CN205020801U - Suppression device of powder forming spare with recess - Google Patents
Suppression device of powder forming spare with recess Download PDFInfo
- Publication number
- CN205020801U CN205020801U CN201520627586.4U CN201520627586U CN205020801U CN 205020801 U CN205020801 U CN 205020801U CN 201520627586 U CN201520627586 U CN 201520627586U CN 205020801 U CN205020801 U CN 205020801U
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- CN
- China
- Prior art keywords
- bottom punch
- powder forming
- punch
- former
- lug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Press Drives And Press Lines (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Powder Metallurgy (AREA)
Abstract
The utility model discloses a suppression device of powder forming spare with recess, including last stamping, bed die and bottom punch, the rear end of bottom punch is fixed on the mesa, and the front end cartridge of bottom punch is in the lower part of bed die, and the cartridge that the front end of going up the stamping can reciprocate sets up the cavity on the upper portion of bed die on the preceding terminal surface of bottom punch, and the cavity lower part sets up the elastic rubber body, the top of the elastic rubber body set up with powder forming spare on the unsteady lug that matees of groove phase, upper end protrusion in the preceding terminal surface of bottom punch of the lug that floats. Through setting up the lug supplementary suppression formation utensil notched forming parts that floats to setting up the partly pressure of elastic rubber bulk absorption through the lower part at the lug that floats, being used in the stress concentration degree of concave part position with the reduction of moderate degree, thereby obtaining equipartition pressure, the even unanimity of realization powder density, the intensity of subsequent sintering spare that has significantly reduced differ, the phenomenon of deformation, fracture and magnetic force skewness.
Description
Technical field
The utility model relates to powder compacting apparatus technical field, especially relates to the pressure setting of the reeded powder forming part of a kind of tool.
Background technology
Powder pressing is shaped also referred to as stamping of powder, and be a large amount of manufacturing process adopted during powder metallurgy is produced, its importance is only second to sintering.Namely die forming is metal dust or powder mixture are loaded in former, and pressurizeed to powder by stamping, after release, pressed compact is deviate from former, completes forming process, and technical process comprises dress powder, swaging, the demoulding and reset.The part of die forming adopts simple, symmetrical shape usually, and the parts as far as possible avoiding narrow groove uiform section to change, are beneficial to molding and compacting.But, the part such as surperficial tool reeded powder compaction part special for some shapes carries out in pressing process, the surface of lower punch die needs arrange the projection for the formation of groove, because jog stress concentration is different, very easily cause the Density Distribution of drip molding uneven, thus cause the intensity of sintered part inconsistent, produce the problems such as cracking, distortion and magnetic force skewness.
Utility model content
The utility model is for the deficiencies in the prior art, technical problem to be solved is to provide the pressure setting of the reeded powder forming part of a kind of tool, the stress concentration of groove position in compacting process is alleviated by optimizing structure, and pressure uniform is distributed, ensure the even density uniformity of powder forming part.
The utility model makes above-mentioned technical problem be solved by the following technical programs.
The pressure setting of the reeded powder forming part of tool, comprise upper punch, former and bottom punch, the rear end of bottom punch is fixed on table top, the front end of bottom punch is inserted into the bottom of former, the top being inserted into former moving up and down, the front end of upper punch, the front end face of bottom punch arranges cavity, and cavity bottom arranges elastic rubbery body, the top of elastic rubbery body arranges the floating projection with the groove match on powder forming part, and the upper end of the projection that floats protrudes from the front end face of bottom punch.After powder injects former, upper punch applies pressure downwards, the powder forming position that the projection that floats is corresponding forms groove, a part of pressure that groove bears is absorbed by the elastic deformation of elastic rubbery body, thus alleviate the stress concentration at groove position, pressure uniform is disperseed, ensures that the even density of the powder forming part obtained is consistent.
As preferably, the top of former arranges guide cylinder, and the front end of upper punch can move up and down along the inwall of guide cylinder.
As preferably, former adopts floating type compressing structure.
As preferably, the front end of bottom punch arranges rubber pattern, and rubber pattern arranges cavity.
As preferably, elastic rubbery body is polyurethane material-structure.
The beneficial effects of the utility model:
1. form the reeded drip molding of tool by arranging the auxiliary compacting of floating projection, and absorb a part of pressure by arranging elastic rubbery body in the bottom of floating projection, appropriate reduces the stress concentration acting on groove position, thus obtain uniform pressure, effectively ensure that the even density of powder forming part is consistent.
2. compact conformation is reliable, and manufacture craft simple possible is easy and simple to handle, not fragile, and maintenance management is convenient.
3. improve the density homogeneity of press-formed member, for follow-up sintering circuit provides good precondition, the intensity greatly reducing sintered part differs, be out of shape, ftracture and the phenomenon of magnetic force skewness.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-upper punch, 2-former, 3-bottom punch, 4-cavity, 5-elastic rubbery body, 6-floats projection, 7-guide cylinder.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described in detail below by embodiment.
The pressure setting of the reeded powder forming part of the utility model tool as shown in Figure 1, comprises upper punch 1, former 2 and bottom punch 3.The rear end of bottom punch 3 is fixed on table top, and the front end of bottom punch 3 is inserted into the bottom of former 2.The top being inserted into former 2 moving up and down, the front end of upper punch 1, in order to ensure the mobile accuracy of upper punch 1, arranges the guide cylinder 7 play the guiding role above former 2, and the front end of upper punch 1 can move up and down along the inwall of guide cylinder 7.The front end face of bottom punch 3 is arranged cavity 4, cavity 4 bottom arranges elastic rubbery body 5, preferred employing polyurethane material-structure, the top of elastic rubbery body 5 arranges the floating projection 6 with the groove match on powder forming part, and the upper end of the projection 6 that floats protrudes from the front end face of bottom punch 3.As a kind of embodiment, rubber pattern is set in the front end of bottom punch 3, rubber pattern is arranged cavity 4, like this can one-object-many-purposes, improve the flexibility of mould.In order to realize better compressing effect, can former 2 be set to floating type.
The utility model is not limited to above-described embodiment, upper punch, the embodiment of other malformation that equivalence is replaced in the middle of the known technology that the contour structures of former and bottom punch and connected mode each other also can adopt those skilled in the art to obtain or prior art, as long as belong to technical conceive of the present utility model or spirit, the reeded drip molding of tool is formed by arranging the auxiliary compacting of floating projection, and absorb a part of pressure by arranging elastic rubbery body in the bottom of floating projection, with the stress concentration of the reducing effect of appropriateness at groove position, thus acquisition well-distributed pressure, the embodiment realized for the purpose of powder density uniformity all drops in protection domain of the present utility model.
Claims (5)
1. the pressure setting of the reeded powder forming part of tool, it is characterized in that: comprise upper punch (1), former (2) and bottom punch (3), the rear end of bottom punch (3) is fixed on table top, the front end of bottom punch (3) is inserted into the bottom of former (2), the top being inserted into former (2) moving up and down, front end of upper punch (1), the front end face of bottom punch (3) is arranged cavity (4), cavity (4) bottom arranges elastic rubbery body (5), the top of elastic rubbery body (5) arranges the floating projection (6) with the groove match on powder forming part, the upper end of floating projection (6) protrudes from the front end face of bottom punch (3).
2. the pressure setting of the reeded powder forming part of tool according to claim 1, it is characterized in that: the top of former (2) arranges guide cylinder (7), the front end of upper punch (1) can move up and down along the inwall of guide cylinder (7).
3. the pressure setting of the reeded powder forming part of tool according to claim 1, is characterized in that: former (2) adopts floating type compressing structure.
4. the pressure setting of the reeded powder forming part of tool according to claim 1, is characterized in that: the front end of bottom punch (3) arranges rubber pattern, rubber pattern is arranged cavity (4).
5. the pressure setting of the reeded powder forming part of tool according to claim 1, is characterized in that: elastic rubbery body (5) is polyurethane material-structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520627586.4U CN205020801U (en) | 2015-08-19 | 2015-08-19 | Suppression device of powder forming spare with recess |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520627586.4U CN205020801U (en) | 2015-08-19 | 2015-08-19 | Suppression device of powder forming spare with recess |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205020801U true CN205020801U (en) | 2016-02-10 |
Family
ID=55253368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520627586.4U Expired - Fee Related CN205020801U (en) | 2015-08-19 | 2015-08-19 | Suppression device of powder forming spare with recess |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205020801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723360A (en) * | 2018-06-22 | 2018-11-02 | 江门杰富意磁性材有限公司 | A kind of the molding press device and method of mesh shaped magnetic core |
-
2015
- 2015-08-19 CN CN201520627586.4U patent/CN205020801U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723360A (en) * | 2018-06-22 | 2018-11-02 | 江门杰富意磁性材有限公司 | A kind of the molding press device and method of mesh shaped magnetic core |
| CN108723360B (en) * | 2018-06-22 | 2024-03-26 | 江门杰富意磁性材有限公司 | Forming and pressing equipment and method for mesh-shaped magnetic cores |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20170819 |