CN208976830U

CN208976830U - Radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die

Info

Publication number: CN208976830U
Application number: CN201821525741.1U
Authority: CN
Inventors: 王刚
Original assignee: Anhui Ningci Electronics Technology Co Ltd
Current assignee: Anhui Ningci Electronics Technology Co Ltd
Priority date: 2018-09-18
Filing date: 2018-09-18
Publication date: 2019-06-14
Anticipated expiration: 2028-09-18

Abstract

The utility model discloses a kind of radial magnetized neodymium ferrum boron cylindrical blanks to form whole set of die, it includes side plate that radial magnetized neodymium ferrum boron cylindrical blank, which forms whole set of die, there are two the side plate is opposite disposed, push-down head and seaming chuck are equipped between the side plate, the push-down head and seaming chuck closed end form shaping mold cavity, demarcation plate is fixed in the middle part of the side plate, the end integrated setting of two side plates has the retention bead extended inwardly, and clamping fixed has fixed plate between the inside and pushing cephalic par of the retention bead.The utility model is cooperated by seaming chuck and push-down head, neodymium-iron-boron powder can be pressed near cylindrical blank, by using various sizes of molding die, it not only can be with the product of compression moulding diameter 20mm or more, 20 mm of diameter product below can also be suppressed, it, can be with the multiple products of one-pass molding by the way that multiple groups shaping mold cavity is arranged, the production efficiency of neodymium iron boron cylinder is improved, product performance index remanent magnetism there will not be loss.

Description

Radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die

Technical field

The utility model belongs to neodium magnet production mould technical field, and in particular to a kind of radial magnetized neodymium ferrum boron cylinder hair Base forms whole set of die.

Background technique

Neodymium iron boron is briefly a kind of magnet and magnet that we usually see the difference is that it is because of excellent magnetic Performance and be referred to as " magnetic king ".Containing a large amount of rear earth element nd and iron and boron in neodymium iron boron, characteristic is hard and crisp, neodymium iron Boron makes neodymium iron boron as a kind of with high magnetic energy product and coercivity of rare earth permanent-magnetic material the advantages of high-energy density Permanent-magnet material is applied widely in modern industry and electronic technology.

Sintered NdFeB radial direction cylinder traditional processing technology at present are as follows: first method is first to produce block products, then It is cut into small side's item, finally by the round as a ball radially cylinder in small side item side.Second method is one former of design, and former center is one A ellipse hole, designs two formpistons, and two formpiston shapes are and the matched column of former hole size, when molding, former It is fixed among press orientation cartridge, formpiston is separately mounted to press up and down on two hydraulic cylinders, and when compression moulding falls powder Enter former, upper and lower formpiston produces successfully radial cylinder green compact to pressure after orientation.

But above scheme has following defects that first method in use the disadvantage is that waste material；Second method Because will into former, cloth powder, elipse hole cannot be too small, it is producible radial direction cylinder size just have limitation, generally can only The product of diameter 20mm or more is produced, while this pressing mode can have an impact to the degree of orientation of entire powder, will cause product One of them performance indicator have decline 1~2% or so, generally can only a mould go out one, production efficiency is lower.

Utility model content

The purpose of this utility model is to provide a kind of radial magnetized neodymium ferrum boron cylindrical blanks to form whole set of die, to solve The problems mentioned above in the background art.

To achieve the above object, the utility model provides the following technical solutions: a kind of radial magnetized neodymium ferrum boron cylindrical blank Forming whole set of die, including side plate there are two the side plate is opposite disposed, is equipped with push-down head and seaming chuck between the side plate, The push-down head and seaming chuck closed end form shaping mold cavity, are fixed with demarcation plate, the demarcation plate in the middle part of the side plate It is pushed against with the end of push-down head, the end integrated setting of two side plates has the retention bead extended inwardly, the limit Clamping fixed has fixed plate between the inside and pushing cephalic par of position protrusion.

Preferably, the Length x Width of the push-down head and seaming chuck is all the same.

Preferably, the sum of height of the push-down head and seaming chuck is identical as the height of side plate.

Preferably, the middle part of the side plate is equipped with card slot, and the both ends of the demarcation plate are stuck in card slot, the separation The both ends of plate are equipped with chamfering.

Preferably, the shaping mold cavity is surrounded by two half elliptic grooves, and the semiellipse groove includes being located at The elliptical arc surface section at middle part and the section section at elliptical arc surface section both ends, the section section and vertical direction included angle are 20- 30°。

The technical effect and advantage of the utility model:

The utility model is cooperated by seaming chuck and push-down head, neodymium-iron-boron powder can be pressed near cylindrical Blank, save raw material, by using various sizes of molding die, not only can with the product of compression moulding diameter 20mm or more, Diameter 20mm product below can also be suppressed, by the way that multiple groups shaping mold cavity is arranged, can be improved with the multiple products of one-pass molding The production efficiency of neodymium iron boron cylinder, product performance index remanent magnetism will not have loss.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is A-A the schematic diagram of the section structure in Fig. 1 of the utility model；

Fig. 3 is the elliptical arc surface section of the utility model, section segment structure schematic diagram.

In figure: 1 fixed plate, 2 side plates, 201 retention beads, 3 demarcation plates, 4 seaming chucks, 5 push-down heads, 6 shaping mold cavities, 7 ellipse Arc surface section, 8 sections section.

Specific embodiment

Below in conjunction with the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear, complete Site preparation description, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments. Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts Every other embodiment, fall within the protection scope of the utility model.

As shown in Figure 1-3, a kind of radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die, including side plate 2, the side plate 2 it is opposite disposed there are two, made of Cr12 die steel, push-down head 5 and seaming chuck 4 be equipped between the side plate 2, under described Pressure head 5 and 4 closed end of seaming chuck form shaping mold cavity 6, and the middle part of the side plate 2 is fixed with demarcation plate 3, the demarcation plate 3 It is pushed against with the end of push-down head 5, the end integrated setting of two side plates 2 has the retention bead 201 extended inwardly, institute Stating clamping fixed between 5 end of inside and push-down head of retention bead 201 has fixed plate 1.

The Length x Width of the push-down head 5 and seaming chuck 4 is all the same, is made of 70Mn steel, when seaming chuck 4 moves down When, the downward pressure head 5 of powder and seaming chuck 4 can be subjected to concentration compression, using push-down head 5 and seaming chuck 4 to powder carry out at Type.

The sum of the height of the push-down head 5 and seaming chuck 4 is identical as the height of side plate 2, when seaming chuck 4 is completely forced into mould When tool, the sizing to powder can be completed.

The middle part of the side plate 2 is equipped with card slot, and the both ends of the demarcation plate 3 are stuck in card slot, the demarcation plate 3 Both ends are equipped with chamfering, convenient that demarcation plate 3 is fixed.

The shaping mold cavity 6 is surrounded by two half elliptic grooves, and the semiellipse groove includes being located at middle part The section section 8 at 7 both ends of elliptical arc surface section 7 and elliptical arc surface section, the section section 8 and vertical direction included angle are 20- 30 °, product is cracked during can effectively avoid compression moulding.

A kind of production method of radial magnetized neodymium ferrum boron cylindrical blank molding whole set of die, including following operating procedure:

S1: the both ends of demarcation plate 3 are separately fixed in the groove of 2 inside of side plate, then two push-down heads 5 are divided by assembling It is not placed between the side plate 2 of 3 two sides of demarcation plate, then 1 clamping fixed of fixed plate is completed into assembling at the both ends of side plate 2；

S2: the neodymium-iron-boron powder for completing to weigh is directed respectively into the mold cavity of 3 two sides of demarcation plate by feeding, is paved uniformly；

S3: seaming chuck 4 is aligned with 3 two side areas of demarcation plate by compression moulding respectively, and half elliptic groove is downward, Confirm it is errorless after, seaming chuck 4 is completely forced into using press, the pressure of press is 90T, and press binder speed is 1cm/s, then is led to Magnetic field is crossed to powder oriented moulding, takes out mold；

S4: two side plates 2 are split to both sides first, then fixed plate 1 are taken out by demoulding, remove seaming chuck 4, take out at Neodymium iron boron cylindrical blank in pattern chamber 6 is sent into agglomerating chamber and is sintered.

The utility model is cooperated by seaming chuck 4 and push-down head 5, neodymium-iron-boron powder can be pressed near cylindrical Blank, save raw material not only can be with the production of compression moulding diameter 20mm or more by using various sizes of molding die Product can also suppress diameter 20mm product below, by the way that multiple groups shaping mold cavity 6 is arranged, can be mentioned with the multiple products of one-pass molding The high production efficiency of neodymium iron boron cylinder, product performance index remanent magnetism will not have loss.

Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims

1. a kind of radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die, including side plate (2), it is characterised in that: the side plate (2) there are two opposite disposed, push-down head (5) and seaming chuck (4), the push-down head (5) and upper pressure are equipped between the side plate (2) Head (4) closed end forms shaping mold cavity (6), is fixed with demarcation plate (3) in the middle part of the side plate (2), the demarcation plate (3) with The end of push-down head (5) pushes against, and the end integrated setting of two side plates (2) has the retention bead extended inwardly (201), clamping fixed has fixed plate (1) between the inside of the retention bead (201) and push-down head (5) end.

2. a kind of radial magnetized neodymium ferrum boron cylindrical blank according to claim 1 forms whole set of die, it is characterised in that: institute The Length x Width for stating push-down head (5) and seaming chuck (4) is all the same.

3. a kind of radial magnetized neodymium ferrum boron cylindrical blank according to claim 1 forms whole set of die, it is characterised in that: institute It is identical as the height of side plate (2) to state the sum of height of push-down head (5) and seaming chuck (4).

4. a kind of radial magnetized neodymium ferrum boron cylindrical blank according to claim 1 forms whole set of die, it is characterised in that: institute The middle part for stating side plate (2) is equipped with card slot, and the both ends of the demarcation plate (3) are stuck in card slot, the both ends of the demarcation plate (3) It is equipped with chamfering.

5. a kind of radial magnetized neodymium ferrum boron cylindrical blank according to claim 1 forms whole set of die, it is characterised in that: institute It states shaping mold cavity (6) to be surrounded by two half elliptic grooves, the semiellipse groove includes the elliptical arc surface positioned at middle part The section section (8) at section (7) and elliptical arc surface section (7) both ends, the section section (8) and vertical direction included angle are 20- 30°。