CN109848350A - Band pawl outer ring forging die mechanism - Google Patents
Band pawl outer ring forging die mechanism Download PDFInfo
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- CN109848350A CN109848350A CN201811621183.3A CN201811621183A CN109848350A CN 109848350 A CN109848350 A CN 109848350A CN 201811621183 A CN201811621183 A CN 201811621183A CN 109848350 A CN109848350 A CN 109848350A
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- outer ring
- conical surface
- ejection
- forging
- chamber
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Abstract
A kind of band pawl outer ring forging die mechanism, belongs to forging molding process technical field, comprising: cavity plate has type chamber of the receiving with pawl outer ring blank and the ejection chamber below the type chamber and being coaxially disposed is arranged in；Formed punch forms blank in type chamber for impact forging band pawl outer ring blank, matches with type chamber；And mandril, it is mounted in ejection chamber, is released the band pawl outer ring after being processed by impact forging along top on ejection chamber by driving, wherein ejection chamber top has the conical surface extended out, and the bottom wall of the conical surface and type chamber is directly connected to.Because the type chamber of cavity plate is provided with the conical surface between bottom wall and ejection chamber, by the effect of the conical surface so that ejection process is contributed by inclined-plane, hit the smaller components that can be ejected after die forging of active force of mandril, since ejection active force variation more mitigates, there is no impact force, the problems such as effectively can mitigating and improve components warpage, deformation, simultaneously as hitting power reduces in ejection process, it can also be improved the service life of mold.
Description
Technical field
The present invention relates to the local optimum of the forging technology of the synchro converter ring in car deceleration machine and improvement, belong to forging
Make molding technology thereof field.
Background technique
Metal forging forming technique is very widely used in daily production, has in national economical production non-
Normal important role.Forging be it is a kind of using metal forming machinery to metal stock apply pressure, make its generate plastic deformation to obtain
Processing method with certain mechanical performance, certain shapes and size forging, two big component parts of forging and stamping (forging and punching press)
One of.The defects of as cast condition that metal generates in smelting process is loose can be eliminated by forging, optimizes heterogeneous microstructure, together
When due to saving complete metal streamline, the mechanical performance of forging is generally preferred over the casting of same material.It is born in associated mechanical
High, operating condition sternness important part is carried to adopt in addition to the plate of the better simply available rolling of shape, profile or weldment more
Use forging.According to forging temperature, hot forging, warm forging and cold forging can be divided into.According to compacting mechanism, forging can be divided into open die forging,
Die forging, rolling ring, special forging.
Die forging is divided into open die forging, impressing forging and closed die forging metal stock again to be had in effigurate forging die thorax by buckling
Shape and obtain forging, die forging be generally used for production weight less, the biggish part of batch.Die forging can be divided into hot forging, warm forging and
Cold forging.Warm forging and cold forging are the future thrusts of die forging, also represent the height of forging technology level.According to material point, mould
Forging can also be divided into ferrous metal die forging, non-ferrous metal die forging and powder metal.It as its name suggests, be exactly material is carbon respectively
Non-ferrous metals and the powdered metallurgical materials such as the ferrous metal such as steel, copper aluminium.Closed die forging and enclosed upsetting belong to two kinds of elder generations of die forging
Into technique, for the technique due to not having overlap, the utilization rate of one side material is just high, may with a procedure or a few procedures
Complete the finishing of complex forging；On the other hand, the forced area of forging is just reduced, and required load is also reduced.But
It should be noted that blank cannot be made to be restricted completely, the volume of strict control blank is wanted thus, controls the relative position of forging die and right
Forging measures, and makes great efforts the abrasion for reducing forging die, provides the service life of forging die, reduces production cost, be always this kind of work
Skill problem to be solved in actual production.
Synchro converter ring in car deceleration machine is to keep away formula die forging with the use of blade tooth ring to be processed, and is belonged to inside die forging
Hot-die forging process, outer ring product after forging needs after completing molding from ejection device inside mold cavity, in order to keep away
Exempt from that warpage, situations such as deforming occur during ejection, it is desirable that product during ejection uniform force and
Guarantee certain intensity.
However, hot forging after violent shrink, is needed from ejection device inside concave die cavity, under normal conditions:
1. if the enclasping force of concave die cavity is not especially greatly, not to be strict with to ejecting structure, the ejection of plane formula
Structure can also be ejected smoothly；
2. (such part happened in the more complicated feature of die forging the if enclasping force of concave die cavity is very big
When), have to ejecting structure and compare strict requirements, the bad phenomenons such as warpage, deformation can occur when otherwise ejecting.
At this time, usually consider to be ejected using the ejecting structure of vertical, although can smoothly eject into this way
Product, but its disadvantage are as follows: hitting power required for forming is bigger, and mould can be so greatly reduced than more serious in the abrasion of forging die
The service life of tool improves production cost.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and the improved forging die mechanism ejection of the present invention is more smooth,
It can be obviously improved the service life of mold under normal conditions.
The present invention provides a kind of band pawl outer ring forging die mechanism characterized by comprising
Cavity plate has type chamber of the receiving with pawl outer ring blank and the ejection below the type chamber and being coaxially disposed is arranged in
Chamber；
Formed punch forms blank in type chamber for impact forging band pawl outer ring blank, matches with type chamber；And
Mandril is mounted in ejection chamber, is released outside the band pawl after being processed by impact forging by driving along top on ejection chamber
Ring,
Wherein, ejection chamber top has the conical surface extended out, and the bottom wall of the conical surface and type chamber is directly connected to.
Band pawl outer ring forging die provided by the invention mechanism, can also have the following features:
Wherein, the height of the conical surface are as follows: in pawl height to (pawl height+2mm) range.
Band pawl outer ring forging die provided by the invention mechanism, can also have the following features:
Wherein, the outside diameter of the conical surface is less than or equal to the internal diameter with pawl outer ring.
Band pawl outer ring forging die provided by the invention mechanism, can also have the following features:
Wherein, the angle of the vertical inner wall of the conical surface and ejection chamber is greater than 0 degree and less than 90 degree.
Band pawl outer ring forging die provided by the invention mechanism, can also have the following features:
Wherein, the angle of the vertical inner wall of the conical surface and ejection chamber is preferably 15-75 degree.
Band pawl outer ring forging die provided by the invention mechanism, can also have the following features:
Wherein, knock-pin includes straight-bar and the conically shaped body that is arranged on straight-bar,
The outer conical surface of conically shaped body is parallel with the conical surface to be bonded.
Band pawl outer ring forging die provided by the invention mechanism, can also have the following features:
Wherein, the height of the outer conical surface of conically shaped body is greater than or equal to the height of the conical surface.
Band pawl outer ring forging die provided by the invention mechanism, can also have the following features:
Wherein, the straight-bar of knock-pin and conically shaped body be integrally machined it is molding；Or
Conically shaped body is detachably arranged on straight-bar, and conically shaped body uses the steel alloy or mould steel of hard.
Band pawl outer ring forging die provided by the invention mechanism, can also have the following features:
Wherein, the matrix of cavity plate and tapered portion be integrally machined it is molding；Or
The matrix of cavity plate is with having mounting structure, and tapered portion is dismountable conical surface snare, and conical surface snare is detachable
Be mounted in mounting structure.
Band pawl outer ring forging die provided by the invention mechanism, can also have the following features:
Wherein, formed punch, mandril have for hollow tubular structure.
The action and effect of invention
Related forging die mechanism according to the present invention, because the type chamber of cavity plate is provided with cone between bottom wall and ejection chamber
Face, by the effect of the conical surface so that ejection process is contributed by inclined-plane, the active force for hitting mandril smaller can eject die forging
Components afterwards, since ejection active force variation more mitigates, without impact force, can effectively mitigate even pen fan ejection is zero
The problems such as warping part, deformation, simultaneously as hitting power reduces in ejection process, it can also be improved the service life of mold.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram with pawl outer ring forging die mechanism (formed punch is not shown) in the embodiment of the present invention；
Fig. 2 is the main view of Fig. 1；
Fig. 3 be in Fig. 2 A-A to cross-sectional view；
Fig. 4 is the diagrammatic cross-section with pawl outer ring forging die mechanism (not being put into blank) in the embodiment of the present invention；And
Fig. 5 is that band pawl outer ring forging die mechanism ejects schematic diagram in the embodiment of the present invention.
It illustrates:
The outside diameter of the conical surface 1., the height of the conical surface 2., the conical surface and ejection chamber vertical inner wall angle 3..
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below
Embodiment combination attached drawing is specifically addressed present invention band pawl outer ring forging die mechanism.
Embodiment 1
As shown in Fig. 1,2,3,4,5, band pawl outer ring forging die mechanism 10, including cavity plate 1, formed punch 2 and mandril 3.
Cavity plate 1 has type chamber 5 of the receiving with pawl outer ring blank 4 and the top below the type chamber and being coaxially disposed is arranged in
Chamber 6 out.
Formed punch 2 forms blank in type chamber for impact forging band pawl outer ring blank, matches with type chamber.
Mandril 3 is mounted in ejection chamber, is released the band pawl after being processed by impact forging along top on ejection chamber by driving
Outer ring,
Wherein, ejection chamber top has the conical surface 7 extended out, and the bottom wall 8 of the conical surface and type chamber is directly connected to.
Embodiment 2
On the basis of embodiment 1, as a kind of optimization, 2. the height of the conical surface is with pawl outer ring pawl height to (pawl height
+ 2mm) in range.
Embodiment 3
On the basis of embodiment 1,2, as a kind of optimization, 1. the outside diameter of the conical surface is less than or equal to band pawl outer ring
Internal diameter.
Embodiment 4
On the basis of embodiment 1,2,3, as a kind of optimization, 3. the conical surface and the angle of the vertical inner wall of ejection chamber are
Greater than 0 degree less than 90 degree, further it is preferably 15-75 degree, usually uses 15,30,45,60,75 in practice.
Embodiment 5
On the basis of embodiment 1,2,3,4, as a kind of optimization, in order to preferably make the ejection process of mandril more
Smoothly, knock-pin includes straight-bar 9 and the conically shaped body 10 that is arranged on straight-bar, and the outer conical surface of conically shaped body is parallel with the conical surface
Fitting.This optimal enforcement example ejected because the conical surface of the outer conical surface of the conically shaped body of mandril and ejection chamber agrees with
Journey can be more smooth.
Embodiment 6
On the basis of embodiment 5, as a kind of optimization, wherein the height of the outer conical surface of conically shaped body is greater than or waits
In the height of the conical surface.So set, can be to carry out upper top Shi Buyu blank contact in mandril, impact be reduced, the service life is improved.
Embodiment 7
On the basis of embodiment 5,6, as a kind of optimization, wherein the straight-bar and conically shaped body of knock-pin are that one adds
Work is molding；Or
Conically shaped body is detachably arranged on straight-bar, and conically shaped body uses the steel alloy or mould steel of hard.
Dismountable installation can make interference fit or bolt through firmware etc..In general, because conically shaped body needs and blank connects
Touching ejected, material should use harder material, preferably the steel alloy of hard or mould steel and carry out it is quenched heat at
Reason, and general steel are only used only in straight bar part, it is at low cost, and directly replaced after conically shaped body abrasion.
Embodiment 8
On the basis of embodiment 1-7, as a kind of optimization, wherein the matrix of cavity plate is to be integrally machined with tapered portion
It is molding, use Cutter Body Processing with Machining Center；Or
The matrix of cavity plate is with having mounting structure, and tapered portion is dismountable conical surface snare, and conical surface snare is detachable
Be mounted in mounting structure.Reason same with mandril, since discord formed punch directly contacts, what is be subject to is rushed for the matrix of cavity plate
It is small to hit power, selects general steel, and conical surface snare and formed punch directly contact, the impact force being subject to is big, and material should
Using harder material, preferably the steel alloy of hard or mould steel and Tempering and Quenching is carried out.Matrix and conical surface snare can be with
It is detachably connected to using modes such as bolt fasteners.
Embodiment 9
On the basis of embodiment 1-8, as a kind of optimization, as shown in figure 4, formed punch, mandril have for hollow tubulose
Structure.
The action and effect of embodiment
According to the forging die mechanism that embodiment provides, because the type chamber of cavity plate is provided with cone between bottom wall and ejection chamber
Face, by the effect of the conical surface so that ejection process is contributed by inclined-plane, the active force for hitting mandril smaller can eject die forging
Components afterwards, since ejection active force variation more mitigates, without impact force, can effectively mitigate even pen fan ejection is zero
The problems such as warping part, deformation, simultaneously as hitting power reduces in ejection process, it can also be improved the service life of mold.
Because the conical surface of the outer conical surface of the conically shaped body of mandril and ejection chamber agrees with, ejection process can be more smooth.
The height of the outer conical surface of conically shaped body is greater than or equal to the height of the conical surface.So set, can mandril be into
The contact of Shi Buyu blank is pushed up on row, reduces impact, improves the service life.
Because conically shaped body is detachably arranged on straight-bar, and conically shaped body uses the steel alloy or mould of hard
Have steel, be so arranged, it is contemplated that conically shaped body needs and blank contact is ejected, and material is (excellent using harder material
Select hard steel alloy or mould steel and carry out Tempering and Quenching) and general steel are only used only in straight bar part, in this way
Design directly replaced after conically shaped body abrasion so that the processing cost of components is low, it is easy to maintenance and improve and make
Use the service life.
Because it is hollow tubular structure that formed punch, mandril, which have, mitigate weight, and tubular structure is conducive to heat dissipation.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of band pawl outer ring forging die mechanism characterized by comprising
Cavity plate has the receiving type chamber with pawl outer ring blank and the ejection below the type chamber and being coaxially disposed is arranged in
Chamber；
Formed punch forms blank in type chamber for band pawl outer ring blank described in impact forging, matches with the type chamber；And
Mandril is mounted in the ejection chamber, releases the band after being processed by impact forging along pushing up on the ejection chamber by driving
Pawl outer ring,
Wherein, the ejection chamber top has the conical surface extended out, and the bottom wall of the conical surface and the type chamber is directly connected to.
2. band pawl outer ring forging die according to claim 1 mechanism, it is characterised in that:
Wherein, the height of the conical surface are as follows: in the band pawl height to (pawl height+2mm) range of the outer ring.
3. band pawl outer ring forging die according to claim 1 mechanism, it is characterised in that:
Wherein, the outside diameter of the conical surface is less than or equal to the internal diameter with pawl outer ring.
4. band pawl outer ring forging die according to claim 1 mechanism, it is characterised in that:
Wherein, the angle of the vertical inner wall of the conical surface and the ejection chamber is greater than 0 degree and less than 90 degree.
5. band pawl outer ring forging die according to claim 4 mechanism, it is characterised in that:
Wherein, the angle of the vertical inner wall of the conical surface and the ejection chamber is preferably 15-75 degree.
6. band pawl outer ring forging die according to claim 1 mechanism, it is characterised in that:
Wherein, the knock-pin includes straight-bar and the conically shaped body that is arranged on straight-bar,
The outer conical surface of the conically shaped body is parallel with the conical surface to be bonded.
7. band pawl outer ring forging die according to claim 6 mechanism, it is characterised in that:
Wherein, the height of the outer conical surface of the conically shaped body is greater than or equal to the height of the conical surface.
8. band pawl outer ring forging die according to claim 6 mechanism, it is characterised in that:
Wherein, the straight-bar of the knock-pin and conically shaped body be integrally machined it is molding；Or
The conically shaped body is detachably arranged on the straight-bar, and the conically shaped body using hard steel alloy or
Mould steel.
9. band pawl outer ring forging die according to claim 6 mechanism, it is characterised in that:
Wherein, the matrix of the cavity plate and the tapered portion be integrally machined it is molding；Or
For the matrix of the cavity plate with having mounting structure, the tapered portion is dismountable conical surface snare, the conical surface circle
Set is detachably arranged in the mounting structure.
10. band pawl outer ring forging die according to claim 1 mechanism, it is characterised in that:
Wherein, the formed punch, the mandril have for hollow tubular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621183.3A CN109848350A (en) | 2018-12-28 | 2018-12-28 | Band pawl outer ring forging die mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621183.3A CN109848350A (en) | 2018-12-28 | 2018-12-28 | Band pawl outer ring forging die mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN109848350A true CN109848350A (en) | 2019-06-07 |
Family
ID=66892849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811621183.3A Pending CN109848350A (en) | 2018-12-28 | 2018-12-28 | Band pawl outer ring forging die mechanism |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04210841A (en) * | 1990-12-13 | 1992-07-31 | Honda Motor Co Ltd | Method for forming spiral gear or the like |
| CN202861302U (en) * | 2012-09-27 | 2013-04-10 | 天津市天锻压力机有限公司 | Large aluminum alloy wheel hub forging pressing die |
| CN202861307U (en) * | 2012-09-20 | 2013-04-10 | 芜湖三联锻造有限公司 | Forging mold ejector beam and ejector hole structure thereof |
| CN203390142U (en) * | 2013-08-02 | 2014-01-15 | 泉州市泉永机械发展有限公司 | Supporting wheel forging mold |
| CN203695841U (en) * | 2014-01-23 | 2014-07-09 | 连云港宝石精密重工科技有限公司 | Finish-forging die of forged aluminum alloy wheel |
| CN105903881A (en) * | 2015-02-19 | 2016-08-31 | 国民机械有限责任公司 | Poppet pin ejector |
| CN107377837A (en) * | 2017-07-17 | 2017-11-24 | 保定永兴汽车同步器制造有限公司 | Synchro converter ring blank heats Lifting Device |
| CN207971375U (en) * | 2018-03-19 | 2018-10-16 | 郑州机械研究所有限公司 | A kind of aluminium alloy synchronizer ring gear precision forming device |
-
2018
- 2018-12-28 CN CN201811621183.3A patent/CN109848350A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04210841A (en) * | 1990-12-13 | 1992-07-31 | Honda Motor Co Ltd | Method for forming spiral gear or the like |
| CN202861307U (en) * | 2012-09-20 | 2013-04-10 | 芜湖三联锻造有限公司 | Forging mold ejector beam and ejector hole structure thereof |
| CN202861302U (en) * | 2012-09-27 | 2013-04-10 | 天津市天锻压力机有限公司 | Large aluminum alloy wheel hub forging pressing die |
| CN203390142U (en) * | 2013-08-02 | 2014-01-15 | 泉州市泉永机械发展有限公司 | Supporting wheel forging mold |
| CN203695841U (en) * | 2014-01-23 | 2014-07-09 | 连云港宝石精密重工科技有限公司 | Finish-forging die of forged aluminum alloy wheel |
| CN105903881A (en) * | 2015-02-19 | 2016-08-31 | 国民机械有限责任公司 | Poppet pin ejector |
| CN107377837A (en) * | 2017-07-17 | 2017-11-24 | 保定永兴汽车同步器制造有限公司 | Synchro converter ring blank heats Lifting Device |
| CN207971375U (en) * | 2018-03-19 | 2018-10-16 | 郑州机械研究所有限公司 | A kind of aluminium alloy synchronizer ring gear precision forming device |
Non-Patent Citations (1)
| Title |
|---|
| 孙国臣: "双锥同步器外锥环精密锻造工艺的改进", 《热加工工艺》 * |
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Application publication date: 20190607 |