CN105127861A - Special-shaped grinding method and equipment for NdFeB rare earth permanent magnetic precision device - Google Patents
Special-shaped grinding method and equipment for NdFeB rare earth permanent magnetic precision device Download PDFInfo
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- CN105127861A CN105127861A CN201510629608.5A CN201510629608A CN105127861A CN 105127861 A CN105127861 A CN 105127861A CN 201510629608 A CN201510629608 A CN 201510629608A CN 105127861 A CN105127861 A CN 105127861A
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- grinding
- slideway
- cartridge clip
- earth permanent
- rare
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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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/009—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding profiled workpieces using a profiled grinding tool
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
- B24B41/062—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs
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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
- B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
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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 a special-shaped grinding method and equipment for an NdFeB rare earth permanent magnetic precision device. Special-shaped grooves are formed in grinding wheels, and the grinding wheels are electroplated with diamonds, and are used for grinding various planes or the grinding of complex molded faces is implemented through grinding wheel modification. The equipment comprises a grinding machine, a mould device, a clip ejector pin type conveying mechanism, a water-cooling device and an electrical control device, wherein the mould device is fixed on a base plate of a bed body and positioned below the grinding wheels; the clip ejector pin type conveying mechanism is fixed on the base plate, a workpiece slideway is arranged on a clip, one end of the workpiece slideway is connected with a bridge plate, and one end of the bridge plate is connected with a mould of the mould device. According to the invention, the workpiece slideway with different shapes is formed in the clip according to the shape and size of a workpiece. The thickness of the vertical face of a device processed by the special-shaped grinding method is greater than or equal to 0.5 mm; the problem that an NdFeB rare earth permanent magnetic precision device with tiny size cannot be subjected to industrialized special-shaped grinding to achieve complex shapes is solved, and the grinding of 4 faces of a permanent magnetic device can be completed through one-time operation.
Description
Technical field
The present invention relates to rare earth permanent magnet device fabrication field, particularly relate to a kind of equipment for grinding and method for grinding of Nd-Fe-B rare-earth permanent magnet accurate device.
Background technology
Nd-Fe-B rare earth permanent magnetic material, is more and more applied with the magnetic property that it is excellent, is widely used in the Magnetic resonance imaging of medical treatment, computer hard disc driver, the field such as sound equipment, mobile phone; Along with energy-conservation and requirement that is low-carbon economy, Nd-Fe-B rare earth permanent magnetic material starts again at auto parts and components, household electrical appliance, energy-conservation and control motor, hybrid vehicle, and field of wind power generation is applied.
Along with the appearance of the consumer electronics such as high-end handsets, intelligent watch, the special-shaped Nd-Fe-B rare-earth permanent magnet accurate device of the four sides grinding that demand is a large amount of; The particularly device of grinding cross-shaped, existing equipment cannot carry out large batch of production, and manual method can only be adopted to complete, and needs advanced, that automaticity is high equipment for grinding and method for grinding for this reason.
Because neodymium iron boron rare earth permanent magnet device is not only hard but also crisp, common grinding machine processing neodymium iron boron rare earth permanent magnet device is very difficult, and efficiency is extremely low, and cost is high, is not suitable for producing in enormous quantities.
Summary of the invention
The invention provides a kind of equipment for grinding and method for grinding of Nd-Fe-B rare-earth permanent magnet accurate device, be achieved through the following technical solutions:
A kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity equipment for grinding, described special-shaped equipment for grinding comprises grinding machine, mold device and cartridge clip ejector pin mechanism; Described grinding machine comprises rotary main shaft device, mobile platform and lathe bed; Wherein mobile platform is arranged on lathe bed, and rotary main shaft device is fixing on a mobile platform, and mobile platform moves along the vertical and horizontal directions, and rotary main shaft front end is provided with emery wheel; Described mold device is arranged on lathe bed, is positioned at below emery wheel; Described cartridge clip ejector pin mechanism is connected on base plate, and one end is connected with mold device.
Described emery wheel is plated diamond grinding wheel, has special-shaped slot grinding.
Described lathe bed is provided with base plate, and mold device is arranged on base plate; Described mold device comprises mold seat, mould, mold fixed plate, mould portable plate and mould baffle plate; Mold seat is connected with base plate, and mould, on mold seat, is fastened on mold seat by mold fixed plate and mould portable plate.
Described cartridge clip ejector pin mechanism comprises cartridge clip, thimble push rod and thimble cylinder; Described cartridge clip is connected on base plate, cartridge clip is provided with the slideway that workpiece slides, slideway is vertically arranged, slideway one end is connected with thimble push rod, thimble push rod is connected on thimble cylinder rod, thimble cylinder is fixed on base plate, and the workpiece in slideway is released cartridge clip slideway through thimble push rod and is transported on mold mould through bridge plate.
The slideway that workpiece on described cartridge clip slides is horizontally disposed with, and one end of slideway is connected with vibrating feeder (conveyer).
Described cartridge clip thimble conveying mechanism comprises cartridge clip, thimble push rod, workpiece runway and motor transmission mechanism; Described cartridge clip is connected on base plate, cartridge clip there is the slideway that workpiece slides, slideway is vertically arranged, one end of slideway is connected with thimble push rod, thimble push rod is connected on the slide plate of motor driven ball screws, slide plate moves on line slideway, and thimble push rod is on workpiece runway, and the workpiece in slideway is released cartridge clip slideway through thimble push rod and is transported on mold mould through bridge plate.
A kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity method for grinding, is characterized in that: emery wheel has special-shaped slot, electroplated diamond, repaiies for the various plane of grinding or by emery wheel the grinding that type carries out complicated forming surface; Thickness >=the 0.5mm of its grinding work piece.
Described emery wheel is more than 1; Mounting means be up and down or left and right or front and back arrange; Disposable through type completes 1 of accurate grinding processing permanent magnet devices with above.
The content of rare earth of described Nd-Fe-B rare-earth permanent magnet accurate device is in 29-32wt% scope, and B content is in 0.9-1.1wt% scope, and Pr, Nd, Fe must contain element.
Beneficial effect of the present invention: equipment for grinding and method for grinding that a kind of Nd-Fe-B rare-earth permanent magnet accurate device is provided, Automation of Manufacturing Process degree is high, strong adaptability, cost is low, be particularly suitable for 4 faces of producing cross-shaped high-precision grinding Nd-Fe-B rare-earth permanent magnet accurate device in enormous quantities, productive temp≤5 second/part.The equipment for grinding of a kind of Nd-Fe-B rare-earth permanent magnet accurate device provided by the invention be especially applicable to little micro-dimension rare earth permanent magnet accurate device high accuracy, extensive, low cost grind requirement.
Accompanying drawing explanation
Fig. 1 is cartridge clip cylinder top pin type equipment for grinding schematic diagram of the present invention.
Fig. 2 is that cartridge clip motor of the present invention drives thimble-type equipment for grinding schematic diagram.
Fig. 3 is mold device schematic diagram of the present invention.
Fig. 4 is cartridge clip thimble push rod device schematic diagram of the present invention.
Fig. 5 is the product schematic diagram of grinding of the present invention.
In figure: 1, grinding machine; 2, mold device; 3, bridge plate; 4, cartridge clip thimble conveying mechanism; 5, water cooling plant; 6, electric control gear; 7, lathe bed; 8, base plate; 9, emery wheel; 10, workpiece; 11, rotary main shaft; 12, mobile platform; 13,1# motor; 14, mold seat; 15, mould; 16, mold fixed plate; 17, mould portable plate; 18, cartridge clip; 19, thimble push rod; 20, cylinder; 21, workpiece runway; 22, tank; 23, water tank; 24, water nozzle; 25,2# motor; 26, ball-screw; 27, slide plate; 28, line slideway; 29, mould baffle plate.
Detailed description of the invention
The present invention is further illustrated below by accompanying drawing:
As shown in Figure 1, the present invention is a kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity equipment for grinding.Equipment comprises grinding machine 1, mold device 2, bridge plate 3, cartridge clip thimble conveying mechanism 4, water cooling plant 5 and electric control gear 6; Grinding machine 1 comprises rotary main shaft device 11, mobile platform 12 and lathe bed 7; Wherein mobile platform 12 is arranged on lathe bed 7, and rotary main shaft device 11 is fixed on mobile platform 12, and mobile platform 12 moves along the vertical and horizontal directions, and rotary main shaft front end is provided with emery wheel 9; Described lathe bed 7 is provided with base plate 8, and mold device 2 is arranged on base plate 8, be positioned at have special-shaped slot grinding emery wheel 9 below.
Described cartridge clip ejector pin mechanism 4 comprises cartridge clip 18, thimble push rod 19 and thimble cylinder 20; Described cartridge clip 18 is connected on base plate 8, cartridge clip 18 is provided with the slideway that workpiece slides, slideway is vertically arranged, slideway one end is connected with thimble push rod 19, thimble push rod 19 is connected on thimble cylinder rod, thimble cylinder 20 is fixed on base plate 8, and the workpiece 10 in slideway is released in the mould 15 that cartridge clip 18 slideway to be transported to through bridge plate 3 on mold seat 14 through thimble push rod 19.
As shown in Figure 2, the present invention is a kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity equipment for grinding.Equipment comprises grinding machine 1, mold device 2, bridge plate 3, cartridge clip thimble-type conveying mechanism 4, water cooling plant 5 and electric control gear 6; Grinding machine 1 comprises rotary main shaft device 11, mobile platform 12 and lathe bed 7; Wherein mobile platform 12 is arranged on lathe bed 7, and rotary main shaft device 11 is fixed on mobile platform 12, and mobile platform 12 moves along the vertical and horizontal directions, and rotary main shaft front end is provided with emery wheel 9; Described lathe bed 7 is provided with base plate 8, and mold device 2 is arranged on base plate 8, be positioned at have special-shaped slot grinding emery wheel 9 below.Workpiece conveying bridge plate 3 is fixed on base plate 8, and its one end connects with the mould 15 of mold device 2, and one end connects with cartridge clip 18 workpiece runway 21.Described cartridge clip thimble conveying mechanism 4 comprises cartridge clip 18, thimble push rod 19, workpiece runway 21 and motor transmission mechanism; Described cartridge clip 18 is connected on base plate, the slideway that cartridge clip 18 has workpiece to slide, and slideway is vertically arranged, one end of slideway is connected with thimble push rod 19, thimble push rod 19 is connected with slide plate 27, and slide plate 27 is moved on line slideway by 2# motor driven ball screws 26, and 2# motor is fixed on base plate 8; Thimble push rod 19 is on workpiece runway 21, and the workpiece 10 in slideway is released in the mould 15 that workpiece slideway on cartridge clip 18 to be transported to through bridge plate 3 on mold seat 14 through thimble push rod 19.
As shown in Figure 1, 2, the emery wheel 9 having special-shaped slot grinding is installed in rotary main shaft 11 front end, and rear end is provided with belt pulley and is connected with 1# motor 13 by belt; Mobile platform 12 comprises manually or the nut screw line slide rail of motorized motions, and mobile platform 12 is manual or electronic to be moved at vertical plane or horizontal plane, regulates the relative position of emery wheel 9 and grinding tool 15.
As shown in Figure 3, mold device 2 comprises mold seat 14, mould 15, mold fixed plate 16, mould portable plate 17 and mould baffle plate 29; Wherein mold seat 14 is fixed on base plate 8 by slide rail bolt; Mould 15 is arranged on mold seat 14, spacing by mold fixed plate 16, by mould portable plate 17 its position fastening.
As shown in Figure 4, cartridge clip thimble conveying mechanism 4 is connected on base plate 8, and wherein workpiece runway 21 is below cartridge clip 18, and cartridge clip 18 has T-shaped workpiece slideway, throws in workpiece 10; Thimble push rod 19 is on workpiece runway 21, and one end connects the workpiece slideway on cartridge clip 18, and cylinder 21 promotes thimble push rod 19, is released by the workpiece 10 in cartridge clip 18 from cartridge clip 18; According to the workpiece slideway size on workpiece 10 geomery thickness adjustment cartridge clip 18.
As shown in Figure 1, water cooling plant 5 comprises tank 22, water nozzle 24, water tank 23, water pump and water pipe; Electric control gear 6 panel there are speed governing knob and the speed display of motor, water pump.
Emery wheel 9 has special-shaped slot, electroplated diamond, repaiies for the various plane of grinding or by emery wheel the grinding that type carries out complicated forming surface; Thickness >=the 0.5mm of its grinding work piece.
Abrasive grinding wheel 9 is more than 1; Mounting means be up and down or left and right or front and back arrange; Disposable through type completes 1 of accurate grinding processing permanent magnet devices with above.
Remarkable result of the present invention is further illustrated below by embodiment.
Embodiment 1
Alloy 600Kg melting is chosen by table one composition, in the molten state cooling on alloy casting to the chill roll of the water-cooled rotation of band is formed alloy sheet, then the involutory gold plaque of vacuum hydrogen crushing furnace is used to carry out coarse crushing, the broken laggard row airflow milling of hydrogen, airflow milling atmosphere oxygen content is lower than 50ppm, cyclone collection to powder and fine powder collector collect fine powder deliver to nitrogen protection magnetic field orientating press-molding after 60 minutes with two-dimentional batch mixer batch mixing under nitrogen protection, oxygen content 150ppm in guard box, alignment magnetic field 1.8T, mould cavity temperature 3 DEG C, magnetic patch size 62 × 52 × 42mm, differently-oriented directivity is 42 dimensional directions, encapsulate in guard box after shaping, then take out and carry out isostatic pressed, hydrostatic pressure 200MPa, send into vacuum sintering furnace sintering afterwards, sintering temperature 1060 DEG C, argon cycles takes out after being cooled to 80 DEG C.Carry out multi-wire saw processing, grinding becomes product A, B, C, D tetra-kinds of specifications respectively.
The equipment for grinding of neodymium iron boron rare earth permanent magnet device of the present invention is a kind of Semi-automatic device, and as shown in Figure 1, Figure 2, Figure 3, Figure 4, equipment comprises grinding machine 1, mold device 2, bridge plate 3, cartridge clip thimble-type conveying mechanism 4, water cooling plant 5 and electric control gear 6.Its method for grinding is by the cartridge clip 18 manually workpiece 10 being put into equipment by above-mentioned specification product, starting device, the workpiece slideway of workpiece 10 in cartridge clip 18 on the free end release cartridge clip 18 of thimble push rod 19, workpiece runway 21 on bridge plate 3 enters in the mould 15 on mold seat 14, automatically carries out the efficient special-shaped grinding of fine size more than 1 through emery wheel 9 place having special-shaped slot grinding; According to the workpiece slideway size on workpiece 10 geomery thickness adjustment cartridge clip 18; Workpiece 10 in continuous filling cartridge clip 18, ensures that described product grinds processing rhythm control at 8 ~ 15 seconds/part.Workpiece slideway on cartridge clip 18 is connected with vibrating feeder (conveyer), for realizing the mode of production of auto feed.
Abnormity grinding machine 1 comprises rotary main shaft device 11, mobile platform 12 and lathe bed 7, wherein mobile platform 12 is arranged on lathe bed 7, rotary main shaft device 11 is fixed on mobile platform 12, mobile platform 12 moves along the vertical and horizontal directions, rotary main shaft front end is provided with emery wheel 9, manually or motorized adjustment mobile platform 12, realize emery wheel 9 and regulate with workpiece 10 relative position.
Elevational thickness >=the 0.5mm of its workpiece of vertical special mill method for producing; The sleeping face height >=0.5mm of horizontal its workpiece of abnormity mill method for producing.
Abrasive grinding wheel is two or more; Mounting means be up and down or left and right or front and back arrange; Described special-shaped method for grinding grinds 4 faces of disposable grinding permanent magnetism accurate device.
In emery wheel 9 direction of rotation plane, emery wheel 7 both sides are provided with water-cooled liquid water nozzle 29, water nozzle 29 for cooling emery wheel, and another water nozzle 24 is for rinsing the grinding greasy filth in mould 15.
Emery wheel has special-shaped slot, electroplated diamond, repaiies for the various plane of grinding or by emery wheel the grinding that type carries out complicated forming surface.
Through grinding the product of processing through post processings such as sandblasting, plating, electrophoresis, spraying, vacuum coatings, reach the dimensional accuracy of workpiece, corrosion resistance requirement.
The composition of table one, alloy:
| Sequence number | Composition |
| 1 | (Pr 0.2Nd 0.8) 25Dy 5Tb 1Fe 65Co 2.4Cu 0.3B 0.9Al 0.2Ga 0.1Zr 0.1 |
Product result after table two, processing:
。
Claims (9)
1. a Nd-Fe-B rare-earth permanent magnet accurate device abnormity equipment for grinding, is characterized in that: described special-shaped equipment for grinding comprises grinding machine, mold device and cartridge clip ejector pin mechanism; Described grinding machine comprises rotary main shaft device, mobile platform, lathe bed and emery wheel, and wherein mobile platform is arranged on lathe bed, and described lathe bed is provided with base plate; Rotary main shaft device is fixing on a mobile platform, and mobile platform moves along the vertical and horizontal directions, and rotary main shaft front end is provided with emery wheel; Described mold device is arranged on lathe bed, is positioned at below emery wheel; Described cartridge clip ejector pin mechanism is connected on base plate, and one end is connected with mold device.
2. a kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity equipment for grinding according to claim 1, is characterized in that: described emery wheel is plated diamond grinding wheel, has special-shaped slot grinding.
3. a kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity equipment for grinding according to claim 1, is characterized in that: described mold device is arranged on the base plate of lathe bed; Described mold device comprises mold seat, mould, mold fixed plate, mould portable plate and mould baffle plate; Mold seat is connected with base plate, and mould, on mold seat, is fastened on mold seat by mold fixed plate and mould portable plate.
4. a kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity equipment for grinding according to claim 1, is characterized in that: described cartridge clip ejector pin mechanism comprises cartridge clip, thimble push rod and thimble cylinder; Described cartridge clip is connected on base plate, cartridge clip is provided with slideway, be used for workpiece is slided in slideway, slideway is vertically arranged, slideway one end is connected with thimble push rod, thimble push rod is connected with thimble cylinder rod, and thimble cylinder is fixed on base plate, and the workpiece in slideway is released cartridge clip slideway through thimble push rod and is transported in the mould on mold seat.
5. a kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity equipment for grinding according to claim 1, is characterized in that: described cartridge clip ejector pin mechanism comprises cartridge clip, thimble push rod and thimble cylinder; Described cartridge clip is connected on base plate, and cartridge clip is provided with slideway, is used for workpiece is slided in slideway, and slideway is horizontally disposed with, and one end of slideway is connected with vibrating feeder (conveyer).
6. a kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity equipment for grinding according to claim 1, is characterized in that: described cartridge clip thimble conveying mechanism comprises cartridge clip, thimble push rod, workpiece runway and motor transmission mechanism; Described cartridge clip is connected on base plate, cartridge clip is provided with slideway, be used for workpiece is slided in slideway, slideway is vertically arranged, one end of slideway is connected with thimble push rod, thimble push rod is driven by motor transmission mechanism, and the workpiece in slideway is released in the mould that cartridge clip slideway is transported on mold seat through bridge plate through thimble push rod.
7. a Nd-Fe-B rare-earth permanent magnet accurate device abnormity method for grinding, use the Nd-Fe-B rare-earth permanent magnet accurate device abnormity equipment for grinding as described in any one of claim 1-6, repair for the various plane of grinding or by emery wheel the grinding that type carries out complicated forming surface, it is characterized in that: the thickness >=0.5mm of described special-shaped method for grinding institute grinding work piece.
8. a kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity method for grinding according to claim 7, is characterized in that: described emery wheel is more than 1; Mounting means be up and down or left and right or front and back arrange; Described special-shaped method for grinding once completes the machined surface of more than 1 of accurate grinding processing permanent magnet devices.
9. a kind of Nd-Fe-B rare-earth permanent magnet accurate device abnormity method for grinding according to claim 7, it is characterized in that: the content of rare earth of described Nd-Fe-B rare-earth permanent magnet accurate device is in 29-32wt% scope, B content is in 0.9-1.1wt% scope, and Pr, Nd, Fe must contain element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510629608.5A CN105127861A (en) | 2015-09-29 | 2015-09-29 | Special-shaped grinding method and equipment for NdFeB rare earth permanent magnetic precision device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510629608.5A CN105127861A (en) | 2015-09-29 | 2015-09-29 | Special-shaped grinding method and equipment for NdFeB rare earth permanent magnetic precision device |
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| CN105127861A true CN105127861A (en) | 2015-12-09 |
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| CN201510629608.5A Pending CN105127861A (en) | 2015-09-29 | 2015-09-29 | Special-shaped grinding method and equipment for NdFeB rare earth permanent magnetic precision device |
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Application publication date: 20151209 |
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