CN109434100B - Combined die for forming special-shaped square block blank by using magnetic field for neodymium iron boron - Google Patents
Combined die for forming special-shaped square block blank by using magnetic field for neodymium iron boron Download PDFInfo
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- CN109434100B CN109434100B CN201811612145.1A CN201811612145A CN109434100B CN 109434100 B CN109434100 B CN 109434100B CN 201811612145 A CN201811612145 A CN 201811612145A CN 109434100 B CN109434100 B CN 109434100B
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- Prior art keywords
- magnetic conduction
- conduction plate
- magnetic
- block
- plate assembly
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- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 16
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 17
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000003754 machining Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The utility model provides a combined die for forming special-shaped square block blanks by using a magnetic field of neodymium iron boron, which comprises a magnetic conduction plate assembly, a non-magnetic plate assembly, chamfer blocks and fasteners, wherein the magnetic conduction plate assembly is arranged on the die; the magnetic conduction plate assembly is vertically connected with the nonmagnetic plate assembly through a fastener; the chamfer block is positioned at the joint of the magnetic conduction plate assembly and the non-magnetic plate assembly; the chamfering clamp is used for enabling the chamfering processing of the chamfering block to be simple and feasible, pressing a pressed blank with the chamfering can be achieved, and meanwhile, the matching precision of the demoulding inclination of the chamfering block chamfering, the demoulding inclination of the magnetic conduction plate and the non-magnetic plate is guaranteed. The utility model can press out the pressed compact with chamfer, reduces stress concentration and reduces the unfilled corner rate of the product. The die has the advantages of simple structure, easy processing, flexible selection of part materials, flexible size adjustment of the die cavity, high repeated utilization rate of parts and material saving.
Description
Technical Field
The utility model belongs to the technical field of magnetic material compression molding dies, and particularly relates to a combined die for molding special-shaped square block blanks by using a magnetic field for neodymium iron boron.
Background
Neodymium magnets, also called neodymium-iron-boron magnets, are tetragonal crystals formed from neodymium, iron, and boron, and can be produced by spin-spray smelting. This magnet is the most magnetic permanent magnet today, and is also the most commonly used rare earth magnet. Neodymium-iron-boron magnets are widely used in electronic products such as hard disks, cell phones, headphones, battery powered tools, and the like.
The utility model provides a mould of magnetic field shaping square lump material blank for sintered neodymium iron boron that publication number is CN203649402U, including preceding, back magnetic conduction board and left and right curb plate, be equipped with the fluting on the medial surface at preceding, back magnetic conduction board both ends respectively, the both ends of left and right curb plate correspond respectively and insert in the fluting on preceding, back magnetic conduction board both ends medial surface and enclose into the die cavity, the inboard of preceding, back magnetic conduction board and left and right curb plate has preceding, back, left and right wearing layer respectively, preceding, back, left and right wearing layer forms annular structure through mutually concatenation or integrated into one piece and surrounds around the die cavity, wherein the length of preceding, back wearing layer equals the length of die cavity, the length of left and right wearing layer is greater than the width of die cavity. The utility model has reasonable structure, adopts a splicing or integral forming mode to change the shape of the wear-resistant layer, prolongs the wear-resistant layer on the inner side of the side plate, leads the length of the wear-resistant layer to exceed the width of the die cavity, improves the magnetic field defect at the corner of the square blank during forming, and avoids the defect formed at the corner of the product.
However, when the working surface of the die cavity is worn, the magnetic conduction plate can be used for grinding the worn part and reprocessing again, but is scrapped after being ground to a certain degree due to the thickness limitation; the working surface of the non-magnetic plate can only be replaced after being worn, and the size of a die cavity can be influenced if worn out. When a material having high strength and high hardness is used, the material cost increases due to an increase in processing difficulty. In addition, the edges of the pressed blanks pressed by the die are sharp corners, so that stress concentration is easy to occur, and unfilled corners are caused; the processing material of the lining part is wasted greatly, and a whole piece of material is needed to be used for drawing out the core. The processing equipment requirement is high, the slow wire cutting mirror surface processing is required to be completed in one step, the processing cost is high, the demoulding inclination is required to be cut at the same time, and the technical requirement is high. If a general wire cut is used, the sanding of the inside of the liner is difficult to handle.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a combined die for forming a special-shaped square block blank by using a magnetic field for neodymium iron boron.
The utility model is realized by the following technical scheme.
A combined die for forming special-shaped square block blanks by using a magnetic field for NdFeB comprises a magnetic conduction plate assembly, a non-magnetic plate assembly, chamfer blocks and fasteners; the magnetic conduction plate assembly is vertically connected with the nonmagnetic plate assembly through a fastener; the chamfer block is positioned at the joint of the magnetic conduction plate assembly and the non-magnetic plate assembly; the magnetic conduction plate assembly comprises a magnetic conduction plate bracket, a magnetic conduction plate A, a stop block and a pressing block; the pressing blocks are positioned on two sides of the magnetic conduction plate bracket; the stop block and the magnetic conduction plate A are positioned on the front surface of the magnetic conduction plate bracket; the magnetic conduction plate A is arranged in the middle of the magnetic conduction plate bracket; the nonmagnetic plate assembly comprises a nonmagnetic plate bracket and a nonmagnetic plate A; the non-magnetic plate A is arranged in the middle of the non-magnetic plate bracket.
As a further technical improvement, the stop block is provided with a counter bore and a boss A; the front surface of the magnetic conduction plate bracket is provided with an internal thread A and a groove A; the stop block is embedded in the groove A on the front surface of the magnetic conduction plate bracket through the boss A, and the stop block is connected with the magnetic conduction plate bracket through the fastener.
As a further technical improvement, the magnetic conduction plate A is provided with a T-shaped groove and a jackscrew groove; the back of the magnetic conduction plate bracket is provided with a counter bore and jackscrew internal threads; the magnetic conduction plate A is arranged on the magnetic conduction plate bracket through a fastener and a jackscrew.
As a further technical improvement, the pressing block is provided with a counter bore and a boss B; an internal thread B and a groove B are arranged on the side surface of the magnetic conduction plate bracket; the pressing block is embedded in the groove B on the side surface of the magnetic conduction plate bracket through the boss B, and the stop block is connected with the magnetic conduction plate bracket through the fastener.
As a further technical improvement, the back of the magnetic conduction plate bracket is provided with a straight slot countersunk hole A; the width of the straight slot countersunk head hole A is larger than the width of a nut on the bolt.
As a further technical improvement, a boss C is arranged on the nonmagnetic plate A; the nonmagnetic plate bracket is provided with a groove C; the nonmagnetic plate A is connected with the groove C of the nonmagnetic plate bracket through the boss C.
As a further technical improvement, the magnetic conduction plate assembly is provided with two groups which are symmetrically arranged; the non-magnetic plate assembly is provided with two groups, is symmetrically arranged in position and is positioned between the two groups of magnetic plate assemblies.
As a further technical improvement, the above-mentioned chamfer blocks are provided with four.
As a further technical improvement, the fastener is provided as an inner hexagon bolt.
As a further technical improvement, the chamfering block is machined by a chamfering clamp; the chamfering clamp is provided with a processing groove and a fastening threaded hole; the inclined plane of the processing groove and the processing surface are 45 degrees. The utility model has the beneficial effects that:
the chamfering clamp is used for enabling the chamfering processing of the chamfering block to be simple and feasible, pressing a pressed blank with the chamfering can be achieved, and meanwhile, the matching precision of the demoulding inclination of the chamfering block chamfering, the demoulding inclination of the magnetic conduction plate and the non-magnetic plate is guaranteed. The die can press out a pressed blank with a chamfer, so that stress concentration is reduced, and the unfilled corner rate of a product is reduced. The die has the advantages of simple structure, easy processing, flexible selection of part materials, flexible size adjustment of the die cavity, high repeated utilization rate of parts and material saving.
The utility model has the advantages that the structure of each main part is easy to process, such as the magnetic conductive plate A with high manufacturing frequency and high hardness and the nonmagnetic plate A can be processed by a common linear cutting machine and a plane grinding machine. The assembly contours of the magnetic conduction plate A, the magnetic conduction plate support and the non-magnetic plate A are square, and the square contours are directly machined by a surface grinding machine, so that high-precision machining of groove and boss special-shaped structures is avoided, machining difficulty and requirements on machining equipment are reduced, and machining precision and machining efficiency are improved. And only need the functional part of once installation, namely dog and briquetting, adopt embedded structure, combine more firmly with the main part. Secondly, after the structure of the utility model is adopted, the size of the die cavity can be quickly and flexibly adjusted. Compared with the prior art, the magnetic conduction plate A assembly can adjust the size and the position of the groove, and the widths of the magnetic conduction plate A and the nonmagnetic plate A directly determine the size of a die cavity, so that the magnetic conduction plates A and the nonmagnetic plates A with different widths can be prepared in advance, and then the required die can be rapidly finished and assembled as long as the width sizes are processed according to the requirement.
For the same die cavity, the non-orientation dimension of the die cavity can be unidirectionally adjusted on the premise of not replacing parts, and the non-orientation dimension of the die cavity is reduced by reducing the width of the magnetic conduction plate A; the orientation direction dimension can be unidirectionally adjusted, and the mold cavity orientation dimension can be reduced by reducing the width of the nonmagnetic plate A. Therefore, under the condition that the sintering shrinkage change of the pressed compact product is uncertain, the die size can be firstly increased, and the die size is slightly processed to determine the size after the shrinkage is determined. And the parts are flexible in material use, so that the materials are saved. The mould lining adopts a splicing structure, so that the material is saved compared with the prior art that the lining is manufactured by taking out the core part of the whole material. The structural strength of each bracket is only required to be ensured, each bracket can be reused for a long time, and particularly, the bracket with the maximum material consumption of the magnetic conduction plate can be used as a standard component and prepared to be used. The chamfer block can be used repeatedly as a standard part, and four edges of the chamfer block can be chamfered for use, so that the utilization rate is high. The magnetic conductive plate A and the nonmagnetic plate A can use materials with high hardness and high wear resistance, the service life is prolonged, the utilization rate is improved, and the magnetic conductive plate A and the nonmagnetic plate A can be directly matched with different dies for use, and can also be changed into small ones for continuous use. Compared with the prior art, the utility model can also realize that the assembly part of the magnetic conduction plate A is composed of different characteristic materials, for example, the magnetic conduction plate A can also adopt non-magnetic materials, and the uniformity of the magnetic field in the die cavity is improved. The chamfering clamp is used for enabling the chamfering of the chamfering block to be simple and easy to process, and meanwhile, the matching precision of the demoulding inclination of the chamfering block and the demoulding inclination of the magnetic conduction plate and the non-magnetic plate A is guaranteed.
Drawings
Fig. 1 is an exploded view of the present utility model.
Fig. 2 is a schematic diagram of the structure of the present utility model.
Fig. 3 is a top view of the present utility model.
Fig. 4 is a schematic diagram of a second embodiment of the present utility model.
Fig. 5 is a schematic view of a chamfering jig of the present utility model.
Fig. 6 is an enlarged view of the chamfer assembly of the present utility model.
In the figure:
1-magnetic conduction plate support, 2-chamfer block, 3-stop block, 4-magnetic conduction plate A, 5-press block, 6-non-magnetic plate support, 7-non-magnetic plate A, 8-countersink, 9-boss A, 10-internal thread A, 11-groove A, 12-T-shaped groove, 13-jackscrew groove, 14-jackscrew internal thread, 15-boss B, 16-internal thread B, 17-groove B, 18-straight slot countersink A, 19-boss C, 20-groove C, 21-chamfer clamp, 22-processing groove and 23-fastening threaded hole.
Detailed Description
The technical solution of the present utility model is further described below, but the scope of the claimed utility model is not limited to the above.
As shown in fig. 1-6, a combined die for forming special-shaped square block blanks by using a magnetic field of neodymium iron boron comprises a magnetic conduction plate assembly, a non-magnetic plate assembly, a chamfer block 2 and a fastener; the magnetic conduction plate assembly is vertically connected with the nonmagnetic plate assembly through a fastener; the chamfer block 2 is positioned at the joint of the magnetic conduction plate assembly and the non-magnetic plate assembly; the magnetic conduction plate assembly comprises a magnetic conduction plate bracket 1, a magnetic conduction plate A4, a stop block 3 and a pressing block 5; the pressing blocks 5 are positioned on two sides of the magnetic conduction plate bracket 1; the stop block 3 and the magnetic conduction plate A4 are positioned on the front surface of the magnetic conduction plate bracket 1; the magnetic conduction plate A4 is arranged in the middle of the magnetic conduction plate bracket 1; the nonmagnetic plate assembly comprises a nonmagnetic plate bracket 6 and a nonmagnetic plate A7; the nonmagnetic plate A7 is arranged at the middle position of the nonmagnetic plate bracket 6.
The stop block 3 is provided with a counter bore 8 and a boss A9; the front surface of the magnetic conduction plate bracket 1 is provided with an internal thread A10 and a groove A11; the stop block 3 is embedded in a groove A11 on the front surface of the magnetic conduction plate bracket 1 through a boss A9, and the stop block 3 is connected with the magnetic conduction plate bracket 1 through a fastener.
The magnetic conduction plate A4 is provided with a T-shaped groove 12 and a jackscrew groove 13; the back of the magnetic conduction plate bracket 1 is provided with a counter bore 8 and a jackscrew internal thread 14; the magnetic conduction plate A4 is arranged on the magnetic conduction plate bracket 1 through a fastener and jackscrews.
The pressing block 5 is provided with a counter bore 8 and a boss B15; the side surface of the magnetic conduction plate bracket 1 is provided with an internal thread B16 and a groove B17; the pressing block 5 is embedded in a groove B17 on the side surface of the magnetic conduction plate bracket 1 through a boss B15, and the stop block 3 is connected with the magnetic conduction plate bracket 1 through a fastener.
The back of the magnetic conduction plate bracket 1 is provided with a straight slot counter sunk hole A18; the width of the straight groove countersunk head hole A18 is larger than the width of a nut on the bolt.
A boss C19 is arranged on the nonmagnetic plate A7; the nonmagnetic plate bracket 6 is provided with a groove C20; the nonmagnetic plate A7 is connected with the groove C20 of the nonmagnetic plate bracket 6 through the boss C19.
The magnetic conduction plate assembly is provided with two groups and is symmetrically arranged in position; the non-magnetic plate assembly is provided with two groups, is symmetrically arranged in position and is positioned between the two groups of magnetic plate assemblies.
Four chamfering blocks 2 are arranged; the thickness of the chamfer block 2 is the same as that of the nonmagnetic plate A7, and the width of the chamfer block 2 is the same as that of the magnetic plate.
The fastener is set to be an inner hexagon bolt.
The chamfering block 2 is machined by a chamfering clamp 21; the chamfering jig 21 is provided with a processing groove 22 and a fastening screw hole 23; the bevel of the machining groove 22 is 45 deg. to the machining surface.
Working principle:
the female die cavity consists of two groups of magnetic conduction plate assemblies, two groups of non-magnetic plate assemblies, four chamfer blocks 2 and fastening pieces. The magnetic conduction plate assembly consists of a magnetic conduction plate A4, a magnetic conduction plate bracket 1, a baffle block and a pressing block 5, the non-magnetic plate assembly consists of a non-magnetic plate A7 and a non-magnetic plate bracket 6, and the magnetic conduction plate assembly, the chamfering block 2 and the non-magnetic plate assembly are connected through an inner hexagonal screw and a nut. The non-magnetic plate A7 is provided with a dovetail, namely a boss C19, the non-magnetic plate support 6 is provided with a corresponding dovetail groove, namely a groove C20, the width of the non-magnetic plate A7 is smaller than that of the non-magnetic plate support 6, and the dovetail of the non-magnetic plate A7 is inserted into the dovetail groove of the non-magnetic plate support 6 during installation to form a non-magnetic plate A7 boss assembly, so that the non-magnetic plate A7 and the non-magnetic plate support 6 are connected into a whole in the pressing direction and the non-orientation direction. In addition, through holes are formed in the orientation direction of the nonmagnetic plate support 6 and are used for passing the inner hexagonal screw fasteners. Grooves A11 are formed in the two ends of the magnetic conduction plate support 1, bosses A9 with corresponding sizes are formed in the stop blocks 3, and the bosses A9 of the stop blocks 3 are embedded into the grooves A11 of the magnetic conduction plate support 1 during installation. Simultaneously, the two ends of the magnetic conduction plate support 1 are provided with internal threads A10 in the orientation direction, the stop block 3 is provided with countersunk holes 8 in the orientation direction, the stop block 3 and the magnetic conduction plate support 1 are connected into a whole through an internal hexagonal screw, the stop block 3 and the magnetic conduction plate support 1 form a fixed groove shape, meanwhile, the stop block 3 is provided with internal threads in the non-orientation direction, the screwing depth of the internal threads can be determined along with the size of a die cavity in the non-orientation direction and the size position of related parts, the screws limit the relative movement of the non-magnetic plate assembly, the chamfer block 2 and the magnetic conduction plate A4 and the magnetic conduction plate support 1 in the non-orientation direction, and the clamping force generated after the screws are tightened can limit the relative movement of the non-magnetic plate assembly, the chamfer block 2 and the magnetic conduction plate A4 in the pressing direction, so that the magnetic conduction plate assembly and the non-magnetic conduction plate assembly are connected into a whole in the non-orientation direction. The magnetic conduction plate bracket 1 is provided with a countersunk hole 8 at the position for installing the magnetic conduction plate A4, a T-shaped groove 12 is formed in the non-orientation direction of the corresponding position of the magnetic conduction plate A4, a nut can be arranged in the T-shaped groove 12 and can pass through but cannot rotate, the nut in the countersunk hole 8 is connected with the nut in the T-shaped groove 12 through an inner hexagonal screw, the magnetic conduction plate A4 is fixed on the magnetic conduction plate bracket 1, and the relative movement of the magnetic conduction plate A4 and the magnetic conduction plate bracket 1 in the orientation direction is limited; the magnetic conduction plate support 1 is additionally provided with a jackscrew internal thread 14 at the position of the magnetic conduction plate A4, a jackscrew groove 13 is arranged at the corresponding position of the magnetic conduction plate A4 in a non-orientation direction, and the jackscrew can limit the relative movement of the magnetic conduction plate A4 and the magnetic conduction plate support 1 in the pressing direction. The magnetic conduction plate support 1 is provided with straight slot countersunk holes A18 which are symmetrically arranged, and the function of the straight slot countersunk holes A18 is to insert an inner hexagonal screw and a nut according to the position of the non-magnetic plate assembly, the magnetic conduction plate support 1, the chamfer block 2 and the non-magnetic plate A7 are mutually clamped through the locking screw and the nut and are connected into a whole in the orientation direction, and the relative movement between the magnetic conduction plate support 1, the chamfer block 2 and the non-magnetic plate A7 in the pressing direction is limited by friction force generated by clamping. So far, relative motion between each part is mutually limited by taking the magnetic conduction plate bracket 1 as a reference, each part is connected into a whole, and the magnetic conduction plate A4, the chamfer block 2 and the non-magnetic plate A7 are spliced to form a square die cavity with a chamfer at the edge. The width of the nonmagnetic plate A7 determines the dimension of the mold cavity in the orientation direction, and the width of the magnetic conductive plate A4 determines the dimension of the mold cavity in the non-orientation direction. The shape of the pressed compact pressed by the die cavity is shown as the figure, and the edge of the pressed compact is provided with a chamfer. Grooves B17 are formed in the two ends of the magnetic conduction plate support 1, bosses B15 with corresponding sizes are formed in the pressing block 5, and the bosses B15 of the pressing block 5 are embedded into the grooves B17 of the magnetic conduction plate support 1 during installation. The two ends of the magnetic conduction plate bracket 1 are provided with internal threads B16 in the non-orientation direction, the pressing block 5 is provided with a countersunk hole 8 in the non-orientation direction, and the pressing block 5 and the magnetic conduction plate bracket 1 are connected into a whole through an internal hexagonal screw. The pressing block 5 has the function of connecting the female die and the pressing machine into a whole through the pressing plate when the die is used. The chamfering fixture 21 for machining the chamfer angle of the chamfer angle block 2 is arranged, the chamfer angle block 2 is fixed on a fixture station, the machining target height is determined to be machined and checked according to the target size of the chamfer angle block 2 and the thickness of the magnetic conduction plate A4, the thickness of the non-magnetic plate A7 and the target chamfer angle, and the demoulding inclination of the working face of the chamfer angle block 2 is also fixed on the fixture for further machining.
Claims (5)
1. A combination formula mould of special-shaped square lump material base for neodymium iron boron is formed with magnetic field, its characterized in that: comprises a magnetic conduction plate assembly, a non-magnetic plate assembly, a chamfer block (2) and a fastener; the magnetic conduction plate assembly is vertically connected with the nonmagnetic plate assembly through a fastener; the chamfer block (2) is positioned at the joint of the magnetic conduction plate assembly and the non-magnetic plate assembly; the magnetic conduction plate assembly comprises a magnetic conduction plate bracket (1), a magnetic conduction plate A (4), a stop block (3) and a pressing block (5); the pressing blocks (5) are positioned at two sides of the magnetic conduction plate bracket (1); the stop block (3) and the magnetic conduction plate A (4) are positioned on the front surface of the magnetic conduction plate bracket (1); the magnetic conduction plate A (4) is arranged in the middle of the magnetic conduction plate bracket (1); the nonmagnetic plate assembly comprises a nonmagnetic plate bracket (6) and a nonmagnetic plate A (7); the nonmagnetic plate A (7) is arranged at the middle position of the nonmagnetic plate bracket (6);
the stop block (3) is provided with a counter bore (8) and a boss A (9); the front surface of the magnetic conduction plate bracket (1) is provided with an internal thread A (10) and a groove A (11); the stop block (3) is embedded in a groove A (11) on the front surface of the magnetic conduction plate bracket (1) through a boss A (9), and the stop block (3) is connected with the magnetic conduction plate bracket (1) through a fastener;
the pressing block (5) is provided with a counter bore (8) and a boss B (15); an internal thread B (16) and a groove B (17) are arranged on the side surface of the magnetic conduction plate bracket (1); the pressing block (5) is embedded in a groove B (17) on the side surface of the magnetic conduction plate bracket (1) through a boss B (15), and the pressing block (5) is connected with the magnetic conduction plate bracket (1) through a fastener;
the back of the magnetic conduction plate bracket (1) is provided with a straight slot countersunk head hole A (18); the width of the straight slot countersunk head hole A (18) is larger than the width of a nut on the bolt;
four chamfering blocks (2) are arranged;
the chamfering block (2) is machined through a chamfering clamp (21); the chamfering clamp (21) is provided with a processing groove (22) and a fastening threaded hole (23); the inclined surface of the processing groove (22) is 45 degrees with the processing surface.
2. The modular die for forming special-shaped square block blanks by using a magnetic field for neodymium iron boron according to claim 1, wherein the die comprises the following components: a T-shaped groove (12) and a jackscrew groove (13) are formed in the magnetic conduction plate A (4); the back of the magnetic conduction plate bracket (1) is provided with a counter bore (8) and a jackscrew internal thread (14); the magnetic conduction plate A (4) is arranged on the magnetic conduction plate bracket (1) through a fastener and a jackscrew.
3. The modular die for forming special-shaped square block blanks by using a magnetic field for neodymium iron boron according to claim 1, wherein the die comprises the following components: a boss C (19) is arranged on the nonmagnetic plate A (7); the nonmagnetic plate bracket (6) is provided with a groove C (20); the nonmagnetic plate A (7) is connected with the groove C (20) of the nonmagnetic plate bracket (6) through the boss C (19).
4. The modular die for forming special-shaped square block blanks by using a magnetic field for neodymium iron boron according to claim 1, wherein the die comprises the following components: the magnetic conduction plate assembly is provided with two groups and is symmetrically arranged in position; the non-magnetic plate assembly is provided with two groups, is symmetrically arranged in position and is positioned between the two groups of magnetic plate assemblies.
5. The modular die for forming special-shaped square block blanks by using a magnetic field for neodymium iron boron according to claim 1, wherein the die comprises the following components: the fastener is set to be an inner hexagon bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612145.1A CN109434100B (en) | 2018-12-27 | 2018-12-27 | Combined die for forming special-shaped square block blank by using magnetic field for neodymium iron boron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811612145.1A CN109434100B (en) | 2018-12-27 | 2018-12-27 | Combined die for forming special-shaped square block blank by using magnetic field for neodymium iron boron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109434100A CN109434100A (en) | 2019-03-08 |
| CN109434100B true CN109434100B (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811612145.1A Active CN109434100B (en) | 2018-12-27 | 2018-12-27 | Combined die for forming special-shaped square block blank by using magnetic field for neodymium iron boron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109434100B (en) |
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| CN110517884A (en) * | 2019-09-29 | 2019-11-29 | 中铝广西有色金源稀土有限公司 | A kind of neodymium-iron-boron magnetic material compacting tool set |
| CN111168816A (en) * | 2019-12-23 | 2020-05-19 | 湖南航天磁电有限责任公司 | Ferrite permanent magnet sample rapid preparation device |
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