CN204867269U - Cold heading machine stamping die for roller bearing - Google Patents
Cold heading machine stamping die for roller bearing Download PDFInfo
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- CN204867269U CN204867269U CN201520675235.0U CN201520675235U CN204867269U CN 204867269 U CN204867269 U CN 204867269U CN 201520675235 U CN201520675235 U CN 201520675235U CN 204867269 U CN204867269 U CN 204867269U
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Abstract
Cold heading machine stamping die for roller bearing, including outer die sleeve, from last to being equipped with well mould down in proper order in the inner chamber of die sleeve outside, die block seat and heelpiece, the center on die block seat upper portion is equipped with a cylindrical groove, cylindrical inslot inlays and is equipped with into the core, the center of well mould is equipped with the work die cavity, become the core, the center of die block seat and heelpiece is equipped with the release hole of lining up, become the up end of core and the upper end facial features parallel and level of die block seat, the up end of die block seat and the lower extreme face partial contact of well mould, so that terminal surface under the well mould, die block seat up end encloses the regional toroidal cavity of formation with outer die sleeve internal face three, be equipped with the through -hole in the outer die sleeve, this through -hole has a perfect understanding the outer wall and the inner wall of outer die sleeve, and communicate with toroidal cavity. The utility model discloses in, the gas that produces when the punching press can be followed the through -hole and flowed, produces the air cavity when avoiding the punching press between well mould and die block seat, and then causes the problem that is difficult to reach the roughness requirement between well mould and the die block seat.
Description
Technical field
The utility model relates to cold upsetting die of car, is specifically related to the diel of a kind of roller bearing cold headers.
Background technology
Cold headers make roller or other products with cold-heading method, is widely used in machined manufacturing industry.Roller bearing is as the one of bearing, be widely used in the fields such as various big machinery, vehicle, roller in roller bearing utilizes pressing to produce in the prior art, the shape and size of mould are mated with roller to be processed, then use drift and die that material is squeezed into predetermined shape.In prior art, the stability of workpiece and mould during in order to keep machined, prevent cold headers from producing shearing force when carrying out press work, and then cause the damage of mould and product, require that the lower surface of middle mould of mould and the upper surface of counterdie have certain flatness, and in actual machined production, the gas build produced when punching press, between middle mould lower surface and counterdie upper surface, causes between middle mould and counterdie and is difficult to reach flatness requirement.
Utility model content
Technical problem to be solved in the utility model overcomes existing roller cold upsetting die when punching press, easily produces the problem of air cavity, provide the diel of a kind of roller bearing cold headers between middle mould lower surface and counterdie upper surface.
The utility model for the adopted technical scheme that solves the problem is: the diel of roller bearing cold headers, comprise a ringwise outer die casing, mould in being provided with successively from top to bottom in the inner chamber of outer die casing, bed die seat and heelpiece, the center on bed die seat top is provided with a cylindrical groove, forming core is embedded with in cylindrical groove, the center of middle mould is provided with work die cavity, forming core, the center of bed die seat and heelpiece is provided with through introduction hole, the upper surface of forming core is mutually concordant with the upper surface of bed die seat, the upper surface of bed die seat and the lower surface part contact of middle mould, to make middle mould lower surface, bed die seat upper surface and outer die casing internal face three institute region form toroidal cavity, the through hole for guiding this toroidal cavity internal gas to flow out is provided with in outer die casing, the outer wall of the through outer die casing of this through hole and inwall, and be communicated with described toroidal cavity.
Wherein, the middle part of middle mould outside wall surface is provided with cannelure, the taper type that the internal face of middle mould reduces gradually in from top to bottom external diameter, and its tapering is 2 °.
Further, the double-deck cover die that middle mould is made up of internal mold and the external mold of nested setting, described cannelure is located in the outside wall surface of external mold.
In the utility model, the upper surface of forming core contacts completely with the lower surface of internal mold, and now, the lower surface of internal mold does not contact with the upper surface of bed die seat.
Or, the upper surface of forming core and the lower surface part contact of internal mold, the lower surface of internal mold also with the upper surface part contact of bed die seat.Adopt above-mentioned two kinds of set-up modes, the contact area of mould and bed die seat in all can reducing, compared with prior art, reduce the requirement of the flatness of centering mould and bed die seat contact surface.
In the utility model, the position of forming core top correspondence work die cavity is provided with groove.
In the utility model, the top of outer die casing is provided with the chamfering in 30 °.
Beneficial effect: 1, in the utility model, the through hole be communicated with toroidal cavity is provided with in outer die casing, the gas produced when punching press can flow out from through hole, avoid between middle mould and bed die seat, producing air cavity during punching press, so cause between middle mould and bed die seat be difficult to reach flatness requirement, problem that die assembly is difficult to reach required precision.
2, in this mould, the contact surface of middle mould and outer die casing is interference fit, and middle mould stress point concentrates on its upper and lower two ends, stressed more weak in the middle part of it, the utility model arranges cannelure at the middle part of middle mould outside wall surface, in not affecting mould intensity basis on, decrease the contact area of middle mould and outer die casing, be convenient to elastic conjunction.
3, in the utility model, the upper surface of bed die seat and the lower surface part contact of middle mould, namely the top of bed die seat is in the diminishing taper type of external diameter from the bottom to top, thus make bed die seat upper surface have the region do not contacted with middle mould of an annular, decreasing the contact area of bed die seat upper surface and middle mould lower surface, avoiding in traditional moulds because requiring that middle mould and bed die seat required contact surface of fitting completely reaches the problem of the flatness of high requirement.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the schematic diagram of embodiment 1;
Fig. 3 is the schematic diagram of embodiment 2.
Reference numeral: 1, outer die casing, 2, middle mould, 20, internal mold, 21, external mold, 3, bed die seat, 4, heelpiece, 5, forming core, 6, work die cavity, 7, introduction hole, 8, toroidal cavity, 9, through hole, 10, cannelure, 11, groove.
Detailed description of the invention
Below in conjunction with specific embodiment, roller bearing cold headers of the present utility model diel is described further, to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
Roller bearing cold headers diel, as shown in Figure 1, comprise a ringwise outer die casing 1, mould 2 in being provided with successively from top to bottom in the inner chamber of outer die casing 1, bed die seat 3 and heelpiece 4, the center on bed die seat 3 top is provided with a cylindrical groove, forming core 5 is embedded with in cylindrical groove, the center of middle mould 2 is provided with work die cavity 6, forming core 5, the center of bed die seat 3 and heelpiece 4 is provided with through introduction hole 7, the upper surface of forming core 5 is mutually concordant with the upper surface of bed die seat 3, the upper surface of bed die seat 3 and the lower surface part contact of middle mould 2, to make middle mould 2 lower surface, bed die seat 3 upper surface and outer die casing 1 internal face three institute region form toroidal cavity 8, the through hole 9 for guiding this toroidal cavity 8 internal gas to flow out is provided with in outer die casing 1, the outer wall of the through outer die casing 1 of this through hole 9 and inwall, and be communicated with described toroidal cavity 8, the middle part of middle mould 2 outside wall surface is provided with cannelure 10, the taper type that the internal face of middle mould 2 reduces gradually in from top to bottom external diameter, its tapering is 2 °.
Embodiment 1
Roller bearing cold headers diel, as shown in Figure 2, comprise an outer die casing 1, the top of outer die casing 1 is provided with the chamfering in 30 °, outer die casing 1 is provided with middle mould 2, bed die seat 3 and heelpiece 4 successively along its center, the center on bed die seat 3 top is provided with a cylindrical groove, forming core 5 is embedded with in cylindrical groove, the center of middle mould 2 is provided with work die cavity 6, the position of forming core 5 top correspondence work die cavity 6 is provided with groove 11, and the center of forming core 5, bed die seat 3 and heelpiece 4 is provided with through introduction hole 7.
Wherein, the double-deck cover die that middle mould 2 is made up of internal mold 20 and the external mold 21 of nested setting, the upper surface of forming core 5 is mutually concordant with the upper surface of bed die seat 3, the upper surface of bed die seat 3 and the lower surface part contact of external mold 21, the upper surface of forming core 5 contacts completely with the lower surface of internal mold 20, to make external mold 21 lower surface, bed die seat 3 upper surface and outer die casing 1 internal face three institute region form toroidal cavity 8, the through hole 9 for guiding this toroidal cavity 8 internal gas to flow out is provided with in outer die casing 1, the outer wall of the through outer die casing 1 of this through hole 9 and inwall, and be communicated with described toroidal cavity 8, the middle part of the outside wall surface of external mold 21 is provided with cannelure 10, the taper type that the internal face of internal mold 20 reduces gradually in from top to bottom external diameter, its tapering is 2 °.
Embodiment 2
Roller bearing cold headers diel, as shown in Figure 2, comprise an outer die casing 1, the top of outer die casing 1 is provided with the chamfering in 30 °, outer die casing 1 is provided with middle mould 2, bed die seat 3 and heelpiece 4 successively along its center, the center on bed die seat 3 top is provided with a cylindrical groove, forming core 5 is embedded with in cylindrical groove, the center of middle mould 2 is provided with work die cavity 6, the position of forming core 5 top correspondence work die cavity 6 is provided with groove 11, and the center of forming core 5, bed die seat 3 and heelpiece 4 is provided with through introduction hole 7.
Wherein, the double-deck cover die that middle mould 2 is made up of internal mold 20 and the external mold 21 of nested setting, the upper surface of forming core 5 is mutually concordant with the upper surface of bed die seat 3, the upper surface of bed die seat 3 and the lower surface part contact of external mold 21, the upper surface of forming core 5 and the lower surface part contact of internal mold 20, to make external mold 21 lower surface, bed die seat 3 upper surface and outer die casing 1 internal face three institute region form toroidal cavity 8, the through hole 9 for guiding this toroidal cavity 8 internal gas to flow out is provided with in outer die casing 1, the outer wall of the through outer die casing 1 of this through hole 9 and inwall, and be communicated with described toroidal cavity 8, the middle part of the outside wall surface of external mold 21 is provided with cannelure 10, the taper type that the internal face of internal mold 20 reduces gradually in from top to bottom external diameter, its tapering is 2 °.
Wherein, the taper type of bed die seat 3 upper end is easy to fabrication design, bed die seat 3 upper surface small size flatness is easy to machined and realizes, the disintegrating slag thing avoiding tradition to produce at work is easily mixed in the defect between middle mould 2 and bed die seat 3, and then avoid the damage causing mould and roller during press work, reduce the percent defective of roller.
Preferably, through hole 9 level or be tilted to lower setting, while the gas produced when punching press is flowed out from through hole, the residues such as the iron filings between bed die seat 3 and middle mould 2 also can be discharged with air-flow, avoid occurring slag inclusion phenomenon between middle mould 2 and the contact surface of bed die seat 3.
In the utility model, in should ensureing, between mould 2 and bed die seat 3, there is the suitable magnitude of interference, because the magnitude of interference is excessive, cause the two assembling difficulty, and it is excessive that middle mouldability can be caused to be out of shape, and exceedes the yield modulus limit; The magnitude of interference is too small, can affect die assembly precision.
Claims (7)
1. roller bearing cold headers diel, comprise a ringwise outer die casing (1), middle mould (2) is provided with successively from top to bottom in the inner chamber of outer die casing (1), bed die seat (3) and heelpiece (4), the center on bed die seat (3) top is provided with a cylindrical groove, forming core (5) is embedded with in cylindrical groove, the center of middle mould (2) is provided with work die cavity (6), forming core (5), the center of bed die seat (3) and heelpiece (4) is provided with through introduction hole (7), it is characterized in that: the upper surface of forming core (5) is mutually concordant with the upper surface of bed die seat (3), the upper surface of bed die seat (3) and the lower surface part contact of middle mould (2), to make middle mould (2) lower surface, bed die seat (3) upper surface and outer die casing (1) internal face three institute region form toroidal cavity (8), the through hole (9) for guiding this toroidal cavity (8) internal gas to flow out is provided with in outer die casing (1), the outer wall of this through hole (9) through outer die casing (1) and inwall, and be communicated with described toroidal cavity (8).
2. roller bearing cold headers according to claim 1 diel, is characterized in that: the middle part of middle mould (2) outside wall surface is provided with cannelure (10), the taper type that the internal face of middle mould (2) reduces gradually in from top to bottom external diameter, and its tapering is 2 °.
3. roller bearing cold headers according to claim 2 diel, it is characterized in that: the double-deck cover die that described middle mould (2) is made up of internal mold (20) and the external mold (21) of nested setting, described cannelure (10) is located in the outside wall surface of external mold (21).
4. roller bearing cold headers according to claim 3 diel, is characterized in that: the upper surface of forming core (5) contacts completely with the lower surface of internal mold (20).
5. roller bearing cold headers according to claim 3 diel, is characterized in that: the upper surface of forming core (5) and the lower surface part contact of internal mold (20).
6. roller bearing cold headers according to claim 1 diel, is characterized in that: the position on forming core (5) top correspondence work die cavity (6) is provided with groove (11).
7. roller bearing cold headers according to claim 1 diel, is characterized in that: the top of outer die casing (1) is provided with the chamfering in 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520675235.0U CN204867269U (en) | 2015-09-02 | 2015-09-02 | Cold heading machine stamping die for roller bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520675235.0U CN204867269U (en) | 2015-09-02 | 2015-09-02 | Cold heading machine stamping die for roller bearing |
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| CN204867269U true CN204867269U (en) | 2015-12-16 |
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| CN201520675235.0U Active CN204867269U (en) | 2015-09-02 | 2015-09-02 | Cold heading machine stamping die for roller bearing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141060A (en) * | 2016-08-25 | 2016-11-23 | 厦门同恒金属有限公司 | A kind of cold forging punch die of the little component of rod category of molding major part |
| CN111687364A (en) * | 2020-06-16 | 2020-09-22 | 杭州泽逸机械有限公司 | Needle roller blank forming equipment and blank forming process using same |
| CN112916780A (en) * | 2020-12-29 | 2021-06-08 | 铭昊汽车金属零部件(广州)有限公司 | Automobile parts cold-heading forming die |
-
2015
- 2015-09-02 CN CN201520675235.0U patent/CN204867269U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141060A (en) * | 2016-08-25 | 2016-11-23 | 厦门同恒金属有限公司 | A kind of cold forging punch die of the little component of rod category of molding major part |
| CN111687364A (en) * | 2020-06-16 | 2020-09-22 | 杭州泽逸机械有限公司 | Needle roller blank forming equipment and blank forming process using same |
| CN111687364B (en) * | 2020-06-16 | 2022-04-01 | 杭州泽逸机械有限公司 | Needle roller blank forming equipment and blank forming process using same |
| CN112916780A (en) * | 2020-12-29 | 2021-06-08 | 铭昊汽车金属零部件(广州)有限公司 | Automobile parts cold-heading forming die |
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Address after: 471000 Li Industrial Park, Luolong District, Henan, Luoyang Patentee after: HENAN WEICHUANG BEARING PRECISION TECHNOLOGY Co.,Ltd. Address before: 471000 Li Industrial Park, Luolong District, Henan, Luoyang Patentee before: LUOYANG WEICHUANG BEARING MOULD Co.,Ltd. |