CN202185550U - Cold forging die - Google Patents
Cold forging die Download PDFInfo
- Publication number
- CN202185550U CN202185550U CN2011202284090U CN201120228409U CN202185550U CN 202185550 U CN202185550 U CN 202185550U CN 2011202284090 U CN2011202284090 U CN 2011202284090U CN 201120228409 U CN201120228409 U CN 201120228409U CN 202185550 U CN202185550 U CN 202185550U
- Authority
- CN
- China
- Prior art keywords
- die
- cold forging
- fairlead
- counterdie
- connecting portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a cold forging die which comprises an upper die (1) and a lower die (2); the upper die (1) is provided with a guide sleeve (3), a punching sleeve (4) is in close fit inside the guide sleeve (3), an upper punch (5) is in sliding fit inside the punching sleeve (4); the lower die (2) is provided with a die cavity (2.1) used for placing a blank; the lower end of the upper die (1) is provided with a connecting part (1.1) with an opening, and the opening end of the connecting part (1.1) is provided with an inner conical surface (1.1.1); the outer wall of the upper end of the lower die (2) is provided with an outer conical surface (2.2); and the opening end of the connecting part (1.1) is sheathed outside the lower die (2) and is matched with the inner conical surface (1.1.1) and the outer conical surface (2.2). The cold forging die can avoid looseness between the upper die and the lower die.
Description
Technical field
The utility model relates to a kind of cold forging die.
Background technology
Be used to process the cold forging die of the higher cold forging spare of various internal-external circle concentricity precision, the precision of itself is also than higher.See also shown in Figure 1ly, the cold forging die of this type of prior art comprises patrix 1 ' and counterdie 2 '.Described patrix 1 ' is provided with fairlead 3 ', and tight fit has drift cover 4 ' in the described fairlead 3 ', is sliding combined with upper punch 5 ' in the described drift cover 4 '.Described counterdie 2 ' is provided with the die cavity 2.1 ' that is used to place blank, and the lower end of described die cavity 2.1 ' is sliding combined with low punch 6 '.The lower end of described patrix 1 ' is provided with connecting portion 1.1 '; Described connecting portion 1.1 ' is a tight fit in the port of described die cavity 2.1 '; The outer wall of described connecting portion 1.1 ' is straight wall, and the port of described die cavity 2.1 ' is straight mouthful, therefore influenced by long-term punching press; Meeting produces and becomes flexible between described connecting portion 1.1 ' and the die cavity 2.1 ' inwall, thereby can influence the dimensional accuracy of the interior circle of cold forging spare.
Prior art: 1 ', patrix, 1.1 ', connecting portion, 2 ', counterdie, 2.1 ', die cavity, 3 ', fairlead, 4 ', the drift cover, 5 ', upper punch, 6 ', low punch.
The utility model: 1, patrix, 1.1, connecting portion, 1.1.1, inner conical surface, 2, counterdie, 2.1, die cavity; 2.2, male cone (strobilus masculinus), 3, fairlead, 4, the drift cover, 5, upper punch, 6, low punch; 7, ball bearing mechanism, 7.1, stock, 7.1.1, installing hole, 7.2, ball.
The utility model content
The technical problem that the utility model will solve is to provide a kind of making between the upper die and lower die can not produce loosening cold forging die.
The technical solution of the utility model is, a kind of cold forging die with following structure is provided, and comprises upper die and lower die; Described patrix is provided with fairlead, and tight fit has the drift cover in the described fairlead, is sliding combined with upper punch in the described drift cover; Described counterdie is provided with the die cavity that is used to place blank; The lower end of described patrix is provided with the connecting portion of band opening, and the openend of described connecting portion is provided with inner conical surface; The outer wall of the upper end of described counterdie is provided with male cone (strobilus masculinus); The openend of described connecting portion is linked in outside the upper end of described counterdie and described inner conical surface matches with male cone (strobilus masculinus).
After adopting above structure, the utility model cold forging die compared with prior art has the following advantages:
Because the openend of the connecting portion of the cold forging die of the utility model is linked in outside the upper end of described counterdie and described inner conical surface matches with male cone (strobilus masculinus); Owing to pass through cone match between connecting portion and the counterdie; Can press tighter and tighter between the two; Make can not produce between connecting portion and the counterdie loosening, thereby can not influence the dimensional accuracy of the interior circle of cold forging spare.
As a kind of improvement of the utility model, be provided with ball bearing mechanism between described drift cover and the fairlead.Described ball bearing mechanism comprises the stock that is used to install ball; Be provided with a plurality of installing holes that are used to install ball on the described stock symmetrically; Described stock is a tight fit in the described fairlead, and ball all is installed in the described installing hole.After adopting this kind structure, described ball bearing mechanism can be corrected drift and be enclosed within the position in the fairlead, can improve cold forging spare precision, also can more easily the drift cover be fit in the fairlead.
Description of drawings
Fig. 1 is the structural representation of the cold forging die of prior art.
Fig. 2 is the structural representation of the cold forging die of the utility model.
Shown in the figure:
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
See also shown in the accompanying drawing, the cold forging die of the utility model comprises patrix 1 and counterdie 2.Described patrix 1 is provided with fairlead 3, is provided with drift cover 4 in the described fairlead 3, is sliding combined with upper punch 5 in the described drift cover 4.Be provided with ball bearing mechanism 7 between described drift cover 4 and the fairlead 3.Described ball bearing mechanism 7 comprises the stock 7.1 that is used to install ball 7.2; Be provided with a plurality of installing hole 7.1.1 that are used to install ball 7.2 on the described stock 7.1 symmetrically; Described stock 7.1 is a tight fit in the described fairlead 3, in the described installing hole 7.1.1 ball 7.2 is installed all.Described drift cover 4 is a tight fit between the described ball 7.2.
The lower end of described patrix 1 is provided with the connecting portion 1.1 of band opening, and the openend of described connecting portion 1.1 is provided with inner conical surface 1.1.1, and the outer wall of the upper end of described counterdie 2 is provided with male cone (strobilus masculinus) 2.2.The openend of described connecting portion 1.1 is linked in outside the upper end of described counterdie 2 and described inner conical surface 1.1.1 matches with male cone (strobilus masculinus) 2.2.Described counterdie 2 is provided with the die cavity 2.1 that is used to place blank, and the lower end of described die cavity 2.1 is sliding combined with low punch 6.
Claims (3)
1. a cold forging die comprises patrix (1) and counterdie (2); Described patrix (1) is provided with fairlead (3), and the interior tight fit of described fairlead (3) has drift cover (4), is sliding combined with upper punch (5) in the described drift cover (4); Described counterdie (2) is provided with the die cavity (2.1) that is used to place blank; The lower end of described patrix (1) is provided with the connecting portion (1.1) of band opening, and it is characterized in that: the openend of described connecting portion (1.1) is provided with inner conical surface (1.1.1); The outer wall of the upper end of described counterdie (2) is provided with male cone (strobilus masculinus) (2.2); The openend of described connecting portion (1.1) is linked in outside the upper end of described counterdie (2) and described inner conical surface (1.1.1) matches with male cone (strobilus masculinus) (2.2).
2. cold forging die according to claim 1 is characterized in that: be provided with ball bearing mechanism (7) between described drift cover (4) and the fairlead (3).
3. cold forging die according to claim 2 is characterized in that: described ball bearing mechanism (7) comprises the stock (7.1) that is used to install ball (7.2); Be provided with a plurality of installing holes (7.1.1) that are used to install ball (7.2) on the described stock (7.1) symmetrically; Described stock (7.1) is a tight fit in the described fairlead (3), and ball (7.2) all is installed in the described installing hole (7.1.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202284090U CN202185550U (en) | 2011-07-01 | 2011-07-01 | Cold forging die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202284090U CN202185550U (en) | 2011-07-01 | 2011-07-01 | Cold forging die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202185550U true CN202185550U (en) | 2012-04-11 |
Family
ID=45917023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202284090U Expired - Fee Related CN202185550U (en) | 2011-07-01 | 2011-07-01 | Cold forging die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202185550U (en) |
-
2011
- 2011-07-01 CN CN2011202284090U patent/CN202185550U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20120411 Termination date: 20150701 |
|
| EXPY | Termination of patent right or utility model |