CN203917582U - A kind of automobile metal plate work cold stamping drift - Google Patents
A kind of automobile metal plate work cold stamping drift Download PDFInfo
- Publication number
- CN203917582U CN203917582U CN201420348416.8U CN201420348416U CN203917582U CN 203917582 U CN203917582 U CN 203917582U CN 201420348416 U CN201420348416 U CN 201420348416U CN 203917582 U CN203917582 U CN 203917582U
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- hole flanging
- drift
- tapered guide
- metal plate
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Abstract
The utility model relates to a kind of automobile metal plate work cold stamping drift, comprises cylindrical drift body, is provided with successively hole flanging section, First Transition linkage section, punching positioning section, the second transition linkage section and tapered guide section in one end of described drift body; Described tapered guide section is round table-like structure, and the taper end of the frustum cone structure of described tapered guide section has arc-shaped transition chamfering, and described punching positioning section and hole flanging section are cylindrical structure, and the external diameter of tapered guide section, punching positioning section and hole flanging section increases successively.The hole flanging punch that the utility model adopts new special process design and special surface to process, can effectively improve the quality problems such as hole flanging inside surface roughness, dimensional accuracy, can be brought up to 200,000 jig frequencies the service life of hole flanging punch, reduce the expense of mold repair maintenance simultaneously.
Description
Technical field
The utility model relates to a kind of automobile metal plate work cold stamping drift, belongs to automobile metal plate work Cold pressing die field.
Background technology
The common flange hole technology drift that the punching of current domestic automobile metal plate work of the same trade adopts, after hole flanging, there will be rough inner surface, the poor dimensional precision in hole, the limit of hole flanging is not contour and hole flanging punch short problem in service life, conventionally drift uses 5,000 to 10,000 jig frequencies just need to scrap and more renews drift, not only increased the percent defective of product, but also increased the maintenance expense of drift, the waste enterprise resources of production.
Utility model content
Technical problem to be solved in the utility model is, overcome the shortcoming of prior art, a kind of automobile metal plate work cold stamping drift is provided, solved that the inside surface roughness dimensional accuracy poor, aperture that punching press hole flanging occurs is unstable, the height on the limit of the hole flanging surrounding problems such as also service life not contour and hole flanging punch is short, reach and improve product hole flanging quality and the target that extends the minimizing maintenance expense in drift service life.
In order to solve above technical problem, the utility model provides a kind of automobile metal plate work cold stamping drift, comprise cylindrical drift body, in one end of described drift body, be provided with successively hole flanging section, First Transition linkage section, punching positioning section, the second transition linkage section and tapered guide section; Described tapered guide section is round table-like structure, and the taper end of the frustum cone structure of described tapered guide section has arc-shaped transition chamfering, and described punching positioning section and hole flanging section are cylindrical structure, and the external diameter of tapered guide section, punching positioning section and hole flanging section increases successively.
Aforesaid automobile metal plate work cold stamping drift, the cone angle of described tapered guide section is 30 °～45 °, and the tapered guide section of drift front end is carried out preliminary correcting location to product, and angle too small causes drift front end to be easily out of shape, the excessive location for drift of angle is difficult for, and increases the difficulty of Primary Location.
Aforesaid automobile metal plate work cold stamping drift, the diameter of described hole flanging section is not more than the diameter of drift body.
Aforesaid automobile metal plate work cold stamping drift, described First Transition linkage section and the second transition linkage section are arc-shaped transition chamfering, the resistance when reducing punching press, the smoothness on surface while improving hole flanging.
Further, aforesaid automobile metal plate work cold stamping drift, the surface of described hole flanging section, First Transition linkage section, punching positioning section, the second transition linkage section and tapered guide section all has the metallic carbide layer after TD processes, and its surface roughness is 0.16.
The utility model is done TD coating process by the surface of drift integral body and is processed, make drift matrix hardness reach 60HRC, face coat hardness reaches 2500HV, and punch head surface is smooth like minute surface simultaneously, surface roughness is 0.16, guarantees the roughness of the inner surface of hole flanging metapore.Because the punch head surface hardness after surface treatment is high and smooth, can effectively prevent that punch head surface, by plucking, reduces the maintain and replace of drift in hole flanging process.
The beneficial effects of the utility model are:
The hole flanging punch that the utility model adopts new special process design and special surface to process, can effectively improve the quality problems such as hole flanging inside surface roughness, dimensional accuracy, can be brought up to 200,000 jig frequencies the service life of hole flanging punch, reduce the expense of mold repair maintenance simultaneously.
Accompanying drawing explanation
Fig. 1 is concrete structure schematic diagram of the present utility model.
The state diagram of position one during Fig. 2 embodiment 1 punching press.
The state diagram of position two during Fig. 3 embodiment 1 punching press.
The state diagram of position three during Fig. 4 embodiment 1 punching press.
The specific embodiment
embodiment 1
A kind of automobile metal plate work cold stamping drift that the present embodiment provides, structure as shown in Figure 1, comprise cylindrical drift body, in one end of drift body 5, be provided with successively hole flanging section 1, First Transition linkage section 2, punching positioning section 3, the second transition linkage section 2 ' and tapered guide section 4, the cone angle of tapered guide section is 34 °, and First Transition linkage section and the second transition linkage section are arc-shaped transition chamfering; Tapered guide section is round table-like structure, and the taper end of the frustum cone structure of tapered guide section has arc-shaped transition chamfering, and punching positioning section and hole flanging section are cylindrical structure, and the external diameter of tapered guide section, punching positioning section and hole flanging section increases successively; The surface of hole flanging section, First Transition linkage section, punching positioning section, the second transition linkage section and tapered guide section all has the metallic carbide layer after TD processes, and its surface roughness is 0.16.
Front end taper boot segment is made tapered guide drift and is accurately located; The size of punching positioning section make with product hole flanging place on the bottom outlet gone out of operation measure-alike, accurate positioning product; Hole flanging section size is accomplished the required hole flanging size of product drawing, guarantees that hole flanging size is qualified; First Transition linkage section and the second transition linkage section connect for the transition between each section, all adopt the smooth connection of circular arc.The surface of drift integral body is done TD coating process and is processed, and makes drift matrix hardness reach 60HRC, and face coat hardness reaches 2500HV, and punch head surface is smooth like minute surface simultaneously, guarantees the roughness of the inner surface of hole flanging metapore.Because the punch head surface hardness after surface treatment is high and smooth, can effectively prevent that punch head surface, by plucking, reduces the maintain and replace of drift in hole flanging process.In addition. on punch structure size design and surface-treated basis, coordinate again the size of making hole flanging die, rationally control the gap of hole flanging punch and die, the gap that makes hole flanging punch and die is sheet metal thickness 70 percent, guarantees that the limit after hole flanging can be perpendicular to pressing sheet material.
In position a period of time of Fig. 2, hole flanging punch is about to basic product, and the tapering part of drift front end carries out preliminary correcting location to product.When drift arrives the position two of Fig. 3, the punching positioning section of drift front end partly enters in the bottom outlet of operation punching before product, accurate correcting product, and the surrounding that prevents from placing because of product the hole flanging metapore causing not in place is not contour; When drift arrives the position three of Fig. 4, complete hole flanging, drift exits die with mould motion, takes out product, completes punching course.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (5)
1. an automobile metal plate work cold stamping drift, comprises cylindrical drift body, it is characterized in that: in one end of described drift body, be provided with successively hole flanging section, First Transition linkage section, punching positioning section, the second transition linkage section and tapered guide section; Described tapered guide section is round table-like structure, and the taper end of the frustum cone structure of described tapered guide section has arc-shaped transition chamfering, and described punching positioning section and hole flanging section are cylindrical structure, and the external diameter of tapered guide section, punching positioning section and hole flanging section increases successively.
2. according to the automobile metal plate work cold stamping drift described in claim 1, it is characterized in that: the cone angle of described tapered guide section is 30 °～45 °.
3. according to the automobile metal plate work cold stamping drift described in claim 1, it is characterized in that: described hole flanging section diameter is not more than the diameter of drift body.
4. according to the automobile metal plate work cold stamping drift described in claim 1, it is characterized in that: described First Transition linkage section and the second transition linkage section are arc-shaped transition chamfering.
5. according to the automobile metal plate work cold stamping drift described in claim 1, it is characterized in that: the surface of described hole flanging section, First Transition linkage section, punching positioning section, the second transition linkage section and tapered guide section all has the metallic carbide layer after TD processes, and its surface roughness is 0.16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348416.8U CN203917582U (en) | 2014-06-26 | 2014-06-26 | A kind of automobile metal plate work cold stamping drift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348416.8U CN203917582U (en) | 2014-06-26 | 2014-06-26 | A kind of automobile metal plate work cold stamping drift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203917582U true CN203917582U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420348416.8U Expired - Fee Related CN203917582U (en) | 2014-06-26 | 2014-06-26 | A kind of automobile metal plate work cold stamping drift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203917582U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028621A (en) * | 2014-06-26 | 2014-09-10 | 南京惠德机械有限公司 | Cold stamping punch for automotive stamping parts |
| CN108435891A (en) * | 2018-04-16 | 2018-08-24 | 长沙格力暖通制冷设备有限公司 | Pipe hole punch |
| CN108714646A (en) * | 2018-07-05 | 2018-10-30 | 苏州广型模具有限公司 | The mold and punching head of high life |
| CN109127909A (en) * | 2018-08-31 | 2019-01-04 | 中国航发南方工业有限公司 | Hole extruding formed punch, formed punch design method and anti-deforming structure |
| CN114486993A (en) * | 2021-12-28 | 2022-05-13 | 武钢集团昆明钢铁股份有限公司 | Method for detecting assimilation temperature of iron ore powder |
-
2014
- 2014-06-26 CN CN201420348416.8U patent/CN203917582U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028621A (en) * | 2014-06-26 | 2014-09-10 | 南京惠德机械有限公司 | Cold stamping punch for automotive stamping parts |
| CN108435891A (en) * | 2018-04-16 | 2018-08-24 | 长沙格力暖通制冷设备有限公司 | Pipe hole punch |
| CN108714646A (en) * | 2018-07-05 | 2018-10-30 | 苏州广型模具有限公司 | The mold and punching head of high life |
| CN109127909A (en) * | 2018-08-31 | 2019-01-04 | 中国航发南方工业有限公司 | Hole extruding formed punch, formed punch design method and anti-deforming structure |
| CN109127909B (en) * | 2018-08-31 | 2020-05-19 | 中国航发南方工业有限公司 | Thinned hole flanging punch and punch design method |
| CN114486993A (en) * | 2021-12-28 | 2022-05-13 | 武钢集团昆明钢铁股份有限公司 | Method for detecting assimilation temperature of iron ore powder |
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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: 20141105 Termination date: 20160626 |