.
Invention content
In order to avoid the shortcomings of the prior art, the present invention propose a kind of High Voltage Circuit Breaker Contacts burr remover and its
Burr removing method.The device and its burr removing method ensure for the burr for the opening valve seamed edge removal of High Voltage Circuit Breaker Contacts
Except effect and the consistency of machining accuracy, and processing efficiency is improved, improve Active workings working environment.
The technical solution adopted by the present invention to solve the technical problems is:High Voltage Circuit Breaker Contacts burr remover, by magnetic
Field generating means, work piece holder, magnetorheological processing liquid container, driving device and D.C. regulated power supply composition, field generator for magnetic
Generate additional high-intensity magnetic field so that the magnetorheological working fluid in magnetorheological processing liquid container is mutually deformed into Bingham class solid states
Flexible grinding layer, driving device drives contact of breaker to be immersed in magnetorheological working fluid high speed to rotate by work piece holder,
Realize that contact opens the deburring process of valve seamed edge, it is characterised in that the field generator for magnetic include electromagnetic core, electromagnetic coil,
Iron yoke side plate, iron yoke side bottom plate, iron yoke bottom plate, every magnetic pedestal, every backing plate, magnetorheological processing liquid container, the electromagnetism in magnetic
Iron core is cylinder, and one end is plane, and the other end is tightly attached to magnetorheological working fluid container outer wall face, electromagnet for arc-shaped fracture
Core is installed with electromagnetic coil cooperation, and two groups of electromagnetic cores are symmetrically fixed on magnetorheological processing liquid container and iron yoke side with electromagnetic coil
Between plate, two blocks of iron yoke side plates are respectively and vertically fixed at two pieces of iron yoke sides bottom plate one end, and iron yoke side bottom plate is mounted on every magnetic pedestal
On, and form iron yoke circuit with iron yoke bottom plate；Described every magnetic pedestal is cuboid, every being provided with arc T-slot on magnetic pedestal, is used
Magnetic pole after installation is sliding over, and realize adjustable angle；
The work piece holder is made of Mohs cone bar, flexible sheet shaft coupling, insulating bushing, clamp body, contact of breaker,
Described Mohs cone bar one end is connect for tapered rod with lathe mohs tapered bore, and the other end is mounted on flexible sheet shaft coupling for connecting rod
Upper end installs insulating bushing additional between flexible sheet shaft coupling and Mohs cone bar, and flexible sheet shaft coupling is touched with clamp body, breaker
Head connection is fixed；
The D.C. regulated power supply is located at the side of iron yoke bottom plate, D.C. regulated power supply respectively with two electromagnetic coils one
End is connected by conducting wire, to control the magnetic field for being passed through voltage or the electric current at electromagnetic coil both ends to control electromagnetic coil generation strong
Degree.
It is a kind of using the High Voltage Circuit Breaker Contacts burr remover carry out deburring method, it is characterised in that including with
Lower step:
Step 1. is by field generator for magnetic, magnetorheological processing liquid container with being fixedly mounted on upright drill processing every magnetic pedestal
On platform, ensure that field generator for magnetic is steady；
Step 2. is made of 2A21 aluminium sheets every magnetic pedestal, every processing arc T-slot on magnetic pedestal, by iron yoke side bottom plate
Be symmetrically mounted on centered on magnetorheological processing liquid container every on magnetic pedestal, and form one end fix, one end adjustable angle one
To magnetic pole, field circuit is formed, magnetic polar angle adjustable range is 120~180 °；
Work piece holder is connected to machine tool chief axis by step 3.；Wherein, Mohs cone pole-footing is customized according to machine tool chief axis hole taper, and one
It holds and is connect for MT4 Mohs cone bar with lathe mohs tapered bore, the connecting rod that the other end is diameter 24mm connects with flexible sheet shaft coupling
It connects；Install insulating bushing isolation electric current between flexible sheet shaft coupling and Mohs cone bar additional, insulating bushing material is polytetrafluoroethylene (PTFE)；
Step 4. prepares magnetorheological working fluid, and adjustment machine tool chief axis makes contact of breaker be totally submerged wherein, and in magnetic
Relatively close electromagnetic core in rheology processing liquid container, starts lathe to be stirred compared with the slow-speed of revolution, makes in magnetorheological working fluid
Abrasive grain uniformly disperse；
Step 5. adjusts machine spindle speed, opens D.C. regulated power supply, and adjust current strength, D.C. regulated power supply ginseng
Number is 250V × 8A, is passed through voltage or the electric current at electromagnetic coil both ends by control to control the magnetic field that electromagnetic coil generates strong
Degree；Magnetorheological working fluid is mutually deformed into Bingham class solid states under magnetic fields, the time required to setting processing；
After step 6. machines, D.C. regulated power supply is closed, after magnetorheological working fluid into after liquid condition, turns off machine
Bed main shaft takes out contact of breaker and is cleaned up with gasoline or petroleum ether；
Step 7. adjusts magnetic polar angle, the magnetic of field generator for magnetic according to workpiece actual processing demand and deburring effect
The abrasive concentration of rheology working fluid, machine spindle speed, the current strength of D.C. regulated power supply, process time each parameter repeat
Above-mentioned steps are processed.
Advantageous effect
High Voltage Circuit Breaker Contacts burr remover and its burr removing method proposed by the present invention, for High Voltage Circuit Breaker Contacts
The burr for opening valve seamed edge removal, ensure the consistency of removal effect and machining accuracy, and improve processing efficiency, improve operation ring
Border.High Voltage Circuit Breaker Contacts burr remover, by field generator for magnetic, work piece holder, magnetorheological processing liquid container, driving device
It is formed with D.C. regulated power supply, field generator for magnetic generates additional high-intensity magnetic field so that magnetorheological in magnetorheological processing liquid container
Working fluid is mutually deformed into the flexible grinding layer of Bingham class solid states, and driving device drives breaker to touch by work piece holder
Head is immersed in magnetorheological working fluid high speed rotation, realizes that contact opens the deburring process of valve seamed edge.
High Voltage Circuit Breaker Contacts burr remover and its burr removing method of the present invention, burr remover is simple in structure, manufacture
Cost is relatively low, easily operated, high in machining efficiency；And magnetorheological processing method is used, have that shape is adaptable, finished surface matter
The characteristics of amount height and small surface damage.It is gone especially for the revolving parts seamed edge small burr of High Voltage Circuit Breaker Contacts class
It removes, there is its original advantage.
Description of the drawings
Below in conjunction with the accompanying drawings with embodiment to a kind of High Voltage Circuit Breaker Contacts burr remover of the present invention and its deburring
Method is described in further detail.
Fig. 1 is High Voltage Circuit Breaker Contacts burr remover structure diagram of the present invention.
Fig. 2 is the field generator for magnetic iron yoke structure diagram of High Voltage Circuit Breaker Contacts burr remover of the present invention.
Fig. 3 a, Fig. 3 b are High Voltage Circuit Breaker Contacts burr remover of the present invention every magnetic base schematic diagram.
Fig. 4 is the work piece holder explosive view of High Voltage Circuit Breaker Contacts burr remover of the present invention.
Fig. 5 be the present invention field generator for magnetic magnetic polar angle be in 180 ° when machining sketch chart.
Fig. 6 be the present invention field generator for magnetic magnetic polar angle be in 150 ° when machining sketch chart.
Fig. 7 be the present invention field generator for magnetic magnetic polar angle be in 120 ° when machining sketch chart.
In figure:
1. 5. contact of breaker of Mohs cone bar 2. insulating bushing, 3. flexible sheet shaft coupling, 4. clamp body, 6. electromagnet
7. electromagnetic coil of core, 8. iron yoke side plate, 9. iron yoke side bottom plate, 10. iron yoke bottom plate 11. is every magnetic pedestal 12. every backing plate in magnetic
13. the magnetorheological processing 15. magnetorheological working fluid of liquid container of D.C. regulated power supply 14.
Specific embodiment
The present embodiment is a kind of High Voltage Circuit Breaker Contacts burr remover and its burr removing method.
Embodiment 1
Refering to Fig. 1~Fig. 7, the High Voltage Circuit Breaker Contacts burr remover of the present embodiment, by field generator for magnetic, workpiece clamp
Tool, magnetorheological processing liquid container, driving device and D.C. regulated power supply composition, field generator for magnetic generate additional high-intensity magnetic field, make
Obtain the flexible grinding layer that the magnetorheological working fluid in magnetorheological processing liquid container is mutually deformed into Bingham class solid states, driving
Device drives contact of breaker to be immersed in magnetorheological working fluid high speed rotation by work piece holder, realizes that contact opens valve seamed edge
Deburring process.Wherein, field generator for magnetic includes electromagnetic core 6, electromagnetic coil 7, iron yoke side plate 8, iron yoke side bottom plate 9, iron
Yoke bottom plate 10, every magnetic pedestal 11, every backing plate in magnetic 12, it is magnetorheological processing liquid container 14；Electromagnetic core 6 is cylindrical, one end
For plane, the other end is tightly attached to magnetorheological processing 14 outside wall surface of liquid container, electromagnetic core 6 and electromagnetic coil 7 for arc-shaped fracture
Cooperation installation, two groups of electromagnetic cores 6 and electromagnetic coil 7 are symmetrically fixed between magnetorheological processing liquid container 14 and iron yoke side plate 8,
Two blocks of iron yoke side plates 8 are respectively and vertically fixed at two pieces of 9 one end of iron yoke side bottom plate, and iron yoke side bottom plate 9 is mounted on every on magnetic pedestal 11,
And form iron yoke circuit with iron yoke bottom plate 10.It is cuboid every magnetic pedestal 11, every being provided with arc T-slot on magnetic pedestal, is used for
Magnetic pole after installation is sliding over, and realize adjustable angle.In the present embodiment, used 7 line footpath of electromagnetic coil is 1mm,
Number of ampere turns is 5000 circles, and internal diameter 120mm, outer diameter 200mm are sleeved on electromagnetic core 6.Used magnetorheological working fluid
14 outer diameter of container is 160mm, the iron cylinder of a height of 200mm, for holding magnetorheological working fluid 15.
Work piece holder is by Mohs cone bar 1, flexible sheet shaft coupling 3, insulating bushing 2, clamp body 4,5 groups of contact of breaker
Into, wherein, Mohs 1 one end of cone bar is connect for tapered rod with lathe mohs tapered bore, and Mohs cone 1 other end of bar is mounted on for connecting rod
3 upper end of flexible sheet shaft coupling installs insulating bushing 2, flexible sheet shaft coupling additional between flexible sheet shaft coupling 3 and Mohs cone bar 1
Device 3 connect fixation with clamp body 4, contact of breaker 5.2 material of insulating bushing is polytetrafluoroethylene (PTFE), to flexible sheet shaft coupling 3
Electric current isolation is carried out with Mohs cone bar 1, prevents the sensing current direction that 5 cutting magnetic induction line of contact of breaker generates in process
Machine motor.D.C. regulated power supply 13 be mounted on iron yoke bottom plate 10 side, D.C. regulated power supply 13 respectively with two electromagnetism
7 one end of coil is connected by conducting wire, is passed through voltage or the electric current at 7 both ends of electromagnetic coil to control electromagnetic coil 7 is controlled to produce
Raw magnetic field intensity, and then control the transition of magnetorheological working fluid 15.
In the present embodiment, driving device is transformed by a common upright drill of Z5140, for providing the fortune of workpiece
It is dynamic.Contact of breaker 5 is fixed on by work piece holder on vertical drilling spindle, and contact of breaker 5 is driven to do by machine tool chief axis
Rotary motion controls the processing efficiency of practical deburring by the control lathe speed of mainshaft.Machine spindle speed for 31.5~
14000rpm。
High Voltage Circuit Breaker Contacts burr removing method:Using magnetic rheology effect of the magnetorheological working fluid in externally-applied magnetic field；Magnetic
The colloidal suspensions that rheology working fluid is uniformly mixed by magnetic particle, base load liquid, stabilizer, abrasive grain.Adding magnetic outside
Under field action, magnetorheological working fluid mutually becomes Bingham class solid states, and rheological property can change rapidly, and shearing is bent
It takes stress and viscosity improves.Magnetic particle will form a series of chains or cluster-shaped knot under magnetic fields along magnetic induction line direction
Structure, and abrasive particle is then clamped between the magnetic particle of chaining, forms a kind of flexible grinding layer of similar solid state.Make to break
Road device contact is immersed in magnetorheological working fluid high speed rotation, so as to make magnetorheological working fluid and contact of breaker that opposite fortune occur
It is dynamic, realize that contact opens the removal process of valve seamed edge burr under the impact, ablation in working fluid.
Magnetorheological working fluid be based on oil base magnetorheological fluid, the abrasive material stirring of the certain content of mixing is formulated.
The base load liquid of magnetorheological fluid is low viscosity polyalphaolefin PAO6 and the mixed oil liquid of adipate ester, and magnetic particle uses carbonyl iron dust,
Grain size is 3~5 μm, and the two shared mass fraction in magnetorheological fluid is respectively 20% and 80%.Mill in magnetorheological working fluid
For material using emerald abrasive grain, grain size is 80 mesh.
It is as follows:
It first, will be by field generator for magnetic, magnetorheological processing liquid container with being fixedly mounted on upright drill processing every magnetic pedestal
On platform, ensure that field generator for magnetic is steady；
2nd, using 2A21 aluminium sheets make every magnetic pedestal, and every on magnetic pedestal process arc T-slot, iron yoke side bottom plate 9 with
Opposed centered on magnetorheological processing liquid container 14 to be mounted on every on magnetic pedestal, composition one end is fixed, a pair of one end adjustable angle
Magnetic pole, forms field circuit, and magnetic polar angle adjustable range is 120~180 °；
3rd, work piece holder is connected to machine tool chief axis；Wherein, Mohs cone bar 1 is customized according to machine tool chief axis hole taper, one end
For No. 4 cone bars of MT4 Mohs, it is connect with lathe mohs tapered bore；The other end is the connecting rod of diameter 24mm, connects flexible sheet shaft coupling
Device 3；Increase dress insulating bushing 2 between flexible sheet shaft coupling 3 and Mohs cone bar 1 and completely cut off electric current, 2 material of insulating bushing is poly- four
Vinyl fluoride；
4th, the magnetorheological working fluid 15 that abrasive concentration is 10% is prepared, adjustment machine tool chief axis makes contact of breaker 5 soak completely
Not wherein, and magnetorheological relatively close electromagnetic core 6 in liquid container 14 is processed, it is certain to be carried out compared with the slow-speed of revolution to start lathe
The stirring of duration uniformly disperses the abrasive grain in magnetorheological working fluid 15；
5th, adjustment machine spindle speed is 1000rpm, opens D.C. regulated power supply 13, and adjusts current strength as 4A, directly
It is 250V × 8A to flow 13 parameter of regulated power supply, and be passed through voltage or the electric current at 7 both ends of electromagnetic coil by control produces come control coil
Raw magnetic field intensity；Magnetorheological working fluid 15 is mutually deformed into Bingham class solid states under magnetic fields, and process time is
15min；
6th, after machining, D.C. regulated power supply 13 is first closed, after magnetorheological working fluid 15 into after liquid condition, then is closed
Machine tool chief axis is closed, contact of breaker 5 is finally taken out, is cleaned up using gasoline or petroleum ether；
7th, according to workpiece actual processing demand and deburring effect, magnetic polar angle, the magnetic current of field generator for magnetic be can adjust
Become the parameters such as abrasive concentration, machine spindle speed, the current strength of D.C. regulated power supply 13, the process time of working fluid 15, weight
Multiple above-mentioned steps are processed.
Below by taking certain High Voltage Circuit Breaker Contacts part as an example, processing request is:Outside fingertip seamed edge is without wedge angle, hair in contact
Thorn, is smooth to the touch；Seamed edge chamfering radius requires 0.2mm~0.4mm, and maximum is no more than 0.5mm.
Embodiment 2
As shown in fig. 6, the overall structure and embodiment of High Voltage Circuit Breaker Contacts burr remover are with embodiment 1, it is different
Part is that field generator for magnetic magnetic polar angle is adjusted to 150 °, and other technological parameters are constant.This example processing result is:Contact
Fingertip seamed edge chamfering radius is 236 μm, and root chamfering radius is 201 μm, and surface roughness 359.448nm meets contact zero
The removal requirement of part seamed edge and root burr.
Embodiment 3
As shown in fig. 7, the overall structure and embodiment of High Voltage Circuit Breaker Contacts burr remover are with embodiment 1, it is different
Part is that field generator for magnetic magnetic polar angle is adjusted to 120 °；Other technological parameters adjust as follows:Magnetorheological working fluid 15
Abrasive concentration is 20%, machine spindle speed 1000rpm, and the current strength of D.C. regulated power supply 13 is 3A, and process time is
20min.This example processing result is:Contact fingertip seamed edge chamfering radius is 313 μm, and root chamfering radius is 285 μm, and surface is thick
Rugosity is 289nm, meets the removal requirement of contact part seamed edge and root burr.
Embodiment 4
The overall structure and embodiment of High Voltage Circuit Breaker Contacts burr remover are the same as embodiment 3, other technological parameter tune
Section is as follows:The abrasive concentration of magnetorheological working fluid 15 is 10%, machine spindle speed 1400rpm, D.C. regulated power supply 13
Current strength is 3.5A, process time 15min.This example processing result is:Contact fingertip seamed edge chamfering radius is 361 μm,
Root chamfering radius is 353 μm, surface roughness 331nm, meets the removal requirement of contact part seamed edge and root burr.
Embodiment 5
The present embodiment is the processing instance after process parameter optimizing, and embodiment is adjusted such as with embodiment 3, technological parameter
Under:The abrasive concentration of magnetorheological working fluid 15 be 10%, machine spindle speed 1400rpm, D.C. regulated power supply 13 electric current
Intensity is 3.25A, process time 17.5min.This example processing result is:Contact fingertip seamed edge chamfering radius is 354 μm, root
Portion's chamfering radius is 342 μm, surface roughness 273nm.
Claims (2)
1. a kind of High Voltage Circuit Breaker Contacts burr remover, by field generator for magnetic, work piece holder, magnetorheological processing liquid container,
Driving device and D.C. regulated power supply composition, field generator for magnetic generate additional high-intensity magnetic field so that in magnetorheological processing liquid container
Magnetorheological working fluid be mutually deformed into the flexible grinding layers of Bingham class solid states, driving device is driven by work piece holder
Contact of breaker is immersed in magnetorheological working fluid high speed rotation, realizes that contact opens the deburring process of valve seamed edge, feature exists
In:The field generator for magnetic include electromagnetic core, electromagnetic coil, iron yoke side plate, iron yoke side bottom plate, iron yoke bottom plate, every magnetic
Pedestal, every backing plate, magnetorheological processing liquid container in magnetic, the electromagnetic core is cylinder, and one end is plane, and the other end is circular arc
Shape fracture is tightly attached to magnetorheological working fluid container outer wall face, and electromagnetic core is installed, and formed after powered up with electromagnetic coil cooperation
One group of magnetic pole, two groups of magnetic poles are symmetrically fixed between magnetorheological processing liquid container and iron yoke side plate, and two blocks of iron yoke side plates hang down respectively
Straight to be fixed on two pieces of iron yoke sides bottom plate one end, iron yoke side bottom plate is mounted on every on magnetic pedestal, and forms iron yoke with iron yoke bottom plate
Circuit；It is described every magnetic pedestal be cuboid, every being provided with arc T-slot on magnetic pedestal, slid over for the magnetic pole after installation,
And realize adjustable angle；
The work piece holder is made of Mohs cone bar, flexible sheet shaft coupling, insulating bushing, clamp body, contact of breaker, described
Mohs cone bar one end is connect for tapered rod with lathe mohs tapered bore, and the other end is mounted on for connecting rod on flexible sheet shaft coupling
End installs insulating bushing, flexible sheet shaft coupling and clamp body, contact of breaker additional between flexible sheet shaft coupling and Mohs cone bar
Connection is fixed；
The D.C. regulated power supply is located at the side of iron yoke bottom plate, and D.C. regulated power supply leads to respectively with two electromagnetic coil one end
Conducting wire connection is crossed, to control the magnetic field intensity for being passed through voltage or the electric current at electromagnetic coil both ends electromagnetic coil to be controlled to generate.
2. a kind of method that deburring is carried out using High Voltage Circuit Breaker Contacts burr remover described in claim 1, feature
It is to include the following steps:
Step 1. is by field generator for magnetic, magnetorheological processing liquid container with being fixedly mounted on upright drill processing platform every magnetic pedestal
On, ensure that field generator for magnetic is steady；
Step 2. is made of 2A21 aluminium sheets every magnetic pedestal, every processing arc T-slot on magnetic pedestal, by iron yoke side bottom plate with magnetic
Be symmetrically mounted on centered on rheology processing liquid container every on magnetic pedestal, and form one end fix, a pair of of magnetic of one end adjustable angle
Pole, forms field circuit, and magnetic polar angle adjustable range is 120~180 °；
Work piece holder is connected to machine tool chief axis by step 3.；Wherein, Mohs cone pole-footing is customized according to machine tool chief axis hole taper, and one end is
MT4 Mohs cone bar is connect with lathe mohs tapered bore, and the other end is that the connecting rod of diameter 24mm is connect with flexible sheet shaft coupling；Bullet
Property diaphragm coupling and Mohs cone bar between install additional insulating bushing isolation electric current, insulating bushing material be polytetrafluoroethylene (PTFE)；
Step 4. prepares magnetorheological working fluid, and adjustment machine tool chief axis makes contact of breaker be totally submerged wherein, and magnetorheological
Relatively close electromagnetic core in liquid container is processed, lathe is started to be stirred compared with the slow-speed of revolution, makes the mill in magnetorheological working fluid
Expect even particulate dispersion；
Step 5. adjusts machine spindle speed, opens D.C. regulated power supply, and adjust current strength, D.C. regulated power supply parameter is
250V × 8A, the magnetic field intensity for being passed through voltage or the electric current at electromagnetic coil both ends by control electromagnetic coil is controlled to generate；Magnetic
Rheology working fluid is mutually deformed into Bingham class solid states under magnetic fields, the time required to setting processing；
After step 6. machines, D.C. regulated power supply is closed, after magnetorheological working fluid into after liquid condition, turns off lathe master
Axis takes out contact part and is cleaned up with gasoline or petroleum ether；
Step 7. adjusts the magnetic polar angle, magnetorheological of field generator for magnetic according to workpiece actual processing demand and deburring effect
The abrasive concentration of working fluid, machine spindle speed, the current strength of D.C. regulated power supply, process time each parameter repeat above-mentioned
Step is processed.
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| CN111230602B (en) * | 2020-02-17 | 2021-07-09 | 辽宁科技大学 | Self-recognition multi-angle magnetic pole head chemical magnetic particle grinding processing device |
| CN112917374A (en) * | 2021-03-19 | 2021-06-08 | 湖南大学 | Online flexible trimming device of spherical micro grinding tool based on electromagnetic rheological effect |
| CN113579863B (en) * | 2021-08-27 | 2023-06-06 | 苏州中耀科技有限公司 | Deburring device for powder injection molding green body |
| CN114986376A (en) * | 2022-06-16 | 2022-09-02 | 山东理工大学 | Magnetic needle magnetic grinding machine |
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| CN105881185A (en) * | 2016-04-08 | 2016-08-24 | 广东工业大学 | Self-pressurized high-speed polishing method and device for inner surface of hole by means of abrasive particles and magnetic flow |
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| US4475315A (en) * | 1982-02-11 | 1984-10-09 | Centralen Mashinostroitelen Institute | Inductor for magnetic abrasive polishing |
| CN1433872A (en) * | 2003-03-07 | 2003-08-06 | 清华大学 | Orthogonal axis combined magnetic polishing tool |
| CN1724220A (en) * | 2005-07-21 | 2006-01-25 | 太原理工大学 | Liquid magnetic grinding and it preparation method |
| CN1872495A (en) * | 2006-06-30 | 2006-12-06 | 西安工业大学 | Magnetic rheologic flexible, fine grinding, polishing equipment and method |
| CN101579833A (en) * | 2009-06-05 | 2009-11-18 | 东华大学 | High efficiency controllable multiple wheel head magnetic rheology buffing device |
| CN202097608U (en) * | 2011-05-08 | 2012-01-04 | 浙江师范大学 | Uniform magnetorheological finishing device with controllable removal rate model |
| CN203526668U (en) * | 2013-10-15 | 2014-04-09 | 浙江伯特利树脂制品有限公司 | Semi-automatic deburring machine |
| CN103612195A (en) * | 2013-12-09 | 2014-03-05 | 湖南大学 | Magnetic abrasive finishing processing method and device of toroidal magnetic field excitation |
| CN104308671A (en) * | 2014-10-09 | 2015-01-28 | 东北大学 | Magnetorheological polishing device and method |
| CN204565862U (en) * | 2015-02-10 | 2015-08-19 | 上海海泰汽配有限公司 | A kind of burr remover |
| CN105881185A (en) * | 2016-04-08 | 2016-08-24 | 广东工业大学 | Self-pressurized high-speed polishing method and device for inner surface of hole by means of abrasive particles and magnetic flow |
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