CN116469672B - Magnetic powder orientation forming device used in production process of sintered NdFeB magnet - Google Patents
Magnetic powder orientation forming device used in production process of sintered NdFeB magnet Download PDFInfo
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- CN116469672B CN116469672B CN202310727715.6A CN202310727715A CN116469672B CN 116469672 B CN116469672 B CN 116469672B CN 202310727715 A CN202310727715 A CN 202310727715A CN 116469672 B CN116469672 B CN 116469672B
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- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 41
- 239000006247 magnetic powder Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 11
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 21
- 238000005452 bending Methods 0.000 claims description 18
- 238000000465 moulding Methods 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 4
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 15
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000001960 triggered effect Effects 0.000 abstract 2
- 239000000843 powder Substances 0.000 description 8
- UTKFUXQDBUMJSX-UHFFFAOYSA-N boron neodymium Chemical compound [B].[Nd] UTKFUXQDBUMJSX-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000009702 powder compression Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a magnetic powder orientation forming device used in a sintered NdFeB magnet production process, and particularly relates to the technical field of NdFeB magnet manufacturing. According to the magnetic powder orientation forming device used in the production process of the sintered neodymium-iron-boron magnet, the clamping limiting mechanism is triggered by the first touch teeth, so that the isosceles trapezoid plate, the bent plate and the fixed plate of the adjustable clamp are controlled to form the standard specification of the pressed sintered neodymium-iron-boron magnet, the processing and production are facilitated, the material taking and loosening mechanism is triggered by the second touch teeth after the extrusion forming process is finished, the isosceles trapezoid plate is enabled to spring upwards to push the pressed sintered neodymium-iron-boron magnet, and the taking out of the subsequent process is facilitated.
Description
Technical Field
The invention relates to the technical field of manufacturing of neodymium iron boron magnets, in particular to a magnetic powder orientation forming device used in the production process of sintered neodymium iron boron magnets.
Background
The forming of the neodymium-iron-boron refers to the process that an anisotropic magnet is subjected to magnetic field orientation in a magnetic field to finally form an oriented tissue structure, when the neodymium-iron-boron magnetic powder is subjected to forming orientation, powder is placed into a cavity of a die, and poles at two sides start to be electrified to generate the magnetic field, so that the neodymium-iron-boron magnetic powder is regularly arranged under the action of the magnetic field, and then the neodymium-iron-boron magnetic powder is extruded and formed, namely, a proper die is selected according to requirements, and the neodymium-iron-boron magnetic powder is oriented under a constant magnetic field and pressed and formed.
Chinese patent document CN114899003a discloses a neodymium iron boron magnetism powder orientation setting device that neodymium iron boron magnetism sintered body production was used, including base, first mounting bracket, hydraulic press and pressure head etc. there is first mounting bracket through bolted connection between the upside of two parts around the base, and first mounting bracket upper portion has the hydraulic press through bolted connection, has the pressure head through the coupling joint on the hydraulic press telescopic link. According to the invention, the electromagnet is used for carrying out two-time homodromous magnetic attraction orientation on the neodymium-boron magnet powder, so that the magnetic field orientation of the neodymium-boron magnet powder can be kept consistent, and the effect of enhancing the magnetism of the magnet formed by the neodymium-boron magnet powder is achieved. However, in the actual use process, the sliding contact frame is pushed by the first connecting frame, so that the handle moves backwards, the sliding seat automatically slides, the shaping mould achieves the effect of automatic shaking, and the shaped mould possibly shakes and disperses the compacted neodymium-boron magnet powder in the automatic shaking process.
Therefore, in view of the above problems, there is a need to provide a magnetic powder orientation molding device for use in the production process of sintered neodymium-boron-magnet which can avoid die shake and shake-out the compacted neodymium-boron-magnet powder.
Disclosure of Invention
The invention mainly aims to provide a magnetic powder orientation forming device used in the production process of sintered neodymium-iron-boron magnets, which can effectively solve the problem that a die possibly shakes and disperses compacted neodymium-boron magnet powder in the shaking process.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the magnetic powder orientation forming device comprises an electric push rod, wherein the front end of the electric push rod is provided with a guide rail, the guide rail consists of two guide plates, the cross sections of the guide plates are Z-shaped, the lower ends of the two guide plates are jointly provided with a fixed seat, and a die assembly is jointly arranged between the two guide plates;
the die assembly comprises a die shell, wherein first limiting blocks are arranged at the front end and the rear end of the die shell, second limiting blocks are arranged at the left end and the right end of the die shell, the cross section profiles of the first limiting blocks and the second limiting blocks are C-shaped, clamping limiting mechanisms are arranged at the upper parts of the left side wall and the right side wall of the inner surface of the die shell, material taking and loosening mechanisms are arranged at the lower parts of the left side wall and the right side wall of the inner surface of the die shell, and an adjustable clamp is arranged in the middle of the bottom wall of the inner surface of the die shell;
the fixing base comprises a base, two L-shaped brackets which are symmetrical to each other are arranged at the upper end of the base, a limit ring is arranged at one end, close to each other, of the horizontal part of the L-shaped brackets, an oil press is arranged on the inner wall of the limit ring, a pressure head is arranged at the output end of the oil press, two electromagnets which are distributed left and right and have opposite magnetic poles are further arranged at the upper end of the base, and the die assembly is located between the two electromagnets.
Preferably, an extension rod is arranged at the output end of the electric push rod, and the rear end of the extension rod is contacted with the first limiting block positioned at the front side.
Preferably, the positions of the upper surfaces of the horizontal parts of the two guide plates corresponding to the front sides of the two limiting blocks are respectively provided with a group of first touch teeth, the positions of the lower surfaces of the horizontal parts of the two guide plates corresponding to the rear sides of the two limiting blocks are respectively provided with a group of second touch teeth, the rear parts of the upper sides of the inner surfaces of the openings of the two limiting blocks are respectively provided with a first trigger gear matched with the first touch teeth, and the front parts of the lower sides of the inner surfaces of the openings of the two limiting blocks are respectively provided with a second trigger gear matched with the second touch teeth.
Preferably, the clamping limiting mechanism comprises a first driving pulley coaxial with the first trigger gear, first driven pulleys are arranged on the front sides of the left wall and the right wall of the inner surface of the die shell, the first driving pulley and the first driven pulleys are located at the same horizontal height, a first driving belt is wound between the first driving pulley and the first driven pulleys on the same side, a first propelling gear is arranged on one side, close to the center of the inner cavity of the die shell, of the outer surface of the first driving pulley, and a second propelling gear is arranged on one side, close to the center of the inner cavity of the die shell, of the outer surface of the first driven pulley.
Preferably, the material taking and loosening mechanism comprises a second driving belt pulley coaxial with the second trigger gear, second driven belt pulleys are arranged on the rear sides of the left wall and the right wall of the inner surface of the die shell, the second driving belt pulley and the second driven belt pulley are located at the same horizontal height, a second driving belt is wound between the second driving belt pulley and the second driven belt pulley on the same side, a third propelling gear is arranged on one side, close to the center of the inner cavity of the die shell, of the outer surface of the second driving belt pulley, and a fourth propelling gear is arranged on one side, close to the center of the inner cavity of the die shell, of the outer surface of the second driven belt pulley.
Preferably, the adjustable clamp comprises a plurality of thrust springs, wherein the thrust springs are fixedly connected with the bottom wall of the inner cavity of the die shell, isosceles trapezoid plates are arranged at the upper ends of the thrust springs together, fixing plates are arranged on the left side and the right side of the upper end of the isosceles trapezoid plates, a plurality of sliding rails are arranged on the front portion and the rear portion of the bottom wall of the die shell, curved plates are arranged at the upper ends of the sliding rails on the same side in the front side and the rear side together, the curved plates are composed of rectangular plates and inclined plates, the inclined plates are in sliding connection with the sliding rails, the rectangular plates are fixedly connected with the upper ends of the inclined plates, and the inclined angles of the inclined plates are identical to the inclined edges of the isosceles trapezoid plates.
Preferably, the left and right sides of the upper part of the front end of the rectangular plate of the bending plate at the front side are respectively provided with a second rack matched with the second pushing gear, the second racks are positioned at the upper side of the second pushing gear, the left and right sides of the upper part of the rear end of the rectangular plate of the bending plate at the rear side are respectively provided with a first rack matched with the first pushing gear, and the first racks are positioned at the lower side of the first pushing gear.
Preferably, the left and right sides of the lower part of the front end of the rectangular plate of the bending plate at the front side are respectively provided with a third rack matched with the third pushing gear, the third racks are positioned at the upper side of the third pushing gear, the left and right sides of the lower part of the rear end of the rectangular plate of the bending plate at the rear side are respectively provided with a fourth rack matched with the fourth pushing gear, and the fourth racks are positioned at the lower side of the fourth pushing gear.
Preferably, the mold assembly is a nonmetallic material.
Compared with the prior art, the invention has the following beneficial effects:
in the process of processing the sintered neodymium-iron-boron magnet, the forming device triggers the clamping limiting mechanism through the first touch tooth, so that the isosceles trapezoid plate, the bent plate and the fixed plate of the adjustable clamp are controlled to form the standard specification of the pressed sintered neodymium-iron-boron magnet, and the pressing processing of the device is facilitated; and trigger through the second touching tooth and get material relaxation mechanism after accomplishing extrusion's process, make isosceles trapezoid board bullet upwards push up the sintered neodymium iron boron magnet of compression moulding, be convenient for follow-up process take out.
In the use process of the forming device, a plurality of mold assemblies which are continuously recycled can be arranged on one set of guide rail, so that the production efficiency and the practicability are improved, and the requirement of automatic production is met.
Drawings
Fig. 1 is a schematic diagram of the whole structure of the present invention.
Fig. 2 is a schematic diagram of the whole structure of the present invention.
Fig. 3 is a schematic structural diagram of the fixing base of the present invention.
Fig. 4 is a schematic side view of a mold assembly according to the present invention.
Fig. 5 is an enlarged schematic view of the structure of fig. 2 a according to the present invention.
Fig. 6 is an enlarged schematic view of the structure of fig. 3B according to the present invention.
Fig. 7 is a schematic structural view of a mold assembly of the present invention.
Fig. 8 is a schematic diagram of the structure of the second inner part of the limiting block.
Fig. 9 is a schematic view of the structure of the upper side of the mold assembly of the present invention.
Fig. 10 is an enlarged schematic view of the structure of fig. 9C according to the present invention.
Fig. 11 is an enlarged schematic view of the structure of fig. 9D according to the present invention.
Fig. 12 is a cross-sectional view of an operational state of the adjustable clamp of the present invention.
Fig. 13 is a second cross-sectional view of the adjustable clamp of the present invention in an operational state.
In the figure: 2. an oil press; 3. a fixing seat; 4. a mold assembly; 11. a guide plate; 12. an electric push rod; 13. an extension rod; 14. a first touching tooth; 15. a second touching tooth; 31. a base; 32. an electromagnet; 33. an L-shaped bracket; 34. a limit ring; 35. a pressure head; 41. a mold housing; 42. a first limiting block; 43. a second limiting block; 431. a first trigger gear; 432. a second trigger gear; 44. an adjustable clamp; 441. isosceles trapezoid plates; 442. a fixing plate; 443. a curved plate; 444. a thrust spring; 445. a slide rail; 45. a clamping and limiting mechanism; 451. a first drive pulley; 452. a first driven pulley; 453. a first drive belt; 454. a first propulsion gear; 455. a second propulsion gear; 456. a first rack; 457. a second rack; 46. a take-off and relaxation mechanism; 461. a second drive pulley; 462. a second driven pulley; 463. a second drive belt; 464. a third propulsion gear; 465. a fourth propulsion gear; 466. a third rack; 467. and a fourth rack.
Description of the embodiments
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1-3, a magnetic powder orientation forming device used in the production process of sintered neodymium iron boron magnet comprises an electric push rod 12, wherein the front end of the electric push rod 12 is provided with a guide rail, the guide rail is composed of two guide plates 11, the cross section of each guide plate 11 is Z-shaped, the path of the guide rail can be designed into a complete production line according to the actual condition of a production workshop, therefore, the specific path is not limited, the lower ends of the two guide plates 11 are jointly provided with a fixed seat 3, the fixed seat 3 is used for positioning an oil press 2, simultaneously, an electromagnet 32 in the fixed seat 3 can generate a magnetic field to arrange neodymium iron boron magnetic powder in a regular manner, a die assembly 4 is jointly arranged between the two guide plates 11, in the actual use process, a plurality of continuous and circularly used die assemblies 4 can be arranged on one guide rail to improve the production efficiency and the practicability, the requirement of automatic production is met, the die assembly 4 can push the neodymium iron boron magnetic powder in the middle part of the fixing seat 3 to the middle part before entering the middle part of the fixing seat 3, after the device completes one-time magnetic powder compression molding, the die assembly 4 can automatically open the sintered neodymium iron boron magnet which is pushed out and extruded when leaving the middle part of the fixing seat 3, the die assembly is convenient to take out while avoiding vibration, the output end of the electric push rod 12 is provided with an extension rod 13, the electric push rod 12 is an electric driving device which converts the rotation motion of a motor into the linear reciprocating motion of the push rod, can be used as an executing machine in various simple or complex process flows so as to realize remote control, centralized control or automatic control, can control the lifting height according to the requirement, is the prior art, and the specific structure and the working principle of the die assembly are not repeated in the follow-up process, the rear end of the extension rod 13 contacts with a first limiting block 42 positioned on the front side, when the electric push rod 12 works, the die assembly 4 is pushed backwards through the extension rod 13, so that the die assembly 4 slides backwards on the surface of the guide rail, an automatic production assembly line is connected in front of the guide rail of the device, the die assembly 4 added with magnetic powder can be placed on the guide rail continuously, when the die assembly 4 is pushed into the position right below the oil press 2 by the extension rod 13 driven by the electric push rod 12, the electric push rod 12 stops once, at the moment, the oil press 2 is started to squeeze the magnetic powder in the die assembly 4, and after the oil press 2 works, the electric push rod 12 works again to push the die assembly 4 to move backwards away from the middle of the fixing seat 3 to enter a subsequent procedure.
Specifically, fixing base 3 includes base 31, the upper end of base 31 is equipped with two L shape brackets 33 of mutual symmetry about, the one end that the horizontal part of two L shape brackets 33 is close to each other is equipped with spacing collar 34 jointly, spacing collar 34 and L shape bracket 33 fixed connection, the inner wall of spacing collar 34 is equipped with oil press 2, spacing collar 34 and oil press 2 sliding connection, the output of oil press 2 is equipped with pressure head 35, oil press 2 during operation can be with the magnetic powder in the pressure head 35 lower pressure die assembly 4, oil press 2 is prior art, consequently, the details of its concrete structure and theory of operation are no longer repeated, the upper end of base 31 still is equipped with two electromagnets 32 that are distributed about and the magnetic pole is opposite, the relation of connection between electromagnet 32 and the base 31 is fixed connection, die assembly 4 is located between two electromagnets 32, electromagnet 32 can carry out the magnetic absorption orientation to neodymium iron boron magnetic powder.
In order that the die assembly 4 can push neodymium iron boron magnetic powder in the middle of the die assembly 4 to the middle before entering the middle of the fixing seat 3, and after the device completes one-time magnetic powder compression molding, the die assembly 4 can automatically open and push out the sintered neodymium iron boron magnet of extrusion molding when leaving the middle of the fixing seat 3, as shown in fig. 4-13, the die assembly 4 comprises a die shell 41, the front end and the rear end of the die shell 41 are respectively provided with a first limiting block 42, the connection relationship between the first limiting block 42 and the die shell 41 is fixedly connected, the left end and the right end of the die shell 41 are respectively provided with a second limiting block 43, the connection relationship between the second limiting block 43 and the die shell 41 is fixedly connected, the cross section profiles of the first limiting block 42 and the second limiting block 43 are respectively C-shaped, the upper parts of the left side wall and the right side wall of the inner surface of the die shell 41 are respectively provided with a clamping limiting mechanism 45, the clamping limiting mechanism 45 can push the neodymium iron boron magnet in the middle before the die assembly 4 passes through the middle of the fixing seat 3, the lower parts of the left side wall and the right side wall of the inner surface of the die shell 41 are respectively provided with a loosening mechanism 46, the loosening mechanism 46 can automatically open and the sintered neodymium iron boron magnet in the middle when leaving the middle of the fixing seat 3 of the die assembly 4, the die assembly is provided with the inner wall of the sintered neodymium iron boron magnet 44, and the sintered neodymium magnet 44 can be used for adjusting and shaping the sintered neodymium magnet.
Specifically, a set of first touching teeth 14 are disposed at positions of the upper surfaces of the horizontal portions of the two guide plates 11 corresponding to the front sides of the second limiting blocks 43, a set of second touching teeth 15 are disposed at positions of the lower surfaces of the horizontal portions of the two guide plates 11 corresponding to the rear sides of the second limiting blocks 43, first triggering gears 431 matched with the first touching teeth 14 are disposed at the rear portions of the upper sides of the inner surfaces of the openings of the two limiting blocks 43, the connection relationship between the first triggering gears 431 and the second limiting blocks 43 is rotational connection, second triggering gears 432 matched with the second touching teeth 15 are disposed at the front portions of the lower sides of the inner surfaces of the openings of the two limiting blocks 43, the connection relationship between the second triggering gears 432 and the second limiting blocks 43 is rotational connection, the first triggering gears 431 on two sides rotate when passing through the corresponding first touching teeth 14 before the die assembly 4 enters the middle of the fixing seat 3, and the second triggering gears 432 on two sides rotate when passing through the corresponding second touching teeth 15 in the process of the middle of the die assembly 4.
Further, the clamping and limiting mechanism 45 includes a first driving pulley 451 coaxial with the first trigger gear 431, a first driven pulley 452 is disposed on the front sides of the left and right walls of the inner surface of the mold housing 41, the first driven pulley 452 is rotationally connected to the mold housing 41, a first driving belt 453 is wound between the first driving pulley 451 and the first driven pulley 452 on the same side and on the same level, a first pushing gear 454 is disposed on the side, close to the center of the inner cavity of the mold housing 41, of the outer surface of the first driving pulley 451, a second pushing gear 455 is disposed on the side, close to the center of the inner cavity of the mold housing 41, of the outer surface of the first driven pulley 452, and the second pushing gear 455 is rotationally connected to the first driven pulley 452, so that when the first trigger gear 431 rotates, the first driving pulley 451 and the first driven pulley 452 are driven to rotate synchronously, and the first pushing gear 454 and the second pushing gear 455 are driven to rotate synchronously.
Similarly, the material taking-off and loosening mechanism 46 is opposite to the structure of the clamping and limiting mechanism 45, but the working principle is the same, the material taking-off and loosening mechanism 46 comprises a second driving pulley 461 coaxial with the second trigger gear 432, the rear sides of the left and right walls of the inner surface of the mold housing 41 are respectively provided with a second driven pulley 462, the second driven pulleys 462 are in rotational connection with the mold housing 41, the second driving pulley 461 and the second driven pulleys 462 are positioned at the same level, a second driving belt 463 is wound between the second driving pulley 461 and the second driven pulleys 462 on the same side, a third propelling gear 464 is arranged on the side, close to the center of the inner cavity of the mold housing 41, of the outer surface of the second driving pulley 461, a fourth propelling gear 465 is arranged on the side, close to the center of the inner cavity of the mold housing 41, of the outer surface of the second driven pulley 462, and the connection between the second driven pulleys 462 and the fourth propelling gear 465 is fixedly connected, so that when the second trigger gear 432 rotates, the second driving pulley 461 and the second driven pulleys 464 are driven to synchronously rotate, and the third propelling gears 464 and the fourth propelling gears 465 are synchronously rotated.
Further, the adjustable clamp 44 includes a plurality of thrust springs 444, the plurality of thrust springs 444 are fixedly connected with the bottom wall of the cavity of the mold shell 41, the upper ends of the plurality of thrust springs 444 are provided with isosceles trapezoid plates 441 together, the isosceles trapezoid plates 441 are fixedly connected with the plurality of thrust springs 444, the left and right sides of the upper ends of the isosceles trapezoid plates 441 are provided with fixed plates 442, the fixed plates 442 are fixedly connected with the isosceles trapezoid plates 441, the front and rear parts of the bottom wall of the mold shell 41 are provided with a plurality of sliding rails 445, the upper ends of the plurality of sliding rails 445 on the same side in the front and rear sides are provided with curved plates 443, the curved plates 443 are composed of rectangular plates and inclined plates, the inclined plates are in sliding connection with the sliding rails 445, the rectangular plates are fixedly connected with the upper ends of the inclined plates, and the inclined angles of the inclined plates are the same as that of the inclined plates 441, therefore when the inclined plates 443 on the front and rear sides approach to the middle, the inclined sides of the inclined plates 441 are simultaneously pressed down, the isosceles trapezoid plates 441 and the isosceles trapezoid plates 444 are pressed down, and the isosceles trapezoid plates 441 are pressed down, and the curved plates 443, the curved plates 441, the outline of the fixed plates and the curved plates are formed by the sintered standard magnet 442; in contrast, when the two zigzag plates 443 on the front and rear sides are separated from each other, the oblique sides of the oblique plates on the front and rear sides will simultaneously leave the oblique sides of the isosceles trapezoid plates 441, and at this time, the isosceles trapezoid plates 441 and the plurality of thrust springs 444 will automatically spring up to push up the compacted sintered neodymium-iron-boron magnet without being constrained by external force.
In order to achieve the above-mentioned action, the left and right sides of the upper portion of the rectangular plate front end of the zigzag plate 443 located at the front side are both provided with the second racks 457 which are matched with the second pushing gears 455, the second racks 457 are fixedly connected with the zigzag plates 443 on the same side, the second racks 457 are located at the upper side of the second pushing gears 455, the left and right sides of the upper portion of the rectangular plate rear end of the zigzag plate 443 located at the rear side are both provided with the first racks 456 which are matched with the first pushing gears 454, the first racks 456 are fixedly connected with the zigzag plates 443 on the same side, and the first racks 456 are located at the lower side of the first pushing gears 454, so that when the first pushing gears 454 and the second pushing gears 455 synchronously rotate, the second racks 457 and the zigzag plates 443 connected with the second racks 457, the first pushing gears 454 push the first racks 456 and the zigzag plates 443 connected with the first racks 456, the zigzag plates 443 on the front and rear sides approach the middle, the isosceles trapezoid plates 441 are simultaneously pressed, the oblique sides 441 on the front and rear sides are loose, and the oblique sides 444 are pressed down to the isosceles side of the isosceles trapezoid plates 441, and the pushing mechanism 46 is in a plurality of pushing state.
Likewise, the left and right sides of the lower part of the front end of the rectangular plate 443 of the front side are respectively provided with a third rack 466 which is matched with the third pushing gear 464, the third rack 466 is fixedly connected with the bending plate 443 on the same side, the third rack 466 is positioned on the upper side of the third pushing gear 464, the left and right sides of the lower part of the rear end of the rectangular plate 443 of the rear side are respectively provided with a fourth rack 467 which is matched with the fourth pushing gear 465, the connection relationship between the bending plate 443 and the fourth rack 467 is fixedly connected, the fourth rack 467 is positioned on the lower side of the fourth pushing gear 465, therefore, when the third pushing gear 464 and the fourth pushing gear are synchronously rotated, the fourth rack 467 and the bending plate 443 connected with the fourth rack 467 are pulled by the fourth pushing gear 465, the third pushing gear 464 can pull the third rack 466 and the bending plate 443 connected with the third rack 466, so that the two bending plates 443 are simultaneously separated from the front side and the rear side, the sloping sides of the inclined plates 441 on the front side and the rear side are simultaneously separated, the inclined sides of the inclined plates 441 are simultaneously, the inclined sides of the inclined plates of the front side and the inclined plates are not separated from the side surfaces of the die body, and the side faces of the die body are not required to be tightly pressed by the corresponding to the side faces of the fourth racks 45, and the side faces of the die body are not to be tightly pressed by the corresponding to the side faces of the fourth racks 45, and the side faces are not required to be tightly pressed by the corresponding to the side racks 45, and the side faces are tightly pressed by the corresponding to the side. In addition, the connection relationship between the first rack 456, the second rack 457, the third rack 466, the fourth rack 467 and the mold housing 41 is a sliding connection, so as to increase the stability of the clamping and limiting mechanism 45 and the material taking and loosening mechanism 46 during operation.
It should be noted that, the mold assembly 4 is made of a non-metal material, so as to avoid the magnetic powder from being adsorbed, thereby interfering with the normal production of the device.
Therefore, the specific implementation manner of this embodiment is as follows: when the electric push rod 12 works, the extension rod 13 is driven to push the die assembly 4 backwards, before the die assembly 4 enters the middle of the fixing seat 3, the first trigger gears 431 on the two sides can rotate when passing through the corresponding first touching teeth 14 and drive the first driving belt pulley 451 and the first driven belt pulley 452 to synchronously rotate, so that the first push gear 454 and the second push gear 455 synchronously rotate, the second push gear 455 can push the second rack 457 and the bending plate 443 connected with the second rack 457, the first push gear 454 can push the first rack 456 and the bending plate 443 connected with the first rack 456, the bending plates 443 on the front side and the rear side are simultaneously close to the middle, the bevel edges of the inclined plates on the front side and the rear side can simultaneously squeeze the bevel edges of the isosceles trapezoid plates 441 and the plurality of thrust springs 444, and the contour size formed by the isosceles trapezoid plates 441, the bending plates 443 and the fixing plates 442 is the standard specification for pressing sintered neodymium iron boron magnets; after the hydraulic press 2 finishes extruding the magnetic powder, the die assembly 4 is pushed out of the middle part of the fixing seat 3 under the influence of the extension rod 13, in the process, the second trigger gears 432 on two sides rotate when passing through the corresponding second touching teeth 15 and drive the second driving belt pulley 461 and the second driven belt pulley 462 to synchronously rotate, so that the third pushing gear 464 and the fourth pushing gear 465 synchronously rotate, the fourth pushing gear 465 pulls the fourth rack 467 and the bending plate 443 connected with the fourth rack 467, the third pushing gear 464 pulls the third rack 466 and the bending plate 443 connected with the third rack 466, the two bending plates 443 are separated from each other on the front side and the rear side at the same time, the oblique sides of the oblique plates on the front side and the rear side are separated from the oblique sides of the isosceles trapezoid plates 441, and the isosceles trapezoid plates 441 and the plurality of thrust springs 444 can automatically bounce upwards to push the compacted sintered neodymium-iron-boron magnets upwards because of being not constrained by external force, and the compacted sintered neodymium-iron-boron magnets are taken out for the subsequent procedures.
It should be noted that, the specific installation and control modes of the electric push rod 12, the hydraulic press 2, the electromagnet 32, and the like in the present invention are all conventional designs in the prior art, and the present invention is not described in detail.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a magnetic powder orientation forming device that uses in sintered neodymium iron boron magnetism body production process, includes electric putter (12), its characterized in that: the front end of the electric push rod (12) is provided with a guide rail, the guide rail is composed of two guide plates (11), the cross section of each guide plate (11) is Z-shaped, the lower ends of the two guide plates (11) are jointly provided with a fixing seat (3), and a die assembly (4) is jointly arranged between the two guide plates (11);
the die assembly (4) comprises a die shell (41), a first limiting block (42) is arranged at the front end and the rear end of the die shell (41), a second limiting block (43) is arranged at the left end and the right end of the die shell (41), the cross section profiles of the first limiting block (42) and the second limiting block (43) are C-shaped, clamping limiting mechanisms (45) are arranged at the upper parts of the left side wall and the right side wall of the inner surface of the die shell (41), a material taking and loosening mechanism (46) is arranged at the lower parts of the left side wall and the right side wall of the inner surface of the die shell (41), and an adjustable clamp (44) is arranged in the middle of the bottom wall of the inner surface of the die shell (41);
the fixing seat (3) comprises a base (31), two L-shaped brackets (33) which are symmetrical to each other are arranged at the upper end of the base (31), limit rings (34) are arranged at one ends, close to each other, of the horizontal parts of the two L-shaped brackets (33), an oil press (2) is arranged on the inner wall of each limit ring (34), a pressure head (35) is arranged at the output end of each oil press (2), two electromagnets (32) which are distributed left and right and have opposite magnetic poles are further arranged at the upper end of the base (31), and the die assembly (4) is positioned between the two electromagnets (32);
a group of first touch teeth (14) are arranged at positions, corresponding to the front sides of the limiting blocks II (43), of the upper surfaces of the horizontal parts of the guide plates (11), a group of second touch teeth (15) are arranged at positions, corresponding to the rear sides of the limiting blocks II (43), of the lower surfaces of the horizontal parts of the guide plates (11), first trigger gears (431) matched with the first touch teeth (14) are arranged at the rear parts of the upper sides of the inner surfaces of the openings of the limiting blocks II (43), and second trigger gears (432) matched with the second touch teeth (15) are arranged at the front parts of the lower sides of the inner surfaces of the openings of the limiting blocks II (43);
the clamping limiting mechanism (45) comprises a first driving belt pulley (451) which is coaxial with the first trigger gear (431), first driven belt pulleys (452) are arranged on the front sides of the left wall and the right wall of the inner surface of the die shell (41), the first driving belt pulley (451) and the first driven belt pulley (452) are positioned at the same horizontal height, a first transmission belt (453) is wound between the first driving belt pulley (451) and the first driven belt pulley (452) on the same side together, a first propelling gear (454) is arranged on one side, close to the center of the inner cavity of the die shell (41), of the outer surface of the first driving belt pulley (451), and a second propelling gear (455) is arranged on one side, close to the center of the inner cavity of the die shell (41), of the outer surface of the first driven belt pulley (452).
The adjustable clamp (44) comprises a plurality of thrust springs (444), the plurality of thrust springs (444) are fixedly connected with the bottom wall of the inner cavity of the die shell (41), isosceles trapezoid plates (441) are arranged at the upper ends of the plurality of thrust springs (444) together, fixing plates (442) are arranged on the left side and the right side of the upper end of the isosceles trapezoid plates (441), a plurality of sliding rails (445) are arranged at the front portion and the rear portion of the bottom wall of the die shell (41), bending plates (443) are arranged at the upper ends of the sliding rails (445) on the same side in the front side and the rear side together, the bending plates (443) are composed of rectangular plates and inclined plates, the inclined plates are connected with the sliding rails (445) in a sliding mode, the rectangular plates are fixedly connected with the upper ends of the inclined plates, and the inclined angles of the inclined plates are identical with the inclined edges of the isosceles trapezoid plates (441);
the left and right sides that are located the rectangular plate front end upper portion of tortuous board (443) of front side all be equipped with second rack (457) of second propulsion gear (455) looks adaptation, second rack (457) are located the upside of second propulsion gear (455), be located the rear side the left and right sides on the rectangular plate rear end upper portion of tortuous board (443) all be equipped with first rack (456) of first propulsion gear (454) looks adaptation, first rack (456) are located the downside of first propulsion gear (454).
2. A magnetic powder orientation molding device used in the production process of sintered neodymium-iron-boron magnets according to claim 1, wherein: the output end of the electric push rod (12) is provided with an extension rod (13), and the rear end of the extension rod (13) is contacted with the first limiting block (42) positioned on the front side.
3. A magnetic powder orientation molding device used in the production process of sintered neodymium-iron-boron magnets according to claim 2, characterized in that: the material taking and loosening mechanism (46) comprises a second driving pulley (461) which is coaxial with the second trigger gear (432), second driven pulleys (462) are arranged on the rear sides of the left wall and the right wall of the inner surface of the die shell (41), the second driving pulley (461) and the second driven pulleys (462) are located at the same horizontal height, a second driving belt (463) is wound between the second driving pulley (461) and the second driven pulleys (462) on the same side, a third propelling gear (464) is arranged on one side, close to the center of the inner cavity of the die shell (41), of the outer surface of the second driving pulley (461), and a fourth propelling gear (465) is arranged on one side, close to the center of the inner cavity of the die shell (41), of the outer surface of the second driven pulley (462).
4. A magnetic powder orientation molding device used in the production process of sintered neodymium-iron-boron magnets according to claim 3, characterized in that: the left and right sides that are located the rectangular plate front end lower part of tortuous board (443) of front side all be equipped with third rack (466) of third propulsion gear (464) looks adaptation, third rack (466) are located the upside of third propulsion gear (464), be located the rear side the left and right sides of rectangular plate rear end lower part of tortuous board (443) all be equipped with fourth rack (467) of fourth propulsion gear (465) looks adaptation, fourth rack (467) are located the downside of fourth propulsion gear (465).
5. The apparatus for aligning and forming magnetic powder used in the production process of sintered neodymium-iron-boron magnet according to claim 4, wherein: the die assembly (4) is made of nonmetal materials.
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| CN117153550B (en) * | 2023-09-13 | 2024-04-19 | 常州萨密得机电设备有限公司 | Processing equipment and method for permanent magnet synchronous motor |
| CN117637335B (en) * | 2024-01-26 | 2024-05-03 | 江苏普隆磁电有限公司 | Pressing die for neodymium-iron-boron magnet |
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| CN108597842A (en) * | 2018-04-11 | 2018-09-28 | 湖北豪鹏磁体有限公司 | One kind being orientated bonded permanent magnet moulding press for anisotropy neodymium iron boron quadrupole |
| WO2021254024A1 (en) * | 2020-06-20 | 2021-12-23 | 信丰县包钢新利稀土有限责任公司 | Equipment and method for recovering residual heat of neodymium-iron-boron waste roasting furnace |
| CN215746406U (en) * | 2021-09-18 | 2022-02-08 | 深圳市东方熊磁电制品有限公司 | Neodymium iron boron magnetism body compression molding device |
| CN114899003A (en) * | 2022-06-01 | 2022-08-12 | 赣州嘉通新材料有限公司 | Neodymium iron boron magnetic powder orientation setting device of neodymium iron boron magnetism sintered body production usefulness |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108597842A (en) * | 2018-04-11 | 2018-09-28 | 湖北豪鹏磁体有限公司 | One kind being orientated bonded permanent magnet moulding press for anisotropy neodymium iron boron quadrupole |
| WO2021254024A1 (en) * | 2020-06-20 | 2021-12-23 | 信丰县包钢新利稀土有限责任公司 | Equipment and method for recovering residual heat of neodymium-iron-boron waste roasting furnace |
| CN215746406U (en) * | 2021-09-18 | 2022-02-08 | 深圳市东方熊磁电制品有限公司 | Neodymium iron boron magnetism body compression molding device |
| CN114899003A (en) * | 2022-06-01 | 2022-08-12 | 赣州嘉通新材料有限公司 | Neodymium iron boron magnetic powder orientation setting device of neodymium iron boron magnetism sintered body production usefulness |
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