CN205763594U - A kind of closed-die extrusion forging technology mould - Google Patents
A kind of closed-die extrusion forging technology mould Download PDFInfo
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- CN205763594U CN205763594U CN201620469342.2U CN201620469342U CN205763594U CN 205763594 U CN205763594 U CN 205763594U CN 201620469342 U CN201620469342 U CN 201620469342U CN 205763594 U CN205763594 U CN 205763594U
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Abstract
This utility model provides a kind of closed-die extrusion forging technology mould, described mould includes rigidity die holder, floating cavity die, extruding punch and locking click-on mechanism, and rigidity die holder includes boatswain chair, upper padding plate, upper mounted plate, outer bush, outer guiding post, bottom plate, lower bolster and lower shoe；Floating cavity die includes float plate, upper cavity die, lower float plate and lower mold；Extruding punch includes upper male mould and lower punch；Locking click-on mechanism includes claw and leverage；Described mould realizes upper float plate and the connection of lower float plate by locking click-on mechanism, is realized die sinking and the matched moulds of mould by the motion of locking click-on mechanism.The mould that this utility model provides is capable of closed die forming, has simple in construction, and what clamping pressure was big is capable of the closed-die extrusion forging technology mould of mould Bidirectional-squeezing.
Description
Technical field
This utility model relates to hub bearing and manufactures field, in particular to a kind of Closed Extrusion shaping dies.
Background technology
Hub bearing is the walking parts that automobile is important.This bearing is responsible for friction resistance when reducing chassis operating
Power, maintains the important task of automobile normal running.If hub bearing is out of order, noise, axle may be caused
Hold the phenomenon of heating etc., particularly front-wheel to become apparent from, be easily caused the dangerous phenomenons such as direction out of control.Therefore
There are strict requirements in life-span and reliability to bearing.
In prior art, hub bearing manufacture method mainly has casting and forging, wherein uses casting method to need
Use gravity to solution be poured in mould, process polishing through lathe, can complete to produce, use this casting
Making technique, low cost, it is low that part easily produces bubble yield rate.
Wherein forging is divided into open die forging, die forging, rolling ring and special forging, and wherein open die forging is not suitable for batch
Bigger forging；Special forging needs to use professional equipment to produce, and equipment investment is big；Die forging is divided into closed mould
Forging and open die forging, impressing forging, use open die forging, impressing forging part to be easily generated overlap, and the utilization rate of material is low；Closed die forging does not has
Having overlap, stock utilization is high, but uses closed die forging mainly to use the bullet such as nitrogen spring, butterfly spring
Property element locking can divide the extrusion die of die, this mould clamping pressure is little, is adapted only to small-sized forging manufacture,
And the Bidirectional-squeezing of mould can not be realized, working (machining) efficiency is low.
Utility model content
This utility model purpose is to provide a kind of simple in construction, and it is two-way crowded that clamping pressure is capable of greatly mould
The closed-die extrusion forging technology mould of pressure.
Above-mentioned purpose of the present utility model is realized by the technical characteristic of independent claims, dependent claims
The technical characteristic of independent claims is developed in the way of selecting else or be favourable.
For reaching above-mentioned purpose, the utility model proposes a kind of closed-die extrusion forging technology mould, described mould includes
Rigidity die holder, floating cavity die, extruding punch and locking click-on mechanism.
Rigidity die holder includes rigidity die holder, lower rigidity die holder.
Described upper rigidity die holder includes boatswain chair, upper padding plate, upper mounted plate, outer bush；Upper boatswain chair and upper mold
Seat connects, and described upper boatswain chair is connected with upper padding plate, and the bottom even of described upper boatswain chair is distributed 4 outer bush；
Described upper padding plate is connected with upper mounted plate, fixed plate is evenly distributed with multiple mold spring, on
Inner guiding post；Described upper boatswain chair top is provided with multiple screw rod installing hole, described screw rod installing hole run through boatswain chair,
Upper padding plate and upper mounted plate, be provided with screw rod in described screw rod installing hole.
Described lower rigidity die holder includes outer guiding post, bottom plate, lower bolster and lower shoe, lower shoe and lower mold
Seat connects, and described lower shoe is connected with lower bolster, and the top of described lower shoe is evenly distributed with 4 outer guiding posts,
Described lower bolster is connected with bottom plate, described bottom plate is evenly distributed with multiple lower mold spring, under
Inner guiding post.
Arrange on the outer bush arranged on the upper boatswain chair of described upper rigidity die holder and the lower shoe of lower rigidity die holder
Outer guiding post matches.
Floating cavity die includes float plate, upper cavity die, lower float plate and lower cavity die.
It is provided with the upper inner guiding post guide pin bushing matched with upper inner guiding post in upper float plate, upper float plate is provided with
Screwed hole, described screwed hole matches with the screw rod running through upper boatswain chair, upper padding plate and upper mounted plate；Upper floating
Plate is connected with upper cavity die, is provided with upper cavity in described upper cavity die.
The lower inner guiding post guide pin bushing matched with lower inner guiding post, lower float plate and lower cavity die it is provided with in lower float plate
Connect, in described lower cavity die, be provided with lower mode cavity.
It is provided with upper male mould through hole in upper mounted plate, upper float plate, bottom plate, lower float plate are arranged
There is lower punch through hole.
Extruding punch includes upper male mould and lower punch, and described upper male mould passes upper male mould through hole and upper mounted plate
Interference fit；Described lower punch is through lower punch through hole and bottom plate interference fit.
Described upper cavity, lower mode cavity, upper male mould and lower punch form near closed hollow ring.
Described locking click-on mechanism is symmetrically distributed in the both sides of mould, described locking click-on mechanism include claw and
Leverage, one end of described leverage connects the first support seat, and described first supports seat and lower shoe phase
Connecting, the other end of leverage and claw are connected to the both sides of lower float plate by alignment pin.
From above technical scheme, this utility model uses the method for block forging to form hub bearing, adds
Work non-trimming, the utilization rate of material is high；Upper male mould and lower punch are capable of Bidirectional-squeezing, and part forged
Journey need not overturn workpiece, enable to realize Bidirectional-squeezing during a forging and molding, be not required to
Want unnecessary mould and operation, improve work efficiency, saved cost.
Use claw to realize being reliably connected of upper float plate and lower float plate, improve the clamping pressure of mould,
The locking Guan Bi not being only small mould provides connection reliably, closes for medium-sized and large mold locking simultaneously
Close to provide and connect reliably.
Only should be appreciated that all combinations of aforementioned concepts and the extra design described in greater detail below
Can be viewed as in the case of such design is the most conflicting the disclosure utility model theme one
Part.It addition, all combinations of theme required for protection are considered as the utility model theme of the disclosure
A part.
Can be more fully appreciated with from the following description in conjunction with accompanying drawing this utility model teaching aforementioned and its
His aspect, embodiment and feature.The spy of other additional aspect such as illustrative embodiments of the present utility model
Levy and/or beneficial effect will be the most obvious, or concrete real by instruct according to this utility model
Execute in the practice of mode and learn.
Accompanying drawing explanation
Accompanying drawing is not intended to drawn to scale.In the accompanying drawings, each identical or approximation phase illustrated in each figure
Same ingredient can be indicated by the same numeral.For clarity, in each figure, the most each
Ingredient is the most labeled.Now, will be by example and of the present utility model each side is described in reference to the drawings
The embodiment in face, wherein:
Fig. 1 is the top view of closed-die extrusion forging technology mould.
Fig. 2 be along the closed-die extrusion forging technology mould in B face be in die opening state time structural representation.
Fig. 3 be along the closed-die extrusion forging technology mould in B face be in matched moulds state time structural representation.
Fig. 4 is that upper rigid mould is done and the attachment structure schematic diagram of upper float plate.
Fig. 5 is the structural representation of upper mounted plate.
Fig. 6 is the sectional view in Fig. 5 along A face.
Fig. 7 is the structural representation of bottom plate.
Fig. 8 is the sectional view in Fig. 7 along A face.
Detailed description of the invention
In order to know more about technology contents of the present utility model, especially exemplified by specific embodiment and coordinate institute's accompanying drawings explanation
As follows.
It is described with reference to each side of the present utility model in the disclosure, illustrates shown in the drawings of many
Embodiment.Embodiment of the disclosure and must not be intended to include all aspects of the present utility model.Should be appreciated that
Multiple design presented hereinbefore and embodiment, and those design and the embodiment party described in more detail below
Formula can in many ways in any one is implemented, this is because design disclosed in the utility model and reality
Execute example and be not limited to any embodiment.It addition, the discloseder aspects of this utility model can be used alone,
Or otherwise any appropriately combined use disclosed in this utility model.
As shown in Figures 1 to 8, a kind of closed-die extrusion forging technology mould, described mould includes rigidity die holder, floats
Dynamic die, extruding punch and locking click-on mechanism.
Rigidity die holder includes rigidity die holder, lower rigidity die holder.
As shown in Figure 2 and Figure 3, described upper rigidity die holder include boatswain chair 1, upper padding plate 2, upper mounted plate 3,
Outer bush 4；Upper boatswain chair 1 is connected with upper bolster, and described upper boatswain chair 1 is connected with upper padding plate 2, described upper boatswain chair
The bottom even of 1 is distributed 4 outer bush 4；Described upper padding plate 2 is connected with upper mounted plate 3, described solid
Determine on plate 3, to be evenly distributed with multiple mold spring 19, upper inner guiding post 20；Described upper boatswain chair 1 top is arranged
Multiple screw rod installing hole, described screw rod installing hole is had to run through boatswain chair 1, upper padding plate 2 and upper mounted plate 3, institute
Screw rod 17 it is provided with in stating screw rod installing hole.
As shown in Figure 2 and Figure 3, described lower rigidity die holder includes outer guiding post 9, bottom plate 14, lower bolster
15 and lower shoe 16, lower shoe 16 is connected with die shoe, and described lower shoe 16 is connected with lower bolster 15,
The top of described lower shoe 16 is evenly distributed with 4 outer guiding posts 9, described lower bolster 15 and bottom plate 14
Connect, described bottom plate 14 is evenly distributed with multiple lower mold spring 21, lower inner guiding post 22.
On the outer bush 4 arranged on the upper boatswain chair 1 of described upper rigidity die holder and the lower shoe 16 of lower rigidity die holder
The outer guiding post 9 arranged matches.
Floating cavity die includes float plate 6, upper cavity die 7, lower float plate 11 and lower cavity die 10.
The upper inner guiding post guide pin bushing matched with upper inner guiding post 20 it is provided with, in upper float plate 6 in upper float plate 6
Being provided with screwed hole, described screwed hole matches with the screw rod 17 running through upper boatswain chair, upper padding plate and upper mounted plate；
Upper float plate 6 is connected with upper cavity die 7, is provided with upper cavity in described upper cavity die 7.
The lower inner guiding post guide pin bushing matched with lower inner guiding post 20, lower float plate 11 it is provided with in lower float plate 11
It is connected with lower cavity die 10, in described lower cavity die 10, is provided with lower mode cavity.
As shown in Figure 2 and Figure 3, upper mounted plate 3, upper float plate 6 are provided with upper male mould through hole, lower solid
Determine to be provided with lower punch through hole in plate 14, lower float plate 11.
Extruding punch includes that upper male mould 5 and lower punch 13, described upper male mould 5 pass upper male mould through hole with upper
Fixed plate 3 interference fit；Described lower punch 13 is through lower punch through hole and bottom plate 14 interference fit.
Described upper cavity, lower mode cavity, upper male mould 5 and lower punch 13 form near closed hollow ring.
Described locking click-on mechanism is symmetrically distributed in the both sides of mould, and described locking click-on mechanism includes claw 8
And leverage, one end of described leverage connects the first support seat 24, described first support seat 24 with under
Base plate 16 is connected, and the other end of leverage and claw 8 are connected to lower float plate 11 by alignment pin
Both sides.
From above technical scheme, this utility model uses the method for block forging to form hub bearing, adds
Work non-trimming, the utilization rate of material improves；Upper male mould 5 and lower punch 13 are capable of Bidirectional-squeezing, part
Forging process need not overturn workpiece, enable to realize Bidirectional-squeezing during a forging and molding,
Need not unnecessary mould and operation, improve work efficiency, save cost.Claw 8 is used to realize
Being reliably connected of float plate 6 and lower float plate 11, improves the clamping pressure of mould, it is adaptable to medium-sized and big
The locking Guan Bi of mould.
As preferably, upper float plate 6 is provided with the insert matched with described claw 8, makes claw work
Making face to contact with insert, described insert is provided with inclined-plane, and described inclined-plane matches with the inclined-plane of jaw faces
Close, as preferably, the inclined-plane of described insert be provided with ripple protruding, increase claw 8 and insert it
Between contact area, improve the frictional force of claw 8 and insert, increase mold clamping force, the most small-sized mould
The locking Guan Bi of tool provides and connects reliably, provides reliably for medium-sized and large mold locking Guan Bi simultaneously
Connect.
As preferably, the shape of described upper male mould 5 and lower punch 13 is coincide with modular construction to be formed.
As preferably, described leverage includes bottom bar 25, curved bar 26, one end of described bottom bar 25 with
First supports seat 24 is connected, the first spring 28 being provided with in described first support seat 24, described first bullet
One end of spring 28 is connected bottom bottom bar 25, the other end of described first spring 28 and lower shoe 16 phase
Connect；The other end of bottom bar 25 is connected with one end of curved bar 26, the other end of curved bar 26 and claw 8 phase
Connect；Described claw 8 is connected with claw supporting part 23, and claw supporting part 23 one end is fixed on claw 8
Sidewall, the other end of claw supporting part 23 and second supports seat 27 and connects, and described second supports the end of seat 27
Portion is provided with the second spring 29, and the other end of the second spring 29 is connected with lower shoe 16.
As preferably, fixed plate 3 is evenly distributed with 6 mold springs 19, described upper mold
Tool spring 19 one end is arranged in upper mounted plate 3, and the other end of mold spring 19 is with upper float plate 6 even
Connect；Described upper inner guiding post 20 is 4 and is uniformly distributed on upper mounted plate 3, described upper inner guiding post 20 with
The upper inner guiding post guide pin bushing arranged in upper float plate 6 matches.
As preferably, described bottom plate 14 is evenly distributed with 6 lower mold springs 21, described lower mold
Tool spring 21 one end is arranged in bottom plate 14, the other end of lower mold spring 21 and lower float plate 11
Connect；Described lower inner guiding post 22 is 4 and is uniformly distributed on bottom plate 14, described lower inner guiding post 22
Match with the lower inner guiding post guide pin bushing arranged in lower float plate 11.
As preferably, described bottom plate 14 is provided with gag lever post 30, drives when claw supports seat 23
Claw 8 moves out, when the lateral wall of claw 8 contacts with gag lever post 30, and claw 8 stop motion.
As shown in Figures 1 to 8, a kind of closed-die extrusion forging technology mould of the present utility model, its connected mode is such as
Under:
Upper boatswain chair 1 is connected with outer bush 4 bolt.
Lower shoe 16 is connected with outer guiding post 9 bolt.
Outer bush 4 matches with outer guiding post 9.
Upper boatswain chair 1 is connected with upper padding plate 2 bolt.
Upper mounted plate 3 is connected with upper padding plate 2 bolt.
Upper float plate 6 is connected with upper mounted plate 3 screw rod.
Upper float plate 6 is connected with upper cavity die 7 bolt.
Lower shoe 16 supports seat 24 bolt with first and is connected.
Lower shoe 16 supports seat 27 bolt with second and is connected.
Leverage and first supports seat 24 bolt and connects.
Leverage and claw 8 are connected with lower float plate 11 by bolt.
Lower shoe 16 is connected with lower bolster 15 bolt.
Bottom plate 14 is connected with lower bolster 15 bolt.
Lower float plate 11 is connected with lower cavity die 10 bolt.
Claw supporting part 23 is connected with claw 8 bolt.
As in figure 2 it is shown, mould is in off working state, the distance between upper mounted plate 3 and upper float plate 6
For H1, the distance between bottom plate 14 and lower float plate 11 is H2, upper cavity die 7 and lower cavity die 10 it
Between distance be L.
Shown in Fig. 2, Fig. 3, its matched moulds motion mode is as follows:
Upper bolster moves downward vertically with tup, drives upper cavity die 7 to move downward, upper cavity die 7 and lower cavity die
10 pressings form near closed hollow ring, and tup continues to move downward, and screw rod 17 moves upward along screw rod installing hole, on
The mold spring being respectively provided with between fixed plate 3 and upper float plate 6, bottom plate 14 and lower float plate 11
20 and lower mold spring 21 be squeezed compression, H1, H2 taper into, upper male mould 5 and lower punch 13 points
Do not move to blank material direction, when H2 diminishes, the leverage motion of lower float plate 11 both sides, claw
Supporting part 23 drives claw 8 inwardly to rotate, when H2 is zero, and claw 8 and setting in upper float plate 6
Insert connects fixing, and the extruding of blank material is allowed to be formed and drives locking click-on mechanism by upper male mould 5 and lower punch 13
Inwardly slowly close, when upper mounted plate 3 and upper float plate 6 fit, bottom plate 14 and lower float plate 11
During laminating, claw 8 connects and fixes with upper float plate 6, and blank material is extruded by upper male mould 5 and lower punch 13.
In conjunction with Fig. 2, Fig. 3, shown, its point of mould motion mode is as follows:
Extrusion molding terminates, and tup moves upward, and described upper bolster moves upward with tup, upper cavity die 7, under
Die 10 pressure experienced alleviates, and upper float plate 6 is upspring under the spring-force driven dual of mold spring 19,
Lower float plate 11 is upspring under the spring-force driven dual of lower mold spring 21, and H1, H2 become larger, lower floating
The leverage motion of plate 11 both sides, claw supporting part 23 drives claw 8 to be turned out, makes to be connected to
Claw 8 in float plate 6 separates with upper float plate 6, when the sidewall of claw 8 contacts with gag lever post 30,
Claw 8 stop motion, mould divides mould, takes out casting blank.
Although this utility model is disclosed above with preferred embodiment, so it is not limited to this utility model.
This utility model art has usually intellectual, without departing from spirit of the present utility model and model
In enclosing, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is when regarding claim
Book defined person be as the criterion.
Claims (8)
1. a closed-die extrusion forging technology mould, it is characterised in that described mould include rigidity die holder, float recessed
Mould, extruding punch and locking click-on mechanism, wherein:
Rigidity die holder includes rigidity die holder, lower rigidity die holder, wherein:
Described upper rigidity die holder includes boatswain chair, upper padding plate, upper mounted plate, outer bush；Described upper boatswain chair with
Upper bolster connects, and described upper boatswain chair is connected with upper padding plate, and the bottom even of described upper boatswain chair is distributed outside 4
Guide pin bushing；Described upper padding plate is connected with upper mounted plate, and fixed plate is evenly distributed with multiple mold bullet
Spring, upper inner guiding post；Described upper boatswain chair top is provided with multiple screw rod installing hole, and described screw rod installing hole runs through
Upper boatswain chair, upper padding plate and upper mounted plate, be provided with screw rod in described screw rod installing hole；
Described lower rigidity die holder includes outer guiding post, bottom plate, lower bolster and lower shoe, lower shoe and lower mold
Seat connects, and described lower shoe is connected with lower bolster, and the top of described lower shoe is evenly distributed with 4 outer guiding posts,
Described lower bolster is connected with bottom plate, described bottom plate is evenly distributed with multiple lower mold spring, under
Inner guiding post；
Arrange on the outer bush arranged on the upper boatswain chair of described upper rigidity die holder and the lower shoe of lower rigidity die holder
Outer guiding post matches；
Floating cavity die includes float plate, upper cavity die, lower float plate and lower cavity die, wherein:
It is provided with the upper inner guiding post guide pin bushing matched with upper inner guiding post in upper float plate, upper float plate is provided with
Screwed hole, described screwed hole matches with the screw rod running through upper boatswain chair, upper padding plate and upper mounted plate；Upper floating
Plate is connected with upper cavity die, is provided with upper cavity in described upper cavity die；
The lower inner guiding post guide pin bushing matched with lower inner guiding post, lower float plate and lower cavity die it is provided with in lower float plate
Connect, in described lower cavity die, be provided with lower mode cavity；
It is provided with upper male mould through hole in upper mounted plate, upper float plate, bottom plate, lower float plate are arranged
There is lower punch through hole；
Extruding punch includes upper male mould and lower punch, and described upper male mould passes upper male mould through hole and upper mounted plate
Interference fit；Described lower punch is through lower punch through hole and bottom plate interference fit；
Described upper cavity, lower mode cavity, upper male mould and lower punch form near closed hollow ring；
Described locking click-on mechanism is symmetrically distributed in the both sides of mould, described locking click-on mechanism include claw and
Leverage, one end of described leverage connects the first support seat, and described first supports seat and lower shoe phase
Connecting, the other end of leverage and claw are connected to the both sides of lower float plate by alignment pin.
Closed-die extrusion forging technology mould the most according to claim 1, it is characterised in that described upper float plate
On be provided with the insert matched with described claw, described insert is provided with inclined-plane, described inclined-plane and claw work
Fit as face.
Closed-die extrusion forging technology mould the most according to claim 2, it is characterised in that in described insert tiltedly
Ripple it is provided with protruding on face.
Closed-die extrusion forging technology mould the most according to claim 1, it is characterised in that described upper male mould and
The shape of lower punch is coincide with modular construction to be formed.
Closed-die extrusion forging technology mould the most according to claim 1, it is characterised in that described leverage
Including bottom bar, curved bar, one end of described bottom bar supports seat with first and is connected, and sets in described first support seat
The first spring, one end of described first spring is had to be connected with bottom bottom bar, the other end of described first spring
It is connected with lower shoe；The other end of bottom bar is connected with one end of curved bar, the other end of curved bar and claw phase
Connect；Described claw is connected with claw supporting part, and one end of claw supporting part is fixed on claw sidewall, card
The other end of pawl supporting part and second supports seat and connects, and the described second bottom supporting seat is provided with the second spring,
The other end of the second spring is connected with lower shoe.
Closed-die extrusion forging technology mould the most according to claim 1, it is characterised in that fixed plate
On be evenly distributed with 6 mold springs, one end of described mold spring is arranged in upper mounted plate, on
The other end of die springs is connected with upper float plate；Described upper inner guiding post is 4 and is uniformly distributed in fixing
On plate, described upper inner guiding post matches with the upper inner guiding post guide pin bushing arranged in upper float plate.
Closed-die extrusion forging technology mould the most according to claim 1, it is characterised in that described bottom plate
On be evenly distributed with 6 lower mold springs, described lower mold spring one end is arranged in bottom plate, lower mold
The other end of tool spring is connected with lower float plate；Described upper inner guiding post is 4 and is uniformly distributed in bottom plate
On, described lower inner guiding post matches with the lower inner guiding post guide pin bushing arranged in lower float plate.
Closed-die extrusion forging technology mould the most according to claim 1, it is characterised in that described bottom plate
On be provided with gag lever post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469342.2U CN205763594U (en) | 2016-05-20 | 2016-05-20 | A kind of closed-die extrusion forging technology mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469342.2U CN205763594U (en) | 2016-05-20 | 2016-05-20 | A kind of closed-die extrusion forging technology mould |
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| Publication Number | Publication Date |
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| CN205763594U true CN205763594U (en) | 2016-12-07 |
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| CN201620469342.2U Active CN205763594U (en) | 2016-05-20 | 2016-05-20 | A kind of closed-die extrusion forging technology mould |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880451A (en) * | 2016-05-20 | 2016-08-24 | 江苏苏美达德隆汽车部件股份有限公司 | Closed forging formed die |
| CN108772520A (en) * | 2018-06-11 | 2018-11-09 | 蔡铖 | A kind of metal forging device |
| CN113976791A (en) * | 2021-12-10 | 2022-01-28 | 浙江精勇精锻机械有限公司 | Toggle type precise cold room die forging machine and die forging method thereof |
| CN114101362A (en) * | 2021-10-22 | 2022-03-01 | 山东大学 | Aluminum alloy part extrusion die device |
-
2016
- 2016-05-20 CN CN201620469342.2U patent/CN205763594U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880451A (en) * | 2016-05-20 | 2016-08-24 | 江苏苏美达德隆汽车部件股份有限公司 | Closed forging formed die |
| CN108772520A (en) * | 2018-06-11 | 2018-11-09 | 蔡铖 | A kind of metal forging device |
| CN114101362A (en) * | 2021-10-22 | 2022-03-01 | 山东大学 | Aluminum alloy part extrusion die device |
| CN114101362B (en) * | 2021-10-22 | 2022-09-13 | 山东大学 | Aluminum alloy part extrusion die device |
| CN113976791A (en) * | 2021-12-10 | 2022-01-28 | 浙江精勇精锻机械有限公司 | Toggle type precise cold room die forging machine and die forging method thereof |
| CN113976791B (en) * | 2021-12-10 | 2022-09-30 | 浙江精勇精锻机械有限公司 | Toggle type precise cold room die forging machine and die forging method thereof |
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