CN207952506U - A kind of multimode thorax forging mold directly forging on-plane surface bent axle - Google Patents
A kind of multimode thorax forging mold directly forging on-plane surface bent axle Download PDFInfo
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- CN207952506U CN207952506U CN201820305247.8U CN201820305247U CN207952506U CN 207952506 U CN207952506 U CN 207952506U CN 201820305247 U CN201820305247 U CN 201820305247U CN 207952506 U CN207952506 U CN 207952506U
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Abstract
The utility model discloses a kind of forging mold of on-plane surface crankshaft forging, especially a kind of multimode thorax forging mold directly forging on-plane surface bent axle belongs to the forging mold technical field of crankshaft forging.A kind of multimode thorax forging mold directly forging on-plane surface bent axle of the utility model, including upper die and lower die, the bottom of upper mold are provided on finish-forging impression on impression and multiple blockings；Impression impression and multiple blocking under is provided under finish-forging at the top of lower die, and impression is identical as the number of impression on blocking and corresponding one by one under the blocking；Upper mold is with after lower die molding, and impression forms finish impression with impression under finish-forging on the finish-forging, and impression forms multiple blockers with impression under corresponding blocking on each blocking；The profile of each blocker moves closer to the profile in finish impression.Using a kind of multimode thorax forging mold directly forging on-plane surface bent axle of the utility model, process is turned without turn round, can directly forge on-plane surface crankshaft forging.
Description
Technical field
The utility model is related to a kind of forging mold of on-plane surface crankshaft forging, especially a kind of directly forging on-plane surface is bent
The multimode thorax forging mold of axis, belongs to the forging mold technical field of crankshaft forging.
Background technology
Bent axle is the critical component in engine.It bears the power that connecting rod transmits, and is transformed into torque and passes through bent axle
It exports and other parts on engine is driven to work.Bent axle is by the centrifugal force of gyrating mass, the gas inertia power of mechanical periodicity
With the collective effect of reciprocal inertia force, bent axle is made to bear the effect of flexion torsion load.Therefore it is required that bent axle has enough intensity
And rigidity, journal surface need are wear-resisting, work is uniform, balance is good.
It is well-known（Referring to Fig. 1 to Fig. 4）, bent axle（Crankshaft forging 1）Including front end axis 11, trunnion 12, rod journal
13, crank wall 14, balance weight 15, rear axle 16.For crank wall 14 and balance weight 15, crank wall 14 is for connecting main shaft
Neck 12 and pitman shaft 13, balance weight 15 are used to balance centrifugal intertia force and its torque that each parts generate.One rod journal 13
A crank throw is constituted with the crank wall 14 and trunnion 12 at its both ends.
Bent axle is divided into plane bent axle and on-plane surface bent axle, and the main distinction of the two is the phase angle of the rod journal of bent axle
ω is different, and phase angle ω refers to：From the axis direction of bent axle, adjacent rod journal（Crank throw in other words）Between folder
Angle.Plane bent axle（Or it is a word bent axle）Rod journal phase angle ω be 180 °.The rod journal of on-plane surface bent axle
Phase angle ω is not equal to 180 °；Such as cross bent axle（Or 90 are cried to write music axis）, the phase angle ω of the rod journal of cross bent axle
It is 90 °；Certainly, according to design requirement, the phase angle ω of the rod journal of bent axle may be 120 °（I.e. 120 write music axis）.It is right
In the manufacture of bent axle, frequently with forging mold crankshaft forging forging.
In the prior art, it is typically for on-plane surface crankshaft forging method：After being forged to plane bent axle, at high operating temperatures
Machine is turned using torsion and is turned as on-plane surface bent axle to turn round, so that the phase angle ω of the rod journal of bent axle meets design requirement（For example it turns round
Turn the cross bent axle for being 90 ° for phase angle ω）.This method is disadvantageous in that：1. increasing by one turns round the machine that turns, equipment is extremely high
Expensive, manufacturing cost is high, and the manufacturing need to increase torsion and turn process, and 2. process is turned in torsion can destroy resultant metal streamline, and bent axle is caused to produce
Product mechanical property, anti-fatigue performance decline.
Invention content
The goal of the invention of the utility model is：In view of the above problems, it is bent to provide a kind of directly forging on-plane surface
The multimode thorax forging mold of axis, the utility model, which need not carry out turning round, turns process, can directly forge on-plane surface crankshaft forging.
The technical solution adopted in the utility model is as follows：
A kind of multimode thorax forging mold directly forging on-plane surface bent axle, including upper die and lower die, the bottom setting of upper mold
There is on finish-forging impression on impression and multiple blockings；Impression impression and multiple blocking under is provided under finish-forging at the top of lower die, it is described
Impression is identical as the number of impression on blocking and corresponding one by one under blocking；After upper mold is molded with lower die, impression on the finish-forging
Finish impression is formed with impression under finish-forging, impression forms multiple blockers with impression under corresponding blocking on each blocking；Respectively
The profile of a blocker moves closer to the profile in finish impression, passes sequentially through each blocker and finish impression, can be real
Blank material is gradually deformed from the pre- forging of each bent axle now and is forged to bent axle finish-forging part.
When forging on-plane surface crankshaft forging using the multimode thorax forging mold of the utility model, each blocker is passed sequentially through
Blank material to be forged is forged in thorax and finish impression so that blank material is gradually deformed into bent axle end from the pre- forging of each bent axle
Forging.It will be evident that each blocker is adapted with corresponding each pre- forging of bent axle, finish impression is mutually fitted with bent axle finish-forging part
Match.
A kind of multimode thorax forging mold directly forging on-plane surface bent axle of the utility model, the blocker have 2,
Respectively the first blocker and the second blocker, and the profile of the second blocker is closer to the profile of finish impression.
That is, impression has 2 on blocking, impression on impression and the second blocking on respectively the first blocking；Impression has 2 under blocking, respectively
For impression under impression under the first blocking and the second blocking.After upper mold is molded with lower die, on the first blocking under impression and the first blocking
Impression forms the first blocker, impression and the second blocker of impression formation under the second blocking on the second blocking.So that waiting forging
The blank material made gradually is forged to bent axle finish-forging part from the pre- forging of the first bent axle, the pre- forging of the second bent axle.It will be evident that the first blocking
Impression is adapted with the pre- forging of the first bent axle, and the second blocker is adapted with the pre- forging of the second bent axle.Similarly, certainly, blocking
Impression can also have 3,4 or more.
Further, the finish impression is located at the middle part of the multimode thorax forging mold, and the first blocker and second is in advance
Forging die thorax is located at the both sides of finish impression.That is, impression is located at the middle part of upper mold on finish-forging, impression and second on the first blocking
Impression is located at the both sides of impression on finish-forging on blocking.Impression is located at the middle part of lower die under finish-forging, under the first blocking impression with
Impression is located at the both sides of impression under finish-forging under second blocking.
Further, first blocker, the second blocker, finish impression axis be mutually parallel.That is, first
Impression on blocking, impression on the second blocking, the axis of impression is mutually parallel on finish-forging.Under first blocking under impression, the second blocking
The axis of impression is mutually parallel under impression, finish-forging.
Further, the deflection for the pre- forging of bent axle that the profile of first blocker is forged is 60%, and second is pre-
The deflection for the pre- forging of bent axle that the profile of forging die thorax is forged is 90%, the bent axle finish-forging part that the profile of finish impression is forged
Deflection be 100%.The deflection of blank material to be forged is 0, for blank material, then, and the deformation of bent axle finish-forging part
Amount is 100%, and the deflection of the pre- forging of the first bent axle is 60%, and the deflection of the pre- forging of the second bent axle is 90%.
A kind of multimode thorax forging mold directly forging on-plane surface bent axle of the utility model, it is impression on the finish-forging, pre-
Head part hole is provided in forging by impression, upper mold is run through in the upper head part hole.The pre- forging of bent axle/bent axle end forging process for fuel finishes
Afterwards, when demoulding, head part cylinder is penetrated by upper head part hole and is conducive to the pre- forging of bent axle/bent axle finish-forging part disengaging upper mold.
A kind of multimode thorax forging mold directly forging on-plane surface bent axle of the utility model, it is impression under the finish-forging, pre-
It is provided with lower head part hole by the lower impression of forging, lower die is run through in the lower head part hole.The pre- forging of bent axle/bent axle end forging process for fuel finishes
Afterwards, when demoulding, head part cylinder is penetrated by lower head part hole and is conducive to the pre- forging disengaging lower die of the pre- forging/bent axle of bent axle.
A kind of multimode thorax forging mold directly forging on-plane surface bent axle of the utility model, the upper mold are gone back in lower die
It is provided with the guiding mechanism for being oriented to when upper mold and lower die molding.Be conducive to upper mold to mold with lower die, and can avoid forging
Modeling tool generates offsetting, influences the forging quality of crankshaft forging.
Further, the guiding mechanism includes being fixedly arranged on the guide post of upper mold bottom and being set to leading at the top of lower die
Xiang Kong, the guide post can move up and down along the hole wall of pilot hole.
A kind of multimode thorax forging mold directly forging on-plane surface bent axle of the utility model, is forged at crank throw and balance weight
Blocker die joint be in ladder planar；The die joint for forging crank throw and the finish impression at balance weight is in ladder planar.
Be conducive to the pre- forging of bent axle/bent axle end forging demoulding.
In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：
1, a kind of multimode thorax forging mold directly forging on-plane surface bent axle of the utility model, can directly forge non-
Plane crankshaft forging turns process without turn round, can reduce the production cost of crankshaft forging；Pass through the multimode thorax forging mold
The on-plane surface crankshaft forging directly forged, metal streamline is completely smooth, after being processed into bent axle finished parts, the power of the bent axle finished parts
It learns performance and anti-fatigue performance is good, service life is long.
2, the design of multiple blockers（For example blocker has 2, respectively the first blocker and the second blocker
Thorax）So that the blank material of bent axle is gradually deformed into bent axle finish-forging part from the pre- forging of bent axle；Forging mold can be improved uses the longevity
Life, is advantageously implemented mass production crankshaft forging.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of crankshaft forging;
Fig. 2 is a kind of front view of crankshaft forging;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the right view of Fig. 2;
Fig. 5 is the schematic diagram when multimode thorax forging mold of the utility model divides mould;
Fig. 6 is the structural schematic diagram of upper mold;
Fig. 7 is the top schematic diagram of upper mold；
Fig. 8 is the structural schematic diagram of lower die；
Fig. 9 is the schematic bottom view of lower die.
It is marked in figure：1- crankshaft forgings, the front ends 11- axis, 12- trunnions, 13- rod journals, 14- cranks wall, 15- balances
Block, 16- rear axles, 17- die parting lines, 2- upper molds, impression on the first blockings of 21-, impression, 23- finish-forging upper molds on the second blockings of 22-
Under the upper head part hole thorax, 24-, 25- guide posts, 3- lower dies, the first blockings of 31- under impression, the second blockings of 32- under impression, 33- finish-forgings
Head part hole, 35- pilot holes, ω-phase angle under impression, 34-.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figures 1 to 9, a kind of multimode thorax forging mold directly forging on-plane surface bent axle of the present embodiment, including
Upper mold 2 and lower die 3, the bottom of upper mold 2 are provided on finish-forging impression on impression 23 and multiple blockings；The top of lower die 3 is provided with
Impression under impression 33 and multiple blockings under finish-forging, impression is identical as the number of impression on blocking and opposite one by one under the blocking
It answers；After the molding of upper mold and lower die, impression 23 and impression 33 under finish-forging form finish impression on the finish-forging, impression on each blocking
Multiple blockers are formed with impression under corresponding blocking；The profile of each blocker moves closer to the wheel in finish impression
Exterior feature passes sequentially through each blocker with finish impression, it can be achieved that blank material is gradually become shape forging from the pre- forging of each bent axle
For bent axle finish-forging part.
Using the utility model multimode thorax forging mold forge on-plane surface crankshaft forging when, make blank material to be forged according to
It is secondary to be forged by each blocker and finish impression so that blank material is gradually deformed into bent axle end from the pre- forging of each bent axle
Forging.It will be evident that each blocker is adapted with corresponding each pre- forging of bent axle, finish impression is mutually fitted with bent axle finish-forging part
Match.
Further optimization based on the present embodiment, as shown in Figure 6 and Figure 8, in another embodiment, the blocker
There are 2, respectively the first blocker and the second blocker, and the profile of the second blocker is closer to finish impression
Profile.That is, impression has 2 on blocking, impression 22 on impression 21 and the second blocking on respectively the first blocking；There is impression under blocking
2, impression 32 under impression 31 and the second blocking under respectively the first blocking.After upper mold is molded with lower die, impression on the first blocking
21 and first impression 31 under blocking form the first blocker, impression 22 and the formation of impression 32 under the second blocking the on the second blocking
Two blockers.So that blank material to be forged is gradually forged to bent axle end from the pre- forging of the first bent axle, the pre- forging of the second bent axle
Forging.It will be evident that the first blocker is adapted with the pre- forging of the first bent axle, the second blocker and the pre- forging phase of the second bent axle
Adaptation.Similarly, certainly, blocker can also have 3,4 or more.Certain blocker can also only have 1, still
The design is disadvantageous in that, since blank material is only just deformed into finish-forging part by primary pre- forging so that mold uses the longevity
Life becomes extremely short, and mold is easily deformed cracking, it is difficult to be applied to mass production crankshaft forging.Therefore blocker have 2 or with
On can overcome the problems, such as this so that blank material improves the service life of forging mold, is able to reality by repeatedly deformation gradually
Existing mass production crankshaft forging.
Further, as shown in Figure 6 and Figure 8, in another embodiment, the finish impression is located at the multimode thorax forge mould
The middle part of tool, the first blocker and the second blocker are located at the both sides of finish impression.That is, impression 23 is located on finish-forging
The middle part of upper mold 2, impression 22 is located at the both sides of impression 23 on finish-forging on impression 21 and the second blocking on the first blocking.Finish-forging
Lower impression 33 is located at the middle part of lower die 3, and impression 32 is located at impression under finish-forging under impression 31 and the second blocking under the first blocking
33 both sides.
Further, as shown in Figure 6 and Figure 8, in another embodiment, first blocker, the second blocker,
The axis of finish impression is mutually parallel.That is, on impression 21 on the first blocking, impression 22 on the second blocking, finish-forging impression 23 axis
Line is mutually parallel.The axis of impression 33 is mutually parallel under impression 32, finish-forging under impression 31, the second blocking under first blocking.
Further, in another embodiment, the change for the pre- forging of bent axle that the profile of first blocker is forged
Shape amount is 60%, and the deflection for the pre- forging of bent axle that the profile of the second blocker is forged is 90%, the profile institute of finish impression
The deflection of the bent axle finish-forging part of forging is 100%.The deflection of blank material to be forged is 0, for blank material, then,
The deflection of bent axle finish-forging part is 100%, and the deflection of the pre- forging of the first bent axle is 60%, and the deflection of the pre- forging of the second bent axle is
90%.Certainly, by changing the profile of the first blocker and the second blocker, with change the pre- forging of the first bent axle and
The deflection of the pre- forging of second bent axle.
Further optimization based on the present embodiment, as shown in Figure 6 and Figure 7, in another embodiment, the finish-forging upper mold
Head part hole 24 is provided on thorax, blocking by impression, upper mold 2 is run through in the upper head part hole 24.The pre- forging of bent axle/bent axle finish-forging part
After forging, when demoulding, head part cylinder is penetrated by upper head part hole 24 is conducive to the pre- forging of bent axle/bent axle finish-forging part and be detached from
Mould 2（Push up the overlap of the pre- forging of bent axle/bent axle finish-forging part）.
Further optimization based on the present embodiment, in another embodiment, as shown in Figure 8 and Figure 9, the finish-forging lower die
Lower head part hole 34 is provided under thorax, blocking by impression, lower die 3 is run through in the lower head part hole 34.The pre- forging of bent axle/bent axle finish-forging part
After forging, when demoulding, head part cylinder is penetrated by lower head part hole 34 and is conducive under the pre- forging of the pre- forging/bent axle of bent axle is detached from
Mould 3（Push up the overlap of the pre- forging of bent axle/bent axle finish-forging part）.
Further optimization based on the present embodiment, in another embodiment, the upper mold 2 is additionally provided with in lower die 3
The guiding mechanism being oriented to when being molded for upper mold and lower die.Be conducive to upper mold 2 to mold with lower die 3, and forge mould can be avoided
Tool generates offsetting, influences the forging quality of crankshaft forging.
Further, as shown in figure 5, in another embodiment, the guiding mechanism includes being fixedly arranged on leading for 2 bottom of upper mold
To column 25 and the pilot hole 35 being set at the top of lower die 2, the guide post 25 can move up and down along the hole wall of pilot hole 35.
In a wherein embodiment, guide post 25 has 4, is distributed in respectively on 4 corners of 2 bottom of upper mold, corresponding pilot hole 35
There are 4, is distributed in respectively on 4 corners at 3 top of lower die.Alternative, guide post 25 is consolidated by the way of interference fit
Surely it is set in 2 bottom of upper mold；It is, of course, also possible to using bolt or the connection type that is screwed, or welding is fixedly connected with mode.
Further optimization based on the present embodiment, in another embodiment, forging crank throw and the blocker at balance weight
The die joint ladder planar of thorax；The die joint for forging crank throw and the finish impression at balance weight is in ladder planar.Be conducive to bent axle
Pre- forging/bent axle end forging demoulding.It is compatible with the die joint of the multimode thorax forging mold, be forged into when using the design
17 shape of die parting line of the crankshaft forging of type is as shown in Figures 1 to 4.
In conclusion using a kind of multimode thorax forging mold directly forging on-plane surface bent axle of the utility model, it can
On-plane surface crankshaft forging directly is forged, process is turned without turn round, the production cost of crankshaft forging can be reduced；It is more by this
The on-plane surface crankshaft forging that impression forging mold directly forges, metal streamline is completely smooth, after being processed into bent axle finished parts, the song
The mechanical property and anti-fatigue performance of axis finished parts are good, and service life is long.The design of multiple blockers（For example blocker has
2, respectively the first blocker and the second blocker）So that the blank material of bent axle is gradually deformed into from the pre- forging of bent axle
Bent axle finish-forging part；The service life that forging mold can be improved is advantageously implemented mass production crankshaft forging.Especially suitable for
The forging of on-plane surface crankshaft forging, such as forging cross bent axle（90 write music axis）, the special small bent axle of balance weight spacing can be forged,
For example the cubing of balance weight is less than the crankshaft forging of 14mm.Certainly, the forging mold of the utility model can be used for forging other
The on-plane surface crankshaft forging of specification, it can also be used to forge plane crankshaft forging.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (10)
1. a kind of multimode thorax forging mold directly forging on-plane surface bent axle, including upper mold（2）And lower die（3）, it is characterised in that：
Upper mold（2）Bottom be provided with impression on finish-forging（23）With impression on multiple blockings；
Lower die（3）Top be provided with impression under finish-forging（33）With impression under multiple blockings, under the blocking impression on blocking
The number of impression is identical and corresponding one by one；
After upper mold is molded with lower die, impression on the finish-forging（23）With impression under finish-forging（33）Form finish impression, each blocking
Upper impression forms multiple blockers with impression under corresponding blocking；The profile of each blocker is moved closer in finish impression
Profile, pass sequentially through each blocker with finish impression, it can be achieved that blank material is gradually deformed from the pre- forging of each bent axle
It is forged to bent axle finish-forging part.
2. a kind of multimode thorax forging mold directly forging on-plane surface bent axle as described in claim 1, it is characterised in that：It is described
Blocker has 2, respectively the first blocker and the second blocker, and the profile of the second blocker is closer to end
The profile of forging die thorax.
3. a kind of multimode thorax forging mold directly forging on-plane surface bent axle as claimed in claim 2, it is characterised in that：It is described
Finish impression is located at the middle part of the multimode thorax forging mold, and the first blocker and the second blocker are located at finish impression
Both sides.
4. a kind of multimode thorax forging mold directly forging on-plane surface bent axle as claimed in claim 2 or claim 3, it is characterised in that：
First blocker, the second blocker, finish impression axis be mutually parallel.
5. a kind of multimode thorax forging mold directly forging on-plane surface bent axle as claimed in claim 2, it is characterised in that：It is described
The deflection for the pre- forging of bent axle that the profile of first blocker is forged is 60%, what the profile of the second blocker was forged
The deflection of the pre- forging of bent axle is 90%, and the deflection for the bent axle finish-forging part that the profile of finish impression is forged is 100%.
6. a kind of multimode thorax forging mold directly forging on-plane surface bent axle as described in claim 1, it is characterised in that：It is described
Impression on finish-forging is provided with head part hole on blocking by impression（24）, the upper head part hole（24）Through upper mold（2）.
7. a kind of multimode thorax forging mold directly forging on-plane surface bent axle as described in claim 1, it is characterised in that：It is described
It is provided with lower head part hole under finish-forging under impression, blocking by impression（34）, the lower head part hole（34）Through lower die（3）.
8. a kind of multimode thorax forging mold directly forging on-plane surface bent axle as described in claim 1, it is characterised in that：It is described
Upper mold（2）With lower die（3）On be additionally provided with the guiding mechanism that the when of being molded for upper mold and lower die is oriented to.
9. a kind of multimode thorax forging mold directly forging on-plane surface bent axle as claimed in claim 8, it is characterised in that：It is described
Guiding mechanism includes being fixedly arranged on upper mold（2）The guide post of bottom（25）And it is set to lower die（3）The pilot hole at top（35）, institute
State guide post（25）It can be along pilot hole（35）Hole wall move up and down.
10. a kind of multimode thorax forging mold directly forging on-plane surface bent axle as described in claim 1, it is characterised in that：Forging
The die joint for making crank throw and the blocker at balance weight is in ladder planar；Forge point of the crank throw with the finish impression at balance weight
Die face is in ladder planar.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820305247.8U CN207952506U (en) | 2018-03-06 | 2018-03-06 | A kind of multimode thorax forging mold directly forging on-plane surface bent axle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820305247.8U CN207952506U (en) | 2018-03-06 | 2018-03-06 | A kind of multimode thorax forging mold directly forging on-plane surface bent axle |
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| CN207952506U true CN207952506U (en) | 2018-10-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802195A (en) * | 2019-10-15 | 2020-02-18 | 济南鑫伟锻造有限公司 | Forging process of crankshaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802195A (en) * | 2019-10-15 | 2020-02-18 | 济南鑫伟锻造有限公司 | Forging process of crankshaft |
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