CN203508898U - Cam block die - Google Patents
Cam block die Download PDFInfo
- Publication number
- CN203508898U CN203508898U CN201320390552.9U CN201320390552U CN203508898U CN 203508898 U CN203508898 U CN 203508898U CN 201320390552 U CN201320390552 U CN 201320390552U CN 203508898 U CN203508898 U CN 203508898U
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- CN
- China
- Prior art keywords
- die
- female die
- cam
- groove
- outer die
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- 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.)
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Abstract
The utility model provides a cam block die. The cam block die comprises a bottom female die, an outer female die and an inner female die. The bottom female die is provided with a through hole matched with the outer female die, a groove matched with the inner female die is formed in one end of the outer female die, a cam hole which penetrates to the other end of the bottom of the outer female die is formed in the face of the groove, one or more outer female die air grooves which connect the cam hole with the side wall of the groove are further formed in the face of the groove, a chamfer is arranged at the end, making contact with the outer female die, of the inner female die, an annular air groove is formed between the chamfer and the outer female die, one or more inner female die air grooves which connect the two ends of the inner female die are formed in the outer side wall of the inner female die, the inner female die is connected with the outer female die through the groove, the outer female die is connected with the bottom female die through the through hole, and the outer female die air grooves and the inner female die air grooves are communicated through the annular air groove. The cam block die has the advantages of being simple in structure, ingenious in design, free of corner collapse and burrs, wide in application range and the like.
Description
Technical field
The utility model relates to forge hot cavity die structure in stress metal processing technique field.Be applicable to cam bit and other special-shaped product moulds, belong to the precision forging technical field of complicated shape part.
Background technology
Cam bit is the strength member in automobile engine, and for controlling the opening and closing action of valve, product is non-symmetrical part, required precision is high, appearance profile degree requirement≤0.2mm, and corner's chamfering requires full, and without burr, to guarantee going back reserve part forging surface after follow-up mill processing.When builder cam piece or other special-shaped products, because shape of product is complicated, asymmetric, appearance profile degree requires high, for product full level, has requirement.When traditional design mould structure, adopt unitary mould, product design profile tolerance can guarantee, but the weak point of this mould structure is:
(1) when forge hot is pushed, there is gas to be present in mould, the problem such as corner's chamfering is not fully filled, and causes the angle of collapsing large, inhomogeneous, can not meet product appearance requirement after follow-up mill processing.
(2) problem being not fully filled for solving unitary mould, need to offer at the product correspondence place of being not fully filled pore, and owing to being forge hot, metal is easy to flow, and easily at pore place, produces burr, and this can have influence on the following process of product.
Utility model content
The utility model technical issues that need to address be to provide a kind of simple in structure, design ingenious, corner without the angle of collapsing, the carrot-free cam bit mould in pore place.
For solving the problems of the technologies described above the utility model, provide following scheme: a kind of cam bit mould, it includes end die, outer die and interior die, and die of the described end is provided with the through hole matching with described outer die; Described outer die one end is provided with the groove matching with described interior die, on the face of described groove, be provided with the cam hole that is through to the other end at the bottom of described outer die, the face of described groove is also provided with the outer die air drain of the described cam hole of one or more connections and described recess sidewall; Described interior die is provided with chamfering with one end that described outer die contacts, and between described chamfering and described outer die, forms annular gas tank, and the lateral wall of described interior die is provided with the interior die air drain at the described interior die of one or more connections two ends; Described interior die is connected with described outer die by described groove, and described outer die is connected with die of the described end by described through hole; Described outer die air drain is communicated with by described annular gas tank with described interior die air drain.
As a kind of preferred version of a kind of cam bit mould described in the utility model, wherein said outer die and described interior die are located by alignment pin.
As a kind of preferred version of a kind of cam bit mould described in the utility model, there is the modular angle that enters of 1 ° wherein said outer die and described interior die cooperation place.
As a kind of preferred version of a kind of cam bit mould described in the utility model, die of the wherein said end and described outer die are H7/z6 interference fit, and described outer die and described interior die are H7/m6 interference fits.
As a kind of preferred version of a kind of cam bit mould described in the utility model, the place that wherein said interior die contacts with described cam hole is provided with the cam groove matching with described cam bit.
As a kind of preferred version of a kind of cam bit mould described in the utility model, on wherein said cam groove, be provided with the manhole that runs through described interior die two ends.
The utlity model has at least following beneficial effect:
One, simple in structure, the contour structures of three dies is simple, is convenient to industry and manufactures and promote on a large scale.
Two, design ingeniously, the air drain on the air drain on outer die and interior die is communicated with by an annular gas tank of centre, has made it to form a complete exhaust passage.
Three,, without the angle of collapsing, the exhaust passage of mould corner design makes corner's noresidue gas, can not make product chamfering there is the angle of collapsing.
Four,, without burr, a plurality of air drains on outer die and annular gas tank make exhaust more unobstructed and by metal liquid, filled with Shi Buhui and occur burr at pore place.
Five, applied range, the utility model is not only applicable to cam bit, is also applicable to other various special-shaped products.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of cam bit mould described in the utility model.
Fig. 2 is the cutaway view of the outer cavity die structure schematic diagram front view of cam bit mould described in the utility model.
Fig. 3 is the upward view of the outer cavity die structure schematic diagram of cam bit mould described in the utility model.
Fig. 4 is the top view of the outer cavity die structure schematic diagram of cam bit mould described in the utility model.
Fig. 5 is the partial enlarged drawing of the outer cavity die structure schematic diagram top view of cam bit mould described in the utility model.
Fig. 6 is the cutaway view of structural representation front view of the interior die of cam bit mould described in the utility model.
Fig. 7 is the top view of structural representation of the interior die of cam bit mould described in the utility model.
Fig. 8 is the partial enlarged drawing of structural representation top view of the interior die of cam bit mould described in the utility model.
The specific embodiment
The assembling schematic diagram that shows a kind of embodiment of the present utility model with reference to Fig. 1, a kind of cam bit mould that the utility model provides comprises end die 1, outer die 2 and interior die 3, wherein on end die 1, be provided with the through hole 11 matching with outer die 2, with reference to Fig. 2, on outer die 2, be provided with the groove 21 matching with interior die 3, interior die 3 is connected with outer die 2 by groove 21, with reference to Fig. 2 and Fig. 3, between interior die 3 and outer die 2, there is the modular angle that enters of 1 °, between interior die 3 and outer die 2, adopt H7/m6 interference fits, make interior die 3 can with outer die 2 on groove 21 convenient for assembly, outer die 2 is connected with end die 1 by the through hole 11 on end die 1, between outer die 2 and end die 1, adopts H7/z6 interference fit, makes can clamp between outer die 2 and end die 1, increases the stability of mould.
With reference to Fig. 1, between outer die 2 and interior die 3, adopt alignment pin 4 location, guaranteed the positional precision of mould.The structural representation of the outer die described in the utility model showing with reference to Fig. 2-5, is also provided with the cam hole 22 of connecting groove 21 and its other end on outer die 2, these cam hole 22 cross sectional shapes are irregularly shaped.On the bottom surface of its groove 21, be also provided with seven outer die air drains 23 that connect cam hole 22 and groove 21 sidewalls, the cross sectional shape of this outer die air drain 23 is arc.The structural representation of the interior die 3 showing with reference to Fig. 6-8, one end that interior die 3 contacts with outer die 2 is provided with the cam groove 31 matching with outer die 2 overhead cam hole 22 shapes, is also provided with a manhole 32 that is through to interior die 3 bottoms on the bottom surface of cam groove 31.In addition, the one end contacting with outer die 2 on interior die 3 is also provided with chamfering 33, and this chamfering 33 forms with the corner of outer die 2 annular gas tank 5 that a circle seals.At the lateral wall of interior die 3, be also provided with the interior die air drain 34 of die 3 two ends end faces in four connections, the cross sectional shape of this interior die air drain 34 is arc.Described outer die air drain 23 and interior die air drain 34 are communicated with by annular gas tank 5, and these three air drains have formed exhaust passage.
The workflow of the cam bit mould in the present embodiment is as follows: interior die 3 is located by connecting by alignment pin 4 with outer die 2, guarantee its position degree, then outer die 2 is placed among the through hole 11 of end die 1, make it clamping, then end die 1 is fixed, in the cam hole 22 of die 2, insert high-temperature metal outward, then carry out under external force crimp, start to be full of cam hole 22, now the air in cam hole 22 all starts to concentrate on the corner of cam hole 22 belows, and under the extruding of external force, enter outer die air drain 23, and then enter the annular gas tank 5 being connected with outer die air drain 23, and then discharge mould outside by the interior die air drain 34 being connected with annular gas tank 5, metal in cam hole 22 is evenly distributed in cam hole 22, because gas is discharged by corner's air drain, therefore the chamfering place of product can be because of unnecessary gas occur collapsing angle or skewness.
Above-mentioned explanation has fully disclosed the specific embodiment of the present utility model.It is pointed out that being familiar with any change that person skilled in art does the specific embodiment of the present utility model does not all depart from the scope of claims of the present utility model.Correspondingly, the scope of claim of the present utility model is also not limited only to previous embodiment.
Claims (6)
1. a cam bit mould, is characterized in that: described cam bit mould includes end die, outer die and interior die,
Die of the described end is provided with the through hole matching with described outer die;
Described outer die one end is provided with the groove matching with described interior die, on the bottom surface of described groove, be provided with the cam hole that is through to the other end at the bottom of described outer die, the bottom surface of described groove is also provided with the outer die air drain of the described cam hole of one or more connections and described recess sidewall;
Described interior die is provided with chamfering with one end that described outer die contacts, and between described chamfering and described outer die, forms annular gas tank, and the lateral wall of described interior die is provided with the interior die air drain at the described interior die of one or more connections two ends;
Described interior die is connected with described outer die by described groove; Described outer die is connected with die of the described end by described through hole;
Described outer die air drain is communicated with by described annular gas tank with described interior die air drain.
2. a kind of cam bit mould according to claim 1, is characterized in that: described outer die and described interior die are located by alignment pin.
3. a kind of cam bit mould according to claim 1, is characterized in that: there is the modular angle that enters of 1 ° described outer die and described interior die cooperation place.
4. a kind of cam bit mould according to claim 3, is characterized in that: die of the described end and described outer die are H7/z6 interference fit, and described outer die and described interior die are H7/m6 interference fits.
5. a kind of cam bit mould according to claim 1, is characterized in that: the place that described interior die contacts with described cam hole is provided with the cam groove matching with described cam bit.
6. a kind of cam bit mould according to claim 5, is characterized in that: on described cam groove, be provided with the manhole that runs through described interior die two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320390552.9U CN203508898U (en) | 2013-07-01 | 2013-07-01 | Cam block die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320390552.9U CN203508898U (en) | 2013-07-01 | 2013-07-01 | Cam block die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203508898U true CN203508898U (en) | 2014-04-02 |
Family
ID=50367880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320390552.9U Expired - Lifetime CN203508898U (en) | 2013-07-01 | 2013-07-01 | Cam block die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203508898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551479A (en) * | 2013-07-01 | 2014-02-05 | 江苏森威精锻有限公司 | Cam bit die |
-
2013
- 2013-07-01 CN CN201320390552.9U patent/CN203508898U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551479A (en) * | 2013-07-01 | 2014-02-05 | 江苏森威精锻有限公司 | Cam bit die |
| CN103551479B (en) * | 2013-07-01 | 2016-01-20 | 江苏森威精锻有限公司 | A kind of Cam bit die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |