CN205147074U - A novel special terrace die for bearing stamp outer lane - Google Patents
A novel special terrace die for bearing stamp outer lane Download PDFInfo
- Publication number
- CN205147074U CN205147074U CN201520895089.2U CN201520895089U CN205147074U CN 205147074 U CN205147074 U CN 205147074U CN 201520895089 U CN201520895089 U CN 201520895089U CN 205147074 U CN205147074 U CN 205147074U
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- CN
- China
- Prior art keywords
- punch
- terrace die
- air discharge
- discharge duct
- die
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- Withdrawn - After Issue
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Abstract
The utility model discloses a novel special terrace die for bearing stamp outer lane, die shank, terrace die ring, punch case and the terrace die arranged in proper order including top -down, the lower extreme of die shank is equipped with fixed cavity, the upper end of terrace die is equipped with fixed lug to be made the terrace die forms a step face, the external diameter of fixed lug is less than fixed cavity, the terrace die ring sum the punch case all overlaps to be established on the fixed lug, the external diameter of terrace die ring is greater than the punch case, the external diameter of punch case is greater than the terrace die, the die shank is fixed on the terrace die be equipped with the air discharge duct on the step face, the air discharge duct along with the radial parallel direction of terrace die is arranged and is extended to the outer circumference of terrace die, the air discharge duct with fixed lug keeps tangent, be equipped with the exhaust hole of running through on the outer wall of fixed cavity, exhaust hole intercommunication extremely the air discharge duct. The utility model provides a terrace die can improve the quality of bearing stamp outer lane product.
Description
Technical field
The utility model relates to die apparatus technical field, particularly a kind of new exclusive punch for impulse bearing outer ring.
Background technology
The drawn cup punch that existing technique uses, shown in Figure 1, comprise the die shank 1 arranged successively from top to bottom, punch ring 2, punch case 3 and punch 4, the lower end of die shank 1 is provided with fixing cavity 11, the upper end of punch 4 is provided with fixing projection 41 makes punch 4 form a step surface, the external diameter of fixing projection 41 is less than fixing cavity 12, punch ring 2 and punch case 3 are all set on fixing projection, the external diameter of punch ring 2 is greater than punch case 3 thus the step of formation control trimming length, the external diameter of punch case 3 is greater than punch 4 thus another step of formation control raceway height, die shank 1 is fixed on punch 4, the plane of punch ring 2 and punch case 3 grinds wide 2mm, the air drain 6 of dark 0.05mm.
Although this structure can get rid of the portion gas between mould and product, there is following drawback: (one) shortens raceway effective length, reduce needle roller working region, serious meeting directly affects the service life of bearing; (2) in forming process, the air drain of the wide 2mm in pad plane, dark 0.05mm can cause material stacking at air drain place, forms a small boss, discontinuity when easily causing flange, generation micro-crack; (3) shorten the gap between flange step and raceway, affect flange, easily produce flange cracking.(4) in drawing process, owing to being subject to the gases affect between mould and product, product wall thickness can produce deviation, formation wall unevenness is even, single radial thickness deviation is caused to be greater than product requirement, for heavy wall product, the even phenomenon of wall unevenness is particularly serious, and measured value is 0.05mm to the maximum.
Utility model content
The utility model object is to provide a kind of new exclusive punch for impulse bearing outer ring, and it can improve the quality of impulse bearing outer ring product.
Based on the problems referred to above, the technical scheme that the utility model provides is:
For the new exclusive punch of impulse bearing outer ring, comprise the die shank arranged successively from top to bottom, punch ring, punch case and punch, the lower end of described die shank is provided with fixing cavity, the upper end of described punch is provided with fixing projection makes described punch form a step surface, the external diameter of described fixing projection is less than described fixing cavity, described punch ring and described punch case are all set on described fixing projection, the external diameter of described punch ring is greater than described punch case, the external diameter of described punch case is greater than described punch, described die shank is fixed on described punch, described step surface is provided with air discharge duct, described air discharge duct is arranged along the direction radial parallel with described punch and extends to the excircle of described punch, described air discharge duct and described fixing projection keep tangent, the outer wall of described fixing cavity is provided with the steam vent run through, described steam vent is communicated to described air discharge duct.
Further, the width of described air discharge duct is 0.5mm, and the degree of depth is 0.05mm.
Further, described die shank is fixed on described punch through described fixing cavity and described fixing projection by bolt.
Compared with prior art, the utility model has the advantages that:
1. adopt the technical solution of the utility model, gas flow when can make product shaping and between mould is clear and coherent smooth, product raceway step and flange step place is made to change obviously, be close in 90 ° of angles, raceway step can be met full, length meets the requirements, and raceway step and flange step can be made again to have enough gaps, because the factor that raceway step is too high causes cracking when avoiding flange;
2. adopt the technical solution of the utility model, when being stretched to raceway step place, mould and product gas are got rid of by air discharge duct, inner-wall material no longer flows after being accumulated to punch step, product continues descending stretching with punch, wall thickness is by thick thinning, and product wall thickness is not owing to being now subject to the impact of gas, and wall thickness variation can be down to minimum.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the new exclusive punch embodiment of impulse bearing outer ring in prior art;
Fig. 2 is the structural representation of the utility model for the new exclusive punch embodiment of impulse bearing outer ring;
Fig. 3 is the partial enlarged drawing at I place in Fig. 2;
Fig. 4 is the structural representation of the utility model embodiment convex mould;
Fig. 5 is the structural representation in another direction of the utility model embodiment convex mould;
Wherein:
1, die shank; 11, fixing cavity; 12, steam vent;
2, punch ring;
3, punch case;
4, punch; 41, fixing projection; 42, step surface; 43, air discharge duct;
5, bolt;
6, air drain.
Detailed description of the invention
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiments are not limited to for illustration of the utility model limit scope of the present utility model.The implementation condition adopted in embodiment can do further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in normal experiment.
See Fig. 2-5, for embodiment of the present utility model, a kind of new exclusive punch for impulse bearing outer ring is provided, it comprises the die shank 1 arranged successively from top to bottom, punch ring 2, punch case 3 and punch 4, the lower end of die shank 1 is provided with fixing cavity 11, the upper end of punch 4 is provided with fixing projection 41 makes punch 4 form a step surface 42, the external diameter of fixing projection 41 is less than fixing cavity 11, punch ring 2 and punch case 3 are all set on fixing projection 41, the external diameter of punch ring 2 is greater than punch case 3 thus the step of formation control trimming length, the external diameter of punch case 3 is greater than punch 4 thus another step of formation control raceway height, die shank 1 is fixed on punch 4, in order to discharge the gas in punching course between mould and product, improve the quality of products, improvements of the present utility model are: on the step surface of punch 4, arrange air discharge duct 43, this air discharge duct 43 is arranged along the direction radial parallel with punch 4 and is extended to the excircle of punch 4, air discharge duct 43 and fixing projection 41 keep tangent, and on the outer wall of fixing cavity 11, be provided with the steam vent 12 run through, this steam vent 12 is communicated to air discharge duct 43, the width of preferred air discharge duct 43 is 0.5mm, the degree of depth is 0.05mm, when being stretched to raceway step place, mould and product gas are discharged by air discharge duct 43 and steam vent 12, inner-wall material no longer flows after being accumulated to punch step, make raceway step full and uniform wall thickness.
In this example, die shank 1 is fixed on punch 4 through fixing cavity 12 and fixing projection 41 by bolt 5, adopts this fixed form can improve the service life of punch.
Above-mentioned example, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to the utility model Spirit Essence or modification, all should be encompassed within protection domain of the present utility model.
Claims (3)
1. for the new exclusive punch of impulse bearing outer ring, comprise the die shank (1) arranged successively from top to bottom, punch ring (2), punch case (3) and punch (4), the lower end of described die shank (1) is provided with fixing cavity (11), the upper end of described punch (4) is provided with fixing projection (41) makes described punch (4) form a step surface (42), the external diameter of described fixing projection (41) is less than described fixing cavity (11), described punch ring (2) and described punch case (3) are all set on described fixing projection (41), the external diameter of described punch ring (2) is greater than described punch case (3), the external diameter of described punch case (3) is greater than described punch (4), described die shank (1) is fixed on described punch (4), it is characterized in that: on described step surface (42), be provided with air discharge duct (43), described air discharge duct (43) is arranged along the direction radial parallel with described punch (4) and extends to the excircle of described punch (4), described air discharge duct (43) and described fixing projection (41) keep tangent, the outer wall of described fixing cavity (11) is provided with the steam vent (12) run through, described steam vent (12) is communicated to described air discharge duct (43).
2. the new exclusive punch for impulse bearing outer ring according to claim 1, is characterized in that: the width of described air discharge duct (43) is 0.5mm, and the degree of depth is 0.05mm.
3. the new exclusive punch for impulse bearing outer ring according to claim 1, is characterized in that: described die shank (1) is fixed on described punch (4) through described fixing cavity (11) and described fixing projection (41) by bolt (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895089.2U CN205147074U (en) | 2015-11-11 | 2015-11-11 | A novel special terrace die for bearing stamp outer lane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895089.2U CN205147074U (en) | 2015-11-11 | 2015-11-11 | A novel special terrace die for bearing stamp outer lane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205147074U true CN205147074U (en) | 2016-04-13 |
Family
ID=55682815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520895089.2U Withdrawn - After Issue CN205147074U (en) | 2015-11-11 | 2015-11-11 | A novel special terrace die for bearing stamp outer lane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205147074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215194A (en) * | 2015-11-11 | 2016-01-06 | 苏州轴承厂股份有限公司 | For the new exclusive punch of impulse bearing outer ring |
-
2015
- 2015-11-11 CN CN201520895089.2U patent/CN205147074U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215194A (en) * | 2015-11-11 | 2016-01-06 | 苏州轴承厂股份有限公司 | For the new exclusive punch of impulse bearing outer ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20170329 |
|
| AV01 | Patent right actively abandoned |