CN103100710A - Press forming die of small-hole special-shaped part - Google Patents
Press forming die of small-hole special-shaped part Download PDFInfo
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- CN103100710A CN103100710A CN2013100330168A CN201310033016A CN103100710A CN 103100710 A CN103100710 A CN 103100710A CN 2013100330168 A CN2013100330168 A CN 2013100330168A CN 201310033016 A CN201310033016 A CN 201310033016A CN 103100710 A CN103100710 A CN 103100710A
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- upper punch
- undershoot
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- endoporus
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Abstract
The invention relates to a press forming die of a small-hole special-shaped part. The press forming die comprises a female die, an upper punch, a lower punch and a core rod. The female die is provided with a die hole which is vertically through. The upper punch penetrates through the die hole from top to bottom and has a vertically lifting stroke relative to the female die. The lower punch penetrates through the die hole from bottom to top. The upper punch is provided with an upper punch inner hole, and a lower punch inner hole is formed on the lower punch, opposite to the upper punch inner hole. The core rod penetrates through the upper punch inner hole from the lower punch inner hole and is oppositely fixed with the female die. The powder discharge cut communicated with the outside and the upper punch inner hole is formed on the side wall of the upper punch. Due to the fact that the powder discharge cut communicated with the outside and the upper punch inner hole is formed on the side wall of the upper punch and power can be discharged from a die from the powder discharge cut during press forming of powder by the upper punch and the lower punch, abrasion caused by friction between the core rod and powder is relieved, blocking of the upper punch inner hole is prevented, breakage of the core rod is avoided, service life of the die is prolonged, frequency of replacing the die is greatly reduced, and production efficiency is improved. The press forming die is applicable to press forming of the small-hole special-shaped part.
Description
Technical field
The present invention relates to the mould of powder pressing forming, particularly a kind of press-moulding die of Small Holes shaped piece.
Background technology
Compressing is that the powder that utilizes pressure will be placed in mould is compacted to close structure, becomes the manufacturing process of the base substrate with definite shape and size.
All generally to realize in such a way for the shaped piece formed product with Small Holes (1mm following hole): set out the upper punch endoporus that runs through upper punch rod upper and lower side and the undershoot endoporus that runs through undershoot rod upper and lower side in the upper punch position corresponding with undershoot, the plug that equates with the Small Holes aperture penetrates the upper punch endoporus from the bottom to top from undershoot endoporus lower end, and relative with master mold fixing, the moulding in master mold in the process that upper punch rod and undershoot rod liquidate of metallurgical powder or Magnaglo.
Unnecessary powder is mainly to discharge from the upper end of upper punch endoporus and the lower end of undershoot endoporus in the process of above-mentioned work, but because powder constantly is filled between upper punch endoporus, undershoot endoporus and plug, first can cause the wearing and tearing of plug; The secondth, after increasing gradually, can cause in powder the obstruction of upper punch endoporus, directly cause mandrel fracture, can cause the breakage of upper punch rod and undershoot rod mould section in the time of mandrel fracture, affect the life-span of mould, more indirectly cause the increase of the die cost of knowing clearly when mold exchange, and maintenance and lead-time also can be reduced production efficiency virtually.
Summary of the invention
In order to overcome above-mentioned technical problem, the object of the present invention is to provide the press-moulding die that a kind of die life is long, be beneficial to the Small Holes shaped piece of enhancing productivity.
The technical solution adopted in the present invention is:
A kind of press-moulding die of Small Holes shaped piece, comprise master mold, upper punch, undershoot and plug, described master mold is provided with the nib that communicates up and down, described upper punch from top to bottom penetrate nib and relatively master mold have the stroke of oscilaltion, described undershoot by under penetrate nib up, described upper punch is provided with the upper punch endoporus, the described undershoot position relative with the upper punch endoporus is provided with the undershoot endoporus, described plug penetrates upper punch endoporus and relative with master mold fixing by the undershoot endoporus, and the sidewall of described upper punch is provided with the row's powder otch that is communicated with extraneous and upper punch endoporus.
As a further improvement on the present invention, described row's powder otch is opened in position on the lower, upper punch middle part, and described row's powder otch length along the vertical direction is not less than 10mm.
As a further improvement on the present invention, described upper punch is provided with the upper punch die holder of coating and affixed upper punch outer wall, and described row's powder otch is below the upper punch die holder.
As a further improvement on the present invention, the sidewall of described undershoot is provided with the powder outlet that is communicated with extraneous and undershoot endoporus.
As a further improvement on the present invention, described powder outlet is opened in top position, undershoot middle part, and described powder outlet length along the vertical direction is not less than 10mm.
As a further improvement on the present invention, described undershoot is provided with the down stroke module seat of coating and affixed undershoot outer wall, and described powder outlet is above down stroke module seat.
As a further improvement on the present invention, the relative master mold of described undershoot has the stroke of oscilaltion.
The invention has the beneficial effects as follows: the present invention offers the row's powder otch that is communicated with extraneous and upper punch endoporus on the sidewall of upper punch, upper punch and undershoot are during to powder pressing forming, powder can be from row's powder otch break away from moulds, the wearing and tearing that between plug and powder, friction causes have been alleviated, prevent the obstruction of upper punch endoporus, avoid plug and rupture because of the interior hole plug of upper punch, extended the mold use life-span, thereby greatly lower the more frequency of mold exchange, improved production efficiency.
Description of drawings
The present invention is further described below in conjunction with drawings and embodiments.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of upper punch;
Fig. 3 is the structural representation of undershoot;
Fig. 4 is the enlarged diagram of A part in Fig. 1.
The specific embodiment
As Figure 1-Figure 4, a kind of press-moulding die of Small Holes shaped piece comprises master mold 1, upper punch 2, undershoot 3 and plug 4.Master mold 1 which is provided with for maintaining static the nib that communicates up and down.Upper punch 2 penetrates nib from top to bottom, and relatively master mold 1 has the stroke of oscilaltion, undershoot 3 by under penetrate nib up.
As further preferred embodiment, row's powder otch 22 is opened in position on the lower, upper punch 2 middle parts, row's powder otch 22 exposes under the prerequisite of master mold 1 in guaranteeing upper punch 2 courses of work, and row's powder otch 22 is the closer to die cavity 4, and unnecessary powder i.e. break away from moulds more fast and effectively.Before unnecessary powder is discharged from row's powder otch 22, its arrangement is also more closely, if row's powder otch 22 is too short, powder might not have enough time to discharge and namely enters upper punch endoporus 21 at row's powder otch 22 upper sections, and therefore arranging powder otch 22 length along the vertical direction is not less than 10mm.Also there is relation in the aperture of this length and Small Holes, and when the Small Holes aperture increased progressively in 1mm, this length is corresponding increasing progressively also.
As further preferred embodiment, upper punch 2 is provided with the upper punch die holder 23 of coating and affixed upper punch 2 outer walls, and row's powder otch 22 is exposed to upper punch die holder 23 below upper punch die holder 23.
As further preferred embodiment, the relative master mold 1 of undershoot 3 also has the stroke of oscilaltion, and the process of mould compacted products is the process that upper punch 2 and undershoot 3 liquidate up and down.
As further preferred embodiment, the sidewall of undershoot 3 is provided with the powder outlet 32 that is communicated with extraneous and undershoot endoporus 31.After formed product, in unnecessary powder except a part from upper punch endoporus 21 is discharged, another part is discharged downwards from undershoot endoporus 31, after having offered powder outlet 32, the powder of this part just need not to discharge from undershoot 3 bottoms through whole undershoot endoporus 31, but directly at powder outlet 32 break away from moulds, has reduced greatly the friction between plug 4, undershoot endoporus 31 and powder, alleviate the wearing and tearing of plug 4, extended the mold use life-span.
As further preferred embodiment, powder outlet 32 is opened in top position, undershoot 3 middle parts, exposes under the prerequisite of master mold 1 in the most of structure of powder outlet 32, the closer to die cavity 4, arranges the powder effect better.Powder outlet 32 length along the vertical direction is not less than 10mm.
As further preferred embodiment, undershoot 3 is provided with the down stroke module seat 33 of coating and affixed undershoot 3 outer walls, and powder outlet 32 is above down stroke module seat 33.
The above is the preferred embodiment of the present invention, and it does not consist of limiting the scope of the invention.
Claims (7)
1. the press-moulding die of a Small Holes shaped piece, it is characterized in that: comprise master mold (1), upper punch (2), undershoot (3) and plug (4), described master mold (1) is provided with the nib that communicates up and down, described upper punch (2) from top to bottom penetrate nib and relatively master mold (1) have the stroke of oscilaltion, described undershoot (3) by under penetrate nib up, described upper punch (2) is provided with upper punch endoporus (21), described undershoot (3) position relative with upper punch endoporus (21) is provided with undershoot endoporus (31), described plug (4) penetrates upper punch endoporus (21) and relative fixing with master mold (1) by undershoot endoporus (31), the sidewall of described upper punch (2) is provided with the row's powder otch (22) that is communicated with extraneous and upper punch endoporus (21).
2. the press-moulding die of Small Holes shaped piece according to claim 1, it is characterized in that: described row's powder otch (22) is opened in position on the lower, upper punch (2) middle part, and described row's powder otch (22) length along the vertical direction is not less than 10mm.
3. the press-moulding die of Small Holes shaped piece according to claim 1, it is characterized in that: described upper punch (2) is provided with the upper punch die holder (23) of coating and affixed upper punch (2) outer wall, and described row's powder otch (22) is in the below of upper punch die holder (23).
4. the press-moulding die of according to claim 1 and 2 or 3 described Small Holes shaped pieces is characterized in that: the sidewall of described undershoot (3) is provided with the powder outlet (32) that is communicated with extraneous and undershoot endoporus (31).
5. the press-moulding die of Small Holes shaped piece according to claim 4, it is characterized in that: described powder outlet (32) is opened in top position, undershoot (3) middle part, and described powder outlet (32) length along the vertical direction is not less than 10mm.
6. the press-moulding die of according to claim 4 or 5 described Small Holes shaped pieces, it is characterized in that: described undershoot (3) is provided with the down stroke module seat (33) of coating and affixed undershoot (3) outer wall, and described powder outlet (32) is in the top of down stroke module seat (33).
7. the press-moulding die of according to claim 1 and 2 or 3 described Small Holes shaped pieces is characterized in that: described undershoot (3) master mold (1) relatively has the stroke of oscilaltion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310033016.8A CN103100710B (en) | 2013-01-28 | 2013-01-28 | Press forming die of small-hole special-shaped part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310033016.8A CN103100710B (en) | 2013-01-28 | 2013-01-28 | Press forming die of small-hole special-shaped part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103100710A true CN103100710A (en) | 2013-05-15 |
| CN103100710B CN103100710B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310033016.8A Active CN103100710B (en) | 2013-01-28 | 2013-01-28 | Press forming die of small-hole special-shaped part |
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| Country | Link |
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| CN (1) | CN103100710B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736998A (en) * | 2013-12-31 | 2014-04-23 | 昆山优磁电子有限公司 | RH type magnetic core mould |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417335A (en) * | 2007-09-04 | 2009-04-29 | 伯吉斯-诺顿制造有限公司 | Method of manufacturing crankshaft bushing |
| CN201677030U (en) * | 2010-04-21 | 2010-12-22 | 全椒县中信精密模具有限公司 | Mold |
| CN201776442U (en) * | 2010-05-28 | 2011-03-30 | 标旗磁电产品(佛冈)有限公司 | Novel powder metallurgy press mold |
| CN202143952U (en) * | 2011-05-16 | 2012-02-15 | 标旗磁电产品(佛冈)有限公司 | Novel offset type core rod mould |
-
2013
- 2013-01-28 CN CN201310033016.8A patent/CN103100710B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417335A (en) * | 2007-09-04 | 2009-04-29 | 伯吉斯-诺顿制造有限公司 | Method of manufacturing crankshaft bushing |
| CN201677030U (en) * | 2010-04-21 | 2010-12-22 | 全椒县中信精密模具有限公司 | Mold |
| CN201776442U (en) * | 2010-05-28 | 2011-03-30 | 标旗磁电产品(佛冈)有限公司 | Novel powder metallurgy press mold |
| CN202143952U (en) * | 2011-05-16 | 2012-02-15 | 标旗磁电产品(佛冈)有限公司 | Novel offset type core rod mould |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736998A (en) * | 2013-12-31 | 2014-04-23 | 昆山优磁电子有限公司 | RH type magnetic core mould |
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| Publication number | Publication date |
|---|---|
| CN103100710B (en) | 2015-03-18 |
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Address after: No.4, Canghai 4th Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangzhou, Guangdong 511356 Patentee after: Guangzhou xinlaifu New Material Co.,Ltd. Address before: 511356 No. 4, Canghai Fourth Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangdong Province Patentee before: Guangzhou Newlife Magnet Electricity Co.,Ltd. |