CN201275622Y - Tile-shaped mold of rare-earth permanent magnetic material - Google Patents
Tile-shaped mold of rare-earth permanent magnetic material Download PDFInfo
- Publication number
- CN201275622Y CN201275622Y CNU2008202220307U CN200820222030U CN201275622Y CN 201275622 Y CN201275622 Y CN 201275622Y CN U2008202220307 U CNU2008202220307 U CN U2008202220307U CN 200820222030 U CN200820222030 U CN 200820222030U CN 201275622 Y CN201275622 Y CN 201275622Y
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- upper cover
- cover plate
- earth permanent
- lower shoe
- rare earth
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Abstract
The utility model discloses a tiled mold for rare earth permanent magnetic materials, which comprises six parts: an upper cover plate, a lower base plate, a front and a back side plates, a left and a right pressure heads, wherein, the upper cover plate and the lower base plate carry out compression through an upper and a lower orientation pressing machines; the front and the back side plates carry out clamping and fixing through a fixture; the left and the right pressure heads carry out counter pressure through a left and a right oil cylinders; a tiled cavity is surrounded by the six parts; two forming convex plates, of which the tops are arc forming surfaces, are mounted correspondingly at the middle parts of the inner sides of the upper cover plate and the lower base plate respectively; and the front and the back side plates are located between the upper cover plate and the lower base plate, and on the front and the back sides of the forming convex plate. The tiled mold has the advantages that the structure is simple and reasonable; blanks can be formed by one step and the locating of each part of the mold is accurate; the quality of the formed products is high; the forming of the tiled blanks with rare earth permanent magnetic materials can be realized simply and conveniently; the raw material waste can be greatly reduced; and the cost is saved.
Description
Technical field
The utility model relates to a kind of mould, especially relates to a kind of rare earth permanent-magnetic material watt shape mould.
Background technology
The sintered rare-earth permanent magnetic blank is roughly the same with the structure and the operation principle of mould, below is that example describes with the mould of NdFeB material.Because NdFeB material generally all need be finished orientation simultaneously in the formed product process, thereby at present at the employed mould of this material, adopting left and right sides cylinder to carry out also installing the orientation press up and down additional and suppressing mostly at the use mould to when pressing.In addition, rare earth permanent-magnetic material is after be press formed into sintering and come out of the stove, the factor with aspect such as Distribution of Magnetic Field because its internal pressure distributes, and institute's molded blank all directions all can have contraction in various degree.Generally speaking, the shrinkage ratio of its left and right sides pressing direction is 1.17-1.20 before and after the blank moulding; The shrinkage ratio of differently-oriented directivity is 1.30-1.41 up and down, and this direction influenced by flouring technology bigger; And the mould direction is the shrinkage ratio of blank fore-and-aft direction is 1.21-1.23.Therefore, during the mould design, must consider above-mentioned factor, its die size=(needing size+finish allowance) * constriction coefficient, it is block or bar-shaped to use such mould institute converted products to be generally, and product special for shape, that be difficult to suppress, the generally moulding with the cutting of bulk stockline; Especially for a watt shape material, after the software setting-out of general in the past employing CAD and so on, adopt with the machine-shaping of line cutting mode, but above-mentioned moulding process all causes the significant wastage of raw material.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of rare earth permanent-magnetic material watt shape mould is provided, it is simple and reasonable, blank one-shot forming and the accurate positioning of mould each several part, institute's shaped article quality height, moulding that can simple and convenient realization rare earth permanent-magnetic material watt shape blank and can reduce waste of raw materials significantly, save cost.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of rare earth permanent-magnetic material watt shape mould, it is characterized in that: by by be orientated up and down former and later two side plates that upper cover plate that press suppresses and lower shoe, employing anchor clamps are fixedly clamped and respectively by about two oil cylinders carry out six parts of two pressure heads about pressing are formed, described six parts surround one watt of shape die cavity; The moulding boss that it is the arc forming surface that the middle inside correspondence of the middle inside of described upper cover plate and lower shoe is respectively arranged with a top, former and later two side plates are all between upper cover plate and lower shoe and lay respectively at the both sides, front and back of described moulding boss.
The arc forming surface shape that the arc forming surface of described upper cover plate is shaped as arc convex shape and lower shoe corresponds to the arc-shaped recess shape.
Described upper cover plate, lower shoe and about two pressure heads make by nonmagnetic steel or bakelite.
The utility model compared with prior art has the following advantages, and 1, simple and reasonable and processing and fabricating is convenient; 2, the middle inside correspondence of the middle inside of its upper cover plate and the lower shoe moulding boss that to be respectively arranged with a top be the arc forming surface, and former and later two side plates are all between upper cover plate and lower shoe and lay respectively at the both sides, front and back of described moulding boss, thereby, can guarantee effectively that accurately locate on mould each several part ground in the forming process; Rare earth permanent-magnetic material is packed into die cavity and cover upper cover plate after, to carry out clamping by anchor clamps before and after the utility model and be installed on the automatic pressing under magnetic field machine, afterwards by be orientated up and down press and about two oil cylinders respectively from up and down and about 4 directions respectively mould is suppressed thereby institute's shaped article quality height; 3, product forming technique is easy, and existing watt of shape production technology compared in the blank one-shot forming, has reduced the waste that former cause block blank line cutting causes, thereby can reduce raw-material waste significantly; Simultaneously, saved the following process program, its later stage only need be carried out some simple mill processing processing, thereby greatly provides cost savings.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is an external structure schematic diagram of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Description of reference numerals:
The 1-upper cover plate; The 2-lower shoe; The 3-side plate;
The 4-pressure head.
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model by by be orientated upper cover plate 1 and lower shoe 2 that press suppresses up and down, adopt former and later two side plates 3 that anchor clamps are fixedly clamped and respectively by about two oil cylinders carry out 4 six parts of two pressure heads about pressing are formed, described six parts surround one watt of shape die cavity.Wherein, the moulding boss that it is the arc forming surface that the middle inside correspondence of the middle inside of described upper cover plate 1 and lower shoe 2 is respectively arranged with a top, former and later two side plates 3 are all between upper cover plate 1 and lower shoe 2 and lay respectively at the both sides, front and back of described moulding boss.
In the present embodiment, the arc forming surface shape that the arc forming surface of described upper cover plate 1 is shaped as arc convex shape and lower shoe 2 corresponds to the arc-shaped recess shape.In addition, upper cover plate 1, lower shoe 2 and about two pressure heads 4 make by nonmagnetic steel.In the practice, upper cover plate 1, lower shoe 2 and about two pressure heads 4 also can make by bakelite.
The course of work of the present utility model is: at first, with the rare earth permanent-magnetic material fine powder pack into by lower shoe 2, former and later two side plates 3 and about two die cavities that pressure head 4 surrounds, cover upper cover plate 1 again; Afterwards, with carrying out clamping by anchor clamps before and after the utility model and being installed on the automatic pressing under magnetic field machine, finish the one-shot forming of the rare earth permanent-magnetic material watt shape blank that is contained in its die cavity inside.In the forming process of product, by be orientated up and down press and about two oil cylinders respectively from up and down and about 4 directions respectively mould is suppressed.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (3)
1. rare earth permanent-magnetic material watt shape mould, it is characterized in that: by by be orientated upper cover plate (1) and lower shoe (2) that press suppresses up and down, adopt former and later two side plates (3) that anchor clamps are fixedly clamped and respectively by about two oil cylinders carry out (4) six parts of two pressure heads about pressing are formed, described six parts surround one watt of shape die cavity; The moulding boss that it is the arc forming surface that the middle inside correspondence of the middle inside of described upper cover plate (1) and lower shoe (2) is respectively arranged with a top, former and later two side plates (3) all are positioned between upper cover plate (1) and the lower shoe (2) and lay respectively at the both sides, front and back of described moulding boss.
2. according to the described a kind of rare earth permanent-magnetic material of claim 1 watt shape mould, it is characterized in that: the arc forming surface shape that the arc forming surface of described upper cover plate (1) is shaped as arc convex shape and lower shoe (2) corresponds to the arc-shaped recess shape.
3. according to claim 1 or 2 described a kind of rare earth permanent-magnetic material watt shape moulds, it is characterized in that: described upper cover plate (1), lower shoe (2) and about two pressure heads (4) make by nonmagnetic steel or bakelite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202220307U CN201275622Y (en) | 2008-10-24 | 2008-10-24 | Tile-shaped mold of rare-earth permanent magnetic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202220307U CN201275622Y (en) | 2008-10-24 | 2008-10-24 | Tile-shaped mold of rare-earth permanent magnetic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201275622Y true CN201275622Y (en) | 2009-07-22 |
Family
ID=40893201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202220307U Expired - Fee Related CN201275622Y (en) | 2008-10-24 | 2008-10-24 | Tile-shaped mold of rare-earth permanent magnetic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201275622Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962449A (en) * | 2012-11-23 | 2013-03-13 | 江西金力永磁科技有限公司 | Magnetic material powder forming device and method |
-
2008
- 2008-10-24 CN CNU2008202220307U patent/CN201275622Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962449A (en) * | 2012-11-23 | 2013-03-13 | 江西金力永磁科技有限公司 | Magnetic material powder forming device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XI AN XIGONGDA SIQIANG TECHNOLOGY CO., LTD. Free format text: FORMER NAME: XI AN SIQIANG TECHNOLOGY LIMITED CORP. NWPU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710065 No. five, No. 18, hi tech Zone, Shaanxi, Xi'an Patentee after: Xi'an Xigongda Siqiang Technology Co., Ltd. Address before: 710065 No. five, No. 18, hi tech Zone, Shaanxi, Xi'an Patentee before: Xi'an Siqiang Technology Limited Corp. NWPU |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20141024 |
|
| EXPY | Termination of patent right or utility model |