CN204365837U - The outer pre-shaping device of a kind of hot-forging die - Google Patents
The outer pre-shaping device of a kind of hot-forging die Download PDFInfo
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- CN204365837U CN204365837U CN201420776529.8U CN201420776529U CN204365837U CN 204365837 U CN204365837 U CN 204365837U CN 201420776529 U CN201420776529 U CN 201420776529U CN 204365837 U CN204365837 U CN 204365837U
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Abstract
The utility model provides a kind of hot-forging die outer pre-shaping device, it includes the drift and die that cooperatively interact, wherein, punch body is cylindrical, cylinder-shaped body center is provided with the cooling duct running through upper and lower two ends, body top extends to form mount pad to external expansion, bottom mount pad with main body in the middle part of junction be provided with recessed gathering sill, lower body part is shrunk to up big and down small taper transition region, punch segment is extended to form downward vertically bottom transition region, punch segment bottom end face is provided with processing type groove, die top is provided with the die cavity matched with processing type groove, the main body side sidewall at transition region top is provided with connecting hole, and this connecting hole one end is communicated with cooling duct, and the other end passes main body wall and is in communication with the outside.This programme has that structure is simple, casting effect good, product expression is without the advantage of pit.
Description
Technical field
The utility model relates to Engine Parts manufacture, refers in particular to the outer pre-shaping device of a kind of hot-forging die for automobile engine blank cam bit.
Background technology
The power of automobile is from engine.Engine is the heart of automobile, for the walking of automobile provides power, is related to the dynamic property of automobile, economy, the feature of environmental protection.Engine is by the heat energy of gasoline (diesel oil) or natural gas, by at sealing air cylinder combustion gas expansion, promotion piston does work, change mechanical energy into, all structures of engine are all power conversion service, engine have been passed by the history of more than 100 year along with automobile, is in design, manufactures, technique or all improve a lot in performance, control, but its general principle does not still change.This is epoch of being imbued with creation; the designers of those engines; constantly up-to-date science and technology and engine are combined together; engine is become a complicated electromechanical integrated product; engine performance is made to reach intimate perfect degree; each world-renowned automobile vendor also using the performance of engine as competition bright spot; energy resources consumption more, exhaust emissions etc. and environmental protection related aspect; thus make people while leisurely enjoying Automobile Culture, also can protection of the environment, economize on resources.But in the forging processing of existing automobile engine blank cam bit, original preform design is that mould inside is shaping, major drawbacks is that the oxide skin that bar produces in hot procedure cannot be got rid of outside mould in forging process, thus make material section beat in product external surfaces by oxide skin in preform process, to making product have pit in ball blast rear surface, product surface quality is caused not reach customer specification.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of hot-forging die that structure is simple, casting effect is good for automobile engine blank cam bit outer pre-shaping device.
For achieving the above object, technical scheme provided by the utility model is: the outer pre-shaping device of a kind of hot-forging die, it includes the drift and die that cooperatively interact, wherein, punch body is cylindrical, cylinder-shaped body center is provided with the cooling duct running through upper and lower two ends, body top extends to form mount pad to external expansion, bottom mount pad with main body in the middle part of junction be provided with recessed gathering sill, lower body part is shrunk to up big and down small taper transition region, punch segment is extended to form downward vertically bottom transition region, punch segment bottom end face is provided with processing type groove, die top is provided with die cavity, the main body side sidewall at transition region top is provided with connecting hole, and this connecting hole one end is communicated with cooling duct, and the other end passes main body wall and is in communication with the outside, main body opposite side sidewall has been got on the bus locating slot.
The shape of described cooling duct is identical with punch body peripheral shape.
Die cavity is flat metallic plate.Directly just can process next part after hot pressing processing like this, take out without the need to the product after shaping is required great effort to obtain, thus accelerate the speed of processing, enhance productivity.
To change mould into outer shaping by in-molded for this programme, allows material section in the outer shaping process of mould, discharge product surface because of the oxide skin produced in heating process, finally with outside cooling water discharge machine, thus make the surface of final products there will not be the phenomenons such as pit to occur.This programme has that structure is simple, casting effect good, product expression is without the advantage of pit.
Accompanying drawing explanation
Fig. 1 is structure cut-away view of the present utility model.
Fig. 2 of the present utility modelly faces upward diagram.
Fig. 3 is cavity die structure sectional view of the present utility model.
Detailed description of the invention
Below in conjunction with institute's drawings attached, the utility model is described in further detail, preferred embodiment of the present utility model is: see accompanying drawing 1 to accompanying drawing 3, the outer pre-shaping device of hot-forging die described in the present embodiment includes the drift 1 and die 2 that cooperatively interact, wherein, drift 1 main body is cylindrical, cylinder-shaped body center is provided with the cooling duct 9 running through upper and lower two ends, body top extends to form mount pad 3 to external expansion, bottom mount pad 3 with main body in the middle part of junction be provided with recessed gathering sill 4, lower body part is shrunk to up big and down small taper transition region 5, punch segment 6 is extended to form downward vertically bottom transition region 5, punch segment 6 bottom end face is provided with processing type groove 7, die 2 top is provided with die cavity 8, the main body side sidewall at transition region 5 top is provided with connecting hole 10, and this connecting hole 10 one end is communicated with cooling duct 9, and the other end passes main body wall and is in communication with the outside, main body opposite side sidewall has been got on the bus locating slot 11.The shape of cooling duct 9 is identical with drift 1 main body peripheral shape.Die cavity 8 is flat metallic plate.
To change mould into outer shaping by in-molded for this programme, allows material section in the outer shaping process of mould, discharge product surface because of the oxide skin produced in heating process, finally with outside cooling water discharge machine, thus make the surface of final products there will not be the phenomenons such as pit to occur.
The embodiment of the above is only the preferred embodiment of the utility model, not limits practical range of the present utility model with this, therefore the change that all shapes according to the utility model, principle are done, all should be encompassed in protection domain of the present utility model.
Claims (3)
1. the outer pre-shaping device of hot-forging die, it is characterized in that: it includes the drift (1) and die (2) that cooperatively interact, wherein, drift (1) main body is cylindrical, cylinder-shaped body center is provided with the cooling duct (9) running through upper and lower two ends, body top extends to form mount pad (3) to external expansion, mount pad (3) bottom is provided with recessed gathering sill (4) with the junction in the middle part of main body, lower body part is shrunk to up big and down small taper transition region (5), transition region (5) bottom extends to form punch segment (6) downward vertically, punch segment (6) bottom end face is provided with processing type groove (7), die (2) top is provided with die cavity (8), the main body side sidewall at transition region (5) top is provided with connecting hole (10), and this connecting hole (10) one end is communicated with cooling duct (9), and the other end passes main body wall and is in communication with the outside, main body opposite side sidewall has been got on the bus locating slot (11).
2. the outer pre-shaping device of a kind of hot-forging die according to claim 1, is characterized in that: the shape of cooling duct (9) is identical with drift (1) main body peripheral shape.
3. the outer pre-shaping device of a kind of hot-forging die according to claim 1, is characterized in that: described die cavity (8) is flat metallic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776529.8U CN204365837U (en) | 2014-12-11 | 2014-12-11 | The outer pre-shaping device of a kind of hot-forging die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776529.8U CN204365837U (en) | 2014-12-11 | 2014-12-11 | The outer pre-shaping device of a kind of hot-forging die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204365837U true CN204365837U (en) | 2015-06-03 |
Family
ID=53322086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420776529.8U Active CN204365837U (en) | 2014-12-11 | 2014-12-11 | The outer pre-shaping device of a kind of hot-forging die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204365837U (en) |
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2014
- 2014-12-11 CN CN201420776529.8U patent/CN204365837U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |