CN203316613U - Stamping die capable of improving lapping-in rate of large covering part - Google Patents
Stamping die capable of improving lapping-in rate of large covering part Download PDFInfo
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- CN203316613U CN203316613U CN2013202616127U CN201320261612U CN203316613U CN 203316613 U CN203316613 U CN 203316613U CN 2013202616127 U CN2013202616127 U CN 2013202616127U CN 201320261612 U CN201320261612 U CN 201320261612U CN 203316613 U CN203316613 U CN 203316613U
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- patrix
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- covering part
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Abstract
The utility model discloses a stamping die capable of improving the lapping-in rate of a large covering part. According to the stamping die capable of improving the lapping-in rate of the large covering part, the cross section of the periphery of an upper die is an arched curve which is oblique downwards from outside to inside, a middle molded surface is prevented from being deformed by means of arched surface compensation which is carried out on the periphery of the upper die, therefore, the primary molded surface lapping-in rate is effectively increased, and the production cycle is shortened.
Description
Technical field
The utility model belongs to the automobile die field, relates in particular to a kind of diel that improves large-scale covering lapping-in rate.
Background technology
Automobile panel generally has higher quality requirement, needs accordingly to improve the Mold Making adjustment accuracy, guarantees higher mould lapping-in rate, as shown in Figure 2.For the lapping-in male former, modal a kind of situation is: peripheral one week of patrix and counterdie laminating are very tight, and there is larger space in the profile of middle part.Will have a strong impact on like this die face lapping-in rate.The mould middle part is the working face of mould, directly related with the quality of product.
In order to increase the lapping-in rate of osculant face position, just need to be by the patrix whole height toward descending, current process is the die face to the polishing of mould surrounding by sander, even yet even in the middle of mould, profile place amount in debt is very little, the workload of pincers worker also can be very large, extended the project cycle.Although this technique can be dealt with problems to a certain extent, but it has inevitably damaged the profile of patrix, after pincers worker manual grinding zone is large with the polishing amount, hollow appears in die face usually, causing can't be smooth-going by other technique finishing, especially the face quality of exterior panel is caused to harmful effect.
The immediate cause that produces this problem is, mould middle part profile has produced distortion to a certain degree, makes male former tool gap be greater than a material of plate thick.Basic reason is, forcing press and to be arranged on transmission between the patrix on top shoe be that drive link by being distributed in four jiaos of top shoes carries out the conduction of power, as shown in Figure 3, the peripheral stressed moment of flexure produced in middle part, cause middle part profile distortion, profile after making to draw has been greater than the height of theoretical profile, and it is thick that die clearance is greater than 1 material.Therefore when arriving mould, the strength at forcing press kills a shaping stage, the mould outside stressed higher than the mould middle part.When the pressing machine table-board insufficient rigidity, in this moment of flexure formed by pressure bad student's reaction force, make mould can produce in centre upwards protuberance distortion, as shown in Figure 4, and the absolute value maximum of profile middle part Z-direction displacement, direction is upwards.On-the-spot lapping-in rate progressively reduces from outside to inside, and the lapping-in rate of middle darker regions is minimum.Especially in the large-scale covering mould, because mould structure is larger, integral rigidity is lower, can in distortion, produce necessarily degree of disturbing.In addition, the concave shape of patrix lacks again the support structure of mould periphery, lower to the resistance of distortion, owing to being out of shape the principle that always the Zai Ruo district occurs at first, makes the middle part problem on deformation more outstanding.Mould osculant facial disfigurement is more peripheral serious, and on-the-spot lapping-in rate is minimum.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of the solve problem of the self-deformation of large-scale covering mould in punching press, the diel that improves large-scale covering lapping-in rate.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of diel that improves large-scale covering lapping-in rate, comprise upper die and lower die, described upper die and lower die are connected with lathe respectively, four drive links of described lathe are arranged in respectively on four jiaos of patrix, the peripheral cross sectional shape of described patrix is the curve that radian arranged downward-sloping to inside by outside, and the peripheral cross sectional shape of described counterdie and patrix are suitable.
Described counterdie is provided with blank holder, and described blank holder and counterdie are flexibly connected.
Described upper die and lower die are connected with the lathe bolt respectively.
The utility model has the advantage of, new die face has compensated the deflection in the middle of mould, and this design makes the patrix inner profile contact counterdie with periphery simultaneously, and middle part has obtained supporting preferably, has avoided the stress of medial concavity to concentrate; Also solved the excessive situation of peripheral pressurized, and substituted the pincers worker manual grinding, die face is neatly smooth-going, and plate face quality is guaranteed simultaneously.Effectively improve first profile lapping-in rate, shortened the production cycle.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation that improves the diel of large-scale covering lapping-in rate of the utility model;
Fig. 2 is prior art covering drawing mold structure schematic diagram;
Fig. 3 is lathe upward pressure source distribution structural representation;
Fig. 4 is the stressed intermediate deformation structural representation of prior art mould;
Mark in above-mentioned figure is: 1, lathe, 2, counterdie, 3, blank holder, 4, patrix, 5, drive link, 6, the die face after compensation, 7, original die face, 8, do the sky compensatory zone, 9, theoretical die face.
The specific embodiment
Fig. 1 is a kind of structural representation that improves the diel of large-scale covering lapping-in rate of the utility model, comprise patrix 4 and counterdie 2, patrix 4 is connected with lathe 1 respectively with counterdie 2, four drive links 5 of lathe 1 are arranged in respectively on four jiaos of patrix 4, the peripheral cross sectional shape of patrix 4 is the curve that radian arranged downward-sloping to inside by outside, and the peripheral cross sectional shape of counterdie 2 and patrix 4 are suitable.
Counterdie 2 is provided with blank holder 3, and blank holder 3 is flexibly connected with counterdie 2.Patrix 4 is connected with lathe 1 bolt respectively with counterdie 2.
After adopting such structure, new die face has compensated the deflection in the middle of mould, and this design makes patrix 4 inner profiles contact counterdie 2 with periphery simultaneously, and middle part has obtained supporting preferably, has avoided the stress of medial concavity to concentrate; Also solved the excessive situation of peripheral pressurized, and substituted the pincers worker manual grinding, die face is neatly smooth-going, and plate face quality is guaranteed simultaneously.Effectively improve first profile lapping-in rate, shortened the production cycle.
The above is exemplarily described the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (3)
1. a diel that improves large-scale covering lapping-in rate, comprise patrix (4) and counterdie (2), described patrix (4) is connected with lathe (1) respectively with counterdie (2), four drive links (5) of described lathe (1) are arranged in respectively on four jiaos of patrix (4), it is characterized in that, the peripheral cross sectional shape of described patrix (4) is the curve that radian arranged downward-sloping to inside by outside, and the peripheral cross sectional shape of described counterdie (2) and patrix (4) are suitable.
2. the diel of raising large-scale covering lapping-in rate as claimed in claim 1, is characterized in that, described counterdie (2) is provided with blank holder (3), and described blank holder (3) is flexibly connected with counterdie (2).
3. the diel of raising large-scale covering lapping-in rate as claimed in claim 1 or 2, is characterized in that, described patrix (4) is connected with lathe (1) bolt respectively with counterdie (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202616127U CN203316613U (en) | 2013-05-14 | 2013-05-14 | Stamping die capable of improving lapping-in rate of large covering part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202616127U CN203316613U (en) | 2013-05-14 | 2013-05-14 | Stamping die capable of improving lapping-in rate of large covering part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203316613U true CN203316613U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202616127U Expired - Fee Related CN203316613U (en) | 2013-05-14 | 2013-05-14 | Stamping die capable of improving lapping-in rate of large covering part |
Country Status (1)
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| CN (1) | CN203316613U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458145A (en) * | 2015-12-30 | 2016-04-06 | 无锡透平叶片有限公司 | Centrosymmetric titanium alloy structural member mold compensation structure and method |
| CN111331044A (en) * | 2020-01-19 | 2020-06-26 | 广汽菲亚特克莱斯勒汽车有限公司 | Method for researching and matching drawing die of large automobile stamping part |
| CN111974884A (en) * | 2020-08-04 | 2020-11-24 | 格致汽车股份有限公司 | Method for improving R angle lapping rate of automobile panel stamping die |
-
2013
- 2013-05-14 CN CN2013202616127U patent/CN203316613U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458145A (en) * | 2015-12-30 | 2016-04-06 | 无锡透平叶片有限公司 | Centrosymmetric titanium alloy structural member mold compensation structure and method |
| CN111331044A (en) * | 2020-01-19 | 2020-06-26 | 广汽菲亚特克莱斯勒汽车有限公司 | Method for researching and matching drawing die of large automobile stamping part |
| CN111974884A (en) * | 2020-08-04 | 2020-11-24 | 格致汽车股份有限公司 | Method for improving R angle lapping rate of automobile panel stamping die |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 22 North Road Patentee after: RAYHOO MOTOR DIES CO.,LTD. Address before: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 22 North Road Patentee before: RAYHOO MOTOR DIES Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |