CN206951803U - A kind of mould of through hole reducing extrusion forming piston pin - Google Patents
A kind of mould of through hole reducing extrusion forming piston pin Download PDFInfo
- Publication number
- CN206951803U CN206951803U CN201720742154.7U CN201720742154U CN206951803U CN 206951803 U CN206951803 U CN 206951803U CN 201720742154 U CN201720742154 U CN 201720742154U CN 206951803 U CN206951803 U CN 206951803U
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- CN
- China
- Prior art keywords
- upper punch
- mould
- section
- blank material
- extruded segment
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Abstract
It the utility model is related to a kind of mould of through hole reducing extrusion forming piston pin.The die cavity placed for blank material is provided with the mould, the extruded segment of back taper and the upper punch section for being used for upper punch insertion in the extruded segment top and the undershoot head section for being used for low punch insertion in the extruding pars infrasegmentalis are provided with the middle part of the die cavity；The blank material is placed in the extruded segment, and the blank material chamfered and the extruded segment profile are corresponding；The upper punch section, undershoot head section straight tube are set, and the upper punch section bore is more than undershoot head section bore；The upper punch section, undershoot head section, which coordinate, causes upper punch pushes blank material is passed through the extruded segment, undershoot head section.The utility model provides a kind of rational in infrastructure, can process a kind of mould of through hole reducing extrusion forming piston pin of the high-quality piston pin of quality.
Description
Technical field
A kind of mould of through hole reducing extrusion forming piston pin is the utility model is related to, belongs to piston pin processing unit (plant)
Technical field.
Background technology
Piston pin is the movement parts of engine interior, plays a part of connecting crankshaft-link rod and piston, belongs to important motion
Part, and the performance of extrusion forming production technology is particularly significant.
The requirement of piston pin is higher, and the mode mainly produced at present is blanking, annealing, phospholeum, cold extrusion, heat treatment,
Grinding, flaw detection.Cold extrusion is particularly significant in this several procedure, and our company is to add upper and lower mould with four-column type hydraulic press
Two drifts made with M2 materials are mutually relative to extrusion forming up and down for seat cooperation, and gross weight hole is left in centre, is herein material
Metallic fiber line is fractureed place, and the concentricity of two pin endoporus, single-ended axiality, overall length are separately to ensure that in extrusion process
Degree.And present engine makes the transition to high-performance, high-power, low emission, piston pin extrusion moulding process can not meet at present
Working condition requirement.
Utility model content
The utility model is directed to drawbacks described above, and it is an object of the present invention to provide a kind of rational in infrastructure, can process the high-quality piston of quality
A kind of mould of through hole reducing extrusion forming piston pin of pin.
It is for this technical solution adopted in the utility model：The mould（3）Interior be provided with supplies blank material（4）The die cavity of placement
（5）, the die cavity（5）Middle part is provided with the extruded segment of back taper（51）And in the extruded segment（51）Top is used for
Upper punch（1）The upper punch section of insertion（52）And in the extruded segment（51）Bottom is used for low punch（2）Under insertion
Punch segment（53）；
The blank material（4）It is placed on the extruded segment（51）On, the blank material（4）Chamfered and the extruded segment
（51）Profile is corresponding；
The upper punch section（52）, undershoot head section（53）Straight tube is set, the upper punch section（52）Bore is more than low punch
Section（53）Bore；
The upper punch section（52）, undershoot head section（53）Coordinate and cause upper punch（1）Pushing makes blank material（4）By described
Extruded segment（51）, undershoot head section（53）.
The upper punch（1）Following table offers hollow blind hole, the low punch up（2）Top penetrates the blind hole
It is interior.
The low punch（2）Upper surface is designed with the R transition angle being arranged circumferentially.
The die cavity（5）Using overall open architecture form.
The utility model has the advantages that：The wrist pin materials dense internal organization that the utility model mould is produced, intensity
It is significantly increased, metal streamline is consistent, eliminates fracture origin, meets the quality requirement of existing high-power, high-performance enginer.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the piston pin structural representation produced using the utility model device.
Fig. 3 be using it is conventionally produced go out piston pin structural representation.
1 it is upper punch in figure, 2 be low punch, 3 be mould, 4 be blank material, 5 is die cavity；
51 it is extruded segment, 52 be upper punch section, 53 is undershoot head section.
Embodiment
The die cavity 5 placed for blank material 4 is provided with mould 3 described in the utility model, the middle part of die cavity 5 is provided with back taper
The extruded segment 51 of shape and in the top of extruded segment 51 be used for upper punch 1 insert upper punch section 52 and in institute
State the undershoot head section 53 for being used for low punch 2 and inserting of the bottom of extruded segment 51；
The blank material 4 is placed in the extruded segment 51, the chamfered of blank material 4 and the extruded segment 51 profile
It is corresponding；
The upper punch section 52, the straight tube of undershoot head section 53 are set, and the bore of upper punch section 52 is more than 53 mouthfuls of undershoot head section
Footpath；
The upper punch section 52, undershoot head section 53, which coordinate, causes upper punch 1 pushes blank material 4 is passed through the extruded segment
51st, undershoot head section 53.
The following table of upper punch 1 offers hollow blind hole up, and the top of low punch 2 is penetrated in the blind hole.
The upper surface of low punch 2 is designed with the R transition angle being arranged circumferentially.
The die cavity 5 uses overall open architecture form.
The utility model carries out blanking using high-precision circular saw, and atmosphere protection heating furnace carries out oxidation-free annealing process and carried
For high-quality blank material 4；Blank material 4 is subjected to gun drilling（It is dimensioned slightly smaller than finished product hole size）And fall and mould 3 at one end
Reducing is consistent the taper angle of angle, then carries out surface lubrication layer processing.The inner chamber of extrusion die 3 use upper coarse and lower fine middle transition for
The open architecture design of one reducing taper angle, upper punch 1 have certain depth hollow form, and low punch 2 is designed as：Upper end carries
Certain taper play the guiding role while designs R transition angle, generally slim cylindrical construction and is handled through wear-resistant coating.
The utility model implementation：The blank material 4 handled well is put into mould, blank material 4 it is cylindrical with mould 3 on it is thick
Die cavity contacts, at the same endoporus with low punch 1 is cylindrical contacts, the chamfered end of blank material 4 down, with the reducing taper angular contact of mould 3, subtracts
Small blank material 4 starts resistance during reducing, contributes to blank to enter mould, increases plastic deformation ability.Mould 3 is designed as open type knot
Structure, after the completion of crimp process, dynamic first blank material 4 is pushed in descending when being extruded using second reducing of blank material 4,
It is allowed to be stripped.
Installation diagram illustrates during the utility model use：Chamfered good blank material 4 is put into the upper impression of mould 3,
The cylindrical cooperation of bar portion of the endoporus of blank material 4 and low punch 2, when upper punch 1 is pressed downward row, blank material 4 passes through certain angle
Reducing position produces downwards plastic deformation, when upper punch 1 contacts variable diameter angle soon, is put into second blank material 4, continuation is down squeezed
Pressure, by first extrusion forming of blank material 4, the demoulding.
Claims (4)
- A kind of 1. mould of through hole reducing extrusion forming piston pin, it is characterised in that the mould（3）Interior be provided with supplies blank Material（4）The die cavity of placement（5）, the die cavity（5）Middle part is provided with the extruded segment of back taper（51）And in the extruded segment （51）Top is used for upper punch（1）The upper punch section of insertion（52）And in the extruded segment（51）Under being used for of bottom Drift（2）The undershoot head section of insertion（53）；The blank material（4）It is placed on the extruded segment（51）On, the blank material（4）Chamfered and the extruded segment（51） Profile is corresponding；The upper punch section（52）, undershoot head section（53）Straight tube is set, the upper punch section（52）Bore is more than undershoot head section （53）Bore；The upper punch section（52）, undershoot head section（53）Coordinate and cause upper punch（1）Pushing makes blank material（4）Pass through the extruding Section（51）, undershoot head section（53）.
- 2. the mould of a kind of through hole reducing extrusion forming piston pin according to claim 1, it is characterised in that described Upper punch（1）Following table offers hollow blind hole, the low punch up（2）Top is penetrated in the blind hole.
- 3. the mould of a kind of through hole reducing extrusion forming piston pin according to claim 2, it is characterised in that described Low punch（2）Upper surface is designed with the R transition angle being arranged circumferentially.
- 4. the mould of a kind of through hole reducing extrusion forming piston pin according to claim 1, it is characterised in that described Die cavity（5）Using overall open architecture form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720742154.7U CN206951803U (en) | 2017-06-24 | 2017-06-24 | A kind of mould of through hole reducing extrusion forming piston pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720742154.7U CN206951803U (en) | 2017-06-24 | 2017-06-24 | A kind of mould of through hole reducing extrusion forming piston pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206951803U true CN206951803U (en) | 2018-02-02 |
Family
ID=61385254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720742154.7U Expired - Fee Related CN206951803U (en) | 2017-06-24 | 2017-06-24 | A kind of mould of through hole reducing extrusion forming piston pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206951803U (en) |
-
2017
- 2017-06-24 CN CN201720742154.7U patent/CN206951803U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 Termination date: 20200624 |