CN107584064A - A kind of distensible drift in end - Google Patents
A kind of distensible drift in end Download PDFInfo
- Publication number
- CN107584064A CN107584064A CN201711010771.9A CN201711010771A CN107584064A CN 107584064 A CN107584064 A CN 107584064A CN 201711010771 A CN201711010771 A CN 201711010771A CN 107584064 A CN107584064 A CN 107584064A
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- Prior art keywords
- drift
- annular punch
- core
- drift core
- distensible
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Abstract
The invention provides a kind of distensible drift in end, it includes annular punch, the annular punch has been internally formed inner chamber, the joint-cutting for the lower surface for extending to the annular punch is axially formed on the outer wall of the annular punch, the interior intracavitary of the annular punch is equipped with drift core, and the drift core can slide up and down along the annular punch；When the drift core slides down to first position, the lower end of the annular punch is flared out under the extruding of the drift core, and when the drift core upward sliding is to the second place, the lower end of the annular punch is inwardly collapsed.Compared with prior art, the distensible drift in end proposed by the present invention, it is applied to the extruding requirement for the forging for having special inner chamber to out star wheel etc..
Description
Technical field
The present invention relates to precision metal to forge field, more particularly to a kind of distensible drift in end.
Background technology
Some kinds of forging, thereon with inner chamber small in the end and big in the middle, it refer to shown in Fig. 1 and Fig. 2, it shows
A kind of structure of out star wheel 100, the out star wheel 100 include bar portion 101 and positioned at the heads 102 of described one end of bar portion 101,
The upper end on the head 102 is recessed head cavity 103 small in the end and big in the middle, and the inwall of the head cavity 103 is presented
Go out hexapetalous flower line shape.
Common extrusion die, after the extrusion forming of inner chamber of this forging is completed, the inner chamber of forging will firmly wrap
It is rolled on drift, can not removes.Therefore, it is necessary to drift of the prior art is improved, with suitable for out star wheel etc.
The extruding requirement of forging with special inner chamber.
The content of the invention
In order to solve the above technical problems, the present invention proposes a kind of distensible drift in end, its concrete technical scheme is such as
Under：
A kind of distensible drift in end, it includes annular punch, and the annular punch has been internally formed inner chamber, described
Be axially formed the joint-cutting for the lower surface for extending to the annular punch on the outer wall of annular punch, the annular punch it is interior
Intracavitary is equipped with drift core, and the drift core can slide up and down along the annular punch；When the drift core slides down to
During first position, the lower end of the annular punch is flared out under the extruding of the drift core, when the drift core slides up
When moving to the second place, the lower end of the annular punch is inwardly collapsed.
In a specific embodiment, extruded segment of the lower end of the drift core formed with wedge shape, the annular punch
The wedge-shaped compression chamber being used cooperatively with the extruded segment is formed at the bottom of the inner chamber；When the drift core slides down to
During one position, when the extruded segment enters the compression intracavitary, the lower end of the annular punch expands outwardly, when the drift core
During upward sliding to the second place, the extruded segment leaves the compression chamber, and the lower end of the annular punch is inwardly collapsed.
Compared with prior art, the distensible drift in end proposed by the present invention, it is applied to have spy to out star wheel etc.
The extruding requirement of the forging of different inner chamber.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, need to make described in below embodiment being described
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other
Accompanying drawing.Wherein：
Fig. 1 is a kind of structural representation of typical out star wheel；
Fig. 2 is the structural representation of drift of the invention in a specific embodiment under rounding state；
Fig. 3 is the structural representation of drift of the invention in a specific embodiment under expansion state；
Fig. 4 is the stereoscopic figure of drift of the invention in a specific embodiment under rounding state；
Fig. 5 is the installation diagram of drift of the invention in a specific embodiment under expansion state with out star wheel forging；
Fig. 6 is the installation diagram of drift of the invention in a specific embodiment under rounding state with out star wheel forging.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
" one embodiment " or " embodiment " referred to herein refers to may be included at least one implementation of the present invention
Special characteristic, structure or characteristic." in one embodiment " that different places occur in this manual not refers both to same
Individual embodiment, nor the single or selective embodiment mutually exclusive with other embodiment.
As Fig. 2 to Fig. 4 is stated, in one embodiment, the distensible drift in end provided by the invention includes ring-type punching
First 1, the annular punch 1 has been internally formed inner chamber, and some extend to has been axially formed on the outer wall of the annular punch 1
The joint-cutting 11 of the lower surface of the annular punch 1.The interior intracavitary of the annular punch 1 is equipped with drift core 1, the drift core 1
It can be slided up and down along the annular punch 1.
When the drift core 1 slides down to first position, the lower end of the annular punch 1 is in the drift core 1
It is flared out under extruding, when the upward sliding of drift core 1 is to the second place, the lower end of the annular punch 1 is inwardly collapsed.
In the present embodiment, in order that the lower end for obtaining the drift core 1 smoothly enters under the inner chamber of the annular punch 1
End.Extruded segment 21 of the lower end of the drift core 2 formed with wedge shape, the bottom of the inner chamber of the annular punch 1 formed with
The wedge-shaped compression chamber that the extruded segment 21 is used cooperatively.
When the drift core 1 slides down to the first position, when the extruded segment 21 enters the compression intracavitary,
The lower end of the annular punch 1 expands outwardly, when the upward sliding of drift core 1 is to the second place, the extruded segment
21 leave the compression chamber, and the lower end of the annular punch 1 is inwardly collapsed.
In the present embodiment, the distensible drift in end is used exclusively for the head cavity to the out star wheel 100 in Fig. 1
103 carry out extrusion forming, therefore, corresponding.As shown in Figure 2, Figure 4 shows, the bottom of the annular punch 1 is formed with six valves
The drift end 12 of petal shape, the lug boss 13 of the top formed with outwardly convex at the drift end 12, the He of drift end 12
The lug boss 13 is collectively forming mutual with the target shape of the head cavity 103 of the out star wheel 100 for treating finishing and size
The punching structure of matching.
Accordingly, six joint-cuttings that are parallel, being placed equidistant are offered on the outer wall of the annular punch 1 vertically
11, every joint-cutting 11 cuts two corresponding, adjacent petals.
It refer to shown in Fig. 5 and Fig. 6, the operation principle of the distensible drift in the present embodiment is as follows：
Original state, the drift end 12 of drift is rounding state.
Then, the head of out star wheel 100 is positioned in the die cavity of mould, and cause the head cavity of out star wheel 100
Opening upwards.
Then, under the drive of upper bolster, the drift end 12 of its lower end is carried out to out star wheel 100 annular punch 1 completely
In head cavity.Now, small gap, lug boss be present between the inwall of the head cavity of drift end 12 and out star wheel 100
13 bottom is then inconsistent with the top edge of forging stock 1 (d).
Then, as shown in figure 5, the extruded segment 21 of the lower end of drift core 5 enter to the compression intracavitary of the lower end of annular punch 1 and to
The outer extruding compression chamber, drift end 12 are softened (expansion) to realize the extruding to the head cavity inwall of out star wheel 100, together
When lug boss 13 extruding also is produced to the inwall of the head cavity of out star wheel 100, squeezed at drift end 12 and combining for lug boss 13
Pressure, the head cavity of out star wheel 100 realize final molding.
After terminating extruding, as shown in fig. 6, the extruded segment 21 of the lower end of drift core 5 leaves the compression of the lower end of annular punch 1
Chamber, drift end 12 are collapsed again.Now, the up playback of upper bolster is controlled, annular punch 1 smoothly leaves the head of out star wheel 100
Inner chamber.
The description with certain particularity detailed enough has been carried out to the present invention above.Ordinary skill in art
Personnel are it should be understood that what the description in embodiment was merely exemplary, before without departing from true spirit and scope of the present invention
Put make it is all change should all belong to protection scope of the present invention.Scope of the present invention is by described power
What sharp claim was defined, rather than limited by foregoing description in embodiment.
Claims (2)
- A kind of 1. distensible drift in end, it is characterised in that：It includes annular punch, and the annular punch has been internally formed Inner chamber, the joint-cutting for the lower surface for extending to the annular punch, the ring are axially formed on the outer wall of the annular punch The interior intracavitary of shape drift is equipped with drift core, and the drift core can slide up and down along the annular punch；When the drift core slides down to first position, the lower end of the annular punch under the extruding of the drift core to Outer opening, when the drift core upward sliding is to the second place, the lower end of the annular punch is inwardly collapsed.
- 2. the distensible drift in end as claimed in claim 1, it is characterised in that：The lower end of the drift core is formed with wedge shape Extruded segment, the wedge-shaped compression chamber being used cooperatively with the extruded segment is formed at the bottom of the inner chamber of the annular punch；When the drift core slides down to first position, when the extruded segment enters the compression intracavitary, the ring-type punching The lower end of head expands outwardly, and when the drift core upward sliding is to the second place, the extruded segment leaves the compression chamber, institute Inwardly collapse the lower end for stating annular punch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711010771.9A CN107584064A (en) | 2017-10-25 | 2017-10-25 | A kind of distensible drift in end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711010771.9A CN107584064A (en) | 2017-10-25 | 2017-10-25 | A kind of distensible drift in end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107584064A true CN107584064A (en) | 2018-01-16 |
Family
ID=61044531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711010771.9A Pending CN107584064A (en) | 2017-10-25 | 2017-10-25 | A kind of distensible drift in end |
Country Status (1)
| Country | Link |
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| CN (1) | CN107584064A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856620A (en) * | 2018-07-26 | 2018-11-23 | 江苏威鹰机械有限公司 | Automobile gimbal out star wheel cold-finishing mold |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5659556A (en) * | 1979-10-18 | 1981-05-23 | Komatsu Ltd | Forging method of parts having undercut |
| US5697245A (en) * | 1994-07-16 | 1997-12-16 | Maeng; Hyuk Jae | Apparatus for forge-forming outer-ring of constant velocity joint and method thereof |
| JPH10323734A (en) * | 1997-05-28 | 1998-12-08 | Unisia Jecs Corp | Forming equipment for cup like socket |
| CN102861861A (en) * | 2011-07-06 | 2013-01-09 | 张太良 | Precision-forging plastic molding technology of bell shell of ball-cage type universal joint |
| CN103447445A (en) * | 2013-09-20 | 2013-12-18 | 江苏海宇机械有限公司 | Cold forging finishing punch for inner cavities of finish-forge pieces of outer spherical cages |
| CN207464082U (en) * | 2017-10-25 | 2018-06-08 | 江苏理研科技股份有限公司 | A kind of distensible punch in end |
-
2017
- 2017-10-25 CN CN201711010771.9A patent/CN107584064A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5659556A (en) * | 1979-10-18 | 1981-05-23 | Komatsu Ltd | Forging method of parts having undercut |
| US5697245A (en) * | 1994-07-16 | 1997-12-16 | Maeng; Hyuk Jae | Apparatus for forge-forming outer-ring of constant velocity joint and method thereof |
| JPH10323734A (en) * | 1997-05-28 | 1998-12-08 | Unisia Jecs Corp | Forming equipment for cup like socket |
| CN102861861A (en) * | 2011-07-06 | 2013-01-09 | 张太良 | Precision-forging plastic molding technology of bell shell of ball-cage type universal joint |
| CN103447445A (en) * | 2013-09-20 | 2013-12-18 | 江苏海宇机械有限公司 | Cold forging finishing punch for inner cavities of finish-forge pieces of outer spherical cages |
| CN207464082U (en) * | 2017-10-25 | 2018-06-08 | 江苏理研科技股份有限公司 | A kind of distensible punch in end |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856620A (en) * | 2018-07-26 | 2018-11-23 | 江苏威鹰机械有限公司 | Automobile gimbal out star wheel cold-finishing mold |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180116 |