CN204912646U - Roller bearing forming die - Google Patents
Roller bearing forming die Download PDFInfo
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- CN204912646U CN204912646U CN201520675318.XU CN201520675318U CN204912646U CN 204912646 U CN204912646 U CN 204912646U CN 201520675318 U CN201520675318 U CN 201520675318U CN 204912646 U CN204912646 U CN 204912646U
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Abstract
Roller bearing forming die, be annular outer die sleeve including one, from last to being equipped with well mould down in proper order in the inner chamber of die sleeve outside, die block and heelpiece, it is equipped with the core to inlay in the direct hole that the die block center set up, and the upper and lower terminal surface of core respectively with the upper and lower terminal surface looks parallel and level of die block, the center of core and heelpiece is equipped with the release hole of lining up, core upper portion is equipped with the recess that the through -hole that sets up with well mould center docked constitution work die cavity, the lower part of well mould is from top to bottom the frustum shape that the external diameter reduces gradually, thereby terminal surface under the mould in making, the die block up end encloses the regional toroidal cavity of formation with outer die sleeve internal face three, be equipped with the through -hole that is used for guiding the inside efflux of gas of this toroidal cavity on the well mould, the upper and lower both ends of mould during this through -hole link up, and with toroidal cavity intercommunication, the middle part of the outer wall of mould is equipped with the annular groove in and, in not influencing on the basis of mould intensity, has reduced the area of contact of well mould and outer die sleeve, the interference fit of being convenient for.
Description
Technical field
The utility model designing mould field, is specifically related to a kind of roller bearing mould.
Background technology
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: roller bearing mould, comprise a ringwise outer die casing, mould in being provided with successively along its center from top to bottom in the inner chamber of outer die casing, bed die and heelpiece, core body is embedded with in the clear opening that bed die center is arranged, and the upper and lower end face of core body is mutually concordant with the upper and lower end face of bed die respectively, the center of core body and heelpiece is provided with through introduction hole, core body top is provided with the groove that the through hole arranged with middle mould center docks formation work die cavity, the bottom of middle mould is in the from top to bottom diminishing taper type of external diameter, thus make middle mould lower surface, bed die upper surface and outer die casing internal face three institute region form toroidal cavity, middle mould is provided with the through hole for guiding this toroidal cavity internal gas to flow out, the two ends up and down of the through middle mould of this through hole, and be communicated with described toroidal cavity, and the middle part of middle mould outside wall surface is provided with annular groove.
In the utility model, the lower surface of middle mould does not contact with the upper surface of bed die, and now, the lower surface of middle mould contacts completely with the upper surface of core body.Or, the lower surface of middle mould and the upper surface part contact of bed die.These two kinds of set-up modes, compared with prior art, reduce the contact area of middle mould and bed die, reduce the flatness requirement of the two contact surface.
In the utility model, the top of outer die casing is provided with the chamfering in 45 °.
In the utility model, be embedded with in heelpiece and change plug, utilizing introduction hole by shaping product ejection die process, when causing replacing plug inter deterioration, row can be filled in replacing and changing, avoiding changing whole heelpiece, reduce costs.
Beneficial effect: 1, 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 annular groove 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.
2, 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, producing air cavity during punching press, so cause between middle mould and bed die be difficult to reach flatness requirement, problem that die assembly is difficult to reach required precision.
3, in the utility model, the upper surface of bed die and the lower surface part contact of middle mould, namely in, the bottom of mould is in the from top to bottom diminishing taper type of external diameter, thus make middle mould lower surface have the region do not contacted with bed die of an annular, decreasing the contact area of bed die upper surface and middle mould lower surface, avoiding in traditional moulds because requiring that middle mould and bed die required contact surface of fitting completely reaches the problem of the flatness of high requirement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment 1;
Fig. 2 is the schematic diagram of embodiment 2.
Reference numeral: 1, outer die casing, 2, middle mould, 3, bed die, 4, heelpiece, 5, core body, 6, introduction hole, 7, work die cavity, 8, groove, 9, toroidal cavity, 10, through hole, 11, annular groove, 12, change plug.
Detailed description of the invention
Below in conjunction with specific embodiment, roller bearing mould of the present utility model is described further, but illustrated embodiment is not as to restriction of the present utility model.
Embodiment 1
Roller bearing mould as shown in Figure 1, comprise a ringwise outer die casing 1, the top of outer die casing 1 is provided with the chamfering in 45 °, mould 2 in being provided with successively from top to bottom in the inner chamber of outer die casing 1, bed die 3 and heelpiece 4, be embedded with in heelpiece 4 and change plug 12, core body 5 is embedded with in the clear opening that bed die 3 center is arranged, and the upper surface of core body 5 is mutually concordant with the upper surface of bed die 3, the center of core body 5 and heelpiece 4 is provided with through introduction hole 6, core body 5 top is provided with the groove 8 that the through hole arranged with middle mould 2 center docks formation work die cavity 7, the bottom of middle mould 2 is in the from top to bottom diminishing taper type of external diameter, the lower surface of middle mould 2 does not contact with the upper surface of bed die 3, thus make middle mould 2 lower surface, bed die 3 upper surface and outer die casing 1 internal face three institute region form toroidal cavity 9, middle mould 2 is provided with the through hole 10 for guiding this toroidal cavity 9 internal gas to flow out, the two ends up and down of the through middle mould 2 of this through hole 10, and be communicated with described toroidal cavity 9, the middle part of middle mould 2 outside wall surface is provided with annular groove 11.
Embodiment 2
Roller bearing mould as shown in Figure 2, comprise a ringwise outer die casing 1, the top of outer die casing 1 is provided with the chamfering in 45 °, mould 2 in being provided with successively from top to bottom in the inner chamber of outer die casing 1, bed die 3 and heelpiece 4, be embedded with in heelpiece 4 and change plug 12, core body 5 is embedded with in the clear opening that bed die 3 center is arranged, and the upper surface of core body 5 is mutually concordant with the upper surface of bed die 3, the center of core body 5 and heelpiece 4 is provided with through introduction hole 6, core body 5 top is provided with the groove 8 that the through hole arranged with middle mould 2 center docks formation work die cavity 7, the bottom of middle mould 2 is in the from top to bottom diminishing taper type of external diameter, the lower surface of middle mould 2 and the upper surface part contact of bed die 3, thus make middle mould 2 lower surface, bed die 3 upper surface and outer die casing 1 internal face three institute region form toroidal cavity 9, middle mould 2 is provided with the through hole 10 for guiding this toroidal cavity 9 internal gas to flow out, the two ends up and down of the through middle mould 2 of this through hole 10, and be communicated with described toroidal cavity 9, the middle part of middle mould 2 outside wall surface is provided with annular groove 11.
In the utility model, the taper type that the internal face of middle mould 2 reduces gradually in from top to bottom external diameter, its tapering is 2 ~ 4 °.Wherein, the taper type of middle mould 2 lower end is easy to fabrication design, middle mould 2 lower 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 3, and then avoid the damage causing mould and roller during press work, reduce the percent defective of roller.In the utility model, in should ensureing, between mould 2 and bed die 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 (5)
1. roller bearing mould, comprise a ringwise outer die casing (1), middle mould (2) is provided with successively along its center from top to bottom in the inner chamber of outer die casing (1), bed die (3) and heelpiece (4), core body (5) is embedded with in the clear opening that bed die (3) center is arranged, and the upper surface of core body (5) is mutually concordant with the upper surface of bed die (3), the center of core body (5) and heelpiece (4) is provided with through introduction hole (6), it is characterized in that: core body (5) top is provided with the groove (8) that the through hole arranged with middle mould (2) center docks formation work die cavity (7), the bottom of middle mould (2) is in the from top to bottom diminishing taper type of external diameter, thus make middle mould (2) lower surface, bed die (3) upper surface and outer die casing (1) internal face three institute region form toroidal cavity (9), middle mould (2) is provided with the through hole (10) for guiding this toroidal cavity (9) internal gas to flow out, the two ends up and down of the through middle mould (2) of this through hole (10), and be communicated with described toroidal cavity (9), the middle part of middle mould (2) outside wall surface is provided with annular groove (11).
2. roller bearing mould according to claim 1, is characterized in that: the lower surface of middle mould (2) does not contact with the upper surface of bed die (3).
3. roller bearing mould according to claim 1, is characterized in that: the lower surface of middle mould (2) and the upper surface part contact of bed die (3).
4. roller bearing mould according to claim 1, is characterized in that: the top of outer die casing (1) is provided with the chamfering in 45 °.
5. roller bearing mould according to claim 1, is characterized in that: be embedded with in described heelpiece (4) and change plug (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520675318.XU CN204912646U (en) | 2015-09-02 | 2015-09-02 | Roller bearing forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520675318.XU CN204912646U (en) | 2015-09-02 | 2015-09-02 | Roller bearing forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204912646U true CN204912646U (en) | 2015-12-30 |
Family
ID=54961830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520675318.XU Active CN204912646U (en) | 2015-09-02 | 2015-09-02 | Roller bearing forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204912646U (en) |
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2015
- 2015-09-02 CN CN201520675318.XU patent/CN204912646U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
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. |