CN209156747U - A kind of piston pin extrusion mold - Google Patents
A kind of piston pin extrusion mold Download PDFInfo
- Publication number
- CN209156747U CN209156747U CN201821704486.7U CN201821704486U CN209156747U CN 209156747 U CN209156747 U CN 209156747U CN 201821704486 U CN201821704486 U CN 201821704486U CN 209156747 U CN209156747 U CN 209156747U
- Authority
- CN
- China
- Prior art keywords
- punch
- upper punch
- root
- low
- tapered sleeve
- 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 kind of piston pin extrusion molds, upper punch tapered sleeve is arranged in the root of the upper punch, the root of the low punch is provided with the bulb for increasing low punch root forced area, the beneficial effects of the utility model, by the way that upper punch tapered sleeve is arranged on upper punch, bulb is set on low punch, since the root power transmission forced area of upper low punch increases, after making low punch stability increase, during piston pin extrusion, formed punch is unlikely to deform bending, effectively increase the concentricity of product inner hole and outer circle, formed punch is not easy to break, improve formed punch service life.
Description
Technical field
The utility model relates to die apparatus technical field more particularly to a kind of piston pin extrusion molds.
Background technique
Piston pin is installed in the cylindrical peg of piston skirt.Its middle part passes through connecting rod small end hole, for connecting piston
And connecting rod, effect are that the gas load that piston is born is transmitted to connecting rod, or moves small end of connecting rod band piston together.For
Mitigation weight, piston pin generally use high duty alloy steel making, and are made hollow.
In traditional piston pin production technology, piston pin extrusion concentricity is not easy to guarantee, formed punch easy fracture influences product matter
Amount and production efficiency.
Utility model content
In view of this, the utility model in view of the deficiencies of the prior art, develops a kind of piston pin extrusion mold.
The utility model solves above-mentioned technical problem by following technological means:
A kind of piston pin extrusion mold, including extruder, are equipped with for piston pin mould on the punch press platen of extruder
Have the upper punch and low punch squeezed, upper punch tapered sleeve is arranged in the root of the upper punch, for increasing upper punch root
Forced area, in upper punch tapered sleeve insertion upper punch pressing plate, end is against on upper punch cushion block；The upper punch passes through
The taper of through-hole on upper punch tapered sleeve, the taper and upper punch shaft of the through-hole side wall matches, for upper punch with
The transmitting of power between formed punch tapered sleeve；The root of the low punch is provided with for increasing expanding for low punch root forced area
Portion, the bulb is in pyramidal, and the one end being relatively large in diameter is against on low punch cushion block, the upper punch and the coaxial phase of low punch
To setting, cold extrusion is carried out to mold under the action of upper punch cushion block and low punch cushion block.
Further, the taper of the through-hole side wall of the upper punch tapered sleeve is 1 degree, and the upper punch tapered sleeve is in the frustum of a cone
Shape, one end end face being relatively large in diameter are concordant with the end face of upper punch root.
Further, the taper of the bulb of the low punch is 15 degree.
The utility model has the beneficial effects that bulb is set on low punch by the way that upper punch tapered sleeve is arranged on upper punch,
After making low punch stability increase, during piston pin extrusion, formed punch is unlikely to deform bending, effectively increases product inner hole
With the concentricity of outer circle, formed punch is not easy to break, improves formed punch service life.
Detailed description of the invention
Fig. 1 is the upper punch structural schematic diagram of the utility model；
Fig. 2 is upper punch tapered sleeve structural schematic diagram in the utility model；
Fig. 3 is low punch structural schematic diagram in the utility model；
Fig. 4 is whole installation diagram in the utility model.
Specific embodiment
The utility model is described in detail below with reference to attached drawing:
It is as shown in Figs 1-4:
A kind of piston pin extrusion mold, including extruder, are equipped with for piston pin mould on the punch press platen of extruder
Have the upper punch 1 and low punch 2 squeezed, the extruder is identical as traditional extruder structure, and press section passes through upper pushing
Power plate applies pressure to ram block, so that formed punch is carried out cold extrusion to the mold being located in die holder, in the root of the upper punch 1
It is arranged with upper punch tapered sleeve 3, for increasing the forced area of 1 root of upper punch, the upper punch tapered sleeve 3 is embedded in upper punch pressing plate
In 4, end is against on upper punch cushion block 5；The upper punch 1 passes through the through-hole on upper punch tapered sleeve 3, the cone of the through-hole side wall
It spends and matches with the taper of 1 shaft of upper punch, the transmitting for power between upper punch 1 and upper punch tapered sleeve 3；The low punch 2
Root be provided with the bulb 6 for increasing 2 root forced area of low punch, the bulb 6 is relatively large in diameter in pyramidal
One end be against on low punch cushion block 7, the upper punch 1 and low punch 2 are coaxially oppositely arranged, in upper punch cushion block 5 and undershoot
Cold extrusion is carried out to mold under the action of headrest block 7.
The taper of the through-hole side wall of the upper punch tapered sleeve 3 is 1 degree, the upper punch tapered sleeve 3 in circular cone shape, diameter compared with
Big one end end face is concordant with the end face of 1 root of upper punch.
The taper of the bulb 6 of the low punch 2 is 15 degree.
The utility model has the beneficial effects that bulb is set on low punch by the way that upper punch tapered sleeve is arranged on upper punch,
Since the root power transmission forced area of upper low punch increases, after making low punch stability increase, during piston pin extrusion,
Formed punch is unlikely to deform bending, effectively increases the concentricity of product inner hole and outer circle, and formed punch is not easy to break, improves formed punch and uses the longevity
Life.
Above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although referring to preferred embodiment pair
The utility model is described in detail, those skilled in the art should understand that, it can be to the technology of the utility model
Scheme is modified or replaced equivalently, and without departing from the objective and range of technical solutions of the utility model, should all be covered
In the scope of the claims of the utility model.
Claims (3)
1. a kind of piston pin extrusion mold, including extruder, are equipped with for piston pin mold on the punch press platen of extruder
The upper punch and low punch of extruding, it is characterised in that: upper punch tapered sleeve is arranged in the root of the upper punch, for increasing
The forced area of formed punch root, the upper punch tapered sleeve are embedded in upper punch pressing plate, and end is against on upper punch cushion block；On described
Formed punch passes through the through-hole on upper punch tapered sleeve, and the taper of the taper and upper punch shaft of the through-hole side wall matches, for
The transmitting of power between formed punch and upper punch tapered sleeve；The root of the low punch is provided with for increasing low punch root forced area
Bulb, the bulb is in pyramidal, and the one end being relatively large in diameter is against on low punch cushion block, the upper punch and low punch
It is coaxially oppositely arranged, cold extrusion is carried out to mold under the action of upper punch cushion block and low punch cushion block.
2. a kind of piston pin extrusion mold according to claim 1, which is characterized in that the through-hole side of the upper punch tapered sleeve
The taper of wall is 1 degree, and the upper punch tapered sleeve is in circular cone shape, and the end face of one end end face being relatively large in diameter and upper punch root is flat
Together.
3. a kind of piston pin extrusion mold according to claim 1, which is characterized in that the cone of the bulb of the low punch
Degree is 15 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821704486.7U CN209156747U (en) | 2018-10-19 | 2018-10-19 | A kind of piston pin extrusion mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821704486.7U CN209156747U (en) | 2018-10-19 | 2018-10-19 | A kind of piston pin extrusion mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209156747U true CN209156747U (en) | 2019-07-26 |
Family
ID=67334373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821704486.7U Expired - Fee Related CN209156747U (en) | 2018-10-19 | 2018-10-19 | A kind of piston pin extrusion mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209156747U (en) |
-
2018
- 2018-10-19 CN CN201821704486.7U patent/CN209156747U/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 |
Granted publication date: 20190726 Termination date: 20211019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |